Objective:To study the anticancer mechanism of 9 cis retinoic acid(9 cis RA) and provide theoretical basis of clinical therapy of lung cancer.

• 目的 :探讨 9 顺 维甲酸 ( 9 cis RA)的抗肿瘤机理 ,为临床治疗肺癌提供理论依据。