EXPRESSION OF HIF-1Α AND Р53 IN HUMAN GASTRIC CANCER AND ITS CLINICAL SIGNIFICANCE

Expression of HIF-1α and p53 was evaluated in human gastric cancer by immunohistochemical method. The link between expression of above mentioned proteins and clinico-pathological characteristics of tumor and disease outcome were analyzed. HIF-1α(+)/ p53(+) tumors were characterized by low grade of differentiation, high level of infiltration (pT) and presence of metastases in lymph nodes in comparison with HIF-1α(–)/p53(–) ones. р53 accumulation in tumor cells demonstrated reverse correlation with overall survival. Positive expression both of HIF-1α and p53 in tumor was correlated with unfavourable disease outcome. At the same time survival of patients with more higher expression of HIF-1α (> 45% positive cells) was more better in comparison with other HIF-1α рositive groups.