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He P, Ren X, Zhang Y, Tang B, Xiao C. Recent advances in sulfur dioxide releasing nanoplatforms for cancer therapy. Acta Biomater 2024; 174:91-103. [PMID: 38092251 DOI: 10.1016/j.actbio.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/10/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
Sulfur dioxide (SO2), long considered to be a harmful atmospheric pollutant, has recently been posited as the fourth gasotransmitter, as it is produced endogenously in mammals and has important pathophysiological effects. The field of tumor therapy has witnessed a paradigm shift with the emergence of SO2-based gas therapy. This has been possible because SO2 is a potent glutathione consumer that can promote the production of reactive oxygen species, eventually leading to oxidative-stress-induced cancer cell death. Nevertheless, this therapeutic gas cannot be directly administrated in gaseous form. Thus, various nano formulations incorporating SO2 donors or prodrugs capable of storing and releasing SO2 have been developed in an attempt to achieve active/passive intratumoral accumulation and SO2 release in the tumor microenvironment. In this review article, the advances over the past decade in nanoplatforms incorporating sulfur SO2 prodrugs to provide controlled release of SO2 for cancer therapy are summarized. We first describe the synthesis of polypeptide SO2 prodrugs to overcome multiple drug resistance that was pioneered by our group, followed by other macromolecular SO2 prodrug structures that self-assemble into nanoparticles for tumor therapy. Second, we describe nanoplatforms composed of various small-molecule SO2 donors with endogenous or exogenous stimuli responsiveness, including thiol activated, acid-sensitive, and ultraviolet or near-infrared light-responsive SO2 donors, which have been used for tumor inhibition. Combinations of SO2 gas therapy with photodynamic therapy, chemotherapy, photothermal therapy, sonodynamic therapy, and nanocatalytic tumor therapy are also presented. Finally, we discuss the current limitations and challenges and the future outlook for SO2-based gas therapy. STATEMENT OF SIGNIFICANCE: Gas therapy is attracting increasing attention in the scientific community because it is a highly promising strategy against cancer owing to its inherent biosafety and avoidance of drug resistance. Sulfur dioxide (SO2) is recently found to be produced endogenously in mammals with important pathophysiological effects. This review summarizes recent advances in SO2 releasing nanosystems for cancer therapy, including polymeric prodrugs, endogenous or exogenous stimulus-activated SO2 donors delivered by nanoplatform and combination therapy strategies.
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Affiliation(s)
- Pan He
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, PR China.
| | - Xiaoyue Ren
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, PR China
| | - Yu Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Bingtong Tang
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, PR China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
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Jiang S, Chen H, Shen P, Zhou Y, Li Q, Zhang J, Chen Y. Gasotransmitter Research Advances in Respiratory Diseases. Antioxid Redox Signal 2024; 40:168-185. [PMID: 37917094 DOI: 10.1089/ars.2023.0410] [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: 11/03/2023]
Abstract
Significance: Gasotransmitters are small gas molecules that are endogenously generated and have well-defined physiological functions. The most well-defined gasotransmitters currently are nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S), while other potent gasotransmitters include ammonia, methane, cyanide, hydrogen gas, and sulfur dioxide. Gasotransmitters play a role in various respiratory diseases such as asthma, chronic obstructive pulmonary disease, obstructive sleep apnea, lung infection, bronchiectasis, cystic fibrosis, primary ciliary dyskinesia, and COVID-19. Recent Advances: Gasotransmitters can act as biomarkers that facilitate disease diagnosis, indicate disease severity, predict disease exacerbation, and evaluate disease outcomes. They also have cell-protective properties, and many studies have been conducted to explore their pharmacological applications. Innovative drug donors and drug delivery methods have been invented to amplify their therapeutic effects. Critical Issues: In this article, we briefly reviewed the physiological and pathophysiological functions of some gasotransmitters in the respiratory system, the progress in detecting exhaled gasotransmitters, as well as innovative drugs derived from these molecules. Future Directions: The current challenge for gasotransmitter research includes further exploring their physiological and pathological functions, clarifying their complicated interactions, exploring suitable drug donors and delivery devices, and characterizing new members of gasotransmitters. Antioxid. Redox Signal. 40, 168-185.
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Affiliation(s)
- Simin Jiang
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Haijie Chen
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Pu Shen
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Yumou Zhou
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Qiaoyu Li
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Jing Zhang
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Yahong Chen
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
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Xi Y, Ge Y, Hu D, Xia T, Chen J, Zhang C, Cui Y, Xiao H. Caveolin-1 scaffolding domain peptide prevents corpus cavernosum fibrosis and erectile dysfunction in bilateral cavernous nerve injury-induced rats. J Sex Med 2023; 20:1274-1284. [PMID: 37724695 DOI: 10.1093/jsxmed/qdad108] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Corpus cavernosum (CC) fibrosis significantly contributes to post-radical prostatectomy erectile dysfunction (pRP-ED). Caveolin-1 scaffolding domain (CSD)-derived peptide has gained significant concern as a potent antagonist of tissue fibrosis. However, applying CSD peptide on bilateral cavernous nerve injury (BCNI)-induced rats remains uninvestigated. AIM The aim was to explore the therapeutic outcome and underlying mechanism of CSD peptide for preventing ED in BCNI rats according to the hypothesis that CSD peptide may exert beneficial effects on erectile tissue and function following BCNI through limiting collagen synthesis in CC smooth muscle cells (CCSMCs) and CC fibrosis. METHODS After completing a random assignment of male Sprague Dawley rats (10 weeks of age), BCNI rats received either saline or CSD peptide treatment, as opposed to sham-operated rats. The evaluations of erectile function (EF) and succedent collection and histological and molecular biological examinations of penile tissue were accomplished 3 weeks postoperatively. In addition, the fibrotic model of CCSMCs was used to further explore the mechanism of CSD peptide action in vitro. OUTCOMES The assessments of EF, SMC/collagen ratio, α-smooth muscle actin, caveolin-1 (CAV1), and profibrotic indicators expressions were conducted. RESULTS BCNI rats exhibited significant decreases in EF, SMC/collagen ratio, α-SMA, and CAV1 levels, and increases in collagen content together with transforming growth factor (TGF)-β1/Smad2 activity. However, impaired EF, activated CC fibrosis, and Smad2 signaling were attenuated after 3 weeks of CSD peptide treatment in BCNI rats. In vitro, TGF-β1-induced CCSMCs underwent fibrogenetic transformation characterized by lower expression of CAV1, higher collagen composition, and phosphorylation of Smad2; then, the delivery of CSD peptide could significantly block CCSMC fibrosis by inactivating Smad2 signaling. CLINICAL IMPLICATIONS Based on available evidence of CSD peptide in the prevention of ED in BCNI rats, this study can aid in the development and clinical application of CSD peptide targeting pRP-ED. STRENGTHS AND LIMITATIONS This study provides data to suggest that CSD peptide protects against BCNI-induced deleterious alterations in EF and CC tissues. However, the available evidence still does not fully clarify the detailed mechanism of action of CSD peptide. CONCLUSION Administration of CSD peptide significantly retarded collagen synthesis in CCSMCs, limited CC fibrosis, and prevented ED via confrontation of TGF-β1/Smad signaling in BCNI rats.
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Affiliation(s)
- Yuhang Xi
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
| | - Yunlong Ge
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
| | - Daoyuan Hu
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
- Department of Urology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
| | - Tian Xia
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
| | - Jialiang Chen
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
| | - Chi Zhang
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
| | - Yubin Cui
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
| | - Hengjun Xiao
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 020-510000, China
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Peng H, Kong S, Deng X, Deng Q, Qi F, Liu C, Tang R. Development of a Ratiometric Fluorescent Probe with Zero Cross-Talk for the Detection of SO 2 Derivatives in Foods and Live Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14322-14329. [PMID: 37747790 DOI: 10.1021/acs.jafc.3c04056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Sulfur dioxide (SO2) derivatives are extensively utilized as both a preservative for foods and an active gaseous signal molecule in various physiological and pathological processes, but their excessive intake would bring harmful effects on human health; so, the determination of SO2 derivatives is of great importance. Herein, we developed a ratiometric fluorescent probe named 2-(2'-hydroxyphenyl)benzothiazole-3-ethyl-1,1,2-trimethyl-1H-benzo[e]indolium (HBT-EMBI) by introducing a hemicyanine unit of EMBI to an HBT group for the detection of SO2 derivatives via an excited-state intramolecular proton transfer (ESIPT) and intramolecular charge transfer (ICT) effects. The probe displays some advantages, such as a colorimetric change from purple to colorless, a ratiometric fluorescence with zero cross-talk, and a remarkably large emission shift (Δλ = 164 nm) under a single-wavelength excitation. Accordingly, the probe HBT-EMBI has been successfully employed for the colorimetric and ratiometric determination of SO2 derivatives in real food samples and the quantitative visualization of SO2 derivative variations in HepG2 cells.
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Affiliation(s)
- Huan Peng
- College of Material and Chemical Engineering, Hunan City University, Yiyang 413000, People's Republic of China
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
| | - Suna Kong
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
| | - Xia Deng
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
| | - Qirong Deng
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
| | - Fengpei Qi
- College of Material and Chemical Engineering, Hunan City University, Yiyang 413000, People's Republic of China
| | - Changhui Liu
- College of Material and Chemical Engineering, Hunan City University, Yiyang 413000, People's Republic of China
| | - Ruiren Tang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
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Lv Y, Wang Y, Yao J, He J, Lin C, Bai G, Tu C. The role of FGF9-mediated TGF-β1/Smad signaling in enamel hypoplasia induced by exposure to fluoride and SO 2 in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115243. [PMID: 37454483 DOI: 10.1016/j.ecoenv.2023.115243] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
Many geographical areas of the world are polluted by both fluoride and sulfur dioxide (SO2). However, the effects of simultaneous exposure to fluoride and SO2 on teeth are unknown. Fibroblast growth factor-9 (FGF9) and transforming growth factor-β1 (TGF-β1) are key signaling molecules in enamel development. The purpose of the study was to explore the effects of co-exposure to fluoride and sulfur dioxide on enamel and to investigate the role and mechanism of FGF9 and TGF-β1. First, sodium fluoride (NaF) and SO2 derivatives were used to construct rat models and evaluate the enamel development of rats. Then, TGF-β1 (cytokine) treatment, SIS3 (inhibitor) treatment and FGF9 gene knockdown were used to explore the mechanism of enamel damage in vitro. The results showed that enamel column crystals in the exposed group were characterized by enamel hypoplasia, as indicated by alterations such as disarrangement of enamel column crystals, space widening and breakage. Ameloblasts also showed pathological changes such as ribosome loss, mitochondrial swelling, nuclear fragmentation and chromatin aggregation. The protein expression of FGF9 was higher and the protein expression of AMBN, TGF-β1 and p-Smad2/3 protein was lower in the groups treated with fluoride and SO2 individually or in combination compared with the control group. Further studies showed that TGF-β1 significantly upregulated p-Smad2/3 and AMBN protein expression and reduced the inhibitory effects of fluoride and SO2; furthermore, SISI blocked the effect of TGF-β1. In addition, knockdown of FGF9 upregulated TGF-β1 protein expression, further activated Smad2/3 phosphorylation, eliminated the inhibitory effects of fluoride and SO2, and increased the protein expression of AMBN. In brief, the study confirms that co-exposure to fluoride and SO2 can result in enamel hypoplasia in rats and indicates that the underlying mechanism may be closely related to the effect of FGF9 on enamel matrix protein secretion through inhibition of the TGF-β1/Smad signaling pathway.
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Affiliation(s)
- Ying Lv
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Yang Wang
- Infrastructure Construction Department, Guizhou Medical University, Guiyang 550025, China
| | - Jin Yao
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Jiaojiao He
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Changhu Lin
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Guohui Bai
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, China
| | - Chenglong Tu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China.
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Peng H, Zhu M, Kong W, Tang C, Du J, Huang Y, Jin H. L-cystathionine protects against oxidative stress and DNA damage induced by oxidized low-density lipoprotein in THP-1-derived macrophages. Front Pharmacol 2023; 14:1161542. [PMID: 37560474 PMCID: PMC10408194 DOI: 10.3389/fphar.2023.1161542] [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: 02/08/2023] [Accepted: 07/13/2023] [Indexed: 08/11/2023] Open
Abstract
Introduction: Oxidative stress in monocyte-derived macrophages is a significant pathophysiological process in atherosclerosis. L-cystathionine (L-Cth) acts as a scavenger for oxygen free radicals. However, the impact of L-Cth on macrophage oxidative stress during atherogenesis has remained unclear. This study aimed to investigate whether L-Cth affects oxidative stress in THP-1-derived macrophages and its subsequent effects on DNA damage and cell apoptosis. Methods: We established a cellular model of oxLDL-stimulated macrophages. The content of superoxide anion, H2O2, NO, and H2S in the macrophage were in situ detected by the specific fluorescence probe, respectively. The activities of SOD, GSH-Px, and CAT were measured by colorimetrical assay. The protein expressions of SOD1, SOD2, and iNOS were detected using western blotting. The DNA damage and apoptosis in the macrophage was evaluated using an fluorescence kit. Results: The results demonstrated that oxLDL significantly increased the content of superoxide anion and H2O2, the expression of iNOS protein, and NO production in macrophages. Conversely, oxLDL decreased the activity of antioxidants GSH-Px, SOD, and CAT, and downregulated the protein expressions of SOD1 and SOD2 in macrophages. However, treatment with L-Cth reduced the levels of superoxide anion, H2O2, and NO, as well as the protein expression of iNOS induced by oxLDL. Moreover, L-Cth treatment significantly enhanced GSH-Px, SOD, and CAT activity, and upregulated the expressions of SOD1 and SOD2 proteins in macrophages treated with oxLDL. Furthermore, both L-Cth supplementation and activation of endogenous L-Cth production suppressed DNA damage and cell apoptosis in oxLDL-injured macrophages, whereas inhibition of endogenous L-Cth exacerbated the deleterious effects of oxLDL. Conclusion: These findings suggest that L-Cth exerts a pronounced inhibitory effect on the oxidative stress, subsequent DNA damage and cell apoptosis in oxLDL-stimulated THP-1 monocytes. This study deepens our understanding of the pathogenesis of macrophage-related cardiovascular pathology.
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Affiliation(s)
- Hanlin Peng
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Mingzhu Zhu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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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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Lv Y, Wang W, Yao L, He J, Bai G, Lin C, Tu C. Sodium Fluoride and Sulfur Dioxide Derivatives Induce TGF-β1-Mediated NBCe1 Downregulation Causing Acid-Base Disorder of LS8 Cells. Biol Trace Elem Res 2023; 201:828-842. [PMID: 35304687 DOI: 10.1007/s12011-022-03169-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/16/2022] [Indexed: 01/25/2023]
Abstract
The aim of the present work was to assess whether the combination of sodium fluoride (NaF) and sulfur dioxide derivatives (SO2 derivatives) affects the expression of the electrogenic sodium bicarbonate cotransporter NBCe1 (SLC4A4), triggering an acid-base imbalance during enamel development, leading to enamel damage. LS8 cells was taken as the research objects and fluorescent probes, quantitative real-time polymerase chain reaction (qRT-PCR), western blot, and factorial analysis were used to clarify the nature of the fluoro-sulfur interaction and the potential signaling pathway involved in the regulation of NBCe1. The results showed that exposure to fluoride or SO2 derivatives resulted in an acid-base imbalance, and these changes were accompanied by inhibited expression of NBCe1 and TGF-β1; these effects were more significant after fluoride exposure as compared to exposure to SO2 derivatives. Interestingly, in most cases, the toxic effects during combined exposure were significantly reduced compared to the effects observed with fluoride or sulfur dioxide derivatives alone. The results also indicated that activation of TGF-β1 signaling significantly upregulated the expression of NBCe1, and this effect was suppressed after the Smad, ERK, and JNK signals were blocked. Furthermore, fluoride and SO2 derivative-dependent NBCe1 regulation was found to require TGF-β1. In conclusion, this study indicates that the combined effect of fluorine and sulfur on LS8 cells is mainly antagonistic. TGF-β1 may regulate NBCe1 and may participate in the occurrence of dental fluorosis through the classic TGF-β1/Smad pathway and the unconventional ERK and JNK pathways.
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Affiliation(s)
- Ying Lv
- School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guizhou, China
| | - Wentai Wang
- School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guizhou, China
| | - Lili Yao
- School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guizhou, China
| | - Jiaojiao He
- School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guizhou, China
| | - Guohui Bai
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, China
| | - Changhu Lin
- School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guizhou, China
| | - Chenglong Tu
- School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guizhou, China.
- The Toxicity Testing Center of Guizhou Medical University, Guizhou Medical University, Guizhou, China.
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Liu J, Zhang R, Wang D, Lin Y, Bai C, Nie N, Gao S, Zhang Q, Chang H, Ren C. Elucidating the role of circNFIB in myocardial fibrosis alleviation by endogenous sulfur dioxide. BMC Cardiovasc Disord 2022; 22:492. [PMID: 36404310 PMCID: PMC9677687 DOI: 10.1186/s12872-022-02909-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/21/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND To investigate the role of circNFIB in the alleviation of myocardial fibrosis by endogenous sulfur dioxide (SO2). METHODS We stimulated cultured neonatal rat cardiac fibroblasts with transforming growth factor-β1 (TGF-β1) and developed an in vitro myocardial fibrosis model. Lentivirus vectors containing aspartate aminotransferase 1 (AAT1) cDNA were used to overexpress AAT1, and siRNA was used to silence circNFIB. The SO2, collagen, circNFIB, Wnt/β-catenin, and p38 MAPK pathways were examined in each group. RESULTS In the in vitro TGF-β1-induced myocardial fibrosis model, endogenous SO2/AAT1 expression was significantly decreased, and collagen levels in the cell supernatant and type I and III collagen expression, as well as α-SMA expression, were all significantly increased. TGF-β1 also significantly reduced circNFIB expression. AAT1 overexpression significantly reduced myocardial fibrosis while significantly increasing circNFIB expression. Endogenous SO2 alleviated myocardial fibrosis after circNFIB expression was blocked. We discovered that circNFIB plays an important role in the alleviation of myocardial fibrosis by endogenous SO2 by inhibiting the Wnt/β-catenin and p38 MAPK pathways. CONCLUSION Endogenous SO2 promotes circNFIB expression, which inhibits the Wnt/β-catenin and p38 MAPK signaling pathways, consequently alleviating myocardial fibrosis.
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Affiliation(s)
- Jia Liu
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ranran Zhang
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Dahai Wang
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi Lin
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Cui Bai
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Nana Nie
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shan Gao
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qiuye Zhang
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hong Chang
- grid.412521.10000 0004 1769 1119Department of pediatric nephrology and rheumotology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chongmin Ren
- grid.412521.10000 0004 1769 1119Department of orthopedic oncology, The Affiliated Hospital of Qingdao University, Qingdao, China
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Endogenous Hydrogen Sulfide Persulfidates Caspase-3 at Cysteine 163 to Inhibit Doxorubicin-Induced Cardiomyocyte Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6153772. [PMID: 35571249 PMCID: PMC9095366 DOI: 10.1155/2022/6153772] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/31/2022] [Accepted: 04/13/2022] [Indexed: 02/07/2023]
Abstract
Doxorubicin (DOX) is an efficient antitumor anthracycline drug, but its cardiotoxicity adversely affects the prognosis of the patients. In this study, we explored whether endogenous gasotransmitter hydrogen sulfide (H2S) could protect against DOX-induced cardiomyocyte apoptosis and its mechanisms. The results indicated that DOX significantly downregulated endogenous H2S production and endogenous synthetase cystathionine γ-lyase (CSE) expression and obviously stimulated the apoptosis in H9C2 cells. The supplement of H2S donor sodium hydrosulfide (NaHS) or overexpression of CSE inhibited DOX-induced H9C2 cell apoptosis. DOX enhanced the activities of caspase family members in cardiomyocytes, while NaHS attenuated DOX-enhanced caspase-3, caspase-2, and caspase-9 activities by 223.1%, 73.94%, and 52.29%, respectively. Therefore, taking caspase-3 as a main target, we demonstrated that NaHS or CSE overexpression alleviated the cleavage of caspase-3, suppressed caspase-3 activity, and inhibited the cleavage of poly ADP-ribose polymerase (PARP). Mechanistically, we found that H2S persulfidated caspase-3 in H9C2 cells and human recombinant caspase-3 protein, while the thiol-reducing agent dithiothreitol (DTT) abolished H2S-induced persulfidation of caspase-3 and thereby prevented the antiapoptotic effect of H2S on caspase-3 in H9C2 cells. The mutation of caspase-3 C148S and C170S failed to block caspase-3 persulfidation by H2S in H9C2 cells. However, caspase-3 C163S mutation successfully abolished the effect of H2S on caspase-3 persulfidation and the corresponding protection of H9C2 cells. Collectively, these findings indicate that endogenous H2S persulfidates caspase-3 at cysteine 163, inhibiting its activity and cardiomyocyte apoptosis. Sufficient endogenous H2S might be necessary for the protection against myocardial cell apoptosis induced by DOX. The results of the study might open new avenues with respect to the therapy of DOX-stimulated cardiomyopathy.
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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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12
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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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Yang QQ, Tian QQ, Ji N, Duan XH, Zhu XH, Zhang YL, He W. A novel fluorescent probe for the detection of sulfur dioxide derivatives and its application in biological imaging. NEW J CHEM 2022. [DOI: 10.1039/d1nj03184h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new probe CA-SO2 to efficiently and specifically detect SO2 was designed. The probe showed a fast response time (<50 s), low detection limit (LOD = 75 nM), large Stokes shift (129 nm) and was applied to detect SO2 in living cells and zebrafish.
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Affiliation(s)
- Qing-Qing Yang
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
| | - Qin-Qin Tian
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
| | - Nan Ji
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
| | - Xiao-Hong Duan
- State Key Laboratory of Military Stomatology, Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032, China
| | - Xiao-Hong Zhu
- Shaanxi Institute for Food and Drug Control, Xi’an, 710065, China
| | - Yan-Li Zhang
- State Key Laboratory of Military Stomatology, Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032, China
| | - Wei He
- Department of Chemistry, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032, China
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Zhou Z, Zhou H, Zou X, Wang X. RUNX3 is up-regulated in abdominal aortic aneurysm and regulates the function of vascular smooth muscle cells by regulating TGF-β1. J Mol Histol 2021; 53:1-11. [PMID: 34813022 DOI: 10.1007/s10735-021-10035-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 10/23/2021] [Indexed: 02/06/2023]
Abstract
Abdominal aortic aneurysm (AAA) has been associated with the dysfunction of vascular smooth muscle cells (VSMCs) and extracellular matrix (ECM) remodelling. Runt-related transcription factor 3 (RUNX3) has been reported to be up-regulated in aneurysmal aorta samples compared with normal aorta. However, its function in VSMCs and the mechanism of function remains unknown. Therefore, our study aimed to investigate the role of RUNX3 in ECM remodelling and VSMC function, and further explore the underlying mechanism. Our results verified that RUNX3 was increased in aortic samples of AAA compared with healthy controls. Overexpression vectors of RUNX3 (ov-RUNX3) and siRNA of RUNX3 (si-RUNX3) were transfected into Human aortic smooth muscle cells (HAoSMCs). The results indicated that ov-RUNX3 promoted cell proliferation, migration, and MMP-2/3/9 secretion, and suppressed TIMP-1, collagen I/III, SM22, MYH11 and CNN1 expression in HAoSMCs. The silencing of RUNX3 has the opposite effect. Furthermore, we found that RUNX3 targets TGF-β1 and suppressed its transcription. The silencing of TGF-β1 increased cell proliferation, migration and MMP-2/3/9 expression, and inhibited TIMP-1, Collagen I/III, SM22, MYH11 and CNN1 expression. In addition, TGF-β1 reversed the effect of RUNX3 overexpression on HAoSMCs. Hence, our study indicated that RUNX3 promotes cell proliferation, migration, and ECM remodelling through suppressing TGF-β1.
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Affiliation(s)
- Zhongxiao Zhou
- Department of Vascular Surgery, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70 Heping Road, Huancui District, Weihai, 264200, China
| | - Haimeng Zhou
- Department of Vascular Surgery, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70 Heping Road, Huancui District, Weihai, 264200, China.
| | - Xin Zou
- Department of Vascular Surgery, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70 Heping Road, Huancui District, Weihai, 264200, China
| | - Xiaowei Wang
- Department of Vascular Surgery, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70 Heping Road, Huancui District, Weihai, 264200, 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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16
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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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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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Huang Y, Li Z, Zhang L, Tang H, Zhang H, Wang C, Chen SY, Bu D, Zhang Z, Zhu Z, Yuan P, Li K, Yu X, Kong W, Tang C, Jung Y, Ferreira RB, Carroll KS, Du J, Yang J, Jin H. Endogenous SO 2-dependent Smad3 redox modification controls vascular remodeling. Redox Biol 2021; 41:101898. [PMID: 33647858 PMCID: PMC7933484 DOI: 10.1016/j.redox.2021.101898] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 12/14/2022] Open
Abstract
Sulfur dioxide (SO2) has emerged as a physiological relevant signaling molecule that plays a prominent role in regulating vascular functions. However, molecular mechanisms whereby SO2 influences its upper-stream targets have been elusive. Here we show that SO2 may mediate conversion of hydrogen peroxide (H2O2) to a more potent oxidant, peroxymonosulfite, providing a pathway for activation of H2O2 to convert the thiol group of protein cysteine residues to a sulfenic acid group, aka cysteine sulfenylation. By using site-centric chemoproteomics, we quantified >1000 sulfenylation events in vascular smooth muscle cells in response to exogenous SO2. Notably, ~42% of these sulfenylated cysteines are dynamically regulated by SO2, among which is cysteine-64 of Smad3 (Mothers against decapentaplegic homolog 3), a key transcriptional modulator of transforming growth factor β signaling. Sulfenylation of Smad3 at cysteine-64 inhibits its DNA binding activity, while mutation of this site attenuates the protective effects of SO2 on angiotensin II-induced vascular remodeling and hypertension. Taken together, our findings highlight the important role of SO2 in vascular pathophysiology through a redox-dependent mechanism.
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Affiliation(s)
- Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Zongmin Li
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences • Beijing, Beijing Institute of Lifeomics, Beijing, 102206, China; Anhui Medical University, Hefei, 230032, China
| | - Lulu Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Huan Tang
- Synthetic and Functional Biomolecules Center, Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Heng Zhang
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Chu Wang
- Synthetic and Functional Biomolecules Center, Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Selena Ying Chen
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Dingfang Bu
- Laboratory Center, Peking University First Hospital, Beijing, 100034, China
| | - Zaifeng Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Zhigang Zhu
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Piaoliu Yuan
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, 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
| | - Wei Kong
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, 100191, China; Key Laboratory of Cardiovascular Sciences, Ministry of Education, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, 100191, China; Key Laboratory of Cardiovascular Sciences, Ministry of Education, China
| | - Youngeun Jung
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Renan B Ferreira
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Kate S Carroll
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China; Key Laboratory of Cardiovascular Sciences, Ministry of Education, China
| | - Jing Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences • Beijing, Beijing Institute of Lifeomics, Beijing, 102206, China; Anhui Medical University, Hefei, 230032, China.
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China; Key Laboratory of Cardiovascular Sciences, Ministry of Education, China.
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Endothelial Cell-Derived SO 2 Controls Endothelial Cell Inflammation, Smooth Muscle Cell Proliferation, and Collagen Synthesis to Inhibit Hypoxic Pulmonary Vascular Remodelling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5577634. [PMID: 33953829 PMCID: PMC8068783 DOI: 10.1155/2021/5577634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/27/2021] [Accepted: 04/05/2021] [Indexed: 02/08/2023]
Abstract
Hypoxic pulmonary vascular remodelling (PVR) is the major pathological basis of aging-related chronic obstructive pulmonary disease and obstructive sleep apnea syndrome. The pulmonary artery endothelial cell (PAEC) inflammation, and pulmonary artery smooth muscle cell (PASMC) proliferation, hypertrophy and collagen remodelling are the important pathophysiological components of PVR. Endogenous sulfur dioxide (SO2) was found to be a novel gasotransmitter in the cardiovascular system with its unique biological properties. The study was aimed to investigate the role of endothelial cell- (EC-) derived SO2 in the progression of PAEC inflammation, PASMC proliferation, hypertrophy and collagen remodelling in PVR and the possible mechanisms. EC-specific aspartic aminotransferase 1 transgenic (EC-AAT1-Tg) mice were constructed in vivo. Pulmonary hypertension was induced by hypoxia. Right heart catheterization and echocardiography were used to detect mouse hemodynamic changes. Pathologic analysis was performed in the pulmonary arteries. High-performance liquid chromatography was employed to detect the SO2 content. Human PAECs (HPAECs) with lentiviruses containing AAT1 cDNA or shRNA and cocultured human PASMCs (HPASMCs) were applied in vitro. SO2 probe and enzyme-linked immunosorbent assay were used to detect the SO2 content and determine p50 activity, respectively. Hypoxia caused a significant reduction in SO2 content in the mouse lung and HPAECs and increases in right ventricular systolic pressure, pulmonary artery wall thickness, muscularization, and the expression of PAEC ICAM-1 and MCP-1 and of PASMC Ki-67, collagen I, and α-SMA (p < 0.05). However, EC-AAT1-Tg with sufficient SO2 content prevented the above increases induced by hypoxia (p < 0.05). Mechanistically, EC-derived SO2 deficiency promoted HPAEC ICAM-1 and MCP-1 and the cocultured HPASMC Ki-67 and collagen I expression, which was abolished by andrographolide, an inhibitor of p50 (p < 0.05). Meanwhile, EC-derived SO2 deficiency increased the expression of cocultured HPASMC α-SMA (p < 0.05). Taken together, these findings revealed that EC-derived SO2 inhibited p50 activation to control PAEC inflammation in an autocrine manner and PASMC proliferation, hypertrophy, and collagen synthesis in a paracrine manner, thereby inhibiting hypoxic PVR.
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Wang J, Li T, Cai H, Jin L, Li R, Shan L, Cai W, Jiang J. Protective effects of total flavonoids from Qu Zhi Qiao (fruit of Citrus paradisi cv. Changshanhuyou) on OVA-induced allergic airway inflammation and remodeling through MAPKs and Smad2/3 signaling pathway. Biomed Pharmacother 2021; 138:111421. [PMID: 33752061 DOI: 10.1016/j.biopha.2021.111421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 02/06/2021] [Accepted: 02/16/2021] [Indexed: 12/24/2022] Open
Abstract
Allergic asthma is one of the inflammatory diseases, which has become a major public health problem. Qu zhi qiao (QZQ), a dry and immature fruit of Citrus paradisi cv. Changshanhuyou, has various flavonoids with pharmacological properties. However, there is a knowledge gap on the pharmacological properties of QZQ on allergic asthma. Therefore, here, we explored the efficacy and mechanism of total flavonoids from QZQ (TFCH) on allergic asthma. We extracted and purified TFCH and conducted animal experiments using an Ovalbumin (OVA)-induced mice model. Bronchoalveolar lavage fluid and Swiss-Giemsa staining were used to count different inflammatory cells in allergic asthma mice. We conducted histopathology and immunohistochemistry to evaluate the changes in the lungs of allergic asthma mice. Moreover, we used ELISA assays to analyze chemokines and inflammatory cytokines. Furthermore, western blot analyses were conducted to elucidate the mechanism of TFCH on allergic asthma. We established that TFCH has anti-inflammatory effects and inhibits airway remodeling, providing a potential therapeutic strategy for allergic asthma.
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Affiliation(s)
- Jianping Wang
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou 310006, China; Songyang County People's Hospital, Lishui 323400, China
| | - Ting Li
- Department of Plastic and Aesthetic Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Haiying Cai
- Shaoxing people's Hospital, Shaoxing 312000, China
| | - Liangyan Jin
- Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310023, China
| | - Run Li
- Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Letian Shan
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou 310006, China.
| | - Wei Cai
- Department of Chinese Materia Medica, Zhejiang Pharmaceutical College, Ningbo 315100, China
| | - Jianping Jiang
- Zhejiang You-du Biotech Limited Company, Quzhou 324200, China; Department of Pharmacy, School of Medicine, Zhejiang University City College, 310015 China.
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21
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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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Wei X, Fang Z, Sheng J, Wang Y, Lu P. Honokiol-mesoporous Silica Nanoparticles Inhibit Vascular Restenosis via the Suppression of TGF-β Signaling Pathway. Int J Nanomedicine 2020; 15:5239-5252. [PMID: 32801689 PMCID: PMC7399453 DOI: 10.2147/ijn.s250911] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 06/01/2020] [Indexed: 11/23/2022] Open
Abstract
Introduction The main pathological mechanism of restenosis after percutaneous coronary intervention (PCI) is intimal hyperplasia, which is mainly caused by proliferation and migration of vascular smooth muscle cells (VSMCs). Our previous study found that honokiol (HNK), a small-molecule polyphenol, can inhibit neointimal hyperplasia after balloon injury, but its specific mechanism is still unclear. Moreover, poor water solubility as well as low bioavailability of honokiol has limited its practical use. Methods We used mesoporous silica nanoparticles (MSNPs) as a standard substance to encapsulate HNK and then assemble into honokiol-mesoporous silica nanoparticles, and we investigated the effect of these nanoparticles on the process of restenosis after common carotid artery injury in rats. Results We report a promising delivery system that loads HNK into MSNPs and finally assembles it into a nanocomposite particle. These HNK-MSNPs not merely inhibited proliferation and migration of VSMCs by reducing phosphorylation of Smad3, but also showed a higher suppression of intimal thickening than the free-honokiol-treated group in a rat model of balloon injury. Conclusion To sum up, this drug delivery system supplies a potent nano-platform for improving the biological effects of HNK and provides a promising strategy for preventing vascular restenosis.
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Affiliation(s)
- Xiao Wei
- Department of Geriatrics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China
| | - Zhiwei Fang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Jing Sheng
- Department of Geriatrics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China
| | - Yu Wang
- Department of Cardiology, Shidong Hospital of Yangpu District, Shanghai 200438, People's Republic of China
| | - Ping Lu
- Department of Geriatrics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China
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Endothelin-1 Downregulates Sulfur Dioxide/Aspartate Aminotransferase Pathway via Reactive Oxygen Species to Promote the Proliferation and Migration of Vascular Smooth Muscle Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:9367673. [PMID: 32089786 PMCID: PMC7008293 DOI: 10.1155/2020/9367673] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 01/06/2020] [Indexed: 01/08/2023]
Abstract
The regulatory mechanisms for proliferation and migration of vascular smooth muscle cells have not yet been clear. The present study was designed to investigate whether and how endothelin-1 (ET-1) impacted the generation of endogenous sulfur dioxide (SO2) in rat vascular smooth muscle cell (VSMC) proliferation and migration. Primary VSMCs and purified aspartate aminotransferase (AAT) protein were used in this study. We found that in the presence of ET-1, the expression of PCNA and Ki-67 was upregulated and the migration of VSMCs was promoted, while the AAT activity and SO2 levels in VSMCs were reduced without any changes in AAT1 and AAT2 expression. SO2 supplementation successfully prevented the ET-1-facilitated expression of PCNA and Ki-67 and the migration of VSMCs. Interestingly, ET-1 significantly increased reactive oxygen species (ROS) production in association with SO2/AAT pathway downregulation in VSMCs compared with controls, while the ROS scavenger N-acetyl-L-cysteine (NAC) and the antioxidant glutathione (GSH) significantly abolished the ET-1-stimulated downregulation of the SO2/AAT pathway. Moreover, the AAT activity was reduced in purified protein after the treatment for 2 h. However, NAC and GSH blocked the hydrogen peroxide-induced AAT activity reduction. In conclusion, our results suggest that ET-1 results in the downregulation of the endogenous SO2/AAT pathway via ROS generation to enhance the proliferation and migration of VSMCs.
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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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Dai J, Liu R, Zhao J, Zhang A. Sulfur dioxide improves endothelial dysfunction by downregulating the angiotensin II/AT 1R pathway in D-galactose-induced aging rats. J Renin Angiotensin Aldosterone Syst 2018; 19:1470320318778898. [PMID: 29848151 PMCID: PMC5985551 DOI: 10.1177/1470320318778898] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The aim of this study was to investigate the protective effects of sulfur dioxide (SO2) on the endothelial function of the aorta in D-galactose (D-gal)-induced aging rats. Sprague Dawley rats were randomized into a D-gal group, a D-gal + SO2 group and a control group, then injected with D-gal, D-gal + SO2 donor or equivalent volumes of saline, respectively, for 8 consecutive weeks. After 8 weeks, the mean arterial pressure was significantly increased in the D-gal group, but was lowered by SO2. SO2 significantly ameliorated the endothelial dysfunction induced by D-gal treatment. The vasorelaxant effect of SO2 was associated with the elevated nitric oxide levels and upregulated phosphorylation of endothelial nitric oxide synthase. In the D-gal group, the concentration of angiotensin II in the plasma was significantly increased, but was decreased by SO2. Moreover, levels of vascular tissue hydrogen peroxide (H2O2) and malondialdehyde were significantly lower in SO2-treated groups than those in the D-gal group. Western blot analysis showed that the expressions of oxidative stress-related proteins (the angiotensin II type 1 receptor (AT1R), and nicotinamide adenine dinucleotide phosphate oxidase subunits) were increased in the D-gal group, while they were decreased after treatment with SO2. In conclusion, SO2 attenuated endothelial dysfunction in association with the inhibition of oxidative stress injury and the downregulation of the angiotensin II/AT1R pathway in D-gal-induced aging rats.
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Affiliation(s)
- Jing Dai
- 1 Department of Clinical Diagnostics, Hebei Medical University, China
| | - Rui Liu
- 2 Department of Thoracic Surgery, Suining Central Hospital, China
| | - Jinjie Zhao
- 3 Department of Cardiovascular Surgery, Suining Central Hospital, China
| | - Aijie Zhang
- 4 Basic Laboratory, Suining Central Hospital, China
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Yang L, Zhang H, Chen P. Sulfur dioxide attenuates sepsis-induced cardiac dysfunction via inhibition of NLRP3 inflammasome activation in rats. Nitric Oxide 2018; 81:11-20. [PMID: 30273666 DOI: 10.1016/j.niox.2018.09.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 08/16/2018] [Accepted: 09/27/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Sulfur dioxide (SO2) plays an important role in maintaining homeostasis of cardiovascular system. This study was aimed to investigate cardioprotective effects of SO2 on in the rat and the underlying mechanism. METHODS AND RESULTS Sepsis model induced by cecal ligation and puncture (CLP) in rats were used. SO2 donor (NaHSO3/Na2SO3, 1:3 M/M) was administered intraperitoneally at a dose of 85 mg/kg. Primary neonatal rat cardiac ventricular myocytes (NRCMs) were stimulated with LPS (1 mg/mL) in presence or absence of different concentrations of SO2 (10, 50 and 100 μmol/L). SO2 donor could restore the decreased levels of SO2 in plasma and heart of septic rats. SO2 exhibited dramatic improvement in cardiac functions. At 24 h after CLP, SO2 treatments decreased the number of TUNEL-positive cells, Bax/Bcl-2 ratio and activity of caspase-3. Moreover CLP-induced inflammatory response was also relieved by SO2. In NRCMs, SO2 could suppress the LPS-induced myocardial injury, leading to an increase in cell viability, a decrease in LDH and apoptotic rate. Western blot showed that the expression of TLR4, NLRP3, and Caspase-1 were obviously increased in myocardial tissue of CLP group or in NRCMs of LPS group, while SO2 significantly inhibited the CLP-induced or LPS-induced TLR4, NLRP3, and Caspase-1 expression. CONCLUSION SO2 attenuated sepsis-induced cardiac dysfunction likely in association with the inhibiting inflammation via TLR4/NLRP3 signaling pathway.
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Affiliation(s)
- Lin Yang
- Department of Critical Care Medicine, The First People's Hospital of Shangqiu, Shangqiu, 476100, China.
| | - Hui Zhang
- Department of Critical Care Medicine, The First People's Hospital of Shangqiu, Shangqiu, 476100, China
| | - Peili Chen
- Department of Critical Care Medicine, The First People's Hospital of Shangqiu, Shangqiu, 476100, China.
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Zhang D, Wang X, Tian X, Zhang L, Yang G, Tao Y, Liang C, Li K, Yu X, Tang X, Tang C, Zhou J, Kong W, Du J, Huang Y, Jin H. The Increased Endogenous Sulfur Dioxide Acts as a Compensatory Mechanism for the Downregulated Endogenous Hydrogen Sulfide Pathway in the Endothelial Cell Inflammation. Front Immunol 2018; 9:882. [PMID: 29760703 PMCID: PMC5936987 DOI: 10.3389/fimmu.2018.00882] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 04/09/2018] [Indexed: 02/04/2023] Open
Abstract
Endogenous hydrogen sulfide (H2S) and sulfur dioxide (SO2) are regarded as important regulators to control endothelial cell function and protect endothelial cell against various injuries. In our present study, we aimed to investigate the effect of endogenous H2S on the SO2 generation in the endothelial cells and explore its significance in the endothelial inflammation in vitro and in vivo. The human umbilical vein endothelial cell (HUVEC) line (EA.hy926), primary HUVECs, primary rat pulmonary artery endothelial cells (RPAECs), and purified aspartate aminotransferase (AAT) protein from pig heart were used for in vitro experiments. A rat model of monocrotaline (MCT)-induced pulmonary vascular inflammation was used for in vivo experiments. We found that endogenous H2S deficiency caused by cystathionine-γ-lyase (CSE) knockdown increased endogenous SO2 level in endothelial cells and enhanced the enzymatic activity of AAT, a major SO2 synthesis enzyme, without affecting the expressions of AAT1 and AAT2. While H2S donor could reverse the CSE knockdown-induced increase in the endogenous SO2 level and AAT activity. Moreover, H2S donor directly inhibited the activity of purified AAT protein, which was reversed by a thiol reductant DTT. Mechanistically, H2S donor sulfhydrated the purified AAT1/2 protein and rescued the decrease in the sulfhydration of AAT1/2 protein in the CSE knockdown endothelial cells. Furthermore, an AAT inhibitor l-aspartate-β-hydroxamate (HDX), which blocked the upregulation of endogenous SO2/AAT generation induced by CSE knockdown, aggravated CSE knockdown-activated nuclear factor-κB pathway in the endothelial cells and its downstream inflammatory factors including ICAM-1, TNF-α, and IL-6. In in vivo experiment, H2S donor restored the deficiency of endogenous H2S production induced by MCT, and reversed the upregulation of endogenous SO2/AAT pathway via sulfhydrating AAT1 and AAT2. In accordance with the results of the in vitro experiment, HDX exacerbated the pulmonary vascular inflammation induced by the broken endogenous H2S production in MCT-treated rat. In conclusion, for the first time, the present study showed that H2S inhibited endogenous SO2 generation by inactivating AAT via the sulfhydration of AAT1/2; and the increased endogenous SO2 generation might play a compensatory role when H2S/CSE pathway was downregulated, thereby exerting protective effects in endothelial inflammatory responses in vitro and in vivo.
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Affiliation(s)
- Da Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Xiuli Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Xiaoyu Tian
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Lulu Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Guosheng Yang
- Animal Center, Peking University First Hospital, Beijing, China
| | - Yinghong Tao
- Animal Center, Peking University First Hospital, Beijing, China
| | - Chen Liang
- 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
| | - Xinjing Tang
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, 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
| | - Jing Zhou
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing, China.,Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Wei Kong
- 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
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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Liu M, Liu S, Tan W, Tang F, Long J, Li Z, Liang B, Chu C, Yang J. Gaseous signalling molecule SO2 via Hippo‑MST pathway to improve myocardial fibrosis of diabetic rats. Mol Med Rep 2017; 16:8953-8963. [PMID: 28990064 PMCID: PMC5779980 DOI: 10.3892/mmr.2017.7714] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/27/2017] [Indexed: 12/18/2022] Open
Abstract
Recent studies have indicated the existence of an endogenous sulfur dioxide (SO2)‑generating system in the cardiovascular system. The present study aimed to discuss the function and regulatory mechanism of gaseous signal molecule SO2 in inhibiting apoptosis and endoplasmic reticulum stress (ERS) via the Hippo‑MST signaling pathway to improve myocardial fibrosis of diabetic rats. A total of 40 male Sprague‑Dawley rats were randomly divided into four groups (10 rats per group): Normal control group (control group), diabetic rats group [streptozotocin (STZ) group], SO2 intervention group (STZ+SO2 group) and diabetes mellitus rats treated with L‑Aspartic acid β‑hydroxamate (HDX) group (HDX group). Diabetic rats models were established by intra‑peritoneal injection of STZ (40 mg/kg) Following model establishment, intra‑peritoneal injection of Na2SO3/NaHSO3 solution (0.54 mmol/kg) was administered in the STZ+SO2 group, and HDX solution (25 mg/kg/week) was administered in the HDX group. A total of 4 weeks later, echocardiography was performed to evaluate rats' cardiac function; Masson staining, terminal deoxynucleotidyl transferase dUTP nick end labeling staining and transmission electron microscopy examinations were performed to observe myocardial morphological changes. ELISA was employed to determine the SO2 content. Western blot analysis was performed to detect the expression of proteins associated with apoptosis, ERS and the Hippo‑MST signalling pathway. Compared with the control group, the STZ group and HDX group had a disordered arrangement of myocardial cells with apparent myocardial fibrosis, and echocardiography indicated that the cardiac function was lowered, there was an obvious increase of apoptosis in myocardial tissue, the expression levels of apoptosis‑associated protein B‑cell lymphoma associated protein X, caspase‑3 and caspase‑9 were upregulated, and Bcl‑2 expression was downregulated. The expression of ERS and Hippo‑MST pathway‑associated proteins, including CHOP, GRP94, MST1 and MST2, were significantly upregulated. By contrast, these above‑mentioned changes were reversed by SO2 treatment. Compared with STZ group, the HDX group had a further increase of myocardial fibrosis and apoptosis, while there were no statistically significant differences in the expression of Bax/Bcl‑2, caspase‑3, caspase‑9 and ERS and Hippo‑MST pathway‑associated proteins. The results of the present study demonstrated that the gaseous signal molecule SO2 can effectively improve the myocardial fibrosis of diabetic rats, and its mechanism may be associated with reduced apoptosis and ERS by downregulated Hippo‑MST pathway.
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Affiliation(s)
- Maojun Liu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Shengquan Liu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Wenting Tan
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Fen Tang
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Junrong Long
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zining Li
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Biao Liang
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Chun Chu
- Department of Pharmacy, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Jun Yang
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
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Udhayarasu M, Ramakrishnan K, Periasamy S. Assessment of chronic kidney disease using skin texture as a key parameter: for South Indian population. Healthc Technol Lett 2017; 4:223-227. [PMID: 29383256 PMCID: PMC5761315 DOI: 10.1049/htl.2016.0098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/25/2017] [Accepted: 03/01/2017] [Indexed: 11/19/2022] Open
Abstract
Periodical monitoring of renal function, specifically for subjects with history of diabetic or hypertension would prevent them from entering into chronic kidney disease (CKD) condition. The recent increase in numbers may be due to food habits or lack of physical exercise, necessitates a rapid kidney function monitoring system. Presently, it is determined by evaluating glomerular filtration rate (GFR) that is mainly dependent on serum creatinine value and demographic parameters and ethnic value. Attempted here is to develop ethnic parameter based on skin texture for every individual. This value when used in GFR computation, the results are much agreeable with GFR obtained through standard modification of diet in renal disease and CKD epidemiology collaboration equations. Once correlation between CKD and skin texture is established, classification tool using artificial neural network is built to categorise CKD level based on demographic values and parameter obtained through skin texture (without using creatinine). This network when tested gives almost at par results with the network that is trained with demographic and creatinine values. The results of this Letter demonstrate the possibility of non-invasively determining kidney function and hence for making a device that would readily assess the kidney function even at home.
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Affiliation(s)
- Madhanlal Udhayarasu
- Department of Biomedical Engineering, Rajalakshmi Engineering College, Chennai, India
| | - Kalpana Ramakrishnan
- Department of Biomedical Engineering, Rajalakshmi Engineering College, Chennai, India
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Downregulated endogenous sulfur dioxide/aspartate aminotransferase pathway is involved in angiotensin II-stimulated cardiomyocyte autophagy and myocardial hypertrophy in mice. Int J Cardiol 2016; 225:392-401. [DOI: 10.1016/j.ijcard.2016.09.111] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 09/26/2016] [Accepted: 09/29/2016] [Indexed: 11/23/2022]
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