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Clin Exp Nephrol. 2011 Feb;15(1):8-13. doi: 10.1007/s10157-010-0372-2. Epub 2010 Dec 10.

Involvement of bone-marrow-derived cells in kidney fibrosis.

Author information

1
Division of Nephrology, Department of Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Faculty of Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-8641, Japan. twada@m-kanazawa.jp

Abstract

Cellular mechanisms have been proposed in the pathogenesis of fibrotic processes in the kidney. In this setting, cell sources underlying the generation of matrix-producing cells in diseased kidneys have been categorized as activated resident stromal cells (e.g., fibroblasts, pericytes), infiltrating bone-marrow-derived cells (e.g., fibrocytes, T cells, macrophages), and cells derived from epithelial-mesenchymal transition/endothelial-mesenchymal transition. Among these cell sources, accumulating evidence has shed light on the involvement of bone-marrow-derived cells, including monocytes/macrophages, and a circulating mesenchymal progenitor cell, fibrocyte, in the progression of fibrosis in kidney. Bone-marrow-derived cells positive for CD45 or CD34, and type 1 (pro)collagen dependent on the chemokine and renin-angiotensin systems migrate into diseased kidneys and enhance synthesis matrix protein, cytokines/chemokines, and profibrotic growth factors, which may promote and escalate chronic inflammatory processes and possible interaction with resident stromal cells, thereby perpetuating kidney fibrosis.

PMID:
21152947
DOI:
10.1007/s10157-010-0372-2
[Indexed for MEDLINE]

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