PMID- 16251994 OWN - NLM STAT- MEDLINE DCOM- 20060522 LR - 20121115 IS - 0969-7128 (Print) IS - 0969-7128 (Linking) VI - 13 IP - 4 DP - 2006 Feb TI - Dominant-negative c-Jun inhibits rat cardiac hypertrophy induced by angiotensin II and hypertension. PG - 348-55 AB - Cardiac activator protein-1 (AP-1), composed of c-Jun, is significantly activated by hypertension or angiotensin II (AngII). This study was undertaken to elucidate whether c-Jun could be the potential target for treatment of cardiac hypertrophy. We constructed recombinant adenovirus carrying dominant-negative mutant of c-Jun (Ad.DN-c-Jun). Using catheter-based technique of adenoviral gene transfer, we achieved global myocardial transduction of DN-c-Jun in rats, to specifically inhibit cardiac AP-1. (1) AngII (200 ng/kg/min) infusion in rats caused cardiac hypertrophy, increased cardiac p70S6 kinase activity by 1.3-fold (P<0.05) and enhanced the gene expression of cardiac hypertrophic markers. Ad.DN-c-Jun, which was transferred to the heart 2 days before AngII infusion, prevented cardiac hypertrophy (P<0.01), decreased p70S6 kinase phosphorylation (P<0.05), and suppressed cardiac gene expression of brain natriuretic peptide, collagen I, III, and IV, monocyte chemoattractant protein-1 (MCP-1) and plasminogen activator inhibitor-1 (PAI-1) (P<0.01). (2) In genetically hypertensive rats with cardiac hypertrophy, cardiac gene transfer of Ad.DN-c-Jun, without affecting hypertension, regressed cardiac hypertrophy (P<0.05), and suppressed p70S6 kinase phosphorylation by 20% (P<0.05) and suppressed the enhanced expression of collagen I, III, and IV, MCP-1 and PAI-1. These results provided the first evidence that in vivo blockade of cardiac c-Jun inhibits pathologic cardiac hypertrophy. FAU - Kim-Mitsuyama, S AU - Kim-Mitsuyama S AD - Department of Pharmacology and Molecular Therapeutics, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan. kimmitsu@gpo.kumamoto-u.ac.jp FAU - Izumi, Y AU - Izumi Y FAU - Izumiya, Y AU - Izumiya Y FAU - Namba, M AU - Namba M FAU - Yoshida, K AU - Yoshida K FAU - Wake, R AU - Wake R FAU - Yoshiyama, M AU - Yoshiyama M FAU - Iwao, H AU - Iwao H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Gene Ther JT - Gene therapy JID - 9421525 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Collagen Type I) RN - 0 (Collagen Type III) RN - 0 (Collagen Type IV) RN - 0 (Plasminogen Activator Inhibitor 1) RN - 0 (Transcription Factor AP-1) RN - 11128-99-7 (Angiotensin II) RN - 114471-18-0 (Natriuretic Peptide, Brain) RN - EC 2.7.11.1 (Ribosomal Protein S6 Kinases, 70-kDa) SB - IM MH - Adenoviridae/genetics MH - Angiotensin II/adverse effects/metabolism MH - Animals MH - Blotting, Western/methods MH - Cardiomegaly/etiology/metabolism/*prevention & control MH - Chemokine CCL2/metabolism MH - Collagen Type I/metabolism MH - Collagen Type III/metabolism MH - Collagen Type IV/metabolism MH - *Gene Deletion MH - *Genes, Dominant MH - Genetic Therapy/*methods MH - Genetic Vectors/administration & dosage/genetics MH - Hypertension/complications/metabolism MH - Injections MH - Male MH - Models, Animal MH - Natriuretic Peptide, Brain/genetics MH - Phosphorylation MH - Plasminogen Activator Inhibitor 1/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Ribosomal Protein S6 Kinases, 70-kDa/metabolism MH - Transcription Factor AP-1/*genetics/metabolism EDAT- 2005/10/28 09:00 MHDA- 2006/05/23 09:00 CRDT- 2005/10/28 09:00 PHST- 2005/10/28 09:00 [pubmed] PHST- 2006/05/23 09:00 [medline] PHST- 2005/10/28 09:00 [entrez] AID - 3302670 [pii] AID - 10.1038/sj.gt.3302670 [doi] PST - ppublish SO - Gene Ther. 2006 Feb;13(4):348-55. doi: 10.1038/sj.gt.3302670.