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Yang L, Tian J, Wang J, Zeng J, Wang T, Lin B, Linneman J, Li L, Niu Y, Gou D, Zhang Y. The protective role of EP300 in monocrotaline-induced pulmonary hypertension. Front Cardiovasc Med 2023; 10:1037217. [PMID: 36910531 PMCID: PMC9992637 DOI: 10.3389/fcvm.2023.1037217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 02/06/2023] [Indexed: 02/24/2023] Open
Abstract
Background Pulmonary hypertension (PH) is a lethal disease characterized by pulmonary vascular remodeling, which is mediated by the abnormal proliferation/migration of pulmonary arterial smooth muscle cells (PASMCs). Recent reports suggest the involvement of histone acetylation in PAH development and that histone deacetylase (HDAC) inhibitors have therapeutic potential for the treatment of PAH. EP300 is an acetyltransferase that plays diverse roles in cell proliferation, differentiation, and apoptosis. However, the functions of EP3000 in PH are rarely studied. Results In this work, we found that the expression of EP300 was increased in the pulmonary arteries of monocrotaline (MCT)-induced PH rats. Knockdown of EP300 by AAV-mediated shRNA exacerbated the PH, with a higher right ventricular systolic pressure (RVSP), right ventricular hypertrophy index (RVHI), and wall thickness in the pulmonary artery of MCT-induced PH rat. On the cellular level, the proliferation of PASMCs was promoted by EP300 knockdown. In addition, the expression of EP300 was increased in PASMCs by the overexpression of EGR1, while the deletion of EGR1 binding sites in the EP300 promoter region decreased the activity of EP300 promoter. Moreover, deleting the EP300 promoter region containing EGR1 binding sites using CRISPR/Cas9 abolished the upregulation of EP300 in MCT-induced rats and exacerbated MCT-induced PH. To summarize, our data indicate that EP300 upregulation mediated by EGR1 has a protective effect on MCT-induced PH. Conclusion These findings showed EP300 expression was increased in the MCT-induced PH model in rats, which could be mediated by EGR1; the EP300 also displayed the potential to provide protection from PH.
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Affiliation(s)
- Lei Yang
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Jinglin Tian
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Jun Wang
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Jie Zeng
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Ting Wang
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Boya Lin
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - John Linneman
- School of Medicine, Washington University in St. Louis, St. Louis, MO, United States
| | - Li Li
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Yanqin Niu
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Vascular Disease Research Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Yunhui Zhang
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
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Role of Long Non-Coding RNAs in Pulmonary Arterial Hypertension. Cells 2021; 10:cells10081892. [PMID: 34440661 PMCID: PMC8394897 DOI: 10.3390/cells10081892] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 12/21/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a debilitating condition of the pulmonary circulatory system that occurs in patients of all ages and if untreated, eventually leads to right heart failure and death. Despite existing medical treatment options that improve survival and quality of life, the disease remains incurable. Thus, there is an urgent need to develop novel therapies to treat this disease. Emerging evidence suggests that long non-coding RNAs (lncRNAs) play critical roles in pulmonary vascular remodeling and PAH. LncRNAs are implicated in pulmonary arterial endothelial dysfunction by modulating endothelial cell proliferation, angiogenesis, endothelial mesenchymal transition, and metabolism. LncRNAs are also involved in inducing different pulmonary arterial vascular smooth muscle cell phenotypes, such as cell proliferation, apoptosis, migration, regulation of the phenotypic switching, and cell cycle. LncRNAs are essential regulators of gene expression that affect various diseases at the chromatin, transcriptional, post-translational, and even post-translational levels. Here, we focus on the role of LncRNAs and their molecular mechanisms in the pathogenesis of PAH. We also discuss the current research challenge and potential biomarker and therapeutic potentials of lncRNAs in PAH.
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Epigenetic Targets for Oligonucleotide Therapies of Pulmonary Arterial Hypertension. Int J Mol Sci 2020; 21:ijms21239222. [PMID: 33287230 PMCID: PMC7731052 DOI: 10.3390/ijms21239222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 01/13/2023] Open
Abstract
Arterial wall remodeling underlies increased pulmonary vascular resistance and right heart failure in pulmonary arterial hypertension (PAH). None of the established vasodilator drug therapies for PAH prevents or reverse established arterial wall thickening, stiffening, and hypercontractility. Therefore, new approaches are needed to achieve long-acting prevention and reversal of occlusive pulmonary vascular remodeling. Several promising new drug classes are emerging from a better understanding of pulmonary vascular gene expression programs. In this review, potential epigenetic targets for small molecules and oligonucleotides will be described. Most are in preclinical studies aimed at modifying the growth of vascular wall cells in vitro or normalizing vascular remodeling in PAH animal models. Initial success with lung-directed delivery of oligonucleotides targeting microRNAs suggests other epigenetic mechanisms might also be suitable drug targets. Those targets include DNA methylation, proteins of the chromatin remodeling machinery, and long noncoding RNAs, all of which act as epigenetic regulators of vascular wall structure and function. The progress in testing small molecules and oligonucleotide-based drugs in PAH models is summarized.
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Zheng M, Hong W, Gao M, Yi E, Zhang J, Hao B, Liang C, Li X, Li C, Ye X, Liao B, He F, Zhou Y, Li B, Ran P. Long Noncoding RNA COPDA1 Promotes Airway Smooth Muscle Cell Proliferation in Chronic Obstructive Pulmonary Disease. Am J Respir Cell Mol Biol 2020; 61:584-596. [PMID: 31050548 DOI: 10.1165/rcmb.2018-0269oc] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Abnormal expression of long noncoding RNAs (lncRNAs) has been confirmed to be associated with many diseases, including chronic obstructive pulmonary disease (COPD). To gain better understanding of the mechanism of COPD, we investigated the lncRNA and mRNA profiles in the lung tissue of patients with COPD. According to the analysis, one of the significantly different lncRNAs, COPDA1, might participate in the occurrence and development of COPD. Lung tissues were collected from nonsmokers, smokers, or smokers with COPD for RNA sequencing. Bioinformatic analysis and cell experiments were used to define the function of COPDA1, and the effects of COPDA1 on intracellular Ca2+ concentration and cell proliferation were examined after knockdown or overexpression of COPDA1. A number of variations of lncRNAs were found in the comparison of nonsmokers, smokers, and smokers with COPD. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analyses indicated that smoking was involved in the activation of cytokines and the cell cycle, which is associated with COPD. According to the lncRNA-mRNA-coexpressing network and enrichment analysis, COPDAz1 and one of its target genes, MS4A1 (membrane-spanning 4-domains family, subfamily A) were investigated, and we discovered that the expression of MS4A1 was closely associated with lncRNA COPDA1 expression in human bronchial smooth muscle cells (HBSMCs). Further study showed that lncRNA COPDA1 upregulated the expression of MS4A1 to increase store-operated calcium entry in the HBSMCs, resulting in the promotion of the proliferation of smooth muscle cells as well as of airway remodeling. COPDA1 might be involved in the regulation of certain signaling pathways in COPD, might promote the proliferation of HBSMCs, and might also be involved in facilitating airway remodeling.
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Affiliation(s)
- Mengning Zheng
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China.,Department of Respiratory and Critical Care Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Wei Hong
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Mi Gao
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Erkang Yi
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Jiahuan Zhang
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Binwei Hao
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Chunxiao Liang
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Xing Li
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Chenglong Li
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Xiuqin Ye
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Baoling Liao
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Fang He
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,School of Basic Medical Sciences, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yumin Zhou
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
| | - Bing Li
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Pixin Ran
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guanzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
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Wu Y, Zhang Z, Ren S, Li K, Ning Q, Jiang X. Aberrant expression of long noncoding RNAs in the serum and myocardium of spontaneous hypertensive rats. Mol Biol Rep 2019; 46:6399-6404. [PMID: 31549370 DOI: 10.1007/s11033-019-05086-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 09/18/2019] [Indexed: 10/25/2022]
Abstract
Circulating long noncoding RNAs as biomarkers of diseases have attracted increasing attention recently. However, circulating lncRNAs in hypertension is still unexplored niche. The levels of lncRNAs GAS5, NR024118, MRAK134679, AX765700 and MRNR026574 were measured in the serum and myocardium of hypertensive rats and normal controls with real time PCR. The levels of GAS5 were significantly higher both in the myocardium (P = 0.0067) and serum (P < 0.0001) of hypertensive rats compared with controls. The levels of NR024118 were remarkably higher in the myocardium of hypertensive rats (P = 0.0202) while the levels of serum NR024118 were not statistically significant in two groups (P = 0.6926). The levels of serum AX765700 (P = 0.0644) and cardiac AX765700 (P = 0.1938) were not statistically significant in hypertensive rats and controls. The levels of MRAK134679 were not different in the myocardium of two groups (P = 0.1692) and were too low in the serum to be detected. The levels of MRNR026574 were significantly higher in the myocardium of hypertensive rats compared with controls (P < 0.0001) and were too low in the serum to be detected. In conclusions, the levels of GAS5, NR024118 and MRNR026574 were increased in the myocardium of hypertensive rats, suggesting that they participate in the pathogenesis of hypertensive cardiac remodeling. Although, the levels of GAS5 in the serum and heart tissue were both significantly increased in SH rats, the potential biomarker capacity of GAS5 for HT needs to be further explored on larger human cohorts.
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Affiliation(s)
- Yuanjun Wu
- Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Zheng Zhang
- Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Shufan Ren
- Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Kexin Li
- Health Science Center, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Qilan Ning
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Xiaoying Jiang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an, 710061, Shaanxi, China.
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