title: Accelerated reendothelialization with suppressed thrombogenic property and neointimal hyperplasia of rabbit jugular vein grafts by adenovirus-mediated gene transfer of C-type natriuretic peptide.
abstract: BACKGROUND
  Vein graft disease limits the late results of coronary revascularization. C-type natriuretic peptide (CNP) inhibits the growth of vascular smooth muscle cells. Given the effects of CNP on cGMP cascade, we hypothesized that transfected CNP genes modulate endothelial repair and thrombogenicity in the vein graft.
  
  
  RESULTS
  Autologous rabbit jugular vein grafts were incubated ex vivo in a solution of adenovirus vectors containing CNP gene (Ad.CNP) or Escherichia coli lac Z gene (Ad.LacZ) and then interposed in the carotid artery. Reendothelialization, mural thrombi formation, and intima/media ratio were evaluated on the 14th and 28th postoperative days. More reendothelialization was seen in Ad.CNP-infected grafts than in Ad.LacZ-infected grafts both at 14 days (0.81+/-0.05 versus 0.30+/-0.14, P<0.01) and at 28 days (0.96+/-0.01 versus 0.45+/-0.08, P<0.001). The mural thrombus area was smaller in Ad.CNP-infected grafts than in Ad.LacZ-infected grafts. Neointimal thickening was significantly suppressed in the Ad.CNP group. The in vitro wound assay with human coronary artery endothelial cells revealed significant potentiation of the wound repair process by CNP and atrial natriuretic peptide administration.
  
  
  CONCLUSIONS
  Infected Ad.CNP accelerated reendothelialization and suppressed thrombosis and neointimal hyperplasia. The method may potentially prevent vein graft disease in patients undergoing coronary artery revascularization.
authors.affiliation: Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Ohno
authors.forename: H
authors.initials: H
authors.lastname: Itoh
authors.forename: T
authors.initials: T
authors.lastname: Ikeda
authors.forename: K
authors.initials: K
authors.lastname: Ueyama
authors.forename: K
authors.initials: K
authors.lastname: Yamahara
authors.forename: K
authors.initials: K
authors.lastname: Doi
authors.forename: J
authors.initials: J
authors.lastname: Yamashita
authors.forename: M
authors.initials: M
authors.lastname: Inoue
authors.forename: K
authors.initials: K
authors.lastname: Masatsugu
authors.forename: N
authors.initials: N
authors.lastname: Sawada
authors.forename: Y
authors.initials: Y
authors.lastname: Fukunaga
authors.forename: S
authors.initials: S
authors.lastname: Sakaguchi
authors.forename: M
authors.initials: M
authors.lastname: Sone
authors.forename: T
authors.initials: T
authors.lastname: Yurugi
authors.forename: H
authors.initials: H
authors.lastname: Kook
authors.forename: M
authors.initials: M
authors.lastname: Komeda
authors.forename: K
authors.initials: K
authors.lastname: Nakao
mesh_terms: D000256:Adenoviridae / Q000235:genetics; D000818:Animals; D002339:Carotid Arteries / Q000601:surgery; D002478:Cells, Cultured; D004730:Endothelium, Vascular / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D022761:Gene Transfer, Horizontal; D015316:Genetic Therapy / Q000379:methods; D005822:Genetic Vectors / Q000008:administration & dosage / Q000235:genetics / Q000378:metabolism; D006083:Graft Occlusion, Vascular / Q000517:prevention & control*; D006801:Humans; D066298:In Vitro Techniques; D007601:Jugular Veins / Q000187:drug effects / Q000378:metabolism / Q000637:transplantation*; D008297:Male; D020098:Natriuretic Peptide, C-Type / Q000235:genetics / Q000378:metabolism* / Q000494:pharmacology; D011817:Rabbits; D051381:Rats; D013927:Thrombosis / Q000517:prevention & control*; D014182:Transplantation, Autologous; D016896:Treatment Outcome; D017539:Tunica Intima / Q000166:cytology / Q000187:drug effects; D014654:Vascular Patency / Q000187:drug effects
chemical_list: D020098:Natriuretic Peptide, C-Type