Abstract
Intensive studies of molecular mechanisms responsible for tumor transformation results in identification of new proteins and their genes involved into tumor development. These proteins may be used as markers of tumor transformation of cells and the level of their expression may be evaluated by means of modern highly sensitive and technological methods of analysis. This review summarized literature data on currently used immunohistochemical and molecular genetic markers of gastric cancer. It highlights genetic and epigenetic changes detected in nucleic acids of tumor tissue cells in malignant and benign gastric diseases as well as in the level of DNA circulating in blood of patients with gastric cancer.
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