20 19 what is the difference between proto-oncogene and tumor suppressor gene in Yunnan Honghe medical and health recruitment?

Proto-oncogene refers to the oncogene existing in normal cell genome. Yunnan medical and health preparation technology widely exists in the biological world, from yeast to human cells. Their existence in normal cells is not only harmless, but also plays an important role in maintaining normal physiological functions and regulating cell growth and differentiation, which is necessary for cell growth and differentiation, tissue regeneration and wound healing. Seeing this, everyone will think, since proto-oncogenes have so many benefits to the human body, why can they cause cancer? This is because under the action of some factors, once the proto-oncogene is activated and changes in quantity or structure occur, normal cells may become cancerous. Under normal circumstances, proto-oncogenes existing in the genome are in a state of low expression or no expression, which plays an important physiological function. However, under certain conditions, such as virus infection, chemical carcinogens or radiation, proto-oncogenes can be abnormally activated and transformed into oncogenes, thus inducing cell canceration.