Background: Prostate cancer is one of the most commonly diagnosed cancers in males. Tumor suppressor gene p53 plays an important role in causing cell cycle arrest and allowing apoptosis to proceed. Objective: To investigate the expression of p53 protein and its relation to apoptosis and prostate cancer traditional prognostic indicators. Methods: In this study expression of p53 was examined in p...

introduction: leukoplakia is the most common precancerous lesion of the oral mucosa and may range microscopically form benign hyperkeratosis to invasive squamous cell carcinoma. p53 is a tumor suppressor protein; whereas, proliferative cell nuclear antigen (pcna) is a proliferative marker. the aim of this study was to evaluate the immunohistochemical expressions of p53 and pcna in oral leukopla...

background: prostate cancer is one of the most commonly diagnosed cancers in males. tumor suppressor gene p53 plays an important role in causing cell cycle arrest and allowing apoptosis to proceed. objective: to investigate the expression of p53 protein and its relation to apoptosis and prostate cancer traditional prognostic indicators. methods: in this study expression of p53 was examined in p...

The tumor suppressor p53 is inactivated by mutation in about half of all tumors, making mutant a prime target for cancer therapy. Missense mutations R248W, R273H and R248Q are included the five most frequent total lead to more than 630 000 new diagnosed cases diseases world every year. These mutations, located at or near protein-DNA interface, inactivation loss direct p53-DNA interactions, caus...

background: the hbv-x (hbx) protein is believed to contribute to the development of hcc. however, the molecular mechanisms involved in hbx-mediated hepatocarcinogenesis remain obscure. in this study, the effect of hepatitis b virus x gene and its protein product hbxag on expression of p53 gene in hep g2 cell line was investigated. methods: viral dna extracted from hbv-positive serum and hbx gen...