在非小细胞肺癌中,STAT3通过调节非小细胞肺癌中的蛋白质分泌来调节CAF诱导的奥西默蒂尼布耐药性
Xuchen Fan1,2, Sheng Wu1,2, Honglong Wu1,2
1Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, China.
Frontiers in pharmacology
|July 24, 2025
概括
瘤微环境中的与癌症相关的纤维细胞通过蛋白质分泌驱动非小细胞肺癌 (NSCLC) 中的Osimertinib耐药性. 用LL1准STAT3可以扭转这种抵抗,为NSCLC提供新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 表皮生长因子受体氨酸激酶抑制剂 (EGFR-TKIs) 在非小细胞肺癌 (NSCLC) 治疗中表现有前途.
- 对EGFR-TKIs,如奥西默提尼布的耐药性仍然是一个重要的临床挑战.
- 人们越来越认识到瘤微环境在调解药物耐药性的作用.
研究的目的:
- 阐明瘤微环境诱导NSCLC中Osimertinib耐药性的机制.
- 确定参与这种抵抗机制的关键分子参与者.
- 评估针对这些参与者克服奥西默提尼布耐药性的潜力.
主要方法:
- 在体外测试包括CCK-8,伤口愈合,Transwell和殖民地形成测试.
- 西方斑块用于蛋白质表达分析.
- 在体内异种移植研究和免疫组织化学,以评估抗瘤疗效和标表达.
- 使用t-试验/ANOVA进行统计分析.
主要成果:
- 在瘤微环境中的癌症相关纤维细胞 (CAF) 被确定为NSCLC中奥西默提尼布耐药性的诱导剂.
- 由CAF诱导的耐药性通过分泌的蛋白质进行介导.
- 发现信号转换器和转录3激活器 (STAT3) 对CAF激活和蛋白质分泌至关重要.
- 使用新型抑制剂LL1抑制CAF中的STAT3激活或抑制STAT3激活,有效地逆转了奥西默提尼布的耐药性.
结论:
- 瘤微环境,特别是CAF,在NSCLC中介于奥西默提尼布耐药性方面发挥着关键作用.
- STAT3是CAF介导抗性的关键调节者.
- 用LL1等药物向CAF中的STAT3激活,为克服NSCLC中的EGFR-TKI耐药性提供了一个有希望的策略.
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