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Shu T, Zhang J, Hu R, Zhou F, Li H, Liu J, Fan Y, Li X, Ding P. Qi Huang Fang improves intestinal barrier function and intestinal microbes in septic mice through NLRP3 inflammasome-mediated cellular pyroptosis. Transpl Immunol 2024; 85:102072. [PMID: 38857634 DOI: 10.1016/j.trim.2024.102072] [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: 12/08/2023] [Revised: 06/03/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
OBJECTIVE Sepsis has a high incidence, morbidity, and mortality rate and is a great threat to human safety. Gut health plays an important role in sepsis development. Qi Huang Fang (QHF) contains astragalus, rhubarb, zhishi, and atractylodes. It is used to treat syndromes of obstructive qi and deficiency of righteousness. This study aimed to investigate whether QHF improves intestinal barrier function and microorganisms in mice through NLRP3 inflammatory vesicle-mediated cellular focal death. METHODS A mouse model of sepsis was constructed by cecal ligation and puncture (CLP) of specific pathogen-free (SPF)-grade C57BL/6 mice after continuous gavage of low, medium, and high doses of astragalus formula or probiotics for 4 weeks. Twenty-four hours postoperatively, the mechanism of action of QHF in alleviating septic intestinal dysfunction and restoring intestinal microecology, thereby alleviating intestinal injury, was evaluated by pathological observation, immunohistochemistry, western blotting, ELISA, and 16S rDNA high-throughput sequencing. RESULTS Different doses of QHF and probiotics ameliorated intestinal injury and reduced colonic apoptosis in mice to varying degrees (P < 0.05). Meanwhile, different doses of QHF and probiotics were able to reduce the serum levels of IL-6, IL-1β, and TNF-α (P < 0.05); down-regulate the protein expression of NLRP3, caspase-1, and caspase-11 (P < 0.05); and up-regulate the protein expression of zonula occluden-1 (ZO-1) and occludin (P < 0.05), which improved the intestinal barrier function in mice. In addition, QHF decreased the relative abundance of harmful bacteria (Firmicutes, Muribaculaceae, Campilobacterota, Helicobacter, and Alistipes) and increased the relative abundance of beneficial bacteria (Bacteroidetes and Actinobacteria) (P < 0.05). CONCLUSION QHF improves intestinal barrier function and gut microbiology in mice via NLRP3 inflammasome-mediated cellular pyroptosis.
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Affiliation(s)
- Tingting Shu
- Department of Intensive Care Unit, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Jun Zhang
- Department of Intensive Care Unit, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Ruiying Hu
- Department of Emergency Medicine, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Fang Zhou
- Department of Emergency Medicine, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Hanyong Li
- Department of Intensive Care Unit, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Jing Liu
- Department of Medical, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Yanbo Fan
- Department of Science and Education Section, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Xucheng Li
- Department of Emergency Medicine, Wuhan Hospital of Traditional Chinese Medicine, China
| | - Peiwu Ding
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China.
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Yuan X, Li X, Hei G, Zhang X, Song X. Intestinal mycobiota dysbiosis associated inflammation activation in chronic schizophrenia. Behav Brain Res 2024; 472:115149. [PMID: 39013529 DOI: 10.1016/j.bbr.2024.115149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 07/03/2024] [Accepted: 07/12/2024] [Indexed: 07/18/2024]
Abstract
The microbiome-gut-brain axis is related to schizophrenia (SCZ). The role of intestinal mycobiota in SCZ has been under investigated. We present a half-year follow-up study involving 109 chronic SCZ patients and 77 healthy controls. Intestinal mycobiota was tested by internal transcribed spacer (ITS). Untargeted liquid chromatography-mass spectrometry (LC-MS) was used to measure fecal metabolites. Symptom severity was assessed using the Positive and Negative Syndrome Scale. Enterotype analysis showed that Candida-type patients exhibited severer positive symptoms and depression factors than Saccharomyces-type patients. Candida and its top species and operational taxonomic units (OTUs) were positively correlated with depression factors (all p=0.001). Fecal metabolites analysis showed that upregulated metabolites were associated with chronic inflammation (NF-κB pathway and T helper cell differentiation), downregulated metabolites were associated with glutamate metabolism, serotonergic and dopaminergic synapse. Procrustes analysis revealed significant correlation between intestinal mycobiota and fecal metabolites (M2=0.937, p<0.001). Metabolic module analysis showed that the top module, MEturquoise (associated with Th1 and Th2 cell differentiation), was negatively correlated with SCZ (r=-0.783, p<0.0001), positively correlated with Candida, Aspergillus, Trichosporon and Talaromyces (decreased in SCZ) and negatively correlated with Saccharomyces (increased in SCZ). We also found impairments of intestinal barrier in SCZ, characterized by increased in blood D-lactate (mucosa impairment marker) and decreased in blood mucin 2 (mucosal barrier protective protein). Serum levels of TNF-α was increased and showed stable high levels during treatment. This study suggests that mycobiota dysbiosis-related chronic inflammation and an impaired intestinal mucosal barrier are associated with chronic SCZ.
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Affiliation(s)
- Xiuxia Yuan
- Department of Psychiatry, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan International Joint Laboratory of Biological Psychiatry, Zhengzhou, China; Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
| | - Xue Li
- Department of Psychiatry, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan International Joint Laboratory of Biological Psychiatry, Zhengzhou, China; Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
| | - Gangrui Hei
- Department of Psychiatry, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan International Joint Laboratory of Biological Psychiatry, Zhengzhou, China; Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
| | - Xiaoyun Zhang
- Department of Psychiatry, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan International Joint Laboratory of Biological Psychiatry, Zhengzhou, China; Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China
| | - Xueqin Song
- Department of Psychiatry, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan International Joint Laboratory of Biological Psychiatry, Zhengzhou, China; Henan Psychiatric Transformation Research Key Laboratory, Zhengzhou University, Zhengzhou, China.
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Sun J, Li J, Deng Y, Yin X, Huangfu X, Ye Z, Zhou X, Chen Y, Yuan S, Wang X. The beneficial effects of neutrophil elastase inhibitor on gastrointestinal dysfunction in sepsis. Clin Transl Sci 2024; 17:e13829. [PMID: 38769746 PMCID: PMC11106555 DOI: 10.1111/cts.13829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 04/09/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024] Open
Abstract
To investigate the effects of neutrophil elastase inhibitor (sivelestat sodium) on gastrointestinal function in sepsis. A reanalysis of the data from previous clinical trials conducted at our center was performed. Septic patients were divided into either the sivelestat group or the non-sivelestat group. The gastrointestinal dysfunction score (GIDS), feeding intolerance (FI) incidence, serum levels of intestinal barrier function and inflammatory biomarkers were recorded. The clinical severity and outcome variables were also documented. A total of 163 septic patients were included. The proportion of patients with GIDS ≥2 in the sivelestat group was reduced relative to that in the non-sivelestat group (9.6% vs. 22.5%, p = 0.047) on the 7th day of intensive care unit (ICU) admission. The FI incidence was also remarkably reduced in the sivelestat group in contrast to that in the non-sivelestat group (21.2% vs. 37.8%, p = 0.034). Furthermore, the sivelestat group had fewer days of FI [4 (3, 4) vs. 5 (4-6), p = 0.008]. The serum levels of d-lactate (p = 0.033), intestinal fatty acid-binding protein (p = 0.005), interleukin-6 (p = 0.001), white blood cells (p = 0.007), C-reactive protein (p = 0.001), and procalcitonin (p < 0.001) of the sivelestat group were lower than those of the non-sivelestat group. The sivelestat group also demonstrated longer ICU-free days [18 (0-22) vs. 13 (0-17), p = 0.004] and ventilator-free days [22 (1-24) vs. 16 (1-19), p = 0.002] compared with the non-sivelestat group. In conclusion, sivelestat sodium administration appears to improve gastrointestinal dysfunction, mitigate dysregulated inflammation, and reduce disease severity in septic patients.
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Affiliation(s)
- Jia‐Kui Sun
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Jing‐Jing Li
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Yi‐Hang Deng
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Xiang Yin
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Xiao‐Tian Huangfu
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Zi‐Yu Ye
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Xue‐Hui Zhou
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Yong‐Ming Chen
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Shou‐Tao Yuan
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
| | - Xiang Wang
- Department of Critical Care Medicine, Nanjing First HospitalNanjing Medical UniversityNanjingJiangsuChina
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Abstract
The remarkable diversity of lymphocytes, essential components of the immune system, serves as an ingenious mechanism for maximizing the efficient utilization of limited host defense resources. While cell adhesion molecules, notably in gut-tropic T cells, play a central role in this mechanism, the counterbalancing molecular details have remained elusive. Conversely, we've uncovered the molecular pathways enabling extracellular vesicles secreted by lymphocytes to reach the gut's mucosal tissues, facilitating immunological regulation. This discovery sheds light on immune fine-tuning, offering insights into immune regulation mechanisms.
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Affiliation(s)
- Yasunari Matsuzaka
- Division of Molecular and Medical Genetics, Center for Gene and Cell Therapy, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
- Administrative Section of Radiation Protection, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
| | - Ryu Yashiro
- Administrative Section of Radiation Protection, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
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Liang S, Wang S, Xu B, Ping L, Evivie SE, Zhao L, Chen Q, Li B, Huo G. Effects of microbiota-directed supplementary foods on gut microbiota in fecal colonized mice of healthy infants. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Donnelly EL, Céspedes N, Hansten G, Wagers D, Briggs AM, Lowder C, Schauer J, Haapanen L, Van de Water J, Luckhart S. The Basophil IL-18 Receptor Precisely Regulates the Host Immune Response and Malaria-Induced Intestinal Permeability and Alters Parasite Transmission to Mosquitoes without Effect on Gametocytemia. Immunohorizons 2022; 6:630-641. [PMID: 35985797 PMCID: PMC9977167 DOI: 10.4049/immunohorizons.2200057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 07/18/2022] [Indexed: 02/03/2023] Open
Abstract
We have recently demonstrated that basophils are protective against intestinal permeability during malaria and contribute to reduced parasite transmission to mosquitoes. Given that IL-18 is an early cytokine/alarmin in malaria and has been shown to activate basophils, we sought to determine the role of the basophil IL-18R in this protective phenotype. To address this, we infected control [IL18r flox/flox or basoIL-18R (+)] mice and mice with basophils lacking the IL-18R [IL18r flox/flox × Basoph8 or basoIL-18R (-)] with Plasmodium yoelii yoelii 17XNL, a nonlethal strain of mouse malaria. Postinfection (PI), intestinal permeability, ileal mastocytosis, bacteremia, and levels of ileal and plasma cytokines and chemokines were measured through 10 d PI. BasoIL-18R (-) mice exhibited greater intestinal permeability relative to basoIL-18R (+) mice, along with increased plasma levels of proinflammatory cytokines at a single time point PI, day 4 PI, a pattern not observed in basoIL-18R (+) mice. Surprisingly, mosquitoes fed on basoIL-18R (-) mice became infected less frequently than mosquitoes fed on basoIL-18R (+) mice, with no difference in gametocytemia, a pattern that was distinct from that observed previously with basophil-depleted mice. These findings suggest that early basophil-dependent protection of the intestinal barrier in malaria is mediated by IL-18, and that basophil IL-18R-dependent signaling differentially regulates the inflammatory response to infection and parasite transmission.
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Affiliation(s)
- Erinn L Donnelly
- Department of Biological Sciences, University of Idaho, Moscow, ID
| | - Nora Céspedes
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Gretchen Hansten
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Delaney Wagers
- Department of Biological Sciences, University of Idaho, Moscow, ID
| | - Anna M Briggs
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Casey Lowder
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Joseph Schauer
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA
| | - Lori Haapanen
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA
| | - Judy Van de Water
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA
| | - Shirley Luckhart
- Department of Biological Sciences, University of Idaho, Moscow, ID; .,Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
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Sun JK, Zhang Q, Shen X, Zhou J, Wang X, Zhou SM, Mu XW. Integrin αEβ7 is involved in the intestinal barrier injury of sepsis. Aging (Albany NY) 2022; 14:780-788. [PMID: 35042191 PMCID: PMC8833114 DOI: 10.18632/aging.203839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 01/11/2022] [Indexed: 11/25/2022]
Abstract
Background: IL-9-producing CD4(+) T (Th9) cell was related to acute intestinal barrier injury in sepsis. Integrin αEβ7 was an important lymphocyte homing receptor on the surface of intestinal Th9 cells. However, the roles of αEβ7 in the intestinal injury caused by Th9 cells were not clear in sepsis. Methods: To investigate the roles of αEβ7 in the intestinal injury caused by Th9 cells in sepsis model, the Th9 cells percentages, αEβ7, E-cadherin, IL-9, and D-lactate levels in both serum and intestinal tissue were measured. The intestinal histopathology, epithelium apoptosis, and mucosal permeability measurement were also performed. The survival rate of septic rats was recorded daily for 14 days. Results: Rats were assigned to four cohorts: control cohort, sepsis cohort, sepsis+αEβ7i (αEβ7 inhibition) cohort, and sepsis+αEβ7e (αEβ7 overexpression) cohort. The Th9 cells percentages, αEβ7, IL-9, and D-lactate levels of the sepsis cohort were significantly higher than those of the control cohort. The levels of these variables were also elevated progressively in the sepsis+αEβ7i cohort, sepsis cohort, and sepsis+αEβ7e cohort. The E-cadherin levels were decreased progressively in the control cohort, sepsis+αEβ7i cohort, sepsis cohort, and sepsis+αEβ7e cohort. Moreover, αEβ7 overexpression could decrease the 14-day survival rate. The findings of histopathology staining, apoptosis detection, and intestinal permeability test also confirmed that the barrier injury was deteriorated or relieved by elevating or decreasing the αEβ7 expression levels, respectively. Conclusions: Integrin αEβ7 was closely associated with the intestinal barrier injury caused by Th9 lymphocytes in sepsis.
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Affiliation(s)
- Jia-Kui Sun
- Department of Geriatrics Intensive Care Unit, The First Affiliated Hospital of Nanjing Medical University (Jiangsu Province People's Hospital), Nanjing 210029, Jiangsu Province, China.,Department of Critical Care Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu Province, China
| | - Qian Zhang
- Department of Geriatrics Intensive Care Unit, The First Affiliated Hospital of Nanjing Medical University (Jiangsu Province People's Hospital), Nanjing 210029, Jiangsu Province, China
| | - Xiao Shen
- Department of Critical Care Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu Province, China
| | - Jing Zhou
- Department of Geriatrics Intensive Care Unit, The First Affiliated Hospital of Nanjing Medical University (Jiangsu Province People's Hospital), Nanjing 210029, Jiangsu Province, China
| | - Xiang Wang
- Department of Critical Care Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu Province, China
| | - Su-Ming Zhou
- Department of Geriatrics Intensive Care Unit, The First Affiliated Hospital of Nanjing Medical University (Jiangsu Province People's Hospital), Nanjing 210029, Jiangsu Province, China
| | - Xin-Wei Mu
- Department of Critical Care Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu Province, China
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