Xi Zheng, Fuxiang Su, Ze-Chun Kang, Jingyuan Li, Chenyang Zhang, Yujia Zhang, Liying Hao
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引用次数: 2
Abstract
Myocardial hypertrophy is a pathological feature of many heart diseases. This is a complex process involving all types of cells in the heart and interactions with circulating cells. This study is aimed at identifying the differentially expressed proteins (DEPs) in myocardial hypertrophy rats induced by isoprenaline (ISO) and treated with novel peptide Athycaltide-1 (ATH-1) and exploring the mechanism of its improvement. ITRAQ was performed to compare the three different heart states in control group, ISO group, and ATH-1 group. Pairwise comparison showed that there were 121 DEPs in ISO/control (96 upregulated and 25 downregulated), 47 DEPs in ATH-1/ISO (27 upregulated and 20 downregulated), and 116 DEPs in ATH-1/control (77 upregulated and 39 downregulated). Protein network analysis was then performed using the STRING software. Functional analysis revealed that Hspa1 protein, oxidative stress, and MAPK signaling pathway were significantly involved in the occurrence and development of myocardial hypertrophy, which was further validated by vivo model. It is proved that ATH-1 can reduce the expression of Hspa1 protein and the level of oxidative stress in hypertrophic myocardium and further inhibit the phosphorylation of p38 MAPK, JNK, and ERK1/2.
期刊介绍:
Cardiovascular Therapeutics (formerly Cardiovascular Drug Reviews) is a peer-reviewed, Open Access journal that publishes original research and review articles focusing on cardiovascular and clinical pharmacology, as well as clinical trials of new cardiovascular therapies. Articles on translational research, pharmacogenomics and personalized medicine, device, gene and cell therapies, and pharmacoepidemiology are also encouraged.
Subject areas include (but are by no means limited to):
Acute coronary syndrome
Arrhythmias
Atherosclerosis
Basic cardiac electrophysiology
Cardiac catheterization
Cardiac remodeling
Coagulation and thrombosis
Diabetic cardiovascular disease
Heart failure (systolic HF, HFrEF, diastolic HF, HFpEF)
Hyperlipidemia
Hypertension
Ischemic heart disease
Vascular biology
Ventricular assist devices
Molecular cardio-biology
Myocardial regeneration
Lipoprotein metabolism
Radial artery access
Percutaneous coronary intervention
Transcatheter aortic and mitral valve replacement.