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Updated: Jun 21, 2025
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Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
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乳酸阿波利波蛋白C-II通过促进细胞外脂解诱导免疫疗法抵抗
Jian Chen1,2, Deping Zhao2, Yupeng Wang3
1Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, P. R. China.
概括
尽管免疫疗法,高肺癌死亡率仍然存在. 这项研究揭示了乳酸酸如何通过APOC2乳化促进瘤免疫逃避和转移,这表明了改善癌症治疗的新型治疗标.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 代谢途径 代谢途径
背景情况:
- 在全球范围内,非小细胞肺癌 (NSCLC) 的死亡率很高.
- 免疫检查点抑制剂 (PD-1/PD-L1) 提高了生存率,但面临抵抗.
- 沃伯格效应将瘤代谢 (乳酸盐生产) 与通过 lysine lactylation (Kla) 的免疫功能障碍联系起来.
研究的目的:
- 澄清非希斯酶乳化在瘤免疫微环境和NSCLC免疫疗法耐药性中的作用.
- 研究细胞内乳酸盐影响瘤代谢和免疫逃逸的机制.
主要方法:
- 在NSCLC患者样本上进行全球乳糖形分析和代谢分析.
- 多omics分析与体外和体外实验验证相结合.
- 开发和测试一种抗APOC2 K70-lac抗体.
主要成果:
- 细胞内乳酸通过乳化和稳定APOC2.2,促进细胞外脂解.
- 乳酸化APOC2 (APOC2 K70-lac) 导致自由脂肪酸释放,调节性T细胞积累和免疫治疗耐药性.
- 在体内以抗体敏感的抗PD-1疗法准APOC2 K70-lac.
结论:
- 乳酸诱导的APOC2乳化是驱动NSCLC免疫逃避,转移和免疫疗法耐药性的关键机制.
- 向APOC2 K70-lac代表了结合疗法克服免疫疗法耐药性的有前途的新疗法策略.
关键词:
在APOC2中使用.脂肪溶解是指脂质分解的过程.lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation lysine-lactylation 氨酸氨酸氨酸氨酸氨酸氨酸非小细胞肺癌的肺癌.
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