title: Adipose-derived stem cells attenuate pulmonary arterial hypertension and ameliorate pulmonary arterial remodeling in monocrotaline-induced pulmonary hypertensive rats.
abstract: We investigated the effect of adipose-derived stem cells (ADSCs) transplantation effects on structural remodeling and pulmonary artery pressure in monocrotaline (MCT)-induced pulmonary hypertensive rats. In the first experiment, 32 male Sprague-Dawley (SD) rats were randomly divided into four groups (n = 8/group): 3 ADSCs treated groups and normal control (Ctrl). ADSCs were administered through the left jugular vein at 10(5), 10(6) and 10(7) cells, respectively, and a cell density of 10(6)cells/ml was shown to be optimal. The GFP-tagged ADSCs were identified in the lungs and differentiated into endothelial-like cells. In the second experiment, 96 male SD rats were randomly divided into three groups (n = 32/group): Ctrl, MCT-induced pulmonary arterial hypertension (PAH), and PAH treated with ADSCs (ADSCs). Two weeks post-MCT administration, the ADSCs group received 1 × 10(6) ADSCs via the external jugular vein. Compared to PAH rats, mean pulmonary arterial pressure was decreased in rats at 1, 2, and 3 weeks after ADSCs-treatment (18.63 ± 2.15 mmHg versus 24.53 ± 2.90 mmHg; 23.07 ± 2.84 mmHg versus 33.18 ± 2.30 mmHg; 22.98 ± 2.34 mmHg versus 36.38 ± 3.28 mmHg, p < 0.05). Meanwhile, the right heart hypertrophy index (36.2 1 ± 4.27% versus 41.01 ± 1.29%; 39.47 ± 4.02% versus 48.75 ± 2 .13%; 41.02 ± 0.9% versus 50.52 ± 1.49%, p < 0.05, respectively), ratio of wall/lumen thickness, as well as the wall/lumen area were significantly reduced in PAH rats at these time points following ADSCs-treatment, as compared with untreated PAH rats. In summary, ADSCs may colonize the pulmonary arteries, attenuate pulmonary arterial hypertension and ameliorate pulmonary arterial remodeling.
authors.affiliation: Fujian Hypertension Research Institute, the First Affiliated Hospital of Fujian Medical University , Fuzhou , P.R. China.
authors.forename: Li
authors.initials: L
authors.lastname: Luo
authors.forename: Taijie
authors.initials: T
authors.lastname: Lin
authors.forename: Suli
authors.initials: S
authors.lastname: Zheng
authors.forename: Zhenguo
authors.initials: Z
authors.lastname: Xie
authors.forename: Ming
authors.initials: M
authors.lastname: Chen
authors.forename: Guili
authors.initials: G
authors.lastname: Lian
authors.forename: Changsheng
authors.initials: C
authors.lastname: Xu
authors.forename: Huajun
authors.initials: H
authors.lastname: Wang
authors.forename: Liangdi
authors.initials: L
authors.lastname: Xie
mesh_terms: D000273:Adipose Tissue / Q000473:pathology*; D000470:Alkaloids / Q000494:pharmacology; D000818:Animals; D004195:Disease Models, Animal; D006976:Hypertension, Pulmonary / Q000209:etiology / Q000473:pathology / Q000503:physiopathology / Q000628:therapy; D008297:Male; D016686:Monocrotaline / Q000494:pharmacology; D011651:Pulmonary Artery / Q000473:pathology / Q000503:physiopathology; D051381:Rats; D017207:Rats, Sprague-Dawley; D033581:Stem Cell Transplantation / Q000379:methods*; D013234:Stem Cells; D016896:Treatment Outcome; D066253:Vascular Remodeling
chemical_list: D000470:Alkaloids; D016686:Monocrotaline
keywords: Adipose-derived stem cell; monocrotaline; pulmonary arterial hypertension; pulmonary arterial remodeling; pulmonary artery pressure