hCG exerts its specific effects on 3AO cells mainly by activating adenylate cyclase(AC)/cAMP.

• 3AO细胞LH小CG受体主要激活腺昔酸环化酶(AC)/环磷酸腺营(cAMP)系统，而不能激活肌醇磷脂(PI)信号系统。