迪奥斯梅丁可以通过同时抑制黑色素瘤中MAPK和STAT3通路来增强BRAF向治疗
Jiashe Chen1, Yulin Liang1, Jie Li2
1Department of Pathology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.
European journal of pharmacology
|July 31, 2025
概括
迪奥斯美丁 (DIOS) 通过向MAPK和JAK2/STAT3通路,增强了黑色素瘤中BRAF抑制剂的疗效. 这种天然化合物还通过降低PD-L1来增强抗瘤免疫力,为BRAF突变黑色素瘤提供了有前途的辅助疗法.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- BRAF抑制剂可以改善BRAF突变黑色素瘤的无进展生存期 (PFS),但面临获得的耐药性.
- 抵抗通常涉及到Janus激酶2/信号转换器和转录3 (JAK2/STAT3) 途径激活器的补偿激活.
- 同时抑制基激活蛋白激酶 (MAPK) 和JAK2 / STAT3通路提供了一种克服耐药性的策略.
研究的目的:
- 为了探索天然黄类化合物迪奥斯 (DIOS) 的抗瘤作用.
- 评估DIOS与BRAF抑制剂在黑色素瘤治疗中的协同作用潜力.
- 为了研究DIOS对MAPK,STAT3和编程细胞死亡连接体1 (PD-L1) 表达的影响.
主要方法:
- 在体外和体内对DIOS对黑色素瘤细胞的抗增殖作用的分析.
- 评估DIOS增强BRAF抑制剂活性的能力.
- 对DIOS对MAPK和STAT3信号通路的影响的评估.
- 测量PD-L1表达和T细胞透,以应对DIOS治疗.
主要成果:
- DIOS证明了对黑色素瘤细胞的强烈抗增殖作用.
- DIOS显著增强了BRAF抑制剂的抗瘤活性.
- 迪奥斯同时抑制了MAPK和STAT3通路.
- DIOS降低了PD-L1的表达,增加了T细胞透和抗瘤免疫反应.
结论:
- 迪奥斯表现出对MAPK和STAT3信号的双通道抑制活性.
- 通过降低PD-L1的调节和增强T细胞反应,DIOS具有免疫调节作用.
- 当与BRAF抑制剂相结合时,DIOS显示出作为BRAF突变黑色素瘤临床翻译的辅助疗法的潜力.
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