1052-甲羟戊酸途径对滤泡辅助性T细胞生成的代谢调控 episode artwork

EPISODE · May 30, 2026 · 16 MIN

1052-甲羟戊酸途径对滤泡辅助性T细胞生成的代谢调控

from 聊聊Sci

这项研究揭示了甲羟戊酸(MVA)代谢途径在调节T滤泡辅助(Tfh)细胞分化及自身免疫性疾病中的关键作用。研究发现,该代谢路径产生的香叶基香叶基焦磷酸(GGPP)是维持Tfh细胞功能的必需物质,它通过促进RAB35蛋白的异戊烯化,确保趋化因子受体CXCR5在细胞表面的持续循环与表达。T细胞受体(TCR)信号会进一步增强这一代谢轴,导致其在系统性红斑狼疮(SLE)等自身免疫疾病中过度活跃。通过使用匹伐他汀等药物阻断该通路,可以有效抑制致病性Tfh细胞的生成,从而缓解实验模型中的自身免疫损伤。这一发现将细胞代谢与蛋白质胞内运输联系起来,为治疗相关免疫疾病提供了新的代谢靶点。References:Wang L, Jiang J, Yin H, et al. Modulation of the mevalonate pathway by TCR engagement regulates T follicular helper cell generation in homeostasis and autoimmunity[J]. Immunity, 2026.前往小宇宙评论区与主播互动

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1052-甲羟戊酸途径对滤泡辅助性T细胞生成的代谢调控

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