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The effectiveness of chitosan-mediated silencing of PDGF-B and PDGFR-β in the mesangial proliferative glomerulonephritis therapy.

08:00 EDT 29th June 2019 | BioPortfolio

Summary of "The effectiveness of chitosan-mediated silencing of PDGF-B and PDGFR-β in the mesangial proliferative glomerulonephritis therapy."

Platelet-derived growth factor-B (PDGF-B) is a growth factor that plays an important role in the progression of mesangial proliferative glomerulonephritis (MsPGN). PDGF-B may contribute to mesangioproliferative changes and is overexpressed in MsPGN. Recently, small interfering RNAs (siRNAs) have been widely used for gene silencing effects in experimental models of renal diseases. Nanoparticle-based therapeutics are preferred for reasons such as increasing therapeutic efficacy and reducing toxic effects caused by high doses. The distribution of nanoparticles to the kidney is a significant advantage in siRNA delivery. The aim of this study was to investigate the efficacy of chitosan/siRNA nanoplexes in silencing of PDGF-B and PDGFR-β genes in kidney and to decrease mesangial cell proliferation and matrix accumulation in MsPGN model induced by anti-Thy-1.1 antibody. The therapeutic effects of chitosan/siPDGF-B + siPDGFR-β nanoplexes in glomerulonephritic rats were studied by molecular, biochemical, and histopathologic evaluations. Chitosan/siPDGF-B + siPDGFR-β nanoplexes markedly reduced PDGF-B and PDGFR-β mRNA and protein expressions in experimental MsPGN model. Histopathologic examination results showed that the silencing of PDGF-B and its receptor PDGFR-β led to reduction in mesangial cell proliferation and matrix accumulation. The use of chitosan/siPDGF-B + siPDGFR-β nanoplexes for silencing the PDGF-B pathway in MsPGN can be considered as a new effective therapeutic strategy.

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This article was published in the following journal.

Name: Experimental and molecular pathology
ISSN: 1096-0945
Pages: 104280

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Medical and Biotech [MESH] Definitions

A PDGF receptor that binds specifically to both PDGF-A chains and PDGF-B chains. It contains a protein-tyrosine kinase activity that is involved in SIGNAL TRANSDUCTION.

A PDGF receptor that binds specifically to the PDGF-B chain. It contains a protein-tyrosine kinase activity that is involved in SIGNAL TRANSDUCTION.

Specific receptors on cell membranes that react with PLATELET-DERIVED GROWTH FACTOR, its analogs, or antagonists. The alpha PDGF receptor (RECEPTOR, PLATELET-DERIVED GROWTH FACTOR ALPHA) and the beta PDGF receptor (RECEPTOR, PLATELET-DERIVED GROWTH FACTOR BETA) are the two principle types of PDGF receptors. Activation of the protein-tyrosine kinase activity of the receptors occurs by ligand-induced dimerization or heterodimerization of PDGF receptor types.

Smooth muscle-like cells adhering to the wall of the small blood vessels of the KIDNEY at the glomerulus and along the vascular pole of the glomerulus in the JUXTAGLOMERULAR APPARATUS. They are myofibroblasts with contractile and phagocytic properties. These cells and their MESANGIAL EXTRACELLULAR MATRIX constitute the GLOMERULAR MESANGIUM.

Chronic glomerulonephritis characterized histologically by proliferation of MESANGIAL CELLS, increase in the MESANGIAL EXTRACELLULAR MATRIX, and a thickening of the glomerular capillary walls. This may appear as a primary disorder or secondary to other diseases including infections and autoimmune disease SYSTEMIC LUPUS ERYTHEMATOSUS. Various subtypes are classified by their abnormal ultrastructures and immune deposits. Hypocomplementemia is a characteristic feature of all types of MPGN.

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