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Xian X, Li L, Ye J, Mo W, Liang D, Huang M, Chang Y, Cui Z. Betaine and I-LG may have a predictive value for ATB: A causal study in a large European population. PLoS One 2024; 19:e0306752. [PMID: 38968285 PMCID: PMC11226055 DOI: 10.1371/journal.pone.0306752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 06/22/2024] [Indexed: 07/07/2024] Open
Abstract
PURPOSE To analyze the causal relationship between 486 human serum metabolites and the active tuberculosis (ATB) in European population. METHODS In this study, the causal relationship between human serum metabolites and the ATB was analyzed by integrating the genome-wide association study (GWAS). The 486 human serum metabolites were used as the exposure variable, three different ATB GWAS databases in the European population were set as outcome variables, and single nucleotide polymorphisms were used as instrumental variables for Mendelian Randomization. The inverse variance weighting was estimated causality, the MR-Egger intercept to estimate horizontal pleiotropy, and the combined effects of metabolites were also considered in the meta-analysis. Furthermore, the web-based MetaboAnalyst 6.0 was engaged for enrichment pathway analysis, while R (version 4.3.2) software and Review Manager 5.3 were employed for statistical analysis. RESULTS A total of 21, 17, and 19 metabolites strongly associated with ATB were found in the three databases after preliminary screening (P < 0.05). The intersecting metabolites across these databases included tryptophan, betaine, 1-linoleoylglycerol (1-monolinolein) (1-LG), 1-eicosatrienoylglycerophosphocholine, and oleoylcarnitine. Among them, betaine (I2 = 24%, P = 0.27) and 1-LG (I2 = 0%, P = 0.62) showed the lowest heterogeneity among the different ATB databases. In addition, the metabolic pathways of phosphatidylethanolamine biosynthesis (P = 0.0068), methionine metabolism (P = 0.0089), betaine metabolism (P = 0.0205) and oxidation of branched-chain fatty acids (P = 0.0309) were also associated with ATB. CONCLUSION Betaine and 1-LG may be biomarkers or auxiliary diagnostic tools for ATB. They may provide new guidance for medical practice in the early diagnosis and surveillance of ATB. In addition, by interfering with phosphatidylethanolamine biosynthesis, methionine metabolism, betaine metabolism, oxidation of branched-chain fatty acids, and other pathways, it is helpful to develop new anti-tuberculosis drugs and explore the virulence or pathogenesis of ATB at a deeper level, providing an effective reference for future studies.
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Affiliation(s)
- Xiaomin Xian
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Li Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jing Ye
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Key Discipline Platform of Tuberculosis Control, Guangxi Centre for Disease Control and Prevention, Nanning, Guangxi, China
| | - Wenxiu Mo
- School of Public Health and Management, Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | - Dabin Liang
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Key Discipline Platform of Tuberculosis Control, Guangxi Centre for Disease Control and Prevention, Nanning, Guangxi, China
| | - Minying Huang
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Key Discipline Platform of Tuberculosis Control, Guangxi Centre for Disease Control and Prevention, Nanning, Guangxi, China
| | - Yue Chang
- School of Medicine and Health Management, Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhezhe Cui
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Key Discipline Platform of Tuberculosis Control, Guangxi Centre for Disease Control and Prevention, Nanning, Guangxi, China
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2
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Ross CL, Lawer A, Sircombe KJ, Pletzer D, Gamble AB, Hook S. Site-Specific Antimicrobial Activity of a Dual-Responsive Ciprofloxacin Prodrug. J Med Chem 2024; 67:9599-9612. [PMID: 38780408 DOI: 10.1021/acs.jmedchem.4c00724] [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: 05/25/2024]
Abstract
Bacterial infections create distinctive microenvironments with a unique mix of metabolites and enzymes compared with healthy tissues that can be used to trigger the activation of antibiotic prodrugs. Here, a single and dual prodrug masking the C3 carboxylate and C7 piperazine of the fluoroquinolone, ciprofloxacin, responsive to nitroreductase (NTR) and/or hydrogen sulfide (H2S), was developed. Masking both functional groups reduced the activity of the prodrug against Staphylococcus aureus and Escherichia coli, increasing its minimum inhibitory concentration (MIC) by ∼512-fold (S. aureus) and ∼8000-fold (E. coli strains), while masking a single group only increased the MIC by ∼128-fold. Bacteria subjected to prolonged prodrug exposure did not show any increase in resistance. Triggering assays demonstrated the conversion of prodrugs to ciprofloxacin, and in a murine infection model, responsive prodrugs showed antibacterial activity comparable to that of ciprofloxacin, suggesting in vivo activation of prodrugs. Thus, the potential for site-specific antibiotic treatment with reduced threat of resistance is demonstrated.
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Affiliation(s)
- Catherine L Ross
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand
- Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand
| | - Aggie Lawer
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand
| | - Kathleen J Sircombe
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand
- Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand
| | - Daniel Pletzer
- Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand
| | - Allan B Gamble
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand
| | - Sarah Hook
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand
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Phan J, Calvo DC, Nair D, Jain S, Montagne T, Dietsche S, Blanchard K, Treadwell S, Adams J, Krajmalnik-Brown R. Precision synbiotics increase gut microbiome diversity and improve gastrointestinal symptoms in a pilot open-label study for autism spectrum disorder. mSystems 2024; 9:e0050324. [PMID: 38661344 PMCID: PMC11097633 DOI: 10.1128/msystems.00503-24] [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: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/26/2024] Open
Abstract
The efficacy of prebiotics and probiotics (synbiotics when combined) to improve symptoms associated with autism spectrum disorder (ASD) has shown considerable inter-study variation, likely due to the complex, heterogeneous nature of the disorder and its associated behavioral, developmental, and gastrointestinal symptoms. Here, we present a precision synbiotic supplementation study in 296 children and adults diagnosed with ASD versus 123 age-matched neurotypical controls. One hundred seventy ASD participants completed the study. Baseline and post-synbiotic assessment of ASD and gastrointestinal (GI) symptoms and deep metagenomic sequencing were performed. Within the ASD cohort, there were significant differences in microbes between subpopulations based on the social responsiveness scale (SRS2) survey (Prevotella spp., Bacteroides, Fusicatenibacter, and others) and gluten and dairy-free diets (Bifidobacterium spp., Lactococcus, Streptococcus spp., and others). At the baseline, the ASD cohort maintained a lower taxonomic alpha diversity and significant differences in taxonomic composition, metabolic pathways, and gene families, with a greater proportion of potential pathogens, including Shigella, Klebsiella, and Clostridium, and lower proportions of beneficial microbes, including Faecalibacterium compared to controls. Following the 3-month synbiotic supplementation, the ASD cohort showed increased taxonomic alpha diversity, shifts in taxonomy and metabolic pathway potential, and improvements in some ASD-related symptoms, including a significant reduction in GI discomfort and overall improved language, comprehension, cognition, thinking, and speech. However, the open-label study design may include some placebo effects. In summary, we found that precision synbiotics modulated the gut microbiome and could be used as supplementation to improve gastrointestinal and ASD-related symptoms. IMPORTANCE Autism spectrum disorder (ASD) is prevalent in 1 out of 36 children in the United States and contributes to health, financial, and psychological burdens. Attempts to identify a gut microbiome signature of ASD have produced varied results. The limited pre-clinical and clinical population sizes have hampered the success of these trials. To understand the microbiome associated with ASD, we employed whole metagenomic shotgun sequencing to classify microbial composition and genetic functional potential. Despite being one of the most extensive ASD post-synbiotic assessment studies, the results highlight the complexity of performing such a case-control supplementation study in this population and the potential for a future therapeutic approach in ASD.
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Affiliation(s)
- Joann Phan
- Sun Genomics, Inc., San Diego, California, USA
| | - Diana C. Calvo
- Department of Civil Engineering, Construction Management, and Environmental Engineering, Northern Arizona University, Flagstaff, Arizona, USA
| | - Divya Nair
- Sun Genomics, Inc., San Diego, California, USA
| | - Suneer Jain
- Sun Genomics, Inc., San Diego, California, USA
| | | | | | | | | | - James Adams
- Biodesign Center for Health Through Microbiomes, Arizona State University, Tempe, Arizona, USA
| | - Rosa Krajmalnik-Brown
- Biodesign Center for Health Through Microbiomes, Arizona State University, Tempe, Arizona, USA
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4
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Smirnova G, Tyulenev A, Sutormina L, Kalashnikova T, Muzyka N, Ushakov V, Samoilova Z, Oktyabrsky O. Regulation of Cysteine Homeostasis and Its Effect on Escherichia coli Sensitivity to Ciprofloxacin in LB Medium. Int J Mol Sci 2024; 25:4424. [PMID: 38674008 PMCID: PMC11050555 DOI: 10.3390/ijms25084424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Cysteine and its derivatives, including H2S, can influence bacterial virulence and sensitivity to antibiotics. In minimal sulfate media, H2S is generated under stress to prevent excess cysteine and, together with incorporation into glutathione and export into the medium, is a mechanism of cysteine homeostasis. Here, we studied the features of cysteine homeostasis in LB medium, where the main source of sulfur is cystine, whose import can create excess cysteine inside cells. We used mutants in the mechanisms of cysteine homeostasis and a set of microbiological and biochemical methods, including the real-time monitoring of sulfide and oxygen, the determination of cysteine and glutathione (GSH), and the expression of the Fur, OxyR, and SOS regulons genes. During normal growth, the parental strain generated H2S when switching respiration to another substrate. The mutations affected the onset time, the intensity and duration of H2S production, cysteine and glutathione levels, bacterial growth and respiration rates, and the induction of defense systems. Exposure to chloramphenicol and high doses of ciprofloxacin increased cysteine content and GSH synthesis. A high inverse relationship between log CFU/mL and bacterial growth rate before ciprofloxacin addition was revealed. The study points to the important role of maintaining cysteine homeostasis during normal growth and antibiotic exposure in LB medium.
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Affiliation(s)
- Galina Smirnova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia; (A.T.); (L.S.); (T.K.); (N.M.); (V.U.); (Z.S.); (O.O.)
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5
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van Mever M, Mamani-Huanca M, Faught E, López-Gonzálvez Á, Hankemeier T, Barbas C, Schaaf MJM, Ramautar R. Application of a capillary electrophoresis-mass spectrometry metabolomics workflow in zebrafish larvae reveals new effects of cortisol. Electrophoresis 2024; 45:380-391. [PMID: 38072651 DOI: 10.1002/elps.202300186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 03/20/2024]
Abstract
In contemporary biomedical research, the zebrafish (Danio rerio) is increasingly considered a model system, as zebrafish embryos and larvae can (potentially) fill the gap between cultured cells and mammalian animal models, because they can be obtained in large numbers, are small and can easily be manipulated genetically. Given that capillary electrophoresis-mass spectrometry (CE-MS) is a useful analytical separation technique for the analysis of polar ionogenic metabolites in biomass-limited samples, the aim of this study was to develop and assess a CE-MS-based analytical workflow for the profiling of (endogenous) metabolites in extracts from individual zebrafish larvae and pools of small numbers of larvae. The developed CE-MS workflow was used to profile metabolites in extracts from pools of 1, 2, 4, 8, 12, 16, 20, and 40 zebrafish larvae. For six selected endogenous metabolites, a linear response (R2 > 0.98) for peak areas was obtained in extracts from these pools. The repeatability was satisfactory, with inter-day relative standard deviation values for peak area of 9.4%-17.7% for biological replicates (n = 3 over 3 days). Furthermore, the method allowed the analysis of over 70 endogenous metabolites in a pool of 12 zebrafish larvae, and 29 endogenous metabolites in an extract from only 1 zebrafish larva. Finally, we applied the optimized CE-MS workflow to identify potential novel targets of the mineralocorticoid receptor in mediating the effects of cortisol.
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Affiliation(s)
- Marlien van Mever
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, The Netherlands
| | - Maricruz Mamani-Huanca
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, Madrid, Spain
| | - Erin Faught
- Institute of Biology Leiden (IBL), Leiden University, Leiden, The Netherlands
| | - Ángeles López-Gonzálvez
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, Madrid, Spain
| | - Thomas Hankemeier
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, The Netherlands
| | - Coral Barbas
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, Madrid, Spain
| | - Marcel J M Schaaf
- Institute of Biology Leiden (IBL), Leiden University, Leiden, The Netherlands
| | - Rawi Ramautar
- Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, The Netherlands
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6
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Ye J, Salti T, Zanditenas E, Trebicz-Geffen M, Benhar M, Ankri S. Impact of Reactive Sulfur Species on Entamoeba histolytica: Modulating Viability, Motility, and Biofilm Degradation Capacity. Antioxidants (Basel) 2024; 13:245. [PMID: 38397843 PMCID: PMC10886169 DOI: 10.3390/antiox13020245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
Reactive sulfur species (RSS) like hydrogen sulfide (H2S) and cysteine persulfide (Cys-SSH) emerged as key signaling molecules with diverse physiological roles in the body, depending on their concentration and the cellular environment. While it is known that H2S and Cys-SSH are produced by both colonocytes and by the gut microbiota through sulfur metabolism, it remains unknown how these RSS affect amebiasis caused by Entamoeba histolytica, a parasitic protozoan that can be present in the human gastrointestinal tract. This study investigates H2S and Cys-SSH's impact on E. histolytica physiology and explores potential therapeutic implications. Exposing trophozoites to the H2S donor, sodium sulfide (Na2S), or to Cys-SSH led to rapid cytotoxicity. A proteomic analysis of Cys-SSH-challenged trophozoites resulted in the identification of >500 S-sulfurated proteins, which are involved in diverse cellular processes. Functional assessments revealed inhibited protein synthesis, altered cytoskeletal dynamics, and reduced motility in trophozoites treated with Cys-SSH. Notably, cysteine proteases (CPs) were significantly inhibited by S-sulfuration, affecting their bacterial biofilm degradation capacity. Immunofluorescence microscopy confirmed alterations in actin dynamics, corroborating the proteomic findings. Thus, our study reveals how RSS perturbs critical cellular functions in E. histolytica, potentially influencing its pathogenicity and interactions within the gut microbiota. Understanding these molecular mechanisms offers novel insights into amebiasis pathogenesis and unveils potential therapeutic avenues targeting RSS-mediated modifications in parasitic infections.
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Affiliation(s)
- Jun Ye
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel (M.T.-G.)
| | - Talal Salti
- Department of Biochemistry, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel
| | - Eva Zanditenas
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel (M.T.-G.)
| | - Meirav Trebicz-Geffen
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel (M.T.-G.)
| | - Moran Benhar
- Department of Biochemistry, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel
| | - Serge Ankri
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel (M.T.-G.)
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7
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Tikhomirova A, Rahman MM, Kidd SP, Ferrero RL, Roujeinikova A. Cysteine and resistance to oxidative stress: implications for virulence and antibiotic resistance. Trends Microbiol 2024; 32:93-104. [PMID: 37479622 DOI: 10.1016/j.tim.2023.06.010] [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: 05/18/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/23/2023]
Abstract
Reactive oxygen species (ROS), including the superoxide radical anion (O2•-), hydrogen peroxide (H2O2), and the hydroxyl radical (•HO), are inherent components of bacterial metabolism in an aerobic environment. Bacteria also encounter exogenous ROS, such as those produced by the host cells during the respiratory burst. As ROS have the capacity to damage bacterial DNA, proteins, and lipids, detoxification of ROS is critical for bacterial survival. It has been recently recognised that low-molecular-weight (LMW) thiols play a central role in this process. Here, we review the emerging role of cysteine in bacterial resistance to ROS with a link to broader elements of bacterial lifestyle closely associated with cysteine-mediated oxidative stress response, including virulence and antibiotic resistance.
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Affiliation(s)
- Alexandra Tikhomirova
- Monash University, Department of Microbiology, Infection and Immunity Program, Monash Biomedicine Discovery Institute, Melbourne, VIC 3800, Australia
| | - Mohammad M Rahman
- University of Kentucky, Department of Microbiology, Immunology and Molecular Genetics, Lexington, KY, USA
| | - Stephen P Kidd
- University of Adelaide, Department of Molecular and Biomedical Sciences, School of Biological Sciences, Adelaide, SA 5005, Australia; University of Adelaide, Research Centre for Infectious Disease (RCID) and Australian Centre for Antimicrobial Resistance Ecology (ACARE), Adelaide, SA 5005, Australia
| | - Richard L Ferrero
- Monash University, Department of Microbiology, Infection and Immunity Program, Monash Biomedicine Discovery Institute, Melbourne, VIC 3800, Australia; Hudson Institute of Medical Research, Centre for Innate Immunity and Infectious Diseases, Melbourne, VIC 3168, Australia; Monash University, Department of Molecular and Translational Science, Infection and Immunity Program, Monash Biomedicine Discovery Institute, Melbourne, VIC 3800, Australia
| | - Anna Roujeinikova
- Monash University, Department of Microbiology, Infection and Immunity Program, Monash Biomedicine Discovery Institute, Melbourne, VIC 3800, Australia; Monash University, Department of Biochemistry and Molecular Biology, Melbourne, VIC 3800, Australia.
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Yang S, Song Y, Dong H, Hu Y, Jiang J, Chang S, Shao J, Yang D. Stimuli-Actuated Turn-On Theranostic Nanoplatforms for Imaging-Guided Antibacterial Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304127. [PMID: 37649207 DOI: 10.1002/smll.202304127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/07/2023] [Indexed: 09/01/2023]
Abstract
Antibacterial theranostic nanoplatforms, which integrate diagnostic and therapeutic properties, exhibit gigantic application prospects in precision medicine. However, traditional theranostic nanoplatforms usually present an always-on signal output, which leads to poor specificity or selectivity in the treatment of bacterial infections. To address this challenge, stimuli-actuated turn-on nanoplatforms are developed for simultaneous activation of diagnostic signals (e.g., fluorescent, photoacoustic, magnetic signals) and initiation of antibacterial treatment. Specifically, by combining the infection microenvironment-responsive activation of visual signals and antibacterial activity, these theranostic nanoplatforms exert both higher accurate diagnosis rates and more effective treatment effects. In this review, the imaging and treatment strategies that are commonly used in the clinic are first briefly introduced. Next, the recent progress of stimuli-actuated turn-on theranostic nanoplatforms for treating bacterial infectious diseases is summarized in detail. Finally, current bottlenecks and future opportunities of antibacterial theranostic nanoplatforms are also outlined and discussed.
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Affiliation(s)
- Siyuan Yang
- Department of Cardiac Surgery, Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, P. R. China
| | - Yingnan Song
- Department of Cardiac Surgery, Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, P. R. China
| | - Heng Dong
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yanling Hu
- College of life and health, Nanjing Polytechnic Institute, Nanjing, 210048, China
| | - Jingai Jiang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Siyuan Chang
- College of life and health, Nanjing Polytechnic Institute, Nanjing, 210048, China
| | - Jinjun Shao
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Dongliang Yang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China
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Andrés CMC, Pérez de la Lastra JM, Andrés Juan C, Plou FJ, Pérez-Lebeña E. Chemistry of Hydrogen Sulfide-Pathological and Physiological Functions in Mammalian Cells. Cells 2023; 12:2684. [PMID: 38067112 PMCID: PMC10705518 DOI: 10.3390/cells12232684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/02/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Hydrogen sulfide (H2S) was recognized as a gaseous signaling molecule, similar to nitric oxide (-NO) and carbon monoxide (CO). The aim of this review is to provide an overview of the formation of hydrogen sulfide (H2S) in the human body. H2S is synthesized by enzymatic processes involving cysteine and several enzymes, including cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE), cysteine aminotransferase (CAT), 3-mercaptopyruvate sulfurtransferase (3MST) and D-amino acid oxidase (DAO). The physiological and pathological effects of hydrogen sulfide (H2S) on various systems in the human body have led to extensive research efforts to develop appropriate methods to deliver H2S under conditions that mimic physiological settings and respond to various stimuli. These functions span a wide spectrum, ranging from effects on the endocrine system and cellular lifespan to protection of liver and kidney function. The exact physiological and hazardous thresholds of hydrogen sulfide (H2S) in the human body are currently not well understood and need to be researched in depth. This article provides an overview of the physiological significance of H2S in the human body. It highlights the various sources of H2S production in different situations and examines existing techniques for detecting this gas.
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Affiliation(s)
| | - José Manuel Pérez de la Lastra
- Institute of Natural Products and Agrobiology, CSIC-Spanish Research Council, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Spain
| | - Celia Andrés Juan
- Cinquima Institute and Department of Organic Chemistry, Faculty of Sciences, Valladolid University, Paseo de Belén, 7, 47011 Valladolid, Spain;
| | - Francisco J. Plou
- Institute of Catalysis and Petrochemistry, CSIC-Spanish Research Council, 28049 Madrid, Spain;
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10
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Ahn YJ, Ahn BK, Kang SW, Lee GJ. Nanozyme based colorimetric detection of biogenic gaseous H 2S using Ag@Au core/shell nanoplates with peroxidase-like activity. Mikrochim Acta 2023; 190:405. [PMID: 37731070 DOI: 10.1007/s00604-023-05979-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 08/31/2023] [Indexed: 09/22/2023]
Abstract
A highly sensitive and facile colorimetric assay is introduced for detecting biogenic gaseous H2S using peroxidase (POD)-like catalytic activity of silver core/gold shell nanoplates (Ag@Au NPls). H2S can react with Ag@Au NPls to form Ag2S or Au2S on their surface, which can reduce POD-like activity of Ag@Au NPls and consequently decrease the absorbance at 650 nm due to oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). For in situ and multiple detection of H2S, we utilized a microplate cover with 24 polydimethylsiloxane inner wells where Ag@Au NPls reacted with H2S gas followed by treatment with TMB/H2O2. As a result, the change in absorbance at 650 nm showed a linear relationship with the H2S concentration in the range 0.33 to 2.96 μM (0.36 absorbance/μM H2S in PBS, R2 = 0.994) with a limit of detection of 263 nM and a relative standard deviation of 4.4%. Finally, this assay could detect H2S released from Eikenella corrodens, used as a model bacterium, in a short time (20 min) or at a low number of bacteria (1 × 104 colony forming units/mL). Therefore, this assay is expected to be applied for the study of H2S signaling in bacterial physiology, as well as measure H2S production released from other oral bacteria that cause halitosis and oral diseases, leading to the subsequent diagnosis.
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Affiliation(s)
- Yong Jin Ahn
- Department of Medical Engineering, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
- Department of Biomedical Engineering, College of Medicine, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Byung-Ki Ahn
- Department of Biomedical Engineering, College of Medicine, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Sung-Woong Kang
- Department of Medical Engineering, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Gi-Ja Lee
- Department of Medical Engineering, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
- Department of Biomedical Engineering, College of Medicine, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea.
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11
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Munteanu C, Turnea MA, Rotariu M. Hydrogen Sulfide: An Emerging Regulator of Oxidative Stress and Cellular Homeostasis-A Comprehensive One-Year Review. Antioxidants (Basel) 2023; 12:1737. [PMID: 37760041 PMCID: PMC10526107 DOI: 10.3390/antiox12091737] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 08/27/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Hydrogen sulfide (H2S), traditionally recognized as a toxic gas, has emerged as a critical regulator in many biological processes, including oxidative stress and cellular homeostasis. This review presents an exhaustive overview of the current understanding of H2S and its multifaceted role in mammalian cellular functioning and oxidative stress management. We delve into the biological sources and function of H2S, mechanisms underlying oxidative stress and cellular homeostasis, and the intricate relationships between these processes. We explore evidence from recent experimental and clinical studies, unraveling the intricate biochemical and molecular mechanisms dictating H2S's roles in modulating oxidative stress responses and maintaining cellular homeostasis. The clinical implications and therapeutic potential of H2S in conditions characterized by oxidative stress dysregulation and disrupted homeostasis are discussed, highlighting the emerging significance of H2S in health and disease. Finally, this review underscores current challenges, controversies, and future directions in the field, emphasizing the need for further research to harness H2S's potential as a therapeutic agent for diseases associated with oxidative stress and homeostatic imbalance. Through this review, we aim to emphasize H2S's pivotal role in cellular function, encouraging further exploration into this burgeoning area of research.
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Affiliation(s)
- Constantin Munteanu
- Teaching Emergency Hospital “Bagdasar-Arseni” (TEHBA), 041915 Bucharest, Romania
- Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700454 Iași, Romania;
| | - Marius Alexandru Turnea
- Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700454 Iași, Romania;
| | - Mariana Rotariu
- Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700454 Iași, Romania;
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12
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Yang D, Ding M, Song Y, Hu Y, Xiu W, Yuwen L, Xie Y, Song Y, Shao J, Song X, Dong H. Nanotherapeutics with immunoregulatory functions for the treatment of bacterial infection. Biomater Res 2023; 27:73. [PMID: 37481650 PMCID: PMC10363325 DOI: 10.1186/s40824-023-00405-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 06/05/2023] [Indexed: 07/24/2023] Open
Abstract
The advent of drug-resistant pathogens results in the occurrence of stubborn bacterial infections that cannot be treated with traditional antibiotics. Antibacterial immunotherapy by reviving or activating the body's immune system to eliminate pathogenic bacteria has confirmed promising therapeutic strategies in controlling bacterial infections. Subsequent studies found that antimicrobial immunotherapy has its own benefits and limitations, such as avoiding recurrence of infection and autoimmunity-induced side effects. Current studies indicate that the various antibacterial therapeutic strategies inducing immune regulation can achieve superior therapeutic efficacy compared with monotherapy alone. Therefore, summarizing the recent advances in nanomedicine with immunomodulatory functions for combating bacterial infections is necessary. Herein, we briefly introduce the crisis caused by drug-resistant bacteria and the opportunity for antibacterial immunotherapy. Then, immune-involved multimodal antibacterial therapy for the treatment of infectious diseases was systematically summarized. Finally, the prospects and challenges of immune-involved combinational therapy are discussed.
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Affiliation(s)
- Dongliang Yang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Meng Ding
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yanni Song
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China.
| | - Yanling Hu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Weijun Xiu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Lihui Yuwen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Yannan Xie
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
| | - Yingnan Song
- Department of Physiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550025, China.
| | - Jinjun Shao
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Xuejiao Song
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Heng Dong
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
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13
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Blachier F. Amino Acid-Derived Bacterial Metabolites in the Colorectal Luminal Fluid: Effects on Microbial Communication, Metabolism, Physiology, and Growth. Microorganisms 2023; 11:1317. [PMID: 37317289 DOI: 10.3390/microorganisms11051317] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 06/16/2023] Open
Abstract
Undigested dietary and endogenous proteins, as well as unabsorbed amino acids, can move from the terminal part of the ileum into the large intestine, where they meet a dense microbial population. Exfoliated cells and mucus released from the large intestine epithelium also supply nitrogenous material to this microbial population. The bacteria in the large intestine luminal fluid release amino acids from the available proteins, and amino acids are then used for bacterial protein synthesis, energy production, and in other various catabolic pathways. The resulting metabolic intermediaries and end products can then accumulate in the colorectal fluid, and their concentrations appear to depend on different parameters, including microbiota composition and metabolic activity, substrate availability, and the capacity of absorptive colonocytes to absorb these metabolites. The aim of the present review is to present how amino acid-derived bacterial metabolites can affect microbial communication between both commensal and pathogenic microorganisms, as well as their metabolism, physiology, and growth.
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Affiliation(s)
- François Blachier
- Université Paris-Saclay, AgroParisTech, INRAe, UMR PNCA, 91120 Palaiseau, France
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14
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Zakharova OV, Belova VV, Baranchikov PA, Kostyakova AA, Muratov DS, Grigoriev GV, Chebotaryova SP, Kuznetsov DV, Gusev AA. The Conditions Matter: The Toxicity of Titanium Trisulfide Nanoribbons to Bacteria E. coli Changes Dramatically Depending on the Chemical Environment and the Storage Time. Int J Mol Sci 2023; 24:ijms24098299. [PMID: 37176006 PMCID: PMC10179056 DOI: 10.3390/ijms24098299] [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: 04/09/2023] [Revised: 04/24/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
In this work, we present an analysis of the antibacterial activity of TiS3 nanostructures in water and 0.9% NaCl solution suspensions. TiS3 nanoribbons 1-10 µm long, 100-300 nm wide, and less than 100 nm thick were produced by the direct reaction of pure titanium powder with elemental sulphur in a quartz tube sealed under vacuum. For the toxicity test of a bioluminescent strain of E. coli we used concentrations from 1 to 0.0001 g L-1 and also studied fresh suspensions and suspensions left for 24 h. The strongest toxic effect was observed in freshly prepared water solutions where the luminescence of bacteria decreased by more than 75%. When saline solution was substituted for water or when the solutions were stored for 24 h it resulted in a considerable decrease in the TiS3 antibacterial effect. The toxicity of TiS3 in water exceeded the toxicity of the reference TiO2 nanoparticles, though when saline solution was used instead of water the opposite results were observed. In addition, we did not find a relationship between the antibacterial activity of water suspensions of nanoribbons and the stability of their colloidal systems, which indicates an insignificant contribution to the toxicity of aggregation processes. In 0.9% NaCl solution suspensions, toxicity increased in proportion to the increase in the zeta potential. We suppose that the noted specificity of toxicity is associated with the emission of hydrogen sulphide molecules from the surface of nanoribbons, which, depending on the concentration, can either decrease or increase oxidative stress, which is considered the key mechanism of nanomaterial cytotoxicity. However, the exact underlying mechanisms need further investigation. Thus, we have shown an important role of the dispersion medium and the period of storage in the antibacterial activity of TiS3 nanoribbons. Our results could be used in nanotoxicological studies of other two-dimensional nanomaterials, and for the development of novel antibacterial substances and other biomedical applications of this two-dimensional material.
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Affiliation(s)
- Olga V Zakharova
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
- Engineering Center, Plekhanov Russian University of Economics, 117997 Moscow, Russia
| | - Valeria V Belova
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Peter A Baranchikov
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Anna A Kostyakova
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Dmitry S Muratov
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
- Scientific School "Chemistry and Technology of Polymer Materials", Plekhanov Russian University of Economics, Stremyanny Lane 36, 117997 Moscow, Russia
| | - Gregory V Grigoriev
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Svetlana P Chebotaryova
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Denis V Kuznetsov
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
| | - Alexander A Gusev
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
- Engineering Center, Plekhanov Russian University of Economics, 117997 Moscow, Russia
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15
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Duizer C, de Zoete MR. The Role of Microbiota-Derived Metabolites in Colorectal Cancer. Int J Mol Sci 2023; 24:8024. [PMID: 37175726 PMCID: PMC10178193 DOI: 10.3390/ijms24098024] [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: 03/19/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The impact of bacterial members of the microbiota on the development of colorectal cancer (CRC) has become clear in recent years. However, exactly how bacteria contribute to the development of cancer is often still up for debate. The impact of bacteria-derived metabolites, which can influence the development of CRC either in a promoting or inhibiting manner, is undeniable. Here, we discuss the effects of the most well-studied bacteria-derived metabolites associated with CRC, including secondary bile acids, short-chain fatty acids, trimethylamine-N-oxide and indoles. We show that the effects of individual metabolites on CRC development are often nuanced and dose- and location-dependent. In the coming years, the array of metabolites involved in CRC development will undoubtedly increase further, which will emphasize the need to focus on causation and mechanisms and the clearly defined roles of bacterial species within the microbiota.
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Affiliation(s)
| | - Marcel R. de Zoete
- Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
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16
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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: 12] [Impact Index Per Article: 12.0] [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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17
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Jia TT, Zhang Y, Hou JT, Niu H, Wang S. H 2S-based fluorescent imaging for pathophysiological processes. Front Chem 2023; 11:1126309. [PMID: 36778034 PMCID: PMC9911449 DOI: 10.3389/fchem.2023.1126309] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 01/16/2023] [Indexed: 01/28/2023] Open
Abstract
Hydrogen sulfide (H2S), as an important endogenous signaling molecule, plays a vital role in many physiological processes. The abnormal behaviors of hydrogen sulfide in organisms may lead to various pathophysiological processes. Monitoring the changes in hydrogen sulfide is helpful for pre-warning and treating these pathophysiological processes. Fluorescence imaging techniques can be used to observe changes in the concentration of analytes in organisms in real-time. Therefore, employing fluorescent probes imaging to investigate the behaviors of hydrogen sulfide in pathophysiological processes is vital. This paper reviews the design strategy and sensing mechanisms of hydrogen sulfide-based fluorescent probes, focusing on imaging applications in various pathophysiological processes, including neurodegenerative diseases, inflammation, apoptosis, oxidative stress, organ injury, and diabetes. This review not only demonstrates the specific value of hydrogen sulfide fluorescent probes in preclinical studies but also illuminates the potential application in clinical diagnostics.
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Affiliation(s)
- Tong-Tong Jia
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, China
| | - Yuanyuan Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Ji-Ting Hou
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Huawei Niu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China,*Correspondence: Huawei Niu, ; Shan Wang,
| | - Shan Wang
- Key Laboratory of Intelligent Treatment and Life Support for Critical Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China,*Correspondence: Huawei Niu, ; Shan Wang,
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18
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Liu H, Sun J, Cheng X, Duan L, Guo S, Zhang Z, Wan J, Wang C, Zhi X, Yuan L, Wang H. Hydrogen sulfide inhibits human T-cell leukemia virus type-1 (HTLV-1) protein expression via regulation of ATG4B. J Med Virol 2023; 95:e28176. [PMID: 36163615 DOI: 10.1002/jmv.28176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 02/06/2023]
Abstract
Hydrogen sulfide (H2 S) is a redox gasotransmitter. It has been shown that H2 S has a key role in host antiviral defense by inhibiting interleukin production and S-sulfhydrating Keap1 lead to Nrf2/ARE pathway activation. However, it is yet unclear whether H2 S can play an antiviral role by regulating autophagy. In this study, we found that exogenous H2 S decreased the expression of human T-cell leukemia virus type-1 (HTLV-1) protein and HTLV-1 induced autophagosomes accumulation. Transmission electron microscope assays indicated that autophagosomes accumulation decreased after H2 S administration. HTLV-1-transformed T-cell lines had a high level of CSE (H2 S endogenous enzyme) which could be induced in Hela by HTLV-1 infection. Immunoblot demonstrated that overexpression of CSE inhibited HTLV-1 protein expression and autophagy. And we got the opposite after CSE knockdown. Meanwhile, H2 S could not restrain the autophagy when ATG4B had a mutant at its site of 89. In a word, these results suggested that H2 S modulated HTLV-1 protein expression via ATG4B. Therefore, our findings suggested a new mechanism by which H2 S defended against virus infection.
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Affiliation(s)
- Huandi Liu
- Henan Key Laboratory of Immunology and Targeted Drugs, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Jiaxiang Sun
- Henan Key Laboratory of Immunology and Targeted Drugs, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Xuhong Cheng
- Department of Laboratory Medicine, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Liangwei Duan
- Henan Key Laboratory of Immunology and Targeted Drugs, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Shuaifeng Guo
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Zhongxin Zhang
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Jia Wan
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Chunduo Wang
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Xiaoying Zhi
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Linghui Yuan
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
| | - Hui Wang
- Henan Key Laboratory of Immunology and Targeted Drugs, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical, University, Xinxiang, China
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19
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Functional and Safety Characterization of Weissella paramesenteroides Strains Isolated from Dairy Products through Whole-Genome Sequencing and Comparative Genomics. DAIRY 2022. [DOI: 10.3390/dairy3040055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Strains belonging to the Weissella genus are frequently recovered from spontaneously fermented foods. Their functional, microbial-modulating, and probiotic traits enhance not only the sensorial properties but also the nutritional value, beneficial effects, and safety of fermented products. Sporadic cases of opportunistic pathogenicity and antibiotic resistance have deprived safety status from all Weissella species, which thus remain understudied. Our study increased the number of available high-quality and taxonomically accurate W. paramesenteroides genomes by 25% (9 genomes reported, leading to a total of 36 genomes). We conducted a phylogenetic and comparative genomic analysis of the most dominant Weissella species (W. cibaria, W. paramesenteroides, W. viridescens, W. soli, W. koreensis, W. hellenica and W. thailadensis). The phylogenetic tree corroborated species assignment but also revealed phylogenetic diversity within the Weissella species, which is likely related to the adaptation of Weissella in different niches. Using robust alignment criteria, we showed the overall absence of resistance and virulence genes in Weissella spp., except for one W. cibaria isolate carrying blaTEM-181. Enrichment analysis showed the association of Weissella species several CAZymes, which are essential for biotechnological applications. Additionally, the combination of CAZyme metabolites with probiotics can potentially lead to beneficial effects for hosts, such as the inhibition of inflammatory processes and the reduction of cholesterol levels. Bacteriocins and mobile genetic elements MGEs (Inc11 plasmid and ISS1N insertion sequence) were less abundant, however W. thailadensis and W. viridescens showed significant association with specific bacteriocin-encoding genes. Lastly, an analysis of phenotypic traits underlined the need to carefully evaluate W. cibaria strains before use as food additives and suggested the possibility of employing W. paramesenteroides and W. hellenica in the fermentation process of vegetable products. More studies providing high-resolution characterization of Weissella strains from various sources are necessary to elucidate the safety of Weissella spp. and exploit their beneficial characteristics.
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20
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Genetic Determinants of Hydrogen Sulfide Biosynthesis in Fusobacterium nucleatum Are Required for Bacterial Fitness, Antibiotic Sensitivity, and Virulence. mBio 2022; 13:e0193622. [PMID: 36073813 PMCID: PMC9600241 DOI: 10.1128/mbio.01936-22] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The Gram-negative anaerobe Fusobacterium nucleatum is a major producer of hydrogen sulfide (H2S), a volatile sulfur compound that causes halitosis. Here, we dissected the genetic determinants of H2S production and its role in bacterial fitness and virulence in this important member of the oral microbiome. F. nucleatum possesses four enzymes, CysK1, CysK2, Hly, and MegL, that presumably metabolize l-cysteine to H2S, and CysK1 was previously shown to account for most H2S production in vitro, based on correlations of enzymatic activities with gene expression at mid-log phase. Our molecular studies showed that cysK1 and megL were highly expressed at the late exponential growth phase, concomitant with high-level H2S production, while the expression levels of the other genes remained substantially lower during all growth phases. Although the genetic deletion of cysK1 without supplementation with a CysK1-catalyzed product, lanthionine, caused cell death, the conditional ΔcysK1 mutant and a mutant lacking hly were highly proficient in H2S production. In contrast, a mutant devoid of megL showed drastically reduced H2S production, and a cysK2 mutant showed only minor deficiencies. Intriguingly, the exposure of these mutants to various antibiotics revealed that only the megL mutant displayed altered susceptibility compared to the parental strain: partial sensitivity to nalidixic acid and resistance to kanamycin. Most significantly, the megL mutant was attenuated in virulence in a mouse model of preterm birth, with considerable defects in the spread to amniotic fluid and the colonization of the placenta and fetus. Evidently, the l-methionine γ-lyase MegL is a major H2S-producing enzyme in fusobacterial cells that significantly contributes to fusobacterial virulence and antibiotic susceptibility.
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21
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Chinemerem Nwobodo D, Ugwu MC, Oliseloke Anie C, Al-Ouqaili MTS, Chinedu Ikem J, Victor Chigozie U, Saki M. Antibiotic resistance: The challenges and some emerging strategies for tackling a global menace. J Clin Lab Anal 2022; 36:e24655. [PMID: 35949048 PMCID: PMC9459344 DOI: 10.1002/jcla.24655] [Citation(s) in RCA: 94] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/22/2022] [Accepted: 08/01/2022] [Indexed: 11/22/2022] Open
Abstract
Background Antibiotic resistance is currently the most serious global threat to the effective treatment of bacterial infections. Antibiotic resistance has been established to adversely affect both clinical and therapeutic outcomes, with consequences ranging from treatment failures and the need for expensive and safer alternative drugs to the cost of higher rates of morbidity and mortality, longer hospitalization, and high‐healthcare costs. The search for new antibiotics and other antimicrobials continues to be a pressing need in humanity's battle against bacterial infections. Antibiotic resistance appears inevitable, and there is a continuous lack of interest in investing in new antibiotic research by pharmaceutical industries. This review summarized some new strategies for tackling antibiotic resistance in bacteria. Methods To provide an overview of the recent research, we look at some new strategies for preventing resistance and/or reviving bacteria's susceptibility to already existing antibiotics. Results Substantial pieces of evidence suggest that antimicrobials interact with host immunity, leading to potent indirect effects that improve antibacterial activities and may result in more swift and complete bactericidal effects. A new class of antibiotics referred to as immuno‐antibiotics and the targeting of some biochemical resistance pathway components including inhibition of SOS response and hydrogen sulfide as biochemical underlying networks of bacteria can be considered as new emerging strategies to combat antibiotic resistance in bacteria. Conclusion This review highlighted and discussed immuno‐antibiotics and inhibition of SOS response and hydrogen sulfide as biochemical underlying networks of bacteria as new weapons against antibiotic resistance in bacteria.
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Affiliation(s)
- David Chinemerem Nwobodo
- Department of Microbiology, Renaissance University, Enugu, Nigeria.,Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Malachy Chigozie Ugwu
- Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Clement Oliseloke Anie
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Delta State University Abraka, Abraka, Nigeria
| | | | - Joseph Chinedu Ikem
- Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria.,Department of Pharmaceutical Microbiology and Biotechnology, Madonna University, Elele, Nigeria
| | - Uchenna Victor Chigozie
- Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Morteza Saki
- Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Infectious Ophthalmologic Research Center, Imam Khomeini Hospital Clinical Research Development Unit, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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22
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Bandyopadhyay P, Pramanick I, Biswas R, PS S, Sreedharan S, Singh S, Rajmani RS, Laxman S, Dutta S, Singh A. S-Adenosylmethionine-responsive cystathionine β-synthase modulates sulfur metabolism and redox balance in Mycobacterium tuberculosis. SCIENCE ADVANCES 2022; 8:eabo0097. [PMID: 35749503 PMCID: PMC9232105 DOI: 10.1126/sciadv.abo0097] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/09/2022] [Indexed: 05/10/2023]
Abstract
Methionine and cysteine metabolisms are important for the survival and pathogenesis of Mycobacterium tuberculosis (Mtb). The transsulfuration pathway converts methionine to cysteine and represents an important link between antioxidant and methylation metabolism in diverse organisms. Using a combination of biochemistry and cryo-electron microscopy, we characterized the first enzyme of the transsulfuration pathway, cystathionine β-synthase (MtbCbs) in Mtb. We demonstrated that MtbCbs is a heme-less, pyridoxal-5'-phosphate-containing enzyme, allosterically activated by S-adenosylmethionine (SAM). The atomic model of MtbCbs in its native and SAM-bound conformations revealed a unique mode of SAM-dependent allosteric activation. Further, SAM stabilized MtbCbs by sterically occluding proteasomal degradation, which was crucial for supporting methionine and redox metabolism in Mtb. Genetic deficiency of MtbCbs reduced Mtb survival upon homocysteine overload in vitro, inside macrophages, and in mice coinfected with HIV. Thus, the MtbCbs-SAM axis constitutes an important mechanism of coordinating sulfur metabolism in Mtb.
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Affiliation(s)
- Parijat Bandyopadhyay
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, Karnataka 560012, India
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Ishika Pramanick
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Rupam Biswas
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Sabarinath PS
- Institute for Stem Cell Science and Regenerative Medicine, Bangalore, Karnataka 560065, India
| | - Sreesa Sreedharan
- Institute for Stem Cell Science and Regenerative Medicine, Bangalore, Karnataka 560065, India
| | - Shalini Singh
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, Karnataka 560012, India
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Raju S. Rajmani
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Sunil Laxman
- Institute for Stem Cell Science and Regenerative Medicine, Bangalore, Karnataka 560065, India
| | - Somnath Dutta
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Amit Singh
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, Karnataka 560012, India
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, Karnataka 560012, India
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23
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Iciek M, Bilska-Wilkosz A, Kozdrowicki M, Górny M. Reactive Sulfur Compounds in the Fight against COVID-19. Antioxidants (Basel) 2022; 11:antiox11061053. [PMID: 35739949 PMCID: PMC9220020 DOI: 10.3390/antiox11061053] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 02/04/2023] Open
Abstract
The SARS-CoV-2 coronavirus pandemic outbreak in 2019 resulted in the need to search for an effective and safe strategy for treating infected patients, relieving symptoms, and preventing severe disease. SARS-CoV-2 is an RNA virus that can cause acute respiratory failure and thrombosis, as well as impair circulatory system function. Permanent damage to the heart muscle or other cardiovascular disorders may occur during or after the infection. The severe course of the disease is associated with the release of large amounts of pro-inflammatory cytokines. Due to their documented anti-inflammatory, antioxidant, and antiviral effects, reactive sulfur compounds, including hydrogen sulfide (H2S), lipoic acid (LA), N-acetylcysteine (NAC), glutathione (GSH), and some other lesser-known sulfur compounds, have attracted the interest of scientists for the treatment and prevention of the adverse effects of diseases caused by SARS-CoV-2. This article reviews current knowledge about various endogenous or exogenous reactive sulfur compounds and discusses the possibility, or in some cases the results, of their use in the treatment or prophylaxis of COVID-19.
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24
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Cirino G, Szabo C, Papapetropoulos A. Physiological roles of hydrogen sulfide in mammalian cells, tissues and organs. Physiol Rev 2022; 103:31-276. [DOI: 10.1152/physrev.00028.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
H2S belongs to the class of molecules known as gasotransmitters, which also includes nitric oxide (NO) and carbon monoxide (CO). Three enzymes are recognized as endogenous sources of H2S in various cells and tissues: cystathionine g-lyase (CSE), cystathionine β-synthase (CBS) and 3-mercaptopyruvate sulfurtransferase (3-MST). The current article reviews the regulation of these enzymes as well as the pathways of their enzymatic and non-enzymatic degradation and elimination. The multiple interactions of H2S with other labile endogenous molecules (e.g. NO) and reactive oxygen species are also outlined. The various biological targets and signaling pathways are discussed, with special reference to H2S and oxidative posttranscriptional modification of proteins, the effect of H2S on channels and intracellular second messenger pathways, the regulation of gene transcription and translation and the regulation of cellular bioenergetics and metabolism. The pharmacological and molecular tools currently available to study H2S physiology are also reviewed, including their utility and limitations. In subsequent sections, the role of H2S in the regulation of various physiological and cellular functions is reviewed. The physiological role of H2S in various cell types and organ systems are overviewed. Finally, the role of H2S in the regulation of various organ functions is discussed as well as the characteristic bell-shaped biphasic effects of H2S. In addition, key pathophysiological aspects, debated areas, and future research and translational areas are identified A wide array of significant roles of H2S in the physiological regulation of all organ functions emerges from this review.
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Affiliation(s)
- Giuseppe Cirino
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Csaba Szabo
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Switzerland
| | - Andreas Papapetropoulos
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece & Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Greece
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25
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The Retrospective on Atypical Brucella Species Leads to Novel Definitions. Microorganisms 2022; 10:microorganisms10040813. [PMID: 35456863 PMCID: PMC9025488 DOI: 10.3390/microorganisms10040813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 02/01/2023] Open
Abstract
The genus Brucella currently comprises twelve species of facultative intracellular bacteria with variable zoonotic potential. Six of them have been considered as classical, causing brucellosis in terrestrial mammalian hosts, with two species originated from marine mammals. In the past fifteen years, field research as well as improved pathogen detection and typing have allowed the identification of four new species, namely Brucella microti, Brucella inopinata, Brucella papionis, Brucella vulpis, and of numerous strains, isolated from a wide range of hosts, including for the first time cold-blooded animals. While their genome sequences are still highly similar to those of classical strains, some of them are characterized by atypical phenotypes such as higher growth rate, increased resistance to acid stress, motility, and lethality in the murine infection model. In our review, we provide an overview of state-of-the-art knowledge about these novel Brucella sp., with emphasis on their phylogenetic positions in the genus, their metabolic characteristics, acid stress resistance mechanisms, and their behavior in well-established in cellulo and in vivo infection models. Comparison of phylogenetic classification and phenotypical properties between classical and novel Brucella species and strains finally lead us to propose a more adapted terminology, distinguishing between core and non-core, and typical versus atypical brucellae, respectively.
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26
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Buret AG, Allain T, Motta JP, Wallace JL. Effects of Hydrogen Sulfide on the Microbiome: From Toxicity to Therapy. Antioxid Redox Signal 2022; 36:211-219. [PMID: 33691464 PMCID: PMC8861923 DOI: 10.1089/ars.2021.0004] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance: Hydrogen sulfide (H2S), an important regulator of physiology and health, helps resolve inflammation and promotes tissue repair in the gastrointestinal tract. Recent Advances: Gut microbiota live as a multispecies biofilm in close interaction with the upper mucus layer lining the epithelium. The relative abundance, spatial organization, and function of these microorganisms affect a broad range of health outcomes. This article provides a state-of-the-art review of our understanding of the cross talk between H2S, the gut microbiota, and health. H2S can have toxic or therapeutic effects, depending on its concentration and source. When produced at excessive concentrations by local microbiota, H2S may cause mucus disruption and inflammation and contribute to development of cancer. In contrast, low levels of endogenous or exogenous H2S directly stabilize mucus layers, prevent fragmentation and adherence of the microbiota biofilm to the epithelium, inhibit the release of invasive pathobionts, and help resolve inflammation and tissue injury. Although scarce, research findings suggest that dietary H2S obtained from plants or ingestion of the H2S precursor, L-cysteine, may also modulate the abundance and function of microbiota. Critical Issues: A critical issue is the lack of understanding of the metagenomic, transcriptomic, and proteomic alterations that characterize the interactions between H2S and gut microbiota to shape health outcomes. Future Directions: The ambivalent roles of H2S in the gut offer a fertile ground for research on such critical issues. The findings will improve our understanding of how H2S modulates the microbiota to affect body function and will help identify novel therapeutic strategies. Antioxid. Redox Signal. 36, 211-219.
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Affiliation(s)
- Andre G Buret
- Host-Parasite Interactions Program, Inflammation Research Network, Biological Sciences, University of Calgary, Calgary, Canada.,Antibe Therapeutics, Inc., Toronto, Canada
| | - Thibault Allain
- Host-Parasite Interactions Program, Inflammation Research Network, Biological Sciences, University of Calgary, Calgary, Canada
| | - Jean-Paul Motta
- Institute of Digestive Health Research, IRSD, INSERM U1220, Toulouse, France
| | - John L Wallace
- Host-Parasite Interactions Program, Inflammation Research Network, Biological Sciences, University of Calgary, Calgary, Canada.,Antibe Therapeutics, Inc., Toronto, Canada
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27
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Bastos RMC, Rangel ÉB. Gut microbiota-derived metabolites are novel targets for improving insulin resistance. World J Diabetes 2022; 13:65-69. [PMID: 35070060 PMCID: PMC8771265 DOI: 10.4239/wjd.v13.i1.65] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/01/2021] [Accepted: 12/31/2021] [Indexed: 02/06/2023] Open
Abstract
The gut microbiota plays a key role in metabolic diseases. Gut-microbiota-derived metabolites are found in different dietary sources, including: Carbohydrate (acetate, propionate, butyrate, also known as short-chain fatty acids, as well as succinate); protein (hydrogen sulfide, indole, and phenylacetic acid); and lipids (resveratrol-, ferulic acid-, linoleic acid-, catechin- and berry-derived metabolites). Insulin resistance, which is a global pandemic metabolic disease that progresses to type 2 diabetes mellitus, can be directly targeted by these metabolites. Gut-microbiota-derived metabolites have broad effects locally and in distinct organs, in particular skeletal muscle, adipose tissue, and liver. These metabolites can modulate glucose metabolism, including the increase in glucose uptake and lipid oxidation in skeletal muscle, and decrease in lipogenesis and gluconeogenesis associated with lipid oxidation in the liver through activation of phosphatidylinositol 3-kinase - serine/threonine-protein kinase B and AMP-activated protein kinase. In adipose tissue, gut-microbiota-derived metabolites stimulate adipogenesis and thermogenesis, inhibit lipolysis, and attenuate inflammation. Importantly, an increase in energy expenditure and fat oxidation occurs in the whole body. Therefore, the therapeutic potential of current pharmacological and non-pharmacological approaches used to treat diabetes mellitus can be tested to target specific metabolites derived from intestinal bacteria, which may ultimately ameliorate the hyperglycemic burden.
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Affiliation(s)
- Rosana MC Bastos
- Hospital Israelita Albert Einstein, São Paulo 05652-001, SP, Brazil
| | - Érika B Rangel
- Hospital Israelita Albert Einstein, São Paulo 05652-001, SP, Brazil
- Nephrology Division, Federal University of São Paulo, São Paulo 04023-900, SP, Brazil
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28
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Kramer P. Mitochondria-Microbiota Interaction in Neurodegeneration. Front Aging Neurosci 2022; 13:776936. [PMID: 35002678 PMCID: PMC8733591 DOI: 10.3389/fnagi.2021.776936] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/30/2021] [Indexed: 11/13/2022] Open
Abstract
Alzheimer’s and Parkinson’s are the two best-known neurodegenerative diseases. Each is associated with the excessive aggregation in the brain and elsewhere of its own characteristic amyloid proteins. Yet the two afflictions have much in common and often the same amyloids play a role in both. These amyloids need not be toxic and can help regulate bile secretion, synaptic plasticity, and immune defense. Moreover, when they do form toxic aggregates, amyloids typically harm not just patients but their pathogens too. A major port of entry for pathogens is the gut. Keeping the gut’s microbe community (microbiota) healthy and under control requires that our cells’ main energy producers (mitochondria) support the gut-blood barrier and immune system. As we age, these mitochondria eventually succumb to the corrosive byproducts they themselves release, our defenses break down, pathogens or their toxins break through, and the side effects of inflammation and amyloid aggregation become problematic. Although it gets most of the attention, local amyloid aggregation in the brain merely points to a bigger problem: the systemic breakdown of the entire human superorganism, exemplified by an interaction turning bad between mitochondria and microbiota.
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Affiliation(s)
- Peter Kramer
- Department of General Psychology, University of Padua, Padua, Italy
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29
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Ansari M, Prem PN, Kurian GA. Hydrogen sulfide postconditioning rendered cardioprotection against myocardial ischemia-reperfusion injury is compromised in rats with diabetic cardiomyopathy. Microvasc Res 2022; 141:104322. [DOI: 10.1016/j.mvr.2022.104322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/07/2022] [Accepted: 01/09/2022] [Indexed: 02/08/2023]
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30
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Ntagia E, Chatzigiannidou I, Carvajal-Arroyo JM, Arends JBA, Rabaey K. Continuous H 2/CO 2 fermentation for acetic acid production under transient and continuous sulfide inhibition. CHEMOSPHERE 2021; 285:131536. [PMID: 34273695 DOI: 10.1016/j.chemosphere.2021.131536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
Waste gas fermentation powered by renewable H2 is reaching kiloton scale. The presence of sulfide, inherent to many waste gases, can cause inhibition, requiring additional gas treatment. In this work, acetogenesis and methanogenesis inhibition by sulfide were studied in a 10-L mixed-culture fermenter, supplied with CO2 and connected with a water electrolysis unit for electricity-powered H2 supply. Three cycles of inhibition (1.3 mM total dissolved sulfide (TDS)) and recovery were applied, then the fermenter was operated at 0.5 mM TDS for 35 days. During operation at 0.5 mM TDS the acetate production rate reached 7.1 ± 1.5 mmol C L-1 d-1. Furthermore, 43.7 ± 15.6% of the electrons, provided as H2, were distributed to acetate and 7.7 ± 4.1% to butyrate, the second most abundant fermentation product. Selectivity of sulfide as inhibitor was demonstrated by a 7 days lag-phase of methanogenesis recovery, compared to 48 h for acetogenesis and by the less than 1% electrons distribution to CH4, under 0.5 mM TDS. The microbial community was dominated by Eubacterium, Proteiniphilum and an unclassified member of the Eggerthellaceae family. The taxonomic diversity of the community decreased and conversely the phenotypic diversity increased, during operation. This work illustrated the scale-up potential of waste gas fermentations, by elucidating the effect of sulfide as a common gas impurity, and by demonstrating continuous, potentially renewable supply of electrons.
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Affiliation(s)
- Eleftheria Ntagia
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000, Gent, Belgium; CAPTURE, www.capture-resources.be, Belgium
| | - Ioanna Chatzigiannidou
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000, Gent, Belgium
| | - Jose M Carvajal-Arroyo
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000, Gent, Belgium
| | - Jan B A Arends
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000, Gent, Belgium; CAPTURE, www.capture-resources.be, Belgium
| | - Korneel Rabaey
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000, Gent, Belgium; CAPTURE, www.capture-resources.be, Belgium.
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31
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Pal VK, Agrawal R, Rakshit S, Shekar P, Murthy DTN, Vyakarnam A, Singh A. Hydrogen sulfide blocks HIV rebound by maintaining mitochondrial bioenergetics and redox homeostasis. eLife 2021; 10:68487. [PMID: 34792020 PMCID: PMC8660018 DOI: 10.7554/elife.68487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 11/17/2021] [Indexed: 01/12/2023] Open
Abstract
A fundamental challenge in human immunodeficiency virus (HIV) eradication is to understand how the virus establishes latency, maintains stable cellular reservoirs, and promotes rebound upon interruption of antiretroviral therapy (ART). Here, we discovered an unexpected role of the ubiquitous gasotransmitter hydrogen sulfide (H2S) in HIV latency and reactivation. We show that reactivation of HIV is associated with downregulation of the key H2S producing enzyme cystathionine-γ-lyase (CTH) and reduction in endogenous H2S. Genetic silencing of CTH disrupts redox homeostasis, impairs mitochondrial function, and remodels the transcriptome of latent cells to trigger HIV reactivation. Chemical complementation of CTH activity using a slow-releasing H2S donor, GYY4137, suppressed HIV reactivation and diminished virus replication. Mechanistically, GYY4137 blocked HIV reactivation by inducing the Keap1-Nrf2 pathway, inhibiting NF-κB, and recruiting the epigenetic silencer, YY1, to the HIV promoter. In latently infected CD4+ T cells from ART-suppressed human subjects, GYY4137 in combination with ART prevented viral rebound and improved mitochondrial bioenergetics. Moreover, prolonged exposure to GYY4137 exhibited no adverse influence on proviral content or CD4+ T cell subsets, indicating that diminished viral rebound is due to a loss of transcription rather than a selective loss of infected cells. In summary, this work provides mechanistic insight into H2S-mediated suppression of viral rebound and suggests exploration of H2S donors to maintain HIV in a latent form.
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Affiliation(s)
- Virender Kumar Pal
- Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Ragini Agrawal
- Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | | | - Pooja Shekar
- BMCRI, Bangalore Medical College and Research Institute, Bangalore, India
| | | | | | - Amit Singh
- Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
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32
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Exoproteome Analysis of Antagonistic Interactions between the Probiotic Bacteria Limosilactobacillus reuteri LR1 and Lacticaseibacillus rhamnosus F and Multidrug Resistant Strain of Klebsiella pneumonia. Int J Mol Sci 2021; 22:ijms222010999. [PMID: 34681658 PMCID: PMC8537075 DOI: 10.3390/ijms222010999] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 12/21/2022] Open
Abstract
The expansion of multiple drug resistant (MDR) strains of Klebsiella pneumoniae presents an immense threat for public health. Annually, this microorganism causes thousands of lethal nosocomial infections worldwide. Currently, it has been shown that certain strains of lactic acid bacteria (LAB) can efficiently inhibit growth of K. pneumoniae and the formation of its biofilms; however, the active principle of such action remains unknown. In the current article, the growth inhibition of MDR K. pneumoniae by two LAB—Limosilactobacillus reuteri LR1 and Lacticaseibacillus rhamnosus F—is demonstrated, and the nature of this inhibition studied at the level of exoproteome. This article shows that the exoproteomes of studied LAB contains both classically and non-classically secreted proteins. While for L. reuteri LR1 the substantial portion of classically secreted proteins was presented by cell-wall-degrading enzymes, for L. rhamnosus F only one out of four classically secreted proteins was presented by cell-wall hydrolase. Non-classically secreted proteins of both LAB were primarily metabolic enzymes, for some of which a possible moonlighting functioning was proposed. These results contribute to knowledge regarding antagonistic interaction between LAB and pathogenic and opportunistic microorganisms and set new perspectives for the use of LAB to control the spread of these microorganisms.
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33
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Pozzi G, Masselli E, Gobbi G, Mirandola P, Taborda-Barata L, Ampollini L, Carbognani P, Micheloni C, Corazza F, Galli D, Carubbi C, Vitale M. Hydrogen Sulfide Inhibits TMPRSS2 in Human Airway Epithelial Cells: Implications for SARS-CoV-2 Infection. Biomedicines 2021; 9:1273. [PMID: 34572459 PMCID: PMC8469712 DOI: 10.3390/biomedicines9091273] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/14/2021] [Accepted: 09/18/2021] [Indexed: 12/23/2022] Open
Abstract
The COVID-19 pandemic has now affected around 190 million people worldwide, accounting for more than 4 million confirmed deaths. Besides ongoing global vaccination, finding protective and therapeutic strategies is an urgent clinical need. SARS-CoV-2 mostly infects the host organism via the respiratory system, requiring angiotensin-converting enzyme 2 (ACE2) and transmembrane protease serine 2 (TMPRSS2) to enter target cells. Therefore, these surface proteins are considered potential druggable targets. Hydrogen sulfide (H2S) is a gasotransmitter produced by several cell types and is also part of natural compounds, such as sulfurous waters that are often inhaled as low-intensity therapy and prevention in different respiratory conditions. H2S is a potent biological mediator, with anti-oxidant, anti-inflammatory, and, as more recently shown, also anti-viral activities. Considering that respiratory epithelial cells can be directly exposed to H2S by inhalation, here we tested the in vitro effects of H2S-donors on TMPRSS2 and ACE2 expression in human upper and lower airway epithelial cells. We showed that H2S significantly reduces the expression of TMPRSS2 without modifying ACE2 expression both in respiratory cell lines and primary human upper and lower airway epithelial cells. Results suggest that inhalational exposure of respiratory epithelial cells to natural H2S sources may hinder SARS-CoV-2 entry into airway epithelial cells and, consequently, potentially prevent the virus from spreading into the lower respiratory tract and the lung.
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Affiliation(s)
- Giulia Pozzi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Elena Masselli
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Giuliana Gobbi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Prisco Mirandola
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Luis Taborda-Barata
- CICS-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal;
| | - Luca Ampollini
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Paolo Carbognani
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Cristina Micheloni
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Francesco Corazza
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Daniela Galli
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Cecilia Carubbi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
| | - Marco Vitale
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (G.P.); (E.M.); (G.G.); (P.M.); (L.A.); (P.C.); (C.M.); (F.C.); (D.G.); (M.V.)
- Italian Foundation for Research in Balneotherapy (FoRST), 00198 Rome, Italy
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34
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Dai J, Teng X, Jin S, Wu Y. The Antiviral Roles of Hydrogen Sulfide by Blocking the Interaction between SARS-CoV-2 and Its Potential Cell Surface Receptors. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7866992. [PMID: 34497683 PMCID: PMC8421161 DOI: 10.1155/2021/7866992] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 08/18/2021] [Indexed: 02/06/2023]
Abstract
The ongoing coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is posing a great threat to the global economy and public health security. Together with the acknowledged angiotensin-converting enzyme 2, glucose-regulated protein 78, transferrin receptor, AXL, kidney injury molecule-1, and neuropilin 1 are also identified as potential receptors to mediate SARS-CoV-2 infection. Therefore, how to inhibit or delay the binding of SARS-CoV-2 with the abovementioned receptors is a key step for the prevention and treatment of COVID-19. As the third gasotransmitter, hydrogen sulfide (H2S) plays an important role in many physiological and pathophysiological processes. Recently, survivors were reported to have significantly higher H2S levels in COVID-19 patients, and mortality was significantly greater among patients with decreased H2S levels. Considering that the beneficial role of H2S against COVID-19 and COVID-19-induced comorbidities and multiorgan damage has been well-examined and reported in some excellent reviews, this review will discuss the recent findings on the potential receptors of SARS-CoV-2 and how H2S modulates the above receptors, in turn blocking SARS-CoV-2 entry into host cells.
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Affiliation(s)
- Jing Dai
- Department of Clinical Diagnostics, Hebei Medical University, Hebei 050017, China
| | - Xu Teng
- Department of Physiology, Hebei Medical University, Hebei 050017, China
| | - Sheng Jin
- Department of Physiology, Hebei Medical University, Hebei 050017, China
| | - Yuming Wu
- Department of Physiology, Hebei Medical University, Hebei 050017, China
- Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Hebei 050017, China
- Key Laboratory of Vascular Medicine of Hebei Province, Hebei 050017, China
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35
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Kieft K, Breister AM, Huss P, Linz AM, Zanetakos E, Zhou Z, Rahlff J, Esser SP, Probst AJ, Raman S, Roux S, Anantharaman K. Virus-associated organosulfur metabolism in human and environmental systems. Cell Rep 2021; 36:109471. [PMID: 34348151 DOI: 10.1016/j.celrep.2021.109471] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 01/07/2021] [Accepted: 07/09/2021] [Indexed: 01/02/2023] Open
Abstract
Viruses influence the fate of nutrients and human health by killing microorganisms and altering metabolic processes. Organosulfur metabolism and biologically derived hydrogen sulfide play dynamic roles in manifestation of diseases, infrastructure degradation, and essential biological processes. Although microbial organosulfur metabolism is well studied, the role of viruses in organosulfur metabolism is unknown. Here, we report the discovery of 39 gene families involved in organosulfur metabolism encoded by 3,749 viruses from diverse ecosystems, including human microbiomes. The viruses infect organisms from all three domains of life. Six gene families encode for enzymes that degrade organosulfur compounds into sulfide, whereas others manipulate organosulfur compounds and may influence sulfide production. We show that viral metabolic genes encode key enzymatic domains, are translated into protein, and are maintained after recombination, and sulfide provides a fitness advantage to viruses. Our results reveal viruses as drivers of organosulfur metabolism with important implications for human and environmental health.
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Affiliation(s)
- Kristopher Kieft
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - Adam M Breister
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - Phil Huss
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA; Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA
| | - Alexandra M Linz
- Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Elizabeth Zanetakos
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - Zhichao Zhou
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - Janina Rahlff
- Department of Chemistry, Environmental Microbiology and Biotechnology, University of Duisburg-Essen, Essen, Germany
| | - Sarah P Esser
- Department of Chemistry, Environmental Microbiology and Biotechnology, University of Duisburg-Essen, Essen, Germany
| | - Alexander J Probst
- Department of Chemistry, Environmental Microbiology and Biotechnology, University of Duisburg-Essen, Essen, Germany
| | - Srivatsan Raman
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA; Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA
| | - Simon Roux
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
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36
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Mishra R, Yadav V, Guha M, Singh A. Heterogeneous Host-Pathogen Encounters Coordinate Antibiotic Resilience in Mycobacterium tuberculosis. Trends Microbiol 2021; 29:606-620. [PMID: 33309526 PMCID: PMC7611257 DOI: 10.1016/j.tim.2020.10.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 12/11/2022]
Abstract
Successful treatment of tuberculosis (TB) depends on the eradication of its causative agent Mycobacterium tuberculosis (Mtb) in the host. However, the emergence of phenotypically drug-resistant Mtb in the host environment tempers the ability of antibiotics to cure disease. Host immunity produces diverse microenvironmental niches that are exploited by Mtb to mobilize adaptation programs. Such differential interactions amplify pre-existing heterogeneity in the host-pathogen milieu to influence disease pathology and therapy outcome. Therefore, comprehending the intricacies of phenotypic heterogeneity can be an empirical step forward in potentiating drug action. With this goal, we review the interconnectedness of the lesional, cellular, and bacterial heterogeneity underlying phenotypic drug resistance. Based on this information, we anticipate the development of new therapeutic strategies targeting host-pathogen heterogeneity to cure TB.
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Affiliation(s)
- Richa Mishra
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru-560012, India; Centre for Infectious Disease and Research (CIDR), Indian Institute of Science, Bengaluru-560012, India
| | - Vikas Yadav
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru-560012, India; Centre for Infectious Disease and Research (CIDR), Indian Institute of Science, Bengaluru-560012, India
| | - Madhura Guha
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru-560012, India; Centre for Infectious Disease and Research (CIDR), Indian Institute of Science, Bengaluru-560012, India
| | - Amit Singh
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru-560012, India; Centre for Infectious Disease and Research (CIDR), Indian Institute of Science, Bengaluru-560012, India.
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Danger perception and stress response through an olfactory sensor for the bacterial metabolite hydrogen sulfide. Neuron 2021; 109:2469-2484.e7. [PMID: 34186026 DOI: 10.1016/j.neuron.2021.05.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/01/2021] [Accepted: 05/27/2021] [Indexed: 12/11/2022]
Abstract
The olfactory system serves a critical function as a danger detection system to trigger defense responses essential for survival. The cellular and molecular mechanisms that drive such defenses in mammals are incompletely understood. Here, we have discovered an ultrasensitive olfactory sensor for the highly poisonous bacterial metabolite hydrogen sulfide (H2S) in mice. An atypical class of sensory neurons in the main olfactory epithelium, the type B cells, is activated by both H2S and low O2. These two stimuli trigger, respectively, Cnga2- and Trpc2-signaling pathways, which operate in separate subcellular compartments, the cilia and the dendritic knob. This activation drives essential defensive responses: elevation of the stress hormone ACTH, stress-related self-grooming behavior, and conditioned place avoidance. Our findings identify a previously unknown signaling paradigm in mammalian olfaction and define type B cells as chemosensory neurons that integrate distinct danger inputs from the external environment with appropriate defense outputs.
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Das M, Dewan A, Shee S, Singh A. The Multifaceted Bacterial Cysteine Desulfurases: From Metabolism to Pathogenesis. Antioxidants (Basel) 2021; 10:antiox10070997. [PMID: 34201508 PMCID: PMC8300815 DOI: 10.3390/antiox10070997] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/01/2021] [Accepted: 05/06/2021] [Indexed: 12/02/2022] Open
Abstract
Living cells have developed a relay system to efficiently transfer sulfur (S) from cysteine to various thio-cofactors (iron-sulfur (Fe-S) clusters, thiamine, molybdopterin, lipoic acid, and biotin) and thiolated tRNA. The presence of such a transit route involves multiple protein components that allow the flux of S to be precisely regulated as a function of environmental cues to avoid the unnecessary accumulation of toxic concentrations of soluble sulfide (S2−). The first enzyme in this relay system is cysteine desulfurase (CSD). CSD catalyzes the release of sulfane S from L-cysteine by converting it to L-alanine by forming an enzyme-linked persulfide intermediate on its conserved cysteine residue. The persulfide S is then transferred to diverse acceptor proteins for its incorporation into the thio-cofactors. The thio-cofactor binding-proteins participate in essential and diverse cellular processes, including DNA repair, respiration, intermediary metabolism, gene regulation, and redox sensing. Additionally, CSD modulates pathogenesis, antibiotic susceptibility, metabolism, and survival of several pathogenic microbes within their hosts. In this review, we aim to comprehensively illustrate the impact of CSD on bacterial core metabolic processes and its requirement to combat redox stresses and antibiotics. Targeting CSD in human pathogens can be a potential therapy for better treatment outcomes.
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Structural insight into the unique conformation of cystathionine β-synthase from Toxoplasma gondii. Comput Struct Biotechnol J 2021; 19:3542-3555. [PMID: 34194677 PMCID: PMC8225704 DOI: 10.1016/j.csbj.2021.05.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/31/2021] [Accepted: 05/31/2021] [Indexed: 11/23/2022] Open
Abstract
Cysteine plays a major role in the redox homeostasis and antioxidative defense mechanisms of many parasites of the phylum Apicomplexa. Of relevance to human health is Toxoplasma gondii, the causative agent of toxoplasmosis. A major route of cysteine biosynthesis in this parasite is the reverse transsulfuration pathway involving two key enzymes cystathionine β-synthase (CBS) and cystathionine γ-lyase (CGL). CBS from T. gondii (TgCBS) catalyzes the pyridoxal-5́-phosphate-dependent condensation of homocysteine with either serine or O-acetylserine to produce cystathionine. The enzyme can perform alternative reactions that use homocysteine and cysteine as substrates leading to the endogenous biosynthesis of hydrogen sulfide, another key element in maintaining the intracellular redox equilibrium. In contrast with human CBS, TgCBS lacks the N-terminal heme binding domain and is not responsive to S-adenosylmethionine. Herein, we describe the structure of a TgCBS construct that lacks amino acid residues 466-491 and shows the same activity of the native protein. TgCBS Δ466-491 was determined alone and in complex with reaction intermediates. A complementary molecular dynamics analysis revealed a unique domain organization, similar to the pathogenic mutant D444N of human CBS. Our data provides one missing piece in the structural diversity of CBSs by revealing the so far unknown three-dimensional arrangement of the CBS-type of Apicomplexa. This domain distribution is also detected in yeast and bacteria like Pseudomonas aeruginosa. These results pave the way for understanding the mechanisms by which TgCBS regulates the intracellular redox of the parasite, and have far-reaching consequences for the functional understanding of CBSs with similar domain distribution.
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40
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Hydrogen Sulfide and Carbon Monoxide Tolerance in Bacteria. Antioxidants (Basel) 2021; 10:antiox10050729. [PMID: 34063102 PMCID: PMC8148161 DOI: 10.3390/antiox10050729] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/26/2021] [Accepted: 05/03/2021] [Indexed: 12/27/2022] Open
Abstract
Hydrogen sulfide and carbon monoxide share the ability to be beneficial or harmful molecules depending on the concentrations to which organisms are exposed. Interestingly, humans and some bacteria produce small amounts of these compounds. Since several publications have summarized the recent knowledge of its effects in humans, here we have chosen to focus on the role of H2S and CO on microbial physiology. We briefly review the current knowledge on how bacteria produce and use H2S and CO. We address their potential antimicrobial properties when used at higher concentrations, and describe how microbial systems detect and survive toxic levels of H2S and CO. Finally, we highlight their antimicrobial properties against human pathogens when endogenously produced by the host and when released by external chemical donors.
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41
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Cao M, Zheng C, Yang D, Kalkreuter E, Adhikari A, Liu YC, Rateb ME, Shen B. Cryptic Sulfur Incorporation in Thioangucycline Biosynthesis. Angew Chem Int Ed Engl 2021; 60:7140-7147. [PMID: 33465268 PMCID: PMC7969429 DOI: 10.1002/anie.202015570] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/30/2020] [Indexed: 12/16/2022]
Abstract
Sulfur incorporation into natural products is a critical area of biosynthetic studies. Recently, a subset of sulfur-containing angucyclines has been discovered, and yet, the sulfur incorporation step is poorly understood. In this work, a series of thioether-bridged angucyclines were discovered, and a cryptic epoxide Michael acceptor intermediate was revealed en route to thioangucyclines (TACs) A and B. However, systematic gene deletion of the biosynthetic gene cluster (BGC) by CRISPR/Cas9 could not identify any gene responsible for the conversion of the epoxide intermediate to TACs. Instead, a series of in vitro and in vivo experiments conclusively showed that the conversion is the result of two non-enzymatic steps, possibly mediated by endogenous hydrogen sulfide. Therefore, the TACs are proposed to derive from a detoxification process. These results are expected to contribute to the study of both angucyclines and the utilization of inorganic sulfur in natural product biosynthesis.
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Affiliation(s)
| | | | - Dong Yang
- Department of Chemistry, Department of Molecular Medicine, Natural Products Discovery Center at Scripps Research, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Edward Kalkreuter
- Department of Chemistry, Department of Molecular Medicine, Natural Products Discovery Center at Scripps Research, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Ajeeth Adhikari
- Department of Chemistry, Department of Molecular Medicine, Natural Products Discovery Center at Scripps Research, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Yu-Chen Liu
- Department of Chemistry, Department of Molecular Medicine, Natural Products Discovery Center at Scripps Research, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Mostafa E. Rateb
- Department of Chemistry, Department of Molecular Medicine, Natural Products Discovery Center at Scripps Research, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Ben Shen
- Department of Chemistry, Department of Molecular Medicine, Natural Products Discovery Center at Scripps Research, The Scripps Research Institute, Jupiter, Florida 33458, United States
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42
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Cao M, Zheng C, Yang D, Kalkreuter E, Adhikari A, Liu Y, Rateb ME, Shen B. Cryptic Sulfur Incorporation in Thioangucycline Biosynthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mingming Cao
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
| | - Chengjian Zheng
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
| | - Dong Yang
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
| | - Edward Kalkreuter
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
| | - Ajeeth Adhikari
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
| | - Yu‐Chen Liu
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
| | - Mostafa E. Rateb
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
| | - Ben Shen
- Department of Chemistry Department of Molecular Medicine Natural Products Discovery Center at Scripps Research The Scripps Research Institute Jupiter FL 33458 USA
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43
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Scammahorn JJ, Nguyen ITN, Bos EM, Van Goor H, Joles JA. Fighting Oxidative Stress with Sulfur: Hydrogen Sulfide in the Renal and Cardiovascular Systems. Antioxidants (Basel) 2021; 10:373. [PMID: 33801446 PMCID: PMC7998720 DOI: 10.3390/antiox10030373] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/16/2022] Open
Abstract
Hydrogen sulfide (H2S) is an essential gaseous signaling molecule. Research on its role in physiological and pathophysiological processes has greatly expanded. Endogenous enzymatic production through the transsulfuration and cysteine catabolism pathways can occur in the kidneys and blood vessels. Furthermore, non-enzymatic pathways are present throughout the body. In the renal and cardiovascular system, H2S plays an important role in maintaining the redox status at safe levels by promoting scavenging of reactive oxygen species (ROS). H2S also modifies cysteine residues on key signaling molecules such as keap1/Nrf2, NFκB, and HIF-1α, thereby promoting anti-oxidant mechanisms. Depletion of H2S is implicated in many age-related and cardiorenal diseases, all having oxidative stress as a major contributor. Current research suggests potential for H2S-based therapies, however, therapeutic interventions have been limited to studies in animal models. Beyond H2S use as direct treatment, it could improve procedures such as transplantation, stem cell therapy, and the safety and efficacy of drugs including NSAIDs and ACE inhibitors. All in all, H2S is a prime subject for further research with potential for clinical use.
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Affiliation(s)
- Joshua J. Scammahorn
- Department of Nephrology & Hypertension, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands; (J.J.S.); (I.T.N.N.); (J.A.J.)
| | - Isabel T. N. Nguyen
- Department of Nephrology & Hypertension, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands; (J.J.S.); (I.T.N.N.); (J.A.J.)
| | - Eelke M. Bos
- Department of Neurosurgery, Erasmus Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands;
| | - Harry Van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Jaap A. Joles
- Department of Nephrology & Hypertension, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands; (J.J.S.); (I.T.N.N.); (J.A.J.)
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44
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Rahman MA, Glasgow JN, Nadeem S, Reddy VP, Sevalkar RR, Lancaster JR, Steyn AJC. The Role of Host-Generated H 2S in Microbial Pathogenesis: New Perspectives on Tuberculosis. Front Cell Infect Microbiol 2020; 10:586923. [PMID: 33330130 PMCID: PMC7711268 DOI: 10.3389/fcimb.2020.586923] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022] Open
Abstract
For centuries, hydrogen sulfide (H2S) was considered primarily as a poisonous gas and environmental hazard. However, with the discovery of prokaryotic and eukaryotic enzymes for H2S production, breakdown, and utilization, H2S has emerged as an important signaling molecule in a wide range of physiological and pathological processes. Hence, H2S is considered a gasotransmitter along with nitric oxide (•NO) and carbon monoxide (CO). Surprisingly, despite having overlapping functions with •NO and CO, the role of host H2S in microbial pathogenesis is understudied and represents a gap in our knowledge. Given the numerous reports that followed the discovery of •NO and CO and their respective roles in microbial pathogenesis, we anticipate a rapid increase in studies that further define the importance of H2S in microbial pathogenesis, which may lead to new virulence paradigms. Therefore, this review provides an overview of sulfide chemistry, enzymatic production of H2S, and the importance of H2S in metabolism and immunity in response to microbial pathogens. We then describe our current understanding of the role of host-derived H2S in tuberculosis (TB) disease, including its influences on host immunity and bioenergetics, and on Mycobacterium tuberculosis (Mtb) growth and survival. Finally, this review discusses the utility of H2S-donor compounds, inhibitors of H2S-producing enzymes, and their potential clinical significance.
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Affiliation(s)
| | - Joel N Glasgow
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Sajid Nadeem
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Vineel P Reddy
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ritesh R Sevalkar
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jack R Lancaster
- Department of Pharmacology and Chemical Biology, Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Adrie J C Steyn
- Africa Health Research Institute, Durban, South Africa.,Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States.,Centers for AIDS Research and Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, United States
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45
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Salomone F, Petta S, Micek A, Pipitone RM, Distefano A, Castruccio Castracani C, Rini F, Di Rosa M, Gardi C, Calvaruso V, Di Marco V, Li Volti G, Grimaudo S, Craxì A. Hepatitis C virus eradication by direct antiviral agents abates oxidative stress in patients with advanced liver fibrosis. Liver Int 2020; 40:2820-2827. [PMID: 32666695 DOI: 10.1111/liv.14608] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 06/20/2020] [Accepted: 07/09/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS HCV eradication improves non-hepatic outcomes such as cardiovascular diseases, although without clearly defined mechanisms. In this study we aimed to assess whether improvement of carotid atherosclerosis may be linked to a reduction in systemic oxidative stress after viral clearance. METHODS We studied a retrospective cohort of 105 patients (age 62.4 ± 11.2 years; 62 men) with F3/F4 fibrosis, characterized by carotid ultrasonography at baseline and at sustained virologic response (SVR) follow-up. Levels of 8-iso-prostaglandin F2α (F2 -isoprostanes) and other oxidative stress markers were measured on frozen sera. Association between change (denoted as Δ) in oxidative stress markers (exposures) and change in carotid intima-media thickness (cIMT) (outcome) was examined using multiple linear regression. RESULTS Subclinical atherosclerosis, defined as the presence of carotid plaque and/or cIMT ≥ 0.9, was present in 72% of the cohort. All patients achieved SVR that led to reduction in cIMT (0.92 ± 0.20 vs 0.83 ± 0.21 mm, P < .001). HCV eradication markedly decreased serum levels of F2 -isoprostanes (620.5 [143.2; 1904.1] vs 119.51 [63.2; 400.6] pg/mL, P < .0001), lipid hydroperoxides (13.8 [6.3; 20.7] vs 4.9 [2.3; 9.6] nmol/μl, P < .0001) and 8-hydroxy-2'-deoxyguanosine (558.9 [321.0; 6301.2] vs 294.51 [215.31; 408.95] pg/mL, P < .0001), whereas increased serum GPx activity (10.44 [4.6; 16.3] vs 13.75 [9.42; 20.63] nmol/min/mL, P = .001). By multiple linear regression analysis ΔcIMT was independently associated with ΔF2 -isoprostanes (β: 1.746 [0.948; 2.543]; P < .0001) after adjustment for age, baseline F2 -isoprostanes and baseline IMT. CONCLUSIONS Besides association of lipid peroxidation with severity of liver disease, the reduction in F2 -isoprostanes may be involved in the improvement of atherosclerosis after HCV eradication.
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Affiliation(s)
- Federico Salomone
- Division of Gastroenterology, Ospedale di Acireale, Azienda Sanitaria Provinciale di Catania, Catania, Italy
| | - Salvatore Petta
- Section of Gastroenterology and Hepatology, PROMISE, University of Palermo, Palermo, Italy
| | - Agnieszka Micek
- Department of Nursing Management and Epidemiology Nursing, Jagiellonian University Medical College, Krakow, Poland
| | - Rosaria Maria Pipitone
- Section of Gastroenterology and Hepatology, PROMISE, University of Palermo, Palermo, Italy
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Francesca Rini
- Section of Gastroenterology and Hepatology, PROMISE, University of Palermo, Palermo, Italy
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Concetta Gardi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Vincenza Calvaruso
- Section of Gastroenterology and Hepatology, PROMISE, University of Palermo, Palermo, Italy
| | - Vito Di Marco
- Section of Gastroenterology and Hepatology, PROMISE, University of Palermo, Palermo, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Stefania Grimaudo
- Section of Gastroenterology and Hepatology, PROMISE, University of Palermo, Palermo, Italy
| | - Antonio Craxì
- Section of Gastroenterology and Hepatology, PROMISE, University of Palermo, Palermo, Italy
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46
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Capdevila DA, Walsh BJC, Zhang Y, Dietrich C, Gonzalez-Gutierrez G, Giedroc DP. Structural basis for persulfide-sensing specificity in a transcriptional regulator. Nat Chem Biol 2020; 17:65-70. [PMID: 33106663 DOI: 10.1038/s41589-020-00671-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 09/11/2020] [Indexed: 12/23/2022]
Abstract
Cysteine thiol-based transcriptional regulators orchestrate the coordinated regulation of redox homeostasis and other cellular processes by 'sensing' or detecting a specific redox-active molecule, which in turn activates the transcription of a specific detoxification pathway. The extent to which these sensors are truly specific in cells for a singular class of reactive small-molecule stressors, for example, reactive oxygen or sulfur species, is largely unknown. Here, we report structural and mechanistic insights into the thiol-based transcriptional repressor SqrR, which reacts exclusively with oxidized sulfur species such as persulfides, to yield a tetrasulfide bridge that inhibits DNA operator-promoter binding. Evaluation of crystallographic structures of SqrR in various derivatized states, coupled with the results of a mass spectrometry-based kinetic profiling strategy, suggest that persulfide selectivity is determined by structural frustration of the disulfide form. These findings led to the identification of an uncharacterized repressor from the bacterial pathogen Acinetobacter baumannii as a persulfide sensor.
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Affiliation(s)
- Daiana A Capdevila
- Department of Chemistry and Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, USA.,Fundación Instituto Leloir, Buenos Aires, Argentina
| | - Brenna J C Walsh
- Department of Chemistry and Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, USA
| | - Yifan Zhang
- Department of Chemistry and Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, USA
| | - Christopher Dietrich
- Department of Chemistry and Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, USA
| | - Giovanni Gonzalez-Gutierrez
- Department of Chemistry and Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, USA
| | - David P Giedroc
- Department of Chemistry and Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, USA.
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Dattilo M. The role of host defences in Covid 19 and treatments thereof. Mol Med 2020; 26:90. [PMID: 32993497 PMCID: PMC7522454 DOI: 10.1186/s10020-020-00216-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/07/2020] [Indexed: 01/08/2023] Open
Abstract
Hydrogen sulfide (H2S) is a natural defence against the infections from enveloped RNA viruses and is likely involved also in Covid 19. It was already shown to inhibit growth and pathogenic mechanisms of a variety of enveloped RNA viruses and it was now found that circulating H2S is higher in Covid 19 survivors compared to fatal cases. H2S release is triggered by carbon monoxide (CO) from the catabolism of heme by inducible heme oxygenase (HO-1) and heme proteins possess catalytic activity necessary for the H2S signalling by protein persulfidation. Subjects with a long promoter for the HMOX1 gene, coding for HO-1, are predicted for lower efficiency of this mechanism. SARS-cov-2 exerts ability to attack the heme of hemoglobin and other heme-proteins thus hampering both release and signalling of H2S. Lack of H2S-induced persulfidation of the KATP channels of leucocytes causes adhesion and release of the inflammatory cytokines, lung infiltration and systemic endothelial damage with hyper-coagulability. These events largely explain the sex and age distribution, clinical manifestations and co-morbidities of Covid-19. The understanding of this mechanism may be of guidance in re-evaluating the ongoing therapeutic strategies, with special attention to the interaction with mechanical ventilation, paracetamol and chloroquine use, and in the individuation of genetic traits causing increased susceptibility to the disruption of these physiologic processes and to a critical Covid 19. Finally, an array of therapeutic interventions with the potential to clinically modulate the HO-1/CO/H2S axis is already available or under development. These include CO donors and H2S donors and a boost to the endogenous production of H2S is also possible.
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48
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Production of Hydrogen Sulfide by Fermentation in Rumen and Its Impact on Health and Production of Animals. Processes (Basel) 2020. [DOI: 10.3390/pr8091169] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hydrogen sulfide is a Janus-faced molecule with many beneficial and toxic effects on the animal health. In ruminants, rumen fermentation plays a vital role in the digestion and absorption of nutrients. During rumen fermentation, the production of hydrogen sulfide can occur, and it can be rapidly absorbed into the body of the animals through the intestinal wall. If the production of hydrogen sulfide concentration is higher in the rumen, it can cause a toxic effect on ruminants known as poliomyelitis. The production of hydrogen sulfide depends on the population of sulfate-reducing bacteria in the rumen. In rodents, H2S maintains the normal physiology of the gastrointestinal tract and also improves the healing of the chronic gastric ulcer. In the gut, H2S regulates physiological functions such as inflammation, ischemia–reperfusion injury and motility. In this review article, we summarize the toxicity occurrence in the body of animals due to high levels of hydrogen sulfide production and also recent progress in the studies of physiological function of H2S in the gut, with a special emphasis on bacteria-derived H2S is discussed in this review.
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Mishra R, Kohli S, Malhotra N, Bandyopadhyay P, Mehta M, Munshi M, Adiga V, Ahuja VK, Shandil RK, Rajmani RS, Seshasayee ASN, Singh A. Targeting redox heterogeneity to counteract drug tolerance in replicating Mycobacterium tuberculosis. Sci Transl Med 2020; 11:11/518/eaaw6635. [PMID: 31723039 DOI: 10.1126/scitranslmed.aaw6635] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 06/26/2019] [Accepted: 10/25/2019] [Indexed: 12/23/2022]
Abstract
The capacity of Mycobacterium tuberculosis (Mtb) to tolerate multiple antibiotics represents a major problem in tuberculosis (TB) management. Heterogeneity in Mtb populations is one of the factors that drives antibiotic tolerance during infection. However, the mechanisms underpinning this variation in bacterial population remain poorly understood. Here, we show that phagosomal acidification alters the redox physiology of Mtb to generate a population of replicating bacteria that display drug tolerance during infection. RNA sequencing of this redox-altered population revealed the involvement of iron-sulfur (Fe-S) cluster biogenesis, hydrogen sulfide (H2S) gas, and drug efflux pumps in antibiotic tolerance. The fraction of the pH- and redox-dependent tolerant population increased when Mtb infected macrophages with actively replicating HIV-1, suggesting that redox heterogeneity could contribute to high rates of TB therapy failure during HIV-TB coinfection. Pharmacological inhibition of phagosomal acidification by the antimalarial drug chloroquine (CQ) eradicated drug-tolerant Mtb, ameliorated lung pathology, and reduced postchemotherapeutic relapse in in vivo models. The pharmacological profile of CQ (C max and AUClast) exhibited no major drug-drug interaction when coadministered with first line anti-TB drugs in mice. Our data establish a link between phagosomal pH, redox metabolism, and drug tolerance in replicating Mtb and suggest repositioning of CQ to shorten TB therapy and achieve a relapse-free cure.
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Affiliation(s)
- Richa Mishra
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India.,Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Sakshi Kohli
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India.,Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Nitish Malhotra
- National Centre for Biological Sciences (NCBS), Tata Institute of Fundamental Research (TIFR), Bangalore 560065, India
| | - Parijat Bandyopadhyay
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India.,Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Mansi Mehta
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India.,Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - MohamedHusen Munshi
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India.,Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Vasista Adiga
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | | | - Radha K Shandil
- Foundation for Neglected Disease Research, Bangalore 560065, India
| | - Raju S Rajmani
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Aswin Sai Narain Seshasayee
- National Centre for Biological Sciences (NCBS), Tata Institute of Fundamental Research (TIFR), Bangalore 560065, India
| | - Amit Singh
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India.
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50
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Conter C, Fruncillo S, Fernández-Rodríguez C, Martínez-Cruz LA, Dominici P, Astegno A. Cystathionine β-synthase is involved in cysteine biosynthesis and H 2S generation in Toxoplasma gondii. Sci Rep 2020; 10:14657. [PMID: 32887901 PMCID: PMC7474069 DOI: 10.1038/s41598-020-71469-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 08/11/2020] [Indexed: 11/09/2022] Open
Abstract
Cystathionine β-synthase (CBS) catalyzes the condensation of serine and homocysteine to water and cystathionine, which is then hydrolyzed to cysteine, α-ketobutyrate and ammonia by cystathionine γ-lyase (CGL) in the reverse transsulfuration pathway. The protozoan parasite Toxoplasma gondii, the causative agent of toxoplasmosis, includes both CBS and CGL enzymes. We have recently reported that the putative T. gondii CGL gene encodes a functional enzyme. Herein, we cloned and biochemically characterized cDNA encoding CBS from T. gondii (TgCBS), which represents a first example of protozoan CBS that does not bind heme but possesses two C-terminal CBS domains. We demonstrated that TgCBS can use both serine and O-acetylserine to produce cystathionine, converting these substrates to an aminoacrylate intermediate as part of a PLP-catalyzed β-replacement reaction. Besides a role in cysteine biosynthesis, TgCBS can also efficiently produce hydrogen sulfide, preferentially via condensation of cysteine and homocysteine. Unlike the human counterpart and similar to CBS enzymes from lower organisms, the TgCBS activity is not stimulated by S-adenosylmethionine. This study establishes the presence of an intact functional reverse transsulfuration pathway in T. gondii and demonstrates the crucial role of TgCBS in biogenesis of H2S.
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Affiliation(s)
- Carolina Conter
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Silvia Fruncillo
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - Carmen Fernández-Rodríguez
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building 801A, 48160, Derio, Spain
| | - Luis Alfonso Martínez-Cruz
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building 801A, 48160, Derio, Spain
| | - Paola Dominici
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Alessandra Astegno
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
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