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- W2006335965 abstract "Background: Neointima formation after human saphenous vein grafting (hSVG) involves several matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs). This study assessed the feasibility of modulating MMP activity in hSVGs by adenovirus-mediated gene transfer. Methods: First, 1 × 109 plaque-forming units (pfu) of replication-deficient recombinant adenoviruses encoding either β-galactosidase (Ad βgal), MMP-3 (AdMMP-3), or TIMP-1 (AdTIMP-1) were added into the lumen of hSVGs for 1 hour. After incubation at 37° C for 24 hours, specimens were analyzed by immunohistochemistry, in situ zymography, and X-gal staining. Results: By X-gal staining Ad β gal-infected hSVGs stained positively in the intima and occasionally in the media. Immunohistochemistry of AdMMP-3- and AdTIMP-1-infected hSVGs localized these proteins to the intima. In situ zymography showed increased MMP activity in the intima of AdMMP-3-infected hSVGs relative to AdTIMP-1- or Ad β gal-infected vessels. Conclusions: MMP-3 and TIMP activity can be regulated in hSVGs by replication-deficient recombinant adenoviruses. We have previously demonstrated that MMP-3 or TIMP-1 transduction, or both, inhibit SMC migration in an in vitro reconstituted vessel wall. Modulation of MMP activity may thus afford high patency rates in genetically engineered hSVGs. However, adenovirus-mediated gene delivery is limited to the vessel's intima; strategies to infect medial smooth muscle cells need to be developed. (Surgery 1998;124:129-36)" @default.
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- W2006335965 date "1998-08-01" @default.
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- W2006335965 title "Modulation of matrix metalloproteinase activity in human saphenous vein grafts using adenovirus-mediated gene transfer" @default.
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- W2006335965 doi "https://doi.org/10.1016/s0039-6060(98)70112-6" @default.
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