仅CXCL12就足以将正常纤维细胞重新编程成与癌症相关的纤维细胞
Zelong Ma1, Diping Yu2, Siqi Tan1
1Laboratory of Molecular Genetics of Aging & Tumor, Medical School, Kunming University of Science and Technology, Chenggong Campus, 727 South Jingming Road, Kunming, Yunnan, 650500, China.
Cell death discovery
|April 8, 2025
概括
癌症相关纤维细胞 (CAF) 在肺癌中通过CXCL12/STAT3通路驱动正常的纤维细胞转化. 抑制这个轴阻碍瘤生长和转移,提供了一个潜在的治疗策略.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 癌症研究 癌症研究
背景情况:
- 癌症相关纤维细胞 (CAF) 是瘤微环境 (TME) 和癌症进展的关键调节者.
- 驱动CAF激活的机制及其在正常纤维细胞重编程中的作用仍然不完全理解.
- 了解CAF激活对于开发向癌症疗法至关重要.
研究的目的:
- 研究CAF如何诱导正常纤维细胞 (NFs) 在肺癌中成为CAF.
- 阐明p53突变和CXCL12/STAT3信号轴在这种转换过程中的作用.
- 评估针对肺癌中CXCL12/STAT3轴的治疗潜力.
主要方法:
- 在体外共同培养系统来评估纤维细胞重编程.
- 对CAF标记物 (α-SMA,维丁) 和纤维细胞增殖/迁移的分析.
- 在体内异种移植模型评估瘤生长和转移.
- 研究CXCL12/STAT3信号通路及其抑制.
主要成果:
- CAF诱导NF获得CAF属性 (称为CEF),增强增殖,迁移和肺癌细胞促进.
- 在体内,CEF加速了瘤生长,并诱导了肺转移.
- 鉴定出CXCL12是NF转化为CEF的关键因素,与CAF标记物相关.
- 通过STAT3途径,CXCL12将NF重编程为CAF;抑制这个轴减少了转换,并阻碍了肺癌的进展.
结论:
- 在肺癌中,CAFs通过CXCL12/STAT3轴促进NFs转化为CAF样细胞.
- 这种重编程增强了瘤的生长和转移.
- 针对CXCL12/STAT3轴为肺癌和其他依赖CXCL12的恶性瘤提供了一个有希望的治疗策略.
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