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Michels EHA, Appelman B, de Brabander J, van Amstel RBE, van Linge CCA, Chouchane O, Reijnders TDY, Schuurman AR, Sulzer TAL, Klarenbeek AM, Douma RA, Bos LDJ, Wiersinga WJ, Peters-Sengers H, van der Poll T. Host Response Changes and Their Association with Mortality in COVID-19 Patients with Lymphopenia. Am J Respir Crit Care Med 2024; 209:402-416. [PMID: 37948687 PMCID: PMC10878379 DOI: 10.1164/rccm.202305-0890oc] [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: 05/23/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023] Open
Abstract
Rationale: Lymphopenia in coronavirus disease (COVID-19) is associated with increased mortality. Objectives: To explore the association between lymphopenia, host response aberrations, and mortality in patients with lymphopenic COVID-19. Methods: We determined 43 plasma biomarkers reflective of four pathophysiological domains: endothelial cell and coagulation activation, inflammation and organ damage, cytokine release, and chemokine release. We explored if decreased concentrations of lymphocyte-derived proteins in patients with lymphopenia were associated with an increase in mortality. We sought to identify host response phenotypes in patients with lymphopenia by cluster analysis of plasma biomarkers. Measurements and Main Results: A total of 439 general ward patients with COVID-19 were stratified by baseline lymphocyte counts: normal (>1.0 × 109/L; n = 167), mild lymphopenia (>0.5 to ⩽1.0 × 109/L; n = 194), and severe lymphopenia (⩽0.5 × 109/L; n = 78). Lymphopenia was associated with alterations in each host response domain. Lymphopenia was associated with increased mortality. Moreover, in patients with lymphopenia (n = 272), decreased concentrations of several lymphocyte-derived proteins (e.g., CCL5, IL-4, IL-13, IL-17A) were associated with an increase in mortality (at P < 0.01 or stronger significance levels). A cluster analysis revealed three host response phenotypes in patients with lymphopenia: "hyporesponsive" (23.2%), "hypercytokinemic" (36.4%), and "inflammatory-injurious" (40.4%), with substantially differing mortality rates of 9.5%, 5.1%, and 26.4%, respectively. A 10-biomarker model accurately predicted these host response phenotypes in an external cohort with similar mortality distribution. The inflammatory-injurious phenotype showed a remarkable combination of relatively high inflammation and organ damage markers with high antiinflammatory cytokine levels yet low proinflammatory cytokine levels. Conclusions: Lymphopenia in COVID-19 signifies a heterogenous group of patients with distinct host response features. Specific host responses contribute to lymphopenia-associated mortality in COVID-19, including reduced CCL5 levels.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Renée A. Douma
- Department of Internal Medicine, Flevo Hospital, Almere, the Netherlands; and
| | | | - W. Joost Wiersinga
- Center for Experimental and Molecular Medicine
- Division of Infectious Diseases, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
| | - Hessel Peters-Sengers
- Center for Experimental and Molecular Medicine
- Department of Epidemiology and Data Science, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Tom van der Poll
- Center for Experimental and Molecular Medicine
- Division of Infectious Diseases, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
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2
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Lin YJ, Wang LC, Tsai HP, Chi CY, Chang CP, Chen SH, Wang SM. Antiviral and immunoregulatory effects of curcumin on coxsackievirus B3-infected hepatitis. Virus Res 2023; 336:199203. [PMID: 37625648 PMCID: PMC10485155 DOI: 10.1016/j.virusres.2023.199203] [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: 05/19/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
Fulminant hepatitis is a life-threatening complication of coxsackievirus B (CVB) 3 infections. The condition may deteriorate to disseminated intravascular coagulopathy with markedly increased liver enzymes, inflammatory cytokines, and chemokines, which significantly induce local and systemic inflammation. Curcumin exhibits anti-inflammatory and antiviral characteristics in inflammatory and infectious diseases. Here we determined effects of curcumin on viral replications, cytokine and chemokine expressions, and liver damage in CVB3-infected Huh-7 cells. The mouse-adapted CVB3 strain was used to investigate the antiviral and anti-inflammatory effects of curcumin on CVB3-induced hepatitis in a mouse model. In vitro studies showed that curcumin reduced viral protein and titer levels and increased cell viability. Curcumin enhanced the heme oxygenase-1 (HO-1) protein level and decreased the levels of cleaved caspase-3 protein and mRNA of gene encoding C-X-C motif chemokine 10 in infected cells. In vivo studies showed that curcumin improved the survival rate and clinical scores in mice and reduced the viral titer in the liver during CVB3 infection. Moreover, the HO-1 levels were increased, and the cleaved caspase-3 levels were diminished in the CVB3-infected liver. Curcumin reduced the levels of interferon (IFN)-γ and monokine induced by IFN-γ in liver and levels of interleukin (IL)-8 in serum, but increased levels of regulated activation, normal T cell expression in liver and levels of IL-10 in serum of CVB3-infected mice. In summary, curcumin presents antiviral and anti-inflammation efficacies in CVB3 infection in vitro and in vivo; these results provide potential evidence on the feasibility of curcumin for clinical treatment.
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Affiliation(s)
- Yu-Jheng Lin
- Department of Microbiology & Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Li-Chiu Wang
- School of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Huey-Pin Tsai
- Department of Pathology,College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan 70401, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70401, Taiwan
| | - Chia-Yu Chi
- Department of Microbiology & Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli County 35053, Taiwan
| | - Chih-Peng Chang
- Department of Microbiology & Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 70401, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 70401, Taiwan
| | - Shun-Hua Chen
- Department of Microbiology & Immunology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 70401, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 70401, Taiwan.
| | - Shih-Min Wang
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 70401, Taiwan; Center for Infection Control, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70401, Taiwan.
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3
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Guo X, Feng Y, Zhao X, Qiao S, Ma Z, Li Z, Zheng H, Xiao S. Coronavirus Porcine Epidemic Diarrhea Virus Utilizes Chemokine Interleukin-8 to Facilitate Viral Replication by Regulating Ca 2+ Flux. J Virol 2023; 97:e0029223. [PMID: 37133374 PMCID: PMC10231212 DOI: 10.1128/jvi.00292-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 04/10/2023] [Indexed: 05/04/2023] Open
Abstract
Chemokine production by epithelial cells is crucial for neutrophil recruitment to sites of inflammation during viral infection. However, the effect of chemokine on epithelia and how chemokine is involved in coronavirus infection remains to be fully understood. Here, we identified an inducible chemokine interleukin-8 (CXCL8/IL-8), which could promote coronavirus porcine epidemic diarrhea virus (PEDV) infection in African green monkey kidney epithelial cells (Vero) and Lilly Laboratories cell-porcine kidney 1 epithelial cells (LLC-PK1). IL-8 deletion restrained cytosolic calcium (Ca2+), whereas IL-8 stimulation improved cytosolic Ca2+. The consumption of Ca2+ restricted PEDV infection. PEDV internalization and budding were obvious reductions when cytosolic Ca2+ was abolished in the presence of Ca2+ chelators. Further study revealed that the upregulated cytosolic Ca2+ redistributes intracellular Ca2+. Finally, we identified that G protein-coupled receptor (GPCR)-phospholipase C (PLC)-inositol trisphosphate receptor (IP3R)-store-operated Ca2+ (SOC) signaling was crucial for enhancive cytosolic Ca2+ and PEDV infection. To our knowledge, this study is the first to uncover the function of chemokine IL-8 during coronavirus PEDV infection in epithelia. PEDV induces IL-8 expression to elevate cytosolic Ca2+, promoting its infection. Our findings reveal a novel role of IL-8 in PEDV infection and suggest that targeting IL-8 could be a new approach to controlling PEDV infection. IMPORTANCE Coronavirus porcine epidemic diarrhea virus (PEDV) is a highly contagious enteric coronavirus that caused severe economic losses worldwide, and more effort is needed to develop economical and efficient vaccines to control or eliminate this disease. The chemokine interleukin-8 (CXCL8/IL-8) is indispensable for the activation and trafficking of inflammatory mediators and tumor progression and metastasis. This study evaluated the effect of IL-8 on PEDV infection in epithelia. We found that IL-8 expression improved cytosolic Ca2+ in epithelia, facilitating PEDV rapid internalization and egress. G protein-coupled receptor (GPCR)-phospholipase C (PLC)-inositol trisphosphate receptor (IP3R)-SOC signaling was activated by IL-8, releasing the intracellular Ca2+ stores from endoplasmic reticulum (ER). These findings provide a better understanding of the role of IL-8 in PEDV-induced immune responses, which will help develop small-molecule drugs for coronavirus cure.
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Affiliation(s)
- Xuyang Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yingtong Feng
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaojing Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Shuang Qiao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Zhiqian Ma
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Zhiwei Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Haixue Zheng
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Shuqi Xiao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
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Dong J, Chen M, Yu L, Rao D, Zhang N, Cong F. Seneca Valley virus induces proinflammatory cytokine and chemokine response in vitro. CANADIAN JOURNAL OF VETERINARY RESEARCH = REVUE CANADIENNE DE RECHERCHE VETERINAIRE 2023; 87:120-126. [PMID: 37020572 PMCID: PMC10069161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 08/09/2022] [Indexed: 04/07/2023]
Abstract
Seneca Valley virus (SVV) is an oncolytic virus, which belongs to the Picornaviridae family, that causes blisters on the nose and hooves, affecting the production performance of pigs. However, the function of proinflammatory cytokines and chemokines in SVV infection is still unclear. In our study, SVV infection could induce a high expression of proinflammatory cytokines interleukin (IL)-1α, IL-1β, and tumor necrosis factor α (TNF-α) and chemokines, including chemokine (C-C motif) ligand 2 (CCL2), chemokine (C-C motif) ligand 5 (CCL5), and chemokine (C-X-C motif) ligand 10 (CXCL10). Interfered genes of IL-1α, IL-1β, and TNF-α inhibited virus replication, but interfered genes of CCL2, CCL5, and CXCL10 promoted virus replication. These results indicate that proinflammatory cytokines and chemokines are involved in SVV infection; this will be beneficial to explore the pathogenesis and cytokine therapy of SVV.
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Affiliation(s)
- Jianguo Dong
- School of Animal Science and Veterinary Medicine, Xinyang Agriculture and Forestry University, Xinyang 464000, China (Dong, Chen, Rao); College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China (Yu); Laboratory Animals Monitoring Institute and Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510633, China (Cong); Henan Fengyuan Hepu Agriculture and Animal Husbandry, Zhumadian 463900, China (Zhang)
| | - Mingrui Chen
- School of Animal Science and Veterinary Medicine, Xinyang Agriculture and Forestry University, Xinyang 464000, China (Dong, Chen, Rao); College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China (Yu); Laboratory Animals Monitoring Institute and Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510633, China (Cong); Henan Fengyuan Hepu Agriculture and Animal Husbandry, Zhumadian 463900, China (Zhang)
| | - Linyang Yu
- School of Animal Science and Veterinary Medicine, Xinyang Agriculture and Forestry University, Xinyang 464000, China (Dong, Chen, Rao); College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China (Yu); Laboratory Animals Monitoring Institute and Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510633, China (Cong); Henan Fengyuan Hepu Agriculture and Animal Husbandry, Zhumadian 463900, China (Zhang)
| | - Dan Rao
- School of Animal Science and Veterinary Medicine, Xinyang Agriculture and Forestry University, Xinyang 464000, China (Dong, Chen, Rao); College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China (Yu); Laboratory Animals Monitoring Institute and Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510633, China (Cong); Henan Fengyuan Hepu Agriculture and Animal Husbandry, Zhumadian 463900, China (Zhang)
| | - Ning Zhang
- School of Animal Science and Veterinary Medicine, Xinyang Agriculture and Forestry University, Xinyang 464000, China (Dong, Chen, Rao); College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China (Yu); Laboratory Animals Monitoring Institute and Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510633, China (Cong); Henan Fengyuan Hepu Agriculture and Animal Husbandry, Zhumadian 463900, China (Zhang)
| | - Feng Cong
- School of Animal Science and Veterinary Medicine, Xinyang Agriculture and Forestry University, Xinyang 464000, China (Dong, Chen, Rao); College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China (Yu); Laboratory Animals Monitoring Institute and Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510633, China (Cong); Henan Fengyuan Hepu Agriculture and Animal Husbandry, Zhumadian 463900, China (Zhang)
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5
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Resiliac J, Rohlfing M, Santoro J, Hussain SRA, Grayson MH. Low-Dose Lipopolysaccharide Protects from Lethal Paramyxovirus Infection in a Macrophage- and TLR4-Dependent Process. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:348-355. [PMID: 36480273 PMCID: PMC9851983 DOI: 10.4049/jimmunol.2200604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/14/2022] [Indexed: 01/03/2023]
Abstract
Respiratory diseases are a major public health burden and a leading cause of death and disability in the world. Understanding antiviral immune responses is crucial to alleviate morbidity and mortality associated with these respiratory viral infections. Previous data from human and animal studies suggested that pre-existing atopy may provide some protection against severe disease from a respiratory viral infection. However, the mechanism(s) of protection is not understood. Low-dose LPS has been shown to drive an atopic phenotype in mice. In addition, LPS has been shown in vitro to have an antiviral effect. We examined the effect of LPS treatment on mortality to the murine parainfluenza virus Sendai virus. Low-dose LPS treatment 24 h before inoculation with a normally lethal dose of Sendai virus greatly reduced death. This protection was associated with a reduced viral titer and reduced inflammatory cytokine production in the airways. The administration of LPS was associated with a marked increase in lung neutrophils and macrophages. Depletion of neutrophils failed to reverse the protective effect of LPS; however, depletion of macrophages reversed the protective effect of LPS. Further, we demonstrate that the protective effect of LPS depends on type I IFN and TLR4-MyD88 signaling. Together, these studies demonstrate pretreatment with low-dose LPS provides a survival advantage against a severe respiratory viral infection through a macrophage-, TLR4-, and MyD88-dependent pathway.
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Affiliation(s)
- Jenny Resiliac
- The Ohio State University College of Medicine, Biomedical Sciences Graduate Program, Columbus, Ohio
- Abigail Wexner Research Institute at Nationwide Children’s Hospital, Center for Clinical and Translational Research, Columbus, Ohio
| | - Michelle Rohlfing
- Abigail Wexner Research Institute at Nationwide Children’s Hospital, Center for Clinical and Translational Research, Columbus, Ohio
| | - Jennifer Santoro
- Abigail Wexner Research Institute at Nationwide Children’s Hospital, Center for Clinical and Translational Research, Columbus, Ohio
| | - Syed-Rehan A. Hussain
- Abigail Wexner Research Institute at Nationwide Children’s Hospital, Center for Clinical and Translational Research, Columbus, Ohio
| | - Mitchell H. Grayson
- Abigail Wexner Research Institute at Nationwide Children’s Hospital, Center for Clinical and Translational Research, Columbus, Ohio
- Division of Allergy and Immunology, Department of Pediatrics, Nationwide Children’s Hospital and The Ohio State University, Columbus, OH
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6
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Ciaston I, Dobosz E, Potempa J, Koziel J. The subversion of toll-like receptor signaling by bacterial and viral proteases during the development of infectious diseases. Mol Aspects Med 2022; 88:101143. [PMID: 36152458 PMCID: PMC9924004 DOI: 10.1016/j.mam.2022.101143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/29/2022] [Accepted: 09/09/2022] [Indexed: 02/05/2023]
Abstract
Toll-like receptors (TLRs) are pattern recognition receptors (PRRs) that respond to pathogen-associated molecular patterns (PAMPs). The recognition of specific microbial ligands by TLRs triggers an innate immune response and also promotes adaptive immunity, which is necessary for the efficient elimination of invading pathogens. Successful pathogens have therefore evolved strategies to subvert and/or manipulate TLR signaling. Both the impairment and uncontrolled activation of TLR signaling can harm the host, causing tissue destruction and allowing pathogens to proliferate, thus favoring disease progression. In this context, microbial proteases are key virulence factors that modify components of the TLR signaling pathway. In this review, we discuss the role of bacterial and viral proteases in the manipulation of TLR signaling, highlighting the importance of these enzymes during the development of infectious diseases.
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Affiliation(s)
- Izabela Ciaston
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Ewelina Dobosz
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Jan Potempa
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Department of Oral Health and Systemic Disease, University of Louisville School of Dentistry, University of Louisville, Louisville, KY, USA.
| | - Joanna Koziel
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
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7
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Reus JB, Rex EA, Gammon DB. How to Inhibit Nuclear Factor-Kappa B Signaling: Lessons from Poxviruses. Pathogens 2022; 11:pathogens11091061. [PMID: 36145493 PMCID: PMC9502310 DOI: 10.3390/pathogens11091061] [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: 08/08/2022] [Revised: 09/10/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
The Nuclear Factor-kappa B (NF-κB) family of transcription factors regulates key host inflammatory and antiviral gene expression programs, and thus, is often activated during viral infection through the action of pattern-recognition receptors and cytokine–receptor interactions. In turn, many viral pathogens encode strategies to manipulate and/or inhibit NF-κB signaling. This is particularly exemplified by vaccinia virus (VV), the prototypic poxvirus, which encodes at least 18 different inhibitors of NF-κB signaling. While many of these poxviral NF-κB inhibitors are not required for VV replication in cell culture, they virtually all modulate VV virulence in animal models, underscoring the important influence of poxvirus–NF-κB pathway interactions on viral pathogenesis. Here, we review the diversity of mechanisms through which VV-encoded antagonists inhibit initial NF-κB pathway activation and NF-κB signaling intermediates, as well as the activation and function of NF-κB transcription factor complexes.
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8
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Yang L, Chen H, Liu L, Song J, Feng T, Li Y, Shen C, Kong L, Xin X. Foot-and-mouth disease virus VP1 promotes viral replication by regulating the expression of chemokines and GBP1. Front Vet Sci 2022; 9:937409. [PMID: 35937300 PMCID: PMC9353127 DOI: 10.3389/fvets.2022.937409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/28/2022] [Indexed: 11/13/2022] Open
Abstract
Foot-and-mouth disease virus (FMDV) is an acute, highly contagious, and economically destructive pathogen of vesicular disease that affects domestic and wild cloven-hoofed animals. The FMDV VP1 protein is an important part of the nucleocapsid and plays a significant role during FMDV infection. However, the signal pathways mediated by VP1 in the life cycle of FMDV and the related mechanisms are not yet fully understood. Here, we performed RNA-seq to compare gene expression profiles between pCAGGS-HA-VP1 transfected PK-15 cells and pCAGGS-HA (empty vector) transfected PK-15 cells. The results showed 5,571 genes with significantly different expression levels, of which 2,981 were up-regulated and 2,590 were down-regulated. GO enrichment analysis showed that 51 GO terms were significantly enriched in cell components including protein complex, membrane and organelle part. KEGG enrichment analysis showed 11 KEGG pathways were significantly enriched which were mainly related to the immune system, infectious viral disease, and signal transduction. Among the up-regulated genes, the chemokines such as CCL5, CXCL8, and CXCL10 in turn promoted FMDV replication. In contrast, GBP1, an interferon-stimulated gene that was suppressed by VP1 and FMDV, could effectively inhibit FMDV replication. Our research provides a comprehensive overview of the response of host cells to VP1 protein and a basis for further research to understand the roles of VP1 in FMDV infection including the genes involved in FMDV replication.
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Affiliation(s)
- Li Yang
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Hong Chen
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Liqing Liu
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Jingjing Song
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Tian Feng
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Yihan Li
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Chao Shen
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, China
| | - Lingbao Kong
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Xiu Xin
- Nanchang City Key Laboratory of Animal Virus and Genetic Engineering, Nanchang, China
- Institute of Pathogenic Microorganism, Jiangxi Agricultural University, Nanchang, China
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, China
- *Correspondence: Xiu Xin
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9
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Genetic Associations and Differential mRNA Expression Levels of Host Genes Suggest a Viral Trigger for Endemic Pemphigus Foliaceus. Viruses 2022; 14:v14050879. [PMID: 35632621 PMCID: PMC9144834 DOI: 10.3390/v14050879] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 12/04/2022] Open
Abstract
The long search for the environmental trigger of the endemic pemphigus foliaceus (EPF, fogo selvagem) has not yet resulted in any tangible findings. Here, we searched for genetic associations and the differential expression of host genes involved in early viral infections and innate antiviral defense. Genetic variants could alter the structure, expression sites, or levels of the gene products, impacting their functions. By analyzing 3063 variants of 166 candidate genes in 227 EPF patients and 194 controls, we found 12 variants within 11 genes associated with differential susceptibility (p < 0.005) to EPF. The products of genes TRIM5, TPCN2, EIF4E, EIF4E3, NUP37, NUP50, NUP88, TPR, USP15, IRF8, and JAK1 are involved in different mechanisms of viral control, for example, the regulation of viral entry into the host cell or recognition of viral nucleic acids and proteins. Only two of nine variants were also associated in an independent German cohort of sporadic PF (75 patients, 150 controls), aligning with our hypothesis that antiviral host genes play a major role in EPF due to a specific virus−human interaction in the endemic region. Moreover, CCL5, P4HB, and APOBEC3G mRNA levels were increased (p < 0.001) in CD4+ T lymphocytes of EPF patients. Because there is limited or no evidence that these genes are involved in autoimmunity, their crucial role in antiviral responses and the associations that we observed support the hypothesis of a viral trigger for EPF, presumably a still unnoticed flavivirus. This work opens new frontiers in searching for the trigger of EPF, with the potential to advance translational research that aims for disease prevention and treatment.
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10
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Ferrero MR, Tavares LP, Garcia CC. The Dual Role of CCR5 in the Course of Influenza Infection: Exploring Treatment Opportunities. Front Immunol 2022; 12:826621. [PMID: 35126379 PMCID: PMC8810482 DOI: 10.3389/fimmu.2021.826621] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/31/2021] [Indexed: 12/12/2022] Open
Abstract
Influenza is one of the most relevant respiratory viruses to human health causing annual epidemics, and recurrent pandemics. Influenza disease is principally associated with inappropriate activation of the immune response. Chemokine receptor 5 (CCR5) and its cognate chemokines CCL3, CCL4 and CCL5 are rapidly induced upon influenza infection, contributing to leukocyte recruitment into the airways and a consequent effective antiviral response. Here we discuss the existing evidence for CCR5 role in the host immune responses to influenza virus. Complete absence of CCR5 in mice revealed the receptor’s role in coping with influenza via the recruitment of early memory CD8+ T cells, B cell activation and later recruitment of activated CD4+ T cells. Moreover, CCR5 contributes to inflammatory resolution by enhancing alveolar macrophages survival and reprogramming macrophages to pro-resolving phenotypes. In contrast, CCR5 activation is associated with excessive recruitment of neutrophils, inflammatory monocytes, and NK cells in models of severe influenza pneumonia. The available data suggests that, while CCL5 can play a protective role in influenza infection, CCL3 may contribute to an overwhelming inflammatory process that can harm the lung tissue. In humans, the gene encoding CCR5 might contain a 32-base pair deletion, resulting in a truncated protein. While discordant data in literature regarding this CCR5 mutation and influenza severity, the association of CCR5delta32 and HIV resistance fostered the development of different CCR5 inhibitors, now being tested in lung inflammation therapy. The potential use of CCR5 inhibitors to modulate the inflammatory response in severe human influenza infections is to be addressed.
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Affiliation(s)
- Maximiliano Ruben Ferrero
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA)-CONICET-Partner Institute of the Max Planck Society, Buenos Aires, Argentina
- Laboratory of Inflammation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
- *Correspondence: Maximiliano Ruben Ferrero,
| | - Luciana Pádua Tavares
- Pulmonary and Critical Care Medicine Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, United States
| | - Cristiana Couto Garcia
- Laboratory of Respiratory Virus and Measles, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
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