Alexander Baraniskin

Alexander Baraniskin
Evangelisches Krankenhaus Hamm · Departmen of Hematology and Oncology

Doctor of Medicine, MD

About

66
Publications
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1,666
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Publications

Publications (66)
Article
Full-text available
Chimeric antigen receptor (CAR)-T cells are increasingly used for the treatment of hematologic malignancies. Treatment success relies highly upon sufficient expansion of CAR-T effector cells. Accordingly, longitudinal quantification of CAR-T cells during therapy is clinically important. Techniques to quantify CAR-T cells in patient’s blood samples...
Article
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In patients with compromised immune function, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and coronavirus disease 2019 (CoVID-19) impose particular challenges. Especially in hematological malignancies, including lymphoma, the demands by this novel virus disease are further enhanced during sophisticated treatments, such as...
Article
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Patients with primary central nervous system lymphoma (PCNSL) not fulfilling inclusion criteria for clinical trials represent an underreported population. Thirty-four consecutive PCNSL patients seen at our center between 2005 and 2019 with exclusion criteria for therapeutic trials were analyzed (non-study patients) and compared with patients from t...
Article
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Therapeutic strategies for patients with locally advanced rectal cancer (LARC) who are achieving a pathological complete response (pCR) after neoadjuvant radio-chemotherapy (neoCRT) are being increasingly investigated. Recent trials challenge the current standard therapy of total mesorectal excision (TME). For some patients, the treatment strategy...
Article
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Primary central nervous system lymphoma is a rare but highly aggressive form of non-Hodgkin lymphoma that remains confined to the CNS neuroaxis. The diagnosis of PCNSL requires a high level of suspicion as clinical presentation varies depending on the involved CNS areas. Neurological symptoms and MRI findings may mimic gliomas, demyelinating lesion...
Article
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Background In patients with presumed primary CNS lymphoma (PCNSL) a systemic manifestation is found only in a small minority. Although bone marrow biopsy (BMB) is recommended for staging, its diagnostic value is unclear. Methods A retrospective analysis of 392 patients with presumed PCNSL from three university hospitals and 33 patients with second...
Article
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Background To investigate outcome and toxicity of high-dose systemic methotrexate (HDMTX)-based polychemotherapy and intracerebroventricular (ICV) chemotherapy via an Ommaya reservoir in elderly patients with primary central nervous system lymphoma (PCNSL). Methods We performed a retrospective analysis on patients ⩾65 years with first diagnosis of...
Article
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Treatment options for patients with metastatic colorectal cancer (mCRC) are limited. This particularly affects the largest group of patients with RAS mutations, who are considered ineligible for therapy with antiEGFR antibodies. In this liquid biopsy-based study, we performed the first in-depth analysis of the RAS mutational status in initially RAS...
Article
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CD19-directed CAR-T-cells (CD19-CAR) have demonstrated remarkable clinical results in patients suffering from refractory or relapsed lymphoma and acute lymphoblastic leukemia. In order to further optimize follow-up, to explain treatment failure, and to control adverse events biomarkers for monitoring of response are urgently needed. Peak expansion...
Article
In relapsed and refractory multiple myeloma (MM), adoptive cell therapies (ACT) including CAR-T-cells are under clinical investigation. However, relapse due to T-cell exhaustion or limited persistence is an obstacle. Before ACT are considered in MM, high-dose (HD) melphalan followed by autologous stem-cell transplantation (autoSCT) has been adminis...
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Background: To evaluate outcome and toxicity of High-dose methotrexate (HDMTX)-based induction therapy followed by consolidation with conventional systemic chemotherapy and facultative intraventricular therapy (modified Bonn protocol) in patients with primary CNS lymphoma (PCNSL). Methods: Between 01/2005 and 12/2013 113 patients with newly diag...
Article
Introduction: Allogeneic hematopoietic stem cell transplantation (alloHSCT) is a curative approach for multiple hematologic diseases. The success of alloHSCT is evaluated by analyzing the proportion of living donor cells in blood and bone marrow samples of the recipient (chimerism analysis). To monitor the engrafted cells, donor's individual genet...
Article
While acute myeloid leukemia (AML) is the most common type of acute leukemia in adulthood, the constellation of AML associated with central diabetes insipidus (CDI) is rare and typically occurs in patients with chromosome 3 or 7 abnormalities. This subgroup of AML is associated with a poor clinical outcome. In this report, we present a young woman...
Article
Introduction: Acute myeloid leukemia (AML) is, if untreated, a fatal hematologic neoplasia. Failure of the first induction chemotherapy is a hallmark for a poor prognosis. Early recognition of therapy failure is crucial for planning further therapies. Therefore, international guidelines recommend a bone marrow biopsy around day 14 after the beginn...
Article
Background: This systematic review and meta-analysis aims to evaluate the additive effect of bevacizumab when combined with first-line chemotherapy in metastatic colorectal cancer (mCRC). Methods: We searched EMBASE, MEDLINE, the Cochrane Library in April 2018. When possible, data were pooled to estimate summary effects. The present analysis eva...
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Primary lymphomas of the central nervous system (PCNSL) are highly aggressive tumors affecting exclusively the CNS, meninges, and eyes. PCNSL must be separated from secondary spread of systemic lymphoma to the CNS (SCNSL), which may occur at diagnosis or relapse of systemic lymphomas. At present, there are no valid methods to distinguish PCNSL from...
Article
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Purpose: Despite therapeutic improvements, all patients with nonresectable metastatic colorectal cancer (mCRC) acquire resistance to treatment probably due to the growth of mutated clones. In contrast to tissue-based studies, liquid biopsies have enabled the opportunity to reveal emerging resistance to treatment by detecting mutated clones and non...
Article
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Purpose: Outcome of patients with primary CNSL lymphoma (PCNSL) worsens with time elapsed from symptom onset. We analyzed the e ect of interventions aimed to reduce treatment delays in a single-center obser- vational series. Methods: All consecutive PCNSL patients treated in our hospital were registered in the French PCNSL network (LOC) registry. A...
Article
Background and scope: In the epoch of precision medicine and personalised oncology, which aims to deliver the right treatment to the right patient, molecular genetic biomarkers are a topic of growing interest. The aim of this expert discussion and position paper is to review the current status of various molecular tests for gastrointestinal (GI) c...
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Questions What is the presentation of lymphomatous optic nerve infiltration, and what is the outcome of this condition? Findings This case series from a cohort of 752 patients with primary central nervous system lymphomas identified 7 with lymphomatous optic nerve infiltration. All presented with rapidly progressive and severe visual impairment;...
Article
To the editor: Primary vitreoretinal lymphoma (PVRL) is often associated with primary central nervous system lymphoma (PCNSL) and is a rare high-grade diffuse large-cell B-cell lymphoma occurring within the vitreous and/or retina.[1][1][⇓][2]-[3][3] Overlapping clinical signs observed in PVRL
Article
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Background. Colorectal cancers (CRC) shed DNA into blood circulation. There is growing evidence that the analysis of circulating tumor DNA can be effectively used for monitoring of disease, to track tumor heterogeneity and to evaluate response to treatment. Case Presentation. Here, we describe two cases of patients with advanced CRC. The first case...
Article
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An accurate blood-based RAS mutation assay to determine eligibility of metastatic colorectal cancer (mCRC) patients for anti-EGFR therapy would benefit clinical practice by better informing decisions to administer treatment independent of tissue availability. The objective of this study was to determine the level of concordance between plasma and t...
Article
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Purpose: Lung cancer accounts for one in five cancer deaths. Broad screening strategies for high-risk populations are unavailable, and the validation of biomarkers for early cancer detection remains a prime interest. Therefore, we investigated the value of circulating U2 small nuclear RNA fragments (RNU2-1f) as a biomarker for diagnosis, prognosis...
Article
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Primary central nervous system lymphomas (PCNSLs) are highly aggressive tumors. Chemotherapy has improved prognosis significantly; however, early diagnosis is crucial for effective treatment. Presently, the diagnosis of PCNSL depends on histopathology of tumor biopsies.We have previously demonstrated differential expression of microRNAs in cerebros...
Article
Lymphomas of the ocular adnexa are heterogeneous and demonstrate a wide range of clinical, histological, immunohistochemical and molecular genetic characteristics. The aim of this article is to give an overview of the interdisciplinary diagnostics and individually adapted lymphoma subtype-based therapy. Depending on the lymphoma localisation, i.e....
Conference Paper
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Background: Visual impairment in Primary CNS lymphoma (PCNSL) in most of the cases is due to intraocular lymphomatous involvement, especially uveitis. Optic nerve infiltration (ONI) in PCNSL is a rare condition. We sought to describe its clinical presentation, imaging characteristics, and outcomes. Methods: Patients with ONI of PCNSL were retros...
Article
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SUMMARY CNS lymphomas represent rare and aggressive variants of extranodal non-Hodgkin's lymphomas, which may present with diverse neurological symptoms and are often diagnostically challenging. Primary CNS lymphomas develop within the CNS and characteristically involve the brain, leptomeninges, eyes and, in rare cases, spinal cord. Secondary CNS l...
Conference Paper
Introduction Dans les lymphomes cérébraux primitifs (LSNCP), des analyses combinées des microARN ont une bonne acuité diagnostique. Nous présentons les résultats de cette technique dans une collaboration franco-allemande. Objectifs Une étude monocentrique a prouvé la bonne acuité diagnostique des micro-ARN (miRNA) pour les lymphomes cérébraux primi...
Article
Up to now the diagnosis of early stage cholangiocarcinoma (CC) has remained difficult, with low sensitivities reported for current diagnostic methods. Based on recent promising findings about circulating U2 small nuclear RNA fragments (RNU2-1f) as novel blood-based biomarkers for pancreatic and colorectal adenocarcinoma, we studied the utility of R...
Article
Background: Ovarian cancer is the leading cause of death among malignancies in women. Despite advances in treatment, >50% of patients relapse. For disease monitoring, the identification of a blood-based biomarker would be of prime interest. In this regard, noncoding RNAs, such as microRNA (miRNA) or small nuclear RNA (snRNA), have been suggested a...
Article
IntroductionAntithrombotic medication has proven efficacy in the treatment and prevention of cardiovascular and cerebrovascular diseases. A major disadvantage is the increased incidence of cerebral hemorrhages such as subdural hematomas (SDH). The impact of antithrombotic therapy on the outcome of subdural hematoma is not well characterized to date...
Article
Improved non-invasive strategies for early cancer detection are urgently needed to reduce morbidity and mortality. Non-coding RNAs, such as microRNAs and small nucleolar RNAs, have been proposed as biomarkers for non-invasive cancer diagnosis. Analyzing serum derived from nude mice implanted with primary human pancreatic ductal adenocarcinoma (PDAC...
Article
Objective: MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression and serve as promising therapeutic targets in many diseases. MiRNAs are also present in biological fluids and may be of use as disease biomarkers. We evaluated whether miRNAs are differentially regulated in the CSF of patients with multiple sclerosis (MS). Method...
Article
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Diagnosis of primary lymphomas of the central nervous system (PCNSL) largely depends on histopathology of tumor biopsies. Recently, we identified miRNAs detected in the CSF of PCNSL patients as novel non-invasive biomarkers for this disease. In combined analyses of miR-21, miR-19b, and miR-92 CSF levels, it was possible to differentiate PCNSL from...
Article
Background: Ovarian Cancer is the leading cause of death among female malignancies and despite advances in treatment, more than 50% of patients will experience recurrence. For therapy-monitoring, it would be highly desirable to establish a blood-based biomarker. In this regard, microRNA (miRNA), a class of small regulatory RNA molecules, which prov...
Article
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MicroRNAs (miRNAs) are small non-coding RNAs that are involved in different biological processes by suppressing target gene expression. Altered expression of miR-30a-5p has been reported in colon carcinoma. To elucidate its potential biological role in colon cancer, miR-30a-5p was overexpressed via a lentiviral vector system in two different colon...
Article
Lymphomas can arise within the central nervous system (CNS) as primary CNS lymphoma (PCNSL) typically involving the brain and less often the leptomeninges, eyes, and spinal cord. In contrast to PCNSL, secondary CNS lymphoma (SCNSL) is considered to originate as quasi metastasis from systemic lymphoma spreading to the CNS. Both types of CNS lymphoma...
Article
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Malignant gliomas are the most common and lethal primary intracranial tumors. To date, no reliable biomarkers for the detection and risk stratification of gliomas have been identified. Recently, we demonstrated significant levels of microRNAs (miRNAs) to be present in cerebrospinal fluid (CSF) samples from patients with primary CNS lymphoma. Becaus...
Article
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The diagnosis of primary central nervous system lymphoma (PCNSL) depends on histopathology of brain biopsies, because disease markers in the cerebrospinal fluid (CSF) with sufficient diagnostic accuracy are not available yet. MicroRNAs (miRNAs) are regulatory RNA molecules that are deregulated in many disease types, including cancer. Recently, miRN...
Article
SMAD4 is a polypeptide with tumor suppressor function being investigated as a prognostic biomarker in Union Internationale Contre le Cancer stages II and III in previous studies, but its role as a prognostic marker in stage IV colorectal cancer (CRC) is still undefined. We investigated the prognostic value of reduced SMAD4 expression in patients wi...
Article
Reliable detection of leptomeningeal disease has the potential of facilitating the diagnosis of central nervous system (CNS) lymphoma and is important for therapeutic considerations. Currently, the standard diagnostic procedure for the detection of lymphoma in the cerebrospinal fluid is cytopathology. To improve the limited specificity and sensitiv...
Article
Zusammenfassung Magen- und Ösophaguskarzinome gehören weltweit zu den häufigsten tumorbedingten Todesursachen. Resektable Karzinome des oberen GI-Traktes werden in 35% in einem lokal fortgeschrittenen Stadium entdeckt. Trotz einer potenziell kurativen R0-Resektion entwickeln 50% der Patienten innerhalb von 5 Jahren ein Lokalrezidiv, Lymphknotenbefa...
Article
Diagnosis of central nervous system (CNS) lymphoma depends on histopathology of brain biopsies, because no reliable disease marker in the cerebrospinal fluid (CSF) has been identified yet. B-cell lymphomas such as CNS lymphomas are clonally restricted and express either kappa or lambda immunoglobulin light chains. The aim of this study was to find...
Article
Hypercalcemia in malignancies is a frequent complication, mostly affecting patients with solid tumors or multiple myeloma. Calcium elevation is induced by direct bone infiltration of a tumor mass or through calcium liberation from the skeleton by a humoral mediator. The latter mechanism is referred to as humoral hypercalcemia of malignancy (HHM). F...
Article
Accurate enumeration of circulating endothelial progenitor cells (CEP) is essential for their potential application as biomarkers of angiogenesis. In this study different stem cell markers (CD34, CD133) and endothelial cell antigens (KDR/VEGFR-2, CD31) in different flow cytometric protocols were assessed for the purpose of CEP quantification. Blood...
Article
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Intravascular lymphoma (IVL) is an uncommon disease characterized by atypical lymphoid cells growing inside the lumina of small vessels. The diversity of clinical presentation due to possible involvement of multiple organs often complicates its diagnosis. Here, we report on a case of IVL with rapidly progressive dementia and Coombs-negative hemolyt...
Article
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Infections with multidrug-resistant microorganisms (e.g. Pseudomonas aeruginosa and Staphylococcus aureus) cause immense complications in wound care and in the treatment of immunosuppressed patients. Like most antimicrobial peptides, histones are relatively small polycationic proteins located in each eukaryotic nucleus, which naturally supercoil DN...
Article
Problem: Die Haut ist ein Schutzschild des menschlichen Körpers gegen pathogene Mikroorganismen. Verbrennungen prädisponieren Schwerbrandverletzte zu Wundinfektionen durch unterschiedliche Mikroorganismen. Im Rahmen dieser Studie wurde untersucht, ob rekombinantes humanes Histon H1.2 als Lokaltherapie von Wundinfektionen einsetzbar ist. Methode: Es...

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