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Zhu L, Xiao R, Zhang X, Lang Y, Liu F, Yu Z, Zhang J, Su Y, Lu Y, Wang T, Luo S, Wang J, Liu ML, Dupuis J, Jing ZC, Li T, Xiong W, Hu Q. Spermine on Endothelial Extracellular Vesicles Mediates Smoking-Induced Pulmonary Hypertension Partially Through Calcium-Sensing Receptor. Arterioscler Thromb Vasc Biol 2020; 39:482-495. [PMID: 30626206 DOI: 10.1161/atvbaha.118.312280] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objective- This study aims to determine whether and how the enriched metabolites of endothelial extracellular vesicles (eEVs) are critical for cigarette smoke-induced direct injury of endothelial cells and the development of pulmonary hypertension, rarely explored in contrast to long-investigated mechanisms secondary to chronic hypoxemia. Approach and Results- Metabonomic screen of eEVs from cigarette-smoking human subjects reveals prominent elevation of spermine-a polyamine metabolite with potent agonist activity for the extracellular CaSR (calcium-sensing receptor). CaSR inhibition with the negative allosteric modulator Calhex231 or CaSR knockdown attenuates cigarette smoke-induced pulmonary hypertension in rats without emphysematous changes in lungs or chronic hypoxemia. Cigarette smoke exposure increases the generation of spermine-positive eEVs and their spermine content. Immunocytochemical staining and immunogold electron microscopy recognize the spermine enrichment not only within the cytosol but also on the outer surface of eEV membrane. The repression of spermine synthesis, the inhibitory analog of spermine, N1-dansyl-spermine, Calhex231, or CaSR knockdown profoundly suppresses eEV exposure-mobilized cytosolic calcium signaling, pulmonary artery constriction, and smooth muscle cell proliferation. Confocal imaging of immunohistochemical staining demonstrates the migration of spermine-positive eEVs from endothelium into smooth muscle cells in pulmonary arteries of cigarette smoke-exposed rats. The repression of spermine synthesis or CaSR knockout results in attenuated development of pulmonary hypertension induced by an intravascular administration of eEVs. Conclusions- Cigarette smoke enhances eEV generation with spermine enrichment at their outer surface and cytosol, which activates CaSR and subsequently causes smooth muscle cell constriction and proliferation, therefore, directly leading to the development of pulmonary hypertension.
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Affiliation(s)
- Liping Zhu
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
| | - Rui Xiao
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
| | - Xiuyun Zhang
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
| | - Yuheng Lang
- Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.).,Department of Pathology and Department of Respiratory and Critical Care Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (Y.L., T.W., W.X.)
| | - Fangbo Liu
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
| | - Zhe Yu
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
| | - Jiwei Zhang
- Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.).,Department of Pathology and Department of Respiratory and Critical Care Medicine, Union Hospital (J.Z., Y.S.)
| | - Yuan Su
- Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.).,Department of Pathology and Department of Respiratory and Critical Care Medicine, Union Hospital (J.Z., Y.S.)
| | - Yankai Lu
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
| | - Tao Wang
- Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.).,Department of Pathology and Department of Respiratory and Critical Care Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (Y.L., T.W., W.X.)
| | - Shengquan Luo
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
| | - Jian Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, China (J.W.)
| | - Ming-Lin Liu
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia (M.-L.L.).,Philadelphia Veterans Administration Medical Center (M.-L.L.)
| | - Jocelyn Dupuis
- Montreal Heart Institute, Québec, Canada (J.D.).,Department of medicine, Université de Montréal, Québec, Canada (J.D.)
| | - Zhi-Cheng Jing
- State Key Laboratory of Cardiovascular Disease, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing (Z.-C.J.)
| | - Tong Li
- Department of Heart Centre and Artificial Cell Engineering Technology Research Center of Public Health Ministry, Third Central Clinical College, Tianjin Medical University, China (T.L.)
| | - Weining Xiong
- Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.).,Department of Pathology and Department of Respiratory and Critical Care Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (Y.L., T.W., W.X.)
| | - Qinghua Hu
- From the Department of Pathophysiology, School of Basic Medicine (L.Z., R.X., X.Z., Y.L., F.L., Z.Y., S.L., Q.H.).,Key Laboratory of Pulmonary Diseases of Ministry of Health (L.Z., R.X., X.Z., Y.Lang, F.L., Z.Y., J.Z., Y.S., Y.Lu, T.W., S.L., W.X., Q.H.)
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Chen TX, Xu XY, Zhao Z, Zhao FY, Gao YM, Yan XH, Wan Y. Hydrogen peroxide is a critical regulator of the hypoxia-induced alterations of store-operated Ca2+ entry into rat pulmonary arterial smooth muscle cells. Am J Physiol Lung Cell Mol Physiol 2017; 312:L477-L487. [DOI: 10.1152/ajplung.00138.2016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 01/23/2017] [Accepted: 01/23/2017] [Indexed: 12/28/2022] Open
Abstract
To investigate the association between store-operated Ca2+ entry (SOCE) and reactive oxygen species (ROS) during hypoxia, this study determined the changes of transient receptor potential canonical 1 (TRPC1) and Orai1, two candidate proteins for store-operated Ca2+ (SOC) channels and their gate regulator, stromal interaction molecule 1 (STIM1), in a hypoxic environment and their relationship with ROS in pulmonary arterial smooth muscle cells (PASMCs). Exposure to hypoxia caused a transient Ca2+ spike and subsequent Ca2+ plateau of SOCE to be intensified in PASMCs when TRPC1, STIM1, and Orai1 were upregulated. SOCE in cells transfected with specific short hairpin RNA (shRNA) constructs was almost completely eliminated by the knockdown of TRPC1, STIM1, or Orai1 alone and was no longer affected by hypoxia exposure. Hypoxia-induced SOCE enhancement was further strengthened by PEG-SOD but was attenuated by PEG-catalase, with correlated changes to intracellular hydrogen peroxide (H2O2) levels and protein levels of TRPC1, STIM1, and Orai1. Exogenous H2O2 could mimic alterations of the interactions of STIM1 with TRPC1 and Orai1 in hypoxic cells. These findings suggest that TRPC1, STIM1, and Orai1 are essential for the initiation of SOCE in PASMCs. Hypoxia-induced ROS promoted the expression and interaction of the SOC channel molecules and their gate regulator via their converted product, H2O2.
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Affiliation(s)
- Tao-Xiang Chen
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xiao-Ya Xu
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Zhao Zhao
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Fang-Yu Zhao
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Yi-Mei Gao
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xiao-Hong Yan
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Yu Wan
- Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
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Zhu L, Song S, Pi Y, Yu Y, She W, Ye H, Su Y, Hu Q. Cumulated Ca2+ spike duration underlies Ca2+ oscillation frequency-regulated NFκB transcriptional activity. J Cell Sci 2011; 124:2591-601. [DOI: 10.1242/jcs.082727] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
[Ca2+]i oscillations drive downstream events, like transcription, in a frequency-dependent manner. Why [Ca2+]i oscillation frequency regulates transcription has not been clearly revealed. A variation in [Ca2+]i oscillation frequency apparently leads to a variation in the time duration of cumulated [Ca2+]i elevations or cumulated [Ca2+]i spike duration. By manipulating [Ca2+]i spike duration, we generated a series of [Ca2+]i oscillations with the same frequency but different cumulated [Ca2+]i spike durations, as well as [Ca2+]i oscillations with the different frequencies but the same cumulated [Ca2+]i spike duration. Molecular assays demonstrated that, when generated in ‘artificial’ models alone, under physiologically simulated conditions or repetitive pulses of agonist exposure, [Ca2+]i oscillation regulates NFκB transcriptional activity, phosphorylation of IκBα and Ca2+-dependent gene expression all in a way actually dependent on cumulated [Ca2+]i spike duration whether or not frequency varies. This study underlines that [Ca2+]i oscillation frequency regulates NFκB transcriptional activity through cumulated [Ca2+]i spike-duration-mediated IκBα phosphorylation.
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Affiliation(s)
- Liping Zhu
- Department of Pathophysiology, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
| | - Shanshan Song
- Department of Pathophysiology, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
| | - Yubo Pi
- Department of Pathophysiology, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
| | - Yang Yu
- Department of Pathophysiology, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
| | - Weibin She
- Department of Pathophysiology, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
| | - Hong Ye
- Department of Pathophysiology, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
| | - Yuan Su
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Department of Respiratory Medicine, Union Hospital, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
| | - Qinghua Hu
- Department of Pathophysiology, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- Key Laboratory of Pulmonary Diseases of Ministry of Health of China, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
- The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, People's Republic of China
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