Effects of melanocortin 1 receptor agonists in experimental nephropathies.

Nephrotic syndrome, characterized by massive proteinuria, is caused by a large group of diseases including membranous nephropathy (MN) and focal segmental glomerulosclerosis (FSGS). Although the underlying mechanisms are beginning to unravel, therapy is unspecific and far from efficient. It has been...

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Autores principales: Annika Lindskog Jonsson, Anna Granqvist, Johannes Elvin, Martin E Johansson, Börje Haraldsson, Jenny Nyström
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Publicado: Public Library of Science (PLoS) 2014
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spelling oai:doaj.org-article:6ca5e8f53f5a4a4f990af4006af73e9c2021-11-18T08:34:44ZEffects of melanocortin 1 receptor agonists in experimental nephropathies.1932-620310.1371/journal.pone.0087816https://doaj.org/article/6ca5e8f53f5a4a4f990af4006af73e9c2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24498203/?tool=EBIhttps://doaj.org/toc/1932-6203Nephrotic syndrome, characterized by massive proteinuria, is caused by a large group of diseases including membranous nephropathy (MN) and focal segmental glomerulosclerosis (FSGS). Although the underlying mechanisms are beginning to unravel, therapy is unspecific and far from efficient. It has been suggested that adrenocorticotropic hormone (ACTH) has beneficial effects in patients with MN and possibly in other nephrotic diseases. We have previously reported that ACTH may act directly on podocytes through the melanocortin 1 receptor (MC1R). In the present study, we evaluate the effect of highly specific MC1R agonists in two different nephrotic disease models. Experimental MN: Passive Heymann nephritis (PHN) was induced in rats that were treated for four weeks with MS05, a selective MC1R agonist, or saline. The degree of albuminuria was significantly reduced over time and the effect was sustained one week after treatment withdrawal (p<0.05). Experimental FSGS: Based on a dose-response study, two doses of adriamycin were used for induction of nephropathy in Balb/c mice. Mice were treated with either a synthetic MC1R agonist (BMS-470539), with α-melanocyte stimulating hormone (α-MSH) or with saline. There was no beneficial effect of treatment. In summary, MC1R agonists reduce albuminuria and improve morphology in experimentally induced MN whereas they have no effect in experimental FSGS. The results illustrate the differences in these podocytopathies in terms of signaling mechanisms underlying proteinuria, and progression of disease.Annika Lindskog JonssonAnna GranqvistJohannes ElvinMartin E JohanssonBörje HaraldssonJenny NyströmPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e87816 (2014)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Annika Lindskog Jonsson
Anna Granqvist
Johannes Elvin
Martin E Johansson
Börje Haraldsson
Jenny Nyström
Effects of melanocortin 1 receptor agonists in experimental nephropathies.
description Nephrotic syndrome, characterized by massive proteinuria, is caused by a large group of diseases including membranous nephropathy (MN) and focal segmental glomerulosclerosis (FSGS). Although the underlying mechanisms are beginning to unravel, therapy is unspecific and far from efficient. It has been suggested that adrenocorticotropic hormone (ACTH) has beneficial effects in patients with MN and possibly in other nephrotic diseases. We have previously reported that ACTH may act directly on podocytes through the melanocortin 1 receptor (MC1R). In the present study, we evaluate the effect of highly specific MC1R agonists in two different nephrotic disease models. Experimental MN: Passive Heymann nephritis (PHN) was induced in rats that were treated for four weeks with MS05, a selective MC1R agonist, or saline. The degree of albuminuria was significantly reduced over time and the effect was sustained one week after treatment withdrawal (p<0.05). Experimental FSGS: Based on a dose-response study, two doses of adriamycin were used for induction of nephropathy in Balb/c mice. Mice were treated with either a synthetic MC1R agonist (BMS-470539), with α-melanocyte stimulating hormone (α-MSH) or with saline. There was no beneficial effect of treatment. In summary, MC1R agonists reduce albuminuria and improve morphology in experimentally induced MN whereas they have no effect in experimental FSGS. The results illustrate the differences in these podocytopathies in terms of signaling mechanisms underlying proteinuria, and progression of disease.
format article
author Annika Lindskog Jonsson
Anna Granqvist
Johannes Elvin
Martin E Johansson
Börje Haraldsson
Jenny Nyström
author_facet Annika Lindskog Jonsson
Anna Granqvist
Johannes Elvin
Martin E Johansson
Börje Haraldsson
Jenny Nyström
author_sort Annika Lindskog Jonsson
title Effects of melanocortin 1 receptor agonists in experimental nephropathies.
title_short Effects of melanocortin 1 receptor agonists in experimental nephropathies.
title_full Effects of melanocortin 1 receptor agonists in experimental nephropathies.
title_fullStr Effects of melanocortin 1 receptor agonists in experimental nephropathies.
title_full_unstemmed Effects of melanocortin 1 receptor agonists in experimental nephropathies.
title_sort effects of melanocortin 1 receptor agonists in experimental nephropathies.
publisher Public Library of Science (PLoS)
publishDate 2014
url https://doaj.org/article/6ca5e8f53f5a4a4f990af4006af73e9c
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