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Aziz S, Waqas M, Iqbal A, Halim SA, Abdellattif MH, Khan A, Al-Harrasi A. Structure-based identification of potential substrate antagonists for isethionate sulfite-lyase enzyme of Bilophila Wadsworthia: Towards novel therapeutic intervention to curb gut-associated illness. Int J Biol Macromol 2023; 240:124428. [PMID: 37062383 DOI: 10.1016/j.ijbiomac.2023.124428] [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: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/09/2023] [Indexed: 04/18/2023]
Abstract
Bilophila wadsworthia is one of the prominent sources of hydrogen sulfide (H2S) production in appendices, excessive levels of which can result in a weaker colonic mucus barrier, inflammatory bowel disease, and colorectal cancer. Isethionate sulfite-lyase (IslA) enzyme catalyzes H2S production by cleaving CS bond in isethionate, producing acetaldehyde and sulfite. In this study, we aimed to identify potential substrate antagonists for IsIA using a structure-based drug design. Initially, pharmacophore-based computational screening of the ZINC20 database yielded 66 hits that were subjected to molecular docking targeting the isethionate binding site of IsIA. Based on striking docking scores, nine compounds showed strong interaction with critical IsIA residues (Arg189, Gln193, Glu470, Cys468, and Arg678), drug-like features, appropriate adsorption, metabolism, excretion, and excretion profile with non-toxicity. Molecular dynamics simulations uncovered the significant impact of binding the compounds on protein conformational dynamics. Finally, binding free energies revealed substantial binding affinity (ranging from -35.23 to -53.88 kcal/mol) of compounds (ZINC913876497, ZINC913856647, ZINC914263733, ZINC914137795, ZINC915757996, ZINC914357083, ZINC913934833, ZINC9143362047, and ZINC913854740) for IsIA. The compounds proposed herein through a multi-faceted computational strategy can be experimentally validated as potential substrate antagonists of B. wadsworthia's IsIA for developing new medications to curb gut-associated illness in the future.
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Affiliation(s)
- Shahkaar Aziz
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Muhammad Waqas
- Department of Biotechnology and Genetic Engineering, Hazara University, Mansehra, Pakistan; Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman
| | - Aqib Iqbal
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan; Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan.
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman
| | - Magda H Abdellattif
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman.
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman.
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Taurine Supplementation as a Neuroprotective Strategy upon Brain Dysfunction in Metabolic Syndrome and Diabetes. Nutrients 2022; 14:nu14061292. [PMID: 35334949 PMCID: PMC8952284 DOI: 10.3390/nu14061292] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 02/07/2023] Open
Abstract
Obesity, type 2 diabetes, and their associated comorbidities impact brain metabolism and function and constitute risk factors for cognitive impairment. Alterations to taurine homeostasis can impact a number of biological processes, such as osmolarity control, calcium homeostasis, and inhibitory neurotransmission, and have been reported in both metabolic and neurodegenerative disorders. Models of neurodegenerative disorders show reduced brain taurine concentrations. On the other hand, models of insulin-dependent diabetes, insulin resistance, and diet-induced obesity display taurine accumulation in the hippocampus. Given the possible cytoprotective actions of taurine, such cerebral accumulation of taurine might constitute a compensatory mechanism that attempts to prevent neurodegeneration. The present article provides an overview of brain taurine homeostasis and reviews the mechanisms by which taurine can afford neuroprotection in individuals with obesity and diabetes. We conclude that further research is needed for understanding taurine homeostasis in metabolic disorders with an impact on brain function.
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Burrichter AG, Dörr S, Bergmann P, Haiß S, Keller A, Fournier C, Franchini P, Isono E, Schleheck D. Bacterial microcompartments for isethionate desulfonation in the taurine-degrading human-gut bacterium Bilophila wadsworthia. BMC Microbiol 2021; 21:340. [PMID: 34903181 PMCID: PMC8667426 DOI: 10.1186/s12866-021-02386-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/08/2021] [Indexed: 11/15/2022] Open
Abstract
Background Bilophila wadsworthia, a strictly anaerobic, sulfite-reducing bacterium and common member of the human gut microbiota, has been associated with diseases such as appendicitis and colitis. It is specialized on organosulfonate respiration for energy conservation, i.e., utilization of dietary and host-derived organosulfonates, such as taurine (2-aminoethansulfonate), as sulfite donors for sulfite respiration, producing hydrogen sulfide (H2S), an important intestinal metabolite that may have beneficial as well as detrimental effects on the colonic environment. Its taurine desulfonation pathway involves the glycyl radical enzyme (GRE) isethionate sulfite-lyase (IslAB), which cleaves isethionate (2-hydroxyethanesulfonate) into acetaldehyde and sulfite. Results We demonstrate that taurine metabolism in B. wadsworthia 3.1.6 involves bacterial microcompartments (BMCs). First, we confirmed taurine-inducible production of BMCs by proteomic, transcriptomic and ultra-thin sectioning and electron-microscopical analyses. Then, we isolated BMCs from taurine-grown cells by density-gradient ultracentrifugation and analyzed their composition by proteomics as well as by enzyme assays, which suggested that the GRE IslAB and acetaldehyde dehydrogenase are located inside of the BMCs. Finally, we are discussing the recycling of cofactors in the IslAB-BMCs and a potential shuttling of electrons across the BMC shell by a potential iron-sulfur (FeS) cluster-containing shell protein identified by sequence analysis. Conclusions We characterized a novel subclass of BMCs and broadened the spectrum of reactions known to take place enclosed in BMCs, which is of biotechnological interest. We also provided more details on the energy metabolism of the opportunistic pathobiont B. wadsworthia and on microbial H2S production in the human gut. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02386-w.
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Affiliation(s)
- Anna G Burrichter
- Department of Biology, University of Konstanz, Konstanz, Germany. .,Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany. .,Max von Pettenkofer Institute of Hygiene and Medical Microbiology, Faculty of Medicine, LMU Munich, Munich, Germany.
| | - Stefanie Dörr
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Paavo Bergmann
- Electron Microscopy Centre, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Sebastian Haiß
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Anja Keller
- Department of Biology, University of Konstanz, Konstanz, Germany.,Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany
| | | | - Paolo Franchini
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Erika Isono
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - David Schleheck
- Department of Biology, University of Konstanz, Konstanz, Germany. .,Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany.
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Nguyen K, Ito S, Maeyama S, Schaffer SW, Murakami S, Ito T. In Vivo and In Vitro Study of N-Methyltaurine on Pharmacokinetics and Antimuscle Atrophic Effects in Mice. ACS OMEGA 2020; 5:11241-11246. [PMID: 32455249 PMCID: PMC7241010 DOI: 10.1021/acsomega.0c01588] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Various types of seaweed are potential functional foods as they contain multiple bioactive compounds. N-Methyltaurine (NMT) is a taurine derivative metabolite found in a type of red algae. The functional actions of NMT in mammalian animals have not been investigated, but the parent compound, taurine, possesses a variety of cellular actions. To explore the beneficial role of NMT in animals, the present study analyzed the effect of NMT against glucocorticoid-induced skeletal muscle atrophy. Glucocorticoids are one of the major causes of pathological muscle atrophy. Initially, we assessed the bioavailability of ingested NMT by determining its concentration in mouse blood. The bioavailability of orally administered NMT was found to be 96.1% that of intravenously administered NMT. Mice maintained on water containing 0.5% NMT for several days lead to the distribution of the taurine derivative to various tissues, including skeletal muscles. Like taurine, the delivery of NMT to skeletal muscles or myoblast cells is cytoprotective. The treatment with NMT prevents dexamethasone-induced atrophy of myotubes derived from C2C12 cells. Similarly, the addition of 0.5% NMT to drinking water attenuates dexamethasone-mediated reduction in muscle mass of the treated mice. The present study supports the hypothesis that orally administered NMT partially reverses skeletal muscle atrophy.
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Affiliation(s)
- Khanh
Hoang Nguyen
- Department
of Biosciences and Biotechnology, Fukui
Prefectural University, 4-1-1 Matsuokakenjojima, Eiheiji-cho, Yoshida-gun, Fukui 910-1195, Japan
| | - Shunta Ito
- Department
of Biosciences and Biotechnology, Fukui
Prefectural University, 4-1-1 Matsuokakenjojima, Eiheiji-cho, Yoshida-gun, Fukui 910-1195, Japan
| | - Sayuri Maeyama
- Department
of Biosciences and Biotechnology, Fukui
Prefectural University, 4-1-1 Matsuokakenjojima, Eiheiji-cho, Yoshida-gun, Fukui 910-1195, Japan
| | - Stephen W. Schaffer
- College
of Medicine, University of South Alabama, 5795 USA Drive North, CSAB 170, Mobile, Alabama 36688, United States
| | - Shigeru Murakami
- Department
of Biosciences and Biotechnology, Fukui
Prefectural University, 4-1-1 Matsuokakenjojima, Eiheiji-cho, Yoshida-gun, Fukui 910-1195, Japan
| | - Takashi Ito
- Department
of Biosciences and Biotechnology, Fukui
Prefectural University, 4-1-1 Matsuokakenjojima, Eiheiji-cho, Yoshida-gun, Fukui 910-1195, Japan
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Chao J, Huo TI, Cheng HY, Tsai JC, Liao JW, Lee MS, Qin XM, Hsieh MT, Pao LH, Peng WH. Gallic acid ameliorated impaired glucose and lipid homeostasis in high fat diet-induced NAFLD mice. PLoS One 2014; 9:e96969. [PMID: 24918580 PMCID: PMC4053315 DOI: 10.1371/journal.pone.0096969] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 02/07/2014] [Indexed: 12/19/2022] Open
Abstract
Gallic acid (GA), a naturally abundant plant phenolic compound in vegetables and fruits, has been shown to have potent anti-oxidative and anti-obesity activity. However, the effects of GA on nonalcoholic fatty liver disease (NAFLD) are poorly understood. In this study, we investigated the beneficial effects of GA administration on nutritional hepatosteatosis model by a more “holistic view” approach, namely 1H NMR-based metabolomics, in order to prove efficacy and to obtain information that might lead to a better understanding of the mode of action of GA. Male C57BL/6 mice were placed for 16 weeks on either a normal chow diet, a high fat diet (HFD, 60%), or a high fat diet supplemented with GA (50 and 100 mg/kg/day, orally). Liver histopathology and serum biochemical examinations indicated that the daily administration of GA protects against hepatic steatosis, obesity, hypercholesterolemia, and insulin resistance among the HFD-induced NAFLD mice. In addition, partial least squares discriminant analysis scores plots demonstrated that the cluster of HFD fed mice is clearly separated from the normal group mice plots, indicating that the metabolic characteristics of these two groups are distinctively different. Specifically, the GA-treated mice are located closer to the normal group of mice, indicating that the HFD-induced disturbances to the metabolic profile were partially reversed by GA treatment. Our results show that the hepatoprotective effect of GA occurs in part through a reversing of the HFD caused disturbances to a range of metabolic pathways, including lipid metabolism, glucose metabolism (glycolysis and gluconeogenesis), amino acids metabolism, choline metabolism and gut-microbiota-associated metabolism. Taken together, this study suggested that a 1H NMR-based metabolomics approach is a useful platform for natural product functional evaluation. The selected metabolites are potentially useful as preventive action biomarkers and could also be used to help our further understanding of the effect of GA in hepatosteatosis mice.
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Affiliation(s)
- Jung Chao
- Institute of Pharmacology, College of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Teh-Ia Huo
- Institute of Pharmacology, College of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Oncology and Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hao-Yuan Cheng
- Department of Nursing, Chung Jen College of Nursing, Health Sciences and Management, Chia-Yi, Taiwan
| | - Jen-Chieh Tsai
- Department of Health and Nutrition Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
- Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Jiunn-Wang Liao
- Graduate Institute of Veterinary Pathology, National Chung Hsing University, Taichung, Taiwan
| | - Meng-Shiou Lee
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Xue-Mei Qin
- Modern Research Center for Traditional Chinese Medicine of Shanxi University, Taiyuan, China
| | - Ming-Tsuen Hsieh
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Li-Heng Pao
- Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
- * E-mail: (WHP); (LHP)
| | - Wen-Huang Peng
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung, Taiwan
- * E-mail: (WHP); (LHP)
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Coen M, Rademacher PM, Zou W, Scott M, Ganey PE, Roth R, Nelson SD. Comparative NMR-Based Metabonomic Investigation of the Metabolic Phenotype Associated with Tienilic Acid and Tienilic Acid Isomer. Chem Res Toxicol 2012; 25:2412-22. [DOI: 10.1021/tx3002803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Muireann Coen
- Biomolecular
Medicine, Department
of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, United Kingdom
| | - Peter M. Rademacher
- Department of Medicinal Chemistry, University of Washington, 1959 NE Pacific Street, Health
Sciences Building, Seattle, Washington 98195-7610, United States
| | - Wei Zou
- Department of Microbiology and
Molecular Genetics, 2215 Biomedical Physical Sciences, Michigan State University, East Lansing, Michigan 48824-1302,
United States
| | - Michael Scott
- Department
of Pathobiology and
Diagnostic Investigation, G-347 Veterinary Medical Center, Michigan State University, East Lansing, Michigan 48824-1314,
United States
| | - Patricia E. Ganey
- Department
of Pharmacology and
Toxicology, 221 Food Safety and Toxicology Building, Michigan State University, East Lansing, Michigan 48824-1302,
United States
| | - Robert Roth
- Department
of Pharmacology and
Toxicology, 221 Food Safety and Toxicology Building, Michigan State University, East Lansing, Michigan 48824-1302,
United States
| | - Sidney D. Nelson
- Department of Medicinal Chemistry, University of Washington, 1959 NE Pacific Street, Health
Sciences Building, Seattle, Washington 98195-7610, United States
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Bollard ME, Contel NR, Ebbels TMD, Smith L, Beckonert O, Cantor GH, Lehman-McKeeman L, Holmes EC, Lindon JC, Nicholson JK, Keun HC. NMR-based metabolic profiling identifies biomarkers of liver regeneration following partial hepatectomy in the rat. J Proteome Res 2010; 9:59-69. [PMID: 19445528 DOI: 10.1021/pr900200v] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Tissue injury and repair are often overlapping consequences of disease or toxic exposure, but are not often considered as distinct processes in molecular studies. To establish the systemic metabolic response to liver regeneration, the partial hepatectomy (PH) model has been studied in the rat by an integrated metabonomics strategy, utilizing (1)H NMR spectroscopy of urine, liver and serum. Male Sprague-Dawley rats were subjected to either surgical removal of approximately two-thirds of the liver, sham operated (SO) surgery, or no treatment (n = 10/group) and samples collected over a 7 day period. A number of urinary metabolic perturbations were observed in PH rats compared with SO and control animals, including elevated levels of taurine, hypotaurine, creatine, guanidinoacetic acid, betaine, dimethylglycine and bile acids. Serum betaine and creatine were also elevated after PH, while levels of triglyceride were reduced. In the liver, triglycerides, cholesterol, alanine and betaine were elevated after PH, while choline and its derivatives were reduced. Upon examining the dynamic pattern of urinary response (the 'metabolic trajectory'), several metabolites could be categorized into groups likely to reflect perturbations to different processes such as dietary intake or hepatic 1-carbon metabolism. Several of the urinary perturbations observed during the regenerative phase of the PH model have also been observed after exposure to liver toxins, indicating that hepatic regeneration may make a contribution to the systemic alterations in metabolism associated with hepatotoxicity. The observed changes in 1-carbon and lipid metabolism are consistent with the proposed role of these pathways in the activation of a regenerative response and provide further evidence regarding the utility of urinary NMR profiles in the detection of liver-specific pathology. Biofluid (1)H NMR-based metabolic profiling provides new insight into the role of metabolism of liver regeneration, and suggests putative biomarkers for the noninvasive monitoring of the regeneration process.
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Affiliation(s)
- Mary E Bollard
- Department of Biomolecular Medicine, Division of Surgery, Oncology, Reproductive Biology & Anaesthetics, Faculty of Medicine, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
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Stipanuk MH. Sulfur amino acid metabolism: pathways for production and removal of homocysteine and cysteine. Annu Rev Nutr 2004; 24:539-77. [PMID: 15189131 DOI: 10.1146/annurev.nutr.24.012003.132418] [Citation(s) in RCA: 677] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Tissue concentrations of both homocysteine (Hcy) and cysteine (Cys) are maintained at low levels by regulated production and efficient removal of these thiols. The regulation of the metabolism of methionine and Cys is discussed from the standpoint of maintaining low levels of Hcy and Cys while, at the same time, ensuring an adequate supply of these thiols for their essential functions. S-Adenosylmethionine coordinately regulates the flux through remethylation and transsulfuration, and glycine N-methyltransferase regulates flux through transmethylation and hence the S-adenosylmethionine/S-adenosylhomocysteine ratio. Cystathionine beta-synthase activity is also regulated in response to the redox environment, and transcription of the gene is hormonally regulated in response to fuel supply (insulin, glucagon, and glucocorticoids). The H2S-producing capacity of cystathionine gamma-lyase may be regulated in response to nitric oxide. Cys is substrate for a variety of anabolic and catabolic enzymes. Its concentration is regulated primarily by hepatic Cys dioxygenase; the level of Cys dioxygenase is upregulated in a Cys-responsive manner via a decrease in the rate of polyubiquitination and, hence, degradation by the 26S proteasome.
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Affiliation(s)
- Martha H Stipanuk
- Division of Nutritional Sciences, Cornell University, Ithaca, New York 14853, USA.
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