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Jiang J, Zhang D, Liu W, Yang J, Yang F, Liu J, Hu K. Overexpression of NLRP12 enhances macrophage immune response and alleviates herpes simplex keratitis. Front Cell Infect Microbiol 2024; 14:1416105. [PMID: 39119293 PMCID: PMC11306119 DOI: 10.3389/fcimb.2024.1416105] [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: 04/11/2024] [Accepted: 06/27/2024] [Indexed: 08/10/2024] Open
Abstract
Introduction Herpes simplex keratitis (HSK) is a blinding disease caused by corneal infection of Herpes simplex virus type 1 (HSV-1). Effective clearance of HSV-1 from the infected cornea is crucial for HSK management. Macrophages play an important part in the innate immune defense against viral infections. This study investigates the immunomodulatory role of NLRP12 in macrophage immune response during HSV-1 infection. Methods NLRP12 expression post-infection was assessed in various macrophage cell lines. Overexpression of NLRP12 was achieved by lentiviral transfection, and its effect on HSV-1 replication and immune responses were examined. Mechanistic insights into the role of NLRP12 were explored using immunofluorescence and Western Blot. For in vivo studies, ocular adoptive transfer of NLRP12-overexpressing bone marrow derived macrophages (BMDMs) was performed. HSV-1 viral loads, HSK symptoms, and macrophage-mediated immune responses were investigated. Results A significant decrease in NLRP12 expression post-infection was observed in various macrophage cell lines. Overexpression of NLRP12 in macrophages reduced HSV-1 replication. Mechanistically, overexpression of NLRP12 triggered early and robust pyroptosis in response to HSV-1 infection, inducing interleukin (IL)-18 production and activating downstream antiviral responses through the JAK-STAT signaling pathway. In vivo, ocular adoptive transfer of NLRP12-overexpressing BMDMs to mouse corneas alleviated HSK damage and reduced HSV-1 viral loads. NLRP12-overexpressing BMDMs improved antiviral responses in the cornea and promoted the maturation of corneal-infiltrating macrophages and dendritic cells. Additionally, NLRP12-overexpressing BMDMs amplified the adaptive immune response in the submandibular draining lymph nodes. Discussion These findings highlight the role of NLRP12 in macrophage-mediated immune response against HSV-1 infection and suggest its potential for possible immunotherapy for HSK.
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Affiliation(s)
- Jiaxuan Jiang
- Department of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Di Zhang
- Department of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Wei Liu
- Department of Ophthalmology, Linyi Bright Eye Hospital, Linyi, China
| | - Jingya Yang
- Department of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Fan Yang
- Department of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Junpeng Liu
- Department of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Kai Hu
- Department of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
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Li X, Zhou G, Sun X, Qu S, Lai H, Wu Y, Li D, Liu L, Zhang G, Yang J, Huang X. NLRP12 Senses the SARS-CoV-2 Membrane Protein and Promotes an Inflammatory Response. J Infect Dis 2024; 229:660-670. [PMID: 37976229 DOI: 10.1093/infdis/jiad458] [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: 01/12/2023] [Indexed: 11/19/2023] Open
Abstract
COVID-19 is an acute respiratory disorder that is caused by SARS-CoV-2, in which excessive systemic inflammation is associated with adverse patient clinical outcomes. Here, we observed elevated expression levels of NLRP12 (nucleotide-binding leucine-rich repeat-containing receptor 12) in human peripheral monocytes and lung tissue during infection with SARS-CoV-2. Co-immunoprecipitation analysis revealed that NLRP12 directly interacted with the M protein through its leucine-rich repeat domain. Moreover, in vitro studies demonstrated that NLRP12 interacted with TRAF3 and promoted its ubiquitination and degradation, which counteracted the inhibitory effect of TRAF3 on the NF-κB/MAPK signaling pathway and promoted the production of inflammatory cytokines. Furthermore, an in vivo study revealed that NLRP12 knockout mice displayed attenuated tissue injury and ameliorated inflammatory responses in the lungs when infected with a SARS-CoV-2 M protein-reconstituted pseudovirus and mouse coronavirus. Taken together, these findings suggest that NLRP12 mediates the inflammatory responses during coronavirus infection.
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Affiliation(s)
- Xingyu Li
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou
| | - Guangde Zhou
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
| | - Xingzi Sun
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
| | - Siying Qu
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
| | - Hongzhi Lai
- Medical Intensive Care Unit, The Third People's Hospital of Shantou, Shantou
| | - Yongjian Wu
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
| | - Dechang Li
- Tuberculosis Prevention and Control Institution, Yuebei Second People's Hospital, Shaoguan
| | - Lei Liu
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
| | - Guoliang Zhang
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
| | - Jingwen Yang
- Qingyuan People's Hospital, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Xi Huang
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou
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3
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Stumpff JP, Kim SY, McFadden MI, Nishida A, Shirazi R, Steuerman Y, Gat-Viks I, Forero A, Nair MG, Morrison J. Pleural macrophages translocate to the lung during infection to promote improved influenza outcomes. Proc Natl Acad Sci U S A 2023; 120:e2300474120. [PMID: 38100417 PMCID: PMC10743374 DOI: 10.1073/pnas.2300474120] [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: 01/10/2023] [Accepted: 10/30/2023] [Indexed: 12/17/2023] Open
Abstract
Seasonal influenza results in 3 to 5 million cases of severe disease and 250,000 to 500,000 deaths annually. Macrophages have been implicated in both the resolution and progression of the disease, but the drivers of these outcomes are poorly understood. We probed mouse lung transcriptomic datasets using the Digital Cell Quantifier algorithm to predict immune cell subsets that correlated with mild or severe influenza A virus (IAV) infection outcomes. We identified a unique lung macrophage population that transcriptionally resembled small serosal cavity macrophages and whose presence correlated with mild disease. Until now, the study of serosal macrophage translocation in the context of viral infections has been neglected. Here, we show that pleural macrophages (PMs) migrate from the pleural cavity to the lung after infection with IAV. We found that the depletion of PMs increased morbidity and pulmonary inflammation. There were increased proinflammatory cytokines in the pleural cavity and an influx of neutrophils within the lung. Our results show that PMs are recruited to the lung during IAV infection and contribute to recovery from influenza. This study expands our knowledge of PM plasticity and identifies a source of lung macrophages independent of monocyte recruitment and local proliferation.
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Affiliation(s)
- James P. Stumpff
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA92521
| | - Sang Yong Kim
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA92521
| | - Matthew I. McFadden
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH43210
- Infectious Diseases Institute, The Ohio State University, Columbus, OH43210
| | - Andrew Nishida
- Department of Microbiology, University of Washington, Seattle, WA98109
| | - Roksana Shirazi
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA92521
| | - Yael Steuerman
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv6997801, Israel
| | - Irit Gat-Viks
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv6997801, Israel
| | - Adriana Forero
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH43210
- Infectious Diseases Institute, The Ohio State University, Columbus, OH43210
| | - Meera G. Nair
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA92521
| | - Juliet Morrison
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA92521
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Huang L, Tao Y, Wu X, Wu J, Shen M, Zheng Z. The role of NLRP12 in inflammatory diseases. Eur J Pharmacol 2023; 956:175995. [PMID: 37572944 DOI: 10.1016/j.ejphar.2023.175995] [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: 04/20/2023] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 08/14/2023]
Abstract
Nucleotide-binding leucine-rich repeat-containing receptor 12 (NLRP12), a highly conserved protein containing an N-terminal pyrin domain (PYD), a nucleotide-binding domain and a C-terminal leucine-rich repeat region, belongs to the nucleotide-binding oligomerization domain-like receptor-containing PYD (NLRP) family and is a cytoplasmic sensor that plays a negative role in inflammation. NLRP12 is involved in multiple disease processes, including formation of inflammasomes and regulation of both canonical and noncanonical inflammatory signaling pathways. NLRP12 and pathogenic infections are closely linked, and alterations in NLRP12 expression and activity are associated with inflammatory diseases. In this review, we begin with a summary of the mechanisms of negative regulation by NLRP12. We then underscore the important roles of NLRP12 in the onset and progression of inflammation, infectious disease, host defense, carcinogenesis and COVID-19. Finally, we highlight factors that influence NLRP12 activity, including synthetic and naturally derived agonists, and are regarded as potential therapeutic agents to overcome inflammatory diseases.
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Affiliation(s)
- Lili Huang
- Lihuili Hospital Affiliated to Ningbo University, Ningbo, 315100, Zhejiang, China
| | - Youli Tao
- Lihuili Hospital Affiliated to Ningbo University, Ningbo, 315100, Zhejiang, China
| | - Xiping Wu
- Lihuili Hospital Affiliated to Ningbo University, Ningbo, 315100, Zhejiang, China
| | - Jianzhang Wu
- The Eye Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
| | - Mengya Shen
- Affiliated Hospital of Jiaxing University, Jiaxing Maternity and Child Health Care Hospital in Zhejiang Province, Jiaxing, 314000, Zhejiang, China.
| | - Zhiwei Zheng
- School of Pharmacy, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
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Zhou Y, Yu S, Zhang W. NOD-like Receptor Signaling Pathway in Gastrointestinal Inflammatory Diseases and Cancers. Int J Mol Sci 2023; 24:14511. [PMID: 37833958 PMCID: PMC10572711 DOI: 10.3390/ijms241914511] [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: 08/23/2023] [Revised: 09/15/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
Nucleotide-binding and oligomerization domain (NOD)-like receptors (NLRs) are intracellular proteins with a central role in innate and adaptive immunity. As a member of pattern recognition receptors (PRRs), NLRs sense specific pathogen-associated molecular patterns, trigger numerous signaling pathways and lead to the secretion of various cytokines. In recent years, cumulative studies have revealed the significant impacts of NLRs in gastrointestinal (GI) inflammatory diseases and cancers. Deciphering the role and molecular mechanism of the NLR signaling pathways may provide new opportunities for the development of therapeutic strategies related to GI inflammatory diseases and GI cancers. This review presents the structures and signaling pathways of NLRs, summarizes the recent advances regarding NLR signaling in GI inflammatory diseases and GI cancers and describes comprehensive therapeutic strategies based on this signaling pathway.
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Affiliation(s)
- Yujie Zhou
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China; (Y.Z.); (S.Y.)
| | - Songyan Yu
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China; (Y.Z.); (S.Y.)
| | - Wenyong Zhang
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China; (Y.Z.); (S.Y.)
- Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
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6
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Bulté D, Rigamonti C, Romano A, Mortellaro A. Inflammasomes: Mechanisms of Action and Involvement in Human Diseases. Cells 2023; 12:1766. [PMID: 37443800 PMCID: PMC10340308 DOI: 10.3390/cells12131766] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Inflammasome complexes and their integral receptor proteins have essential roles in regulating the innate immune response and inflammation at the post-translational level. Yet despite their protective role, aberrant activation of inflammasome proteins and gain of function mutations in inflammasome component genes seem to contribute to the development and progression of human autoimmune and autoinflammatory diseases. In the past decade, our understanding of inflammasome biology and activation mechanisms has greatly progressed. We therefore provide an up-to-date overview of the various inflammasomes and their known mechanisms of action. In addition, we highlight the involvement of various inflammasomes and their pathogenic mechanisms in common autoinflammatory, autoimmune and neurodegenerative diseases, including atherosclerosis, rheumatoid arthritis, systemic lupus erythematosus, inflammatory bowel disease, Alzheimer's disease, Parkinson's disease, and multiple sclerosis. We conclude by speculating on the future avenues of research needed to better understand the roles of inflammasomes in health and disease.
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Affiliation(s)
- Dimitri Bulté
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy; (D.B.); (C.R.); (A.R.)
| | - Chiara Rigamonti
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy; (D.B.); (C.R.); (A.R.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Alessandro Romano
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy; (D.B.); (C.R.); (A.R.)
| | - Alessandra Mortellaro
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy; (D.B.); (C.R.); (A.R.)
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7
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Deng CH, Li TQ, Zhang W, Zhao Q, Wang Y. Targeting Inflammasome Activation in Viral Infection: A Therapeutic Solution? Viruses 2023; 15:1451. [PMID: 37515138 PMCID: PMC10384481 DOI: 10.3390/v15071451] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Inflammasome activation is exclusively involved in sensing activation of innate immunity and inflammatory response during viral infection. Accumulating evidence suggests that the manipulation of inflammasome assembly or its interaction with viral proteins are critical factors in viral pathogenesis. Results from pilot clinical trials show encouraging results of NLRP3 inflammasome suppression in reducing mortality and morbidity in SARS-CoV-2-infected patients. In this article, we summarize the up-to-date understanding of inflammasomes, including NLRP3, AIM2, NLRP1, NLRP6, and NLRC4 in various viral infections, with particular focus on RNA viruses such as SARS-CoV-2, HIV, IAV, and Zika virus and DNA viruses such as herpes simplex virus 1. We also discuss the current achievement of the mechanisms involved in viral infection-induced inflammatory response, host defense, and possible therapeutic solutions.
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Affiliation(s)
- Chuan-Han Deng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China
| | - Tian-Qi Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Av. Wai Long, Taipa, Macao 999078, China
| | - Qi Zhao
- Cancer Centre, Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau 999078, China
- MoE Frontiers Science Center for Precision Oncology, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China
| | - Ying Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China
- MoE Frontiers Science Center for Precision Oncology, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China
- Department of Pharmaceutical Sciences, Faculty of Health Science, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China
- Minister of Education Key Laboratory of Tumor Molecular Biology, Jinan University, Guangzhou 510632, China
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8
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Valadares DG, Clay OS, Chen Y, Scorza BM, Cassel SL, Sutterwala FS, Wilson ME. NLRP12-expressing dendritic cells mediate both dissemination of infection and adaptive immune responses in visceral leishmaniasis. iScience 2023; 26:106163. [PMID: 36879824 PMCID: PMC9985045 DOI: 10.1016/j.isci.2023.106163] [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: 07/07/2022] [Revised: 10/26/2022] [Accepted: 01/02/2023] [Indexed: 02/10/2023] Open
Abstract
The NLR protein NLRP12 contributes to innate immunity, but the mechanism remains elusive. Infection of Nlrp12 -/- or wild-type mice with Leishmania infantum led to aberrant parasite tropism. Parasites replicated to higher levels in livers of Nlrp12 -/- mice than in the livers of WT mice and failed to disseminate to spleens. Most retained liver parasites resided in dendritic cells (DCs), with correspondingly fewer infected DCs in spleens. Furthermore, Nlrp12 -/- DCs expressed lower CCR7 than WT DCs, failed to migrate toward CCL19 or CCL21 in chemotaxis assays, and migrated poorly to draining lymph nodes after sterile inflammation. Leishmania-infected Nlpr12 -/- DCs were significantly less effective at transporting parasites to lymph nodes than WT DCs. Consistently, adaptive immune responses were also impaired in infected Nlrp12 -/- mice. We hypothesize that Nlrp12-expressing DCs are required for efficient dissemination and immune clearance of L. infantum from the site of initial infection. This is at least partly due to the defective expression of CCR7.
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Affiliation(s)
- Diogo Garcia Valadares
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Owen Scott Clay
- Department of Pediatrics, Division of Pediatric Rheumatology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Yani Chen
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Breanna Mary Scorza
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
| | - Suzanne Louise Cassel
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Fayyaz Shiraz Sutterwala
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Mary Edythe Wilson
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
- Veterans’ Affairs Medical Center, Iowa City, IA 52246, USA
- Department of Microbiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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Abdelhamid L, Mao J, Cabana-Puig X, Zhu J, Swartwout BK, Edwards MR, Testerman JC, Michaelis JS, Allen IC, Ahmed SA, Luo XM. Nlrp12 deficiency alters gut microbiota and ameliorates Faslpr-mediated systemic autoimmunity in male mice. Front Immunol 2023; 14:1120958. [PMID: 36969209 PMCID: PMC10036793 DOI: 10.3389/fimmu.2023.1120958] [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: 12/10/2022] [Accepted: 02/28/2023] [Indexed: 03/12/2023] Open
Abstract
NLRP12 has dual roles in shaping inflammation. We hypothesized that NLRP12 would modulate myeloid cells and T cell function to control systemic autoimmunity. Contrary to our hypothesis, the deficiency of Nlrp12 in autoimmune-prone B6.Faslpr/lpr mice ameliorated autoimmunity in males but not females. Nlrp12 deficiency dampened B cell terminal differentiation, germinal center reaction, and survival of autoreactive B cells leading to decreased production of autoantibodies and reduced renal deposition of IgG and complement C3. In parallel, Nlrp12 deficiency reduced the expansion of potentially pathogenic T cells, including double-negative T cells and T follicular helper cells. Furthermore, reduced pro-inflammatory innate immunity was observed, where the gene deletion decreased in-vivo expansion of splenic macrophages and mitigated ex-vivo responses of bone marrow-derived macrophages and dendritic cells to LPS stimulation. Interestingly, Nlrp12 deficiency altered the diversity and composition of fecal microbiota in both male and female B6/lpr mice. Notably, however, Nlrp12 deficiency significantly modulated small intestinal microbiota only in male mice, suggesting that the sex differences in disease phenotype might be gut microbiota-dependent. Together, these results suggest a potential pathogenic role of NLRP12 in promoting systemic autoimmunity in males. Future studies will investigate sex-based mechanisms through which NLRP12 differentially modulates autoimmune outcomes.
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Affiliation(s)
- Leila Abdelhamid
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
- Department of Microbiology, College of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Jiangdi Mao
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Xavier Cabana-Puig
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Jing Zhu
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Brianna K. Swartwout
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Michael R. Edwards
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - James C. Testerman
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Jacquelyn S. Michaelis
- Center for Bioinformatics and Computational Biology, University of Maryland, College Park, College Park, MD, United States
| | - Irving Coy Allen
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - S. Ansar Ahmed
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
- *Correspondence: S. Ansar Ahmed, ; Xin M. Luo,
| | - Xin M. Luo
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
- *Correspondence: S. Ansar Ahmed, ; Xin M. Luo,
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10
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Zerangian N, Erabi G, Poudineh M, Monajjem K, Diyanati M, Khanlari M, Khalaji A, Allafi D, Faridzadeh A, Amali A, Alizadeh N, Salimi Y, Ghane Ezabadi S, Abdi A, Hasanabadi Z, ShojaeiBaghini M, Deravi N. Venous thromboembolism in viral diseases: A comprehensive literature review. Health Sci Rep 2023; 6:e1085. [PMID: 36778773 PMCID: PMC9900357 DOI: 10.1002/hsr2.1085] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/25/2022] [Accepted: 01/19/2023] [Indexed: 02/09/2023] Open
Abstract
Venous thromboembolism (VTE) is known to be a common respiratory and/or cardiovascular complication in hospitalized patients with viral infections. Numerous studies have proven human immunodeficiency virus infection to be a prothrombotic condition. An elevated VTE risk has been observed in critically ill H1N1 influenza patients. VTE risk is remarkably higher in patients infected with the Hepatitis C virus in contrast to uninfected subjects. The elevation of D-dimer levels supported the association between Chikungunya and the Zika virus and the rise of clinical VTE risk. Varicella-zoster virus is a risk factor for both cellulitis and the consequent invasive bacterial disease which may take part in thrombotic initiation. Eventually, hospitalized patients infected with the coronavirus disease of 2019 (COVID-19), the cause of the ongoing worldwide pandemic, could mainly suffer from an anomalous risk of coagulation activation with enhanced venous thrombosis events and poor quality clinical course. Although the risk of VTE in nonhospitalized COVID-19 patients is not known yet, there are a large number of guidelines and studies on thromboprophylaxis administration for COVID-19 cases. This study aims to take a detailed look at the effect of viral diseases on VTE, the epidemiology of VTE in viral diseases, and the diagnosis and treatment of VTE.
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Affiliation(s)
- Nasibeh Zerangian
- Health Education and Health Promotion, Department of Health Education and Health Promotion, School of HealthMashhad University of Medical SciencesMashhadIran
| | - Gisou Erabi
- Student Research CommitteeUrmia University of Medical SciencesUrmiaIran
| | | | - Kosar Monajjem
- Student Research CommitteeTabriz University of Medical SciencesTabrizIran
| | - Maryam Diyanati
- Student Research CommitteeRafsanjan University of Medical SciencesRafsanjanIran
| | - Maryam Khanlari
- Student Research CommitteeTabriz University of Medical SciencesTabrizIran
| | | | - Diba Allafi
- Student Research CommitteeUrmia University of Medical SciencesUrmiaIran
| | - Arezoo Faridzadeh
- Department of Immunology and Allergy, School of MedicineMashhad University of Medical SciencesMashhadIran,Immunology Research CenterMashhad University of Medical SciencesMashhadIran
| | - Arian Amali
- Student Research Committee, Paramedical DepartmentIslamic Azad University, Mashhad BranchMashhadIran
| | - Nilufar Alizadeh
- Doctor of Medicine (MD), School of MedicineIran University of Medical SciencesTehranIran
| | - Yasaman Salimi
- Student Research CommitteeKermanshah University of Medical SciencesKermanshahIran
| | - Sajjad Ghane Ezabadi
- Student's Scientific Research Center, School of MedicineTehran University of Medical SciencesTehranIran
| | - Amir Abdi
- Student Research Committee, School of Medicine, Tehran Medical SciencesIslamic Azad UniversityTehranIran
| | - Zahra Hasanabadi
- Doctor of Medicine (MD), School of MedicineQazvin University of Medical ScienceQazvinIran
| | - Mahdie ShojaeiBaghini
- Medical Informatics Research Center, Institute for Futures Studies in HealthKerman University of Medical SciencesKermanIran
| | - Niloofar Deravi
- Student Research Committee, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
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11
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Gupta S, Cassel SL, Sutterwala FS. Inflammasome-Independent Roles of NLR and ALR Family Members. Methods Mol Biol 2023; 2696:29-45. [PMID: 37578713 DOI: 10.1007/978-1-0716-3350-2_2] [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] [Indexed: 08/15/2023]
Abstract
Pattern recognition receptors, including members of the NLR and ALR families, are essential for recognition of both pathogen- and host-derived danger signals. Several members of these families, including NLRP1, NLRP3, NLRC4, and AIM2, are capable of forming multiprotein complexes, called inflammasomes, that result in the activation of pro-inflammatory caspase-1. However, in addition to the formation of inflammasomes, a number of these family members exert inflammasome-independent functions. Here, we will discuss inflammasome-independent functions of NLRC4, NLRP12, and AIM2 and examine their roles in regulating innate and adaptive immune processes.
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Affiliation(s)
- Suman Gupta
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Suzanne L Cassel
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Fayyaz S Sutterwala
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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12
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The Potential Importance of CXCL1 in the Physiological State and in Noncancer Diseases of the Cardiovascular System, Respiratory System and Skin. Int J Mol Sci 2022; 24:ijms24010205. [PMID: 36613652 PMCID: PMC9820720 DOI: 10.3390/ijms24010205] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
In this paper, we present a literature review of the role of CXC motif chemokine ligand 1 (CXCL1) in physiology, and in selected major non-cancer diseases of the cardiovascular system, respiratory system and skin. CXCL1, a cytokine belonging to the CXC sub-family of chemokines with CXC motif chemokine receptor 2 (CXCR2) as its main receptor, causes the migration and infiltration of neutrophils to the sites of high expression. This implicates CXCL1 in many adverse conditions associated with inflammation and the accumulation of neutrophils. The aim of this study was to describe the significance of CXCL1 in selected diseases of the cardiovascular system (atherosclerosis, atrial fibrillation, chronic ischemic heart disease, hypertension, sepsis including sepsis-associated encephalopathy and sepsis-associated acute kidney injury), the respiratory system (asthma, chronic obstructive pulmonary disease (COPD), chronic rhinosinusitis, coronavirus disease 2019 (COVID-19), influenza, lung transplantation and ischemic-reperfusion injury and tuberculosis) and the skin (wound healing, psoriasis, sunburn and xeroderma pigmentosum). Additionally, the significance of CXCL1 is described in vascular physiology, such as the effects of CXCL1 on angiogenesis and arteriogenesis.
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13
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Wallace HL, Russell RS. Promiscuous Inflammasomes: The False Dichotomy of RNA/DNA Virus-Induced Inflammasome Activation and Pyroptosis. Viruses 2022; 14:2113. [PMID: 36298668 PMCID: PMC9609106 DOI: 10.3390/v14102113] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 07/30/2023] Open
Abstract
It is well-known that viruses activate various inflammasomes, which can initiate the programmed cell death pathway known as pyroptosis, subsequently leading to cell lysis and release of inflammatory cytokines IL-1β and IL-18. This pathway can be triggered by various sensors, including, but not limited to, NLRP3, AIM2, IFI16, RIG-I, and NLRC4. Many viruses are known either to activate or inhibit inflammasomes as a part of the innate immune response or as a mechanism of pathogenesis. Early research in the field of virus-induced pyroptosis suggested a dichotomy, with RNA viruses activating the NLRP3 inflammasome and DNA viruses activating the AIM2 inflammasome. More recent research has shown that this dichotomy may not be as distinct as once thought. It seems many viruses activate multiple inflammasome sensors. Here, we detail which viruses fit the dichotomy as well as many that appear to defy this clearly false dichotomy. It seems likely that most, if not all, viruses activate multiple inflammasome sensors, and future research should focus on expanding our understanding of inflammasome activation in a variety of tissue types as well as virus activation of multiple inflammasomes, challenging biases that stemmed from early literature in this field. Here, we review primarily research performed on human viruses but also include details regarding animal viruses whenever possible.
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14
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Liu Y, Song R, Zhao L, Lu Z, Li Y, Zhan X, Lu F, Yang J, Niu Y, Cao X. m 6A demethylase ALKBH5 is required for antibacterial innate defense by intrinsic motivation of neutrophil migration. Signal Transduct Target Ther 2022; 7:194. [PMID: 35764614 PMCID: PMC9240034 DOI: 10.1038/s41392-022-01020-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 12/29/2022] Open
Abstract
Neutrophil migration into the site of infection is necessary for antibacterial innate defense, whereas impaired neutrophil migration may result in excessive inflammation and even sepsis. The neutrophil migration directed by extracellular signals such as chemokines has been extensively studied, yet the intrinsic mechanism for determining neutrophil ability to migrate needs further investigation. N6-methyladenosine (m6A) RNA modification is important in immunity and inflammation, and our preliminary data indicate downregulation of RNA m6A demethylase alkB homolog 5 (ALKBH5) in neutrophils during bacterial infection. Whether m6A modification and ALKBH5 might intrinsically modulate neutrophil innate response remain unknown. Here we report that ALKBH5 is required for antibacterial innate defense by enhancing intrinsic ability of neutrophil migration. We found that deficiency of ALKBH5 increased mortality of mice with polymicrobial sepsis induced by cecal ligation and puncture (CLP), and Alkbh5-deficient CLP mice exhibited higher bacterial burden and massive proinflammatory cytokine production in the peritoneal cavity and blood because of less neutrophil migration. Alkbh5-deficient neutrophils had lower CXCR2 expression, thus exhibiting impaired migration toward chemokine CXCL2. Mechanistically, ALKBH5-mediated m6A demethylation empowered neutrophils with high migration capability through altering the RNA decay, consequently regulating protein expression of its targets, neutrophil migration-related molecules, including increased expression of neutrophil migration-promoting CXCR2 and NLRP12, but decreased expression of neutrophil migration-suppressive PTGER4, TNC, and WNK1. Our findings reveal a previously unknown role of ALKBH5 in imprinting migration-promoting transcriptome signatures in neutrophils and intrinsically promoting neutrophil migration for antibacterial defense, highlighting the potential application of targeting neutrophil m6A modification in controlling bacterial infections.
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Affiliation(s)
- Yang Liu
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China. .,Frontier Research Center for Cell Response, Institute of Immunology, College of Life Sciences, Nankai University, 300071, Tianjin, China.
| | - Renjie Song
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Lu Zhao
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Zhike Lu
- School of Life Sciences, Westlake University, 310024, Hangzhou, China
| | - Yini Li
- School of Life Sciences, Westlake University, 310024, Hangzhou, China
| | - Xinyi Zhan
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Fengjiao Lu
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Jiang Yang
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Yamei Niu
- Department of Pathology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Xuetao Cao
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China. .,Frontier Research Center for Cell Response, Institute of Immunology, College of Life Sciences, Nankai University, 300071, Tianjin, China.
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15
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Borst C, Symmank D, Drach M, Weninger W. Cutaneous signs and mechanisms of inflammasomopathies. Ann Rheum Dis 2022; 81:454-465. [PMID: 35039323 DOI: 10.1136/annrheumdis-2021-220977] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/20/2021] [Indexed: 11/03/2022]
Abstract
The emerging group of autoinflammatory diseases (AIDs) is caused by a dysregulation of the innate immune system while lacking the typical footprint of adaptive immunity. A prominent subgroup of AIDs are inflammasomopathies, which are characterised by periodic flares of cutaneous signs as well as systemic organ involvement and fever. The range of possible skin lesions is vast, ranging from urticarial, erysipelas-like and pustular rashes to erythematous patches, violaceous plaques and eventual necrosis and ulceration. This review provides a structured overview of the pathogenesis and the clinical picture with a focus on dermatological aspects of inflammasomopathies. Current treatment options for these conditions are also discussed.
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Affiliation(s)
- Carina Borst
- Department of Dermatology, Medical University of Vienna, Wien, Austria
| | - Dörte Symmank
- Department of Dermatology, Medical University of Vienna, Wien, Austria
| | - Mathias Drach
- Department of Dermatology, Medical University of Vienna, Wien, Austria
| | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Wien, Austria
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16
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Li X, Dong Z, Liu Y, Song W, Pu J, Jiang G, Wu Y, Liu L, Huang X. A Novel Role for the Regulatory Nod-Like Receptor NLRP12 in Anti-Dengue Virus Response. Front Immunol 2021; 12:744880. [PMID: 34956178 PMCID: PMC8695442 DOI: 10.3389/fimmu.2021.744880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/22/2021] [Indexed: 11/14/2022] Open
Abstract
Dengue Virus (DENV) infection can cause severe illness such as highly fatality dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). Innate immune activation by Nod-like receptors (NLRs) is a critical part of host defense against viral infection. Here, we revealed a key mechanism of NLRP12-mediated regulation in DENV infection. Firstly, NLRP12 expression was inhibited in human macrophage following DENV or other flaviviruses (JEV, YFV, ZIKV) infection. Positive regulatory domain 1 (PRDM1) was induced by DENV or poly(I:C) and suppressed NLRP12 expression, which was dependent on TBK-1/IRF3 and NF-κB signaling pathways. Moreover, NLRP12 inhibited DENV and other flaviviruses (JEV, YFV, ZIKV) replication, which relied on the well-conserved nucleotide binding structures of its NACHT domain. Furthermore, NLRP12 could interact with heat shock protein 90 (HSP90) dependent on its Walker A and Walker B sites. In addition, NLRP12 enhanced the production of type I IFNs (IFN-α/β) and interferon-stimulated genes (ISGs), including IFITM3, TRAIL and Viperin. Inhibition of HSP90 with 17-DMAG impaired the upregulation of type I IFNs and ISGs induced by NLRP12. Taken together, we demonstrated a novel mechanism that NLRP12 exerted anti-viral properties in DENV and other flaviviruses (JEV, YFV, ZIKV) infection, which brings up a potential target for the treatment of DENV infection.
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Affiliation(s)
- Xingyu Li
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China.,Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zhuo Dong
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Yan Liu
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Weifeng Song
- Department of Pharmacy, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Jieying Pu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Guanmin Jiang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Yongjian Wu
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China.,Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Department of Pharmacy, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Lei Liu
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Xi Huang
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China.,Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen, China
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17
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Ma Y, Zhang Y, Zhu L. Role of neutrophils in acute viral infection. IMMUNITY INFLAMMATION AND DISEASE 2021; 9:1186-1196. [PMID: 34472718 PMCID: PMC8589350 DOI: 10.1002/iid3.500] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/23/2021] [Accepted: 07/22/2021] [Indexed: 12/13/2022]
Abstract
Neutrophils play multiple roles in acute viral infections. They restrict viral replication and diffusion through phagocytosis, degranulation, respiratory burst, secretion of cytokines, and the release of neutrophil extracellular traps, as well as, activate the adaptive immune response. However, the overactivation of neutrophils may cause tissue damage and lead to poor outcomes. Additionally, some characteristics and functions of neutrophils, such as cell number, lifespan, and antiviral capability, can be influenced while eliminating viruses. This review provides a general description of the protective and pathological roles of neutrophils in acute viral infection.
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Affiliation(s)
- Yuan Ma
- Institute of Infectious Diseases, Peking University Ditan Teaching Hospital, Beijing, China
| | - Yue Zhang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Liuluan Zhu
- Institute of Infectious Diseases, Peking University Ditan Teaching Hospital, Beijing, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
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18
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Mackman N, Antoniak S, Wolberg AS, Kasthuri R, Key NS. Coagulation Abnormalities and Thrombosis in Patients Infected With SARS-CoV-2 and Other Pandemic Viruses. Arterioscler Thromb Vasc Biol 2020; 40:2033-2044. [PMID: 32657623 PMCID: PMC7447001 DOI: 10.1161/atvbaha.120.314514] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023]
Abstract
The world is amid a pandemic caused by severe acute respiratory syndrome-coronavirus 2. Severe acute respiratory syndrome-coronavirus causes serious respiratory tract infections that can lead to viral pneumonia, acute respiratory distress syndrome, and death. Some patients with coronavirus disease 2019 (COVID-19) have an activated coagulation system characterized by elevated plasma levels of d-dimer-a biomarker of fibrin degradation. Importantly, high levels of D-dimer on hospital admission are associated with increased risk of mortality. Venous thromboembolism is more common than arterial thromboembolism in hospitalized COVID-19 patients. Pulmonary thrombosis and microvascular thrombosis are observed in autopsy studies, and this may contribute to the severe hypoxia observed in COVID-19 patients. It is likely that multiple systems contribute to thrombosis in COVID-19 patients, such as activation of coagulation, platelet activation, hypofibrinolysis, endothelial cell dysfunction, inflammation, neutrophil extracellular traps, and complement. Targeting these different pathways may reduce thrombosis and improve lung function in COVID-19 patients.
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Affiliation(s)
- Nigel Mackman
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Division of Hematology, Department of Medicine (N.M., R.K., N.S.K.), University of North Carolina at Chapel Hill
| | - Silvio Antoniak
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Department of Pathology and Laboratory Medicine (S.A., A.S.W.), University of North Carolina at Chapel Hill
| | - Alisa S. Wolberg
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Department of Pathology and Laboratory Medicine (S.A., A.S.W.), University of North Carolina at Chapel Hill
| | - Raj Kasthuri
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Division of Hematology, Department of Medicine (N.M., R.K., N.S.K.), University of North Carolina at Chapel Hill
| | - Nigel S. Key
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Division of Hematology, Department of Medicine (N.M., R.K., N.S.K.), University of North Carolina at Chapel Hill
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19
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Laudermilk LT, Tovar A, Homstad AK, Thomas JM, McFadden KM, Tune MK, Cowley DO, Mock JR, Ideraabdullah F, Kelada SNP. Baseline and innate immune response characterization of a Zfp30 knockout mouse strain. Mamm Genome 2020; 31:205-214. [PMID: 32860515 DOI: 10.1007/s00335-020-09847-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/17/2020] [Indexed: 12/01/2022]
Abstract
Airway neutrophilia is correlated with disease severity in a number of chronic and acute pulmonary diseases, and dysregulation of neutrophil chemotaxis can lead to host tissue damage. The gene Zfp30 was previously identified as a candidate regulator of neutrophil recruitment to the lungs and secretion of CXCL1, a potent neutrophil chemokine, in a genome-wide mapping study using the Collaborative Cross. ZFP30 is a putative transcriptional repressor with a KRAB domain capable of inducing heterochromatin formation. Using a CRISPR-mediated knockout mouse model, we investigated the role that Zfp30 plays in recruitment of neutrophils to the lung using models of allergic airway disease and acute lung injury. We found that the Zfp30 null allele did not affect CXCL1 secretion or neutrophil recruitment to the lungs in response to various innate immune stimuli. Intriguingly, despite the lack of neutrophil phenotype, we found there was a significant reduction in the proportion of live Zfp30 homozygous female mutant mice produced from heterozygous matings. This deviation from the expected Mendelian ratios implicates Zfp30 in fertility or embryonic development. Overall, our results indicate that Zfp30 is an essential gene but does not influence neutrophilic inflammation in this particular knockout model.
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Affiliation(s)
- Lucas T Laudermilk
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA.,Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA
| | - Adelaide Tovar
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA.,Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA
| | - Alison K Homstad
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA.,Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA
| | - Joseph M Thomas
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA
| | - Kathryn M McFadden
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA
| | - Miriya K Tune
- Marsico Lung Institute, University of North Carolina, Chapel Hill, NC, USA
| | - Dale O Cowley
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA.,Animal Models Core Facility, University of North Carolina, Chapel Hill, NC, USA
| | - Jason R Mock
- Marsico Lung Institute, University of North Carolina, Chapel Hill, NC, USA
| | - Folami Ideraabdullah
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA.,Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA.,Department of Nutrition, University of North Carolina, Chapel Hill, NC, USA
| | - Samir N P Kelada
- Department of Genetics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA. .,Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, USA. .,Marsico Lung Institute, University of North Carolina, Chapel Hill, NC, USA.
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20
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Tuladhar S, Kanneganti TD. NLRP12 in innate immunity and inflammation. Mol Aspects Med 2020; 76:100887. [PMID: 32838963 DOI: 10.1016/j.mam.2020.100887] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 06/01/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023]
Abstract
Nucleotide-binding leucine-rich repeat-containing proteins, or NOD-like receptors (NLRs), are intracellular innate immune sensors that can regulate several signaling pathways, including MyD88- and TRIF-dependent pathways. In addition to these regulatory roles, some NLRs can assemble into multimeric protein complexes known as inflammasomes. NLRP12 is a member of the NLR family that contains an N-terminal pyrin domain, a central nucleotide-binding domain, and a C-terminal leucine-rich repeat. It has been shown to play a role in forming an inflammasome in response to specific infections, and it can also function as a regulator of inflammatory signaling. During Yersinia pestis or Plasmodium chabaudi infection, NLRP12 induces the release of the inflammasome-dependent cytokines IL-1β and IL-18. These NLRP12-dependent cytokines confer protection against severe infections caused by these pathogens. Conversely, during infection with Salmonella enterica serovar Typhimurium, vesicular stomatitis virus, Klebsiella pneumoniae, or Mycobacterium tuberculosis, and in colonic tumorigenesis, NLRP12 acts as a negative regulator of the NFκB and MAPK signaling pathways. NLRP12 also negatively regulates canonical and non-canonical signaling in T cells and causes exacerbated autoimmune diseases. Furthermore, NLRP12 acts as a central component in maintaining intestinal inflammation and gut homeostasis. Therefore, the ability of NLRP12 to function as an inflammasome or as a negative regulator is context-dependent. In this review, we provide an overview of the NLR family members and summarize recent insights into the roles of NLRP12 as an inflammasome and as a negative regulator.
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Affiliation(s)
- Shraddha Tuladhar
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
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21
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Zhang Y, Okamoto CT. Nucleotide binding domain and leucine-rich repeat pyrin domain-containing protein 12: characterization of its binding to hematopoietic cell kinase. Int J Biol Sci 2020; 16:1507-1525. [PMID: 32226298 PMCID: PMC7097926 DOI: 10.7150/ijbs.41798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/13/2020] [Indexed: 12/14/2022] Open
Abstract
Protein-protein interactions are key to define the function of nucleotide binding domain (NBD) and leucine-rich repeat (LRR) family, pyrin domain (PYD)-containing protein 12 (NLRP12). cDNA encoding the human PYD + NBD of NLRP12 was used as bait in a yeast two-hybrid screen with a human leukocyte cDNA library as prey. Hematopoiesis cell kinase (HCK), a member of the c-SRC family of non-receptor tyrosine kinases, was among the top hits. The C-terminal 40 amino acids of HCK selectively bound to NLRP12's PYD + NBD, but not to that of NLRP3 and NLRP8. Amino acids F503, I506, Q507, L510, and D511 of HCK are critical for the binding of HCK's C-terminal 40 amino acids to NLRP12's PYD + NBD. Additionally, the C-terminal 30 amino acids of HCK are sufficient to bind to NLRP12's PYD + NBD, but not to its PYD alone nor to its NBD alone. In cell lines that express HCK endogenously, it was co- immunoprecipitated with stably expressed exogenous NLRP12. Also, NLRP12 co-immunoprecipitated and co-localized with HCK when both were overexpressed in 293T cells. In addition, in this overexpression system, steady-state NLRP12 protein expression levels significantly decreased when HCK was co-expressed. Bioinformatic analysis showed that HCK mRNA co-occurred with NLRP12 mRNA, but not with other NLRP mRNAs, in blood and marrow samples from acute myeloid leukemia (AML) patients. The mRNA of NLRP12 is also co-expressed with HCK in AML patient samples, and the levels of mRNA expression of each are correlated. Together these data suggest that NLRP12, through its binding to HCK, may have an effect on the pathogenesis of AML.
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Affiliation(s)
- Yue Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, USA 90089-9121
| | - Curtis T Okamoto
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, USA 90089-9121
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22
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Coulon PG, Dhanushkodi N, Prakash S, Srivastava R, Roy S, Alomari NI, Nguyen AM, Warsi WR, Ye C, Carlos-Cruz EA, Mai UT, Cruel AC, Ekmekciyan KM, Pearlman E, BenMohamed L. NLRP3, NLRP12, and IFI16 Inflammasomes Induction and Caspase-1 Activation Triggered by Virulent HSV-1 Strains Are Associated With Severe Corneal Inflammatory Herpetic Disease. Front Immunol 2019; 10:1631. [PMID: 31367214 PMCID: PMC6644090 DOI: 10.3389/fimmu.2019.01631] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/01/2019] [Indexed: 12/15/2022] Open
Abstract
The crosstalk between the host's inflammasome system and the invading virulent/less-virulent viruses determines the outcome of the ensuing inflammatory response. An appropriate activation of inflammasomes triggers antiviral inflammatory responses that clear the virus and heal the inflamed tissue. However, an aberrant activation of inflammasomes can result in a harmful and overwhelming inflammation that could damage the infected tissue. The underlying host's immune mechanisms and the viral virulent factors that impact severe clinical inflammatory disease remain to be fully elucidated. In this study, we used herpes simplex virus type 1 (HSV-1), the causative agent of corneal inflammatory herpetic disease, as a model pathogen to determine: (i) Whether and how the virulence of a virus affects the type and the activation level of the inflammasomes; and (ii) How triggering specific inflammasomes translates into protective or damaging inflammatory response. We showed that, in contrast to the less-virulent HSV-1 strains (RE, F, KOS, and KOS63), corneal infection of B6 mice with the virulent HSV-1 strains (McKrae, 17 or KOS79): (i) Induced simultaneous expression of the NLRP3, NLRP12, and IFI16 inflammasomes; (ii) Increased production of the biologically active Caspase-1 and pro-inflammatory cytokines IL-1β and IL-18; (iii) Heightened recruitment into the inflamed cornea of CD45highLy6C+Ly6G-F4/80+CD11b+CD11c- inflammatory monocytes and CD45highCD11b+F4/80-Ly6GhiLy6Cmed neutrophils; and (iv) This intensified inflammatory response was associated with a severe corneal herpetic disease, irrespective of the level of virus replication in the cornea. Similarly, in vitro infection of human corneal epithelial cells and human monocytic THP-1 cells with the virulent HSV-1 strains triggered a synchronized early expression of NLRP3, NLRP12 and IFI16, 2 h post-infection, associated with formation of single and dense specks of the adapter molecule ASC in HSV(+) cells, but not in the neighboring bystander HSV(-) cells. This was associated with increased cleavages of Caspase-1, IL-1β, and IL-18. These findings suggest a previously unappreciated role of viral virulence in a synchronized early induction of the NLRP3, NLRP12, and IFI16 inflammasomes that lead to a damaging inflammatory response. A potential role of common virus virulent factors that stimulate this harmful inflammatory corneal disease is currently under investigation.
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Affiliation(s)
- Pierre-Gregoire Coulon
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Nisha Dhanushkodi
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Swayam Prakash
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Ruchi Srivastava
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Soumyabrata Roy
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Nuha I. Alomari
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Angela M. Nguyen
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Wasay R. Warsi
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Caitlin Ye
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Edgar A. Carlos-Cruz
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Uyen T. Mai
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Audrey C. Cruel
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Keysi M. Ekmekciyan
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
| | - Eric Pearlman
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
- School of Medicine, Institute for Immunology, University of California, Irvine, Irvine, CA, United States
| | - Lbachir BenMohamed
- Laboratory of Cellular and Molecular Immunology, School of Medicine, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States
- School of Medicine, Institute for Immunology, University of California, Irvine, Irvine, CA, United States
- Department of Molecular Biology and Biochemistry, School of Medicine, University of California, Irvine, Irvine, CA, United States
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23
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Hornick EE, Dagvadorj J, Zacharias ZR, Miller AM, Langlois RA, Chen P, Legge KL, Bishop GA, Sutterwala FS, Cassel SL. Dendritic cell NLRC4 regulates influenza A virus-specific CD4 T cell responses through FasL expression. J Clin Invest 2019; 129:2888-2897. [PMID: 31038471 DOI: 10.1172/jci124937] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Influenza A virus (IAV)-specific T cell responses are important correlates of protection during primary and subsequent infections. Generation and maintenance of robust IAV-specific T cell responses relies on T cell interactions with dendritic cells (DCs). In this study, we explore the role of nucleotide-binding domain leucine-rich repeat containing receptor family member NLRC4 in modulating the DC phenotype during IAV infection. Nlrc4-/- mice had worsened survival and increased viral titers during infection, normal innate immune cell recruitment and IAV-specific CD8 T cell responses, but severely blunted IAV-specific CD4 T cell responses compared to wild-type mice. The defect in the pulmonary IAV-specific CD4 T cell response was not a result of defective priming or migration of these cells in Nlrc4-/- mice but was instead due to an increase in FasL+ DCs, resulting in IAV-specific CD4 T cell death. Together, our data support a novel role for NLRC4 in regulating the phenotype of lung DCs during a respiratory viral infection, and thereby influencing the magnitude of protective T cell responses.
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Affiliation(s)
- Emma E Hornick
- Interdisciplinary Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Jargalsaikhan Dagvadorj
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Zeb R Zacharias
- Interdisciplinary Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Ann M Miller
- Department of Surgery, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Ryan A Langlois
- Center for Immunology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Peter Chen
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Kevin L Legge
- Interdisciplinary Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Gail A Bishop
- Interdisciplinary Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Veterans Affairs Medical Center, Iowa City, Iowa, USA
| | - Fayyaz S Sutterwala
- Interdisciplinary Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Suzanne L Cassel
- Interdisciplinary Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
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24
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NLRP12 Regulates Anti-viral RIG-I Activation via Interaction with TRIM25. Cell Host Microbe 2019; 25:602-616.e7. [PMID: 30902577 DOI: 10.1016/j.chom.2019.02.013] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 08/12/2018] [Accepted: 01/15/2019] [Indexed: 02/06/2023]
Abstract
Establishing the balance between positive and negative innate immune mechanisms is crucial for maintaining homeostasis. Here we uncover the regulatory crosstalk between two previously unlinked innate immune receptor families: RIG-I, an anti-viral cytosolic receptor activated type I interferon production, and NLR (nucleotide-binding domain, leucine repeat domain-containing protein). We show that NLRP12 dampens RIG-I-mediated immune signaling against RNA viruses by controlling RIG-I's association with its adaptor MAVS. The nucleotide-binding domain of NLRP12 interacts with the ubiquitin ligase TRIM25 to prevent TRIM25-mediated, Lys63-linked ubiquitination and activation of RIG-I. NLRP12 also enhances RNF125-mediated, Lys48-linked degradative ubiquitination of RIG-I. Vesicular stomatitis virus (VSV) infection downregulates NLRP12 expression to allow RIG-I activation. Myeloid-cell-specific Nlrp12-deficient mice display a heightened interferon and TNF response and are more resistant to VSV infection. These results indicate that NLRP12 functions as a checkpoint for anti-viral RIG-I activation.
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25
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Stegelmeier AA, van Vloten JP, Mould RC, Klafuric EM, Minott JA, Wootton SK, Bridle BW, Karimi K. Myeloid Cells during Viral Infections and Inflammation. Viruses 2019; 11:E168. [PMID: 30791481 PMCID: PMC6410039 DOI: 10.3390/v11020168] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/15/2019] [Accepted: 02/16/2019] [Indexed: 12/11/2022] Open
Abstract
Myeloid cells represent a diverse range of innate leukocytes that are crucial for mounting successful immune responses against viruses. These cells are responsible for detecting pathogen-associated molecular patterns, thereby initiating a signaling cascade that results in the production of cytokines such as interferons to mitigate infections. The aim of this review is to outline recent advances in our knowledge of the roles that neutrophils and inflammatory monocytes play in initiating and coordinating host responses against viral infections. A focus is placed on myeloid cell development, trafficking and antiviral mechanisms. Although known for promoting inflammation, there is a growing body of literature which demonstrates that myeloid cells can also play critical regulatory or immunosuppressive roles, especially following the elimination of viruses. Additionally, the ability of myeloid cells to control other innate and adaptive leukocytes during viral infections situates these cells as key, yet under-appreciated mediators of pathogenic inflammation that can sometimes trigger cytokine storms. The information presented here should assist researchers in integrating myeloid cell biology into the design of novel and more effective virus-targeted therapies.
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Affiliation(s)
- Ashley A Stegelmeier
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Jacob P van Vloten
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Robert C Mould
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Elaine M Klafuric
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Jessica A Minott
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Sarah K Wootton
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Byram W Bridle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Khalil Karimi
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
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26
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Eisfeld AJ, Gasper DJ, Suresh M, Kawaoka Y. C57BL/6J and C57BL/6NJ Mice Are Differentially Susceptible to Inflammation-Associated Disease Caused by Influenza A Virus. Front Microbiol 2019; 9:3307. [PMID: 30713529 PMCID: PMC6346684 DOI: 10.3389/fmicb.2018.03307] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/19/2018] [Indexed: 01/01/2023] Open
Abstract
Influenza viruses cause seasonal epidemics and sporadic pandemics, and are a major burden on human health. To develop better countermeasures and improve influenza disease outcomes, a clearer understanding of influenza pathogenesis is necessary. Host genetic factors have emerged as potential regulators of human influenza disease susceptibility, and in the mouse model, genetic background has been clearly linked to influenza pathogenicity. Here, we show that C57BL/6J mice are significantly more susceptible to disease caused by a 2009 pandemic H1N1 virus, an H7N9 virus, and a highly pathogenic H5N1 influenza virus compared to the closely related substrain, C57BL/6NJ. Mechanistically, influenza virus infection in C57BL/6J mice results in earlier presentation of edema, increased immune cell infiltration, higher levels of inflammatory cytokines, greater tissue damage, and delayed activation of regenerative processes in infected lung tissues compared to C57BL/6NJ mice. These differences are not dependent on virus replication levels. Six genes with known coding region differences between C57BL/6J and C57BL/6NJ strains exhibit increased transcript levels in influenza virus-infected mouse lungs, suggesting potential contributions to regulation of disease susceptibility. This work uncovers a previously unappreciated difference in disease susceptibility between the closely related C57BL/6J and C57BL/6NJ mice, which may be exploited in future studies to identify host factors and/or specific genetic elements that regulate host-dependent inflammatory mechanisms involved in influenza virus pathogenicity.
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Affiliation(s)
- Amie J Eisfeld
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - David J Gasper
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - M Suresh
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - Yoshihiro Kawaoka
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States.,Division of Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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