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Updated: Jan 10, 2026

Quantifying Tissue-Specific Proteostatic Decline in Caenorhabditis elegans

Quantifying Tissue-Specific Proteostatic Decline in Caenorhabditis elegans

Published on: September 7, 2021

通过在C.中保存的LMD-3蛋白质对蛋白质稳定和生殖能力的溶解体控制. 伊莱根斯 (elegans) 是一个词

Yile Zhai¹, Tiantian Wang², Jiangxue Han²

¹Institute of Medical Sciences, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033 Shandong, China.

Science advances

|November 26, 2025

概括

一种新型蛋白质LMD-3对于维持老化C. elegans的蛋白质静止和生育能力至关重要. 补充维生素B12可以通过减少细胞压力来恢复生殖能力.

科学领域:

分子生物学分子生物学
衰老研究研究衰老研究
生殖生物学生殖生物学

背景情况:

在人类和C. elegans中,女性生育能力随着年龄的增长而下降.
蛋白质稳定 (蛋白质管理) 的损害与与年龄相关的生育能力丧失有关.
这种下降背后的机制尚未完全理解.

研究的目的:

确定老化C. elegans中蛋白质稳定和生殖能力的关键调节者.
阐明与年龄相关的生育能力下降的分子机制.
探索生殖健康的潜在治疗干预措施.

主要方法:

在C. elegans中对LMD-3 (lysm域蛋白) 的遗传分析.
评估蛋白质稳定,氧化抵抗和细胞应激反应.
研究LMD-3与溶酶体蛋白和通路的相互作用.
评估维生素B12补充对生育能力和压力标志物的影响.

主要成果:

缺少LMD-3会导致氧化阻力受损和细胞应激升高.
LMD-3定位在溶解体上,并调节黄蛋白恒温.
LMD-3与维特洛根因和V型ATPase相互作用,以维持 lysosomal 功能.
维生素B12补充通过减少氧化应激来拯救lmd-3突变者的生育能力.

结论:

LMD-3是C. elegans中蛋白质稳定和生殖健康的关键调节者.
溶解体功能和蛋白质平衡是与年龄相关的生育能力的关键.
维生素B12显示出作为与年龄相关的生育能力下降的治疗策略的潜力.

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