胰腺CAF衍生自毒素驱动自克林CTGF表达以调节原原始信号传递
Fanny Volat1, Ragini Medhi1, Lauren Z Maggs1,2,3
1Cancer Research Horizons, Cambridge, United Kingdom.
Molecular cancer therapeutics
|November 21, 2024
概括
与癌症相关的纤维细胞通过自毒素 (ATX) 信号驱动胰腺癌的生长. 抑制ATX可以减少CTGF等促进瘤的因素,为胰腺管腺癌提供了一种新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 瘤微环境研究 研究
背景情况:
- 自毒素 (ATX) 是胰腺管道腺癌 (PDAC) 的点.
- 在PDAC的瘤微环境 (TME) 中ATX/lysophosphatidic acid (LPA) 轴的作用尚未完全理解.
- 癌症相关纤维细胞 (CAF) 是PDAC TME的关键组成部分.
研究的目的:
- 调查PDAC TME中的ATX的来源和功能.
- 在CAF中识别ATX信号的下游媒介.
- 探索ATX在CAF介导的原始源信号传递中的双重作用 (酶和伴侣).
主要方法:
- 分析患者样本和细胞系数据集,以确定ENPP2 (ATX) 表达.
- 在PDAC CAF衍生的细胞系中使用ATX抑制剂IOA-289 (0082T).
- 在CAF中ATX的遗传和药理抑制,以评估CTGF分泌和LPA信号.
主要成果:
- 在PDAC中大多数ENPP2表达源自TME,特别是CAF.
- 从CAF衍生出的ATX通过自身和副机制促进原始源信号传递.
- 在CAF中抑制ATX通过LPA受体信号传递减少了结合组织生长因子 (CTGF) 的分泌.
- 在ATX抑制后,细胞外LPA水平增加,这表明ATX的陪伴功能发挥了作用.
结论:
- 主要来自CAF的ATX促进了一个原始PDAC微环境.
- ATX通过其酶 (LPA 生产) 和伴侣功能影响CAF分泌.
- 针对ATX提供了一个潜在的治疗策略,通过破坏CAF介导的前瘤源信号来治疗PDAC.
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