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Proteomic profiling of aging in glomeruli of mice by using two-dimensional differential gel electrophoresis.


ABSTRACT: BACKGROUND: Glomerular proteins were analyzed by proteomics to screen proteins participating in maturation of glomeruli before senescence and to find key proteins involved in the aging process. MATERIAL AND METHODS: Glomeruli of C57BL/6 mice at 8 and 20 weeks were separated by kidney perfusion. Proteomic profiles of glomeruli were investigated by using two-dimensional differential gel electrophoresis and MALDI-TOF mass spectrometry. RESULTS: We identified 22 differentially expressed proteins. Among them, 3 proteins were significantly up-regulated and 19 proteins were significantly down-regulated in mature mice. Out of these 22 proteins, 18% take part in protein transport, protein targeting, and proteolysis; 5% in glycolysis; 14% in transcription; 9% in electron transport; 9% were chaperones; and 9% were hydrolases. CONCLUSIONS: Our results provide insights into the glomerular differentially expressed proteins correlated with renal aging. In this study we found that aging altered the expression of ATP synthase subunit beta. Further studies on this protein might help to understand the mechanism of renal aging.

SUBMITTER: Liu X 

PROVIDER: S-EPMC4548697 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Proteomic profiling of aging in glomeruli of mice by using two-dimensional differential gel electrophoresis.

Liu Xiaodan X   Fan Qiuling Q   Yang Gang G   Wang Lining L  

Medical science monitor : international medical journal of experimental and clinical research 20150207


<h4>Background</h4>Glomerular proteins were analyzed by proteomics to screen proteins participating in maturation of glomeruli before senescence and to find key proteins involved in the aging process.<h4>Material and methods</h4>Glomeruli of C57BL/6 mice at 8 and 20 weeks were separated by kidney perfusion. Proteomic profiles of glomeruli were investigated by using two-dimensional differential gel electrophoresis and MALDI-TOF mass spectrometry.<h4>Results</h4>We identified 22 differentially exp  ...[more]

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