Abstract:
AIM:To investigate the effects of lentivirus-mediated shRNA targeting collagen type I on the mesangial cells of rats and the feasibility of lentivirus-mediated shRNA delivery through renal parenchyma injection. METHODS:Anti-collagen type I shRNA lentiviral vector was constructed, and rat mesangial cells were transfected with transfection enhancer (control group), blank lentiviral vectors (pSC-GFP group), and pSC-GFP/Col I lentiviral vectors (pSC-GFP/Col I group). Transfection efficiency and cell cycle were determined by flow cytometry. RT-PCR and Western blot were performed to detect the mRNA and protein expressions of Col I. Cell proliferation was evaluated by 3-(4,5)-dimethylthiahiazo-3, 5-di-phenytetrazolium-romide (MTT) assay and direct counting, and apoptosis was detected using AnnexinV/PE staining. The feasibility of renal parenchyma injection of lentiviral vectors was assessed. RESULTS:The transfection efficiency was 75.42%. The expressions of collagen type I in pSC-GFP/Col I group was markedly decreased when compared with the other two groups. PSC-GFP/Col I group was higher than pSC-GFP group in the inhibition efficiency of mesangial cell after transfection. Results revealed that pSC-GFP/Col I transfection induced apoptosis to a certain extent. The proportion of cells in G2/M phase in pSC-GFP/Col I group and pSC-GFP group was higher than that in control group after of transfection. Moreover, cells arrested in S phase were markedly increased. Our results also revealed renal injection of lentivirus-mediated shRNA was feasible. CONCLUSION:Lentivirus-mediated shRNA targeting collagen type I could stably and efficiently transfect rat mesangial cells and significantly suppressed collagen type I expressions with acceptable safety. Renal injection of Col I lentivirus-mediated shRNA was also feasible.
journal_name
Ren Failjournal_title
Renal failureauthors
Zhou C,Shan Y,Zhao H,He Pdoi
10.3109/0886022X.2011.559679subject
Has Abstractpub_date
2011-01-01 00:00:00pages
334-40issue
3eissn
0886-022Xissn
1525-6049journal_volume
33pub_type
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