来自微生物群的短链脂肪酸促进抗瘤天然杀手细胞活动
Marina Pérez1, Berta Buey2, Pilar Corral1
1Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain.
Journal of clinical medicine
|July 13, 2024
概括
短链脂肪酸 (SCFA) 通过增强细胞毒性和减少IL-10来增强自然杀手 (NK) 细胞的抗瘤活性. 这表明SCFA在癌症免疫治疗中具有显著的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物组研究 微生物组研究
- 癌症生物学 癌症生物学
背景情况:
- 肠道微生物群通过代谢物,如短链脂肪酸 (SCFA) 来影响宿主免疫力和恒常性.
- 新出现的证据将肠道微生物组合和代谢物与癌症联系起来,但它们对抗瘤反应的影响还未得到充分研究.
- 自然杀手 (NK) 细胞对于抗瘤免疫至关重要,直接消除瘤细胞.
研究的目的:
- 研究SCFA对NK细胞抗瘤活性的影响.
- 探索SCFA作为NK细胞介导癌症防御调节者的潜力.
主要方法:
- 利用NK-92细胞系来评估SCFA对NK细胞功能的影响.
- 测量NK细胞对癌细胞的细胞毒性.
- 分析了细胞因子和细胞外囊泡的分泌.
主要成果:
- 此外,SCFA显著提高了NK细胞的抗瘤活性.
- 这种SCFA诱导NK细胞细胞外囊的释放.
- 此外,SCFAs降低了抗炎细胞因子IL-10的分泌,并增加了NK细胞对多发性髓瘤细胞的细胞毒性.
结论:
- 在增强NK细胞介导的抗瘤防御方面,SCFA具有巨大的潜力.
- 调节SCFA的产生可能是癌症免疫疗法的新策略.
- 这项研究为微生物代谢物和细胞抗瘤免疫之间的相互作用提供了新的见解.
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