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流体脂类物种决定了黑色素瘤转移和热带性

Shilpa Gurung¹, Timothy Budden¹, Karthik Mallela¹

¹Skin Cancer and Ageing Lab, Cancer Research UK Manchester Institute, the University of Manchester, Manchester, UK.

|April 25, 2025

概括

瘤微环境中的脂质会影响癌症的传播. 年轻脂肪细胞促进氧化酸化,减少转移,而老年脂肪细胞通过胺和IL-6信号促进肝脏热流.

科学领域:

在瘤学瘤学.
细胞生物学细胞生物学
代谢过程中的代谢.

背景情况:

瘤微环境 (TME) 影响癌症转移和热带,但具体的脂质线索仍然不清楚.
癌细胞动态地适应TME信号,影响疾病的进展.

研究的目的:

为了研究年轻和老年脂肪细胞的 stromal 脂质如何影响黑色素瘤细胞代谢,转移和热带性.
阐明将TME脂质与转移模式联系起来的分子机制.

主要方法:

对年轻和老年TME的脂质组成的分析.
评估黑色素瘤细胞对 stromal 脂质的吸收.
测量代谢途径,包括脂肪酸氧化和氧化酸化 (OXPHOS).
在体内研究以确定转移性负担和热带变化.

主要成果:

年轻脂肪细胞脂质 (酸丁胆) 调高黑色素瘤PI3K-AKT信号传递,脂肪酸氧化和OXPHOS,导致氧化应激和转移负担降低.
高OXPHOS黑色素瘤细胞优先转移到肺和大脑;抗氧化剂将热带转移到肝脏.
陈旧的TME脂质 (胺) 降低了OXPHOS,增加了转移负担,并通过S1P-STAT3-IL-6轴促进肝脏热带.
在年轻的TME中抑制OXPHOS或在老年TME中抑制IL-6受体可缓解特定年龄的转移模式.

结论:

在TME中流体脂质的可用性和组成显著地决定了黑色素瘤转移性热带性,以年龄依赖的方式.
TME脂质对黑色素瘤细胞的代谢重编程是转移部位选择的关键驱动因素.
针对代谢途径或特定的信号轴 (例如IL-6) 提供了控制转移的潜在治疗策略.

关键词:

奥克斯福斯 (OXPHOS) 是一个老化的皮肤老化皮肤.衰老的衰老衰老的衰老脂质新陈代谢脂质新陈代谢肝脏的热热症肝脏的热热症黑色素瘤是一种黑色素瘤.黑色素瘤的转移转移转移转移转移氧化应激是一种氧化应激.热带主义热带主义热带主义

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