通过Akkermansia spp.进行肠道微生物群调节. 补充剂增加了CAR-T细胞的功效
Laura Marcos-Kovandzic1, Michele Avagliano2, Myriam Ben Khelil3
1Institut Gustave Roussy, Villejuif, île-de-france, France.
Cancer discovery
|June 11, 2025
概括
肠道微生物组失调,特别是低Akermansia,阻碍了抗CD19CAR-T细胞治疗. 补充阿克尔曼西亚可以通过调节烯碳化合物受体通路来改善CAR-T细胞透和瘤控制.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 肠道微生物组失调与癌症治疗结果有关.
- 特定肠道细菌在CAR-T细胞疗法的有效性中的作用仍在研究中.
研究的目的:
- 研究肠道微生物组组成和功能在抗CD19CAR-T细胞治疗中的临床相关性.
- 探索Akkermansia物种,宿主新陈代谢和CAR-T细胞活动之间的机制联系.
主要方法:
- 在接受CAR-T治疗的B细胞淋巴瘤患者中分析肠道微生物群的分类学和代谢概况.
- 临床前综合性瘤模型研究涉及Akkermansia massiliensis补充剂.
- 对CAR-T细胞进行基因操纵,以评估基碳化合物受体 (Ahr) 的作用.
主要成果:
- 卡特-T疗法诱导了肠道失生症,其特点是细菌丰富度降低和阿克尔曼西亚物种,与治疗耐药性相关.
- 口服阿克尔曼西亚补充剂增强了CAR-T细胞透,改善了CD4 / CD8比率,促进了Tc1两极分化,并增加了醇代谢产物.
- 阿克尔曼西亚的治疗效益取决于烯碳化合物受体 (Ahr) 的CAR-T细胞表达,单独的醇代谢物是不够的.
结论:
- 阿克克曼西亚物种在抗CD19CAR-T细胞疗法的有效性中起着至关重要的作用.
- 针对肠道微生物群,特别是阿克尔曼西亚缺乏症,是提高CAR-T细胞治疗结果的潜在策略.
- 阿尔路径是阿克尔曼西亚驱动的CAR-T细胞功能改善的关键调解者.
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