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Bano N, Khan S, Ahamad S, Kanshana JS, Dar NJ, Khan S, Nazir A, Bhat SA. Microglia and gut microbiota: A double-edged sword in Alzheimer's disease. Ageing Res Rev 2024; 101:102515. [PMID: 39321881 DOI: 10.1016/j.arr.2024.102515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 09/06/2024] [Accepted: 09/19/2024] [Indexed: 09/27/2024]
Abstract
The strong association between gut microbiota (GM) and brain functions such as mood, behaviour, and cognition has been well documented. Gut-brain axis is a unique bidirectional communication system between the gut and brain, in which gut microbes play essential role in maintaining various molecular and cellular processes. GM interacts with the brain through various pathways and processes including, metabolites, vagus nerve, HPA axis, endocrine system, and immune system to maintain brain homeostasis. GM dysbiosis, or an imbalance in GM, is associated with several neurological disorders, including anxiety, depression, and Alzheimer's disease (AD). Conversely, AD is sustained by microglia-mediated neuroinflammation and neurodegeneration. Further, GM and their products also affect microglia-mediated neuroinflammation and neurodegeneration. Despite the evidence connecting GM dysbiosis and AD progression, the involvement of GM in modulating microglia-mediated neuroinflammation in AD remains elusive. Importantly, deciphering the mechanism/s by which GM regulates microglia-dependent neuroinflammation may be helpful in devising potential therapeutic strategies to mitigate AD. Herein, we review the current evidence regarding the involvement of GM dysbiosis in microglia activation and neuroinflammation in AD. We also discuss the possible mechanisms through which GM influences the functioning of microglia and its implications for therapeutic intervention. Further, we explore the potential of microbiota-targeted interventions, such as prebiotics, probiotics, faecal microbiota transplantation, etc., as a novel therapeutic strategy to mitigate neuroinflammation and AD progression. By understanding and exploring the gut-brain axis, we aspire to revolutionize the treatment of neurodegenerative disorders, many of which share a common theme of microglia-mediated neuroinflammation and neurodegeneration.
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Affiliation(s)
- Nargis Bano
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India
| | - Sameera Khan
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India
| | - Shakir Ahamad
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Jitendra Singh Kanshana
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburg, PA, USA.
| | - Nawab John Dar
- CNB, SALK Institute of Biological Sciences, La Jolla, CA 92037, USA.
| | - Sumbul Khan
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India
| | - Aamir Nazir
- Division of Neuroscience and Ageing Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India; Academy of Scientific and Innovative Research, New Delhi, India.
| | - Shahnawaz Ali Bhat
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India.
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Cao F, Zhang H, Xu B, Li C. Genetic association between gut microbiota and the risk of Guillain-Barré syndrome. J Affect Disord 2024; 357:171-178. [PMID: 38703912 DOI: 10.1016/j.jad.2024.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 04/23/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
BACKGROUND Guillain-Barré Syndrome (GBS) is an autoimmune disease that typically develops after a previous gastrointestinal (GI) infection. However, the exact association between Gut Microbiota (GM) and GBS still remains unknown due to various challenges. This study aimed to investigate the potential causal association between GM and GBS by using a two-sample Mendelian Randomization (TSMR) analysis. METHODS Utilizing the largest available genome-wide association study (GWAS) meta-analysis from the MiBioGen consortium (n = 13,266) as a foundation, we conducted a TSMR to decipher the causal relationship between GM and GBS. Various analytical methods were employed, including the inverse variance weighted (IVW), MR-PRESSO, MR-Egger, and weighted median. The heterogeneity of instrumental variables (IVs) was assessed using Cochran's Q statistics. RESULTS The analysis identified three microbial taxa with a significantly increased risk association for GBS, including Ruminococcus gnavus group (OR = 1.40, 95 % CI: 1.07-1.83), Ruminococcus gauvreauii group (OR = 1.51, 95 % CI: 1.02-2.25), and Ruminococcaceae UCG009 (OR = 1.42, 95 % CI: 1.02-1.97), while Eubacterium brachy group (OR = 1.44, 95 % CI: 1.10-1.87) and Romboutsia (OR = 1.67, 95 % CI: 1.12-2.47) showed a suggestively causal association. On the other hand, Ruminococcaceae UCG004 (OR = 0.61, 95 % CI: 0.41-0.91) had a protective effect on GBS, while Bacilli (OR = 0.60, 95 % CI: 0.38-0.96), Gamma proteobacteria (OR = 0.63, 95 % CI: 0.41-0.98) and Lachnospiraceae UCG001 (OR = 0.69, 95 % CI: 0.49-0.96) showed a suggestively protective association for GBS. CONCLUSION The MR analysis suggests a potential causal relationship between specific GM taxa and the risk of GBS. However, further extensive research involving diversified populations is imperative to validate these findings.
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Affiliation(s)
- Fangzheng Cao
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China; The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, China
| | - Houwen Zhang
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China; The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, China
| | - Bin Xu
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, China; Department of Neurology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Chunrong Li
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
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Bibbò S, Porcari S, Del Vecchio LE, Severino A, Mullish BH, Ianiro G, Gasbarrini A, Cammarota G. Gut microbiota and immunotherapy of renal cell carcinoma. Hum Vaccin Immunother 2023; 19:2268982. [PMID: 37955340 PMCID: PMC10653624 DOI: 10.1080/21645515.2023.2268982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 10/06/2023] [Indexed: 11/14/2023] Open
Abstract
The gut microbiome has recently been proposed as a key player in cancer development and progression. Several studies have reported that the composition of the gut microbiome plays a role in the response to immune checkpoint inhibitors (ICIs). The gut microbiome modulation has been investigated as a potential therapeutic strategy for cancer, mainly in patients undergoing therapy with ICIs. In particular, modulation through probiotics, FMT or other microbiome-related approaches have proven effective to improve the response to ICIs. In this review, we examine the role of the gut microbiome in enhancing clinical responses to ICIs in the treatment of renal cancer.
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Affiliation(s)
- Stefano Bibbò
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Serena Porcari
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Livio Enrico Del Vecchio
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Andrea Severino
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Benjamin H. Mullish
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, St Mary’s Hospital Campus, Imperial College London, London, UK
- Departments of Gastroenterology and Hepatology, St Mary’s Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Gianluca Ianiro
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Antonio Gasbarrini
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Giovanni Cammarota
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, Italy
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Zhao ZS, Yang LY, Li FX, Cun W, Wang XY, Cao CQ, Zhang QL. Gut flora alterations among aquatic firefly Aquatica leii inhabiting various dissolved oxygen in fresh water. iScience 2023; 26:107809. [PMID: 37744031 PMCID: PMC10514463 DOI: 10.1016/j.isci.2023.107809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 08/01/2023] [Accepted: 08/30/2023] [Indexed: 09/26/2023] Open
Abstract
Knowledge about the impact of different dissolved oxygen (DO) on the composition and function of gut bacteria of aquatic insects is largely unknown. Herein, we constructed freshwater environments with different DOs (hypoxia: 2.50 ± 0.50, normoxia: 7.00 ± 0.50, and hyperoxia: 13.00 ± 0.50 mg/L) where aquatic firefly Aquatica leii larvae lived for three months. Their gut flora was analyzed using the combination of 16S rRNA amplicon sequencing and metagenomics. The results showed no difference in alpha diversity of the gut flora between A. leii inhabiting various DOs. However, the relative abundance of several bacterial lineages presented significant changes, such as Pseudomonas. In addition, bacterial genes with an altered relative abundance in response to various DOs were primarily related to metabolism. The alteration of these functions correlated with the DO change. This is the first to uncover structure of gut flora under various DOs in aquatic insect larvae.
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Affiliation(s)
- Zi-Shun Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Lin-Yu Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Fu-Xin Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Wei Cun
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xing-Yan Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Cheng-Quan Cao
- College of Life Sciences, Leshan Normal University, Leshan, Sichuan 614004, China
| | - Qi-Lin Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
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Ismael M, Qayyum N, Gu Y, Zhezhe Y, Cui Y, Zhang Y, Lü X. Protective effect of plantaricin bio-LP1 bacteriocin on multidrug-resistance Escherichia Coli infection by alleviate the inflammation and modulate of gut-microbiota in BALB/c mice model. Int J Biol Macromol 2023; 246:125700. [PMID: 37414312 DOI: 10.1016/j.ijbiomac.2023.125700] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/08/2023]
Abstract
The rapid spread of multidrug-resistant pathogens with the low efficacy of common antibiotics for humans and animals in its clinical therapeutics are a global health concern. Therefore, there is a need to develop new treatment strategies to control them clinically. The study aimed to evaluate the effects of Plantaricin Bio-LP1 bacteriocin produced from Lactiplantibacillus plantarum NWAFU-BIO-BS29 to alleviate the inflammation caused by multidrug-resistance Escherichia Coli (MDR-E. coli) infection in BALB/c mice-model. The focus was given on aspects linked to the mechanism of the immune response. Results indicated that Bio-LP1 had highly promising effects on partially ameliorating MDR-E. coli infection by reducing the inflammatory response through inhibiting the overexpression of proinflammatory-cytokines such as secretion of tumor necrosis factor (TNF-α) and interleukin (IL-6 and IL-β) and strongly regulated theTLR4 signaling-pathway. Additionally, avoided the villous destruct, colon length shortening, loss of intestinal barrier integrity, and increased disease activity index. Furthermore, significantly increased the relative abundance of beneficial-intestinal-bacteria including Ligilactobacillus, Enterorhabdus, Pervotellaceae, etc. Finally, improved the intestinal mucosal barrier to alleviate the pathological damages and promote the production of short-chain fatty acids (SCFAs) a source of energy for the proliferation. In conclusion, plantaricin Bio-LP1 bacteriocin can be considered a safe alternative to antibiotics against MDR-E. coli-induced intestinal inflammation.
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Affiliation(s)
- Mohamedelfatieh Ismael
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; Sudanese Standard and Metrology Organization, Khartoum, 13573, Sudan
| | - Nageena Qayyum
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yaxin Gu
- College of Food Science, China Agricultural University, Beijing, China
| | - Yu Zhezhe
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yanlong Cui
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yu Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Xin Lü
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
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Smith MM, Melrose J. Xylan Prebiotics and the Gut Microbiome Promote Health and Wellbeing: Potential Novel Roles for Pentosan Polysulfate. Pharmaceuticals (Basel) 2022; 15:ph15091151. [PMID: 36145372 PMCID: PMC9503530 DOI: 10.3390/ph15091151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/17/2022] [Accepted: 09/09/2022] [Indexed: 12/12/2022] Open
Abstract
This narrative review highlights the complexities of the gut microbiome and health-promoting properties of prebiotic xylans metabolized by the gut microbiome. In animal husbandry, prebiotic xylans aid in the maintenance of a healthy gut microbiome. This prevents the colonization of the gut by pathogenic organisms obviating the need for dietary antibiotic supplementation, a practice which has been used to maintain animal productivity but which has led to the emergence of antibiotic resistant bacteria that are passed up the food chain to humans. Seaweed xylan-based animal foodstuffs have been developed to eliminate ruminant green-house gas emissions by gut methanogens in ruminant animals, contributing to atmospheric pollution. Biotransformation of pentosan polysulfate by the gut microbiome converts this semi-synthetic sulfated disease-modifying anti-osteoarthritic heparinoid drug to a prebiotic metabolite that promotes gut health, further extending the therapeutic profile and utility of this therapeutic molecule. Xylans are prominent dietary cereal components of the human diet which travel through the gastrointestinal tract as non-digested dietary fibre since the human genome does not contain xylanolytic enzymes. The gut microbiota however digest xylans as a food source. Xylo-oligosaccharides generated in this digestive process have prebiotic health-promoting properties. Engineered commensal probiotic bacteria also have been developed which have been engineered to produce growth factors and other bioactive factors. A xylan protein induction system controls the secretion of these compounds by the commensal bacteria which can promote gut health or, if these prebiotic compounds are transported by the vagal nervous system, may also regulate the health of linked organ systems via the gut–brain, gut–lung and gut–stomach axes. Dietary xylans are thus emerging therapeutic compounds warranting further study in novel disease prevention protocols.
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Affiliation(s)
- Margaret M. Smith
- Raymond Purves Laboratory of Bone and Joint Research, Kolling Institute of Medical Research, Faculty of Health and Science, University of Sydney at Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
| | - James Melrose
- Raymond Purves Laboratory of Bone and Joint Research, Kolling Institute of Medical Research, Faculty of Health and Science, University of Sydney at Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Sydney Medical School, Northern Campus, University of Sydney at Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
- Correspondence:
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Kayacan Y, Kola AZ, Guandalini S, Yazar H, Söğüt MÜ. The Use of Probiotics Combined with Exercise Affects Thiol/Disulfide Homeostasis, an Oxidative Stress Parameter. Nutrients 2022; 14:nu14173555. [PMID: 36079815 PMCID: PMC9460532 DOI: 10.3390/nu14173555] [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: 07/26/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Intestinal microbiota play a role in the health and performance of athletes, and can be influenced by probiotics. Thus, in this study, we aimed to investigate the effect of the use of probiotics combined with chronic exercise on the thiol/disulfide homeostasis, a novel marker of oxidative stress. Methods: Male Wistar rats were randomly divided into four groups: control (Cn), exercise (Ex), probiotics (P), and probiotics + exercise (PEx). A capsule containing 6 × 108 CFU of L. rhamnosus, L. paracasei, L. acidophilus, and B. lactis was given daily for eight weeks to all the experimental animals. The total thiol (TT, μmol/L) and native thiol (NT, μmol/L) concentrations were measured to determine the oxidative stress parameters. The dynamic disulfide (DD, %), reduced thiol (RT, %), oxidized thiol (OT, %), and thiol oxidation reduction (TOR, %) ratios were analyzed. Results: The TT level was found to be significantly higher in the Ex group (p = 0.047, η2 = 0.259). The DD level, a marker of oxidation, was significantly lower in the PEx group (p = 0.042, η2 = 0.266); the highest value of this parameter was found in the Ex group. The use of probiotics alone had no effect on thiol/disulfide homeostasis. Conclusions: We showed, for the first time, that probiotics administered “with exercise” decreased dynamic disulfide and significantly reduced oxidative damage. Therefore, we speculate that the use of probiotics in sports involving intense exercise might be beneficial to reduce oxidative stress.
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Affiliation(s)
- Yıldırım Kayacan
- Faculty of Yasar Dogu Sports Sciences, Ondokuz Mayıs University, Samsun 55139, Turkey
| | - Aybike Zeynep Kola
- Faculty of Yasar Dogu Sports Sciences, Ondokuz Mayıs University, Samsun 55139, Turkey
| | - Stefano Guandalini
- Pediatrics-Gastroenterology, University of Chicago Medicine, Chicago, IL 60637, USA
- Correspondence:
| | - Hayrullah Yazar
- Department of Medical Biochemistry, Sakarya University Faculty of Medicine, Sakarya 54050, Turkey
| | - Mehtap Ünlü Söğüt
- Faculty of Health Sciences Department of Nutrition and Dietetics, Ondokuz Mayıs University, Samsun 55139, Turkey
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Helicobacter bilis Contributes to the Occurrence of Inflammatory Bowel Disease by Inducing Host Immune Disorders. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1837850. [PMID: 35983246 PMCID: PMC9381287 DOI: 10.1155/2022/1837850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/17/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022]
Abstract
Gut microbiota coevolve with humans to achieve a symbiotic relationship, which ultimately leads to physiological homeostasis. A variety of diseases can occur once this balance is disrupted. Helicobacter bilis (H. bilis) is an opportunistic pathogen in humans, triggering multiple diseases, including inflammatory bowel disease (IBD). IBD is a chronic immunologically mediated inflammation of the human gastrointestinal tract, and its occurrence is closely related to the gut microbiota. Several studies have demonstrated that H. bilis colonization is associated with IBD, and its mechanism is related to host immunity. However, few studies have investigated these mechanisms of action. Therefore, this article is aimed at reviewing these studies and summarizing the mechanisms of H. bilis-induced IBD from two perspectives: adaptive immunity and innate immunity. Furthermore, this study provides a preliminary discussion on treating H. bilis-related IBD. In addition, we also demonstrated that H. bilis played an important role in promoting the carcinogenesis of IBD and discussed its mechanism.
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Wang T, Shi C, Wang S, Zhang Y, Wang S, Ismael M, Zhang J, Wang X, Lü X. Protective Effects of Companilactobacillus crustorum MN047 against Dextran Sulfate Sodium-Induced Ulcerative Colitis: A Fecal Microbiota Transplantation Study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1547-1561. [PMID: 35077172 DOI: 10.1021/acs.jafc.1c07316] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Gut microbiota dysbiosis could aggravate the development of ulcerative colitis (UC). Companilactobacillus crustorum MN047 (CCMN) is a potential gut microbiota-regulating probiotic that could produce multiple novel bacteriocins. In this study, fecal microbiota transplantation (FMT) was used to verify whether CCMN could alleviate dextran sulfate sodium-induced UC by regulating gut microbiota. Results showed that both CCMN and FMT ameliorated the symptoms of UC, including attenuating the increased disease activity index, shortened colon length, gut barrier damage, and inflammation. Briefly, CCMN and FMT upregulated the expressions of MUCs and tight junctions, downregulated the expressions of proinflammatory cytokines and chemokines, increased fecal short-chain fatty acids, and lowered serum lipopolysaccharides, which were associated with the regulation of gut microbiota (e.g., increased Akkermansia, Blautia, and Ruminococcus levels). These results demonstrated that CCMN could ameliorate UC by modulating gut microbiota and inhibiting the TLR4/NF-κB pathway. Therefore, CCMN could be considered as a potential probiotic supplement for ameliorating UC.
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Affiliation(s)
- Tao Wang
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Caihong Shi
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Shuxuan Wang
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Yu Zhang
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Shuang Wang
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Mohamedelfaieh Ismael
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Jing Zhang
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Xin Wang
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
| | - Xin Lü
- College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
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Chen P, Tang X. Gut Microbiota as Regulators of Th17/Treg Balance in Patients With Myasthenia Gravis. Front Immunol 2022; 12:803101. [PMID: 35003133 PMCID: PMC8732367 DOI: 10.3389/fimmu.2021.803101] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/07/2021] [Indexed: 12/12/2022] Open
Abstract
Myasthenia gravis (MG) is an acquired neurological autoimmune disorder characterized by dysfunctional transmission at the neuromuscular junction, with its etiology associated with genetic and environmental factors. Anti-inflammatory regulatory T cells (Tregs) and pro-inflammatory T helper 17 (Th17) cells functionally antagonize each other, and the immune imbalance between them contributes to the pathogenesis of MG. Among the numerous factors influencing the balance of Th17/Treg cells, the gut microbiota have received attention from scholars. Gut microbial dysbiosis and altered microbial metabolites have been seen in patients with MG. Therefore, correcting Th17/Treg imbalances may be a novel therapeutic approach to MG by modifying the gut microbiota. In this review, we initially review the association between Treg/Th17 and the occurrence of MG and subsequently focus on recent findings on alterations of gut microbiota and microbial metabolites in patients with MG. We also explore the effects of gut microbiota on Th17/Treg balance in patients with MG, which may provide a new direction for the prevention and treatment of this disease.
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Affiliation(s)
- Pan Chen
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiangqi Tang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
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