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Microbiol Immunol. 2000;44(12):1019-25.

A VSV-G pseudotyped HIV vector mediates efficient transduction of human pulmonary artery smooth muscle cells.

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Division of Cardiovascular Medicine, Internal Medicine, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan.


Attempts were made to infect human vascular smooth muscle cells derived from the pulmonary artery (hPASMC) with two different human immunodeficiency virus (HIV) vector systems. ADA/Luc or HXB2/Luc were generated by cotransfection of luciferase reporter gene vector, pNL4-3-Luc-E- R-, and one of two envelope expressing vectors, pSMADA (R5) or pSMHXB2 (X4). The VSV-G/Luc or VSV-G/GFP were produced by a three-plasmid expression system which consisted of vesicular stomatitis virus G protein (VSV-G) expressing vector, packaging plasmid, and one of two reporter genes (pHR'-CMV-Luc or pHR'-CMV-GFP). We used hPASMC, U87.CD4.CCR5 and U87.CD4.CXCR4 for infection. Neither ADA/Luc nor HXB2/Luc could infect hPASMC, though they could infect U87.CD4 with corresponding coreceptors. On the other hand, the transduction of both VSV-G/Luc and VSV-G/GFP to hPASMC was remarkable. At day 3, the relative proportion of positive cells of hPASMC infected with VSV-G/GFP was 15%. The above finding indicates a direct role of HIV-1 infection in pulmonary hypertension 'a rare complication of HIV-1 infection' and HIV-based vectors could introduce foreign genes into hPASMC for gene therapy of pulmonary hypertension.

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