Science topic

Lymphoma - Science topic

A general term for various neoplastic diseases of the lymphoid tissue.
Questions related to Lymphoma
  • asked a question related to Lymphoma
Question
2 answers
Hey all
I wish to know if I can get MM.1S cell line. (MM.1S is a B lymphoblast cell that was isolated from the peripheral blood of a Black, 42-year-old, female patient with immunoglobulin A lambda myeloma. This cell line was deposited by S. Rosen.)
This particular cell line is not available in NCCS repository.
Thank you in advance
Relevant answer
Answer
Dear V H Krishna Prasad,
Check the following Institute.
National Institute of Pharmaceutical Education and Research
NIPER Ahmedabad,
Opposite Air force Station, Palaj
Gandhinagar-382355, Gujarat, India.
 +91 79 66745555 , +91 79 66745501
Their cell line repository consists of mammalian cancer cell lines, murine primary cell lines and non-cancerous cell lines. I am not sure whether you will succeed but you can always try. lf you are interested, MM.1S cell line is available at ATCC
Best.
  • asked a question related to Lymphoma
Question
1 answer
I'm studying the drug combination strategies for R/R NK/T cell lymphoma. We can obtain clinical biopsy samples for drug combinations testing in vitro to evaluate the combination effect on primary lymphoma cell killing. However, we cannot find a method to isolate and culture primary NK/T lymphoma cells. Could you provide some help and suggestions? Thanks very much.
Relevant answer
Answer
Advices for primary T cell lymphoma isolation and culture are also appreciated.
  • asked a question related to Lymphoma
Question
3 answers
Like many people, we're looking for an alternative to Matrigel for flank tumor models. We typically used the high concentration matrigel solution 50-100uL mixed 1:1 to a cellular solution. We're working with lymphomas in either NSG or Bl6 mice. Thanks!
Relevant answer
Answer
You may consider using Cultrex Basement Membrane Extract. Please refer to the link below for more information on this product.
Geltrex could be an alternative as well. Please refer to the links below.
Hope this helps!
Best.
  • asked a question related to Lymphoma
Question
1 answer
I wanted to perform RNA extraction of U937 cells (Human Myeloid Lymphoma) by TRIZOL method, after adding TRIZOL to the sample I had kept it for incubation at room temp. and since I was not able to Extract RNA immediately I thought that I will keep it at -80C however I forgot to keep the samples at -80 before leaving. I wanted to know If I should proceed with RNA extraction as It will 2 days that the sample will be in trizol and after which I can process it.
Thank you.
Relevant answer
Answer
You shouldn’t have forgotten to keep the sample at -80 degree C before leaving the lab. Anyway, such incidences keep happening! For your information, RNA is stable in trizol which deactivates RNases. However, the sample can be kept at room temperature at this point for, at most, a few hours, or the sample can be frozen for later use at -80°C.
So, you should not proceed with RNA extraction for this sample which has been kept at room temperature for two days.
Best.
  • asked a question related to Lymphoma
Question
8 answers
How to compare diagnostic efficacy of two methods (MRI and CT) using ROC-curve analysis? Is it possible to construct ROC-curves and compare AUC using SPSS or MedCalc? This task is different from finding optimal threshold for quantitative parameter which is easy to perform.
Example: I want to compare diagnostic efficacy of MRI-DWI and CT for differentiation of normal and involved lymph nodes in lymphoma. 2666 lymph node groups are available for analysis.
MRI-DWI: TP 920, FP 3, TN 1710, FN 33.
CT: TP 851, FP 3, TN 1710, FN 102.
Relevant answer
Answer
Not sure how it really works, but in papers, I've come across something called the DeLong's test used to compare different AUCs.
  • asked a question related to Lymphoma
Question
1 answer
I want to compare WNT activity status in a few lymphoma cell lines and I'm wondering if I can use B-catenin levels (via western blot or FACS) to do it?
I know that the right way to go Is to do TOP Flash assay, however transfection of lymphoma cell lines is nightmarish and requires a lot of optimization. I'm also not sure if expression of AXIN2 will fit here.
Relevant answer
Answer
Hi Karol,
It's probably worth a try. Alternatively, you could also try subcellular fractionation and comparing cytoplasmic to nuclear B-cat. We have done it in colon here:
but is has also been done in some lymphoma cell lines eg here:
You will probably want to incorporate the use of a Wnt ligand and a Wnt inhibitor to give you a bit more confidence that your tecnique works and some idea about its sensitivity.
I would imagine that you are likely to run into some issues comparing between different cell lines if they cover a wide range from the endless list of lymphoma subtypes available.
Also, depending on what you find and where you aim to take your project, you may be asked by reviewers to confirm your findings more quantitatively further down the line. I would probably start optimizing this sooner rather than later.
  • asked a question related to Lymphoma
Question
2 answers
If a drug that's known to inhibit STAT3 and cause mitochondrial uncoupling results in cytotoxicity that is unique to SU-DHL-1 cell line but not in other cancer cells, what may be the reason for this?
Relevant answer
Answer
There are differences between cancer cell lines with respect to key mutations that play a role in many different biological processes in the cell like impaired apoptosis, increased drug efflux which could cause differing drug sensitivity.
Generally, cell lines appear to respond to drugs in two broad patterns.
One group of drugs, primarily targeting machinery involved in the cell cycle, protein chaperoning or DNA repair which elicit similar patterns of response across all cell lines.
A second group of drugs, trigger responses that are specific to cell type. Different cell types respond to these drugs in qualitatively different ways. Such drugs largely target the signaling pathways that are disrupted by oncogenic mutations.
So, wherever possible, cell lines should be selected that most closely resemble the genomic alterations of the tumor subtype being studied. No individual cell line can be representative of all cancers derived from a single tissue.
I hope this helps.
Best.
  • asked a question related to Lymphoma
Question
2 answers
I performed a molecular docking analysis of my designed structure towards anaplastic lymphoma kinase. Results showed all structures have a high binding affinity to anaplastic lymphoma kinase compared to crizotinib. Then, the structures were synthesized and confirmed using NMR, mass spec, and IR. However, the synthesized compounds have low inhibition in the A549 cell line.
Relevant answer
Answer
CCLE RNAseq should have the details of its expression.
  • asked a question related to Lymphoma
Question
1 answer
If a particular compound is able to induce STAT3 degradation in SU-DHL-1(lymphoma) and K562(lymphoblast) cell lines but not in KG-1(bone-marrow) cell line, what may be the cause of it?
How is STAT3 regularly degraded (not inhibited- the band almost completely disappears along with p-STAT3 band)?
I'm assuming if the drug acts on an upstream target of STAT3 I would still see a band for STAT3 that was already existing in the cells prior to adding the test agent.
Any insights or comments would be helpful.
Relevant answer
Answer
Dear Min!
Please You look at the article:
Signal transducer and activator of transcription 3 (STAT3) regulated by calcineurin. Calcineurin promotes the degradation of STAT3 via the ubiquitin-proteasome pathway. Inhibition of calcineurin acutely increases total levels of STAT3 as well as its activated forms, resulting in decreased levels of the tumor suppressor p53 and its proapoptotic target, Bax. In vivo and in vitro, calcineurin regulates levels of STAT3 and neurotrophin dependence. TMF/ARA 160 (TATA element modulatory factor/androgen receptor co-activator 160), the key mediator of STAT3 ubiquitination, is required for calcineurin-dependent STAT3 degradation.
Most likely, the differences between different types of cells consist in the activation of various ubiquinty ligases, which ubiquinylate proteins, including STAT3, for their subsequent degradation by the proteosome.
  • asked a question related to Lymphoma
Question
4 answers
I would like to know if it is possible to use less cells or volume or plates.
Relevant answer
Answer
  • asked a question related to Lymphoma
Question
5 answers
We have recently seen a case of large diffuse B-cell lymphoma of probable folicular origin (CD10+ partial expressión) with a well defined CD103 expression by B-cells. The references in the literature are scanty and unclear.
Relevant answer
Answer
Jordi Juncà We have just analyzed the blood of a patient with previous diagnosis of follicular lymphoma in lymph node that returned to the hospital with adenopatias and abnormal lymphocytes in blood. We performed an immunophenotyping of the blood and found 12% of medium sized cells with characteristics of follicular lymphoma: CD19 weak, CD10++, BCL-2++, CD5 neg, CD43 neg and IgM neg. However, these cells showed some positivity for post-germinal markers such as CD27, CD11c and CD39. In addition, 50% of the abnormal population showed expression of CD103 (without expression of CD25, CD123 or LAIR-1). It is the first time I see CD103 expression in a follicular lymphoma. On the other hand, I´ve already seen cases of hairy cell leukemia (very classic) with CD10 expression.
  • asked a question related to Lymphoma
Question
1 answer
Hello,
I am looking for a T-cell like cell line (like Jurkat) that expresses xCT (system xc-, SLC7A11). Could anybody please recommend any cell lines (+refs if possible) that I could use?
Kinds regards
Relevant answer
Answer
Hello Liselotte
You can use BC-1, BCP-1 and BCBL-1 cell lines. Please have a look at the research article below:
Best Wishes.
  • asked a question related to Lymphoma
Question
4 answers
Has anyone found any information and studies on Angioedema Splenic Marginal Zone Lymphoma. This is a rare lymphoma that I have been researching but I have very little information
Relevant answer
Answer
The patient will have 4 doses of the Rituximab weekly; the first dose was given over a 6 hours period by IV infusion. Prior to each dose a serial measurements of C1 esterase levels will be collected. The patient has completed the first dose and after 7 days the patients has experiences dizziness, extreme fatigue and blurred vision.
  • asked a question related to Lymphoma
Question
2 answers
Kindly provide any standard protocol or description
Relevant answer
Answer
Hi
Looks that curcumin is stable in very low temperature for example -196 oC per week.
thawing and re-freezing at -80 oC
" curcumin is stable in the extracted samples during typical residence times in the autosampler and in frozen samples and standard solutions. However, repeated thawing and re-freezing of biological samples should be avoided. "
" Long-term stability was evaluated by analyzing the plasma test samples after storage at −70 0C for up to 2 months. The results showed that both curcumin and piperine were stable in the plasma matrix "
Hope it helps
Best regards
Tomasz
  • asked a question related to Lymphoma
Question
4 answers
Hi all, this is my first-time culturing lymphoma cell line.
I obtained a frozen vial of EL4 (in the background of B6 mice) lymphoma cell line, and I am the only one culturing this line in the lab.
I checked on ATCC that it should be a suspension cell line, but I noticed that over half of the cells have become adherent on the next day, is it normal?
Relevant answer
Answer
If the culture is in suspension, it should grow in suspension and not adhere. try to contact those who gave you the culture (it is possible that this is not a pure culture, that is, there are other types of cells or damaged). try growing cells on low-adhesion plates or dishes to avoid adhesion.
  • asked a question related to Lymphoma
Question
2 answers
I need to perform antioxidant testings on Histocyctic lymphoma cells, any suggestons of another cell line, if it doesn't become available?
  • asked a question related to Lymphoma
Question
3 answers
Hello,
I recently started culturing a suspension cell line (L-428, Hogdekin lymphoma). I thawed a cryo-vial of the cell line, added pre-warmed RMPI + 10%FCS + Pen/Strep, centrifuged at 800 g, removed the media and added fresh, pre-warmed one and finally seeded them at 0.5 x 10^6/ml in 6-well tissue culture plates. During the first days they seemed quite ok, on day 3 they appeared as clumps (see picture L-428_Day3) and on day 4 I exchanged media. Since Day 7 they look more or less the same: not really smooth, but somehow eneven with a high "granularity" (see picture L-428_Day15). We changed the media to RPMI + 20% FCS + PenStrep hoping that this might do the trick and make them divide, but nothing changed. So the cell count doesn´t change. Acc. to trypanblue staining half of the cells are dead, the other half vital. Mycoplasma test (PCR) is negativ.
Has anybody run into similar troubles? Or does the picture gives anyone a clue what we might have done wrong? I would appreciate every suggestion!!
Regards,
Agnes
Relevant answer
Answer
Also make sure the P/S concentration is 1%. Some cell death is okay. Can you post a picture of your cells in day 2 in culture here. Cells may not need 20% FCS/FBS.
  • asked a question related to Lymphoma
Question
11 answers
Definition and Background of Helicobacter Pylori Infections
Helicobacter pylori (H. pylori) bacterium is involved in many diseases other than peptic ulcer disease, such as coronary artery inflammation, gastroesophageal reflux disease, skin disease, iron deficiency anemia, rheumatologic issues and lymphoid tissue lymphomas associated with mucosa. It has also been reported that there is a strong association between gastric adenocarcinoma and lymphoma and H. pylori bacterium.
Relevant answer
Answer
Please also take a look at this link.
  • asked a question related to Lymphoma
Question
1 answer
Hello,
I'm interested in taking two lymphoma cells lines and generating thymidine kinase (tk-) versions of them for the purposes of hybridoma generation. Does anyone have any experience with this?
Thank you.
Brian
Relevant answer
Answer
I am happy to help you.
  • asked a question related to Lymphoma
Question
1 answer
What is the criteria to define a lymphoma CD20 positive? What is the cut off of expression?
Relevant answer
Answer
I think it depends of several points: what type of lymphoma do you are suspecting, if the patient received treatment (Rituximab) or not, histologic features (e.g: necrosis). Sometimes flow cytometry is a more accurate to determine a real cut off. However, the paper below can help you.
  • asked a question related to Lymphoma
Question
11 answers
On the basis of lymphomas in visceral organs in both the diseases.
Relevant answer
Answer
Tumours on mucosa of bursa are considered virtually pathognomic for LL, enlargement of feather follicles ( folliculitis) only in MD, Nerve enlargement is common in MD not in LL.
  • asked a question related to Lymphoma
Question
4 answers
Hi,
Here is my question :
I'll have to do confocal microscopy on suspension cells (lymphomas), to see internalization of a membrane receptor.
I have to immobilize them before (I think I will use a poly-lysine attachment protocol, anyone as a good protocol ? )
If they stay alive, I will try to do fluorescent live-cell imaging to see the internalization.
But if they die, I will fix my cells. And I would like to fix them at different defined times after immunostaining to see the internalization.
Anyone has an idea to process ?
Thanks a lot !
Relevant answer
Answer
I think you should fix and permeate them at different defined times. but if you do so. one questions you should be noticed : cells will be more likely aggregation by improper fixed methods and lots of them will be lost.
  • asked a question related to Lymphoma
Question
3 answers
Hi,
I have generated some lymphoma cell lines and have been able to transduce them to high levels (>60%) using lentivirus expressing GFP.
I have tried titrating these cells with a vector that expresses gRNAs for a future CRISPR screen (the cells don't express CAS9 yet). I am transducing by spinnoculation and treating with puromycin at 1ug/ml (which I have titrated against the cells). When I perform the titration, I get a nice curve. My problem is that by comparing the numbers that I get from my no virus control or even cells that have been transduced but not undergone selection it would appear that I am only able to transduce ~10% of my cells (even though I know from GFP-expression that I can get much higher).
Is it possible that the puromycin treatment is causing the cells to stop proliferating for a short time (ie one or two days)? Or can anyone suggest another reason for this?
Many thanks
Nick
Relevant answer
Answer
Hi,
in fact as for any kind of selection you will see a lag pahse. In my hands Puro selected cells took at least a week or so to recover. This is due to the selection as well as the stress coming anyhow from the transduction etc. Further due to the selection it self you reduce the number of living cells and many hermatopoietic cells have issues to proliferate in low densities. So I think this is a behavior to expect
Sven
  • asked a question related to Lymphoma
Question
1 answer
We have an HIV patient with multipl ring enhancement cranial lesions and toxoplasma serology is positive. There is no response to toxoplasma treatment after 2 months, but px does not accept biopsy. How long should we go on to the treatment? (Diffusion MR does not suggest lymphoma.) Are there any trial or case-series?
Relevant answer
In HIV patients, CD4 counts <100; cotrimoxazole, alternately dapsone + pyrimethamine can be given for 6 months.
  • asked a question related to Lymphoma
Question
3 answers
hi , i'm about to try my first PDX experiments with NSG mouse strain in few weeks and i wonder there is any preference of age or sex of NSG mouse for PDX . i heard that , for breast cancer , it would be good to use female NSG mouse of 6 weeks. however ,  in my case , i'm dealing with lymphoma case so i think that it would be little bit different from that .  
it's pretty hard to find some reference about those things so it would be very appreciated if i could get some answers about it. 
Relevant answer
Answer
I am also about to do PDX on NSG mice but I am wondering if I should use only female, only male or both male and female mice for my test and control groups. Any ideas?
  • asked a question related to Lymphoma
Question
3 answers
Has anyone experience in the effects of chemotherapy in non malignant splenomegaly. We have a patient with lymphoma and a non inflitrating spleen, which go on and off with chemotherapy. My doubt is if the spleen can be transiently reduced with chemo
Relevant answer
  • asked a question related to Lymphoma
Question
6 answers
I have a patient whith PMLBCL, who progressed under DA-EPOCH-Rx6 and R-ESHAPx2 and developed CNS sec. lymphoma. Can HD Mtx HD Ara-Cx4+WBRT do anything or is it a old story for this type of lymphoma if it is resistant nothing will help. We have a plan to do auto-SCT if she responds well to H-CVAD, but is there any chance for cure? Do anyone suggest some other approach?
Relevant answer
Answer
Dr. Petkovic can you let us know about your therapeutic choices and the outcome of the above patient ?
  • asked a question related to Lymphoma
Question
7 answers
Three questions:
- Would it help to linearize the plasmid before transfecting the suspension cells using Lipofectamine 2000 or 3000?
- Does it make a difference if the DNA is added in TE buffer or H2O (to OptiMEM)?
- Could I also use RNA for Lipofectamine transfection using the exact same protocol?
Relevant answer
Answer
Electroporation is the way to go for suspension cell lines. You can get up to 80% efficiency for siRNA knockouts with electroporation tailored to specific cell lines (for example Raji: https://altogen.com/product/raji-electroporation-kit-burkitts-lymphoma-cells-ccl-86/). Other methods can work, it's just that electroporation is particularly effective for suspension cell lines.
  • asked a question related to Lymphoma
Question
4 answers
Looking to efficiently and stably transfect our EBV+ B lymphoma cell lines with firefly luciferase for consistent gene expression while maintaining cell viability.
Relevant answer
Answer
Check to see if Daudi and Raji (both are cell lines) meet your desired characteristics. Lymphoma lines are often suspension cell lines, and hence the most efficient transfection approach is to use electroporation (e.g. for Daudi: https://altogen.com/product/daudi-electroporation-kit-burkitts-lymphoma-cells/). Viral approaches should work as well, but electroporation is generally easier to perform and gets good results for suspension cell lines as well.
  • asked a question related to Lymphoma
Question
3 answers
Similar to BJAB (human) or A20 (balb/c) but a C57Bl/6 one
Relevant answer
Answer
Thank you both for these suggestions!
  • asked a question related to Lymphoma
Question
7 answers
Excuse me,
Since I have no previous experience about this kind of experiments, I would be grateful if
Anyone can recommend me something to read about culturing lymphoma cells "from human patient samples" ?
also if there are some existing protocols, this would be so helpful.
Best,
Eslam
Relevant answer
Answer
There is a now a new opportunity to support expansion of primary cells like yours. Check this:
  • asked a question related to Lymphoma
Question
6 answers
Sarcoid, lymphoma, metastasis, TB and???
Relevant answer
Answer
Please let me know if this reference/site is helpful to you:
1.  Paraaortic lymph node metastasis in patients with intra ...
www.ncbi.nlm.nih.gov › … › v.15(35); 2009 Sep 21
Sep 21, 2009 · Paraaortic lymph node metastasis in patients with intra-abdominal malignancies: CT vs PET. ... Low metabolic activity can cause a false negative PET scan ...
2. lymphoma, infection, vasculitis, and lupus
3. Early aortic endograft failure in the presence of periaortic lymphadenopathy with neurofibromatosis (von Recklinghausen's disease).Hori D et al. Gen Thorac Cardiovasc Surg. (2012)
4.  A case of IgG4-related lymphadenopathy, pericarditis, coronary artery periarteritis and luminal stenosis.Hourai R et al. Heart Vessels. (2016)  
Dennis
Dennis Mazur
  • asked a question related to Lymphoma
Question
3 answers
B cell line with cell-surface IgG expression to use as positive controls for FACS staining
Relevant answer
Answer
The human lymphoblastoid B16 cell line expresses an IgG1 which can be observed by FACS on the surface of the cell.
This immunoglobulin is  very active since it is possible to kill in vitro and in vivo B16 tumor cell by injecting an antibody directed against the human IgG1.
  • asked a question related to Lymphoma
Question
1 answer
I have recently met with a Holistic Therapist who has noted the development in upper body cancers and himself developed Non-Hodgkin's Disease Lymphoma in the mouth and neck when people have Root Canal work done at their dentist. Is there any research papers on this topic?
Relevant answer
Answer
Is there any correlation research between the development of dementia and the use of Turmeric in the diet?
  • asked a question related to Lymphoma
Question
4 answers
Dear all
I want to induce lymphoma in nude mice as an animal model.Can any one guide me before inoculation of  related cell lines into nude mice  which contamination  biological agent such as bacteria,viruses or etc must be test for evaluating the quality of cell lines?
Also which agents must be test in nude mice before inoculation?
Thank you
Relevant answer
Answer
Thanks all for their guidance.
  • asked a question related to Lymphoma
Question
2 answers
I specifically am looking to immortalize primary lymphoma cells and need a good immortalization vector. ABM has an entire immortalizing kit with an hTERT vector but I was hoping to hear some other people's review of it before investing in it. 
Relevant answer
Answer
Immortalization of Human Uterine Leiomyoma and Myometrial Cell Lines After Induction of Telomerase Activity: Molecular and Phenotypic Characteristics
  • asked a question related to Lymphoma
Question
18 answers
What are the most novel innovative treatments or novel targeted therapies in RR DLBCL (clinical trials, immuno-oncology, rituximab, stem cell transplantation, precision medicin, omics)? The best review I have found so far is attached below.
Relevant answer
Answer
The potential options are:
1. Brentuximab+ salvage chemo for CD30+ RR DLBCL
2. Revlimid or ibrutinib + salvage chemo for ABC type RRDLBCL 
3. CD19 CART based therapy 
4. Blinatumomab+ salvage chemo 
5. SGN 19 ADC + salvage chemo 
remeber none of the above choices are FDA approved options at current time. These all are in clinical trials. Thank you 
  • asked a question related to Lymphoma
Question
6 answers
Hey,
I'm analyzing the role of a signal adaptor protein found within lymphocytes, with a more general look at it's expression in various Acute Leukemias and Lymphomas. 
Does anyone have/know of a decent protocol for analyzing leukemia within the blood? 
Thanks!
Relevant answer
Answer
Hi
Which leukemia? There are several...chronic or acute; lymphocytes- T or B; myelogenic? etc...
  • asked a question related to Lymphoma
Question
2 answers
Can extra intestinal MALT lymphoma be associated be neuromyelitis optica ?
Relevant answer
Answer
YES
  • asked a question related to Lymphoma
Question
1 answer
I wonder whether anybody has been able to detect exosomes from an MHC knockout/knockdown lymphoma cells(or any kind of immune cell line) or not?
Relevant answer
  • asked a question related to Lymphoma
Question
2 answers
I need electroporated A20 lymphoma B-cells. I had used different terms, changing the voltage (260, 300 or 400V) and other parameters were constant. 
Gene Pulser Xcell Electroporation System
Pre-pulse incubation: 10 min
Electroporation temperature: ice
Electroporation buffer: Gen Pulser electroporation buffer BIO-RAD
Terms:
Exponential Decay
Voltage: 260, 300 or 400V
DNA: 30 ug/ mL (10 kb)
Capacitance: 950 uF
Resistencia: infinitive
Cuvette gap: 0.4 cm
Thank you very much.
Carla
Relevant answer
Answer
Integrating a 10kb gene by electroporation is very difficult, especially with this version of electroporator Biorad, without RF module.
It is very easy electroporate size of genes between 1 kb and 3 kb. Beyond 5kb is almost impossible.
For larger sizes of genes, it is preferable to use chemical agents such as PEI.
One note: for better electroporation efficiency, use a plasmid fresh (not frozen) to be supercoiled.
In contrast, for a chemical treatment, the more plasmid is linear (freezing and thawing) and the better the incorporation of the chemical reagent.
However, for a greater than 10 kD gene, it is more common to use a retroviral vector, such as a VLP associated with a cellular integration protein (fusion protein).
One last thing: the plasmid must be very pure (260nm / 280nm ratio = 2.0), it acts directly on the electroporation efficiency. Just as it is important: to use culture medium (serum free) to electroporate, to work at room temperature, and work quickly (no pre-incubation), for proper cell survival.
Finally 400V is the best solution, but only with all these remarks.
  • asked a question related to Lymphoma
Question
1 answer
Some papers say CVID patients tolerate chemo well enough, while others say that's not the case and they prefer rituximab as first-line treatment. Is this maybe a trend?
Relevant answer
Answer
Hi
From Wikipedia, the free encyclopedia
Rituximab is a monoclonal antibody against the protein CD20, which is primarily found on the surface of immune system B cells. Rituximab destroys B cells and is therefore used to treat diseases which are characterized by overactive, dysfunctional, or excessive numbers of B cells. This includes many lymphomas, leukemias, transplant rejection, and autoimmune disorders. Rituximab is a chimeric molecule.The drug is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.[2] It has a wholesale price of USD$159–$2,480 per vial as of 2014.[3]
Ref.
Drugs.com International brand names for rituximab Page accessed April 1, 2016
"19th WHO Model List of Essential Medicines (April 2015)" (PDF). WHO. April 2015.
Retrieved May 10, 2015."Rituximab". International Drug Price Indicator Guide. Retrieved 28 November 2015.
  • asked a question related to Lymphoma
Question
2 answers
I am looking for human leukemia or lymphoma cell line which is stably transfected with a fluorophore. If some one has it, please contact me. 
Thanks,
Rikin Shah, MD. 
Relevant answer
Answer
Thank you for suggesting these links. 
  • asked a question related to Lymphoma
Question
6 answers
I am working on optimizing Gene selection in microarray data for Cancer Classification. I am going to use SVM in (libsvm) as wrapper approach to evaluate Gene subsets using 10 K fold cross validation.
Microarray data consider as huge dimensional data ( i.e Lymphoma data set consists 4026 Genes 'features' and  62 instances and 3 class labels).
Does libsvm support multiclass classification, As in my work, Lymphoma & MLL has 3 classes?
What is the appropriate svm type and kernal type and parameters for the chosen kernal (c,gamma, etc...) in LIBSVM multi class classification  like microarray data?
Relevant answer
Answer
Try using Gridsearch algorithm in python
  • asked a question related to Lymphoma
Question
6 answers
I want to perform a time point analysis of expression of cytokines and signaling proteins in Jurkat T cells treated with a compound X. The confusion is whether these cells, being lymphomas have the characteristic of constitutive expression of inflammatory factors and thus will impact the interpretations of my results. Please let me know fellow researchers.
Relevant answer
Answer
Thank you so much Andre and Grant. I will do as both of you have suggested.
  • asked a question related to Lymphoma
Question
1 answer
Hello, 
I am planning and experiment to try one drug in lymphoma cell lines and immunoblot for protein X. I will be adding the drugs and incubate for 15 hours and blot the next day. I am confused with whether to carry out the experiment  in a T25 flask or 6 well plate. Both cases i need help in deciding the seeding density. Since I am lysing the cells the next day. So what should be the cell seeding density in both cases, optimum confluency, how much RIPA lysis buffer to use, is sonication necessary, etc. I have 2 million cells in 5 mls. I did a cell viability assay before in 96 well plate with 400,000 cells/ml. I plated the same day, added the drugs and after 48hrs, alamar blue and cell viability. 
Thanks Much for your suggestions.
Relevant answer
Answer
Hi Lax
Before you test your drug, you should really ask how many cells you need to see your target protein in the blot, and then ask how much you can see it diminished in an siRNA knockdown. These two experiments will let you know how many cells' worth of protein need to be acquired per test point and this in turn will lead you to the cell number.
If there is a question over the expression of the protein and whether the cells are in log growth, then there is no short cut to doing a growth curve versus protein signal on the blot. Do this in the wells or flask you're planning to do the test in, remembering that for multi-well plates, it's the surface area, NOT the volume, that is important when scaling.
Good luck!
G
  • asked a question related to Lymphoma
Question
5 answers
Do someone have informations / references about Myelodysplastic-like morphologic changes in trephine bone marrow biopsy, NOT due to chemotherapy or viral diseases, but associated to lymphomas or non hematologic diseases like autoimmune or chronic inflammatory processes. A PubMed search did not give useful results.
Thanks a lot for any help. Philippe 
Relevant answer
Answer
Dear colleague,
I personally have seen changes in bone marrow morphology in lymphoma patients prior to any chemo. Mostly, I saw changes in eritroblasts such as binuclear cell morphology, or mitotic figures. Sometimes I saw micromegakaryocytes or pseudo-Gaucher cells. This is rare events. The origin of this changes is unknown to me. My own speculations may be that malignant cells and their microenvironment may produce some cytokines, or substances that disturb regular hematopoiesis. Of course, this need to be evaluated through serious investigations. 
  • asked a question related to Lymphoma
Question
8 answers
I am working on T and B-lymphoma, and B16F1 melanoma cell lines. I would like to know if 2 uL is enough for 500 mL RPMI/DMEM +10% FCS+ 5.5mL antibiotic media culture system.  Is it sufficient to control the oxidation pool ?
Regards
Bikash
Relevant answer
Answer
Assuming that the stock (14.3 M) of beta-mercaptoethanol is fresh (and stored appropriately), addition of 1.9 microliter volume to 500 ml medium would give you the desired working concentration of ~55 micromolar. However, this concentration would change upon storage of the medium. Therefore, the best practical thing would be to prepare fresh medium and supplement it with beta- mercaptoethanol before adding medium to cells.
  • asked a question related to Lymphoma
Question
6 answers
We are working ALK+ ALCL. We want to separate the lymphoma T-cells from the normal T-cell population in a blood sample. One option is CD30 whose expression is high in case of lymphoma T-cells but we need something more specific which is completely absent (or atleast negligible) from one of the cells. 
Relevant answer
Hello, 
Why not PCR with primers for TCR beta chain, do electrophoresis and then collect monoclonal PCR product?
  • asked a question related to Lymphoma
Question
1 answer
Already used RNU43 and U6.
Relevant answer
Answer
Did you ever test RNU44 and RNU48 as normalizers? U6 is usually low expressed normalizer and I usually do not recommend it.
PS: di solito ci si riferisce con Housekeeping genes ad mRNA analysis, mentre normalizers per microRNAs.
  • asked a question related to Lymphoma
Question
1 answer
I have been exposing B lymphoma cells to pharmaceuticals at different concentrations for a toxicological analysis. I used a couple of assays to get an overall picture of potential effects that the pharmaceuticals could cause. My results are however (at least to what I understand) a bit contradictory. 
At 66 h of exposure I see a 50% inhibition of proliferation in one of my assays (assessment of proliferation via radiolabeled 3H-thymidine). In this assay the cells are stimulated with the mitogen LPS. 
At 24 h of exposure following a wash and further 72 h of incubation in clean medium I see a stimulation of cells from the G0/G1 phase of the cell cycle into the S phase (cell cycle assay with PI only; percentage of cells in G0/G1 decreased significantly whereas the percentage of cells in the S phase increased). Of course, having only one stain does unfortunately not give me much information on the kinetics of the cell cycle, so this argument is unfortunately a bit limited.
Viability and apoptosis are unaffected.
Of course exposure times are not identical in the two different assays and the mitogen LPS is probably also a factor influencing differences... 
Most papers I found were talking about arrest of certain phases of the cell cycle. I could not find any that were observing this kind of stimulation (if it is one). I just wonder if there is something that I'm missing that makes my observations easier to explain in the subsequent publication. :)
I would appreciate your insight!
Thank you!
  • asked a question related to Lymphoma
Question
2 answers
Other than DAL
Relevant answer
Answer
Dear Raju,
You could may be try the P388 so-called "leukemia" cell lines, which behave like a lymphoma when injected subcutaneously and not i.p. as classically done with this model.
I never performed actual lymphoma characterization of this model, in which I was interested for its aggressive behavior as an actual metastasizing process to the liver.
This model is described in the attached article. May be it could of help for you.
Best regards
Robert
  • asked a question related to Lymphoma
Question
1 answer
I hope you can provide me with some insight. :)
I exposed a B lymphoma cell line with LPS in vitro for some toxicity tests. And today I was just wondering how long the effect of a mitogen would last if it were no longer present in the medium and if I just kept on passaging the cells. 
In the body, lymphocytes get stimulated and proliferate. Most chapters or articles I read are focusing on the activation of the cells and the mounting of the adaptive immune response. But what happens after the pathogen is dealt with? Are the cells self-regulating to stop the proliferation or are other parts of the immune system taking care of that!
Thanks in advance! 
Relevant answer
Answer
The effect of the mitogen per se may not last that long, but once the cells started proliferating, the cytokine produced by them keep them going. If you do [3H]-thymidine incorporation assays using ConA stimulated T cells (so starting with a defined number), the cells keep going for up to a week, before being burned out (and undergoing apoptosis), In vitro, there is a lot of interefrences from other cytokines (IL-10, TGFb), other cells, and within stimulated cells, you will have activation of SOCS at given timepoints as well. In addition, that may nt be fully applicable for B cells, T cells need more than one signal to proliferate, otherwise they develop anergy.
Hope that helps
Dirk
  • asked a question related to Lymphoma
Question
2 answers
I'm planning to perform a WB for Notch1 and 2 proteins, I know Molt4/IG and Jurkat cell line are positive for Notch1 but there is no info about Notch2 in the literature. Anyway, we don't have any of these cell lines in our lab and I need a positive control for Notch2 in WB.
However, we have plenty of B-cell lymphoma cell lines. Does anyone know a B-cell line positive for Notch2 protein? 
Many thanks.
Relevant answer
Answer
Hi,
This may be useful to someone: LP-1 cells (multiple myeloma cell line) are highly positive for Notch2.
  • asked a question related to Lymphoma
Question
2 answers
Hello everybody,
I am trying to find a stable B-lymphoma cell line tagged with GFP. Can anyone please help me? It seems there is no cell line like this and people insert GFP by themselves. But the problem is, eventually GFP will be expressed less right? I would really appreciate any advice here.
Thanks a lot and have a good day.
Olga
Relevant answer
Answer
I think it depends on the promoter whether your GFP will be expressed less over time. A CMV promoter for example tends to get methylated in lymphoma cells and therefore lower expressed with time. I have good experiences with EF1alpha promoters in my B cell lymphoma cell lines regarding high long-term expression.
I am not aware of comercially available GFP lymphoma cells though, sorry.
  • asked a question related to Lymphoma
Question
11 answers
Rituximab is a monoclonal antibody which targets the CD20 marker. It is usually used in chemotherapy regimens against cells that express CD20, in this case B cells (as in the case of malignant non-Hodgkin's B cell lymphoma). It is also used in the treatment of certain diseases, but also in some clinical trials (as in the case of type 1 diabetes). Of course, the infusion of Rituximab (anti-CD20) would affect all CD20+ cells. My question: Does Rituximab have an effect on normal circulating lymphocytes?
Relevant answer
Answer
In fact it is not quite true that all circulating B cells are killed by Rituximab.
Approximately 10% of circulating B cells, CD19 +, CD20 low, are still active even after treatment with metotrexate.
It is these cells that are responsible for the ADA response which follows. Although the majority of B cells have disappeared from the circulating blood, we have reactivated residual B cells with HuBBB, in sufficient quantity to identify cells producing ADA, and then clone a number of them.
This is also the case with Infliximab and RoActemra which although causing a significant lymphopenia let escape B cells capable of producing ADA directed against these drugs.
  • asked a question related to Lymphoma
Question
1 answer
I would like to know the pathological significance of enhanced expression of cyclin D1 in hairy cell leukemia (HCL) cells, but not expressed in HCL-like leukemias/lymphomas (HCL-variant and splenic marginal zone lymphoma). Cyclin D1 overexpression is known to be essential in the pathogenesis of mantle cell lymphoma (MCL) and amplified in solid tumors such as malignant melanoma. Cyclin D1 overexpression in HCL cells is caused by Wnt/beta-catenin signaling pathway? Given that vemurafenib, one of the BRAF(V600E) inhibitors, is effective for the treatment for difficult-to-cure HCL and decreases the expression of both CD25 and cyclin D1, what kind of molecular machinery is underlying the regulation of cyclin D1 as well as CD25?
Relevant answer
Dear Go, 
You find the researcher here on Rg so you can contact them with your questions:
Am J Surg Pathol. 2011 Jul;35(7):1080-4. doi: 10.1097/PAS.0b013e31821ddaec.
A case of hairy cell leukemia with CCND1-IGH@ translocation: indolent non-nodal mantle cell lymphoma revisited.
Chen D, Ketterling RP, Hanson CA, Colgan JP, Zent CS, Viswanatha DS.
From the abstract: Herein, we report a patient with clinical and cytogenetic features of INNMCL with overlapping morphologic and immunophenotypic features resembling hairy cell leukemia (HCL). After failing the chemotherapeutic regimen for MCL, he received a HCL-directed therapy and achieved durable response. This case suggests that CCND1-IGH@ may rarely occur in other mature B-cell neoplasms such as HCL.
Zhonghua Bing Li Xue Za Zhi. 2009 Nov;38(11):769-73.
[Clinicopathologic study of 15 splenectomy specimens of patients with hairy cell leukemia].
[Article in Chinese]
Li ZQ1, Chen HS, Liu EB, Sun Q, Fang LH, Sun FJ, Zhang PH, Yang QY, Qiu LG.
Abstract
OBJECTIVE:
To investigate the clinicopathologic features, diagnosis, differential diagnosis and the prognosis of hairy cell leukemia (HCL).
METHODS:
Fifteen splenectomy specimens of HCL patients were investigated retrospectively using HE and immunohistochemistry in correlation with the follow-up information.
RESULTS:
(1) The male to female ratio was 2.75:1, age ranged from 36 to 68 years with a median of 47 years. The most consistent clinical feature at presentation was marked splenomegaly (100%). Other symptoms included anemia (80.0%), thrombocytopenia (60.0%), leucocytosis (53.3%), pancytopenia (20.0%) and the absence of B-symptom. (2) The proportion of hairy cells was (14.6 +/- 7.2)% in periphery blood and (47.3 +/- 23.8)% in bone marrow. The positive rate of TRAP assay was 62.5% in bone marrow; 85.7% for TPA test and the detection rate for RLC was 25% by transmission electric microscopy. The frequency of bone marrow involvement was 100%. (3) The average weight of 15 spleens was (3012 +/- 1974) g. The size of 6 spleens ranged from 16 cm x 10 cm x 5 cm to 32 cm x 20 cm x 14 cm. The white pulp of spleen showed a characteristic atrophy feature or even absent due to leukemic infiltration, predominantly involving the red pulp with some sinusoidal pattern. "Blood pool" change was an infrequent feature (3/15 cases). The nuclei of leukemic cells were round (13 cases) or bean-shaped (2 cases), nucleoli inconspicuous or disappeared. The abundant cytoplasm and prominent cell border resulted in a "fried egg" appearance. By immunohistochemistry, leukemic cells were positive for CD45RA, CD20, PAX-5, CD25, CD11c, Annexin A1 and cyclinD1, but negative for CD3 and CD43. (4) 13 cases (86.7%) have been followed-up and all are alive. Among them, 9 cases are living well more than 5 years and 7 more than 10 years.
CONCLUSIONS:
Splenomegaly is frequently the first manifestation of patients with HCL and occurred predominantly in the middle to elderly adults. Definite diagnosis of HCL requires a combined histological and immunohistochemical assessment of the splenectomy specimen, bone marrow biopsy and aspirate.
Mod Pathol. 2000 Dec;13(12):1308-14.
Immunohistochemical detection of cyclin D1 using optimized conditions is highly specific for mantle cell lymphoma and hairy cell leukemia.
Miranda RN1, Briggs RC, Kinney MC, Veno PA, Hammer RD, Cousar JB.
Hairy cell leukemia with translocation (11;20)(q13;q11) and overexpression of cyclin D1. Ishida F et al. Leuk Res. (1999)
Cyclin D1 expression in non-Hodgkin's lymphomas. Detection by immunohistochemistry.
Zukerberg LR, Yang WI, Arnold A, Harris NL
American Journal of Clinical Pathology [1995, 103(6):756-760]
  • asked a question related to Lymphoma
Question
4 answers
Most systematic reviews and case series recommend following up children with asymptomatic unilateral tonsillar enlargement as 73% of tonsillar lymphomas present with unilateral enlargement of palatine tonsils.
Relevant answer
Answer
Thanks Béatrice. 
Regards,
Muhammad
  • asked a question related to Lymphoma
Question
2 answers
I'm planning to perform a Western Blot to determine ALK expression in my cells, however I lack a proper positive control does anybody know about a proper control I could use?
Relevant answer
Answer
Hello Anke,
you could use lysates from NPM/ALK positive cell lines, such as SU-DHL-1, Karpas299 or SUP-M2.
  • asked a question related to Lymphoma
Question
3 answers
I used EG.7-OVA to make a tumor model with mouse(s.c injection). How can this kind of cells form a solid tumor even if it is a suspension cell type(lymphoma)?
Relevant answer
Answer
Most simply to cut solid tumors with forceps to very small pieces in clock glass or in special blender. and dispergs (suspend )   it in norrmal saline or Henks solution  with syringe abd ubject subutaneouksy it the flank side of miuce or rat.
  • asked a question related to Lymphoma
Question
5 answers
Treatment of relapsed angioimmunoblastic t cell lymphoma
Relevant answer
Answer
I don't have the references available offhand, but there's good evidence in myeloma, acute leukemia, and B-cell lymphomas that tumor phenotypes can change on relapse.  This may be due to genetic instability of the primary tumor, emergence of pre-existing chemo resistant  sub-clones after therapy, or competition among subclones for environmental niches in the patient. 
  • asked a question related to Lymphoma
Question
3 answers
My J774A.1 cells have high levels of constitutive IRF7 protein and minimally induced upon poly (I:C) stimulation. However, its basal IRF7 mRNA level was low and only significantly induced after poly (I:C) challenge (10ug/ml) for 12h. Does anyone explain how this happens? One article has reported that both IRF7 protein and mRNA are highly induced during monocyte to macrophage differentiation. Macrophage like J774 cell may have high IRF7 expression based on this article, but why basal IRF7 mRNA is low? IRF7 has been shown to have oncogenic properties and is upregulated in many types of leukemia and lymphomas. Therefore, IRF7 protein may highly expressed in the transformed cells, like J774 but why basal IRF7 mRNA is not reflected in the translation of its own?
Relevant answer
Answer
Hello Angeliki Pournara and Jacqueline Salotti,
I appreciate your kind suggestions.
First of all, I will plan to treat actinomycin D or cycloheximide with or without MG132 in the presence or absence of poly (I:C) to get an idea about stability of IRF7 transcript and protein.
Thank you.
Nayoung
  • asked a question related to Lymphoma
Question
3 answers
One of my nephews suffer from lymphoma, and now under Intensive Care Unit (ICU). But i am not sure yet which type of lymphoma.
Some people suggest that she should try chlorophyll in combination with medical treatment. Does anybody have experience or experiments with chlorophyll for lymphoma treatment? What do you think?
Relevant answer
Why not use the mail address I attached to get a good answer
  • asked a question related to Lymphoma
Question
2 answers
I found this results in a research about apoptosis in Lymphoma B (WSU-NHL)*, can someone help for interpretation?
Gene 1: UNC5B (= UNC5H2 or p53RDL1) : GPR Fold Change = 90,43
Gene 2: DDIT3 (= CHOP; CEBPZ; CHOP10; CHOP-10; GADD153): GPR Fold Change =  23,23
Gene 3: HRK (= DP5; HARAKIRI) : GPR Fold Change =  15,93
Gene 4: IGF1 (= IGFI; IGF-I; IGF1A): GPR Fold Change = 15,53
Gene 5: TNFRSF1A: GPR Fold Change = 11,06
.....
Gene BNIP3L (= NIX; BNIP3a): GPR Fold Change = -9,31
Gene E2F2 (= E2F-2): GPR Fold Change = -10,98
* We used: Human Apoptosis pathway 96 StellARray™ qPCR Array ; Harbor Bioscientific™).
Relevant answer
Answer
GPR is a Microsoft Excel based algorithm for Global Pattern Recognition (GPR) for PCR/qRT-PCR based techniques. If your GPR fold change for a gene is 96.45, means that the said gene is expressed at 96 fold higher level (compared to control).
Basically you are measuring deferentially expressed genes from multiple replicates ( from at least two conditions/samples).
See some of the links below:
https://www.bhbio.com/BHB/(S(pbw4hguf2capymwtwa13fam5))/GUI/SP/Gpr.aspx?AspxAutoDetectCookieSupport=1
Hope this information is helpful.
  • asked a question related to Lymphoma
Question
3 answers
I have been trying to work with them but I am unable to maintain viable cultures. I have thawed 2 vials so far and they always seem to be growing ok and when I split them .. something goes wrong. I try to maintain the cell count as per ATCC's recommendation. Tried changing the flask size and the way i keep them ( horizontally vs standing position ) but I am unable to solve the problem. 
Relevant answer
Answer
Hi, I
Thank you for your replies.
am using the RPMI1640 from Hyclone and FBS is from Gibco. I have tried to count and seed cells as per recommendation. I try to keep them at 3*10^5 cells / ml. Anyway, i have thawed a new vial and I hope it survives because from your suggestions it seems there should not be a problem. 
  • asked a question related to Lymphoma
Question
19 answers
Some tissues might be overfixed, can this affect the outcome incase you need to perfome immunohistochemistry e.g. for lymphomas.
Relevant answer
Answer
Many people will tell you that the tissues should not be formalin-fixed more than 24 or 36 hours otherwise the tissue will get too hard, or IHC staining will not work, but in my opinion this is just something that gets repeated over and over as dogma, but not actually based on fact. I have obtained good section quality and very good IHC staining in tissues that have stayed in formalin for months. As long as you use a proper heat retrieval protocol prior to IHC staining, my experience has been that many epitopes remain adequately antigenic to get proper staining. Perhaps some delicate markers, present in very low amounts, might be affected by long fixation, but this should be tested empirically, before declaring that tissues have been fixed too long to be of any use. 
  • asked a question related to Lymphoma
Question
8 answers
After excision and biopsy of extranodal (isolated) lymphomas of the upper airway: what is next? What forms of chemotherapy are given and for how long? What is the mean follow-up period?
Relevant answer
Dear Dr. Khaleque, it's hard to believe, that SOLITARY EXTRANODAL lymphoma is T-cell lymphoma/leukemia requiring ALL-like treatment. This type of lymphomas is very aggressive, so localized stage is very-very unlikely! The precise morphological examination is crucial for the treatment decision. But... If it's impossible technically (hospital haven't required morphology lab) CHOP-like chemotherapy is more 'universal' treatment.   
  • asked a question related to Lymphoma
Question
1 answer
We are planning to treat CML induced mice with aqueous solution of Imatininb.
My question is, how long and at what conditions (temperature and humidity) can we store aqueous solution of Imatininb ?
Relevant answer
Answer
Imatinib is soluable in water, ethanol and DMSO. Just prepare a stock and store @ -20°C. Create dilutions while storing @4°C.
  • asked a question related to Lymphoma
Question
8 answers
I have been trying transfections with this cell line, with hardly any success.
Bicistronic IRES vectors don't seem to work
Electroporation has been giving low efficiencies
High concentration of G418 is needed to kill them (in order to use for selection of transfectants)
Can anyone suggest vectors, antibiotics and transfection methods that have worked for this or a similar cell line?
Relevant answer
Answer
In this case I would suggest  Fugene HD, which usually works as the charm. Though you would need to do titration assay to find out what ratio (plasmid/reagent) will work the best in your system. Good luck!
  • asked a question related to Lymphoma
Question
5 answers
I wonder how I can compare Allele Frequency of some specific SNPs (as homozygous reference/alteration, heterozygous) in our lymphoma population (n=50) with a larger normal population of 1000.
How can I compare or comment on different Chi-sq Hardy-Weinberg equilibrium of these 2 populations?
Is there another way to do it as well?
Relevant answer
Answer
Thanks for suggestion and help and about demographic of Montreal you are absolutely right. Our patients are mainly European descendants and control population is checked samples of phase 1 data of 1000 gene project. I have asked bioinformatician who provided us the data for help but I was not lucky to receive help or advice. Is there any other way that can help me interpret these findings correctly? 
  • asked a question related to Lymphoma
Question
3 answers
I am trying to synchronize Raji cells which are suspended cells. But after 24 h of serum starvation they attached to the flask. Does anyone know why they are doing so and how can that be prevented?
Relevant answer
Answer
I am not an expert on Raji cells, but for sure serum starvation induces a G0/G1 block in their cell cycle. From the adhesion point of view, G1 phase is characterized by a general increase in the formation of Focal Adhesions after mitotic detachment and rounding. Thus, this could be the reason for the increased adhesion to the substrate. I think you could use trypsin to detach them (as routinely done to split epithelial cell lines), or you can starve them in no-adhesive conditions. For instance, you could use poly-Hema to coat the flask and avoid cell attachment.
  • asked a question related to Lymphoma
Question
2 answers
I am following a method using phosphate buffer, but unable to find out any degradation of the bendamustine HCl even after 6h.
Relevant answer
Dear Avinash,
By checking the references to these papers you may find something useful:
Spectrochim Acta A Mol Biomol Spectrosc. 2014 Apr 5;123:241-8. doi: 10.1016/j.saa.2013.12.063. Competitive interactions of anti-carcinogens with serum albumin: a spectroscopic study of bendamustine and dexamethasone with the aid of chemometrics.
Wang Y, Zhu R, Ni Y, Kokot S.
Investigation of bendamustine HCL in a phase 2 study in women with resistant ovarian cancer. Baker AF, Roe DJ, Laughren C, Cohen JL, Wright HM, Clouser MC, Cui H, Alberts DS, Chambers SK. Invest New Drugs. 2013 Feb;31(1):160-6.
Bendamustine pharmacokinetic profile and exposure-response relationships in patients with indolent non-Hodgkin's lymphoma. Owen JS, Melhem M, Passarell JA, D'Andrea D, Darwish M, Kahl B. Cancer Chemother Pharmacol. 2010 Nov;66(6):1039-49
Competitive interactions of anti-carcinogens with serum albumin: a spectroscopic study of bendamustine and dexamethasone with the aid of chemometrics. Wang Y, Zhu R, Ni Y, Kokot S. Spectrochim Acta A Mol Biomol Spectrosc. 2014 Apr 5;123:241-8.
Bendamustine HCL for the treatment of relapsed indolent non-Hodgkin's lymphoma. Weide R. Ther Clin Risk Manag. 2008
  • asked a question related to Lymphoma
Question
3 answers
Patient7: 67 yr old refractory to HyperCVAD awaiting donor match, looking for best bridging therapy likely intolerant to Asparaginase, attempting Flag-IDA clofarabine too expensive
Relevant answer
Answer
Ask Nicola Gökbuget, Frankfurt, Germany, goekbuget@em.uni-frankfurt.de
  • asked a question related to Lymphoma
Question
2 answers
A middle aged women while on long term mercaptopurine and Adalimumab was investigated for flare of her left sided crohn's colitis. Severe colitis on endoscopy. Stool cultures -ve.  Colonic biopsies and immuno suggestive of EBV associated lymphoma. CT - no evidence of extracolonic disease. Immunosup held. Please suggest further management ?
Relevant answer
Answer
I wonder if you have checked EBV DNA by PCR in peripheral blood, EBER, CD20 and CD30 on the colonic biopsy.
  • asked a question related to Lymphoma
Question
2 answers
I am using Origene lentiviral system. Tried spin infections, with little success.
Relevant answer
Answer
Thank you! I'll try the butyrate trick.
  • asked a question related to Lymphoma
Question
4 answers
A 10 year old boy has proptosis of the right eye.. Biopsy results reveal orbital lymphoblastic lymphoma. No brain or bone marrow involvement.
Relevant answer
Answer
You have to treat your patient as acute lymphoblastic leukemia with extranodal involvement.
  • asked a question related to Lymphoma
Question
4 answers
I would like to know how can I clinically differentiate between lymphoma and naso-pharyngeal carcinoma?
Relevant answer
Answer
Just in case someone following this question., I got an answer from specialist in oncology. Generalized lymph-adenopathy is more related to Lymphoma while nasopharyngeal carcinoma is mostly comes with nasal bleeding, headache, hearing impairment as well as vision problem.
  • asked a question related to Lymphoma
Question
8 answers
We would like to find some prospective plasma biomarkers which, if determined after radiotherapy, can be correlated with a later vascular event or atherosclerosis in patients undergoing radiotherapy of the chest (breast cancer, lymphomas), including the heart. Suggested reading:  http://www.sciencedirect.com/science/article/pii/S0735109710001452
Any input is welcomed.
Relevant answer
Answer
As regard heart biomarker and chest RT, I would suggest to give a look at
N-terminal pro-B-type natriuretic peptide plasma levels as a potential biomarker for cardiac damage after radiotherapy in patients with left-sided breast cancer.
D'Errico MP, Grimaldi L, Petruzzelli MF, Gianicolo EA, Tramacere F, Monetti A, Placella R, Pili G, Andreassi MG, Sicari R, Picano E, Portaluri M.
Int J Radiat Oncol Biol Phys. 2012 Feb 1;82(2):e239-46
  • asked a question related to Lymphoma
Question
3 answers
This new marker has been discribed for the diagnosis of marginal zone lymphoma. 
Relevant answer
Check this out:
Hematological Oncology
Special Issue: 12th International Conference on Malignant Lymphoma, Palazzo dei Congressi, Lugano, Switzerland, June 19–22, 2013
Volume 31, Issue S1, pages 151–200, June 2013