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Schaunaman N, Cervantes D, Nichols T, Numata M, Ledford JG, Kraft M, Chu HW. Cooperation of immune regulators Tollip and surfactant protein A inhibits influenza A virus infection in mice. Respir Res 2024; 25:193. [PMID: 38702733 PMCID: PMC11068576 DOI: 10.1186/s12931-024-02820-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 04/23/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Influenza A virus (IAV) infection is a significant risk factor for respiratory diseases, but the host defense mechanisms against IAV remain to be defined. Immune regulators such as surfactant protein A (SP-A) and Toll-interacting protein (Tollip) have been shown to be involved in IAV infection, but whether SP-A and Tollip cooperate in more effective host defense against IAV infection has not been investigated. METHODS Wild-type (WT), Tollip knockout (KO), SP-A KO, and Tollip/SP-A double KO (dKO) mice were infected with IAV for four days. Lung macrophages were isolated for bulk RNA sequencing. Precision-cut lung slices (PCLS) from WT and dKO mice were pre-treated with SP-A and then infected with IAV for 48 h. RESULTS Viral load was significantly increased in bronchoalveolar lavage (BAL) fluid of dKO mice compared to all other strains of mice. dKO mice had significantly less recruitment of neutrophils into the lung compared to Tollip KO mice. SP-A treatment of PCLS enhanced expression of TNF and reduced viral load in dKO mouse lung tissue. Pathway analysis of bulk RNA sequencing data suggests that macrophages from IAV-infected dKO mice reduced expression of genes involved in neutrophil recruitment, IL-17 signaling, and Toll-like receptor signaling. CONCLUSIONS Our data suggests that both Tollip and SP-A are essential for the lung to exert more effective innate defense against IAV infection.
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Affiliation(s)
- Niccolette Schaunaman
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Room A639, Denver, CO, 80206, USA
| | - Diana Cervantes
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Room A639, Denver, CO, 80206, USA
| | - Taylor Nichols
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Room A639, Denver, CO, 80206, USA
| | - Mari Numata
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Room A639, Denver, CO, 80206, USA
| | | | - Monica Kraft
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hong Wei Chu
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Room A639, Denver, CO, 80206, USA.
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2
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Cheng M, Zhang Y, Yan J, Huang Y, Wang M, Zhai Z, Liu G, Liu C, Li J, Zhang Y, Xiao Y, Wang C, Ban C, Ren Z, Song L. Inhibiting virus replication and excessive inflammatory response: Mechanism of combined prescription of Ma-Xing-Shi-Gan decoction and Xiao-Chai-Hu decoction against influenza virus. J Ethnopharmacol 2023; 313:116481. [PMID: 37072090 DOI: 10.1016/j.jep.2023.116481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/24/2023] [Accepted: 04/08/2023] [Indexed: 05/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The combined prescription of two classical decoctions (Ma-Xing-Shi-Gan decoction with Xiao-Chai-Hu decoction), named as San-Yang-He-Zhi (SYHZ) decoction, has been widely used for the treatment of influenza virus (IFV) infections for decades. AIM OF THE STUDY This study aimed to evaluate the anti-influenza effect of SYHZ decoction and explore the underlying mechanism. MATERIALS AND METHODS The ingredients of SYHZ decoction were analyzed by mass spectrometry. An animal model of IFV infection was established by challenging C57BL/6J mice with PR8 virus. Three groups of mice were infected with lethal or non-lethal doses of IFV, then followed by oral administration of phosphate-buffered saline (PBS), or SYHZ, or oseltamir; blank control mice (without IFV infection) were treated with PBS. Survival rate, Lung index, colon length, body weight loss and IFV viral load were measured 7 days post infection; histology and electron-microscopy examinations of lung tissue were performed; cytokine and chemokine levels in lung and serum were measured; and the intestinal metagenome, the cecum metabolome, and the lung transcriptome were analyzed. RESULTS SYHZ treatment significantly improved survival rate compared with PBS (40% vs 0%); improved lung index, colon length, and body weight loss; and alleviated lung histological damage and viral load. SYHZ-treated mice had significantly lower levels of IL-1β, TNF-α, IL-6, CCL2, CXCL10 in lung and serum, and increased levels of multiple bioactive components in cecum. Pro-inflammatory cytokines, Toll- and NOD-like receptors, pro-apoptosis molecules, and lung-injury-related proteins were downregulated in SYHZ mice, whereas surfactant protein and mucin were upregulated. The NOD-like receptor pathway, Toll-like receptor pathway, and NF-κB pathway were downregulated by SYHZ treatment. CONCLUSIONS SYHZ decoction alleviated IFV infection in a mouse model. Multiple bioactive ingredients of SYHZ may inhibit replication of IFV and suppress excessive immune response.
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Affiliation(s)
- Miao Cheng
- Respiratory Department, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Yanan Zhang
- Respiratory Department, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Jun Yan
- Respiratory Department, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Yuanming Huang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Research Units of Discovery of Unknown Bacteria and Function (2018 RU010), Chinese Academy of Medical Sciences, Beijing, 102206, China
| | - Mingzhe Wang
- Respiratory Department, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Zhiguang Zhai
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medicine Science, Beijing, 100700, China
| | - Guoxing Liu
- Traditional Chinese Medicine Department, Linwei Liu Zunji Clinic of Traditional Chinese Medicine, Weinan, 714000, China
| | - Chang Liu
- Gulou Hospital of Traditional Chinese Medicine of Beijing, 100009, China
| | - Jintong Li
- Respiratory Department, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Yue Zhang
- Respiratory Department, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Yuchun Xiao
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Research Units of Discovery of Unknown Bacteria and Function (2018 RU010), Chinese Academy of Medical Sciences, Beijing, 102206, China
| | - Chengxiang Wang
- Respiratory Department, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Chengjun Ban
- Respiratory Department, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Zhihong Ren
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Research Units of Discovery of Unknown Bacteria and Function (2018 RU010), Chinese Academy of Medical Sciences, Beijing, 102206, China.
| | - Liqiong Song
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Research Units of Discovery of Unknown Bacteria and Function (2018 RU010), Chinese Academy of Medical Sciences, Beijing, 102206, China.
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3
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Yau E, Yang L, Chen Y, Umstead TM, Atkins H, Katz ZE, Yewdell JW, Gandhi CK, Halstead ES, Chroneos ZC. Surfactant protein A alters endosomal trafficking of influenza A virus in macrophages. Front Immunol 2023; 14:919800. [PMID: 36960051 PMCID: PMC10028185 DOI: 10.3389/fimmu.2023.919800] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 02/21/2023] [Indexed: 03/09/2023] Open
Abstract
Influenza A virus infection (IAV) often leads to acute lung injury that impairs breathing and can lead to death, with disproportionate mortality in children and the elderly. Surfactant Protein A (SP-A) is a calcium-dependent opsonin that binds a variety of pathogens to help control pulmonary infections by alveolar macrophages. Alveolar macrophages play critical roles in host resistance and susceptibility to IAV infection. The effect of SP-A on IAV infection and antiviral response of macrophages, however, is not understood. Here, we report that SP-A attenuates IAV infection in a dose-dependent manner at the level of endosomal trafficking, resulting in infection delay in a model macrophage cell line. The ability of SP-A to suppress infection was independent of its glycosylation status. Binding of SP-A to hemagglutinin did not rely on the glycosylation status or sugar binding properties of either protein. Incubation of either macrophages or IAV with SP-A slowed endocytic uptake rate of IAV. SP-A interfered with binding to cell membrane and endosomal exit of the viral genome as indicated by experiments using isolated cell membranes, an antibody recognizing a pH-sensitive conformational epitope on hemagglutinin, and microscopy. Lack of SP-A in mice enhanced IFNβ expression, viral clearance and reduced mortality from IAV infection. These findings support the idea that IAV is an opportunistic pathogen that co-opts SP-A to evade host defense by alveolar macrophages. Our study highlights novel aspects of host-pathogen interactions that may lead to better understanding of the local mechanisms that shape activation of antiviral and inflammatory responses to viral infection in the lung.
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Affiliation(s)
- Eric Yau
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Linlin Yang
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Yan Chen
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Todd M. Umstead
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Hannah Atkins
- Department of Comparative Medicine, Pennsylvania State University College of Medicine, PA, Hershey, United States
| | - Zoe E. Katz
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Jonathan W. Yewdell
- Cellular Biology Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD, United States
| | - Chintan K. Gandhi
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - E. Scott Halstead
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Zissis C. Chroneos
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA, United States
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, United States
- *Correspondence: Zissis C. Chroneos,
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4
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Emery L, Kane E, Anderson-Fears K, Liu D, Floros J, Gandhi CK. Association of surfactant protein A2 with acute respiratory failure in children. Pediatr Int 2023; 65:e15672. [PMID: 37888536 PMCID: PMC10617656 DOI: 10.1111/ped.15672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/23/2023] [Accepted: 09/06/2023] [Indexed: 10/28/2023]
Abstract
BACKGROUND Interactions among single nucleotide polymorphisms (SNPs) of surfactant protein (SP) are associated with acute respiratory failure (ARF) and its short-term outcome, pulmonary dysfunction at discharge (PDAD) in children. However, genetic association studies using individual SNPs have not been conducted before. We hypothesize that SP genetic variants are associated with pediatric ARF and its short-term complications by themselves. METHODS We used available genotype and clinical data in the Floros biobank consisting of 248 children aged ≤24 months with ARF; 86 developed PDAD. A logistic regression analysis was performed for each of the 14 selected SNPs, SP-A1 and SP-A2 genotypes. A p-value less than the Bonferroni correction threshold was considered significant. A likelihood ratio test was done to compare two models (one with demographic data and another with genetic variants). RESULTS Before Bonferroni correction, female sex is associated with a decreased risk of ARF. Black race and the rs721917 of the SFTPD are associated with increased risk of ARF. After Bonferroni correction, the 1A0 1A1 genotype of SFTPA2 was associated with decreased risk of ARF. The likelihood ratio test showed that the model of the genotype information with demographic data was a better fit to predict ARF risk. None of the SP SNPs and SP-A1, SP-A2 genotypes were associated with PDAD. CONCLUSION Our results indicate that SNPs and genotypes of SPs involved in innate immunity and host defense play an important role in ARF and, in the future, may be used as biomarkers.
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Affiliation(s)
- Lucy Emery
- Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, Pennsylvania, United States of America
| | - Elizabeth Kane
- Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, Pennsylvania, United States of America
| | - Keenan Anderson-Fears
- Department of Public Health Science, The Pennsylvania State College of Medicine, Hershey, Pennsylvania, United States of America
| | - Dajiang Liu
- Department of Public Health Science, The Pennsylvania State College of Medicine, Hershey, Pennsylvania, United States of America
| | - Joanna Floros
- Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, Pennsylvania, United States of America
- Department of Obstetrics & Gynecology, The Pennsylvania State College of Medicine, Hershey, Pennsylvania, United States of America
| | - Chintan K Gandhi
- Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, Pennsylvania, United States of America
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5
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Zhang Q, Pizzorno A, Miorin L, Bastard P, Gervais A, Le Voyer T, Bizien L, Manry J, Rosain J, Philippot Q, Goavec K, Padey B, Cupic A, Laurent E, Saker K, Vanker M, Särekannu K, García-Salum T, Ferres M, Le Corre N, Sánchez-Céspedes J, Balsera-Manzanero M, Carratala J, Retamar-Gentil P, Abelenda-Alonso G, Valiente A, Tiberghien P, Zins M, Debette S, Meyts I, Haerynck F, Castagnoli R, Notarangelo LD, Gonzalez-Granado LI, Dominguez-Pinilla N, Andreakos E, Triantafyllia V, Rodríguez-Gallego C, Solé-Violán J, Ruiz-Hernandez JJ, Rodríguez de Castro F, Ferreres J, Briones M, Wauters J, Vanderbeke L, Feys S, Kuo CY, Lei WT, Ku CL, Tal G, Etzioni A, Hanna S, Fournet T, Casalegno JS, Queromes G, Argaud L, Javouhey E, Rosa-Calatrava M, Cordero E, Aydillo T, Medina RA, Kisand K, Puel A, Jouanguy E, Abel L, Cobat A, Trouillet-Assant S, García-Sastre A, Casanova JL. Autoantibodies against type I IFNs in patients with critical influenza pneumonia. J Exp Med 2022; 219:e20220514. [PMID: 36112363 PMCID: PMC9485705 DOI: 10.1084/jem.20220514] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/04/2022] [Accepted: 08/08/2022] [Indexed: 12/31/2022] Open
Abstract
Autoantibodies neutralizing type I interferons (IFNs) can underlie critical COVID-19 pneumonia and yellow fever vaccine disease. We report here on 13 patients harboring autoantibodies neutralizing IFN-α2 alone (five patients) or with IFN-ω (eight patients) from a cohort of 279 patients (4.7%) aged 6-73 yr with critical influenza pneumonia. Nine and four patients had antibodies neutralizing high and low concentrations, respectively, of IFN-α2, and six and two patients had antibodies neutralizing high and low concentrations, respectively, of IFN-ω. The patients' autoantibodies increased influenza A virus replication in both A549 cells and reconstituted human airway epithelia. The prevalence of these antibodies was significantly higher than that in the general population for patients <70 yr of age (5.7 vs. 1.1%, P = 2.2 × 10-5), but not >70 yr of age (3.1 vs. 4.4%, P = 0.68). The risk of critical influenza was highest in patients with antibodies neutralizing high concentrations of both IFN-α2 and IFN-ω (OR = 11.7, P = 1.3 × 10-5), especially those <70 yr old (OR = 139.9, P = 3.1 × 10-10). We also identified 10 patients in additional influenza patient cohorts. Autoantibodies neutralizing type I IFNs account for ∼5% of cases of life-threatening influenza pneumonia in patients <70 yr old.
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Affiliation(s)
- Qian Zhang
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Andrés Pizzorno
- CIRI, Centre International de Recherche en Infectiologie - Team VirPath, Univ Lyon, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
| | - Lisa Miorin
- Dept. of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Paul Bastard
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
- Dept. of Pediatrics, Necker Hospital for Sick Children, AP-HP, Paris, France
| | - Adrian Gervais
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Tom Le Voyer
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Lucy Bizien
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Jeremy Manry
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Jérémie Rosain
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Quentin Philippot
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Kelian Goavec
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Blandine Padey
- CIRI, Centre International de Recherche en Infectiologie - Team VirPath, Univ Lyon, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
- Signia Therapeutics SAS, Lyon, France
| | - Anastasija Cupic
- Dept. of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Emilie Laurent
- CIRI, Centre International de Recherche en Infectiologie - Team VirPath, Univ Lyon, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
- VirNext, Faculty of Medicine RTH Laennec, Claude Bernard Lyon 1 University, Lyon University, Lyon, France
| | - Kahina Saker
- Joint Research Unit, Hospices Civils de Lyon-bioMérieux, Hospices Civils de Lyon, Lyon Sud Hospital, Pierre-Bénite, France
| | - Martti Vanker
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Karita Särekannu
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Tamara García-Salum
- Dept. of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Pathology Advanced Translational Research Unit, Dept. of Pathology and Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA
| | - Marcela Ferres
- Dept. of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nicole Le Corre
- Dept. of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Javier Sánchez-Céspedes
- Center for Biomedical Research in Infectious Diseases Network (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases, Microbiology and Preventive Medicine, Virgen del Rocío University Hospital, Sevilla, Spain
- Institute of Biomedicine of Seville (IBiS), CSIC, University of Seville, Seville, Spain
| | - María Balsera-Manzanero
- Center for Biomedical Research in Infectious Diseases Network (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases, Microbiology and Preventive Medicine, Virgen del Rocío University Hospital, Sevilla, Spain
- Institute of Biomedicine of Seville (IBiS), CSIC, University of Seville, Seville, Spain
| | - Jordi Carratala
- Center for Biomedical Research in Infectious Diseases Network (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Pilar Retamar-Gentil
- Center for Biomedical Research in Infectious Diseases Network (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Institute of Biomedicine of Seville (IBiS), CSIC, University of Seville, Seville, Spain
- Infectious Diseases, Microbiology Unit, Virgen Macarena University Hospital, Seville, Spain
| | - Gabriela Abelenda-Alonso
- Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
- Dept. of Infectious Diseases, Bellvitge University Hospital, Barcelona, Spain
| | - Adoración Valiente
- Center for Biomedical Research in Infectious Diseases Network (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases, Microbiology and Preventive Medicine, Virgen del Rocío University Hospital, Sevilla, Spain
- Infectious Diseases, Microbiology Unit, Virgen Macarena University Hospital, Seville, Spain
| | - Pierre Tiberghien
- Etablissement Francais Du Sang, La Plaine-Saint Denis, Saint-Denis, France
| | - Marie Zins
- University of Paris Cite, University of Paris-Saclay, UVSQ, INSERM UMS11, Villejuif, France
| | - Stéphanie Debette
- University of Bordeaux, INSERM, Bordeaux Population Health Center, UMR1219, Bordeaux, France
| | - Isabelle Meyts
- Laboratory for Inborn Errors of Immunity, Dept. of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Filomeen Haerynck
- Dept. of Pediatric Immunology and Pulmonology, Centre for Primary Immunodeficiency Ghent, PID Research Laboratory, Jeffrey Modell Diagnosis and Research Centre, Ghent University Hospital, Ghent, Belgium
| | - Riccardo Castagnoli
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Luigi D. Notarangelo
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Luis I. Gonzalez-Granado
- Immunodeficiencies Unit, Hospital October 12, Research Institute Hospital October 12, School of Medicine, Complutense University, Madrid, Spain
| | - Nerea Dominguez-Pinilla
- Pediatrics Service, Hematology and Oncology Unit, University Hospital 12 October, Madrid, Spain
| | - Evangelos Andreakos
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Vasiliki Triantafyllia
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Carlos Rodríguez-Gallego
- Dept. of Immunology, University Hospital of Gran Canaria Dr. Negrín, Canarian Health System, Las Palmas de Gran Canaria, Spain
- Dept. of Clinical Sciences, University Fernando Pessoa Canarias, Las Palmas de Gran Canaria, Spain
| | - Jordi Solé-Violán
- Dept. of Clinical Sciences, University Fernando Pessoa Canarias, Las Palmas de Gran Canaria, Spain
- Critical Care Unit, University Hospital of Gran Canaria Dr. Negrin, Canarian Health System, Las Palmas de Gran Canaria, Spain
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - José Juan Ruiz-Hernandez
- Dept. of Internal Medicine, University Hospital of Gran Canaria Dr. Negrin, Canarian Health System, Las Palmas de Gran Canaria, Spain
| | - Felipe Rodríguez de Castro
- Dept. of Respiratory Diseases, University Hospital of Gran Canaria Dr. Negrin, Canarian Health System, Las Palmas de Gran Canaria, Spain
- Dept. of Medical and Surgical Sciences, School of Medicine, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - José Ferreres
- Critical Care Unit, Hospital Clínico de Valencia, Valencia, Spain
- INCLIVA Biomedical Research Institute, Valencia, Spain
| | - Marisa Briones
- Dept. of Respiratory Diseases, Hospital Clínico y Universitario de Valencia, Valencia, Spain
| | - Joost Wauters
- Dept. of General Internal Medicine, Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Lore Vanderbeke
- Dept. of General Internal Medicine, Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Simon Feys
- Dept. of General Internal Medicine, Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Chen-Yen Kuo
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Dept. of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wei-Te Lei
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Dept. of Pediatrics, Hsinchu MacKay Memorial Hospital, Hsinchu, Taiwan
| | - Cheng-Lung Ku
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Dept. of Nephrology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan
| | - Galit Tal
- Metabolic Clinic, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel
- Rappaport Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Amos Etzioni
- Metabolic Clinic, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel
| | - Suhair Hanna
- Metabolic Clinic, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel
| | - Thomas Fournet
- Etablissement Français Du Sang, Université de Franche-Comté, Besançon, France
| | - Jean-Sebastien Casalegno
- Virology Laboratory, CNR des Virus des Infections Respiratoires, Institut des Agents Infectieux, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | - Gregory Queromes
- CIRI, Centre International de Recherche en Infectiologie - Team VirPath, Univ Lyon, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
| | - Laurent Argaud
- Medical Intensive Care Dept., Hospices Civils de Lyon, Edouard Herriot Hospital, Lyon, France
| | - Etienne Javouhey
- Pediatric Intensive Care Unit, Hospices Civils de Lyon, Hopital Femme Mère Enfant, Lyon, France
| | - Manuel Rosa-Calatrava
- CIRI, Centre International de Recherche en Infectiologie - Team VirPath, Univ Lyon, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
- VirNext, Faculty of Medicine RTH Laennec, Claude Bernard Lyon 1 University, Lyon University, Lyon, France
| | - Elisa Cordero
- Center for Biomedical Research in Infectious Diseases Network (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases, Microbiology and Preventive Medicine, Virgen del Rocío University Hospital, Sevilla, Spain
- Institute of Biomedicine of Seville (IBiS), CSIC, University of Seville, Seville, Spain
- Dept. of Medicine, School of Medicine, University of Seville, Seville, Spain
| | - Teresa Aydillo
- Dept. of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Rafael A. Medina
- Dept. of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
- Dept. of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Kai Kisand
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Anne Puel
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Emmanuelle Jouanguy
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Laurent Abel
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Aurélie Cobat
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
| | - Sophie Trouillet-Assant
- CIRI, Centre International de Recherche en Infectiologie - Team VirPath, Univ Lyon, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
- Joint Research Unit, Hospices Civils de Lyon-bioMérieux, Hospices Civils de Lyon, Lyon Sud Hospital, Pierre-Bénite, France
| | - Adolfo García-Sastre
- Dept. of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY
- Dept. of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
- Dept. of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Jean-Laurent Casanova
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Université Paris Cité, Imagine Institute, Paris, France
- Dept. of Pediatrics, Necker Hospital for Sick Children, AP-HP, Paris, France
- Howard Hughes Medical Institute, New York, NY
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6
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Abstract
Annual seasonal influenza epidemics of variable severity caused by influenza A and B virus infections result in substantial disease burden worldwide. Seasonal influenza virus circulation declined markedly in 2020-21 after SARS-CoV-2 emerged but increased in 2021-22. Most people with influenza have abrupt onset of respiratory symptoms and myalgia with or without fever and recover within 1 week, but some can experience severe or fatal complications. Prevention is primarily by annual influenza vaccination, with efforts underway to develop new vaccines with improved effectiveness. Sporadic zoonotic infections with novel influenza A viruses of avian or swine origin continue to pose pandemic threats. In this Seminar, we discuss updates of key influenza issues for clinicians, in particular epidemiology, virology, and pathogenesis, diagnostic testing including multiplex assays that detect influenza viruses and SARS-CoV-2, complications, antiviral treatment, influenza vaccines, infection prevention, and non-pharmaceutical interventions, and highlight gaps in clinical management and priorities for clinical research.
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Affiliation(s)
- Timothy M Uyeki
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - David S Hui
- Division of Respiratory Medicine and Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Maria Zambon
- Virology Reference Department, UK Health Security Agency, London, UK
| | - David E Wentworth
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Arnold S Monto
- Center for Respiratory Research and Response, Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
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7
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Depicolzuane LC, Roberts CM, Thomas NJ, Anderson-Fears K, Liu D, Barbosa JPP, Souza FR, Pimentel AS, Floros J, Gandhi CK. Hydrophilic But Not Hydrophobic Surfactant Protein Genetic Variants Are Associated With Severe Acute Respiratory Syncytial Virus Infection in Children. Front Immunol 2022; 13:922956. [PMID: 35903101 PMCID: PMC9317530 DOI: 10.3389/fimmu.2022.922956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/07/2022] [Indexed: 11/13/2022] Open
Abstract
Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract infection-related hospitalization in the first year of life. Surfactant dysfunction is central to pathophysiologic mechanisms of various pulmonary diseases including RSV. We hypothesized that RSV severity is associated with single nucleotide polymorphisms (SNPs) of surfactant proteins (SPs). We prospectively enrolled 405 RSV-positive children and divided them into moderate and severe RSV disease. DNA was extracted and genotyped for sixteen specific SP gene SNPs. SP-A1 and A2 haplotypes were assigned. The association of RSV severity with SP gene SNPs was investigated by multivariate logistic regression. A likelihood ratio test was used to test the goodness of fit between two models (one with clinical and demographic data alone and another that included genetic variants). p ≤ 0.05 denotes statistical significance. A molecular dynamics simulation was done to determine the impact of the SFTPA2 rs1965708 on the SP-A behavior under various conditions. Infants with severe disease were more likely to be younger, of lower weight, and exposed to household pets and smoking, as well as having co-infection on admission. A decreased risk of severe RSV was associated with the rs17886395_C of the SFTPA2 and rs2243639_A of the SFTPD, whereas an increased risk was associated with the rs1059047_C of the SFTPA1. RSV severity was not associated with SNPs of SFTPB and SFTPC. An increased risk of severe RSV was associated with the 1A0 genotype of SFTPA2 in its homozygous or heterozygous form with 1A3. A molecular dynamic simulation study of SP-A variants that differ in amino acid 223, an important amino acid change (Q223K) between 1A0 and 1A3, showed no major impact on the behavior of these two variants except for higher thermodynamic stability of the K223 variant. The likelihood ratio test showed that the model with multi-allelic variants along with clinical and demographic data was a better fit to predict RSV severity. In summary, RSV severity was associated with hydrophilic (but not with hydrophobic) SPs gene variants. Collectively, our findings show that SP gene variants may play a key role in RSV infection and have a potential role in prognostication.
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Affiliation(s)
- Lynnlee C. Depicolzuane
- Center for Host defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, PA, United States
| | - Catherine M. Roberts
- Center for Host defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, PA, United States
| | - Neal J. Thomas
- Center for Host defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, PA, United States
| | - Keenan Anderson-Fears
- Department of Public Health Science, The Pennsylvania State College of Medicine, Hershey, PA, United States
| | - Dajiang Liu
- Department of Public Health Science, The Pennsylvania State College of Medicine, Hershey, PA, United States
| | | | - Felipe Rodrigues Souza
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
| | - André Silva Pimentel
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Joanna Floros
- Center for Host defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, PA, United States
- Department of Obstetrics & Gynecology, The Pennsylvania State College of Medicine, Hershey, PA, United States
- *Correspondence: Joanna Floros, ; Chintan K. Gandhi,
| | - Chintan K. Gandhi
- Center for Host defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State College of Medicine, Hershey, PA, United States
- *Correspondence: Joanna Floros, ; Chintan K. Gandhi,
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8
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Keskinidou C, Vassiliou AG, Dimopoulou I, Kotanidou A, Orfanos SE. Mechanistic Understanding of Lung Inflammation: Recent Advances and Emerging Techniques. J Inflamm Res 2022; 15:3501-3546. [PMID: 35734098 PMCID: PMC9207257 DOI: 10.2147/jir.s282695] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/04/2022] [Indexed: 12/12/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a life-threatening lung injury characterized by an acute inflammatory response in the lung parenchyma. Hence, it is considered as the most appropriate clinical syndrome to study pathogenic mechanisms of lung inflammation. ARDS is associated with increased morbidity and mortality in the intensive care unit (ICU), while no effective pharmacological treatment exists. It is very important therefore to fully characterize the underlying pathobiology and the related mechanisms, in order to develop novel therapeutic approaches. In vivo and in vitro models are important pre-clinical tools in biological and medical research in the mechanistic and pathological understanding of the majority of diseases. In this review, we will present data from selected experimental models of lung injury/acute lung inflammation, which have been based on clinical disorders that can lead to the development of ARDS and related inflammatory lung processes in humans, including ventilation-induced lung injury (VILI), sepsis, ischemia/reperfusion, smoke, acid aspiration, radiation, transfusion-related acute lung injury (TRALI), influenza, Streptococcus (S.) pneumoniae and coronaviruses infection. Data from the corresponding clinical conditions will also be presented. The mechanisms related to lung inflammation that will be covered are oxidative stress, neutrophil extracellular traps, mitogen-activated protein kinase (MAPK) pathways, surfactant, and water and ion channels. Finally, we will present a brief overview of emerging techniques in the field of omics research that have been applied to ARDS research, encompassing genomics, transcriptomics, proteomics, and metabolomics, which may recognize factors to help stratify ICU patients at risk, predict their prognosis, and possibly, serve as more specific therapeutic targets.
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Affiliation(s)
- Chrysi Keskinidou
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Alice G Vassiliou
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Ioanna Dimopoulou
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Anastasia Kotanidou
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Stylianos E Orfanos
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
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9
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Xu J, Chen Y, Tang L, Teng X, Feng L, Jin L, Wang G, Wang L. Association of surfactant protein D gene polymorphism with susceptibility to gestational diabetes mellitus: a case-control study. BMC Pregnancy Childbirth 2022; 22:231. [PMID: 35317741 PMCID: PMC8939171 DOI: 10.1186/s12884-022-04541-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 03/02/2022] [Indexed: 11/26/2022] Open
Abstract
Background Surfactant protein D (SP-D) is a critical component of the innate immune system intrinsically linked to energy metabolism. However, the relationship of SP-D gene polymorphisms and gestational diabetes mellitus (GDM) remains unclear. In this study, we analyzed SP-D gene polymorphisms in GDM patients and nondiabetic controls and then determined the association of SP-D gene polymorphisms with GDM. Methods We examined a common genetic polymorphism located in the SP-D coding region (rs721917, Met31Thr) in GDM patients (n = 147) and healthy pregnant controls (n = 97) by using a cleaved amplification polymorphism sequence-tagged sites (PCR–RFLP) technique. The level of SP-D protein in the serum of GDM patients and nondiabetic controls was determined by ELISA. The gene and allele frequencies of SP-D and their association with GDM as well as SP-D protein levels were analyzed and expressed as odds ratios (ORs) with 95% confidence intervals (95% CIs). Results We found that there was a significant association of the SP-D polymorphism (rs721917) with GDM. The SP-D (T/T) genotype was found in 11.6% and 21.6% of GDM patients and matched healthy controls, respectively (odds ratio, 0.473; 95% confidence interval, 0.235–0.952; P = 0.033), indicating that women with the (T/T) genotype had a lower prevalence of GDM (OR = 0.473). Women with the T/C genotype showed an increased risk of GDM (odds ratio, 2.440; 95% confidence interval, 1.162–5.123; P = 0.017). We did not observe corrections between glucose homeostasis markers and SP-D genotypes in women with GDM. Furthermore, serum SP-D levels were higher in GDM patients than in matched healthy controls. Conclusions This study found the first evidence that an SP-D gene polymorphism (rs721917) was associated with GDM, which may provide the basis for further study on how SP-D plays a regulatory role in GDM. Supplementary Information The online version contains supplementary material available at 10.1186/s12884-022-04541-1.
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Affiliation(s)
- Jingwei Xu
- School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009, Zhejiang, China
| | - Yi Chen
- The First People's Hospital of Wenling, Wenling, 317500, Zhejiang, China
| | - Liangfang Tang
- School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009, Zhejiang, China
| | - Xinyuan Teng
- School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009, Zhejiang, China
| | - Lin Feng
- School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009, Zhejiang, China
| | - Ligui Jin
- School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009, Zhejiang, China
| | - Guirong Wang
- Department of Surgery, SUNY Upstate Medical University, UH Room 8715, 750 E Adams St, Syracuse, NY, 13210, USA.
| | - Liquan Wang
- School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009, Zhejiang, China.
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10
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Van Goethem N, Danwang C, Bossuyt N, Van Oyen H, Roosens NHC, Robert A. A systematic review and meta-analysis of host genetic factors associated with influenza severity. BMC Genomics 2021; 22:912. [PMID: 34930124 PMCID: PMC8686082 DOI: 10.1186/s12864-021-08240-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/07/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The severity of influenza disease can range from mild symptoms to severe respiratory failure and can partly be explained by host genetic factors that predisposes the host to severe influenza. Here, we aimed to summarize the current state of evidence that host genetic variants play a role in the susceptibility to severe influenza infection by conducting a systematic review and performing a meta-analysis for all markers with at least three or more data entries. RESULTS A total of 34 primary human genetic association studies were identified that investigated a total of 20 different genes. The only significant pooled ORs were retrieved for the rs12252 polymorphism: an overall OR of 1.52 (95% CI [1.06-2.17]) for the rs12252-C allele compared to the rs12252-T allele. A stratified analysis by ethnicity revealed opposite effects in different populations. CONCLUSION With exception for the rs12252 polymorphism, we could not identify specific genetic polymorphisms to be associated with severe influenza infection in a pooled meta-analysis. This advocates for the use of large, hypothesis-free, genome-wide association studies that account for the polygenic nature and the interactions with other host, pathogen and environmental factors.
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Affiliation(s)
- Nina Van Goethem
- Scientific Directorate of Epidemiology and Public Health, Sciensano, J. Wytsmanstraat 14, 1050 Brussels, Belgium
- Department of Epidemiology and Biostatistics, Institut de Recherche Expérimentale et Clinique, Faculty of Public Health, Université Catholique de Louvain, Clos Chapelle-aux-champs 30, 1200 Brussels, Belgium
| | - Célestin Danwang
- Department of Epidemiology and Biostatistics, Institut de Recherche Expérimentale et Clinique, Faculty of Public Health, Université Catholique de Louvain, Clos Chapelle-aux-champs 30, 1200 Brussels, Belgium
| | - Nathalie Bossuyt
- Scientific Directorate of Epidemiology and Public Health, Sciensano, J. Wytsmanstraat 14, 1050 Brussels, Belgium
| | - Herman Van Oyen
- Scientific Directorate of Epidemiology and Public Health, Sciensano, J. Wytsmanstraat 14, 1050 Brussels, Belgium
- Department of Public Health and Primary Care, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Nancy H. C. Roosens
- Transversal Activities in Applied Genomics, Sciensano, J. Wytsmanstraat 14, 1050 Brussels, Belgium
| | - Annie Robert
- Department of Epidemiology and Biostatistics, Institut de Recherche Expérimentale et Clinique, Faculty of Public Health, Université Catholique de Louvain, Clos Chapelle-aux-champs 30, 1200 Brussels, Belgium
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11
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van Batenburg AA, van Oosterhout MFM, Knoppert SN, Kazemier KM, van der Vis JJ, Grutters JC, Goldschmeding R, van Moorsel CHM. The Extent of Inflammatory Cell Infiltrate and Fibrosis in Lungs of Telomere- and Surfactant-Related Familial Pulmonary Fibrosis. Front Med (Lausanne) 2021; 8:736485. [PMID: 34631753 PMCID: PMC8497799 DOI: 10.3389/fmed.2021.736485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/27/2021] [Indexed: 12/04/2022] Open
Abstract
Familial pulmonary fibrosis (FPF) is a monogenic disease most commonly involving telomere- (TERT) or surfactant- (SFTP) related mutations. These mutations have been shown to alter lymphocytic inflammatory responses, and FPF biopsies with histological lymphocytic infiltrates have been reported. Recently, a model of a surfactant mutation in mice showed that the disease initially started with an inflammatory response followed by fibrogenesis. Since inflammation and fibrogenesis are targeted by different drugs, we investigated whether the degree of these two features co-localize or occur independently in different entities of FPF, and whether they influence survival. We quantified the number of lymphocyte aggregates per surface area, the extent of diffuse lymphocyte cell infiltrate, the number of fibroblast foci per surface area, and the percentage of fibrotic lung surface area in digitally scanned hematoxylin and eosin (H&E) sections of diagnostic surgical biopsies of patients with TERT-related FPF (TERT-PF; n = 17), SFTP-related FPF (SFTP-PF; n = 7), and sporadic idiopathic pulmonary fibrosis (sIPF; n = 10). For comparison, we included biopsies of patients with cellular non-specific interstitial pneumonia (cNSIP; n = 10), an inflammatory interstitial lung disease with high lymphocyte influx and usually responsive to immunosuppressive therapy. The degree of inflammatory cell infiltrate and fibrosis in TERT-PF and SFTP-PF was not significantly different from that in sIPF. In comparison with cNSIP, the extent of lymphocyte infiltrates was significantly lower in sIPF and TERT-PF, but not in SFTP-PF. However, in contrast with cNSIP, in sIPF, TERT-PF, and SFTP-PF, diffuse lymphocyte cell infiltrates were predominantly present and lymphocyte aggregates were only present in fibrotic areas (p < 0.0001). Furthermore, fibroblast foci and percentage of fibrotic lung surface were associated with survival (p = 0.022 and p = 0.018, respectively), while this association was not observed for lymphocyte aggregates or diffuse lymphocytic infiltration. Inflammatory cells in diagnostic lung biopsies of TERT-PF, SFTP-PF, and sIPF were largely confined to fibrotic areas. However, based on inflammation and fibrosis, no differences were found between FPF and sIPF, substantiating the histological similarities between monogenic familial and sporadic disease. Furthermore, the degree of fibrosis, rather than inflammation, correlates with survival, supporting that fibrogenesis is the key feature for therapeutic targeting of FPF.
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Affiliation(s)
- Aernoud A van Batenburg
- Department of Pulmonology, St Antonius ILD Center of Excellence, St Antonius Hospital, Nieuwegein, Netherlands
| | - Matthijs F M van Oosterhout
- Department of Pathology, DNA Pathology, St Antonius ILD Center of Excellence, St Antonius Hospital, Nieuwegein, Netherlands
| | - Sebastiaan N Knoppert
- Department of Pathology, St Antonius ILD Center of Excellence, St Antonius Hospital, Nieuwegein, Netherlands.,Department of Pathology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Karin M Kazemier
- Center of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands.,Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Joanne J van der Vis
- Department of Pulmonology, St Antonius ILD Center of Excellence, St Antonius Hospital, Nieuwegein, Netherlands.,Department of Clinical Chemistry, St Antonius ILD Center of Excellence, St Antonius Hospital, Nieuwegein, Netherlands
| | - Jan C Grutters
- Department of Pulmonology, St Antonius ILD Center of Excellence, St Antonius Hospital, Nieuwegein, Netherlands.,Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Roel Goldschmeding
- Department of Pathology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Coline H M van Moorsel
- Department of Pulmonology, St Antonius ILD Center of Excellence, St Antonius Hospital, Nieuwegein, Netherlands.,Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
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12
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Staller E, Sheppard CM, Baillon L, Frise R, Peacock TP, Sancho-Shimizu V, Barclay WS. A natural variant in ANP32B impairs influenza virus replication in human cells. J Gen Virol 2021; 102. [PMID: 34524075 PMCID: PMC8567425 DOI: 10.1099/jgv.0.001664] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Viruses require host factors to support their replication, and genetic variation in such factors can affect susceptibility to infectious disease. Influenza virus replication in human cells relies on ANP32 proteins, which are involved in assembly of replication-competent dimeric influenza virus polymerase (FluPol) complexes. Here, we investigate naturally occurring single nucleotide variants (SNV) in the human Anp32A and Anp32B genes. We note that variant rs182096718 in Anp32B is found at a higher frequency than other variants in either gene. This SNV results in a D130A substitution in ANP32B, which is less able to support FluPol activity than wild-type ANP32B and binds FluPol with lower affinity. Interestingly, ANP32B-D130A exerts a dominant negative effect over wild-type ANP32B and interferes with the functionally redundant paralogue ANP32A. FluPol activity and virus replication are attenuated in CRISPR-edited cells expressing wild-type ANP32A and mutant ANP32B-D130A. We propose a model in which the D130A mutation impairs FluPol dimer formation, thus resulting in compromised replication. We suggest that both homozygous and heterozygous carriers of rs182096718 may have some genetic protection against influenza viruses.
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Affiliation(s)
- Ecco Staller
- Department of Infectious Disease, Faculty of Medicine, Imperial College London, UK.,Present address: Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Carol M Sheppard
- Department of Infectious Disease, Faculty of Medicine, Imperial College London, UK
| | - Laury Baillon
- Department of Infectious Disease, Faculty of Medicine, Imperial College London, UK
| | - Rebecca Frise
- Department of Infectious Disease, Faculty of Medicine, Imperial College London, UK
| | - Thomas P Peacock
- Department of Infectious Disease, Faculty of Medicine, Imperial College London, UK
| | | | - Wendy S Barclay
- Department of Infectious Disease, Faculty of Medicine, Imperial College London, UK
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13
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Floros J, Thorenoor N, Tsotakos N, Phelps DS. Human Surfactant Protein SP-A1 and SP-A2 Variants Differentially Affect the Alveolar Microenvironment, Surfactant Structure, Regulation and Function of the Alveolar Macrophage, and Animal and Human Survival Under Various Conditions. Front Immunol 2021; 12:681639. [PMID: 34484180 PMCID: PMC8415824 DOI: 10.3389/fimmu.2021.681639] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/02/2021] [Indexed: 12/12/2022] Open
Abstract
The human innate host defense molecules, SP-A1 and SP-A2 variants, differentially affect survival after infection in mice and in lung transplant patients. SP-A interacts with the sentinel innate immune cell in the alveolus, the alveolar macrophage (AM), and modulates its function and regulation. SP-A also plays a role in pulmonary surfactant-related aspects, including surfactant structure and reorganization. For most (if not all) pulmonary diseases there is a dysregulation of host defense and inflammatory processes and/or surfactant dysfunction or deficiency. Because SP-A plays a role in both of these general processes where one or both may become aberrant in pulmonary disease, SP-A stands to be an important molecule in health and disease. In humans (unlike in rodents) SP-A is encoded by two genes (SFTPA1 and SFTPA2) and each has been identified with extensive genetic and epigenetic complexity. In this review, we focus on functional, structural, and regulatory differences between the two SP-A gene-specific products, SP-A1 and SP-A2, and among their corresponding variants. We discuss the differential impact of these variants on the surfactant structure, the alveolar microenvironment, the regulation of epithelial type II miRNome, the regulation and function of the AM, the overall survival of the organism after infection, and others. Although there have been a number of reviews on SP-A, this is the first review that provides such a comprehensive account of the differences between human SP-A1 and SP-A2.
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Affiliation(s)
- Joanna Floros
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, United States.,Department of Obstetrics & Gynecology, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Nithyananda Thorenoor
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, United States.,Department of Biochemistry & Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Nikolaos Tsotakos
- School of Science, Engineering, and Technology, The Pennsylvania State University, Harrisburg, PA, United States
| | - David S Phelps
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, United States
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14
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Abstract
Several viruses target the human respiratory tract, causing different clinical manifestations spanning from mild upper airway involvement to life-threatening acute respiratory distress syndrome (ARDS). As dramatically evident in the ongoing SARS-CoV-2 pandemic, the clinical picture is not always easily predictable due to the combined effect of direct viral and indirect patient-specific immune-mediated damage. In this review, we discuss the main RNA (orthomyxoviruses, paramyxoviruses, and coronaviruses) and DNA (adenoviruses, herpesviruses, and bocaviruses) viruses with respiratory tropism and their mechanisms of direct and indirect cell damage. We analyze the thin line existing between a protective immune response, capable of limiting viral replication, and an unbalanced, dysregulated immune activation often leading to the most severe complication. Our comprehension of the molecular mechanisms involved is increasing and this should pave the way for the development and clinical use of new tailored immune-based antiviral strategies.
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Affiliation(s)
- Nicola Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Sreya Ghosh
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Boston, Massachusetts, USA
| | - Maria De Santis
- Department of Rheumatology and Clinical Immunology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
| | - Matteo Castelli
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Elena Criscuolo
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Ivan Zanoni
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Boston, Massachusetts, USA
- Harvard Medical School, Boston Children's Hospital, Division of Gastroenterology, Boston, Massachusetts, USA
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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15
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Yin X, Wang B, Yan Z, Hu L, Zhang X. Association between SP-A rs1965708 gene polymorphism and allergic rhinitis risk in Chinese population. J Clin Lab Anal 2021; 35:e23828. [PMID: 34028080 PMCID: PMC8274983 DOI: 10.1002/jcla.23828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/24/2021] [Accepted: 05/03/2021] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Pulmonary surfactant protein A (SP-A) in the respiratory tract plays an important role in host. In the present, we assessed the association between SP-A gene polymorphism and allergic rhinitis. METHODS Using a case-control design, we compared the genotype frequencies of SP-A rs1965708 between allergic rhinitis patients and healthy control group. Genotyping was performed using real-time quantitative PCR-based molecular identification methods. Univariate and multivariate logistic regression were performed to quantitatively assess the association between rs1965708 polymorphism and allergic rhinitis, and the odds ratio (OR) and 95% confidence interval (CI) were also calculated. RESULTS 500 patients with allergic rhinitis and 500 healthy controls were included in the study. Compared with the CC genotype, we found that AA genotype of rs1965708 could increase the allergic rhinitis risk in the univariate analysis (OR = 2.63, 95% CI: 1.56-4.54, p = 0.000). For dominant model, we found no significant difference in the dominant model (OR = 1.14, 95% CI: 0.86-1.52, p = 0.367). In the recessive model, the CC genotype could elevate the risk of allergic rhinitis compared with CC + AA genotype (OR = 2.70, 95% CI: 1.61-4.54, p = 0.000). Similar results were also found in the allele model (OR = 1.28, 95% CI: 1.07-1.54, p = 0.008). Interactions between rs1965708 AA or AC and smoking increased the allergic rhinitis risk. CONCLUSIONS The rs1965708 variants of SP-A gene polymorphism are associated with allergic rhinitis, and the A allele could increase the allergic rhinitis risk. The AA SNP variants that interact with smoking may alter the susceptibility to allergic rhinitis.
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Affiliation(s)
- Xinghong Yin
- Department of Otolaryngology-Head & Neck Surgery, Fuyang People's Hospital, Fuyang, China
| | - Bo Wang
- Department of Otolaryngology-Head & Neck Surgery, Fuyang People's Hospital, Fuyang, China
| | - Zhiqiang Yan
- Department of Otolaryngology-Head & Neck Surgery, Fuyang People's Hospital, Fuyang, China
| | - Lulu Hu
- Department of Otolaryngology-Head & Neck Surgery, Fuyang People's Hospital, Fuyang, China
| | - Xinhai Zhang
- Department of Otolaryngology-Head & Neck Surgery, Fuyang People's Hospital, Fuyang, China
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16
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Klein S, Wimmer BH, Winter SL, Kolovou A, Laketa V, Chlanda P. Post-correlation on-lamella cryo-CLEM reveals the membrane architecture of lamellar bodies. Commun Biol 2021; 4:137. [PMID: 33514845 DOI: 10.1038/s42003-020-01567-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 12/04/2020] [Indexed: 11/12/2022] Open
Abstract
Lamellar bodies (LBs) are surfactant-rich organelles in alveolar cells. LBs disassemble into a lipid-protein network that reduces surface tension and facilitates gas exchange in the alveolar cavity. Current knowledge of LB architecture is predominantly based on electron microscopy studies using disruptive sample preparation methods. We established and validated a post-correlation on-lamella cryo-correlative light and electron microscopy approach for cryo-FIB milled cells to structurally characterize and validate the identity of LBs in their unperturbed state. Using deconvolution and 3D image registration, we were able to identify fluorescently labeled membrane structures analyzed by cryo-electron tomography. In situ cryo-electron tomography of A549 cells as well as primary Human Small Airway Epithelial Cells revealed that LBs are composed of membrane sheets frequently attached to the limiting membrane through “T”-junctions. We report a so far undescribed outer membrane dome protein complex (OMDP) on the limiting membrane of LBs. Our data suggest that LB biogenesis is driven by parallel membrane sheet import and by the curvature of the limiting membrane to maximize lipid storage capacity. Using the post-correlation on-lamella cryo-CLEM workflow, Klein, Wimmer et al. show that lamellar bodies (LBs) are composed of membrane sheets frequently attached to the limiting membrane through T-junctions in ABCA3 overexpressing cells and in primary human small airway epithelial cells. This study provides insights into LB biogenesis and membrane packing inside the LB.
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17
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Amatya S, Ye M, Yang L, Gandhi CK, Wu R, Nagourney B, Floros J. Single Nucleotide Polymorphisms Interactions of the Surfactant Protein Genes Associated With Respiratory Distress Syndrome Susceptibility in Preterm Infants. Front Pediatr 2021; 9:682160. [PMID: 34671583 PMCID: PMC8521105 DOI: 10.3389/fped.2021.682160] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 09/06/2021] [Indexed: 11/14/2022] Open
Abstract
Background: Neonatal respiratory distress syndrome (RDS), due to surfactant deficiency in preterm infants, is the most common cause of respiratory morbidity. The surfactant proteins (SFTP) genetic variants have been well-studied in association with RDS; however, the impact of SNP-SNP (single nucleotide polymorphism) interactions on RDS has not been addressed. Therefore, this study utilizes a newer statistical model to determine the association of SFTP single SNP model and SNP-SNP interactions in a two and a three SNP interaction model with RDS susceptibility. Methods: This study used available genotype and clinical data in the Floros biobank at Penn State University. The patients consisted of 848 preterm infants, born <36 weeks of gestation, with 477 infants with RDS and 458 infants without RDS. Seventeen well-studied SFTPA1, SFTPA2, SFTPB, SFTPC, and SFTPD SNPs were investigated. Wang's statistical model was employed to test and identify significant associations in a case-control study. Results: Only the rs17886395 (C allele) of the SFTPA2 was associated with protection for RDS in a single-SNP model (Odd's Ratio 0.16, 95% CI 0.06-0.43, adjusted p = 0.03). The highest number of interactions (n = 27) in the three SNP interactions were among SFTPA1 and SFTPA2. The three SNP models showed intergenic and intragenic interactions among all SFTP SNPs except SFTPC. Conclusion: The single SNP model and SNP interactions using the two and three SNP interactions models identified SFTP-SNP associations with RDS. However, the large number of significant associations containing SFTPA1 and/or SFTPA2 SNPs point to the importance of SFTPA1 and SFTPA2 in RDS susceptibility.
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Affiliation(s)
- Shaili Amatya
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Meixia Ye
- Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Lili Yang
- School of First Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chintan K Gandhi
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Rongling Wu
- Public Health Science, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Beth Nagourney
- Albert Einstein College of Medicine, New York, NY, United States
| | - Joanna Floros
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Obstetrics and Gynecology, Pennsylvania State University College of Medicine, Hershey, PA, United States
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18
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White MR, Hsieh IN, De Luna X, Hartshorn KL. Effects of serum amyloid protein A on influenza A virus replication and viral interactions with neutrophils. J Leukoc Biol 2020; 110:155-166. [PMID: 33205458 PMCID: PMC7753654 DOI: 10.1002/jlb.4ab0220-116rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 10/13/2020] [Accepted: 10/26/2020] [Indexed: 01/22/2023] Open
Abstract
Innate immunity is vital for the early control of influenza A virus (IAV) infection. Serum amyloid A (SAA1) is an acute phase reactant produced in the liver and lung that rises dramatically during IAV infection. The potential role of SAA1 in host defense against IAV is unknown. SAA1 has been reported to directly activate neutrophils and to recruit them to the lung during infectious and inflammatory processes. Neutrophils are the most abundant cell recruited to the lung in the early phase of IAV infection. There are different forms and preparations of SAA1 that have found to have different effects on phagocyte responses, through various receptors. In this paper, we test the direct effects of various preparations of serum derived or recombinant SAA on IAV and how it modulates the interactions of IAV with neutrophils. All SAA preparations bound to IAV in vitro but caused minimal hemagglutination inhibition or viral aggregation. The human serum‐derived SAA1 or the complex of SAA1 with HDL did have IAV neutralizing activity in vitro, whereas the recombinant SAA1 preparations did not. We found that different SAA preparations also had markedly different effects on neutrophil functions, with E. coli‐derived SAA1 triggering some responses in neutrophils on its own or in presence of IAV whereas mammalian cell‐derived SAA1 did not. This discrepancy could be explained by the reported contamination of the former preparation with bacterial components. Of interest, however, serum SAA alone, serum SAA complexed with HDL, or HDL alone potentiated some neutrophil responses to IAV. Our results suggest that SAA may play some role in host response to IAV, but further work needs to be done to clarify the role of different variants of SAA alone or complexed with HDL.
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Affiliation(s)
- Mitchell R White
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - I-Ni Hsieh
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Xavier De Luna
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Kevan L Hartshorn
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
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19
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Abstract
There is abundant evidence that the innate immune response to influenza A virus (IAV) is highly complex and plays a key role in protection against IAV induced infection and illness. Unfortunately it also clear that aspects of innate immunity can lead to severe morbidity or mortality from IAV, including inflammatory lung injury, bacterial superinfection, and exacerbation of reactive airways disease. We review broadly the virus and host factors that result in adverse outcomes from IAV and show evidence that inflammatory responses can become damaging even apart from changes in viral replication per se, with special focus on the positive and adverse effects of neutrophils and monocytes. We then evaluate in detail the role of soluble innate inhibitors including surfactant protein D and antimicrobial peptides that have a potential dual capacity for down-regulating viral replication and also inhibiting excessive inflammatory responses and how these innate host factors could possibly be harnessed to treat IAV infection. Where appropriate we draw comparisons and contrasts the SARS-CoV viruses and IAV in an effort to point out where the extensive knowledge existing regarding severe IAV infection could help guide research into severe COVID 19 illness or vice versa.
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Affiliation(s)
- Kevan L Hartshorn
- Section of Hematology Oncology, Boston University School of Medicine, Boston, MA, United States
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20
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Carlsen HK, Nyberg F, Torén K, Segersson D, Olin AC. Exposure to traffic-related particle matter and effects on lung function and potential interactions in a cross-sectional analysis of a cohort study in west Sweden. BMJ Open 2020; 10:e034136. [PMID: 33077557 PMCID: PMC7574932 DOI: 10.1136/bmjopen-2019-034136] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES To investigate the long-term effects of source-specific particle matter (PM) on lung function, effects of Surfactant Protein A (SP-A) and glutathione S-transferase (GST) genes GSTP1 and GSTT1 gene variants and effect modification by single-nucleotide polymorphism (SNP) genotype. DESIGN Cohort study with address-based annual PM exposure assigned from annual estimates of size (PM10, PM2.5 and PMBC) and source-specific (traffic, industry, marine traffic and wood burning) dispersion modelling. SETTING Gothenburg, Sweden. PARTICIPANTS The ADult-Onset asthma and NItric oXide Study had 6685 participants recruited from the general population, of which 5216 (78%) were included in the current study with information on all variables of interest. Mean age at the time of enrolment was 51.4 years (range 24-76) and 2427 (46.5%) were men. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome was forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1). Secondary outcome measures were effects and gene-environment interactions of SP-A and GSTT1 and GSTP1 genotypes. RESULTS Exposure to traffic-related PM10 and PM2.5 was associated with decreases in percent-predicted (% predicted) FEV1 by -0.48% (95% CI -0.89% to -0.07%) and -0.47% (95% CI -0.88% to -0.07%) per IQR 3.05 and 2.47 µg/m3, respectively, and with decreases in % predicted FVC by -0.46% (95% CI -0.83% to -0.08%) and -0.47% (95% CI -0.83% to -0.10%). Total and traffic-related PMBC was strongly associated with both FEV1 and FVC by -0.53 (95% CI -0.94 to -0.13%) and -0.43% (95% CI -0.77 to -0.09%) per IQR, respectively, for FVC, and similarly for FEV1. Minor allele carrier status for two GSTP1 SNPs and the GSTT1 null genotype were associated with decreases in % predicted lung function. Three SP-A SNPs showed effect modification with exposure to PM2.5 from industry and marine traffic. CONCLUSIONS PM exposure, specifically traffic related, was associated with FVC and FEV1 reductions and not modified by genotype. Genetic effect modification was suggested for industry and marine traffic PM2.5.
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Affiliation(s)
- Hanne Krage Carlsen
- Occupational and Environmental Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Fredrik Nyberg
- Occupational and Environmental Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Register Epidemiology, School of Public Health and Community Medicine, Sahlgrenska Academy, Gothenburg, Sweden
| | - Kjell Torén
- Occupational and Environmental Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - David Segersson
- Swedish Meteorological and Hydrological Institute, Norrkoping, Sweden
| | - Anna-Carin Olin
- Occupational and Environmental Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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21
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Misra RS, Nayak JL. The Importance of Vaccinating Children and Pregnant Women against Influenza Virus Infection. Pathogens 2019; 8:pathogens8040265. [PMID: 31779153 PMCID: PMC6963306 DOI: 10.3390/pathogens8040265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 12/21/2022] Open
Abstract
Influenza virus infection is responsible for significant morbidity and mortality in the pediatric and pregnant women populations, with deaths frequently caused by severe influenza-associated lower respiratory tract infection and acute respiratory distress syndrome (ARDS). An appropriate immune response requires controlling the viral infection through activation of antiviral defenses, which involves cells of the lung and immune system. High levels of viral infection or high levels of inflammation in the lower airways can contribute to ARDS. Pregnant women and young children, especially those born prematurely, may develop serious complications if infected with influenza virus. Vaccination against influenza will lead to lower infection rates and fewer complications, even if the vaccine is poorly matched to circulating viral strains, with maternal vaccination offering infants protection via antibody transmission through the placenta and breast milk. Despite the health benefits of the influenza vaccine, vaccination rates around the world remain well below targets. Trust in the use of vaccines among the public must be restored in order to increase vaccination rates and decrease the public health burden of influenza.
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Affiliation(s)
- Ravi S Misra
- Department of Pediatrics Division of Neonatology, The University of Rochester Medical Center, Rochester, NY 14623, USA
- Correspondence:
| | - Jennifer L Nayak
- Department of Pediatrics Division of Pediatric Infectious Diseases, The University of Rochester Medical Center, Rochester, NY 14623, USA;
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22
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Gounder AP, Boon ACM. Influenza Pathogenesis: The Effect of Host Factors on Severity of Disease. J Immunol 2019; 202:341-350. [PMID: 30617115 DOI: 10.4049/jimmunol.1801010] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/10/2018] [Indexed: 12/11/2022]
Abstract
Influenza viruses continue to be a major global health threat. Severity and clinical outcome of influenza disease is determined by both viral and host factors. Viral factors have long been the subject of intense research and many molecular determinants have been identified. However, research into the host factors that protect or predispose to severe and fatal influenza A virus infections is lagging. The goal of this review is to highlight the recent insights into host determinants of influenza pathogenesis.
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Affiliation(s)
- Anshu P Gounder
- Department of Internal Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO 63110.,Department of Molecular Microbiology and Microbial Pathogenesis, Washington University School of Medicine in St. Louis, St. Louis, MO 63110; and
| | - Adrianus C M Boon
- Department of Internal Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO 63110; .,Department of Molecular Microbiology and Microbial Pathogenesis, Washington University School of Medicine in St. Louis, St. Louis, MO 63110; and.,Department of Pathology and Immunology, Washington University School of Medicine in St. Louis, St. Louis, MO 63110
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23
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Nogales A, L DeDiego M. Host Single Nucleotide Polymorphisms Modulating Influenza A Virus Disease in Humans. Pathogens 2019; 8:E168. [PMID: 31574965 DOI: 10.3390/pathogens8040168] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 09/27/2019] [Accepted: 09/28/2019] [Indexed: 12/14/2022] Open
Abstract
A large number of human genes associated with viral infections contain single nucleotide polymorphisms (SNPs), which represent a genetic variation caused by the change of a single nucleotide in the DNA sequence. SNPs are located in coding or non-coding genomic regions and can affect gene expression or protein function by different mechanisms. Furthermore, they have been linked to multiple human diseases, highlighting their medical relevance. Therefore, the identification and analysis of this kind of polymorphisms in the human genome has gained high importance in the research community, and an increasing number of studies have been published during the last years. As a consequence of this exhaustive exploration, an association between the presence of some specific SNPs and the susceptibility or severity of many infectious diseases in some risk population groups has been found. In this review, we discuss the relevance of SNPs that are important to understand the pathology derived from influenza A virus (IAV) infections in humans and the susceptibility of some individuals to suffer more severe symptoms. We also discuss the importance of SNPs for IAV vaccine effectiveness.
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24
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Abstract
Most people exposed to a new flu virus do not notice any symptoms. A small minority develops critical illness. Some of this extremely broad variation in susceptibility is explained by the size of the initial inoculum or the influenza exposure history of the individual; some is explained by generic host factors, such as frailty, that decrease resilience following any systemic insult. Some demographic factors (pregnancy, obesity, and advanced age) appear to confer a more specific susceptibility to severe illness following infection with influenza viruses. As with other infectious diseases, a substantial component of susceptibility is determined by host genetics. Several genetic susceptibility variants have now been reported with varying levels of evidence. Susceptible hosts may have impaired intracellular controls of viral replication (e.g. IFITM3, TMPRS22 variants), defective interferon responses (e.g. GLDC, IRF7/9 variants), or defects in cell-mediated immunity with increased baseline levels of systemic inflammation (obesity, pregnancy, advanced age). These mechanisms may explain the prolonged viral replication reported in critically ill patients with influenza: patients with life-threatening disease are, by definition, abnormal hosts. Understanding these molecular mechanisms of susceptibility may in the future enable the design of host-directed therapies to promote resilience.
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Affiliation(s)
- Sara Clohisey
- Division of Genetics and Genomics, Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh, EH25 9RG, UK
| | - John Kenneth Baillie
- Division of Genetics and Genomics, Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh, EH25 9RG, UK. .,Intensive Care Unit, Royal Infirmary of Edinburgh, 54 Little France Drive, Edinburgh, EH16 5SA, UK.
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25
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Thomsen MM, Jørgensen SE, Gad HH, Storgaard M, Gjedsted J, Christiansen M, Hartmann R, Mogensen TH. Defective interferon priming and impaired antiviral responses in a patient with an IRF7 variant and severe influenza. Med Microbiol Immunol 2019; 208:869-876. [PMID: 31172279 DOI: 10.1007/s00430-019-00623-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 05/25/2019] [Indexed: 12/19/2022]
Abstract
Influenza infection is common worldwide with many individuals affected each year during epidemics and occasionally pandemics. Previous studies in animal models and a few human cases have established an important role of innate type I and III interferon (IFN) for viral elimination and mounting of antiviral responses. However, genetic and immunological determinants of very severe disseminated influenza virus infection in humans remain incompletely understood. Here, we describe an adult patient with severe influenza virus A (IAV) infection, in whom we identified a rare variant E331V in IFN regulatory factor (IRF)7 by whole-exome sequencing. Examination of patient cells demonstrated a cellular phenotype suggesting functional IRF7 impairment, since priming with IFN was almost abolished and IFN responses to IAV were significantly impaired in patient cells. Moreover, IAV replication was significantly higher in patient cells than in controls. Finally, expression of IRF7 E331V in HEK293 cells demonstrated significantly reduced activation of both IFNA7 and IFNB promoters in a luciferase reporter gene expression assay compared to IRF7 wild type. These findings provide further support for the essential role of IRF7 in amplifying antiviral IFN responses to ensure potent and sustained IFN responses during influenza virus infection in humans.
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Affiliation(s)
- Michelle M Thomsen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
- Department of Biomedicine, Aarhus University, CF Møllers Alle 6, 8000, Aarhus C, Denmark
| | - Sofie E Jørgensen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
- Department of Biomedicine, Aarhus University, CF Møllers Alle 6, 8000, Aarhus C, Denmark
| | - Hans Henrik Gad
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000, Aarhus C, Denmark
| | - Merete Storgaard
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Jakob Gjedsted
- Department of Intensive Care, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Mette Christiansen
- Department of Clinical Immunology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Rune Hartmann
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000, Aarhus C, Denmark
| | - Trine H Mogensen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.
- Department of Biomedicine, Aarhus University, CF Møllers Alle 6, 8000, Aarhus C, Denmark.
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark.
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26
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Levy ER, Yip WK, Super M, Ferdinands JM, Mistry AJ, Newhams MM, Zhang Y, Su HC, McLaughlin GE, Sapru A, Loftis LL, Weiss SL, Hall MW, Cvijanovich N, Schwarz A, Tarquinio KM, Mourani PM, Randolph AG. Evaluation of Mannose Binding Lectin Gene Variants in Pediatric Influenza Virus-Related Critical Illness. Front Immunol 2019; 10:1005. [PMID: 31139182 PMCID: PMC6518443 DOI: 10.3389/fimmu.2019.01005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 04/18/2019] [Indexed: 01/08/2023] Open
Abstract
Background: Mannose-binding lectin (MBL) is an innate immune protein with strong biologic plausibility for protecting against influenza virus-related sepsis and bacterial co-infection. In an autopsy cohort of 105 influenza-infected young people, carriage of the deleterious MBL gene MBL2_Gly54Asp(“B”) mutation was identified in 5 of 8 individuals that died from influenza-methicillin-resistant Staphylococcus aureus (MRSA) co-infection. We evaluated MBL2 variants known to influence MBL levels with pediatric influenza-related critical illness susceptibility and/or severity including with bacterial co-infections. Methods: We enrolled children and adolescents with laboratory-confirmed influenza infection across 38 pediatric intensive care units from November 2008 to June 2016. We sequenced MBL2 “low-producer” variants rs11003125(“H/L”), rs7096206(“Y/X”), rs1800450Gly54Asp(“B”), rs1800451Gly57Glu(“C”), rs5030737Arg52Cys(“D”) in patients and biologic parents. We measured serum levels and compared complement activity in low-producing homozygotes (“B/B,” “C/C”) to HYA/HYA controls. We used a population control of 1,142 healthy children and also analyzed family trios (PBAT/HBAT) to evaluate disease susceptibility, and nested case-control analyses to evaluate severity. Results: We genotyped 420 patients with confirmed influenza-related sepsis: 159 (38%) had acute lung injury (ALI), 165 (39%) septic shock, and 30 (7%) died. Although bacterial co-infection was diagnosed in 133 patients (32%), only MRSA co-infection (n = 33, 8% overall) was associated with death (p < 0.0001), present in 11 of 30 children that died (37%). MBL2 variants predicted serum levels and complement activation as expected. We found no association between influenza-related critical illness susceptibility and MBL2 variants using family trios (633 biologic parents) or compared to population controls. MBL2 variants were not associated with admission illness severity, septic shock, ALI, or bacterial co-infection diagnosis. Carriage of low-MBL producing MBL2 variants was not a risk factor for mortality, but children that died did have higher carriage of one or more B alleles (OR 2.3; p = 0.007), including 7 of 11 with influenza MRSA-related death (vs. 2 of 22 survivors: OR 14.5, p = 0.0002). Conclusions:MBL2 variants that decrease MBL levels were not associated with susceptibility to pediatric influenza-related critical illness or with multiple measures of critical illness severity. We confirmed a prior report of higher B allele carriage in a relatively small number of young individuals with influenza-MRSA associated death.
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Affiliation(s)
- Emily R Levy
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital and Department of Anaesthesia, Harvard Medical School, Boston, MA, United States.,Divisions of Pediatric Critical Care and Pediatric Infectious Diseases, Department of Pediatrics, Mayo Clinic, Rochester, MN, United States
| | - Wai-Ki Yip
- Foundation Medicine Inc., Cambridge, MA, United States
| | - Michael Super
- Wyss Institute at Harvard University, Boston, MA, United States
| | - Jill M Ferdinands
- Influenza Division, US Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Anushay J Mistry
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital and Department of Anaesthesia, Harvard Medical School, Boston, MA, United States
| | - Margaret M Newhams
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital and Department of Anaesthesia, Harvard Medical School, Boston, MA, United States
| | - Yu Zhang
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Helen C Su
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Gwenn E McLaughlin
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Anil Sapru
- Critical Care Medicine Division, Department of Pediatrics, Children's Hospital of Los Angeles, University of California, Los Angeles, Los Angeles, CA, United States
| | - Laura L Loftis
- Section of Critical Care Medicine, Department of Pediatrics, Texas Children's Hospital, Houston, TX, United States
| | - Scott L Weiss
- Department of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Mark W Hall
- Division of Critical Care Medicine, Department of Pediatrics, Nationwide Children's Hospital, Columbus, OH, United States
| | - Natalie Cvijanovich
- Department of Pediatrics, Benioff Children's Hospital Oakland, University California San Francisco, Oakland, CA, United States
| | - Adam Schwarz
- Department of Pediatrics, Children's Hospital of Orange County, Orange, CA, United States
| | - Keiko M Tarquinio
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Children's Healthcare of Atlanta at Egleston, Emory University School of Medicine, Atlanta, GA, United States
| | - Peter M Mourani
- Section of Critical Care Medicine, Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, United States
| | | | - Adrienne G Randolph
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital and Department of Anaesthesia, Harvard Medical School, Boston, MA, United States.,Department of Pediatrics, Harvard Medical School, Boston, MA, United States
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27
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Wellington D, Laurenson-Schafer H, Abdel-Haq A, Dong T. IFITM3: How genetics influence influenza infection demographically. Biomed J 2019; 42:19-26. [PMID: 30987701 PMCID: PMC6468115 DOI: 10.1016/j.bj.2019.01.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/06/2018] [Accepted: 01/07/2019] [Indexed: 12/18/2022] Open
Abstract
The role of host genetics in influenza infection is unclear despite decades of interest. Confounding factors such as age, sex, ethnicity and environmental factors have made it difficult to assess the role of genetics without influence. In recent years a single nucleotide polymorphism, interferon-induced transmembrane protein 3 (IFITM3) rs12252, has been shown to alter the severity of influenza infection in Asian populations. In this review we investigate this polymorphism as well as several others suggested to alter the host's defence against influenza infection. In addition, we highlight the open questions surrounding the viral restriction protein IFITM3 with the hope that by answering some of these questions we can elucidate the mechanism of IFITM3 viral restriction and therefore how this restriction is altered due to the rs12252 polymorphism.
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Affiliation(s)
- Dannielle Wellington
- MRC Human Immunology Unit, WIMM, University of Oxford, OX3 9DS, UK; CAMS Oxford Institute, Nuffield Department of Medicine, Oxford University, OX3 9FZ, UK.
| | - Henry Laurenson-Schafer
- MRC Human Immunology Unit, WIMM, University of Oxford, OX3 9DS, UK; CAMS Oxford Institute, Nuffield Department of Medicine, Oxford University, OX3 9FZ, UK
| | - Adi Abdel-Haq
- MRC Human Immunology Unit, WIMM, University of Oxford, OX3 9DS, UK; Martin-Luther-University, Halle-Wittenberg, Germany
| | - Tao Dong
- MRC Human Immunology Unit, WIMM, University of Oxford, OX3 9DS, UK; CAMS Oxford Institute, Nuffield Department of Medicine, Oxford University, OX3 9FZ, UK.
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28
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Lin Z, Thorenoor N, Wu R, DiAngelo SL, Ye M, Thomas NJ, Liao X, Lin TR, Warren S, Floros J. Genetic Association of Pulmonary Surfactant Protein Genes, SFTPA1, SFTPA2, SFTPB, SFTPC, and SFTPD With Cystic Fibrosis. Front Immunol 2018; 9:2256. [PMID: 30333828 PMCID: PMC6175982 DOI: 10.3389/fimmu.2018.02256] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/11/2018] [Indexed: 01/03/2023] Open
Abstract
Surfactant proteins (SP) are involved in surfactant function and innate immunity in the human lung. Both lung function and innate immunity are altered in CF, and altered SP levels and genetic association are observed in Cystic Fibrosis (CF). We hypothesized that single nucleotide polymorphisms (SNPs) within the SP genes associate with CF or severity subgroups, either through single SNP or via SNP-SNP interactions between two SNPs of a given gene (intragenic) and/or between two genes (intergenic). We genotyped a total of 17 SP SNPs from 72 case-trio pedigree (SFTPA1 (5), SFTPA2 (4), SFTPB (4), SFTPC (2), and SFTPD (2)), and identified SP SNP associations by applying quantitative genetic principles. The results showed (a) Two SNPs, SFTPB rs7316 (p = 0.0083) and SFTPC rs1124 (p = 0.0154), each associated with CF. (b) Three intragenic SNP-SNP interactions, SFTPB (rs2077079, rs3024798), and SFTPA1 (rs1136451, rs1059057 and rs4253527), associated with CF. (c) A total of 34 intergenic SNP-SNP interactions among the 4 SP genes to be associated with CF. (d) No SNP-SNP interaction was observed between SFTPA1 or SFTPA2 and SFTPD. (e) Equal number of SNP-SNP interactions were observed between SFTPB and SFTPA1/SFTPA2 (n = 7) and SP-B and SFTPD (n = 7). (f) SFTPC exhibited significant SNP-SNP interactions with SFTPA1/SFTPA2 (n = 11), SFTPB (n = 4) and SFTPD (n = 3). (g) A single SFTPB SNP was associated with mild CF after Bonferroni correction, and several intergenic interactions that are associated (p < 0.01) with either mild or moderate/severe CF were observed. These collectively indicate that complex SNP-SNP interactions of the SP genes may contribute to the pulmonary disease in CF patients. We speculate that SPs may serve as modifiers for the varied progression of pulmonary disease in CF and/or its severity.
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Affiliation(s)
- Zhenwu Lin
- Department of Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - Nithyananda Thorenoor
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University, Hershey, PA, United States
| | - Rongling Wu
- Public Health Science, College of Medicine, Pennsylvania State University, Hershey, PA, United States
| | - Susan L DiAngelo
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University, Hershey, PA, United States
| | - Meixia Ye
- Public Health Science, College of Medicine, Pennsylvania State University, Hershey, PA, United States.,Center for Computational Biology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Neal J Thomas
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University, Hershey, PA, United States
| | - Xiaojie Liao
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University, Hershey, PA, United States
| | - Tony R Lin
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University, Hershey, PA, United States
| | - Stuart Warren
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University, Hershey, PA, United States
| | - Joanna Floros
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Pennsylvania State University, Hershey, PA, United States.,Obstetrics and Gynecology, Pennsylvania State University College of Medicine, Hershey, PA, United States
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29
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Abstract
The respiratory epithelium is the major interface between the environment and the host. Sophisticated barrier, sensing, anti-microbial and immune regulatory mechanisms have evolved to help maintain homeostasis and to defend the lung against foreign substances and pathogens. During influenza virus infection, these specialised structural cells and populations of resident immune cells come together to mount the first response to the virus, one which would play a significant role in the immediate and long term outcome of the infection. In this review, we focus on the immune defence machinery of the respiratory epithelium and briefly explore how it repairs and regenerates after infection.
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Affiliation(s)
- Laura Denney
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Ling-Pei Ho
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK.
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30
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Hsieh IN, De Luna X, White MR, Hartshorn KL. The Role and Molecular Mechanism of Action of Surfactant Protein D in Innate Host Defense Against Influenza A Virus. Front Immunol 2018; 9:1368. [PMID: 29951070 PMCID: PMC6008380 DOI: 10.3389/fimmu.2018.01368] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/01/2018] [Indexed: 12/16/2022] Open
Abstract
Influenza A viruses (IAVs) continue to pose major risks of morbidity and mortality during yearly epidemics and periodic pandemics. The genomic instability of IAV allows it to evade adaptive immune responses developed during prior infection. Of particular concern are pandemics which result from wholesale incorporation of viral genome sections from animal sources. These pandemic strains are radically different from circulating human strains and pose great risk for the human population. For these reasons, innate immunity plays a strong role in the initial containment of IAV infection. Soluble inhibitors present in respiratory lining fluids and blood provide a level of early protection against IAV. In general, these inhibitors act by binding to the viral hemagglutinin (HA). Surfactant protein D (SP-D) and mannose-binding lectin (MBL) attach to mannosylated glycans on the HA in a calcium dependent manner. In contrast, surfactant protein A, ficolins, and other inhibitors present sialic acid rich ligands to which the HA can bind. Among these inhibitors, SP-D seems to be the most potent due to its specific mode of binding to viral carbohydrates and its ability to strongly aggregate viral particles. We have studied specific properties of the N-terminal and collagen domain of SP-D that enable formation of highly multimerized molecules and cooperative binding among the multiple trimeric lectin domains in the protein. In addition, we have studied in depth the lectin activity of SP-D through expression of isolated lectin domains and targeted mutations of the SP-D lectin binding site. Through modifying specific residues around the saccharide binding pocket, antiviral activity of isolated lectin domains of SP-D can be markedly increased for seasonal strains of IAV. Wild-type SP-D causes little inhibition of pandemic IAV, but mutated versions of SP-D were able to inhibit pandemic IAV through enhanced binding to the reduced number of mannosylated glycans present on the HA of these strains. Through collaborative studies involving crystallography of isolated lectin domains of SP-D, glycomics analysis of the HA, and molecular modeling, the mechanism of binding of wild type and mutant forms of SP-D have been determined. These studies could guide investigation of the interactions of SP-D with other pathogens.
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Affiliation(s)
- I-Ni Hsieh
- Boston University School of Medicine, Boston, MA, United States
| | - Xavier De Luna
- Boston University School of Medicine, Boston, MA, United States
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31
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Sologuren I, Martínez-Saavedra MT, Solé-Violán J, de Borges de Oliveira E Jr, Betancor E, Casas I, Oleaga-Quintas C, Martínez-Gallo M, Zhang SY, Pestano J, Colobran R, Herrera-Ramos E, Pérez C, López-Rodríguez M, Ruiz-Hernández JJ, Franco N, Ferrer JM, Bilbao C, Andújar-Sánchez M, Álvarez Fernández M, Ciancanelli MJ, Rodríguez de Castro F, Casanova JL, Bustamante J, Rodríguez-Gallego C. Lethal Influenza in Two Related Adults with Inherited GATA2 Deficiency. J Clin Immunol 2018; 38:513-26. [PMID: 29882021 DOI: 10.1007/s10875-018-0512-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 03/28/2018] [Indexed: 11/18/2022]
Abstract
The pathogenesis of life-threatening influenza A virus (IAV) disease remains elusive, as infection is benign in most individuals. We studied two relatives who died from influenza. We Sanger sequenced GATA2 and evaluated the mutation by gene transfer, measured serum cytokine levels, and analyzed circulating T- and B-cells. Both patients (father and son, P1 and P2) died in 2011 of H1N1pdm IAV infection at the ages of 54 and 31 years, respectively. They had not suffered from severe or moderately severe infections in the last 17 (P1) and 15 years (P2). A daughter of P1 had died at 20 years from infectious complications. Low B-cell, NK- cell, and monocyte numbers and myelodysplastic syndrome led to sequence GATA2. Patients were heterozygous for a novel, hypomorphic, R396L mutation leading to haplo-insufficiency. B- and T-cell rearrangement in peripheral blood from P1 during the influenza episode showed expansion of one major clone. No T-cell receptor excision circles were detected in P1 and P3 since they were 35 and 18 years, respectively. Both patients presented an exuberant, interferon (IFN)-γ-mediated hypercytokinemia during H1N1pdm infection. No data about patients with viremia was available. Two previously reported adult GATA2-deficient patients died from severe H1N1 IAV infection; GATA2 deficiency may predispose to life-threatening influenza in adulthood. However, a role of other genetic variants involved in immune responses cannot be ruled out. Patients with GATA2 deficiency can reach young adulthood without severe infections, including influenza, despite long-lasting complete B-cell and natural killer (NK) cell deficiency, as well as profoundly diminished T-cell thymic output.
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32
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Fraser RS, Lumsden JS, Lillie BN. Identification of polymorphisms in the bovine collagenous lectins and their association with infectious diseases in cattle. Immunogenetics 2018; 70:533-546. [PMID: 29744529 PMCID: PMC6061482 DOI: 10.1007/s00251-018-1061-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/01/2018] [Indexed: 12/30/2022]
Abstract
Infectious diseases are a significant issue in animal production systems, including both the dairy and beef cattle industries. Understanding and defining the genetics of infectious disease susceptibility in cattle is an important step in the mitigation of their impact. Collagenous lectins are soluble pattern recognition receptors that form an important part of the innate immune system, which serves as the first line of host defense against pathogens. Polymorphisms in the collagenous lectin genes have been shown in previous studies to contribute to infectious disease susceptibility, and in cattle, mutations in two collagenous lectin genes (MBL1 and MBL2) are associated with mastitis. To further characterize the contribution of variation in the bovine collagenous lectins to infectious disease susceptibility, we used a pooled NGS approach to identify short nucleotide variants (SNVs) in the collagenous lectins (and regulatory DNA) of cattle with (n = 80) and without (n = 40) infectious disease. Allele frequency analysis identified 74 variants that were significantly (p < 5 × 10−6) associated with infectious disease, the majority of which were clustered in a 29-kb segment upstream of the collectin locus on chromosome 28. In silico analysis of the functional effects of all the variants predicted 11 SNVs with a deleterious effect on protein structure and/or function, 148 SNVs that occurred within potential transcription factor binding sites, and 31 SNVs occurring within potential miRNA binding elements. This study provides a detailed look at the genetic variation of the bovine collagenous lectins and identifies potential genetic markers for infectious disease susceptibility.
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Affiliation(s)
- R S Fraser
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - J S Lumsden
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.,St. George's University, True Blue, Grenada
| | - B N Lillie
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.
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33
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Kenney AD, Dowdle JA, Bozzacco L, McMichael TM, St Gelais C, Panfil AR, Sun Y, Schlesinger LS, Anderson MZ, Green PL, López CB, Rosenberg BR, Wu L, Yount JS. Human Genetic Determinants of Viral Diseases. Annu Rev Genet 2017; 51:241-263. [PMID: 28853921 DOI: 10.1146/annurev-genet-120116-023425] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Much progress has been made in the identification of specific human gene variants that contribute to enhanced susceptibility or resistance to viral diseases. Herein we review multiple discoveries made with genome-wide or candidate gene approaches that have revealed significant insights into virus-host interactions. Genetic factors that have been identified include genes encoding virus receptors, receptor-modifying enzymes, and a wide variety of innate and adaptive immunity-related proteins. We discuss a range of pathogenic viruses, including influenza virus, respiratory syncytial virus, human immunodeficiency virus, human T cell leukemia virus, human papilloma virus, hepatitis B and C viruses, herpes simplex virus, norovirus, rotavirus, parvovirus, and Epstein-Barr virus. Understanding the genetic underpinnings that affect infectious disease outcomes should allow tailored treatment and prevention approaches in the future.
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Affiliation(s)
- Adam D Kenney
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
| | - James A Dowdle
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, Ohio 43210, USA;
| | - Leonia Bozzacco
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY 10065, USA.,Current affiliation: Target Information Group, Regeneron Pharmaceuticals, Inc., Tarrytown, New York 10591, USA;
| | - Temet M McMichael
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
| | - Corine St Gelais
- Center of Retrovirus Research, Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
| | - Amanda R Panfil
- Center of Retrovirus Research, Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
| | - Yan Sun
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; ,
| | - Larry S Schlesinger
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, USA; , , , .,Texas Biomedical Research Institute, San Antonio, Texas 78227, USA;
| | - Matthew Z Anderson
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
| | - Patrick L Green
- Center of Retrovirus Research, Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
| | - Carolina B López
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; ,
| | - Brad R Rosenberg
- Program in Immunogenomics, John C. Whitehead Presidential Fellows Program, The Rockefeller University, New York, NY 10065, USA.,Current affiliation: Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Li Wu
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, USA; , , , .,Center of Retrovirus Research, Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
| | - Jacob S Yount
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, USA; , , ,
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34
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Yu L, Shang S, Tao R, Wang C, Zhang L, Peng H, Chen Y. High doses of recombinant mannan-binding lectin inhibit the binding of influenza A(H1N1)pdm09 virus with cells expressing DC-SIGN. APMIS 2017; 125:655-664. [PMID: 28493491 DOI: 10.1111/apm.12695] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 12/14/2017] [Indexed: 12/21/2022]
Abstract
The pandemic influenza A (H1N1)pdm09 virus continues to be a threat to human health. Low doses of mannan-binding lectin (MBL) (<1 μg/mL) were shown not to protect against influenza A(H1N1)pdm09 infection. However, the effect of high doses of MBL has not been investigated. Dendritic cell-specific intercellular adhesion molecule-3 grabbing non-integrin (DC-SIGN) has been proposed as an alternative receptor for influenza A(H1N1)pdm09 virus. In this study, we examined the expression of DC-SIGN on DCs as well as on acute monocytic leukemia cell line, THP-1. High doses of recombinant or human MBL inhibited binding of influenza A(H1N1)pdm09 to both these cell types in the presence of complement derived from bovine serum. Further, anti-DC-SIGN monoclonal antibody inhibited binding of influenza A(H1N1)pdm09 to both DC-SIGN-expressing DCs and THP-1 cells. This study demonstrates that high doses of MBL can inhibit binding of influenza A(H1N1)pdm09 virus to DC-SIGN-expressing cells in the presence of complement. Our results suggest that DC-SIGN may be an alternative receptor for influenza A(H1N1)pdm09 virus.
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Affiliation(s)
- Lei Yu
- Division of Infection Disease, Zhejiang Key Laboratory for Neonatal Diseases, Children Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Laboratory of Cancer Biology, Sir Runrun Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shiqiang Shang
- Division of Infection Disease, Zhejiang Key Laboratory for Neonatal Diseases, Children Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ran Tao
- Division of Infection Disease, Zhejiang Key Laboratory for Neonatal Diseases, Children Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Caiyun Wang
- Division of Infection Disease, Zhejiang Key Laboratory for Neonatal Diseases, Children Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Li Zhang
- Division of Infection Disease, Zhejiang Key Laboratory for Neonatal Diseases, Children Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hao Peng
- Department of Pediatrics, Pingxiang Maternal and Child Health Hospital, Pingxiang, China
| | - Yinghu Chen
- Division of Infection Disease, Zhejiang Key Laboratory for Neonatal Diseases, Children Hospital, Zhejiang University School of Medicine, Hangzhou, China
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35
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Liu J, Li G, Li L, Liu Z, Zhou Q, Wang G, Chen D. Surfactant protein-D (SP-D) gene polymorphisms and serum level as predictors of susceptibility and prognosis of acute kidney injury in the Chinese population. BMC Nephrol 2017; 18:67. [PMID: 28212617 PMCID: PMC5316147 DOI: 10.1186/s12882-017-0485-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/09/2017] [Indexed: 01/05/2023] Open
Abstract
Background Injury to the kidney epithelial barrier is a characteristic feature of acute kidney injury (AKI). Serum surfactant protein-D (SP-D), a known biomarker of damaged alveolar epithelium, is also secreted by renal tubular epithelial cells. Therefore, the aim of this study was to examine the possible association of SP-D with AKI susceptibility and prognosis. Methods In this study, 159 AKI patients and 120 healthy individuals were included. SP-D polymorphisms Thr11Met and Thr160Ala, AKI patient serum SP-D levels at days 1, 3 and 7 and urine KIM-1 levels in both AKI patients and controls were examined. The obtained results were correlated with the AKI stage, duration of renal replacement therapy (RRT) and prognosis. Results Serum SP-D level in AKI patients was higher than controls (p < 0.01). SP-D 11Thr/Thr genotype was more frequent in AKI patients than in controls (p < 0.01). Furthermore, AKI patients with SP-D 11Thr/Thr genotype had significantly higher serum SP-D levels (p < 0.05) compared to other genotypes. Serum SP-D levels corrected to the progression of AKI with a peak at day 3. Furthermore, the SP-D 11Thr/Thr genotype frequency and baseline serum SP-D level were higher in patients who subsequently died. Baseline serum SP-D levels positively correlated with the urine KIM-1 levels, AKI stage and RRT duration. Conclusion In our study, elevated serum SP-D was associated with worse AKI clinical outcomes and patients with SP-D 11Thr/Thr genotype were more susceptible to AKI. Collectively, these findings suggest that SP-D may be useful as a biomarker of AKI susceptibility and prognosis.
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Affiliation(s)
- Jiao Liu
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Guang Li
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Lianghai Li
- Department of Critical Care Medicine, Jingzhou Central Hospital, Jingzhou, Hubei, 434020, China
| | - Zhiyong Liu
- Department of Internal medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Qingshan Zhou
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Guirong Wang
- Department of Surgery, SUNY Upstate Medical University, Syracuse, NY, 13210, USA
| | - Dechang Chen
- Department of Critical Care Medicine, Shanghai Ruijin Hospital Affiliated with Jiaotong University, Shanghai, China.
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Madsen EC, Levy ER, Madden K, Agan AA, Sullivan RM, Graham DA, Randolph AG. Mannose-Binding Lectin Levels in Critically Ill Children With Severe Infections. Pediatr Crit Care Med 2017; 18:103-11. [PMID: 27820718 DOI: 10.1097/PCC.0000000000001000] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVES Low mannose-binding lectin levels and haplotypes associated with low mannose-binding lectin production have been associated with infection and severe sepsis. We tested the hypothesis that mannose-binding lectin levels would be associated with severe infection in a large cohort of critically ill children. DESIGN Prospective cohort study. SETTING Medical and Surgical PICUs, Boston Children's Hospital. PATIENTS Children less than 21 years old admitted to the ICUs from November 2009 to November 2010. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We measured mannose-binding lectin levels in 479 of 520 consecutively admitted children (92%) with severe or life-threatening illness. We genotyped 213 Caucasian children for mannose-binding lectin haplotype tagging variants and assigned haplotypes. In the univariate analyses of mannose-binding lectin levels with preadmission characteristics, levels were higher in patients with preexisting renal disease. Patients who received greater than 100 mL/kg of fluids in the first 24 hours after admission had markedly lower mannose-binding lectin, as did patients who underwent spinal fusion surgery. Mannose-binding lectin levels had no association with infection status at admission, or with progression from systemic inflammatory response syndrome to sepsis or septic shock. Although mannose-binding lectin haplotypes strongly influenced mannose-binding lectin levels in the predicted relationship, low mannose-binding lectin-producing haplotypes were not associated with increased risk of infection. CONCLUSIONS Mannose-binding lectin levels are largely genetically determined. This relationship was preserved in children during critical illness, despite the effect of large-volume fluid administration on mannose-binding lectin levels. Previous literature evaluating an association between mannose-binding lectin levels and severe infection is inconsistent; we found no relationship in our PICU cohort. We found that mannose-binding lectin levels were lower after aggressive fluid resuscitation and suggest that studies of mannose-binding lectin in critically ill patients should assess mannose-binding lectin haplotypes to reflect preillness levels.
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Fu Y, Gaelings L, Jalovaara P, Kakkola L, Kinnunen MT, Kallio-kokko H, Valkonen M, Kantele A, Kainov DE. Protein profiling of nasopharyngeal aspirates of hospitalized and outpatients revealed cytokines associated with severe influenza A(H1N1)pdm09 virus infections: A pilot study. Cytokine 2016; 86:10-4. [DOI: 10.1016/j.cyto.2016.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 07/04/2016] [Accepted: 07/05/2016] [Indexed: 12/19/2022]
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López-Rodríguez M, Herrera-Ramos E, Solé-Violán J, Ruíz-Hernández JJ, Borderías L, Horcajada JP, Lerma-Chippirraz E, Rajas O, Briones M, Pérez-González MC, García-Bello MA, López-Granados E, Rodriguez de Castro F, Rodríguez-Gallego C. IFITM3 and severe influenza virus infection. No evidence of genetic association. Eur J Clin Microbiol Infect Dis 2016; 35:1811-1817. [PMID: 27492307 PMCID: PMC7100079 DOI: 10.1007/s10096-016-2732-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/11/2016] [Indexed: 11/20/2022]
Abstract
Influenza virus infection (IVI) is typically subclinical or causes a self-limiting upper respiratory disease. However, in a small subset of patients IVI rapidly progresses to primary viral pneumonia (PVP) with respiratory failure; a minority of patients require intensive care unit admission. Inherited and acquired variability in host immune responses may influence susceptibility and outcome of IVI. However, the molecular basis of such human factors remains largely elusive. It has been proposed that homozygosity for IFITM3 rs12252-C is associated with a population-attributable risk of 5.4 % for severe IVI in Northern Europeans and 54.3 % for severe H1N1pdm infection in Chinese. A total of 148 patients with confirmed IVI were considered for recruitment; 118 Spanish patients (60 of them hospitalized with PVP) and 246 healthy Spanish individuals were finally included in the statistical analysis. PCR-RFLP was used with confirmation by Sanger sequencing. The allele frequency for rs12252-C was found to be 3.5 % among the general Spanish population. We found no rs12252-C homozygous individuals in our control group. The only Spanish patient homozygous for rs12252-C had a neurological disorder (a known risk factor for severe IVI) and mild influenza. Our data do not suggest a role of rs12252-C in the development of severe IVI in our population. These data may be relevant to recognize whether patients homozygous for rs12252-C are at risk of severe influenza, and hence require individualized measures in the case of IVI.
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Affiliation(s)
- M López-Rodríguez
- Department of Immunology, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010, Spain.,Department of Clinical Sciences, School of Medicine, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, 35016, Spain
| | - E Herrera-Ramos
- Department of Immunology, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010, Spain.,Department of Medical and Surgical Sciences, School of Medicine, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, 35016, Spain
| | - J Solé-Violán
- Intensive Care Unit, Hospital Universitario de Gran Canaria Dr. Negrín, CIBERES, Las Palmas de Gran Canaria, 35010, Spain
| | - J J Ruíz-Hernández
- Department of Internal Medicine, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas Gran Canaria, 35010, Spain
| | - L Borderías
- Department of Respiratory Diseases, Hospital San Jorge, Huesca, 22004, Spain
| | - J P Horcajada
- Department of Infectious Diseases, Hospital Universitari del Mar, Barcelona, 08003, Spain.,Hospital del Mar de Investigaciones Médicas (IMIM), CIBERES, Barcelona, 08003, Spain
| | - E Lerma-Chippirraz
- Department of Infectious Diseases, Hospital Universitari del Mar, Barcelona, 08003, Spain
| | - O Rajas
- Department of Respiratory Diseases, Hospital Universitario de la Princesa, Madrid, 28005, Spain
| | - M Briones
- Department of Respiratory Diseases, Hospital Clínico y Universitario de Valencia, Valencia, 46010, Spain
| | - M C Pérez-González
- Department of Microbiology, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010, Spain
| | - M A García-Bello
- Department of Statistics, Research Unit, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010, Spain
| | - E López-Granados
- Department of Immunology, Hospital La Paz, La Paz Institute of Biomedical Research, IdiPAZ, Madrid, 28046, Spain
| | - F Rodriguez de Castro
- Department of Medical and Surgical Sciences, School of Medicine, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, 35016, Spain.,Department of Respiratory Diseases, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010, Spain
| | - C Rodríguez-Gallego
- Department of Immunology, Hospital Universitario Son Espases, Palma de Mallorca, 07120, Spain. .,Department of Immunology, Hospital Universitario Son Espases, Carretera de Valldemossa 79, 07120, Palma de Mallorca, Spain.
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Sapru A, Liu KD, Wiemels J, Hansen H, Pawlikowska L, Poon A, Jorgenson E, Witte JS, Calfee CS, Ware LB, Matthay MA. Association of common genetic variation in the protein C pathway genes with clinical outcomes in acute respiratory distress syndrome. Crit Care 2016; 20:151. [PMID: 27215212 PMCID: PMC4876559 DOI: 10.1186/s13054-016-1330-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 04/27/2016] [Indexed: 01/10/2023]
Abstract
Background Altered plasma levels of protein C, thrombomodulin, and the endothelial protein C receptor are associated with poor clinical outcomes in patients with acute respiratory distress syndrome (ARDS). We hypothesized that common variants in these genes would be associated with mortality as well as ventilator-free and organ failure-free days in patients with ARDS. Methods We genotyped linkage disequilibrium-based tag single-nucleotide polymorphisms in the ProteinC, Thrombomodulin and Endothelial Protein C Reptor Genes among 320 self-identified white patients of European ancestry from the ARDS Network Fluid and Catheter Treatment Trial. We then tested their association with mortality as well as ventilator-free and organ-failure free days. Results The GG genotype of rs1042580 (p = 0.02) and CC genotype of rs3716123 (p = 0.002), both in the thrombomodulin gene, and GC/CC genotypes of rs9574 (p = 0.04) in the endothelial protein C receptor gene were independently associated with increased mortality. An additive effect on mortality (p < 0.001), ventilator-free days (p = 0.01), and organ failure-free days was observed with combinations of these high-risk genotypes. This association was independent of age, severity of illness, presence or absence of sepsis, and treatment allocation. Conclusions Genetic variants in thrombomodulin and endothelial protein C receptor genes are additively associated with mortality in ARDS. These findings suggest that genetic differences may be at least partially responsible for the observed associations between dysregulated coagulation and poor outcomes in ARDS. Electronic supplementary material The online version of this article (doi:10.1186/s13054-016-1330-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anil Sapru
- Departments of Pediatrics, University of California, Box 0106, , 550, 16th Street, San Francisco, CA, 94143, USA. .,David Geffen School of Medicine, Department of Pediatrics, University of California, 10833 Le Conte Avenue, 12-488 MDCC, Los Angeles, 90095, CA, USA.
| | - Kathleen D Liu
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Joseph Wiemels
- Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Helen Hansen
- Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Ludmilla Pawlikowska
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA.,Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Annie Poon
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Eric Jorgenson
- Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - John S Witte
- Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Carolyn S Calfee
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Lorraine B Ware
- Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Michael A Matthay
- Department of Medicine, University of California, San Francisco, CA, USA.,Cardiovascular Research Institute, University of California, San Francisco, CA, USA
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Ciancanelli MJ, Abel L, Zhang SY, Casanova JL. Host genetics of severe influenza: from mouse Mx1 to human IRF7. Curr Opin Immunol 2016; 38:109-20. [PMID: 26761402 PMCID: PMC4733643 DOI: 10.1016/j.coi.2015.12.002] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 11/30/2015] [Accepted: 12/03/2015] [Indexed: 12/22/2022]
Abstract
Influenza viruses cause mild to moderate respiratory illness in most people, and only rarely devastating or fatal infections. The virulence factors encoded by viral genes can explain seasonal or geographic differences at the population level but are unlikely to account for inter-individual clinical variability. Inherited or acquired immunodeficiencies may thus underlie severe cases of influenza. The crucial role of host genes was first demonstrated by forward genetics in inbred mice, with the identification of interferon (IFN)-α/β-inducible Mx1 as a canonical influenza susceptibility gene. Reverse genetics has subsequently characterized the in vivo role of other mouse genes involved in IFN-α/β and -λ immunity. A series of in vitro studies with mouse and human cells have also refined the cell-intrinsic mechanisms of protection against influenza viruses. Population-based human genetic studies have not yet uncovered variants with a significant impact. Interestingly, human primary immunodeficiencies affecting T and B cells were also not found to predispose to severe influenza. Recently however, human IRF7 was shown to be essential for IFN-α/β- and IFN-λ-dependent protective immunity against primary influenza in vivo, as inferred from a patient with life-threatening influenza revealed to be IRF7-deficient by whole exome sequencing. Next generation sequencing of human exomes and genomes will facilitate the analysis of the human genetic determinism of severe influenza.
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Affiliation(s)
- Michael J Ciancanelli
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA.
| | - Laurent Abel
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA; Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM-U1163, Necker Hospital for Sick Children, Paris, France; Paris Descartes University, Imagine Institute, Paris, France
| | - Shen-Ying Zhang
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA; Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM-U1163, Necker Hospital for Sick Children, Paris, France; Paris Descartes University, Imagine Institute, Paris, France
| | - Jean-Laurent Casanova
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA; Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM-U1163, Necker Hospital for Sick Children, Paris, France; Paris Descartes University, Imagine Institute, Paris, France; Howard Hughes Medical Institute, New York, NY, USA; Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, Paris, France
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Nathan N, Giraud V, Picard C, Nunes H, Dastot-Le Moal F, Copin B, Galeron L, De Ligniville A, Kuziner N, Reynaud-Gaubert M, Valeyre D, Couderc LJ, Chinet T, Borie R, Crestani B, Simansour M, Nau V, Tissier S, Duquesnoy P, Mansour-Hendili L, Legendre M, Kannengiesser C, Coulomb-L'Hermine A, Gouya L, Amselem S, Clement A. GermlineSFTPA1mutation in familial idiopathic interstitial pneumonia and lung cancer. Hum Mol Genet 2016; 25:1457-67. [DOI: 10.1093/hmg/ddw014] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/14/2016] [Indexed: 01/18/2023] Open
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Abstract
Alveolar macrophages (AMs) are critical for immunity against influenza A virus (IAV) infection. Depletion, hyporeactivity, and disruption of AM development and differentiation are all associated with lethal IAV infection. AMs drive the innate immune response that limits IAV infection. AMs are crucial for steady-state homeostasis of pulmonary surfactant, and in turn surfactant proteins regulate AMs and participate in host defense against IAV. Known factors that are necessary for AM function and differentiation in vivo include surfactant proteins, the growth factor GM-CSF, the hormone receptor PPARγ, and the transcription factors PU.1 and Bach2. Although PU.1 and PPARγ are downstream effectors of GM-CSF, Bach2 works independently. GM-CSF and Bach2-deficient AMs have phenotypes with immature or alternatively activated states of differentiation, respectively, and both extremes are unsuitable for surfactant homeostasis. The activation state of AMs and the local microenvironment may determine the development of symptomatic versus asymptomatic IAV infection in different individuals.
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Affiliation(s)
- E Scott Halstead
- a 1 Department of Pediatrics, Division of Pulmonary Critical Care, Medicine, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Pennsylvania State University Hershey Children's Hospital, Hershey, PA, USA
| | - Zissis C Chroneos
- b 2 Department of Pediatrics, Microbiology and Immunology, Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
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Abstract
The emergence of the pandemic influenza virus A(H1N1)pdm09 in 2009 and avian influenza virus A(H7N9) in 2013 provided unique opportunities for assessing genetic predispositions to severe disease because many patients did not have any underlying risk factor or neutralizing antibody against these agents, in contrast to seasonal influenza viruses. High-throughput screening platforms and large human or animal databases from international collaborations allow rapid selection of potential candidate genes for confirmatory functional studies. In the last 2 years, at least seven new human susceptibility genes have been identified in genetic association studies. Integration of knowledge from genetic and phenotypic studies is essential to identify important gene targets for treatment and prevention of influenza virus infection.
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Affiliation(s)
- Kelvin Kai-Wang To
- State Key Laboratory for Emerging Infectious Diseases, Carol Yu Centre for Infection, Research Centre of Infection and Immunology, Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Jie Zhou
- State Key Laboratory for Emerging Infectious Diseases, Carol Yu Centre for Infection, Research Centre of Infection and Immunology, Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Jasper Fuk-Woo Chan
- State Key Laboratory for Emerging Infectious Diseases, Carol Yu Centre for Infection, Research Centre of Infection and Immunology, Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Kwok-Yung Yuen
- State Key Laboratory for Emerging Infectious Diseases, Carol Yu Centre for Infection, Research Centre of Infection and Immunology, Department of Microbiology, The University of Hong Kong, Hong Kong, China.
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Valverde G, Zhou H, Lippold S, de Filippo C, Tang K, López Herráez D, Li J, Stoneking M. A novel candidate region for genetic adaptation to high altitude in Andean populations. PLoS One 2015; 10:e0125444. [PMID: 25961286 PMCID: PMC4427407 DOI: 10.1371/journal.pone.0125444] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 03/12/2015] [Indexed: 02/07/2023] Open
Abstract
Humans living at high altitude (≥2,500 meters above sea level) have acquired unique abilities to survive the associated extreme environmental conditions, including hypoxia, cold temperature, limited food availability and high levels of free radicals and oxidants. Long-term inhabitants of the most elevated regions of the world have undergone extensive physiological and/or genetic changes, particularly in the regulation of respiration and circulation, when compared to lowland populations. Genome scans have identified candidate genes involved in altitude adaption in the Tibetan Plateau and the Ethiopian highlands, in contrast to populations from the Andes, which have not been as intensively investigated. In the present study, we focused on three indigenous populations from Bolivia: two groups of Andean natives, Aymara and Quechua, and the low-altitude control group of Guarani from the Gran Chaco lowlands. Using pooled samples, we identified a number of SNPs exhibiting large allele frequency differences over 900,000 genotyped SNPs. A region in chromosome 10 (within the cytogenetic bands q22.3 and q23.1) was significantly differentiated between highland and lowland groups. We resequenced ~1.5 Mb surrounding the candidate region and identified strong signals of positive selection in the highland populations. A composite of multiple signals like test localized the signal to FAM213A and a related enhancer; the product of this gene acts as an antioxidant to lower oxidative stress and may help to maintain bone mass. The results suggest that positive selection on the enhancer might increase the expression of this antioxidant, and thereby prevent oxidative damage. In addition, the most significant signal in a relative extended haplotype homozygosity analysis was localized to the SFTPD gene, which encodes a surfactant pulmonary-associated protein involved in normal respiration and innate host defense. Our study thus identifies two novel candidate genes and associated pathways that may be involved in high-altitude adaptation in Andean populations.
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Affiliation(s)
- Guido Valverde
- Australian Centre for Ancient DNA, School of Earth & Environmental Sciences, The University of Adelaide, Adelaide, Australia
| | - Hang Zhou
- Department of Computational Regulatory Genomics, CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Shanghai, China
| | - Sebastian Lippold
- Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Cesare de Filippo
- Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Kun Tang
- Department of Computational Regulatory Genomics, CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Shanghai, China
| | - David López Herráez
- Department Effect-Directed Analysis, Helmholtz Centre for Environmental Research—UFZ, Leipzig, Germany
- * E-mail: (DLH); (JL); (MS)
| | - Jing Li
- Department of Computational Regulatory Genomics, CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Shanghai, China
- * E-mail: (DLH); (JL); (MS)
| | - Mark Stoneking
- Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
- * E-mail: (DLH); (JL); (MS)
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Ledford JG, Voelker DR, Addison KJ, Wang Y, Nikam VS, Degan S, Kandasamy P, Tanyaratsrisakul S, Fischer BM, Kraft M, Hollingsworth JW. Genetic variation in SP-A2 leads to differential binding to Mycoplasma pneumoniae membranes and regulation of host responses. J Immunol 2015; 194:6123-32. [PMID: 25957169 DOI: 10.4049/jimmunol.1500104] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 04/19/2015] [Indexed: 01/14/2023]
Abstract
Mycoplasma pneumoniae is an extracellular pathogen that colonizes mucosal surfaces of the respiratory tract and is associated with asthma exacerbations. Previous reports demonstrate that surfactant protein-A (SP-A) binds live M. pneumoniae and mycoplasma membrane fractions (MMF) with high affinity. Humans express a repertoire of single-amino acid genetic variants of SP-A that may be associated with lung disease, and our findings demonstrate that allelic differences in SP-A2 (Gln223Lys) affect the binding to MMF. We show that SP-A(-/-) mice are more susceptible to MMF exposure and have significant increases in mucin production and neutrophil recruitment. Novel humanized SP-A2-transgenic mice harboring the hSP-A2 223K allele exhibit reduced neutrophil influx and mucin production in the lungs when challenged with MMF compared with SP-A(-/-) mice. Conversely, mice expressing hSP-A2 223Q have increased neutrophil influx and mucin production that are similar to SP-A(-/-) mice. Using tracheal epithelial cell cultures, we show that enhanced mucin production to MMF occurs in the absence of SP-A and is not dependent upon neutrophil recruitment. Increased phosphorylation of the epidermal growth factor receptor (EGFR) was evident in the lungs of MMF-challenged mice when SP-A was absent. Pharmacologic inhibition of EGFR prior to MMF challenge dramatically reduced mucin production in SP-A(-/-) mice. These findings suggest a protective role for SP-A in limiting MMF-stimulated mucin production that occurs through interference with EGFR-mediated signaling. SP-A interaction with the EGFR signaling pathway appears to occur in an allele-specific manner that may have important implications for SP-A polymorphisms in human diseases.
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Affiliation(s)
- Julie G Ledford
- Department of Medicine, Duke University Medical Center, Durham, NC 27710; Department of Cell Biology, Duke University Medical Center, Durham, NC 27710; Department of Medicine, University of Arizona, Tucson, AZ 85721;
| | - Dennis R Voelker
- Department of Medicine, National Jewish Health, Denver, CO 80206
| | - Kenneth J Addison
- Department of Medicine, Duke University Medical Center, Durham, NC 27710; Department of Medicine, University of Arizona, Tucson, AZ 85721
| | - Ying Wang
- Department of Medicine, Duke University Medical Center, Durham, NC 27710; Department of Medicine, University of Arizona, Tucson, AZ 85721
| | - Vinayak S Nikam
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710
| | - Simone Degan
- Department of Radiology, Duke University Medical Center, Durham, NC 27710
| | | | | | - Bernard M Fischer
- Department of Pediatrics, Duke University Medical Center, Durham, NC 27710; and
| | - Monica Kraft
- Department of Medicine, Duke University Medical Center, Durham, NC 27710; Department of Medicine, University of Arizona, Tucson, AZ 85721
| | - John W Hollingsworth
- Department of Medicine, Duke University Medical Center, Durham, NC 27710; Dorothy M. Davis Heart and Lung Research Institute, Wexner Medical Center, The Ohio State University, Columbus, OH 43210
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Tolosa MF, Palaniyar N. Severe respiratory insufficiency during pandemic H1N1 infection: prognostic value and therapeutic potential of pulmonary surfactant protein A. Crit Care 2014; 18:479. [PMID: 25184962 PMCID: PMC4423634 DOI: 10.1186/s13054-014-0479-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 07/24/2014] [Indexed: 12/20/2022]
Abstract
For almost two decades, studies have shown collectins to be critical for effective antimicrobial defense of the airways. Members of this protein family, which includes surfactant proteins (SP)-A and D, provide broad-spectrum protection through promoting the aggregation and clearance of pathogens. Interestingly, these proteins may also modulate the immune response, and growing evidence has shown collectins to be protective against several markers of inflammation and injury. In a recent study by Herrera-Ramos and colleagues, genetic variants of collectins were examined in Spanish patients with the pandemic 2009 H1N1 influenza A virus. Comparing genotypes for measures of poor lung function, inflammation, and admission to intensive care, these authors identified three variants of the SP-A gene SFTPA2 that positively correlated with flu severity. Remarkably, they also found the haplotype 1A1 of SFTPA2 to be protective against these indicators, suggesting that targeted therapy with a recombinant form of SP-A2 may improve patient outcome. Although further work is required to confirm the specificity and efficacy of SP-A in therapeutic H1N1 protection, this study is one of the first to suggest a clinical role for SP-A in pandemic influenza.
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Affiliation(s)
- Monica Fern Tolosa
- Program in Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada. .,Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.
| | - Nades Palaniyar
- Program in Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada. .,Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada. .,Institute of Medical Sciences, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.
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