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Zhang X, Wang J, Liu Y, Wang H, Li B, Li Q, Wang Y, Zong Y, Wang J, Meng Q, Wu S, Hao R, Li X, Chen R, Chen H. In situ profiling reveals spatially metabolic injury in the initiation of polystyrene nanoplastic-derived intestinal epithelial injury in mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172037. [PMID: 38575003 DOI: 10.1016/j.scitotenv.2024.172037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
Despite increasing concerns regarding the harmful effects of plastic-induced gut injury, mechanisms underlying the initiation of plastic-derived intestinal toxicity remain unelucidated. Here, mice were subjected to long-term exposure to polystyrene nanoplastics (PS-NPs) of varying sizes (80, 200, and 1000 nm) at doses relevant to human dietary exposure. PS-NPs exposure did not induce a significant inflammatory response, histopathological damage, or intestinal epithelial dysfunction in mice at a dosage of 0.5 mg/kg/day for 28 days. However, PS-NPs were detected in the mouse intestine, coupled with observed microstructural changes in enterocytes, including mild villous lodging, mitochondrial membrane rupture, and endoplasmic reticulum (ER) dysfunction, suggesting that intestinal-accumulating PS-NPs resulted in the onset of intestinal epithelial injury in mice. Mechanistically, intragastric PS-NPs induced gut microbiota dysbiosis and specific bacteria alterations, accompanied by abnormal metabolic fingerprinting in the plasma. Furthermore, integrated data from mass spectrometry imaging-based spatial metabolomics and metallomics revealed that PS-NPs exposure led to gut dysbiosis-associated host metabolic reprogramming and initiated intestinal injury. These findings provide novel insights into the critical gut microbial-host metabolic remodeling events vital to nanoplastic-derived-initiated intestinal injury.
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Affiliation(s)
- Xianan Zhang
- School of Public Health, Capital Medical University, Beijing 100069, China; Yanjing Medical College, Capital Medical University, Beijing 101300, China
| | - Jing Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yuansheng Liu
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Hemin Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Bin Li
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Qing Li
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yi Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yuru Zong
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Jiajia Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Qingtao Meng
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China
| | - Shenshen Wu
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China
| | - Rongzhang Hao
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xiaobo Li
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China.
| | - Rui Chen
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China; Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an 710032, China.
| | - Hanqing Chen
- School of Public Health, Capital Medical University, Beijing 100069, China; Department of Nutrition & Food Hygiene, Capital Medical University, Beijing 100069, China.
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2
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He P, Guo Y, Wang S, Bu S. Innovative insights: ITLN1 modulates renal injury in response to radiation. Int Immunopharmacol 2024; 133:111987. [PMID: 38652961 DOI: 10.1016/j.intimp.2024.111987] [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: 01/07/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/25/2024]
Abstract
Radiation-induced kidney injury is a common side effect of radiotherapy, as the pelvic region is in close proximity to the kidneys, posing a risk of inducing radiation-induced kidney injury when treating any pelvic malignancies with radiotherapy. This type of injury typically manifests as chronic kidney disease a few months after radiotherapy, with the potential to progress to end-stage renal disease. Radiation-induced damage involves various components of the kidney, including glomeruli, tubules, interstitium, and extracellular matrix. Therefore, investigating its molecular mechanisms is crucial. In this study, we extensively searched literature databases, selecting recent transcriptomic studies related to acute kidney injury (AKI) published in the past decade. We downloaded the raw RNA sequencing datasets GSE30718 and GSE66494 related to AKI from the GEO database and identified that intestinal-type lectin ITLN1 plays a significant role in regulating radiation-induced kidney injury in rats. Differential gene analysis was performed using chip data from the GEO database, and further bioinformatics analysis identified 13 genes that may be involved in regulating kidney injury, with ITLN1 being the most relevant to kidney damage, thus selected as the target gene for this study. Subsequently, a rat model of radiation-induced kidney injury was established for experimental validation, assessing kidney tissue morphology and injury extent through staining observation and immunohistochemical staining. The protective effect of ITLN1 on kidney function was evaluated by measuring changes in rat body weight and blood pressure, serum kidney injury markers, and kidney structure. The experimental results indicate that overexpression of ITLN1 can improve kidney function in rats with radiation-induced kidney injury by activating the Akt/GSK-3β/Nrf2 signaling pathway, suppressing oxidative stress, cell apoptosis, inflammation, cellular senescence, and fibrosis. This study highlights the significant role of ITLN1 in regulating kidney injury, providing a novel target for future treatments of radiation-induced kidney injury.
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Affiliation(s)
- Peng He
- Department of Urology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Ying Guo
- Chengdu Aeronautic Polytechnic, Chengdu 610100, China
| | - Shize Wang
- Department of Urology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Siyuan Bu
- Department of Urology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China.
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3
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Ciorba MA, Konnikova L, Hirota SA, Lucchetta EM, Turner JR, Slavin A, Johnson K, Condray CD, Hong S, Cressall BK, Pizarro TT, Hurtado-Lorenzo A, Heller CA, Moss AC, Swantek JL, Garrett WS. Challenges in IBD Research 2024: Preclinical Human IBD Mechanisms. Inflamm Bowel Dis 2024; 30:S5-S18. [PMID: 38778627 DOI: 10.1093/ibd/izae081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Indexed: 05/25/2024]
Abstract
Preclinical human inflammatory bowel disease (IBD) mechanisms is one of 5 focus areas of the Challenges in IBD Research 2024 document, which also includes environmental triggers, novel technologies, precision medicine, and pragmatic clinical research. Herein, we provide a comprehensive overview of current gaps in inflammatory bowel diseases research that relate to preclinical research and deliver actionable approaches to address them with a focus on how these gaps can lead to advancements in IBD interception, remission, and restoration. The document is the result of multidisciplinary input from scientists, clinicians, patients, and funders and represents a valuable resource for patient-centric research prioritization. This preclinical human IBD mechanisms section identifies major research gaps whose investigation will elucidate pathways and mechanisms that can be targeted to address unmet medical needs in IBD. Research gaps were identified in the following areas: genetics, risk alleles, and epigenetics; the microbiome; cell states and interactions; barrier function; IBD complications (specifically fibrosis and stricturing); and extraintestinal manifestations. To address these gaps, we share specific opportunities for investigation for basic and translational scientists and identify priority actions.
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Affiliation(s)
- Matthew A Ciorba
- Inflammatory Bowel Diseases Center, Division of Gastroenterology, Washington University in St. Louis, Saint Louis, MO, USA
| | - Liza Konnikova
- Departments of Pediatrics, Immunobiology, and Obstetric, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Simon A Hirota
- Snyder Institute for Chronic Diseases, Dept. of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
| | - Elena M Lucchetta
- The Leona M. and Harry B. Helmsley Charitable Trust, New York, NY, USA
| | - Jerrold R Turner
- Departments of Pathology and Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | | | - Cass D Condray
- Patient Representative for the Crohn's & Colitis Foundation, New York, NY, USA
| | - Sungmo Hong
- Patient Representative for the Crohn's & Colitis Foundation, New York, NY, USA
| | - Brandon K Cressall
- Patient Representative for the Crohn's & Colitis Foundation, New York, NY, USA
| | - Theresa T Pizarro
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | | | - Caren A Heller
- Research Department, Crohn's & Colitis Foundation, New York, NY, USA
| | - Alan C Moss
- Research Department, Crohn's & Colitis Foundation, New York, NY, USA
| | | | - Wendy S Garrett
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- The Harvard T. H. Chan Microbiome in Public Health Center, Boston, MA, USA
- Kymera Therapeutics, Watertown, MA, USA
- The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
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4
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Miao Y, Wang M, Sun H, Zhang Y, Zhou W, Yang W, Duan L, Niu L, Li Z, Chen J, Li Y, Fan A, Xie Q, Wei S, Bai H, Wang C, Chen Q, Wang X, Li Y, Liu J, Han Y, Fan D, Hong L. Akkermansia muciniphila ameliorates colonic injury in mice with DSS-induced acute colitis by blocking macrophage pro-inflammatory phenotype switching via the HDAC5/DAB2 axis. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024:119751. [PMID: 38776988 DOI: 10.1016/j.bbamcr.2024.119751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/17/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
Akkermansia muciniphila (A. muciniphila), a probiotic, has been linked to macrophage phenotypic polarization in different diseases. However, the role and mechanisms of A. muciniphila in regulating macrophage during ulcerative colitis (UC) are not clear. This research aimed to examine the impact of A. muciniphila on dextran sulfate sodium (DSS)-induced acute colitis and elucidate the underlying mechanism related to macrophage phenotypic polarization. A. muciniphila inhibited weight loss, increased disease activity index, and ameliorated inflammatory injury in colonic tissues in mice induced with DSS. Furthermore, A. muciniphila reduced macrophage M1 polarization and ameliorated epithelial barrier damage in colonic tissues of DSS-induced mice through inhibition of histone deacetylase 5 (HDAC5). In contrast, the effect of A. muciniphila was compromised by HDAC5 overexpression. HDAC5 deacetylated H3K9ac modification of the disabled homolog 2 (DAB2) promoter, which led to repressed DAB2 expression. DAB2 overexpression blocked HDAC5-induced pro-inflammatory polarization of macrophages, whereas knockdown of DAB2 resulted in the loss of effects of A. muciniphila against colonic injury in DSS-induced mice. Taken together, A. muciniphila-induced loss of HDAC5 hampered the deacetylation of DAB2 and enhanced the expression of DAB2. Our findings propose that A. muciniphila may be a possible probiotic agent for alleviating DSS-induced acute colitis.
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Affiliation(s)
- Yan Miao
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Mian Wang
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Hao Sun
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Yujie Zhang
- Department of Histology and Embryology, School of Basic Medicine, Xi'an Medical University, Xi'an 710032, Shaanxi, PR China
| | - Wei Zhou
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Wanli Yang
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Lili Duan
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Liaoran Niu
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Zhenshun Li
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Junfeng Chen
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Yiding Li
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Aqiang Fan
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Qibin Xie
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Siyu Wei
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Han Bai
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Chenyang Wang
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Qian Chen
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Xiangjie Wang
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Yunlong Li
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Jinqiang Liu
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Yu Han
- Department of Otolaryngology, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Daiming Fan
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China
| | - Liu Hong
- Department of Digestive Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, PR China; State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China.
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5
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Meng Q, Guo J, Lv K, Liu Y, Zhang J, Li M, Cheng X, Chen S, Huo X, Zhang Q, Chen Y, Li J. 5 S-Heudelotinone alleviates experimental colitis by shaping the immune system and enhancing the intestinal barrier in a gut microbiota-dependent manner. Acta Pharm Sin B 2024; 14:2153-2176. [PMID: 38799623 PMCID: PMC11120280 DOI: 10.1016/j.apsb.2024.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/22/2023] [Accepted: 01/19/2024] [Indexed: 05/29/2024] Open
Abstract
Aberrant changes in the gut microbiota are implicated in many diseases, including inflammatory bowel disease (IBD). Gut microbes produce diverse metabolites that can shape the immune system and impact the intestinal barrier integrity, indicating that microbe-mediated modulation may be a promising strategy for preventing and treating IBD. Although fecal microbiota transplantation and probiotic supplementation are well-established IBD therapies, novel chemical agents that are safe and exert strong effects on the gut microbiota are urgently needed. Herein, we report the total synthesis of heudelotinone and the discovery of 5S-heudelotinone (an enantiomer) as a potent agent against experimental colitis that acts by modulating the gut microbiota. 5S-Heudelotinone alters the diversity and composition of the gut microbiota and increases the concentration of short-chain fatty acids (SCFAs); thus, it regulates the intestinal immune system by reducing proinflammatory immune cell numbers, and maintains intestinal mucosal integrity by modulating tight junctions (TJs). Moreover, 5S-heudelotinone (2) ameliorates colitis-associated colorectal cancer (CAC) in an azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced in situ carcinoma model. Together, these findings reveal the potential of a novel natural product, namely, 5S-heudelotinone, to control intestinal inflammation and highlight that this product is a safe and effective candidate for the treatment of IBD and CAC.
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Affiliation(s)
- Qing Meng
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Jianshuang Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Ke Lv
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
| | - Yang Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Jin Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Mingyue Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Xirui Cheng
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Shenghua Chen
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
| | | | - Quan Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Yue Chen
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
| | - Jing Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
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6
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Gong X, Ma Y, Deng X, Li A, Li X, Kong X, Liu Y, Liu X, Guo K, Yang Y, Li Z, Wei H, Zhou D, Hong Z. Intestinal dysbiosis exacerbates susceptibility to the anti-NMDA receptor encephalitis-like phenotype by changing blood brain barrier permeability and immune homeostasis. Brain Behav Immun 2024; 116:34-51. [PMID: 38030048 DOI: 10.1016/j.bbi.2023.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023] Open
Abstract
Changes in the intestinal microbiota have been observed in patients with anti-N-methyl-D-aspartate receptor encephalitis (NMDARE). However, whether and how the intestinal microbiota is involved in the pathogenesis of NMDARE susceptibility needs to be demonstrated. Here, we first showed that germ-free (GF) mice that underwent fecal microbiota transplantation (FMT) from NMDARE patients, whose fecal microbiota exhibited low short-chain fatty acid content, decreased abundance of Lachnospiraceae, and increased abundance of Verrucomicrobiota, Akkermansia, Parabacteroides, Oscillospirales, showed significant behavioral deficits. Then, these FMT mice were actively immunized with an amino terminal domain peptide from the GluN1 subunit (GluN1356-385) to mimic the pathogenic process of NMDARE. We found that FMT mice showed an increased susceptibility to an encephalitis-like phenotype characterized by more clinical symptoms, greater pentazole (PTZ)-induced susceptibility to seizures, and higher levels of T2 weighted image (T2WI) hyperintensities following immunization. Furthermore, mice with dysbiotic microbiota had impaired blood-brain barrier integrity and a proinflammatory condition. In NMDARE-microbiota recipient mice, the levels of Evan's blue (EB) dye extravasation increased, ZO-1 and claudin-5 expression decreased, and the levels of proinflammatory cytokines (IL-1, IL-6, IL-17, TNF-α and LPS) increased. Finally, significant brain inflammation, mainly in hippocampal and cortical regions, with modest neuroinflammation, immune cell infiltration, and reduced expression of NMDA receptors were observed in NMDARE microbiota recipient mice following immunization. Overall, our findings demonstrated that intestinal dysbiosis increased NMDARE susceptibility, suggesting a new target for limiting the occurrence of the severe phenotype of NMDARE.
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Affiliation(s)
- Xue Gong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yaru Ma
- Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xiaolin Deng
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Aiqing Li
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xingjie Li
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xueying Kong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yue Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xu Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Kundian Guo
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yuting Yang
- Precision Medicine Institute, The First Affiliated Hospital Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Zhongxin Li
- Precision Medicine Institute, The First Affiliated Hospital Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Hong Wei
- Precision Medicine Institute, The First Affiliated Hospital Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Dong Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Zhen Hong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
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7
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Rühlemann MC, Bang C, Gogarten JF, Hermes BM, Groussin M, Waschina S, Poyet M, Ulrich M, Akoua-Koffi C, Deschner T, Muyembe-Tamfum JJ, Robbins MM, Surbeck M, Wittig RM, Zuberbühler K, Baines JF, Leendertz FH, Franke A. Functional host-specific adaptation of the intestinal microbiome in hominids. Nat Commun 2024; 15:326. [PMID: 38182626 PMCID: PMC10770139 DOI: 10.1038/s41467-023-44636-7] [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: 04/05/2023] [Accepted: 12/20/2023] [Indexed: 01/07/2024] Open
Abstract
Fine-scale knowledge of the changes in composition and function of the human gut microbiome compared that of our closest relatives is critical for understanding the evolutionary processes underlying its developmental trajectory. To infer taxonomic and functional changes in the gut microbiome across hominids at different timescales, we perform high-resolution metagenomic-based analyzes of the fecal microbiome from over two hundred samples including diverse human populations, as well as wild-living chimpanzees, bonobos, and gorillas. We find human-associated taxa depleted within non-human apes and patterns of host-specific gut microbiota, suggesting the widespread acquisition of novel microbial clades along the evolutionary divergence of hosts. In contrast, we reveal multiple lines of evidence for a pervasive loss of diversity in human populations in correlation with a high Human Development Index, including evolutionarily conserved clades. Similarly, patterns of co-phylogeny between microbes and hosts are found to be disrupted in humans. Together with identifying individual microbial taxa and functional adaptations that correlate to host phylogeny, these findings offer insights into specific candidates playing a role in the diverging trajectories of the gut microbiome of hominids. We find that repeated horizontal gene transfer and gene loss, as well as the adaptation to transient microaerobic conditions appear to have played a role in the evolution of the human gut microbiome.
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Affiliation(s)
- M C Rühlemann
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany.
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.
| | - C Bang
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - J F Gogarten
- Applied Zoology and Nature Conservation, University of Greifswald, Greifswald, Germany
- Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), Greifswald, Germany
- Epidemiology of Highly Pathogenic Microorganisms, Robert Koch Institute, Berlin, Germany
- Viral Evolution, Robert Koch Institute, Berlin, Germany
| | - B M Hermes
- Evolutionary Genomics, Max Planck Institute for Evolutionary Biology, Plön, Germany
- Institute of Experimental Medicine, Kiel University, Kiel, Germany
| | - M Groussin
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - S Waschina
- Nutriinformatics Research Group, Institute for Human Nutrition and Food Science, Kiel University, Kiel, Germany
| | - M Poyet
- Institute of Experimental Medicine, Kiel University, Kiel, Germany
| | - M Ulrich
- Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), Greifswald, Germany
- Epidemiology of Highly Pathogenic Microorganisms, Robert Koch Institute, Berlin, Germany
| | - C Akoua-Koffi
- Training and Research Unit for in Medical Sciences, Alassane Ouattara University / University Teaching Hospital of Bouaké, Bouaké, Côte d'Ivoire
| | - T Deschner
- Comparative BioCognition, Institute of Cognitive Science, University of Osnabrück, Osnabrück, Germany
| | - J J Muyembe-Tamfum
- National Institute for Biomedical Research, National Laboratory of Public Health, Kinshasa, Democratic Republic of the Congo
| | - M M Robbins
- Department of Primate Behavior and Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - M Surbeck
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - R M Wittig
- Institute of Cognitive Sciences, CNRS UMR5229 University Lyon 1, Bron Cedex, France
- Taï Chimpanzee Project, CSRS, Abidjan, Côte d'Ivoire
| | - K Zuberbühler
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
- School of Psychology & Neuroscience, University of St Andrews, St Andrews, Scotland, UK
| | - J F Baines
- Evolutionary Genomics, Max Planck Institute for Evolutionary Biology, Plön, Germany
- Institute of Experimental Medicine, Kiel University, Kiel, Germany
| | - F H Leendertz
- Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), Greifswald, Germany
- Epidemiology of Highly Pathogenic Microorganisms, Robert Koch Institute, Berlin, Germany
| | - A Franke
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany.
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8
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Budzinski L, von Goetze V, Chang HD. Single-cell phenotyping of bacteria combined with deep sequencing for improved contextualization of microbiome analyses. Eur J Immunol 2024; 54:e2250337. [PMID: 37863831 DOI: 10.1002/eji.202250337] [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: 04/28/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 10/22/2023]
Abstract
Great effort was made to characterize the bacterial communities inhabiting the human body as a factor in disease, resulting in the realization that a wide spectrum of diseases is associated with an altered composition of the microbiome. However, the identification of disease-relevant bacteria has been hindered by the high cross-sectional diversity of individual microbiomes, and in most cases, it remains unclear whether the observed alterations are cause or consequence of disease. Hence, innovative analysis approaches are required that enable inquiries of the microbiome beyond mere taxonomic cataloging. This review highlights the utility of microbiota flow cytometry, a single-cell analysis platform to directly interrogate cellular interactions, cell conditions, and crosstalk with the host's immune system within the microbiome to take into consideration the role of microbes as critical interaction partners of the host and the spectrum of microbiome alterations, beyond compositional changes. In conjunction with advanced sequencing approaches it could reveal the genetic potential of target bacteria and advance our understanding of taxonomic diversity and gene usage in the context of the microenvironment. Single-cell bacterial phenotyping has the potential to change our perspective on the human microbiome and empower microbiome research for the development of microbiome-based therapy approaches and personalized medicine.
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Affiliation(s)
- Lisa Budzinski
- Schwiete Laboratory for Microbiota and Inflammation, German Rheumatism Research Centre Berlin - A Leibniz Institute, Berlin, Germany
| | - Victoria von Goetze
- Schwiete Laboratory for Microbiota and Inflammation, German Rheumatism Research Centre Berlin - A Leibniz Institute, Berlin, Germany
| | - Hyun-Dong Chang
- Schwiete Laboratory for Microbiota and Inflammation, German Rheumatism Research Centre Berlin - A Leibniz Institute, Berlin, Germany
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9
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Schutt CR, Yamasaki S. Lectin recruits pathogenic bugs. J Exp Med 2023; 220:e20221732. [PMID: 36413218 PMCID: PMC9684000 DOI: 10.1084/jem.20221732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Colitis is an irritable bowel disorder affecting about 7 million patients worldwide, but the causes are diverse and not fully understood. In this issue, Matute et al. (2022. J. Exp. Med.https://doi.org/10.1084/jem.20211938) found that a stress-induced lectin, intelectin-1, recruits pathogenic bacteria to the gut and exacerbates colitis.
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Affiliation(s)
- Charles R. Schutt
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka, Japan
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