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Updated: Jun 14, 2026

Isolation of Intermediate Filament Proteins from Multiple Mouse Tissues to Study Aging-associated Post-translational Modifications
Published on: May 18, 2017
Protein restriction reprograms the multi-organ proteomic landscape of mouse aging
Tian Lu1, Yuting Xie1, Yingrui Wang1
1Westlake Center for Intelligent Proteomics, State Key Laboratory of Medical Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang Province, China; Affiliated Hangzhou First People's Hospital, School of Medicine, School of Future Biomedicine, Westlake University, Hangzhou 310024, Zhejiang Province, China; Research Center for Industries of the Future, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang Province, China.
Dietary protein restriction (PR) slows aging across multiple organs in mice by altering protein expression and epigenetics. This intervention shows potential cardiovascular benefits in mice and humans, with middle age being the optimal time for intervention.
Area of Science:
- Gerontology
- Proteomics
- Molecular Biology
Background:
- Population aging is a growing concern, but the mechanisms of multi-organ aging and the benefits of protein restriction (PR) are not fully understood.
- Aging affects various tissues differently, impacting their function and contributing to age-related diseases.
Purpose of the Study:
- To comprehensively analyze the aging process across 41 mouse tissues.
- To investigate the geroprotective effects of dietary protein restriction (PR) on multi-organ aging.
- To identify optimal intervention periods and species-specific benefits of PR.
Main Methods:
- Comprehensive proteomic analysis of 41 mouse tissues during aging and PR.
- Reduced representation bisulfite sequencing (RRBS) for epigenomic analysis.
- Phosphoproteomics and plasma sample analysis in mice and humans.
Main Results:
- Identified tissue-specific aging hallmarks, including immunoglobulin and serine protease inhibitor changes.
- PR mitigated age-related changes in protein expression, epigenomic states, and phosphorylation.
- PR improved adipose tissue function and demonstrated cardiovascular benefits in mice and humans.
Conclusions:
- Dietary protein restriction (PR) offers significant geroprotective effects across multiple organs.
- PR impacts aging through modulation of proteomic, epigenomic, and phosphoproteomic profiles.
- Middle age represents the optimal window for PR intervention, with potential benefits extending to cardiovascular health.
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