Abstract | BACKGROUND: METHODS: IRI was induced in the left kidneys of wild type (WT) C57BL/6J (B6) versus CLU knockout (KO) B6 mice by clamping the renal pedicles for 28 min at the body temperature of 32 °C. Tissue damage was examined by histology, infiltrate phenotypes by flow cytometry analysis, and fibrosis-related gene expression by PCR array. RESULTS: Reduction of kidney weight was induced by IRI, but was not affected by CLU KO. Both WT and KO kidneys had similar function with minimal cellular infiltration and fibrosis at day 14 of reperfusion. After 30 days, KO kidneys had greater loss in function than WT, indicated by the higher levels of both serum creatinine and BUN in KO mice, and exhibited more cellular infiltration (CD8 cells and macrophages), more tubular damage and more severe tissue fibrosis (glomerulopathy, interstitial fibrosis and vascular fibrosis). PCR array showed the association of CLU deficiency with up-regulation of CCL12, Col3a1, MMP9 and TIMP1 and down-regulation of EGF in these kidneys. CONCLUSION: Our data suggest that CLU deficiency worsens renal inflammation and tissue fibrosis after IRI in the kidney, which may be mediated through multiple pathways.
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Authors | Jia Guo, Qiunong Guan, Xiuheng Liu, Hao Wang, Martin E Gleave, Christopher Y C Nguan, Caigan Du |
Journal | BMC nephrology
(BMC Nephrol)
Vol. 17
Issue 1
Pg. 133
(09 20 2016)
ISSN: 1471-2369 [Electronic] England |
PMID | 27649757
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Biomarkers
- Clu protein, mouse
- Clusterin
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Topics |
- Animals
- Biomarkers
(metabolism)
- Clusterin
(deficiency)
- Fibrosis
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Nephritis
(metabolism, pathology)
- Recovery of Function
(physiology)
- Reperfusion Injury
(metabolism, pathology)
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