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Peng Z, Zhang D, Yang H, Zhou Z, Wang F, Wang Z, Ren J, Wang E. Mitochondria-targeted fluorescent probe for simultaneously imaging viscosity and sulfite in inflammation models. Analyst 2024; 149:3356-3362. [PMID: 38712511 DOI: 10.1039/d4an00467a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Many diseases in the human body are related to the overexpression of viscosity and sulfur dioxide. Therefore, it is essential to develop rapid and sensitive fluorescent probes to detect viscosity and sulfur dioxide. In the present work, we developed a dual-response fluorescent probe (ES) for efficient detection of viscosity and sulfur dioxide while targeting mitochondria well. The probe generates intramolecular charge transfer by pushing and pulling the electron-electron system, and the ICT effect is destroyed and the fluorescence quenched upon reaction with sulfite. The rotation of the molecule is inhibited in the high-viscosity system, producing a bright red light. In addition, the probe has good biocompatibility and can be used to detect sulfite in cells, zebrafish and mice, as well as upregulation of viscosity in LPS-induced inflammation models. We expect that the dual response fluorescent probe ES will be able to detect viscosity and sulfite efficiently, providing an effective means of detecting viscosity and sulfite-related diseases.
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Affiliation(s)
- Zixiong Peng
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, Hubei University, Wuhan 430062, P. R. China.
| | - Dan Zhang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, Hubei University, Wuhan 430062, P. R. China.
| | - Hang Yang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, Hubei University, Wuhan 430062, P. R. China.
| | - Zhe Zhou
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, Hubei University, Wuhan 430062, P. R. China.
| | - Feiyi Wang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, Hubei University, Wuhan 430062, P. R. China.
| | - Zhao Wang
- Wuhan Business University, Wuhan 430056, P.R. China.
| | - Jun Ren
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, Hubei University, Wuhan 430062, P. R. China.
| | - Erfei Wang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, Hubei University, Wuhan 430062, P. R. China.
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Ye X, Wang Z, Hu X, Xie P, Liu Y. Differential evaluation of sulfur oxides in the natural lake water samples by carbazole-furan fluorescent probe. CHEMOSPHERE 2024; 352:141308. [PMID: 38280644 DOI: 10.1016/j.chemosphere.2024.141308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 01/29/2024]
Abstract
Water bodies are frequently polluted, with sulfur oxides being the most common form of water pollution. Therefore, developing a detection mechanism for sulfur oxides in water bodies is particularly urgent. A new fluorescent probe YX-KZBD was designed and developed. This probe releases fluorescent signals with its own sulfurous acid recognition site, detects sulfurous acid based on the Michael addition reaction, and evaluates the pollution degree of sulfur oxides in the water environment through the transformation mode of the sulfur cycle. This probe has high energy transfer efficiency in aqueous solutions. In addition, the fluorescence data obtained by analyzing the water samples were linearly fitted with the gene abundance values of the functional genes of sulfur-producing bacteria, and a significant correlation was obtained. The Kriging interpolation model was used to evaluate the sulfate content distribution at each sampling point to understand the distribution of sulfur oxides in natural water intuitively. The fluorescence signal excited by the probe was also combined with a real-time quantitative polymerase chain reaction (qPCR), and sulfate-reducing and sulfur-oxidizing bacteria were introduced in the sulfur cycle, providing a new method to assess the extent of water pollution effectively.
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Affiliation(s)
- Xiao Ye
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, PR China; Institute of International Rivers and Eco-Security, Yunnan University, Kunming, 650500, PR China
| | - Zhaomin Wang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, PR China; Institute of International Rivers and Eco-Security, Yunnan University, Kunming, 650500, PR China
| | - Xiangyu Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, PR China; Institute of International Rivers and Eco-Security, Yunnan University, Kunming, 650500, PR China
| | - Ping Xie
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, PR China; Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, PR China
| | - Yong Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, PR China; Institute of International Rivers and Eco-Security, Yunnan University, Kunming, 650500, PR China.
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Yang Q, Yang T, Liu X, Liu S, Liu W, Nie L, Chu C, Yang J. Effects of gas signaling molecule SO 2 in cardiac functions of hyperthyroid rats. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2024; 28:129-143. [PMID: 38414396 PMCID: PMC10902587 DOI: 10.4196/kjpp.2024.28.2.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/30/2023] [Accepted: 12/11/2023] [Indexed: 02/29/2024]
Abstract
Sulfur dioxide (SO2), a novel endogenous gas signaling molecule, is involved in the regulation of cardiac function. Exerting a key role in progression of hyperthyroidism-induced cardiomyopathy (HTC), myocardial fibrosis is mainly caused by myocardial apoptosis, leading to poor treatment outcomes and prognoses. This study aimed to investigate the effect of SO2 on the hyperthyroidism-induced myocardial fibrosis and the underlying regulatory mechanisms. Elisa, Masson staining, Western-Blot, transmission electron microscope, and immunofluorescence were employed to evaluate the myocardial interstitial collagen deposition, endoplasmic reticulum stress (ERS), apoptosis, changes in endogenous SO2, and Hippo pathways from in vitro and in vivo experiments. The study results indicated that the hyperthyroidism-induced myocardial fibrosis was accompanied by decreased cardiac function, and down-regulated ERS, apoptosis, and endogenous SO2-producing enzyme aspartate aminotransferase (AAT)1/2 in cardiac myocytes. In contrast, exogenous SO2 donors improved cardiac function, reduced myocardial interstitial collagen deposition, up-regulated AAT1/2, antagonized ERS and apoptosis, and inhibited excessive activation of Hippo pathway in hyperthyroid rats. In conclusion, the results herein suggested that SO2 inhibited the overactivation of the Hippo pathway, antagonized ERS and apoptosis, and alleviated myocardial fibrosis in hyperthyroid rats. Therefore, this study was expected to identify intervention targets and new strategies for prevention and treatment of HTC.
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Affiliation(s)
- Qi Yang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan, China
| | - Ting Yang
- School of Pharmaceutical Science of University of South China, Hengyang 421000, Hunan, China
| | - Xing Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan, China
| | - Shengquan Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan, China
| | - Wei Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan, China
| | - Liangui Nie
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan, China
| | - Chun Chu
- Department of Pharmacy, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan, China
| | - Jun Yang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan, China
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Li H, Liu Y, Wang Y, Li J, Li Y, Zhang G, Zhang C, Shuang S, Dong C. A near infrared fluorescence probe with dual-site for hydrogen sulfide and sulfur dioxide detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123523. [PMID: 37857073 DOI: 10.1016/j.saa.2023.123523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
Both hydrogen sulfide (H2S) and sulfur dioxide (SO2) are regarded as double-edged swords. They are toxic gases at high concentration, and at low concentration they are beneficial to the human. Therefore, it is of great significance to develop single chemosensor which enable to detect them with different fluorescence signal changes. In this work, a novel dual-site fluorescence probe (AMN-SSPy) with near infrared emission (675 nm) was designed, which realized quantitative detection for H2S and SO2 by fluorescence enhancement and fluorescence quenching, respectively. AMN-SSPy showed advantages such as excellent selectivity to H2S and SO2, strong anti-interference ability, high sensitivity for H2S (LOD 1.03 µM for H2S and 77.08 µM for SO2) and low toxicity. In addition, AMN-SSPy possessed the capacity to successfully image the endogenous and exogenous H2S, and it was also used to demonstrate that Ca2+ could induce accumulation of H2S in cell and zebrafish. Finally, the rapid detection of SO2 by AMN-SSPy in real samples was also established.
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Affiliation(s)
- Haoyang Li
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Ying Liu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Yuhang Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Jinshan Li
- Chumin College, Shanxi University, Taiyuan 030006, China
| | - Yang Li
- Chumin College, Shanxi University, Taiyuan 030006, China
| | - Guomei Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Caihong Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
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Li Z, Huang Y, Lv B, Du J, Yang J, Fu L, Jin H. Gasotransmitter-Mediated Cysteinome Oxidative Posttranslational Modifications: Formation, Biological Effects, and Detection. Antioxid Redox Signal 2024; 40:145-167. [PMID: 37548538 DOI: 10.1089/ars.2023.0407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Significance: Gasotransmitters, including nitric oxide (NO), hydrogen sulfide (H2S) and sulfur dioxide (SO2), participate in various cellular processes via corresponding oxidative posttranslational modifications (oxiPTMs) of specific cysteines. Recent Advances: Accumulating evidence has clarified the mechanisms underlying the formation of oxiPTMs derived from gasotransmitters and their biological functions in multiple signal pathways. Because of the specific existence and functional importance, determining the sites of oxiPTMs in cysteine is crucial in biology. Recent advances in the development of selective probes, together with upgraded mass spectrometry (MS)-based proteomics, have enabled the quantitative analysis of cysteinome. To date, several cysteine residues have been identified as gasotransmitter targets. Critical Issues: To clearly understand the underlying mechanisms for gasotransmitter-mediated biological processes, it is important to identify modified targets. In this review, we summarize the chemical formation and biological effects of gasotransmitter-dependent oxiPTMs and highlight the state-of-the-art detection methods. Future Directions: Future studies in this field should aim to develop the next generation of probes for in situ labeling to improve spatial resolution and determine the dynamic change of oxiPTMs, which can lay the foundation for research on the molecular mechanisms and clinical translation of gasotransmitters. Antioxid. Redox Signal. 40, 145-167.
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Affiliation(s)
- Zongmin Li
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Boyang Lv
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Jing Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing, Beijing Institute of Lifeomics, Beijing, China
| | - Ling Fu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing, Beijing Institute of Lifeomics, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
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Song Y, Xu Z, Zhong Q, Zhang R, Sun X, Chen G. Sulfur signaling pathway in cardiovascular disease. Front Pharmacol 2023; 14:1303465. [PMID: 38074127 PMCID: PMC10704606 DOI: 10.3389/fphar.2023.1303465] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/24/2023] [Indexed: 04/14/2024] Open
Abstract
Hydrogen sulfide (H2S) and sulfur dioxide (SO2), recognized as endogenous sulfur-containing gas signaling molecules, were the third and fourth molecules to be identified subsequent to nitric oxide and carbon monoxide (CO), and exerted diverse biological effects on the cardiovascular system. However, the exact mechanisms underlying the actions of H2S and SO2 have remained elusive until now. Recently, novel post-translational modifications known as S-sulfhydration and S-sulfenylation, induced by H2S and SO2 respectively, have been proposed. These modifications involve the chemical alteration of specific cysteine residues in target proteins through S-sulfhydration and S-sulfenylation, respectively. H2S induced S-sulfhydrylation can have a significant impact on various cellular processes such as cell survival, apoptosis, cell proliferation, metabolism, mitochondrial function, endoplasmic reticulum stress, vasodilation, anti-inflammatory response and oxidative stress in the cardiovascular system. Alternatively, S-sulfenylation caused by SO2 serves primarily to maintain vascular homeostasis. Additional research is warranted to explore the physiological function of proteins with specific cysteine sites, despite the considerable advancements in comprehending the role of H2S-induced S-sulfhydration and SO2-induced S-sulfenylation in the cardiovascular system. The primary objective of this review is to present a comprehensive examination of the function and potential mechanism of S-sulfhydration and S-sulfenylation in the cardiovascular system. Proteins that undergo S-sulfhydration and S-sulfenylation may serve as promising targets for therapeutic intervention and drug development in the cardiovascular system. This could potentially expedite the future development and utilization of drugs related to H2S and SO2.
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Affiliation(s)
- Yunjia Song
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Zihang Xu
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Qing Zhong
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Rong Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xutao Sun
- Department of Typhoid, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Guozhen Chen
- Department of Pediatrics, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
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Luo S, Kong C, Ye D, Liu X, Wang Y, Meng G, Han Y, Xie L, Ji Y. Protein Persulfidation: Recent Progress and Future Directions. Antioxid Redox Signal 2023; 39:829-852. [PMID: 36943282 DOI: 10.1089/ars.2022.0064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Significance: Hydrogen sulfide (H2S) is considered to be a gasotransmitter along with carbon monoxide (CO) and nitric oxide (NO), and is known as a key regulator of physiological and pathological activities. S-sulfhydration (also known as persulfidation), a mechanism involving the formation of protein persulfides by modification of cysteine residues, is proposed here to explain the multiple biological functions of H2S. Investigating the properties of protein persulfides can provide a foundation for further understanding of the potential functions of H2S. Recent Advances: Multiple methods have been developed to determine the level of protein persulfides. It has been demonstrated that protein persulfidation is involved in many biological processes through various mechanisms including the regulation of ion channels, enzymes, and transcription factors, as well as influencing protein-protein interactions. Critical Issues: Some technical and theoretical questions remain to be solved. These include how to improve the specificity of the detection methods for protein persulfidation, why persulfidation typically occurs on one or a few thiols within a protein, how this modification alters protein functions, and whether protein persulfidation has organ-specific patterns. Future Directions: Optimizing the detection methods and elucidating the properties and molecular functions of protein persulfidation would be beneficial for current therapeutics. In this review, we introduce the detailed mechanism of the persulfidation process and discuss persulfidation detection methods. In addition, this review summarizes recent discoveries of the selectivity of protein persulfidation and the regulation of protein functions and cell signaling pathways by persulfidation. Antioxid. Redox Signal. 39, 829-852.
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Affiliation(s)
- Shanshan Luo
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Nanjing Medical University, Nanjing, China
| | - Chuiyu Kong
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Nanjing Medical University, Nanjing, China
| | - Danyu Ye
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Nanjing Medical University, Nanjing, China
| | - Xingeng Liu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Nanjing Medical University, Nanjing, China
- Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yu Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Nanjing Medical University, Nanjing, China
| | - Guoliang Meng
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Yi Han
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Liping Xie
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Nanjing Medical University, Nanjing, China
- Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Yong Ji
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Nanjing Medical University, Nanjing, China
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Nanjing Medical University, Nanjing, China
- Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin Medical University, Harbin, China
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Liu X, Zhou H, Zhang H, Jin H, He Y. Advances in the research of sulfur dioxide and pulmonary hypertension. Front Pharmacol 2023; 14:1282403. [PMID: 37900169 PMCID: PMC10602757 DOI: 10.3389/fphar.2023.1282403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023] Open
Abstract
Pulmonary hypertension (PH) is a fatal disease caused by progressive pulmonary vascular remodeling (PVR). Currently, the mechanisms underlying the occurrence and progression of PVR remain unclear, and effective therapeutic approaches to reverse PVR and PH are lacking. Since the beginning of the 21st century, the endogenous sulfur dioxide (SO2)/aspartate transaminase system has emerged as a novel research focus in the fields of PH and PVR. As a gaseous signaling molecule, SO2 metabolism is tightly regulated in the pulmonary vasculature and is associated with the development of PH as it is involved in the regulation of pathological and physiological activities, such as pulmonary vascular cellular inflammation, proliferation and collagen metabolism, to exert a protective effect against PH. In this review, we present an overview of the studies conducted to date that have provided a theoretical basis for the development of SO2-related drug to inhibit or reverse PVR and effectively treat PH-related diseases.
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Affiliation(s)
- Xin Liu
- Department of Pediatric Cardiac Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - He Zhou
- Departments of Medicine and Physiology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Hongsheng Zhang
- Department of Pediatric Cardiac Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Yan He
- Department of Pediatric Cardiac Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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Zhang S, Chi Y, Jin H, Wang X, Zhao X, Gao Y, Zhang J. Alteration of Intestinal Microbiota and Hydrogen Sulfide Metabolism in Patients with Hashimoto's Thyroiditis. JOURNAL OF HEALTHCARE ENGINEERING 2023; 2023:9302189. [PMID: 37469789 PMCID: PMC10352533 DOI: 10.1155/2023/9302189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 07/21/2023]
Abstract
Objective To analyze the intestinal microbiota and H2S levels in patients with HT. Methods Twenty euthyroid HT patients and twenty healthy control individuals were recruited. Fecal samples were collected, and the microbiota was examined using 16S RNA gene sequencing. We also collected serum samples to examine the H2S levels. Results Compared with patients with HT, the ACE and Chao indices were significantly lower in healthy controls (P=0.04, 0.03, respectively). The microbial composition of the HT group differed significantly from that of the healthy group. We observed a significant increase in the proportions of Bacteroides, Fusobacterium, Sutterella, and Veillonella in patients with HT (P < 0.05). Linear discriminant analysis and effect size analysis also revealed that Bacteroides and Ralstonia were enriched in patients with HT. Additionally, patients with HT had significantly lower H2S levels than healthy controls (P < 0.005). The enrichment of H2S anabolism was linked to the alteration of intestinal microbiota in patients with HT. Conclusion We demonstrated that patients with HT have aberrant intestinal microbiome and that H2S anabolism may contribute to HT pathogenesis.
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Affiliation(s)
- Shangqing Zhang
- Department of Endocrinology, Peking University First Hospital, Beijing 100034, China
| | - Yan Chi
- Department of Gastroenterology, Peking University First Hospital, Beijing 100034, China
| | - Hongfang Jin
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - Xiuli Wang
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - Xue Zhao
- Department of Endocrinology, Peking University First Hospital, Beijing 100034, China
| | - Ying Gao
- Department of Endocrinology, Peking University First Hospital, Beijing 100034, China
| | - Junqing Zhang
- Department of Endocrinology, Peking University First Hospital, Beijing 100034, China
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10
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Dri E, Lampas E, Lazaros G, Lazarou E, Theofilis P, Tsioufis C, Tousoulis D. Inflammatory Mediators of Endothelial Dysfunction. Life (Basel) 2023; 13:1420. [PMID: 37374202 DOI: 10.3390/life13061420] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Endothelial dysfunction (ED) is characterized by imbalanced vasodilation and vasoconstriction, elevated reactive oxygen species (ROS), and inflammatory factors, as well as deficiency of nitric oxide (NO) bioavailability. It has been reported that the maintenance of endothelial cell integrity serves a significant role in human health and disease due to the involvement of the endothelium in several processes, such as regulation of vascular tone, regulation of hemostasis and thrombosis, cell adhesion, smooth muscle cell proliferation, and vascular inflammation. Inflammatory modulators/biomarkers, such as IL-1α, IL-1β, IL-6, IL-12, IL-15, IL-18, and tumor necrosis factor α, or alternative anti-inflammatory cytokine IL-10, and adhesion molecules (ICAM-1, VCAM-1), involved in atherosclerosis progression have been shown to predict cardiovascular diseases. Furthermore, several signaling pathways, such as NLRP3 inflammasome, that are associated with the inflammatory response and the disrupted H2S bioavailability are postulated to be new indicators for endothelial cell inflammation and its associated endothelial dysfunction. In this review, we summarize the knowledge of a plethora of reviews, research articles, and clinical trials concerning the key inflammatory modulators and signaling pathways in atherosclerosis due to endothelial dysfunction.
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Affiliation(s)
- Eirini Dri
- 1st Department of Cardiology, Hippokration General Hospital, Kapodistrian University of Athens Medical School, Vas. Sofias 114, 11528 Athens, Greece
| | - Evangelos Lampas
- Department of Cardiology, Konstantopouleio General Hospital, 14233 Athens, Greece
| | - George Lazaros
- 1st Department of Cardiology, Hippokration General Hospital, Kapodistrian University of Athens Medical School, Vas. Sofias 114, 11528 Athens, Greece
| | - Emilia Lazarou
- 1st Department of Cardiology, Hippokration General Hospital, Kapodistrian University of Athens Medical School, Vas. Sofias 114, 11528 Athens, Greece
| | - Panagiotis Theofilis
- 1st Department of Cardiology, Hippokration General Hospital, Kapodistrian University of Athens Medical School, Vas. Sofias 114, 11528 Athens, Greece
| | - Costas Tsioufis
- 1st Department of Cardiology, Hippokration General Hospital, Kapodistrian University of Athens Medical School, Vas. Sofias 114, 11528 Athens, Greece
| | - Dimitris Tousoulis
- 1st Department of Cardiology, Hippokration General Hospital, Kapodistrian University of Athens Medical School, Vas. Sofias 114, 11528 Athens, Greece
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Li Z, Huang J, Wang L, Li D, Chen Y, Xu Y, Li L, Xiao H, Luo Z. Novel insight into the role of sulfur dioxide in fruits and vegetables: Chemical interactions, biological activity, metabolism, applications, and safety. Crit Rev Food Sci Nutr 2023:1-25. [PMID: 37128783 DOI: 10.1080/10408398.2023.2203737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Sulfur dioxide (SO2) are a category of chemical compounds widely used as additives in food industry. So far, the use of SO2 in fruit and vegetable industry has been indispensable although its safety concerns have been controversial. This article comprehensively reviews the chemical interactions of SO2 with the components of fruit and vegetable products, elaborates its mechanism of antimicrobial, anti-browning, and antioxidation, discusses its roles in regulation of sulfur metabolism, reactive oxygen species (ROS)/redox, resistance induction, and quality maintenance in fruits and vegetables, summarizes the application technology of SO2 and its safety in human (absorption, metabolism, toxicity, regulation), and emphasizes the intrinsic metabolism of SO2 and its consequences for the postharvest physiology and safety of fresh fruits and vegetables. In order to fully understand the benefits and risks of SO2, more research is needed to evaluate the molecular mechanisms of SO2 metabolism in the cells and tissues of fruits and vegetables, and to uncover the interaction mechanisms between SO2 and the components of fruits and vegetables as well as the efficacy and safety of bound SO2. This review has important guiding significance for adjusting an applicable definition of maximum residue limit of SO2 in food.
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Affiliation(s)
- Zhenbiao Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Jing Huang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Lei Wang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Dong Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yanpei Chen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yanqun Xu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Innovation Center, Zhejiang University, Ningbo, China
| | - Li Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Hang Xiao
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Zisheng Luo
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Innovation Center, Zhejiang University, Ningbo, China
- Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agri-Food Processing, Hangzhou, China
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12
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Pruteanu LL, Bailey DS, Grădinaru AC, Jäntschi L. The Biochemistry and Effectiveness of Antioxidants in Food, Fruits, and Marine Algae. Antioxidants (Basel) 2023; 12:antiox12040860. [PMID: 37107235 PMCID: PMC10135154 DOI: 10.3390/antiox12040860] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/05/2023] Open
Abstract
It is more effective to maintain good health than to regain it after losing it. This work focuses on the biochemical defense mechanisms against free radicals and their role in building and maintaining antioxidant shields, aiming to show how to balance, as much as possible, the situations in which we are exposed to free radicals. To achieve this aim, foods, fruits, and marine algae with a high antioxidant content should constitute the basis of nutritional elements, since natural products are known to have significantly greater assimilation efficiency. This review also gives the perspective in which the use of antioxidants can extend the life of food products, by protecting them from damage caused by oxidation as well as their use as food additives.
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Affiliation(s)
- Lavinia Lorena Pruteanu
- Department of Chemistry and Biology, North University Center at Baia Mare, Technical University of Cluj-Napoca, 430122 Baia Mare, Romania
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - David Stanley Bailey
- IOTA Pharmaceuticals Ltd., St Johns Innovation Centre, Cowley Road, Cambridge CB4 0WS, UK
| | - Andrei Cristian Grădinaru
- Department of Genetics, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” University of Life Sciences of Iaşi, 700490 Iaşi, Romania
| | - Lorentz Jäntschi
- Institute of Doctoral Studies, Babeş-Bolyai University, 400084 Cluj-Napoca, Romania
- Department of Physics and Chemistry, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania
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13
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He B, Zhang Z, Huang Z, Duan X, Wang Y, Cao J, Li L, He K, Nice EC, He W, Gao W, Shen Z. Protein persulfidation: Rewiring the hydrogen sulfide signaling in cell stress response. Biochem Pharmacol 2023; 209:115444. [PMID: 36736962 DOI: 10.1016/j.bcp.2023.115444] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
The past few decades have witnessed significant progress in the discovery of hydrogen sulfide (H2S) as a ubiquitous gaseous signaling molecule in mammalian physiology, akin to nitric oxide and carbon monoxide. As the third gasotransmitter, H2S is now known to exert a wide range of physiological and cytoprotective functions in the biological systems. However, endogenous H2S concentrations are usually low, and its potential biologic mechanisms responsible have not yet been fully clarified. Recently, a growing body of evidence has demonstrated that protein persulfidation, a posttranslational modification of cysteine residues (RSH) to persulfides (RSSH) elicited by H2S, is a fundamental mechanism of H2S-mediated signaling pathways. Persulfidation, as a biological switch for protein function, plays an important role in the maintenance of cell homeostasis in response to various internal and external stress stimuli and is also implicated in numerous diseases, such as cardiovascular and neurodegenerative diseases and cancer. In this review, the biological significance of protein persulfidation by H2S in cell stress response is reviewed providing a framework for understanding the multifaceted roles of H2S. A mechanism-guided perspective can help open novel avenues for the exploitation of therapeutics based on H2S-induced persulfidation in the context of diseases.
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Affiliation(s)
- Bo He
- West China School of Basic Medical Sciences & Forensic Medicine, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Zhe Zhang
- West China School of Basic Medical Sciences & Forensic Medicine, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Zhao Huang
- West China School of Basic Medical Sciences & Forensic Medicine, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Xirui Duan
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Yu Wang
- West China School of Basic Medical Sciences & Forensic Medicine, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Jiangjun Cao
- West China School of Basic Medical Sciences & Forensic Medicine, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Lei Li
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Kai He
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Edouard C Nice
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Weifeng He
- Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Military Medical University, Chongqing 400038, China.
| | - Wei Gao
- Clinical Genetics Laboratory, Affiliated Hospital & Clinical Medical College of Chengdu University, Chengdu 610081, China.
| | - Zhisen Shen
- Department of Otorhinolaryngology and Head and Neck Surgery, Affiliated Lihuili Hospital, Ningbo University, Ningbo 315040, Zhejiang, China.
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14
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Antidepressant-like effect of endogenous SO 2 on depression caused by chronic unpredictable mild stress. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1325-1336. [PMID: 36729188 DOI: 10.1007/s00210-023-02405-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/23/2023] [Indexed: 02/03/2023]
Abstract
Sulfur dioxide (SO2) is a toxic gas with harmful effects on various organs. However, recent studies have confirmed the protective effect of SO2 on ischemic heart disease, atherosclerosis, and lung infections. Therefore, the present study was designed to investigate the effect of endogenous SO2 on depression. The chronic unpredictable mild stress (CUMS) model was performed to cause depression. Depression-like behaviors in animals were determined using an open-field test, forced swimming test, and sucrose consumption. Animal spatial learning and memory were also assessed using the Morris water maze. Besides, the oxidative status of the hippocampus and serum corticosterone level were evaluated. A reduction in the tendency to consume sucrose, mobility, and curiosity, as well as learning and memory disorders were observed in CUMS animals. Depressed animals treated with SO2 revealed a significant improvement in behavioral and cognitive functions. SO2 also reduced neuronal damage and lipid peroxidation of the hippocampus and serum corticosterone level in the CUMS group. Various shreds of evidence support a mutual relationship between inflammation and depression; also, growing studies show the role of oxidative stress in the pathogenesis of mood-related disorders such as depression. This study indicated that increased hippocampal malondialdehyde (MDA) and serum corticosterone levels can be due to the existence of oxidative stress and possible activation of inflammatory processes. SO2 donors diminished MDA and corticosterone levels in depressed animals. According to the study results, SO2 may be able to reduce tissue damage and eventually behavioral disorders caused by depression by lowering oxidative stress and inflammation.
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15
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Rational design of a negative photochromic spiropyran-containing fluorescent polymeric nanoprobe for sulfur dioxide derivative ratiometric detection and cell imaging. Anal Bioanal Chem 2023; 415:715-724. [PMID: 36520201 DOI: 10.1007/s00216-022-04462-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/03/2022] [Accepted: 11/23/2022] [Indexed: 12/23/2022]
Abstract
It is highly desirable to develop high-performance ratiometric fluorescent probes for SO2 derivative detection and realize their application in biological imaging. In this study, we report the rational design of a novel negative photochromic spiropyran derivative, spiro[azahomoadamantane-pyran] (MAHD-SP), with notable orange fluorescence in its stable ring-opened state without UV regulation. The unsaturated double bond of MAHD-SP underwent the Michael addition reaction of the SO2 derivative, making the fluorescence quenching of MAHD-SP obvious. Then, MAHD-SP, a fluorescent conjugated polymer PFO and a polymeric surfactant PEO113-b-PS49 were used to construct a ratiometric fluorescent polymeric nanoprobe (RFPN) via a coprecipitation method. The probe exhibited high sensitivity and selectivity for the ratiometric detection of SO2 derivatives in pure aqueous solutions. Moreover, the good biocompatibility of RFPN can be used to visualize exogenous and endogenous SO2 derivative generation in living cells.
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16
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Deng G, Muqadas M, Adlat S, Zheng H, Li G, Zhu P, Nasser MI. Protective Effect of Hydrogen Sulfide on Cerebral Ischemia-Reperfusion Injury. Cell Mol Neurobiol 2023; 43:15-25. [PMID: 35066714 DOI: 10.1007/s10571-021-01166-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 11/01/2021] [Indexed: 01/07/2023]
Abstract
The brain is the most sensitive organ to hypoxia in the human body. Hypoxia in the brain will lead to damage to local brain tissue. When the blood supply of ischemic brain tissue is restored, the damage will worsen, that is, cerebral ischemia-reperfusion injury. Hydrogen sulfide (H2S) is a gaseous signal molecule and a novel endogenous neuroregulator. Indeed, different concentrations of H2S have different effects on neurons. Low concentration of H2S can play an important protective role in cerebral ischemia-reperfusion injury by inducing anti-oxidative stress injury, inhibition of inflammatory response, inhibition of cell apoptosis, reduction of cerebrovascular endothelial cell injury, regulation of autophagy, and other ways, which provides a new idea for clinical diagnosis and treatment of related diseases. This review aims to report the recent research progress on the dual effect of H2S on brain tissue during cerebral ischemia/reperfusion injury.
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Affiliation(s)
- Gang Deng
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510100, Guangdong, People's Republic of China.,Guangdong Academy of Medical Sciences, 106 ZhongshanEr Road, Guangzhou, 510080, People's Republic of China
| | - Masood Muqadas
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510100, Guangdong, People's Republic of China.,Guangdong Academy of Medical Sciences, 106 ZhongshanEr Road, Guangzhou, 510080, People's Republic of China
| | - Salah Adlat
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510100, Guangdong, People's Republic of China.,Guangdong Academy of Medical Sciences, 106 ZhongshanEr Road, Guangzhou, 510080, People's Republic of China
| | - Haiyun Zheng
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510100, Guangdong, People's Republic of China.,Guangdong Academy of Medical Sciences, 106 ZhongshanEr Road, Guangzhou, 510080, People's Republic of China
| | - Ge Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510100, Guangdong, People's Republic of China. .,Guangdong Academy of Medical Sciences, 106 ZhongshanEr Road, Guangzhou, 510080, People's Republic of China.
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510100, Guangdong, People's Republic of China. .,Guangdong Academy of Medical Sciences, 106 ZhongshanEr Road, Guangzhou, 510080, People's Republic of China.
| | - M I Nasser
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510100, Guangdong, People's Republic of China. .,Guangdong Academy of Medical Sciences, 106 ZhongshanEr Road, Guangzhou, 510080, People's Republic of China.
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17
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Liu TZ, Yuan YC, Zhao BX. An imidazo[1,5-α]pyridines-based ratiometric fluorescent probe for sensing sulfur dioxide derivatives in real samples based on a FRET mechanism. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 282:121694. [PMID: 35932603 DOI: 10.1016/j.saa.2022.121694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/19/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
A novel fluorescence resonance energy transfer (FRET)-based ratiometric emission fluorescent probe AT was designed and developed in which the imidazo[1,5-α]pyridine was served as a FRET donor and tricyanofuran (TCF) as the FRET acceptor to detect SO32-/HSO3- based on the Michael addition reaction. Probe AT had a high energy transfer efficiency (95%) and a large pseudo-Stokes shift (259 nm) in EtOH/PBS buffer (5/5, v/v). It also possessed good selectivity and quick response to SO32-/HSO3-. There was good linearity between the ratio of fluorescence intensity (F499/F645) and the concentrations of SO32-/HSO3- in the ranges of 1.5-7.5 μM and 9-20 μM, with calculated detection limits (LOD) of 55 nM. In addition, the probe could also detect the concentrations of SO32-/HSO3- in real samples such as environmental water and sugar, allowing the probe to be used in a variety of applications.
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Affiliation(s)
- Tian-Zhen Liu
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China
| | - Yu-Chang Yuan
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China.
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18
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Water-soluble dual lysosome/mitochondria-targeted fluorescent probe for detection of SO2 in water, food, herb, and live cells. Bioorg Chem 2022; 129:106189. [DOI: 10.1016/j.bioorg.2022.106189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/24/2022] [Accepted: 09/30/2022] [Indexed: 11/21/2022]
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19
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Zhao J, Wu Q, Yang T, Nie L, Liu S, Zhou J, Chen J, Jiang Z, Xiao T, Yang J, Chu C. Gaseous signal molecule SO 2 regulates autophagy through PI3K/AKT pathway inhibits cardiomyocyte apoptosis and improves myocardial fibrosis in rats with type II diabetes. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2022; 26:541-556. [PMID: 36302628 PMCID: PMC9614393 DOI: 10.4196/kjpp.2022.26.6.541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/06/2022]
Abstract
Myocardial fibrosis is a key link in the occurrence and development of diabetic cardiomyopathy. Its etiology is complex, and the effect of drugs is not good. Cardiomyocyte apoptosis is an important cause of myocardial fibrosis. The purpose of this study was to investigate the effect of gaseous signal molecule sulfur dioxide (SO2) on diabetic myocardial fibrosis and its internal regulatory mechanism. Masson and TUNEL staining, Western-blot, transmission electron microscopy, RT-qPCR, immunofluorescence staining, and flow cytometry were used in the study, and the interstitial collagen deposition, autophagy, apoptosis, and changes in phosphatidylinositol 3-kinase (PI3K)/AKT pathways were evaluated from in vivo and in vitro experiments. The results showed that diabetic myocardial fibrosis was accompanied by cardiomyocyte apoptosis and down-regulation of endogenous SO2-producing enzyme aspartate aminotransferase (AAT)1/2. However, exogenous SO2 donors could up-regulate AAT1/2, reduce apoptosis of cardiomyocytes induced by diabetic rats or high glucose, inhibit phosphorylation of PI3K/AKT protein, up-regulate autophagy, and reduce interstitial collagen deposition. In conclusion, the results of this study suggest that the gaseous signal molecule SO2 can inhibit the PI3K/AKT pathway to promote cytoprotective autophagy and inhibit cardiomyocyte apoptosis to improve myocardial fibrosis in diabetic rats. The results of this study are expected to provide new targets and intervention strategies for the prevention and treatment of diabetic cardiomyopathy.
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Affiliation(s)
- Junxiong Zhao
- Department of Pharmacy, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China,Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China
| | - Qian Wu
- Department of General Practice, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China
| | - Ting Yang
- Department of Pharmacy, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China,School of Pharmaceutical Science of University of South China, Hengyang 421000, China
| | - Liangui Nie
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China
| | - Shengquan Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China
| | - Jia Zhou
- Department of Ultrasound Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China
| | - Jian Chen
- Department of Critical Care Medicine, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China
| | - Zhentao Jiang
- Department of Cardiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China
| | - Ting Xiao
- Department of Cardiology, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guang-dong Medical University, Shenzhen 518000, China,Ting Xiao, E-mail:
| | - Jun Yang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China,Jun Yang, E-mail:
| | - Chun Chu
- Department of Pharmacy, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China,Correspondence Chun Chu, E-mail:
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20
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Ye Y, Liu C, Wang L, Shen XC, Chen H. A dual-positive charges strategy for sensitive and quantitative detection of mitochondrial SO 2 in cancer cells and tumor tissue. Talanta 2022; 249:123699. [PMID: 35738208 DOI: 10.1016/j.talanta.2022.123699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/12/2022] [Accepted: 06/15/2022] [Indexed: 12/16/2022]
Abstract
Mitochondrial sulfur dioxide (SO2) correlates with various activities of the development and progression of cancer. However, the specific biological function of mitochondrial SO2 in cancerous cells remains amphibolous. Therefore, it is of great significance and urgency to develop a rapid and accurate method to monitor the dynamic fluctuations of mitochondrial SO2 in cancer cells and tumor tissue. Herein, in this work, we introduce a "dual-positive charges" strategy for simultaneously enhancing the sensitivity and mitochondrial targeting ability of SO2 detection in cancer cells for the first time. For proof of concept, the dual positive charged probe DCP was rationally designed and synthesized based on chromenoquinoline fluorophore. Correspondingly, we also synthesized single positive charged SO2 probe MCP as controls. As expected, the detection limit of dual positive charged DCP for SO2 detection was 0.06 μM, which was 7-fold lower than that of the single positive charged probe MCP. Besides, DCP showed a higher mitochondrial co-localization coefficient in cancer cells and it could distinguish cancer cells (HeLa) and normal cells (L929) in co-incubated system. In a word, the evidence suggested that the implementation of dual-positive charges strategy greatly improved the sensitivity to SO2 response and the specificity of mitochondrial targeting in cancer cells. Finally, DCP was successfully applied to monitor SO2 fluctuation in cancer cells, tumor tissue and living zebrafish. Thus, this work provides a powerful tool to investigate the role of mitochondrial SO2 in cancer and other related diseases.
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Affiliation(s)
- Yuan Ye
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, PR China
| | - Chunli Liu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, PR China
| | - Liping Wang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, PR China
| | - Xing-Can Shen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, PR China
| | - Hua Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, PR China.
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21
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Zheng D, Zhang T, Huang Y, Chen H, Li Y, Cao Z, Deng Y, Fang Y, Peng C. Phenoxazine-conjugated-benzoeindolium as a novel mitochondria-targeted fluorescent probe for turn-on detection of sulfur dioxide and its derivatives in vivo. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107192] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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22
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Gupta R, Sahu M, Tripathi R, Ambasta RK, Kumar P. Protein S-sulfhydration: Unraveling the prospective of hydrogen sulfide in the brain, vasculature and neurological manifestations. Ageing Res Rev 2022; 76:101579. [PMID: 35124235 DOI: 10.1016/j.arr.2022.101579] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/30/2022] [Accepted: 02/01/2022] [Indexed: 02/08/2023]
Abstract
Hydrogen sulfide (H2S) and hydrogen polysulfides (H2Sn) are essential regulatory signaling molecules generated by the entire body, including the central nervous system. Researchers have focused on the classical H2S signaling from the past several decades, whereas the last decade has shown the emergence of H2S-induced protein S-sulfhydration signaling as a potential therapeutic approach. Cysteine S-persulfidation is a critical paradigm of post-translational modification in the process of H2S signaling. Additionally, studies have shown the cross-relationship between S-sulfhydration and other cysteine-induced post-translational modifications, namely nitrosylation and carbonylation. In the central nervous system, S-sulfhydration is involved in the cytoprotection through various signaling pathways, viz. inflammatory response, oxidative stress, endoplasmic reticulum stress, atherosclerosis, thrombosis, and angiogenesis. Further, studies have demonstrated H2S-induced S-sulfhydration in regulating different biological processes, such as mitochondrial integrity, calcium homeostasis, blood-brain permeability, cerebral blood flow, and long-term potentiation. Thus, protein S-sulfhydration becomes a crucial regulatory molecule in cerebrovascular and neurodegenerative diseases. Herein, we first described the generation of intracellular H2S followed by the application of H2S in the regulation of cerebral blood flow and blood-brain permeability. Further, we described the involvement of S-sulfhydration in different biological and cellular functions, such as inflammatory response, mitochondrial integrity, calcium imbalance, and oxidative stress. Moreover, we highlighted the importance of S-sulfhydration in cerebrovascular and neurodegenerative diseases.
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23
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Sun C, Yu W, lv B, Zhang Y, Du S, Zhang H, Du J, Jin H, Sun Y, Huang Y. Role of hydrogen sulfide in sulfur dioxide production and vascular regulation. PLoS One 2022; 17:e0264891. [PMID: 35298485 PMCID: PMC8929647 DOI: 10.1371/journal.pone.0264891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 02/19/2022] [Indexed: 12/03/2022] Open
Abstract
Both hydrogen sulfide (H2S) and sulfur dioxide (SO2) are produced endogenously from the mammalian metabolic pathway of sulfur-containing amino acids and play important roles in several vascular diseases. However, their interaction during the control of vascular function has not been fully clear. Here, we investigated the potential role of H2S in SO2 production and vascular regulation in vivo and in vitro. Wistar rats were divided into the vehicle, SO2, DL-propargylglycine (PPG) + SO2, β-cyano-L-alanine (BCA) + SO2 and sodium hydrosulfide (NaHS) + SO2 groups. SO2 donor was administered with or without pre-administration of PPG, BCA or NaHS for 30 min after blood pressure was stabilized for 1 h, and then, the change in blood pressure was detected by catheterization via the common carotid artery. Rat plasma SO2 and H2S concentrations were measured by high performance liquid chromatography and sensitive sulfur electrode, respectively. The isolated aortic rings were prepared for the measurement of changes in vasorelaxation stimulated by SO2 after PPG, BCA or NaHS pre-incubation. Results showed that the intravenous injection of SO2 donors caused transient hypotension in rats compared with vehicle group. After PPG or BCA pretreatment, the plasma H2S content decreased but the SO2 content increased markedly, and the hypotensive effect of SO2 was significantly enhanced. Conversely, NaHS pretreatment upregulated the plasma H2S content but reduced SO2 content, and attenuated the hypotensive effect of SO2. After PPG or BCA pre-incubation, the vasorelaxation response to SO2 was enhanced significantly. While NaHS pre-administration weakened the SO2-induced relaxation in aortic rings. In conclusion, our in vivo and in vitro data indicate that H2S negatively controls the plasma content of SO2 and the vasorelaxant effect under physiological conditions.
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Affiliation(s)
- Chufan Sun
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Wen Yu
- Department of Cardiology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Boyang lv
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yanan Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Shuxu Du
- Department of Pediatrics, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Heng Zhang
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yan Sun
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- * E-mail: (YH); (YS)
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- * E-mail: (YH); (YS)
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Zhao X, Cao Y, Jin H, Wang X, Zhang L, Zhang Y, Yu Y, Huang Y, Gao Y, Zhang J. Hydrogen Sulfide Promotes Thyroid Hormone Synthesis and Secretion by Upregulating Sirtuin-1. Front Pharmacol 2022; 13:838248. [PMID: 35222046 PMCID: PMC8866871 DOI: 10.3389/fphar.2022.838248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/17/2022] [Indexed: 11/15/2022] Open
Abstract
Objective: One mechanism of hypothyroidism involves the disruption of thyroid hormone synthesis and secretion by thyrocytes. Hydrogen sulfide (H2S), as a gas signaling molecule, participates in many physiopathologic processes by upregulating sirtuin-1 (SIRT1). The aim of the current study was to explore whether H2S promotes the synthesis and secretion of thyroid hormones by upregulating SIRT1. Methods: Real-time PCR and immunohistochemistry were used to detect the mRNA and protein expression of H2S-generating enzymes in normal human thyroid tissues. Serum H2S concentrations from hypothyroid patients (n = 32) and euthyroid participants (n = 41) were detected by H2S-selective sensors. Thirty-one Sprague–Dawley rats were divided into control group (n = 10), hypothyroid group (induced by MMI, n = 10) and hypothyroid + NaHS group (n = 11), and the FT4, TT4 and TSH levels were assayed. Human primary thyrocytes were incubated with H2S donor sodium hydrosulfide (NaHS) or NaHS plus SIRT1 inhibitor (EX527) in vitro. Thyroid hormone synthesis- and secretion-related proteins [thyroid peroxidase (TPO), sodium iodide transporter (NIS), Pendrin, monocarboxylic acid transporter 8 (MCT8)] were analyzed by real-time PCR and Western blot. Results: H2S levels in serum from hypothyroid patients were decreased compared to those from euthyroid participants (p < .05), and serum H2S levels were positively correlated with FT3, FT4, TT3, and TT4 levels in all subjects (all p < .0001). In vivo, NaHS promoted thyroid function in hypothyroid rats (p < .05). In vitro, H2S was detected in supernatant, and CBS mRNA was higher than CSE and 3-MPST in human primary thyrocytes (p < .05). The protein levels of TPO, NIS, Pendrin and MCT8 were upregulated in a concentration-dependent manner for NaHS in thyrocytes. After blocking SIRT1 with EX527, we found that the increasing levels of TPO, NIS, Pendrin, and MCT8 and TPO activity were downregulated in thyrocytes incubated with NaHS, and FT4 levels in the cell supernatant were also decreased significantly (all p < .05). Conclusion: H2S is mainly generated in thyrocytes by CBS. Serum H2S levels are decreased with hypothyroidism. H2S promotes the synthesis and secretion of thyroid hormones and the expression of related molecules by upregulating SIRT1.
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Affiliation(s)
- Xue Zhao
- Department of Endocrinology, Peking University First Hospital, Beijing, China
| | - Yedi Cao
- Department of Endocrinology, Peking University First Hospital, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Xiuli Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Lanbo Zhang
- Department of General Surgery, Peking University First Hospital, Beijing, China
| | - Yang Zhang
- Department of Endocrinology, Peking University First Hospital, Beijing, China
| | - Yang Yu
- Department of Endocrinology, Peking University First Hospital, Beijing, China
| | - Youyuan Huang
- Department of Endocrinology, Peking University First Hospital, Beijing, China
| | - Ying Gao
- Department of Endocrinology, Peking University First Hospital, Beijing, China
- *Correspondence: Ying Gao,
| | - Junqing Zhang
- Department of Endocrinology, Peking University First Hospital, Beijing, China
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Huang Y, Zhang H, Lv B, Tang C, Du J, Jin H. Sulfur Dioxide: Endogenous Generation, Biological Effects, Detection, and Therapeutic Potential. Antioxid Redox Signal 2022; 36:256-274. [PMID: 34538110 DOI: 10.1089/ars.2021.0213] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: Previously, sulfur dioxide (SO2) was recognized as an air pollutant. However, it is found to be endogenously produced in mammalian tissues. As a new gasotransmitter, SO2 is involved in regulating the structure and function of blood vessels, heart, lung, gastrointestinal tract, nervous system, etc.Recent Advances: Increasing evidence showed that endogenous SO2 regulates cardiovascular physiological processes, such as blood pressure control, vasodilation, maintenance of the normal vascular structure, and cardiac negative inotropy. Under pathological conditions including hypertension, atherosclerosis, vascular calcification, aging endothelial dysfunction, myocardial injury, myocardial hypertrophy, diabetic myocardial fibrosis, sepsis-induced cardiac dysfunction, pulmonary hypertension, acute lung injury, colitis, epilepsy-related brain injury, depression and anxiety, and addictive drug reward memory consolidation, endogenous SO2 protects against the pathological changes via different molecular mechanisms and the disturbed SO2/aspartate aminotransferase pathway is likely involved in the mechanisms for the earlier mentioned pathologic processes. Critical Issues: A comprehensive understanding of the biological effects of endogenous SO2 is extremely important for the development of novel SO2 therapy. In this review, we summarized the biological effects, mechanism of action, SO2 detection methods, and its related prodrugs. Future Directions: Further studies should be conducted to understand the effects of endogenous SO2 in various physiological and pathophysiological processes and clarify its underlying mechanisms. More efficient and accurate SO2 detection methods, as well as specific and effective SO2-releasing systems should be designed for the treatment and prevention of clinical related diseases. The translation from SO2 basic medical research to its clinical application is also worthy of further study. Antioxid. Redox Signal. 36, 256-274.
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Affiliation(s)
- Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Heng Zhang
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Boyang Lv
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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Sun Y, Wang Y, Lu Y, Kong X, Wei H, Chen Q, Yan M, Dong B. Mitochondria-targeted and FRET-based fluorescent probe for the imaging of endogenous SO 2 in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 265:120397. [PMID: 34547682 DOI: 10.1016/j.saa.2021.120397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/08/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Sulfur dioxide (SO2) is an important signal molecule in living systems, and plays a wide range of physiological functions. Real-time and in situ detection of the dynamic balance of SO2 in mitochondria is of great significance to in-depth study its biological roles. Herein, we have developed a mitochondria-targeted fluorescent probe Nap-L based on the FRET mechanism to detect SO2 in living cells. The probe Nap-L employed naphthalimide and positively charged benzopyridine as the donor and acceptor in the FRET system, and emitted green and red fluorescence under excitation. In respond to SO2, the nucleophilic addition of bisulfite to benzopyridine and then interrupted the FRET process from naphthalimide to benzopyridine fluorophore, thereby triggering an obvious change in the fluorescence ratio. The probe Nap-L showed high selectivity to SO2 over the biothiols (Hcy, GSH, Cys) and other biologically related species. Biological experiments suggested that the probe Nap-L mainly distributed in mitochondria, and can be successfully used to detect mitochondrial endogenous SO2 in living cells.
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Affiliation(s)
- Yaru Sun
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China
| | - Yan Wang
- Organic Reaction in Aqueous Engineering Research Center of Shandong Province, Chemical Technology Academy of Shandong Province, Jinan 250014, Shandong, China.
| | - Yaru Lu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China
| | - Xiuqi Kong
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China
| | - Hua Wei
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China
| | - Qingxian Chen
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China
| | - Mei Yan
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China.
| | - Baoli Dong
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China.
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Song Y, Song J, Zhu Z, Peng H, Ding X, Yang F, Li K, Yu X, Yang G, Tao Y, Bu D, Tang C, Huang Y, Du J, Jin H. Compensatory role of endogenous sulfur dioxide in nitric oxide deficiency-induced hypertension. Redox Biol 2021; 48:102192. [PMID: 34818607 PMCID: PMC8626683 DOI: 10.1016/j.redox.2021.102192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/11/2021] [Accepted: 11/17/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE This study aimed to determine the communicational pattern of gaseous signaling molecules sulfur dioxide (SO2) and nitric oxide (NO) between vascular endothelial cells (VECs) and vascular smooth muscle cells (VSMCs), and elucidate the compensatory role and significance of endogenous SO2 in the development of hypertension due to NO deficiency. APPROACH AND RESULTS Blood pressure was monitored by the tail-cuff and implantable physiological signal telemetry in L-nitro-arginine methyl ester (l-NAME)-induced hypertensive mice, and structural alterations of mouse aortic vessels were detected by the elastic fiber staining method. l-NAME-treated mice showed decreased plasma NO levels, increased SO2 levels, vascular remodeling, and increased blood pressure, and application of l-aspartate-β-hydroxamate, which inhibits SO2 production, further aggravated vascular structural remodeling and increased blood pressure. Moreover, in a co-culture system of HAECs and HASMCs, NO from HAECs did not influence aspartate aminotransferase (AAT)1 protein expression but decreased AAT1 activity in HASMCs, thereby resulting in the inhibition of endogenous SO2 production. Furthermore, NO promoted S-nitrosylation of AAT1 protein in HASMCs and purified AAT1 protein. Liquid chromatography with tandem mass spectrometry showed that the Cys192 site of AAT1 purified protein was modified by S-nitrosylation. In contrast, dithiothreitol or C192S mutations in HASMCs blocked NO-induced AAT1 S-nitrosylation and restored AAT1 enzyme activity. CONCLUSION Endothelium-derived NO inhibits AAT activity by nitrosylating AAT1 at the Cys192 site and reduces SO2 production in HASMCs. Our findings suggest that SO2 acts as a compensatory defense system to antagonize vascular structural remodeling and hypertension when the endogenous NO pathway is disturbed.
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Affiliation(s)
- Yunjia Song
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Jiaru Song
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Zhigang Zhu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hanlin Peng
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Xiang Ding
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Fuquan Yang
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaoqi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Guosheng Yang
- Laboratory Animal Facility, Peking University First Hospital, Beijing, 100034, China
| | - Yinghong Tao
- Laboratory Animal Facility, Peking University First Hospital, Beijing, 100034, China
| | - Dingfang Bu
- Central Laboratory, Peking University First Hospital, Beijing, 100034, China
| | - Chaoshu Tang
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China; Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China.
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A series of D-π-A and A-π-A’ fluorescent probes were used to explore the influence of terminal groups on the properties of the hemicyanine probes. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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TNFα regulates the expression of the CSE gene in HUVEC. Exp Ther Med 2021; 22:1233. [PMID: 34539829 DOI: 10.3892/etm.2021.10667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/11/2021] [Indexed: 11/05/2022] Open
Abstract
The hydrogen sulfide (H2S)/cystathionine γ-lyase (CSE) signaling pathway is involved in several inflammatory conditions, where tumor necrosis factor-α (TNFα) is one of the inflammatory cytokines activated during sepsis. Therefore, the present study investigated the role of the NF-κB transcription factor binding site in the transcriptional regulation of the CSE gene in 293T cells following treatment with TNFα using luciferase assays, as well as using western blotting and reverse transcription-quantitative PCR to examine the effect of TNFα on CSE expression in HUVECs. After transfected 293T cells were incubated with various concentrations of TNFα for 1, 3, and 6 h, the wild-type promoter of the CSE gene increased significantly at 1 h compared to 0 h. By contrast, after the transfected 293T cells were incubated with various concentrations of TNFα for 1 h, the mutant-type promoter activity of the CSE gene decreased significantly compared to the wild-type. These results revealed that the DNA sequence GGGACATTCC on the CSE gene promoter was directly associated with the transcriptional regulation of the CSE gene in Human cells (293T cells) that's were treated with TNFα. This suggests that TNFα affects CSE gene expression, such that vascular endothelial cells respond to TNFα in the blood by regulating CSE expression. The regulatory mechanisms associated with the effects of TNFα on the transcriptional regulation of the CSE gene in HUVECs and the NF-κB pathway warrant further investigation.
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Huang Y, Zhang H, Lv B, Tang C, Du J, Jin H. Endogenous sulfur dioxide is a new gasotransmitter with promising therapeutic potential in cardiovascular system. Sci Bull (Beijing) 2021; 66:1604-1607. [PMID: 36654290 DOI: 10.1016/j.scib.2021.04.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Heng Zhang
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Boyang Lv
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing 100191, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing 100191, China.
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.
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Abstract
Sulfur dioxide (SO2) was previously known as a harmful gas in air pollution. Recently, it was reported that SO2 can be endogenously generated in cardiovascular tissues. Many studies have revealed that endogenous SO2 has important physiological and pathophysiological significance and pharmacological potential. As a novel gasotransmitter, SO2 has important regulatory effects on the heart. It has a dose-dependent negative inotropic effect on cardiac function, in which L-type calcium channels are involved. SO2 can also attenuate myocardial injury caused by various harmful stimuli and play an important role in myocardial ischemia-reperfusion injury and myocardial hypertrophy. These effects are thought to be linked to its ability to reduce inflammation and as an antioxidant. In addition, SO2 regulates cardiomyocyte apoptosis and autophagy. Therefore, endogenous SO2 plays an important role in maintaining cardiovascular system homeostasis. In the present review, the literature concerning the metabolism of endogenous SO2, its cardiac toxicological effects and physiological regulatory effects, mechanisms for SO2-mediated myocardial protection and its pharmacological applications are summarized and discussed.
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Correia Y, Scheel J, Gupta S, Wang K. Placental mitochondrial function as a driver of angiogenesis and placental dysfunction. Biol Chem 2021; 402:887-909. [PMID: 34218539 DOI: 10.1515/hsz-2021-0121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 06/09/2021] [Indexed: 12/12/2022]
Abstract
The placenta is a highly vascularized and complex foetal organ that performs various tasks, crucial to a healthy pregnancy. Its dysfunction leads to complications such as stillbirth, preeclampsia, and intrauterine growth restriction. The specific cause of placental dysfunction remains unknown. Recently, the role of mitochondrial function and mitochondrial adaptations in the context of angiogenesis and placental dysfunction is getting more attention. The required energy for placental remodelling, nutrient transport, hormone synthesis, and the reactive oxygen species leads to oxidative stress, stemming from mitochondria. Mitochondria adapt to environmental changes and have been shown to adjust their oxygen and nutrient use to best support placental angiogenesis and foetal development. Angiogenesis is the process by which blood vessels form and is essential for the delivery of nutrients to the body. This process is regulated by different factors, pro-angiogenic factors and anti-angiogenic factors, such as sFlt-1. Increased circulating sFlt-1 levels have been linked to different preeclamptic phenotypes. One of many effects of increased sFlt-1 levels, is the dysregulation of mitochondrial function. This review covers mitochondrial adaptations during placentation, the importance of the anti-angiogenic factor sFlt-1in placental dysfunction and its role in the dysregulation of mitochondrial function.
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Affiliation(s)
- Yolanda Correia
- Aston Medical School, College of Health & Life Sciences, Aston University, Aston Triangle, BirminghamB4 7ET, UK
| | - Julia Scheel
- Department of Systems Biology and Bioinformatics, University of Rostock, D-18051Rostock, Germany
| | - Shailendra Gupta
- Department of Systems Biology and Bioinformatics, University of Rostock, D-18051Rostock, Germany
| | - Keqing Wang
- Aston Medical School, College of Health & Life Sciences, Aston University, Aston Triangle, BirminghamB4 7ET, UK
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Roubenne L, Marthan R, Le Grand B, Guibert C. Hydrogen Sulfide Metabolism and Pulmonary Hypertension. Cells 2021; 10:cells10061477. [PMID: 34204699 PMCID: PMC8231487 DOI: 10.3390/cells10061477] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/31/2021] [Accepted: 06/09/2021] [Indexed: 02/07/2023] Open
Abstract
Pulmonary hypertension (PH) is a severe and multifactorial disease characterized by a progressive elevation of pulmonary arterial resistance and pressure due to remodeling, inflammation, oxidative stress, and vasoreactive alterations of pulmonary arteries (PAs). Currently, the etiology of these pathological features is not clearly understood and, therefore, no curative treatment is available. Since the 1990s, hydrogen sulfide (H2S) has been described as the third gasotransmitter with plethoric regulatory functions in cardiovascular tissues, especially in pulmonary circulation. Alteration in H2S biogenesis has been associated with the hallmarks of PH. H2S is also involved in pulmonary vascular cell homeostasis via the regulation of hypoxia response and mitochondrial bioenergetics, which are critical phenomena affected during the development of PH. In addition, H2S modulates ATP-sensitive K+ channel (KATP) activity, and is associated with PA relaxation. In vitro or in vivo H2S supplementation exerts antioxidative and anti-inflammatory properties, and reduces PA remodeling. Altogether, current findings suggest that H2S promotes protective effects against PH, and could be a relevant target for a new therapeutic strategy, using attractive H2S-releasing molecules. Thus, the present review discusses the involvement and dysregulation of H2S metabolism in pulmonary circulation pathophysiology.
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Affiliation(s)
- Lukas Roubenne
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Avenue du Haut-Lévêque, F-33604 Pessac, France; (L.R.); (R.M.)
- Centre de Recherche Cardio-Thoracique de Bordeaux, Univ Bordeaux, U1045, 146 Rue Léo Saignat, F-33000 Bordeaux, France
- OP2 Drugs, Avenue du Haut Lévêque, F-33604 Pessac, France;
| | - Roger Marthan
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Avenue du Haut-Lévêque, F-33604 Pessac, France; (L.R.); (R.M.)
- Centre de Recherche Cardio-Thoracique de Bordeaux, Univ Bordeaux, U1045, 146 Rue Léo Saignat, F-33000 Bordeaux, France
- CHU de Bordeaux, Avenue du Haut Lévêque, F-33604 Pessac, France
| | - Bruno Le Grand
- OP2 Drugs, Avenue du Haut Lévêque, F-33604 Pessac, France;
| | - Christelle Guibert
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Avenue du Haut-Lévêque, F-33604 Pessac, France; (L.R.); (R.M.)
- Centre de Recherche Cardio-Thoracique de Bordeaux, Univ Bordeaux, U1045, 146 Rue Léo Saignat, F-33000 Bordeaux, France
- Correspondence:
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Recent advances in fluorescent probes for cellular antioxidants: Detection of NADH, hNQO1, H2S, and other redox biomolecules. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213613] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Huang YQ, Jin HF, Zhang H, Tang CS, Du JB. Interaction among Hydrogen Sulfide and Other Gasotransmitters in Mammalian Physiology and Pathophysiology. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1315:205-236. [PMID: 34302694 DOI: 10.1007/978-981-16-0991-6_9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hydrogen sulfide (H2S), nitric oxide (NO), carbon monoxide (CO), and sulfur dioxide (SO2) were previously considered as toxic gases, but now they are found to be members of mammalian gasotransmitters family. Both H2S and SO2 are endogenously produced in sulfur-containing amino acid metabolic pathway in vivo. The enzymes catalyzing the formation of H2S are mainly CBS, CSE, and 3-MST, and the key enzymes for SO2 production are AAT1 and AAT2. Endogenous NO is produced from L-arginine under catalysis of three isoforms of NOS (eNOS, iNOS, and nNOS). HO-mediated heme catabolism is the main source of endogenous CO. These four gasotransmitters play important physiological and pathophysiological roles in mammalian cardiovascular, nervous, gastrointestinal, respiratory, and immune systems. The similarity among these four gasotransmitters can be seen from the same and/or shared signals. With many studies on the biological effects of gasotransmitters on multiple systems, the interaction among H2S and other gasotransmitters has been gradually explored. H2S not only interacts with NO to form nitroxyl (HNO), but also regulates the HO/CO and AAT/SO2 pathways. Here, we review the biosynthesis and metabolism of the gasotransmitters in mammals, as well as the known complicated interactions among H2S and other gasotransmitters (NO, CO, and SO2) and their effects on various aspects of cardiovascular physiology and pathophysiology, such as vascular tension, angiogenesis, heart contractility, and cardiac protection.
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Affiliation(s)
- Ya-Qian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hong-Fang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China.
| | - Heng Zhang
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Chao-Shu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing, China
| | - Jun-Bao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China.
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Tian X, Zhou D, Zhang Y, Song Y, Zhang Q, Bu D, Sun Y, Wu L, Long Y, Tang C, Du J, Huang Y, Jin H. Persulfidation of transcription factor FOXO1 at cysteine 457: A novel mechanism by which H 2S inhibits vascular smooth muscle cell proliferation. J Adv Res 2020; 27:155-164. [PMID: 33318874 PMCID: PMC7728583 DOI: 10.1016/j.jare.2020.06.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 02/06/2023] Open
Abstract
FOXO1 is involved in the inhibitory effect of H2S on vascular smooth muscle cell proliferation. H2S inhibits vascular smooth muscle cell proliferation by maintaining FOXO1 activity. H2S preserves FOXO1 activity by persulfidation. H2S persulfidates FOXO1 at Cys457 and subsequently prevents FOXO1 phosphorylation at Ser256. The results provide new ideas for therapeutic strategies for anti-vascular remodeling.
Introduction The proliferation of vascular smooth muscle cells (VSMCs) is an important physiological and pathological basis for many cardiovascular diseases. Endogenous hydrogen sulfide (H2S), the third gasotransmitter, is found to preserve vascular structure by inhibiting VSMC proliferation. However, the mechanism by which H2S suppresses VSMC proliferation has not been fully clear. Objectives This study aimed to explore whether H2S persulfidates the transcription factor FOXO1 to inhibit VSMC proliferation. Methods After the proliferation of VSMC A7r5 cells was induced by endothelin-1 (ET-1), FOXO1 phosphorylation and proliferating cell nuclear antigen (PCNA) expression were detected by Western blotting, the degree of FOXO1 nuclear exclusion and PCNA fluorescent signals in the nucleus were detected by immunofluorescence, and the persulfidation of FOXO1 was measured through a biotin switch assay. Results The results showed that ET-1 stimulation increased cell proliferation, FOXO1 phosphorylation and FOXO1 nuclear exclusion to the cytoplasm in the cells. However, pretreatment with NaHS, an H2S donor, successfully abolished the ET-1-induced increases in the VSMC proliferation, FOXO1 phosphorylation, and FOXO1 nuclear exclusion to the cytoplasm. Mechanistically, H2S persulfidated the FOXO1 protein in A7r5 and 293T cells, and the thiol reductant DTT reversed this effect. Furthermore, the C457S mutation of FOXO1 abolished the H2S-induced persulfidation of FOXO1 in the cells and the subsequent inhibitory effects on FOXO1 phosphorylation at Ser256, FOXO1 nuclear exclusion to the cytoplasm and cell proliferation. Conclusion Thus, our findings demonstrated that H2S might inhibit VSMC proliferation by persulfidating FOXO1 at Cys457 and subsequently preventing FOXO1 phosphorylation at Ser256.
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Affiliation(s)
- Xiaoyu Tian
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
- Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Dan Zhou
- Department of Cardiology, Wuhan Children's Hospital, Wuhan, China
| | - Yong Zhang
- Department of Cardiology, Wuhan Children's Hospital, Wuhan, China
| | - Yunjia Song
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Qingyou Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Dingfang Bu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Yan Sun
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Liling Wu
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing 100091, China
| | - Yuan Long
- Department of Cardiology, Wuhan Children's Hospital, Wuhan, China
| | - Chaoshu Tang
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing 100091, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
- Corresponding authors at: Department of Pediatrics, Peking University First Hospital, Xi An Men Str. No.1 West District, Beijing 100034, China.
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
- Corresponding authors at: Department of Pediatrics, Peking University First Hospital, Xi An Men Str. No.1 West District, Beijing 100034, China.
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
- Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
- Corresponding authors at: Department of Pediatrics, Peking University First Hospital, Xi An Men Str. No.1 West District, Beijing 100034, China.
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Cai H, Wang X. Effect of sulfur dioxide on vascular biology. Histol Histopathol 2020; 36:505-514. [PMID: 33319344 DOI: 10.14670/hh-18-290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Gasotransmitters, such as nitric oxide, carbon monoxide and hydrogen sulfide, can be generated endogenously. These gasotransmitters play important roles in vascular biology, including vasorelaxation and inhibition of vascular smooth muscle cell (VSMC) proliferation. In recent years, sulfur dioxide (SO₂) has been considered as a fourth gasotransmitter. SO₂ is present in air pollution. Moreover, SO₂ toxicity, including oxidative stress and DNA damage, has been extensively reported in previous studies. Recent studies have shown that SO₂ can be endogenously generated in various organs and vascular tissues, where it regulates vascular tone, vascular smooth cell proliferation and collagen synthesis. SO₂ can decrease blood pressure in rats, inhibit smooth muscle cell proliferation and collagen accumulation and promote collagen degradation, and improve vascular remodelling. SO₂ can decrease cardiovascular atherosclerotic plaques by enhancing the antioxidant effect and upregulating nitric oxide/nitric oxide synthase and hydrogen sulfide/cystathionine-γ-lyase pathways. SO₂ can also ameliorate vascular calcification via the transforming growth factor - β1/Smad pathway. The effect of SO₂ on vascular regulation has attracted great interest. SO₂ may be a novel mediator in vascular biology.
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Affiliation(s)
- Huijun Cai
- Department of Traditional Chinese Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, PR China
| | - Xinbao Wang
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, PR China.
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Shi X, Gao Y, Song L, Zhao P, Zhang Y, Ding Y, Sun R, Du Y, Gong M, Gao Q, Shi Y, Guo Q, Shi H. Sulfur dioxide derivatives produce antidepressant- and anxiolytic-like effects in mice. Neuropharmacology 2020; 176:108252. [PMID: 32712276 DOI: 10.1016/j.neuropharm.2020.108252] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 07/18/2020] [Accepted: 07/20/2020] [Indexed: 12/22/2022]
Abstract
Sulfur dioxide (SO2) can be endogenously generated from sulfur-containing amino acids in animals and humans. Increasing evidence shows that endogenous SO2 may act as a gaseous molecule to participate in many physiological and pathological processes. However, the role of SO2 and its derivatives in the central nervous system remains poorly understood. The present study explored the protective effects of exogenous SO2 derivatives (Na2SO3:NaHSO3, 3:1 M/M) on cellular injury in vitro by using the cell proliferation assay (MTS), cell counting kit 8 assay (CCK-8), and cyto-flow assay in the corticosterone (CORT)-induced PC12 cell injury model. We also examined the antidepressant and anxiolytic effects of SO2 derivatives on the chronic mild stress (CMS)-induced depression mouse model by using the open field test, novelty suppressed feeding test, forced swimming test, tail suspension test, and sucrose preference test. In the MTS and CCK-8 assays, we found that preexposure of SO2 derivatives significantly blocked CORT-induced decrease of cellular survival without causing any negative effects. Results from the cyto-flow assay indicated that treatment with SO2 derivatives could reverse CORT-induced early and late apoptosis of PC12 cells. Systemic treatment with SO2 derivatives produced markedly antidepressant- and anxiolytic-like activities in mice under normal condition and rapidly reversed CMS-induced depressive- and anxiety-like behaviors. In conclusion, these findings indicate that exogenous SO2 derivatives show protective properties against the detrimental effects of stress and exert antidepressant- and anxiolytic-like actions. The present study suggests that exogenous SO2 derivatives are potential therapeutic agents for the treatment of depression, anxiety, and other stress-related diseases.
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Affiliation(s)
- Xiaorui Shi
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang, 050017, China
| | - Yuan Gao
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang, 050017, China
| | - Li Song
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang, 050017, China
| | - Penghui Zhao
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang, 050017, China
| | - Yipu Zhang
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yuanjian Ding
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China
| | - Ruoxuan Sun
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yuru Du
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China
| | - Miao Gong
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China
| | - Qiang Gao
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yun Shi
- Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang, 050017, China
| | - Qingjun Guo
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang, 050017, China.
| | - Haishui Shi
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang, 050017, China.
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Zhang L, Jin H, Song Y, Chen SY, Wang Y, Sun Y, Tang C, Du J, Huang Y. Endogenous sulfur dioxide is a novel inhibitor of hypoxia-induced mast cell degranulation. J Adv Res 2020; 29:55-65. [PMID: 33842005 PMCID: PMC8020161 DOI: 10.1016/j.jare.2020.08.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 01/25/2023] Open
Abstract
Endogenous SO2/AAT pathway exists in mast cells (MCs). Endogenous SO2 is a novel MC membrane stabilizer under hypoxic circumstance. MC-derived SO2 upregulates cAMP level, thereby suppressing MC degranulation.
Introduction Mast cell (MC) degranulation is an important step in the pathogenesis of inflammatory reactions and allergies; however, the mechanism of stabilizing MC membranes to reduce their degranulation is unclear. Methods SO2 content in MC culture supernatant was measured by HPLC-FD. The protein and mRNA expressions of the key enzymes aspartate aminotransferase 1 (AAT1) and AAT2 and intracellular AAT activity were detected. The cAMP level in MCs was detected by immunofluorescence and ELISA. The release rate of MC degranulation marker β-hexosaminidase was measured. The expression of AAT1 and cAMP, the MC accumulation and degranulation in lung tissues were detected. Objectives To exam whether an endogenous sulfur dioxide (SO2) pathway exists in MCs and if it serves as a novel endogenous MC stabilizer. Results We firstly show the existence of the endogenous SO2/AAT pathway in MCs. Moreover, when AAT1 was knocked down in MCs, MC degranulation was significantly increased, and could be rescued by a SO2 donor. Mechanistically, AAT1 knockdown decreased the cyclic adenosine monophosphate (cAMP) content in MCs, while SO2 prevented this reduction in a dose-independent manner. Pretreatment with the cAMP-synthesizing agonist forskolin or the cAMP degradation inhibitor IBMX significantly blocked the increase in AAT1 knockdown-induced MC degranulation. Furthermore, in hypoxia-stimulated MCs, AAT1 protein expression and SO2 production were markedly down regulated, and MC degranulation was activated, which were blunted by AAT1 overexpression. The cAMP synthesis inhibitor SQ22536 disrupted the suppressive effect of AAT1 overexpression on hypoxia-induced MC degranulation. In a hypoxic environment, mRNA and protein expression of AAT1 was significantly reduced in lung tissues of rats. Supplementation of SO2 elevated the cAMP level and reduced perivascular MC accumulation and degranulation in lung tissues of rats exposed to a hypoxic environment in vivo. Conclusion SO2 serves as an endogenous MC stabilizer via upregulating the cAMP pathway under hypoxic circumstance.
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Affiliation(s)
- Lulu Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yunjia Song
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Selena Ying Chen
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Yi Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yan Sun
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Corresponding author at: Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.
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Song Y, Peng H, Bu D, Ding X, Yang F, Zhu Z, Tian X, Zhang L, Wang X, Tang C, Huang Y, Du J, Jin H. Negative auto-regulation of sulfur dioxide generation in vascular endothelial cells: AAT1 S-sulfenylation. Biochem Biophys Res Commun 2020; 525:S0006-291X(20)30306-5. [PMID: 32087961 DOI: 10.1016/j.bbrc.2020.02.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 02/06/2020] [Indexed: 01/10/2023]
Abstract
Recently, endogenous sulfur dioxide (SO2) has been found to exert an important function in the cardiovascular system. However, the regulatory mechanism for SO2 generation has not been entirely clarified. Hence, we aimed to explore the possible auto-regulation of endogenous SO2 generation and its mechanisms in vascular endothelial cells. We showed that SO2 did not affect the protein expression of aspartate aminotransferase 1 (AAT1), a major SO2 synthesis enzyme, but significantly inhibited AAT activity in primary human umbilical vein endothelial cells (HUVECs) and porcine purified AAT1 protein. An AAT1 enzymatic kinetic study showed that SO2 reduced the Vmax (1.89 ± 0.10 vs 2.55 ± 0.12, μmol/mg/min, P < 0.05) and increased the Km (35.97 ± 9.54 vs 19.33 ± 1.76 μmol/L, P < 0.05) values. Furthermore, SO2 induced S-sulfenylation of AAT1 in primary HUVECs and purified AAT1 protein. LC-MS/MS analysis indicated that SO2 sulfenylated AAT1 at Cys192. Mechanistically, thiol reductant DTT treatment or C192S mutation prevented SO2-induced AAT1 sulfenylation and the subsequent inhibition of AAT activity in purified AAT1 protein and primary HUVECs. Our findings reveal, for the first time, a mechanism of auto-regulation of SO2 generation through sulfenylation of AAT1 at Cys192 to suppress AAT activity in vascular endothelial cells. These findings will greatly deepen the understanding of regulatory mechanisms in the cardiovascular homeostasis.
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Affiliation(s)
- Yunjia Song
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China; Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases, Chinese Academy of Medical Sciences, China
| | - Hanlin Peng
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Dingfang Bu
- Research Center, Peking University First Hospital, Beijing, 100034, China
| | - Xiang Ding
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Fuquan Yang
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhigang Zhu
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Xiaoyu Tian
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Lulu Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Xiuli Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing, 100191, China; Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, 100191, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China; Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, 100191, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China.
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Zhu Z, Zhang L, Chen Q, Li K, Yu X, Tang C, Kong W, Jin H, Du J, Huang Y. Macrophage-derived sulfur dioxide is a novel inflammation regulator. Biochem Biophys Res Commun 2020; 524:916-922. [PMID: 32057367 DOI: 10.1016/j.bbrc.2020.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 02/03/2020] [Indexed: 12/17/2022]
Abstract
Macrophage-mediated inflammation is a key pathophysiological component of cardiovascular diseases, but the underlying mechanisms by which the macrophage regulates inflammation have been unclear. In our study, we, for the first time, showed an endogenous sulfur dioxide (SO2) production in RAW267.4 macrophages by using HPLC and SO2-specific fluorescent probe assays. Moreover, the endogenous SO2 generating enzyme aspartate aminotransferase (AAT) was found to be expressed by the macrophages. Furthermore, we showed that AAT2 knockdown triggered spontaneous macrophage-mediated inflammation, as represented by the increased TNF-α and IL-6 levels and the enhanced macrophage chemotaxis; these effects could be reversed by the treatment with a SO2 donor. Mechanistically, AAT2 knockdown activated the NF-κB signaling pathway in macrophages, while SO2 successfully rescued NF-κB activation. In contrast, forced AAT2 expression reversed AngII-induced NF-κB activation and subsequent macrophage inflammation. Moreover, treatment with a SO2 donor also alleviated macrophage infiltration in AngII-treated mouse hearts. Collectively, our data suggest that macrophage-derived SO2 is an important regulator of macrophage activation and it acts as an endogenous "on-off switch" in the control of macrophage activation. This knowledge might enable a new therapeutic strategy for cardiovascular diseases.
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Affiliation(s)
- Zhigang Zhu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Lulu Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Qinghua Chen
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Xiaoqi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China.
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Sun HJ, Wu ZY, Nie XW, Bian JS. Role of Endothelial Dysfunction in Cardiovascular Diseases: The Link Between Inflammation and Hydrogen Sulfide. Front Pharmacol 2020; 10:1568. [PMID: 32038245 PMCID: PMC6985156 DOI: 10.3389/fphar.2019.01568] [Citation(s) in RCA: 264] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/03/2019] [Indexed: 12/12/2022] Open
Abstract
Endothelial cells are important constituents of blood vessels that play critical roles in cardiovascular homeostasis by regulating blood fluidity and fibrinolysis, vascular tone, angiogenesis, monocyte/leukocyte adhesion, and platelet aggregation. The normal vascular endothelium is taken as a gatekeeper of cardiovascular health, whereas abnormality of vascular endothelium is a major contributor to a plethora of cardiovascular ailments, such as atherosclerosis, aging, hypertension, obesity, and diabetes. Endothelial dysfunction is characterized by imbalanced vasodilation and vasoconstriction, elevated reactive oxygen species (ROS), and proinflammatory factors, as well as deficiency of nitric oxide (NO) bioavailability. The occurrence of endothelial dysfunction disrupts the endothelial barrier permeability that is a part of inflammatory response in the development of cardiovascular diseases. As such, abrogation of endothelial cell activation/inflammation is of clinical relevance. Recently, hydrogen sulfide (H2S), an entry as a gasotransmitter, exerts diverse biological effects through acting on various targeted signaling pathways. Within the cardiovascular system, the formation of H2S is detected in smooth muscle cells, vascular endothelial cells, and cardiomyocytes. Disrupted H2S bioavailability is postulated to be a new indicator for endothelial cell inflammation and its associated endothelial dysfunction. In this review, we will summarize recent advances about the roles of H2S in endothelial cell homeostasis, especially under pathological conditions, and discuss its putative therapeutic applications in endothelial inflammation-associated cardiovascular disorders.
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Affiliation(s)
- Hai-Jian Sun
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Zhi-Yuan Wu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Xiao-Wei Nie
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jin-Song Bian
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,National University of Singapore (Suzhou) Research Institute, Suzhou, China
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Zhang W, Huo F, Yin C. Photocontrolled Single-/Dual-Site Alternative Fluorescence Probes Distinguishing Detection of H2S/SO2 in Vivo. Org Lett 2019; 21:5277-5280. [DOI: 10.1021/acs.orglett.9b01879] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Weijie Zhang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Fangjun Huo
- Research Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, China
| | - Caixia Yin
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
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44
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Li K, Li LL, Zhou Q, Yu KK, Kim JS, Yu XQ. Reaction-based fluorescent probes for SO2 derivatives and their biological applications. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.03.001] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Bai L, Qi Y, Chen S, Wang J, Tang C, Du J, Jin H, Huang Y. Angiotensin II downregulates vascular endothelial cell hydrogen sulfide production by enhancing cystathionine γ-lyase degradation through ROS-activated ubiquitination pathway. Biochem Biophys Res Commun 2019; 514:907-912. [PMID: 31084929 DOI: 10.1016/j.bbrc.2019.05.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 05/03/2019] [Indexed: 02/08/2023]
Abstract
The interactions between vasoactive peptides and gasotransmitters have attracted considerable attention from scientists. However, the impact of angiotensin II (AngII) on the endogenous hydrogen sulfide/cystathionine γ-lyase (H2S/CSE) pathway in vascular endothelial cells remains unclear. In this study, we found, for the first time, that AngII downregulated the endogenous H2S/CSE pathway in a time-dependent manner. Mechanistically, AngII accelerated the degradation of the CSE protein and shortened its half-life in endothelial cells. AngII significantly induced Lys48 (K48)-linked CSE ubiquitination and subsequent CSE degradation but did not affect Lys63 (K63)-linked CSE ubiquitination in vascular endothelial cells. Treatment with the proteasome inhibitor MG132 and mutation of Lys48 to Arg in ubiquitin successfully blunted the inhibitory effects of AngII on the endogenous H2S/CSE pathway in vascular endothelial cells. Furthermore, we found that superoxide anion levels were significantly increased in AngII-treated endothelial cells compared with controls and that the ROS scavenger N-acetyl-l-cysteine (NAC) significantly abolished CSE ubiquitination. Taken together, our data suggested that AngII inhibited endogenous H2S generation through ubiquitination-mediated CSE degradation via the ROS pathway in vascular endothelial cells.
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Affiliation(s)
- Lu Bai
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Yongfen Qi
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, 100191, China
| | - Selena Chen
- University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jiadong Wang
- Institute of Systems Biomedicine, Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Chaoshu Tang
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, 100191, China; Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, 100191, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China; Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, 100191, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China.
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China.
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Wang W, Wang B. SO 2 Donors and Prodrugs, and Their Possible Applications: A Review. Front Chem 2018; 6:559. [PMID: 30505833 PMCID: PMC6250732 DOI: 10.3389/fchem.2018.00559] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/29/2018] [Indexed: 12/16/2022] Open
Abstract
SO2 is widely recognized as an air pollutant and is a known cause of acid rain. At a sufficiently high level, it also causes respiratory diseases. A much lesser known side of SO2 is its endogenous nature and possible physiological roles. There is mounting evidence that SO2 is produced during normal cellular metabolism and may possibly function as a signaling molecule in normal physiology. The latter aspect is still at the stage of being carefully examined as to the validity of classifying SO2 as a gasotransmitter with endogenous signaling roles. One difficulty in studying the biological and pharmacological roles of SO2 is the lack of adequate tools for its controllable and precise delivery. Traditional methods of using SO2 gas or mixed sulfite salts do not meet research need for several reasons. Therefore, there has been increasing attention on the need of developing SO2 donors or prodrugs that can be used as tools for the elucidation of SO2's physiological roles, pharmacological effects, and possible mechanism(s) of action. In this review, we aim to review basic sulfur chemistry in the context of sulfur signaling and various chemical strategies used for designing SO2 donors. We will also discuss potential pharmacological applications of SO2 donors, lay out desirable features for such donors and possibly prodrugs, analyze existing problems, and give our thoughts on research needs.
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Affiliation(s)
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, United States
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