PMID- 25014216 OWN - NLM STAT- MEDLINE DCOM- 20150304 LR - 20240322 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 7 DP - 2014 TI - PARP-inhibitor treatment prevents hypertension induced cardiac remodeling by favorable modulation of heat shock proteins, Akt-1/GSK-3beta and several PKC isoforms. PG - e102148 LID - 10.1371/journal.pone.0102148 [doi] LID - e102148 AB - Spontaneously hypertensive rat (SHR) is a suitable model for studies of the complications of hypertension. It is known that activation of poly(ADP-ribose) polymerase enzyme (PARP) plays an important role in the development of postinfarction as well as long-term hypertension induced heart failure. In this study, we examined whether PARP-inhibitor (L-2286) treatment could prevent the development of hypertensive cardiopathy in SHRs. 6-week-old SHR animals were treated with L-2286 (SHR-L group) or placebo (SHR-C group) for 24 weeks. Wistar-Kyoto rats were used as aged-matched, normotensive controls (WKY group). Echocardiography was performed, brain-derived natriuretic peptide (BNP) activity and blood pressure were determined at the end of the study. We detected the extent of fibrotic areas. The amount of heat-shock proteins (Hsps) and the phosphorylation state of Akt-1(Ser473), glycogen synthase kinase (GSK)-3beta(Ser9), forkhead transcription factor (FKHR)(Ser256), mitogen activated protein kinases (MAPKs), and protein kinase C (PKC) isoenzymes were monitored. The elevated blood pressure in SHRs was not influenced by PARP-inhibitor treatment. Systolic left ventricular function and BNP activity did not differ among the three groups. L-2286 treatment decreased the marked left ventricular (LV) hypertrophy which was developed in SHRs. Interstitial collagen deposition was also decreased by L-2286 treatment. The phosphorylation of extracellular signal-regulated kinase (ERK)1/2(Thr183-Tyr185), Akt-1(Ser473), GSK-3beta(Ser9), FKHR(Ser256), and PKC epsilon(Ser729) and the level of Hsp90 were increased, while the activity of PKC alpha/betaII(Thr638/641), zeta/lambda(410/403) were mitigated by L-2286 administration. We could detect signs of LV hypertrophy without congestive heart failure in SHR groups. This alteration was prevented by PARP inhibition. Our results suggest that PARP-inhibitor treatment has protective effect already in the early stage of hypertensive myocardial remodeling. FAU - Deres, Laszlo AU - Deres L AD - First Department of Medicine, Division of Cardiology, University of Pecs, Pecs, Hungary; Szentagothai Janos Research Center, University of Pecs, Medical School, Pecs, Hungary. FAU - Bartha, Eva AU - Bartha E AD - First Department of Medicine, Division of Cardiology, University of Pecs, Pecs, Hungary. FAU - Palfi, Anita AU - Palfi A AD - First Department of Medicine, Division of Cardiology, University of Pecs, Pecs, Hungary. FAU - Eros, Krisztian AU - Eros K AD - First Department of Medicine, Division of Cardiology, University of Pecs, Pecs, Hungary; Szentagothai Janos Research Center, University of Pecs, Medical School, Pecs, Hungary. FAU - Riba, Adam AU - Riba A AD - First Department of Medicine, Division of Cardiology, University of Pecs, Pecs, Hungary; Szentagothai Janos Research Center, University of Pecs, Medical School, Pecs, Hungary. FAU - Lantos, Janos AU - Lantos J AD - Department of Surgical Research and Techniques, University of Pecs, Pecs, Hungary. FAU - Kalai, Tamas AU - Kalai T AD - Department of Organic and Medicinal Chemistry, University of Pecs, Pecs, Hungary. FAU - Hideg, Kalman AU - Hideg K AD - Department of Organic and Medicinal Chemistry, University of Pecs, Pecs, Hungary. FAU - Sumegi, Balazs AU - Sumegi B AD - Szentagothai Janos Research Center, University of Pecs, Medical School, Pecs, Hungary; Department of Biochemistry and Medical Chemistry, Medical School, University of Pecs, Pecs, Hungary; MTA-PTE Nuclear-Mitochondrial Interactions Research Group, Pecs, Hungary. FAU - Gallyas, Ferenc AU - Gallyas F AD - Department of Biochemistry and Medical Chemistry, Medical School, University of Pecs, Pecs, Hungary; MTA-PTE Nuclear-Mitochondrial Interactions Research Group, Pecs, Hungary. FAU - Toth, Kalman AU - Toth K AD - First Department of Medicine, Division of Cardiology, University of Pecs, Pecs, Hungary. FAU - Halmosi, Robert AU - Halmosi R AD - First Department of Medicine, Division of Cardiology, University of Pecs, Pecs, Hungary; Szentagothai Janos Research Center, University of Pecs, Medical School, Pecs, Hungary. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140711 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (2-((2-piperidin-1-ylethyl)thio)quinazolin-4(3H)-one) RN - 0 (Forkhead Transcription Factors) RN - 0 (HSP90 Heat-Shock Proteins) RN - 0 (Isoenzymes) RN - 0 (Nerve Tissue Proteins) RN - 0 (Piperidines) RN - 0 (Poly(ADP-ribose) Polymerase Inhibitors) RN - 0 (Quinazolines) RN - 114471-18-0 (Natriuretic Peptide, Brain) RN - 0 (Foxo1 protein, rat) RN - EC 2.4.2.30 (Poly(ADP-ribose) Polymerases) RN - EC 2.7.11.1 (Akt1 protein, rat) RN - EC 2.7.11.1 (Glycogen Synthase Kinase 3 beta) RN - EC 2.7.11.1 (Gsk3b protein, rat) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.13 (Protein Kinase C) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) RN - EC 2.7.11.26 (Glycogen Synthase Kinase 3) SB - IM MH - Animals MH - Blood Pressure/drug effects MH - Extracellular Signal-Regulated MAP Kinases/genetics/metabolism MH - Forkhead Transcription Factors/genetics/metabolism MH - Gene Expression Regulation/*drug effects MH - Glycogen Synthase Kinase 3/genetics/metabolism MH - Glycogen Synthase Kinase 3 beta MH - HSP90 Heat-Shock Proteins/genetics/metabolism MH - Heart Failure/etiology/genetics/physiopathology/*prevention & control MH - Hypertension/complications/*drug therapy/genetics/physiopathology MH - Hypertrophy, Left Ventricular/*drug therapy/etiology/genetics/physiopathology MH - Isoenzymes/genetics/metabolism MH - Male MH - Natriuretic Peptide, Brain/genetics/metabolism MH - Nerve Tissue Proteins/genetics/metabolism MH - Phosphorylation MH - Piperidines/*pharmacology MH - *Poly(ADP-ribose) Polymerase Inhibitors MH - Poly(ADP-ribose) Polymerases/genetics/metabolism MH - Protein Kinase C/genetics/metabolism MH - Proto-Oncogene Proteins c-akt/genetics/metabolism MH - Quinazolines/*pharmacology MH - Rats MH - Rats, Inbred SHR MH - Rats, Inbred WKY MH - Signal Transduction PMC - PMC4094529 COIS- Competing Interests: Co-author Ferenc Gallyas Jr. PhD, DSc is a PLOS ONE Editorial Board member. This does not alter the authors' adherence to PLOS ONE Editorial policies and criteria. EDAT- 2014/07/12 06:00 MHDA- 2015/03/05 06:00 PMCR- 2014/07/11 CRDT- 2014/07/12 06:00 PHST- 2014/02/21 00:00 [received] PHST- 2014/06/15 00:00 [accepted] PHST- 2014/07/12 06:00 [entrez] PHST- 2014/07/12 06:00 [pubmed] PHST- 2015/03/05 06:00 [medline] PHST- 2014/07/11 00:00 [pmc-release] AID - PONE-D-14-08157 [pii] AID - 10.1371/journal.pone.0102148 [doi] PST - epublish SO - PLoS One. 2014 Jul 11;9(7):e102148. doi: 10.1371/journal.pone.0102148. eCollection 2014.