Meanwhile, p90 rsk was exclusively expressed in oocytes, and could not be detected in granulosa cells, it maybe represented that the differences of the action pattern of MAPK cascade in oocyte and granulosa cell.

• MAPK的作用底物p90 rsk只在各期卵泡的卵母细胞中表达 ,在颗粒细胞中无着色 ,说明MAPK信号级联在卵母细胞和颗粒细胞中具有不同的作用方式。