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Cheng X, Cui C, Shen S, Li Z, Zhao Y, Li C, Kermode AG, Zhong X, Qiu W. Probiotics-regulated lithocholic acid suppressed B-cell differentiation in neuromyelitis optica spectrum disorder. J Neuroimmunol 2024; 395:578422. [PMID: 39178494 DOI: 10.1016/j.jneuroim.2024.578422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 07/06/2024] [Accepted: 07/25/2024] [Indexed: 08/26/2024]
Abstract
Intestinal microbes play a crucial role in gut health and the immune-mediated central nervous system through the "gut-brain" axis. However, probiotic safety and efficacy in Neuromyelitis optica spectrum disorder (NMOSD) are not well-explored. A pilot clinic trial for NMOSD with probiotic intervention revealed alterations in the microbiota (increased Anaerostipes, Bacteroides; decreased Granulicatella, Streptococcus, Rothia). Metabolite analysis showed elevated 2-methylbutyric and isobutyric acids, reduced lithocholic acid (LCA), and glycodeoxycholic acid (GDCA). Immune markers Interleukin (IL-7), vascular endothelial growth factor (VEGF-A), and B lymphocyte chemoattractant (BLC) decreased, while plasma cells and transitional B cells increased post-probiotics, suggesting potential immunomodulatory effects on NMOSD.
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Affiliation(s)
- Xi Cheng
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China
| | - Chunping Cui
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China
| | - Shishi Shen
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China
| | - Zhibin Li
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China
| | - Yipeng Zhao
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China
| | - Caixia Li
- School of Mathematics, Sun Yat-sen University, Guangzhou, Guangdong Province, PR China
| | - Allan G Kermode
- Centre for Neuromuscular and Neurological Disorders, Perron Institute, University of Western Australia, Perth, Australia; Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Australia
| | - Xiaonan Zhong
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
| | - Wei Qiu
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
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Yang X, Zhangyi Z, Yu A, Zhou Q, Xia A, Qiu J, Cai M, Chu X, Li L, Feng Z, Luo Z, Sun G, Zhang J, Geng M, Chen S, Xie Z. GV-971 attenuates the progression of neuromyelitis optica in murine models and reverses alterations in gut microbiota and associated peripheral abnormalities. CNS Neurosci Ther 2024; 30:e14847. [PMID: 38973196 PMCID: PMC11228355 DOI: 10.1111/cns.14847] [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: 01/06/2024] [Revised: 06/12/2024] [Accepted: 06/25/2024] [Indexed: 07/09/2024] Open
Abstract
AIMS Growing evidence suggests that an imbalanced gut microbiota composition plays a crucial role in the development of neuromyelitis optica spectrum disorders (NMOSD), an inflammatory demyelinating disease primarily affecting the optic nerves and central nervous system (CNS). In light of this, we explored the potential therapeutic benefits of GV-971 in NMOSD. GV-971 is a drug used for treating mild-to-moderate Alzheimer's disease, which targets the gut-brain axis and reduces neuroinflammation. METHODS To evaluate GV-971's effects, we employed the experimental autoimmune encephalomyelitis (EAE) mouse model to establish NMOSD animal models. This was achieved by injecting NMO-IgG into aged mice (11 months old) or using NMO-IgG along with complement injection and microbubble-enhanced low-frequency ultrasound (MELFUS) techniques in young mice (7 weeks old). We assessed the impact of GV-971 on incidence rate, clinical scores, body weight, and survival, with methylprednisolone serving as a positive control. In NMOSD models of young mice, we analyzed spinal cord samples through H&E staining, immunohistochemistry, and Luxol Fast Blue staining. Fecal samples collected at different time points underwent 16S rRNA gene sequencing, while plasma samples were analyzed using cytokine array and untargeted metabolomics analysis. RESULTS Our findings indicated that GV-971 significantly reduced the incidence of NMOSD, alleviated symptoms, and prolonged survival in NMOSD mouse models. The NMOSD model exhibited substantial neuroinflammation and injury, accompanied by imbalances in gut microbiota, peripheral inflammation, and metabolic disorders, suggesting a potentially vicious cycle that accelerates disease pathogenesis. Notably, GV-971 effectively reduces neuroinflammation and injury, and restores gut microbiota composition, as well as ameliorates peripheral inflammation and metabolic disorders. CONCLUSIONS GV-971 attenuates the progression of NMOSD in murine models and reduces neuroinflammation and injury, likely through its effects on remodeling gut microbiota and peripheral inflammation and metabolic disorders.
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Affiliation(s)
- Xinying Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Zhongheng Zhangyi
- Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Aisong Yu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Qinming Zhou
- Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Aihua Xia
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Ji Qiu
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Meixiang Cai
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Xingkun Chu
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Liang Li
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Zhengnan Feng
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Zhiyu Luo
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Guangqiang Sun
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, China
| | - Jing Zhang
- Shanghai Green Valley Pharmaceutical Co., Ltd, Shanghai, China
| | - Meiyu Geng
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, China
| | - Sheng Chen
- Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Zuoquan Xie
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
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Chen H, Xu Z, Zhou Y, Jiang YH, Chen J, Xiong Y, Zhou M, Wu X, Hong D. Rituximab-induced gut microbiota changes in Chinese neuromyelitis optica spectrum disorders. Mult Scler Relat Disord 2024; 86:105606. [PMID: 38636269 DOI: 10.1016/j.msard.2024.105606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/30/2024] [Accepted: 04/07/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Recent evidence shows that immunosuppressive agents can affect the gut microbiota in autoimmune diseases. However, the relationship between the gut microbiome and B-cell depletion immunotherapy in neuromyelitis optica spectrum disorder (NMOSD) remains poorly understood. OBJECTIVES To evaluate the distinct intestinal microbial patterns and serum cytokine levels after short-term rituximab treatment (three months) in patients with NMOSD. METHODS Firstly, we conducted a cross-sectional study involving 46 treatment-naïve NMOSD patients and 48 matched healthy controls. We collected fecal specimens, which were then analyzed using next-generation sequencing, and quantified serum cytokines. Subsequently, fecal and serum samples were re-collected and re-evaluated in 31 of the 46 treatment-naïve NMOSD patients after RTX treatment. RESULTS Comparing the gut microbiome of treatment-naïve NMOSD patients to that of healthy controls revealed low α-diversity and distinct microbial compositions in the former. The microbial composition in NMOSD patients underwent changes following three months of RTX treatment. Specifically, the levels of IL-17F and IL-6 decreased, while those of IL-10 and TNFα increased after RTX treatment. LEfSe analysis identified 27 KEGG categories with significantly differential abundances between NMOSD patients and RTX treatment group. CONCLUSIONS Our study provides a comprehensive understanding of the gut microbiota landscape in the context of B-cell depletion immunotherapy. We observed dysbiosis in the gut microbiome of NMOSD patients, which was partially alleviated by three months of RTX treatment. This suggests that B-cell depletion may play a crucial role in driving changes in the gastrointestinal environment.
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Affiliation(s)
- Hao Chen
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China
| | - Zubing Xu
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China
| | - Yu Zhou
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China
| | - Yu-Huan Jiang
- Medical Laborotary, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China
| | - Jin Chen
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China
| | - Yingqiong Xiong
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China
| | - Meihong Zhou
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China
| | - Xiaomu Wu
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China.
| | - Daojun Hong
- Department of Neurology, The First Affiliated Hospital Nanchang University, Nanchang, Jiangxi Province, 330006, China.
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Hong A, Umar A, Chen H, Yu Z, Huang J. Advances in the study of the interaction between schistosome infections and the host's intestinal microorganisms. Parasit Vectors 2024; 17:185. [PMID: 38600604 PMCID: PMC11007984 DOI: 10.1186/s13071-024-06245-1] [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: 01/03/2024] [Accepted: 03/12/2024] [Indexed: 04/12/2024] Open
Abstract
Schistosomiasis, also called bilharziasis, is a neglected tropical disease induced by schistosomes that infects hundreds of millions of people worldwide. In the life cycle of schistosomiasis, eggs are regarded as the main pathogenic factor, causing granuloma formation in the tissues and organs of hosts, which can cause severe gastrointestinal and liver granulomatous immune responses and irreversible fibrosis. Increasing evidence suggests that the gut microbiome influences the progression of schistosomiasis and plays a central role in liver disease via the gut-liver axis. When used as pharmaceutical supplements or adjunctive therapy, probiotics have shown promising results in preventing, mitigating, and even treating schistosomiasis. This review elucidates the potential mechanisms of this three-way parasite-host-microbiome interaction by summarizing schistosome-mediated intestinal flora disorders, local immune changes, and host metabolic changes, and elaborates the important role of the gut microbiome in liver disease after schistosome infection through the gut-liver axis. Understanding the mechanisms behind this interaction may aid in the discovery of probiotics as novel therapeutic targets and sustainable control strategies for schistosomiasis.
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Affiliation(s)
- Ao Hong
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, China
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Abdulrahim Umar
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Hao Chen
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, China
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Zheng Yu
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Jing Huang
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, China.
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China.
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China.
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Li G, Ma X, Xia L, Wei R, Wang X, Li C, Wang Y, He L, Ren H, Sun J, Qiu W. Integrative analysis of purine metabolites and gut microbiota in patients with neuromyelitis optica spectrum disorders after mycophenolate mofetil treatment. BMC Neurol 2023; 23:444. [PMID: 38102573 PMCID: PMC10725005 DOI: 10.1186/s12883-023-03500-3] [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: 12/02/2022] [Accepted: 12/08/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Neuromyelitis optica spectrum disorder (NMOSD) is a recurring inflammatory demyelinating disease that is commonly observed in Asian countries like China. Prior investigations have shown that mycophenolate mofetil (MMF) with better biocompatibility compared to azathioprine (AZA), and can prevent relapses of NMOSD, but the efficacy was controversially reported in different NMOSD cases. We aimed to explore the factors that weaken efficacy of MMF in NMOSD. METHODS A total of 34 NMOSD patients treated with MMF were prospectively enrolled and grouped according to the therapeutic efficacy as effective group (EG, n = 23) versus less-effective group (LEG, n = 11). The purine metabolites were profiled in serum samples and gut microbiota was analyzed using 16S rRNA sequencing with stool samples from the same patients. RESULTS Purine salvage pathway (PSP) metabolites (inosine, hypoxanthine, xanthine, guanine and uric acid) in the serum of NMOSD patients were elevated in the LEG compared to EG (p < 0.05). Additionally, the richness and microbial diversity of gut microbiota was found to be similar between EG and LEG patients. However, LEG patients had increased presence of Clostridium and Synergistes but decreased abundance of the Coprococcus genus. CONCLUSIONS The PSP metabolites and composition of the gut microbiota were changed between patients with or without optimal clinical response after MMF treatment. This may help us to understand the pharmacodynamics of MMF in NMOSD.
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Affiliation(s)
- Gong Li
- College of veterinary medicine, South China Agricultural University, Guangzhou, China
| | - Xiaoyu Ma
- Department of Neurology, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Lijuan Xia
- College of veterinary medicine, South China Agricultural University, Guangzhou, China
| | - Ran Wei
- College of veterinary medicine, South China Agricultural University, Guangzhou, China
| | - Xiran Wang
- College of veterinary medicine, South China Agricultural University, Guangzhou, China
| | - Cang Li
- College of veterinary medicine, South China Agricultural University, Guangzhou, China
| | - Yuge Wang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China
| | - Limin He
- College of veterinary medicine, South China Agricultural University, Guangzhou, China
| | - Hao Ren
- College of veterinary medicine, South China Agricultural University, Guangzhou, China
| | - Jian Sun
- College of veterinary medicine, South China Agricultural University, Guangzhou, China.
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China.
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Miao Y, Shi Z, Zhang W, Zhu L, Tang S, Chen H, Wang X, Du Q, Li S, Zhang Y, Luo W, Jin X, Fang M, Zhou H. Immune Repertoire Profiling Reveals Its Clinical Application Potential and Triggers for Neuromyelitis Optica Spectrum Disorders. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2023; 10:e200134. [PMID: 37414573 DOI: 10.1212/nxi.0000000000200134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 04/27/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND AND OBJECTIVES Neuromyelitis optica spectrum disorders (NMOSD) is widely recognized as a CNS demyelinating disease associated with AQP4-IgG (T cell-dependent antibody), and its trigger is still unclear. In addition, although the treatment of NMOSD currently can rely on traditional immunosuppressive and modulating agents, effective methods to predict the efficacy of these therapeutics are lacking. METHODS In this study, high-throughput T-cell receptor (TCR) sequencing was performed on peripheral blood from 151 pretreatment patients with AQP4-IgG+ NMOSD and 151 healthy individuals. We compared the TCR repertoire of those with NMOSD with that of healthy individuals and identified TCR clones that were significantly enriched in NMOSD. In addition, we treated 28 patients with AQP4-IgG+ NMOSD with immunosuppressants and followed up for 6 months to compare changes in NMOSD-specific TCRs (NMOSD-TCRs) before and after treatment. Moreover, we analyzed transcriptome and single-cell B-cell receptor (BCR) data from public databases and performed T-cell activation experiments using antigenic epitopes of cytomegalovirus (CMV) to further explore the triggers of AQP4-IgG+ NMOSD. RESULTS Compared with healthy controls, patients with AQP4-IgG+ NMOSD had significantly reduced diversity and shorter CDR3 length of TCRβ repertoire. Furthermore, we identified 597 NMOSD-TCRs with a high sequence similarity that have the potential to be used in the diagnosis and prognosis of NMOSD. The characterization of NMOSD-TCRs and pathology-associated clonotype annotation indicated that the occurrence of AQP4-IgG+ NMOSD may be associated with CMV infection, which was further corroborated by transcriptome and single-cell BCR analysis results from public databases and T-cell activation experiments. DISCUSSION Our findings suggest that the occurrence of AQP4-IgG+ NMOSD may be associated with CMV infection. In conclusion, our study provides new clues to uncover the causative factors of AQP4-IgG+ NMOSD and provides a theoretical foundation for treating and monitoring the disease.
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Affiliation(s)
- Yu Miao
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Ziyan Shi
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Wei Zhang
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Lin Zhu
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Shanshan Tang
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Hongxi Chen
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Xiaofei Wang
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Qin Du
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China.
| | - Shuaicheng Li
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China.
| | - Ying Zhang
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Wenqin Luo
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China
| | - Xin Jin
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China.
| | - Mingyan Fang
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China.
| | - Hongyu Zhou
- From the College of Life Sciences (M., X.J.), University of Chinese Academy of Sciences, Beijing; Department of Neurology (Z.S., L.Z., S.T., H.C., X.W., Q.D., Y.Z., W.L., M.F., H.Z.), West China Hospital, Sichuan University, Chengdu; and City University of Hong Kong (W.Z., S.L.), Shenzhen Research Institute, China.
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Dunalska A, Saramak K, Szejko N. The Role of Gut Microbiome in the Pathogenesis of Multiple Sclerosis and Related Disorders. Cells 2023; 12:1760. [PMID: 37443793 PMCID: PMC10341087 DOI: 10.3390/cells12131760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/15/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic, progressive neuroinflammatory disease with a complex pathophysiological background. A variety of diverse factors have been attributed to the propagation of inflammation and neurodegeneration in MS, mainly genetic, immunological, and environmental factors such as vitamin D deficiency, infections, or hormonal disbalance. Recently, the importance of the gut-brain axis for the development of many neurological conditions, including stroke, movement disorders, and neuroinflammatory disorders, has been postulated. The purpose of our paper was to summarize current evidence confirming the role of the gut microbiome in the pathophysiology of MS and related disorders, such as neuromyelitis optica spectrum disorder (NMO-SD). For this aim, we conducted a systematic review of the literature listed in the following databases: Medline, Pubmed, and Scopus, and were able to identify several studies demonstrating the involvement of the gut microbiome in the pathophysiology of MS and NMO-SD. It seems that the most relevant bacteria for the pathophysiology of MS are those belonging to Pseudomonas, Mycoplasma, Haemophilus, Blautia, Dorea, Faecalibacterium, Methanobrevibacter, Akkermansia, and Desulfovibrionaceae genera, while Clostridium perfringens and Streptoccocus have been demonstrated to play a role in the pathophysiology of NMO-SD. Following this line of evidence, there is also some preliminary data supporting the use of probiotics or other agents affecting the microbiome that could potentially have a beneficial effect on MS/NMO-SD symptoms and prognosis. The topic of the gut microbiome in the pathophysiology of MS is therefore relevant since it could be used as a biomarker of disease development and progression as well as a potential disease-modifying therapy.
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Affiliation(s)
- Anna Dunalska
- Department of Neurology, Medical University of Warsaw, 02-097 Warsaw, Poland;
| | - Kamila Saramak
- Department of Neurology, Hochzirl Hospital, 6170 Hochzirl, Austria;
| | - Natalia Szejko
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB T2N 1N4, Canada
- Department of Bioethics, Medical University of Warsaw, 02-091 Warsaw, Poland
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Liu L, Wang H, Chen X, Xie P. Gut microbiota: a new insight into neurological diseases. Chin Med J (Engl) 2023; 136:1261-1277. [PMID: 35830286 PMCID: PMC10309523 DOI: 10.1097/cm9.0000000000002212] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Indexed: 12/13/2022] Open
Abstract
ABSTRACT In the last decade, it has become increasingly recognized that a balanced gut microbiota plays an important role in maintaining the health of the host. Numerous clinical and preclinical studies have shown that changes in gut microbiota composition are associated with a variety of neurological diseases, e.g., Parkinson's disease, Alzheimer's disease, and myasthenia gravis. However, the underlying molecular mechanisms are complex and remain unclear. Behavioral phenotypes can be transmitted from humans to animals through gut microbiota transplantation, indicating that the gut microbiota may be an important regulator of neurological diseases. However, further research is required to determine whether animal-based findings can be extended to humans and to elucidate the relevant potential mechanisms by which the gut microbiota regulates neurological diseases. Such investigations may aid in the development of new microbiota-based strategies for diagnosis and treatment and improve the clinical management of neurological disorders. In this review, we describe the dysbiosis of gut microbiota and the corresponding mechanisms in common neurological diseases, and discuss the potential roles that the intestinal microbiome may play in the diagnosis and treatment of neurological disorders.
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Affiliation(s)
- Lanxiang Liu
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
- National Health Commission Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Haiyang Wang
- National Health Commission Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xueyi Chen
- National Health Commission Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peng Xie
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
- National Health Commission Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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9
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Wu N, Li X, Ma H, Zhang X, Liu B, Wang Y, Zheng Q, Fan X. The role of the gut microbiota and fecal microbiota transplantation in neuroimmune diseases. Front Neurol 2023; 14:1108738. [PMID: 36816570 PMCID: PMC9929158 DOI: 10.3389/fneur.2023.1108738] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 01/16/2023] [Indexed: 02/04/2023] Open
Abstract
The gut microbiota plays a key role in the function of the host immune system and neuroimmune diseases. Alterations in the composition of the gut microbiota can lead to pathology and altered formation of microbiota-derived components and metabolites. A series of neuroimmune diseases, such as myasthenia gravis (MG), multiple sclerosis (MS), neuromyelitis optica spectrum disorders (NMOSDs), Guillain-Barré syndrome (GBS), and autoimmune encephalitis (AIE), are associated with changes in the gut microbiota. Microecological therapy by improving the gut microbiota is expected to be an effective measure for treating and preventing some neuroimmune diseases. This article reviews the research progress related to the roles of gut microbiota and fecal microbiota transplantation (FMT) in neuroimmune diseases.
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Affiliation(s)
- Nan Wu
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Xizhi Li
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - He Ma
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Xue Zhang
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Bin Liu
- Institute for Metabolic and Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, China
| | - Yuan Wang
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China,*Correspondence: Yuan Wang ✉
| | - Qi Zheng
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China,Qi Zheng ✉
| | - Xueli Fan
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China,Xueli Fan ✉
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10
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Wang Y, Zhang M, Zhang L, Zhou M, Wang E. Nanoparticles loaded with circ_0086375 for suppressing the tumorigenesis of pancreatic cancer by targeting the miR-646/SLC4A4 axis. Clin Exp Metastasis 2023; 40:53-67. [PMID: 36479657 DOI: 10.1007/s10585-022-10197-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/12/2021] [Indexed: 12/12/2022]
Abstract
Nanoparticles possess the ability to adsorb and load other compounds. This study aimed to synthesize a gene carrier with polyethyleneimine (PEI), hyaluronic acid (HA) and mesoporous silica nanoparticles (MSNs) for circ_0086375 delivery to investigate the role and mechanism of circ_0086375 in pancreatic cancer (PC) progression. The expression of genes and proteins was detected by quantitative real-time polymerase chain reaction and Western blot. In vitro experiments were performed by cell counting Kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU) assay, flow cytometry, transwell assay, and wound healing assay, respectively. Dual-luciferase activity assay was used to investigate the target relationship between miR-646 and circ_0086375 or SLC4A4 (solute carrier family 4 member 4). Circ_0086375 loaded PEI/HA-based mesoporous silica nanoparticles (MSNs) were prepared, and in vivo assay was performed by using xenograft tumor model. Circ_0086375 expression was decreased in PC tissues and cells. Restoration of circ_0086375 suppressed PC cell proliferation, migration and invasion in vitro and in vivo. Mechanistically, circ_0086375 acted as a sponge for miR-646 to elevate SLC4A4 expression, which was confirmed to be a target of miR-646. The prepared circ_0086375/MSN/PEI/HA nanocomplexes showed excellent fluorescent properties and a higher cellular uptake of circ_0086375 in PC cells. Moreover, circ_0086375/MSN/PEI/HA showed relatively more anticancer effects in PC than that of circ_0086375 alone in vitro and in vivo. Delivery of circ_0086375 by nanoparticles suppresses the tumorigenicity of pancreatic cancer by miR-646/SLC4A4 axis, suggesting a new potential target for future pancreatic cancer treatment.
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Affiliation(s)
- Yunjian Wang
- Surgery Department of Hepatobiliary and Pancreatic, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 127 Dongming Road, Zhengzhou, 450008, Henan Province, China.
| | - Min Zhang
- Surgery Department of Hepatobiliary and Pancreatic, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 127 Dongming Road, Zhengzhou, 450008, Henan Province, China
| | - Luyang Zhang
- Surgery Department of Hepatobiliary and Pancreatic, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 127 Dongming Road, Zhengzhou, 450008, Henan Province, China
| | - Minghe Zhou
- Surgery Department of Hepatobiliary and Pancreatic, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 127 Dongming Road, Zhengzhou, 450008, Henan Province, China
| | - Enze Wang
- Surgery Department of Hepatobiliary and Pancreatic, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 127 Dongming Road, Zhengzhou, 450008, Henan Province, China
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11
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Carnero Contentti E, Correale J. Association between infections, the microbiome, vaccination, and neuromyelitis optica spectrum disorder. Mult Scler 2022; 29:492-501. [PMID: 35903896 DOI: 10.1177/13524585221113272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Neuromyelitis optica spectrum disorder (NMOSD) is a devastating antibody-mediated condition of the central nervous system. As in other autoimmune diseases, there is considerable evidence to suggest that NMOSD arises from complex interactions between genetic susceptibility and environmental factors. However, whether factors like aquaporin-4-Antibody production initiate NMOSD attacks, currently remains unclear, and requires further investigation. Infectious diseases have also been proposed as possible environmental factors associated with NMOSD onset or relapses, some of which are more common in Asia and Latin America than in Europe and North America, in parallel with the higher incidence of NMOSD in these geographic locations. In this review, we examine current evidence on specific infections and vaccines associated with NMOSD onset and/or attacks, as well as the most recent data on gut microbiome composition and SARS-CoV-2 infection in NMOSD patients.
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12
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Ansari MA, Nadeem A, Attia SM, Bakheet SA, Shahid M, Rehman MU, Alanazi MM, Alhamed AS, Ibrahim KE, Albekairi NA, Ahmad SF. CCR1 antagonist J-113863 corrects the imbalance of pro- and anti-inflammatory cytokines in a SJL/J mouse model of relapsing-remitting multiple sclerosis. Immunobiology 2022; 227:152245. [PMID: 35868215 DOI: 10.1016/j.imbio.2022.152245] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 06/20/2022] [Accepted: 07/06/2022] [Indexed: 11/17/2022]
Abstract
Multiple sclerosis (MS), an immune-mediated and neurodegenerative disorder of the central nervous system (CNS), is characterized by infiltrating myelin-reactive T lymphocytes and demyelinating lesions. Experimental autoimmune encephalomyelitis (EAE) is a well-established animal model used to study MS. To explore the impact of chemokine receptor CCR1 blockade in EAE and the underlying mechanisms, we used CCR1 antagonist J-113863 in PLP139-151-induced EAE in SJL/J mice. Following EAE induction, mice were treated with J-113863 (10 mg/kg) daily from day 14 until day 25. We investigated the effect of J-113863 on expression levels of GM-CSF, IL-6, IL-10, IL-27 in CD4+ spleen cells, using flow cytometry. We also analyzed the effect of J-113863 on GM-CSF, IL-6, IL-10, IL-27 mRNA and protein expression levels using RT-PCR and Western blot analysis in brain tissues. J-113863 treatment decreased the populations of CD4+GM-CSF+ and CD4+IL-6+ cells and increased CD4+IL-27+ and CD4+IL-10+ cells in the spleen. J-113863 had a suppressive effect on the mRNA and protein expression levels of GM-CSF, and IL-6 in the brain tissue. On the other hand, J-113863 treatment increased the mRNA and protein expression of IL-10 and IL-27 in the brain tissue. Our results highlighted J-113863's potential role in suppressing pro-inflammatory expression and up-regulating anti-inflammatory mediators, which could represent a beneficial alternative approach to MS treatment.
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Affiliation(s)
- Mushtaq A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mudassar Shahid
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Muneeb U Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed M Alanazi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdullah S Alhamed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid E Ibrahim
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Norah A Albekairi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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13
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Li Z, Zhou J, Liang H, Ye L, Lan L, Lu F, Wang Q, Lei T, Yang X, Cui P, Huang J. Differences in Alpha Diversity of Gut Microbiota in Neurological Diseases. Front Neurosci 2022; 16:879318. [PMID: 35837118 PMCID: PMC9274120 DOI: 10.3389/fnins.2022.879318] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
Background Neurological diseases are difficult to diagnose in time, and there is currently a lack of effective predictive methods. Previous studies have indicated that a variety of neurological diseases cause changes in the gut microbiota. Alpha diversity is a major indicator to describe the diversity of the gut microbiota. At present, the relationship between neurological diseases and the alpha diversity of the gut microbiota remains unclear. Methods We performed a systematic literature search of Pubmed and Bioproject databases up to January 2021. Six indices were used to measure alpha diversity, including community richness (observed species, Chao1 and ACE), community diversity (Shannon, Simpson), and phylogenetic diversity (PD). Random-effects meta-analyses on the standardized mean difference (SMD) were carried out on the alpha diversity indices. Subgroup analyses were performed to explore the sources of interstudy heterogeneity. Meta-analysis was performed on articles by matching the age, sex, and body mass index (BMI) of the disease group with the control group. Meanwhile, subgroup analysis was performed to control the variability of the sequencing region, platform, geographical region, instrument, and diseases. The area under the curve (AUC) value of the receiver operating characteristic (ROC) curve was calculated to assess the prediction effectiveness of the microbial alpha diversity indices. Results We conducted a meta-analysis of 24 published studies on 16S rRNA gene amplified sequencing of the gut microbiota and neurological diseases from the Pubmed and Bioproject database (patients, n = 1,469; controls, n = 1,289). The pooled estimate demonstrated that there was no significant difference in the alpha diversity between patients and controls (P < 0.05). Alpha diversity decreased only in Parkinson's disease patients, while it increased in anorexia nervosa patients compared to controls. After adjusting for age, sex, BMI, and geographical region, none of the alpha diversity was associated with neurological diseases. In terms of Illumina HiSeq 2000 and the V3-V5 sequencing region, the results showed that alpha diversity increased significantly in comparison with the controls, while decreased in Illumina HiSeq 2500. ROC curves suggested that alpha diversity could be used as a biomarker to predict the AD (Simpson, AUC= 0.769, P = 0.0001), MS (observed species, AUC= 0.737, P = 0.001), schizophrenia (Chao1, AUC = 0.739, P = 0.002). Conclusions Our review summarized the relationship between alpha diversity of the gut microbiota and neurological diseases. The alpha diversity of gut microbiota could be a promising predictor for AD, schizophrenia, and MS, but not for all neurological diseases.
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Affiliation(s)
- Zhuoxin Li
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Jie Zhou
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Hao Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- Life Science Institute, Guangxi Medical University, Nanning, China
| | - Li Ye
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Liuyan Lan
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Fang Lu
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Qing Wang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Ting Lei
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- Geriatrics Digestion Department of Internal Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiping Yang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Ping Cui
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- Life Science Institute, Guangxi Medical University, Nanning, China
- Ping Cui
| | - Jiegang Huang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, Nanning, China
- School of Public Health, Guangxi Medical University, Nanning, China
- *Correspondence: Jiegang Huang
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14
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Dong Y, Cui C. The role of short-chain fatty acids in central nervous system diseases. Mol Cell Biochem 2022; 477:2595-2607. [PMID: 35596843 DOI: 10.1007/s11010-022-04471-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 05/04/2022] [Indexed: 12/12/2022]
Abstract
Previous studies have found that intracorporal short-chain fatty acids (SCFAs), as the main metabolites of the gut microbiota, play important roles in the intestinal physiology and immune function. Along with the in-depth study of the brain-gut axis, the attention to the roles of SCFAs in central nervous system (CNS) has been raised. It has been found that SCFAs function in CNS diseases by regulating inflammatory response, neuronal apoptosis, oxidative stress, the integrity of the blood-brain barrier (BBB) and so on. Here, the changes, the effects and the mechanisms of different SCFA as individual or mixture in different CNS diseases were summarized. It is expected to lead to increased interest in SCFAs studies as an important regulator in CNS diseases and provide feasible suggestions based on SCFAs for the therapy of CNS diseases in the future.
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Affiliation(s)
- Yin Dong
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Chun Cui
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China.
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15
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Zhang H, Huang T, Yuan S, Long Y, Tan S, Niu G, Zhang P, Yang M. Circ_0020123 plays an oncogenic role in non-small cell lung cancer depending on the regulation of miR-512-3p/CORO1C. Thorac Cancer 2022; 13:1406-1418. [PMID: 35388975 PMCID: PMC9058299 DOI: 10.1111/1759-7714.14408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 12/12/2022] Open
Abstract
Background Non‐small cell lung cancer (NSCLC) is one of the leading causes responsible for cancer‐associated death globally. The aim of this study was to illustrate the function of circular RNA_0020123 (circ_0020123) in NSCLC progression and its associated mechanism. Methods RNA and protein expression was determined by reverse transcription‐quantitative polymerase chain reaction (RT‐qPCR) and western blot assay. Cell proliferation, migration, invasion, angiogenesis, apoptosis and autophagy were analyzed to assess the role of circ_0020123/microRNA‐512‐3p (miR‐512‐3p)/coronin 1C (CORO1C) axis in NSCLC cells. Tumorigenesis in nude mice was analyzed to determine the in vivo role of circ_0020123. The intermolecular target relation was confirmed by dual‐luciferase reporter and RNA immunoprecipitation (RIP) assays. Results Circ_0020123 expression was aberrantly upregulated in NSCLC tissues and cell lines. Circ_0020123 interference markedly restrained cell proliferation, migration, invasion, angiogenesis and autophagy and induced cell apoptosis of NSCLC cells. Circ_0020123 knockdown suppressed xenograft tumor growth in vivo. Circ_0020123 acted as a molecular sponge for miR‐512‐3p. Circ_0020123 silencing‐induced effects in NSCLC cells were largely reversed by the knockdown of miR‐512‐3p. miR‐512‐3p interacted with the 3′ untranslated region (3′UTR) of CORO1C. CORO1C overexpression largely reversed miR‐512‐3p accumulation‐induced influences in NSCLC cells. Circ_0020123 positively regulated CORO1C expression by sponging miR‐512‐3p in NSCLC cells. Conclusion Circ_0020123 aggravated NSCLC progression by binding to miR‐512‐3p to induce CORO1C expression, which provided new potential targets for the treatment of NSCLC.
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Affiliation(s)
- Heng Zhang
- The Affiliated Nanhua Hospital, Department of Hematology, Hengyang Medical School, University of South China, Hengyang, China
| | - Ting Huang
- The Affiliated Nanhua Hospital, Department of Pain Treatment, Hengyang Medical School, University of South China, Hengyang, China
| | - Shisi Yuan
- The Affiliated Nanhua Hospital, Department of Hematology, Hengyang Medical School, University of South China, Hengyang, China
| | - Yuxi Long
- The Affiliated Nanhua Hospital, Department of Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Shuai Tan
- The Affiliated Nanhua Hospital, Department of Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Guoliang Niu
- The Affiliated Nanhua Hospital, Department of Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Puhua Zhang
- The Affiliated Nanhua Hospital, Department of Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Meiling Yang
- The Affiliated Nanhua Hospital, Department of Oncology, Hengyang Medical School, University of South China, Hengyang, China
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16
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Li K, Zeng Z, Liu J, Pei L, Wang Y, Li A, Kulyar MFEA, Shahzad M, Mehmood K, Li J, Qi D. Effects of Short-Chain Fatty Acid Modulation on Potentially Diarrhea-Causing Pathogens in Yaks Through Metagenomic Sequencing. Front Cell Infect Microbiol 2022; 12:805481. [PMID: 35402298 PMCID: PMC8983862 DOI: 10.3389/fcimb.2022.805481] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 02/25/2022] [Indexed: 12/30/2022] Open
Abstract
Short-chain fatty acids (SCFA) are principal nutrient substrates of intestinal epithelial cells that regulate the epithelial barrier in yaks. Until now, metagenomics sequencing has not been reported in diarrheal yaks. Scarce information is available regarding the levels of fecal SCFA and diarrhea in yaks. So, our study aims to identify the potential pathogens that cause the emerging diarrhea and explore the potential relationship of short-chain fatty acids in this issue. We estimated diarrhea rate in yaks after collecting an equal number of fecal samples from affected animals. Metagenomics sequencing and quantitative analysis of SCFA were performed, which revealed 15%–25% and 5%–10% prevalence of diarrhea in yak’s calves and adults, respectively. Violin box plot also showed a higher degree of dispersion in gene abundance distribution of diarrheal yaks, as compared to normal yaks. We found 366,163 significant differential abundance genes in diarrheal yaks, with 141,305 upregulated and 224,858 downregulated genes compared with normal yaks via DESeq analysis. Metagenomics binning analysis indicated the higher significance of bin 33 (Bacteroidales) (p < 0.05) in diarrheal animals, while bin 10 (p < 0.0001), bin 30 (Clostridiales) (p < 0.05), bin 51 (Lactobacillales) (p < 0.05), bin 8 (Lachnospiraceae) (p < 0.05), and bin 47 (Bacteria) (p < 0.05) were significantly higher in normal yaks. At different levels, a significant difference in phylum (n = 4), class (n = 8), oder (n = 8), family (n = 16), genus (n = 17), and species (n = 30) was noticed, respectively. Compared with healthy yaks, acetic acid (p < 0.01), propionic acid (p < 0.01), butyric acid (p < 0.01), isobutyric acid (p < 0.01), isovaleric acid (p < 0.05), and caproic acid (p < 0.01) were all observed significantly at a lower rate in diarrheal yaks. In conclusion, besides the increased Staphylococcus aureus, Babesia ovata, Anaplasma phagocytophilum, Bacteroides fluxus, viruses, Klebsiella pneumonia, and inflammation-related bacteria, the decrease of SCFA caused by the imbalance of intestinal microbiota was potentially observed in diarrheal yaks.
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Affiliation(s)
- Kun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Kun Li, ; Jiakui Li, ; Desheng Qi,
| | - Zhibo Zeng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Juanjuan Liu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lulu Pei
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yaping Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Aoyun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | | | - Muhammad Shahzad
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Khalid Mehmood
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Kun Li, ; Jiakui Li, ; Desheng Qi,
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Kun Li, ; Jiakui Li, ; Desheng Qi,
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17
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Guo C, Huo YJ, Li Y, Han Y, Zhou D. Gut-brain axis: Focus on gut metabolites short-chain fatty acids. World J Clin Cases 2022; 10:1754-1763. [PMID: 35317140 PMCID: PMC8891794 DOI: 10.12998/wjcc.v10.i6.1754] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/27/2021] [Accepted: 01/20/2022] [Indexed: 02/06/2023] Open
Abstract
Emerging evidence supports that the gut microbiome, reconsidered as a new organ in the human body, can not only affect the local gut, but also communicate with the brain via multiple pathways related to neuroendocrine, immune, and neural pathways, thereby proposing the new concept of the microbiome-gut-brain (MGB) axis. Recently, the role of short-chain fatty acids (SCFAs), which are the main anaerobic fermented metabolites of the gut microbiota in the MGB axis, has garnered significant attention. SCFAs are involved in a broad range of central neurological diseases, including neurodegenerative diseases, cerebral vascular diseases, epilepsy, neuroimmune inflammatory diseases, and mood disorders. However, the underlying mechanism of SCFA-related distant organ crosstalk is yet to be elucidated. Herein, we summarize current knowledge regarding interactions between SCFAs and the MGB axis, as well as their protective effects against central neurological diseases.
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Affiliation(s)
- Cen Guo
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Ya-Jing Huo
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yu Li
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai Institute of Liver Disease, Shanghai 200032, China
| | - Yan Han
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Da Zhou
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai Institute of Liver Disease, Shanghai 200032, China
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18
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Cheng X, Zhou L, Li Z, Shen S, Zhao Y, Liu C, Zhong X, Chang Y, Kermode AG, Qiu W. Gut Microbiome and Bile Acid Metabolism Induced the Activation of CXCR5+ CD4+ T Follicular Helper Cells to Participate in Neuromyelitis Optica Spectrum Disorder Recurrence. Front Immunol 2022; 13:827865. [PMID: 35126400 PMCID: PMC8811147 DOI: 10.3389/fimmu.2022.827865] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/03/2022] [Indexed: 12/29/2022] Open
Abstract
From the perspective of the role of T follicular helper (Tfh) cells in the destruction of tolerance in disease progression, more attention has been paid to their role in autoimmunity. To address the role of Tfh cells in neuromyelitis optica spectrum disorder (NMOSD) recurrence, serum C-X-C motif ligand 13 (CXCL13) levels reflect the effects of the Tfh cells on B-cell-mediated humoral immunity. We evaluated the immunobiology of the CXCR5+CD4+ Tfh cells in 46 patients with NMOSD, including 37 patients with NMOSD with an annual recurrence rate (ARR) of<1 and 9 patients with NMOSD with an ARR of ≥1. Herein, we reported several key observations. First, there was a lower frequency of circulating Tfh cells in patients with an ARR of<1 than in those with an ARR of ≥1 (P< 0.05). Second, the serum CXCL13 levels were downregulated in individuals with an ARR<1 (P< 0.05), processing the ability to promote Tfh maturation and chemotaxis. Third, the level of the primary bile acid, glycoursodeoxycholic acid (GUDCA), was higher in patients with NMOSD with an ARR of<1 than in those with NMOSD with an ARR of ≥1, which was positively correlated with CXCL13. Lastly, the frequency of the Tfh precursor cells decreased in the spleen of keyhole limpet haemocyanin-stimulated animals following GUDCA intervention. These findings significantly broaden our understanding of Tfh cells and CXCL13 in NMOSD. Our data also reveal the potential mechanism of intestinal microbiota and metabolites involved in NMOSD recurrence.
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Affiliation(s)
- Xi Cheng
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Luyao Zhou
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhibin Li
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shishi Shen
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yipeng Zhao
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chunxin Liu
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaonan Zhong
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanyu Chang
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Allan G. Kermode
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Centre for Neuromuscular and Neurological Disorders, Perron Institute, The University of Western Australia, Perth, WA, Australia
- Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, WA, Australia
| | - Wei Qiu
- Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Liang T, Liu F, Ma L, Zhang Z, Liu L, Huang T, Li J, Dong W, Zhang H, Li Y, Jiang Y, Ye W, Bai S, Kang L. Migration effects on the intestinal microbiota of Tibetans. PeerJ 2021; 9:e12036. [PMID: 34721954 PMCID: PMC8530097 DOI: 10.7717/peerj.12036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 08/02/2021] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Diet, environment, and genomic context have a significant impact on humans' intestinal microbiota. Moreover, migration may be accompanied by changes in human eating habits and living environment, which could, in turn, affect the intestinal microbiota. Located in southwestern China, Tibet has an average altitude of 4,000 meters and is known as the world's roof. Xianyang is situated in the plains of central China, with an average altitude of about 400 meters. METHODS To understand the association between intestinal microbiota and population migration, we collected the fecal samples from 30 Tibetan women on the first day (as TI1st), six months (as TI2nd), and ten months (as TI3rd) following migration from Tibet to Xianyang. Fecal samples were collected from 29 individuals (belonging to the Han women) as a control. The dietary information of the Tibetan women and the Han women was gathered. We performed a 16S rRNA gene survey of the collected fecal samples using Illumina MiSeq sequencing. RESULTS Following the migration, the alpha and beta diversity of Tibetan women's intestinal microbiota appeared unaffected. Linear discriminant analysis effect size (LEfSe) analysis showed that Klebsiella, Blautia, and Veillonella are potential biomarkers at TI1st, while Proteobacteria and Enterobacteriaceae were common in TI3rd. Finally, functional prediction by phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) found no significant up-regulation or down-regulation gene pathway in the intestinal microbiota of Tibetan women after migration. The present study reveals that the higher stability in Tibetan women's intestinal microbiota was less affected by the environment and diet, indicating that Tibetan women's intestinal microbiota is relatively stable. The main limitations of the study were the small sample size and all volunteers were women.
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Affiliation(s)
- Tian Liang
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Fang Liu
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Lifeng Ma
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Zhiying Zhang
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Lijun Liu
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Tingting Huang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Jing Li
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Wenxue Dong
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Han Zhang
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Yansong Li
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Yaqiong Jiang
- Zashe Community Health Service Center, Lhasa, Tibet Autonomous Region, China
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Su Bai
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
| | - Longli Kang
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shannxi Province, China
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20
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A Role for Folate in Microbiome-Linked Control of Autoimmunity. J Immunol Res 2021; 2021:9998200. [PMID: 34104654 PMCID: PMC8159645 DOI: 10.1155/2021/9998200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/04/2021] [Indexed: 02/03/2023] Open
Abstract
The microbiome exerts considerable control over immune homeostasis and influences susceptibility to autoimmune and autoinflammatory disease (AD/AID) such as inflammatory bowel disease (IBD), multiple sclerosis (MS), type 1 diabetes (T1D), psoriasis, and uveitis. In part, this is due to direct effects of the microbiome on gastrointestinal (GI) physiology and nutrient transport, but also to indirect effects on immunoregulatory controls, including induction and stabilization of T regulatory cells (T reg). Secreted bacterial metabolites such as short-chain fatty acids (SCFA) are under intense investigation as mediators of these effects. In contrast, folate (vitamin B9), an essential micronutrient, has attracted less attention, possibly because it exerts global physiological effects which are difficult to differentiate from specific effects on the immune system. Here, we review the role of folate in AD/AID with some emphasis on sight-threatening autoimmune uveitis. Since folate is required for the generation and maintenance of T reg , we propose that one mechanism for microbiome-based control of AD/AID is via folate-dependent induction of GI tract T reg , particularly colonic T reg, via anergic T cells (T an). Hence, folate supplementation has potential prophylactic and/or therapeutic benefit in AID/AD.
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21
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Mirzaei R, Bouzari B, Hosseini-Fard SR, Mazaheri M, Ahmadyousefi Y, Abdi M, Jalalifar S, Karimitabar Z, Teimoori A, Keyvani H, Zamani F, Yousefimashouf R, Karampoor S. Role of microbiota-derived short-chain fatty acids in nervous system disorders. Biomed Pharmacother 2021; 139:111661. [PMID: 34243604 DOI: 10.1016/j.biopha.2021.111661] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/14/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023] Open
Abstract
During the past decade, accumulating evidence from the research highlights the suggested effects of bacterial communities of the human gut microbiota and their metabolites on health and disease. In this regard, microbiota-derived metabolites and their receptors, beyond the immune system, maintain metabolism homeostasis, which is essential to maintain the host's health by balancing the utilization and intake of nutrients. It has been shown that gut bacterial dysbiosis can cause pathology and altered bacterial metabolites' formation, resulting in dysregulation of the immune system and metabolism. The short-chain fatty acids (SCFAs), such as butyrate, acetate, and succinate, are produced due to the fermentation process of bacteria in the gut. It has been noted remodeling in the gut microbiota metabolites associated with the pathophysiology of several neurological disorders, such as Alzheimer's disease, multiple sclerosis, Parkinson's disease, amyotrophic lateral sclerosis, stress, anxiety, depression, autism, vascular dementia, schizophrenia, stroke, and neuromyelitis optica spectrum disorders, among others. This review will discuss the current evidence from the most significant studies dealing with some SCFAs from gut microbial metabolism with selected neurological disorders.
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Affiliation(s)
- Rasoul Mirzaei
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran; Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
| | - Behnaz Bouzari
- Department of Pathology, Firouzgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Reza Hosseini-Fard
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Mazaheri
- Department of Physiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Yaghoub Ahmadyousefi
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Hamadan University of Medical Sciences, Hamadan, Iran; Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Milad Abdi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Student Research Committee, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saba Jalalifar
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Karimitabar
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Teimoori
- Department of Virology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Hossein Keyvani
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farhad Zamani
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Rasoul Yousefimashouf
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran; Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
| | - Sajad Karampoor
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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22
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Spichak S, Bastiaanssen TFS, Berding K, Vlckova K, Clarke G, Dinan TG, Cryan JF. Mining microbes for mental health: Determining the role of microbial metabolic pathways in human brain health and disease. Neurosci Biobehav Rev 2021; 125:698-761. [PMID: 33675857 DOI: 10.1016/j.neubiorev.2021.02.044] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/12/2022]
Abstract
There is increasing knowledge regarding the role of the microbiome in modulating the brain and behaviour. Indeed, the actions of microbial metabolites are key for appropriate gut-brain communication in humans. Among these metabolites, short-chain fatty acids, tryptophan, and bile acid metabolites/pathways show strong preclinical evidence for involvement in various aspects of brain function and behaviour. With the identification of neuroactive gut-brain modules, new predictive tools can be applied to existing datasets. We identified 278 studies relating to the human microbiota-gut-brain axis which included sequencing data. This spanned across psychiatric and neurological disorders with a small number also focused on normal behavioural development. With a consistent bioinformatics pipeline, thirty-five of these datasets were reanalysed from publicly available raw sequencing files and the remainder summarised and collated. Among the reanalysed studies, we uncovered evidence of disease-related alterations in microbial metabolic pathways in Alzheimer's Disease, schizophrenia, anxiety and depression. Amongst studies that could not be reanalysed, many sequencing and technical limitations hindered the discovery of specific biomarkers of microbes or metabolites conserved across studies. Future studies are warranted to confirm our findings. We also propose guidelines for future human microbiome analysis to increase reproducibility and consistency within the field.
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Affiliation(s)
- Simon Spichak
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Kirsten Berding
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Klara Vlckova
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Institute, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Institute, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland.
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Jiang Y, Yuan Z, Shen Y, Rosa BA, Martin J, Cao S, Zhou Y, Mitreva M, Cao J. Alteration of the fecal microbiota in Chinese patients with Schistosoma japonicum infection. ACTA ACUST UNITED AC 2021; 28:1. [PMID: 33416489 PMCID: PMC7792497 DOI: 10.1051/parasite/2020074] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022]
Abstract
Schistosoma japonicum infection causes pathological injury to the host. Multiple studies have shown that intestinal helminth infection causes dysbiosis for the gut microbial community and impacts host immunology. However, the effect of acute S. japonicum infection on the gut microbiome structure (abundance and diversity) is still unclear. We collected fecal samples from healthy and infected patients from a single hospital in Hunan Province, China. The bacterial community was analyzed using 16S ribosomal RNA gene sequencing of the V4 hypervariable region using the HiSeq platform. Compared with healthy subjects, infected patients exhibited an increase in relative abundance of the TM7 phylum. At the genus level, there were seven differentially abundant genera between groups. The most significant finding was a Bacteroides enterotype in patients with acute schistosomiasis. These results suggest that S. japonicum infection has a significant effect on microbiome composition characterized by a higher abundance of the TM7 phylum and development of a Bacteroides enterotype.
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Affiliation(s)
- Yanyan Jiang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, 200025 Shanghai, PR China - Chinese Center for Tropical Diseases Research, 200025 Shanghai, PR China - World Health Organization Collaborating Centre for Tropical Diseases, 200025 Shanghai, PR China - Key Laboratory of Parasite and Vector Biology, National Health Commission of the People's Republic of China, 200025 Shanghai, PR China
| | - Zhongying Yuan
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, 200025 Shanghai, PR China - Chinese Center for Tropical Diseases Research, 200025 Shanghai, PR China - World Health Organization Collaborating Centre for Tropical Diseases, 200025 Shanghai, PR China - Key Laboratory of Parasite and Vector Biology, National Health Commission of the People's Republic of China, 200025 Shanghai, PR China
| | - Yujuan Shen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, 200025 Shanghai, PR China - Chinese Center for Tropical Diseases Research, 200025 Shanghai, PR China - World Health Organization Collaborating Centre for Tropical Diseases, 200025 Shanghai, PR China - Key Laboratory of Parasite and Vector Biology, National Health Commission of the People's Republic of China, 200025 Shanghai, PR China
| | - Bruce A Rosa
- McDonnell Genome Institute, Washington University in St Louis, St Louis, 63001 MO, USA
| | - John Martin
- McDonnell Genome Institute, Washington University in St Louis, St Louis, 63001 MO, USA
| | - Shengkui Cao
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, 200025 Shanghai, PR China - Chinese Center for Tropical Diseases Research, 200025 Shanghai, PR China - World Health Organization Collaborating Centre for Tropical Diseases, 200025 Shanghai, PR China - Key Laboratory of Parasite and Vector Biology, National Health Commission of the People's Republic of China, 200025 Shanghai, PR China
| | - Yanjiao Zhou
- Department of Medicine, UConn Health, Farmington, 06023 CT, USA
| | - Makedonka Mitreva
- McDonnell Genome Institute, Washington University in St Louis, St Louis, 63001 MO, USA - Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St Louis, 63001 MO, USA
| | - Jianping Cao
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, 200025 Shanghai, PR China - Chinese Center for Tropical Diseases Research, 200025 Shanghai, PR China - World Health Organization Collaborating Centre for Tropical Diseases, 200025 Shanghai, PR China - Key Laboratory of Parasite and Vector Biology, National Health Commission of the People's Republic of China, 200025 Shanghai, PR China
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Pandit L, Cox LM, Malli C, D'Cunha A, Rooney T, Lokhande H, Willocq V, Saxena S, Chitnis T. Clostridium bolteae is elevated in neuromyelitis optica spectrum disorder in India and shares sequence similarity with AQP4. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2021; 8:e907. [PMID: 33148687 PMCID: PMC7643530 DOI: 10.1212/nxi.0000000000000907] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 09/16/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To understand the role of gut microbiome in influencing the pathogenesis of neuromyelitis optica spectrum disorders (NMOSDs) among patients of south Indian origin. METHODS In this case-control study, stool and blood samples were collected from 39 patients with NMOSD, including 17 with aquaporin 4 IgG antibodies (AQP4+) and 36 matched controls. 16S ribosomal RNA (rRNA) sequencing was used to investigate the gut microbiome. Peripheral CD4+ T cells were sorted in 12 healthy controls, and in 12 patients with AQP4+ NMOSD, RNA was extracted and immune gene expression was analyzed using the NanoString nCounter human immunology kit code set. RESULTS Microbiota community structure (beta diversity) differed between patients with AQP4+ NMOSD and healthy controls (p < 0.001, pairwise PERMANOVA test). Linear discriminatory analysis effect size identified several members of the microbiota that were altered in patients with NMOSD, including an increase in Clostridium bolteae (effect size 4.23, p 0.00007). C bolteae was significantly more prevalent (p = 0.02) among patients with AQP4-IgG+ NMOSD (n = 8/17 subjects) compared with seronegative patients (n = 3/22) and was absent among healthy stool samples. C bolteae has a highly conserved glycerol uptake facilitator and related aquaporin protein (p59-71) that shares sequence homology with AQP4 peptide (p92-104), positioned within an immunodominant (AQP4 specific) T-cell epitope (p91-110). Presence of C bolteae correlated with expression of inflammatory genes associated with both innate and adaptive immunities and particularly involved in plasma cell differentiation, B cell chemotaxis, and Th17 activation. CONCLUSION Our study described elevated levels of C bolteae associated with AQP4+ NMOSD among Indian patients. It is possible that this organism may be causally related to the immunopathogenesis of this disease in susceptible individuals.
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Affiliation(s)
- Lekha Pandit
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts.
| | - Laura M Cox
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Chaithra Malli
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Anitha D'Cunha
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Timothy Rooney
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Hrishikesh Lokhande
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Valerie Willocq
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Shrishti Saxena
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Tanuja Chitnis
- From the Nitte University (L.P., C.M., A.D.), Mangalore, India; and Ann Romney Center for Neurological Diseases (L.M.C., T.R., H.L., V.W., S.S., T.C.), Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
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Potential role of the gut microbiota in neuromyelitis optica spectrum disorder: Implication for intervention. J Clin Neurosci 2020; 82:193-199. [PMID: 33257156 DOI: 10.1016/j.jocn.2020.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/22/2020] [Accepted: 11/01/2020] [Indexed: 12/19/2022]
Abstract
The gut microbiota plays an important role in the occurrence and development of neuroimmunological diseases. Neuromyelitis optica spectrum disorder (NMOSD) is an autoimmune disease of the central nervous system that is characterized by the peripheral production of the disease-specific serum autoantibody aquaporin-4 (AQP4)-IgG. Recently, accumulating evidence has provided insights into the associations of gut microbiota dysbiosis and intestinal mucosal barrier destruction with NMOSD, but the underlying pathogenesis remains unclear. Thus, a microbiota intervention might be a potential therapeutic strategy for NMOSD by regulating the gut microbiota, repairing the intestinal mucosal barrier, and modulating intestinal immunity and peripheral immunity.
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Moon J, Yoon CH, Choi SH, Kim MK. Can Gut Microbiota Affect Dry Eye Syndrome? Int J Mol Sci 2020; 21:E8443. [PMID: 33182758 PMCID: PMC7697210 DOI: 10.3390/ijms21228443] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 02/07/2023] Open
Abstract
Using metagenomics, continuing evidence has elicited how intestinal microbiota trigger distant autoimmunity. Sjögren's syndrome (SS) is an autoimmune disease that affects the ocular surface, with frequently unmet therapeutic needs requiring new interventions for dry eye management. Current studies also suggest the possible relation of autoimmune dry eye with gut microbiota. Herein, we review the current knowledge of how the gut microbiota interact with the immune system in homeostasis as well as its influence on rheumatic and ocular autoimmune diseases, and compare their characteristics with SS. Both rodent and human studies regarding gut microbiota in SS and environmental dry eye are explored, and the effects of prebiotics and probiotics on dry eye are discussed. Recent clinical studies have commonly observed a correlation between gut dysbiosis and clinical manifestations of SS, while environmental dry eye portrays characteristics in between normal and autoimmune. Moreover, a decrease in both the Firmicutes/Bacteroidetes ratio and genus Faecalibacterium have most commonly been observed in SS subjects. The presumable pathways forming the "gut dysbiosis-ocular surface-lacrimal gland axis" are introduced. This review may provide perspectives into the link between the gut microbiome and dry eye, enhance our understanding of the pathogenesis in autoimmune dry eye, and be useful in the development of future interventions.
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Affiliation(s)
- Jayoon Moon
- Department of Ophthalmology, College of Medicine, Seoul National University, Seoul 03080, Korea; (J.M.); (C.H.Y.)
- Seoul Artificial Eye Center, Laboratory of Ocular Regenerative Medicine and Immunology, Seoul National University Hospital Biomedical Research Institute, Seoul 03082, Korea;
| | - Chang Ho Yoon
- Department of Ophthalmology, College of Medicine, Seoul National University, Seoul 03080, Korea; (J.M.); (C.H.Y.)
- Seoul Artificial Eye Center, Laboratory of Ocular Regenerative Medicine and Immunology, Seoul National University Hospital Biomedical Research Institute, Seoul 03082, Korea;
| | - Se Hyun Choi
- Seoul Artificial Eye Center, Laboratory of Ocular Regenerative Medicine and Immunology, Seoul National University Hospital Biomedical Research Institute, Seoul 03082, Korea;
- Department of Ophthalmology, Hallym University Sacred Heart Hospital, Anyang-si 14068, Korea
| | - Mee Kum Kim
- Department of Ophthalmology, College of Medicine, Seoul National University, Seoul 03080, Korea; (J.M.); (C.H.Y.)
- Seoul Artificial Eye Center, Laboratory of Ocular Regenerative Medicine and Immunology, Seoul National University Hospital Biomedical Research Institute, Seoul 03082, Korea;
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Ma X, Ma L, Wang Z, Liu Y, Long L, Ma X, Chen H, Chen Z, Lin X, Si L, Chen X. Clinical Features and Gut Microbial Alterations in Anti-leucine-rich Glioma-Inactivated 1 Encephalitis-A Pilot Study. Front Neurol 2020; 11:585977. [PMID: 33193049 PMCID: PMC7655127 DOI: 10.3389/fneur.2020.585977] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/16/2020] [Indexed: 12/12/2022] Open
Abstract
Anti-leucine-rich glioma-inactivated 1 (anti-LGI1) encephalitis is a rare autoimmune encephalitis (AE). We investigated the clinical features and gut microbial alterations of anti-LGI1 encephalitis. Fifteen patients newly diagnosed with anti-LGI1 encephalitis were recruited in the study prior to the administration of immunotherapy. The control group contains 25 well-matched healthy controls (HCs). All participants were Han Chinese from South China. Their clinical data and fecal samples were collected. The diversity and composition of gut microbiota were analyzed by 16S ribosomal RNA (16S rRNA) gene sequencing. The results showed that anti-LGI1 encephalitis was characterized by cognitive impairment, faciobrachial dystonic seizures, hyponatremia, and psychiatric symptoms. Abnormal EEG and brain MRI were presented in 9 and 10 patients, respectively. Compared to HCs, the anti-LGI1 encephalitis patients exhibited a decreased microbial diversity and an altered overall composition of gut microbiome. At the phylum level, anti-LGI1 encephalitis patients exhibited a higher abundance of Proteobacteria and a lower abundance of Firmicutes. The alterations in the phylum level were associated with autoimmune and inflammatory disorders. At the genus level, there was an increase in Sphingomonas, Anaerofustis, Succinvibrio, Clostridium, and SMB53 (genera related to movement disorders, psychiatric diseases, and with proinflammatory effects). However, the Faecalibacterium, Roseburia, Lachnospira, Ruminococcus, and Blautia [genera with ability to produce short-chain fatty acids (SCFAs)] were obviously reduced in the patient group. Our results suggest that anti-LGI1 encephalitis is characterized by special clinical features and is accompanied by alterations in specific gut microbiota. For the limited sample size and non-applicability to other populations, further studies are warranted to explore the relationships between gut microbiota and anti-LGI1 encephalitis.
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Affiliation(s)
- Xueying Ma
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lili Ma
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhanhang Wang
- Department of Neurology, Guangdong 999 Brain Hospital, Guangzhou, China
| | - Yingying Liu
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ling Long
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaomeng Ma
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hao Chen
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaoyu Chen
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiuli Lin
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lei Si
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaohong Chen
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Ma X, Kermode AG, Hu X, Qiu W. NMOSD acute attack: Understanding, treatment and innovative treatment prospect. J Neuroimmunol 2020; 348:577387. [PMID: 32987231 DOI: 10.1016/j.jneuroim.2020.577387] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/25/2020] [Accepted: 09/05/2020] [Indexed: 01/09/2023]
Abstract
Neuromyelitis optica spectrum disorder (NMOSD) is a group of severe inflammatory demyelinating disorders of the central nervous system that involves the optic nerve and spinal cord. Currently the therapeutic options for an acute attack in NMOSD are limited and rarely characterized in clinical studies. This review discussed the overall characteristics of acute attack of NMOSD, related risk factor, prognosis and management. Considering the huge unmet needs and the emergence of new therapeutic targets, we also reviewed innovative treatments that might alleviate attack damage, along with the challenges to evaluate new drug for acute attack in NMOSD.
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Affiliation(s)
- Xiaoyu Ma
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Allan G Kermode
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Centre for Neuromuscular and Neurological Disorders, University of Western Australia, Perth, WA, Australia; Department of Neurology, Sir Charles Gairdner Hospital, Queen Elizabeth II Medical Centre, Perth, WA, Australia; Institute of Immunology and Infectious Diseases, Murdoch University, Perth, WA, Australia
| | - Xueqiang Hu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
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Cui C, Tan S, Tao L, Gong J, Chang Y, Wang Y, Fan P, He D, Ruan Y, Qiu W. Intestinal Barrier Breakdown and Mucosal Microbiota Disturbance in Neuromyelitis Optical Spectrum Disorders. Front Immunol 2020; 11:2101. [PMID: 32983166 PMCID: PMC7492665 DOI: 10.3389/fimmu.2020.02101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 08/03/2020] [Indexed: 12/12/2022] Open
Abstract
Background and Purpose The mechanism underlying the pathology of neuromyelitis optica spectrum disorders (NMOSD) remains unclear even though antibodies to the water channel protein aquaporin-4 (AQP4) on astrocytes play important roles. Our previous study showed that dysbiosis occurred in the fecal microbiota of NMOSD patients. In this study, we further investigated whether the intestinal barrier and mucosal flora balance are also interrupted in NMOSD patients. Methods Sigmoid mucosal biopsies were collected by endoscopy from six patients with NMOSD and compared with samples from five healthy control (HC) individuals. These samples were processed for electron microscopy and immunohistochemistry to investigate changes in ultrastructure and in the number and size of intestinal inflammatory cells. Changes in mucosal flora were also analyzed by high-throughput 16S ribosomal RNA gene amplicon sequencing. Results The results from bacterial rRNA gene sequencing showed that bacterial diversity was decreased, but Streptococcus and Granulicatella were abundant in the colonic mucosa specimens of NMOSD patients compared to the HC individuals. The intercellular space between epithelia of the colonic mucosa was wider in NMOSD patients compared to the HC subjects (p < 0.01), and the expression of tight junction proteins [occludin, claudin-1 and zonula occludens-1 (ZO-1)] in NMOSD patients significantly decreased compared to that in the HC subjects. We also found numerous activated macrophages with many inclusions within the cytoplasm, mast cells with many particles in their cytoplasm, and enlarged plasma cells with rich developed rough endoplasmic reticulum in the lamina propria of the mucosa of the patients with NMOSD. Quantitative analysis showed that the percentages of small CD38+ and CD138+ cells (plasma cells) were lower, but the percentage of larger plasma cells was higher in NMOSD patients. Conclusion The present study demonstrated that the intestinal barrier was disrupted in the patients with NMOSD, accompanied by dysbiosis and inflammatory activation of the gut. The mucosal microbiota imbalance and inflammatory responses might allow pathogens to cross the damaged intestinal barrier and participate in pathological process in NMOSD. However, further study on the pathological mechanism of NMOSD underlying gut dysbiosis is warranted in the future.
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Affiliation(s)
- Chunping Cui
- Multiple Sclerosis Center, Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sha Tan
- Multiple Sclerosis Center, Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Li Tao
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Junli Gong
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanyu Chang
- Multiple Sclerosis Center, Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuge Wang
- Multiple Sclerosis Center, Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ping Fan
- Multiple Sclerosis Center, Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dan He
- Department of Pathology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yiwen Ruan
- GHM Institute of CNS Regeneration, Jinan University, Guangzhou, China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Wei Qiu
- Multiple Sclerosis Center, Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Xu R, Tan C, He Y, Wu Q, Wang H, Yin J. Dysbiosis of Gut Microbiota and Short-Chain Fatty Acids in Encephalitis: A Chinese Pilot Study. Front Immunol 2020; 11:1994. [PMID: 32973805 PMCID: PMC7468513 DOI: 10.3389/fimmu.2020.01994] [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: 05/15/2020] [Accepted: 07/23/2020] [Indexed: 12/14/2022] Open
Abstract
Background Encephalitis, the inflammation of the brain, may be caused by an infection or an autoimmune reaction. However, few researches were focused on the gut microbiome characteristics in encephalitis patients. Methods A prospective observational study was conducted in an academic hospital in Guangzhou from February 2017 to February 2018. Patients with encephalitis were recruited. Fecal and serum samples were collected at admission. Healthy volunteers were enrolled from a community. Disease severity scores were recorded by specialized physicians, including Glasgow Coma Scale (GCS), Sequential Organ Failure Assessment (SOFA), and Acute Physiology and Chronic Health Evaluation-II (APACHE-II). 16S rRNA sequence was performed to analyze the gut microbiome, then the α-diversities and β-diversities were estimated. Short-chain fatty acids (SCFAs) were extracted from fecal samples and determined by gas chromatography-mass spectrometry. Serum D-lactate (D-LA), intestinal fatty acid-binding protein (iFABP), lipopolysaccharide (LPS), and lipopolysaccharide-binding protein (LBP) were measured by enzyme-linked immunosorbent assay (ELISA). The associations among microbial indexes and clinical parameters were evaluated by Spearman correlation analysis. Results In total, twenty-eight patients were recruited for analysis (median age 46 years; 82.1% male; median GCS 6.5; median SOFA 6.5; median APACHE-II 14.5). Twenty-eight age- and sex-matched healthy subjects were selected as controls. The β-diversities between patients and healthy subjects were significantly different. The α-diversities did not show significant differences between these two groups. In the patient group, the abundances of Bacteroidetes, Proteobacteria, and Bacilli were significantly enriched. Accordingly, fecal SCFA levels were decreased in the patient group, whereas serum D-LA, iFABP, LPS, and LBP levels were increased compared with those in healthy subjects. Correlation analyses showed that disease severity had positive correlations with Proteobacteria and Akkermansia but negative correlations with Firmicutes, Clostridia, and Ruminococcaceae abundances. The cerebrospinal fluid albumin-to-serum albumin ratio (CSAR) was positively related to the α-diversity but negatively correlated with the fecal butyrate concentration. Conclusion Gut microbiota disruption was observed in encephalitis patients, which manifested as pathogen dominance and health-promoting commensal depletion. Disease severity and brain damage may have associations with the gut microbiota or its metabolites. The causal relationship should be further explored in future studies.
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Affiliation(s)
- Ruoting Xu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chuhong Tan
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yan He
- Microbiome Medicine Center, Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qiheng Wu
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Huidi Wang
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jia Yin
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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31
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Chen H, Chen Z, Shen L, Wu X, Ma X, Lin D, Zhang M, Ma X, Liu Y, Wang Z, Zhang Y, Kuang Z, Lu Z, Li X, Ma L, Lin X, Si L, Chen X. Fecal microbiota transplantation from patients with autoimmune encephalitis modulates Th17 response and relevant behaviors in mice. Cell Death Discov 2020; 6:75. [PMID: 32821439 PMCID: PMC7419566 DOI: 10.1038/s41420-020-00309-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/17/2020] [Accepted: 07/22/2020] [Indexed: 12/11/2022] Open
Abstract
The significance of the microbiota-gut-brain axis has been increasingly recognized as a major modulator of autoimmunity. Here, we aim to characterize the gut microbiota of a large cohort of treatment-naïve anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis patients relative to that of healthy controls (HCs). Relative to HCs, anti-NMDAR encephalitis patients had a decreased microbiome alpha-diversity index, marked disturbances of gut microbial composition and intestinal permeability damage. Disturbed microbiota in anti-NMDAR encephalitis patients might be linked with different clinical characteristics. Imputed KEGG analysis revealed perturbations of functional modules in the gut microbiomes of anti-NMDAR encephalitis. Compared to HCs, microbiota-depleted mice receiving fecal microbiota transplantation (FMT) from anti-NMDAR encephalitis patients had hypersensitivity and cognitive impairment. Furthermore, anti-NMDAR encephalitis FMT mice showed altered T cells in the spleen and small intestine lamina propria with an increased Th17 cells. Overall, this study first suggests that the anti-NMDAR encephalitis microbiome itself can influence neurologic, Th17 response and behavioral function. The gut microbiota is a potential therapeutic target for anti-NMDAR encephalitis.
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Affiliation(s)
- Hao Chen
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Zhaoyu Chen
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Liping Shen
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Xiuhua Wu
- Department of Psychiatry, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xueying Ma
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Dengna Lin
- Department of Infectious Diseases, Third Affiliated Hospital, 510630 Guangzhou, China
| | - Man Zhang
- School of Environmental and Biological Sciences, The State University of New Jersey, New Brunswick, NJ USA
| | - Xiaomeng Ma
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Yingying Liu
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Zhanhang Wang
- Department of Neurology, Guangdong 999 Brain Hospital, Guangzhou, China
| | - Yuefeng Zhang
- Department of Neurology, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zuying Kuang
- Department of Neurology, Guangdong 999 Brain Hospital, Guangzhou, China
| | - Zhiwei Lu
- Department of Neurology, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xuefei Li
- Yanke Biotechnology Co., Guangzhou, China
| | - Lili Ma
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Xiuli Lin
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Lei Si
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
| | - Xiaohong Chen
- Department of Neurology and Multiple Sclerosis Research Center, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, 510630 Guangzhou, Guangdong Province China
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Zhang J, Xu YF, Wu L, Li HF, Wu ZY. Characteristic of gut microbiota in southeastern Chinese patients with neuromyelitis optica spectrum disorders. Mult Scler Relat Disord 2020; 44:102217. [PMID: 32534438 DOI: 10.1016/j.msard.2020.102217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Emerging evidence indicated that gut microbiota might play an essential role in the pathogenesis of neuromyelitis optica spectrum disorders (NMOSD). The results are highly heterogeneous and mainly conducted in the patients of NMOSD AQP4+ status. METHODS 16S ribosomal RNA gene sequencing targeting V3-V4 region was performed on fecal samples of 50 individuals, subdivided into NMOSD AQP4+ group (P1, n=14) and NMOSD AQP4- group (P2, n=8), and healthy controls (C, n=28). RESULTS Fecal microbiome analyses revealed that gut microbial diversity and composition were distinctly different between NMOSD patients and controls. We also found that amounts of specific genera were correlated with disease-specific parameters. Remarkably, 9 genus-level microbial biomarkers were identified and acquired an area under the curve (AUC) of 0.97 between NMOSD patients and controls. CONCLUSIONS This study is the first to characterize gut microbiota features in NMOSD patients of AQP4+ status and AQP4- status. Further analysis revealed that both AQP4+ and AQP4- groups had certain unique microbiota profiles and metabolic pathways. Taking together, these findings not only support for NMOSD to the growing list of diseases associated with gut microbial alterations, but also suggest that the gut microbiota biomarkers may be a target for individualized treatment in future.
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Affiliation(s)
- Juan Zhang
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, and Key Laboratory of Medical Neurobiology of Zhejiang Province, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou310009, China
| | - Yong-Feng Xu
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, and Key Laboratory of Medical Neurobiology of Zhejiang Province, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou310009, China
| | - Lei Wu
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, and Key Laboratory of Medical Neurobiology of Zhejiang Province, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou310009, China
| | - Hong-Fu Li
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, and Key Laboratory of Medical Neurobiology of Zhejiang Province, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou310009, China
| | - Zhi-Ying Wu
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, and Key Laboratory of Medical Neurobiology of Zhejiang Province, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou310009, China.
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Zhou Y, Cui C, Ma X, Luo W, Zheng SG, Qiu W. Nuclear Factor κB (NF-κB)-Mediated Inflammation in Multiple Sclerosis. Front Immunol 2020; 11:391. [PMID: 32265906 PMCID: PMC7105607 DOI: 10.3389/fimmu.2020.00391] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 02/19/2020] [Indexed: 12/18/2022] Open
Abstract
The nuclear factor κB (NF-κB) signaling cascade has been implicating in a broad range of biological processes, including inflammation, cell proliferation, differentiation, and apoptosis. The past three decades have witnessed a great progress in understanding the impact of aberrant NF-κB regulation on human autoimmune and inflammatory disorders. In this review, we discuss how aberrant NF-κB activation contributes to multiple sclerosis, a typical inflammatory demyelinating disease of the central nervous system, and its involvement in developing potential therapeutic targets.
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Affiliation(s)
- Yifan Zhou
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chunping Cui
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoyu Ma
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenjing Luo
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Song Guo Zheng
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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B cells in autoimmune and neurodegenerative central nervous system diseases. Nat Rev Neurosci 2019; 20:728-745. [DOI: 10.1038/s41583-019-0233-2] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2019] [Indexed: 12/16/2022]
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Identifying the culprits in neurological autoimmune diseases. J Transl Autoimmun 2019; 2:100015. [PMID: 32743503 PMCID: PMC7388404 DOI: 10.1016/j.jtauto.2019.100015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/27/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022] Open
Abstract
The target organ of neurological autoimmune diseases (NADs) is the central or peripheral nervous system. Multiple sclerosis (MS) is the most common NAD, whereas Guillain-Barré syndrome (GBS), myasthenia gravis (MG), and neuromyelitis optica (NMO) are less common NADs, but the incidence of these diseases has increased exponentially in the last few years. The identification of a specific culprit in NADs is challenging since a myriad of triggering factors interplay with each other to cause an autoimmune response. Among the factors that have been associated with NADs are genetic susceptibility, epigenetic mechanisms, and environmental factors such as infection, microbiota, vitamins, etc. This review focuses on the most studied culprits as well as the mechanisms used by these to trigger NADs. Neurological autoimmune diseases are caused by a complex interaction between genes, environmental factors, and epigenetic deregulation. Infectious agents can cause an autoimmune reaction to myelin epitopes through molecular mimicry and/or bystander activation. Gut microbiota dysbiosis contributes to neurological autoimmune diseases. Smoking increases the risk of NADs through inflammatory signaling pathways, oxidative stress, and Th17 differentiation. Deficiency in vitamin D favors NAD development through direct damage to the central and peripheral nervous system.
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Chang VTW, Chang HM. Review: Recent advances in the understanding of the pathophysiology of neuromyelitis optica spectrum disorder. Neuropathol Appl Neurobiol 2019; 46:199-218. [PMID: 31353503 DOI: 10.1111/nan.12574] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 07/17/2019] [Accepted: 07/24/2019] [Indexed: 12/11/2022]
Abstract
Neuromyelitis optica is an autoimmune inflammatory disorder of the central nervous system that preferentially targets the spinal cord and optic nerve. Following the discovery of circulating antibodies against the astrocytic aquaporin 4 (AQP4) water channel protein, recent studies have expanded our knowledge of the unique complexities of the pathogenesis of neuromyelitis optica and its relationship with the immune response. This review describes and summarizes the recent advances in our understanding of the molecular mechanisms underlying neuromyelitis optica disease pathology and examines their potential as therapeutic targets. Additionally, we update the most recent research by proposing major unanswered questions regarding how peripheral AQP4 antibodies are produced and their entry into the central nervous system, the causes of AQP4-IgG-seronegative disease, why peripheral AQP4-expressing organs are spared from damage, and the impact of this disease on pregnancy.
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Affiliation(s)
- V T W Chang
- St George's, University of London, London, UK
| | - H-M Chang
- Department of Obstetrics and Gynaecology, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, BC, Canada
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Rezaeimanesh N, Razeghi Jahromi S, Ghorbani Z, Beladi Moghadam N, Hekmatdoost A, Naser Moghadasi A, Azimi AR, Sahraian MA. The association between dietary sugar intake and neuromyelitis optica spectrum disorder: A case-control study. Mult Scler Relat Disord 2019; 31:112-117. [PMID: 30978652 DOI: 10.1016/j.msard.2019.03.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/04/2019] [Accepted: 03/31/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Neuromyelitis optica spectrum disorder (NMOSD) is an uncommon autoimmune disease of the central nerves system (CNS) by inflammatory nature. The effects of high dietary sugar intake on inflammation and dysbiosis have been received more attention in recent years. The aim of the present study was to investigate the association between various types of dietary sugar intake and NMOSD odds and clinical features. METHOD The current case-control study was conducted among 70 patients with definite NMOSD diagnosis based on 2015 international consensus criteria and 164 hospital-based controls. Demographic and anthropometric information in all participants and disease characteristics just in case group were obtained. Dietary data during the past year of study attendance was collected by a validated 168-item food frequency questionnaire. Participants were stratified into 3 tertiles according to each type of sugar intake and the third tertile considered as reference in multivariate regression models. The correlation between dietary sugar and disease features were analyzed using Pearson correlation test. RESULTS The mean ± SD of total sugar intake increased from 80.73 ± 17.71 to 208.71 ± 57.93 g/day across tertiles of total sugar intake. In fully adjusted model, lower intake of sugar was associates with decreased odds of NMOSD in the first tertile vs third tertile by ORs of: 0.02(CI:0.00-0.08; p-for-trend:0.00), 0.02(CI:0.00-0.10; p-for-trend:0.00), 0.23(CI:0.08-0.61; p-for-trend:0.00), 0.19(CI:0.06-0.58; p-for-trend:0.00) and 0.16(CI:0.05-0.51; p-for-trend:0.00) for glucose, fructose, galactose, lactose and sucrose, respectively. The odds of NMOSD had a 1.72-fold (CI: 1.43-2.03; p-for-trend:0.00) significant raise per every 10 g increase for total sugar intake. There was no significant correlation between various types of dietary sugar intakes and relapse rate or patients' disability. CONCLUSION The present study proposes a possible direct association between high intake of various sugar types and odds of suffering from NMOSD. More investigations are needed to prove this results.
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Affiliation(s)
- Nasim Rezaeimanesh
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soodeh Razeghi Jahromi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Ghorbani
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Nahid Beladi Moghadam
- Department of Neurology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azita Hekmatdoost
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Reza Azimi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sahraian
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
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