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来自Ganoderma calidophilum的兰诺斯坦三类药物通过抑制PTP1B表现出强大的抗瘤活性

Chuan Chen¹, Ruixuan Xu², Chenxiao Guo²

¹College of Life Science, Hebei University, 071002, Baoding, Hebei, China; Key Laboratory of Microbial Diversity Research and Application of Hebei Province, Hebei University, 071002, Baoding, Hebei, China.

Chemico-biological interactions

|September 28, 2024

概括

甘甲基化合物,特别是甘甲基甲基 (GAA),可选择性抑制PTP1B,这是癌症治疗的关键标. 通过诱导亡和抑制细胞增殖,GAA显示出强大的抗瘤作用,为新的癌症疗法提供了潜力.

科学领域:

药理学药理学是指药理学的学科.
自然产品化学化学
癌症生物学癌症生物学

背景情况:

传统上用于治疗癌症的Ganoderma calidophilum含有生物活性拉诺斯坦三基.
精确的G. calidophilum的抗瘤机制在很大程度上仍然没有被描述.
蛋白氨酸酸酶1B (PTP1B) 与癌症进展有关.

研究的目的:

为了研究从G. calidophilum中分离出来的兰诺斯坦三烯酸的抗瘤潜力.
确定这些化合物的特定分子标和作用机制.
探索G. calidophilum衍生化合物作为抗癌剂的发展.

主要方法:

从G. calidophilum中分离和阐明兰诺斯坦三类的结构.
酶活性测定用于评估PTP1B抑制.
分子对接以预测与PTP1B.的结合相互作用.
细胞增殖,殖民地形成,迁移和亡的测试.
西方涂抹用于分析信号通路 (AKT,p38).
基因沉默 (siRNA) 和过度表达研究用于PTP1B验证.

主要成果:

四种兰诺斯坦三类药物显示出抑制PTP1B的活性.
甘甲基A (GAA) 被确定为一种选择性,非竞争性PTP1B抑制剂.
剂量依赖的GAA抑制了癌细胞的增殖,殖民地形成和迁移 (C33A,MDA-MB-231).
通过卡斯巴酶依赖和独立的途径诱导GAA的亡.
证实PTP1B是GAA的功能标;其抑制会调节GAA的细胞毒性作用.
GAA抑制了AKT的激活,并激活了p38的信号传递,促进细胞死亡.

结论:

来自G. calidophilum的兰诺斯坦三类,特别是GAA,通过选择性抑制PTP1B表现出显著的抗癌特性.
GAA的机制涉及调节AKT和p38信号通路.
兰醇三烯骨架是开发特定PTP1B抑制剂的有希望的基础.
G. calidophilum有可能发展成为用于预防和治疗癌症的功能性食品或药物.

关键词:

细胞灭亡 (apoptosis) 是一种死亡的过程.癌症癌症癌症癌症这种植物叫做Ganoderma calidophilum.这就是PTP1B.三二烯化物是三二烯化物的一种.

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