1244-Loss of Transcriptional Coordination in Human Aging

This article investigates how gene expression coordination changes as humans age, revealing that cellular processes often lose their synchronized regulatory patterns over time. By developing a predictive network model trained on cancer cell line data, the researchers analyzed transcriptomic shifts across thirty human tissues to distinguish between simple expression noise and structured regulatory decline. Their findings indicate that while many gene relationships remain stable, weakening connections primarily occur between distinct cellular functions, whereas strengthening relationships often appear within specific tissue-specific pathways. Notable disruptions were observed in mitochondrial respiration and cell cycle regulation, with some tissues like blood showing increased coordination in coagulation processes as an adaptive response. Ultimately, the study suggests that aging is not a universal decline in transcriptional control but a complex reorganization of how different biological modules communicate with one another.References:Leote A C, Lopes F, Beyer A. Loss of coordination between basic cellular processes in human aging[J]. Nature Aging, 2024, 4(10): 1432-1445.前往小宇宙评论区与主播互动