瘤衍生的CD109调节了与瘤相关的巨细胞的重编程,以抑制免疫反应
Tianming Cui1, Linmao Sun1, Xinyu Guo2
1Department of Hepatobiliary Surgery, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China; Anhui Provincial Key Laboratory of Hepatopancreatobiliary Surgery, Hefei, Anhui, 230001, China; Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, Anhui, 230001, China.
Journal of hepatology
|April 12, 2025
概括
瘤细胞分泌可溶性CD109,抑制了肝脏内胆固醇癌中的免疫微环境. 向CD109通过重编程巨细胞和改善T细胞反应来提高免疫疗法的有效性.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 肝脏内胆管癌 (iCCA) 显示对免疫疗法的反应不佳.
- 在iCCA中的瘤免疫微环境 (TIME) 是免疫抑制的.
- 识别新的目标对于提高iCCA治疗疗效至关重要.
研究的目的:
- 探索iCCA中免疫抑制分泌的蛋白质.
- 了解时间改造机制.
- 为了确定iCCA免疫治疗的新治疗点.
主要方法:
- 蛋白质组分析 蛋白质组分析
- 单细胞转录组学 单细胞转录组学
- 赛托夫 (CyTOF) 是一种
- 有关RNA测序的RNA测序
- 质谱测量质量谱测量
主要成果:
- 瘤衍生的可溶性CD109 (sCD109) 促进了一个免疫抑制的TIME.
- sCD109丰富了CD73+巨细胞,阻碍了T细胞的反应.
- sCD109通过FcγRI/SYK/NFκB通路对CD73进行上调,并通过结合TRIM21抑制其降解.
- 双重阻断CD109和PD-L1可以改善淋巴细胞透和抗瘤反应.
结论:
- sCD109在iCCA中充当分泌免疫检查点.
- 抑制CD109可以使iCCA对免疫治疗敏感.
- 针对sCD109为iCCA治疗提供了一个有希望的策略.
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