马塞利尼南准SLC7A11,通过STAT6/PPAR-γ/KLF4信号传导诱导铁和调节巨分极
Dianyu Sun1, Xingzhe Liu2, Chuwen Mao2
1Department of Gastroenterology, Yanbian University Hospital, Yanji, China.
Bioorganic chemistry
|December 28, 2025
概括
天然化合物马赛林南通过诱导铁亡来重编程肝癌中的瘤相关巨细胞 (TAMs). 这种机制针对SLC7A11,将TAM转移到抗瘤状态,并抑制肝细胞癌 (HCC) 的生长.
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:
- 具有M2表型的瘤相关巨细胞 (TAM) 促进肝细胞癌 (HCC) 的发展和免疫逃避.
- 重编程TAM为HCC提供了一个潜在的治疗策略.
研究的目的:
- 研究天然产品 macelignan (mace) 影响 HCC.中 TAM 两极化的机制.
- 为了探索铁化在马氏介导的TAM重编程中的作用.
主要方法:
- 在HCC受条件介质中进行巨细胞极化测定.
- 对铁灭菌标记物的评估 (谷氨,脂质过氧化,SLC7A11,GPX4).
- 计算建模和细胞热转移分析以确定分子相互作用.
- 在体内异种移植模型评估抗瘤疗效和毒性.
主要成果:
- 马塞利尼南通过耗尽谷和增加脂质过氧化来诱导HCC条件下的巨细胞中的铁.
- 阻断铁亡阻止了M2表型的恢复,证实了该机制.
- 马塞利尼南与SLC7A11直接相互作用,损害了STAT6/PPAR-γ/KLF4通路,并减少了CCL2的产生.
- 马塞利南将TAM重编程为抗瘤表型,抑制HCC细胞生长,迁移和上皮-介质细胞过渡.
- 在体内,马塞抑制了瘤生长和转移,没有系统性毒性.
结论:
- 马塞利尼南通过一种依赖铁灭的机制对TAM进行重新编程,以SLC7A11.11为目标.
- 这种重编程将TAM转移到抗瘤表型,抑制HCC的进展.
- 梅赛利南代表了一种有前途的天然产品,用于调节HCC的瘤免疫微环境.
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