Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus Nephritis

Lupus nephritis affects up to 70% of patients with systemic lupus erythematosus and is a major cause of morbidity and mortality. It is characterized by a breakdown of immune tolerance, production of autoantibodies, and deposition of immune complexes within the kidney parenchyma, resulting in local i...

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Main Authors: Susan Yung, Kwok Fan Cheung, Qing Zhang, Tak Mao Chan
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Clinical and Developmental Immunology
Online Access:http://dx.doi.org/10.1155/2013/317682
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author Susan Yung
Kwok Fan Cheung
Qing Zhang
Tak Mao Chan
author_facet Susan Yung
Kwok Fan Cheung
Qing Zhang
Tak Mao Chan
author_sort Susan Yung
collection DOAJ
description Lupus nephritis affects up to 70% of patients with systemic lupus erythematosus and is a major cause of morbidity and mortality. It is characterized by a breakdown of immune tolerance, production of autoantibodies, and deposition of immune complexes within the kidney parenchyma, resulting in local inflammation and subsequent organ damage. To date, numerous mediators of inflammation have been implicated in the development and progression of lupus nephritis, and these include cytokines, chemokines, and glycosaminoglycans. Of these, type I interferons (IFNs) can increase both gene and protein expression of cytokines and chemokines associated with lupus susceptibility, and interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and hyaluronan have been shown to elicit both pro- and anti-inflammatory effects on infiltrating and resident renal cells depending on the status of their microenvironment. Expression of IL-6, TNF-α, type I IFNs, and hyaluronan are increased in the kidneys of patients and mice with active lupus nephritis and have been shown to contribute to disease pathogenesis. There is also evidence that despite clinical remission, ongoing inflammatory processes may occur within the glomerular and tubulointerstitial compartments of the kidney, which further promote kidney injury. In this review, we provide an overview of the synthesis and putative roles of IL-6, TNF-α, IFN-α, and hyaluronan in the pathogenesis of lupus nephritis focusing on their effects on human mesangial cells and proximal renal tubular epithelial cells.
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spelling doaj-art-900919be447447edb5d8ec232f061de02025-02-03T01:32:45ZengWileyClinical and Developmental Immunology1740-25221740-25302013-01-01201310.1155/2013/317682317682Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus NephritisSusan Yung0Kwok Fan Cheung1Qing Zhang2Tak Mao Chan3Department of Medicine, The University of Hong Kong, Hong KongDepartment of Medicine, The University of Hong Kong, Hong KongDepartment of Medicine, The University of Hong Kong, Hong KongDepartment of Medicine, The University of Hong Kong, Hong KongLupus nephritis affects up to 70% of patients with systemic lupus erythematosus and is a major cause of morbidity and mortality. It is characterized by a breakdown of immune tolerance, production of autoantibodies, and deposition of immune complexes within the kidney parenchyma, resulting in local inflammation and subsequent organ damage. To date, numerous mediators of inflammation have been implicated in the development and progression of lupus nephritis, and these include cytokines, chemokines, and glycosaminoglycans. Of these, type I interferons (IFNs) can increase both gene and protein expression of cytokines and chemokines associated with lupus susceptibility, and interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and hyaluronan have been shown to elicit both pro- and anti-inflammatory effects on infiltrating and resident renal cells depending on the status of their microenvironment. Expression of IL-6, TNF-α, type I IFNs, and hyaluronan are increased in the kidneys of patients and mice with active lupus nephritis and have been shown to contribute to disease pathogenesis. There is also evidence that despite clinical remission, ongoing inflammatory processes may occur within the glomerular and tubulointerstitial compartments of the kidney, which further promote kidney injury. In this review, we provide an overview of the synthesis and putative roles of IL-6, TNF-α, IFN-α, and hyaluronan in the pathogenesis of lupus nephritis focusing on their effects on human mesangial cells and proximal renal tubular epithelial cells.http://dx.doi.org/10.1155/2013/317682
spellingShingle Susan Yung
Kwok Fan Cheung
Qing Zhang
Tak Mao Chan
Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus Nephritis
Clinical and Developmental Immunology
title Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus Nephritis
title_full Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus Nephritis
title_fullStr Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus Nephritis
title_full_unstemmed Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus Nephritis
title_short Mediators of Inflammation and Their Effect on Resident Renal Cells: Implications in Lupus Nephritis
title_sort mediators of inflammation and their effect on resident renal cells implications in lupus nephritis
url http://dx.doi.org/10.1155/2013/317682
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