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2015 ; 21
(ä): 419-25
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Proteomic profiling of aging in glomeruli of mice by using two-dimensional
differential gel electrophoresis
#MMPMID25659849
Liu X
; Fan Q
; Yang G
; Wang L
Med Sci Monit
2015[Feb]; 21
(ä): 419-25
PMID25659849
show ga
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.