DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in rats

Pulmonary arterial hypertension is a progressive, malignant heart disease, characterized by pulmonary arteriole remodeling and increased pulmonary vascular resistance, which eventually leads to right heart failure. This study sought to evaluate the effects of a novel long-acting phospdiesterase-5 in...

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Main Authors: Ailing Li, Zhongkai Zhu, Yangke He, Qian Dong, Dianyong Tang, Zhongzhu Chen, Wei Huang
Format: Article
Language:English
Published: Wiley 2020-11-01
Series:Pulmonary Circulation
Online Access:https://doi.org/10.1177/2045894020939842
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author Ailing Li
Zhongkai Zhu
Yangke He
Qian Dong
Dianyong Tang
Zhongzhu Chen
Wei Huang
author_facet Ailing Li
Zhongkai Zhu
Yangke He
Qian Dong
Dianyong Tang
Zhongzhu Chen
Wei Huang
author_sort Ailing Li
collection DOAJ
description Pulmonary arterial hypertension is a progressive, malignant heart disease, characterized by pulmonary arteriole remodeling and increased pulmonary vascular resistance, which eventually leads to right heart failure. This study sought to evaluate the effects of a novel long-acting phospdiesterase-5 inhibitor, namely DDCI-01, as an early intervention for monocrotaline-induced pulmonary hypertensive rats. To establish this model, 50 mg/kg of monocrotaline was intraperitoneally injected into rats. At Day 7 after monocrotaline injection, two doses of DDCI-01 (3 or 9 mg/kg/day) or tadalafil (at 3 or 9 mg/kg/day) were intragastrically administered. The rats were anesthetized with pentobarbital for hemodynamic and echocardiographic measurements, at Day 21 after monocrotaline injection. Compared to the monocrotaline group, DDCI-01 at 3 and 9 mg/kg/day (P) reduced the mean pulmonary arterial pressure (mPAP), right ventricular systolic pressure, right ventricular transverse diameter, pulmonary arterial medial wall thickness (WT%), and right ventricle hypertrophy. However, no significant difference in the indices mentioned as above was found between DDCI-01 (3 mg/kg/day) and tadalafil (3 mg/kg/day). In addition, DDCI-01 at 9 mg/kg/day resulted in lower mPAP and WT%, as well as higher cyclic guanosine monophosphate levels in the lung and plasma compared with the same dose of tadalafil (9 mg/kg/day) (all P  < 0.05). These findings suggested that DDCI-01 improved monocrotaline-induced pulmonary hypertension in rats, and a dose of DDCI-01 of 9 mg/kg/day might be more effective than the same dose of tadalafil in monocrotaline-induced pulmonary hypertension in rats.
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spelling doaj.art-0ca3262bfe6b4d9b86542bdeb0f4a6bc2022-12-22T02:40:19ZengWileyPulmonary Circulation2045-89402020-11-011010.1177/2045894020939842DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in ratsAiling Li0Zhongkai Zhu1Yangke He2Qian Dong3Dianyong Tang4Zhongzhu Chen5Wei Huang6Institute of Life Science, Chongqing Medical University, Chongqing, P.R. ChinaInstitute of Life Science, Chongqing Medical University, Chongqing, P.R. ChinaInstitute of Life Science, Chongqing Medical University, Chongqing, P.R. ChinaCardiovascular Laboratory, Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. ChinaInternation Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing, P.R. ChinaInternation Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing, P.R. ChinaInstitute of Life Science, Chongqing Medical University, Chongqing, P.R. ChinaPulmonary arterial hypertension is a progressive, malignant heart disease, characterized by pulmonary arteriole remodeling and increased pulmonary vascular resistance, which eventually leads to right heart failure. This study sought to evaluate the effects of a novel long-acting phospdiesterase-5 inhibitor, namely DDCI-01, as an early intervention for monocrotaline-induced pulmonary hypertensive rats. To establish this model, 50 mg/kg of monocrotaline was intraperitoneally injected into rats. At Day 7 after monocrotaline injection, two doses of DDCI-01 (3 or 9 mg/kg/day) or tadalafil (at 3 or 9 mg/kg/day) were intragastrically administered. The rats were anesthetized with pentobarbital for hemodynamic and echocardiographic measurements, at Day 21 after monocrotaline injection. Compared to the monocrotaline group, DDCI-01 at 3 and 9 mg/kg/day (P) reduced the mean pulmonary arterial pressure (mPAP), right ventricular systolic pressure, right ventricular transverse diameter, pulmonary arterial medial wall thickness (WT%), and right ventricle hypertrophy. However, no significant difference in the indices mentioned as above was found between DDCI-01 (3 mg/kg/day) and tadalafil (3 mg/kg/day). In addition, DDCI-01 at 9 mg/kg/day resulted in lower mPAP and WT%, as well as higher cyclic guanosine monophosphate levels in the lung and plasma compared with the same dose of tadalafil (9 mg/kg/day) (all P  < 0.05). These findings suggested that DDCI-01 improved monocrotaline-induced pulmonary hypertension in rats, and a dose of DDCI-01 of 9 mg/kg/day might be more effective than the same dose of tadalafil in monocrotaline-induced pulmonary hypertension in rats.https://doi.org/10.1177/2045894020939842
spellingShingle Ailing Li
Zhongkai Zhu
Yangke He
Qian Dong
Dianyong Tang
Zhongzhu Chen
Wei Huang
DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in rats
Pulmonary Circulation
title DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in rats
title_full DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in rats
title_fullStr DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in rats
title_full_unstemmed DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in rats
title_short DDCI-01, a novel long acting phospdiesterase-5 inhibitor, attenuated monocrotaline-induced pulmonary hypertension in rats
title_sort ddci 01 a novel long acting phospdiesterase 5 inhibitor attenuated monocrotaline induced pulmonary hypertension in rats
url https://doi.org/10.1177/2045894020939842
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