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      Overexpression of Mitofusin 2 inhibited oxidized low-density lipoprotein induced vascular smooth muscle cell proliferation and reduced atherosclerotic lesion formation in rabbit

      , , , , , ,
      Biochemical and Biophysical Research Communications
      Elsevier BV

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          Abstract

          Our previous studies have implies that Mitofusin 2 (Mfn2), which was progressively reduced in arteries from ApoE(-/-) mice during the development of atherosclerosis, may take part in pathogenesis of atherosclerosis. In this study, we found that overexpression of Mfn2 inhibited oxidized low-density lipoprotein or serum induced vascular smooth muscle cell proliferation by down-regulation of Akt and ERK phosphorylation. Then we investigated the in vivo role of Mfn2 on the development of atherosclerosis in rabbits using adenovirus expressing Mitofusin 2 gene (AdMfn2). By morphometric analysis we found overexpression of Mfn2 inhibited atherosclerotic lesion formation and intima/media ratio by 66.7% and 74.6%, respectively, compared with control group. These results suggest that local Mfn2 treatment suppresses the development of atherosclerosis in vivo in part by attenuating the smooth muscle cell proliferation induced by lipid deposition and vascular injury.

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          Author and article information

          Journal
          Biochemical and Biophysical Research Communications
          Biochemical and Biophysical Research Communications
          Elsevier BV
          0006291X
          November 2007
          November 2007
          : 363
          : 2
          : 411-417
          Article
          10.1016/j.bbrc.2007.08.191
          17880918
          4e76f556-4831-419c-bce2-523198cff525
          © 2007

          https://www.elsevier.com/tdm/userlicense/1.0/

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