title: Expression of bone morphogenetic protein-2 via adenoviral vector in C2C12 myoblasts induces differentiation into the osteoblast lineage.
abstract: To examine the effectiveness of a gene transfer of bone morphogenetic protein (BMP)-2 into C2C12 myoblasts, we constructed a human BMP-2-expressing replication-deficient adenoviral vector, AxCAOBMP-2. C2C12 cells were infected in vitro with either this viral vector or an Escherichia coli LacZ gene-expressing control adenovirus vector. An efficient gene transfer to the C2C12 cells was confirmed with the LacZ gene-expressing vector by X-gal staining. Abundant BMP-2 expression in C2C12 cells infected with this viral vector was confirmed by immunofluorescence and Western blot analysis. C2C12 cells transferred with the BMP-2 gene by this vector produced alkaline phosphatase in the cells and also produced and secreted osteocalcin in the culture medium, demonstrating that a gene transfer of BMP-2 into C2C12 cells in vitro could convert these cells from myoblast to osteoblast lineage.
authors.affiliation: Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Okubo
authors.forename: K
authors.initials: K
authors.lastname: Bessho
authors.forename: K
authors.initials: K
authors.lastname: Fujimura
authors.forename: T
authors.initials: T
authors.lastname: Iizuka
authors.forename: S
authors.initials: S
authors.lastname: Miyatake
mesh_terms: D000256:Adenoviridae; D000469:Alkaline Phosphatase / Q000096:biosynthesis; D055396:Bone Morphogenetic Protein 2; D019485:Bone Morphogenetic Proteins / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology*; D002454:Cell Differentiation; D004926:Escherichia coli; D019084:Fluorescent Antibody Technique, Indirect; D005822:Genetic Vectors; D006801:Humans; D018482:Muscle, Skeletal / Q000166:cytology*; D010006:Osteoblasts / Q000166:cytology*; D015675:Osteocalcin / Q000096:biosynthesis; D011994:Recombinant Proteins / Q000096:biosynthesis; D014162:Transfection; D016212:Transforming Growth Factor beta; D001616:beta-Galactosidase / Q000235:genetics
chemical_list: C525718:BMP2 protein, human; D055396:Bone Morphogenetic Protein 2; D019485:Bone Morphogenetic Proteins; D011994:Recombinant Proteins; D016212:Transforming Growth Factor beta; C499469:recombinant human bone morphogenetic protein-2; D015675:Osteocalcin; D000469:Alkaline Phosphatase; D001616:beta-Galactosidase