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Cappelletti M, Short D, Morselli M, Pellegrini M, Johnson MR, Afshar Y, Kallapur SG, Presicce P. Protocol for isolating amnion cells from human and non-human primate placenta for flow cytometry and transcriptomics. STAR Protoc 2024; 5:103044. [PMID: 38678572 PMCID: PMC11068923 DOI: 10.1016/j.xpro.2024.103044] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/21/2024] [Accepted: 04/12/2024] [Indexed: 05/01/2024] Open
Abstract
The amnion is a thin layer of fetal origin in contact with the amniotic fluid which plays a key role at the feto-maternal interface during pregnancy. Here, we present a protocol for isolation of human and Rhesusmacaque amnion cells. We describe steps for tissue dissection, cell isolation for flow cytometry analysis, and RNA isolation for RNA sequencing library preparation and analysis. This protocol can provide insights into altered immunological pathways during intrauterine infections to develop new therapeutic strategies. For complete details on the use and execution of this protocol, please refer to Presicce et al.1.
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Affiliation(s)
- Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Daniel Short
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Marco Morselli
- Department of Chemistry, Life Sciences and Environmental Sustainability (S.C.V.S.A.), University of Parma, 43124 Parma, Italy
| | - Matteo Pellegrini
- Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Mark R Johnson
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Yalda Afshar
- Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095, USA; Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Suhas G Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095, USA.
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2
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Menon R, Muglia LJ, Levin LH. Review on new approach methods to gain insight into the feto-maternal interface physiology. Front Med (Lausanne) 2023; 10:1304002. [PMID: 38098843 PMCID: PMC10720461 DOI: 10.3389/fmed.2023.1304002] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023] Open
Abstract
Non-human animals represent a large and important feature in the history of biomedical research. The validity of their use, in terms of reproducible outcomes and translational confidence to the human situation, as well as ethical concerns surrounding that use, have been and remain controversial topics. Over the last 10 years, the communities developing microphysiological systems (MPS) have produced new approach method (NAMs) such as organoids and organs-on-a-chip. These alternative methodologies have shown indications of greater reliability and translatability than animal use in some areas, represent more humane substitutions for animals in these settings, and - with continued scientific effort - may change the conduct of basic research, clinical studies, safety testing, and drug development. Here, we present an introduction to these more human-relevant methodologies and suggest how a suite of pregnancy associated feto-maternal interface system-oriented NAMs may be integrated as reliable partial-/full animal replacements for investigators, significantly aid animal-/environmental welfare, and improve healthcare outcomes.
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Affiliation(s)
- Ramkumar Menon
- Department of Obstetrics and Gynecology, Division of Basic Science and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Louis J. Muglia
- The Burroughs Wellcome Fund, Research Triangle Park, NC, United States
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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3
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Presicce P, Cappelletti M, Morselli M, Ma F, Senthamaraikannan P, Protti G, Nadel BB, Aryan L, Eghbali M, Salwinski L, Pithia N, De Franco E, Miller LA, Pellegrini M, Jobe AH, Chougnet CA, Kallapur SG. Amnion responses to intrauterine inflammation and effects of inhibition of TNF signaling in preterm Rhesus macaque. iScience 2023; 26:108118. [PMID: 37953944 PMCID: PMC10637919 DOI: 10.1016/j.isci.2023.108118] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/26/2023] [Accepted: 09/29/2023] [Indexed: 11/14/2023] Open
Abstract
Intrauterine infection/inflammation (IUI) is a frequent complication of pregnancy leading to preterm labor and fetal inflammation. How inflammation is modulated at the maternal-fetal interface is unresolved. We compared transcriptomics of amnion (a fetal tissue in contact with amniotic fluid) in a preterm Rhesus macaque model of IUI induced by lipopolysaccharide with human cohorts of chorioamnionitis. Bulk RNA sequencing (RNA-seq) amnion transcriptomic profiles were remarkably similar in both Rhesus and human subjects and revealed that induction of key labor-mediating genes such as IL1 and IL6 was dependent on nuclear factor κB (NF-κB) signaling and reversed by the anti-tumor necrosis factor (TNF) antibody Adalimumab. Inhibition of collagen biosynthesis by IUI was partially restored by Adalimumab. Interestingly, single-cell transcriptomics, flow cytometry, and immunohistology demonstrated that a subset of amnion mesenchymal cells (AMCs) increase CD14 and other myeloid cell markers during IUI both in the human and Rhesus macaque. Our data suggest that CD14+ AMCs represent activated AMCs at the maternal-fetal interface.
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Affiliation(s)
- Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Marco Morselli
- Department of Molecular, Cell and Developmental Biology Medicine at the University of California Los Angeles, Los Angeles, CA, USA
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
| | - Feiyang Ma
- Department of Molecular, Cell and Developmental Biology Medicine at the University of California Los Angeles, Los Angeles, CA, USA
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
| | - Paranthaman Senthamaraikannan
- Division of Neonatology/Pulmonary Biology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Giulia Protti
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Brian B. Nadel
- Department of Molecular Cellular and Developmental Biology, and Institute for Genomics and Proteomics, University of California Los Angeles, Los Angeles, CA, USA
- California National Primate Research Center, University of California Davis, Davis, CA, USA
| | - Laila Aryan
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Mansoureh Eghbali
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Lukasz Salwinski
- UCLA-DOE Institute of Genomics and Proteomics, University of California Los Angeles, Los Angeles, CA, USA
| | - Neema Pithia
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Emily De Franco
- Department of Obstetrics/Gynecology, Maternal-Fetal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Lisa A. Miller
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis, CA, USA
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology Medicine at the University of California Los Angeles, Los Angeles, CA, USA
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
| | - Alan H. Jobe
- Division of Neonatology/Pulmonary Biology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Claire A. Chougnet
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Suhas G. Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
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Galaz J, Motomura K, Romero R, Liu Z, Garcia-Flores V, Tao L, Xu Y, Done B, Arenas-Hernandez M, Kanninen T, Farias-Jofre M, Miller D, Tarca AL, Gomez-Lopez N. A key role for NLRP3 signaling in preterm labor and birth driven by the alarmin S100B. Transl Res 2023; 259:46-61. [PMID: 37121539 PMCID: PMC10524625 DOI: 10.1016/j.trsl.2023.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 11/10/2022] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/02/2023]
Abstract
Preterm birth remains the leading cause of neonatal morbidity and mortality worldwide. A substantial number of spontaneous preterm births occur in the context of sterile intra-amniotic inflammation, a condition that has been mechanistically proven to be triggered by alarmins. However, sterile intra-amniotic inflammation still lacks treatment. The NLRP3 inflammasome has been implicated in sterile intra-amniotic inflammation; yet, its underlying mechanisms, as well as the maternal and fetal contributions to this signaling pathway, are unclear. Herein, by utilizing a translational and clinically relevant model of alarmin-induced preterm labor and birth in Nlrp3-/- mice, we investigated the role of NLRP3 signaling by using imaging and molecular biology approaches. Nlrp3 deficiency abrogated preterm birth and the resulting neonatal mortality induced by the alarmin S100B by impeding the premature activation of the common pathway of labor as well as by dampening intra-amniotic and fetal inflammation. Moreover, Nlrp3 deficiency altered leukocyte infiltration and functionality in the uterus and decidua. Last, embryo transfer revealed that maternal and fetal Nlrp3 signaling contribute to alarmin-induced preterm birth and neonatal mortality, further strengthening the concept that both individuals participate in the complex process of preterm parturition. These findings provide novel insights into sterile intra-amniotic inflammation, a common etiology of preterm labor and birth, suggesting that the adverse perinatal outcomes resulting from prematurity can be prevented by targeting NLRP3 signaling.
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Affiliation(s)
- Jose Galaz
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Kenichiro Motomura
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Roberto Romero
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan; Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan
| | - Zhenjie Liu
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Valeria Garcia-Flores
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Li Tao
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Yi Xu
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Bogdan Done
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Marcia Arenas-Hernandez
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Tomi Kanninen
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Marcelo Farias-Jofre
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Derek Miller
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Adi L Tarca
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Department of Computer Science, Wayne State University College of Engineering, Detroit, Michigan; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan
| | - Nardhy Gomez-Lopez
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan; Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, Michigan.
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Hu M, Li H, Li G, Wang Y, Liu J, Zhang M, Shen D, Wang X. NETs promote ROS production to induce human amniotic epithelial cell apoptosis via ERK1/2 signaling in spontaneous preterm birth. Am J Reprod Immunol 2023; 89:e13656. [PMID: 36409534 DOI: 10.1111/aji.13656] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 10/22/2022] [Accepted: 11/11/2022] [Indexed: 11/23/2022] Open
Abstract
PROBLEM Premature birth is a common obstetric complication but its pathogenesis is unclear. Inflammation at the maternal-fetal interface in preterm labor leads to the infiltration of neutrophils, which promotes inflammatory responses and induces the degradation of extracellular matrix and cell apoptosis, thus contributing to preterm labor. It is unclear whether neutrophil extracellular traps (NETs), a functional form of neutrophils, are involved in preterm labor. METHODS OF STUDY After collecting amniotic membranes from research objects, we localized NETs by immunofluorescence and evaluated the expression of matrix metalloproteinase (MMP)-9 and MMP-2 by western blotting. Primary human amniotic epithelial cells (hAECs) subjected to treatment with NETs, 5-ethynyl-20-deoxyuridine cell proliferation assay, lactate dehydrogenase (LDH) assay, western blotting, and flow cytometry apoptosis assay were used to determine the effects of NETs on hAECs. We also elucidated possible mechanisms underlying the effects. RESULTS Compared with normal term women, NETs infiltration and MMP-9 expression in the amniotic membrane from preterm women had increased. Thereafter, NETs might suppress the proliferation and promote the apoptosis of hAECs. Furthermore, after NETs treatment, the mitochondrial membrane potential was significantly decreased, ERK1/2 phosphorylation expression was upregulated and reactive oxygen species (ROS) production was increased in hAECs. Changes in cell proliferation, LDH release, and cell apoptosis level due to NETs could be reversed by ROS inhibitor or ERK phosphorylation inhibitors. CONCLUSIONS NETs can promote the apoptosis of hAECs via ERK1/2 pathways dependent on ROS release.
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Affiliation(s)
- Min Hu
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.,Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, Shandong, China
| | - Hao Li
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.,Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, Shandong, China
| | - Guangzhen Li
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Yuan Wang
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.,Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, Shandong, China
| | - Jing Liu
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.,Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, Shandong, China
| | - Meihua Zhang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, Shandong, China
| | - Di Shen
- Department of Obstetrics and Gynaecology, Maternal and Child Health Care Hospital of Shandong Provincial, Jinan, Shandong, China.,Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.,Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, Shandong, China
| | - Xietong Wang
- Department of Obstetrics and Gynaecology, Maternal and Child Health Care Hospital of Shandong Provincial, Jinan, Shandong, China.,Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.,Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, Shandong, China
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6
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Owen JC, Garrick SP, Peterson BM, Berger PJ, Nold MF, Sehgal A, Nold-Petry CA. The role of interleukin-1 in perinatal inflammation and its impact on transitional circulation. Front Pediatr 2023; 11:1130013. [PMID: 36994431 PMCID: PMC10040554 DOI: 10.3389/fped.2023.1130013] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/13/2023] [Indexed: 03/31/2023] Open
Abstract
Preterm birth is defined as delivery at <37 weeks of gestational age (GA) and exposes 15 million infants worldwide to serious early life diseases. Lowering the age of viability to 22 weeks GA entailed provision of intensive care to a greater number of extremely premature infants. Moreover, improved survival, especially at extremes of prematurity, comes with a rising incidence of early life diseases with short- and long-term sequelae. The transition from fetal to neonatal circulation is a substantial and complex physiologic adaptation, which normally happens rapidly and in an orderly sequence. Maternal chorioamnionitis or fetal growth restriction (FGR) are two common causes of preterm birth that are associated with impaired circulatory transition. Among many cytokines contributing to the pathogenesis of chorioamnionitis-related perinatal inflammatory diseases, the potent pro-inflammatory interleukin (IL)-1 has been shown to play a central role. The effects of utero-placental insufficiency-related FGR and in-utero hypoxia may also be mediated, in part, via the inflammatory cascade. In preclinical studies, blocking such inflammation, early and effectively, holds great promise for improving the transition of circulation. In this mini-review, we outline the mechanistic pathways leading to abnormalities in transitional circulation in chorioamnionitis and FGR. In addition, we explore the therapeutic potential of targeting IL-1 and its influence on perinatal transition in the context of chorioamnionitis and FGR.
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Affiliation(s)
- Josephine C. Owen
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
| | - Steven P. Garrick
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
| | - Briana M. Peterson
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
| | - Philip J. Berger
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
| | - Marcel F. Nold
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
- Monash Newborn, Monash Children’s Hospital, Melbourne, VIC, Australia
| | - Arvind Sehgal
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
- Monash Newborn, Monash Children’s Hospital, Melbourne, VIC, Australia
| | - Claudia A. Nold-Petry
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
- Correspondence: Claudia A. Nold-Petry
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7
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Al Gharaibeh FN, Kempton KM, Alder MN. Olfactomedin-4-Positive Neutrophils in Neonates: Link to Systemic Inflammation and Bronchopulmonary Dysplasia. Neonatology 2022; 120:40-48. [PMID: 36549285 PMCID: PMC10010669 DOI: 10.1159/000527902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/01/2022] [Accepted: 10/21/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Little is known about the interplay between neutrophil heterogeneity in neonates in health and disease states. Olfactomedin-4 (OLFM4) marks a subset of neutrophils that have been described in adults and pediatric patients but not neonates, and this subset is thought to play a role in modulating the host inflammatory response. METHODS This is a prospective cohort of neonates who were born between June 2020 and December 2021 at the University of Cincinnati Medical Center NICU. Olfactomedin-4-positive (OLFM4+) neutrophils were identified in the peripheral blood using flow cytometry. RESULTS OLFM4+ neutrophil percentage was not correlated with gestational age or developmental age. Neonates with sepsis had a higher percentage than those without the condition, 66.9% (IQR 24.3-76.9%) versus 21.5% (IQR 10.6-34.7%), respectively, p = 0.0003. At birth, a high percentage of OLFM4+ neutrophils was associated with severe chorioamnionitis at 49.1% (IQR 28.2-61.5%) compared to those without it at 13.7% (IQR 7.7-26.3%), p < 0.0001. Among neonates without sepsis, the percentages of OLFM4+ neutrophils were lower in the BPD/early death group compared to those without BPD, 11.8% (IQR 6.3-29.0%) versus 32.5% (IQR 18.5-46.1%), p = 0.003, and this retained significance in a multiple logistic regression model that included gestational age, birthweight, and race. CONCLUSION This is the first study describing OLFM4+ neutrophils in neonates and it shows that this neutrophil subpopulation is not influenced by gestational age but is elevated in inflammatory conditions such as sepsis and severe chorioamnionitis, and lower percentage at birth is associated with developing bronchopulmonary dysplasia.
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Affiliation(s)
- Faris N Al Gharaibeh
- Division of Neonatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Kristalynn M Kempton
- Division of Critical Care, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Matthew N Alder
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Division of Critical Care, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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8
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Vidal MS, Lintao RCV, Severino MEL, Tantengco OAG, Menon R. Spontaneous preterm birth: Involvement of multiple feto-maternal tissues and organ systems, differing mechanisms, and pathways. Front Endocrinol (Lausanne) 2022; 13:1015622. [PMID: 36313741 PMCID: PMC9606232 DOI: 10.3389/fendo.2022.1015622] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 08/09/2022] [Accepted: 09/22/2022] [Indexed: 11/13/2022] Open
Abstract
Survivors of preterm birth struggle with multitudes of disabilities due to improper in utero programming of various tissues and organ systems contributing to adult-onset diseases at a very early stage of their lives. Therefore, the persistent rates of low birth weight (birth weight < 2,500 grams), as well as rates of neonatal and maternal morbidities and mortalities, need to be addressed. Active research throughout the years has provided us with multiple theories regarding the risk factors, initiators, biomarkers, and clinical manifestations of spontaneous preterm birth. Fetal organs, like the placenta and fetal membranes, and maternal tissues and organs, like the decidua, myometrium, and cervix, have all been shown to uniquely respond to specific exogenous or endogenous risk factors. These uniquely contribute to dynamic changes at the molecular and cellular levels to effect preterm labor pathways leading to delivery. Multiple intervention targets in these different tissues and organs have been successfully tested in preclinical trials to reduce the individual impacts on promoting preterm birth. However, these preclinical trial data have not been effectively translated into developing biomarkers of high-risk individuals for an early diagnosis of the disease. This becomes more evident when examining the current global rate of preterm birth, which remains staggeringly high despite years of research. We postulate that studying each tissue and organ in silos, as how the majority of research has been conducted in the past years, is unlikely to address the network interaction between various systems leading to a synchronized activity during either term or preterm labor and delivery. To address current limitations, this review proposes an integrated approach to studying various tissues and organs involved in the maintenance of normal pregnancy, promotion of normal parturition, and more importantly, contributions towards preterm birth. We also stress the need for biological models that allows for concomitant observation and analysis of interactions, rather than focusing on these tissues and organ in silos.
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Affiliation(s)
- Manuel S. Vidal
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ryan C. V. Lintao
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Mary Elise L. Severino
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ourlad Alzeus G. Tantengco
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ramkumar Menon
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
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9
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Motomura K, Romero R, Galaz J, Tao L, Garcia-Flores V, Xu Y, Done B, Arenas-Hernandez M, Miller D, Gutierrez-Contreras P, Farias-Jofre M, Aras S, Grossman LI, Tarca AL, Gomez-Lopez N. Fetal and maternal NLRP3 signaling is required for preterm labor and birth. JCI Insight 2022; 7:158238. [PMID: 35993366 PMCID: PMC9462488 DOI: 10.1172/jci.insight.158238] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 07/18/2022] [Indexed: 11/17/2022] Open
Affiliation(s)
- Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
- Detroit Medical Center, Detroit, Michigan, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Li Tao
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Valeria Garcia-Flores
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Yi Xu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Bogdan Done
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Marcia Arenas-Hernandez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Derek Miller
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Pedro Gutierrez-Contreras
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marcelo Farias-Jofre
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Siddhesh Aras
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Lawrence I. Grossman
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Adi L. Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Computer Science, Wayne State University College of Engineering, Detroit, Michigan, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan, USA, and Bethesda, Maryland, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, Michigan, USA
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10
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Zucker E, Burd I. P2X7 receptor as a potential therapeutic target for perinatal brain injury associated with preterm birth. Exp Neurol 2022; 357:114207. [PMID: 35985555 DOI: 10.1016/j.expneurol.2022.114207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 11/22/2021] [Revised: 08/09/2022] [Accepted: 08/12/2022] [Indexed: 01/09/2023]
Abstract
Inflammation-induced preterm birth is the leading cause of perinatal mortality and long-term sequelae in surviving children. IL-1β is a major contributor to inflammation-induced preterm labor and its sequelae. It has recently been demonstrated that the cytokine storm and its progression depend on IL-1β release into circulation and that the P2X7 receptor (P2X7R) is the key player of the ATP-driven NLRP3/caspase-1 activation, necessary for the cleavage of pro-IL-1β to its mature form as well as its subsequent secretion. Being a key component to the inflammatory cascade, P2X7R illuminates a new therapeutic avenue to halt progression of inflammation prior to perinatal brain injury. In this review, we summarize the basic role of the P2X7 receptor in the inflammatory signaling cascade and the possibility of it being used as a therapeutic target in perinatal brain injury. We discuss the antagonists and agonists of the receptor as well as its role in other inflammatory diseases, showing the importance of discovering the functions of the receptor.
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Affiliation(s)
- Emily Zucker
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Irina Burd
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA.
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11
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Raia-barjat T, Digonnet M, Giraud A, Ayash T, Vancolen S, Benharouga M, Chauleur C, Alfaidy N, Sébire G. Animal Models of Chorioamnionitis: Considerations for Translational Medicine. Biomedicines 2022; 10:811. [PMID: 35453561 PMCID: PMC9032938 DOI: 10.3390/biomedicines10040811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 02/04/2023] Open
Abstract
Preterm birth is defined as any birth occurring before 37 completed weeks of gestation by the World Health Organization. Preterm birth is responsible for perinatal mortality and long-term neurological morbidity. Acute chorioamnionitis is observed in 70% of premature labor and is associated with a heavy burden of multiorgan morbidities in the offspring. Unfortunately, chorioamnionitis is still missing effective biomarkers and early placento- as well as feto-protective and curative treatments. This review summarizes recent advances in the understanding of the underlying mechanisms of chorioamnionitis and subsequent impacts on the pregnancy outcome, both during and beyond gestation. This review also describes relevant and current animal models of chorioamnionitis used to decipher associated mechanisms and develop much needed therapies. Improved knowledge of the pathophysiological mechanisms underpinning chorioamnionitis based on preclinical models is a mandatory step to identify early in utero diagnostic biomarkers and design novel anti-inflammatory interventions to improve both maternal and fetal outcomes.
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12
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Menon R. Fetal inflammatory response at the fetomaternal interface: A requirement for labor at term and preterm. Immunol Rev 2022; 308:149-167. [PMID: 35285967 DOI: 10.1111/imr.13075] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [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: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 12/20/2022]
Abstract
Human parturition at term and preterm is an inflammatory process synchronously executed by both fetomaternal tissues to transition them from a quiescent state t an active state of labor to ensure delivery. The initiators of the inflammatory signaling mechanism can be both maternal and fetal. The placental (fetal)-maternal immune and endocrine mediated homeostatic imbalances and inflammation are well reported. However, the fetal inflammatory response (FIR) theories initiated by the fetal membranes (amniochorion) at the choriodecidual interface are not well established. Although immune cell migration, activation, and production of proparturition cytokines to the fetal membranes are reported, cellular level events that can generate a unique set of inflammation are not well discussed. This review discusses derangements to fetal membrane cells (physiologically and pathologically at term and preterm, respectively) in response to both endogenous and exogenous factors to generate inflammatory signals. In addition, the mechanisms of inflammatory signal propagation (fetal signaling of parturition) and how these signals cause immune imbalances at the choriodecidual interface are discussed. In addition to maternal inflammation, this review projects FIR as an additional mediator of inflammatory overload required to promote parturition.
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Affiliation(s)
- Ramkumar Menon
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch, Galveston, Texas, USA
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13
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Mohammed S, Qadri SSY, Mir IA, Kondapalli NB, Basak S, Rajkumar H. Fructooligosaccharide ameliorates high-fat induced intrauterine inflammation and improves lipid profile in the hamster offspring. J Nutr Biochem 2021; 101:108925. [PMID: 34843933 DOI: 10.1016/j.jnutbio.2021.108925] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 10/26/2021] [Accepted: 11/16/2021] [Indexed: 01/10/2023]
Abstract
Maternal high-fat diet (HFD) often results in intrauterine and feto-placental inflammation, and increases the risks of fetal programming of metabolic diseases. Intake of prebiotic is reported beneficial. However, its effects on HFD during pregnancy and lactation is not known. We evaluated the maternal intake of fructooligosaccharide (FOS) and its impact on placental inflammation, offspring's adiposity, glucose, and lipid metabolism in their later life. Female Golden Syrian hamsters were fed with a control diet (CD, 26.4 % energy from fat) or HFD (60.7% energy from fat) in the presence or absence of FOS from preconception until lactation. All pups were switched over to CD after lactation and continued until the end. Placental inflammation was upregulated in HFD-fed dam, as measured by a high concentration of hsCRP in the serum and amniotic fluid. Neutrophil infiltration was significantly increased in the decidua through the chorionic layer of the placenta. The expression of pro-inflammatory cytokines such as COX2, NFκβ, IL-8, TGFβ mRNA was increased in the chorioamniotic membrane (P <.05). The HFD/CD hamsters had more adiposity, higher triglyceride, and low HDL at 12 months of age compared to CD/CD (P <.05). However, HFD+FOS/CD-fed hamsters prevented adverse effects such as placental inflammation, neutrophil infiltration, glucose, and lipid profiles in the offspring (P <.05). Anti-inflammatory and lipid-lowering effects of FOS may reduce placental inflammation by lowering neutrophil infiltration and decreasing the production of pro-inflammatory cytokines. Intake of FOS during pregnancy may be beneficial in maintaining lipid metabolism and preventing excess adiposity for mother and their offspring.
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Affiliation(s)
- Shujauddin Mohammed
- Department of Microbiology & Immunology, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad, Telengana, India
| | - Syed Shah Yousuf Qadri
- ICMR-National Animal Resource Facility for Biomedical Research, Hyderabad, Telengana, India
| | - Irfan Ahmad Mir
- ICMR-National Animal Resource Facility for Biomedical Research, Hyderabad, Telengana, India
| | - Narendra Babu Kondapalli
- Department of Microbiology & Immunology, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad, Telengana, India
| | - Sanjay Basak
- Molecular Biology Division, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad, Telengana, India.
| | - Hemalatha Rajkumar
- Department of Microbiology & Immunology, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad, Telengana, India.
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14
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Cappelletti M, Presicce P, Feiyang M, Senthamaraikannan P, Miller LA, Pellegrini M, Sim MS, Jobe AH, Divanovic S, Way SS, Chougnet CA, Kallapur SG. The induction of preterm labor in rhesus macaques is determined by the strength of immune response to intrauterine infection. PLoS Biol 2021; 19:e3001385. [PMID: 34495952 PMCID: PMC8452070 DOI: 10.1371/journal.pbio.3001385] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 01/14/2021] [Revised: 09/20/2021] [Accepted: 08/04/2021] [Indexed: 12/18/2022] Open
Abstract
Intrauterine infection/inflammation (IUI) is a major contributor to preterm labor (PTL). However, IUI does not invariably cause PTL. We hypothesized that quantitative and qualitative differences in immune response exist in subjects with or without PTL. To define the triggers for PTL, we developed rhesus macaque models of IUI driven by lipopolysaccharide (LPS) or live Escherichia coli. PTL did not occur in LPS challenged rhesus macaques, while E. coli–infected animals frequently delivered preterm. Although LPS and live E. coli both caused immune cell infiltration, E. coli–infected animals showed higher levels of inflammatory mediators, particularly interleukin 6 (IL-6) and prostaglandins, in the chorioamnion-decidua and amniotic fluid (AF). Neutrophil infiltration in the chorio-decidua was a common feature to both LPS and E. coli. However, neutrophilic infiltration and IL6 and PTGS2 expression in the amnion was specifically induced by live E. coli. RNA sequencing (RNA-seq) analysis of fetal membranes revealed that specific pathways involved in augmentation of inflammation including type I interferon (IFN) response, chemotaxis, sumoylation, and iron homeostasis were up-regulated in the E. coli group compared to the LPS group. Our data suggest that the intensity of the host immune response to IUI may determine susceptibility to PTL.
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Affiliation(s)
- Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, UCLA Mattel Children’s Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Pietro Presicce
- Divisions of Neonatology and Developmental Biology, UCLA Mattel Children’s Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Ma Feiyang
- Department of Molecular, Cell and Developmental Biology Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
- Institute for Quantitative and Computational Biosciences–Collaboratory, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Paranthaman Senthamaraikannan
- Division of Neonatology and Pulmonary Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Lisa A. Miller
- California National Primate Research Center, University of California Davis, Davis, California, United States of America
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
- Institute for Quantitative and Computational Biosciences–Collaboratory, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Myung S. Sim
- Department of Medicine Statistics Core, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Alan H. Jobe
- Division of Neonatology and Pulmonary Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Senad Divanovic
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Sing Sing Way
- Infectious Diseases, Cincinnati Children’s Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Claire A. Chougnet
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Suhas G. Kallapur
- Divisions of Neonatology and Developmental Biology, UCLA Mattel Children’s Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
- * E-mail:
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15
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Moström MJ, Scheef EA, Sprehe LM, Szeltner D, Tran D, Hennebold JD, Roberts VHJ, Maness NJ, Fahlberg M, Kaur A. Immune Profile of the Normal Maternal-Fetal Interface in Rhesus Macaques and Its Alteration Following Zika Virus Infection. Front Immunol 2021; 12:719810. [PMID: 34394129 PMCID: PMC8358803 DOI: 10.3389/fimmu.2021.719810] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 06/03/2021] [Accepted: 07/05/2021] [Indexed: 12/24/2022] Open
Abstract
The maternal decidua is an immunologically complex environment that balances maintenance of immune tolerance to fetal paternal antigens with protection of the fetus against vertical transmission of maternal pathogens. To better understand host immune determinants of congenital infection at the maternal-fetal tissue interface, we performed a comparative analysis of innate and adaptive immune cell subsets in the peripheral blood and decidua of healthy rhesus macaque pregnancies across all trimesters of gestation and determined changes after Zika virus (ZIKV) infection. Using one 28-color and one 18-color polychromatic flow cytometry panel we simultaneously analyzed the frequency, phenotype, activation status and trafficking properties of αβ T, γδ T, iNKT, regulatory T (Treg), NK cells, B lymphocytes, monocytes, macrophages, and dendritic cells (DC). Decidual leukocytes showed a striking enrichment of activated effector memory and tissue-resident memory CD4+ and CD8+ T lymphocytes, CD4+ Tregs, CD56+ NK cells, CD14+CD16+ monocytes, CD206+ tissue-resident macrophages, and a paucity of B lymphocytes when compared to peripheral blood. t-distributed stochastic neighbor embedding (tSNE) revealed unique populations of decidual NK, T, DC and monocyte/macrophage subsets. Principal component analysis showed distinct spatial localization of decidual and circulating leukocytes contributed by NK and CD8+ T lymphocytes, and separation of decidua based on gestational age contributed by memory CD4+ and CD8+ T lymphocytes. Decidua from 10 ZIKV-infected dams obtained 16-56 days post infection at third (n=9) or second (n=1) trimester showed a significant reduction in frequency of activated, CXCR3+, and/or Granzyme B+ memory CD4+ and CD8+ T lymphocytes and γδ T compared to normal decidua. These data suggest that ZIKV induces local immunosuppression with reduced immune recruitment and impaired cytotoxicity. Our study adds to the immune characterization of the maternal-fetal interface in a translational nonhuman primate model of congenital infection and provides novel insight in to putative mechanisms of vertical transmission.
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Affiliation(s)
- Matilda J Moström
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, United States.,Department of Microbiology and Immunology, Tulane School of Medicine, New Orleans, LA, United States
| | - Elizabeth A Scheef
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, United States
| | - Lesli M Sprehe
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, United States
| | - Dawn Szeltner
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, United States
| | - Dollnovan Tran
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, United States
| | - Jon D Hennebold
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR, United States
| | - Victoria H J Roberts
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR, United States
| | - Nicholas J Maness
- Department of Microbiology and Immunology, Tulane School of Medicine, New Orleans, LA, United States.,Division of Microbiology, Tulane National Primate Research Center, Covington, LA, United States
| | - Marissa Fahlberg
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, United States
| | - Amitinder Kaur
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, United States.,Department of Microbiology and Immunology, Tulane School of Medicine, New Orleans, LA, United States
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16
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Nguyen SM, Wiepz GJ, Schotzko M, Simmons HA, Mejia A, Ludwig KD, Zhu A, Brunner K, Hernando D, Reeder SB, Wieben O, Johnson K, Shah D, Golos TG. Impact of ferumoxytol magnetic resonance imaging on the rhesus macaque maternal-fetal interface†. Biol Reprod 2021; 102:434-444. [PMID: 31511859 DOI: 10.1093/biolre/ioz181] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/05/2019] [Accepted: 09/03/2019] [Indexed: 01/26/2023] Open
Abstract
Ferumoxytol is a superparamagnetic iron oxide nanoparticle used off-label as an intravascular magnetic resonance imaging (MRI) contrast agent. Additionally, ferumoxytol-uptake by macrophages facilitates detection of inflammatory sites by MRI through ferumoxytol-induced image contrast changes. Therefore, ferumoxytol-enhanced MRI holds great potential for assessing vascular function and inflammatory response, critical to determine placental health in pregnancy. This study sought to assess the fetoplacental unit and selected maternal tissues, pregnancy outcomes, and fetal well-being after ferumoxytol administration. In initial developmental studies, seven pregnant rhesus macaques were imaged with or without ferumoxytol administration. Pregnancies went to term with vaginal delivery and infants showed normal growth rates compared to control animals born the same year that did not undergo MRI. To determine the impact of ferumoxytol on the maternal-fetal interface (MFI), fetal well-being, and pregnancy outcome, four pregnant rhesus macaques at ~100 gestational day underwent MRI before and after ferumoxytol administration. Collection of the fetoplacental unit and selected maternal tissues was performed 2-3 days following ferumoxytol administration. A control group that did not receive ferumoxytol or MRI was used for comparison. Iron levels in fetal and MFI tissues did not differ between groups, and there was no significant difference in tissue histopathology with or without exposure to ferumoxytol, and no effect on placental hormone secretion. Together, these results suggest that the use of ferumoxytol and MRI in pregnant rhesus macaques does not negatively impact the MFI and can be a valuable experimental tool in research with this important animal model.
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Affiliation(s)
- Sydney M Nguyen
- Wisconsin National Primate Research Center (WNPRC), Madison, Wisconsin, USA.,Obstetrics & Gynecology, University of Wisconsin Madison School of Medicine, Madison, Wisconsin, USA
| | - Gregory J Wiepz
- Wisconsin National Primate Research Center (WNPRC), Madison, Wisconsin, USA
| | - Michele Schotzko
- Wisconsin National Primate Research Center (WNPRC), Madison, Wisconsin, USA
| | - Heather A Simmons
- Wisconsin National Primate Research Center (WNPRC), Madison, Wisconsin, USA
| | - Andres Mejia
- Wisconsin National Primate Research Center (WNPRC), Madison, Wisconsin, USA
| | - Kai D Ludwig
- Medical Physics, University of Wisconsin Madison, Madison, Wisconsin, USA
| | - Ante Zhu
- Biomedical Engineering, University of Wisconsin Madison, Madison, Wisconsin, USA.,Radiology, University of Wisconsin Madison, Madison, Wisconsin, USA
| | - Kevin Brunner
- Wisconsin National Primate Research Center (WNPRC), Madison, Wisconsin, USA.,Emergency Medicine, University of Wisconsin Madison, Madison, Wisconsin, USA
| | - Diego Hernando
- Medical Physics, University of Wisconsin Madison, Madison, Wisconsin, USA.,Radiology, University of Wisconsin Madison, Madison, Wisconsin, USA
| | - Scott B Reeder
- Medical Physics, University of Wisconsin Madison, Madison, Wisconsin, USA.,Biomedical Engineering, University of Wisconsin Madison, Madison, Wisconsin, USA.,Radiology, University of Wisconsin Madison, Madison, Wisconsin, USA.,Emergency Medicine, University of Wisconsin Madison, Madison, Wisconsin, USA.,Medicine, University of Wisconsin Madison, Madison, Wisconsin, USA, and
| | - Oliver Wieben
- Medical Physics, University of Wisconsin Madison, Madison, Wisconsin, USA.,Radiology, University of Wisconsin Madison, Madison, Wisconsin, USA
| | - Kevin Johnson
- Medical Physics, University of Wisconsin Madison, Madison, Wisconsin, USA.,Radiology, University of Wisconsin Madison, Madison, Wisconsin, USA
| | - Dinesh Shah
- Obstetrics & Gynecology, University of Wisconsin Madison School of Medicine, Madison, Wisconsin, USA
| | - Thaddeus G Golos
- Wisconsin National Primate Research Center (WNPRC), Madison, Wisconsin, USA.,Obstetrics & Gynecology, University of Wisconsin Madison School of Medicine, Madison, Wisconsin, USA.,Comparative Biosciences, University of Wisconsin Madison, Madison, Wisconsin, USA
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17
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Singareddy A, Lee ASE, Sweeney PL, Finkle AE, Williams HL, Buchanan PM, Hillman NH, Koenig JM. Elevated neutrophil-lymphocyte ratios in extremely preterm neonates with histologic chorioamnionitis. J Perinatol 2021; 41:1269-1277. [PMID: 33603107 DOI: 10.1038/s41372-021-00964-4] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/14/2020] [Accepted: 01/21/2021] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Histologic chorioamnionitis (HCA) is a placental inflammation linked to preterm birth and adverse neonatal outcome. The neutrophil-lymphocyte ratio (NLR) can identify various inflammatory disorders, however its utility in HCA is not clear. Our goal was to examine NLR values and HCA diagnoses in at-risk pregnancies and neonates. STUDY DESIGN We retrospectively analyzed the EHR of mothers and preterm (<33 wk GA) neonates with or without HCA (identified by placental histology). The NLR was calculated from complete blood counts in laboring women and in their neonates (0-24 h of life). RESULT In 712 consecutive gestations, 50.8% had HCA (26.5% fetal HCA). The neonatal NLR (0-12 h, 13-24 h) predicted fetal HCA better than chance alone (p = 0.01 and 0.002, respectively). CONCLUSION Early NLR elevation in preterm neonates is consistent with a diagnosis of fetal HCA. The NLR may identify preterm neonates at risk for HCA-related complications.
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Affiliation(s)
- Aashray Singareddy
- Department of Pediatrics, Saint Louis University School of Medicine, St Louis, MO, USA
| | - Ashley Sang Eun Lee
- Department of Pediatrics, Saint Louis University School of Medicine, St Louis, MO, USA
| | - Patrick L Sweeney
- University of Tennessee-Memphis School of Medicine, Memphis, TN, USA
| | - Abigael E Finkle
- Department of Pediatrics, Saint Louis University School of Medicine, St Louis, MO, USA
| | | | - Paula M Buchanan
- Department of Pediatrics, Saint Louis University School of Medicine, St Louis, MO, USA
- Department of Health and Clinical Outcomes Research, Saint Louis University School of Medicine, St Louis, MO, USA
| | - Noah H Hillman
- Department of Pediatrics, Saint Louis University School of Medicine, St Louis, MO, USA
| | - Joyce M Koenig
- Department of Pediatrics, Saint Louis University School of Medicine, St Louis, MO, USA.
- Department of Molecular Microbiology & Immunology, Saint Louis University School of Medicine, St Louis, MO, USA.
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18
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Tong M, Hanna SE, Abrahams VM. Polymicrobial stimulation of human fetal membranes induce neutrophil activation and neutrophil extracellular trap release. J Reprod Immunol 2021; 145:103306. [PMID: 33725528 DOI: 10.1016/j.jri.2021.103306] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/07/2021] [Accepted: 03/01/2021] [Indexed: 11/28/2022]
Abstract
Preterm birth is a major contributor to neonatal mortality and morbidity. While the causes of preterm birth remain incompletely understood, infection is a major risk factor, and chorioamnionitis is commonly observed. Chorioamnionitis is characterized by inflammation and neutrophil infiltration of the fetal membranes (FM). We recently reported that human FMs which had been exposed to low levels of bacterial lipopolysaccharide (LPS) recruit neutrophils and activate them, increasing their secretion of pro-inflammatory cytokines, degranulation of myeloperoxidase (MPO), and release of neutrophil extracellular traps (NETs). Herein, we demonstrate that conditioned media (CM) from viral dsRNA (Poly(I:C))-stimulated FMs also increased neutrophil migration, and induced the secretion of inflammatory IL-8 and the release of NETs. Furthermore, CM from FMs stimulated by a combination of bacterial LPS and Poly(I:C) augmented neutrophil NET release, compared to CM from FMs stimulated with either Poly(I:C) or LPS alone. NETs induced by FMs exposed to Poly(I:C), with or without LPS, were released and degraded quicker than those induced by resting or LPS-stimulated FM-CM. These findings indicate that FMs exposed to viral dsRNA promote neutrophil recruitment, activation and NET formation, similar to FMs exposed to bacterial LPS alone. However, in response to FM polymicrobial stimulation the levels and kinetics of NET release are augmented. This work builds upon our understanding of how infections at the maternal-fetal interface may affect neutrophil function.
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Affiliation(s)
- Mancy Tong
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Sarah E Hanna
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Vikki M Abrahams
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
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19
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Tersigni C, Vatish M, D'Ippolito S, Scambia G, Di Simone N. Abnormal uterine inflammation in obstetric syndromes: molecular insights into the role of chemokine decoy receptor D6 and inflammasome NLRP3. Mol Hum Reprod 2021; 26:111-121. [PMID: 32030415 DOI: 10.1093/molehr/gaz067] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 10/04/2019] [Revised: 12/12/2019] [Indexed: 12/12/2022] Open
Abstract
The adaptation of the uterine environment into a favorable immunological and inflammatory milieu is a physiological process needed in normal pregnancy. A uterine hyperinflammatory state, whether idiopathic or secondary to hormonal or organic uterine disorders (polycystic ovary syndromes, endometriosis/adenomyosis and fibroids), negatively influences the interactions between decidua and trophoblast, early in gestation, and between chorion and decidua later in pregnancy. Abnormal activation of uterine inflammatory pathways not only contributes to the pathogenesis of the obstetric syndromes, i.e. recurrent pregnancy loss (RPL), pre-term delivery (PTD) and pre-eclampsia (PE), but also to correlates with severity. In this review, we summarize recent advances in the knowledge of uterine molecular mechanisms of inflammatory modulation in normal pregnancy and obstetric syndromes (RPL, PTD and PE). In particular, we focus on two regulators of uterine/placental inflammation: the NLRP3 inflammasome and the chemokines decoy receptor D6. We performed comprehensive review of the literature in PubMed and Google Scholar databases from 1994 to 2018. The available evidence suggests that: (i) the expression of inflammasome NLRP3 is increased in the endometrium of women with unexplained RPL, in the chorioamniotic membranes of women with PTL and in the placenta of women with PE; (ii) there is a role for abnormal expression and function of D6 decoy receptor at the feto-maternal interface in cases of RPL and PTD and (iii) the function of placental D6 decoy receptor is impaired in PE. A wider comprehension of the inflammatory molecular mechanisms involved in the pathogenesis of the obstetric syndromes might lead to the identification of new potential therapeutic targets.
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Affiliation(s)
- Chiara Tersigni
- U.O.C. di Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome 00168, Italy.,Università Cattolica del Sacro Cuore, Rome 00168, Italy
| | - Manu Vatish
- Nuffield Department of Women's & Reproductive Health, University of Oxford, OX3 9DU, Oxford, UK
| | - Silvia D'Ippolito
- U.O.C. di Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome 00168, Italy.,Università Cattolica del Sacro Cuore, Rome 00168, Italy
| | - Giovanni Scambia
- Università Cattolica del Sacro Cuore, Rome 00168, Italy.,U.O.C. di Ginecologia Oncologica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome 00168, Italy
| | - Nicoletta Di Simone
- U.O.C. di Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome 00168, Italy.,Università Cattolica del Sacro Cuore, Rome 00168, Italy
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20
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Tong M, Smith AH, Abrahams VM. Activated Neutrophils Propagate Fetal Membrane Inflammation and Weakening through ERK and Neutrophil Extracellular Trap-Induced TLR-9 Signaling. J Immunol 2021; 206:1039-1045. [PMID: 33472905 DOI: 10.4049/jimmunol.2001268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/28/2020] [Indexed: 12/19/2022]
Abstract
Preterm birth is associated with significant neonatal mortality and morbidity worldwide. Chorioamnionitis, inflammation of the fetal membranes (FMs), is a major risk factor and is characterized by neutrophil infiltration. However, the role of neutrophils at the FMs remains unclear. We recently reported that FMs exposed to bacterial LPS recruited more neutrophils compared with resting FMs and activated them to degranulate and release reactive oxygen species, chemokines/cytokines, and neutrophil extracellular traps. We posit that under resting conditions, neutrophils play a protective surveillance role, whereas during infection/inflammation, they induce FM tissue injury. To test this, human FM explants were exposed to neutrophil conditioned media (CM). We demonstrate that CM from neutrophils exposed to resting FM-CM did not affect FM viability or function. Conversely, CM from neutrophils activated by LPS-stimulated FM-CM significantly increased FM secretion of inflammatory IL-6, IL-8, GRO-α, and the markers of membrane weakening, MMP-9 and PGE2 This FM response was partially mediated by ERK signaling and neutrophil extracellular traps through the activation of the DNA sensor, TLR-9. Thus, neutrophils recruited by FMs during infection can propagate FM inflammation and weakening, acting in a feed-forward mechanism to propagate tissue injury at the maternal-fetal interface, increasing the risk of premature FM rupture and preterm birth in women with intrauterine infection.
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Affiliation(s)
- Mancy Tong
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510
| | - Abigail H Smith
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510
| | - Vikki M Abrahams
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510
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21
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Menon R, Behnia F, Polettini J, Richardson LS. Novel pathways of inflammation in human fetal membranes associated with preterm birth and preterm pre-labor rupture of the membranes. Semin Immunopathol 2020; 42:431-450. [PMID: 32785751 DOI: 10.1007/s00281-020-00808-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [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: 06/09/2020] [Accepted: 07/16/2020] [Indexed: 12/13/2022]
Abstract
Spontaneous preterm birth (PTB) and preterm pre-labor rupture of the membranes (pPROM) are major pregnancy complications. Although PTB and pPROM have common etiologies, they arise from distinct pathophysiologic pathways. Inflammation is a common underlying mechanism in both conditions. Balanced inflammation is required for fetoplacental growth; however, overwhelming inflammation (physiologic at term and pathologic at preterm) can lead to term and preterm parturition. A lack of effective strategies to control inflammation and reduce the risk of PTB and pPROM suggests that there are several modes of the generation of inflammation which may be dependent on the type of uterine tissue. The avascular fetal membrane (amniochorion), which provides structure, support, and protection to the intrauterine cavity, is one of the key contributors of inflammation. Localized membrane inflammation helps tissue remodeling during pregnancy. Two unique mechanisms that generate balanced inflammation are the progressive development of senescence (aging) and cyclic cellular transitions: epithelial to mesenchymal (EMT) and mesenchymal to epithelial (MET). The intrauterine build-up of oxidative stress at term or in response to risk factors (preterm) can accelerate senescence and promote a terminal state of EMT, resulting in the accumulation of inflammation. Inflammation degrades the matrix and destabilizes membrane function. Inflammatory mediators from damaged membranes are propagated via extracellular vesicles (EV) to maternal uterine tissues and transition quiescent maternal uterine tissues into an active state of labor. Membrane inflammation and its propagation are fetal signals that may promote parturition. This review summarizes the mechanisms of fetal membrane cellular senescence, transitions, and the generation of inflammation that contributes to term and preterm parturitions.
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Affiliation(s)
- Ramkumar Menon
- Division of Maternal-Fetal Medicine and Perinatal Research Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine & Perinatal Research, The University of Texas Medical Branch at Galveston, MRB 11.138, 301 301 University Blvd, Galveston, TX, 77555-1062, USA.
| | - Faranak Behnia
- Department of Obstetrics, Gynecology, and Reproductive Sciences, McGovern Medical School at the University of Texas Health Science Center at Houston, UT Health, Houston, Texas, USA
| | - Jossimara Polettini
- Universidade Federal da Fronteira Sul, Campus Passo Fundo, Rua Capitão Araujo, 20, Centro, Passo Fundo, Rio Grande do Sul, Brazil
| | - Lauren S Richardson
- Division of Maternal-Fetal Medicine and Perinatal Research Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine & Perinatal Research, The University of Texas Medical Branch at Galveston, MRB 11.138, 301 301 University Blvd, Galveston, TX, 77555-1062, USA
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22
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Leimert KB, Verstraeten BSE, Messer A, Nemati R, Blackadar K, Fang X, Robertson SA, Chemtob S, Olson DM. Cooperative effects of sequential PGF2α and IL-1β on IL-6 and COX-2 expression in human myometrial cells†. Biol Reprod 2020; 100:1370-1385. [PMID: 30794283 DOI: 10.1093/biolre/ioz029] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 06/26/2018] [Revised: 10/17/2018] [Accepted: 02/20/2019] [Indexed: 12/15/2022] Open
Abstract
The change from the state of pregnancy to the state of parturition, which we call uterine transitioning, requires the actions of inflammatory mediators and results in an activated uterus capable of performing the physiology of labor. Interleukin (IL)-1β and prostaglandin (PG)F2α are two key mediators implicated in preparing the uterus for labor by regulating the expression of uterine activation proteins (UAPs) and proinflammatory cytokines and chemokines. To investigate this process, primary human myometrial smooth muscle cells (HMSMC) isolated from the lower segment of women undergoing elective cesarean sections at term (not in labor) were used to test the inflammatory cytokine and UAP outputs induced by PGF2α and IL-1β alone or in sequential combinations. PGF2α and IL-1β regulate mRNA abundance of the PGF2α receptor FP, the IL-1 receptor system, interleukin 6, and other UAPs (OXTR, COX2), driving positive feedback interactions to further amplify their own proinflammatory effects. Sequential stimulation of HMSMC by PGF2α and IL-1β in either order results in amplified upregulation of IL-6 and COX-2 mRNA and protein, compared to their effects individually. These profound increases were unique to myometrium and not observed with stimulation of human fetal membrane explants. These results suggest that PGF2α and IL-1β act cooperatively upstream in the birth cascade to maximize amplification of IL-6 and COX-2, to build inflammatory load and thereby promote uterine transition. Targeting PGF2α or IL-1β, their actions, or intermediates (e.g. IL-6) would be an effective therapeutic intervention for preterm birth prevention or delay.
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Affiliation(s)
- Kelycia B Leimert
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
| | | | - Angela Messer
- Department of Obstetrics, Gynecology and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Rojin Nemati
- Department of Obstetrics, Gynecology and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Kayla Blackadar
- Department of Obstetrics, Gynecology and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Xin Fang
- Department of Obstetrics, Gynecology and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Sarah A Robertson
- Department of Obstetrics and Gynecology, University of Adelaide, Adelaide, South Australia, Australia
| | - Sylvain Chemtob
- Department of Pediatrics, Ophthalmology, and Pharmacology, CHU Sainte-Justine Research Center, Montréal, Quebec, Canada
| | - David M Olson
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.,Department of Obstetrics, Gynecology and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
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23
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Toothaker JM, Presicce P, Cappelletti M, Stras SF, McCourt CC, Chougnet CA, Kallapur SG, Konnikova L. Immune Cells in the Placental Villi Contribute to Intra-amniotic Inflammation. Front Immunol 2020; 11:866. [PMID: 32528468 PMCID: PMC7256198 DOI: 10.3389/fimmu.2020.00866] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 01/31/2020] [Accepted: 04/15/2020] [Indexed: 01/22/2023] Open
Abstract
Intra-amniotic (IA) inflammation is associated with significant morbidities for both the mother and the fetus. Prior studies have illustrated many of the effects of IA inflammation on the uterine lining (decidua) and membranous layers of the placenta at the fetal–maternal interface. However, much less is known about the immunological response occurring within the villous placenta. Using a rhesus macaque model of lipopolysaccharide (LPS)-induced IA inflammation, we showed that pregnancy-matched choriodecidua and villi have distinct immunological profiles in rhesus pregnancies. In the choriodecidua, we show that the abundance of neutrophils, multiple populations of antigen-presenting cells, and two populations of natural killer (NK) cells changes with prenatal IA LPS exposure. In contrast, in immune cells within the villous placenta we observed alterations in the abundance of B cells, monocytes, and CD8 T cells. Prior work has illustrated that IA inflammation leads to an increase in tumor necrosis factor alpha (TNFα) at the fetal–maternal interface. In this study, pretreatment with a TNFα blockade partially reversed inflammation in the placental villi. Furthermore, we report that immune cells in the villous placenta sensed LPS during our experimental window, and subsequently activated T cells to produce proinflammatory cytokines. Moreover, this study is the first report of memory T cells in third-trimester non-human primate placental villi and provides evidence that manipulation of immune cells in the villi at the fetal–maternal interface should be considered as a potential therapeutic target for IA inflammation.
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Affiliation(s)
- Jessica M Toothaker
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, United States
| | - Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, United States
| | - Stephanie F Stras
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, United States.,Division of Newborn Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Collin C McCourt
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, United States.,Division of Newborn Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Suhas G Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, United States
| | - Liza Konnikova
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, United States.,Division of Newborn Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, United States.,Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Pediatrics, Yale University, New Haven, CT, United States
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24
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Gomez-Lopez N, Motomura K, Miller D, Garcia-Flores V, Galaz J, Romero R. Inflammasomes: Their Role in Normal and Complicated Pregnancies. J Immunol 2020; 203:2757-2769. [PMID: 31740550 DOI: 10.4049/jimmunol.1900901] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/27/2019] [Indexed: 12/14/2022]
Abstract
Inflammasomes are cytoplasmic multiprotein complexes that coordinate inflammatory responses, including those that take place during pregnancy. Inflammasomes and their downstream mediators caspase-1 and IL-1β are expressed by gestational tissues (e.g., the placenta and chorioamniotic membranes) during normal pregnancy. Yet, only the activation of the NLRP3 inflammasome in the chorioamniotic membranes has been partially implicated in the sterile inflammatory process of term parturition. In vivo and ex vivo studies have consistently shown that the activation of the NLRP3 inflammasome is a mechanism whereby preterm labor and birth occur in the context of microbial- or alarmin-induced inflammation. In the placenta, the activation of the NLRP3 inflammasome is involved in the pathogenesis of preeclampsia and other pregnancy syndromes associated with placental inflammation. This evidence suggests that inhibition of the NLRP3 inflammasome or its downstream mediators may foster the development of novel anti-inflammatory therapies for the prevention or treatment of pregnancy complications.
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Affiliation(s)
- Nardhy Gomez-Lopez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, and Detroit, MI 48201; .,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201.,Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Kenichiro Motomura
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, and Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Derek Miller
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, and Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Valeria Garcia-Flores
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, and Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Jose Galaz
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, and Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, and Detroit, MI 48201.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI 48824.,Center for Molecular Obstetrics and Genetics, Wayne State University, Detroit, MI 48201.,Detroit Medical Center, Detroit, MI 48201; and.,Department of Obstetrics and Gynecology, Florida International University, Miami, FL 33199
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25
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Abstract
Acute chorioamnionitis is characterized by neutrophilic infiltration and inflammation at the maternal fetal interface. It is a relatively common complication of pregnancy and can have devastating consequences including preterm labor, maternal infections, fetal infection/inflammation, fetal lung, brain, and gastrointestinal tract injury. In this review, we will discuss current understanding of the pathogenesis, immunobiology, and mechanisms of this condition. Most commonly, acute chorioamnionitis is a result of ascending infection with relatively low-virulence organisms such as the Ureaplasma species. Furthermore, recent vaginal microbiome studies suggest that there is a link between vaginal dysbiosis, vaginal inflammation, and ascending infection. Although less common, microorganisms invading the maternal-fetal interface via hematogenous route (e.g., Zika virus, Cytomegalovirus, and Listeria) can cause placental villitis and severe fetal inflammation and injury. We will provide an overview of the knowledge gleaned from different animal models of acute chorioamnionitis and the role of different immune cells in different maternal-fetal compartments. Lastly, we will discuss how infectious agents can break the maternal tolerance of fetal allograft during pregnancy and highlight the novel future therapeutic approaches.
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Affiliation(s)
- Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, United States
| | - Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, United States
| | - Suhas G Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, United States
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Presicce P, Cappelletti M, Senthamaraikannan P, Ma F, Morselli M, Jackson CM, Mukherjee S, Miller LA, Pellegrini M, Jobe AH, Chougnet CA, Kallapur SG. TNF-Signaling Modulates Neutrophil-Mediated Immunity at the Feto-Maternal Interface During LPS-Induced Intrauterine Inflammation. Front Immunol 2020; 11:558. [PMID: 32308656 PMCID: PMC7145904 DOI: 10.3389/fimmu.2020.00558] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 12/23/2019] [Accepted: 03/11/2020] [Indexed: 01/10/2023] Open
Abstract
Accumulation of activated neutrophils at the feto-maternal interface is a defining hallmark of intrauterine inflammation (IUI) that might trigger an excessive immune response during pregnancy. Mechanisms responsible of this massive neutrophil recruitment are poorly investigated. We have previously showed that intraamniotic injection of LPS in rhesus macaques induced a neutrophil predominant inflammatory response similar to that seen in human IUI. Here, we demonstrate that anti-TNF antibody (Adalimumab) inhibited ~80% of genes induced by LPS involved in inflammatory signaling and innate immunity in chorio-decidua neutrophils. Consistent with the gene expression data, TNF-blockade decreased LPS-induced neutrophil accumulation and activation at the feto-maternal interface. We also observed a reduction in IL-6 and other pro-inflammatory cytokines but not prostaglandins concentrations in the amniotic fluid. Moreover, TNF-blockade decreased mRNA expression of inflammatory cytokines in the chorio-decidua but not in the uterus, suggesting that inhibition of TNF-signaling decreased the inflammation in a tissue-specific manner within the uterine compartment. Taken together, our results demonstrate a predominant role for TNF-signaling in modulating the neutrophilic infiltration at the feto-maternal interface during IUI and suggest that blockade of TNF-signaling could be considered as a therapeutic approach for IUI, the major leading cause of preterm birth.
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Affiliation(s)
- Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Paranthaman Senthamaraikannan
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Feiyang Ma
- Department of Molecular, Cell and Developmental Biology Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Marco Morselli
- Department of Molecular, Cell and Developmental Biology Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Institute for Quantitative and Computational Biosciences-Collaboratory, University of California, Los Angeles, Los Angeles, CA, United States
| | - Courtney M Jackson
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Shibabrata Mukherjee
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Lisa A Miller
- California National Primate Research Center, University of California, Davis, Davis, CA, United States.,Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Institute for Quantitative and Computational Biosciences-Collaboratory, University of California, Los Angeles, Los Angeles, CA, United States
| | - Alan H Jobe
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Suhas G Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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Fisher AL, Sangkhae V, Presicce P, Chougnet CA, Jobe AH, Kallapur SG, Tabbah S, Buhimschi CS, Buhimschi IA, Ganz T, Nemeth E. Fetal and amniotic fluid iron homeostasis in healthy and complicated murine, macaque, and human pregnancy. JCI Insight 2020; 5:135321. [PMID: 31990688 DOI: 10.1172/jci.insight.135321] [Citation(s) in RCA: 18] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 01/22/2020] [Indexed: 12/21/2022] Open
Abstract
Adequate iron supply during pregnancy is essential for fetal development. However, how fetal or amniotic fluid iron levels are regulated during healthy pregnancy, or pregnancies complicated by intraamniotic infection or inflammation (IAI), is unknown. We evaluated amniotic fluid and fetal iron homeostasis in normal and complicated murine, macaque, and human pregnancy. In mice, fetal iron endowment was affected by maternal iron status, but amniotic fluid iron concentrations changed little during maternal iron deficiency or excess. In murine and macaque models of inflamed pregnancy, the fetus responded to maternal systemic inflammation or IAI by rapidly upregulating hepcidin and lowering iron in fetal blood, without altering amniotic fluid iron. In humans, elevated cord blood hepcidin with accompanying hypoferremia was observed in pregnancies with antenatal exposure to IAI compared with those that were nonexposed. Hepcidin was also elevated in human amniotic fluid from pregnancies with IAI compared with those without IAI, but amniotic fluid iron levels did not differ between the groups. Our studies in mice, macaques, and humans demonstrate that amniotic fluid iron is largely unregulated but that the rapid induction of fetal hepcidin by inflammation and consequent fetal hypoferremia are conserved mechanisms that may be important in fetal host defense.
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Affiliation(s)
- Allison L Fisher
- Molecular, Cellular and Integrative Physiology Graduate Program, Graduate Programs in Bioscience.,Center for Iron Disorders, and
| | | | - Pietro Presicce
- Neonatal-Perinatal Medicine, Department of Pediatrics, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation.,University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Alan H Jobe
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation, Cincinnati, Ohio, USA
| | - Suhas G Kallapur
- Neonatal-Perinatal Medicine, Department of Pediatrics, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Sammy Tabbah
- Cincinnati Fetal Center, Cincinnati Children's Hospital Medical Center and Department of Obstetrics and Gynecology, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Catalin S Buhimschi
- Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Irina A Buhimschi
- Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
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Schwenkel G, Romero R, Slutsky R, Motomura K, Hsu CD, Gomez-Lopez N. HSP70: an alarmin that does not induce high rates of preterm birth but does cause adverse neonatal outcomes. J Matern Fetal Neonatal Med 2020; 34:4110-4118. [PMID: 31906756 DOI: 10.1080/14767058.2019.1706470] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Objective: Preterm labor and birth are strongly associated with sterile intra-amniotic inflammation, a clinical condition that is proposed to be initiated by danger signals, or alarmins. The aim of this study was to investigate whether the intra-amniotic administration of the alarmin heat shock protein 70 (HSP70) induces preterm labor/birth and adverse neonatal outcomes.Methods: Pregnant mice received an intra-amniotic injection of 200 ng (n = 8), 400 ng (n = 6), 500 ng (n = 10), or 1 µg of HSP70 (n = 6). Control mice were injected with saline (n = 10). Following injection, the rates of preterm labor/birth and neonatal mortality were recorded. Neonatal weights at weeks 1, 2, and 3 were also recorded.Results: The intra-amniotic injection of 400 ng [late preterm birth 16.7 ± 16.7% (1/6)], 500 ng [early and late preterm birth 10 ± 10% (1/10) each], or 1 µg [early preterm birth 16.7 ± 16.7% (1/6)] of HSP70 induced low rates of preterm/birth. However, the intra-amniotic injection of 500 ng or 1 µg of HSP70 induced significantly higher rates of neonatal mortality compared to controls [saline 14.2% (10/74), 200 ng 9.8% (6/61), 400 ng 17.9% (9/45), 500 ng 28.8% (23/78), and 1 µg 21.4% (13/49)]. Neonates born to dams injected with 200, 500 ng, or 1 µg HSP70 were leaner than controls (p ≤ .05).Conclusion: Intra-amniotic administration of the alarmin HSP70 did not induce high rates of preterm labor/birth; yet, it did indeed result in adverse neonatal outcomes.
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Affiliation(s)
- George Schwenkel
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Rebecca Slutsky
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA, and Detroit, MI, USA
| | - Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Chaur-Dong Hsu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI, USA
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Zhu A, Reeder SB, Johnson KM, Nguyen SM, Fain SB, Bird IM, Golos TG, Wieben O, Shah DM, Hernando D. Quantitative ferumoxytol-enhanced MRI in pregnancy: A feasibility study in the nonhuman primate. Magn Reson Imaging 2020; 65:100-108. [PMID: 31655139 PMCID: PMC6956847 DOI: 10.1016/j.mri.2019.10.006] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 10/14/2019] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To assess the feasibility of ferumoxytol-enhanced MRI in pregnancy with a nonhuman primate model. MATERIALS AND METHODS In this prospective study, eleven pregnant rhesus macaques at day 98 ± 5 of gestation were divided into three groups, untreated control (UC) (n = 3), saline control (SC) (n = 4) and interleukin 1 beta (IL-1β) treated (IT) (n = 4), which were administered with either saline or IL-1β into the amniotic fluid. All animals were imaged at multiple time points before and after ferumoxytol administration (4 mg/kg). Longitudinal R2* and susceptibility of tissues were obtained using region-of-interest analysis and the longitudinal changes were assessed using linear mixed models and Student's t-test. RESULTS In fetuses, a slope of 0.3 s-1/day (P = 0.008), 0.00 ppm/day (P = 0.699) and - 0.2 s-1/day (P = 0.023) was observed in liver R2*, liver susceptibility, and lung R2*, respectively. In placentas, R2* and susceptibility increased immediately after ferumoxytol administration (P < 0.001) and decreased to baseline within two days. The mean change from baseline showed no significant difference between the SC group and the IT group at all scan time points. In maternal livers, R2* increased immediately after ferumoxytol administration, further increased at one-day, and then decreased but remained elevated (P < 0.001). The mean change from baseline showed no significant difference between the SC group and the IT group at all scan time points. CONCLUSIONS This work demonstrates the feasibility of quantitative ferumoxytol-enhanced MRI to measure dynamics of ferumoxytol delivery and washout in the placenta. Stable MRI measurements indicated no evidence of iron deposition in fetal tissues of nonhuman primates after maternal ferumoxytol exposure.
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Affiliation(s)
- Ante Zhu
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA; Department of Radiology, University of Wisconsin, Madison, WI, USA
| | - Scott B Reeder
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA; Department of Radiology, University of Wisconsin, Madison, WI, USA; Department of Medical Physics, University of Wisconsin, Madison, WI, USA; Department of Medicine, University of Wisconsin, Madison, WI, USA; Department of Emergency Medicine, University of Wisconsin, Madison, WI, USA
| | - Kevin M Johnson
- Department of Radiology, University of Wisconsin, Madison, WI, USA; Department of Medical Physics, University of Wisconsin, Madison, WI, USA
| | - Sydney M Nguyen
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI, USA; Department of Obstetrics and Gynecology, University of Wisconsin, Madison, WI, USA
| | - Sean B Fain
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA; Department of Radiology, University of Wisconsin, Madison, WI, USA; Department of Medical Physics, University of Wisconsin, Madison, WI, USA
| | - Ian M Bird
- Department of Obstetrics and Gynecology, University of Wisconsin, Madison, WI, USA
| | - Thaddeus G Golos
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI, USA; Department of Obstetrics and Gynecology, University of Wisconsin, Madison, WI, USA; Department of Comparative Biosciences, University of Wisconsin, Madison, WI, USA
| | - Oliver Wieben
- Department of Radiology, University of Wisconsin, Madison, WI, USA; Department of Medical Physics, University of Wisconsin, Madison, WI, USA
| | - Dinesh M Shah
- Department of Obstetrics and Gynecology, University of Wisconsin, Madison, WI, USA
| | - Diego Hernando
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA; Department of Radiology, University of Wisconsin, Madison, WI, USA; Department of Medical Physics, University of Wisconsin, Madison, WI, USA; Department of Electrical and Computer Engineering, University of Wisconsin, Madison, WI, USA.
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Abstract
Preterm birth is a serious global health problem that affects 5-18% of pregnancies worldwide. In addition to being the major cause of neonatal mortality and morbidity, preterm birth is associated with short term and long term complications in the offspring. Despite this, the causes and pathogenesis of preterm birth remain unclear. Neutrophils are innate immune cells that infiltrate the maternal-fetal interface during normal parturition and their accumulation is dramatically increased during preterm birth, especially in the presence of an infection. Indeed, a defining feature of chorioamnionitis (inflammation of the chorioamnionic fetal membranes) that is associated with more than 40% of preterm births, is neutrophil accumulation. While these cells may play an important role during normal term parturition as well as preterm birth, their functions at the maternal-fetal interface are unclear. This review will provide a broad overview of the relevant studies to enable a better understanding of the roles of neutrophils during normal parturition and preterm birth.
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Gomez-Lopez N, Romero R, Galaz J, Xu Y, Panaitescu B, Slutsky R, Motomura K, Gill N, Para R, Pacora P, Jung E, Hsu CD. Cellular immune responses in amniotic fluid of women with preterm labor and intra-amniotic infection or intra-amniotic inflammation. Am J Reprod Immunol 2019; 82:e13171. [PMID: 31323170 DOI: 10.1111/aji.13171] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [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: 04/28/2019] [Revised: 07/05/2019] [Accepted: 07/15/2019] [Indexed: 12/12/2022] Open
Abstract
PROBLEM Preterm birth is commonly preceded by preterm labor, a syndrome that is causally linked to both intra-amniotic infection and intra-amniotic inflammation. However, the stereotypical cellular immune responses in these two clinical conditions are poorly understood. METHOD OF STUDY Amniotic fluid samples (n = 26) were collected from women diagnosed with preterm labor and intra-amniotic infection (amniotic fluid IL-6 concentrations ≥2.6 ng/mL and culturable microorganisms, n = 10) or intra-amniotic inflammation (amniotic fluid IL-6 concentrations ≥2.6 ng/mL without culturable microorganisms, n = 16). Flow cytometry was performed to evaluate the phenotype and number of amniotic fluid leukocytes. Amniotic fluid concentrations of classical pro-inflammatory cytokines, type 1 and type 2 cytokines, and T-cell chemokines were determined using immunoassays. RESULTS Women with spontaneous preterm labor and intra-amniotic infection had (a) a greater number of total leukocytes, including neutrophils and monocytes/macrophages, in amniotic fluid; (b) a higher number of total T cells and CD4+ T cells, but not CD8+ T cells or B cells, in amniotic fluid; and (c) increased amniotic fluid concentrations of IL-6, IL-1β, and IL-10, compared to those with intra-amniotic inflammation. However, no differences in amniotic fluid concentrations of T-cell cytokines and chemokines were observed between these two clinical conditions. CONCLUSION The cellular immune responses observed in women with preterm labor and intra-amniotic infection are more severe than in those with intra-amniotic inflammation, and neutrophils, monocytes/macrophages, and CD4+ T cells are the main immune cells responding to microorganisms that invade the amniotic cavity. These findings provide insights into the intra-amniotic immune mechanisms underlying the human syndrome of preterm labor.
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Affiliation(s)
- Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Immunology, Microbiology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA.,Detroit Medical Center, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Florida International University, Miami, FL, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Yi Xu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Bogdan Panaitescu
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Rebecca Slutsky
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA
| | - Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Navleen Gill
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Robert Para
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Percy Pacora
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Eunjung Jung
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Chaur-Dong Hsu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U. S. Department of Health and Human Services, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA
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Fedorka CE, Ball BA, Scoggin KE, Loux SC, Troedsson MHT, Adams AA. The feto-maternal immune response to equine placentitis. Am J Reprod Immunol 2019; 82:e13179. [PMID: 31373743 DOI: 10.1111/aji.13179] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 04/30/2019] [Revised: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 12/17/2022] Open
Abstract
PROBLEM Ascending placentitis is one of the leading causes of abortion in the horse. Minimal work has focused on its effect on fetal fluids or the antenatal immune response of the fetus. METHODOLOGY Placentitis was induced via transcervical inoculation of Streptococcus equi ssp Zooepidemicus, and fluids/serum/tissues were collected 4-6 days later following euthanasia. Cytokine concentrations were detected using a multiplex immunoassay within fetal fluids (amniotic and allantoic) and serum (maternal and fetal) in inoculated and control mares. In addition, tissues from fetal (spleen, liver, lung, umbilicus, amnioallantois) and maternal (spleen, liver, lung, chorioallantois, endometrium) origin were analyzed in inoculated and control mares utilizing qPCR for expression of cytokines. RESULTS No difference in cytokine concentrations in maternal or fetal serum was noted between inoculated and control mares. Concentrations of IL-1β, IL-6, IL-10, and GRO were upregulated in the amniotic fluid following inoculation, with a trend toward higher IL-6 concentration in allantoic fluid. The amnioallantoic tissue separating the two fluids had higher expression of IL-1β and IL-6 following inoculation, while chorioallantois and endometrium upregulated IL-1β and IL-8 expression. IL-1β was upregulated in the maternal spleen following inoculation. Fetal spleens were upregulated in expression of IL-1β, GRO, and IL-6, while IL-6 was higher in fetal liver after inoculation than in controls. CONCLUSION The maternal response to placentitis is primarily pro-inflammatory while the fetus appears to play a regulatory role in this inflammation. Additionally, amniotic fluid sampling may be more diagnostic of ascending placentitis than circulating cytokines.
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Affiliation(s)
- Carleigh E Fedorka
- Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Barry A Ball
- Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Kirsten E Scoggin
- Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Shavahn C Loux
- Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Mats H T Troedsson
- Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Amanda A Adams
- Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
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Ludwig KD, Fain SB, Nguyen SM, Golos TG, Reeder SB, Bird IM, Shah DM, Wieben OE, Johnson KM. Perfusion of the placenta assessed using arterial spin labeling and ferumoxytol dynamic contrast enhanced magnetic resonance imaging in the rhesus macaque. Magn Reson Med 2019; 81:1964-1978. [PMID: 30357902 PMCID: PMC6715150 DOI: 10.1002/mrm.27548] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 03/25/2018] [Revised: 08/29/2018] [Accepted: 09/03/2018] [Indexed: 01/01/2023]
Abstract
PURPOSE To investigate the correspondence between arterial spin labeling (ASL) flow-sensitive alternating inversion recovery (FAIR) and ferumoxytol DCE MRI for the assessment of placental intervillous perfusion. METHODS Ten pregnant macaques in late second trimester were imaged at 3 T using a 2D ASL FAIR, with and without outer-volume saturation pulses used to control the bolus width, and a 3D ferumoxytol DCE-MRI acquisition. The ASL tagged/control pairs were averaged, subtracted, and normalized to create perfusion ratio maps. Contrast arrival time and uptake slope were estimated by fitting the DCE data to a sigmoid function. Macaques (N = 4) received interleukin-1β to induce inflammation and disrupt perfusion. RESULTS The FAIR tag modification with outer-volume saturation reduced the median ASL ratio percentage compared with conventional FAIR (0.64% ± 1.42% versus 0.71% ± 2.00%; P < .05). Extended ferumoxytol arrival times (34 ± 25 seconds) were observed across the placenta. No significant DCE signal change was measured in fetal tissue ( - 0.6% ± 3.0%; P = .52) or amniotic fluid (1.9% ± 8.8%; P = .59). High ASL ratio was significantly correlated with early arrival time and high uptake slope (P < .05), but ASL signal was not above noise in late-DCE-enhancing regions. No significant differences were observed in perfusion measurements between the interleukin-1β and controls (P > .05). CONCLUSION The ASL-FAIR and ferumoxytol DCE-MRI methods are feasible to detect early blood delivery to the macaque placenta. Outer volume saturation reduced the high macrovascular ASL signal. Interleukin-1β exposure did not alter placental intervillous perfusion. An endogenous-labeling perfusion technique is limited due to extended transit times for flow within the placenta beyond the immediate vicinity of the maternal spiral arteries.
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Affiliation(s)
- Kai D. Ludwig
- Medical Physics, University of Wisconsin, 1111 Highland Ave, Madison, Madison, WI, USA 53705
| | - Sean B. Fain
- Medical Physics, University of Wisconsin, 1111 Highland Ave, Madison, Madison, WI, USA 53705
- Radiology, University of Wisconsin, 600 Highland Ave, Madison, Madison, WI, USA 53792
- Biomedical Engineering, University of Wisconsin, 1415 Engineering Dr, Madison, Madison, WI, USA 53706
| | - Sydney M. Nguyen
- Wisconsin National Primate Research Center, 1220 Capitol Court, Madison, WI, USA 53715
- Obstetrics and Gynecology, University of Wisconsin, 600 Highland Ave, Madison, WI, USA 53792
| | - Thaddeus G. Golos
- Wisconsin National Primate Research Center, 1220 Capitol Court, Madison, WI, USA 53715
- Obstetrics and Gynecology, University of Wisconsin, 600 Highland Ave, Madison, WI, USA 53792
- Comparative Biosciences, University of Wisconsin, 2015 Linden Dr, Madison, Madison, WI, USA 53706
| | - Scott B. Reeder
- Medical Physics, University of Wisconsin, 1111 Highland Ave, Madison, Madison, WI, USA 53705
- Radiology, University of Wisconsin, 600 Highland Ave, Madison, Madison, WI, USA 53792
- Biomedical Engineering, University of Wisconsin, 1415 Engineering Dr, Madison, Madison, WI, USA 53706
- Medicine, University of Wisconsin, 600 Highland Ave, Madison, Madison, WI, USA 53792
- Emergency Medicine, University of Wisconsin, 600 Highland Ave, Madison, Madison, WI, USA 53792
| | - Ian M. Bird
- Obstetrics and Gynecology, University of Wisconsin, 600 Highland Ave, Madison, WI, USA 53792
| | - Dinesh M. Shah
- Obstetrics and Gynecology, University of Wisconsin, 600 Highland Ave, Madison, WI, USA 53792
| | - Oliver E. Wieben
- Medical Physics, University of Wisconsin, 1111 Highland Ave, Madison, Madison, WI, USA 53705
- Radiology, University of Wisconsin, 600 Highland Ave, Madison, Madison, WI, USA 53792
| | - Kevin M. Johnson
- Medical Physics, University of Wisconsin, 1111 Highland Ave, Madison, Madison, WI, USA 53705
- Radiology, University of Wisconsin, 600 Highland Ave, Madison, Madison, WI, USA 53792
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Coffey LL, Keesler RI, Pesavento PA, Woolard K, Singapuri A, Watanabe J, Cruzen C, Christe KL, Usachenko J, Yee J, Heng VA, Bliss-Moreau E, Reader JR, von Morgenland W, Gibbons AM, Jackson K, Ardeshir A, Heimsath H, Permar S, Senthamaraikannan P, Presicce P, Kallapur SG, Linnen JM, Gao K, Orr R, MacGill T, McClure M, McFarland R, Morrison JH, Van Rompay KKA. Intraamniotic Zika virus inoculation of pregnant rhesus macaques produces fetal neurologic disease. Nat Commun 2018; 9:2414. [PMID: 29925843 PMCID: PMC6010452 DOI: 10.1038/s41467-018-04777-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [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: 11/27/2017] [Accepted: 04/10/2018] [Indexed: 01/05/2023] Open
Abstract
Zika virus (ZIKV) infection of pregnant women can cause fetal microcephaly and other neurologic defects. We describe the development of a non-human primate model to better understand fetal pathogenesis. To reliably induce fetal infection at defined times, four pregnant rhesus macaques are inoculated intravenously and intraamniotically with ZIKV at gestational day (GD) 41, 50, 64, or 90, corresponding to first and second trimester of gestation. The GD41-inoculated animal, experiencing fetal death 7 days later, has high virus levels in fetal and placental tissues, implicating ZIKV as cause of death. The other three fetuses are carried to near term and euthanized; while none display gross microcephaly, all show ZIKV RNA in many tissues, especially in the brain, which exhibits calcifications and reduced neural precursor cells. Given that this model consistently recapitulates neurologic defects of human congenital Zika syndrome, it is highly relevant to unravel determinants of fetal neuropathogenesis and to explore interventions.
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Affiliation(s)
- Lark L Coffey
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.
| | - Rebekah I Keesler
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Patricia A Pesavento
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Kevin Woolard
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Anil Singapuri
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Jennifer Watanabe
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Christina Cruzen
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Kari L Christe
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Jodie Usachenko
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - JoAnn Yee
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Victoria A Heng
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.,Donders Institute, Radboud University, Montessorilaan 3, 6525 HR, Nijmegen, The Netherlands
| | - Eliza Bliss-Moreau
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.,Department of Psychology, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - J Rachel Reader
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Wilhelm von Morgenland
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Anne M Gibbons
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Kenneth Jackson
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Amir Ardeshir
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Holly Heimsath
- Duke Human Vaccine Institute, Duke University Medical Center, 103020, 2 Genome Court MSRBII, Durham, NC, 27710, USA
| | - Sallie Permar
- Duke Human Vaccine Institute, Duke University Medical Center, 103020, 2 Genome Court MSRBII, Durham, NC, 27710, USA
| | - Paranthaman Senthamaraikannan
- Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, 10833 Le Conte Avenue, Los Angeles, CA, 90095, USA
| | - Suhas G Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, 10833 Le Conte Avenue, Los Angeles, CA, 90095, USA
| | - Jeffrey M Linnen
- Grifols Diagnostic Solutions, Inc., 10808 Willow Court, San Diego, CA, 92127, USA
| | - Kui Gao
- Grifols Diagnostic Solutions, Inc., 10808 Willow Court, San Diego, CA, 92127, USA
| | - Robert Orr
- Office of Counterterrorism and Emerging Threats, Office of the Chief Scientist, Food and Drug Administration, 25 New Hampshire Avenue, Silver Spring, MD, 20903, USA
| | - Tracy MacGill
- Office of Counterterrorism and Emerging Threats, Office of the Chief Scientist, Food and Drug Administration, 25 New Hampshire Avenue, Silver Spring, MD, 20903, USA
| | - Michelle McClure
- Office of Tissues and Advanced Therapies, Center for Biologics Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20903, USA
| | - Richard McFarland
- The Advanced Regenerative Manufacturing Institute, 400 Commercial Street, Manchester, NH, 03101, USA
| | - John H Morrison
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Koen K A Van Rompay
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.
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Presicce P, Park CW, Senthamaraikannan P, Bhattacharyya S, Jackson C, Kong F, Rueda CM, DeFranco E, Miller LA, Hildeman DA, Salomonis N, Chougnet CA, Jobe AH, Kallapur SG. IL-1 signaling mediates intrauterine inflammation and chorio-decidua neutrophil recruitment and activation. JCI Insight 2018; 3:98306. [PMID: 29563340 DOI: 10.1172/jci.insight.98306] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [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: 10/25/2017] [Accepted: 02/13/2018] [Indexed: 12/31/2022] Open
Abstract
Neutrophil infiltration of the chorioamnion-decidua tissue at the maternal-fetal interface (chorioamnionitis) is a leading cause of prematurity, fetal inflammation, and perinatal mortality. We induced chorioamnionitis in preterm rhesus macaques by intraamniotic injection of LPS. Here, we show that, during chorioamnionitis, the amnion upregulated phospho-IRAK1-expressed neutrophil chemoattractants CXCL8 and CSF3 in an IL-1-dependent manner. IL-1R blockade decreased chorio-decidua neutrophil accumulation, neutrophil activation, and IL-6 and prostaglandin E2 concentrations in the amniotic fluid. Neutrophils accumulating in the chorio-decidua had increased survival mediated by BCL2A1, and IL-1R blockade also decreased BCL2A1+ chorio-decidua neutrophils. Readouts for inflammation in a cohort of women with preterm delivery and chorioamnionitis were similar to findings in the rhesus macaques. IL-1 is a potential therapeutic target for chorioamnionitis and associated morbidities.
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Affiliation(s)
| | | | | | | | - Courtney Jackson
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | - Cesar M Rueda
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Emily DeFranco
- Department of Obstetrics/Gynecology, Maternal-Fetal Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Lisa A Miller
- California National Primate Research Center, Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, UCD, Davis, California, USA
| | - David A Hildeman
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Nathan Salomonis
- Division of Biomedical informatics, Cincinnati Children's Hospital Research Foundation, Cincinnati, Ohio, USA
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Strauss JF, Romero R, Gomez-Lopez N, Haymond-Thornburg H, Modi BP, Teves ME, Pearson LN, York TP, Schenkein HA. Spontaneous preterm birth: advances toward the discovery of genetic predisposition. Am J Obstet Gynecol 2018; 218:294-314.e2. [PMID: 29248470 PMCID: PMC5834399 DOI: 10.1016/j.ajog.2017.12.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [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: 09/14/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 02/08/2023]
Abstract
Evidence from family and twin-based studies provide strong support for a significant contribution of maternal and fetal genetics to the timing of parturition and spontaneous preterm birth. However, there has been only modest success in the discovery of genes predisposing to preterm birth, despite increasing sophistication of genetic and genomic technology. In contrast, DNA variants associated with other traits/diseases have been identified. For example, there is overwhelming evidence that suggests that the nature and intensity of an inflammatory response in adults and children are under genetic control. Because inflammation is often invoked as an etiologic factor in spontaneous preterm birth, the question of whether spontaneous preterm birth has a genetic predisposition in the case of pathologic inflammation has been of long-standing interest to investigators. Here, we review various genetic approaches used for the discovery of preterm birth genetic variants in the context of inflammation-associated spontaneous preterm birth. Candidate gene studies have sought genetic variants that regulate inflammation in the mother and fetus; however, the promising findings have often not been replicated. Genome-wide association studies, an approach to the identification of chromosomal loci responsible for complex traits, have also not yielded compelling evidence for DNA variants predisposing to preterm birth. A recent genome-wide association study that included a large number of White women (>40,000) revealed that maternal loci contribute to preterm birth. Although none of these loci harbored genes directly related to innate immunity, the results were replicated. Another approach to identify DNA variants predisposing to preterm birth is whole exome sequencing, which examines the DNA sequence of protein-coding regions of the genome. A recent whole exome sequencing study identified rare mutations in genes encoding for proteins involved in the negative regulation (dampening) of the innate immune response (eg, CARD6, CARD8, NLRP10, NLRP12, NOD2, TLR10) and antimicrobial peptide/proteins (eg, DEFB1, MBL2). These findings support the concept that preterm labor, at least in part, has an inflammatory etiology, which can be induced by pathogens (ie, intraamniotic infection) or "danger signals" (alarmins) released during cellular stress or necrosis (ie, sterile intraamniotic inflammation). These findings support the notion that preterm birth has a polygenic basis that involves rare mutations or damaging variants in multiple genes involved in innate immunity and host defense mechanisms against microbes and their noxious products. An overlap among the whole exome sequencing-identified genes and other inflammatory conditions associated with preterm birth, such as periodontal disease and inflammatory bowel disease, was observed, which suggests a shared genetic substrate for these conditions. We propose that whole exome sequencing, as well as whole genome sequencing, is the most promising approach for the identification of functionally significant genetic variants responsible for spontaneous preterm birth, at least in the context of pathologic inflammation. The identification of genes that contribute to preterm birth by whole exome sequencing, or whole genome sequencing, promises to yield valuable population-specific biomarkers to identify the risk for spontaneous preterm birth and potential strategies to mitigate such a risk.
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Affiliation(s)
- Jerome F Strauss
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA; Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA.
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute for Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI; Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI.
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute for Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI; Department of Obstetrics and Gynecology and the Department of Immunology, Microbiology and Biochemistry, Wayne State University School of Medicine, Detroit, MI
| | - Hannah Haymond-Thornburg
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA
| | - Bhavi P Modi
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada
| | - Maria E Teves
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA
| | - Laurel N Pearson
- Department of Anthropology, Pennsylvania State University, University Park, PA
| | - Timothy P York
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA; Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA
| | - Harvey A Schenkein
- Department of Periodontics, Virginia Commonwealth University School of Dentistry, Richmond, VA
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37
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Panaitescu B, Romero R, Gomez-Lopez N, Xu Y, Leng Y, Maymon E, Pacora P, Erez O, Yeo L, Hassan SS, Hsu CD. In vivo evidence of inflammasome activation during spontaneous labor at term. J Matern Fetal Neonatal Med 2018; 32:1978-1991. [PMID: 29295667 DOI: 10.1080/14767058.2017.1422714] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Upon inflammasome activation, the adaptor protein of the inflammasome ASC (apoptosis-associated speck-like protein containing a CARD) forms intracellular specks, which can be released into the extracellular space. The objectives of this study were to investigate whether (1) extracellular ASC is present in the amniotic fluid of women who delivered at term; (2) amniotic fluid ASC concentrations are greater in women who underwent spontaneous labor at term than in those who delivered at term in the absence of labor; and (3) amniotic epithelial and mesenchymal cells can form intracellular ASC specks in vitro. METHODS This retrospective cross-sectional study included amniotic fluid samples from 41 women who delivered at term in the absence of labor (n = 24) or underwent spontaneous labor at term (n = 17). Amniotic epithelial and mesenchymal cells were also isolated from the chorioamniotic membranes obtained from a separate group of women who delivered at term (n = 3), in which ASC speck formation was assessed by confocal microscopy. Monocytes from healthy individuals were used as positive controls for ASC speck formation (n = 3). RESULTS (1) The adaptor protein of the inflammasome ASC is detectable in the amniotic fluid of women who delivered at term; (2) amniotic fluid ASC concentration was higher in women who underwent spontaneous labor at term than in those who delivered at term without labor; and (3) amniotic epithelial and mesenchymal cells are capable of forming ASC specks and/or filaments in vitro. CONCLUSION Amniotic fluid ASC concentrations are increased in women who undergo spontaneous labor at term. Amniotic epithelial and mesenchymal cells are capable of forming ASC specks, suggesting that these cells are a source of extracellular ASC in the amniotic fluid. These findings provide in vivo evidence that there is inflammasome activation in the amniotic cavity during the physiological process of labor at term.
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Affiliation(s)
- Bogdan Panaitescu
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Roberto Romero
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,c Department of Obstetrics & Gynecology , University of Michigan , Ann Arbor , MI , USA.,d Department of Epidemiology & Biostatistics , Michigan State University , East Lansing , MI , USA.,e Center for Molecular Medicine & Genetics , Wayne State University , Detroit , MI , USA
| | - Nardhy Gomez-Lopez
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA.,f Department of Immunology, Microbiology & Biochemistry , Wayne State University School of Medicine , Detroit , MI , USA
| | - Yi Xu
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Yaozhu Leng
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Eli Maymon
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA.,g Department of Obstetrics and Gynecology , Soroka University Medical Center, School of Medicine, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beersheba , Israel
| | - Percy Pacora
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Offer Erez
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA.,g Department of Obstetrics and Gynecology , Soroka University Medical Center, School of Medicine, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beersheba , Israel
| | - Lami Yeo
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Sonia S Hassan
- a Perinatology Research Branch, NICHD/NIH/DHHS , Detroit , MI , USA.,b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA.,h Department of Physiology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Chaur-Dong Hsu
- b Department of Obstetrics & Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
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Chang RQ, Li DJ, Li MQ. The role of indoleamine-2,3-dioxygenase in normal and pathological pregnancies. Am J Reprod Immunol 2017; 79:e12786. [PMID: 29154462 DOI: 10.1111/aji.12786] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [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: 09/20/2017] [Accepted: 10/30/2017] [Indexed: 12/30/2022] Open
Abstract
The survival of allogeneic fetus during pregnancy contradicts the laws of immune responses. Behind this paradoxical phenomenon, the mechanism is quite complex. Indoleamine-2,3-dioxygenase (IDO) is the first and rate-limiting enzyme of tryptophan catabolism. Emerging evidence shows that IDO is expressed at the maternal-fetal interface, including trophoblast cells, decidual stroma cells, decidual immune cells (eg, natural killer cells, T cells, and macrophages), and vascular endothelial cells of decidua and chorion. Moreover, the expression and activity of IDO are different among non-pregnant, normal pregnant, and pathological pregnant conditions. IDO plays important roles in normal pregnancy through immune suppression and regulation of fetal invasion and circulation. However, the abnormal expression and dysfunction of IDO are associated with some pathological pregnancies (including recurrent spontaneous abortion, preeclampsia, preterm labor, and fetal growth restriction).
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Affiliation(s)
- Rui-Qi Chang
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
| | - Da-Jin Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
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Gomez-Lopez N, Romero R, Xu Y, Plazyo O, Unkel R, Leng Y, Than NG, Chaiworapongsa T, Panaitescu B, Dong Z, Tarca AL, Abrahams VM, Yeo L, Hassan SS. A Role for the Inflammasome in Spontaneous Preterm Labor With Acute Histologic Chorioamnionitis. Reprod Sci 2017; 24:1382-1401. [PMID: 28122480 PMCID: PMC5933090 DOI: 10.1177/1933719116687656] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [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] [Indexed: 12/22/2022]
Abstract
Inflammasomes are cytosolic multiprotein complexes that orchestrate inflammation in response to pathogens and endogenous danger signals. Herein, we determined whether the chorioamniotic membranes from women in spontaneous preterm labor with acute histologic chorioamnionitis (1) express major inflammasome components; (2) express caspase (CASP)-1 and CASP-4 as well as their active forms; (3) exhibit apoptosis-associated speck-like protein containing a CARD (ASC)/CASP-1 complex formation; and (4) release the mature forms of interleukin (IL)-1β and IL-18. We utilized quantitative reverse transcription polymerase chain reaction, enzyme-linked immunosorbent assay, immunoblotting, and immunohistochemistry to determine the messenger RNA (mRNA) and protein expression of major inflammasome components, nucleotide-binding oligomerization domain (NOD) proteins, and the pro- and mature/active forms of CASP-1, CASP-4, IL-1β, and IL-18. The ASC/CASP-1 complex formation was determined using an in situ proximity ligation assay. When comparing the chorioamniotic membranes from women in spontaneous preterm labor with acute histologic chorioamnionitis to those without this placental lesion, we found that (1) the mRNA of NLR family pyrin domain-containing protein ( NLRP) 1, NLRP3, NLR family CARD domain-containing protein 4 ( NLRC4), and NOD2 were higher; (2) the NLRP3 protein was increased; (3) the mRNA and active form (p10) of CASP-1 were greater; (4) the mRNA and active form of CASP-4 were increased; (5) the mRNA and mature form of IL-1β were higher; (6) the mature form of IL-18 was elevated; and (7) ASC/CASP-1 complex formation was increased. In conclusion, spontaneous preterm labor with acute histologic chorioamnionitis is characterized by an upregulation of NLRP3 and the active form of CASP-4, as well as increased ASC/CASP-1 complex formation, which may participate in the activation of CASP-1 and the maturation of IL-1β and IL-18 in the chorioamniotic membranes. These findings provide the first evidence that supports a role for the inflammasome in the pathological inflammation implicated in spontaneous preterm labor with acute histologic chorioamnionitis.
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Affiliation(s)
- Nardhy Gomez-Lopez
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Yi Xu
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Olesya Plazyo
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ronald Unkel
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Yaozhu Leng
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Nandor Gabor Than
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
- Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hungary
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Bogdan Panaitescu
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Zhong Dong
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Adi L. Tarca
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Vikki M. Abrahams
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Lami Yeo
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sonia S. Hassan
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
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40
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Reyes L, Phillips P, Wolfe B, Golos TG, Walkenhorst M, Progulske-Fox A, Brown M. Porphyromonas gingivalis and adverse pregnancy outcome. J Oral Microbiol 2017; 10:1374153. [PMID: 29291034 PMCID: PMC5646603 DOI: 10.1080/20002297.2017.1374153] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 06/16/2017] [Accepted: 08/23/2017] [Indexed: 01/12/2023] Open
Abstract
Porphyromonas gingivalis is a Gram-negative, anaerobic bacterium considered to be an important pathogen of periodontal disease that is also implicated in adverse pregnancy outcome (APO). Until recently, our understanding of the role of P. gingivalis in APO has been limited and sometimes contradictory. The purpose of this review is to provide an overview of past and current research on P. gingivalis that addresses some of the controversies concerning the role of this organism in the pathogenesis of APO.
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Affiliation(s)
- Leticia Reyes
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin - Madison, Madison, WI, USA
| | - Priscilla Phillips
- Microbiology & Immunology, A.T. Still University of Health Sciences, Kirksville College of Osteopathic Medicine, Kirksville, MO, USA
| | - Bryce Wolfe
- Wisconsin National Primate Research Center, University of Wisconsin - Madison, Madison, WI, USA.,Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin - Madison, Madison, WI, USA
| | - Thaddeus G Golos
- Wisconsin National Primate Research Center, University of Wisconsin - Madison, Madison, WI, USA.,Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin - Madison, Madison, WI, USA
| | - Molly Walkenhorst
- Microbiology & Immunology, A.T. Still University of Health Sciences, Kirksville College of Osteopathic Medicine, Kirksville, MO, USA
| | - Ann Progulske-Fox
- Department of Oral Microbiology, Center for Molecular Microbiology, University of Florida, Gainesville, FL, USA
| | - Mary Brown
- Infectious Disease and Immunology, College of Veterinary Medicine and D. H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, FL, USA
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41
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Cappelletti M, Presicce P, Lawson MJ, Chaturvedi V, Stankiewicz TE, Vanoni S, Harley IT, McAlees JW, Giles DA, Moreno-Fernandez ME, Rueda CM, Senthamaraikannan P, Sun X, Karns R, Hoebe K, Janssen EM, Karp CL, Hildeman DA, Hogan SP, Kallapur SG, Chougnet CA, Way SS, Divanovic S. Type I interferons regulate susceptibility to inflammation-induced preterm birth. JCI Insight 2017; 2:e91288. [PMID: 28289719 DOI: 10.1172/jci.insight.91288] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Preterm birth (PTB) is a leading worldwide cause of morbidity and mortality in infants. Maternal inflammation induced by microbial infection is a critical predisposing factor for PTB. However, biological processes associated with competency of pathogens, including viruses, to induce PTB or sensitize for secondary bacterial infection-driven PTB are unknown. We show that pathogen/pathogen-associated molecular pattern-driven activation of type I IFN/IFN receptor (IFNAR) was sufficient to prime for systemic and uterine proinflammatory chemokine and cytokine production and induction of PTB. Similarly, treatment with recombinant type I IFNs recapitulated such effects by exacerbating proinflammatory cytokine production and reducing the dose of secondary inflammatory challenge required for induction of PTB. Inflammatory challenge-driven induction of PTB was eliminated by defects in type I IFN, TLR, or IL-6 responsiveness, whereas the sequence of type I IFN sensing by IFNAR on hematopoietic cells was essential for regulation of proinflammatory cytokine production. Importantly, we also show that type I IFN priming effects are conserved from mice to nonhuman primates and humans, and expression of both type I IFNs and proinflammatory cytokines is upregulated in human PTB. Thus, activation of the type I IFN/IFNAR axis in pregnancy primes for inflammation-driven PTB and provides an actionable biomarker and therapeutic target for mitigating PTB risk.
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Affiliation(s)
| | - Pietro Presicce
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation
| | - Matthew J Lawson
- Division of Immunobiology.,Molecular, Cellular and Biochemical Pharmacology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | - Simone Vanoni
- Division of Allergy and Immunology, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | - Daniel A Giles
- Division of Immunobiology.,Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | | | | | - Rebekah Karns
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | | | | | - Simon P Hogan
- Division of Allergy and Immunology, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Suhas G Kallapur
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation
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42
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Plazyo O, Romero R, Unkel R, Balancio A, Mial TN, Xu Y, Dong Z, Hassan SS, Gomez-Lopez N. HMGB1 Induces an Inflammatory Response in the Chorioamniotic Membranes That Is Partially Mediated by the Inflammasome. Biol Reprod 2016; 95:130. [PMID: 27806943 PMCID: PMC5315428 DOI: 10.1095/biolreprod.116.144139] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [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] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 09/05/2016] [Accepted: 10/27/2016] [Indexed: 01/12/2023] Open
Abstract
Spontaneous preterm labor occurs in two subsets of patients with sterile intra-amniotic inflammation, a process induced by alarmins such as high-mobility group box-1 (HMGB1). Inflammasomes are implicated in the process of spontaneous preterm labor. Therefore, we investigated whether HMGB1 initiates an inflammasome-associated inflammatory response in the chorioamniotic membranes. Incubation of the chorioamniotic membranes with HMGB1 1) induced the release of mature IL-1beta and IL-6; 2) upregulated the mRNA expression of the pro-inflammatory mediators NFKB1, IL6, TNF, IL1A, IFNG, and HMGB1 receptors RAGE and TLR2; 3) upregulated the mRNA expression of the inflammasome components NLRP3 and AIM2 as well as NOD proteins (NOD1 and NOD2); 4) increased the protein concentrations of NLRP3 and NOD2; 5) increased the concentration of caspase-1 and the quantity of its active form (p20); and 6) upregulated the mRNA expression and active form of MMP-9. In addition, HMGB1 concentrations in chorioamniotic membrane extracts from women who underwent spontaneous preterm labor were greater than in those from women who had undergone spontaneous labor at term. Collectively, these results show that HMGB1 can induce an inflammatory response in the chorioamniotic membranes, which is partially mediated by the inflammasome. These results provide insight into the mechanisms whereby HMGB1 induces preterm labor and birth in mice and explain why the concentration of this alarmin is increased in women who undergo spontaneous preterm labor.
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Affiliation(s)
- Olesya Plazyo
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Roberto Romero
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan
| | - Ronald Unkel
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Amapola Balancio
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Tara N Mial
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Yi Xu
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Zhong Dong
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Sonia S Hassan
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, Michigan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
- Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, Michigan
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Gomez-Lopez N, Romero R, Xu Y, Plazyo O, Unkel R, Than NG, Chaemsaithong P, Chaiworapongsa T, Dong Z, Tarca AL, Abrahams VM, Yeo L, Hassan SS. A Role for the Inflammasome in Spontaneous Labor at Term with Acute Histologic Chorioamnionitis. Reprod Sci 2016; 24:934-953. [PMID: 27852921 DOI: 10.1177/1933719116675058] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Inflammasomes are cytosolic signaling platforms that regulate the activation of caspase (CASP)-1, which induces the maturation of interleukin (IL)-1β and IL-18. Herein, we determined whether the chorioamniotic membranes from women in spontaneous labor at term with acute histologic chorioamnionitis express major inflammasome components and whether these changes are associated with the activation of CASP-1 and CASP-4 and the release of mature IL-1β and IL-18. When comparing the chorioamniotic membranes from women in spontaneous labor at term with acute histologic chorioamnionitis to those without this placental lesion, we found that (1) the messenger RNA (mRNA) abundance of NLR family pyrin domain containing 3 ( NLRP3), NLR family CARD domain containing 4 ( NLRC4), absent in melanoma 2 ( AIM2), and nucleotide binding oligomerization domain 2 ( NOD2) was higher; (2) the NLRP3 and NLRC4 protein quantities were increased; (3) the mRNA and protein expressions of CASP-1 and its active forms were greater; (4) CASP-4 was increased at the mRNA level only; (5) the mRNA and protein expressions of IL-1β and its mature form were higher; and (6) a modest increase in the total protein concentration and abundance of the mature form of IL-18 was observed. In vitro incubation of the chorioamniotic membranes with the CASP-1 inhibitor, VX765, decreased the release of endotoxin-induced IL-1β and IL-18 (2-fold) but not IL-6 or tumor necrosis factor α. In conclusion, spontaneous labor at term with acute histologic chorioamnionitis is characterized by an upregulation of inflammasome components which, in turn, may participate in the activation of CASP-1 and lead to the release of mature IL-1β by the chorioamniotic membranes. These results support a role for the inflammasome in the mechanisms responsible for spontaneous labor at term with acute histologic chorioamnionitis.
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Affiliation(s)
- Nardhy Gomez-Lopez
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,3 Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,4 Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,5 Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,6 Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Yi Xu
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Olesya Plazyo
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ronald Unkel
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Nandor Gabor Than
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,7 Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary.,8 Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hungary.,9 First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Piya Chaemsaithong
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Tinnakorn Chaiworapongsa
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Zhong Dong
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Adi L Tarca
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Vikki M Abrahams
- 10 Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Lami Yeo
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sonia S Hassan
- 1 Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,2 Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
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44
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Senthamaraikannan P, Presicce P, Rueda CM, Maneenil G, Schmidt AF, Miller LA, Waites KB, Jobe AH, Kallapur SG, Chougnet CA. Intra-amniotic Ureaplasma parvum-Induced Maternal and Fetal Inflammation and Immune Responses in Rhesus Macaques. J Infect Dis 2016; 214:1597-1604. [PMID: 27601620 DOI: 10.1093/infdis/jiw408] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [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: 07/01/2016] [Accepted: 08/22/2016] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Although Ureaplasma species are the most common organisms associated with prematurity, their effects on the maternal and fetal immune system remain poorly characterized. METHODS Rhesus macaque dams at approximately 80% gestation were injected intra-amniotically with 107 colony-forming units of Ureaplasma parvum or saline (control). Fetuses were delivered surgically 3 or 7 days later. We performed comprehensive assessments of inflammation and immune effects in multiple fetal and maternal tissues. RESULTS Although U. parvum grew well in amniotic fluid, there was minimal chorioamnionitis. U. parvum colonized the fetal lung, but fetal systemic microbial invasion was limited. Fetal lung inflammation was mild, with elevations in CXCL8, tumor necrosis factor (TNF) α, and CCL2 levels in alveolar washes at day 7. Inflammation was not detected in the fetal brain. Significantly, U. parvum decreased regulatory T cells (Tregs) and activated interferon γ production in these Tregs in the fetus. It was detected in uterine tissue by day 7 and induced mild inflammation and increased expression of connexin 43, a gap junction protein involved with labor. CONCLUSIONS U. parvum colonized the amniotic fluid and caused uterine inflammation, but without overt chorioamnionitis. It caused mild fetal lung inflammation but had a more profound effect on the fetal immune system, decreasing Tregs and polarizing them toward a T-helper 1 phenotype.
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Affiliation(s)
| | | | - Cesar M Rueda
- Perinatal Institute.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Ohio
| | - Gunlawadee Maneenil
- Perinatal Institute.,Division of Neonatology, Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | | | - Lisa A Miller
- California National Primate Research Center.,Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis
| | - Ken B Waites
- Department of Pathology, University of Alabama at Birmingham
| | | | | | - Claire A Chougnet
- Perinatal Institute.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Ohio
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45
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Rueda CM, Presicce P, Jackson CM, Miller LA, Kallapur SG, Jobe AH, Chougnet CA. Lipopolysaccharide-Induced Chorioamnionitis Promotes IL-1-Dependent Inflammatory FOXP3+ CD4+ T Cells in the Fetal Rhesus Macaque. J Immunol 2016; 196:3706-15. [PMID: 27036917 DOI: 10.4049/jimmunol.1502613] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 03/03/2016] [Indexed: 12/19/2022]
Abstract
Chorioamnionitis is associated with preterm labor and fetal inflammatory response syndrome (FIRS), causing fetal organ injury and morbidity, particularly in extremely premature infants. However, the effects of inflammation on the fetal immune system remain poorly understood, due to the difficulty of studying immune development in infants. Therefore, we used the model of intra-amniotic LPS administered at ∼80% gestation in rhesus monkeys to cause chorioamnionitis and FIRS that is similar in human pathology. Importantly, the frequency of IL-17(+) and IL-22(+) CD4(+) T cells increased in the spleen of LPS-exposed fetuses, whereas regulatory T cell (Treg) frequency decreased. These changes persisted for at least 48 h. Notably, Th17 cytokines were predominantly expressed by FOXP3(+)CD4(+) T cells and not by their FOXP3(-) counterparts. Bifunctional IL-17(+)FOXP3(+) exhibited a phenotype of inflammatory Tregs (RORc(High/+), Helios(Low/-), IL-2(+), IFN-γ(+), and IL-8(+)) compared with typical FOXP3(+) cells. Diminished splenic Treg frequency in LPS-exposed fetuses was associated with inadequate Treg generation in the thymus. Mechanistically, the emergence of inflammatory Tregs was largely dependent on IL-1 signaling. However, blockage of IL-1R signaling did not abolish the deleterious effects of LPS on Treg frequency in the thymus or spleen. Collectively, we demonstrate that a prenatal inflammatory environment leads to inadequate Treg generation in the thymus with a switch of splenic Tregs toward an inflammatory phenotype. Both processes likely contribute to the pathogenesis of chorioamnionitis. Approaches to manipulate Treg numbers and function could thus be useful therapeutically to alleviate FIRS in preterm infants.
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Affiliation(s)
- Cesar M Rueda
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Cincinnati, OH 45229; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229
| | - Pietro Presicce
- Division of Neonatology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, OH 45229
| | - Courtney M Jackson
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Cincinnati, OH 45229; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229
| | - Lisa A Miller
- California National Primate Research Center, University of California Davis, Davis, CA 95616; Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616; and
| | - Suhas G Kallapur
- Division of Neonatology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, OH 45229
| | - Alan H Jobe
- Division of Perinatal Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, OH 45229
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Cincinnati, OH 45229; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229;
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Romero R, Xu Y, Plazyo O, Chaemsaithong P, Chaiworapongsa T, Unkel R, Than NG, Chiang PJ, Dong Z, Xu Z, Tarca AL, Abrahams VM, Hassan SS, Yeo L, Gomez-Lopez N. A Role for the Inflammasome in Spontaneous Labor at Term. Am J Reprod Immunol 2016; 79:e12440. [PMID: 26952361 DOI: 10.1111/aji.12440] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [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: 09/02/2015] [Accepted: 09/28/2015] [Indexed: 12/15/2022] Open
Abstract
PROBLEM Inflammasomes are signaling platforms that, upon sensing pathogens and sterile stressors, mediate the release of mature forms of interleukin (IL)-1β and IL-18. The aims of this study were to determine (i) the expression of major inflammasome components in the chorioamniotic membranes in spontaneous labor at term, (ii) whether there are changes in the inflammasome components associated with the activation of caspase-1 and caspase-4, and (iii) whether these events are associated with the release of the mature forms of IL-1β and IL-18. METHOD OF STUDY Chorioamniotic membranes were collected from women at term with and without spontaneous labor. mRNA abundance and protein concentrations of inflammasome components, nucleotide-binding oligomerization domain-containing (NOD)1 and NOD2 proteins, caspase-1, caspase-4, IL-1β, and IL-18 were quantified by qRT-PCR (n = 28-29 each), ELISA (n = 10 each) or immunoblotting (n = 8 each), and immunohistochemistry (n = 10 each). Active caspase-1 and caspase-4, as well as mature IL-18, were determined by immunoblotting (n = 4 each), and pro- and mature forms of IL-1β were determined by ELISA (n = 4-7 each). RESULTS Inflammasome components and NOD proteins were expressed in the chorioamniotic membranes obtained from women at term. The chorioamniotic membranes from women who underwent labor had (i) higher concentrations of NLRP3 (NOD-like receptor family, pyrin domain-containing protein 3) and NOD1 protein, (ii) greater immunoreactivity for caspase-1 and caspase-4, (iii) a greater quantity of the active form of caspase-1 (p20), and (iv) higher mRNA abundance and protein concentrations of pro- and mature IL-1β. However, mRNA abundance and protein concentrations of the mature form of IL-18 were not increased in tissues from women who underwent labor at term. CONCLUSIONS Spontaneous labor at term is characterized by the expression of inflammasome components, which may participate in the activation of caspase-1 and lead to the cleavage and release of mature IL-1β by the chorioamniotic membranes. These results support the participation of the inflammasome in the mechanisms responsible for spontaneous parturition at term.
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Affiliation(s)
- Roberto Romero
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Yi Xu
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Olesya Plazyo
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Piya Chaemsaithong
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ronald Unkel
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Nandor Gabor Than
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Institute of Enzymology, Momentum Research Group, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary.,Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hungary.,First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Po Jen Chiang
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA
| | - Zhong Dong
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Zhonghui Xu
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Adi L Tarca
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Vikki M Abrahams
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Sonia S Hassan
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Lami Yeo
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NICHD/NIH/DHHS, Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, MI, USA
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Schatz F, Guzeloglu-Kayisli O, Arlier S, Kayisli UA, Lockwood CJ. The role of decidual cells in uterine hemostasis, menstruation, inflammation, adverse pregnancy outcomes and abnormal uterine bleeding. Hum Reprod Update 2016; 22:497-515. [PMID: 26912000 DOI: 10.1093/humupd/dmw004] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [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: 09/30/2015] [Accepted: 02/01/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Human pregnancy requires robust hemostasis to prevent hemorrhage during extravillous trophoblast (EVT) invasion of the decidualized endometrium, modification of spiral arteries and post-partum processes. However, decidual hemorrhage (abruption) can occur throughout pregnancy from poorly transformed spiral arteries, causing fetal death or spontaneous preterm birth (PTB), or it can promote the aberrant placentation observed in intrauterine growth restriction (IUGR) and pre-eclampsia; all leading causes of perinatal or maternal morbidity and mortality. In non-fertile cycles, the decidua undergoes controlled menstrual bleeding. Abnormal uterine bleeding (AUB) accompanying progestin-only, long-acting, reversible contraception (pLARC) accounts for most discontinuations of these safe and highly effective agents, thereby contributing to unwanted pregnancies and abortion. The aim of this study was to investigate the role of decidual cells in uterine hemostasis, menstruation, inflammation, adverse pregnancy outcomes and abnormal uterine bleeding. METHODS We conducted a critical review of the literature arising from PubMed searches up to December 2015, regarding in situ and in vitro expression and regulation of several specific proteins involved in uterine hemostasis in decidua and cycling endometrium. In addition, we discussed clinical and molecular mechanisms associated with pLARC-induced AUB and pregnancy complications with abruptions, chorioamnionitis or pre-eclampsia. RESULTS Progestin-induced decidualization of estradiol-primed human endometrial stromal cells (HESCs) increases in vivo and in vitro expression of tissue factor (TF) and type-1 plasminogen activator inhibitor (PAI-1) while inhibiting plasminogen activators (PAs), matrix metalloproteinases (MMPs), and the vasoconstrictor, endothelin-1 (ET-1). These changes in decidual cell-derived regulators of hemostasis, fibrinolysis, extracellular matrix (ECM) turnover, and vascular tone prevent hemorrhage during EVT invasion and vascular remodeling. In non-fertile cycles, progesterone withdrawal reduces TF and PAI-1 while increasing PA, MMPs and ET-1, causing menstrual-associated bleeding, fibrinolysis, ECM degradation and ischemia. First trimester decidual hemorrhage elicits later adverse outcomes including pregnancy loss, pre-eclampsia, abruption, IUGR and PTB. Decidual hemorrhage generates excess thrombin that binds to decidual cell-expressed protease-activated receptors (PARs) to induce chemokines promoting shallow placentation; such bleeding later in pregnancy generates thrombin to down-regulate decidual cell progesterone receptors and up-regulate cytokines and MMPs linked to PTB. Endometria of pLARC users display ischemia-induced excess vasculogenesis and progestin inhibition of spiral artery vascular smooth muscle cell proliferation and migration leading to dilated fragile vessels prone to bleeding. Moreover, aberrant TF-derived thrombin signaling also contributes to the pathogenesis of endometriosis via induction of angiogenesis, inflammation and cell survival. CONCLUSION Perivascular decidualized HESCs promote endometrial hemostasis during placentation yet facilitate menstruation through progestational regulation of hemostatic, proteolytic, and vasoactive proteins. Pathological endometrial hemorrhage elicits excess local thrombin generation, which contributes to pLARC associated AUB, endometriosis and adverse pregnancy outcomes through several biochemical mechanisms.
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Affiliation(s)
- Frederick Schatz
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Ozlem Guzeloglu-Kayisli
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Sefa Arlier
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Umit A Kayisli
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Charles J Lockwood
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
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Hermansson AK, Paciello I, Bernardini ML. The Orchestra and Its Maestro: Shigella's Fine-Tuning of the Inflammasome Platforms. Curr Top Microbiol Immunol 2016; 397:91-115. [PMID: 27460806 DOI: 10.1007/978-3-319-41171-2_5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Shigella spp. are the causative agents of bacillary dysentery, leading to extensive mortality and morbidity worldwide. These facultative intracellular bacteria invade the epithelium of the colon and the rectum, inducing a severe inflammatory response from which the symptoms of the disease originate. Shigella are human pathogens able to manipulate and subvert the innate immune system surveillance. Shigella dampens inflammasome activation in epithelial cells. In infected macrophages, inflammasome activation and IL-1β and IL-18 release lead to massive neutrophil recruitment and greatly contribute to inflammation. Here, we describe how Shigella hijacks and finely tunes inflammasome activation in the different cell populations involved in pathogenesis: epithelial cells, macrophages, neutrophils, DCs, and B and T lymphocytes. Shigella emerges as a "sly" pathogen that switches on/off the inflammasome mechanisms in order to optimize the interaction with the host and establish a successful infection.
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Abstract
Abstract
Preterm birth is the leading cause of neonatal morbidity and mortality. Although the underlying causes of pregnancy-associated complication are numerous, it is well established that infection and inflammation represent a highly significant risk factor in preterm birth. However, despite the clinical and public health significance, infectious agents, molecular trigger(s), and immune pathways underlying the pathogenesis of preterm birth remain underdefined and represent a major gap in knowledge. Here, we provide an overview of recent clinical and animal model data focused on the interplay between infection-driven inflammation and induction of preterm birth. Furthermore, here, we highlight the critical gaps in knowledge that warrant future investigations into the interplay between immune responses and induction of preterm birth.
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Affiliation(s)
- Monica Cappelletti
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, and the University of Cincinnati College of Medicine , Cincinnati, Ohio , USA
| | - Silvia Della Bella
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center , Rozzano , Italy
| | - Enrico Ferrazzi
- Department of Woman, Mother and Neonate, Buzzi Childrenˈs Hospital, Biomedical and Clinical Sciences School of Medicine, University of Milan , Italy
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center , Rozzano , Italy
| | - Senad Divanovic
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, and the University of Cincinnati College of Medicine , Cincinnati, Ohio , USA
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Kim CJ, Romero R, Chaemsaithong P, Chaiyasit N, Yoon BH, Kim YM. Acute chorioamnionitis and funisitis: definition, pathologic features, and clinical significance. Am J Obstet Gynecol 2015; 213:S29-52. [PMID: 26428501 DOI: 10.1016/j.ajog.2015.08.040] [Citation(s) in RCA: 561] [Impact Index Per Article: 62.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Revised: 08/12/2015] [Accepted: 08/16/2015] [Indexed: 12/25/2022]
Abstract
Acute inflammatory lesions of the placenta consist of diffuse infiltration of neutrophils at different sites in the organ. These lesions include acute chorioamnionitis, funisitis, and chorionic vasculitis and represent a host response (maternal or fetal) to a chemotactic gradient in the amniotic cavity. While acute chorioamnionitis is evidence of a maternal host response, funisitis and chorionic vasculitis represent fetal inflammatory responses. Intraamniotic infection generally has been considered to be the cause of acute chorioamnionitis and funisitis; however, recent evidence indicates that "sterile" intraamniotic inflammation, which occurs in the absence of demonstrable microorganisms induced by "danger signals," is frequently associated with these lesions. In the context of intraamniotic infection, chemokines (such as interleukin-8 and granulocyte chemotactic protein) establish a gradient that favors the migration of neutrophils from the maternal or fetal circulation into the chorioamniotic membranes or umbilical cord, respectively. Danger signals that are released during the course of cellular stress or cell death can also induce the release of neutrophil chemokines. The prevalence of chorioamnionitis is a function of gestational age at birth, and present in 3-5% of term placentas and in 94% of placentas delivered at 21-24 weeks of gestation. The frequency is higher in patients with spontaneous labor, preterm labor, clinical chorioamnionitis (preterm or term), or ruptured membranes. Funisitis and chorionic vasculitis are the hallmarks of the fetal inflammatory response syndrome, a condition characterized by an elevation in the fetal plasma concentration of interleukin-6, and associated with the impending onset of preterm labor, a higher rate of neonatal morbidity (after adjustment for gestational age), and multiorgan fetal involvement. This syndrome is the counterpart of the systemic inflammatory response syndrome in adults: a risk factor for short- and long-term complications (ie, sterile inflammation in fetuses, neonatal sepsis, bronchopulmonary dysplasia, periventricular leukomalacia, and cerebral palsy). This article reviews the definition, pathogenesis, grading and staging, and clinical significance of the most common lesions in placental disease. Illustrations of the lesions and diagrams of the mechanisms of disease are provided.
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