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Sökning: WFRF:(Dreilich Martin)

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  • Dreilich, Martin, 1970- (författare)
  • Predictive Factors in Esophageal Carcinoma
  • 2006
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Esophageal carcinoma is a malignancy with a poor prognosis and is the sixth cause of cancer related death worldwide. In Sweden approximately 400 new cases are diagnosed every year. The aim of this present thesis was to investigate predictive factors for esophageal carcinoma patients.126 esophageal carcinoma patients admitted to the department of Oncology at the University Hospital in Uppsala between 1990-2000 were investigated with focus on known and potential prognostic factors. Performance status and stage of the disease were the only independent prognostic factors (p-values <0.001). Angiogenic factors VEGF and bFGF were correlated to platelet and leukocyte counts and VEGF was correlated to tumor volume (p=0.04) whereas bFGF was not (p=0.08) in pre-treatment serum samples from 42 esophageal carcinoma patients. The use of the angiogenic factors as prognostic factors, prior to therapy in patients with esophageal carcinoma, according to the results from the present study, seems limited. HER-2 overexpression was seen in 17% of 97 investigated esophageal tumor samples. In squamous cell carcinoma patients, HER-2 overexpression correlated with poorer survival (p=0.035), whereas in adenocarcinoma patients, HER-2 status did not. HER-2 overexpression seems to be associated with poorer survival in esophageal carcinomas, especially in patients with squamous cell esophageal carcinoma. Telomerase activity was detected in all esophageal cell lines, with a broad range of activity levels. No correlation was found between telomerase activity levels and sensitivity to investigated cytotoxic drugs. We therefore conclude that basal telomerase activity level is not a key determinant of sensitivity to standard cytotoxic drugs in esophageal carcinoma cell lines. The virus HPV-16 was detected in 16 % of the patients; no other type HPV was detected. HPV-16 infection had no significant effect on survival (p=0.72). Our results did not show that HPV-16 increases survival or improve therapy response in patients with esophageal carcinoma.
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  • Dreilich, Martin, et al. (författare)
  • Telomerase activity is not a key determinant of sensitivity to standard cytotoxic drugs in human esophageal carcinoma cell lines
  • 2006
  • Ingår i: Anti-Cancer Drugs. - 0959-4973 .- 1473-5741. ; 17:5, s. 503-509
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of the present study was to investigate if basal telomerase activity levels may predict sensitivity to cytotoxic drugs in a panel of human esophageal carcinoma cell lines. The TRAPeze telomerase detection assay was used to investigate telomerase activity in the cell lines. Cytotoxic drug sensitivity for 20 standard cytotoxic agents was assessed using the fluorometric microculture cytotoxicity assay (FMCA). Telomerase activity was detected in all cell lines with a broad range of activity levels. Drug sensitivity also varied considerably between the cell lines. Except for a P value towards a correlation between mitoxantrone and telomerase activity (P=0.054), no statistically significant correlation was found between telomerase activity levels and sensitivity to investigated drugs, including key drugs such as cisplatin (P=0.9), 5-fluorouracil (P=0.8) and doxorubicin (P=0.54). We therefore conclude that basal telomerase activity level is not a key determinant of sensitivity to standard cytotoxic drugs in esophageal carcinoma cell lines.
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  • Ekman, Simon, et al. (författare)
  • Esophageal cancer : current and emerging therapy modalities
  • 2008
  • Ingår i: Expert Review of Anticancer Therapy. - : Informa UK Limited. - 1473-7140 .- 1744-8328. ; 8:9, s. 1433-1448
  • Forskningsöversikt (refereegranskat)abstract
    • During the last few years, there has been a gradual increase in treatment options for patients with esophageal malignancies. Several clinical studies have been performed, covering not only radiation and chemotherapy, but also the introduction of novel biological agents into the treatment arsenal. Patients with esophageal carcinoma are now offered second-line and sometimes even third-line treatments, and the number of research protocols is increasing. Despite the newly awakened interest in this malignancy, the overall 5-year survival rate has remained at approximately 10% since the 1980s. This review contains a compilation of available studies of esophageal malignancies and discusses current treatment options as well as newly developed therapies targeted at growth factor receptors.
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  • Resultat 1-7 av 7

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