1
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Cameron O, Neves JF, Gentleman E. Listen to Your Gut: Key Concepts for Bioengineering Advanced Models of the Intestine. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2302165. [PMID: 38009508 PMCID: PMC10837392 DOI: 10.1002/advs.202302165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 10/12/2023] [Indexed: 11/29/2023]
Abstract
The intestine performs functions central to human health by breaking down food and absorbing nutrients while maintaining a selective barrier against the intestinal microbiome. Key to this barrier function are the combined efforts of lumen-lining specialized intestinal epithelial cells, and the supportive underlying immune cell-rich stromal tissue. The discovery that the intestinal epithelium can be reproduced in vitro as intestinal organoids introduced a new way to understand intestinal development, homeostasis, and disease. However, organoids reflect the intestinal epithelium in isolation whereas the underlying tissue also contains myriad cell types and impressive chemical and structural complexity. This review dissects the cellular and matrix components of the intestine and discusses strategies to replicate them in vitro using principles drawing from bottom-up biological self-organization and top-down bioengineering. It also covers the cellular, biochemical and biophysical features of the intestinal microenvironment and how these can be replicated in vitro by combining strategies from organoid biology with materials science. Particularly accessible chemistries that mimic the native extracellular matrix are discussed, and bioengineering approaches that aim to overcome limitations in modelling the intestine are critically evaluated. Finally, the review considers how further advances may extend the applications of intestinal models and their suitability for clinical therapies.
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Affiliation(s)
- Oliver Cameron
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonSE1 9RTUK
| | - Joana F. Neves
- Centre for Host‐Microbiome InteractionsKing's College LondonLondonSE1 9RTUK
| | - Eileen Gentleman
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonSE1 9RTUK
- Department of Biomedical SciencesUniversity of LausanneLausanne1005Switzerland
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2
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Liu J, Li X, Xu Y, Wu Y, Wang R, Zhang X, Hou Y, Qu H, Wang L, He M, Kupczok A, He J. Highly efficient reduction of ammonia emissions from livestock waste by the synergy of novel manure acidification and inhibition of ureolytic bacteria. ENVIRONMENT INTERNATIONAL 2023; 172:107768. [PMID: 36709675 DOI: 10.1016/j.envint.2023.107768] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/28/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
The global livestock system is one of the largest sources of ammonia emissions and there is an urgent need for ammonia mitigation. Here, we designed and constructed a novel strategy to abate ammonia emissions via livestock manure acidification based on a synthetic lactic acid bacteria community (LAB SynCom). The LAB SynCom possessed a wide carbon source spectrum and pH profile, high adaptability to the manure environment, and a high capability of generating lactic acid. The mitigation strategy was optimized based on the test and performance by adjusting the LAB SynCom inoculation ratio and the adding frequency of carbon source, which contributed to a total ammonia reduction efficiency of 95.5 %. Furthermore, 16S rDNA amplicon sequencing analysis revealed that the LAB SynCom treatment reshaped the manure microbial community structure. Importantly, 22 manure ureolytic microbial genera and urea hydrolysis were notably inhibited by the LAB SynCom treatment during the treatment process. These findings provide new insight into manure acidification that the conversion from ammonia to ammonium ions and the inhibition of ureolytic bacteria exerted a synergistic effect on ammonia mitigation. This work systematically developed a novel strategy to mitigate ammonia emissions from livestock waste, which is a crucial step forward from traditional manure acidification to novel and environmental-friendly acidification.
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Affiliation(s)
- Jun Liu
- Key Laboratory of Development and Application of Rural Renewable Energy, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China; Bioinformatics Group, Wageningen University & Research, Wageningen 6708PB, The Netherlands
| | - Xia Li
- Key Laboratory of Development and Application of Rural Renewable Energy, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Yanliang Xu
- Key Laboratory of Development and Application of Rural Renewable Energy, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Yutian Wu
- Key Laboratory of Development and Application of Rural Renewable Energy, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Ruili Wang
- Inner Mongolia Academy of Science and Technology, Hohhot 010010, China
| | - Xiujuan Zhang
- Inner Mongolia Academy of Science and Technology, Hohhot 010010, China
| | - Yaguang Hou
- Inner Mongolia Academy of Science and Technology, Hohhot 010010, China
| | - Haoli Qu
- Ministry of Agriculture, Nanjing Research Institute for Agricultural Mechanization, Nanjing 210014, China
| | - Li Wang
- Sichuan Academy of Forestry, Chengdu 610081, China
| | - Mingxiong He
- Key Laboratory of Development and Application of Rural Renewable Energy, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Anne Kupczok
- Bioinformatics Group, Wageningen University & Research, Wageningen 6708PB, The Netherlands
| | - Jing He
- Key Laboratory of Development and Application of Rural Renewable Energy, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China.
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3
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Abstract
Lipopolysaccharide (LPS), a cell surface component of Gram-negative bacteria, and its active principle, lipid A, have immunostimulatory properties and thus potential to act as adjuvants. However, canonical LPS acts as an endotoxin by hyperstimulating the immune response. Therefore, it is necessary to structurally modify LPS and lipid A to minimize toxicity while maintaining adjuvant effects for use as vaccine adjuvants. Various studies have focused on the chemical synthetic method of lipid As and their structure-activity relationship, which are reviewed in this chapter.
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4
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Ding R, Xiao Z, Jiang Y, Yang Y, Ji Y, Bao X, Xing K, Zhou X, Zhu S. Calcitriol ameliorates damage in high-salt diet-induced hypertension: Evidence of communication with the gut-kidney axis. Exp Biol Med (Maywood) 2021; 247:624-640. [PMID: 34894804 DOI: 10.1177/15353702211062507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Several studies have established a link between high-salt diet, inflammation, and hypertension. Vitamin D supplementation has shown anti-inflammatory effects in many diseases; gut microbiota is also associated with a wide variety of cardiovascular diseases, but potential role of vitamin D and gut microbiota in high-salt diet-induced hypertension remains unclear. Therefore, we used rats with hypertension induced by a high-salt diet as the research object and analyzed the transcriptome of their tissues (kidney and colon) and gut microbiome to conduct an overall analysis of the gut-kidney axis. We aimed to confirm the effects of high salt and calcitriol on the gut-kidney immune system and the composition of the intestinal flora. We demonstrate that consumption of a high-salt diet results in hypertension and inflammation in the colon and kidney and alteration of gut microbiota composition and function. High-salt diet-induced hypertension was found to be associated with seven microbial taxa and mainly associated with reduced production of the protective short-chain fatty acid butyrate. Calcitriol can reduce colon and kidney inflammation, and there are gene expression changes consistent with restored intestinal barrier function. The protective effect of calcitriol may be mediated indirectly by immunological properties. Additionally, the molecular pathways of the gut microbiota-mediated blood pressure regulation may be related to circadian rhythm signals, which needs to be further investigated. An innovative association analysis of the microbiota may be a key strategy to understanding the association between gene patterns and host.
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Affiliation(s)
- Ruifeng Ding
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zilong Xiao
- Department of Cardiology, Zhongshan Hospital of Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Yufeng Jiang
- Department of Nephrology, 66329Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China.,Key Laboratory of Liver and Kidney Diseases (Shanghai University of Traditional Chinese Medicine), Ministry of Education, Shanghai 201203, China
| | - Yi Yang
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Yang Ji
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Xunxia Bao
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Kaichen Xing
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Xinli Zhou
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Sibo Zhu
- School of Life Sciences, Fudan University, Shanghai 200438, China
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5
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Liu Z, Hosomi K, Shimoyama A, Yoshii K, Sun X, Lan H, Wang Y, Yamaura H, Kenneth D, Saika A, Nagatake T, Kiyono H, Fukase K, Kunisawa J. Chemically Synthesized Alcaligenes Lipid A as an Adjuvant to Augment Immune Responses to Haemophilus Influenzae Type B Conjugate Vaccine. Front Pharmacol 2021; 12:763657. [PMID: 34744743 PMCID: PMC8569242 DOI: 10.3389/fphar.2021.763657] [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: 08/24/2021] [Accepted: 10/07/2021] [Indexed: 11/25/2022] Open
Abstract
We previously identified Alcaligenes spp. as a commensal bacterium that resides in lymphoid tissues, including Peyer’s patches. We found that Alcaligenes-derived lipopolysaccharide acted as a weak agonist of Toll-like receptor four due to the unique structure of lipid A, which lies in the core of lipopolysaccharide. This feature allowed the use of chemically synthesized Alcaligenes lipid A as a safe synthetic vaccine adjuvant that induces Th17 polarization to enhance systemic IgG and respiratory IgA responses to T-cell–dependent antigens (e.g., ovalbumin and pneumococcal surface protein A) without excessive inflammation. Here, we examined the adjuvant activity of Alcaligenes lipid A on a Haemophilus influenzae B conjugate vaccine that contains capsular polysaccharide polyribosyl ribitol phosphate (PRP), a T-cell–independent antigen, conjugated with the T-cell–dependent tetanus toxoid (TT) antigen (i.e., PRP-TT). When mice were subcutaneously immunized with PRP alone or mixed with TT, Alcaligenes lipid A did not affect PRP-specific IgG production. In contrast, PRP-specific serum IgG responses were enhanced when mice were immunized with PRP-TT, but these responses were impaired in similarly immunized T-cell—deficient nude mice. Furthermore, TT-specific—but not PRP-specific—T-cell activation occurred in mice immunized with PRP-TT together with Alcaligenes lipid A. In addition, coculture with Alcaligenes lipid A promoted significant proliferation of and enhanced antibody production by B cells. Together, these findings suggest that Alcaligenes lipid A exerts an adjuvant activity on thymus-independent Hib polysaccharide antigen in the presence of a T-cell–dependent conjugate carrier antigen.
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Affiliation(s)
- Zilai Liu
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan
| | | | - Ken Yoshii
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Medicine, Osaka University, Suita, Japan
| | - Xiao Sun
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Huangwenxian Lan
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Yunru Wang
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Haruki Yamaura
- Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Davie Kenneth
- Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Azusa Saika
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Takahiro Nagatake
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan
| | - Hiroshi Kiyono
- International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Division of Gastroenterology, Department of Medicine, University of California San Diego (UCSD), San Diego, CA, United States.,Chiba University (CU)-UCSD Center for Mucosal Immunology, Allergy and Vaccines (cMAV), UCSD, San Diego, CA, United States.,Future Medicine Education and Research Organization, Chiba University, Chiba, Japan.,Division of Mucosal Immunology, IMSUT Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Koichi Fukase
- Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan.,Graduate School of Science, Osaka University, Toyonaka, Japan.,Graduate School of Medicine, Osaka University, Suita, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Graduate School of Medicine, Kobe University, Kobe, Japan.,Research Organization for Nano and Life Innovation, Waseda University, Tokyo, Japan.,Graduate School of Dentistry, Osaka University, Suita, Japan
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6
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Shimoyama A, Fukase K. Lipid A-Mediated Bacterial-Host Chemical Ecology: Synthetic Research of Bacterial Lipid As and Their Development as Adjuvants. Molecules 2021; 26:molecules26206294. [PMID: 34684874 PMCID: PMC8538916 DOI: 10.3390/molecules26206294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 12/15/2022] Open
Abstract
Gram-negative bacterial cell surface component lipopolysaccharide (LPS) and its active principle, lipid A, exhibit immunostimulatory effects and have the potential to act as adjuvants. However, canonical LPS acts as an endotoxin by hyperstimulating the immune response. Therefore, LPS and lipid A must be structurally modified to minimize their toxic effects while maintaining their adjuvant effect for application as vaccine adjuvants. In the field of chemical ecology research, various biological phenomena occurring among organisms are considered molecular interactions. Recently, the hypothesis has been proposed that LPS and lipid A mediate bacterial-host chemical ecology to regulate various host biological phenomena, mainly immunity. Parasitic and symbiotic bacteria inhabiting the host are predicted to possess low-toxicity immunomodulators due to the chemical structural changes of their LPS caused by co-evolution with the host. Studies on the chemical synthesis and functional evaluation of their lipid As have been developed to test this hypothesis and to apply them to low-toxicity and safe adjuvants.
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Affiliation(s)
- Atsushi Shimoyama
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Correspondence: (A.S.); (K.F.)
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Correspondence: (A.S.); (K.F.)
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7
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Bemark M, Angeletti D. Know your enemy or find your friend?-Induction of IgA at mucosal surfaces. Immunol Rev 2021; 303:83-102. [PMID: 34331314 PMCID: PMC7612940 DOI: 10.1111/imr.13014] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 12/15/2022]
Abstract
Most antibodies produced in the body are of the IgA class. The dominant cell population producing them are plasma cells within the lamina propria of the gastrointestinal tract, but many IgA-producing cells are also found in the airways, within mammary tissues, the urogenital tract and inside the bone marrow. Most IgA antibodies are transported into the lumen by epithelial cells as part of the mucosal secretions, but they are also present in serum and other body fluids. A large part of the commensal microbiota in the gut is covered with IgA antibodies, and it has been demonstrated that this plays a role in maintaining a healthy balance between the host and the bacteria. However, IgA antibodies also play important roles in neutralizing pathogens in the gastrointestinal tract and the upper airways. The distinction between the two roles of IgA - protective and balance-maintaining - not only has implications on function but also on how the production is regulated. Here, we discuss these issues with a special focus on gut and airways.
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Affiliation(s)
- Mats Bemark
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Clinical Immunology and Transfusion Medicine, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Davide Angeletti
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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8
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Li R, Mao Z, Ye X, Zuo T. Human Gut Microbiome and Liver Diseases: From Correlation to Causation. Microorganisms 2021; 9:microorganisms9051017. [PMID: 34066850 PMCID: PMC8151257 DOI: 10.3390/microorganisms9051017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/25/2021] [Accepted: 04/30/2021] [Indexed: 02/06/2023] Open
Abstract
The important role of human gut microbiota in liver diseases has long been recognized as dysbiosis and the translocation of certain microbes from the gut to liver. With the development of high-throughput DNA sequencing, the complexity and integrity of the gut microbiome in the whole spectrum of liver diseases is emerging. Specific patterns of gut microbiota have been identified in liver diseases with different causes, including alcoholic, non-alcoholic, and virus induced liver diseases, or even at different stages, ranging from steatohepatitis, fibrosis, cirrhosis, to hepatocellular carcinoma. At the same time, the mechanism of how microbiota contributes to liver diseases goes beyond the traditional function of the gut–liver axis which could lead to liver injury and inflammation. With the application of proteomics, metabolomics, and modern molecular technologies, more microbial metabolites and the complicated interaction of microbiota with host immunity come into our understanding in the liver pathogenesis. Germ-free animal models serve as a workhorse to test the function of microbiota and their derivatives in liver disease models. Here, we review the current evidence on the relationship between gut microbiota and liver diseases, and the mechanisms underlying this phenotype. In addition to original liver diseases, gut microbiota might also affect liver injury in systemic disorders involving multiple organs, as in the case of COVID-19 at a severe state. A better understanding of the gut microbial contribution to liver diseases might help us better benefit from this guest–host relationship and pave the way for novel therapies.
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Affiliation(s)
- Rui Li
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan 430070, China;
- Correspondence: (R.L.); (T.Z.); Tel.: +86-13-62-86-35-351 (R.L.); +86-13-24-20-77-365 (T.Z.)
| | - Zhengsheng Mao
- Department of Neurology, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China;
| | - Xujun Ye
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan 430070, China;
| | - Tao Zuo
- Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510000, China
- Correspondence: (R.L.); (T.Z.); Tel.: +86-13-62-86-35-351 (R.L.); +86-13-24-20-77-365 (T.Z.)
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9
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Shimoyama A, Di Lorenzo F, Yamaura H, Mizote K, Palmigiano A, Pither MD, Speciale I, Uto T, Masui S, Sturiale L, Garozzo D, Hosomi K, Shibata N, Kabayama K, Fujimoto Y, Silipo A, Kunisawa J, Kiyono H, Molinaro A, Fukase K. Lipopolysaccharide from Gut-Associated Lymphoid-Tissue-Resident Alcaligenes faecalis: Complete Structure Determination and Chemical Synthesis of Its Lipid A. Angew Chem Int Ed Engl 2021; 60:10023-10031. [PMID: 33522128 PMCID: PMC8252424 DOI: 10.1002/anie.202012374] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Indexed: 12/12/2022]
Abstract
Alcaligenes faecalis is the predominant Gram-negative bacterium inhabiting gut-associated lymphoid tissues, Peyer's patches. We previously reported that an A. faecalis lipopolysaccharide (LPS) acted as a weak agonist for Toll-like receptor 4 (TLR4)/myeloid differentiation factor-2 (MD-2) receptor as well as a potent inducer of IgA without excessive inflammation, thus suggesting that A. faecalis LPS might be used as a safe adjuvant. In this study, we characterized the structure of both the lipooligosaccharide (LOS) and LPS from A. faecalis. We synthesized three lipid A molecules with different degrees of acylation by an efficient route involving the simultaneous introduction of 1- and 4'-phosphates. Hexaacylated A. faecalis lipid A showed moderate agonistic activity towards TLR4-mediated signaling and the ability to elicit a discrete interleukin-6 release in human cell lines and mice. It was thus found to be the active principle of the LOS/LPS and a promising vaccine adjuvant candidate.
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Affiliation(s)
- Atsushi Shimoyama
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
- Project Research Center for Fundamental SciencesOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
| | - Flaviana Di Lorenzo
- Department of Chemical Sciences and Task Force on Microbiome StudiesUniversity of Naples Federico IIVia Cinthia 480126NaplesItaly
| | - Haruki Yamaura
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
| | - Keisuke Mizote
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
| | - Angelo Palmigiano
- CNRInstitute for Polymers, Composites and Biomaterials IPCBVia P. Gaifami 1895126CataniaItaly
| | - Molly D. Pither
- Department of Chemical SciencesUniversity of Naples Federico IIVia Cinthia 480126NaplesItaly
| | - Immacolata Speciale
- Department of Chemical Sciences and Task Force on Microbiome StudiesUniversity of Naples Federico IIVia Cinthia 480126NaplesItaly
| | - Tomoya Uto
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
| | - Seiji Masui
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
| | - Luisa Sturiale
- CNRInstitute for Polymers, Composites and Biomaterials IPCBVia P. Gaifami 1895126CataniaItaly
| | - Domenico Garozzo
- CNRInstitute for Polymers, Composites and Biomaterials IPCBVia P. Gaifami 1895126CataniaItaly
| | - Koji Hosomi
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental SystemNational Institutes of Biomedical Innovation, Health and NutritionOsaka567-0085Japan
| | - Naoko Shibata
- Faculty of Science and EngineeringWaseda University3-4-1 Okubo, Shinjuku-kuTokyo169-8555Japan
| | - Kazuya Kabayama
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
- Project Research Center for Fundamental SciencesOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
| | - Yukari Fujimoto
- Faculty of Science and TechnologyKeio University3-14-1 Hiyoshi, Kohoku-kuYokohamaKanagawa223-8522Japan
| | - Alba Silipo
- Department of Chemical Sciences and Task Force on Microbiome StudiesUniversity of Naples Federico IIVia Cinthia 480126NaplesItaly
| | - Jun Kunisawa
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental SystemNational Institutes of Biomedical Innovation, Health and NutritionOsaka567-0085Japan
- International Research and Development Center for Mucosal VaccinesThe Institute of Medical ScienceThe University of Tokyo4–6-1 Shirokanedai, Minato-kuTokyo108-8639Japan
| | - Hiroshi Kiyono
- International Research and Development Center for Mucosal VaccinesThe Institute of Medical ScienceThe University of Tokyo4–6-1 Shirokanedai, Minato-kuTokyo108-8639Japan
| | - Antonio Molinaro
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
- Department of Chemical Sciences and Task Force on Microbiome StudiesUniversity of Naples Federico IIVia Cinthia 480126NaplesItaly
| | - Koichi Fukase
- Department of ChemistryGraduate School of ScienceOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
- Project Research Center for Fundamental SciencesOsaka University1-1 Machikaneyama, ToyonakaOsaka560-0043Japan
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10
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Shimoyama A, Di Lorenzo F, Yamaura H, Mizote K, Palmigiano A, Pither MD, Speciale I, Uto T, Masui S, Sturiale L, Garozzo D, Hosomi K, Shibata N, Kabayama K, Fujimoto Y, Silipo A, Kunisawa J, Kiyono H, Molinaro A, Fukase K. Lipopolysaccharide from Gut‐Associated Lymphoid‐Tissue‐Resident
Alcaligenes faecalis
: Complete Structure Determination and Chemical Synthesis of Its Lipid A. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Atsushi Shimoyama
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Project Research Center for Fundamental Sciences Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Flaviana Di Lorenzo
- Department of Chemical Sciences and Task Force on Microbiome Studies University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Haruki Yamaura
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Keisuke Mizote
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Angelo Palmigiano
- CNR Institute for Polymers, Composites and Biomaterials IPCB Via P. Gaifami 18 95126 Catania Italy
| | - Molly D. Pither
- Department of Chemical Sciences University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Immacolata Speciale
- Department of Chemical Sciences and Task Force on Microbiome Studies University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Tomoya Uto
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Seiji Masui
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Luisa Sturiale
- CNR Institute for Polymers, Composites and Biomaterials IPCB Via P. Gaifami 18 95126 Catania Italy
| | - Domenico Garozzo
- CNR Institute for Polymers, Composites and Biomaterials IPCB Via P. Gaifami 18 95126 Catania Italy
| | - Koji Hosomi
- Laboratory of Vaccine Materials Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System National Institutes of Biomedical Innovation, Health and Nutrition Osaka 567-0085 Japan
| | - Naoko Shibata
- Faculty of Science and Engineering Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
| | - Kazuya Kabayama
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Project Research Center for Fundamental Sciences Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Yukari Fujimoto
- Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama Kanagawa 223-8522 Japan
| | - Alba Silipo
- Department of Chemical Sciences and Task Force on Microbiome Studies University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Jun Kunisawa
- Laboratory of Vaccine Materials Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System National Institutes of Biomedical Innovation, Health and Nutrition Osaka 567-0085 Japan
- International Research and Development Center for Mucosal Vaccines The Institute of Medical Science The University of Tokyo 4–6-1 Shirokanedai, Minato-ku Tokyo 108-8639 Japan
| | - Hiroshi Kiyono
- International Research and Development Center for Mucosal Vaccines The Institute of Medical Science The University of Tokyo 4–6-1 Shirokanedai, Minato-ku Tokyo 108-8639 Japan
| | - Antonio Molinaro
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Department of Chemical Sciences and Task Force on Microbiome Studies University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Koichi Fukase
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Project Research Center for Fundamental Sciences Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
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11
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Maccioni L, Gao B, Leclercq S, Pirlot B, Horsmans Y, De Timary P, Leclercq I, Fouts D, Schnabl B, Stärkel P. Intestinal permeability, microbial translocation, changes in duodenal and fecal microbiota, and their associations with alcoholic liver disease progression in humans. Gut Microbes 2020; 12:1782157. [PMID: 32588725 PMCID: PMC7524402 DOI: 10.1080/19490976.2020.1782157] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Animal data suggest a role of the gut-liver axis in progression of alcoholic liver disease (ALD), but human data are scarce especially for early disease stages. METHODS We included patients with alcohol use disorder (AUD) who follow a rehabilitation program and matched healthy controls. We determined intestinal epithelial and vascular permeability (IP) (using urinary excretion of 51Cr-EDTA, fecal albumin content, and immunohistochemistry in distal duodenal biopsies), epithelial damage (histology, serum iFABP, and intestinal gene expression), and microbial translocation (Gram - and Gram + serum markers by ELISA). Duodenal mucosa-associated microbiota and fecal microbiota were analyzed by 16 S rRNA sequencing. ALD was staged by Fibroscan® (liver stiffness, controlled attenuation parameter) in combination with serum AST, ALT, and CK18-M65. RESULTS Only a subset of AUD patients had increased 51Cr-EDTA and fecal albumin together with disrupted tight junctions and vasculature expression of plasmalemma Vesicle-Associated Protein-1. The so-defined increased intestinal permeability was not related to changes of the duodenal microbiota or alterations of the intestinal epithelium but associated with compositional changes of the fecal microbiota. Leaky gut alone did not explain increased microbial translocation in AUD patients. By contrast, duodenal dysbiosis with a dominance shift toward specific potential pathogenic bacteria genera (Streptococcus, Shuttleworthia, Rothia), increased IP and elevated markers of microbial translocation characterized AUD patients with progressive ALD (steato-hepatitis, steato-fibrosis). CONCLUSION Progressive ALD already at early disease stages is associated with duodenal mucosa-associated dysbiosis and elevated microbial translocation. Surprisingly, such modifications were not linked with increased IP. Rather, increased IP appears related to fecal microbiota dysbiosis.
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Affiliation(s)
- Luca Maccioni
- Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | - Bei Gao
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Sophie Leclercq
- Institute of Neuroscience and Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | - Boris Pirlot
- Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | - Yves Horsmans
- Department of Hepato-gastroenterology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Philippe De Timary
- Department of Adult Psychiatry, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Isabelle Leclercq
- Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | | | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, CA, USA,Department of Medicine, VA San Diego Healthcare System, San Diego, CA, USA
| | - Peter Stärkel
- Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology, UCLouvain, Université Catholique de Louvain, Brussels, Belgium,Department of Hepato-gastroenterology, Cliniques Universitaires Saint-Luc, Brussels, Belgium,CONTACT Peter Stärkel Laboratory of Hepato-gastroenterology, Institute of Experimental and Clinical Research, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
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12
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Mollaei M, Abbasi A, Hassan ZM, Pakravan N. The intrinsic and extrinsic elements regulating inflammation. Life Sci 2020; 260:118258. [PMID: 32818542 DOI: 10.1016/j.lfs.2020.118258] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/07/2020] [Accepted: 08/08/2020] [Indexed: 12/14/2022]
Abstract
Inflammation is a sophisticated biological tissue response to both extrinsic and intrinsic stimuli. Although the pathological aspects of inflammation are well appreciated, there are still rooms for understanding the physiological functions of the inflammation. Recent studies have focused on mechanisms, context and the role of physiological inflammation. Besides, there have been progress in the comprehension of commensal microbiota, immunometabolism, cancer and intracellular signaling events' roles that impact on the regulation of inflammation. Despite the fact that inflammatory responses are vital through tissue damage, understanding the mechanisms to turn off the finished or unnecessary inflammation is crucial for restoring homeostasis. Inflammation seems to be a smart process that acts like two edges of a sword, meaning that it has both protective and deleterious consequences. Knowing both edges and the regulation processes will help the future understanding and therapy for various diseases.
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Affiliation(s)
- M Mollaei
- Department of Immunology, School of Medicine, Tarbiat Modares University, Iran.
| | - A Abbasi
- Department of Immunology, School of Medicine, Tarbiat Modares University, Iran
| | - Z M Hassan
- Department of Immunology, School of Medicine, Tarbiat Modares University, Iran
| | - N Pakravan
- Department of Immunology, School of Medicine, Alborz University of Medical Science, Iran
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13
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Adjuvant Activity of Synthetic Lipid A of Alcaligenes, a Gut-Associated Lymphoid Tissue-Resident Commensal Bacterium, to Augment Antigen-Specific IgG and Th17 Responses in Systemic Vaccine. Vaccines (Basel) 2020; 8:vaccines8030395. [PMID: 32698404 PMCID: PMC7565795 DOI: 10.3390/vaccines8030395] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/15/2020] [Accepted: 07/15/2020] [Indexed: 12/15/2022] Open
Abstract
Alcaligenes spp. are identified as commensal bacteria and have been found to inhabit Peyer’s patches in the gut. We previously reported that Alcaligenes-derived lipopolysaccharides (LPS) exerted adjuvant activity in systemic vaccination, without excessive inflammation. Lipid A is one of the components responsible for the biological effect of LPS and has previously been applied as an adjuvant. Here, we examined the adjuvant activity and safety of chemically synthesized Alcaligenes lipid A. We found that levels of OVA-specific serum IgG antibodies increased in mice that were subcutaneously immunized with ovalbumin (OVA) plus Alcaligenes lipid A relative to those that were immunized with OVA alone. In addition, Alcaligenes lipid A promoted antigen-specific T helper 17 (Th17) responses in the spleen; upregulated the expression of MHC class II, CD40, CD80, and CD86 on bone marrow-derived dendritic cells (BMDCs); enhanced the production of Th17-inducing cytokines IL-6 and IL-23 from BMDCs. Stimulation with Alcaligenes lipid A also induced the production of IL-6 and IL-1β in human peripheral blood mononuclear cells. Moreover, Alcaligenes lipid A caused minor side effects, such as lymphopenia and thrombocytopenia. These findings suggest that Alcaligenes lipid A is a safe and effective Th17-type adjuvant by directly stimulating dendritic cells in systemic vaccination.
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14
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Hosomi K, Kiyono H, Kunisawa J. Fatty acid metabolism in the host and commensal bacteria for the control of intestinal immune responses and diseases. Gut Microbes 2020; 11:276-284. [PMID: 31120334 PMCID: PMC7524326 DOI: 10.1080/19490976.2019.1612662] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Intestinal tissue has a specialized immune system that exhibits an exquisite balance between active and suppressive responses important for the maintenance of health. Intestinal immunity is functionally affected by both diet and gut commensal bacteria. Here, we review the effects of fatty acids on the regulation of intestinal immunity and immunological diseases, revealing that dietary fatty acids and their metabolites play an important role in the regulation of allergy, inflammation, and immunosurveillance in the intestine. Several lines of evidence have revealed that some dietary fatty acids are converted to biologically active metabolites by enzymes not only in the host but also in the commensal bacteria. Thus, biological interaction between diet and commensal bacteria could form the basis of a new era in the control of host immunity and its associated diseases.
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Affiliation(s)
- Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Osaka, Japan
| | - Hiroshi Kiyono
- International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan,IMSUT Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan,Graduate School of Medicine, Chiba University, Chiba, Japan,Department of Medicine, School of Medicine and CU-UCSD Center for Mucosal Immunology, Allergy and Vaccine, University of California, California, USA
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Osaka, Japan,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan,Graduate School of Medicine, Graduate School of Pharmaceutical Sciences, Graduate School of Dentistry, Osaka University, Osaka, Japan,Department of Microbiology and Immunology, Kobe University Graduate School of Medicine, Hyogo, Japan,CONTACT Jun Kunisawa Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), 7-6-8 Saito-Asagi, Ibaraki City, Osaka567-0085, Japan
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15
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Nochi T, Suzuki S, Ito S, Morita S, Furukawa M, Fuchimoto D, Sasahara Y, Usami K, Niimi K, Itano O, Kitago M, Matsuda S, Matsuo A, Suyama Y, Sakai Y, Wu G, Bazer FW, Watanabe K, Onishi A, Aso H. Elucidation of the Effects of a Current X-SCID Therapy on Intestinal Lymphoid Organogenesis Using an In Vivo Animal Model. Cell Mol Gastroenterol Hepatol 2020; 10:83-100. [PMID: 32017983 PMCID: PMC7210612 DOI: 10.1016/j.jcmgh.2020.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/26/2020] [Accepted: 01/27/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND & AIMS Organ-level research using an animal model lacking Il2rg, the gene responsible for X-linked severe combined immunodeficiency (X-SCID), is clinically unavailable and would be a powerful tool to gain deeper insights into the symptoms of patients with X-SCID. METHODS We used an X-SCID animal model, which was first established in our group by the deletion of Il2rg gene in pigs, to understand the clinical signs from multiple perspectives based on pathology, immunology, microbiology, and nutrition. We also treated the X-SCID pigs with bone marrow transplantation (BMT) for mimicking a current therapeutic treatment for patients with X-SCID and investigated the effect at the organ-level. Moreover, the results were confirmed using serum and fecal samples collected from patients with X-SCID. RESULTS We demonstrated that X-SCID pigs completely lacked Peyer's patches (PPs) and IgA production in the small intestine, but possessed some dysfunctional intestinal T and B cells. Another novel discovery was that X-SCID pigs developed a heterogeneous intestinal microflora and possessed abnormal plasma metabolites, indicating that X-SCID could be an immune disorder that affects various in vivo functions. Importantly, the organogenesis of PPs in X-SCID pigs was not promoted by BMT. Although a few isolated lymphoid follicles developed in the small intestine of BMT-treated X-SCID pigs, there was no evidence that they contributed to IgA production and microflora formation. Consistently, most patients with X-SCID who received BMT possessed abnormal intestinal immune and microbial environments regardless of the presence of sufficient serum IgG. CONCLUSIONS These results indicate that the current BMT therapies for patients with X-SCID may be insufficient to induce the organogenesis of intestinal lymphoid tissues that are associated with numerous functions in vivo.
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Affiliation(s)
- Tomonori Nochi
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan,International Research and Development Center for Mucosal Vaccine, Institute of Medical Science, University of Tokyo, Tokyo, Japan,Correspondence Address correspondence to: Tomonori Nochi, International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8572, Japan. fax: +81-22-757-4315.
| | - Shunichi Suzuki
- Division of Animal Science, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Shun Ito
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Shotaro Morita
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Mutsumi Furukawa
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Daiichiro Fuchimoto
- Division of Animal Science, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Yoji Sasahara
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Katsuki Usami
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Kanae Niimi
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Osamu Itano
- Department of Hepato-Biliary-Pancreatic and Gastrointestinal Surgery, International University of Health and Welfare School of Medicine, Chiba, Japan
| | - Minoru Kitago
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Sachiko Matsuda
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Ayumi Matsuo
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Yoshihisa Suyama
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Yoshifumi Sakai
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Guoyao Wu
- Department of Animal Science, Texas A&M University, College Station, Texas
| | - Fuller W. Bazer
- Department of Animal Science, Texas A&M University, College Station, Texas
| | - Kouichi Watanabe
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
| | - Akira Onishi
- Department of Animal Science and Resources, Nihon University College of Bioresource Sciences, Kanagawa, Japan
| | - Hisashi Aso
- International Education and Research Center for Food and Agricultural Immunology, Tohoku University Graduate School of Agricultural Science, Miyagi, Japan
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16
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Togo A, Dufour JC, Lagier JC, Dubourg G, Raoult D, Million M. Repertoire of human breast and milk microbiota: a systematic review. Future Microbiol 2019; 14:623-641. [PMID: 31025880 DOI: 10.2217/fmb-2018-0317] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Breastfeeding is a major determinant of human health. Breast milk is not sterile and ecological large-scale sequencing methods have revealed an unsuspected microbial diversity that plays an important role. However, microbiological analysis at the species level has been neglected while it is a prerequisite before understanding which microbe is associated with symbiosis or dysbiosis, and health or disease. We review the currently known bacterial repertoire from the human breast and milk microbiota using a semiautomated strategy. Total 242 articles from 38 countries, 11,124 women and 15,489 samples were included. Total 820 species were identified mainly composed of Proteobacteria and Firmicutes. We report variations according to the analytical method (culture or molecular method), the anatomical site (breast, colostrum or milk) and the infectious status (healthy control, mastitis, breast abscess, neonatal infection). In addition, we compared it with the other human repertoires. Finally, we discuss its putative origin and role in health and disease.
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Affiliation(s)
- Amadou Togo
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - Jean-Charles Dufour
- Aix Marseille Univ, APHM, INSERM, IRD, SESSTIM, Hop Timone, BioSTIC, Marseille, France
| | - Jean-Christophe Lagier
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - Gregory Dubourg
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - Didier Raoult
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - Matthieu Million
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
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17
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Di Lorenzo F, De Castro C, Silipo A, Molinaro A. Lipopolysaccharide structures of Gram-negative populations in the gut microbiota and effects on host interactions. FEMS Microbiol Rev 2019; 43:257-272. [DOI: 10.1093/femsre/fuz002] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 01/11/2019] [Indexed: 12/15/2022] Open
Affiliation(s)
- Flaviana Di Lorenzo
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia 4, 80126 Naples, Italy
- Task Force on Microbiome Studies, University of Naples Federico II, via Cinthia 4, 80126 Naples, Italy
| | - Cristina De Castro
- Task Force on Microbiome Studies, University of Naples Federico II, via Cinthia 4, 80126 Naples, Italy
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Italy
| | - Alba Silipo
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia 4, 80126 Naples, Italy
- Task Force on Microbiome Studies, University of Naples Federico II, via Cinthia 4, 80126 Naples, Italy
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia 4, 80126 Naples, Italy
- Task Force on Microbiome Studies, University of Naples Federico II, via Cinthia 4, 80126 Naples, Italy
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18
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Li B, Selmi C, Tang R, Gershwin ME, Ma X. The microbiome and autoimmunity: a paradigm from the gut-liver axis. Cell Mol Immunol 2018; 15:595-609. [PMID: 29706647 PMCID: PMC6079090 DOI: 10.1038/cmi.2018.7] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/01/2018] [Accepted: 01/02/2018] [Indexed: 02/07/2023] Open
Abstract
Microbial cells significantly outnumber human cells in the body, and the microbial flora at mucosal sites are shaped by environmental factors and, less intuitively, act on host immune responses, as demonstrated by experimental data in germ-free and gnotobiotic studies. Our understanding of this link stems from the established connection between infectious bacteria and immune tolerance breakdown, as observed in rheumatic fever triggered by Streptococci via molecular mimicry, epitope spread and bystander effects. The availability of high-throughput techniques has significantly advanced our capacity to sequence the microbiome and demonstrated variable degrees of dysbiosis in numerous autoimmune diseases, including rheumatoid arthritis, type 1 diabetes, multiple sclerosis and autoimmune liver disease. It remains unknown whether the observed differences are related to the disease pathogenesis or follow the therapeutic and inflammatory changes and are thus mere epiphenomena. In fact, there are only limited data on the molecular mechanisms linking the microbiota to autoimmunity, and microbial therapeutics is being investigated to prevent or halt autoimmune diseases. As a putative mechanism, it is of particular interest that the apoptosis of intestinal epithelial cells in response to microbial stimuli enables the presentation of self-antigens, giving rise to the differentiation of autoreactive Th17 cells and other T helper cells. This comprehensive review will illustrate the data demonstrating the crosstalk between intestinal microbiome and host innate and adaptive immunity, with an emphasis on how dysbiosis may influence systemic autoimmunity. In particular, a gut–liver axis involving the intestinal microbiome and hepatic autoimmunity is elucidated as a paradigm, considering its anatomic and physiological connections.
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Affiliation(s)
- Bo Li
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, 200001, Shanghai, China
| | - Carlo Selmi
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Rozzano, Italy.,BIOMETRA Department, University of Milan, Milan, Italy
| | - Ruqi Tang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, 200001, Shanghai, China
| | - M E Gershwin
- Division of Rheumatology, Department of Medicine, Allergy and Clinical Immunology, University of California at Davis, Davis, CA, USA
| | - Xiong Ma
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, 200001, Shanghai, China.
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19
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Liu P, Jiang W, Zhang H. Identification of target gene of venous thromboembolism in patients with lymphoma via microarray analysis. Oncol Lett 2017; 14:3313-3318. [PMID: 28927082 PMCID: PMC5588007 DOI: 10.3892/ol.2017.6625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 01/06/2017] [Indexed: 12/21/2022] Open
Abstract
Patients with lymphoma are at high risk of developing venous thromboembolism (VTE). The purpose of the present study was to identify the target gene associated with VTE for patients with lymphoma. Microarray data was downloaded from the gene expression omnibus database (GSE17078), which comprised the control group, 27 normal blood outgrowth endothelial cell (BOEC) samples, and the case group, 3 BOEC samples of venous thrombosis with protein C deficiency. Differentially expressed genes (DEGs) were identified by the Limma package of R. Gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) pathway analyses were performed via the database for annotation, visualization and integrated discovery. Differentially coexpressed pairs were identified by the DCGL package of R. The subsequent protein-protein interaction (PPI) networks and gene coexpression networks were constructed by the Search Tool for the Retrieval of Interacting Genes/Proteins database, and were visualized by Cytoscape software. A total of 110 DEGs were obtained, including 73 upregulated and 37 downregulated genes. GO and KEGG pathway enrichment analyses identified 132 significant GO terms and 9 significant KEGG pathways. In total, 97 PPI pairs for PPI network and 309 differential coexpression pairs for the gene coexpression network were obtained. Additionally, the connective tissue growth factor (CTGF) gene was closely connected with other genes in the two networks. A total of 2 KEGG pathways were associated with VTE and CTGF may be the target gene of VTE in patients with lymphoma. The present study may identify the molecular mechanism of VTE, but additional clinical study is required to validate the results.
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Affiliation(s)
- Pengfei Liu
- Department of Lymphoma, Sino-US Center of Lymphoma and Leukemia, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Wenhua Jiang
- Department of Radiotherapy, Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Huilai Zhang
- Department of Lymphoma, Sino-US Center of Lymphoma and Leukemia, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
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20
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Regulation of inflammation by microbiota interactions with the host. Nat Immunol 2017; 18:851-860. [PMID: 28722709 DOI: 10.1038/ni.3780] [Citation(s) in RCA: 411] [Impact Index Per Article: 58.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 05/30/2017] [Indexed: 12/13/2022]
Abstract
The study of the intestinal microbiota has begun to shift from cataloging individual members of the commensal community to understanding their contributions to the physiology of the host organism in health and disease. Here, we review the effects of the microbiome on innate and adaptive immunological players from epithelial cells and antigen-presenting cells to innate lymphoid cells and regulatory T cells. We discuss recent studies that have identified diverse microbiota-derived bioactive molecules and their effects on inflammation within the intestine and distally at sites as anatomically remote as the brain. Finally, we highlight new insights into how the microbiome influences the host response to infection, vaccination and cancer, as well as susceptibility to autoimmune and neurodegenerative disorders.
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21
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Kurashima Y, Kiyono H. Mucosal Ecological Network of Epithelium and Immune Cells for Gut Homeostasis and Tissue Healing. Annu Rev Immunol 2017; 35:119-147. [PMID: 28125357 DOI: 10.1146/annurev-immunol-051116-052424] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The intestinal epithelial barrier includes columnar epithelial, Paneth, goblet, enteroendocrine, and tuft cells as well as other cell populations, all of which contribute properties essential for gastrointestinal homeostasis. The intestinal mucosa is covered by mucin, which contains antimicrobial peptides and secretory IgA and prevents luminal bacteria, fungi, and viruses from stimulating intestinal immune responses. Conversely, the transport of luminal microorganisms-mediated by M, dendritic, and goblet cells-into intestinal tissues facilitates the harmonization of active and quiescent mucosal immune responses. The bacterial population within gut-associated lymphoid tissues creates the intratissue cohabitations for harmonized mucosal immunity. Intermolecular and intercellular communication among epithelial, immune, and mesenchymal cells creates an environment conducive for epithelial regeneration and mucosal healing. This review summarizes the so-called intestinal mucosal ecological network-the complex but vital molecular and cellular interactions of epithelial mesenchymal cells, immune cells, and commensal microbiota that achieve intestinal homeostasis, regeneration, and healing.
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Affiliation(s)
- Yosuke Kurashima
- Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; .,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Institute for Global Prominent Research, Chiba University, Chiba 260-8670, Japan.,Department of Mucosal Immunology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan.,Department of Innovative Medicine, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan.,Chiba University-UC San Diego Center for Mucosal Immunology, Allergy, and Vaccine, La Jolla, CA 92093
| | - Hiroshi Kiyono
- Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; .,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Chiba University-UC San Diego Center for Mucosal Immunology, Allergy, and Vaccine, La Jolla, CA 92093.,Department of Immunology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
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22
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Fung TC, Bessman NJ, Hepworth MR, Kumar N, Shibata N, Kobuley D, Wang K, Ziegler CGK, Goc J, Shima T, Umesaki Y, Sartor RB, Sullivan KV, Lawley TD, Kunisawa J, Kiyono H, Sonnenberg GF. Lymphoid-Tissue-Resident Commensal Bacteria Promote Members of the IL-10 Cytokine Family to Establish Mutualism. Immunity 2016; 44:634-646. [PMID: 26982365 PMCID: PMC4845739 DOI: 10.1016/j.immuni.2016.02.019] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 09/16/2015] [Accepted: 12/29/2015] [Indexed: 12/19/2022]
Abstract
Physical separation between the mammalian immune system and commensal bacteria is necessary to limit chronic inflammation. However, selective species of commensal bacteria can reside within intestinal lymphoid tissues of healthy mammals. Here, we demonstrate that lymphoid-tissue-resident commensal bacteria (LRC) colonized murine dendritic cells and modulated their cytokine production. In germ-free and antibiotic-treated mice, LRCs colonized intestinal lymphoid tissues and induced multiple members of the IL-10 cytokine family, including dendritic-cell-derived IL-10 and group 3 innate lymphoid cell (ILC3)-derived IL-22. Notably, IL-10 limited the development of pro-inflammatory Th17 cell responses, and IL-22 production enhanced LRC colonization in the steady state. Furthermore, LRC colonization protected mice from lethal intestinal damage in an IL-10-IL-10R-dependent manner. Collectively, our data reveal a unique host-commensal-bacteria dialog whereby selective subsets of commensal bacteria interact with dendritic cells to facilitate tissue-specific responses that are mutually beneficial for both the host and the microbe.
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Affiliation(s)
- Thomas C Fung
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, New York, NY 10021 USA; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10021 USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10021, USA
| | - Nicholas J Bessman
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, New York, NY 10021 USA; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10021 USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10021, USA
| | - Matthew R Hepworth
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, New York, NY 10021 USA; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10021 USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10021, USA
| | - Nitin Kumar
- Host Microbiota Interactions Laboratory, Wellcome Trust Sanger Institute, Hinxton CB10 1SA, UK
| | - Naoko Shibata
- Department of Microbiology and Immunology, The Institute of Medical Science, The University of Toyko, Toyko 108-8639, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Tokyo 102-0076, Japan
| | - Dmytro Kobuley
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kelvin Wang
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Carly G K Ziegler
- Department of Computational Biology and Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10021, USA
| | - Jeremy Goc
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, New York, NY 10021 USA; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10021 USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10021, USA
| | | | | | - R Balfour Sartor
- Department of Microbiology and Immunology, Center for Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, NC 27599-7032, USA
| | - Kaede V Sullivan
- The Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Trevor D Lawley
- Host Microbiota Interactions Laboratory, Wellcome Trust Sanger Institute, Hinxton CB10 1SA, UK
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka 567-0085, Japan
| | - Hiroshi Kiyono
- Department of Microbiology and Immunology, The Institute of Medical Science, The University of Toyko, Toyko 108-8639, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Tokyo 102-0076, Japan
| | - Gregory F Sonnenberg
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, New York, NY 10021 USA; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10021 USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10021, USA.
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23
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Ruff WE, Vieira SM, Kriegel MA. The role of the gut microbiota in the pathogenesis of antiphospholipid syndrome. Curr Rheumatol Rep 2015; 17:472. [PMID: 25475595 DOI: 10.1007/s11926-014-0472-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Infectious triggers are associated with the induction of transient antiphospholipid antibodies. One therefore wonders if microbes that permanently colonize us play a role in the pathogenesis of antiphospholipid syndrome (APS). The microbiota represents the collection of all microorganisms colonizing humans and is necessary for normal host physiology. The microbiota, however, is a constant stress on the immune system, which is tasked with recognizing and eliminating pathogenic microbes while tolerating commensal populations. A growing body of literature supports a critical role for the commensal-immune axis in the development of autoimmunity against colonized barriers (e.g., gut or skin) and sterile organs (e.g., pancreas or joints). Whether these interactions affect the development and sustainment of autoreactive CD4(+) T cells and pathogenic autoantibodies in APS is unknown. This review provides an overview of the current understanding of the commensal-immune axis in autoimmunity with a focus on the potential relevance to APS. Additionally, we discuss emerging findings supporting the involvement of the gut microbiota in a spontaneous model of APS, the (NZW × BXSB)F1 hybrid, and formalize hypotheses to explain how interactions between the immune system and the microbiota may influence human APS etiopathogenesis.
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Affiliation(s)
- William E Ruff
- Department of Immunobiology, Yale University School of Medicine, 300 George St, Suite 353G, New Haven, CT, 06511, USA,
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24
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Ruff WE, Kriegel MA. Autoimmune host-microbiota interactions at barrier sites and beyond. Trends Mol Med 2015; 21:233-44. [PMID: 25771098 DOI: 10.1016/j.molmed.2015.02.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 01/21/2015] [Accepted: 02/12/2015] [Indexed: 02/07/2023]
Abstract
The microbiota is considered to be an important factor influencing the pathogenesis of autoimmunity at both barrier sites and internal organs. Impinging on innate and adaptive immunity, commensals exert protective or detrimental effects on various autoimmune animal models. Human microbiome studies of autoimmunity remain largely descriptive, but suggest a role for dysbiosis in autoimmune disease. Humanized gnotobiotic approaches have advanced our understanding of immune-commensal interactions, but little is known about the mechanisms in autoimmunity. We propose that, similarly to infectious agents, the microbiota mediates autoimmunity via bystander activation, epitope spread, and, particularly under homeostatic conditions, via crossreactivity. This review presents an overview of the current literature concluding with outstanding questions in this field.
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Affiliation(s)
- William E Ruff
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Martin A Kriegel
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA; Section of Rheumatology, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA.
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25
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Zhang K, Dupont A, Torow N, Gohde F, Leschner S, Lienenklaus S, Weiss S, Brinkmann MM, Kühnel M, Hensel M, Fulde M, Hornef MW. Age-dependent enterocyte invasion and microcolony formation by Salmonella. PLoS Pathog 2014; 10:e1004385. [PMID: 25210785 PMCID: PMC4161480 DOI: 10.1371/journal.ppat.1004385] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/05/2014] [Indexed: 12/13/2022] Open
Abstract
The coordinated action of a variety of virulence factors allows Salmonella enterica to invade epithelial cells and penetrate the mucosal barrier. The influence of the age-dependent maturation of the mucosal barrier for microbial pathogenesis has not been investigated. Here, we analyzed Salmonella infection of neonate mice after oral administration. In contrast to the situation in adult animals, we observed spontaneous colonization, massive invasion of enteroabsorptive cells, intraepithelial proliferation and the formation of large intraepithelial microcolonies. Mucosal translocation was dependent on enterocyte invasion in neonates in the absence of microfold (M) cells. It further resulted in potent innate immune stimulation in the absence of pronounced neutrophil-dominated pathology. Our results identify factors of age-dependent host susceptibility and provide important insight in the early steps of Salmonella infection in vivo. We also present a new small animal model amenable to genetic manipulation of the host for the analysis of the Salmonella enterocyte interaction in vivo. Non-typhoidal Salmonella are among of the most prevalent causative agents of infectious diarrheal disease worldwide but also very significantly contribute to infant sepsis and meningitis particularly in developing countries. The underlying mechanisms of the elevated susceptibility of the infant host to systemic Salmonella infection have not been investigated. Here we analyzed age-dependent differences in the colonization, mucosal translocation and systemic spread in a murine oral infection model. We observed efficient entry of Salmonella in intestinal epithelial cells of newborn mice. Enterocyte invasion was followed by massive bacterial proliferation and the formation of large intraepithelial bacterial colonies. Intraepithelial, but not non-invasive, extracellular Salmonella induced a potent immune stimulation. Also, enterocyte invasion was required for translocation through the mucosal barrier and spread of Salmonella to systemic organs. This requirement was due to the absence of M cells, specialized epithelial cells that forward luminal antigen to the underlying immune cells, in the neonate host. Our results identify age-dependent factors of host susceptibility and illustrate the initial phase of Salmonella infection. They further present a new small animal model amenable to genetic manipulation to investigate the interaction of this pathogen with epithelial cells and characterize the early steps in Salmonella pathogenesis.
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Affiliation(s)
- Kaiyi Zhang
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Aline Dupont
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Natalia Torow
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Fredrik Gohde
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Sara Leschner
- Department of Molecular Immunology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Stefan Lienenklaus
- Department of Molecular Immunology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Siegfried Weiss
- Department of Molecular Immunology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Melanie M. Brinkmann
- Department of Viral Immune Modulation, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Mark Kühnel
- Centre for Anatomy, Hannover Medical School, Hannover, Germany
| | - Michael Hensel
- Division of Microbiology, University of Osnabrück, Osnabrück, Germany
| | - Marcus Fulde
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
- * E-mail: (MF); (MWH)
| | - Mathias W. Hornef
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
- * E-mail: (MF); (MWH)
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26
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Collins JW, Chervaux C, Raymond B, Derrien M, Brazeilles R, Kosta A, Chambaud I, Crepin VF, Frankel G. Fermented dairy products modulate Citrobacter rodentium-induced colonic hyperplasia. J Infect Dis 2014; 210:1029-41. [PMID: 24706936 PMCID: PMC4157696 DOI: 10.1093/infdis/jiu205] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We evaluated the protective effects of fermented dairy products (FDPs) in an infection model, using the mouse pathogen Citrobacter rodentium (CR). Treatment of mice with FDP formulas A, B, and C or a control product did not affect CR colonization, organ specificity, or attaching and effacing lesion formation. Fermented dairy product A (FDP-A), but neither the supernatant from FDP-A nor β-irradiated (IR) FDP-A, caused a significant reduction in colonic crypt hyperplasia and CR-associated pathology. Profiling the gut microbiota revealed that IR-FDP-A promoted higher levels of phylotypes belonging to Alcaligenaceae and a decrease in Lachnospiraceae (Ruminococcus) during CR infection. Conversely, FDP-A prevented a decrease in Ruminococcus and increased Turicibacteraceae (Turicibacter). Importantly, loss of Ruminococcus and Turicibacter has been associated with susceptibility to dextran sodium sulfate-induced colitis. Our results demonstrate that viable bacteria in FDP-A reduced CR-induced colonic crypt hyperplasia and prevented the loss of key bacterial genera that may contribute to disease pathology.
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Affiliation(s)
- James W Collins
- MRC Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College London, United Kingdom
| | | | - Benoit Raymond
- MRC Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College London, United Kingdom
| | - Muriel Derrien
- Danone Nutricia Research, Centre Daniel Carasso, Palaiseau
| | | | - Artemis Kosta
- MRC Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College London, United Kingdom
| | | | - Valerie F Crepin
- MRC Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College London, United Kingdom
| | - Gad Frankel
- MRC Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College London, United Kingdom
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