title: Lentivirus mediated HO-1 gene transfer enhances myogenic precursor cell survival after autologous transplantation in pig.
abstract: Cell therapy for Duchenne muscular dystrophy and other muscle diseases is limited by a massive early cell death following injections. In this study, we explored the potential benefit of heme oxygenase-1 (HO-1) expression in the survival of porcine myogenic precursor cells (MPCs) transplanted in pig skeletal muscle. Increased HO-1 expression was assessed either by transient hyperthermia or by HO-1 lentiviral infection. One day after the thermic shock, we observed a fourfold and a threefold increase in HSP70/72 and HO-1 levels, respectively. This treatment protected 30% of cells from staurosporine-induced apoptosis in vitro. When porcine MPC were heat-shocked prior to grafting, we improved cell survival by threefold at 5 days after autologous transplantation (26.3 +/- 5.5% surviving cells). After HO-1 lentiviral transduction, almost 60% of cells expressed the transgene and kept their myogenic properties to proliferate and fuse in vitro. Apoptosis of HO-1 transduced cells was reduced by 50% in vitro after staurosporine induction. Finally, a fivefold enhancement in cell survival was observed after transplantation of HO-1-group (47.5 +/- 9.1% surviving cells) as compared to the nls-LacZ-group or control group. These results identify HO-1 as a protective gene against early MPC death post-transplantation.
authors.affiliation: Department of Orthopaedic Surgery, University Hospital of Geneva, Geneva, Switzerland. thomas.laumonier@medecine.unige.ch
authors.forename: Thomas
authors.initials: T
authors.lastname: Laumonier
authors.forename: Sheng
authors.initials: S
authors.lastname: Yang
authors.forename: Stephane
authors.initials: S
authors.lastname: Konig
authors.forename: Christine
authors.initials: C
authors.lastname: Chauveau
authors.forename: Ignacio
authors.initials: I
authors.lastname: Anegon
authors.forename: Pierre
authors.initials: P
authors.lastname: Hoffmeyer
authors.forename: Jacques
authors.initials: J
authors.lastname: Menetrey
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000187:drug effects; D015153:Blotting, Western; D002470:Cell Survival / Q000235:genetics / Q000502:physiology; D002478:Cells, Cultured; D005260:Female; D005434:Flow Cytometry; D018840:HSP70 Heat-Shock Proteins / Q000378:metabolism; D006360:Heat-Shock Proteins / Q000378:metabolism; D051547:Heme Oxygenase-1 / Q000235:genetics / Q000378:metabolism*; D016086:Lentivirus / Q000235:genetics*; D032446:Myoblasts / Q000166:cytology* / Q000637:transplantation*; D032448:Myoblasts, Skeletal / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D034741:RNA, Small Interfering / Q000235:genetics; D019311:Staurosporine / Q000494:pharmacology; D013552:Swine; D014182:Transplantation, Autologous
chemical_list: D018840:HSP70 Heat-Shock Proteins; D006360:Heat-Shock Proteins; D034741:RNA, Small Interfering; D051547:Heme Oxygenase-1; D019311:Staurosporine