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Wang S, Ding Y, Jiang W. CSE/H2S ameliorates colitis in mice via protection of enteric glial cells and inhibition of the RhoA/ROCK pathway. Front Immunol 2022; 13:966881. [PMID: 36189321 PMCID: PMC9520914 DOI: 10.3389/fimmu.2022.966881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/26/2022] [Indexed: 11/19/2022] Open
Abstract
The enteric glial cells (EGCs) participate in the homeostasis of the gastrointestinal tract, and RhoA/ROCK signaling pathway plays a vital role in colonic tight junctions. Hydrogen sulfide (H2S) has been reported to alleviate colitis. However, the effect and mechanism of endogenous H2S on colitis remain unclear. This study established a Cystathionine-γ-lyase (CSE) knockout mouse model, a significant source of H2S production in the gut. The role of CSE-produced H2S on EGCs and the RhoA/ROCK signaling pathway was investigated in experimental colitis using CSE knockout (KO) and wild-type (WT) mice. CSE gene knockout animals presented with disease progression, more deteriorated clinical scores, colon shortening, and histological damage. EGCs dysfunction, characterized by decreased expression of the glial fibrillary acidic protein (GFAP), C3, and S100A10, was observed in the colon of WT and KO mice, especially in KO mice. RhoA/ROCK pathway was significantly upregulated in colon of colitis mice, which was more evident in KO mice. Pretreatment with NaHS, an exogenous H2S donor, significantly ameliorated mucosal injury and inhibited the expression of proinflammatory factors. Furthermore, we found that NaHS promoted the transformation of EGCs from “A1” to “A2” type, with decreased expression of C3 and increased expression of S100A10. These findings suggest that CSE/H2S protects mice from colon inflammation, which may be associated with preserving EGCs function by promoting EGCs transformation and inhibiting the RhoA/ROCK pathway.
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Affiliation(s)
- Song Wang
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yanyu Ding
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Wenjun Jiang
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Wenjun Jiang,
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Huang D, Zhang Y, Long J, Yang X, Bao L, Yang Z, Wu B, Si R, Zhao W, Peng C, Wang A, Yan D. Polystyrene microplastic exposure induces insulin resistance in mice via dysbacteriosis and pro-inflammation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:155937. [PMID: 35588841 DOI: 10.1016/j.scitotenv.2022.155937] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/21/2022] [Accepted: 05/10/2022] [Indexed: 05/14/2023]
Abstract
Microplastics (MPs) as emerging contaminants have become a global environmental problem. However, studies on the effects of MPs on metabolic diseases remain limited. Here, we evaluated the effects of polystyrene (PS), one of the most prominent types of MPs, on insulin sensitivity in mice fed with normal chow diet (NCD) or high-fat diet (HFD), and explained the underlying mechanisms. Mice fed with NCD or HFD both showed insulin resistance (IR) after PS exposure accompanied by increased plasma lipopolysaccharide and pro-inflammatory cytokines such as tumor necrosis factor-α and interleukin-1β. Exposure to PS also resulted in a significant decrease in the richness and diversity of gut microbiota, particularly an increase in the relative abundance of Gram-negative bacteria such as Prevotellaceae and Enterobacteriaceae. Additionally, PS with a small particle size (5 μm) accumulated in the liver, kidneys and blood vessels of mice. Further analyses showed inhibition of the insulin signaling pathway in the liver of PS exposed mice, such as inhibition of IRS1 and decreased expression of PI3K. Hence, the mechanism of PS exposure to induce IR in mice might be mediated through regulating gut microbiota and PS accumulation in tissues, stimulating inflammation and inhibiting the insulin signaling pathway. In conclusion, PS might be a potential environmental contaminant that causes metabolic diseases associated with IR.
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Affiliation(s)
- Dingjie Huang
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China; Beijing Key Laboratory for Evaluation of Rational Drug Use, Beijing 100038, China
| | - Ying Zhang
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China
| | - Jianglan Long
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China
| | - Xinyu Yang
- Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Li Bao
- Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Zhirui Yang
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China
| | - Bowen Wu
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China
| | - Ruxue Si
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China
| | - Wei Zhao
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China
| | - Cheng Peng
- Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Aiting Wang
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China.
| | - Dan Yan
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Institute of Clinical Pharmacy, Beijing 100050, China; Beijing Key Laboratory for Evaluation of Rational Drug Use, Beijing 100038, China.
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53
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Thanki KK, Johnson P, Higgins EJ, Maskey M, Phillips C, Dash S, Almenas FA, Govar AA, Tian B, Villéger R, Beswick E, Wang R, Szabo C, Chao C, Pinchuk IV, Hellmich MR, Módis K. Deletion of cystathionine-γ-lyase in bone marrow-derived cells promotes colitis-associated carcinogenesis. Redox Biol 2022; 55:102417. [PMID: 35933902 PMCID: PMC9357841 DOI: 10.1016/j.redox.2022.102417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/27/2022] [Accepted: 07/17/2022] [Indexed: 11/24/2022] Open
Abstract
Ulcerative colitis (UC) is characterized by widespread relapsing inflammation of the colonic mucosa. Colitis-associated cancer (CAC) is one of the most serious complications of a prolonged history of UC. Hydrogen sulfide (H2S) has emerged as an important physiological mediator of gastrointestinal homeostasis, limiting mucosal inflammation and promoting tissue healing in response to injury. Inhibition of cystathionine-γ-lyase (CSE)-dependent H2S production in animal models of UC has been shown to exacerbate colitis and delay tissue repair. It is unknown whether CSE plays a role in CAC, or the downregulation of CSE expression and/or activity promotes CAC development. In humans, we observed a significant decrease in CSE expression in colonic biopsies from patients with UC. Using the dextran sodium sulfate (DSS) model of epithelium injury-induced colitis and global CSE KO mouse strain, we demonstrated that CSE is critical in limiting mucosal inflammation and stimulating epithelial cell proliferation in response to injury. In vitro studies showed that CSE activity stimulates epithelial cell proliferation, basal and cytokine-stimulated cell migration, as well as cytokine regulation of transepithelial permeability. In the azoxymethane (AOM)/DSS model of CAC, the loss of CSE expression accelerated both the development and progression of CAC. The increased tumor multiplicity and severity of CAC observed in CSE-KO mice were associated with reduced levels of mucosal IL-10 expression and increased levels of IL-6. Restoring CSE expression in bone marrow (BM) cells of CSE-KO mice through reciprocal BM transplantation raised mucosal IL-10 expression, decreased IL-6 level, and reduced the number of aberrant crypt foci and tumors in AOM/DSS-treated mice. These studies demonstrate that CSE expression in BM cells plays a critical role in suppressing CAC in mice. Furthermore, the data suggest that the inhibitory effects of CSE on the development of CAC are due, in part, to the modulation of mucosal pro-and anti-inflammatory cytokine expression.
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Affiliation(s)
- Ketan K Thanki
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Paul Johnson
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Edward J Higgins
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Manjit Maskey
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Ches'Nique Phillips
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Swetaleena Dash
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | | | | | - Bing Tian
- Department of Internal Medicine, University of Texas Medical, Galveston, TX, USA.
| | - Romain Villéger
- Department of Internal Medicine, University of Texas Medical, Galveston, TX, USA.
| | - Ellen Beswick
- Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.
| | - Rui Wang
- Department of Biology, York University, Toronto, ON, Canada.
| | - Csaba Szabo
- Chair of Pharmacology, Section of Science and Medicine, University of Fribourg, Fribourg, Switzerland.
| | - Celia Chao
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Irina V Pinchuk
- Department of Internal Medicine, University of Texas Medical, Galveston, TX, USA.
| | - Mark R Hellmich
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Katalin Módis
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA.
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Fosnacht KG, Hammers MD, Earp MS, Gilbert AK, Pluth MD. A Cell Trappable Methyl Rhodol-Based Fluorescent Probe for Hydrogen Sulfide Detection. Chem Asian J 2022; 17:e202200426. [PMID: 35696559 PMCID: PMC9388573 DOI: 10.1002/asia.202200426] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/03/2022] [Indexed: 11/10/2022]
Abstract
Hydrogen sulfide is a biologically important molecule and developing chemical tools that enable further investigations into the functions of H2 S is essential. Fluorescent turn-on H2 S probes have been developed for use in cellulo and in vivo, but the membrane permeability of these probes can lead to probe leakage and signal attenuation over time. Here we report a cell trappable fluorescent probe for H2 S, CT-MeRhoAz, which is based on a methylrhodolazide scaffold derivatized with an acetoxymethyl ester group. Prior to ester cleavage, the CT-MeRhoAz probe generates a 2500-fold turn-on response to H2 S, which is enhanced to a 3000-fold response for the carboxylic acid form of the probe. Additionally, the probe is highly selective for H2 S over other biologically relevant sulfur, oxygen, and nitrogen-based analytes. Live cell imaging experiments confirmed the biocompatibility of CT-MeRhoAz and also that it is cell trappable, unlike the parent MeRhoAz scaffold.
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Affiliation(s)
- Kaylin G Fosnacht
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, OR 97403, USA
| | - Matthew D Hammers
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, OR 97403, USA
| | - Mary S Earp
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, OR 97403, USA
| | - Annie K Gilbert
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, OR 97403, USA
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, OR 97403, USA
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55
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Influence of Gut–Liver Axis on Portal Hypertension in Advanced Chronic Liver Disease: The Gut Microbiome as a New Protagonist in Therapeutic Management. MICROBIOLOGY RESEARCH 2022. [DOI: 10.3390/microbiolres13030038] [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
Clinically significant portal hypertension is associated with most complications of advanced chronic liver disease (ACLD), including variceal bleeding, ascites, spontaneous bacterial peritonitis, hepatorenal syndrome, and hepatic encephalopathy. Gut dysbiosis is a hallmark of ACLD with portal hypertension and consists of the overgrowth of potentially pathogenic bacteria and a decrease in autochthonous bacteria; additionally, congestion makes the intestinal barrier more permeable to bacteria and their products, which contributes to the development of complications through inflammatory mechanisms. This review summarizes current knowledge on the role of the gut–liver axis in the pathogenesis of portal hypertension, with a focus on therapies targeting portal hypertension and the gut microbiota. The modulation of the gut microbiota on several levels represents a major challenge in the upcoming years; in-depth characterization of the molecular and microbiological mechanisms linking the gut–liver axis to portal hypertension in a bidirectional relationship could pave the way to the identification of new therapeutic targets for innovative therapies in the management of ACLD.
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56
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Liu J, Tan Y, Cheng H, Zhang D, Feng W, Peng C. Functions of Gut Microbiota Metabolites, Current Status and Future Perspectives. Aging Dis 2022; 13:1106-1126. [PMID: 35855347 PMCID: PMC9286904 DOI: 10.14336/ad.2022.0104] [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: 12/09/2021] [Accepted: 01/04/2022] [Indexed: 12/12/2022] Open
Abstract
Gut microbiota, a collection of microorganisms that live within gastrointestinal tract, provides crucial signaling metabolites for the physiological of hosts. In healthy state, gut microbiota metabolites are helpful for maintaining the basic functions of hosts, whereas disturbed production of these metabolites can lead to numerous diseases such as metabolic diseases, cardiovascular diseases, gastrointestinal diseases, neurodegenerative diseases, and cancer. Although there are many reviews about the specific mechanisms of gut microbiota metabolites on specific diseases, there is no comprehensive summarization of the functions of these metabolites. In this Opinion, we discuss the knowledge of gut microbiota metabolites including the types of gut microbiota metabolites and their ways acting on targets. In addition, we summarize their physiological and pathologic functions in health and diseases, such as shaping the composition of gut microbiota and acting as nutrition. This paper can be helpful for understanding the roles of gut microbiota metabolites and thus provide guidance for developing suitable therapeutic strategies to combat microbial-driven diseases and improve health.
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Affiliation(s)
- Juan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yuzhu Tan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Hao Cheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Dandan Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Wuwen Feng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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57
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Pi X, Yu Z, Yang X, Du Z, Liu W. Effects of Zymosan on Short-Chain Fatty Acid and Gas Production in in vitro Fermentation Models of the Human Intestinal Microbiota. Front Nutr 2022; 9:921137. [PMID: 35859755 PMCID: PMC9291218 DOI: 10.3389/fnut.2022.921137] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/06/2022] [Indexed: 11/27/2022] Open
Abstract
In this study, the effects of zymosan (HG, hydrolyzed glucan) on the structure and metabolism of fecal microbiota in Chinese healthy people was investigated by an in vitro simulated intestinal microecology fermentation model. We found that HG significantly regulated fecal microbiota composition, including the increase of Bifidobacterium, Faecalibacterium, Prevotella and the decrease of Escherichia-Shigella. Moreover, HG significantly increased the total production of short chain fatty acids (SCFAs) and gases, in which the production of Acetic acid, Propionic acid, CO2, and H2 significantly increased while the production of Isovaleric acid and NH3 significantly decreased. Additionally, the supplement of HG showed certain differences in the regulation of microbiota from four groups. HG significantly increased the relative abundance of Bifidobacterium and significantly decreased the relative abundance of Escherichia-Shigella excluding the older men group. Meanwhile, and the relative abundance of Lactobacillus was significantly increased in young populations. And the relative abundance of Bacteroides was significantly decreased only in the young women. Furthermore, HG significantly increased H2 concentration only in older men. These findings suggest that HG, as a new generation of prebiotics, could regulate the structure of fecal microbiota and its metabolites in a better direction, but when HG participates in precision nutrition formula, it may be necessary to consider the differences in the utilization of different populations.
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Affiliation(s)
- Xionge Pi
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zaichun Yu
- College of Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Xiaoxia Yang
- College of Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhi Du
- Department of Pharmacy, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Wei Liu
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- *Correspondence: Wei Liu
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58
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Zhao Y, Zhao G. Decreasing ruminal methane production through enhancing the sulfate reduction pathway. ANIMAL NUTRITION 2022; 9:320-326. [PMID: 35600554 PMCID: PMC9097629 DOI: 10.1016/j.aninu.2022.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/28/2021] [Accepted: 01/25/2022] [Indexed: 11/17/2022]
Abstract
Methane (CH4) production from ruminants accounts for 16% of the global greenhouse gas emissions and represents 2% to 12% of feed energy. Mitigating CH4 production from ruminants is of great importance for sustainable development of the ruminant industry. H2 is the primary substrate for CH4 production in the processes of ruminal methanogenesis. Sulfate reducing bacteria are able to compete with methanogens for H2 in the rumen, and consequently inhibit the methanogenesis. Enhancing the ruminal sulfate reducing pathway is an important approach to mitigate CH4 emissions in ruminants. The review summarized the effects of sulfate and elemental S on ruminal methanogenesis, and clarified the related mechanisms through the impacts of sulfate and elemental S on major ruminal sulfate reducing bacteria. Enhancing the activities of the major ruminal sulfate reducing bacteria including Desulfovibrio, Desulfohalobium and Sulfolobus through dietary sulfate addition, elemental S and dried distillers grains with solubles can effectively decrease the ruminal CH4 emissions. Suitable levels of dietary addition with different S sources for reducing the ruminal CH4 production, as well as maintaining the performance and health of ruminants, need to be investigated in the future.
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59
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Relationship between gut microbiota and colorectal cancer: Probiotics as a potential strategy for prevention. Food Res Int 2022; 156:111327. [DOI: 10.1016/j.foodres.2022.111327] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 12/15/2022]
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Singh SB, Coffman CN, Varga MG, Carroll-Portillo A, Braun CA, Lin HC. Intestinal Alkaline Phosphatase Prevents Sulfate Reducing Bacteria-Induced Increased Tight Junction Permeability by Inhibiting Snail Pathway. Front Cell Infect Microbiol 2022; 12:882498. [PMID: 35694541 PMCID: PMC9177943 DOI: 10.3389/fcimb.2022.882498] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Tight junctions (TJs) are essential components of intestinal barrier integrity and protect the epithelium against passive paracellular flux and microbial translocation. Dysfunctional TJ leads to leaky gut, a condition associated with diseases including inflammatory bowel disease (IBD). Sulfate-Reducing Bacteria (SRB) are minor residents of the gut. An increased number of Desulfovibrio, the most predominant SRB, is observed in IBD and other diseases associated with leaky gut. However, it is not known whether Desulfovibrio contributes to leaky gut. We tested the hypothesis that Desulfovibrio vulgaris (DSV) may induce intestinal permeability in vitro. Snail, a transcription factor, disrupts barrier function by affecting TJ proteins such as occludin. Intestinal alkaline phosphatase (IAP), a host defense protein, protects epithelial barrier integrity. We tested whether DSV induced permeability in polarized Caco-2 cells via snail and if this effect was inhibited by IAP. Barrier integrity was assessed by measuring transepithelial electric resistance (TEER) and by 4kDa FITC-Dextran flux to determine paracellular permeability. We found that DSV reduced TEER, increased FITC-flux, upregulated snail protein expression, caused nuclear translocation of snail, and disrupted occludin staining at the junctions. DSV-induced permeability effects were inhibited in cells knocked down for snail. Pre-treatment of cells with IAP inhibited DSV-induced FITC flux and snail expression and DSV-mediated disruption of occludin staining. These data show that DSV, a resident commensal bacterium, can contribute to leaky gut and that snail may serve as a novel therapeutic target to mitigate DSV-induced effects. Taken together, our study suggests a novel underlying mechanism of association of Desulfovibrio bloom with diseases with increased intestinal permeability. Our study also underscores IAP as a novel therapeutic intervention for correcting SRB-induced leaky gut via inhibition of snail.
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Affiliation(s)
- Sudha B. Singh
- Biomedical Research Institute of New Mexico, New Mexico Veterans Affairs (VA) Health Care System, Albuquerque, NM, United States
| | - Cristina N. Coffman
- Biomedical Research Institute of New Mexico, New Mexico Veterans Affairs (VA) Health Care System, Albuquerque, NM, United States
| | - Matthew G. Varga
- Biomedical Research Institute of New Mexico, New Mexico Veterans Affairs (VA) Health Care System, Albuquerque, NM, United States
| | - Amanda Carroll-Portillo
- Division of Gastroenterology and Hepatology, Department of Medicine, University of New Mexico, Albuquerque, NM, United States
| | - Cody A. Braun
- Biomedical Research Institute of New Mexico, New Mexico Veterans Affairs (VA) Health Care System, Albuquerque, NM, United States
| | - Henry C. Lin
- Division of Gastroenterology and Hepatology, Department of Medicine, University of New Mexico, Albuquerque, NM, United States
- Medicine Service, New Mexico Veterans Affairs (VA) Health Care System, Albuquerque, NM, United States
- *Correspondence: Henry C. Lin,
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61
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Gill PA, Inniss S, Kumagai T, Rahman FZ, Smith AM. The Role of Diet and Gut Microbiota in Regulating Gastrointestinal and Inflammatory Disease. Front Immunol 2022; 13:866059. [PMID: 35450067 PMCID: PMC9016115 DOI: 10.3389/fimmu.2022.866059] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/14/2022] [Indexed: 12/20/2022] Open
Abstract
Diet is an important lifestyle factor that is known to contribute in the development of human disease. It is well established that poor diet plays an active role in exacerbating metabolic diseases, such as obesity, diabetes and hypertension. Our understanding of how the immune system drives chronic inflammation and disease pathogenesis has evolved in recent years. However, the contribution of dietary factors to inflammatory conditions such as inflammatory bowel disease, multiple sclerosis and arthritis remain poorly defined. A western diet has been associated as pro-inflammatory, in contrast to traditional dietary patterns that are associated as being anti-inflammatory. This may be due to direct effects of nutrients on immune cell function. Diet may also affect the composition and function of gut microbiota, which consequently affects immunity. In animal models of inflammatory disease, diet may modulate inflammation in the gastrointestinal tract and in other peripheral sites. Despite limitations of animal models, there is now emerging evidence to show that anti-inflammatory effects of diet may translate to human gastrointestinal and inflammatory diseases. However, appropriately designed, larger clinical studies must be conducted to confirm the therapeutic benefit of dietary therapy.
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Affiliation(s)
- Paul A Gill
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Saskia Inniss
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Tomoko Kumagai
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Farooq Z Rahman
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom.,Department of Gastroenterology, University College London Hospitals National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Andrew M Smith
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
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62
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Maiti BK. Cross‐talk Between (Hydrogen)Sulfite and Metalloproteins: Impact on Human Health. Chemistry 2022; 28:e202104342. [DOI: 10.1002/chem.202104342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Indexed: 12/28/2022]
Affiliation(s)
- Biplab K Maiti
- Department of Chemistry National Institute of Technology Sikkim, Ravangla Campus Barfung Block, Ravangla Sub Division South Sikkim 737139 India
- Department of Chemistry Cluster University of Jammu Canal Road Jammu 180001
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63
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Ni’matuzahroh, Affandi M, Fatimah, Trikurniadewi N, Khiftiyah AM, Sari SK, Abidin AZ, Ibrahim SNMM. Comparative study of gut microbiota from decomposer fauna in household composter using metataxonomic approach. Arch Microbiol 2022; 204:210. [DOI: 10.1007/s00203-022-02785-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 01/26/2022] [Accepted: 01/31/2022] [Indexed: 12/20/2022]
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64
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Murros KE. Hydrogen Sulfide Produced by Gut Bacteria May Induce Parkinson's Disease. Cells 2022; 11:978. [PMID: 35326429 PMCID: PMC8946538 DOI: 10.3390/cells11060978] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/01/2022] [Accepted: 03/10/2022] [Indexed: 12/24/2022] Open
Abstract
Several bacterial species can generate hydrogen sulfide (H2S). Study evidence favors the view that the microbiome of the colon harbors increased amounts of H2S producing bacteria in Parkinson's disease. Additionally, H2S can easily penetrate cell membranes and enter the cell interior. In the cells, excessive amounts of H2S can potentially release cytochrome c protein from the mitochondria, increase the iron content of the cytosolic iron pool, and increase the amount of reactive oxygen species. These events can lead to the formation of alpha-synuclein oligomers and fibrils in cells containing the alpha-synuclein protein. In addition, bacterially produced H2S can interfere with the body urate metabolism and affect the blood erythrocytes and lymphocytes. Gut bacteria responsible for increased H2S production, especially the mucus-associated species of the bacterial genera belonging to the Desulfovibrionaceae and Enterobacteriaceae families, are likely play a role in the pathogenesis of Parkinson's disease. Special attention should be devoted to changes not only in the colonic but also in the duodenal microbiome composition with regard to the pathogenesis of Parkinson's disease. Influenza infections may increase the risk of Parkinson's disease by causing the overgrowth of H2S-producing bacteria both in the colon and duodenum.
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Affiliation(s)
- Kari Erik Murros
- Institute of Clinical Medicine, University of Eastern Finland (UEF), 70211 Kuopio, Finland
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Głowacka U, Magierowska K, Wójcik D, Hankus J, Szetela M, Cieszkowski J, Korbut E, Danielak A, Surmiak M, Chmura A, Wallace JL, Magierowski M. Microbiome Profile and Molecular Pathways Alterations in Gastrointestinal Tract by Hydrogen Sulfide-Releasing Nonsteroidal Anti-Inflammatory Drug (ATB-352): Insight into Possible Safer Polypharmacy. Antioxid Redox Signal 2022; 36:189-210. [PMID: 33678013 DOI: 10.1089/ars.2020.8240] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Aims: Nonsteroidal anti-inflammatory drugs, including ketoprofen, induce adverse effects within the gastrointestinal (GI)-tract. Hydrogen sulfide (H2S) is an antioxidative gaseous mediator contributing to GI-protection. We aimed to evaluate the GI safety of a novel H2S-releasing derivative of ketoprofen (ATB-352) versus classic ketoprofen and the molecular mechanisms of their activity after chronic treatment in experimental animal models. Results: Ketoprofen (10 mg/kg/day) administered intragastrically for 7 days in contrast with ATB-352 (14 mg/kg/day) reduced mucosal H2S content inducing GI damage with significantly increased injury score, altered intestinal microbiome profile, and modulation of more than 50% of 36 investigated molecular sensors (e.g., mammalian target of rapamycin or suppressor of cytokine signaling 3 [SOCS3]). Polypharmacy with aspirin (10 mg/kg/day) enhanced ketoprofen toxicity not affecting GI safety of ATB-352. Omeprazole (20 mg/kg/day) decreased ketoprofen-induced injury to the level of ATB-352 alone. Both compounds combined or not with aspirin or omeprazole maintained the ability to inhibit cyclooxygenase (COX) activity manifested by decreased prostaglandin production. Innovation and Conclusions: Ketoprofen-induced H2S-production decrease and intestinal microbiome profile alterations lead to GI toxicity observed on macro-/microscopic and molecular levels. Ketoprofen but not ATB-352 requires concomitant treatment with omeprazole to eliminate GI adverse effects. ATB-352 applied alone or in a polypharmacy setting with aspirin effectively inhibited COX and maintained GI safety due to H2S-release. Neither compound affected DNA oxidation in the GI mucosa, but ATB-352 had lower impact on molecular oxidative/inflammatory response pathways and intestinal microbiome. The GI safety of ATB-352 could be due to the involvement of heme oxygenase 1 and SOCS3 pathway activation. Antioxid. Redox Signal. 36, 189-210.
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Affiliation(s)
- Urszula Głowacka
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
| | | | - Dagmara Wójcik
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
| | - Jerzy Hankus
- Department of Pathomorphology, Jagiellonian University Medical College, Cracow, Poland
| | - Małgorzata Szetela
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
| | - Jakub Cieszkowski
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
| | - Edyta Korbut
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
| | - Aleksandra Danielak
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
| | - Marcin Surmiak
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland.,Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Anna Chmura
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
| | - John L Wallace
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Canada
| | - Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, Cracow, Poland
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66
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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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67
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Kumbhare SV, Francis-Lyon PA, Kachru D, Uday T, Irudayanathan C, Muthukumar KM, Ricchetti RR, Singh-Rambiritch S, Ugalde J, Dulai PS, Almonacid DE, Sinha R. Digital Therapeutics Care Utilizing Genetic and Gut Microbiome Signals for the Management of Functional Gastrointestinal Disorders: Results From a Preliminary Retrospective Study. Front Microbiol 2022; 13:826916. [PMID: 35391720 PMCID: PMC8983270 DOI: 10.3389/fmicb.2022.826916] [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] [Received: 12/01/2021] [Accepted: 01/28/2022] [Indexed: 12/12/2022] Open
Abstract
Diet and lifestyle-related illnesses including functional gastrointestinal disorders (FGIDs) and obesity are rapidly emerging health issues worldwide. Research has focused on addressing FGIDs via in-person cognitive-behavioral therapies, diet modulation and pharmaceutical intervention. Yet, there is paucity of research reporting on digital therapeutics care delivering weight loss and reduction of FGID symptom severity, and on modeling FGID status and symptom severity reduction including personalized genomic SNPs and gut microbiome signals. Our aim for this study was to assess how effective a digital therapeutics intervention personalized on genomic SNPs and gut microbiome signals was at reducing symptomatology of FGIDs on individuals that successfully lost body weight. We also aimed at modeling FGID status and FGID symptom severity reduction using demographics, genomic SNPs, and gut microbiome variables. This study sought to train a logistic regression model to differentiate the FGID status of subjects enrolled in a digital therapeutics care program using demographic, genetic, and baseline microbiome data. We also trained linear regression models to ascertain changes in FGID symptom severity of subjects at the time of achieving 5% or more of body weight loss compared to baseline. For this we utilized a cohort of 177 adults who reached 5% or more weight loss on the Digbi Health personalized digital care program, who were retrospectively surveyed about changes in symptom severity of their FGIDs and other comorbidities before and after the program. Gut microbiome taxa and demographics were the strongest predictors of FGID status. The digital therapeutics program implemented, reduced the summative severity of symptoms for 89.42% (93/104) of users who reported FGIDs. Reduction in summative FGID symptom severity and IBS symptom severity were best modeled by a mixture of genomic and microbiome predictors, whereas reduction in diarrhea and constipation symptom severity were best modeled by microbiome predictors only. This preliminary retrospective study generated diagnostic models for FGID status as well as therapeutic models for reduction of FGID symptom severity. Moreover, these therapeutic models generate testable hypotheses for associations of a number of biomarkers in the prognosis of FGIDs symptomatology.
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Affiliation(s)
| | - Patricia A. Francis-Lyon
- Digbi Health, Mountain View, CA, United States
- Health Informatics, University of San Francisco, San Francisco, CA, United States
| | - Dashyanng Kachru
- Digbi Health, Mountain View, CA, United States
- Health Informatics, University of San Francisco, San Francisco, CA, United States
| | | | | | | | | | | | - Juan Ugalde
- Universidad del Desarrollo, Facultad de Ingeniería, Centro de Investigación en Tecnologías para la Sociedad (C+), Santiago, Chile
| | - Parambir S. Dulai
- Division of Gastroenterology, University of California, San Diego, San Diego, CA, United States
| | | | - Ranjan Sinha
- Digbi Health, Mountain View, CA, United States
- *Correspondence: Ranjan Sinha,
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68
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Li M, Jiao Y, Duan C. A dual-emission fluorescence-enhanced probe for hydrogen sulfide and its application in biological imaging. NEW J CHEM 2022. [DOI: 10.1039/d2nj01195f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescence-enhanced probe with unique dual-channel emissions was designed for the detection and bioimaging of hydrogen sulfide.
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Affiliation(s)
- Minghao Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Yang Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
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69
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Mao Z, Huang Y, Li B, Tomoya K, Shinmori H, Zeng X, Gu Z, Yao J. Hydrogen sulfide as a potent scavenger of toxicant acrolein. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113111. [PMID: 34952378 DOI: 10.1016/j.ecoenv.2021.113111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/07/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
Acrolein (ACR) is a metabolic byproduct in vivo and a ubiquitous environmental toxicant. It is implicated in the initiation and development of many diseases through multiple mechanisms, including the induction of oxidative stress. Currently, our understanding of the body defense mechanism against ACR toxicity is still limited. Given that hydrogen sulfide (H2S) has strong antioxidative actions and it shares several properties of ACR scavenger glutathione (GSH), we, therefore, tested whether H2S could be involved in ACR detoxification. Taking advantage of two cell lines that produced different levels of endogenous H2S, we found that the severity of ACR toxicity was reversely correlated with H2S-producing ability. In further support of the role of H2S, supplementing cells with exogenous H2S increased cell resistance to ACR, whereas inhibition of endogenous H2S sensitized cells to ACR. In vivo experiments showed that inhibition of endogenous H2S with CSE inhibitor markedly increased mouse susceptibility to the toxicity of cyclophosphamide and ACR, as evidenced by the increased mortality and worsened organ injury. Further analysis revealed that H2S directly reacted with ACR. It promoted ACR clearance and prevented ACR-initiated protein carbonylation. Collectively, this study characterized H2S as a presently unrecognized endogenous scavenger of ACR and suggested that H2S can be exploited to prevent and treat ACR-associated diseases.
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Affiliation(s)
- Zhimin Mao
- Institute of Reproductive Medicine, Nantong University, Nantong, China; Division of Molecular Signaling, Department of the Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Kofu, Japan.
| | - Yanru Huang
- Division of Molecular Signaling, Department of the Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Kofu, Japan
| | - Bingqian Li
- Institute of Reproductive Medicine, Nantong University, Nantong, China
| | - Kazutoshi Tomoya
- Department of Biotechnology, Faculty of Life and Environmental Sciences, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Kofu, Japan
| | - Hideyuki Shinmori
- Department of Biotechnology, Faculty of Life and Environmental Sciences, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Kofu, Japan
| | - Xuhui Zeng
- Institute of Reproductive Medicine, Nantong University, Nantong, China
| | - Zhifeng Gu
- Department of Rheumatology, The Affiliated Hospital of Nantong University, Nantong, China
| | - Jian Yao
- Division of Molecular Signaling, Department of the Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Kofu, Japan.
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70
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Gu Y, Qin X, Zhou G, Wang C, Mu C, Liu X, Zhong W, Xu X, Wang B, Jiang K, Liu J, Cao H. Lactobacillus rhamnosus GG supernatant promotes intestinal mucin production through regulating 5-HT4R and gut microbiota. Food Funct 2022; 13:12144-12155. [DOI: 10.1039/d2fo01900k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
LGGs promoted intestinal MUC2 production through regulating S100A10/5-HT4R and the gut microbiota.
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Affiliation(s)
- Yu Gu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Xiali Qin
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Guoqiong Zhou
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Chen Wang
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Chenlu Mu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Xiang Liu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Weilong Zhong
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Xin Xu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Kui Jiang
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Jinghua Liu
- Department of Gastroenterology and Hepatology, Tianjin TEDA Hospital, Tianjin 300457, China
| | - Hailong Cao
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin 300052, China
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Gut Microbial Metabolite-Mediated Regulation of the Intestinal Barrier in the Pathogenesis of Inflammatory Bowel Disease. Nutrients 2021; 13:nu13124259. [PMID: 34959809 PMCID: PMC8704337 DOI: 10.3390/nu13124259] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/20/2021] [Accepted: 11/25/2021] [Indexed: 12/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease. The disease has a multifactorial aetiology, involving genetic, microbial as well as environmental factors. The disease pathogenesis operates at the host-microbe interface in the gut. The intestinal epithelium plays a central role in IBD disease pathogenesis. Apart from being a physical barrier, the epithelium acts as a node that integrates environmental, dietary, and microbial cues to calibrate host immune response and maintain homeostasis in the gut. IBD patients display microbial dysbiosis in the gut, combined with an increased barrier permeability that contributes to disease pathogenesis. Metabolites produced by microbes in the gut are dynamic indicators of diet, host, and microbial interplay in the gut. Microbial metabolites are actively absorbed or diffused across the intestinal lining to affect the host response in the intestine as well as at systemic sites via the engagement of cognate receptors. In this review, we summarize insights from metabolomics studies, uncovering the dynamic changes in gut metabolite profiles in IBD and their importance as potential diagnostic and prognostic biomarkers of disease. We focus on gut microbial metabolites as key regulators of the intestinal barrier and their role in the pathogenesis of IBD.
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72
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Mitchell EJ, Beecroft AJ, Martin J, Thompson S, Marques I, Félix V, Beer PD. Hydrosulfide (HS - ) Recognition and Sensing in Water by Halogen Bonding Hosts. Angew Chem Int Ed Engl 2021; 60:24048-24053. [PMID: 34494708 PMCID: PMC8596634 DOI: 10.1002/anie.202110442] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/03/2021] [Indexed: 11/16/2022]
Abstract
Hydrogen sulfide (H2 S) plays a crucial signalling role in a variety of physiological systems, existing as the hydrosulfide anion (HS- ) at physiological pH. Combining the potency of halogen bonding (XB) for anion recognition in water with coumarin fluorophore incorporation in acyclic host structural design, the first XB receptors to bind and, more importantly, sense the hydrosulfide anion in pure water in a reversible chemosensing fashion are demonstrated. The XB receptors exhibit characteristic selective quenching of fluorescence upon binding to HS- . Computational DFT and molecular dynamics simulations in water corroborate the experimental anion binding observations, revealing the mode and nature of HS- recognition by the XB receptors.
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Affiliation(s)
- Edward J. Mitchell
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Adam J. Beecroft
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Jonathan Martin
- Radioactive Waste ManagementBuilding 329, Thomson Avenue, Harwell CampusDidcotOX11 0GDUK
| | - Sally Thompson
- Radioactive Waste ManagementBuilding 329, Thomson Avenue, Harwell CampusDidcotOX11 0GDUK
| | - Igor Marques
- CICECO—Aveiro Institute of MaterialsDepartment of ChemistryUniversity of Aveiro3810-193AveiroPortugal
| | - Vítor Félix
- CICECO—Aveiro Institute of MaterialsDepartment of ChemistryUniversity of Aveiro3810-193AveiroPortugal
| | - Paul D. Beer
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
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73
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Li Y, Qin J, Cheng Y, Lv D, Li M, Qi Y, Lan J, Zhao Q, Li Z. Marine Sulfated Polysaccharides: Preventive and Therapeutic Effects on Metabolic Syndrome: A Review. Mar Drugs 2021; 19:md19110608. [PMID: 34822479 PMCID: PMC8618309 DOI: 10.3390/md19110608] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 02/07/2023] Open
Abstract
Metabolic syndrome is the pathological basis of cardiovascular and cerebrovascular diseases and type 2 diabetes. With the prevalence of modern lifestyles, the incidence of metabolic syndrome has risen rapidly. In recent years, marine sulfate polysaccharides (MSPs) have shown positive effects in the prevention and treatment of metabolic syndrome, and they mainly come from seaweeds and marine animals. MSPs are rich in sulfate and have stronger biological activity compared with terrestrial polysaccharides. MSPs can alleviate metabolic syndrome by regulating glucose metabolism and lipid metabolism. In addition, MSPs prevent and treat metabolic syndrome by interacting with gut microbiota. MSPs can be degraded by gut microbes to produce metabolites such as short chain fatty acids (SCFAs) and free sulfate and affect the composition of gut microbiota. The difference between MSPs and other polysaccharides lies in the sulfation pattern and sulfate content, therefore, which is very important for anti-metabolic syndrome activity of MSPs. This review summarizes the latest findings on effects of MSPs on metabolic syndrome, mechanisms of MSPs in treatment/prevention of metabolic syndrome, interactions between MSPs and gut microbiota, and the role of sulfate group and sulfation pattern in MSPs activity. However, more clinical trials are needed to confirm the potential preventive and therapeutic effects on human body. It may be a better choice to develop new functional foods containing MSPs for dietary intervention in metabolic syndrome.
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Affiliation(s)
- Ying Li
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
- Dalian Key Laboratory of Marine Bioactive Substances Development and High Value Utilization, Dalian 116023, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
- Liaoning Provincial Aquatic Products Analyzing, Testing and Processing Technology Scientific Service Centre, Dalian 116023, China
| | - Juan Qin
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
| | - Yinghui Cheng
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
| | - Dong Lv
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
- Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, China
| | - Meng Li
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
- Dalian Key Laboratory of Marine Bioactive Substances Development and High Value Utilization, Dalian 116023, China
- Liaoning Provincial Aquatic Products Analyzing, Testing and Processing Technology Scientific Service Centre, Dalian 116023, China
| | - Yanxia Qi
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
- Dalian Key Laboratory of Marine Bioactive Substances Development and High Value Utilization, Dalian 116023, China
- Liaoning Provincial Aquatic Products Analyzing, Testing and Processing Technology Scientific Service Centre, Dalian 116023, China
| | - Jing Lan
- Dalian Zhenjiu Biological Industry Co., Ltd., Dalian 116023, China;
| | - Qiancheng Zhao
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
- Dalian Key Laboratory of Marine Bioactive Substances Development and High Value Utilization, Dalian 116023, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
- Correspondence: (Q.Z.); (Z.L.); Tel.: +86-411-84673500 (Q.Z.); +86-411-84763107 (Z.L.)
| | - Zhibo Li
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; (Y.L.); (J.Q.); (Y.C.); (D.L.); (M.L.); (Y.Q.)
- Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, China
- Correspondence: (Q.Z.); (Z.L.); Tel.: +86-411-84673500 (Q.Z.); +86-411-84763107 (Z.L.)
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74
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Mitchell EJ, Beecroft AJ, Martin J, Thompson S, Marques I, Félix V, Beer PD. Hydrosulfide (HS
−
) Recognition and Sensing in Water by Halogen Bonding Hosts. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Edward J. Mitchell
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | - Adam J. Beecroft
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | - Jonathan Martin
- Radioactive Waste Management Building 329, Thomson Avenue, Harwell Campus Didcot OX11 0GD UK
| | - Sally Thompson
- Radioactive Waste Management Building 329, Thomson Avenue, Harwell Campus Didcot OX11 0GD UK
| | - Igor Marques
- CICECO—Aveiro Institute of Materials Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | - Vítor Félix
- CICECO—Aveiro Institute of Materials Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | - Paul D. Beer
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
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75
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Mendiola PJ, Naik JS, Gonzalez Bosc LV, Gardiner AS, Birg A, Kanagy NL. Hydrogen Sulfide Actions in the Vasculature. Compr Physiol 2021; 11:2467-2488. [PMID: 34558672 DOI: 10.1002/cphy.c200036] [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] [Indexed: 11/07/2022]
Abstract
Hydrogen sulfide (H2 S) is a small, gaseous molecule with poor solubility in water that is generated by multiple pathways in many species including humans. It acts as a signaling molecule in many tissues with both beneficial and pathological effects. This article discusses its many actions in the vascular system and the growing evidence of its role to regulate vascular tone, angiogenesis, endothelial barrier function, redox, and inflammation. Alterations in some disease states are also discussed including potential roles in promoting tumor growth and contributions to the development of metabolic disease. © 2021 American Physiological Society. Compr Physiol 11:1-22, 2021.
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Affiliation(s)
| | - Jay S Naik
- University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | | | - Amy S Gardiner
- University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Aleksandr Birg
- University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Nancy L Kanagy
- University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
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76
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Donertas Ayaz B, Oliveira AC, Malphurs WL, Redler T, de Araujo AM, Sharma RK, Sirmagul B, Zubcevic J. Central Administration of Hydrogen Sulfide Donor NaHS Reduces Iba1-Positive Cells in the PVN and Attenuates Rodent Angiotensin II Hypertension. Front Neurosci 2021; 15:690919. [PMID: 34602965 PMCID: PMC8479468 DOI: 10.3389/fnins.2021.690919] [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: 04/04/2021] [Accepted: 08/10/2021] [Indexed: 12/21/2022] Open
Abstract
Hydrogen sulfide (H2S) is a gaseous signaling molecule with neuromodulatory, anti-inflammatory, and anti-hypertensive effects. Here, we investigate whether chronic intracerebroventricular (ICV) infusion of sodium hydrosulfide (NaHS), an H2S donor, can alleviate angiotensin II (Ang II)-induced hypertension (HTN), improve autonomic function, and impact microglia in the paraventricular nucleus (PVN) of the hypothalamus, a brain region associated with autonomic control of blood pressure (BP) and neuroinflammation in HTN. Chronic delivery of Ang II (200 ng/kg/min, subcutaneous) for 4 weeks produced a typical increase in BP and sympathetic drive and elevated the number of ionized calcium binding adaptor molecule 1-positive (Iba1+) cells in the PVN of male, Sprague-Dawley rats. ICV co-infusion of NaHS (at 30 and/or 60 nmol/h) significantly attenuated these effects of Ang II. Ang II also increased the abundance of cecal Deltaproteobacteria and Desulfovibrionales, among others, which was prevented by ICV NaHS co-infusion at 30 and 60 nmol/h. We observed no differences in circulating H2S between the groups. Our results suggest that central H2S may alleviate rodent HTN independently from circulating H2S via effects on autonomic nervous system and PVN microglia.
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Affiliation(s)
- Basak Donertas Ayaz
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
- Department of Pharmacology, College of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Aline C. Oliveira
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, United States
| | - Wendi L. Malphurs
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Ty Redler
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Alan Moreira de Araujo
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Ravindra K. Sharma
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, United States
| | - Basar Sirmagul
- Department of Pharmacology, College of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Jasenka Zubcevic
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
- Department of Physiology and Pharmacology, Center for Hypertension and Precision Medicine, College of Medicine, University of Toledo, Toledo, OH, United States
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77
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Wei L, Singh R, Ro S, Ghoshal UC. Gut microbiota dysbiosis in functional gastrointestinal disorders: Underpinning the symptoms and pathophysiology. JGH Open 2021; 5:976-987. [PMID: 34584964 PMCID: PMC8454481 DOI: 10.1002/jgh3.12528] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023]
Abstract
Functional gastrointestinal disorders (FGIDs), currently known as disorders of gut-brain interaction, are emerging microbiota-gut-brain abnormalities that are prevalent worldwide. The pathogenesis of FGIDs is heterogeneous and is intertwined with gut microbiota and its derived molecule-modulated mechanisms, including gut dysmotility, visceral hypersensitivity, gut immune abnormalities, abnormal secretion, and impaired barrier function. There has been phenomenal progress in understanding the role of gut microbiota in FGIDs by underpinning the species alternations between healthy and pathological conditions such as FGIDs. However, the precise gut microbiota-directed cellular and molecular pathogeneses of FGIDs are yet enigmatic. Determining the mechanistic link between the gut microbiota and gastrointestinal (GI) diseases has been difficult due to (i) the lack of robust animal models imitating the various aspects of human FGID pathophysiology; (ii) the absence of longitudinal human and/or animal studies to unveil the interaction of the gut microbiota with FGID-relevant pathogenesis; (iii) uncertainty about connections between human and animal studies; and (iv) insufficient data supporting a holistic view of disease-specific pathophysiological changes in FGID patients. These unidentified gaps open possibilities to explore pathological mechanisms directed through gut microbiota dysbiosis in FGIDs. The current treatment options for dysbiotic gut microbiota are limited; dietary interventions, antibiotics, probiotics, and fecal microbiota transplantation are the front-line clinical options. Here, we review the contribution of gut microbiota and its derived molecules in gut homeostasis and explore the possible pathophysiological mechanisms involved in FGIDs leading to potential therapeutics options.
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Affiliation(s)
- Lai Wei
- Department of Physiology and Cell BiologyUniversity of Nevada, Reno, School of MedicineRenoNevadaUSA
| | - Rajan Singh
- Department of Physiology and Cell BiologyUniversity of Nevada, Reno, School of MedicineRenoNevadaUSA
| | - Seungil Ro
- Department of Physiology and Cell BiologyUniversity of Nevada, Reno, School of MedicineRenoNevadaUSA
| | - Uday C Ghoshal
- Department of GastroenterologySanjay Gandhi Postgraduate Institute of Medical SciencesLucknowIndia
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78
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Singh SB, Coffman CN, Carroll-Portillo A, Varga MG, Lin HC. Notch Signaling Pathway Is Activated by Sulfate Reducing Bacteria. Front Cell Infect Microbiol 2021; 11:695299. [PMID: 34336718 PMCID: PMC8319767 DOI: 10.3389/fcimb.2021.695299] [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: 04/14/2021] [Accepted: 06/28/2021] [Indexed: 12/05/2022] Open
Abstract
Sulfate Reducing Bacteria (SRB), usually rare residents of the gut, are often found in increased numbers (called a SRB bloom) in inflammatory conditions such as Inflammatory Bowel Disease (IBD), pouchitis, and periodontitis. However, the underlying mechanisms of this association remain largely unknown. Notch signaling, a conserved cell-cell communication pathway, is usually involved in tissue development and differentiation. Dysregulated Notch signaling is observed in inflammatory conditions such as IBD. Lipolysaccharide and pathogens also activate Notch pathway in macrophages. In this study, we tested whether Desulfovibrio, the most dominant SRB genus in the gut, may activate Notch signaling. RAW 264.7 macrophages were infected with Desulfovibrio vulgaris (DSV) and analyzed for the expression of Notch signaling pathway-related proteins. We found that DSV induced protein expression of Notch1 receptor, Notch intracellular domain (NICD) and p21, a downstream Notch target, in a dose-and time-dependent manner. DSV also induced the expression of pro-IL1β, a precursor of IL-1β, and SOCS3, a regulator of cytokine signaling. The gamma secretase inhibitor DAPT or Notch siRNA dampened DSV-induced Notch-related protein expression as well the expression of pro-IL1β and SOCS3. Induction of Notch-related proteins by DSV was not affected by TLR4 -IN -C34(C34), a TLR4 receptor antagonist. Additionally, cell-free supernatant of DSV-infected macrophages induced NICD expression in uninfected macrophages. DSV also activated Notch pathway in the human epithelial cell line HCT116 and in mouse small intestine. Thus, our study uncovers a novel mechanism by which SRB interact with host cells by activating Notch signaling pathway. Our study lays a framework for examining whether the Notch pathway induced by SRB contributes to inflammation in conditions associated with SRB bloom and whether it can be targeted as a therapeutic approach to treat these conditions.
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Affiliation(s)
- Sudha B Singh
- Biomedical Research Institute of New Mexico, New Mexico VA Health Care System, Albuquerque, NM, United States
| | - Cristina N Coffman
- Biomedical Research Institute of New Mexico, New Mexico VA Health Care System, Albuquerque, NM, United States
| | - Amanda Carroll-Portillo
- Division of Gastroenterology and Hepatology, Department of Medicine, University of New Mexico, Albuquerque, NM, United States
| | - Matthew G Varga
- Biomedical Research Institute of New Mexico, New Mexico VA Health Care System, Albuquerque, NM, United States
| | - Henry C Lin
- Division of Gastroenterology and Hepatology, Department of Medicine, University of New Mexico, Albuquerque, NM, United States.,Medicine Service, New Mexico VA Health Care System, Albuquerque, NM, United States
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79
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Walker A, Schmitt-Kopplin P. The role of fecal sulfur metabolome in inflammatory bowel diseases. Int J Med Microbiol 2021; 311:151513. [PMID: 34147944 DOI: 10.1016/j.ijmm.2021.151513] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 04/22/2021] [Accepted: 05/17/2021] [Indexed: 12/17/2022] Open
Abstract
Sulfur metabolism and sulfur-containing metabolites play an important role in the human digestive system, and sulfur compounds and pathways are associated with inflammatory bowel diseases (IBD). In fact, cysteine metabolism results in the production of taurine and sulfate, and gut microbes catabolize them into hydrogen sulfide, a signaling molecule with various biological functions. Besides metabolites originating from sulfur metabolism, several other sulfur-containing metabolites of different classes were detected in human feces, consisting of non-volatile and volatile compounds. Sulfated steroids and bile acids such as taurine-conjugated bile acids are the major classes along with sulfur amino acids and sulfur-containing peptides. Indeed, sulfur-containing metabolites were described in stool samples from healthy subjects, patients suffering from colorectal cancer or IBD. In metabolomics-driven studies, around 50 known sulfur-containing metabolites were linked to IBD. Taurine, taurocholic acid, taurochenodeoxycholic acid, methionine, methanethiol and hydrogen sulfide were regularly reported in IBD studies, and most of them were elevated in stool samples from IBD patients. We summarized from this review that there is strong interplay between perturbed gut microbiota in IBD, and the consistently higher abundance of sulfur-containing metabolites, which potentially represent substrates for sulfidogenic bacteria such as Bilophila or Escherichia and promote their growth. These bacteria might shift their metabolism towards the degradation of taurine and cysteine and therefore to a higher hydrogen sulfide production.
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Affiliation(s)
- Alesia Walker
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Neuherberg, Germany.
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Neuherberg, Germany; ZIEL Institute for Food and Health, Technical University of Munich, Freising, Germany; Chair of Analytical Food Chemistry, Technical University of Munich, Freising, Germany
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80
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Rose P, Moore PK, Whiteman M, Kirk C, Zhu YZ. Diet and Hydrogen Sulfide Production in Mammals. Antioxid Redox Signal 2021; 34:1378-1393. [PMID: 33372834 DOI: 10.1089/ars.2020.8217] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: In recent times, it has emerged that some dietary sulfur compounds can act on mammalian cell signaling systems via their propensity to release hydrogen sulfide (H2S). H2S plays important biochemical and physiological roles in the heart, gastrointestinal tract, brain, kidney, and immune systems of mammals. Reduced levels of H2S in cells and tissues correlate with a spectrum of pathophysiological conditions, including heart disease, diabetes, obesity, and altered immune function. Recent Advances: In the last decade, researchers have now begun to explore the mechanisms by which dietary-derived sulfur compounds, in addition to cysteine, can act as sources of H2S. This research has led to the identified several compounds, organic sulfides, isothiocyanates, and inorganic sulfur species including sulfate that can act as potential sources of H2S in mammalian cells and tissues. Critical Issues: We have summarised progress made in the identification of dietary factors that can impact on endogenous H2S levels in mammals. We also describe current research focused on how some sulfur molecules present in dietary plants, and associated chemical analogues, act as sources of H2S, and discuss the biological properties of these molecules as studied in a range of in vitro and in vivo systems. Future Directions: The identification of sulfur compounds in edible plants that can act as novel H2S releasing molecules is intriguing. Research in this area could inform future studies exploring the impact of diet on H2S levels in mammalian systems. Despite recent progress, additional work is needed to determine the mechanisms by which H2S is released from these molecules following ingestions of dietary plants in humans, whether the amounts of H2S produced is of physiological significance following the metabolism of these compounds in vivo, and if diet could be used to manipulated H2S levels in humans. Importantly, this will lead to a better understanding of the biological significance of H2S generated from dietary sources, and this information could be used in the development of plant breeding initiatives to increase the levels of H2S releasing sulfur compounds in crops, or inform dietary intervention strategies that could be used to alter the levels of H2S in humans.
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Affiliation(s)
- Peter Rose
- School of Biosciences, University of Nottingham, Loughborough, Leicestershire, United Kingdom.,State Key Laboratory of Quality Research in Chinese Medicine, School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Philip Keith Moore
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Matthew Whiteman
- College of Medicine and Health, University of Exeter Medical School, Exeter, United Kingdom
| | - Charlotte Kirk
- School of Biosciences, University of Nottingham, Loughborough, Leicestershire, United Kingdom
| | - Yi-Zhun Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, School of Pharmacy, Macau University of Science and Technology, Macau, China
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81
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Shevlyakov A, Nikogosov D, Stewart LA, Toribio-Mateas M. Reference values for intake of six types of soluble and insoluble fibre in healthy UK inhabitants based on the UK Biobank data. Public Health Nutr 2021; 25:1-15. [PMID: 34105446 PMCID: PMC9993053 DOI: 10.1017/s1368980021002524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 05/07/2021] [Accepted: 05/31/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To obtain a set of reference values for the intake of different types of dietary fibre in a healthy UK population. DESIGN This descriptive cross-sectional study used the UK Biobank data to estimate the dietary patterns of healthy individuals. Data on fibre content in different foods were used to calculate the reference values which were then calibrated using real-world data on total fibre intake. SETTING UK Biobank is a prospective cohort study of over 500 000 individuals from across the United Kingdom with the participants aged between 40 and 69 years. PARTICIPANTS UK Biobank contains information on over 500 000 participants. This study was performed using the data on 19 990 individuals (6941 men, 13 049 women) who passed stringent quality control and filtering procedures and had reported above-zero intake of the analysed foods. RESULTS A set of reference values for the intake of six different types of soluble and insoluble fibres (cellulose, hemicelluloses, pectin and lignin), including the corresponding totals, was developed and calibrated using real-world data. CONCLUSIONS To our knowledge, this is the first study to establish specific reference values for the intake of different types of dietary fibre. It is well known that effects exerted by different types of fibre both directly and through modulation of microbiota are numerous. Conceivably, a deficit or excess intake of specific types of dietary fibre may detrimentally affect human health. Filling this knowledge gap opens new avenues for research in discussion in studies of nutrition and microbiota and offers valuable tools for practitioners worldwide.
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Affiliation(s)
- Artem Shevlyakov
- Atlas Biomed Group Limited, Tower Bridge House, St. Katharines Way, LondonE1W 1DD, UK
| | - Dimitri Nikogosov
- Atlas Biomed Group Limited, Tower Bridge House, St. Katharines Way, LondonE1W 1DD, UK
| | - Leigh-Ann Stewart
- Atlas Biomed Group Limited, Tower Bridge House, St. Katharines Way, LondonE1W 1DD, UK
- School of Health and Education, Middlesex University, The Burroughs, London, UK
| | - Miguel Toribio-Mateas
- Atlas Biomed Group Limited, Tower Bridge House, St. Katharines Way, LondonE1W 1DD, UK
- School of Health and Education, Middlesex University, The Burroughs, London, UK
- London, School of Applied Sciences, London South Bank University, London, UK
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82
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Padmanabhan N, Kyon HK, Boot A, Lim K, Srivastava S, Chen S, Wu Z, Lee HO, Mukundan VT, Chan C, Chan YK, Xuewen O, Pitt JJ, Isa ZFA, Xing M, Lee MH, Tan ALK, Ting SHW, Luftig MA, Kappei D, Kruger WD, Bian J, Ho YS, Teh M, Rozen SG, Tan P. Highly recurrent CBS epimutations in gastric cancer CpG island methylator phenotypes and inflammation. Genome Biol 2021; 22:167. [PMID: 34074348 PMCID: PMC8170989 DOI: 10.1186/s13059-021-02375-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/06/2021] [Indexed: 02/06/2023] Open
Abstract
Background CIMP (CpG island methylator phenotype) is an epigenetic molecular subtype, observed in multiple malignancies and associated with the epigenetic silencing of tumor suppressors. Currently, for most cancers including gastric cancer (GC), mechanisms underlying CIMP remain poorly understood. We sought to discover molecular contributors to CIMP in GC, by performing global DNA methylation, gene expression, and proteomics profiling across 14 gastric cell lines, followed by similar integrative analysis in 50 GC cell lines and 467 primary GCs. Results We identify the cystathionine beta-synthase enzyme (CBS) as a highly recurrent target of epigenetic silencing in CIMP GC. Likewise, we show that CBS epimutations are significantly associated with CIMP in various other cancers, occurring even in premalignant gastroesophageal conditions and longitudinally linked to clinical persistence. Of note, CRISPR deletion of CBS in normal gastric epithelial cells induces widespread DNA methylation changes that overlap with primary GC CIMP patterns. Reflecting its metabolic role as a gatekeeper interlinking the methionine and homocysteine cycles, CBS loss in vitro also causes reductions in the anti-inflammatory gasotransmitter hydrogen sulfide (H2S), with concomitant increase in NF-κB activity. In a murine genetic model of CBS deficiency, preliminary data indicate upregulated immune-mediated transcriptional signatures in the stomach. Conclusions Our results implicate CBS as a bi-faceted modifier of aberrant DNA methylation and inflammation in GC and highlights H2S donors as a potential new therapy for CBS-silenced lesions. Supplementary Information The online version contains supplementary material available at 10.1186/s13059-021-02375-2.
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Affiliation(s)
- Nisha Padmanabhan
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Huang Kie Kyon
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Arnoud Boot
- Centre for Computational Biology, Duke-NUS Medical School, Singapore, 169857, Singapore
| | - Kevin Lim
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Supriya Srivastava
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
| | - Shuwen Chen
- Bioprocessing Technology Institute, A*STAR, 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Zhiyuan Wu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore
| | - Hyung-Ok Lee
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Vineeth T Mukundan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Charlene Chan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Yarn Kit Chan
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Ong Xuewen
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Jason J Pitt
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Zul Fazreen Adam Isa
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Manjie Xing
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Ming Hui Lee
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Angie Lay Keng Tan
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Shamaine Ho Wei Ting
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore
| | - Micah A Luftig
- Department of Molecular Genetics and Microbiology, Duke Centre for Virology, Duke University School of Medicine, Durham, NC, USA
| | - Dennis Kappei
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore
| | - Warren D Kruger
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Jinsong Bian
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore.,National University of Singapore (Suzhou) Research Institute, Suzhou, 215123, China
| | - Ying Swan Ho
- Bioprocessing Technology Institute, A*STAR, 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Ming Teh
- Department of Pathology, National University of Singapore, Singapore, 119228, Singapore
| | - Steve George Rozen
- Centre for Computational Biology, Duke-NUS Medical School, Singapore, 169857, Singapore
| | - Patrick Tan
- Programme in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8, College road, Singapore, 169857, Singapore. .,Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore. .,Genome Institute of Singapore, Singapore, 138672, Singapore. .,SingHealth/Duke-NUS Institute of Precision Medicine, National Heart Centre Singapore, Singapore, 169856, Singapore. .,Singapore Gastric Cancer Consortium, Singapore, 119074, Singapore. .,Department of Physiology, National University of Singapore, Singapore, 117593, Singapore.
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83
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Abstract
The term "small intestinal bacterial overgrowth" (SIBO) has been used to refer to a disorder resulting from the colonization of the small bowel by an increased number of microorganisms or by the presence of bacteria that are not usual constituents of this part of the gastrointestinal tract. Clinical presentations, often in patients with certain risk factors, can range from a full-blown malabsorption syndrome to such "functional" complaints as bloating and flatulence. SIBO is diagnosed by either culture of a small bowel aspirate or one of several breath tests. Treatment of SIBO entails risk factor modification, correction of nutritional deficiencies, and oral antibiotics.
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Affiliation(s)
- Daniel Bushyhead
- Division of Gastroenterology and Hepatology, Lynda K and David M Underwood Center for Digestive Disorders, Houston Methodist Hospital, 6550 Fannin Street Suite 1201, Houston, TX 77030, USA.
| | - Eamonn M Quigley
- Division of Gastroenterology and Hepatology, Lynda K and David M Underwood Center for Digestive Disorders, Houston Methodist Hospital, 6550 Fannin Street Suite 1201, Houston, TX 77030, USA
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84
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Bakalarz D, Korbut E, Yuan Z, Yu B, Wójcik D, Danielak A, Magierowska K, Kwiecień S, Brzozowski T, Marcinkowska M, Wang B, Magierowski M. Novel Hydrogen Sulfide (H 2S)-Releasing BW-HS-101 and Its Non-H 2S Releasing Derivative in Modulation of Microscopic and Molecular Parameters of Gastric Mucosal Barrier. Int J Mol Sci 2021; 22:5211. [PMID: 34069086 PMCID: PMC8155842 DOI: 10.3390/ijms22105211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 12/19/2022] Open
Abstract
Hydrogen sulfide (H2S) is an endogenously produced molecule with anti-inflammatory and cytoprotective properties. We aimed to investigate for the first time if a novel, esterase-sensitive H2S-prodrug, BW-HS-101 with the ability to release H2S in a controllable manner, prevents gastric mucosa against acetylsalicylic acid-induced gastropathy on microscopic and molecular levels. Wistar rats were pretreated intragastrically with vehicle, BW-HS-101 (0.5-50 μmol/kg) or its analogue without the ability to release H2S, BW-iHS-101 prior to ASA administration (125 mg/kg, intragastrically). BW-HS-101 was administered alone or in combination with nitroarginine (L-NNA, 20 mg/kg, intraperitoneally) or zinc protoporphyrin IX (10 mg/kg, intraperitoneally). Gastroprotective effects of BW-HS-101 were additionally evaluated against necrotic damage induced by intragastrical administration of 75% ethanol. Gastric mucosal damage was assessed microscopically, and gastric blood flow was determined by laser flowmetry. Gastric mucosal DNA oxidation and PGE2 concentration were assessed by ELISA. Serum and/or gastric protein concentrations of IL-1α, IL-1β, IL-2, IL-4, IL-6, IL-10, IL-13, VEGF, GM-CSF, IFN-γ, TNF-α, and EGF were determined by a microbeads/fluorescent-based multiplex assay. Changes in gastric mucosal iNOS, HMOX-1, SOCS3, IL1-R1, IL1-R2, TNF-R2, COX-1, and COX-2 mRNA were assessed by real-time PCR. BW-HS-101 or BW-iHS-101 applied at a dose of 50 μmol/kg protected gastric mucosa against ASA-induced gastric damage and prevented a decrease in the gastric blood flow level. H2S prodrug decreased DNA oxidation, systemic and gastric mucosal inflammation with accompanied upregulation of SOCS3, and EGF and HMOX-1 expression. Pharmacological inhibition of nitric oxide (NO) synthase but not carbon monoxide (CO)/heme oxygenase (HMOX) activity by L-NNA or ZnPP, respectively, reversed the gastroprotective effect of BW-HS-101. BW-HS-101 also protected against ethanol-induced gastric injury formation. We conclude that BW-HS-101, due to its ability to release H2S in a controllable manner, prevents gastric mucosa against drugs-induced gastropathy, inflammation and DNA oxidation, and upregulate gastric microcirculation. Gastroprotective effects of this H2S prodrug involves endogenous NO but not CO activity and could be mediated by cytoprotective and anti-inflammatory SOCS3 and EGF pathways.
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Affiliation(s)
- Dominik Bakalarz
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
- Department of Forensic Toxicology, Institute of Forensic Research, 31033 Cracow, Poland
| | - Edyta Korbut
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
| | - Zhengnan Yuan
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA; (Z.Y.); (B.Y.)
| | - Bingchen Yu
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA; (Z.Y.); (B.Y.)
| | - Dagmara Wójcik
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
| | - Aleksandra Danielak
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
| | - Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
| | - Slawomir Kwiecień
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
| | - Monika Marcinkowska
- Faculty of Pharmacy, Jagiellonian University Medical College, 30688 Cracow, Poland;
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA; (Z.Y.); (B.Y.)
| | - Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 31531 Cracow, Poland; (D.B.); (E.K.); (D.W.); (A.D.); (K.M.); (S.K.); (T.B.)
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85
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Oral Microbiota and Salivary Levels of Oral Pathogens in Gastro-Intestinal Diseases: Current Knowledge and Exploratory Study. Microorganisms 2021; 9:microorganisms9051064. [PMID: 34069179 PMCID: PMC8156550 DOI: 10.3390/microorganisms9051064] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/23/2022] Open
Abstract
Various bi-directional associations exist between oral health and gastro-intestinal diseases. The oral microbiome plays a role in the gastro-intestinal carcinogenesis and fusobacteria are the most investigated bacteria involved. This paper aims to review the current knowledge and report the preliminary data on salivary levels of Fusobacterium nucleatum, Porphyromonas gingivalis and Candida albicans in subjects with different gastro-intestinal conditions or pathologies, in order to determine any differences. The null hypothesis was “subjects with different gastro-intestinal diseases do not show significant differences in the composition of the oral microbiota”. Twenty-one subjects undergoing esophagastroduodenoscopy or colonscopy were recruited. For each subject, a salivary sample was collected before the endoscopy procedure, immediately stored at −20 °C and subsequently used for genomic bacterial DNA extraction by real-time PCR. Low levels of F. nucleatum and P. gingivalis were peculiar in the oral microbiota in subjects affected by Helicobater pylori-negative chronic gastritis without cancerization and future studies will elucidate this association. The level of C. albicans did not statistically differ among groups. This preliminary study could be used in the future, following further investigation, as a non-invasive method for the search of gastrointestinal diseases and associated markers.
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86
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Liu Y, Liao R, Qiang Z, Yang W, Cao J, Zeng H. Exogenous H 2S Protects Colon Cells in Ulcerative Colitis by Inhibiting NLRP3 and Activating Autophagy. DNA Cell Biol 2021; 40:748-756. [PMID: 33983842 DOI: 10.1089/dna.2020.6380] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Hydrogen sulfide (H2S) has been reported to participate in intestinal mucosal defense and repair. However, the precise regulatory mechanisms of H2S in ulcerative colitis (UC) remain unclear. We explored the effects of sodium hydrosulfide (NaHS), a donor of H2S, in dextran sulfate sodium (DSS)-induced colitis in rats. The pathologic features were determined by analyzing the hematoxylin and eosin-stained samples. Interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α), and myeloperoxidase (MPO) levels were determined using ELISA. The presence of cystathionine-γ-lyase (CSE) and light chain 3B (LC3B) were determined using immunohistochemical and immunofluorescence (IF) approaches, respectively. Next, we investigated the effects of NaHS in lipopolysaccharide (LPS)-stimulated human colonic smooth muscle cells (H2940). The level of reactive oxygen species (ROS) was determined using IF. NOD-like receptor 3 (NLRP3) and CSE were detected using western blot and quantitative real-time polymerase chain reaction. Autophagy was determined using western blot, IF, and electron microscopy. NaHS treatment considerably diminished colitis-induced histological injury and proinflammatory cytokine expressions. MPO, CSE, and H2S were downregulated, whereas LC3B was upregulated after NaHS administration in colitic rats. NaHS remarkably attenuated the levels of ROS, CSE, and NLRP3 in LPS-stimulated cells and enhanced autophagy, as was revealed by increased LC3-II-to-LC3-I ratio, elevated LC3, and decreased p62. Importantly, NaHS promoted autophagosome formation in LPS-treated cells. Exogenous H2S ameliorates intestinal injury by downregulating inflammation and activation of autophagy, suggesting the potential of NaHS as a therapeutic agent for UC.
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Affiliation(s)
- Ying Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin City, P.R. China
| | - Ribin Liao
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin City, P.R. China
| | - Zhanrong Qiang
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin City, P.R. China
| | - Wenjun Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin City, P.R. China
| | - Jie Cao
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin City, P.R. China
| | - Honghua Zeng
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin City, P.R. China
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87
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Murros KE, Huynh VA, Takala TM, Saris PEJ. Desulfovibrio Bacteria Are Associated With Parkinson's Disease. Front Cell Infect Microbiol 2021; 11:652617. [PMID: 34012926 PMCID: PMC8126658 DOI: 10.3389/fcimb.2021.652617] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/19/2021] [Indexed: 01/07/2023] Open
Abstract
Parkinson's disease (PD) is the most prevalent movement disorder known and predominantly affects the elderly. It is a progressive neurodegenerative disease wherein α-synuclein, a neuronal protein, aggregates to form toxic structures in nerve cells. The cause of Parkinson's disease (PD) remains unknown. Intestinal dysfunction and changes in the gut microbiota, common symptoms of PD, are evidently linked to the pathogenesis of PD. Although a multitude of studies have investigated microbial etiologies of PD, the microbial role in disease progression remains unclear. Here, we show that Gram-negative sulfate-reducing bacteria of the genus Desulfovibrio may play a potential role in the development of PD. Conventional and quantitative real-time PCR analysis of feces from twenty PD patients and twenty healthy controls revealed that all PD patients harbored Desulfovibrio bacteria in their gut microbiota and these bacteria were present at higher levels in PD patients than in healthy controls. Additionally, the concentration of Desulfovibrio species correlated with the severity of PD. Desulfovibrio bacteria produce hydrogen sulfide and lipopolysaccharide, and several strains synthesize magnetite, all of which likely induce the oligomerization and aggregation of α-synuclein protein. The substances originating from Desulfovibrio bacteria likely take part in pathogenesis of PD. These findings may open new avenues for the treatment of PD and the identification of people at risk for developing PD.
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Affiliation(s)
- Kari E. Murros
- Neurological Outpatient Clinic of Terveystalo Healthcare, Helsinki, Finland
| | - Vy A. Huynh
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Timo M. Takala
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Per E. J. Saris
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
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88
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Sokolov AS, Nekrasov PV, Shaposhnikov MV, Moskalev AA. Hydrogen sulfide in longevity and pathologies: Inconsistency is malodorous. Ageing Res Rev 2021; 67:101262. [PMID: 33516916 DOI: 10.1016/j.arr.2021.101262] [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: 10/23/2020] [Revised: 01/18/2021] [Accepted: 01/24/2021] [Indexed: 02/08/2023]
Abstract
Hydrogen sulfide (H2S) is one of the biologically active gases (gasotransmitters), which plays an important role in various physiological processes and aging. Its production in the course of methionine and cysteine catabolism and its degradation are finely balanced, and impairment of H2S homeostasis is associated with various pathologies. Despite the strong geroprotective action of exogenous H2S in C. elegans, there are controversial effects of hydrogen sulfide and its donors on longevity in other models, as well as on stress resistance, age-related pathologies and aging processes, including regulation of senescence-associated secretory phenotype (SASP) and senescent cell anti-apoptotic pathways (SCAPs). Here we discuss that the translation potential of H2S as a geroprotective compound is influenced by a multiplicity of its molecular targets, pleiotropic biological effects, and the overlapping ranges of toxic and beneficial doses. We also consider the challenges of the targeted delivery of H2S at the required dose. Along with this, the complexity of determining the natural levels of H2S in animal and human organs and their ambiguous correlations with longevity are reviewed.
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89
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Reframing Nutritional Microbiota Studies To Reflect an Inherent Metabolic Flexibility of the Human Gut: a Narrative Review Focusing on High-Fat Diets. mBio 2021; 12:mBio.00579-21. [PMID: 33849977 PMCID: PMC8092254 DOI: 10.1128/mbio.00579-21] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
There is a broad consensus in nutritional-microbiota research that high-fat (HF) diets are harmful to human health, at least in part through their modulation of the gut microbiota. However, various studies also support the inherent flexibility of the human gut and our microbiota’s ability to adapt to a variety of food sources, suggesting a more nuanced picture. There is a broad consensus in nutritional-microbiota research that high-fat (HF) diets are harmful to human health, at least in part through their modulation of the gut microbiota. However, various studies also support the inherent flexibility of the human gut and our microbiota’s ability to adapt to a variety of food sources, suggesting a more nuanced picture. In this article, we first discuss some problems facing basic translational research and provide a different framework for thinking about diet and gut health in terms of metabolic flexibility. We then offer evidence that well-formulated HF diets, such as ketogenic diets, may provide healthful alternative fuel sources for the human gut. We place this in the context of cancer research, where this concern over HF diets is also expressed, and consider various potential objections concerning the effects of lipopolysaccharides, trimethylamine-N-oxide, and secondary bile acids on human gut health. We end by providing some general suggestions for how to improve research and clinical practice with respect to the gut microbiota when considering the framework of metabolic flexibility.
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90
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Dawson CD, Irwin SM, Backman LRF, Le C, Wang JX, Vennelakanti V, Yang Z, Kulik HJ, Drennan CL, Balskus EP. Molecular basis of C-S bond cleavage in the glycyl radical enzyme isethionate sulfite-lyase. Cell Chem Biol 2021; 28:1333-1346.e7. [PMID: 33773110 PMCID: PMC8473560 DOI: 10.1016/j.chembiol.2021.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 02/04/2021] [Accepted: 03/03/2021] [Indexed: 01/07/2023]
Abstract
Desulfonation of isethionate by the bacterial glycyl radical enzyme (GRE) isethionate sulfite-lyase (IslA) generates sulfite, a substrate for respiration that in turn produces the disease-associated metabolite hydrogen sulfide. Here, we present a 2.7 Å resolution X-ray structure of wild-type IslA from Bilophila wadsworthia with isethionate bound. In comparison with other GREs, alternate positioning of the active site β strands allows for distinct residue positions to contribute to substrate binding. These structural differences, combined with sequence variations, create a highly tailored active site for the binding of the negatively charged isethionate substrate. Through the kinetic analysis of 14 IslA variants and computational analyses, we probe the mechanism by which radical chemistry is used for C-S bond cleavage. This work further elucidates the structural basis of chemistry within the GRE superfamily and will inform structure-based inhibitor design of IsIA and thus of microbial hydrogen sulfide production.
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Affiliation(s)
- Christopher D Dawson
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Stephania M Irwin
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
| | - Lindsey R F Backman
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chip Le
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
| | - Jennifer X Wang
- Harvard Center for Mass Spectrometry, Faculty of Arts and Sciences Division of Science, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA
| | - Vyshnavi Vennelakanti
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Zhongyue Yang
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Heather J Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Catherine L Drennan
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Emily P Balskus
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA; Broad Institute, Cambridge, MA 02139, USA.
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91
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Bakhti SZ, Latifi-Navid S. Oral microbiota and Helicobacter pylori in gastric carcinogenesis: what do we know and where next? BMC Microbiol 2021; 21:71. [PMID: 33663382 PMCID: PMC7934379 DOI: 10.1186/s12866-021-02130-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/21/2021] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the most common malignancies causing death worldwide, and Helicobacter pylori is a powerful inducer of precancerous lesions and GC. The oral microbiota is a complex ecosystem and is responsible for maintaining homeostasis, modulating the immune system, and resisting pathogens. It has been proposed that the gastric microbiota of oral origin is involved in the development and progression of GC. Nevertheless, the causal relationship between oral microbiota and GC and the role of H. pylori in this relationship is still controversial. This study was set to review the investigations done on oral microbiota and analyze various lines of evidence regarding the role of oral microbiota in GC, to date. Also, we discussed the interaction and relationship between H. pylori and oral microbiota in GC and the current understanding with regard to the underlying mechanisms of oral microbiota in carcinogenesis. More importantly, detecting the patterns of interaction between the oral cavity microbiota and H. pylori may render new clues for the diagnosis or screening of cancer. Integration of oral microbiota and H. pylori might manifest a potential method for the assessment of GC risk. Hence it needs to be specified the patterns of bacterial transmission from the oral cavity to the stomach and their interaction. Further evidence on the mechanisms underlying the oral microbiota communities and how they trigger GC may contribute to the identification of new prevention methods for GC. We may then modulate the oral microbiota by intervening with oral-gastric bacterial transmission or controlling certain bacteria in the oral cavity.
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Affiliation(s)
- Seyedeh Zahra Bakhti
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran
| | - Saeid Latifi-Navid
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran.
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92
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Internal connections between dietary intake and gut microbiota homeostasis in disease progression of ulcerative colitis: a review. FOOD SCIENCE AND HUMAN WELLNESS 2021. [DOI: 10.1016/j.fshw.2021.02.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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93
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Chen Q, He Z, Zhuo Y, Li S, Yang W, Hu L, Zhong H. Rubidium chloride modulated the fecal microbiota community in mice. BMC Microbiol 2021; 21:46. [PMID: 33588762 PMCID: PMC7885239 DOI: 10.1186/s12866-021-02095-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 01/19/2021] [Indexed: 12/24/2022] Open
Abstract
Background The microbiota plays an important role in host health. Although rubidium (Rb) has been used to study its effects on depression and cancers, the interaction between microbial commensals and Rb is still unexplored. To gain the knowledge of the relationship between Rb and microbes, 51 mice receiving RbCl-based treatment and 13 untreated mice were evaluated for their characteristics and bacterial microbiome changes. Results The 16S ribosomal RNA gene sequencing of fecal microbiota showed that RbCl generally maintained fecal microbial community diversity, while the shifts in fecal microbial composition were apparent after RbCl exposure. RbCl significantly enhanced the abundances of Rikenellaceae, Alistipes, Clostridium XlVa and sulfate-reducing bacteria including Deltaproteobacteria, Desulfovibrionales, Desulfovibrionaceae and Desulfovibrio, but significantly inhibited the abundances of Tenericutes, Mollicutes, Anaeroplasmatales, Anaeroplasmataceae and Anaeroplasma lineages. With regarding to the archaea, we only observed two less richness archaea Sulfolobus and Acidiplasma at the genus level. Conclusions Changes of fecal microbes may in part contribute to the anticancer or anti-depressant effects of RbCl. These findings further validate that the microbiome could be a target for therapeutic intervention. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02095-4.
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Affiliation(s)
- Qian Chen
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Zhiguo He
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Yuting Zhuo
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Shuzhen Li
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Wenjing Yang
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Liang Hu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Hui Zhong
- School of Life Sciences, Central South University, Changsha, 410013, China.
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94
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Wang X, Li J, Li N, Guan K, Yin D, Zhang H, Ding G, Hu Y. Evolution of Intestinal Gases and Fecal Short-Chain Fatty Acids Produced in vitro by Preterm Infant Gut Microbiota During the First 4 Weeks of Life. Front Pediatr 2021; 9:726193. [PMID: 34646797 PMCID: PMC8504453 DOI: 10.3389/fped.2021.726193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/27/2021] [Indexed: 12/31/2022] Open
Abstract
Background: The production of intestinal gases and fecal short-chain fatty acids (SCFAs) by infant gut microbiota may have a significant impact on their health, but information about the composition and volume of intestinal gases and SCFA profiles in preterm infants is scarce. Objective: This study examined the change of the composition and volume of intestinal gases and SCFA profiles produced by preterm infant gut microbiota in vitro during the first 4 weeks of life. Methods: Fecal samples were obtained at five time points (within 3 days, 1 week, 2 weeks, 3 weeks, and 4 weeks) from 19 preterm infants hospitalized in the neonatal intensive care unit (NICU) of Shanghai Children's Hospital, Shanghai Jiao Tong University between May and July 2020. These samples were initially inoculated into four different media containing lactose (LAT), fructooligosaccharide (FOS), 2'-fucosyllactose (FL-2), and galactooligosaccharide (GOS) and thereafter fermented for 24 h under conditions mimicking those of the large intestine at 37.8°C under anaerobic conditions. The volume of total intestinal gases and the concentrations of individual carbon dioxide (CO2), hydrogen (H2), methane (CH4), and hydrogen sulfide (H2S) were measured by a gas analyzer. The concentrations of total SCFAs, individual acetic acid, propanoic acid, butyric acid, isobutyric acid, pentanoic acid, and valeric acid were measured by gas chromatography (GC). Results: The total volume of intestinal gases (ranging from 0.01 to 1.64 ml in medium with LAT; 0-1.42 ml with GOS; 0-0.91 ml with FOS; and 0-0.44 ml with FL-2) and the concentrations of CO2, H2, H2S, and all six fecal SCFAs increased with age (p-trends < 0.05). Among them, CO2 was usually the predominant intestinal gas, and acetic acid was usually the predominant SCFA. When stratified by birth weight (<1,500 and ≥1,500 g), gender, and delivery mode, the concentration of CO2 was more pronounced among infants whose weight was ≥1,500 g than among those whose weight was <1,500 g (p-trends < 0.05). Conclusions: Our findings suggested that the intestinal gases and SCFAs produced by preterm infant gut microbiota in vitro increased with age during the first 4 weeks of life.
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Affiliation(s)
- Xuefang Wang
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Juan Li
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Na Li
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kunyu Guan
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Di Yin
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Huating Zhang
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Guodong Ding
- Department of Respiratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yong Hu
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
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95
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Du J, Zhang P, Luo J, Shen L, Zhang S, Gu H, He J, Wang L, Zhao X, Gan M, Yang L, Niu L, Zhao Y, Tang Q, Tang G, Jiang D, Jiang Y, Li M, Jiang A, Jin L, Ma J, Shuai S, Bai L, Wang J, Zeng B, Wu D, Li X, Zhu L. Dietary betaine prevents obesity through gut microbiota-drived microRNA-378a family. Gut Microbes 2021; 13:1-19. [PMID: 33550882 PMCID: PMC7889173 DOI: 10.1080/19490976.2020.1862612] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 11/05/2020] [Accepted: 11/20/2020] [Indexed: 02/04/2023] Open
Abstract
Betaine is a natural compound present in commonly consumed foods and may have a potential role in the regulation of glucose and lipids metabolism. However, the underlying molecular mechanism of its action remains largely unknown. Here, we show that supplementation with betaine contributes to improved high-fat diet (HFD)-induced gut microbiota dysbiosis and increases anti-obesity strains such as Akkermansia muciniphila, Lactobacillus, and Bifidobacterium. In mice lacking gut microbiota, the functional role of betaine in preventing HFD-induced obesity, metabolic syndrome, and inactivation of brown adipose tissues are significantly reduced. Akkermansia muciniphila is an important regulator of betaine in improving microbiome ecology and increasing strains that produce short-chain fatty acids (SCFAs). Increasing two main members of SCFAs including acetate and butyrate can significantly regulate the levels of DNA methylation at host miR-378a promoter, thus preventing the development of obesity and glucose intolerance. However, these beneficial effects are partially abolished by Yin yang (YY1), a common target gene of the miR-378a family. Taken together, our findings demonstrate that betaine can improve obesity and associated MS via the gut microbiota-derived miR-378a/YY1 regulatory axis, and reveal a novel mechanism by which gut microbiota improve host health.
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Affiliation(s)
- Jingjing Du
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Peiwen Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Jiang Luo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Linyuan Shen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Shunhua Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Hao Gu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Jin He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Linghui Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Xue Zhao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Mailing Gan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Liu Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Lili Niu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Ye Zhao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Qianzi Tang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Guoqing Tang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Dongmei Jiang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yanzhi Jiang
- College of Life and Biology Science, Sichuan Agricultural University, Chengdu, China
| | - Mingzhou Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Anan Jiang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Long Jin
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Jideng Ma
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Surong Shuai
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Lin Bai
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Jinyong Wang
- Chongqing Academy of Animal Science, Rongchang, China
| | - Bo Zeng
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - De Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Xuewei Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Li Zhu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
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96
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Manandhar S, Sinha P, Ejiwale G, Bhatia M. Hydrogen Sulfide and its Interaction with Other Players in Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1315:129-159. [PMID: 34302691 DOI: 10.1007/978-981-16-0991-6_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Hydrogen sulfide (H2S) plays a vital role in human physiology and in the pathophysiology of several diseases. In addition, a substantial role of H2S in inflammation has emerged. This chapter will discuss the involvement of H2S in various inflammatory diseases. Furthermore, the contribution of reactive oxygen species (ROS), adhesion molecules, and leukocyte recruitment in H2S-mediated inflammation will be discussed. The interrelationship of H2S with other gasotransmitters in inflammation will also be examined. There is mixed literature on the contribution of H2S to inflammation due to studies reporting both pro- and anti-inflammatory actions. These apparent discrepancies in the literature could be resolved with further studies.
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Affiliation(s)
- Sumeet Manandhar
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Priyanka Sinha
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Grace Ejiwale
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Madhav Bhatia
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand.
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97
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Yao ZW, Zhao BC, Yang X, Lei SH, Jiang YM, Liu KX. Relationships of sleep disturbance, intestinal microbiota, and postoperative pain in breast cancer patients: a prospective observational study. Sleep Breath 2020; 25:1655-1664. [PMID: 33211236 PMCID: PMC8376716 DOI: 10.1007/s11325-020-02246-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 10/21/2020] [Accepted: 11/07/2020] [Indexed: 12/29/2022]
Abstract
Purpose Our study was designed to examine the possible relationship between gut microbiota, sleep disturbances, and acute postoperative pain. Methods Using 16S rRNA sequencing, we analyzed preoperative fecal samples from women undergoing breast cancer surgery. Preoperative sleep disturbance was evaluated with the Pittsburgh Sleep Quality Index (PSQI) questionnaire. Peak and average pain at rest and movement were evaluated 24 h after surgery, using a numerical rating scale (NRS). Preoperative symptoms of depression and anxiety were assessed with the Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7), respectively. Inflammation was measured using white blood cell and neutrophil counts, together with platelet-lymphocyte ratio, and neutrophil-lymphocyte ratio. Results Preoperative sleep disturbance was associated with more severe acute postoperative pain. At the phylum level, women with poor sleep quality had higher relative abundance of Firmicutes (p = 0.021) and lower relative abundance of Bacteroidetes (p = 0.013). At the genus level, women with poor sleep quality harbored higher relative abundance of Acidaminococcus and lower relative abundance of several genera. The genus Alloprevotella was negatively associated with peak pain at movement during the first 24 h (r = − 0.592, p < 0.001). The genus Desulfovibrio was negatively associated with symptoms of anxiety (r = − 0.448, p = 0.006). However, partial correlations suggested that the relationship between Alloprevotella and peak pain at movement during the first 24 h was not statistically significant after controlling for sleep (r = − 0.134, p = 0.443). Conclusion These findings suggest that the changed gut microbiota may be involved in sleep-pain interaction and could be applied as a potential preventive method for postoperative pain. Trial registration The present clinical study has been registered on Chinese Clinical Trial Registry (www.chictr.org.cn); the clinical trial registration number is ChiCTR1900021730; the date of registration is March 7, 2019. Supplementary Information The online version contains supplementary material available at 10.1007/s11325-020-02246-3.
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Affiliation(s)
- Zhi-Wen Yao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Bing-Cheng Zhao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Xiao Yang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Shao-Hui Lei
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yu-Mei Jiang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Ke-Xuan Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China.
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98
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Vacante M, Ciuni R, Basile F, Biondi A. Gut Microbiota and Colorectal Cancer Development: A Closer Look to the Adenoma-Carcinoma Sequence. Biomedicines 2020; 8:E489. [PMID: 33182693 PMCID: PMC7697438 DOI: 10.3390/biomedicines8110489] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 12/13/2022] Open
Abstract
There is wide evidence that CRC could be prevented by regular physical activity, keeping a healthy body weight, and following a healthy and balanced diet. Many sporadic CRCs develop via the traditional adenoma-carcinoma pathway, starting as premalignant lesions represented by conventional, tubular or tubulovillous adenomas. The gut bacteria play a crucial role in regulating the host metabolism and also contribute to preserve intestinal barrier function and an effective immune response against pathogen colonization. The microbiota composition is different among people, and is conditioned by many environmental factors, such as diet, chemical exposure, and the use of antibiotic or other medication. The gut microbiota could be directly involved in the development of colorectal adenomas and the subsequent progression to CRC. Specific gut bacteria, such as Fusobacterium nucleatum, Escherichia coli, and enterotoxigenic Bacteroides fragilis, could be involved in colorectal carcinogenesis. Potential mechanisms of CRC progression may include DNA damage, promotion of chronic inflammation, and release of bioactive carcinogenic metabolites. The aim of this review was to summarize the current knowledge on the role of the gut microbiota in the development of CRC, and discuss major mechanisms of microbiota-related progression of the adenoma-carcinoma sequence.
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Affiliation(s)
- Marco Vacante
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Via S. Sofia 78, 95123 Catania, Italy; (R.C.); (F.B.); (A.B.)
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99
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Mucosal microbiota and gene expression are associated with long-term remission after discontinuation of adalimumab in ulcerative colitis. Sci Rep 2020; 10:19186. [PMID: 33154436 PMCID: PMC7644643 DOI: 10.1038/s41598-020-76175-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 09/21/2020] [Indexed: 02/07/2023] Open
Abstract
Given that sustained remission is the ultimate treatment goal in the management of patients with ulcerative colitis (UC), the decision to stop anti-tumor necrosis factor (anti-TNF) treatment in UC patients is difficult. The aim of this study was to evaluate mucosal microbiota and gene expression profiles associated with long-term remission after discontinuation of anti-TNF therapy. In nine UC patients who received anti-TNF therapy for 6 months, microbiota isolated from uninflamed mucosae and gene expression in inflamed and uninflamed mucosae were investigated at week 0 and at week 24. At treatment initiation, Fusobacterium sp. and Veillonella dispar were over-represented in the relapse group compared with the non-relapse group. After treatment, Dorea sp. and Lachnospira sp. were over-represented in the non-relapse group. In the relapse group only, a significant shift in gut bacterial community composition was found between week 0 and week 24. Gene expression of ALIX (PDCD6IP) and SLC9A3 was significantly higher in the non-relapse group than in the relapse group. Lastly, we used machine learning methods to identify relevant gene signatures associated with sustained remission. Statistical analyses of microbiota and expression profiles revealed differences between UC patients who did or did not keep remission after the discontinuation of TNF inhibitors. Trial registration: UMIN000020785: Evaluation of adalimumab therapy in mesalazine-resistant or -intolerant ulcerative colitis; an observational study (EARLY study).
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100
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Haange SB, Groeger N, Froment J, Rausch T, Burkhardt W, Gonnermann S, Braune A, Blaut M, von Bergen M, Rolle-Kampczyk U. Multiplexed Quantitative Assessment of the Fate of Taurine and Sulfoquinovose in the Intestinal Microbiome. Metabolites 2020; 10:E430. [PMID: 33114761 PMCID: PMC7692227 DOI: 10.3390/metabo10110430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/13/2020] [Accepted: 10/23/2020] [Indexed: 12/25/2022] Open
Abstract
(1) Introduction: Sulfonates, which can be diet- or host-derived, are a class of compounds detected in the gut, are involved in host-microbiome interactions and have several health effects. Our aim was to develop a method to quantify five of the sulfonates in the intestine and apply it in a simplified human microbiome model. These were taurine, its metabolic precursor cysteate and one of its degradation products isethionate, as well as sulfoquinovose and one of its most relevant degradation products 2,3-dihydroxy-1-propanesulfonate. (2) Methods: An extraction and sample preparation method was developed, without the need for derivatization. To detect and quantify the extracted sulfonates, a multiplexed LC-MS/MS-MRM method was established. (3) Results: The accuracy and precision of the method were within GLP-accepted parameters (www.ema.europa.eu). To apply this method in a pilot study, we spiked either taurine or sulfoquinovose into an in vitro simplified human microbiota model with and without Bilophila wadsworthia, a known sulfonate utilizer. The results revealed that only the culture with B. wadsworthia was able to degrade taurine, with isethionate as an intermediate. After spiking the communities with sulfoquinovose, the results revealed that the simplified human microbiome model was able to degrade sulfoquinovose to 2,3-dihydroxypropane-1-sulfonate, which was probably catalyzed by Escherichia coli. In the community with B. wadsworthia, the 2,3-dihydroxypropane-1-sulfonate produced was further degraded by B. wadsworthia to sulfide. (4) Conclusions: We successfully developed a method for sulfonate quantification and applied it in a first pilot study.
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Affiliation(s)
- Sven-Bastiaan Haange
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research—UFZ, 04318 Leipzig, Germany; (N.G.); (J.F.); (M.v.B.)
| | - Nicole Groeger
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research—UFZ, 04318 Leipzig, Germany; (N.G.); (J.F.); (M.v.B.)
| | - Jean Froment
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research—UFZ, 04318 Leipzig, Germany; (N.G.); (J.F.); (M.v.B.)
| | - Theresa Rausch
- Research Group Intestinal Microbiology, Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558 Nuthetal, Germany; (T.R.); (W.B.); (S.G.); (A.B.); (M.B.)
| | - Wiebke Burkhardt
- Research Group Intestinal Microbiology, Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558 Nuthetal, Germany; (T.R.); (W.B.); (S.G.); (A.B.); (M.B.)
| | - Svenja Gonnermann
- Research Group Intestinal Microbiology, Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558 Nuthetal, Germany; (T.R.); (W.B.); (S.G.); (A.B.); (M.B.)
| | - Annett Braune
- Research Group Intestinal Microbiology, Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558 Nuthetal, Germany; (T.R.); (W.B.); (S.G.); (A.B.); (M.B.)
| | - Michael Blaut
- Research Group Intestinal Microbiology, Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558 Nuthetal, Germany; (T.R.); (W.B.); (S.G.); (A.B.); (M.B.)
| | - Martin von Bergen
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research—UFZ, 04318 Leipzig, Germany; (N.G.); (J.F.); (M.v.B.)
- Institute of Biochemistry, Faculty of Life Sciences, University of Leipzig, 04103 Leipzig, Germany
| | - Ulrike Rolle-Kampczyk
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research—UFZ, 04318 Leipzig, Germany; (N.G.); (J.F.); (M.v.B.)
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