https://x.com/EricTopol/status/1948757714705830399?s=19
Does anyone have PDF?
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Paper:
Comprehensive human proteome profiles across a 50-year lifespan reveal aging trajectories and signatures
Highlights
• A proteomic blueprint of human organs across 50-year aging stages
• Transcriptome-proteome decoupling and proteostasis failure mark aged tissues
• Human organ proteomic clocks reveal aging inflection and asynchrony
• Circulating senoproteins contribute to vascular and systemic aging
Summary
Proteins are the cornerstone of life. However, the proteomic blueprint of aging across human tissues remains uncharted. Here, we present a comprehensive proteomic and histological analysis of 516 samples from 13 human tissues spanning five decades. This dynamic atlas reveals widespread transcriptome-proteome decoupling and proteostasis decline, characterized by amyloid accumulation. Based on aging-associated protein changes, we developed tissue-specific proteomic age clocks and characterized organ-level aging trajectories. Temporal analysis revealed an aging inflection around age 50, with blood vessels being a tissue that ages early and is markedly susceptible to aging. We further defined a plasma proteomic signature of aging that matches its tissue origins and identified candidate senoproteins, including GAS6, driving vascular and systemic aging. Together, our findings lay the groundwork for a systems-level understanding of human aging through the lens of proteins.
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