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Sun P, Li Y, Li Y, Ji H, Mang G, Fu S, Jiang S, Choi S, Wang X, Tong Z, Wang C, Gao F, Wan P, Chen S, Li Y, Zhao P, Leng X, Zhang M, Tian J. Low-intensity pulsed ultrasound protects from inflammatory dilated cardiomyopathy through inciting extracellular vesicles. Cardiovasc Res 2024:cvae096. [PMID: 38696702 DOI: 10.1093/cvr/cvae096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/30/2023] [Accepted: 05/01/2024] [Indexed: 05/04/2024] Open
Abstract
AIMS CD4+ T cells are activated during inflammatory dilated cardiomyopathy (iDCM) development to induce immunogenic responses that damage the myocardium. Low-intensity pulsed ultrasound (LIPUS), a novel physiotherapy for cardiovascular diseases, has recently been shown to modulate inflammatory responses. However, its efficacy in iDCM remains unknown. Here, we investigated whether LIPUS could improve the severity of iDCM by orchestrating immune responses and explored its therapeutic mechanisms. METHODS AND RESULTS In iDCM mice, LIPUS treatment reduced cardiac remodelling and dysfunction. Additionally, CD4+ T cell inflammatory responses were suppressed. LIPUS increased Treg cells while decreasing Th17 cells. LIPUS mechanically stimulates endothelial cells, resulting in increased secretion of extracellular vesicles (EVs), which are taken up by CD4+ T cells and alter their differentiation and metabolic patterns. Moreover, EVs selectively loaded with microRNA (miR)-99a are responsible for the therapeutic effects of LIPUS. The hnRNPA2B1 translocation from the nucleus to the cytoplasm and binding to caveolin-1 and miR-99a confirmed the upstream mechanism of miR-99a transport. This complex is loaded into EVs and taken up by CD4+ T cells, which further suppress mTOR and TRIB2 expression to modulate cellular differentiation. CONCLUSION Our findings revealed that LIPUS uses an EV-dependent molecular mechanism to protect against iDCM progression. Therefore, LIPUS is a promising new treatment option for iDCM.
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Affiliation(s)
- Ping Sun
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yi Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
| | - Yifei Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Huan Ji
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
| | - Ge Mang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Shuai Fu
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Shuangquan Jiang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
| | - Stephen Choi
- SXULTRASONIC Ltd. Kerry Rehabilitation Medicine Research Institute, Shenzhen, Guangdong Province, China
| | - Xiaoqi Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Zhonghua Tong
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Chao Wang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Fei Gao
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Pingping Wan
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Shuang Chen
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - You Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Peng Zhao
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Xiaoping Leng
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Jiawei Tian
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- Ultrasound Molecular Imaging Joint Laboratory of Heilongjiang Province, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
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2
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Li W, Chi D, Ju S, Zhao X, Li X, Zhao J, Xie H, Li Y, Jin J, Mang G, Dong Z. Platelet factor 4 promotes deep venous thrombosis by regulating the formation of neutrophil extracellular traps. Thromb Res 2024; 237:52-63. [PMID: 38547695 DOI: 10.1016/j.thromres.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 02/14/2024] [Accepted: 03/04/2024] [Indexed: 04/29/2024]
Abstract
The presence of neutrophil extracellular traps (NETs) in thrombotic diseases has been extensively studied. The exact mechanism of NET formation in deep venous thrombosis (DVT) has not been largely studied. This study is aimed to explore the role of NETs and their interaction with platelet factor 4 (PF4) in DVT. In plasma samples from 51 healthy volunteers and 52 DVT patients, NET markers and PF4 were measured using enzyme-linked immunosorbent assays (ELISA). NET generation in blood samples from healthy subjects and DVT patients was analyzed by confocal microscopy and flow cytometry. The plasma levels of NETs were significantly elevated in DVT patients, and neutrophils from patients showed a stronger ability to generate NETs after treatment. PF4 was upregulated in plasma samples from DVT patients and mediated NET formation. NETs enhanced procoagulant (PCA) via tissue factor and activating platelets to induce procoagulant activity. In addition, we established an inferior vena cava ligation (IVC) model to examine the role of NETs in thrombogenicity in DVT. In conclusion, NET formation was mediated by PF4 and enhance the procoagulant activity in DVT.
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Affiliation(s)
- Wenqiang Li
- Department of Vascular and Wound Center, Jinshan Hospital of Fudan University, Shanghai, China.
| | - Decai Chi
- Department of Vascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shuai Ju
- Department of Vascular and Wound Center, Jinshan Hospital of Fudan University, Shanghai, China
| | - Xinyi Zhao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoyan Li
- Department of Vascular and Wound Center, Jinshan Hospital of Fudan University, Shanghai, China
| | - Junjie Zhao
- Department of General Surgery, The Fourth Hospital of Changsha City, Changsha, China
| | - Huiqi Xie
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yao Li
- Department of Vascular and Wound Center, Jinshan Hospital of Fudan University, Shanghai, China
| | - Jiaqi Jin
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Ge Mang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Zhihui Dong
- Department of Vascular and Wound Center, Jinshan Hospital of Fudan University, Shanghai, China; Department of Vascular Surgery, Zhongshan hospital of Fudan University, Shanghai, China.
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3
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Fang H, Bo Y, Hao Z, Mang G, Jin J, Wang H. A promising frontier: targeting NETs for stroke treatment breakthroughs. Cell Commun Signal 2024; 22:238. [PMID: 38654328 PMCID: PMC11036592 DOI: 10.1186/s12964-024-01563-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/07/2024] [Indexed: 04/25/2024] Open
Abstract
Stroke is a prevalent global acute cerebrovascular condition, with ischaemic stroke being the most frequently occurring type. After a stroke, neutrophils accumulate in the brain and subsequently generate and release neutrophil extracellular traps (NETs). The accumulation of NETs exacerbates the impairment of the blood‒brain barrier (BBB), hampers neovascularization, induces notable neurological deficits, worsens the prognosis of stroke patients, and can facilitate the occurrence of t-PA-induced cerebral haemorrhage subsequent to ischaemic stroke. Alternative approaches to pharmacological thrombolysis or endovascular thrombectomy are being explored, and targeting NETs is a promising treatment that warrants further investigation.
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Affiliation(s)
- Huijie Fang
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yunfei Bo
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Zhongfei Hao
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Ge Mang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiaqi Jin
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
| | - Hongjun Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
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4
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Gao X, Zhao X, Li J, Liu C, Li W, Zhao J, Li Z, Wang N, Wang F, Dong J, Yan X, Zhang J, Hu X, Jin J, Mang G, Ma R, Hu S. Neutrophil extracellular traps mediated by platelet microvesicles promote thrombosis and brain injury in acute ischemic stroke. Cell Commun Signal 2024; 22:50. [PMID: 38233928 PMCID: PMC10795390 DOI: 10.1186/s12964-023-01379-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/01/2023] [Indexed: 01/19/2024] Open
Abstract
AIMS Neutrophil extracellular traps (NETs) have been implicated in thrombotic diseases. There is no definitive explanation for how NETs form during acute ischemic strokes (AIS). The purpose of our study was to investigate the potential mechanism and role of NETs formation in the AIS process. METHODS As well as 45 healthy subjects, 45 patients with AIS had ELISA tests performed to detect NET markers. Expression of high-mobility group box 1 (HMGB1) on platelet microvesicles (PMVs) was analyzed by flow cytometry in healthy subjects and AIS patients' blood samples. We established middle cerebral artery occlusion (MCAO) mice model to elucidate the interaction between PMPs and NETs. RESULTS A significant elevation in NET markers was found in patient plasma in AIS patients, and neutrophils generated more NETs from patients' neutrophils. HMGB1 expression was upregulated on PMVs from AIS patients and induced NET formation. NETs enhanced Procoagulant activity (PCA) through tissue factor and via platelet activation. Targeting lactadherin in genetical and in pharmacology could regulate the formation of NETs in MCAO model. CONCLUSIONS NETs mediated by PMVs derived HMGB1 exacerbate thrombosis and brain injury in AIS. Video Abstract.
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Affiliation(s)
- Xin Gao
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinyi Zhao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Jiacheng Li
- The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Chang Liu
- The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Wenqiang Li
- Department of Vascular Surgery, Jinshan Hospital of Fudan University, Shanghai, China
| | - Junjie Zhao
- Department of General Surgery, Changsha Fourth Hospital, Changsha, China
| | - Zhixi Li
- The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Nan Wang
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Fang Wang
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiawei Dong
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiuwei Yan
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiheng Zhang
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xueyan Hu
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jiaqi Jin
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
| | - Ge Mang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
- The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang Province, China.
| | - Ruishuang Ma
- Department of Radiotherapy and Chemotherapy, The First Affiliated Hospital of Ningbo University, Ningbo, China.
- Department of Radiotherapy and Chemotherapy, Ningbo First Hospital of Ningbo, Ningbo, 315000, China.
| | - Shaoshan Hu
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
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5
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Jin J, Wang F, Tian J, Zhao X, Dong J, Wang N, Liu Z, Zhao H, Li W, Mang G, Hu S. Neutrophil extracellular traps contribute to coagulopathy after traumatic brain injury. JCI Insight 2023; 8:141110. [PMID: 36802340 PMCID: PMC10070118 DOI: 10.1172/jci.insight.141110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 02/17/2023] [Indexed: 02/23/2023] Open
Abstract
Coagulopathy contributes to the majority of deaths and disabilities associated with traumatic brain injury (TBI). Whether neutrophil extracellular traps (NETs) contribute to an abnormal coagulation state in the acute phase of TBI remains unknown. Our objectives were to demonstrate the definitive role of NETs in coagulopathy in TBI. We detected NET markers in 128 TBI patients and 34 healthy individuals. Neutrophil-platelet aggregates were detected in blood samples from TBI patients and healthy individuals using flow cytometry and staining for CD41 and CD66b. Endothelial cells were incubated with isolated NETs and we detected the expression of vascular endothelial cadherin, syndecan-1, thrombomodulin, von Willebrand factor, phosphatidylserine, and tissue factor. In addition, we established a TBI mouse model to determine the potential role of NETs in TBI-associated coagulopathy. NET generation was mediated by high mobility group box 1 (HMGB1) from activated platelets and contributed to procoagulant activity in TBI. Furthermore, coculture experiments indicated that NETs damaged the endothelial barrier and caused these cells to assume a procoagulant phenotype. Moreover, the administration of DNase I before or after brain trauma markedly reduced coagulopathy and improved the survival and clinical outcome of mice with TBI.
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Affiliation(s)
- Jiaqi Jin
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Fang Wang
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiawei Tian
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinyi Zhao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiawei Dong
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Nan Wang
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhihui Liu
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongtao Zhao
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wenqiang Li
- Department of Vascular Surgery, Jinshan Hospital of Fudan University, Shanghai, China
| | - Ge Mang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shaoshan Hu
- Department of Neurosurgery, Cancer Center, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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6
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Wang N, Wang W, Wang X, Mang G, Chen J, Yan X, Tong Z, Yang Q, Wang M, Chen L, Sun P, Yang Y, Cui J, Yang M, Zhang Y, Wang D, Wu J, Zhang M, Yu B. Histone Lactylation Boosts Reparative Gene Activation Post-Myocardial Infarction. Circ Res 2022; 131:893-908. [PMID: 36268709 DOI: 10.1161/circresaha.122.320488] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Inflammation resolution and cardiac repair initiation after myocardial infarction (MI) require timely activation of reparative signals. Histone lactylation confers macrophage homeostatic gene expression signatures via transcriptional regulation. However, the role of histone lactylation in the repair response post-MI remains unclear. We aimed to investigate whether histone lactylation induces reparative gene expression in monocytes early and remotely post-MI. METHODS Single-cell transcriptome data indicated that reparative genes were activated early and remotely in bone marrow and circulating monocytes before cardiac recruitment. Western blotting and immunofluorescence staining revealed increases in histone lactylation levels, including the previously identified histone H3K18 lactylation in monocyte-macrophages early post-MI. Through joint CUT&Tag and RNA-sequencing analyses, we identified Lrg1, Vegf-a, and IL-10 as histone H3K18 lactylation target genes. The increased modification and expression levels of these target genes post-MI were verified by chromatin immunoprecipitation-qPCR and reverse transcription-qPCR. RESULTS We demonstrated that histone lactylation regulates the anti-inflammatory and pro-angiogenic dual activities of monocyte-macrophages by facilitating reparative gene transcription and confirmed that histone lactylation favors a reparative environment and improves cardiac function post-MI. Furthermore, we explored the potential positive role of monocyte histone lactylation in reperfused MI. Mechanistically, we provided new evidence that monocytes undergo metabolic reprogramming in the early stage of MI and demonstrated that dysregulated glycolysis and MCT1 (monocarboxylate transporter 1)-mediated lactate transport promote histone lactylation. Finally, we revealed the catalytic effect of IL (interleukin)-1β-dependent GCN5 (general control non-depressible 5) recruitment on histone H3K18 lactylation and elucidated its potential role as an upstream regulatory element in the regulation of monocyte histone lactylation and downstream reparative gene expression post-MI. CONCLUSIONS Histone lactylation promotes early remote activation of the reparative transcriptional response in monocytes, which is essential for the establishment of immune homeostasis and timely activation of the cardiac repair process post-MI.
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Affiliation(s)
- Naixin Wang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Weiwei Wang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Xiaoqi Wang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Ge Mang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Jianfeng Chen
- Experimental Animal Centre (J. Chen), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Xiangyu Yan
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Zhonghua Tong
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Qiannan Yang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Mengdi Wang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Liangqi Chen
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Ping Sun
- Department of Ultrasound (P.S.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Yupeng Yang
- Guoke Biotechnology Co., Ltd., Changping District, Beijing, China (Y.Y.)
| | - Jingxuan Cui
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Mian Yang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Yafei Zhang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Dongni Wang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Jian Wu
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Maomao Zhang
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
| | - Bo Yu
- Department of Cardiology (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.), the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China (N.W., W.W., X.W., G.M., X.Y., Z.T., Q.Y., M.W., L.C., P.S., J. Cui, M.Y., Y.Z., D.W., J.W., M.Z., B.Y.)
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Jin J, Zhao X, Li W, Wang F, Tian J, Wang N, Gao X, Zhang J, Wu J, Mang G, Ma R, Hu S. Neutrophil extracellular traps: A novel therapeutic target for intracranial hemorrhage. Thromb Res 2022; 219:1-13. [DOI: 10.1016/j.thromres.2022.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 10/31/2022]
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Sun P, Wang C, Mang G, Xu X, Fu S, Chen J, Wang X, Wang W, Li H, Zhao P, Li Y, Chen Q, Wang N, Tong Z, Fu X, Lang Y, Duan S, Liu D, Zhang M, Tian J. Extracellular vesicle-packaged mitochondrial disturbing miRNA exacerbates cardiac injury during acute myocardial infarction. Clin Transl Med 2022; 12:e779. [PMID: 35452193 PMCID: PMC9028097 DOI: 10.1002/ctm2.779] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 12/24/2022] Open
Abstract
Mounting evidence suggests that extracellular vesicles (EVs) are effective communicators in biological signalling in cardiac physiology and pathology. However, the role of EVs in cardiac injury, particularly in ischemic myocardial scenarios, has not been fully elucidated. Here, we report that acute myocardial infarction (AMI)‐induced EVs can impair cardiomyocyte survival and exacerbate cardiac injury. EV‐encapsulated miR‐503, which is enriched during the early phase of AMI, is a critical molecule that mediates myocardial injury. Functional studies revealed that miR‐503 promoted cardiomyocyte death by directly binding to peroxisome proliferator‐activated receptor gamma coactivator‐1β (PGC‐1β) and a mitochondrial deacetylase, sirtuin 3 (SIRT3), thereby triggering mitochondrial metabolic dysfunction and cardiomyocyte death. Mechanistically, we identified endothelial cells as the primary source of miR‐503 in EVs after AMI. Hypoxia induced rapid H3K4 methylation of the promoter of the methyltransferase‐like 3 gene (METTL3) and resulted in its overexpression. METTL3 overexpression evokes N6‐methyladenosine (m6A)‐dependent miR‐503 biogenesis in endothelial cells. In summary, this study highlights a novel endogenous mechanism wherein EVs aggravate myocardial injury during the onset of AMI via endothelial cell‐secreted miR‐503 shuttling.
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Affiliation(s)
- Ping Sun
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Chao Wang
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Ge Mang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China.,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiangli Xu
- Department of Ultrasound, The Second Hospital of Harbin city, Harbin, China
| | - Shuai Fu
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Jianfeng Chen
- Laboratory Animal Center, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoqi Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China.,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Weiwei Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China.,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hairu Li
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Peng Zhao
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yifei Li
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Qi Chen
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China.,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Naixin Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China.,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhonghua Tong
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China.,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin Fu
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ying Lang
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Shasha Duan
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Dongmei Liu
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Maomao Zhang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China.,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiawei Tian
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
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Wu J, Liu M, Mang G, Yu S, Chen Q, Li T, Wang Y, Meng Y, Tang X, Zheng Y, Sun Y, Zhang M, Bo Y. Corrigendum to "Protosappanin A protects against experimental autoimmune myocarditis, and induces metabolically reprogrammed tolerogenic DCs" (Pharmacol. Res. 146 (2019) 104269). Pharmacol Res 2020; 160:105177. [PMID: 32919214 DOI: 10.1016/j.phrs.2020.105177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jian Wu
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Mingyang Liu
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Ge Mang
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Shan Yu
- Department of Pathology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China
| | - Qi Chen
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Tingting Li
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yongchen Wang
- Department of General Practice, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China
| | - Ying Meng
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - XinYue Tang
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yang Zheng
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yong Sun
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China.
| | - Yu Bo
- Department of Cardiology, The Second Affiliated Hospital of HarbinMedical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
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Sun P, Wang N, Zhao P, Wang C, Li H, Chen Q, Mang G, Wang W, Fang S, Du G, Zhang M, Tian J. Circulating Exosomes Control CD4 + T Cell Immunometabolic Functions via the Transfer of miR-142 as a Novel Mediator in Myocarditis. Mol Ther 2020; 28:2605-2620. [PMID: 32882180 DOI: 10.1016/j.ymthe.2020.08.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 07/13/2020] [Accepted: 08/19/2020] [Indexed: 12/29/2022] Open
Abstract
CD4+ T cells undergo immunometabolic activation to mount an immunogenic response during experimental autoimmune myocarditis (EAM). Exosomes are considered key messengers mediating multiple T cell functions in autoimmune responses. However, the role of circulating exosomes in EAM immunopathogenesis and CD4+ T cell dysfunction remains elusive. Our objective was to elucidate the mechanism of action for circulating exosomes in EAM pathogenesis. We found that serum exosomes harvested from EAM mice induced CD4+ T cell immunometabolic dysfunction. Treatment with the exosome inhibitor GW4869 protected mice from developing EAM, underlying that exosomes are indispensable for the pathogenesis of EAM. Furthermore, by transfer of EAM exosomes, we confirmed that circulating exosomes initiate the T cell pathological immune response, driving the EAM pathological process. Mechanistically, EAM-circulating exosomes selectively loaded abundant microRNA (miR)-142. We confirmed methyl-CpG binding domain protein 2 (MBD2) and suppressor of cytokine signaling 1 (SOCS1) as functional target genes of miR-142. The miR-142/MBD2/MYC and miR-142/SOCS1 communication axes are critical to exosome-mediated immunometabolic turbulence. Moreover, the in vivo injection of the miR-142 inhibitor alleviated cardiac injury in EAM mice. This effect was abrogated by pretreatment with EAM exosomes. Collectively, our results indicate a newly endogenous mechanism whereby circulating exosomes regulate CD4+ T cell immunometabolic dysfunction and EAM pathogenesis via cargo miR-142.
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Affiliation(s)
- Ping Sun
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Naixin Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Peng Zhao
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Chao Wang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Hairu Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Qi Chen
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ge Mang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Weiwei Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Shaohong Fang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Guoqing Du
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| | - Jiawei Tian
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
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Chen Q, Mang G, Wu J, Sun P, Li T, Zhang H, Wang N, Tong Z, Wang W, Zheng Y, Tian J, E M, Zhang M, Yu B. Circular RNA circSnx5 Controls Immunogenicity of Dendritic Cells through the miR-544/SOCS1 Axis and PU.1 Activity Regulation. Mol Ther 2020; 28:2503-2518. [PMID: 32681834 DOI: 10.1016/j.ymthe.2020.07.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 05/13/2020] [Accepted: 06/28/2020] [Indexed: 12/18/2022] Open
Abstract
Dendritic cells (DCs) can orchestrate either immunogenic or tolerogenic responses to relay information on the functional state. Emerging studies indicate that circular RNAs (circRNAs) are involved in immunity; however, it remains unclear whether they govern DC development and function at the transcriptional level. In this study, we identified a central role for a novel circRNA, circSnx5, in modulating DC-driven immunity and tolerance. Ectopic circSnx5 suppresses DC activation and promotes the development of tolerogenic functions of DCs, while circSnx5 knockdown promotes their activation and inflammatory phenotype. Mechanistically, circSnx5 can act as a miR-544 sponge to attenuate miRNA-mediated target depression on suppressor of cytokine signaling 1 (SOCS1) and inhibit nuclear translocation of PU.1, regulating DC activation and function. Furthermore, the main splicing factors (SFs) were identified in DCs, of which heterogeneous nuclear ribonucleoprotein (hnRNP) C was essential for circSnx5 generation. Moreover, our data demonstrated that vaccination with circSnx5-conditioned DCs prolonged cardiac allograft survival in mice and alleviated experimental autoimmune myocarditis. Taken together, our results revealed circSnx5 as a key modulator to fine-tune DC function, suggesting that circSnx5 may serve as a potential therapeutic avenue for immune-related diseases.
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Affiliation(s)
- Qi Chen
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Ge Mang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Jian Wu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Ping Sun
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Tingting Li
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Hanlu Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Naixin Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Zhonghua Tong
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Weiwei Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Yang Zheng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Jinwei Tian
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
| | - Mingyan E
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin 50001, Heilongjiang Province, China.
| | - Maomao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China.
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Nangang District, Harbin 150001, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, No. 246 Xuefu Road, Nangang District, Harbin 50001, Heilongjiang Province, China
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Wu J, Sun P, Chen Q, Sun Y, Shi M, Mang G, Yu S, Zheng Y, Li Z, Sun M, Fang S, Zhang Y, Tian J, Mingyan E, Zhang M, Yu B. Metabolic reprogramming orchestrates CD4 + T-cell immunological status and restores cardiac dysfunction in autoimmune induced-dilated cardiomyopathy mice. J Mol Cell Cardiol 2019; 135:134-148. [PMID: 31398346 DOI: 10.1016/j.yjmcc.2019.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 07/31/2019] [Accepted: 08/03/2019] [Indexed: 12/18/2022]
Abstract
Cellular autoimmune responses, especially those mediated by T-cells, play vital roles in the immunopathogenesis of dilated cardiomyopathy (DCM). Metabolic reprogramming directly controls T-cell function, imprinting distinct functional fates. However, its contribution to T-cell dysfunction and the immunopathogenesis of DCM is unknown. Here, we found that in DCM patients, CD4+ T-cells exhibited immune dysfunction and glycolytic metabolic reprogramming based on extracellular acidification and oxygen consumption rates. Similar results were observed in splenic and cardiac CD4+ T-cells from autoimmune-induced DCM mice. In vitro, the glycolysis inhibitor 2-deoxy-d-glucose (2-DG) reversed T-cell dysfunction; thus, heightened metabolic activity directly controls CD4+ T-cell immunological status. Adoptive transfer of CD4+ T-cells from DCM mice to normal recipients induced cardiac remodeling and cardiac T-cell dysfunction. Strikingly, these effects were abolished by preconditioning cells with 2-DG, indicating that CD4+ T-cell dysfunction partially induced by metabolic reprogramming contributes to cardiac remodeling. Moreover, the microRNA let-7i modulated the metabolism and function of T-cells from DCM mice by directly targeting Myc. Collectively, our results show that metabolic reprogramming occurs in T-cells of autoimmune-induced DCM mice and patients. Further, our findings highlight that glycolytic metabolism is a critical contributor to T-cell dysfunction and DCM immunopathogenesis. Our data position the modulation of the metabolism as a central integrator for T-cell function, representing a promising strategy against autoimmune-mediated DCM progression.
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Affiliation(s)
- Jian Wu
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Ping Sun
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Qi Chen
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yong Sun
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Ming Shi
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang Province, China
| | - Ge Mang
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Shan Yu
- Department of Pathology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Yang Zheng
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Zhaoying Li
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Meng Sun
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Shaohong Fang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yongxiang Zhang
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Jinwei Tian
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - E Mingyan
- Department of Radiotherapy, the Harbin Medical University Cancer Hospital, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China.
| | - Bo Yu
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
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Wu J, Liu M, Mang G, Yu S, Chen Q, Li T, Wang Y, Meng Y, Tang X, Zheng Y, Sun Y, Zhang M, Yu B. Protosappanin A protects against experimental autoimmune myocarditis, and induces metabolically reprogrammed tolerogenic DCs. Pharmacol Res 2019; 146:104269. [PMID: 31078745 DOI: 10.1016/j.phrs.2019.104269] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 04/08/2019] [Accepted: 05/08/2019] [Indexed: 02/07/2023]
Abstract
Autoimmune myocarditis is an immune-mediated myocardial injury that evolves into dilated cardiomyopathy (DCM). Protosappanin A (PrA), an immunosuppressive compound, induces immune tolerance in cardiac transplantation. However, whether PrA confers protective immunosuppression on experimental autoimmune myocarditis (EAM) is unknown. In this study, PrA treatment remarkably suppressed cardiac inflammatory cell infiltration and ameliorated cardiac remodeling in EAM mice. Additionally, PrA treatment reduced splenic T cells response, and induced expansion of immunosuppressive regulatory T cells (Tregs). Meanwhile, PrA induced the splenic dendritic cells (DCs) into a tolerogenic state with reduced co-stimulatory molecules, increased the production of tolerogenic cytokines in vivo. PrA also reprogrammed the metabolism of splenic DCs to a more glycolytic phenotype. To further investigate the effect of PrA on the functional and metabolic phenotype of DCs, the compound was added into the in vitro culture of MyHC-α-loaded DCs. These cells switched to a tolerogenic state and a metabolic profile similar to that found in cells during in ex vivo experiments. Treatment with glycolytic inhibitor 2-DG significantly reversed PrA-mediated DC tolerogenic properties, suggesting that glycolysis is indispensable for PrA-conditioned DCs to maintain their tolerogenic properties. Notably, PrA-conditioned DC vaccinations dampened EAM progress, and promoted Tregs expansion. Similarly, tolerogenic and metabolic patterns were also observed in PrA-modified human DC. In conclusion, PrA endows DC with a tolerogenic profile via glycolytic reprogramming, thereby inducing expansion of immunosuppressive Tregs, and preventing EAM progress. Our results suggested that PrA may confer immunosuppressive and protective effects on EAM by metabolically reprogramming DCs, which could contribute to the development of a new potential immunotherapy for the treatment of EAM and immune-related disorders.
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Affiliation(s)
- Jian Wu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Mingyang Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Ge Mang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Shan Yu
- Department of Pathology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Qi Chen
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Tingting Li
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yongchen Wang
- Department of General Practice, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ying Meng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - XinYue Tang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yang Zheng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Yong Sun
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China.
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
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Hunziker L, Radovanovic D, Jeger R, Pedrazzini G, Cuculi F, Urban P, Erne P, Rickli H, Pilgrim T, Hess F, Simon R, Hangartner P, Hufschmid U, Hornig B, Altwegg L, Trummler S, Windecker S, Rueff T, Loretan P, Roethlisberger C, Evéquoz D, Mang G, Ryser D, Müller P, Jecker R, Kistler W, Hongler T, Stäuble S, Freiwald G, Schmid H, Stauffer J, Cook S, Bietenhard K, Roffi M, Wojtyna W, Schönenberger R, Simonin C, Waldburger R, Schmidli M, Federspiel B, Weiss E, Marty H, Weber K, Zender H, Poepping I, Hugi A, Koltai E, Iglesias J, Erne P, Heimes T, Jordan B, Pagnamenta A, Feraud P, Beretta E, Stettler C, Repond F, Widmer F, Heimgartner C, Polikar R, Bassetti S, Iselin H, Giger M, Egger P, Kaeslin T, Fischer A, Herren T, Eichhorn P, Neumeier C, Flury G, Girod G, Vogel R, Niggli B, Yoon S, Nossen J, Stoller U, Veragut U, Bächli E, Weber A, Schmidt D, Hellermann J, Eriksson U, Fischer T, Peter M, Gasser S, Fatio R, Vogt M, Ramsay D, Wyss C, Bertel O, Maggiorini M, Eberli F, Christen S. Twenty-Year Trends in the Incidence and Outcome of Cardiogenic Shock in AMIS Plus Registry. Circ Cardiovasc Interv 2019; 12:e007293. [DOI: 10.1161/circinterventions.118.007293] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Lukas Hunziker
- Department of Cardiology, Bern University Hospital, Switzerland (L.H., T.P.)
| | - Dragana Radovanovic
- AMIS Plus Data Center, Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Switzerland (D.R.)
| | - Raban Jeger
- Division of Cardiology, University Hospital Basel, Switzerland (R.J.)
| | | | - Florim Cuculi
- Heart Centre Lucerne, Luzerner Kantonsspital, Switzerland (F.C.)
| | - Philip Urban
- Cardiology Department, La Tour Hospital, Geneva, Switzerland (P.U.)
| | - Paul Erne
- Department of Biomedicine, University of Basel, Switzerland (P.E.)
| | - Hans Rickli
- Department of Cardiology, Kantonsspital St. Gallen, Switzerland (H.R.)
| | - Thomas Pilgrim
- Department of Cardiology, Bern University Hospital, Switzerland (L.H., T.P.)
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Kompotis K, Mang G, Jimenez S, Emmenegger Y, Franken P. MIR-709: a micro regulator of large amplitude EEG slow waves. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mang G, Nicod J, Donohue K, O’Hara B, Flint J, Franken P. Une méthode non invasive comme alternative à l’électro-encéphalographie et l’électromyographie dans l’étude du sommeil chez la souris. Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.02.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Abstract
We report the first case of a lethal Amanita phalloides intoxication from stored mushrooms. After picking the mushrooms were kept in a freezer for 7-8 months. This case is in accordance with the well-known stability of the amatoxins and demonstrates the possibility of A. phalloides poisoning at any time of year.
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Affiliation(s)
- A Himmelmann
- Medical Clinic B, Department of Internal Medicine, University Hospital Zürich, Switzerland.
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Himmelmann A, Mang G, Schnorf-Huber S. Lethal ingestion of stored Amanita phalloides mushrooms. Swiss Med Wkly 2001; 131:616-7. [PMID: 11820073 DOI: 10.4414/smw.2001.09831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We report the first case of a lethal Amanita phalloides intoxication from stored mushrooms. After picking the mushrooms were kept in a freezer for 7-8 months. This case is in accordance with the well-known stability of the amatoxins and demonstrates the possibility of A. phalloides poisoning at any time of year.
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Affiliation(s)
- A Himmelmann
- Medical Clinic B, Department of Internal Medicine, University Hospital Zürich, Switzerland.
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Annen B, Mang G, Schuiki E, Strebel U, Knoblauch M. [C-reactive protein and relative lymphocytopenia: early markers of acute myocardial infarction?]. Schweiz Med Wochenschr 1999; 129:1931-4. [PMID: 10635086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
OBJECTIVE Recent data suggest that relative lymphocytopenia and elevated C-reactive protein (CRP) are early markers of myocardial infarction. We tested these two parameters to predict myocardial infarction before elevation of creatine kinase. METHODS Over a two-year period, 260 patients presented at the emergency room of Männedorf Hospital with suspicion of unstable angina or myocardial infarction. 197 patients were excluded because of intercurrent conditions associated with an acute-phase response or changes in leukocyte counts, as well as patients with established myocardial infarction (creatine kinase elevation at entry). The remaining 63 patients were reviewed for relative lymphocytopenia (< 20.3%) and C-reactive protein levels > 5 mg/l at admission. RESULTS Elevated levels of C-reactive protein were found in 8 of 20 patients (40%) with unstable angina and in 29 of 43 patients (67%) with myocardial infarction. A value for C-reactive protein > 5 mg/l on admission had a sensitivity of 67% and a predictive value of 78% for subsequent myocardial infarction. Relative lymphocytopenia was found in 2 patients (10%) with unstable angina and in 19 patients (44%) with myocardial infarction. The positive predictive value of both markers diagnosing myocardial infarction was 93% compared to 78% of elevated CRP or 90% of relative lymphocytopenia. In contrast, the sensitivity of both markers combined was 33%. CONCLUSIONS At present, elevation of C-reactive protein and relative lymphocytopenia allow early diagnosis of myocardial infarction. However, the markers' sensitivity is relatively low.
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Affiliation(s)
- B Annen
- Medizinische Abteilung, Kreisspital Männedorf
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Abstract
Reduced hepatic mitochondrial beta-oxidation and changes in the plasma carnitine pool are important biochemical findings in valproate induced liver toxicity. The carnitine pools in plasma and liver and the liver coenzyme A (CoA) pool in a patient with fatal, valproate induced hepatotoxicity were measured. In plasma and liver the free and total carnitine contents were decreased, whereas the ratios short chain acylcarnitine/total acid soluble carnitine were increased. The long chain acylcarnitine content was unchanged in plasma, and increased in liver. The total CoA content in liver was decreased by 84%. This was due to reduced concentrations of CoASH, acetyl-CoA, and long chain acyl-CoA whereas the concentrations of succinyl-CoA and propionyl-CoA were both increased. The good agreement between the plasma and liver carnitine pools reflects the close relation between these two pools. The observed decrease in the hepatic CoASH and total CoA content has so far not been reported in humans with valproate induced hepatotoxicity and may be functionally significant.
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Affiliation(s)
- S Krähenbühl
- Department of Internal Medicine, University Hospital, Zürich, Switzerland
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Mang G, Schuiki E, Amann FW. [Hyperventilation test: a noninvasive screening test for coronary vasospasm]. Schweiz Med Wochenschr 1995; 125:777-85. [PMID: 7732351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
3 patients with coronary vasospasms in different clinical situations are presented. One patient had typical Prinzmetal angina but coronary arteries without significant stenosis. One patient without typical angina pectoris showed sudden significant ST elevations on anterior and lateral ECG tracings accompanied by typical ischemic chest pain. At angiography, a 70% LAD stenosis was found without high degree lesions. One patient (aged 30 years) had a documented anterior infarction with angiographically normal coronary arteries. In all these cases coronary vasospasms were recognized as the underlying cause of the symptoms. All the patients were treated with calcium channel blockers and have been asymptomatic since. Currently available data comparing the diagnostic value of hyperventilation with other tests for coronary vasospasms, such as ergonovine or acetylcholine, are discussed. The hyperventilation test can be recommended as the first test in the work up of suspected vasospastic angina pectoris.
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Affiliation(s)
- G Mang
- Departement für Innere Medizin, Universitätsspital Zürich
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Thurnheer R, Angehrn W, Mang G, Schröder S. [Acute pulmonary edema in a 34-year-old woman]. Schweiz Med Wochenschr 1994; 124:2088-95. [PMID: 7973547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- R Thurnheer
- Klinik B für Innere Medizin, Kantonsspital St. Gallen
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Mang G, Walter E, Bertschinger P, Lammer F, Blum HE. [Bacterial infections following sclerosing therapy for esophageal varices]. Schweiz Med Wochenschr 1993; 123:1796-801. [PMID: 8211032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Two patients with infectious complications 3 and 5 days after elective sclerotherapy of esophageal varices are presented. Both patients had liver cirrhosis (primary biliary cirrhosis and alcoholic liver cirrhosis with hepatitis B virus infection respectively). In one patient a brain abscess developed which was treated successfully by antibiotics and surgery; in the other patient pneumococcal bacteremia and gonarthritis developed. Frequency, possible causes and antibiotic prophylaxis are discussed.
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Affiliation(s)
- G Mang
- Medizinische Klinik B, Universitätsspital Zürich
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