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


ÖZBAŞ S., ÖZBAŞ S., ÖZBAŞ S., ÖZBAŞ S., ÖZBAŞ S.

EXPERIMENTAL AND MOLECULAR PATHOLOGY, cilt.110, 2019 (SCI İndekslerine Giren Dergi) identifier identifier identifier

Özet

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-beta 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-beta nanoplexes in glomerulonephritic rats were studied by molecular, biochemical, and histopathologic evaluations. Chitosan/siPDGF-B + siPDGFR-beta nanoplexes markedly reduced PDGF-B and PDGFR-beta mRNA and protein expressions in experimental MsPGN model. Histopathologic examination results showed that the silencing of PDGF-B and its receptor PDGFR-beta led to reduction in mesangial cell proliferation and matrix accumulation. The use of chitosan/siPDGF-B + siPDGFR-beta nanoplexes for silencing the PDGF-B pathway in MsPGN can be considered as a new effective therapeutic strategy.