نتایج جستجو برای: 2 expression
تعداد نتایج: 3197955 فیلتر نتایج به سال:
Bcl-2, a well-known anti-apoptotic gene, promotes cell viability without cell proliferation. Expression of the bcl-2 oncogene is reported in certain low grade neoplasms including Basal Cell Carcinomas(BCCs). Bcl-2 expression in BCCs is contradictory, with 67-100% immunopositivity being reported. The purpose of this study was to evaluate bcl-2 expression in the indolent variants of B...
Introduction: cyclooxygenase-2 (COX-2) is involved in pathogenesis of various tumors and possibly malignant skin tumors including malignant melanoma; however, there is not enough information about COX-2 expression in benign melanocytic lesions. In the present study we compared the expression levels of COX-2 in malignant melanoma and benign melanocytic lesions. Method: In this analytical study, ...
gastric adenocarcinoma is the second leading cause of death due to cancer in the world and in advanced stages the prognosis is poor with current therapies. over-expression of her-2/neu has been seen in several cancers such as gastric cancer and its expression is associated with poor prognosis. the aim of this study is to evaluate the over-expression of her-2/neu in gastric biopsy samples of pat...
conclusions: lymphatic metastasis in patients with oral and maxillofacial scc is closely related to the positive expression of vegf, mmp-9 and timp-2. mmp-9 and timp-2 can affect the progression of cancer, which is valuable for studies on oral and maxillofacial scc genes. objectives: to explore the association between expression of vegf, mmp-9 and timp-2 in oral and maxillofacial scc and clinic...
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...
background gastric dysplasia (gd) is a precursor lesion of gastric adenoâcarcinoma. intestinal type gastric carcinoma commonly shows microsatellite instability (msi) and the diffuse type is associâated with down regulation of e-cadherin. her-2/neu is over-expressed in some cases of gastric cancer. in this study, msi and expression rates of her-2/neu and e-cadherin in gd were evaluated. me t h...
Background: Meningioma is one of the most common tumors of the central nervous system. It was shown that meningioma had up-regulated expression of Matrix Metalloproteinases (MMPs) that involved in cell growth, angiogenesis and metastasis. Objectives: The aim of the study was the assessment of serum MMP-2 and -9 levels in patients with different grades of meningioma. Materials & Me...
Gastric adenocarcinoma is the second leading cause of death due to cancer in the world and in advanced stages the prognosis is poor with current therapies. Over-expression of HER-2/neu has been seen in several cancers such as gastric cancer and its expression is associated with poor prognosis. The aim of this study is to evaluate the over-expression of HER-2/neu in gastric biopsy samples of pat...
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