PMID- 25012471 OWN - NLM STAT- MEDLINE DCOM- 20150330 LR - 20211021 IS - 1471-2369 (Electronic) IS - 1471-2369 (Linking) VI - 15 DP - 2014 Jul 9 TI - Transplantation of endothelial progenitor cells in treating rats with IgA nephropathy. PG - 110 LID - 10.1186/1471-2369-15-110 [doi] AB - BACKGROUND: Therapeutic options in IgAN are still limited. The aim of this study is to explore the feasibility of using endothelial progenitor cell to treat IgAN in rat model. METHODS: Rat bone marrow mononuclear cells (BM-MNCs) obtained with density gradient centrifugation were cultured in vitro, and induced into endothelial progenitor cells (EPCs). EPCs were identified by surface marker CD34, CD133 and VEGFR2 (FLK-1) and by Dil-Ac-LDL/FITC-UEA-1 double staining. EPCs were labeled with PKH26 prior to transplantation. Rat model of IgAN was established by oral administration of bovine serum albumin together with lipopolysaccharide via the caudal vein and subcutaneous injection of CCL4. Kidney paraffin sections were stained by H&E and PAS. Immunofluorescence was used to assess IgA deposition in the glomeruli. Peritubular capillary (PTC) density was determined by CD31 staining. Monocyte chemoattrant protein-1 (MCP-1), hypoxia-inducible factor-1alpha (HIF-1alpha) and CD105 were also measured by immunohistochemistry, western blotting and real-time fluorescent quantitative PCR. RESULTS: The transplanted BM-EPCs were successfully located in IgAN rat kidney. After transplantation, Urinary red blood cell, urine protein, BUN, Scr and IgA serum level were significantly decreased, so were the areas of glomerular extracellular matrix and the IgA deposition in the glomeruli. In addition, PTC density was elevated. And the expression levels of HIF-1alpha and MCP-1 were significantly down-regulated, while the expression of CD105 was up-regulated. All these changes were not observed in control groups. CONCLUSION: The BM-EPCs transplantation significantly decreases the expansion of glomerular extracellular matrix and the deposition of IgA in the glomeruli; lowers the expression of inflammatory factors; increases PTC density; improves ischemic-induced renal tissue hypoxia, all of which improves the renal function and slows the progress of IgA nephropathy. FAU - Guo, Wei AU - Guo W FAU - Feng, Jiang-Min AU - Feng JM AD - Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China. fengjiangm@163.com. FAU - Yao, Li AU - Yao L FAU - Sun, Li AU - Sun L FAU - Zhu, Guang-Qing AU - Zhu GQ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140709 PL - England TA - BMC Nephrol JT - BMC nephrology JID - 100967793 SB - IM MH - Animals MH - Bone Marrow Transplantation/*methods MH - Cells, Cultured MH - Endothelial Progenitor Cells/physiology/*transplantation MH - Female MH - Glomerulonephritis, IGA/metabolism/*pathology/*therapy MH - Rats MH - Rats, Sprague-Dawley MH - Treatment Outcome PMC - PMC4109798 EDAT- 2014/07/12 06:00 MHDA- 2015/03/31 06:00 PMCR- 2014/07/09 CRDT- 2014/07/12 06:00 PHST- 2013/10/28 00:00 [received] PHST- 2014/07/02 00:00 [accepted] PHST- 2014/07/12 06:00 [entrez] PHST- 2014/07/12 06:00 [pubmed] PHST- 2015/03/31 06:00 [medline] PHST- 2014/07/09 00:00 [pmc-release] AID - 1471-2369-15-110 [pii] AID - 10.1186/1471-2369-15-110 [doi] PST - epublish SO - BMC Nephrol. 2014 Jul 9;15:110. doi: 10.1186/1471-2369-15-110.