PMID- 21403100 OWN - NLM STAT- MEDLINE DCOM- 20110531 LR - 20220410 IS - 1524-4539 (Electronic) IS - 0009-7322 (Print) IS - 0009-7322 (Linking) VI - 123 IP - 12 DP - 2011 Mar 29 TI - Long-term cardiac pro-B-type natriuretic peptide gene delivery prevents the development of hypertensive heart disease in spontaneously hypertensive rats. PG - 1297-305 LID - 10.1161/CIRCULATIONAHA.110.981720 [doi] AB - BACKGROUND: Diastolic dysfunction associated with high blood pressure (BP) leads to cardiac remodeling and fibrosis and progression to congestive heart failure. B-type natriuretic peptide (BNP) has BP-lowering, antifibrotic, and antihypertrophic properties, which makes BNP an attractive agent for attenuating the adverse cardiac remodeling associated with hypertension. In the current study, we tested the effects of sustained cardiac proBNP gene delivery on BP, cardiac function, and remodeling in spontaneously hypertensive rats (SHR). METHODS AND RESULTS: We used the myocardium-tropic adeno-associated virus serotype 9 (AAV9) vector to achieve continuously enhanced cardiac rat proBNP expression. In SHR, a single systemic administration of AAV9 vector allowed long-term cardiac BNP overexpression, resulting in reductions in systolic and diastolic BP for 9 months after injection. Left ventricular (LV) thickness, LV end-systolic dimensions, and LV mass were reduced, whereas ejection fraction was significantly increased, in BNP-treated compared with untreated SHR. Circumferential systolic strain and strain rate of the early phase of diastole were improved in BNP-treated compared with untreated SHR. Noncardiac overexpression of BNP via AAV2 vector was not associated with changes in BP and plasma BNP in SHR. Furthermore, normal Wistar rats injected with AAV9 proBNP vector showed significantly reduced heart weights 4 weeks after injection without BP reduction. CONCLUSIONS: AAV9 vector facilitates sustained cardiac proBNP overexpression and improves LV function in hypertensive heart disease. Long-term proBNP delivery improved both systolic and diastolic function. The effects on cardiac structure and function occurred independently of BP-lowering effects in normal Wistar rats. FAU - Cataliotti, Alessandro AU - Cataliotti A AD - Molecular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA. ikeda.yasuhiro@mayo.edu FAU - Tonne, Jason M AU - Tonne JM FAU - Bellavia, Diego AU - Bellavia D FAU - Martin, Fernando L AU - Martin FL FAU - Oehler, Elise A AU - Oehler EA FAU - Harders, Gerald E AU - Harders GE FAU - Campbell, Jarryd M AU - Campbell JM FAU - Peng, Kaw-Whye AU - Peng KW FAU - Russell, Stephen J AU - Russell SJ FAU - Malatino, Lorenzo S AU - Malatino LS FAU - Burnett, John C Jr AU - Burnett JC Jr FAU - Ikeda, Yasuhiro AU - Ikeda Y LA - eng GR - R01 HL036634-24/HL/NHLBI NIH HHS/United States GR - P01 HL076611-04/HL/NHLBI NIH HHS/United States GR - R01 HL036634/HL/NHLBI NIH HHS/United States GR - R01 HL098502/HL/NHLBI NIH HHS/United States GR - R01 HL36634/HL/NHLBI NIH HHS/United States GR - P01 HL076611/HL/NHLBI NIH HHS/United States GR - P01 HL76611/HL/NHLBI NIH HHS/United States GR - R01 HL098502-01A1/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20110314 PL - United States TA - Circulation JT - Circulation JID - 0147763 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Protein Precursors) RN - 0 (brain-derived neurotrophic factor precursor) SB - IM MH - Adenoviridae/genetics MH - Animals MH - Blood Pressure/genetics MH - Brain-Derived Neurotrophic Factor/*genetics MH - Echocardiography MH - Genetic Therapy/*methods MH - Heart Failure/diagnostic imaging/genetics/*prevention & control MH - Hypertension/genetics/*therapy MH - Plasmids/genetics MH - Protein Precursors/*genetics MH - Rats MH - Rats, Inbred SHR MH - Rats, Wistar MH - Ventricular Remodeling/genetics PMC - PMC3081597 MID - NIHMS278591 EDAT- 2011/03/16 06:00 MHDA- 2011/06/01 06:00 PMCR- 2012/03/29 CRDT- 2011/03/16 06:00 PHST- 2011/03/16 06:00 [entrez] PHST- 2011/03/16 06:00 [pubmed] PHST- 2011/06/01 06:00 [medline] PHST- 2012/03/29 00:00 [pmc-release] AID - CIRCULATIONAHA.110.981720 [pii] AID - 10.1161/CIRCULATIONAHA.110.981720 [doi] PST - ppublish SO - Circulation. 2011 Mar 29;123(12):1297-305. doi: 10.1161/CIRCULATIONAHA.110.981720. Epub 2011 Mar 14.