ArticleCell reports. Medicine2026
Preserved mitochondrial ribosomal protein gene expression marks a youthful transcriptional state in Chinese nonagenarians and centenarians.
Article in Cell reports. Medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
A youthful molecular profile reflects attenuated aging and preserved health in advanced age. Long-lived individuals (LLIs) show youthful patterns in DNA methylation and gut microbiota, yet their transcriptional trajectories remain undercharacterized. We analyze transcriptomes from 811 LLIs and 940 younger controls (YCs) to map transcriptional aging trajectories. Clocks trained on YCs reveal that LLIs possess markedly younger transcriptional ages than expected. We identify gene clusters deviating from YC-derived aging trajectories in LLIs, notably eight mitochondrial ribosomal protein genes (mRPGs) resisting typical age-related expression decline. An elevated 8-mRPG expression score correlates with lower aging levels inferred from established aging- and senescence-related gene gets. Samples with higher 8-mRPG scores exhibit increased expression of mitochondrial-function-related genes, including those in aerobic respiration and respiratory electron transport. Together, these findings indicate that the sustained expression of specific mRPGs in LLIs is a signature of attenuated transcriptomic aging that may reflect preserved mitochondrial function.
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