1355-饮食与微生物群协同作用对肥胖相关免疫治疗的影响 episode artwork

EPISODE · Jul 29, 2026 · 18 MIN

1355-饮食与微生物群协同作用对肥胖相关免疫治疗的影响

from 聊聊Sci

这项研究揭示了饮食、肠道微生物群与肥胖相关免疫治疗效果之间的复杂协同作用。研究人员通过多种小鼠模型发现,高脂等致胖饮食能促进特定益生菌(如约氏乳杆菌)的繁衍,从而增强免疫检查点抑制剂对肺癌等肿瘤的疗效。这种治疗优势并非由代谢功能障碍引起,而是源于饮食驱动产生的芳香族氨基酸代谢物(如DAT),它们能显著提升T细胞的抗肿瘤活性。通过饮食切换或粪菌移植实验,研究证实了改变饮食模式足以重塑肠道生态并逆转免疫治疗耐药性。这些发现为解释BMI与免疫治疗正相关的临床现象提供了科学依据,并为开发基于营养干预的个体化癌症治疗方案提供了新思路。References:Desharnais L, Swaby A, Messaoudene M, et al. Diet–microbiome synergy underlies obesity-associated immunotherapy efficacy[J]. Nature, 2026: 1-12.前往小宇宙评论区与主播互动

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1355-饮食与微生物群协同作用对肥胖相关免疫治疗的影响

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