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Wang Z, Zhang YX, Shi JZ, Yan Y, Zhao LL, Kou JJ, He YY, Xie XM, Zhang SJ, Pang XB. RNA m6A methylation and regulatory proteins in pulmonary arterial hypertension. Hypertens Res 2024; 47:1273-1287. [PMID: 38438725 DOI: 10.1038/s41440-024-01607-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/12/2023] [Accepted: 01/27/2024] [Indexed: 03/06/2024]
Abstract
m6A (N6‑methyladenosine) is the most common and abundant apparent modification in mRNA of eukaryotes. The modification of m6A is regulated dynamically and reversibly by methyltransferase (writer), demethylase (eraser), and binding protein (reader). It plays a significant role in various processes of mRNA metabolism, including regulation of transcription, maturation, translation, degradation, and stability. Pulmonary arterial hypertension (PAH) is a malignant cardiopulmonary vascular disease characterized by abnormal proliferation of pulmonary artery smooth muscle cells. Despite the existence of several effective and targeted therapies, there is currently no cure for PAH and the prognosis remains poor. Recent studies have highlighted the crucial role of m6A modification in cardiovascular diseases. Investigating the role of RNA m6A methylation in PAH could provide valuable insights for drug development. This review aims to explore the mechanism and function of m6A in the pathogenesis of PAH and discuss the potential targeting of RNA m6A methylation modification as a treatment for PAH.
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Affiliation(s)
- Zhe Wang
- School of Pharmacy, Henan University, Henan, China
| | - Yi-Xuan Zhang
- Department of Anesthesiology, Huaihe Hospital of Henan University, Henan, China
| | - Jun-Zhuo Shi
- School of Pharmacy, Henan University, Henan, China
| | - Yi Yan
- Heart Center and Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, National Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lu-Ling Zhao
- School of Pharmacy, Henan University, Henan, China
| | - Jie-Jian Kou
- Department of Pharmacy, Huaihe Hospital of Henan University, Henan, China
| | - Yang-Yang He
- School of Pharmacy, Henan University, Henan, China
| | - Xin-Mei Xie
- School of Pharmacy, Henan University, Henan, China.
| | - Si-Jin Zhang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.
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Liu B, Peng Y, Yi D, Machireddy N, Dong D, Ramirez K, Dai J, Vanderpool R, Zhu MM, Dai Z, Zhao YY. Endothelial PHD2 deficiency induces nitrative stress via suppression of caveolin-1 in pulmonary hypertension. Eur Respir J 2022; 60:2102643. [PMID: 35798360 PMCID: PMC9791795 DOI: 10.1183/13993003.02643-2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/24/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Nitrative stress is a characteristic feature of the pathology of human pulmonary arterial hypertension. However, the role of nitrative stress in the pathogenesis of obliterative vascular remodelling and severe pulmonary arterial hypertension remains largely unclear. METHOD Our recently identified novel mouse model (Egln1Tie2Cre, Egln1 encoding prolyl hydroxylase 2 (PHD2)) has obliterative vascular remodelling and right heart failure, making it an excellent model to use in this study to examine the role of nitrative stress in obliterative vascular remodelling. RESULTS Nitrative stress was markedly elevated whereas endothelial caveolin-1 (Cav1) expression was suppressed in the lungs of Egln1Tie2Cre mice. Treatment with a superoxide dismutase mimetic, manganese (III) tetrakis (1-methyl-4-pyridyl) porphyrin pentachloride or endothelial Nos3 knockdown using endothelial cell-targeted nanoparticle delivery of CRISPR-Cas9/guide RNA plasmid DNA inhibited obliterative pulmonary vascular remodelling and attenuated severe pulmonary hypertension in Egln1Tie2Cre mice. Genetic restoration of Cav1 expression in Egln1Tie2Cre mice normalised nitrative stress, reduced pulmonary hypertension and improved right heart function. CONCLUSION These data suggest that suppression of Cav1 expression secondary to PHD2 deficiency augments nitrative stress through endothelial nitric oxide synthase activation, which contributes to obliterative vascular remodelling and severe pulmonary hypertension. Thus, a reactive oxygen/nitrogen species scavenger might have therapeutic potential for the inhibition of obliterative vascular remodelling and severe pulmonary arterial hypertension.
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Affiliation(s)
- Bin Liu
- Division of Pulmonary, Critical Care and Sleep, Dept of Internal Medicine, University of Arizona, Phoenix, AZ, USA
- Translational Cardiovascular Research Center, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Yi Peng
- Program for Lung and Vascular Biology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Section for Injury Repair and Regeneration Research, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Division of Critical Care, Dept of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Dan Yi
- Division of Pulmonary, Critical Care and Sleep, Dept of Internal Medicine, University of Arizona, Phoenix, AZ, USA
- Translational Cardiovascular Research Center, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Narsa Machireddy
- Program for Lung and Vascular Biology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Section for Injury Repair and Regeneration Research, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Division of Critical Care, Dept of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Daoyin Dong
- Program for Lung and Vascular Biology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Section for Injury Repair and Regeneration Research, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Division of Critical Care, Dept of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Karina Ramirez
- Division of Pulmonary, Critical Care and Sleep, Dept of Internal Medicine, University of Arizona, Phoenix, AZ, USA
- Translational Cardiovascular Research Center, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Jingbo Dai
- Program for Lung and Vascular Biology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Section for Injury Repair and Regeneration Research, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Division of Critical Care, Dept of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Rebecca Vanderpool
- College of Medicine Division of Cardiovascular Medicine, The Ohio State University, Columbus, OH, USA
| | - Maggie M Zhu
- Program for Lung and Vascular Biology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Section for Injury Repair and Regeneration Research, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Division of Critical Care, Dept of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Zhiyu Dai
- Division of Pulmonary, Critical Care and Sleep, Dept of Internal Medicine, University of Arizona, Phoenix, AZ, USA
- Translational Cardiovascular Research Center, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
- Zhiyu Dai and You-Yang Zhao contributed equally to this article as lead authors and supervised the work
| | - You-Yang Zhao
- Program for Lung and Vascular Biology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Section for Injury Repair and Regeneration Research, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Division of Critical Care, Dept of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Dept of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Dept of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Zhiyu Dai and You-Yang Zhao contributed equally to this article as lead authors and supervised the work
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Ji L, Su S, Xin M, Zhang Z, Nan X, Li Z, Lu D. Luteolin ameliorates hypoxia-induced pulmonary hypertension via regulating HIF-2α-Arg-NO axis and PI3K-AKT-eNOS-NO signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 104:154329. [PMID: 35843187 DOI: 10.1016/j.phymed.2022.154329] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/23/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Pulmonary hypertension (PH) is a devastating disease with poor prognosis and high mortality. Hypoxia induced pulmonary hypertension (HPH) is a persistent threat to human health, especially to people who live on high altitude plateau. Pulmonary vascular endothelial cell is involved in numerous pathophysiological processes, including in vasoconstriction, oxidative stress, cell growth and differentiation. Endothelial cells (ECs) are the first layer to be exposed to changed oxygen levels and hypoxia could lead to ECs dysfunction. Endothelial-derived nitric oxide (NO) is the most important bioactive molecule, which could regulate endothelial homeostasis. PH pathophysiology has been linked to the disruption of NO pathways. PURPOSE Luteolin is a kind of plant active ingredient with multiple pharmacological activities. The purpose of this study is to detect the effect of luteolin on HPH with in vivo, ex vivo and in vitro analyses and to further elucidate luteolin's pharmaceutical mechanism with NO related signaling pathway regulation. METHODS Hypobaric chamber was used to establish HPH animal model. Rats were intragastrically administrated luteolin for 28 days. Then hemodynamic indexes, histopathological changes, pulmonary artery endothelial function, NO content and arginase activity in lung tissue, NO related pathway proteins expression were measured to evaluate the effect of luteolin on HPH. PAECs were treated with 1% O2 and incubated with or without luteolin. PAECs vitality, NO content in cells supernatant, and NO related pathway proteins expression were tested to reveal the protective mechanism of luteolin. RESULTS Luteolin decreased mean pulmonary hypertension of HPH rats, alleviated right ventricular and pulmonary vascular remodeling. Immunofluorescence staining (vWF), isolated perfused/ventilated rat lung experiment indicated that luteolin protected pulmonary vascular endothelial function of HPH rats. Luteolin increased NO content in PAECs supernatant while decreased NO level in lung tissues of HPH rats. Further, it was demonstrated that luteolin inhibited HIF-2α-Arg axis in PAECs and HPH rats. PI3K-AKT-eNOS signaling pathway was upregulated in PAECs, but which was downregulated in lung tissues of HPH rats. Pharmacological effect of luteolin was equivalent or better than sildenafil. CONCLUSION Luteolin ameliorated HPH in rats by protecting pulmonary vascular endothelial function via regulating HIF-2α-Arg-NO axis and PI3K-AKT-eNOS-NO signaling pathway. This study may provide a novel perspective and approach to alleviate the devastating disease of HPH.
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Affiliation(s)
- Lei Ji
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China; Qinghai Provincial People's Hospital, Xining, China
| | - Shanshan Su
- Technical Center of Xining Customs, Key Laboratory of Food Safety Research in Qinghai Province, Xining, China
| | - Mingyuan Xin
- Medical College, Qinghai University, Xining, China
| | - Zhaoxia Zhang
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China
| | - Xingmei Nan
- Medical College, Qinghai University, Xining, China
| | - Zhanqiang Li
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China.
| | - Dianxiang Lu
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China.
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Wang SC, Chang MY, Shiau JP, Farooqi AA, Huang YH, Tang JY, Chang HW. Antiproliferation- and Apoptosis-Inducible Effects of a Novel Nitrated [6,6,6]Tricycle Derivative (SK2) on Oral Cancer Cells. Molecules 2022; 27:1576. [PMID: 35268676 PMCID: PMC8911617 DOI: 10.3390/molecules27051576] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/19/2022] [Accepted: 02/25/2022] [Indexed: 12/01/2022] Open
Abstract
The benzo-fused dioxabicyclo[3.3.1]nonane core is the central framework in several natural products. Using this core, we had developed a novel nitrated [6,6,6]tricycle-derived compound containing an n-butyloxy group, namely, SK2. The anticancer potential of SK2 was not assessed. This study aimed to determine the antiproliferative function and investigated possible mechanisms of SK2 acting on oral cancer cells. SK2 preferentially killed oral cancer cells but caused no harmful effect on non-malignant oral cells. After the SK2 exposure of oral cancer cells, cells in the sub-G1 phase accumulated. This apoptosis-like outcome of SK2 treatment was validated to be apoptosis via observing an increasing annexin V population. Mechanistically, apoptosis signalers such as pancaspase, caspases 8, caspase 9, and caspase 3 were activated by SK2 in oral cancer cells. SK2 induced oxidative-stress-associated changes. Furthermore, SK2 caused DNA damage (γH2AX and 8-hydroxy-2'-deoxyguanosine). In conclusion, a novel nitrated [6,6,6]tricycle-derived compound, SK2, exhibits a preferential antiproliferative effect on oral cancer cells, accompanied by apoptosis, oxidative stress, and DNA damage.
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Affiliation(s)
- Sheng-Chieh Wang
- Department of Biomedical Science and Environmental Biology, Ph.D. Program in Life Sciences, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Jun-Ping Shiau
- Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
- Division of Breast Surgery and Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Ammad Ahmad Farooqi
- Institute of Biomedical and Genetic Engineering (IBGE), Islamabad 54000, Pakistan;
| | - Yu-Hsiang Huang
- Post-Graduate Year Training (PGY), Department of Clinical Education and Training, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Jen-Yang Tang
- School of Post-Baccalaureate Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaoshiung Medical University, Kaohsiung 80708, Taiwan
| | - Hsueh-Wei Chang
- Department of Biomedical Science and Environmental Biology, Ph.D. Program in Life Sciences, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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Evans CE, Cober ND, Dai Z, Stewart DJ, Zhao YY. Endothelial cells in the pathogenesis of pulmonary arterial hypertension. Eur Respir J 2021; 58:13993003.03957-2020. [PMID: 33509961 DOI: 10.1183/13993003.03957-2020] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/13/2021] [Indexed: 12/11/2022]
Abstract
Pulmonary arterial hypertension (PAH) is a devastating disease that involves pulmonary vasoconstriction, small vessel obliteration, large vessel thickening and obstruction, and development of plexiform lesions. PAH vasculopathy leads to progressive increases in pulmonary vascular resistance, right heart failure and, ultimately, premature death. Besides other cell types that are known to be involved in PAH pathogenesis (e.g. smooth muscle cells, fibroblasts and leukocytes), recent studies have demonstrated that endothelial cells (ECs) have a crucial role in the initiation and progression of PAH. The EC-specific role in PAH is multi-faceted and affects numerous pathophysiological processes, including vasoconstriction, inflammation, coagulation, metabolism and oxidative/nitrative stress, as well as cell viability, growth and differentiation. In this review, we describe how EC dysfunction and cell signalling regulate the pathogenesis of PAH. We also highlight areas of research that warrant attention in future studies, and discuss potential molecular signalling pathways in ECs that could be targeted therapeutically in the prevention and treatment of PAH.
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Affiliation(s)
- Colin E Evans
- Program for Lung and Vascular Biology, Section of Injury Repair and Regeneration, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.,Dept of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Nicholas D Cober
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Dept of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Zhiyu Dai
- Program for Lung and Vascular Biology, Section of Injury Repair and Regeneration, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.,Dept of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Dept of Internal Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Duncan J Stewart
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Dept of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - You-Yang Zhao
- Program for Lung and Vascular Biology, Section of Injury Repair and Regeneration, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA .,Dept of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Dept of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Dept of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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