The targeted inactivation of a single oncogene can induce dramatic tumor regression, suggesting that cancers are "oncogene addicted." Tumor regression following oncogene inactivation has been thought to be a consequence of restoration of normal physiological programs that induce proliferative arrest, apoptosis, differentiation, and cellular senescence. However, recent observations illustrate th...

to begin with and be bloody-minded about continuing this specific interest. You should always enjoy biology, even when some aspects of doing research are tedious or even unsuccessful. If you don’t enjoy what you are doing, then you might as well be in business and be paid well to do boring things! Beyond that it is a matter of personal style; my advice depends upon where you are on the personal...

objective: to review her-2/neu and tp53 status and their correlation with all other prognostic clinicopathologic features of infiltrative ductal breast carcinomas. materials and methods: this cross sectional study was performed on 139 patients with infiltrative ductal breast carcinoma who were diagnosed between may 2000 and march 2006 at the surgery and pathology departments of alzahra hospital...

background and objectives: breast cancer is the most common malignancy among women in the world. the aim of this study was to assess estrogen receptor (er), progesterone receptor (pr) and her-2/neu of infiltrating ductal carcinoma (idc) with tumor size, histologic grade, lymph node metastasis and age. methods: this study was carried out on 300 tissue blocks ofpatients with idc who underwent mas...

background and objective: egfr and her-2 are two members of erbb/her family of type i transmembrane growth factor receptors. cox2 is an enzyme responsible for the conversion of arachidonic acid to prostaglandins, which has a major role in angiogenesis and can modelate tumor growth. the aim of this study was to determine the level of expression of egfr, her-2 and cox2 in colorectd cancer. mater...

Abstract The Wilms' tumor 1 (WT1) gene is well known as a chameleon gene. It plays role suppressor in but also acts an oncogene other cancers. Previously, our group reported that canonical AUG starting site for the WT1 protein (augWT1) suppressor, whereas CUG (cugWT1) functions oncogene. In this study, we report oncogenic of cugWT1 AOM/DSS-induced colon cancer mouse model and urethane-induced l...

Cancer is caused by genetic changes that activate oncogenes or inactivate tumor suppressor genes. The repair or inactivation of mutant genes may be effective in the treatment of cancer. Indeed, drugs that target oncogenes can be effective in the treatment of cancer. However, it is still unclear why the inactivation of a single cancer-associated gene would ever result in the elimination of tumor...