Cancer is a genetic disease. Currently, in the field of life sciences, the researcheson the mechanisms of tumorigenesis and the development of anticancer drugs arehotspot. In this dissertation, using modern biological technologies, the relevancebetween the expressions of protein kinases C (PKCs) in breast cancer and gastriccancer BGC-823 cells and the degrees of differentiation was studied. The inhibitoryeffects of PKCαsiRNA and amoitone A on the growth of gastric cancer BGC-823cells were observed in...