Progesterone stimulates the development of tumors when the mutated gene is present because it accelerates cell division, but mifepristone interfered with a process needed for progesterone to spur the division of cells, the study found.

• 研究发现当变异的基因呈现时，黄体酮刺激肿瘤的生长，因为它能加速细胞分化，但米非司酮干扰需要黄体酮进行分化的细胞的形成过程。