Aberrant 5-Methylcytosine tRNA Modification Disrupts Proteostasis and Exacerbates Age-Related Osteoporosis
Zhuolin Peng, Ning Peng, Mengzhu Yuan, Feng Yan, Tie-Jian Jiang, Mingsheng Ye, Ye Xiao
This study shows that reduced tRNA m5C modification due to Nsun2 downregulation disrupts proteostasis and worsens age-related osteoporosis, with potential therapeutic benefits from molecular chaperone activators.
bioRxiv · Nov 4, 2025 · PreprintCell Biology