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Ye K, Lin X, Chen TZ, Wang LH, Liu SX. Heparin-Binding Protein Promotes Acute Lung Injury in Sepsis Mice by Blocking the Aryl Hydrocarbon Receptor Signaling Pathway. J Inflamm Res 2024; 17:2927-2938. [PMID: 38764496 PMCID: PMC11100518 DOI: 10.2147/jir.s454777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 04/25/2024] [Indexed: 05/21/2024] Open
Abstract
Purpose This study aimed to explore the therapeutic effect and potential mechanism of heparin-binding protein (HBP) reduction on sepsis-related acute lung injury. Methods We utilized a murine model of sepsis-induced by intraperitoneal injection of lipopolysaccharides (LPS) in C57BL/6J mice divided into four groups: Control, LPS, Anti-HBP, and ceftriaxone (CEF). Following sepsis induction, Anti-HBP or CEF treatments were administered, and survival rates were monitored for 48 h. We then used reverse-transcription quantitative PCR to analyze the expression levels of HBP in lung tissues, immunohistochemistry for protein localization, and Western blotting for protein quantification. Pulmonary inflammation was assessed using enzyme-linked immunosorbent assays of proinflammatory cytokines (tumor necrosis factor-α, interleukin [IL]-1β, IL-6, and interferon-γ). The activation state of the aryl hydrocarbon receptor (AhR) signaling pathway was determined via Western blotting, evaluating both cytoplasmic and nuclear localization of AhR and the expression of cytochrome P450 1A1 protein by its target gene. Results Anti-HBP specifically reduced HBP levels. The survival rate of mice in the Anti-HBP and CEF groups was much higher than that in the LPS group. The severity of lung injury and pulmonary inflammatory response in the Anti-HBP and CEF groups was significantly lower than that in the LPS group. AhR signaling pathway activation was observed in the Anti-HBP and CEF groups. Additionally, there was no significant difference in the above indices between the Anti-HBP and CEF groups. Conclusion HBP downregulation in lung tissues significantly improved LPS-induced lung injury and the pulmonary inflammatory response, thereby prolonging the survival of sepsis mice, suggesting activation of the AhR signaling pathway. Moreover, the effect of lowering the HBP level was equivalent to that of the classical antibiotic CEF. Trial Registration Not applicable.
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Affiliation(s)
- Kun Ye
- Department of Orthopaedics, Qiantang Campus of Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang, 310018, People’s Republic of China
| | - Xiang Lin
- Department of Orthopaedics, The Second Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, Hainan, 570311, People’s Republic of China
| | - Tai-Zhi Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, Hainan, 570311, People’s Republic of China
| | - Long-Hui Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, Hainan, 570311, People’s Republic of China
| | - Sheng-Xing Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, Hainan, 570311, People’s Republic of China
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Liu A, Garrett S, Hong W, Zhang J. Staphylococcus aureus Infections and Human Intestinal Microbiota. Pathogens 2024; 13:276. [PMID: 38668232 PMCID: PMC11053856 DOI: 10.3390/pathogens13040276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/18/2024] [Accepted: 03/23/2024] [Indexed: 04/29/2024] Open
Abstract
Staphylococcus aureus (S. aureus) is a common pathogen that can cause many human diseases, such as skin infection, food poisoning, endocarditis, and sepsis. These diseases can be minor infections or life-threatening, requiring complex medical management resulting in substantial healthcare costs. Meanwhile, as the critically ignored "organ," the intestinal microbiome greatly impacts physiological health, not only in gastrointestinal diseases but also in disorders beyond the gut. However, the correlation between S. aureus infection and intestinal microbial homeostasis is largely unknown. Here, we summarized the recent progress in understanding S. aureus infections and their interactions with the microbiome in the intestine. These summarizations will help us understand the mechanisms behind these infections and crosstalk and the challenges we are facing now, which could contribute to preventing S. aureus infections, effective treatment investigation, and vaccine development.
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Affiliation(s)
- Aotong Liu
- Department of Pharmacology & Regenerative Medicine, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA;
| | - Shari Garrett
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA;
- Department of Microbiology and Immunology, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Wanqing Hong
- Faculty of Science, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
- School of Chemistry & Chemical Engineering and Materials Sciences, Shandong Normal University, Jinan 250061, China
| | - Jilei Zhang
- Department of Pharmacology & Regenerative Medicine, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA;
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Niu C, Lv W, Zhu X, Dong Z, Yuan K, Jin Q, Zhang P, Li P, Mao M, Dong T, Chen Z, Luo J, Hou L, Zhang C, Hao K, Chen S, Huang Z. Intestinal Translocation of Live Porphyromonas gingivalis Drives Insulin Resistance. J Dent Res 2024; 103:197-207. [PMID: 38185909 DOI: 10.1177/00220345231214195] [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] [Indexed: 01/09/2024] Open
Abstract
Periodontitis has been emphasized as a risk factor of insulin resistance-related systemic diseases. Accumulating evidence has suggested a possible "oral-gut axis" linking oral infection and extraoral diseases, but it remains unclear whether periodontal pathogens can survive the barriers of the digestive tract and how they play their pathogenic roles. The present study established a periodontitis mouse model through oral ligature plus Porphyromonas gingivalis inoculation and demonstrated that periodontitis aggravated diet-induced obesity and insulin resistance, while also causing P. gingivalis enrichment in the intestine. Metabolic labeling strategy validated that P. gingivalis could translocate to the gastrointestinal tract in a viable state. Oral administration of living P. gingivalis elicited insulin resistance, while administration of pasteurized P. gingivalis had no such effect. Combination analysis of metagenome sequencing and nontargeted metabolomics suggested that the tryptophan metabolism pathway, specifically indole and its derivatives, was involved in the pathogenesis of insulin resistance caused by oral administration of living P. gingivalis. Moreover, liquid chromatography-high-resolution mass spectrometry analysis confirmed that the aryl hydrocarbon receptor (AhR) ligands, mainly indole acetic acid, tryptamine, and indole-3-aldehyde, were reduced in diet-induced obese mice with periodontitis, leading to inactivation of AhR signaling. Supplementation with Ficz (6-formylindolo (3,2-b) carbazole), an AhR agonist, alleviated periodontitis-associated insulin resistance, in which the restoration of gut barrier function might play an important role. Collectively, these findings reveal that the oral-gut translocation of viable P. gingivalis works as a fuel linking periodontitis and insulin resistance, in which reduction of AhR ligands and inactivation of AhR signaling are involved. This study provides novel insight into the role of the oral-gut axis in the pathogenesis of periodontitis-associated comorbidities.
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Affiliation(s)
- C Niu
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - W Lv
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, P. R. China
| | - X Zhu
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - Z Dong
- Department of Oral Implantology, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, P. R. China
| | - K Yuan
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - Q Jin
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - P Zhang
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - P Li
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - M Mao
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - T Dong
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - Z Chen
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - J Luo
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
| | - L Hou
- Department of Nursing, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - C Zhang
- Department of Oral Implantology, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, P. R. China
| | - K Hao
- Department of Oral Implantology, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, P. R. China
| | - S Chen
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, P. R. China
- Department of Oral Implantology, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, P. R. China
| | - Z Huang
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, P. R. China
- National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai, P. R. China
- Shanghai Key Laboratory of Stomatology, Shanghai, P. R. China
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Fu J, Zhu F, Xu CJ, Li Y. Metabolomics meets systems immunology. EMBO Rep 2023; 24:e55747. [PMID: 36916532 PMCID: PMC10074123 DOI: 10.15252/embr.202255747] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 12/24/2022] [Accepted: 02/24/2023] [Indexed: 03/16/2023] Open
Abstract
Metabolic processes play a critical role in immune regulation. Metabolomics is the systematic analysis of small molecules (metabolites) in organisms or biological samples, providing an opportunity to comprehensively study interactions between metabolism and immunity in physiology and disease. Integrating metabolomics into systems immunology allows the exploration of the interactions of multilayered features in the biological system and the molecular regulatory mechanism of these features. Here, we provide an overview on recent technological developments of metabolomic applications in immunological research. To begin, two widely used metabolomics approaches are compared: targeted and untargeted metabolomics. Then, we provide a comprehensive overview of the analysis workflow and the computational tools available, including sample preparation, raw spectra data preprocessing, data processing, statistical analysis, and interpretation. Third, we describe how to integrate metabolomics with other omics approaches in immunological studies using available tools. Finally, we discuss new developments in metabolomics and its prospects for immunology research. This review provides guidance to researchers using metabolomics and multiomics in immunity research, thus facilitating the application of systems immunology to disease research.
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Affiliation(s)
- Jianbo Fu
- Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany.,TWINCORE Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany.,College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Feng Zhu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Cheng-Jian Xu
- Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany.,TWINCORE Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany.,Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Yang Li
- Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany.,TWINCORE Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany.,Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
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