饮食限制以优化T细胞免疫力是一种古老的生存策略,在脊椎动物进化过程中得到保存
Kunming Li1, Xiumei Wei1, Kang Li1
1State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, 200241, China.
Cellular and molecular life sciences : CMLS
|July 20, 2023
概括
暂时禁食优化了脊椎动物的T细胞免疫力. 这种古老的策略,涉及适度的自和AMPK信号传递,增强免疫反应,不像长期禁食会损害免疫反应.
科学领域:
- 比較免疫學 比較免疫學
- 进化生物学是进化的生物学.
- 代谢调节 代谢调节 代谢调节
背景情况:
- 众所周知,暂时禁食可以优化哺乳动物的免疫力.
- 在脊椎动物中禁食的免疫调节效应的进化起源尚不清楚.
- 了解这是一个古老的保存特征还是最近的适应是至关重要的.
研究的目的:
- 在脊椎动物模型中研究T细胞在禁食的免疫反应中的作用.
- 为了确定饮食限制对T细胞免疫力的影响是否在脊椎动物进化过程中保持.
- 阐明连接禁食,自和T细胞免疫的分子机制.
主要方法:
- 利用鱼模型研究短暂和长期禁食对T细胞免疫力的影响.
- 分析了关键的免疫学参数,包括自,亡,炎症和T细胞激活.
- 研究了AMP激活蛋白激酶 (AMPK) 在调解禁食诱导的免疫反应中的作用.
主要成果:
- 鉴定出T细胞是对蒂拉皮亚的禁食免疫反应的主要媒介.
- 暂时的饮食限制优化了T细胞免疫力,通过促进适度的自,维持平衡,并增强T细胞功能.
- 长期禁食导致T细胞免疫力通过强烈的自,亡和异常炎症受损;AMPK被确定为中央调节者.
结论:
- 限制饮食以优化免疫力是一种古老的策略,在脊椎动物进化中得到保存.
- 暂时的禁食可以增强T细胞的恒温和功能,而长时间的禁食是有害的.
- 研究结果提供了对T细胞对代谢挑战反应的适应性演变的见解.
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