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Zhao Y, Zhou Z, Cai G, Zhang D, Yu X, Li D, Li S, Zhang Z, Zhang D, Luo J, Hu Y, Gao A, Zhang H. Systemic infection by Candida albicans requires FASN-α subunit induced cell wall remodeling to perturb immune response. PLoS Pathog 2025; 21:e1012865. [PMID: 40138332 PMCID: PMC11940687 DOI: 10.1371/journal.ppat.1012865] [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: 11/07/2024] [Accepted: 12/29/2024] [Indexed: 03/29/2025] Open
Abstract
Invasive fungal infections are a leading cause of mortality and morbidity in patients with severely impaired host defenses, while treatment options remain limited. Fatty acid synthase (FASN), the key enzyme regulating de novo biosynthesis of fatty acids, is crucial for the lethal infection of fungi; however, its pathogenic mechanism is still far from clear. Here, we identified the α subunit of FASN as a potential immunotherapeutic target against systemic Candida albicans infection. The avirulence of the encoded gene (FAS2) -deleted mutant in a mouse model of systemic candidiasis is not due to its fitness defects, because sufficient exogenous fatty acids in serum can overcome FASN inhibition. However, the FAS2-deleted mutant displays increased circulating innate immune responses and enhances activated neutrophil fungicidal activity through the unmasking of immunogenic cell wall epitopes via the Rho-1 dependent Mkc1-MAPK signaling pathway, which facilitates fungal clearance, reduces renal tissue damage and inflammatory cell infiltration, ultimately lowers fungal pathogenicity. Priming with the FAS2-deleted mutant provided significant protection against subsequent lethal infection with wild-type C. albicans in mice as early as one week, and it was well-tolerated with limited toxicity. Our findings indicate that the FASN-α subunit plays key roles in the regulation of neutrophil-associated antifungal immunity and could be a potential target for immunotherapeutic intervention.
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Affiliation(s)
- Yajing Zhao
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Zhishan Zhou
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Guiyue Cai
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Dandan Zhang
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Xiaoting Yu
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Dongmei Li
- Department of Microbiology and Immunology, Georgetown University Medical Center, Washington District of Columbia, United States of America
| | - Shuixiu Li
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Zhanpeng Zhang
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Dongli Zhang
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Jiyao Luo
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Yunfeng Hu
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Aili Gao
- Guangzhou Dermatology Hospital, Guangzhou, China
| | - Hong Zhang
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Institute of Mycology, Jinan University, Guangzhou, China
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2
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Vrsaljko N, Radmanic Matotek L, Zidovec-Lepej S, Vince A, Papic N. The Impact of Steatotic Liver Disease on Cytokine and Chemokine Kinetics During Sepsis. Int J Mol Sci 2025; 26:2226. [PMID: 40076848 PMCID: PMC11900930 DOI: 10.3390/ijms26052226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2025] [Revised: 02/26/2025] [Accepted: 02/28/2025] [Indexed: 03/14/2025] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) has recently been linked with sepsis outcomes. However, the immune mechanisms by which MASLD aggravates sepsis severity are unknown. This prospective cohort study aimed to analyze serum cytokine and chemokine kinetics in patients with MASLD and community-acquired sepsis. Out of the 124 patients, 68 (55%) were diagnosed with MASLD. There were no differences in age, sex, comorbidities, baseline sepsis severity, or etiology between the groups. Serum concentrations of 27 cytokines and chemokines on admission and day 5 of hospitalization were analyzed using a multiplex bead-based assay. Patients with MASLD had significantly higher serum concentrations of IL17A, IL-23, IL-33, CXCL10 and TGF-β1. Different cytokine kinetics were observed; patients with MASLD had a decrease in IL-10, IL-23, CXCL10 and TGF-β1, and an increase in IL-33, CXCL5 and CXCL1 on day 5. In the non-MASLD group, there was a decrease in IFN-γ, IL-6, IL-23 and CCL20, and an increase in CCL11 and CXCL5. While TGF-β1 significantly increased in non-MASLD, in MASLD, it decreased on day 5. Kinetics of TGF- β1 and CCL11 were associated with mortality in patients with MASLD. In conclusion, MASLD is linked with distinct cytokine and chemokine profiles during sepsis.
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Affiliation(s)
- Nina Vrsaljko
- Emergency Infectious Diseases Department, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, 10000 Zagreb, Croatia;
| | - Leona Radmanic Matotek
- Department for Immunological and Molecular Diagnostics, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, 10000 Zagreb, Croatia; (L.R.M.); (S.Z.-L.)
| | - Snjezana Zidovec-Lepej
- Department for Immunological and Molecular Diagnostics, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, 10000 Zagreb, Croatia; (L.R.M.); (S.Z.-L.)
| | - Adriana Vince
- Department for Viral Hepatitis, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, 10000 Zagreb, Croatia;
| | - Neven Papic
- Department for Viral Hepatitis, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, 10000 Zagreb, Croatia;
- Department for Infectious Diseases, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
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3
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Chang TD, Chen YJ, Luo JL, Zhang C, Chen SY, Lin ZQ, Zhang PD, Shen YX, Tang TX, Li H, Dong LM, Tang ZH, Chen D, Wang YM. Adaptation of Natural Killer Cells to Hypoxia: A Review of the Transcriptional, Translational, and Metabolic Processes. Immunotargets Ther 2025; 14:99-121. [PMID: 39990274 PMCID: PMC11846490 DOI: 10.2147/itt.s492334] [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: 08/21/2024] [Accepted: 02/08/2025] [Indexed: 02/25/2025] Open
Abstract
As important innate immune cells, natural killer (NK) cells play an essential role in resisting pathogen invasion and eliminating transformed cells. However, the hypoxic microenvironment caused by disease conditions is an important physicochemical factor that impairs NK cell function. With the increasing prominence of NK cells in immunotherapy, there has been a surge of interest in developing biological means through which NK cells may overcome the inhibition caused by hypoxia in disease conditions. Although the effects of hypoxic conditions in shaping the functions of NK cells have been increasingly recognized and investigated, reviews have been scantly. A comprehensive understanding of how NK cells adapt to hypoxia can provide valuable insights into how the functional capacity of NK cells may be restored. This review focuses on the functional alterations of NK cells in response to hypoxia. It delineates the mechanisms by which NK cells adapt to hypoxia at the transcriptional, metabolic, translational levels. Furthermore, given the complexity of the hypoxic microenvironment, we also elucidated the effects of key hypoxic metabolites on NK cells. Finally, this review discusses the current clinical therapies derived from targeting hypoxic NK cells. The study of NK cell adaptation to hypoxia has yielded new insights into immunotherapy. These insights may lead to development of novel strategies to improve the treatment of infectious diseases and cancer.
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Affiliation(s)
- Te-Ding Chang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yu-Jie Chen
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Jia-Liu Luo
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Cong Zhang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Shun-Yao Chen
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Zhi-Qiang Lin
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Pei-Dong Zhang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - You-Xie Shen
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Ting-Xuan Tang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People’s Republic of China
| | - Hui Li
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Li-Ming Dong
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Zhao-Hui Tang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Deng Chen
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yu-Man Wang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People’s Republic of China
- Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People’s Republic of China
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Yu J, Liu X, Ke W, Ye L, Wu C, Yu H, Wang H, Wang L, Zhao Y, Xu Y. Establishment of a Mouse Intravenous Challenge Model for Predicting Virulence in Yarrowia lipolytica Disseminated Infection. Mycopathologia 2025; 190:21. [PMID: 39891764 DOI: 10.1007/s11046-025-00930-0] [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: 04/23/2024] [Accepted: 12/23/2024] [Indexed: 02/03/2025]
Abstract
Invasive fungal infections pose a significant health threat. Yarrowia lipolytica (formerly known as Candida lipolytica) is an opportunistic yeast with pathogenic potential, but its virulence and impact on the host remain poorly understood. This study aimed to investigate the infection characteristics associated with this relatively unknown pathogen by establishing reliable animal models. We developed intravenous challenge models in immunocompetent and immunosuppressed BALB/c mice by injecting fungal cells directly into the bloodstream. In immunocompetent mice, Y. lipolytica was effectively cleared even at the highest challenge dose of 1 × 10⁸ cells, resulting in minimal mortality. However, this clearance was accompanied by a significant elevation in peripheral blood cytokine levels. Three days post-infection, the fungal burden was highest in the lungs (P < 0.0001), followed by the spleen, kidneys, liver, and brain. In immunosuppressed mice, the mortality rate following Y. lipolytica infection significantly increased (P < 0.001), with the highest fungal burden consistently observed in the lungs. In the immunosuppressed model, clinical isolates exhibited a greater lung fungal burden compared to industrial isolate. In conclusion, Y. lipolytica is a low-virulence fungus that is challenging to establish as a fatal infection in immunocompetent hosts but exhibits a marked tropism for the lungs, where lung fungal burden serves as an effective indicator of virulence. This model may also provide critical insights for studying fungal pulmonary infection pathogenesis and the infection dynamics of Y. lipolytica, especially for immunocompromised patients.
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Affiliation(s)
- Jinhan Yu
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xueqing Liu
- Department of Clinical Laboratory, Yongzhou Central Hospital, Yongzhou, 425000, China
| | - Weixin Ke
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Leixin Ye
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Changsheng Wu
- Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, 350004, China
| | - Hua Yu
- Department of Laboratory Medicine, Sichuan Academy of Medical Sciences and Sichuan, Provincial People's Hospital, Chengdu, 610072, China
| | - Han Wang
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha, 410013, China
| | - Linqi Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Zhao
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China.
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China.
| | - Yingchun Xu
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China.
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China.
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5
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Qin Y, Qian Y, Liu S, Chen R. A double-edged sword role of IFN-γ-producing iNKT cells in sepsis: Persistent suppression of Treg cell formation in an Nr4a1-dependent manner. iScience 2024; 27:111462. [PMID: 39720538 PMCID: PMC11667017 DOI: 10.1016/j.isci.2024.111462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 10/17/2024] [Accepted: 11/20/2024] [Indexed: 12/26/2024] Open
Abstract
Sepsis, a leading cause of mortality in intensive care units worldwide, lacks effective treatments for advanced-stage sepsis. Therefore, understanding the underlying mechanisms of this disease is crucial. This study reveals that invariant natural killer T (iNKT) cells have an opposing role in the progression of sepsis by suppressing regulatory T (Treg) cell differentiation and function. The activation of iNKT cells by α-Galcer enhances interferon (IFN)-γ production. Blocking antibodies or transferring IFN-γ-deficient iNKT cells demonstrates that iNKT cells inhibit Treg differentiation through IFN-γ production. Additionally, iNKT cell-mediated Treg inhibition prevents secondary infection caused by Listeria monocytogenes during the post-septic phase. The transcriptomic analysis of Treg cells further reveals that the suppressive function of Tregs is impaired by iNKT cells. Finally, we demonstrate that iNKT cells inhibit Treg differentiation in an Nr4a1-dependent manner. Our data uncover the dual function of iNKT cells in sepsis progression and provide a potential treatment target for this adverse long-term outcome induced by sepsis.
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Affiliation(s)
- Yingyu Qin
- Department of Pathogenic Biology and Immunology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Yilin Qian
- Department of Pathogenic Biology and Immunology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Shengqiu Liu
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Rong Chen
- The Affiliated Zhongda Hospital, Clinical Medical College, Southeast University, Nanjing, Jiangsu, China
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6
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Luo J, Zhang C, Chen D, Chang T, Chen S, Lin Z, Yi C, Tang ZH. Tim-3 pathway dysregulation and targeting in sepsis-induced immunosuppression. Eur J Med Res 2024; 29:583. [PMID: 39696711 PMCID: PMC11656820 DOI: 10.1186/s40001-024-02203-w] [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: 07/18/2024] [Accepted: 12/05/2024] [Indexed: 12/20/2024] Open
Abstract
Sepsis is a major medical problem which causes millions of deaths worldwide every year. The host immune response in sepsis is characterized by acute inflammation and a simultaneous state of immunosuppression. In the later stage of sepsis, immunosuppression is a crucial factor that increases the susceptibility of septic patients to secondary infection and mortality. It is characterized by T cell exhaustion, excessive production of anti-inflammatory cytokines, hyperproliferation of immune suppressor cells and aberrant expression of immune checkpoint molecules. T cell immunoglobulin and mucin domain 3 (Tim-3), an immune checkpoint molecule, is found on the surface of various cells, including macrophages, NK cells, NKT cells, and T cells. There are four different ligands for Tim-3, and accumulating evidence indicates that Tim-3 and its ligands play a crucial role in regulating immune cell dysfunction during sepsis. Anti-Tim-3 antibodies have been applied in the field of cancer immunotherapy and have achieved positive therapeutic effects in some clinical trials. However, the therapeutic efficacy of Tim-3 blockade is still controversial in animal models of sepsis. These challenges highlight the need for a deeper understanding of Tim-3 signaling in sepsis. This review examines the comprehensive effect of Tim-3 signaling in the development of sepsis-induced immunosuppression and the therapeutic efficacy of Tim-3 blockade.
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Affiliation(s)
- Jialiu Luo
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cong Zhang
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Deng Chen
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Teding Chang
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shunyao Chen
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiqiang Lin
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chengla Yi
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Zhao-Hui Tang
- Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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7
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Tamura T, Cheng C, Villaseñor-Altamirano A, Yamada K, Ikeda K, Hayashida K, Menon JA, Chen XD, Chung H, Varon J, Chen J, Choi J, Cullen AM, Guo J, Lin X, Olenchock BA, Pinilla-Vera MA, Manandhar R, Sheikh MDA, Hou PC, Lawler PR, Oldham WM, Seethala RR, Baron RM, Bohula EA, Morrow DA, Blumberg RS, Chen F, Merriam LT, Weissman AJ, Brenner MB, Chen X, Ichinose F, Kim EY. Diverse NKT cells regulate early inflammation and neurological outcomes after cardiac arrest and resuscitation. Sci Transl Med 2024; 16:eadq5796. [PMID: 39630883 PMCID: PMC11792709 DOI: 10.1126/scitranslmed.adq5796] [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: 06/23/2024] [Accepted: 09/30/2024] [Indexed: 12/07/2024]
Abstract
Neurological injury drives most deaths and morbidity among patients hospitalized for out-of-hospital cardiac arrest (OHCA). Despite its clinical importance, there are no effective pharmacological therapies targeting post-cardiac arrest (CA) neurological injury. Here, we analyzed circulating immune cells from a large cohort of patients with OHCA, finding that lymphopenia independently associated with poor neurological outcomes. Single-cell RNA sequencing of immune cells showed that T cells with features of both innate T cells and natural killer (NK) cells were increased in patients with favorable neurological outcomes. We more specifically identified an early increase in circulating diverse NKT (dNKT) cells in a separate cohort of patients with OHCA who had good neurological outcomes. These cells harbored a diverse T cell receptor repertoire but were consistently specific for sulfatide antigen. In mice, we found that sulfatide-specific dNKT cells trafficked to the brain after CA and resuscitation. In the brains of mice lacking NKT cells (Cd1d-/-), we observed increased inflammatory chemokine and cytokine expression and accumulation of macrophages when compared with wild-type mice. Cd1d-/- mice also had increased neuronal injury, neurological dysfunction, and worse mortality after CA. To therapeutically enhance dNKT cell activity, we treated mice with sulfatide lipid after CA, showing that it improved neurological function. Together, these data show that sulfatide-specific dNKT cells are associated with good neurological outcomes after clinical OHCA and are neuroprotective in mice after CA. Strategies to enhance the number or function of dNKT cells may thus represent a treatment approach for CA.
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Affiliation(s)
- Tomoyoshi Tamura
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
- Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Changde Cheng
- Department of Computational Biology, St Jude Children’s Research Hospital, Nashville 38105, TN
- Department of Medicine, Division of Hematology and Oncology, Stem Cell Biology Program, University of Alabama at Birmingham, Birmingham 35233, AL
| | - Ana Villaseñor-Altamirano
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
| | - Kohei Yamada
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
| | - Kohei Ikeda
- Harvard Medical School; Boston, MA 02115
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston 02114, MA
| | - Kei Hayashida
- Harvard Medical School; Boston, MA 02115
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston 02114, MA
| | - Jaivardhan A Menon
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
| | - Xi Dawn Chen
- Broad Institute of Harvard and MIT, Cambridge 02138, MA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA
| | - Hattie Chung
- Broad Institute of Harvard and MIT, Cambridge 02138, MA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA
| | - Jack Varon
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
| | - Jiani Chen
- Department of Computational Biology, St Jude Children’s Research Hospital, Nashville 38105, TN
| | - Jiyoung Choi
- Department of Medicine, Division of Rheumatology, Inflammation and Immunity, Brigham and Women’s Hospital, Boston 02115, MA
| | - Aidan M. Cullen
- Department of Medicine, Division of Rheumatology, Inflammation and Immunity, Brigham and Women’s Hospital, Boston 02115, MA
| | - Jingyu Guo
- Department of Medicine, Division of Rheumatology, Inflammation and Immunity, Brigham and Women’s Hospital, Boston 02115, MA
| | - Xi Lin
- Harvard Medical School; Boston, MA 02115
- Department of Medicine, Division of Gastroenterology, Brigham and Women’s Hospital, Boston, MA 02142, USA
| | - Benjamin A. Olenchock
- Harvard Medical School; Boston, MA 02115
- Department of Medicine, Division of Cardiovascular Division, Brigham and Women’s Hospital, Boston 02115, MA
| | - Mayra A. Pinilla-Vera
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
| | - Reshmi Manandhar
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
| | - Muhammad Dawood Amir Sheikh
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
| | - Peter C. Hou
- Harvard Medical School; Boston, MA 02115
- Department of Emergency Medicine, Division of Emergency and Critical Care Medicine, Brigham and Women’s Hospital, Boston 02115, MA
| | - Patrick R. Lawler
- McGill University Health Centre, Montreal, Quebec H3A 2B4, Canada
- University of Toronto, Toronto, Ontario M5R 0A3, Canada
| | - William M. Oldham
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
| | - Raghu R. Seethala
- Harvard Medical School; Boston, MA 02115
- Department of Emergency Medicine, Division of Emergency and Critical Care Medicine, Brigham and Women’s Hospital, Boston 02115, MA
| | | | - Rebecca M. Baron
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
| | - Erin A. Bohula
- Harvard Medical School; Boston, MA 02115
- Department of Medicine, Division of Cardiovascular Division, Brigham and Women’s Hospital, Boston 02115, MA
| | - David A. Morrow
- Harvard Medical School; Boston, MA 02115
- Department of Medicine, Division of Cardiovascular Division, Brigham and Women’s Hospital, Boston 02115, MA
| | - Richard S. Blumberg
- Harvard Medical School; Boston, MA 02115
- Department of Medicine, Division of Gastroenterology, Brigham and Women’s Hospital, Boston, MA 02142, USA
| | - Fei Chen
- Broad Institute of Harvard and MIT, Cambridge 02138, MA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA
| | - Louis T. Merriam
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
| | - Alexandra J. Weissman
- Department of Emergency Medicine, University of Pittsburgh School of Medicine; Pittsburgh 15261, PA
| | - Michael B. Brenner
- Harvard Medical School; Boston, MA 02115
- Department of Medicine, Division of Rheumatology, Inflammation and Immunity, Brigham and Women’s Hospital, Boston 02115, MA
| | - Xiang Chen
- Department of Computational Biology, St Jude Children’s Research Hospital, Nashville 38105, TN
| | - Fumito Ichinose
- Harvard Medical School; Boston, MA 02115
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston 02114, MA
| | - Edy Y. Kim
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA 02115
- Harvard Medical School; Boston, MA 02115
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8
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Shyanti RK, Haque M, Singh R, Mishra M. Optimizing iNKT-driven immune responses against cancer by modulating CD1d in tumor and antigen presenting cells. Clin Immunol 2024; 269:110402. [PMID: 39561929 DOI: 10.1016/j.clim.2024.110402] [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: 09/30/2024] [Revised: 11/07/2024] [Accepted: 11/11/2024] [Indexed: 11/21/2024]
Abstract
Two major antigen processing pathways represent protein Ags through major histocompatibility complexes (MHC class I and II) or lipid Ags through CD1 molecules influence the tumor immune response. Invariant Natural Killer T cells (iNKT) manage a significant role in cancer immunotherapy. CD1d, found on antigen-presenting cells (APCs), presents lipid Ags to iNKT cells. In many cancers, the number and function of iNKT cell are compromised, leading to immune evasion. Additionally impaired motility of iNKT cells may contribute to poor tumor prognosis. Emerging evidences suggest that CD1d, itself also influences cancer progression. Patient databases further highlight the importance of CD1d expression in different cancers and its correlation with patient survival outcomes. The ability of iNKT cells to activate and enhance the immune response renders them an attractive target for cancer immunotherapy. This review discusses all the possible ways of cancer immune evasion and restoration of immune responses mediated by CD1d-iNKT interactions.
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Affiliation(s)
- Ritis Kumar Shyanti
- Cancer Research Center, Department of Biological Sciences, Alabama State University, AL 36104, USA
| | - Mazharul Haque
- Cancer Research Center, Department of Biological Sciences, Alabama State University, AL 36104, USA
| | - Rajesh Singh
- Microbiology, Biochemistry, and Immunology, Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA, USA
| | - Manoj Mishra
- Cancer Research Center, Department of Biological Sciences, Alabama State University, AL 36104, USA.
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9
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Chen J, Wang RH, Xie S, Xiang JJ, Zheng FK, Huang QM, Mo QL, Wei QG, Liu ZL. Causal relationship between lymphocyte subsets and the risk of sepsis: A Mendelian randomization study. Medicine (Baltimore) 2024; 103:e39871. [PMID: 39465765 PMCID: PMC11460878 DOI: 10.1097/md.0000000000039871] [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: 03/20/2024] [Indexed: 10/29/2024] Open
Abstract
Recent empirical research posits a link between lymphocyte subgroups and both the incidence and prognosis of sepsis. Nevertheless, the potential influence of multiple confounding variables obscures any clear causative correlation. Utilizing a 2-sample Mendelian randomization approach, we conducted a meta-analysis of lymphocyte subgroups. In a genome-wide association study, flow cytometry was applied to a lymphocyte subgroup comprising 3757 Sardinians to identify genes influenced by blood immune cells. The sepsis meta-analysis data were sourced from the UK Biobank database, including 11,643 treatment groups and 47,841 control groups. Inverse variance-weighted, Mendelian randomization-Egger regression, weighted median, simple mode, and weighted mode methods were deployed to ascertain the causative relationship between lymphocyte subgroup and sepsis. Cochran Q test, the Mendelian randomization-Egger intercept test, and funnel plots were leveraged to assess the robustness of study findings. The inverse variance-weighted analysis disclosed that the absolute count of CD4 regulatory T cells (CD4 Treg AC) within the lymphocyte subgroup has a causative link to an elevated risk of sepsis, with an odds ratio of 1.08 and a 95% confidence interval of 1.02 to 1.15 (P = .011). Compared to individuals not subjected to this factor, those exposed to CD4 Treg AC have a marginally elevated sepsis risk by approximately 0.08%. No causative relationships were observed between sepsis risk and the absolute counts of other lymphocyte subgroups such as CD8+ T cells, CD4+ CD8dim T cells, natural killer T cells, B cells (B cell absolute count), and HLA DR+ natural killer cells. The 2-sample Mendelian randomization study indicated a causal relationship between the level of CD4 Treg AC and the increased risk of sepsis. The elevation in circulating lymphocyte subgroups suggests higher susceptibility to sepsis, affirming the immune susceptibility inherent to this condition. The findings from our study may propose potential targets for diagnosis and intervention of sepsis.
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Affiliation(s)
- Jing Chen
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Rong Hui Wang
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Sheng Xie
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Jun Jun Xiang
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Fu Kui Zheng
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Qiao Ming Huang
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Qiu Lan Mo
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Qiu Gui Wei
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Zu Lu Liu
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
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10
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Reitsema VA, Schreuder L, Gerrits E, Eggen BJL, Goris M, Laman JD, de Rooij SE, Wesseling EM, Bouma HR, Henning RH. Calorie restriction increases the sensitivity of progeroid Ercc1 Δ/- mice to acute (neuro)inflammation. GeroScience 2024:10.1007/s11357-024-01347-1. [PMID: 39287878 DOI: 10.1007/s11357-024-01347-1] [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: 06/07/2024] [Accepted: 09/05/2024] [Indexed: 09/19/2024] Open
Abstract
Hospitalized elderly patients frequently suffer from delirium, especially in the context of sepsis-associated encephalopathy. Current treatments of delirium are merely symptomatic. Calorie restriction (CR) is both a promising strategy to protect against sepsis and has beneficial effects on aging-induced neurodegeneration. In this study, we investigated whether six weeks of 30% CR had protective effects on lipopolysaccharide (LPS) induced (neuro)inflammation in wild-type (WT) and progeroid mice deficient in the DNA excision-repair gene Ercc1 (Ercc1Δ/-). While CR did not affect the LPS-induced inflammatory response in WT mice, CR exaggerated the peripheral inflammatory response in Ercc1Δ/- mice, as evidenced by an increase of pro-inflammatory serum cytokines (TNF-α, IL-1β, and IFN-γ) and kidney injury marker Ngal. Neuroinflammatory effects were assessed by RNA-sequencing of isolated microglia. Similarly, CR did not affect microglia gene expression in WT mice, but increased neuroinflammation-associated gene expression in Ercc1Δ/- mice. In conclusion, CR increases the peripheral and brain inflammatory response of Ercc1Δ/- mice to a systemic inflammatory stimulus.
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Affiliation(s)
- V A Reitsema
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - L Schreuder
- Department of Internal Medicine, University Center for Geriatric Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Neurobiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - E Gerrits
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Neurobiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - B J L Eggen
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Neurobiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M Goris
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J D Laman
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Neurobiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - S E de Rooij
- Department of Internal Medicine, University Center for Geriatric Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - E M Wesseling
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Neurobiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - H R Bouma
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
- Department of Acute Care, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - R H Henning
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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11
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Nosenko M, Anisov D, Gubernatorova E, Gorshkova E, Zeng YR, Ye D, Wang P, Finlay D, Drutskaya M, Nedospasov S. Itaconate and dimethyl itaconate upregulate IL-6 production in the LPS-induced inflammation in mice. J Leukoc Biol 2024; 116:611-620. [PMID: 38941443 DOI: 10.1093/jleuko/qiae149] [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: 12/07/2023] [Revised: 05/10/2024] [Accepted: 06/27/2024] [Indexed: 06/30/2024] Open
Abstract
Itaconate is one of the most studied immunometabolites produced by myeloid cells during inflammatory response. It mediates a wide range of anti-inflammatory and immunoregulatory effects and plays a role in a number of pathological states, including autoimmunity and cancer. Itaconate and its derivatives are considered potential therapeutic agents for the treatment of inflammatory diseases. While immunoregulatory effects of itaconate have been extensively studied in vitro and using knockout mouse models, less is known about how therapeutic administration of this metabolite regulates inflammatory response in vivo. Here, we investigate the immunoregulatory properties of exogenous administration of itaconate and its derivative dimethyl itaconate in a mouse model of lipopolysaccharide-induced inflammation. The data show that administration of itaconate or dimethyl itaconate controls systemic production of multiple cytokines, including increased IL-10 production. However, only dimethyl itaconate was able to suppress systemic production of IFNγ and IL-1β. In contrast to in vitro data, administration of itaconate or dimethyl itaconate in vivo resulted in systemic upregulation of IL-6 in the blood. Electrophilic stress due to itaconate or dimethyl itaconate was not responsible for IL-6 upregulation. However, inhibition of succinate dehydrogenase with dimethyl malonate also resulted in elevated systemic levels of IL-6 and IL-10. Taken together, our study reports a novel effect of exogenous itaconate and its derivative dimethyl itaconate on the production of IL-6 in vivo, with important implications for the development of itaconate-based anti-inflammatory therapies.
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Affiliation(s)
- Maxim Nosenko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse street, Dublin D02R590, Ireland
| | - Denis Anisov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
| | - Ekaterina Gubernatorova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
| | - Ekaterina Gorshkova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
| | - Yi-Rong Zeng
- Molecular and Cell Biology Lab, Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, No. 131 Dong An Road, Shanghai 200032, China
| | - Dan Ye
- Molecular and Cell Biology Lab, Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, No. 131 Dong An Road, Shanghai 200032, China
| | - Pu Wang
- Molecular and Cell Biology Lab, Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, No. 131 Dong An Road, Shanghai 200032, China
| | - David Finlay
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse street, Dublin D02R590, Ireland
| | - Marina Drutskaya
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
- Division of Immunobiology and Biomedicine, Centre of Genetics and Life Sciences, Sirius University of Science and Technology, Olympic Ave. 1, Federal Territory Sirius, Krasnodar region 354340, Russia
| | - Sergei Nedospasov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov str, Moscow 119991, Russia
- Division of Immunobiology and Biomedicine, Centre of Genetics and Life Sciences, Sirius University of Science and Technology, Olympic Ave. 1, Federal Territory Sirius, Krasnodar region 354340, Russia
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12
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Cisneros-Segura JA, Rodríguez-Rodríguez N, Albarrán-Godínez A, García-González HB, Rodríguez-Osorio CA, Valdés-Ferrer SI, Tapia-Urzúa G, Recillas-Targa F, Madera-Salcedo IK, Rosetti F, Crispín JC. Sepsis Impairs IFN-γ Production in CD8 T Cells through Changes in Local Chromatin Landscape. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:619-627. [PMID: 39037267 DOI: 10.4049/jimmunol.2300772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 06/27/2024] [Indexed: 07/23/2024]
Abstract
Sepsis is a complex condition of inflammatory and immune dysregulation, triggered by severe infection. In survivors, chronic inflammation and immune dysregulation linger, facilitating the emergence of infections. CD8 dysfunction contributes to immunosuppression in sepsis survivors. We devised an animal model that enabled us to identify and analyze CD8-intrinsic defects induced by sepsis. We adoptively transferred CD45.1 CD8 OT-I T cells into CD45.2 congenic mice and subjected them to cecal ligature and puncture, to induce abdominal sepsis. One month later, we isolated the transferred CD8 cells. Surface marker expression confirmed they had not been activated through the TCR. CD8 OT-I T cells isolated from septic (or sham-operated) mice were transferred to second recipients, which were challenged with OVA-expressing Listeria monocytogenes. We compared effector capacities between OT-I cells exposed to sepsis and control cells. Naive mice that received OT-I cells exposed to sepsis had higher bacterial burden and a shorter survival when challenged with OVA-expressing L. monocytogenes. OT-I cells isolated from septic mice produced less IFN-γ but had conserved activation, expansion potential, and cytotoxic function. We observed lower transcript levels of IFN-γ and of the long noncoding RNA Ifng-as1, a local regulator of the epigenetic landscape, in cells exposed to sepsis. Accordingly, local abundance of a histone modification characteristic of active promoter regions was reduced in sepsis-exposed CD8 T cells. Our results identify a mechanism through which inflammation in the context of sepsis affects CD8 T cell function intrinsically.
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Affiliation(s)
- J Alejandro Cisneros-Segura
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Programa de Maestría y Doctorado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Noé Rodríguez-Rodríguez
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, United Kingdom
| | - Adrián Albarrán-Godínez
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - H Benjamín García-González
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Carlos A Rodríguez-Osorio
- Departament of Critical Care, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Respiratory Intensive Care Unit, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas," Mexico City, Mexico
| | - Sergio Iván Valdés-Ferrer
- Department of Neurology & Psychiatry, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Center for Biomedical Science, Feinstein Institutes for Medical Research, New York, NY
| | - Gustavo Tapia-Urzúa
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Félix Recillas-Targa
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Iris K Madera-Salcedo
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Florencia Rosetti
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - José C Crispín
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Mexico City, Mexico
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13
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Kim TC, Park HJ, Lee SW, Park YH, Van Kaer L, Hong S. Alpha-galactosylceramide pre-treatment attenuates clinical symptoms of LPS-induced acute neuroinflammation by converting pathogenic iNKT cells to anti-inflammatory iNKT10 cells in the brain. Inflamm Res 2024; 73:1511-1527. [PMID: 39028491 DOI: 10.1007/s00011-024-01915-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/20/2024] [Accepted: 07/03/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND Invariant natural killer T (iNKT) cells play protective or pathogenic roles in a variety of immune and inflammatory diseases. However, whether iNKT cells contribute to the progression of acute neuroinflammation remains unclear. Thus, we addressed this question with a mouse model of lipopolysaccharide (LPS)-induced acute neuroinflammation. METHODS For induction of acute neuroinflammation, wild-type (WT) C57BL/6 (B6) mice were injected intraperitoneally (i.p.) with LPS for either three or five consecutive days, and then these mice were analyzed for brain-infiltrating leukocytes or mouse behaviors, respectively. To examine the role of iNKT cell activation in LPS-induced neuroinflammation, mice were injected i.p. with the iNKT cell agonist α-galactosylceramide (α-GalCer) seven days prior to LPS treatment. Immune cells infiltrated into the brain during LPS-induced neuroinflammation were determined by flow cytometry. In addition, LPS-induced clinical behavior symptoms such as depressive-like behavior and memory impairment in mice were evaluated by the open field and Y-maze tests, respectively. RESULTS We found that iNKT cell-deficient Jα18 mutant mice display delayed disease progression and decreased leukocyte infiltration into the brain compared with WT mice, indicating that iNKT cells contribute to the pathogenesis of LPS-induced neuroinflammation. Since it has been reported that pre-treatment with α-GalCer, an iNKT cell agonist, can convert iNKT cells towards anti-inflammatory phenotypes, we next explored whether pre-activation of iNKT cells with α-GalCer can regulate LPS-induced neuroinflammation. Strikingly, we found that α-GalCer pre-treatment significantly delays the onset of clinical symptoms, including depression-like behavior and memory impairment, while decreasing brain infiltration of pro-inflammatory natural killer cells and neutrophils, in this model of LPS-induced neuroinflammation. Such anti-inflammatory effects of α-GalCer pre-treatment closely correlated with iNKT cell polarization towards IL4- and IL10-producing phenotypes. Furthermore, α-GalCer pre-treatment restored the expression of suppressive markers on brain regulatory T cells during LPS-induced neuroinflammation. CONCLUSION Our findings provide strong evidence that α-GalCer-induced pre-activation of iNKT cells expands iNKT10 cells, mitigating depressive-like behaviors and brain infiltration of inflammatory immune cells induced by LPS-induced acute neuroinflammation. Thus, we suggest the prophylactic potential of iNKT cells and α-GalCer against acute neuroinflammation.
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Affiliation(s)
- Tae-Cheol Kim
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, South Korea
| | - Hyun Jung Park
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, South Korea
| | - Sung Won Lee
- Department of Biomedical Laboratory Science, College of Health and Biomedical Services, Sangji University, Wonju, 26339, South Korea
| | - Yun Hoo Park
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, South Korea
| | - Luc Van Kaer
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Seokmann Hong
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, South Korea.
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14
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Pires Nakama R, Felipe Dos Santos L, Berto-Pereira L, Sobral de Rossi L, Donizette Malvezi A, Isabel Lovo-Martins M, Paula Canizares Cardoso A, Mendes Dionísio de Freitas A, Cardoso Martins-Pinge M, Pinge-Filho P. Metabolic syndrome induces benefits in mice experiencing severe sepsis, comparable to the effects of low-dose aspirin pretreatment in septic mice lacking metabolic syndrome. Int Immunopharmacol 2024; 139:112694. [PMID: 39024746 DOI: 10.1016/j.intimp.2024.112694] [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: 05/16/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 07/20/2024]
Abstract
BACKGROUND Sepsis is a complex condition characterized by systemic host inflammation caused by an infection. Experimental and observational studies indicate that obesity, one of the components of metabolic syndrome (MetS), or aspirin (ASA) treatment could be associated with sepsis survival. However, the effects of ASA on septic mice with MetS-induced conditions have not been explored. METHODS Swiss mice were administered monosodium glutamate (MSG) (4 mg/kg) during their first 5 days of life for MetS induction, while the control mice received an equimolar saline solution. MetS was validated in male mice on their 60th day of life. ASA treatment was administered for 15 days prior to sepsis (40 mg/kg). On the 75th day, sepsis was induced in MetS and control mice through cecal ligation and puncture (CLP). The effects of ASA on septic mice with MSG-induced MetS were assessed by determining survival rates, quantification of nitric oxide (NO), and cytokine levels in the plasma, while correlating these data with hematological, blood glucose and cardiovascular parameters. RESULTS MetS was validated by Lee-Index (3 body weight/naso-anal length×1000), hypertension, and hyperglycemia in animals receiving MSG as neonates. In control animals, severe sepsis promoted hypoglycemia, which was associated with mortality, as well as increased plasma NO levels, hypotension, hematological alterations, and elevation of proinflammatory cytokines. In contrast, MetS and pre-treatment with ASA were able to prevent sepsis-related alterations. CONCLUSIONS MetS and ASA pre-treatment provided protection against severe sepsis. However, ASA was ineffective in mice with MetS undergoing severe sepsis.
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Affiliation(s)
- Raquel Pires Nakama
- Laboratory of Experimental Immunopathology, Department of Immunology, Parasitology and General Pathology, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Lucas Felipe Dos Santos
- Laboratory of Microorganism Molecular Biology, Department of Microbiology, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Leonardo Berto-Pereira
- Laboratory of Cardiovascular Physiology and Physiopathology, Department of Physiological Sciences, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Lucas Sobral de Rossi
- Laboratory of Experimental Immunopathology, Department of Immunology, Parasitology and General Pathology, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Aparecida Donizette Malvezi
- Laboratory of Experimental Immunopathology, Department of Immunology, Parasitology and General Pathology, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Maria Isabel Lovo-Martins
- Laboratory of Experimental Immunopathology, Department of Immunology, Parasitology and General Pathology, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Ana Paula Canizares Cardoso
- Laboratory of Experimental Immunopathology, Department of Immunology, Parasitology and General Pathology, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Andressa Mendes Dionísio de Freitas
- Laboratory of Pharmacology of Inflammation, Department of Physiological Sciences, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Marli Cardoso Martins-Pinge
- Laboratory of Experimental Immunopathology, Department of Immunology, Parasitology and General Pathology, Center for Biological Sciences, State University of Londrina, PR, Brazil; Laboratory of Cardiovascular Physiology and Physiopathology, Department of Physiological Sciences, Center for Biological Sciences, State University of Londrina, PR, Brazil
| | - Phileno Pinge-Filho
- Laboratory of Experimental Immunopathology, Department of Immunology, Parasitology and General Pathology, Center for Biological Sciences, State University of Londrina, PR, Brazil; Laboratory of Microorganism Molecular Biology, Department of Microbiology, Center for Biological Sciences, State University of Londrina, PR, Brazil.
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15
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Zhang X, Zhang Y, Yuan S, Zhang J. The potential immunological mechanisms of sepsis. Front Immunol 2024; 15:1434688. [PMID: 39040114 PMCID: PMC11260823 DOI: 10.3389/fimmu.2024.1434688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Accepted: 06/25/2024] [Indexed: 07/24/2024] Open
Abstract
Sepsis is described as a life-threatening organ dysfunction and a heterogeneous syndrome that is a leading cause of morbidity and mortality in intensive care settings. Severe sepsis could incite an uncontrollable surge of inflammatory cytokines, and the host immune system's immunosuppression could respond to counter excessive inflammatory responses, characterized by the accumulated anti-inflammatory cytokines, impaired function of immune cells, over-proliferation of myeloid-derived suppressor cells and regulatory T cells, depletion of immune effector cells by different means of death, etc. In this review, we delve into the underlying pathological mechanisms of sepsis, emphasizing both the hyperinflammatory phase and the associated immunosuppression. We offer an in-depth exploration of the critical mechanisms underlying sepsis, spanning from individual immune cells to a holistic organ perspective, and further down to the epigenetic and metabolic reprogramming. Furthermore, we outline the strengths of artificial intelligence in analyzing extensive datasets pertaining to septic patients, showcasing how classifiers trained on various clinical data sources can identify distinct sepsis phenotypes and thus to guide personalized therapy strategies for the management of sepsis. Additionally, we provide a comprehensive summary of recent, reliable biomarkers for hyperinflammatory and immunosuppressive states, facilitating more precise and expedited diagnosis of sepsis.
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Affiliation(s)
- Xinyu Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yujing Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shiying Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiancheng Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Jang JH, Choi E, Kim T, Yeo HJ, Jeon D, Kim YS, Cho WH. Navigating the Modern Landscape of Sepsis: Advances in Diagnosis and Treatment. Int J Mol Sci 2024; 25:7396. [PMID: 39000503 PMCID: PMC11242529 DOI: 10.3390/ijms25137396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 06/27/2024] [Accepted: 07/03/2024] [Indexed: 07/16/2024] Open
Abstract
Sepsis poses a significant threat to human health due to its high morbidity and mortality rates worldwide. Traditional diagnostic methods for identifying sepsis or its causative organisms are time-consuming and contribute to a high mortality rate. Biomarkers have been developed to overcome these limitations and are currently used for sepsis diagnosis, prognosis prediction, and treatment response assessment. Over the past few decades, more than 250 biomarkers have been identified, a few of which have been used in clinical decision-making. Consistent with the limitations of diagnosing sepsis, there is currently no specific treatment for sepsis. Currently, the general treatment for sepsis is conservative and includes timely antibiotic use and hemodynamic support. When planning sepsis-specific treatment, it is important to select the most suitable patient, considering the heterogeneous nature of sepsis. This comprehensive review summarizes current and evolving biomarkers and therapeutic approaches for sepsis.
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Affiliation(s)
- Jin Ho Jang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (J.H.J.); (E.C.); (T.K.); (H.J.Y.); (D.J.); (Y.S.K.)
- Department of Internal Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Eunjeong Choi
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (J.H.J.); (E.C.); (T.K.); (H.J.Y.); (D.J.); (Y.S.K.)
- Department of Internal Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Taehwa Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (J.H.J.); (E.C.); (T.K.); (H.J.Y.); (D.J.); (Y.S.K.)
- Department of Internal Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Hye Ju Yeo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (J.H.J.); (E.C.); (T.K.); (H.J.Y.); (D.J.); (Y.S.K.)
- Department of Internal Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Doosoo Jeon
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (J.H.J.); (E.C.); (T.K.); (H.J.Y.); (D.J.); (Y.S.K.)
- Department of Internal Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Yun Seong Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (J.H.J.); (E.C.); (T.K.); (H.J.Y.); (D.J.); (Y.S.K.)
- Department of Internal Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Woo Hyun Cho
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (J.H.J.); (E.C.); (T.K.); (H.J.Y.); (D.J.); (Y.S.K.)
- Department of Internal Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
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Zhang J, Wu Y, Du Y, Du Y, Bao D, Lu H, Zhou X, Li R, Pei H, She H, Mao Q. Cuproptosis-Related Genes as Prognostic Biomarkers for Sepsis: Insights into Immune Function and Personalized Immunotherapy. J Inflamm Res 2024; 17:4229-4245. [PMID: 38979432 PMCID: PMC11228080 DOI: 10.2147/jir.s461766] [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: 01/29/2024] [Accepted: 06/25/2024] [Indexed: 07/10/2024] Open
Abstract
Background This study aimed to discover diagnostic and prognostic biomarkers for sepsis immunotherapy through analyzing the novel cellular death process, cuproptosis. Methods We used transcriptome data from sepsis patients to identify key cuproptosis-related genes (CuRGs). We created a predictive model and used the CIBERSORT algorithm to observe the link between these genes and the septic immune microenvironment. We segregated sepsis patients into three subgroups, comparing immune function, immune cell infiltration, and differential analysis. Single-cell sequencing and real-time quantitative PCR were used to view the regulatory effect of CuRGs on the immune microenvironment and compare the mRNA levels of these genes in sepsis patients and healthy controls. We established a sepsis forecast model adapted to heart rate, body temperature, white blood cell count, and cuproptosis key genes. This was followed by a drug sensitivity analysis of cuproptosis key genes. Results Our results filtered three key genes (LIAS, PDHB, PDHA1) that impact sepsis prognosis. We noticed that the high-risk group had poorer immune cell function and lesser immune cell infiltration. We also discovered a significant connection between CuRGs and immune cell infiltration in sepsis. Through consensus clustering, sepsis patients were classified into three subgroups. The best immune functionality and prognosis was observed in subgroup B. Single-cell sequencing exposed that the key genes manage the immune microenvironment by affecting T cell activation. The qPCR results highlighted substantial mRNA level reduction of the three key genes in the SP compared to the HC. The prediction model, which combines CuRGs and traditional diagnostic indicators, performed better in accuracy than the other markers. The drug sensitivity analysis listed bisphenol A as highly sensitive to all the key genes. Conclusion Our study suggests these CuRGs may offer substantial potential for sepsis prognosis prediction and personalized immunotherapy.
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Affiliation(s)
- Jun Zhang
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Yinyu Wu
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Yuanlin Du
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Yunxia Du
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Daiqin Bao
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Haibin Lu
- Department of Intensive Care Unit, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Xiaoqiong Zhou
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Rui Li
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Haoyu Pei
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Han She
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
| | - Qingxiang Mao
- Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, People’s Republic of China
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Luo T, Tan X, Qing G, Yu J, Liang XJ, Liang P. A natural killer T cell nanoagonist-initiated immune cascade for hepatocellular carcinoma synergistic immunotherapy. NANOSCALE 2024; 16:11126-11137. [PMID: 38787697 DOI: 10.1039/d4nr00847b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Natural killer T (NKT) cell-mediated immunotherapy shows great promise in hepatocellular carcinoma featuring an inherent immunosuppressive microenvironment. However, targeted delivery of NKT cell agonists remains challenging. Here, we developed a hyaluronic acid (HA) modified metal organic framework (zeolitic imidazolate framework-8, ZIF-8) to encapsulate α-galactosylceramide (α-Galcer), a classic NKT cell agonist, and doxorubicin (DOX) for eliminating liver cancer, denoted as α-Galcer/DOX@ZIF-8@HA. In the tumor microenvironment (TME), these pH-responsive nano-frameworks can gradually collapse to release α-Galcer for activating NKT cells and further boosting other immune cells in order to initiate an antitumor immune cascade. Along with DOX, the released α-Galcer enabled efficient NKT cell activation in TME for synergistic immunotherapy and tumor elimination, leading to evident tumor suppression and prolonged animal survival in both subcutaneous and orthotopic liver tumor models. Manipulating NKT cell agonists into functional nano-frameworks in TME may be matched with other advanced managements applied in a wider range of cancer therapies.
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Affiliation(s)
- Ting Luo
- School of Medicine, Nankai University, Tianjin, 300071, China.
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, 100853, China.
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China.
| | - Xiaoqiong Tan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China.
| | - Guangchao Qing
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China.
| | - Jie Yu
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, 100853, China.
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Liang
- School of Medicine, Nankai University, Tianjin, 300071, China.
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, 100853, China.
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19
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Liu Q, Liu H, Hu Z, Zhou X, Jin K, Huang Y, Huang W, Yang Y. Mendelian Randomization and Transcriptomic Analysis Reveal the Protective Role of NKT Cells in Sepsis. J Inflamm Res 2024; 17:3159-3171. [PMID: 38774448 PMCID: PMC11107935 DOI: 10.2147/jir.s459706] [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: 01/15/2024] [Accepted: 05/07/2024] [Indexed: 05/24/2024] Open
Abstract
Background Sepsis is a life-threatening clinical syndrome caused by dysregulated host response to infection. The mechanism underlying sepsis-induced immune dysfunction remains poorly understood. Natural killer T (NKT) cells are cytotoxic lymphocytes that bridge the innate and adaptive immune systems, the role of NKT cells in sepsis is not entirely understood, and NKT cell cluster differences in sepsis remain unexplored. Methods Mendelian randomization (MR) analyses were first conducted to investigate the causal relationship between side scatter area (SSC-A) on NKT cells and 28-day mortality of septic patients. A prospective and observational study was conducted to validate the relationship between the percentage of NKT cells and 28-day mortality of sepsis. Then, the single-cell RNA sequencing (scRNA-seq) data of peripheral blood mononuclear cells (PBMCs) from healthy controls and septic patients were profiled. Results MR analyses first revealed the protective roles of NKT cells in the 28-day mortality of sepsis. Then, 115 septic patients were enrolled. NKT percentage was significantly higher in survivors (n = 84) compared to non-survivors (n = 31) (%, 5.00 ± 3.46 vs 2.18 ± 1.93, P < 0.0001). Patients with lower levels of NKT cells exhibited a significantly increased risk of 28-day mortality. According to scRNA-seq analysis, NKT cell clusters exhibited multiple distinctive characteristics, including a distinguishing cluster defined as FOS+NKT cells, which showed a significant decrease in sepsis. Pseudo-time analysis showed that FOS+NKT cells were characterized by upregulated expression of crucial functional genes such as GZMA and CCL4. CellChat revealed that interactions between FOS+NKT cells and adaptive immune cells including B cells and T cells were decreased in sepsis compared to healthy controls. Conclusion Our findings indicate that NKT cells may protect against sepsis, and their percentage can predict 28-day mortality. Additionally, we discovered a unique FOS+NKT subtype crucial in sepsis immune response, offering novel insights into its immunopathogenesis.
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Affiliation(s)
- Qingxiang Liu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Haitao Liu
- School of Life Science, Fudan University, Shanghai, 200000, People’s Republic of China
| | - Zihan Hu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Xing Zhou
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Kai Jin
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Yingzi Huang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Wei Huang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Yi Yang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China
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Liu R, Liu J, Cao Q, Chu Y, Chi H, Zhang J, Fu J, Zhang T, Fan L, Liang C, Luo X, Yang X, Li B. Identification of crucial genes through WGCNA in the progression of gastric cancer. J Cancer 2024; 15:3284-3296. [PMID: 38817876 PMCID: PMC11134444 DOI: 10.7150/jca.95757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/11/2024] [Indexed: 06/01/2024] Open
Abstract
Background: To explore the hub gene closely related to the progression of gastric cancer (GC), so as to provide a theoretical basis for revealing the therapeutic mechanism of GC. Methods: The gene expression profile and clinical data of GSE15459 in Gene Expression Omnibus (GEO) database were downloaded. The weighted gene co-expression network analysis (WGCNA) was used to screen the key modules related to GC progression. Survival analysis was used to assess the influence of hub genes on patients' outcomes. CIBERSORT analysis was used to predict the tissue infiltrating immune cells in patients. Immunohistochemical staining was conducted to further verify the expression of hub genes. Results: Through WGCNA, a total of 26 co-expression modules were constructed, in which salmon module and royalblue module had strong correlation with GC progression. The results of enrichment analysis showed that genes in the two modules were mainly involved in toll-like receptor signaling pathway, cholesterol metabolism and neuroactive ligand-receptor interaction. Six hub genes (C1QA, C1QB, C1QC, FCER1G, FPR3 and TYROBP) related to GC progression were screened. Survival analysis showed overall survival in the high expression group was significantly lower than that in the low expression group. CIBERSORT analysis revealed that immune characteristics difference between patients in early stage and advanced stage. Immunohistochemical results confirmed that C1QB, FCER1G, FPR3 and TYROBP were significantly associated with disease progression in GC. Conclusion: Our study identified that C1QB, FCER1G, FPR3 and TYROBP played important roles in the progression of GC, and their specific mechanisms are worth further study.
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Affiliation(s)
- Rui Liu
- Vascular surgery Department, The Affiliated Hospital of Southwest Medical University, Lu Zhou, China
- Department of gastrointestinal surgery, Meishan People 's Hospital, Meishan, China
| | - Jie Liu
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Sichuan, China
- Academician (Expert) Workstation of Sichuan Province, Metabolic Hepatobiliary and Pancreatic Diseases Key Laboratory of Luzhou City, The Affiliated Hospital of Southwest Medical University, Sichuan, China
- Department of general surgery, Dazhou Central Hospital, Dazhou, China
| | - Qiang Cao
- School of Medicine, Macau University of Science and Technology, 999078, Macau, China
| | - Yanpeng Chu
- Department of general surgery, Dazhou Central Hospital, Dazhou, China
- Medical College, Sichuan University of Arts and Science, Dazhou, China
| | - Hao Chi
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Sichuan, China
- Academician (Expert) Workstation of Sichuan Province, Metabolic Hepatobiliary and Pancreatic Diseases Key Laboratory of Luzhou City, The Affiliated Hospital of Southwest Medical University, Sichuan, China
| | - Jun Zhang
- Department of general surgery, Dazhou Central Hospital, Dazhou, China
| | - Jiangping Fu
- Oncology department, Dazhou Central Hospital, Dazhou, China
| | - Tianchi Zhang
- Department of general surgery, Dazhou Central Hospital, Dazhou, China
| | - Linguang Fan
- Department of general surgery, Dazhou Central Hospital, Dazhou, China
| | - Chaozhong Liang
- Department of general surgery, Dazhou Central Hospital, Dazhou, China
| | - Xiufang Luo
- Geriatric department, Dazhou Central Hospital, Dazhou, China
| | - Xiaoli Yang
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Sichuan, China
- Academician (Expert) Workstation of Sichuan Province, Metabolic Hepatobiliary and Pancreatic Diseases Key Laboratory of Luzhou City, The Affiliated Hospital of Southwest Medical University, Sichuan, China
| | - Bo Li
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Sichuan, China
- Academician (Expert) Workstation of Sichuan Province, Metabolic Hepatobiliary and Pancreatic Diseases Key Laboratory of Luzhou City, The Affiliated Hospital of Southwest Medical University, Sichuan, China
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21
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Yamada K, Menon JA, Kim Y, Cheng C, Chen W, Shih JA, Villasenor-Altamirano AB, Chen X, Tamura T, Merriam LT, Kim EY, Weissman AJ. Protocol for immunophenotyping out-of-hospital cardiac arrest patients. STAR Protoc 2024; 5:102874. [PMID: 38310512 PMCID: PMC10850743 DOI: 10.1016/j.xpro.2024.102874] [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: 07/19/2023] [Revised: 11/28/2023] [Accepted: 01/19/2024] [Indexed: 02/06/2024] Open
Abstract
Immunophenotyping of out-of-hospital cardiac arrest (OHCA) patients is of increasing interest but has challenges. Here, we describe steps for the design of the clinical cohort, planning patient enrollment and sample collection, and ethical review of the study protocol. We detail procedures for blood sample collection and cryopreservation of peripheral blood mononuclear cells (PBMCs). We detail steps to modulate immune checkpoints in OHCA PBMC ex vivo. This protocol also has relevance for immunophenotyping other types of critical illness. For complete details on the use and execution of this protocol, please refer to Tamura et al. (2023).1.
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Affiliation(s)
- Kohei Yamada
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA.
| | - Jaivardhan A Menon
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Yaunghyun Kim
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Changde Cheng
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Wenan Chen
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Jenny A Shih
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Ana B Villasenor-Altamirano
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Xiang Chen
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Tomoyoshi Tamura
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA; Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Louis T Merriam
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Edy Y Kim
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA.
| | - Alexandra J Weissman
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
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22
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Liu J, Zhang Q, Wong YK, Luo P, Chen J, Xie L, Chen J, He X, Shi F, Gong P, Liu X, Wang J. Single-Cell Transcriptomics Reveals the Ameliorative Effect of Oridonin on Septic Liver Injury. Adv Biol (Weinh) 2024; 8:e2300542. [PMID: 38408269 DOI: 10.1002/adbi.202300542] [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: 10/09/2023] [Revised: 12/23/2023] [Indexed: 02/28/2024]
Abstract
Sepsis is a life-threatening syndrome leading to hemodynamic instability and potential organ dysfunction. Oridonin, commonly used in Traditional Chinese Medicine (TCM), exhibits significant anti-inflammation activity. To explore the protective mechanisms of oridonin against the pathophysiological changes, the authors conducted single-cell transcriptome (scRNA-seq) analysis on septic liver models induced by cecal ligation and puncture (CLP). They obtained a total of 63,486 cells, distributed across 11 major cell clusters, and concentrated their analysis on four specific clusters (hepatocytes/Heps, macrophages, endothelial/Endos and T/NK) based on their changes in proportion during sepsis and under oridonin treatment. Firstly, biological changes in Hep, which are related to metabolic dysregulation and pro-inflammatory signaling, are observed during sepsis. Secondly, they uncovered the dynamic profiles of macrophage's phenotype, indicating that a substantial number of macrophages exhibited a M1-skewed phenotype associated with pro-inflammatory characteristics in septic model. Thirdly, they detected an upregulation of both inflammatory cytokines and transcriptomic factor Nfkb1 expression within Endo, along with slight capillarization during sepsis. Moreover, excessive accumulation of cytotoxic NK led to an immune imbalance. Though, oridonin ameliorated inflammatory-related responses and improved the liver dysfunction in septic mice. This study provides fundamental evidence of the protective effects of oridonin against sepsis-induced cytokine storm.
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Affiliation(s)
- Jing Liu
- Department of Critical Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, Guangdong, 518020, China
| | - Qian Zhang
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Yin Kwan Wong
- Department of Critical Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, Guangdong, 518020, China
| | - Piao Luo
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Junhui Chen
- Department of Critical Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, Guangdong, 518020, China
| | - Lulin Xie
- Department of Critical Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, Guangdong, 518020, China
| | - Jiayun Chen
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Xueling He
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Fei Shi
- Department of Infectious Disease, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Ping Gong
- Department of Emergency, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Xueyan Liu
- Department of Critical Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, Guangdong, 518020, China
| | - Jigang Wang
- Department of Critical Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, Guangdong, 518020, China
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China
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Padovani CM, Yin K. Immunosuppression in Sepsis: Biomarkers and Specialized Pro-Resolving Mediators. Biomedicines 2024; 12:175. [PMID: 38255280 PMCID: PMC10813323 DOI: 10.3390/biomedicines12010175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Severe infection can lead to sepsis. In sepsis, the host mounts an inappropriately large inflammatory response in an attempt to clear the invading pathogen. This sustained high level of inflammation may cause tissue injury and organ failure. Later in sepsis, a paradoxical immunosuppression occurs, where the host is unable to clear the preexisting infection and is susceptible to secondary infections. A major issue with sepsis treatment is that it is difficult for physicians to ascertain which stage of sepsis the patient is in. Sepsis treatment will depend on the patient's immune status across the spectrum of the disease, and these immune statuses are nearly polar opposites in the early and late stages of sepsis. Furthermore, there is no approved treatment that can resolve inflammation without contributing to immunosuppression within the host. Here, we review the major mechanisms of sepsis-induced immunosuppression and the biomarkers of the immunosuppressive phase of sepsis. We focused on reviewing three main mechanisms of immunosuppression in sepsis. These are lymphocyte apoptosis, monocyte/macrophage exhaustion, and increased migration of myeloid-derived suppressor cells (MDSCs). The biomarkers of septic immunosuppression that we discuss include increased MDSC production/migration and IL-10 levels, decreased lymphocyte counts and HLA-DR expression, and increased GPR18 expression. We also review the literature on the use of specialized pro-resolving mediators (SPMs) in different models of infection and/or sepsis, as these compounds have been reported to resolve inflammation without being immunosuppressive. To obtain the necessary information, we searched the PubMed database using the keywords sepsis, lymphocyte apoptosis, macrophage exhaustion, MDSCs, biomarkers, and SPMs.
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Affiliation(s)
- Cristina M. Padovani
- Department of Cell Biology and Neuroscience, Rowan-Virtua School of Translational Biomedical Engineering and Sciences, Virtua Health College of Life Sciences of Rowan University, Stratford, NJ 08084, USA;
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24
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Holmes D, Colaneri M, Palomba E, Gori A. Exploring post-SEPSIS and post-COVID-19 syndromes: crossovers from pathophysiology to therapeutic approach. Front Med (Lausanne) 2024; 10:1280951. [PMID: 38249978 PMCID: PMC10797045 DOI: 10.3389/fmed.2023.1280951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/07/2023] [Indexed: 01/23/2024] Open
Abstract
Sepsis, driven by several infections, including COVID-19, can lead to post-sepsis syndrome (PSS) and post-acute sequelae of COVID-19 (PASC). Both these conditions share clinical and pathophysiological similarities, as survivors face persistent multi-organ dysfunctions, including respiratory, cardiovascular, renal, and neurological issues. Moreover, dysregulated immune responses, immunosuppression, and hyperinflammation contribute to these conditions. The lack of clear definitions and diagnostic criteria hampers comprehensive treatment strategies, and a unified therapeutic approach is significantly needed. One potential target might be the renin-angiotensin system (RAS), which plays a significant role in immune modulation. In fact, RAS imbalance can exacerbate these responses. Potential interventions involving RAS include ACE inhibitors, ACE receptor blockers, and recombinant human ACE2 (rhACE2). To address the complexities of PSS and PASC, a multifaceted approach is required, considering shared immunological mechanisms and the role of RAS. Standardization, research funding, and clinical trials are essential for advancing treatment strategies for these conditions.
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Affiliation(s)
- Darcy Holmes
- Infectious Diseases Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marta Colaneri
- Department of Infectious Diseases, Luigi Sacco Hospital, Milan, Italy
| | - Emanuele Palomba
- Department of Infectious Diseases, Luigi Sacco Hospital, Milan, Italy
| | - Andrea Gori
- Department of Infectious Diseases, Luigi Sacco Hospital, Milan, Italy
- Centre for Multidisciplinary Research in Health Science (MACH), University of Milan, Milan, Italy
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25
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Bode C, Weis S, Sauer A, Wendel-Garcia P, David S. Targeting the host response in sepsis: current approaches and future evidence. Crit Care 2023; 27:478. [PMID: 38057824 PMCID: PMC10698949 DOI: 10.1186/s13054-023-04762-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023] Open
Abstract
Sepsis, a dysregulated host response to infection characterized by organ failure, is one of the leading causes of death worldwide. Disbalances of the immune response play an important role in its pathophysiology. Patients may develop simultaneously or concomitantly states of systemic or local hyperinflammation and immunosuppression. Although a variety of effective immunomodulatory treatments are generally available, attempts to inhibit or stimulate the immune system in sepsis have failed so far to improve patients' outcome. The underlying reason is likely multifaceted including failure to identify responders to a specific immune intervention and the complex pathophysiology of organ dysfunction that is not exclusively caused by immunopathology but also includes dysfunction of the coagulation system, parenchymal organs, and the endothelium. Increasing evidence suggests that stratification of the heterogeneous population of septic patients with consideration of their host response might led to treatments that are more effective. The purpose of this review is to provide an overview of current studies aimed at optimizing the many facets of host response and to discuss future perspectives for precision medicine approaches in sepsis.
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Affiliation(s)
- Christian Bode
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany.
| | - Sebastian Weis
- Institute for Infectious Disease and Infection Control, University Hospital Jena, Friedrich-Schiller University Jena, Jena, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Jena, Friedrich-Schiller University Jena, Jena, Germany
- Leibniz Institute for Natural Product Research and Infection Biology, Hans-Knöll Institute-HKI, Jena, Germany
| | - Andrea Sauer
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Pedro Wendel-Garcia
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Sascha David
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
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26
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Unterberg M, Ehrentraut SF, Bracht T, Wolf A, Haberl H, von Busch A, Rump K, Ziehe D, Bazzi M, Thon P, Sitek B, Marcus K, Bayer M, Schork K, Eisenacher M, Ellger B, Oswald D, Wappler F, Defosse J, Henzler D, Köhler T, Zarbock A, Putensen CP, Schewe JC, Frey UH, Anft M, Babel N, Steinmann E, Brüggemann Y, Trilling M, Schlüter A, Nowak H, Adamzik M, Rahmel T, Koos B. Human cytomegalovirus seropositivity is associated with reduced patient survival during sepsis. Crit Care 2023; 27:417. [PMID: 37907989 PMCID: PMC10619294 DOI: 10.1186/s13054-023-04713-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/26/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Sepsis is one of the leading causes of death. Treatment attempts targeting the immune response regularly fail in clinical trials. As HCMV latency can modulate the immune response and changes the immune cell composition, we hypothesized that HCMV serostatus affects mortality in sepsis patients. METHODS We determined the HCMV serostatus (i.e., latency) of 410 prospectively enrolled patients of the multicenter SepsisDataNet.NRW study. Patients were recruited according to the SEPSIS-3 criteria and clinical data were recorded in an observational approach. We quantified 13 cytokines at Days 1, 4, and 8 after enrollment. Proteomics data were analyzed from the plasma samples of 171 patients. RESULTS The 30-day mortality was higher in HCMV-seropositive patients than in seronegative sepsis patients (38% vs. 25%, respectively; p = 0.008; HR, 1.656; 95% CI 1.135-2.417). This effect was observed independent of age (p = 0.010; HR, 1.673; 95% CI 1.131-2.477). The predictive value on the outcome of the increased concentrations of IL-6 was present only in the seropositive cohort (30-day mortality, 63% vs. 24%; HR 3.250; 95% CI 2.075-5.090; p < 0.001) with no significant differences in serum concentrations of IL-6 between the two groups. Procalcitonin and IL-10 exhibited the same behavior and were predictive of the outcome only in HCMV-seropositive patients. CONCLUSION We suggest that the predictive value of inflammation-associated biomarkers should be re-evaluated with regard to the HCMV serostatus. Targeting HCMV latency might open a new approach to selecting suitable patients for individualized treatment in sepsis.
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Affiliation(s)
- M Unterberg
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - S F Ehrentraut
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Bonn, Bonn, Germany
| | - T Bracht
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
| | - A Wolf
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - H Haberl
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - A von Busch
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - K Rump
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - D Ziehe
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - M Bazzi
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - P Thon
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - B Sitek
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
| | - K Marcus
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI), Ruhr University Bochum, 44801, Bochum, Germany
| | - M Bayer
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
| | - K Schork
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI), Ruhr University Bochum, 44801, Bochum, Germany
| | - M Eisenacher
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI), Ruhr University Bochum, 44801, Bochum, Germany
| | - B Ellger
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Klinikum Westfalen, Dortmund, Germany
| | - D Oswald
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Klinikum Westfalen, Dortmund, Germany
| | - F Wappler
- Department of Anaesthesiology and Operative Intensive Care Medicine, University of Witten/Herdecke, Cologne Merheim Medical School, Cologne, Germany
| | - J Defosse
- Department of Anaesthesiology and Operative Intensive Care Medicine, University of Witten/Herdecke, Cologne Merheim Medical School, Cologne, Germany
| | - D Henzler
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr-University Bochum, Klinikum Herford, Herford, Germany
| | - T Köhler
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr-University Bochum, Klinikum Herford, Herford, Germany
- Department of Anesthesiology and Intensive Care Medicine, AMEOS-Klinikum Halberstadt, Halberstadt, Germany
| | - A Zarbock
- Klinik für Anästhesiologie, Operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Münster, Germany
| | - C P Putensen
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Bonn, Bonn, Germany
| | - J C Schewe
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Bonn, Bonn, Germany
| | - U H Frey
- Marien Hospital Herne, Universitätsklinikum der Ruhr-Universität Bochum, Bochum, Germany
| | - M Anft
- Center for Translational Medicine, Medical Clinic I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany
| | - N Babel
- Center for Translational Medicine, Medical Clinic I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany
| | - E Steinmann
- Department of Molecular and Medical Virology, Ruhr University Bochum, 44801, Bochum, Germany
| | - Y Brüggemann
- Department of Molecular and Medical Virology, Ruhr University Bochum, 44801, Bochum, Germany
| | - M Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - A Schlüter
- Knappschaft Kliniken GmbH, Recklinghausen, Germany
| | - H Nowak
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Center for Artficial Intelligence, Medical Informatics and Data Science, University Hospital Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - M Adamzik
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - T Rahmel
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - B Koos
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany.
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27
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Shunxi W, Xiaoxue Y, Guanbin S, Li Y, Junyu J, Wanqian L. Serine Metabolic Reprogramming in Tumorigenesis, Tumor Immunity, and Clinical Treatment. Adv Nutr 2023; 14:1050-1066. [PMID: 37187454 PMCID: PMC10509429 DOI: 10.1016/j.advnut.2023.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 05/04/2023] [Accepted: 05/11/2023] [Indexed: 05/17/2023] Open
Abstract
Serine has been recently identified as an essential metabolite for oncogenesis, progression, and adaptive immunity. Influenced by many physiologic or tumor environmental factors, the metabolic pathways of serine synthesis, uptake, and usage are heterogeneously reprogrammed and frequently amplified in tumor or tumor-associated cells. The hyperactivation of serine metabolism promotes abnormal cellular nucleotide/protein/lipid synthesis, mitochondrial function, and epigenetic modifications, which drive malignant transformation, unlimited proliferation, metastasis, immunosuppression, and drug resistance of tumor cells. Dietary restriction of serine or phosphoglycerate dehydrogenase depletion mitigates tumor growth and extends the survival of tumor patients. Correspondingly, these findings triggered a boom in the development of novel therapeutic agents targeting serine metabolism. In this study, recent discoveries in the underlying mechanism and cellular function of serine metabolic reprogramming are summarized. The vital role of serine metabolism in oncogenesis, tumor stemness, tumor immunity, and therapeutic resistance is outlined. Finally, some potential tumor therapeutic concepts, strategies, and limitations of targeting the serine metabolic pathway are described in detail. Taken together, this review underscores the importance of serine metabolic reprogramming in tumorigenesis and progression and highlights new opportunities for dietary restriction or selective pharmacologic intervention.
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Affiliation(s)
- Wang Shunxi
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Yuan Xiaoxue
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Song Guanbin
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Yang Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Jin Junyu
- Department of Oncology, Chenjiaqiao Hospital, Shapingba, Chongqing, China.
| | - Liu Wanqian
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China.
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28
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Tamura T, Cheng C, Chen W, Merriam LT, Athar H, Kim YH, Manandhar R, Amir Sheikh MD, Pinilla-Vera M, Varon J, Hou PC, Lawler PR, Oldham WM, Seethala RR, Tesfaigzi Y, Weissman AJ, Baron RM, Ichinose F, Berg KM, Bohula EA, Morrow DA, Chen X, Kim EY. Single-cell transcriptomics reveal a hyperacute cytokine and immune checkpoint axis after cardiac arrest in patients with poor neurological outcome. MED 2023; 4:432-456.e6. [PMID: 37257452 PMCID: PMC10524451 DOI: 10.1016/j.medj.2023.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 03/06/2023] [Accepted: 05/02/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Most patients hospitalized after cardiac arrest (CA) die because of neurological injury. The systemic inflammatory response after CA is associated with neurological injury and mortality but remains poorly defined. METHODS We determine the innate immune network induced by clinical CA at single-cell resolution. FINDINGS Immune cell states diverge as early as 6 h post-CA between patients with good or poor neurological outcomes 30 days after CA. Nectin-2+ monocyte and Tim-3+ natural killer (NK) cell subpopulations are associated with poor outcomes, and interactome analysis highlights their crosstalk via cytokines and immune checkpoints. Ex vivo studies of peripheral blood cells from CA patients demonstrate that immune checkpoints are a compensatory mechanism against inflammation after CA. Interferon γ (IFNγ)/interleukin-10 (IL-10) induced Nectin-2 on monocytes; in a negative feedback loop, Nectin-2 suppresses IFNγ production by NK cells. CONCLUSIONS The initial hours after CA may represent a window for therapeutic intervention in the resolution of inflammation via immune checkpoints. FUNDING This work was supported by funding from the American Heart Association, Brigham and Women's Hospital Department of Medicine, the Evergreen Innovation Fund, and the National Institutes of Health.
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Affiliation(s)
- Tomoyoshi Tamura
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Changde Cheng
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Wenan Chen
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Louis T Merriam
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Humra Athar
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Yaunghyun H Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Reshmi Manandhar
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Muhammad Dawood Amir Sheikh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Mayra Pinilla-Vera
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Jack Varon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Peter C Hou
- Harvard Medical School, Boston, MA 02115, USA; Division of Emergency Critical Care Medicine, Department of Emergency Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Patrick R Lawler
- Peter Munk Cardiac Centre, Toronto General Hospital, Toronto, ON M5G 2N2, Canada; McGill University Health Centre, Montreal, QC H4A 3J1, Canada
| | - William M Oldham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Raghu R Seethala
- Harvard Medical School, Boston, MA 02115, USA; Division of Emergency Critical Care Medicine, Department of Emergency Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Yohannes Tesfaigzi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Alexandra J Weissman
- Department of Emergency Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Rebecca M Baron
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Fumito Ichinose
- Harvard Medical School, Boston, MA 02115, USA; Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Katherine M Berg
- Harvard Medical School, Boston, MA 02115, USA; Division of Pulmonary, Critical Care, and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Erin A Bohula
- Harvard Medical School, Boston, MA 02115, USA; Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - David A Morrow
- Harvard Medical School, Boston, MA 02115, USA; Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Xiang Chen
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
| | - Edy Y Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA.
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29
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Chen J, He X, Bai Y, Liu J, Wong YK, Xie L, Zhang Q, Luo P, Gao P, Gu L, Guo Q, Cheng G, Wang C, Wang J. Single-cell transcriptome analysis reveals the regulatory effects of artesunate on splenic immune cells in polymicrobial sepsis. J Pharm Anal 2023; 13:817-829. [PMID: 37577384 PMCID: PMC10422109 DOI: 10.1016/j.jpha.2023.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 02/26/2023] Open
Abstract
Sepsis is characterized by a severe and life-threatening host immune response to polymicrobial infection accompanied by organ dysfunction. Studies on the therapeutic effect and mechanism of immunomodulatory drugs on the sepsis-induced hyperinflammatory or immunosuppression states of various immune cells remain limited. This study aimed to investigate the protective effects and underlying mechanism of artesunate (ART) on the splenic microenvironment of cecal ligation and puncture-induced sepsis model mice using single-cell RNA sequencing (scRNA-seq) and experimental validations. The scRNA-seq analysis revealed that ART inhibited the activation of pro-inflammatory macrophages recruited during sepsis. ART could restore neutrophils' chemotaxis and immune function in the septic spleen. It inhibited the activation of T regulatory cells but promoted the cytotoxic function of natural killer cells during sepsis. ART also promoted the differentiation and activity of splenic B cells in mice with sepsis. These results indicated that ART could alleviate the inflammatory and/or immunosuppressive states of various immune cells involved in sepsis to balance the immune homeostasis within the host. Overall, this study provided a comprehensive investigation of the regulatory effect of ART on the splenic microenvironment in sepsis, thus contributing to the application of ART as adjunctive therapy for the clinical treatment of sepsis.
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Affiliation(s)
- Jiayun Chen
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Xueling He
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yunmeng Bai
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Jing Liu
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Yin Kwan Wong
- Department of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, 518020, China
| | - Lulin Xie
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Qian Zhang
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Piao Luo
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
| | - Peng Gao
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Liwei Gu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Qiuyan Guo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Guangqing Cheng
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Chen Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jigang Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, China
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Desai JV, Kumar D, Freiwald T, Chauss D, Johnson MD, Abers MS, Steinbrink JM, Perfect JR, Alexander B, Matzaraki V, Snarr BD, Zarakas MA, Oikonomou V, Silva LM, Shivarathri R, Beltran E, Demontel LN, Wang L, Lim JK, Launder D, Conti HR, Swamydas M, McClain MT, Moutsopoulos NM, Kazemian M, Netea MG, Kumar V, Köhl J, Kemper C, Afzali B, Lionakis MS. C5a-licensed phagocytes drive sterilizing immunity during systemic fungal infection. Cell 2023; 186:2802-2822.e22. [PMID: 37220746 PMCID: PMC10330337 DOI: 10.1016/j.cell.2023.04.031] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 03/10/2023] [Accepted: 04/21/2023] [Indexed: 05/25/2023]
Abstract
Systemic candidiasis is a common, high-mortality, nosocomial fungal infection. Unexpectedly, it has emerged as a complication of anti-complement C5-targeted monoclonal antibody treatment, indicating a critical niche for C5 in antifungal immunity. We identified transcription of complement system genes as the top biological pathway induced in candidemic patients and as predictive of candidemia. Mechanistically, C5a-C5aR1 promoted fungal clearance and host survival in a mouse model of systemic candidiasis by stimulating phagocyte effector function and ERK- and AKT-dependent survival in infected tissues. C5ar1 ablation rewired macrophage metabolism downstream of mTOR, promoting their apoptosis and enhancing mortality through kidney injury. Besides hepatocyte-derived C5, local C5 produced intrinsically by phagocytes provided a key substrate for antifungal protection. Lower serum C5a concentrations or a C5 polymorphism that decreases leukocyte C5 expression correlated independently with poor patient outcomes. Thus, local, phagocyte-derived C5 production licenses phagocyte antimicrobial function and confers innate protection during systemic fungal infection.
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Affiliation(s)
- Jigar V Desai
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy & Infectious Diseases, NIH, Bethesda, MD, USA
| | - Dhaneshwar Kumar
- Immunoregulation Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA; Departments of Biochemistry and Computer Science, Purdue University, West Lafayette, IN, USA
| | - Tilo Freiwald
- Immunoregulation Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
| | - Daniel Chauss
- Immunoregulation Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
| | | | - Michael S Abers
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy & Infectious Diseases, NIH, Bethesda, MD, USA
| | - Julie M Steinbrink
- Department of Medicine, Division of Infectious Diseases, Duke University, Durham, NC, USA
| | - John R Perfect
- Department of Medicine, Division of Infectious Diseases, Duke University, Durham, NC, USA
| | - Barbara Alexander
- Department of Medicine, Division of Infectious Diseases, Duke University, Durham, NC, USA
| | - Vasiliki Matzaraki
- Department of Genetics, University of Groningen, Groningen, the Netherlands
| | - Brendan D Snarr
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy & Infectious Diseases, NIH, Bethesda, MD, USA
| | - Marissa A Zarakas
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy & Infectious Diseases, NIH, Bethesda, MD, USA
| | - Vasileios Oikonomou
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy & Infectious Diseases, NIH, Bethesda, MD, USA
| | - Lakmali M Silva
- Oral Immunity and Infection Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD, USA
| | - Raju Shivarathri
- Center for Discovery & Innovation, Hackensack Meridian Health, Nutley, NJ, USA
| | - Emily Beltran
- Complement and Inflammation Research Section, National Heart Lung and Blood Institute, NIH, Bethesda, MD, USA
| | - Luciana Negro Demontel
- Complement and Inflammation Research Section, National Heart Lung and Blood Institute, NIH, Bethesda, MD, USA
| | - Luopin Wang
- Departments of Biochemistry and Computer Science, Purdue University, West Lafayette, IN, USA
| | - Jean K Lim
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Dylan Launder
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
| | - Heather R Conti
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
| | - Muthulekha Swamydas
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy & Infectious Diseases, NIH, Bethesda, MD, USA
| | - Micah T McClain
- Department of Medicine, Division of Infectious Diseases, Duke University, Durham, NC, USA
| | - Niki M Moutsopoulos
- Oral Immunity and Infection Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD, USA
| | - Majid Kazemian
- Departments of Biochemistry and Computer Science, Purdue University, West Lafayette, IN, USA
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University, Nijmegen, the Netherlands
| | - Vinod Kumar
- Department of Genetics, University of Groningen, Groningen, the Netherlands; Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University, Nijmegen, the Netherlands
| | - Jörg Köhl
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Claudia Kemper
- Complement and Inflammation Research Section, National Heart Lung and Blood Institute, NIH, Bethesda, MD, USA
| | - Behdad Afzali
- Immunoregulation Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
| | - Michail S Lionakis
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy & Infectious Diseases, NIH, Bethesda, MD, USA.
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Wang W, Zhou Q, Lan L, Xu X. PANoptosis-related prognostic signature predicts overall survival of cutaneous melanoma and provides insights into immune infiltration landscape. Sci Rep 2023; 13:8449. [PMID: 37231081 DOI: 10.1038/s41598-023-35462-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 05/18/2023] [Indexed: 05/27/2023] Open
Abstract
Cutaneous melanoma (CM) is a highly malignant tumor originating from melanocytes, and its metastasis and recurrence are the major causes of death in CM patients. PANoptosis is a newly defined inflammatory programmed cell death that crosstalk pyroptosis, apoptosis, and necroptosis. PANoptosis participates in the regulation of tumor progression, especially the expression of PANoptosis related genes (PARGs). Although pyroptosis, apoptosis, and necroptosis have received attention in CM, respectively, the link between them remains elusive. Therefore, this study aimed to investigate the potential regulatory role of PANoptosis and PARGs in CM and the relationship among PANoptosis, PARGs and tumor immunity. We identified 3 PARGs associated with prognosis in CM patients by The Cancer Genome Atlas. Risk model and nomogram were established. Enrichment analysis of differentially expressed genes indicated that CM was immune-related. Subsequent analyses indicated that prognosis-related PARGs were associated with immune scores and infiltration of immune cells in CM patients. In addition, immunotherapy and drug sensitivity results indicated an association between prognosis-related PARGs and drug resistance in CM patients. In conclusion, PARGs play a key role in the progression of tumors in CM patients. PARGs can be used not only for risk assessment and OS prediction in CM patients, but also reflect the immune landscape of CM patients, which can provide a novel reference for individualized tumor treatment.
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Affiliation(s)
- Wei Wang
- Department of Pharmacy, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, West Lake Road 38, Hangzhou, 310009, People's Republic of China
| | - Qingde Zhou
- Department of Pharmacy, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, West Lake Road 38, Hangzhou, 310009, People's Republic of China
| | - Lan Lan
- Department of Dermatology, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, West Lake Road 38, Hangzhou, 310009, People's Republic of China
| | - Xinchang Xu
- Department of Pharmacy, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, West Lake Road 38, Hangzhou, 310009, People's Republic of China.
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32
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Han L, Wu X, Wang O, Luan X, Velander WH, Aynardi M, Halstead ES, Bonavia AS, Jin R, Li G, Li Y, Wang Y, Dong C, Lei Y. Mesenchymal stromal cells and alpha-1 antitrypsin have a strong synergy in modulating inflammation and its resolution. Theranostics 2023; 13:2843-2862. [PMID: 37284443 PMCID: PMC10240832 DOI: 10.7150/thno.83942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/25/2023] [Indexed: 06/08/2023] Open
Abstract
Rationale: Trauma, surgery, and infection can cause severe inflammation. Both dysregulated inflammation intensity and duration can lead to significant tissue injuries, organ dysfunction, mortality, and morbidity. Anti-inflammatory drugs such as steroids and immunosuppressants can dampen inflammation intensity, but they derail inflammation resolution, compromise normal immunity, and have significant adverse effects. The natural inflammation regulator mesenchymal stromal cells (MSCs) have high therapeutic potential because of their unique capabilities to mitigate inflammation intensity, enhance normal immunity, and accelerate inflammation resolution and tissue healing. Furthermore, clinical studies have shown that MSCs are safe and effective. However, they are not potent enough, alone, to completely resolve severe inflammation and injuries. One approach to boost the potency of MSCs is to combine them with synergistic agents. We hypothesized that alpha-1 antitrypsin (A1AT), a plasma protein used clinically and has an excellent safety profile, was a promising candidate for synergism. Methods: This investigation examined the efficacy and synergy of MSCs and A1AT to mitigate inflammation and promote resolution, using in vitro inflammatory assay and in vivo mouse acute lung injury model. The in vitro assay measured cytokine releases, inflammatory pathways, reactive oxygen species (ROS), and neutrophil extracellular traps (NETs) production by neutrophils and phagocytosis in different immune cell lines. The in vivo model monitored inflammation resolution, tissue healing, and animal survival. Results: We found that the combination of MSCs and A1AT was much more effective than each component alone in i) modulating cytokine releases and inflammatory pathways, ii) inhibiting ROS and NETs production by neutrophils, iii) enhancing phagocytosis and, iv) promoting inflammation resolution, tissue healing, and animal survival. Conclusion: These results support the combined use of MSCs, and A1AT is a promising approach for managing severe, acute inflammation.
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Affiliation(s)
- Li Han
- Department of Biomedical Engineering, Pennsylvania State University; University Park, PA, 16802, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University; University Park, PA, 16802, USA
| | - Xinran Wu
- Department of Biomedical Engineering, Pennsylvania State University; University Park, PA, 16802, USA
| | - Ou Wang
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln; Lincoln, NE, 68588, USA
| | - Xiao Luan
- Biomedical Center of Qingdao University; Qingdao, Shandong, 266000, China
| | - William H. Velander
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln; Lincoln, NE, 68588, USA
| | - Michael Aynardi
- Department of Orthopedics Surgery, Pennsylvania State University College of Medicine; Hershey, PA, 17033, USA
| | - E. Scott Halstead
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Pennsylvania State Milton S Hershey Medical Center; Hershey, PA, 17033, USA
| | - Anthony S. Bonavia
- Division of Critical Care Medicine, Department of Anesthesiology and Perioperative Medicine, Pennsylvania State Milton S Hershey Medical Center; Hershey, PA, 17033, USA
| | - Rong Jin
- Department of Neurosurgery, Pennsylvania State Milton S Hershey Medical Center; Hershey, PA, 17033, USA
| | - Guohong Li
- Department of Neurosurgery, Pennsylvania State Milton S Hershey Medical Center; Hershey, PA, 17033, USA
| | - Yulong Li
- Department of Emergency Medicine, University of Nebraska Medical Center; Omaha, NE, 68105, USA
| | - Yong Wang
- Department of Biomedical Engineering, Pennsylvania State University; University Park, PA, 16802, USA
| | - Cheng Dong
- Department of Biomedical Engineering, Pennsylvania State University; University Park, PA, 16802, USA
| | - Yuguo Lei
- Department of Biomedical Engineering, Pennsylvania State University; University Park, PA, 16802, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University; University Park, PA, 16802, USA
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Xie A, Wan H, Feng L, Yang B, Wan Y. Protective Effect of Anoectochilus formosanus Polysaccharide against Cyclophosphamide-Induced Immunosuppression in BALB/c Mice. Foods 2023; 12:foods12091910. [PMID: 37174447 PMCID: PMC10178248 DOI: 10.3390/foods12091910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/27/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
In this study, Anoectochilus formosanus polysaccharide (AFP) was acquired a via water extraction and alcohol precipitation method. The immunoregulatory activity of AFP was first evaluated on cyclophosphamide (Cy)-treated mice. Galacturonic acid, glucose and galactose were confirmed to be the main components of AFP. AFP demonstrated the ability to stimulate the production of TNF-α and IL-6 in RAW 264.7 macrophages. Not surprisingly, the activation of the NF-κB signaling pathway by AFP was validated via Western blot analysis. Furthermore, AFP could alleviate Cy-induced immunosuppression, and significantly enhance the immunity of mice via increasing the thymus index and body weight, stimulating the production of cytokines (IgA, IgG, SIgA, IL-2, IL-6 and IFN-γ). The improvement in the intestinal morphology of immunosuppressed mice showed that AFP could alleviate Cy-induced immune toxicity. These results have raised the possibility that AFP may act as a natural immunomodulator. Overall, the study of AFP was innovative and of great significance for AFP's further application and utilization.
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Affiliation(s)
- Anqi Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Hao Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Lei Feng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Boyun Yang
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Yiqun Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China
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Chen H, Zhang X, Su H, Zeng J, Chan H, Li Q, Liu X, Zhang L, Wu WKK, Chan MTV, Chen H. Immune dysregulation and RNA N6-methyladenosine modification in sepsis. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 14:e1764. [PMID: 36149809 DOI: 10.1002/wrna.1764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/24/2022] [Accepted: 09/02/2022] [Indexed: 05/13/2023]
Abstract
Sepsis is defined as life-threatening organ dysfunction caused by the host immune dysregulation to infection. It is a highly heterogeneous syndrome with complex pathophysiological mechanisms. The host immune response to sepsis can be divided into hyper-inflammatory and immune-suppressive phases which could exist simultaneously. In the initial stage, systemic immune response is activated after exposure to pathogens. Both innate and adaptive immune cells undergo epigenomic, transcriptomic, and functional reprogramming, resulting in systemic and persistent inflammatory responses. Following the hyper-inflammatory phase, the body is in a state of continuous immunosuppression, which is related to immune cell apoptosis, metabolic failure, and epigenetic reprogramming. Immunosuppression leads to increased susceptibility to secondary infections in patients with sepsis. RNA N6-Methyladenosine (m6A) has been recognized as an indispensable epitranscriptomic modification involved in both physiological and pathological processes. Recent studies suggest that m6A could reprogram both innate and adaptive immune cells through posttranscriptional regulation of RNA metabolism. Dysregulated m6A modifications contribute to the pathogenesis of immune-related diseases. In this review, we summarize immune cell changes and the potential role of m6A modification in sepsis. This article is categorized under: RNA in Disease and Development > RNA in Disease RNA Processing > RNA Editing and Modification.
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Affiliation(s)
- Hongyan Chen
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaoting Zhang
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - Hao Su
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - Judeng Zeng
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Hung Chan
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Qing Li
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaodong Liu
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Lin Zhang
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - William Ka Kei Wu
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - Matthew Tak Vai Chan
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Huarong Chen
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, Guangdong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, China
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Wang X, Guo Z, Wang Z, Liao H, Wang Z, Chen F, Wang Z. Diagnostic and predictive values of pyroptosis-related genes in sepsis. Front Immunol 2023; 14:1105399. [PMID: 36817458 PMCID: PMC9932037 DOI: 10.3389/fimmu.2023.1105399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/17/2023] [Indexed: 02/04/2023] Open
Abstract
Background Sepsis is an organ dysfunction syndrome caused by the body's dysregulated response to infection. Yet, due to the heterogeneity of this disease process, the diagnosis and definition of sepsis is a critical issue in clinical work. Existing methods for early diagnosis of sepsis have low specificity. Aims This study evaluated the diagnostic and predictive values of pyroptosis-related genes in normal and sepsis patients and their role in the immune microenvironment using multiple bioinformatics analyses and machine-learning methods. Methods Pediatric sepsis microarray datasets were screened from the GEO database and the differentially expressed genes (DEGs) associated with pyroptosis were analyzed. DEGs were then subjected to multiple bioinformatics analyses. The differential immune landscape between sepsis and healthy controls was explored by screening diagnostic genes using various machine-learning models. Also, the diagnostic value of these diagnosis-related genes in sepsis (miRNAs that have regulatory relationships with genes and related drugs that have regulatory relationships) were analyzed in the internal test set and external test. Results Eight genes (CLEC5A, MALT1, NAIP, NLRC4, SERPINB1, SIRT1, STAT3, and TLR2) related to sepsis diagnosis were screened by multiple machine learning algorithms. The CIBERSORT algorithm confirmed that these genes were significantly correlated with the infiltration abundance of some immune cells and immune checkpoint sites (all P<0.05). SIRT1, STAT3, and TLR2 were identified by the DGIdb database as potentially regulated by multiple drugs. Finally, 7 genes were verified to have significantly different expressions between the sepsis group and the control group (P<0.05). Conclusion The pyroptosis-related genes identified and verified in this study may provide a useful reference for the prediction and assessment of sepsis.
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Affiliation(s)
- Xuesong Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Zhe Guo
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Ziyi Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Haiyan Liao
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Ziwen Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Feng Chen
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Zhong Wang
- Department of General Medicine, Beijing Tsinghua Changgung Hospital affiliated to Tsinghua University, Beijing, China,*Correspondence: Zhong Wang,
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Gandhirajan A, Roychowdhury S, Kibler C, Cross E, Abraham S, Bellar A, Nagy LE, Scheraga RG, Vachharajani V. SIRT2-PFKP interaction dysregulates phagocytosis in macrophages with acute ethanol-exposure. Front Immunol 2023; 13:1079962. [PMID: 36865524 PMCID: PMC9972587 DOI: 10.3389/fimmu.2022.1079962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/27/2022] [Indexed: 01/28/2023] Open
Abstract
Alcohol abuse, reported by 1/8th critically ill patients, is an independent risk factor for death in sepsis. Sepsis kills over 270,000 patients/year in the US. We reported that the ethanol-exposure suppresses innate-immune response, pathogen clearance, and decreases survival in sepsis-mice via sirtuin 2 (SIRT2). SIRT2 is an NAD+-dependent histone-deacetylase with anti-inflammatory properties. We hypothesized that in ethanol-exposed macrophages, SIRT2 suppresses phagocytosis and pathogen clearance by regulating glycolysis. Immune cells use glycolysis to fuel increased metabolic and energy demand of phagocytosis. Using ethanol-exposed mouse bone marrow- and human blood monocyte-derived macrophages, we found that SIRT2 mutes glycolysis via deacetylating key glycolysis regulating enzyme phosphofructokinase-platelet isoform (PFKP), at mouse lysine 394 (mK394, human: hK395). Acetylation of PFKP at mK394 (hK395) is crucial for PFKP function as a glycolysis regulating enzyme. The PFKP also facilitates phosphorylation and activation of autophagy related protein 4B (Atg4B). Atg4B activates microtubule associated protein 1 light chain-3B (LC3). LC3 is a driver of a subset of phagocytosis, the LC3-associated phagocytosis (LAP), which is crucial for segregation and enhanced clearance of pathogens, in sepsis. We found that in ethanol-exposed cells, the SIRT2-PFKP interaction leads to decreased Atg4B-phosphorylation, decreased LC3 activation, repressed phagocytosis and LAP. Genetic deficiency or pharmacological inhibition of SIRT2 reverse PFKP-deacetylation, suppressed LC3-activation and phagocytosis including LAP, in ethanol-exposed macrophages to improve bacterial clearance and survival in ethanol with sepsis mice.
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Affiliation(s)
- Anugraha Gandhirajan
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
| | - Sanjoy Roychowdhury
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
| | - Christopher Kibler
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
| | - Emily Cross
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
| | - Susamma Abraham
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
| | - Annett Bellar
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
| | - Laura E. Nagy
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
| | - Rachel Greenberg Scheraga
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Vidula Vachharajani
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, Cleveland, OH, United States
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, United States
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Qin Y, Bao X, Zheng M. CD8 + T-cell immunity orchestrated by iNKT cells. Front Immunol 2023; 13:1109347. [PMID: 36741397 PMCID: PMC9889858 DOI: 10.3389/fimmu.2022.1109347] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 12/30/2022] [Indexed: 01/19/2023] Open
Abstract
CD8+ T cells belonging to the adaptive immune system play key roles in defending against viral infections and cancers. The current CD8+ T cell-based immunotherapy has emerged as a superior therapeutic avenue for the eradication of tumor cells and long-term prevention of their recurrence in hematologic malignancies. It is believed that an effective adaptive immune response critically relies on the help of the innate compartment. Invariant natural killer T (iNKT) cells are innate-like T lymphocytes that have been considered some of the first cells to respond to infections and can secrete a large amount of diverse cytokines and chemokines to widely modulate the innate and adaptive immune responders. Like CD8+ T cells, iNKT cells also play an important role in defense against intracellular pathogenic infections and cancers. In this review, we will discuss the CD8+ T-cell immunity contributed by iNKT cells, including iNKT cell-mediated cross-priming and memory formation, and discuss recent advances in our understanding of the mechanisms underlying memory CD8+ T-cell differentiation, as well as aging-induced impairment of T-cell immunity.
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Xu J, Gao C, He Y, Fang X, Sun D, Peng Z, Xiao H, Sun M, Zhang P, Zhou T, Yang X, Yu Y, Li R, Zou X, Shu H, Qiu Y, Zhou X, Yuan S, Yao S, Shang Y. NLRC3 expression in macrophage impairs glycolysis and host immune defense by modulating the NF-κB-NFAT5 complex during septic immunosuppression. Mol Ther 2023; 31:154-173. [PMID: 36068919 PMCID: PMC9840117 DOI: 10.1016/j.ymthe.2022.08.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/23/2022] [Accepted: 08/30/2022] [Indexed: 01/28/2023] Open
Abstract
Impairment of innate immune cell function and metabolism underlies immunosuppression in sepsis; however, a promising therapy to orchestrate this impairment is currently lacking. In this study, high levels of NOD-like receptor family CARD domain containing-3 (NLRC3) correlated with the glycolytic defects of monocytes/macrophages from septic patients and mice that developed immunosuppression. Myeloid-specific NLRC3 deletion improved macrophage glycolysis and sepsis-induced immunosuppression. Mechanistically, NLRC3 inhibits nuclear factor (NF)-κB p65 binding to nuclear factor of activated T cells 5 (NFAT5), which further controls the expression of glycolytic genes and proinflammatory cytokines of immunosuppressive macrophages. This is achieved by decreasing NF-κB activation-co-induced by TNF-receptor-associated factor 6 (TRAF6) or mammalian target of rapamycin (mTOR)-and decreasing transcriptional co-activator p300 activity by inducing NLRC3 sequestration of mTOR and p300. Genetic inhibition of NLRC3 disrupted the NLRC3-mTOR-p300 complex and enhanced NF-κB binding to the NFAT5 promoter in concert with p300. Furthermore, intrapulmonary delivery of recombinant adeno-associated virus harboring a macrophage-specific NLRC3 deletion vector significantly improved the defense of septic mice that developed immunosuppression upon secondary intratracheal bacterial challenge. Collectively, these findings indicate that NLRC3 mediates critical aspects of innate immunity that contribute to an immunocompromised state during sepsis and identify potential therapeutic targets.
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Affiliation(s)
- Jiqian Xu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chenggang Gao
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yajun He
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiangzhi Fang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Deyi Sun
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhekang Peng
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hairong Xiao
- Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Miaomiao Sun
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Pei Zhang
- Department of Paediatrics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210016, China
| | - Ting Zhou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaobo Yang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuan Yu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ruiting Li
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaojing Zou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Huaqing Shu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yang Qiu
- State Key Laboratory of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan Institute of Virology, Wuhan 43007, China
| | - Xi Zhou
- State Key Laboratory of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan Institute of Virology, Wuhan 43007, China
| | - Shiying Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shanglong Yao
- Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - You Shang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Wang F, Cui Y, He D, Gong L, Liang H. Natural killer cells in sepsis: Friends or foes? Front Immunol 2023; 14:1101918. [PMID: 36776839 PMCID: PMC9909201 DOI: 10.3389/fimmu.2023.1101918] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/09/2023] [Indexed: 01/27/2023] Open
Abstract
Sepsis is one of the major causes of death in the hospital worldwide. The pathology of sepsis is tightly associated with dysregulation of innate immune responses. The contribution of macrophages, neutrophils, and dendritic cells to sepsis is well documented, whereas the role of natural killer (NK) cells, which are critical innate lymphoid lineage cells, remains unclear. In some studies, the activation of NK cells has been reported as a risk factor leading to severe organ damage or death. In sharp contrast, some other studies revealed that triggering NK cell activity contributes to alleviating sepsis. In all, although there are several reports on NK cells in sepsis, whether they exert detrimental or protective effects remains unclear. Here, we will review the available experimental and clinical studies about the opposing roles of NK cells in sepsis, and we will discuss the prospects for NK cell-based immunotherapeutic strategies for sepsis.
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Affiliation(s)
- Fangjie Wang
- State Key Laboratory of Trauma, Burns and Combines Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yiqin Cui
- State Key Laboratory of Trauma, Burns and Combines Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Dongmei He
- State Key Laboratory of Trauma, Burns and Combines Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Lisha Gong
- School of Laboratory Medicine and Technology, Harbin Medical University, Daqing, China
| | - Huaping Liang
- State Key Laboratory of Trauma, Burns and Combines Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
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Yin RH, Zhang B, Zhou XH, Cao LP, Li M. Value of inflammatory mediator profiles and procalcitonin in predicting postoperative infection in patients with hypertensive cerebral hemorrhage. World J Clin Cases 2022; 10:12936-12945. [PMID: 36569019 PMCID: PMC9782956 DOI: 10.12998/wjcc.v10.i35.12936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/08/2022] [Accepted: 11/14/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Hypertensive cerebral hemorrhage (HICH) is a common clinical cerebrovascular disease and one of the most serious complications of hypertension. Early warning of the occurrence of infection during treatment and timely anti-infective treatment are of great significance for the early prevention and treatment of postoperative infection in patients with HICH. Changes in the levels of inflammatory mediators, which are closely related to the occurrence and development of postoperative infection, and procalcitonin (PCT), which is a sensitive indicator for diagnosing bacterial infections, are widely used in clinical practice.
AIM To explore the application value of inflammatory mediator profiles and PCT in predicting postoperative infection in patients with HICH.
METHODS A total of 271 patients who underwent HICH surgery at our hospital between March 2019 and March 2021 were selected and divided into the infection (n = 80) and non-infection (n = 191) groups according to whether postoperative infection occurred. The postoperative infection status and etiological characteristics of the infective pathogens in the infection group were analyzed. Changes in inflammatory mediator profile indices and PCT levels were compared between the two groups, pre- and postoperatively.
RESULTS A total of 109 strains of pathogenic bacteria were detected in the infection group, including 67 strains (61.47%) of gram-negative bacteria, 32 strains (29.36%) of gram-positive bacteria, and 10 strains (9.17%) of fungi. The main infection site of the patients in the infection group was the respiratory system (63.75%). Preoperative interleukin (IL)-4, IL-6, IL-10, tumor necrosis factor-α, interferon-γ, and PCT levels were higher in the infection group than in the non-infection group (P < 0.05), and there were no significant differences in the IL-2 Levels between the two groups (P > 0.05). The inflammatory mediator profile indices and PCT levels were higher in the two groups of patients on the first postoperative day than preoperatively (P < 0.05), and were higher than those in the non-infection group (P < 0.05). Logistic regression analysis showed that preoperative IL-6 and PCT levels correlated with postoperative infection (P < 0.05). Operating characteristic curve analysis results showed that the area under the curve (AUC) values of preoperative IL-6 and PCT levels in predicting postoperative infection in patients with HICH were 0.755 and 0.824, respectively. The AUC value of joint detection was 0.866, which was significantly higher than that of the single index (P < 0.05).
CONCLUSION Preoperative IL-6 and PCT levels are correlated with postoperative infection in patients with HICH. Their detection is clinically significant for early identification of patients at high risk for postoperative infection.
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Affiliation(s)
- Rang-Hua Yin
- Department of Surgery, Ji’an City Hospital of Traditional Chinese Medicine, Ji’an 343000, Jiangxi Province, China
| | - Bin Zhang
- Department of Surgery, Ji’an City Hospital of Traditional Chinese Medicine, Ji’an 343000, Jiangxi Province, China
| | - Xing-He Zhou
- Department of Surgery, Ji’an City Hospital of Traditional Chinese Medicine, Ji’an 343000, Jiangxi Province, China
| | - Lu-Ping Cao
- Department of Surgery, Ji’an City Hospital of Traditional Chinese Medicine, Ji’an 343000, Jiangxi Province, China
| | - Ming Li
- Department of Surgery, Ji’an City Hospital of Traditional Chinese Medicine, Ji’an 343000, Jiangxi Province, China
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Diversity of Circulating NKT Cells in Defense against Carbapenem-Resistant Klebsiella Pneumoniae Infection. J Pers Med 2022; 12:jpm12122025. [PMID: 36556247 PMCID: PMC9783671 DOI: 10.3390/jpm12122025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Nosocomial infection caused by carbapenem-resistant Klebsiella pneumonia (CRKP) infection has become a global public health problem. Human NK and NKT cells in peripheral immune responses are recognized as occupying a critical role in anti-bacterial immunity. Through performed scRNA-seq on serial peripheral blood samples from 3 patients with CRKP undergoing colonization, infection, and recovery conditions, we were able to described the immune responses of NK and NKT cells during CRKP infection and identified a mechanism that could contribute to CRKP clearance. The central player of CRKP infection process appears to be the NKT subset and CD56hiNKT subset which maintained immune competence during CRKP colonization. With time, CRKP leads to the loss of NK and CD160hiNKT cells in peripheral blood, resulting in suppressed immune responses and increased susceptibility to opportunistic infection. In summary, our study identified a possible mechanism for the CRKP invasion and to decipher the clues behind the host immune response that influences CRKP infection pathogenesis.
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He H, Huang T, Guo S, Yu F, Shen H, Shao H, Chen K, Zhang L, Wu Y, Tang X, Yuan X, Liu J, Zhou Y. Identification of a novel sepsis prognosis model and analysis of possible drug application prospects: Based on scRNA-seq and RNA-seq data. Front Immunol 2022; 13:888891. [PMID: 36389695 PMCID: PMC9650379 DOI: 10.3389/fimmu.2022.888891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 10/11/2022] [Indexed: 08/18/2023] Open
Abstract
Sepsis is a disease with a high morbidity and mortality rate. At present, there is a lack of ideal biomarker prognostic models for sepsis and promising studies using prognostic models to predict and guide the clinical use of medications. In this study, 71 differentially expressed genes (DEGs) were obtained by analyzing single-cell RNA sequencing (scRNA-seq) and transcriptome RNA-seq data, and Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment pathway analyses were performed on these genes. Then, a prognosis model with CCL5, HBD, IFR2BP2, LTB, and WFDC1 as prognostic signatures was successfully constructed after univariate LASSO regression analysis and multivariate Cox regression analysis. Kaplan-Meier (K-M) survival analysis, receiver operating characteristic (ROC) time curve analysis, internal validation, and principal component analysis (PCA) further validated the model for its high stability and predictive power. Furthermore, based on a risk prediction model, gene set enrichment analysis (GSEA) showed that multiple cellular functions and immune function signaling pathways were significantly different between the high- and low-risk groups. In-depth analysis of the distribution of immune cells in healthy individuals and sepsis patients using scRNA-seq data revealed immunosuppression in sepsis patients and differences in the abundance of immune cells between the high- and low-risk groups. Finally, the genetic targets of immunosuppression-related drugs were used to accurately predict the potential use of clinical agents in high-risk patients with sepsis.
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Affiliation(s)
- Haihong He
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Tingting Huang
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Shixing Guo
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Fan Yu
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Hongwei Shen
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Haibin Shao
- Department of General Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Keyan Chen
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Lijun Zhang
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Yunfeng Wu
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Xi Tang
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Xinhua Yuan
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Jiao Liu
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Yiwen Zhou
- Department of Emergency Laboratory, Clinical Laboratory Medical Center, Shenzhen Hospital, Southern Medical University, Shenzhen, China
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Gu X, Chu Q, Ma X, Wang J, Chen C, Guan J, Ren Y, Wu S, Zhu H. New insights into iNKT cells and their roles in liver diseases. Front Immunol 2022; 13:1035950. [PMID: 36389715 PMCID: PMC9643775 DOI: 10.3389/fimmu.2022.1035950] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/14/2022] [Indexed: 08/29/2023] Open
Abstract
Natural killer T cells (NKTs) are an important part of the immune system. Since their discovery in the 1990s, researchers have gained deeper insights into the physiology and functions of these cells in many liver diseases. NKT cells are divided into two subsets, type I and type II. Type I NKT cells are also named iNKT cells as they express a semi-invariant T cell-receptor (TCR) α chain. As part of the innate immune system, hepatic iNKT cells interact with hepatocytes, macrophages (Kupffer cells), T cells, and dendritic cells through direct cell-to-cell contact and cytokine secretion, bridging the innate and adaptive immune systems. A better understanding of hepatic iNKT cells is necessary for finding new methods of treating liver disease including autoimmune liver diseases, alcoholic liver diseases (ALDs), non-alcoholic fatty liver diseases (NAFLDs), and liver tumors. Here we summarize how iNKT cells are activated, how they interact with other cells, and how they function in the presence of liver disease.
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Affiliation(s)
- Xinyu Gu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qingfei Chu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao Ma
- Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chao Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Guan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yanli Ren
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shanshan Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haihong Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Antoni AC, Pylaeva E, Budeus B, Jablonska J, Klein-Hitpaß L, Dudda M, Flohé SB. TLR2-induced CD8+ T-cell deactivation shapes dendritic cell differentiation in the bone marrow during sepsis. Front Immunol 2022; 13:945409. [PMID: 36148245 PMCID: PMC9488929 DOI: 10.3389/fimmu.2022.945409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/15/2022] [Indexed: 11/17/2022] Open
Abstract
Sepsis is associated with profound immune dysregulation that increases the risk for life-threatening secondary infections: Dendritic cells (DCs) undergo functional reprogramming due to yet unknown changes during differentiation in the bone marrow (BM). In parallel, lymphopenia and exhaustion of T lymphocytes interfere with antigen-specific adaptive immunity. We hypothesized that there exists a link between T cells and the modulation of DC differentiation in the BM during murine polymicrobial sepsis. Sepsis was induced by cecal ligation and puncture (CLP), a model for human bacterial sepsis. At different time points after CLP, the BM and spleen were analyzed in terms of T-cell subpopulations, activation, and Interferon (IFN)-γ synthesis as well as the number of pre-DCs. BM-derived DCs were generated in vitro. We observed that naïve and virtual memory CD8+ T cells, but not CD4+ T cells, were activated in an antigen-independent manner and accumulated in the BM early after CLP, whereas lymphopenia was evident in the spleen. The number of pre-DCs strongly declined during acute sepsis in the BM and almost recovered by day 4 after CLP, which required the presence of CD8+ T cells. Adoptive transfer experiments and in vitro studies with purified T cells revealed that Toll-like receptor 2 (TLR2) signaling in CD8+ T cells suppressed their capacity to secrete IFN-γ and was sufficient to change the transcriptome of the BM during sepsis. Moreover, the diminished IFN-γ production of CD8+ T cells favored the differentiation of DCs with increased production of the immune-activating cytokine Interleukin (IL)-12. These data identify a novel role of CD8+ T cells in the BM during sepsis as they sense TLR2 ligands and control the number and function of de novo differentiating DCs.
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Affiliation(s)
- Anne-Charlotte Antoni
- Department of Trauma, Hand, and Reconstructive Surgery, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Ekaterina Pylaeva
- Department of Otorhinolaryngology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Bettina Budeus
- Institute of Cell Biology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Jadwiga Jablonska
- Department of Otorhinolaryngology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Ludger Klein-Hitpaß
- Institute of Cell Biology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Marcel Dudda
- Department of Trauma, Hand, and Reconstructive Surgery, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Stefanie B. Flohé
- Department of Trauma, Hand, and Reconstructive Surgery, University Hospital Essen, University Duisburg-Essen, Essen, Germany
- *Correspondence: Stefanie B. Flohé,
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Geng F, Liu W, Yu L. MicroRNA-451a and Th1/Th2 ratio inform inflammation, septic organ injury, and mortality risk in sepsis patients. Front Microbiol 2022; 13:947139. [PMID: 35992658 PMCID: PMC9386504 DOI: 10.3389/fmicb.2022.947139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/27/2022] [Indexed: 11/15/2022] Open
Abstract
Aims MicroRNA-451a (miR-451a) regulates Th1/Th2 cell differentiation, inflammation, and septic organ injury in several experiments. Therefore, the present study aimed to explore the inter-correlation of miR-451a with the Th1/Th2 ratio, and their association with inflammation, septic organ injury, and mortality risk in patients with sepsis. Methods Consecutively, 117 patients with sepsis and 50 healthy controls (HCs) were enrolled. Peripheral blood mononuclear cell samples were collected to detect miR-451a expression and the Th1/Th2 ratio in all subjects. Results MiR-451a (p < 0.001), Th1 cells (p = 0.014), and the Th1/Th2 ratio (p < 0.001) increased, while Th2 cells (p < 0.001) declined in patients with sepsis compared with HCs. It was of note that miR-451a was positively correlated with Th1 cells (p = 0.002) and the Th1/Th2 ratio (p = 0.001), while it was negatively related to Th2 cells (p = 0.005) in patients with sepsis. Meanwhile, miR-451a and the Th1/Th2 ratio correlated with most of the following indexes: TNF-α, IL-1β, IL-6, C-reactive protein, sequential organ failure assessment (SOFA) score, or Acute Physiology and Chronic Health Evaluation II (APACHE II) score (most p < 0.05). Moreover, miR-451a (p < 0.001) and the Th1/Th2 ratio (p = 0.001) increased in deaths compared to survivors of sepsis; further ROC curve showed both miR-451a and the Th1/Th2 ratio possessed a certain value to predict mortality of patients with sepsis. Additionally, the Th1/Th2 ratio [odds ratio (OR): 2.052, p = 0.005] was independently related to 28-day mortality risk from multivariate logistic regression. Conclusion MiR-451a correlates with the Th1/Th2 ratio, and they both relate to inflammation, septic organ injury, and mortality risk in patients with sepsis.
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Loureiro JP, Cruz MS, Cardoso AP, Oliveira MJ, Macedo MF. Human iNKT Cells Modulate Macrophage Survival and Phenotype. Biomedicines 2022; 10:1723. [PMID: 35885028 PMCID: PMC9313099 DOI: 10.3390/biomedicines10071723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 11/16/2022] Open
Abstract
CD1d-restricted invariant Natural Killer T (iNKT) cells are unconventional innate-like T cells whose functions highly depend on the interactions they establish with other immune cells. Although extensive studies have been reported on the communication between iNKT cells and macrophages in mice, less data is available regarding the relevance of this crosstalk in humans. Here, we dove into the human macrophage-iNKT cell axis by exploring how iNKT cells impact the survival and polarization of pro-inflammatory M1-like and anti-inflammatory M2-like monocyte-derived macrophages. By performing in vitro iNKT cell-macrophage co-cultures followed by flow cytometry analysis, we demonstrated that antigen-stimulated iNKT cells induce a generalized activated state on all macrophage subsets, leading to upregulation of CD40 and CD86 expression. CD40L blocking with a specific monoclonal antibody prior to co-cultures abrogated CD40 and CD86 upregulation, thus indicating that iNKT cells required CD40-CD40L co-stimulation to trigger macrophage activation. In addition, activated iNKT cells were cytotoxic towards macrophages in a CD1d-dependent manner, killing M1-like macrophages more efficiently than their naïve M0 or anti-inflammatory M2-like counterparts. Hence, this work highlighted the role of human iNKT cells as modulators of macrophage survival and phenotype, untangling key features of the human macrophage-iNKT cell axis and opening perspectives for future therapeutic modulation.
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Affiliation(s)
- J. Pedro Loureiro
- Cell Activation and Gene Expression Group, Institute for Molecular and Cell Biology (IBMC), Institute for Research and Innovation in Health (i3S), University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (J.P.L.); (M.S.C.)
- Experimental Immunology Group, Department of Biomedicine (DBM), University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Mariana S. Cruz
- Cell Activation and Gene Expression Group, Institute for Molecular and Cell Biology (IBMC), Institute for Research and Innovation in Health (i3S), University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (J.P.L.); (M.S.C.)
- Department of Medical Sciences, University of Aveiro (UA), 3810-193 Aveiro, Portugal
| | - Ana P. Cardoso
- Tumour and Microenvironment Interactions Group, Institute of Biomedical Engineering (INEB), Institute for Research and Innovation in Health (i3S), University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.C.); (M.J.O.)
| | - Maria J. Oliveira
- Tumour and Microenvironment Interactions Group, Institute of Biomedical Engineering (INEB), Institute for Research and Innovation in Health (i3S), University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.C.); (M.J.O.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - M. Fátima Macedo
- Cell Activation and Gene Expression Group, Institute for Molecular and Cell Biology (IBMC), Institute for Research and Innovation in Health (i3S), University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (J.P.L.); (M.S.C.)
- Department of Medical Sciences, University of Aveiro (UA), 3810-193 Aveiro, Portugal
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47
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Van Kaer L, Postoak JL, Song W, Wu L. Innate and Innate-like Effector Lymphocytes in Health and Disease. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:199-207. [PMID: 35821102 PMCID: PMC9285656 DOI: 10.4049/jimmunol.2200074] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/11/2022] [Indexed: 04/20/2023]
Abstract
Lymphocytes can be functionally partitioned into subsets belonging to the innate or adaptive arms of the immune system. Subsets of innate and innate-like lymphocytes may or may not express Ag-specific receptors of the adaptive immune system, yet they are poised to respond with innate-like speed to pathogenic insults but lack the capacity to develop classical immunological memory. These lymphocyte subsets display a number of common properties that permit them to integrate danger and stress signals dispatched by innate sensor cells to facilitate the generation of specialized effector immune responses tailored toward specific pathogens or other insults. In this review, we discuss the functions of distinct subsets of innate and innate-like lymphocytes. A better understanding of the mechanisms by which these cells are activated in different contexts, their interactions with other immune cells, and their role in health and disease may inform the development of new or improved immunotherapies.
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Affiliation(s)
- Luc Van Kaer
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN
| | - J Luke Postoak
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN
| | - Wenqiang Song
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN
| | - Lan Wu
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN
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48
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Wang H, Xuan P, Tian H, Hao X, Yang J, Xu X, Qiao L. Adipose‑derived mesenchymal stem cell‑derived HCAR1 regulates immune response in the attenuation of sepsis. Mol Med Rep 2022; 26:279. [PMID: 35856408 PMCID: PMC9364135 DOI: 10.3892/mmr.2022.12795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 06/15/2022] [Indexed: 01/09/2023] Open
Abstract
Sepsis serves as a leading cause of admission to and death of patients in the intensive care unit (ICU) and is described as a systemic inflammatory response syndrome caused by abnormal host response to infection. Adipose‑derived mesenchymal stem cells (ADSCs) have exhibited reliable and promising clinical application potential in multiple disorders. However, the function and the mechanism of ADSCs in sepsis remain elusive. In the present study, the crucial inhibitory effect of ADSC‑derived hydroxy‑carboxylic acid receptor 1 (HCAR1) on sepsis was identified. Reverse transcription quantitative‑PCR determined that the mRNA expression of HCAR1 was reduced while the mRNA expression of Toll‑like receptor 4 (TLR4), major histocompatibility complex class II (MHC II), NOD‑like receptor family pyrin domain containing 3 (NLRP3), and the levels of interleukin‑1β (IL‑1β), tumor necrosis factor‑α (TNF‑α), interleukin‑10 (IL‑10), and interleukin‑18 (IL‑18) were enhanced in the peripheral blood of patients with sepsis. The expression of HCAR1 was negatively correlated with TLR4 (r=‑0.666), MHC II (r=‑0.587), and NLRP3 (r=‑0.621) expression and the expression of TLR4 was positively correlated with NLRP3 (r=0.641), IL‑1β (r=0.666), TNF‑α (r=0.606), and IL‑18 (r=0.624) levels in the samples. Receiver operating characteristic (ROC) curve analysis revealed that the area under the ROC curve (AUC) of HCAR1, TLR4, MHC II and NLRP3 mRNA expression was 0.830, 0.853, 0.735 and 0.945, respectively, in which NLRP3 exhibited the highest diagnostic value, and the AUC values of IL‑1β, IL‑18, TNF‑α, and IL‑10 were 0.751, 0.841, 0.924 and 0.729, respectively, in which TNF‑α exhibited the highest diagnostic value. A sepsis rat model was established by injecting lipopolysaccharide (LPS) and the rats were randomly divided into 5 groups, including a normal control group (NC group; n=6), a sepsis model group (LPS group; n=6), an ADSC transplantation group (L + M group; n=6), a combined HCAR1 receptor agonist group [L + HCAR1 inducer (Gi) + M group; n=6], and a combined HCAR1 receptor inhibitor group [L + HCAR1 blocker (Gk) + M group; n=6]. Hematoxylin and eosin staining determined that ADSCs attenuated the lung injury of septic rats and ADSC‑derived HCAR1 enhanced the effect of ADSCs. The expression of HCAR1, TLR4, MHC II, NLRP3, IL‑1β, IL‑18 and TNF‑α levels were suppressed by ADSCs and the effect was further induced by ADSC‑derived HCAR1. However, ADSC‑derived HCAR1 induced the levels of anti‑inflammatory factor IL‑10. The negative correlation of HCAR1 expression with TLR4, MHC II, and NLRP3 expression in the peripheral blood and lung tissues of the rats was then identified. It is thus concluded that ADSC‑derived HCAR1 regulates immune response in the attenuation of sepsis. ADSC‑derived HCAR1 may be a promising therapeutic strategy for sepsis.
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Affiliation(s)
- Hongyan Wang
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Pengfei Xuan
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Hongjun Tian
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Xinyu Hao
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Jingping Yang
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Xiyuan Xu
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China,Correspondence to: Dr Xiyuan Xu or Dr Lixia Qiao, Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, 20 Shaoxian Road, Kundulun, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China, E-mail: , E-mail:
| | - Lixia Qiao
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China,Correspondence to: Dr Xiyuan Xu or Dr Lixia Qiao, Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, 20 Shaoxian Road, Kundulun, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China, E-mail: , E-mail:
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49
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Crosstalk between macrophages and innate lymphoid cells (ILCs) in diseases. Int Immunopharmacol 2022; 110:108937. [PMID: 35779490 DOI: 10.1016/j.intimp.2022.108937] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/01/2022] [Accepted: 06/07/2022] [Indexed: 12/15/2022]
Abstract
Innate lymphoid cells (ILCs) and macrophages are tissue-resident cells that play important roles in tissue-immune homeostasis and immune regulation. ILCs are mainly distributed on the barrier surfaces of mammals to ensure immunity or tissue homeostasis following host, microbial, or environmental stimulation. Their complex relationships with different organs enable them to respond quickly to disturbances in environmental conditions and organ homeostasis, such as during infections and tissue damage. Gradually emerging evidence suggests that ILCs also play complex and diverse roles in macrophage development, homeostasis, polarization, inflammation, and viral infection. In turn, macrophages also determine the fate of ILCs to some extent, which indicates that network crossover between these interactions is a key determinant of the immune response. More work is needed to better define the crosstalk of ILCs with macrophages in different tissues and demonstrate how it is affected during inflammation and other diseases. Here, we summarize current research on the functional interactions between ILCs and macrophages and consider the potential therapeutic utility of these interactions for the benefit of human health.
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50
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Lang X, Shen L, Zhu T, Zhao W, Chen Y, Zhu C, Su Q, Wang C, Wang Y, Neri F, Jiang H, Chen J. Role of Age-Related Changes in DNA Methylation in the Disproportionate Susceptibility and Worse Outcomes of Sepsis in Older Adults. Front Med (Lausanne) 2022; 9:822847. [PMID: 35242787 PMCID: PMC8886726 DOI: 10.3389/fmed.2022.822847] [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: 11/26/2021] [Accepted: 01/14/2022] [Indexed: 11/13/2022] Open
Abstract
Sepsis, a complex multisystem disorder, is among the top causes of hospitalization and mortality in older adults. However, the mechanisms underlying the disproportionate susceptibility to sepsis and worse outcomes in the elderly are not well understood. Recently, changes in DNA methylation have been shown to be linked to aging processes and age-related diseases. Thus, we postulated that age-related changes in DNA methylation may play a role in the onset and prognosis of sepsis in elderly patients. Here, we performed genome-wide methylation profiling of peripheral blood from patients with sepsis and controls. Among the CpG sites whose methylation changes may contribute to an increase in sepsis susceptibility or mortality, 241 sites that possessed age-related changes in DNA methylation in controls may partly explain the increased risk of sepsis in older adults, and 161 sites whose methylation significantly correlated with age in sepsis group may be the potential mechanisms underlying the worse outcomes of elderly septic patients. Finally, an independent cohort was used to validate our findings. Together, our study demonstrates that age-related changes in DNA methylation may explain in part the disproportionate susceptibility and worse outcomes of sepsis in older adults.
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Affiliation(s)
- Xiabing Lang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Lingling Shen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Tingting Zhu
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Wenjun Zhao
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Yang Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Chaohong Zhu
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Qun Su
- Critical Care Medicine Department, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Cuili Wang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Yucheng Wang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Francesco Neri
- Life Sciences and Systems Biology Department, University of Turin, Turin, Italy
| | - Hong Jiang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jianghua Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Nephropathy, Hangzhou, China.,Institute of Nephropathy, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
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