-
[show abstract]
[hide abstract]
ABSTRACT: This study is aimed to evaluate patients with non-metastatic rectal cancer who could not be operated due to any reason and were treated with chemoradiotherapy alone or chemotherapy following chemoradiotherapy.
Patients with locally advanced non-metastatic rectal cancer, who were treated and followed-up were evaluated.
Totally 263 patients with stage II and III rectal cancer were evaluated. It was determined that 14 (5.2%) of the patients with locally advanced stages received chemoradiotherapy alone or chemotherapy following chemoradiotherapy, and they were followed-up instead of undergoing operation. The baseline assessments revealed that 8 (57.1%) patients had clinical stage II, and 6 (42.9%) patients had clinical stage III diseases. Recurrence was detected in 3 (21.4%) patients. 6 (42.9%) patients died, and death due to rectal cancer progression was detected in 2 (14.3%) patients. Median progression-free survival was 25 months (8 to 68 months), median overall survival was 35 months (12 to 68 months), overall survival rates in 1, 3 and 5 years were 92.9%, 69.8% and 52.4%, respectively.
Chemoradiotherapy alone or subsequent chemotherapy after chemoradiotherapy may be suitable for patients with non-metastatic locally advanced rectal cancer who could not be operated due to any reason.
Journal of gastrointestinal oncology 06/2013; 4(2):193-7.
-
European journal of cancer (Oxford, England: 1990) 04/2013; · 4.12 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: INTRODUCTION: The purpose of our study was to evaluate the perioperative complications, toxicity, mortality rates after cytoreductive surgery (CRS), and effects of hyperthermic intraperitoneal chemotherapy (HIPEC) used in the treatment of peritoneal surface malignancies. METHODS: Between September 2007 and March 2012, we performed 118 CRS and HIPEC with the closed abdominal technique on 115 patients with peritoneal carcinomatosis (PC). Systemic toxicities were graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 3.0 criteria and were analyzed from a prospectively collected database. RESULTS: The mean age of patients was 53.4 (range, 20-82) years; 76.3 % were female. PC was synchronous to primary cancer in 53.4 % of patients, metachronous in 41.5 %, and recurrent in 5.1 % of the patients. PCI was ≥15 in 53.4 % of the patients, and CC-0 cytoreduction was achieved in 68.5 % of the patients. Perioperative mortality was observed in 9 (7.6 %) patients. A total of 98 complications were observed in 46 (39.0 %) patients, and 4 patients underwent 6 reoperations for perioperative surgical complications. We observed toxicity in 25.4 % of the patients, nephrotoxicity in 18.6 %, and hematological toxicity in 13.6 % of patients. No significant difference was observed among age, gender, PCI and CC scores, origin of the primary tumor, and occurrence of toxicity and surgical complications. Prolonged operation times resulted in higher complication and/or toxicity rates (P < 0.01). CONCLUSIONS: Cytoreductive surgery and HIPEC is a combined treatment strategy for peritoneal surface malignancies with acceptable complication and toxicity rates.
Annals of Surgical Oncology 03/2013; · 4.17 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. KIT gene mutations have great importance for GISTs. This study evaluated the relationship between KIT mutations and GIST clinicopathologic features to define region-specific and population-specific differences. Genomic DNA was extracted from 60 GISTs, and polymerase chain reaction was performed for KIT gene exons 9, 11, 13, and 17. Polymerase chain reaction amplicons were sequenced in both directions. This study represents the first mutation data of the KIT gene in GISTs from a Turkish population and reports novel mutations. The mutation rate in exon 11 (46.7%) was remarkably higher than those of the other exons (8.3% for exon 9; 11.7% for exon 13; 1.7% for exon 17). There was an association between malignancy potential and the presence of KIT mutations (odds ratio=3.18). Cases with mutations in codons W557-K558 in exon 11 had 11-fold greater risk of malignancy when compared with those without a mutation in this exon (odds ratio=11). We report different mutations than those previously reported, which emphasizes the importance of personalized medicine that could be empowered by the use of bioinformatics tools in the diagnostic process and therapeutic approaches.
Applied immunohistochemistry & molecular morphology: AIMM / official publication of the Society for Applied Immunohistochemistry 02/2013; · 1.63 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: BACKGROUND: The combination of docetaxel, cisplatin, and 5-fluorouracil (DCF) is an effective but highly toxic regimen for the treatment of advanced gastric cancer. To improve tolerability while maintaining the efficacy of the DCF regimen, we developed a modified DCF regimen including an infusional 5-fluorouracil administration according to the de Gramont regimen. METHODS: In this study, 70 patients with advanced gastric cancer were treated. Each 2-week cycle consisted of docetaxel (60 mg/m(2)), cisplatin (50 mg/m(2)), a 5-fluorouracil (400 mg/m(2)) IV bolus, and 5-fluorouracil (2,400 mg/m(2)) IV over 46 h plus leucovorin (400 mg/m(2)) IV over 2 h. RESULTS: The median progression-free survival and overall survival were 9.0 months (95 % CI, 7.1-10.9) and 10.8 months (95 % CI, 7.4-14.2), respectively; the 1-year and 2-year overall survival rates were 46.3 and 18.4 %, respectively. Twenty-nine (41.4 %) partial responses, 19 (27.1 %) stable disease, and 22 (31.4 %) progression of disease were observed. Grade 3-4 toxicities included neutropenia (37.1 %), febrile neutropenia (15.7 %), thrombocytopenia (10.0 %), anemia (8.6 %), nausea and vomiting (10.0 %), stomatitis (5.7 %), infection (8.6 %), and diarrhea (2.9 %). CONCLUSIONS: Our results show that a de Gramont-based DCF regimen may have tolerable toxicities and be an effective and convenient palliative treatment for advanced gastric cancer.
Gastric Cancer 10/2012; · 2.42 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Background: To evaluate the factors that have an impact on the development of brain metastasis in patients with breast cancer. Materials and Methods: Among the patients who were followed-up and treated for breast cancer between January 2000 and January 2010, the ones with brain metastasis were included to the analysis. Metastatic breast cancer patients without brain metastasis, which had similar duration of follow-up and median age were included as the control group. Both group were compared for prognostic and predictive factors in terms of relationship between with or without brain metastasis and survival. Results: There were a total of 63 female patients with metastatic breast cancer who had brain metastasis and the researchers enrolled the same number of female patients as the control group. In the univariate analysis, as a significant finding, it was found that, the patients with breast cancer who had brain metastasis had vascular invasion positivity, human epidermal growth factor receptor-2 (HER-2) positivity, a rare detection of invasive lobular carcinoma component in the tumor, estrogen receptor negativity, and no bone and liver metastasis and they did not receive chemotherapy due to several reasons after the detection of metastasis in any organ. In the multivariate analysis, HER-2 positivity, no bone and liver metastasis and not receiving chemotherapy due to several reasons after the detection of metastasis in any organ were detected as significant findings. Conclusions: As the prognostic and predictive factors showing the development of brain metastasis in breast cancer patients may be identified, follow-up also including the brain is important in order to take preventive measures.
Journal of cancer research and therapeutics 10/2012; 8(4):542-8. · 0.83 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: The administration of the de Gramont regimen in combination with cisplatin and epirubicin (modified ECF) has previously been reported as a treatment for advanced gastric cancer, but here we report this regimen combination in an adjuvant setting for the first time.
Forty-eight patients with curatively resected gastric cancer were treated. Each 2-week cycle consisted of epirubicin (50 mg/m(2)), cisplatin (50 mg/m(2)), 5-fluorouracil (5-FU) IV bolus (400 mg/m(2)) and 5-FU IV (2,400 mg/m(2)) over 46 h plus leucovorin IV (400 mg/m(2)) over 2 h. Postoperative chemoradiotherapy was also administered to the patients when indicated. We retrospectively reviewed the patients who were treated with modified ECF.
The median disease-free survival (DFS) was 40.7 months and the 1-, 3- and 5-year DFS rates were 78.5, 55.7 and 44.6%, respectively. The most common grade 3-4 toxicities were hematological and gastrointestinal.
A modified ECF regimen may be an effective and convenient treatment with tolerable toxicities for the adjuvant treatment of gastric cancer. It may provide an alternative regimen to the standard ECF when a continuous ambulatory infusion pump is not feasible or not preferred by the patient.
Chemotherapy 07/2012; 58(3):233-40. · 1.82 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Background/Aims: We investigated the characteristics of locally advanced rectal cancer (LARC) patients who had received neoadjuvant chemoradiotherapy (NCRT), and who developed early metastasis during the perioperative period. Methodology: LARC who were treated and followed-up were included in this study. Patients files were reviewed retrospectively and the data on patients were recorded. Results: Totally, 182 stage II and III rectal cancer patients who received NCRT were retrospectively evaluated. Seventeen (9.3%) patients were metastatic during the perioperative period. Of them, metastases developed preoperatively in 3 (17.6%) patients after NCRT, while 14 (82.4%) developed metastases postoperatively before adjuvant chemotherapy (CT). Twelve (70.6%) patients had clinical stage T4N+ disease. The median time interval between pathological diagnosis and metastasis development was 4 (3-5) months. The median survival was 24 months. Conclusions: More effective treatment is warranted in patients with LARC with a high tumor burden.
Hepato-gastroenterology 03/2012; 59(119). · 0.66 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Hepatocyte Growth Factor (HGF) and its receptor c-Met are suggested to play an important role in progression of solid organ tumors by mediating cell motility, invasion and metastasis. Overexpression of HGF and c-Met have been shown in non-small-cell lung cancer (NSCLC). However, their role in tumor progression is not clearly defined. The aim of this study is to determine the role of HGF/c-Met pathway and its association with invasion related markers and clinicopathologic parameters in NSCLC. Immunohistochemical analysis was performed on 63 paraffin-embedded NSCLC tumor sections. The expressions of invasion related markers such as Matrix Metalloproteinases (MMPs) 2 and 9, Tissue Inhibitor Metalloproteinase (TIMP) 1 and 3 and RhoA were also examined. Co-expression of HGF/c-Met was significantly associated with lymph node invasion and TIMP-3 and RhoA overexpressions. There were positive correlation between TIMP-3 overexpression and advanced stage and negative correlation between RhoA overexpression and survival. DNA sequencing for Met mutations in both nonkinase and tyrosine kinase (TK) domain was established. A single nucleotide polymorphism (SNP) in sema domain and two SNPs in TK domain of c-Met were found. There was no statistically significant correlation between the presence of c-Met alterations and clinicopathologic parameters except shorter survival time in cases with two SNPs in TK domain. These results suggest that HGF/c-Met might exert their effects in tumor progression in association with RhoA and probably with TIMP-3. The blockade of the HGF/c-Met pathway with RhoA and/or TIMP-3 inhibitors may be an effective therapeutic target for NSCLC treatment.
Pathology & Oncology Research 07/2011; 18(2):209-18. · 1.37 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: We aimed to identify the incidence of cardiac events with capecitabine treatment.
The study included 52 patients (median age 59 years) with cancer treated at our Medical Oncology Clinic between 2009 and 2010. Cardiac events from capecitabine treatment were classified into 4 groups: cardiac symptoms, physical signs, electrocardiography (ECG) findings, and severe adverse cardiac effects.
The patients received either single-agent capecitabine or a combination chemotherapy including capecitabine. After initiation of capecitabine, 18 patients (34.6%) had new onset cardiovascular symptoms, 6 (11.5%) had new onset physical signs and 17 (32.6%) had new onset ECG findings. New onset ECG findings included prolonged corrected QT interval (n = 10, 19.2%) and prolonged PR interval (n = 3, 5.8%). Severe adverse capecitabine-induced cardiac side effects were observed in 5.8% of the patients, but none of the patients had myocardial infarction or died.
Cardiac events are not rare during capecitebine treatment and patients should be followed closely to avoid cardiac morbidity and mortality.
Chemotherapy 01/2011; 57(5):381-7. · 1.82 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: To evaluate the efficacy of modified De Gramont (mDG) and FOLFOX4 (mFOLFOX4) regimens in patients with locally advanced rectal cancer (LARC).
Patients that received adjuvant chemotherapy (CT) for the treatment of LARC (stage II and III) were retrospectively evaluated.
A total of 231 patients were examined. Median age was 58 (range, 18-83) and, of these patients, 36 (15.6%) had stage II and 195 (84.4%) had stage III disease. While the patients with stage II disease received only mDG regimen (36, 100.0%), of the patients with stage III disease, 71 (36.5%) received mDG and 124 (63.5%) received mFOLFOX4 regimen. Patients with stage III disease showed recurrences more often, but this difference was not statistically significant. Similarly, for the patients with stage III disease, there was no statistically significant relation between the adjuvant CT regimen received and the rate of recurrence. In patients with stage II disease, who received mDG, median DFS was 101 months and median OS was 106 months. For the patients with stage III disease, the patients that received mDG showed a median DFS of 78 months and a median OS of 96 months, while the patients that received mFOLFOX4 had a median DFS of 51 months and a median OS of 78 months. Although, for the patients with stage III disease, there are major differences between the two different regimens of CT in terms of DFS and OS, this difference was not statistically significant.When the results were evaluated from the perspective of toxicity, the patients that received mFOLFOX4 showed more toxicity. Neurotoxicity, which was seen in the patients that were given mFOLFOX4, was the most prominent toxicity.
mDG and mFOLFOX4 regimens are applicable regimens as adjuvant CT for the treatment of LARC.
Asian Pacific journal of cancer prevention: APJCP 01/2011; 12(12):3181-6. · 0.66 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Deterioration of anorectal function after long-course preoperative chemoradiotherapy combined with surgery for rectal cancer is poorly defined. We conducted a prospective study to evaluate the acute and long term effects of preoperative chemoradiotherapy on anorectal function and quality of life of the patients.
There were 26 patients in surgery group and 31 patients in preoperative chemoradiotherapy group. Anorectal function and quality of life of the patients were assessed by anorectal manometry, incontinence score, quality of life questionnaire.
Significant lower resting pressures in both groups and lower maximal squeeze pressures in the preoperative chemoradiotherapy group were observed after postsurgical evaluations compared with the paired pretreatment ones. In the surgery group, both the Wexner continence score, FIQL score, and the rectoscopy score were comparable before and after surgery, whereas significant worsening in the Wexner score was observed in the preoperative chemoradiotherapy group postoperatively (P < 0.01). Significant reduction in anal canal resting pressures and squeeze pressures, Wexner score, and FIQL score were observed immediately after the completion of preoperative chemoradiotherapy. Significant lower maximal squeeze pressures and worsening of the Wexner scores were observed in the preoperative chemoradiotherapy group compared to the surgery group during the postoperative assessments (P < 0.05 and P < 0.01, respectively).
Both total mesorectal excision and preoperative chemoradiotherapy may adversely affect the anorectal function. Careful selection of the patients who will benefit from neoadjuvant therapy and identifying the patients with a high risk of developing functional problems may help to improve functional outcomes for the treatment of rectal cancer.
International Journal of Colorectal Disease 09/2009; 25(2):197-204. · 2.38 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: INTRODUCTION: The aim of the present study is to investigate variations in quality of life as a function of depression and anxiety scores of colorectal cancer patients with Beck depression and State-Trait Anxiety Inventory (STAI) scoring system. DISCUSSION: One hundred ten patients with colorectal cancer undergoing chemotherapy who presented to Dokuz Eylul University Faculty of Medicine, Department of Oncology between January 2004 and April 2007 were included in this study. The series of forms including the questions regarding the demographic characteristics of the patient, Turkish version of the Beck Depression Inventory (BDI), the Turkish version of the STAI, and European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 (EORTC-QLQ-C30; version 3) were completed during face-to-face interviews by trained interviewers to determine the psychological status and quality of life of the patients. The mean Beck depression scores were 11.2 +/- 9.0 (range 0-44) and the mean STAI scores were 41.9 +/- 8.8 (range 22-71). Of the patients (Beck depression scores >or=17 points), 23.6% were determined as depressive. The EORTC-QLQ-C30 function scales and global quality of life scores of the depressive patients (BDI >or= 17) were significantly lower than that of the nondepressive patients (BDI < 17). EORTC-QLQ-C30 symptom scale scores (excluding of the diarrhea) of the depressive patients were significantly higher than that of the nondepressive patients. The patients with low STAI scores (STAI < 45) had significantly higher EORTC-QLQ-C30 function scales and global quality of life scores than the patients with high STAI scores (STAI >or= 45). EORTC-QLQ-C30 symptom scale scores of the patients with high STAI scores were significantly higher than that of the patients with low STAI scores. In the present study, we detected that anxiety and depression were strongly associated with poor quality of life in Turkish colorectal cancer patients.
Supportive Care in Cancer 06/2009; 18(4):417-21. · 2.09 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Burnout is associated with decreased job performance and commitment, predicts stress-related health problems, and low career satisfaction. The specific objectives in our study were to assess the levels of burnout and to investigate the interrelationships between demographic characteristics and burnout health-care professionals working with cancer patients in Turkey.
A questionnaire-based study was conducted in 77 physicians and 56 nurses working in an oncology clinic at the university hospital. We used quantitative survey to assess burnout levels in participants as well as sociodemographic variables. Data were collected using a Turkish version of the Maslach Burnout Inventory (MBI).
Nurses had significantly higher scores of emotional exhaustion (EE) when compared with the physicians, but no significant difference was found between two groups regarding other burnout components. Significant correlations were found in three different components of the MBI, as well as between each component, age and work experience in nurses and physicians. There were statistical significant differences for each of MBI subscales according to age groups in physicians. EE and depersonalization (D) were significantly higher in the < or =29 years of age group than in the older age groups, while personal accomplishment (PA) score was significantly lower in this age group. EE, D, PA were significantly higher in single physicians compared with married physicians.
Low level of PA was relatively high among Turkish physicians and nurses working in oncology department compared with previous studies. Younger and single physicians had higher burnout levels compared with older and married ones.
Psycho-Oncology 10/2008; 18(5):543-8. · 3.34 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: The angiotensin-converting enzyme (ACE) plays an important role not only in the regulation of vascular homeostasis but also in stimulation of hematopoiesis. We aimed to evaluate the association between insertion/deletion (I/D) polymorphism of the ACE gene and anemia at the time of the diagnosis. We enrolled 75 patients with non-small-cell lung cancer (NSCLC) and 85 age- and sex-matched healthy control participants. The I/D polymorphism of ACE was identified by using polymerase chain reaction from peripheral blood samples. Statistical analyses were performed with SPSS for Windows. The distributions of the ACE genotypes and alleles are similar in patients and in healthy participants (P=0.29 and P=0.08, respectively). In patients with NSCLC, 34 (45.3%) had anemia; of whom 3 (8.8%) had genotype II, 24 (70.6%) had genotype ID, and 7 (20.6%) had genotype DD (P=0.001). The patients with the II and ID genotypes had more frequent anemia at the time of the diagnosis (odds ratio = 6.02; P=0.001). Our findings suggest that I/D polymorphism of the ACE gene may influence the development of anemia in patients with NSCLC.
Experimental Biology and Medicine 02/2008; 233(1):32-7. · 2.64 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: The ability to predict response to chemoradiotherapy before the treatment may allow protecting poorly responding patients from the side effects of neoadjuvant treatment. Several molecular markers have been proposed to radio and chemosensitivity of rectal cancer. In this study, from pre-irradiation tumor biopsies, a novel and promising candidate factor survivin, and p53 and Ki-67 were assessed as predictors of response to preoperative chemoradiotherapy.
Expression of each marker was evaluated by immunohistochemistry on pretreatment biopsies from 37 patients having rectal cancer treated with preoperative chemoradiotherapy and curative surgery. Treatment response was assessed histopathologically in the resected surgical specimen.
There was no correlation between expression of p53, Ki-67, and survivin with response to preoperative chemoradiotherapy and prognosis.
Our data suggest that these molecular markers are not helpful to identify patients who would have benefit from neoadjuvant treatment of rectal cancer. Further investigations are necessary to select patients for preoperative treatment based on analysis of the preoperative biopsies.
International Journal of Colorectal Disease 02/2008; 23(1):37-45. · 2.38 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: The aims of the present study were to investigate the distribution of the insertion/deletion (I/D) polymorphism of the angiotensin-converting enzyme (ACE) gene in breast cancer patients and the association between ACE genotypes and clinicopathologic features, as well as their effects on prognosis. We assessed the I/D polymophism of the ACE gene by using polymerase chain reaction from peripheral blood in breast cancer and healthy age-matched women. The clinicopathologic parameters of breast cancer patients were obtained from medical records. Of the 57 patients, 31 (54.4%) had DD, 24 (42.1%) had ID, and 2 (3.5%) had II genotypes. In control subjects, 33 (63.5%) had DD, 12 (23.1%) had ID, and 7 (13.4%) had II genotypes. The ID genotype was seen more commonly in breast cancer patients (p = .03). When the combination of ID and II genotypes was used as a reference group, the DD genotype was associated with negative hormone receptor status (p = .003), tumor size (p = .054), and lymph node involvement (p = .07) but not histologic high grade and c-erb B2 overexpression. These results suggest that the DD genotype may accompany poor prognostic factors and influence the tumor course.
Journal of Investigative Medicine 08/2007; 55(5):255-61. · 1.96 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Gastric cancer in pregnancy is extremely rare and often diagnosed at advanced stages. Well-recognized pregnancy-related symptoms, such as nausea and epigastric discomfort, can be the first symptoms of gastric cancer. Thus, the diagnosis of gastric cancer in pregnancy is difficult. We herein report a case of gastric cancer in pregnancy to alert clinicians to this rare possibility.
A 22-year- old nulliparous woman was examined by a gynecologist with a complaint of low abdominal pain. An abdominal ultrasound of the patient revealed 7th week of gestation and also showed massive ascites. She was referred to a hospital for further evaluation. Her other symptoms included loss of appetite, early satiety, and postprandial fullness. Gastroscopy demonstrated a tumor originating from the cardia and invading throughout the distal corpus. The histopathological diagnosis was gastric carcinoma with signet ring cells and her pregnancy was terminated. An explorative laparotomy revealed an unresectable gastric cancer and multiple peritoneal implants. Tumoral invasion was detected in pancreas and spleen. She was admitted to the medical oncology clinic and received a palliative chemotherapy. Bilateral double-J-stent placement was performed because of obstructive uropathy. A nasogastric tube was inserted for intestinal decompression, and total parenteral nutrition was administered. An adequate pain medication was given. To date (3 months after the diagnosis) the patient has been well without any signs of progression.
Early diagnosis of gastric cancer is very important for a better outcome. The diagnosis may be delayed because mild gastrointestinal symptoms are common during pregnancy. Clinicians should take this into consideration in the differential diagnosis of persistent epigastric complaint during pregnancy. Suspicion and early upper gastrointestinal endoscopy are necessary.
The Turkish journal of gastroenterology: the official journal of Turkish Society of Gastroenterology 04/2007; 18(1):41-3. · 0.47 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: The role of survivin that regulates the biological behavior of non-small-cell lung carcinoma (NSCLC) is still controversial. We aimed to investigate survivin expression in NSCLC and to define any correlation with expressions of p53, bcl-2, bax, apoptotic index (AI), tumor cell proliferation, clinicopathologic variables, and overall survival. Tumors of 63 patients with NSCLC were examined for expressions of survivin, p53, bcl-2, bax, and Ki-67 by immunohistochemistry. AI was also evaluated. Results for each antibody were correlated with each other, and with clinicopathologic variables including age, sex, histologic subtype, TNM (T: primary tumor, N: regional lymph node metastasis, M: distant metastasis) stage, lymph node status, smoking history, and prognosis. Nuclear survivin expression was inversely correlated with p53 expression (P = 0.04, r = - 0.367), and tumor stage (P = 0.03, r = - 0.273), and positively correlated with tumor cell proliferation (P = 0.009, r = 0.329). Cytoplasmic survivin expression positively correlated with smoking history (P = 0.02, r = 0.282). Survivin/bax ratio was inversely correlated with AI (r: - 0.004). By Kaplan-Meier analysis, TNM stage (P < or = 0.001), lymph node metastasis (P = 0.04), and Ki-67 index (P < or = 0.001) were associated with survival, whereas survivin was not. In multivariate analysis, only TNM stage was an independent predictor. Although survivin and other apoptosis-related protein expressions fail to predict the clinical outcome, the present findings suggest that survivin is involved in tumor cell apoptosis and proliferation and may play a role in critical steps of cancer progression in NSCLC.
Applied immunohistochemistry & molecular morphology: AIMM / official publication of the Society for Applied Immunohistochemistry 03/2007; 15(1):31-7. · 1.63 Impact Factor
-
Saudi medical journal 03/2007; 28(2):286-7. · 0.52 Impact Factor