BSG and ovarian cancer: Purified, deglycosylated CD147 (LG-CD147) does not induce matrix metalloproteinases, has no self-polymerization capability, and it has reduced in vitro adhesion capability [18]This study has proven that the HG-CD147 molecule participates in the adaption of ovarian cancer cells to their adverse environment, prevents cells from autophagic cell death, At the early stages of cell starvation, intracellular protein synthesis function is reduced, LG-CD147 synthesis is decreased, and existing LG-CD147 is converted to HG- CD147 to guarantee the stability of HG-CD147 protein expression.