2022-08-22 来源 : VIP说
前言
抗肿瘤特性
凋亡活性
触发肿瘤细胞凋亡已经被作为一种治疗癌症的有效方法,淫羊藿可诱导肿瘤细胞凋亡,淫羊藿70%乙醇提取物可激活结肠癌细胞线粒体依赖性凋亡通路[13]。这为进一步研究从该草药分离的生物活性成分诱导凋亡的活性提供了依据。通常,Icaritin及其他衍生物的凋亡作用与细胞凋亡的内在途径激活有关。Icaritin的治疗可导致多种癌细胞(肝癌[14, 15]、AML[16]、淋巴瘤[17, 18]、子宫内膜癌[19]、CML[20]、)中Bax/Bcl2比值的增加、细胞色素c的释放、多聚(ADP-核糖)聚合酶的裂解和半胱天冬酶的活化,这些可被各种信号通路调控[14],如表1所示。
表1. Icaritin的凋亡活性
图1. Icaritin通过抑制JAK/STAT3 signaling、MAPK/ERK signaling、EGFR signaling等多种机制发挥凋亡作用。
细胞周期调控
图2. Icaritin对细胞周期的调节作用
表2. Icaritin对细胞周期的调控
血管生成抑制
表3. Icaritin的抗血管生成作用
侵袭和转移抑制
表4. Icaritin的抗肿瘤转移作用
图4. Icaritin的抗肿瘤转移作用
抑制激素依赖型肿瘤
抑制耐药肿瘤细胞
免疫调节
总 结
图5. Icaritin的抗肿瘤完整机制
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