HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

BCL-2, p53 and HLA-DR antigen expression in surgically treated parotid cancer patients.

Abstract
Our objective was to investigate the prognostic significance of bcl-2 protein, p53 protein and HLA-DR antigen expression in a group of surgically treated parotid cancer patients. We studied bcl-2, p53 and HLA-DR immunohistochemical expression in paraffin-embedded surgically removed tissue specimens derived from 26 patients with parotid cancer and 9 patients with Warthin parotid tumors operated between 2000 and 2006 at the Hippokration Hospital of Athens. The staining results were correlated with the patients' clinicopathological characteristics and clinical outcome. Bcl-2 expression was associated with a significantly decreased survival in patients with advanced tumor stage (P = 0.04), high grade lesions (P = 0.02), or cervical node involvement (P = 0.03). Radiotherapy was associated with a significantly improved recurrence-free survival among patients with negative tumor staining for either bcl-2, or both HLA-DR and bcl-2 [HLA-DR(-)/Bcl-2(-)] (P = 0.04 for both comparisons). Classical clinicopathologic factors failed to show prognostic value both in the univariate and the multivariate analyses performed. Our results suggest that bcl-2 can be used to identify locally advanced or histologically aggressive tumors with a lower survival probability following the application of standard treatment modalities. Furthermore, bcl-2(+) patients should be considered for more aggressive adjuvant treatment protocols, since conventional radiotherapy often fails to decrease relapse rates in this setting of patients.
AuthorsMichael Genetzakis, Ilias P Gomatos, Anastasia N Georgiou, John Giotakis, Leonidas Manolopoulos, Kappaonstantina Papadimitriou, Helen Chra, Emmanuel Leandros, Christos Tsigris, Eleutherios A Ferekidis
JournalEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery (Eur Arch Otorhinolaryngol) Vol. 266 Issue 3 Pg. 417-24 (Mar 2009) ISSN: 1434-4726 [Electronic] Germany
PMID18584190 (Publication Type: Journal Article)
Chemical References
  • HLA-DR Antigens
  • Proto-Oncogene Proteins c-bcl-2
  • Tumor Suppressor Protein p53
Topics
  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • HLA-DR Antigens (metabolism)
  • Humans
  • Immunohistochemistry
  • Male
  • Middle Aged
  • Neoplasm Staging
  • Parotid Neoplasms (metabolism, mortality, surgery)
  • Preoperative Care
  • Prognosis
  • Proto-Oncogene Proteins c-bcl-2 (metabolism)
  • Retrospective Studies
  • Survival Rate
  • Tumor Suppressor Protein p53 (metabolism)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: