1
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Yan L, Chen Y, Yang Y, Han Y, Tong C. Heat shock protein 90α reduces CD8 + T cell exhaustion in acute lung injury induced by lipopolysaccharide. Cell Death Discov 2024; 10:283. [PMID: 38871699 DOI: 10.1038/s41420-024-02046-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024] Open
Abstract
CD8+ T-cell exhaustion is a promising prognostic indicator of sepsis-induced acute respiratory distress syndrome (ARDS). Patients with sepsis-related ARDS had reduced levels of HSP90AA1. However, whether the changes in CD8+ T cells were related to HSP90α, encoded by the HSP90AA1 gene, was unclear. This study aimed to examine the regulatory mechanism of HSP90α and its impact on CD8+ T-cell exhaustion in lipopolysaccharide (LPS)-induced acute lung injury (ALI). In this study, by conducting a mouse model of ALI, we found that one week after LPS-induced ALI, CD8+ T cells showed exhaustion characteristics. At this time, proliferation and cytokine release in CD8+ T cells were reduced. The inhibitory costimulatory factors PD-1 and Tim-3, on the other hand, were enhanced. Meanwhile, the expression of HSP90α and STAT1 decreased significantly. The in vitro studies showed that HSP90α stimulation or inhibition affected the CD8+ T-cell exhaustion phenotype. Interference with STAT1 reduced the expression of HSP90α and impaired its regulation of CD8+ T cells. The Co-Immunoprecipitation results indicated that HSP90α can directly or indirectly bind to TOX to regulate TOX expression and downstream signal transduction. In summary, by inhibiting TOX-mediated exhaustion signaling pathways, HSP90α inhibited CD8+ T-cell exhaustion in ALI. The participation of STAT1 in the regulation of HSP90α was required.
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Affiliation(s)
- Lei Yan
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Yumei Chen
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Yilin Yang
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Yi Han
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
| | - Chaoyang Tong
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
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2
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Giles ML, Sing Way S, Marchant A, Aghaepour N, James T, Schaltz-Buchholzer F, Zazara D, Arck P, Kollmann TR. Maternal vaccination to prevent adverse pregnancy outcomes: An underutilized molecular immunological intervention? J Mol Biol 2023; 435:168097. [PMID: 37080422 DOI: 10.1016/j.jmb.2023.168097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/27/2023] [Accepted: 04/10/2023] [Indexed: 04/22/2023]
Abstract
Adverse pregnancy outcomes including maternal mortality, stillbirth, preterm birth, intrauterine growth restriction cause millions of deaths each year. More effective interventions are urgently needed. Maternal immunization could be one such intervention protecting the mother and newborn from infection through its pathogen-specific effects. However, many adverse pregnancy outcomes are not directly linked to the infectious pathogens targeted by existing maternal vaccines but rather are linked to pathological inflammation unfolding during pregnancy. The underlying pathogenesis driving such unfavourable outcomes have only partially been elucidated but appear to relate to altered immune regulation by innate as well as adaptive immune responses, ultimately leading to aberrant maternal immune activation. Maternal immunization, like all immunization, impacts the immune system beyond pathogen-specific immunity. This raises the possibility that maternal vaccination could potentially be utilised as a pathogen-agnostic immune modulatory intervention to redirect abnormal immune trajectories towards a more favourable phenotype providing pregnancy protection. In this review we describe the epidemiological evidence surrounding this hypothesis, along with the mechanistic plausibility and present a possible path forward to accelerate addressing the urgent need of adverse pregnancy outcomes.
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Affiliation(s)
| | - Sing Sing Way
- Center for Inflammation and Tolerance; Cincinnati Children's Hospital, Cincinnati USA
| | | | - Nima Aghaepour
- Stanford University School of Medicine, Stanford, CA, USA
| | - Tomin James
- Stanford University School of Medicine, Stanford, CA, USA
| | | | - Dimitra Zazara
- Division of Experimental Feto-Maternal Medicine, Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg, Hamburg, Germany
| | - Petra Arck
- Division of Experimental Feto-Maternal Medicine, Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg, Hamburg, Germany
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3
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Sharma S, Rodrigues PR, Zaher S, Davies LC, Ghazal P. Immune-metabolic adaptations in pregnancy: A potential stepping-stone to sepsis. EBioMedicine 2022; 86:104337. [PMID: 36470829 PMCID: PMC9782817 DOI: 10.1016/j.ebiom.2022.104337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/30/2022] [Accepted: 10/17/2022] [Indexed: 12/04/2022] Open
Abstract
Physiological shifts during pregnancy predispose women to a higher risk of developing sepsis resulting from a maladapted host-response to infection. Insightful studies have delineated subtle point-changes to the immune system during pregnancy. Here, we present an overlay of these point-changes, asking what changes and when, at a physiological, cellular, and molecular systems-level in the context of sepsis. We identify distinct immune phases in pregnancy delineated by placental hormone-driven changes in homeostasis setpoints of the immune and metabolic systems that subtly mirrors changes observed in sepsis. We propose that pregnancy immune-metabolic setpoint changes impact feedback thresholds that increase risk for a maladapted host-response to infection and thus act as a stepping-stone to sepsis. Defining maternal immune-metabolic setpoint changes is not only vital for tailoring the right diagnostic tools for early management of maternal sepsis but will facilitate an unravelling of the pathophysiological pathways that predispose an individual to sepsis.
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Affiliation(s)
- Simran Sharma
- Project Sepsis, Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK,Department of Obstetrics & Gynaecology, University Hospital of Wales, Cardiff, CF14 4XW, UK,Corresponding author. Department of Obstetrics & Gynaecology, University Hospital of Wales, Cardiff, CF14 4XW, UK.
| | - Patricia R.S. Rodrigues
- Project Sepsis, Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - Summia Zaher
- Project Sepsis, Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK,Department of Obstetrics & Gynaecology, University Hospital of Wales, Cardiff, CF14 4XW, UK
| | - Luke C. Davies
- Project Sepsis, Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK,Biomedical Sciences Unit, Swansea University Medical School, Singleton Park, Swansea, SA2 8PP, UK
| | - Peter Ghazal
- Project Sepsis, Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK,Corresponding author. Systems Immunity Research Institute, School of Medicine, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK.
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4
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Viral Infections During Pregnancy: The Big Challenge Threatening Maternal and Fetal Health. MATERNAL-FETAL MEDICINE 2022; 4:72-86. [PMID: 35187500 PMCID: PMC8843053 DOI: 10.1097/fm9.0000000000000133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/11/2021] [Indexed: 12/18/2022] Open
Abstract
Viral infections during pregnancy are associated with adverse pregnancy outcomes, including maternal and fetal mortality, pregnancy loss, premature labor, and congenital anomalies. Mammalian gestation encounters an immunological paradox wherein the placenta balances the tolerance of an allogeneic fetus with protection against pathogens. Viruses cannot easily transmit from mother to fetus due to physical and immunological barriers at the maternal-fetal interface posing a restricted threat to the fetus and newborns. Despite this, the unknown strategies utilized by certain viruses could weaken the placental barrier to trigger severe maternal and fetal health issues especially through vertical transmission, which was not fully understood until now. In this review, we summarize diverse aspects of the major viral infections relevant to pregnancy, including the characteristics of pathogenesis, related maternal-fetal complications, and the underlying molecular and cellular mechanisms of vertical transmission. We highlight the fundamental signatures of complex placental defense mechanisms, which will prepare us to fight the next emerging and re-emerging infectious disease in the pregnancy population.
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5
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Hongo D, Zheng P, Dutt S, Pawar RD, Meyer E, Engleman EG, Strober S. Identification of Two Subsets of Murine DC1 Dendritic Cells That Differ by Surface Phenotype, Gene Expression, and Function. Front Immunol 2021; 12:746469. [PMID: 34777358 PMCID: PMC8589020 DOI: 10.3389/fimmu.2021.746469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/17/2021] [Indexed: 11/13/2022] Open
Abstract
Classical dendritic cells (cDCs) in mice have been divided into 2 major subsets based on the expression of nuclear transcription factors: a CD8+Irf8+Batf3 dependent (DC1) subset, and a CD8-Irf4+ (DC2) subset. We found that the CD8+DC1 subset can be further divided into CD8+DC1a and CD8+DC1b subsets by differences in surface receptors, gene expression, and function. Whereas all 3 DC subsets can act alone to induce potent Th1 cytokine responses to class I and II MHC restricted peptides derived from ovalbumin (OVA) by OT-I and OT-II transgenic T cells, only the DC1b subset could effectively present glycolipid antigens to natural killer T (NKT) cells. Vaccination with OVA protein pulsed DC1b and DC2 cells were more effective in reducing the growth of the B16-OVA melanoma as compared to pulsed DC1a cells in wild type mice. In conclusion, the Batf3-/- dependent DC1 cells can be further divided into two subsets with different immune functional profiles in vitro and in vivo.
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Affiliation(s)
- David Hongo
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, United States
| | - Pingping Zheng
- Department of Medicine, Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, CA, United States
| | - Suparna Dutt
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, United States
| | - Rahul D Pawar
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, United States
| | - Everett Meyer
- Department of Medicine, Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, CA, United States
| | - Edgar G Engleman
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States
| | - Samuel Strober
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, United States
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6
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Martins Costa Gomes G, Karmaus W, Murphy VE, Gibson PG, Percival E, Hansbro PM, Starkey MR, Mattes J, Collison AM. Environmental Air Pollutants Inhaled during Pregnancy Are Associated with Altered Cord Blood Immune Cell Profiles. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18147431. [PMID: 34299892 PMCID: PMC8303567 DOI: 10.3390/ijerph18147431] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 12/11/2022]
Abstract
Air pollution exposure during pregnancy may be a risk factor for altered immune maturation in the offspring. We investigated the association between ambient air pollutants during pregnancy and cell populations in cord blood from babies born to mothers with asthma enrolled in the Breathing for Life Trial. For each patient (n = 91), daily mean ambient air pollutant levels were extracted during their entire pregnancy for sulfur dioxide (SO2), nitric oxide, nitrogen dioxide, carbon monoxide, ozone, particulate matter <10 μm (PM10) or <2.5 μm (PM2.5), humidity, and temperature. Ninety-one cord blood samples were collected, stained, and assessed using fluorescence-activated cell sorting (FACS). Principal Component (PC) analyses of both air pollutants and cell types with linear regression were employed to define associations. Considering risk factors and correlations between PCs, only one PC from air pollutants and two from cell types were statistically significant. PCs from air pollutants were characterized by higher PM2.5 and lower SO2 levels. PCs from cell types were characterized by high numbers of CD8 T cells, low numbers of CD4 T cells, and by high numbers of plasmacytoid dendritic cells (pDC) and low numbers of myeloid DCs (mDCs). PM2.5 levels during pregnancy were significantly associated with high numbers of pDCs (p = 0.006), and SO2 with high numbers of CD8 T cells (p = 0.002) and low numbers of CD4 T cells (p = 0.011) and mDCs (p = 4.43 × 10−6) in cord blood. These data suggest that ambient SO2 and PM2.5 exposure are associated with shifts in cord blood cell types that are known to play significant roles in inflammatory respiratory disease in childhood.
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Affiliation(s)
- Gabriela Martins Costa Gomes
- Priority Research Centre GrowUpWell®, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW 2308, Australia; (G.M.C.G.); (V.E.M.); (E.P.); (J.M.)
| | - Wilfried Karmaus
- School of Public Health, University of Memphis, Memphis, TN 38152, USA;
| | - Vanessa E. Murphy
- Priority Research Centre GrowUpWell®, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW 2308, Australia; (G.M.C.G.); (V.E.M.); (E.P.); (J.M.)
| | - Peter G. Gibson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2308, Australia; (P.G.G.); (P.M.H.)
- Sleep Medicine Department, John Hunter Hospital, Newcastle, NSW 2305, Australia
| | - Elizabeth Percival
- Priority Research Centre GrowUpWell®, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW 2308, Australia; (G.M.C.G.); (V.E.M.); (E.P.); (J.M.)
| | - Philip M. Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2308, Australia; (P.G.G.); (P.M.H.)
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, School of Life Sciences, Faculty of Science, Sydney, NSW 2007, Australia
| | - Malcolm R. Starkey
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC 3800, Australia;
| | - Joerg Mattes
- Priority Research Centre GrowUpWell®, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW 2308, Australia; (G.M.C.G.); (V.E.M.); (E.P.); (J.M.)
- Paediatric Respiratory & Sleep Medicine Department, John Hunter Children’s Hospital, Newcastle, NSW 2305, Australia
| | - Adam M. Collison
- Priority Research Centre GrowUpWell®, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW 2308, Australia; (G.M.C.G.); (V.E.M.); (E.P.); (J.M.)
- Correspondence: ; Tel.: +61-2-4042-0219
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7
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Honce R, Wohlgemuth N, Meliopoulos VA, Short KR, Schultz-Cherry S. Influenza in High-Risk Hosts-Lessons Learned from Animal Models. Cold Spring Harb Perspect Med 2020; 10:cshperspect.a038604. [PMID: 31871227 DOI: 10.1101/cshperspect.a038604] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Factoring significantly into the global burden of influenza disease are high-risk populations that suffer the bulk of infections. Classically, the very young, very old, and pregnant women have been identified as high-risk populations; however, recent research has uncovered several other conditions that contribute to severe infection. By using varied animal models, researchers have identified molecular mechanisms underpinning the increased likelihood for infection due to obesity and malnourishment, as well as insight into the role sex hormones play in antiviral immunity in males, in females, and across the life span. Additionally, novel comorbidity models have helped elucidate the role of chronic infectious and genetic diseases in influenza virus pathogenesis. Animal models play a vital role in understanding the contribution of host factors to influenza severity and immunity. An in-depth understanding of these host factors represents an important step in reducing the burden of influenza among the growing number of people living with one or more chronic medical conditions.
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Affiliation(s)
- Rebekah Honce
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-3678, USA.,Integrated Program in Biomedical Sciences, Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA
| | - Nicholas Wohlgemuth
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-3678, USA
| | - Victoria A Meliopoulos
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-3678, USA
| | - Kirsty R Short
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Stacey Schultz-Cherry
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-3678, USA
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8
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Wei R, Lai N, Zhao L, Zhang Z, Zhu X, Guo Q, Chu C, Fu X, Li X. Dendritic cells in pregnancy and pregnancy-associated diseases. Biomed Pharmacother 2020; 133:110921. [PMID: 33378991 DOI: 10.1016/j.biopha.2020.110921] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/18/2020] [Accepted: 10/20/2020] [Indexed: 12/20/2022] Open
Abstract
Dendritic cells (DCs) play a critical immuno-modulating role in pregnancy, which requires the maternal immune system to tolerate semiallogeneic fetus and at the same time to maintain adequate defense against pathogens. DCs interact closely with other immune components such as T cells, natural killer cells and macrophages, as well as the endocrine system to keep a pregnancy-friendly environment. Aberrant DC activities have been related to various pregnancy-associated diseases such as recurrent spontaneous abortion, preterm birth, pre-eclampsia, peripartum cardiomyopathy and infectious pregnancy complications. These findings make DCs an attractive candidate for prevention or therapy on the pregnancy-associated diseases. Here, we review recent findings that provide new insights into the roles of DCs in pregnancy and the related diseases. We also discuss the medical potentials to manipulate DCs in clinics. Whereas this is an emerging area with much work remaining, we anticipate that a better understanding of the role of DCs in maternal-fetal immunotolerance and a therapeutic manipulation of DCs will help women suffering from the pregnancy-associated diseases.
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Affiliation(s)
- Ran Wei
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Nannan Lai
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, PR China
| | - Lin Zhao
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Zhen Zhang
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Xiaoxiao Zhu
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Qiang Guo
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Chu Chu
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Xiaoxiao Fu
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Xia Li
- Laboratory for Molecular Immunology, Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China.
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9
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Cornish EF, Filipovic I, Åsenius F, Williams DJ, McDonnell T. Innate Immune Responses to Acute Viral Infection During Pregnancy. Front Immunol 2020; 11:572567. [PMID: 33101294 PMCID: PMC7556209 DOI: 10.3389/fimmu.2020.572567] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023] Open
Abstract
Immunological adaptations in pregnancy allow maternal tolerance of the semi-allogeneic fetus but also increase maternal susceptibility to infection. At implantation, the endometrial stroma, glands, arteries and immune cells undergo anatomical and functional transformation to create the decidua, the specialized secretory endometrium of pregnancy. The maternal decidua and the invading fetal trophoblast constitute a dynamic junction that facilitates a complex immunological dialogue between the two. The decidual and peripheral immune systems together assume a pivotal role in regulating the critical balance between tolerance and defense against infection. Throughout pregnancy, this equilibrium is repeatedly subjected to microbial challenge. Acute viral infection in pregnancy is associated with a wide spectrum of adverse consequences for both mother and fetus. Vertical transmission from mother to fetus can cause developmental anomalies, growth restriction, preterm birth and stillbirth, while the mother is predisposed to heightened morbidity and maternal death. A rapid, effective response to invasive pathogens is therefore essential in order to avoid overwhelming maternal infection and consequent fetal compromise. This sentinel response is mediated by the innate immune system: a heritable, highly evolutionarily conserved system comprising physical barriers, antimicrobial peptides (AMP) and a variety of immune cells—principally neutrophils, macrophages, dendritic cells, and natural killer cells—which express pattern-receptors that detect invariant molecular signatures unique to pathogenic micro-organisms. Recognition of these signatures during acute infection triggers signaling cascades that enhance antimicrobial properties such as phagocytosis, secretion of pro-inflammatory cytokines and activation of the complement system. As well as coordinating the initial immune response, macrophages and dendritic cells present microbial antigens to lymphocytes, initiating and influencing the development of specific, long-lasting adaptive immunity. Despite extensive progress in unraveling the immunological adaptations of pregnancy, pregnant women remain particularly susceptible to certain acute viral infections and continue to experience mortality rates equivalent to those observed in pandemics several decades ago. Here, we focus specifically on the pregnancy-induced vulnerabilities in innate immunity that contribute to the disproportionately high maternal mortality observed in the following acute viral infections: Lassa fever, Ebola virus disease (EVD), dengue fever, hepatitis E, influenza, and novel coronavirus infections.
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Affiliation(s)
- Emily F Cornish
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, United Kingdom
| | - Iva Filipovic
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institute, Stockholm, Sweden
| | - Fredrika Åsenius
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, United Kingdom
| | - David J Williams
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, United Kingdom
| | - Thomas McDonnell
- Department of Biochemical Engineering, University College London, London, United Kingdom
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10
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Saeed Z, Greer O, Shah NM. Is the Host Viral Response and the Immunogenicity of Vaccines Altered in Pregnancy? Antibodies (Basel) 2020; 9:E38. [PMID: 32759839 PMCID: PMC7551810 DOI: 10.3390/antib9030038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/06/2020] [Accepted: 07/21/2020] [Indexed: 12/11/2022] Open
Abstract
The intricacy of the maternal immune system arises from its ability to prevent a maternal immune response against a semi-allogenic fetus, while protecting the mother against harmful pathogens. However, these immunological adaptations may also make pregnant women vulnerable to developing adverse complications from respiratory viral infections. While the influenza and SARS pandemics support this theory, there is less certainty regarding the clinical impact of SARS-CoV-2 in pregnancy. In the current COVID-19 pandemic, vaccine development is key to public preventative strategies. Whilst most viral vaccines are able to induce a seroprotective antibody response, in some high-risk individuals this may not correlate with clinical protection. Some studies have shown that factors such as age, gender, and chronic illnesses can reduce their effectiveness and in this review, we discuss how pregnancy may affect the efficacy and immunogenicity of vaccines. We present literature to support the hypothesis that pregnant women are more susceptible to respiratory viral infections and may not respond to vaccines as effectively. In particular, we focus on the clinical implications of important respiratory viral infections such as influenza during pregnancy, and the pregnancy induced alterations in important leukocytes such as TFH, cTFH and B cells, which play an important role in generating long-lasting and high-affinity antibodies. Finally, we review how this may affect the efficacy of vaccines against influenza in pregnancy and highlight areas that require further research.
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Affiliation(s)
| | | | - Nishel Mohan Shah
- Academic Department of Obstetrics & Gynaecology, Imperial College London, Level 3, Chelsea & Westminster Hospital, 369 Fulham Road, London SW10 9NH, UK; (Z.S.); (O.G.)
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11
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Lauzon-Joset JF, Scott NM, Mincham KT, Stumbles PA, Holt PG, Strickland DH. Pregnancy Induces a Steady-State Shift in Alveolar Macrophage M1/M2 Phenotype That Is Associated With a Heightened Severity of Influenza Virus Infection: Mechanistic Insight Using Mouse Models. J Infect Dis 2020; 219:1823-1831. [PMID: 30576502 DOI: 10.1093/infdis/jiy732] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 12/20/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Influenza virus infection during pregnancy is associated with enhanced disease severity. However, the underlying mechanisms are still not fully understood. We hypothesized that normal alveolar macrophage (AM) functions, which are central to maintaining lung immune homeostasis, are altered during pregnancy and that this dysregulation contributes to the increased inflammatory response to influenza virus infection. METHODS Time-mated BALB/c mice were infected with a low dose of H1N1 influenza A virus at gestation day 9.5. Inflammatory cells in bronchoalveolar lavage (BAL) fluid were assessed by flow cytometry. RESULTS Our findings confirm previous reports of increased severity of influenza virus infection in pregnant mice. The heightened inflammatory response detected in BAL fluid from infected pregnant mice was characterized by neutrophil-rich inflammation with concomitantly reduced numbers of AM, which were slower to return to baseline counts, compared with nonpregnant infected mice. The increased infection severity and inflammatory responses to influenza during pregnancy were associated with a pregnancy-induced shift in AM phenotype at homeostatic baseline, from the M1 (ie, classical activation) state toward the M2 (ie, alternative activation) state, as evidence by increased expression of CD301 and reduced levels of CCR7. CONCLUSION These results show that pregnancy is associated with an alternatively activated phenotype of AM before infection, which may contribute to heightened disease severity.
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Affiliation(s)
| | - Naomi M Scott
- Telethon Kids Institute, University of Western Australia, Nedlands
| | - Kyle T Mincham
- Telethon Kids Institute, University of Western Australia, Nedlands.,School of Medicine, University of Western Australia, Crawley
| | - Philip A Stumbles
- Telethon Kids Institute, University of Western Australia, Nedlands.,School of Veterinary and Life Science, Murdoch University, Perth, Australia
| | - Patrick G Holt
- Telethon Kids Institute, University of Western Australia, Nedlands
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12
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Tunheim G, Laake I, Robertson AH, Waalen K, Hungnes O, Naess LM, Cox RJ, Mjaaland S, Trogstad L. Antibody levels in a cohort of pregnant women after the 2009 influenza A(H1N1) pandemic: Waning and association with self-reported severity and duration of illness. Influenza Other Respir Viruses 2018; 13:191-200. [PMID: 30536590 PMCID: PMC6379636 DOI: 10.1111/irv.12623] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 11/05/2018] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND A population-based pregnancy cohort was established in Norway to study potential effects of exposure to the 2009 influenza pandemic or pandemic vaccination during pregnancy. OBJECTIVES We studied maternal A(H1N1)pdm09-specific hemagglutination inhibition (HI)-titer levels and waning in women with influenza-like illness (ILI) in pregnancy compared to vaccinated women. Moreover, we studied the association between HI-titers and self-reported severity and duration of ILI. METHODS HI-titers against the pandemic virus were measured in maternal blood samples obtained at birth, 3-9 months after exposure, and linked with information about pregnancy, influenza and vaccination from national registries and a cohort questionnaire. RESULTS Among 1821 pregnant women included, 43.7% were unvaccinated and 19.3% of these had ILI. HI-titers were low (geometric mean titer (GMT) 11.3) in the unvaccinated women with ILI. Higher HI-titers (GMT 37.8) were measured in the vaccinated women. Estimated HI-titer waning was similar for vaccinated women and women with ILI. Most ILI episodes were moderate and lasted 3-5 days. Women with ILI reporting specific influenza symptoms such as fever or cough had higher HI-titers than women without these symptoms. Women who reported being "very ill" or illness duration of >5 days had higher HI-titers than women reporting less severe illness or illness of shorter duration, respectively. CONCLUSIONS Antibody waning was similar in vaccinated women and women with ILI. More severe ILI or longer duration of illness was associated with higher HI-titers. Most unvaccinated pregnant women with ILI had low HI-titers, probably due to moderate illness and HI-titer waning between exposure and sampling.
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Affiliation(s)
- Gro Tunheim
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway.,K. G. Jebsen Centre for Influenza Vaccine Research, University of Oslo, Oslo, Norway
| | - Ida Laake
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Anna Hayman Robertson
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Kristian Waalen
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Olav Hungnes
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Lisbeth M Naess
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Rebecca J Cox
- K. G. Jebsen Centre for Influenza Vaccine Research, University of Oslo, Oslo, Norway.,The Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Research and Development, Haukeland University Hospital, Bergen, Norway
| | - Siri Mjaaland
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway.,K. G. Jebsen Centre for Influenza Vaccine Research, University of Oslo, Oslo, Norway
| | - Lill Trogstad
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
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13
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Zeng W, Liu X, Liu Z, Zheng Y, Yu T, Fu S, Li X, Zhang J, Zhang S, Ma X, Liu XR, Qin X, Khanniche A, Zhang Y, Tian F, Lin Y. Deep Surveying of the Transcriptional and Alternative Splicing Signatures for Decidual CD8 + T Cells at the First Trimester of Human Healthy Pregnancy. Front Immunol 2018; 9:937. [PMID: 29780389 PMCID: PMC5946033 DOI: 10.3389/fimmu.2018.00937] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 04/16/2018] [Indexed: 01/01/2023] Open
Abstract
Decidual CD8+ (dCD8) T cells have been proposed to play important roles in immune protection against the invading pathogens and in tolerance toward the growing semi-allogeneic fetus during early pregnancy. However, their phenotypic and functional characteristics remain poorly defined. Here, we performed the first analysis of the transcriptional and alternative splicing (AS) signatures for human first-trimester dCD8 T cells using high-throughput mRNA sequencing. Our data revealed that dCD8 T cells have distinct transcriptional and AS landscapes when compared with their autologous peripheral blood CD8+ (pCD8) T counterparts. Furthermore, human dCD8 T cells were observed to contain CD8-Treg and effector-memory T-cell subsets, and display enhanced functionality in terms of degranulation and cytokine production on a per-cell basis. Additionally, we have identified the novel splice junctions that use a high ratio of the non-canonical splicing motif GC-AG and found that AS is not a major contributor to the gene expression-level changes between paired pCD8 and dCD8 T cells. Together, our findings not only provide a comprehensive framework of the transcriptional and AS landscapes but also reveal the functional feature of human dCD8 T cells, which are of great importance in understanding the biology of these cells and the physiology of human healthy pregnancy.
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Affiliation(s)
- Weihong Zeng
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinmei Liu
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhicui Liu
- Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ying Zheng
- Out-Patient Operatingroom, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tiantian Yu
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shaliu Fu
- School of Life Science, Tongji University, Shanghai, China
| | - Xiao Li
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Zhang
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Siming Zhang
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoling Ma
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Rui Liu
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoli Qin
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Asma Khanniche
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fuju Tian
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Lin
- Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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14
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Hansbro PM, Kim RY, Starkey MR, Donovan C, Dua K, Mayall JR, Liu G, Hansbro NG, Simpson JL, Wood LG, Hirota JA, Knight DA, Foster PS, Horvat JC. Mechanisms and treatments for severe, steroid-resistant allergic airway disease and asthma. Immunol Rev 2018; 278:41-62. [PMID: 28658552 DOI: 10.1111/imr.12543] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Severe, steroid-resistant asthma is clinically and economically important since affected individuals do not respond to mainstay corticosteroid treatments for asthma. Patients with this disease experience more frequent exacerbations of asthma, are more likely to be hospitalized, and have a poorer quality of life. Effective therapies are urgently required, however, their development has been hampered by a lack of understanding of the pathological processes that underpin disease. A major obstacle to understanding the processes that drive severe, steroid-resistant asthma is that the several endotypes of the disease have been described that are characterized by different inflammatory and immunological phenotypes. This heterogeneity makes pinpointing processes that drive disease difficult in humans. Clinical studies strongly associate specific respiratory infections with severe, steroid-resistant asthma. In this review, we discuss key findings from our studies where we describe the development of representative experimental models to improve our understanding of the links between infection and severe, steroid-resistant forms of this disease. We also discuss their use in elucidating the mechanisms, and their potential for developing effective therapeutic strategies, for severe, steroid-resistant asthma. Finally, we highlight how the immune mechanisms and therapeutic targets we have identified may be applicable to obesity-or pollution-associated asthma.
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Affiliation(s)
- Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Richard Y Kim
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Chantal Donovan
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Kamal Dua
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jemma R Mayall
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Gang Liu
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Nicole G Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jeremy A Hirota
- James Hogg Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Darryl A Knight
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Paul S Foster
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jay C Horvat
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
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15
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Kedzierski L, Tate MD, Hsu AC, Kolesnik TB, Linossi EM, Dagley L, Dong Z, Freeman S, Infusini G, Starkey MR, Bird NL, Chatfield SM, Babon JJ, Huntington N, Belz G, Webb A, Wark PA, Nicola NA, Xu J, Kedzierska K, Hansbro PM, Nicholson SE. Suppressor of cytokine signaling (SOCS)5 ameliorates influenza infection via inhibition of EGFR signaling. eLife 2017; 6. [PMID: 28195529 PMCID: PMC5354519 DOI: 10.7554/elife.20444] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 02/06/2017] [Indexed: 12/11/2022] Open
Abstract
Influenza virus infections have a significant impact on global human health. Individuals with suppressed immunity, or suffering from chronic inflammatory conditions such as COPD, are particularly susceptible to influenza. Here we show that suppressor of cytokine signaling (SOCS) five has a pivotal role in restricting influenza A virus in the airway epithelium, through the regulation of epidermal growth factor receptor (EGFR). Socs5-deficient mice exhibit heightened disease severity, with increased viral titres and weight loss. Socs5 levels were differentially regulated in response to distinct influenza viruses (H1N1, H3N2, H5N1 and H11N9) and were reduced in primary epithelial cells from COPD patients, again correlating with increased susceptibility to influenza. Importantly, restoration of SOCS5 levels restricted influenza virus infection, suggesting that manipulating SOCS5 expression and/or SOCS5 targets might be a novel therapeutic approach to influenza.
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Affiliation(s)
- Lukasz Kedzierski
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Australia.,Monash University, Clayton, Australia
| | - Alan C Hsu
- Priority Research Centre for Asthma and Respiratory Diseases, Hunter Medical Research Institute and The University of Newcastle, Newcastle, Australia
| | - Tatiana B Kolesnik
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Edmond M Linossi
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Laura Dagley
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Zhaoguang Dong
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Sarah Freeman
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Giuseppe Infusini
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Asthma and Respiratory Diseases, Hunter Medical Research Institute and The University of Newcastle, Newcastle, Australia
| | - Nicola L Bird
- Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Parkville, Australia
| | - Simon M Chatfield
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Jeffrey J Babon
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Nicholas Huntington
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Gabrielle Belz
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Andrew Webb
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Peter Ab Wark
- Priority Research Centre for Asthma and Respiratory Diseases, Hunter Medical Research Institute and The University of Newcastle, Newcastle, Australia
| | - Nicos A Nicola
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Jianqing Xu
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Katherine Kedzierska
- Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Parkville, Australia
| | - Philip M Hansbro
- Priority Research Centre for Asthma and Respiratory Diseases, Hunter Medical Research Institute and The University of Newcastle, Newcastle, Australia
| | - Sandra E Nicholson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
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16
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Dismantling the Taboo against Vaccines in Pregnancy. Int J Mol Sci 2016; 17:ijms17060894. [PMID: 27338346 PMCID: PMC4926428 DOI: 10.3390/ijms17060894] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 05/11/2016] [Accepted: 05/27/2016] [Indexed: 11/16/2022] Open
Abstract
Vaccinating pregnant women in order to protect them, the fetus, and the child has become universal in no way at all. Prejudice in health professionals add to fears of women and their families. Both these feelings are not supported by even the smallest scientific data. Harmlessness for the mother and the child has been observed for seasonal, pandemic, or quadrivalent influenza, mono, combined polysaccharide or conjugated meningococcal or pneumococcal, tetanus toxoid, acellular pertussis, human papillomavirus, cholera, hepatitis A, Japanese encephalitis, rabies, anthrax, smallpox, yellow fever, mumps, measles and rubella combined, typhoid fever, inactivated or attenuated polio vaccines, and Bacillus Calmétte Guerin vaccines. Instead, the beneficial effects of influenza vaccine for the mother and the child as well as of pertussis vaccine for the child have been demonstrated. Obstetrician-gynecologists, general practitioners, and midwives must incorporate vaccination into their standard clinical care. Strong communication strategies effective at reducing parental vaccine hesitancy and approval of regulatory agencies for use of vaccines during pregnancy are needed. It must be clear that the lack of pre-licensure studies in pregnant women and, consequently, the lack of a statement about the use of the vaccine in pregnant women does not preclude its use in pregnancy.
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