title: Satellite cell myogenesis is highly stimulated by the kinase inhibitor iso-H7: comparison with HA1004 and staurosporine effects.
abstract: Differentiation of rat satellite cells, measured by cell fusion into myotubes and isozymic conversion of creatine kinase and phosphoglycerate mutase, was shown to be highly increased in the presence of 1-(5-isoquinolinylsulfonyl)-3-methylpiperazine (iso-H7). This substance inhibited both protein kinase C (PKC) and cAMP-dependent protein kinase (PKA) activities with similar IC50 between 22 and 34 microM. Iso-H7, as well as the PKA inhibitor HA1004 increased myogenic differentiation without altering the proliferation of satellite cells, whereas the proliferation and the differentiation of these cells were inhibited by the PKC inhibitor staurosporine. Our results suggest a predominant negative control of PKA on satellite cell myogenesis.
authors: Laboratoire Myogénèse et Régénération Musculaire (MYREM), CRRET, Université Paris XII-Val de Marne, Créteil, France.
authors: C
authors: C
authors: Lagord
authors: G
authors: G
authors: Carpentier
authors: J
authors: J
authors: Moraczewski
authors: G
authors: G
authors: Pons
authors: F
authors: F
authors: Climent
authors: I
authors: I
authors: Martelly
mesh_terms: D019307:1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine / Q000031:analogs & derivatives*; D000470:Alkaloids / Q000494:pharmacology*; D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects; D002459:Cell Fusion / Q000187:drug effects; D002478:Cells, Cultured; D003402:Creatine Kinase / Q000378:metabolism; D066298:In Vitro Techniques; D007546:Isoquinolines / Q000494:pharmacology*; D009132:Muscles / Q000166:cytology*; D010879:Piperazines / Q000494:pharmacology*; D011493:Protein Kinase C / Q000037:antagonists & inhibitors*; D047428:Protein Kinase Inhibitors; D051381:Rats; D019311:Staurosporine; D013449:Sulfonamides
chemical_list: D000470:Alkaloids; D007546:Isoquinolines; D010879:Piperazines; D047428:Protein Kinase Inhibitors; D013449:Sulfonamides; C080501:1-(5-isoquinolinylsulfonyl)-3-methylpiperazine; D019307:1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine; C043204:N-(2-guanidinoethyl)-5-isoquinolinesulfonamide; D011493:Protein Kinase C; D003402:Creatine Kinase; D019311:Staurosporine