1
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Batorsky R, Ceasrine AM, Shook LL, Kislal S, Bordt EA, Devlin BA, Perlis RH, Slonim DK, Bilbo SD, Edlow AG. Hofbauer cells and fetal brain microglia share transcriptional profiles and responses to maternal diet-induced obesity. Cell Rep 2024; 43:114326. [PMID: 38848212 DOI: 10.1016/j.celrep.2024.114326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/25/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024] Open
Abstract
Maternal immune activation is associated with adverse offspring neurodevelopmental outcomes, many mediated by in utero microglial programming. As microglia remain inaccessible throughout development, identification of noninvasive biomarkers reflecting fetal brain microglial programming could permit screening and intervention. We used lineage tracing to demonstrate the shared ontogeny between fetal brain macrophages (microglia) and fetal placental macrophages (Hofbauer cells) in a mouse model of maternal diet-induced obesity, and single-cell RNA-seq to demonstrate shared transcriptional programs. Comparison with human datasets demonstrated conservation of placental resident macrophage signatures between mice and humans. Single-cell RNA-seq identified common alterations in fetal microglial and Hofbauer cell gene expression induced by maternal obesity, as well as sex differences in these alterations. We propose that Hofbauer cells, which are easily accessible at birth, provide insights into fetal brain microglial programs and may facilitate the early identification of offspring vulnerable to neurodevelopmental disorders.
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Affiliation(s)
- Rebecca Batorsky
- Data Intensive Studies Center, Tufts University, Medford, MA, USA
| | - Alexis M Ceasrine
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Lydia L Shook
- Division of Maternal-Fetal Medicine, Department of Ob/Gyn, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, Massachusetts General Hospital, Boston, MA, USA
| | - Sezen Kislal
- Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, Massachusetts General Hospital, Boston, MA, USA
| | - Evan A Bordt
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Benjamin A Devlin
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Roy H Perlis
- Department of Psychiatry and Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Donna K Slonim
- Department of Computer Science, Tufts University, Medford, MA, USA
| | - Staci D Bilbo
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA; Department of Neurobiology, Duke University, Durham, NC, USA; Lurie Center for Autism, Massachusetts General Hospital, Boston, MA, USA
| | - Andrea G Edlow
- Division of Maternal-Fetal Medicine, Department of Ob/Gyn, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, Massachusetts General Hospital, Boston, MA, USA.
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2
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Hoo R, Ruiz-Morales ER, Kelava I, Rawat M, Mazzeo CI, Tuck E, Sancho-Serra C, Chelaghma S, Predeus AV, Murray S, Fernandez-Antoran D, Waller RF, Álvarez-Errico D, Lee MCS, Vento-Tormo R. Acute response to pathogens in the early human placenta at single-cell resolution. Cell Syst 2024; 15:425-444.e9. [PMID: 38703772 DOI: 10.1016/j.cels.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 12/01/2023] [Accepted: 04/16/2024] [Indexed: 05/06/2024]
Abstract
The placenta is a selective maternal-fetal barrier that provides nourishment and protection from infections. However, certain pathogens can attach to and even cross the placenta, causing pregnancy complications with potential lifelong impacts on the child's health. Here, we profiled at the single-cell level the placental responses to three pathogens associated with intrauterine complications-Plasmodium falciparum, Listeria monocytogenes, and Toxoplasma gondii. We found that upon exposure to the pathogens, all placental lineages trigger inflammatory responses that may compromise placental function. Additionally, we characterized the responses of fetal macrophages known as Hofbauer cells (HBCs) to each pathogen and propose that they are the probable niche for T. gondii. Finally, we revealed how P. falciparum adapts to the placental microenvironment by modulating protein export into the host erythrocyte and nutrient uptake pathways. Altogether, we have defined the cellular networks and signaling pathways mediating acute placental inflammatory responses that could contribute to pregnancy complications.
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Affiliation(s)
- Regina Hoo
- Wellcome Sanger Institute, Cambridge, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | | | - Iva Kelava
- Wellcome Sanger Institute, Cambridge, UK
| | - Mukul Rawat
- Wellcome Sanger Institute, Cambridge, UK; Wellcome Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, University of Dundee, Dundee, UK
| | | | | | | | - Sara Chelaghma
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | | | | | - David Fernandez-Antoran
- Wellcome/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, UK; Department of Pathology, University of Cambridge, Cambridge, UK
| | - Ross F Waller
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | | | - Marcus C S Lee
- Wellcome Sanger Institute, Cambridge, UK; Wellcome Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, University of Dundee, Dundee, UK.
| | - Roser Vento-Tormo
- Wellcome Sanger Institute, Cambridge, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
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3
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Moriarty KL, Oyenuga RO, Olafuyi O, Schwartz DA. Causes and Effects of COVID-19 Vaccine Hesitancy Among Pregnant Women and its Association with Adverse Maternal, Placental, and Perinatal Outcomes. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2024; 97:73-84. [PMID: 38559465 PMCID: PMC10964823 DOI: 10.59249/lpoq5146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Populations identified to be severely affected by COVID-19, such as pregnant patients, require special consideration in vaccine counseling, access, and provider education. Maternal infection with COVID-19 poses a significant risk to the maternal-fetal dyad with known adverse placenta destruction [1-5]. Despite the widespread access and availability of vaccinations, vaccine hesitancy continues to persist and is highly prevalent in pregnant populations [6-9]. Addressing the multitude of social ecological factors surrounding vaccine hesitancy can aid in providing holistic counseling [10]. However, such factors are foremost shaped by maternal concern over possible fetal effects from vaccination. While changes in policy can help foster vaccine access and acceptance, increasing global provider education and incorporation of motivational interviewing skills are the first steps towards increasing maternal acceptance.
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Affiliation(s)
- Kristen Lee Moriarty
- Department of Obstetrics & Gynecology, University
of Connecticut School of Medicine, Farmington, CT, USA
| | - Roselyn O. Oyenuga
- Department of Obstetrics & Gynecology, University
of Connecticut School of Medicine, Farmington, CT, USA
| | - Olatoyosi Olafuyi
- Department of Obstetrics & Gynecology, University
of Connecticut School of Medicine, Farmington, CT, USA
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4
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Koren O, Konnikova L, Brodin P, Mysorekar IU, Collado MC. The maternal gut microbiome in pregnancy: implications for the developing immune system. Nat Rev Gastroenterol Hepatol 2024; 21:35-45. [PMID: 38097774 DOI: 10.1038/s41575-023-00864-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/20/2023] [Indexed: 01/04/2024]
Abstract
The gut microbiome has important roles in host metabolism and immunity, and microbial dysbiosis affects human physiology and health. Maternal immunity and microbial metabolites during pregnancy, microbial transfer during birth, and transfer of immune factors, microorganisms and metabolites via breastfeeding provide critical sources of early-life microbial and immune training, with important consequences for human health. Only a few studies have directly examined the interactions between the gut microbiome and the immune system during pregnancy, and the subsequent effect on offspring development. In this Review, we aim to describe how the maternal microbiome shapes overall pregnancy-associated maternal, fetal and early neonatal immune systems, focusing on the existing evidence and highlighting current gaps to promote further research.
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Affiliation(s)
- Omry Koren
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Liza Konnikova
- Department of Paediatrics and Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Petter Brodin
- Department of Immunology and Inflammation, Imperial College London, London, UK
- Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Indira U Mysorekar
- Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Maria Carmen Collado
- Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Valencia, Spain.
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5
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Batorsky R, Ceasrine AM, Shook LL, Kislal S, Bordt EA, Devlin BA, Perlis RH, Slonim DK, Bilbo SD, Edlow AG. Hofbauer cells and fetal brain microglia share transcriptional profiles and responses to maternal diet-induced obesity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.16.571680. [PMID: 38187648 PMCID: PMC10769274 DOI: 10.1101/2023.12.16.571680] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Maternal immune activation is associated with adverse offspring neurodevelopmental outcomes, many mediated by in utero microglial programming. As microglia remain inaccessible throughout development, identification of noninvasive biomarkers reflecting fetal brain microglial programming could permit screening and intervention. We used lineage tracing to demonstrate the shared ontogeny between fetal brain macrophages (microglia) and fetal placental macrophages (Hofbauer cells) in a mouse model of maternal diet-induced obesity, and single-cell RNA-seq to demonstrate shared transcriptional programs. Comparison with human datasets demonstrated conservation of placental resident macrophage signatures between mice and humans. Single-cell RNA-seq identified common alterations in fetal microglial and Hofbauer cell gene expression induced by maternal obesity, as well as sex differences in these alterations. We propose that Hofbauer cells, which are easily accessible at birth, provide novel insights into fetal brain microglial programs, and may facilitate the early identification of offspring vulnerable to neurodevelopmental disorders in the setting of maternal exposures.
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Affiliation(s)
| | - Alexis M. Ceasrine
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Lydia L. Shook
- Division of Maternal-Fetal Medicine, Department of Ob/Gyn, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sezen Kislal
- Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Evan A. Bordt
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Benjamin A. Devlin
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Roy H. Perlis
- Department of Psychiatry and Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Donna K. Slonim
- Department of Computer Science, Tufts University, Medford, MA
| | - Staci D. Bilbo
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
- Department of Neurobiology, Duke University, Durham, NC, USA
- Lurie Center for Autism, Massachusetts General Hospital, Boston, MA
| | - Andrea G. Edlow
- Division of Maternal-Fetal Medicine, Department of Ob/Gyn, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, Massachusetts General Hospital, Boston, Massachusetts, USA
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6
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Busuioc CJ, Roşu GC, Zorilă GL, Mogoantă L, Istrate-Ofiţeru AM, Pirici D, Liliac IM, Iovan L, Berbecaru EIA, Comănescu MC, Cazacu SM, Iliescu DG. The influence of SARS-CoV-2 on the immune system elements and on the placental structure. Clinical, histological and immunohistochemical study. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY = REVUE ROUMAINE DE MORPHOLOGIE ET EMBRYOLOGIE 2023; 64:549-557. [PMID: 38184836 PMCID: PMC10863699 DOI: 10.47162/rjme.64.4.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/28/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND The effects of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection during pregnancy remain relatively unknown. AIM We present this original paper where we analyzed 60 parturients, at term, 30 without associated infection (C-) and 30 with associated infection (C+), present at birth. METHODS We analyzed the blood count and placental microscopic structure through classical and immunohistochemical staining and observed the placental areas affected by the presence of SARS-CoV-2. RESULTS SARS-CoV-2 infection was accompanied by a decrease in the number of lymphocytes, the number of platelets and the presence of placental structural changes, identifying extensive areas of amyloid deposits, placental infarcts, vascular thrombosis, syncytial knots, with a decrease in placental vascular density and the presence of infection in the cells located at decidual level, at syncytiotrophoblast level and at the level of the cells of the chorionic plate, still without overcoming this barrier and without causing any fetal infection in the analyzed cases. CONCLUSIONS This study shows that the invasion of SARS-CoV-2 in the placenta can produce significant structural changes, with a decrease in placental vascular density that can have significant implications on proper fetal perfusion. Also, the presence of immunoreactivity at the level of decidua, the placental villi, as well as the chorionic plate proves that the virus can overcome the maternal-fetal barrier. However, in the analyzed cases there were no fetal infections at birth, which may show that local placental factors can be a protective filter for the fetus.
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Affiliation(s)
| | | | - George-Lucian Zorilă
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy of Craiova, Romania
| | - Laurenţiu Mogoantă
- Department of Histology, University of Medicine and Pharmacy of Craiova, Romania
- Romanian Academy of Medical Sciences, Craiova Subsidiary, Romania
| | | | - Daniel Pirici
- Department of Histology, University of Medicine and Pharmacy of Craiova, Romania
| | - Ilona Mihaela Liliac
- Department of Histology, University of Medicine and Pharmacy of Craiova, Romania
| | - Larisa Iovan
- Department of Histology, University of Medicine and Pharmacy of Craiova, Romania
| | | | | | - Sergiu Marian Cazacu
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, Romania
| | - Dominic-Gabriel Iliescu
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy of Craiova, Romania
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7
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Silberstein E, Chung CC, Debrabant A. The transcriptome landscape of 3D-cultured placental trophoblasts reveals activation of TLR2 and TLR3/7 in response to low Trypanosoma cruzi parasite exposure. Front Microbiol 2023; 14:1256385. [PMID: 37799608 PMCID: PMC10548471 DOI: 10.3389/fmicb.2023.1256385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/04/2023] [Indexed: 10/07/2023] Open
Abstract
Vertical transmission of Trypanosoma cruzi (T. cruzi) become a globalized health problem accounting for 22% of new cases of Chagas disease (CD). Congenital infection is now considered the main route of CD spread in non-endemic countries where no routine disease testing of pregnant women is implemented. The main mechanisms that lead to fetal infection by T. cruzi remain poorly understood. Mother-to-child transmission may occur when bloodstream trypomastigotes interact with the syncytiotrophoblasts (SYNs) that cover the placenta chorionic villi. These highly specialized cells function as a physical barrier and modulate immune responses against pathogen infections. To model the human placenta environment, we have previously used a three-dimensional (3D) cell culture system of SYNs that exhibits differentiation characteristics comparable to placental trophoblasts. Further, we have shown that 3D-grown SYNs are highly resistant to T. cruzi infection. In this work, we used RNA sequencing and whole transcriptome analysis to explore the immunological signatures that drive SYNs' infection control. We found that the largest category of differentially expressed genes (DEGs) are associated with inflammation and innate immunity functions. Quantitative RT-PCR evaluation of selected DEGs, together with detection of cytokines and chemokines in SYNs culture supernatants, confirmed the transcriptome data. Several genes implicated in the Toll-like receptors signaling pathways were upregulated in 3D-grown SYNs. In fact, TLR2 blockade and TLR3/7 knockdown stimulated T. cruzi growth, suggesting that these molecules play a significant role in the host cell response to infection. Ingenuity Pathway Analysis of DEGs predicted the activation of canonical pathways such as S100 protein family, pathogen induced cytokine storm, wound healing, HIF1α signaling and phagosome formation after T. cruzi exposure. Our findings indicate that SYNs resist infection by eliciting a constitutive pro-inflammatory response and modulating multiple defense mechanisms that interfere with the parasite's intracellular life cycle, contributing to parasite killing and infection control.
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Affiliation(s)
- Erica Silberstein
- Laboratory of Emerging Pathogens, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Charles C. Chung
- High-performance Integrated Virtual Environment Team, Office of Biostatistics and Epidemiology, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Alain Debrabant
- Laboratory of Emerging Pathogens, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
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8
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Beltrami S, Rizzo S, Schiuma G, Speltri G, Di Luca D, Rizzo R, Bortolotti D. Gestational Viral Infections: Role of Host Immune System. Microorganisms 2023; 11:1637. [PMID: 37512810 PMCID: PMC10383666 DOI: 10.3390/microorganisms11071637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
Viral infections in pregnancy are major causes of maternal and fetal morbidity and mortality. Infections can develop in the neonate transplacentally, perinatally, or postnatally (from breast milk or other sources) and lead to different clinical manifestations, depending on the viral agent and the gestational age at exposure. Viewing the peculiar tolerogenic status which characterizes pregnancy, viruses could exploit this peculiar immunological status to spread or affect the maternal immune system, adopting several evasion strategies. In fact, both DNA and RNA virus might have a deep impact on both innate and acquired immune systems. For this reason, investigating the interaction with these pathogens and the host's immune system during pregnancy is crucial not only for the development of most effective therapies and diagnosis but mostly for prevention. In this review, we will analyze some of the most important DNA and RNA viruses related to gestational infections.
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Affiliation(s)
- Silvia Beltrami
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy
| | - Sabrina Rizzo
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy
| | - Giovanna Schiuma
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy
| | - Giorgia Speltri
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy
| | - Dario Di Luca
- Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
| | - Roberta Rizzo
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy
| | - Daria Bortolotti
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy
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9
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Heeralall C, Ibrahim UH, Lazarus L, Gathiram P, Mackraj I. The effects of COVID-19 on placental morphology. Placenta 2023; 138:88-96. [PMID: 37235921 DOI: 10.1016/j.placenta.2023.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/10/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023]
Abstract
The impact of the COVID-19 infection, caused by Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), during the pandemic has been considerably more severe in pregnant women than non-pregnant women. Therefore, a review detailing the morphological alterations and physiological changes associated with COVID-19 during pregnancy and the effect that these changes have on the feto-placental unit is of high priority. This knowledge is crucial for these mothers, their babies and clinicians to ensure a healthy life post-pandemic. Hence, we review the placental morphological changes due to COVID-19 to enhance the general understanding of how pregnant mothers, their placentas and unborn children may have been affected by this pandemic. Based on current literature, we deduced that COVID-19 pregnancies were oxygen deficient, which could further result in other pregnancy-related complications like preeclampsia and IUGR. Therefore, we present an up-to-date review of the COVID-19 pathophysiological implications on the placenta, covering the function of the placenta in COVID-19, the effects of this virus on the placenta, its functions and its link to other gestational complications. Furthermore, we highlight the possible effects of COVID-19 therapeutic interventions on pregnant mothers and their unborn children. Based on the literature, we strongly suggest that consistent surveillance for the mothers and infants from COVID-19 pregnancies be prioritised in the future. Though the pandemic is now in the past, its effects are long-term, necessitating the monitoring of clinical manifestations in the near future.
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Affiliation(s)
- C Heeralall
- Discipline of Clinical Anatomy, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - U H Ibrahim
- Discipline of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - L Lazarus
- Discipline of Clinical Anatomy, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - P Gathiram
- Discipline of Family Medicine, School of Public Health and Nursing, University of KwaZulu-Natal, Durban, South Africa
| | - I Mackraj
- Discipline of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
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10
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Emerging Roles of Endocannabinoids as Key Lipid Mediators for a Successful Pregnancy. Int J Mol Sci 2023; 24:ijms24065220. [PMID: 36982295 PMCID: PMC10048990 DOI: 10.3390/ijms24065220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
In recent years, Cannabis use/misuse for treating pregnancy-related symptoms and other chronic conditions has increased among pregnant women, favored by decriminalization and/or legalization of its recreational uses in addition to its easy accessibility. However, there is evidence that prenatal Cannabis exposure might have adverse consequences on pregnancy progression and a deleterious impact on proper neurodevelopmental trajectories in the offspring. Maternal Cannabis use could interfere with the complex and finely controlled role performed by the endocannabinoid system in reproductive physiology, impairing multiple gestational processes from blastocyst implantation to parturition, with long-lasting intergenerational effects. In this review, we discuss current clinical and preclinical evidence regarding the role of endocannabinoids in development, function, and immunity of the maternal–fetal interface, focusing on the impact of Cannabis constituents on each of these gestational processes. We also discuss the intrinsic limitations of the available studies and the future perspectives in this challenging research field.
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11
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Motomura K, Hara M, Ito I, Morita H, Matsumoto K. Roles of human trophoblasts' pattern recognition receptors in host defense and pregnancy complications. J Reprod Immunol 2023; 156:103811. [PMID: 36669386 DOI: 10.1016/j.jri.2023.103811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 12/24/2022] [Accepted: 01/12/2023] [Indexed: 01/14/2023]
Abstract
The immune system in pregnancy is able to protect pregnant mothers and fetuses from pathogenic microorganisms even while permitting the mother to tolerate the semi-allogenic fetus. Trophoblasts, which are fetal-derived placental cells, play a central role on both sides of this duality at the maternal-fetal interface. In brief, the trophoblasts express pattern recognition receptors (PRRs) and are involved in the local innate immune response in the placenta. That response eliminates pathogenic microbes but also causes tissue damage. In this review, we summarize the research findings to date regarding the roles of those human trophoblast PRRs. Multiple types of PRRs (Toll-like receptors, Nod-like receptors, and RIG-I-like receptors) are expressed in the placenta and on trophoblasts. Trophoblasts' PRRs participate in protecting the fetus against viruses, bacteria, and parasites by triggering production of proinflammatory cytokines and chemokines in the placenta. On the negative side, PRR signaling in trophoblasts can also initiate inflammation and trophoblast cell death, which can lead to placental inflammation-associated pregnancy complications such as preeclampsia, anti-phospholipid antibody syndrome, and miscarriage. Further elucidation of these dual roles of trophoblasts' PRRs may shed light on the mechanisms by which fetuses are protected against congenital infections and also give us a better understanding of the etiologies of pregnancy complications, which can help us prevent/reduce adverse prenatal/neonatal outcomes.
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Affiliation(s)
- Kenichiro Motomura
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo 157-8535, Japan.
| | - Mariko Hara
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; Department of Otorhinolaryngology, National Center for Child Health and Development, Tokyo 157-8535, Japan
| | - Ikuyo Ito
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; Department of Pediatrics, School of Medicine, Yokohama City University, Kanagawa 236-0004, Japan
| | - Hideaki Morita
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; Allergy Center, National Center for Child Health and Development, Tokyo 157-8535, Japan
| | - Kenji Matsumoto
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
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12
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Zengeler KE, Shapiro DA, Bruch KR, Lammert CR, Ennerfelt H, Lukens JR. SSRI treatment modifies the effects of maternal inflammation on in utero physiology and offspring neurobiology. Brain Behav Immun 2023; 108:80-97. [PMID: 36343752 PMCID: PMC10291741 DOI: 10.1016/j.bbi.2022.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/17/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022] Open
Abstract
Perturbations to the in utero environment can dramatically change the trajectory of offspring neurodevelopment. Insults commonly encountered in modern human life such as infection, toxins, high-fat diet, prescription medications, and others are increasingly linked to behavioral alterations in prenatally-exposed offspring. While appreciation is expanding for the potential consequence that these triggers can have on embryo development, there is a paucity of information concerning how the crucial maternal-fetal interface (MFI) responds to these various insults and how it may relate to changes in offspring neurodevelopment. Here, we found that the MFI responds both to an inflammatory state and altered serotonergic tone in pregnant mice. Maternal immune activation (MIA) triggered an acute inflammatory response in the MFI dominated by interferon signaling that came at the expense of ordinary development-related transcriptional programs. The major MFI compartments, the decidua and the placenta, each responded in distinct manners to MIA. MFIs exposed to MIA were also found to have disrupted sex-specific gene expression and heightened serotonin levels. We found that offspring exposed to MIA had sex-biased behavioral changes and that microglia were not transcriptionally impacted. Moreover, the combination of maternal inflammation in the presence of pharmacologic inhibition of serotonin reuptake further transformed MFI physiology and offspring neurobiology, impacting immune and serotonin signaling pathways alike. In all, these findings highlight the complexities of evaluating diverse environmental impacts on placental physiology and neurodevelopment.
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Affiliation(s)
- Kristine E Zengeler
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA; Neuroscience Graduate Program, University of Virginia, Charlottesville, VA 22908, USA; Cell and Molecular Biology Graduate Training Program, University of Virginia, Charlottesville, VA 22908, USA.
| | - Daniel A Shapiro
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA
| | - Katherine R Bruch
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA
| | - Catherine R Lammert
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA; Neuroscience Graduate Program, University of Virginia, Charlottesville, VA 22908, USA
| | - Hannah Ennerfelt
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA; Neuroscience Graduate Program, University of Virginia, Charlottesville, VA 22908, USA; Cell and Molecular Biology Graduate Training Program, University of Virginia, Charlottesville, VA 22908, USA
| | - John R Lukens
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA; Neuroscience Graduate Program, University of Virginia, Charlottesville, VA 22908, USA; Cell and Molecular Biology Graduate Training Program, University of Virginia, Charlottesville, VA 22908, USA.
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13
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Chen Q, Shan D, Xie Y, Luo X, Wu Y, Chen Q, Dong R, Hu Y. Single cell RNA sequencing research in maternal fetal interface. Front Cell Dev Biol 2023; 10:1079961. [PMID: 36704195 PMCID: PMC9871254 DOI: 10.3389/fcell.2022.1079961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/27/2022] [Indexed: 01/12/2023] Open
Abstract
The maternal-fetal interface is an essential environment for embryonic growth and development, and a successful pregnancy depends on the dynamic balance of the microenvironment at the maternal-fetal interface. Single-cell sequencing, which unlike bulk sequencing that provides averaged data, is a robust method for interpreting the cellular and molecular landscape at single-cell resolution. With the support of single-cell sequencing, the issue of maternal-fetal interface heterogeneity during pregnancy has been more deeply elaborated and understood, which is important for a deeper understanding of physiological and pathological pregnancy. In this paper, we analyze the recent studies of single-cell transcriptomics in the maternal-fetal interface, and provide new directions for understanding and treating various pathological pregnancies.
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Affiliation(s)
- Qian Chen
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China,*Correspondence: Qian Chen, ; Yayi Hu,
| | - Dan Shan
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Yupei Xie
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Xingrong Luo
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Yuxia Wu
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Qiuhe Chen
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Ruihong Dong
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Yayi Hu
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China,Qingbaijiang Maternal and Child Health Hospital, Chengdu, China,*Correspondence: Qian Chen, ; Yayi Hu,
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14
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Yamanaka M, Sanada A, Nakagawa T, Sato K, Watanabe J, Yokoo M, Hirayama T. Effect of seaweed feeding before calving on colostral IgA concentration in Japanese Black cows. Anim Sci J 2023; 94:e13900. [PMID: 38061880 DOI: 10.1111/asj.13900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/16/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023]
Abstract
In this study, we investigated the effect of feeding seaweed to Japanese Black cows before calving on IgA concentrations in colostrum. Seven Japanese Black breeding cows were used as test animals, with three cows in the seaweed-fed group (seaweed group) and four in the seaweed-non-fed group (control group). Each cow was fed 6 kg of sudangrass hay and 2.5 kg of compound feed twice daily (09:00 a.m. and 04:00 p.m.) as basal diets. Both groups had free access to water. In the seaweed group, commercially available seaweed feed was fed from 2 months before calving until the day of calving. The seaweed of 150 g/head/day was added to the basal diet at the morning feeding. Colostrum collected immediately after calving was used to measure IgA concentrations by ELISA. The IgA concentration in colostrum was significantly higher in the seaweed group than in the control group (P < 0.05). This suggested that feeding seaweed to Japanese Black cows before calving may increase IgA concentration in colostrum.
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Affiliation(s)
- Maho Yamanaka
- Faculty of Bioresource Sciences, Akita Prefectural University, Akita, Japan
| | - Ayuka Sanada
- Agri-Innovation Education and Research Center, Akita Prefectural University, Akita, Japan
| | - Toshinori Nakagawa
- School of Environmental Science, University of Shiga Prefecture, Hikone, Japan
| | - Katsuyoshi Sato
- Faculty of Bioresource Sciences, Akita Prefectural University, Akita, Japan
| | - Jun Watanabe
- Agri-Innovation Education and Research Center, Akita Prefectural University, Akita, Japan
| | - Masaki Yokoo
- Faculty of Bioresource Sciences, Akita Prefectural University, Akita, Japan
| | - Takuji Hirayama
- School of Bioresources and Environmental Science, Ishikawa Prefectural University, Nonoichi, Japan
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15
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Anandam KY, Abad C, Synova T, Vinas-Noguera M, Bolboli B, Vokral I, Karahoda R, Staud F. Precision-cut rat placental slices as a model to study sex-dependent inflammatory response to LPS and Poly I:C. Front Immunol 2022; 13:1083248. [PMID: 36605215 PMCID: PMC9807759 DOI: 10.3389/fimmu.2022.1083248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Maternal inflammation in pregnancy represents a major hallmark of several pregnancy complications and a significant risk factor for neurodevelopmental and neuropsychiatric disorders in the offspring. As the interface between the mother and the fetus, the placenta plays a crucial role in fetal development and programming. Moreover, studies have suggested that the placenta responds to an inflammatory environment in a sex-biased fashion. However, placenta-mediated immunoregulatory mechanisms are still poorly understood. Methods Therefore, we have developed a model of ex vivo precision-cut placental slices from the rat term placenta to study acute inflammatory response. Rat placental slices with a precise thickness of 200 µm were generated separately from male and female placentas. Inflammation was stimulated by exposing the slices to various concentrations of LPS or Poly I:C for 4 and 18 hours. Results Treatment of placental slices with LPS significantly induced the expression and release of proinflammatory cytokines TNF-α, IL-6, and IL-1β. In contrast, Poly I:C treatment resulted in a less-pronounced inflammatory response. Interestingly, the female placenta showed higher sensitivity to LPS than male placenta. Anti-inflammatory agents, curcumin, 1α,25- dihydroxyvitamin D3, and progesterone attenuated the LPS-induced proinflammatory cytokine response at both mRNA and protein levels. Discussion We conclude that rat placental slices represent a novel alternative model to study the role of sexual dimorphism in the acute inflammatory response and immune activation in pregnancy.
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16
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Placental extracellular vesicles in maternal-fetal communication during pregnancy. Biochem Soc Trans 2022; 50:1785-1795. [DOI: 10.1042/bst20220734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022]
Abstract
For several years, a growing number of studies have highlighted the pivotal role of placental extracellular vesicles (EVs) throughout pregnancy. These membrane nanovesicles, heterogeneous in nature, composition and origin, are secreted by several trophoblastic cell types and are found in both the maternal and fetal compartments. They can be uptaken by recipient cells and drive a wide variety of physiological and pathological processes. In this review, we provide an overview of the different described roles of placental EVs in various aspects of normal pregnancy, from placenta establishment to maternal immune tolerance towards the fetus and protection against viral infections. In the second part, we present selected examples of pathological pregnancies in which placental EVs are involved, such as gestational diabetes mellitus, pre-eclampsia, and congenital infections. Since the abundance and/or composition of placental EVs is deregulated in maternal serum during pathological pregnancies, this makes them interesting candidates as non-invasive biomarkers for gestational diseases and opens a wide field of translational perspectives.
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17
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The pathologic changes of human placental macrophages in women with hyperglycemia in pregnancy. Placenta 2022; 130:60-66. [DOI: 10.1016/j.placenta.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 10/24/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022]
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18
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Zheng Y, Pan J, Xia C, Chen H, Zhou H, Ju W, Wegiel J, Myatt L, Roberts JM, Guo X, Zhong N. Characterization of placental and decidual cell development in early pregnancy loss by single-cell RNA sequencing. Cell Biosci 2022; 12:168. [PMID: 36209198 PMCID: PMC9548121 DOI: 10.1186/s13578-022-00904-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 09/24/2022] [Indexed: 11/06/2022] Open
Abstract
Background Early pregnancy loss (EPL) presents as sporadic or recurrent miscarriage during the first trimester. In addition to chromosomal defects, EPL may result from impairment of the placental-decidual interface at early gestational age due to gene-environmental interactions. Methods To better understand the pathogenesis associated with this impairment, cell development in chorionic villi and decidua of different forms of EPL (sporadic or recurrent) was investigated with single-cell RNA sequencing and compared to that of normal first-trimester tissue. Results Unique gene expression signatures were obtained for the different forms of EPL and for normal tissue and the composition of placental and decidual cell clusters in each form was established. In particular, the involvement of macrophages in the EPL phenotypes was identified revealing an immunoactive state. Conclusion Differential gene expression and unique marker genes among cell clusters from chorionic villi and decidua of miscarried and normal pregnancies, may lead to identification of biomarker for EPL. Supplementary Information The online version contains supplementary material available at 10.1186/s13578-022-00904-5.
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Affiliation(s)
- Yuhua Zheng
- Maternity and Child Healthcare Hospital, Foshan Women and Children, 11 W. Renmin Lu, Foshan, 528000 China
| | - Jing Pan
- Maternity and Child Healthcare Hospital, Foshan Women and Children, 11 W. Renmin Lu, Foshan, 528000 China
| | - Chenglai Xia
- Maternity and Child Healthcare Hospital, Foshan Women and Children, 11 W. Renmin Lu, Foshan, 528000 China
| | - Haiying Chen
- Maternity and Child Healthcare Hospital, Foshan Women and Children, 11 W. Renmin Lu, Foshan, 528000 China
| | - Huadong Zhou
- Maternity and Child Healthcare Hospital, Foshan Women and Children, 11 W. Renmin Lu, Foshan, 528000 China
| | - Weina Ju
- grid.420001.70000 0000 9813 9625New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314 USA
| | - Jerzy Wegiel
- grid.420001.70000 0000 9813 9625New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314 USA
| | - Leslie Myatt
- grid.5288.70000 0000 9758 5690Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239 USA
| | - James M. Roberts
- grid.5288.70000 0000 9758 5690Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239 USA ,grid.460217.60000 0004 0387 4432Department of Obstetrics, Gynecology and Reproductive Sciences, Epidemiology and Clinical and Translational Research University of Pittsburgh, Magee-Womens Research Institute, 204 Craft Avenue, Pittsburgh, PA 15213 USA
| | - Xiaoling Guo
- Maternity and Child Healthcare Hospital, Foshan Women and Children, 11 W. Renmin Lu, Foshan, 528000 China
| | - Nanbert Zhong
- grid.420001.70000 0000 9813 9625New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314 USA
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19
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Abdelkader NF, El-Batal AI, Amin YM, Hawas AM, Hassan SHM, Eid NI. Neuroprotective Effect of Gold Nanoparticles and Alpha-Lipoic Acid Mixture against Radiation-Induced Brain Damage in Rats. Int J Mol Sci 2022; 23:ijms23179640. [PMID: 36077035 PMCID: PMC9456030 DOI: 10.3390/ijms23179640] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/15/2022] [Accepted: 08/20/2022] [Indexed: 11/16/2022] Open
Abstract
The current study aims to evaluate the possible neuroprotective impact of gold nanoparticles (AuNPs) and an alpha-lipoic acid (ALA) mixture against brain damage in irradiated rats. AuNPs were synthesized and characterized using different techniques. Then, a preliminary investigation was carried out to determine the neuroprotective dose of AuNPs, where three single doses (500, 1000, and 1500 µg/kg) were orally administrated to male Wistar rats, one hour before being exposed to a single dose of 7Gy gamma radiation. One day following irradiation, the estimation of oxidative stress biomarkers (malondialdehyde, MDA; glutathione peroxidase, GPX), DNA fragmentation, and histopathological alterations were performed in brain cortical and hippocampal tissues in both normal and irradiated rats. The chosen neuroprotective dose of AuNPs (1000 µg/kg) was processed with ALA (100 mg/kg) to prepare the AuNPs-ALA mixture. The acute neuroprotective effect of AuNPs-ALA in irradiated rats was determined against valproic acid as a neuroprotective centrally acting reference drug. All drugs were orally administered one hour before the 7Gy-gamma irradiation. One day following irradiation, animals were sacrificed and exposed to examinations such as those of the preliminary experiment. Administration of AuNPs, ALA, and AuNPs-ALA mixture before irradiation significantly attenuated the radiation-induced oxidative stress through amelioration of MDA content and GPX activity along with alleviating DNA fragmentation and histopathological changes in both cortical and hippocampal tissues. Notably, the AuNPs-ALA mixture showed superior effect compared to that of AuNPs or ALA alone, as it mitigated oxidative stress, DNA damage, and histopathological injury collectively. Administration of AuNPs-ALA resulted in normalized MDA content, increased GPX activity, restored DNA content in the cortex and hippocampus besides only mild histopathological changes. The present data suggest that the AuNPs-ALA mixture may be considered a potential candidate for alleviating radiation-associated brain toxicity.
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Affiliation(s)
- Noha F. Abdelkader
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo 11562, Egypt
- Correspondence: ; Tel.: +20-223624917
| | - Ahmed I. El-Batal
- Department of Drug Radiation Research, National Centre for Radiation Research and Technology (NCRRT)—Egyptian Atomic Energy Authority, Cairo 11787, Egypt
| | - Yara M. Amin
- Department of Drug Radiation Research, National Centre for Radiation Research and Technology (NCRRT)—Egyptian Atomic Energy Authority, Cairo 11787, Egypt
| | - Asrar M. Hawas
- Department of Drug Radiation Research, National Centre for Radiation Research and Technology (NCRRT)—Egyptian Atomic Energy Authority, Cairo 11787, Egypt
| | - Seham H. M. Hassan
- Department of Drug Radiation Research, National Centre for Radiation Research and Technology (NCRRT)—Egyptian Atomic Energy Authority, Cairo 11787, Egypt
| | - Nihad I. Eid
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo 11562, Egypt
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20
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Association of Toll-Like Receptor 2 (TLR2) Expression in Placenta and Intrauterine Exposure to Hepatitis B Virus. Interdiscip Perspect Infect Dis 2022; 2022:4838376. [PMID: 35875205 PMCID: PMC9300366 DOI: 10.1155/2022/4838376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction The placenta is a specialized organ that only performs during pregnancy and serves as an immunological barrier in preventing pathogens to reach the fetus. It has been known that toll-like receptors (TLRs) on the placenta respond to antigens, such as zymosan, lipopolysaccharide, and other viral infections. This study analyzes the distribution of TLR2 protein and hepatitis B DNA virus (HBV DNA) virus identification to gain an understanding of hepatitis B viral transmission from the mother to child. Methods We performed enzyme-linked immunoadsorbent assay of HBeAg, HBsAg titer, Anti-HBs, and Anti-HBc to 59 HBsAg-positive pregnant women and identified HBV DNA using nested PCR in their cord blood during delivery for evidence of exposure to HBV DNA. The expression of TLR2 protein in the placenta was performed using immunohistochemistry analysis. Results Intrauterine exposure to the hepatitis B virus occurred in 69.5% of all pregnant women who were HbsAg positive. TLR2 expression was predominantly identified in syncytiotrophoblast and cytotrophoblast cells with the highest score in mothers aged 20–35 years (75%), multigravida (58.3%), and mothers with term pregnancies (70.8%). Statistical analysis results showed that placental TLR2 expression did not indicate any association with hepatitis B virus DNA identified in cord blood with a p value of 0.730 and an OR of 0.650 (95% CI 0.173–2.440). Conclusion TLR2 expression is not associated with intrauterine exposure of hepatitis B virus.
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21
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Juttukonda LJ, Wachman EM, Boateng J, Jain M, Benarroch Y, Taglauer ES. Decidual immune response following COVID-19 during pregnancy varies by timing of maternal SARS-CoV-2 infection. J Reprod Immunol 2022; 151:103501. [PMID: 35231754 PMCID: PMC8867981 DOI: 10.1016/j.jri.2022.103501] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/05/2022] [Accepted: 02/18/2022] [Indexed: 11/17/2022]
Abstract
While COVID-19 infection during pregnancy is common, fetal transmission is rare, suggesting that intrauterine mechanisms form an effective blockade against SARS-CoV-2. Key among these is the decidual immune environment of the placenta. We hypothesize that decidual leukocytes are altered by maternal SARS-CoV-2 infection in pregnancy and that this decidual immune response is shaped by the timing of infection during gestation. To address this hypothesis, we collected decidua basalis tissues at delivery from women with symptomatic COVID-19 during second (2nd Tri COVID, n = 8) or third trimester (3rd Tri COVID, n = 8) and SARS-CoV-2-negative controls (Control, n = 8). Decidual natural killer (NK) cells, macrophages and T cells were evaluated using quantitative microscopy, and pro- and anti-inflammatory cytokine mRNA expression was evaluated using quantitative reverse transcriptase PCR (qRT-PCR). When compared with the Control group, decidual tissues from 3rd Tri COVID exhibited significantly increased macrophages, NK cells and T cells, whereas 2nd Tri COVID only had significantly increased T cells. In evaluating decidual cytokine expression, we noted that IL-6, IL-8, IL-10 and TNF-α were significantly correlated with macrophage cell abundance. However, in 2nd Tri COVID tissues, there was significant downregulation of IL-6, IL-8, IL-10, and TNF-α. Taken together, these results suggest innate and adaptive immune responses are present at the maternal-fetal interface in maternal SARS-CoV-2 infections late in pregnancy, and that infections earlier in pregnancy show evidence of a resolving immune response. Further studies are warranted to characterize the full scope of intrauterine immune responses in pregnancies affected by maternal COVID-19.
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Affiliation(s)
- Lillian J Juttukonda
- Boston Combined Residency Program, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; Department of Pediatrics, Boston Medical Center, 801 Albany Street, Boston, MA 02119, USA.
| | - Elisha M Wachman
- Department of Pediatrics, Boston Medical Center, 801 Albany Street, Boston, MA 02119, USA.
| | - Jeffery Boateng
- Department of Pediatrics, Boston Medical Center, 801 Albany Street, Boston, MA 02119, USA.
| | - Mayuri Jain
- Boston University School of Public Health, 715 Albany Street, Boston, MA 02119, USA.
| | - Yoel Benarroch
- Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USA.
| | - Elizabeth S Taglauer
- Department of Pediatrics, Boston Medical Center, 801 Albany Street, Boston, MA 02119, USA.
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22
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Chandrasekar V, Singh AV, Maharjan RS, Dakua SP, Balakrishnan S, Dash S, Laux P, Luch A, Singh S, Pradhan M. Perspectives on the Technological Aspects and Biomedical Applications of Virus‐Like Particles/Nanoparticles in Reproductive Biology: Insights on the Medicinal and Toxicological Outlook. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202200010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
| | - Ajay Vikram Singh
- German Federal Institute for Risk Assessment (BfR) Department of Chemical and Product Safety Max-Dohrn-Straße 8-10 10589 Berlin Germany
| | - Romi Singh Maharjan
- German Federal Institute for Risk Assessment (BfR) Department of Chemical and Product Safety Max-Dohrn-Straße 8-10 10589 Berlin Germany
| | | | | | - Sagnika Dash
- Obstetrics and Gynecology Apollo Clinic Qatar 23656 Doha Qatar
| | - Peter Laux
- German Federal Institute for Risk Assessment (BfR) Department of Chemical and Product Safety Max-Dohrn-Straße 8-10 10589 Berlin Germany
| | - Andreas Luch
- German Federal Institute for Risk Assessment (BfR) Department of Chemical and Product Safety Max-Dohrn-Straße 8-10 10589 Berlin Germany
| | - Suyash Singh
- Department of Neurosurgery All India Institute of Medical Sciences Raebareli UP 226001 India
| | - Mandakini Pradhan
- Department of Fetal Medicine Sanjay Gandhi Post Graduate Institute of Medical Sciences Reabareli Road Lucknow UP 226014 India
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23
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Tosevska A, Ghosh S, Ganguly A, Cappelletti M, Kallapur SG, Pellegrini M, Devaskar SU. Integrated analysis of an in vivo model of intra-nasal exposure to instilled air pollutants reveals cell-type specific responses in the placenta. Sci Rep 2022; 12:8438. [PMID: 35589747 PMCID: PMC9119931 DOI: 10.1038/s41598-022-12340-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 05/06/2022] [Indexed: 01/19/2023] Open
Abstract
The placenta is a heterogeneous organ whose development involves complex interactions of trophoblasts with decidual, vascular, and immune cells at the fetal-maternal interface. It maintains a critical balance between maternal and fetal homeostasis. Placental dysfunction can lead to adverse pregnancy outcomes including intra-uterine growth restriction, pre-eclampsia, or pre-term birth. Exposure to environmental pollutants contributes to the development of placental abnormalities, with poorly understood molecular underpinning. Here we used a mouse (C57BL/6) model of environmental pollutant exposure by administration of a particulate matter (SRM1649b at 300 μg/day/mouse) suspension intra-nasally beginning 2 months before conception and during gestation, in comparison to saline-exposed controls. Placental transcriptomes, at day 19 of gestation, were determined using bulk RNA-seq from whole placentas of exposed (n = 4) and control (n = 4) animals and scRNAseq of three distinct placental layers, followed by flow cytometry analysis of the placental immune cell landscape. Our results indicate a reduction in vascular placental cells, especially cells responsible for structural integrity, and increase in trophoblast proliferation in animals exposed to particulate matter. Pollution-induced inflammation was also evident, especially in the decidual layer. These data indicate that environmental exposure to air pollutants triggers changes in the placental cellular composition, mediating adverse pregnancy outcomes.
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Affiliation(s)
- Anela Tosevska
- grid.19006.3e0000 0000 9632 6718Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA USA ,grid.22937.3d0000 0000 9259 8492Present Address: Division of Rheumatology, Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Shubhamoy Ghosh
- grid.19006.3e0000 0000 9632 6718Division of Neonatology & Developmental Biology, Department of Pediatrics, and the UCLA Children’s Discovery & Innovation Institute, David Geffen School of Medicine at University of California Los Angeles, 10883, Le Conte Avenue, MDCC-22-412, Los Angeles, CA 90095-1752 USA
| | - Amit Ganguly
- grid.19006.3e0000 0000 9632 6718Division of Neonatology & Developmental Biology, Department of Pediatrics, and the UCLA Children’s Discovery & Innovation Institute, David Geffen School of Medicine at University of California Los Angeles, 10883, Le Conte Avenue, MDCC-22-412, Los Angeles, CA 90095-1752 USA
| | - Monica Cappelletti
- grid.19006.3e0000 0000 9632 6718Division of Neonatology & Developmental Biology, Department of Pediatrics, and the UCLA Children’s Discovery & Innovation Institute, David Geffen School of Medicine at University of California Los Angeles, 10883, Le Conte Avenue, MDCC-22-412, Los Angeles, CA 90095-1752 USA
| | - Suhas G. Kallapur
- grid.19006.3e0000 0000 9632 6718Division of Neonatology & Developmental Biology, Department of Pediatrics, and the UCLA Children’s Discovery & Innovation Institute, David Geffen School of Medicine at University of California Los Angeles, 10883, Le Conte Avenue, MDCC-22-412, Los Angeles, CA 90095-1752 USA
| | - Matteo Pellegrini
- grid.19006.3e0000 0000 9632 6718Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA USA
| | - Sherin U. Devaskar
- grid.19006.3e0000 0000 9632 6718Division of Neonatology & Developmental Biology, Department of Pediatrics, and the UCLA Children’s Discovery & Innovation Institute, David Geffen School of Medicine at University of California Los Angeles, 10883, Le Conte Avenue, MDCC-22-412, Los Angeles, CA 90095-1752 USA
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Marečková M, Massalha H, Lorenzi V, Vento-Tormo R. Mapping Human Reproduction with Single-Cell Genomics. Annu Rev Genomics Hum Genet 2022; 23:523-547. [PMID: 35567278 DOI: 10.1146/annurev-genom-120121-114415] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The trillions of cells in the human body develop as a result of the fusion of two extremely specialized cells: an oocyte and a sperm. This process is essential for the continuation of our species, as it ensures that parental genetic information is mixed and passed on from generation to generation. In addition to producing oocytes, the female reproductive system must provide the environment for the appropriate development of the fetus until birth. New genomic and computational tools offer unique opportunities to study the tight spatiotemporal regulatory mechanisms that are required for the cycle of human reproduction. This review explores how single-cell technologies have been used to build cellular atlases of the human reproductive system across the life span and how these maps have proven useful to better understand reproductive pathologies and dissect the heterogeneity of in vitro model systems. Expected final online publication date for the Annual Review of Genomics and Human Genetics, Volume 23 is October 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Magda Marečková
- Wellcome Sanger Institute, Cambridge, United Kingdom; .,Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, United Kingdom;
| | - Hassan Massalha
- Wellcome Sanger Institute, Cambridge, United Kingdom; .,Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
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25
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Kobia FM, Maiti K, Obimbo MM, Smith R, Gitaka J. Potential pharmacologic interventions targeting TLR signaling in placental malaria. Trends Parasitol 2022; 38:513-524. [DOI: 10.1016/j.pt.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 10/18/2022]
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Freyer L, Lallemand Y, Dardenne P, Sommer A, Biton A, Gomez Perdiguero E. Erythro-myeloid progenitor origin of Hofbauer cells in the early mouse placenta. Development 2022; 149:dev200104. [PMID: 35438172 PMCID: PMC9124577 DOI: 10.1242/dev.200104] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 03/31/2022] [Indexed: 12/17/2022]
Abstract
Hofbauer cells (HBCs) are tissue macrophages of the placenta thought to be important for fetoplacental vascular development and innate immune protection. The developmental origins of HBCs remain unresolved and could implicate functional diversity of HBCs in placenta development and disease. In this study, we used flow cytometry and paternally inherited reporters to phenotype placenta macrophages and to identify fetal-derived HBCs and placenta-associated maternal macrophages in the mouse. In vivo pulse-labeling traced the ontogeny of HBCs from yolk sac-derived erythro-myeloid progenitors, with a minor contribution from fetal hematopoietic stem cells later on. Single-cell RNA-sequencing revealed transcriptional similarities between placenta macrophages and erythro-myeloid progenitor-derived fetal liver macrophages and microglia. As with other fetal tissue macrophages, HBCs were dependent on the transcription factor Pu.1, the loss-of-function of which in embryos disrupted fetoplacental labyrinth morphology, supporting a role for HBC in labyrinth angiogenesis and/or remodeling. HBC were also sensitive to Pu.1 (Spi1) haploinsufficiency, which caused an initial deficiency in the numbers of macrophages in the early mouse placenta. These results provide groundwork for future investigation into the relationship between HBC ontogeny and function in placenta pathophysiology.
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Affiliation(s)
- Laina Freyer
- Institut Pasteur, Unit for Macrophages and Endothelial Cells, Developmental and Stem Cell Biology Department, UMR3738 CNRS, 75015 Paris, France
| | - Yvan Lallemand
- Institut Pasteur, Unit for Macrophages and Endothelial Cells, Developmental and Stem Cell Biology Department, UMR3738 CNRS, 75015 Paris, France
| | - Pascal Dardenne
- Institut Pasteur, Unit for Macrophages and Endothelial Cells, Developmental and Stem Cell Biology Department, UMR3738 CNRS, 75015 Paris, France
| | - Alina Sommer
- Institut Pasteur, Unit for Macrophages and Endothelial Cells, Developmental and Stem Cell Biology Department, UMR3738 CNRS, 75015 Paris, France
- Sorbonne Université, Collège Doctoral, F-75005 Paris, France
| | - Anne Biton
- Bioinformatics and Biostatistics Hub, Institut Pasteur, 75015 Paris, France
| | - Elisa Gomez Perdiguero
- Institut Pasteur, Unit for Macrophages and Endothelial Cells, Developmental and Stem Cell Biology Department, UMR3738 CNRS, 75015 Paris, France
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27
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Dash S, Syed YA, Khan MR. Understanding the Role of the Gut Microbiome in Brain Development and Its Association With Neurodevelopmental Psychiatric Disorders. Front Cell Dev Biol 2022; 10:880544. [PMID: 35493075 PMCID: PMC9048050 DOI: 10.3389/fcell.2022.880544] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/28/2022] [Indexed: 12/12/2022] Open
Abstract
The gut microbiome has a tremendous influence on human physiology, including the nervous system. During fetal development, the initial colonization of the microbiome coincides with the development of the nervous system in a timely, coordinated manner. Emerging studies suggest an active involvement of the microbiome and its metabolic by-products in regulating early brain development. However, any disruption during this early developmental process can negatively impact brain functionality, leading to a range of neurodevelopment and neuropsychiatric disorders (NPD). In this review, we summarize recent evidence as to how the gut microbiome can influence the process of early human brain development and its association with major neurodevelopmental psychiatric disorders such as autism spectrum disorders, attention-deficit hyperactivity disorder, and schizophrenia. Further, we discuss how gut microbiome alterations can also play a role in inducing drug resistance in the affected individuals. We propose a model that establishes a direct link of microbiome dysbiosis with the exacerbated inflammatory state, leading to functional brain deficits associated with NPD. Based on the existing research, we discuss a framework whereby early diet intervention can boost mental wellness in the affected subjects and call for further research for a better understanding of mechanisms that govern the gut-brain axis may lead to novel approaches to the study of the pathophysiology and treatment of neuropsychiatric disorders.
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Affiliation(s)
- Somarani Dash
- Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Yasir Ahmed Syed
- School of Biosciences and Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis Building, Cardiff, United Kingdom
| | - Mojibur R. Khan
- Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, India
- *Correspondence: Mojibur R. Khan,
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28
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Winkler CW, Clancy CS, Rosenke R, Peterson KE. Zika virus vertical transmission in interferon receptor1-antagonized Rag1 -/- mice results in postnatal brain abnormalities and clinical disease. Acta Neuropathol Commun 2022; 10:46. [PMID: 35379362 PMCID: PMC8981715 DOI: 10.1186/s40478-022-01351-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/18/2022] [Indexed: 11/10/2022] Open
Abstract
The mechanisms by which vertically transmitted Zika virus (ZIKV) causes postnatal brain development abnormalities and congenital disease remain poorly understood. Here, we optimized the established anti-IFNAR1 treated, Rag1-/- (AIR) mouse model of ZIKV infection to examine the consequence of vertical transmission on neonate survival and postnatal brain development. We found that modulating the infectious dose and the frequency of anti-IFNAR1 treatment of pregnant mice (termed AIRlow mice) prolonged neonatal survival allowing for pathogenesis studies of brain tissues at critical postnatal time points. Postnatal AIRlow mice all had chronic ZIKV infection in the brain that was associated with decreased cortical thickness and cerebellar volume, increased gliosis, and higher levels of cell death in many brain areas including cortex, hippocampus and cerebellum when compared to controls. Interestingly, despite active infection and brain abnormalities, the neurodevelopmental program remained active in AIRlow mice as indicated by elevated mRNA expression of critical neurodevelopmental genes in the brain and enlargement of neural-progenitor rich regions of the cerebellum at a developmental time point analogous to birth in humans. Nevertheless, around the developmental time point when the brain is fully populated by neurons, AIRlow mice developed neurologic disease associated with persistent ZIKV infection in the brain, gliosis, and increased cell death. Together, these data show that vertically transmitted ZIKV infection in the brain of postnatal AIRlow mice strongly influences brain development resulting in structural abnormalities and cell death in multiple regions of the brain.
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29
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Bonifácio LG, Melo M, Ayo CM, Assoni LCP, Olímpio LM, Nogueira MR, Spegiorin LCJF, Barbosa DMU, de Mattos LC, Pereira-Chioccola VL, Brandão CC. TNFα rs1799964 TT genotype may be a susceptibility factor for vertical transmission of Toxoplasma gondii and clinical signs in newborns from pregnant women with acute toxoplasmosis. Mol Biol Rep 2022; 49:4759-4768. [PMID: 35332413 DOI: 10.1007/s11033-022-07327-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/02/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND One of the main impacts of Toxoplasma gondii infection occurs during pregnancy and is related to the vertical transmission of the parasite (congenital toxoplasmosis), which can cause severe clinical outcomes and fetal death. During acute infection, in order to control the rapid replication of tachyzoites, different host immune response genes are activated, and these include cytokine-encoding genes. Considering that polymorphisms in cytokine genes may increase susceptibility to vertical transmission of T. gondii by determining the immune status of the pregnant woman, this study evaluated the influence of polymorphisms of tumor necrosis factor alpha (TNFα) rs1799964 (- 1031) and interleukin 1 beta (IL1β) rs16944 (- 511) genes on gestational toxoplasmosis and on the vertical transmission of the parasite and verified the allele and genotype frequency of these polymorphisms in pregnant patients whose respective newborn did or did not present clinical abnormalities suggestive of congenital toxoplasmosis. METHODS AND RESULTS A total of 204 pregnant patients with (n = 114) or without (n = 90) infection by T. gondii were enrolled. No associations were found involving the polymorphisms rs1799964 (- 1031) of the TNFα gene and rs16944 (- 511) of the IL1β gene with the increased chance of T. gondii infection during pregnancy. However, it was observed that the maternal TT genotype referring to the polymorphism of the TNFα gene seems to influence the vertical transmission of the parasite (P = 0.01; χ2 = 6.05) and the presence of clinical manifestation in newborns from pregnancies with acute toxoplasmosis (P = 0.007; χ2 = 9.68). CONCLUSION The TNFα rs1799964 TT genotype may act as a susceptibility factor for the vertical transmission of parasite and for the presence of clinical signs in newborns from pregnant women with acute toxoplasmosis.
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Affiliation(s)
- Lillian Gonzalez Bonifácio
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Mirele Melo
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Christiane Maria Ayo
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Letícia Carolina Paraboli Assoni
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Larissa Martins Olímpio
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Mariana Reis Nogueira
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Lígia Cosentino Junqueira Franco Spegiorin
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil.,High Risk Pregnancy Outpatient Clinic of Hospital de Base, Regional Medical Faculty Foundation of São José do Rio Preto (HB-FUNFARME), São José do Rio Preto, SP, Brazil
| | - Deusenia Machado Ulisses Barbosa
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil.,Pediatric Outpatient Clinic of Hospital de Base, Regional Medical Faculty Foundation of São José do Rio Preto (HB-FUNFARME), São José do Rio Preto, SP, Brazil
| | - Luiz Carlos de Mattos
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | | | - Cinara Cássia Brandão
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil.
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30
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Ortega MA, Fraile-Martínez O, García-Montero C, Sáez MA, Álvarez-Mon MA, Torres-Carranza D, Álvarez-Mon M, Bujan J, García-Honduvilla N, Bravo C, Guijarro LG, De León-Luis JA. The Pivotal Role of the Placenta in Normal and Pathological Pregnancies: A Focus on Preeclampsia, Fetal Growth Restriction, and Maternal Chronic Venous Disease. Cells 2022; 11:cells11030568. [PMID: 35159377 PMCID: PMC8833914 DOI: 10.3390/cells11030568] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 12/01/2022] Open
Abstract
The placenta is a central structure in pregnancy and has pleiotropic functions. This organ grows incredibly rapidly during this period, acting as a mastermind behind different fetal and maternal processes. The relevance of the placenta extends far beyond the pregnancy, being crucial for fetal programming before birth. Having integrative knowledge of this maternofetal structure helps significantly in understanding the development of pregnancy either in a proper or pathophysiological context. Thus, the aim of this review is to summarize the main features of the placenta, with a special focus on its early development, cytoarchitecture, immunology, and functions in non-pathological conditions. In contraposition, the role of the placenta is examined in preeclampsia, a worrisome hypertensive disorder of pregnancy, in order to describe the pathophysiological implications of the placenta in this disease. Likewise, dysfunction of the placenta in fetal growth restriction, a major consequence of preeclampsia, is also discussed, emphasizing the potential clinical strategies derived. Finally, the emerging role of the placenta in maternal chronic venous disease either as a causative agent or as a consequence of the disease is equally treated.
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Affiliation(s)
- Miguel A. Ortega
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, 28801 Alcalá de Henares, Madrid, Spain
- Correspondence: ; Tel.: +34-91-885-4540; Fax: +34-91-885-4885
| | - Oscar Fraile-Martínez
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
| | - Cielo García-Montero
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
| | - Miguel A. Sáez
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
- Pathological Anatomy Service, Central University Hospital of Defence-UAH, 28047 Madrid, Spain
| | - Miguel Angel Álvarez-Mon
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
| | - Diego Torres-Carranza
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
| | - Melchor Álvarez-Mon
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
- Immune System Diseases-Rheumatology and Oncology Service, University Hospital Príncipe de Asturias, CIBEREHD, 28801 Alcalá de Henares, Madrid, Spain
| | - Julia Bujan
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
| | - Natalio García-Honduvilla
- Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain; (O.F.-M.); (C.G.-M.); (M.A.S.); (M.A.Á.-M.); (D.T.-C.); (M.Á.-M.); (J.B.); (N.G.-H.)
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
| | - Coral Bravo
- Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (C.B.); (J.A.D.L.-L.)
- Department of Obstetrics and Gynecology, University Hospital Gregorio Marañón, 28009 Madrid, Spain
- Health Research Institute Gregorio Marañón, 28009 Madrid, Spain
| | - Luis G. Guijarro
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), 28034 Madrid, Spain;
- Unit of Biochemistry and Molecular Biology (CIBEREHD), Department of System Biology, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain
| | - Juan A. De León-Luis
- Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (C.B.); (J.A.D.L.-L.)
- Department of Obstetrics and Gynecology, University Hospital Gregorio Marañón, 28009 Madrid, Spain
- Health Research Institute Gregorio Marañón, 28009 Madrid, Spain
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Semmes EC, Coyne CB. Innate immune defenses at the maternal-fetal interface. Curr Opin Immunol 2022; 74:60-67. [PMID: 34768027 PMCID: PMC11063961 DOI: 10.1016/j.coi.2021.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/12/2021] [Accepted: 10/20/2021] [Indexed: 12/19/2022]
Abstract
The human maternal-fetal interface is an immunologically complex environment that must balance the divergent demands of tolerance towards the developing fetus with anti-pathogen defense. The innate immune responses at the maternal-fetal interface that function in anti-microbial defense have been understudied to-date and how 'TORCH' pathogens evade maternal innate immunity to infect the fetus remains poorly understood. Herein, we discuss how newly described decidual innate lymphoid cells and maternal placenta-associated macrophage subsets may be involved in anti-pathogen defense. Moreover, we outline recent advances in our understanding of how placental trophoblasts and fetal-derived macrophages (Hofbauer cells) function in anti-microbial defense. In summary, we highlight current gaps in knowledge and describe novel experimental models of the human decidua and placenta that are poised to advance our knowledge of innate immune defenses at the maternal-fetal interface.
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Affiliation(s)
- Eleanor C Semmes
- Medical Scientist Training Program, Duke University, Durham, NC, USA; Molecular Genetics and Microbiology Department, Duke University, Durham, NC, USA; Duke Human Vaccine Institute, Duke University, Durham, NC, USA
| | - Carolyn B Coyne
- Molecular Genetics and Microbiology Department, Duke University, Durham, NC, USA; Duke Human Vaccine Institute, Duke University, Durham, NC, USA.
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Dadgar S, Mahmoudinia M, Akbari A, Zandieh E, Attaranzadeh A, Hoseinpour S, Jahanpak N, Tavanaee Sani A, Mohammadi SA. Placental infection with SARS-CoV-2, analysis of 16 cases and literature review. Arch Gynecol Obstet 2022; 305:1359-1367. [PMID: 35088195 PMCID: PMC8794612 DOI: 10.1007/s00404-021-06372-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 12/15/2021] [Indexed: 12/01/2022]
Abstract
Purpose Since December 2019, the whole world has been affected by coronavirus [severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)]. However, the effects of COVID-19 infection on pregnancy and fetal transmission are still unclear. Therefore, this study was conducted to evaluate placenta samples regarding detection of SARS-CoV-2 RNA in women affected with COVID-19.
Method This study was a part of a cohort study carried out on pregnant women with a diagnosis of COVID-19 infection who had been admitted to the Imam Reza Hospital in Mashhad, Iran, from March 20 to August 5, 2020. Clinical and laboratory information of all the patients was collected and chest computed tomography (CT) scans were reviewed. Totally, 16 placental tissue were prepared for real time polymerase chain reaction (RT-PCR) testing. All samples were tested by PowerChek PCR real-time kit (South Korea) with 2 target genes (E gene and Rd Rp gene), and Pishtaz Teb kit, (Iran) with 2 target genes (N gene and RdRp gene).
Result In the first RT-PCR kit by PowerChek kit, 6 samples were positive for a single gene (E gene) and 2 samples were positive for both genes (E gene and Rd Rp gene). In the second RT-PCR kit by Pishtaz Teb kit, 3 samples were positive for two genes (N gene and RdRp gene).
Conclusion This present study showed that infection of placenta with SARS-CoV-2 may occur in pregnancy. However, whether this infection leads to neonatal infection and serious complication in pregnancy remains unclear.
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Affiliation(s)
- Salmeh Dadgar
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Malihe Mahmoudinia
- Department of Obstetrics, Faculty of Medicines, Maternal and Neonatal Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Azam Akbari
- Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elaheh Zandieh
- Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Armin Attaranzadeh
- Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sajjad Hoseinpour
- Department of Molecular Genetic, Medical Laboratory, Imam Hosein Hospital, Mashhad, Iran
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Feyaerts D, Urbschat C, Gaudillière B, Stelzer IA. Establishment of tissue-resident immune populations in the fetus. Semin Immunopathol 2022; 44:747-766. [PMID: 35508672 PMCID: PMC9067556 DOI: 10.1007/s00281-022-00931-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/17/2022] [Indexed: 12/15/2022]
Abstract
The immune system establishes during the prenatal period from distinct waves of stem and progenitor cells and continuously adapts to the needs and challenges of early postnatal and adult life. Fetal immune development not only lays the foundation for postnatal immunity but establishes functional populations of tissue-resident immune cells that are instrumental for fetal immune responses amidst organ growth and maturation. This review aims to discuss current knowledge about the development and function of tissue-resident immune populations during fetal life, focusing on the brain, lung, and gastrointestinal tract as sites with distinct developmental trajectories. While recent progress using system-level approaches has shed light on the fetal immune landscape, further work is required to describe precise roles of prenatal immune populations and their migration and adaptation to respective organ environments. Defining points of prenatal susceptibility to environmental challenges will support the search for potential therapeutic targets to positively impact postnatal health.
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Affiliation(s)
- Dorien Feyaerts
- grid.168010.e0000000419368956Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA USA
| | - Christopher Urbschat
- grid.13648.380000 0001 2180 3484Division of Experimental Feto-Maternal Medicine, Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg, Hamburg, Germany
| | - Brice Gaudillière
- grid.168010.e0000000419368956Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA USA ,grid.168010.e0000000419368956Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA USA
| | - Ina A. Stelzer
- grid.168010.e0000000419368956Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA USA
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34
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Zhuang B, Shang J, Yao Y. HLA-G: An Important Mediator of Maternal-Fetal Immune-Tolerance. Front Immunol 2021; 12:744324. [PMID: 34777357 PMCID: PMC8586502 DOI: 10.3389/fimmu.2021.744324] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/11/2021] [Indexed: 01/17/2023] Open
Abstract
Maternal-fetal immune-tolerance occurs throughout the whole gestational trimester, thus a mother can accept a genetically distinct fetus without immunological aggressive behavior. HLA-G, one of the non-classical HLA class I molecules, is restricted-expression at extravillous trophoblast. It can concordantly interact with various kinds of receptors mounted on maternally immune cells residing in the uterus (e.g. CD4+ T cells, CD8+ T cells, natural killer cells, macrophages, and dendritic cells) for maintaining immune homeostasis of the maternal-fetus interface. HLA-G is widely regarded as the pivotal protective factor for successful pregnancies. In the past 20 years, researches associated with HLA-G have been continually published. Indeed, HLA-G plays a mysterious role in the mechanism of maternal-fetal immune-tolerance. It can also be ectopically expressed on tumor cells, infected sites and other pathologic microenvironments to confer a significant local tolerance. Understanding the characteristics of HLA-G in immunologic tolerance is not only beneficial for pathological pregnancy, but also helpful to the therapy of other immune-related diseases, such as organ transplant rejection, tumor migration, and autoimmune disease. In this review, we describe the biological properties of HLA-G, then summarize our understanding of the mechanisms of fetomaternal immunologic tolerance and the difference from transplant tolerance. Furthermore, we will discuss how HLA-G contributes to the tolerogenic microenvironment during pregnancy. Finally, we hope to find some new aspects of HLA-G in fundamental research or clinical application for the future.
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Affiliation(s)
- Baimei Zhuang
- Medical School of Chinese People's Liberation Army, Chinese People's Liberation Army General Hospital, Beijing, China.,Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Jin Shang
- Medical School of Chinese People's Liberation Army, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yuanqing Yao
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.,Department of Obstetrics and Gynecology, The First Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
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Šket T, Ramuta TŽ, Starčič Erjavec M, Kreft ME. The Role of Innate Immune System in the Human Amniotic Membrane and Human Amniotic Fluid in Protection Against Intra-Amniotic Infections and Inflammation. Front Immunol 2021; 12:735324. [PMID: 34745106 PMCID: PMC8566738 DOI: 10.3389/fimmu.2021.735324] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/23/2021] [Indexed: 01/18/2023] Open
Abstract
Intra-amniotic infection and inflammation (IAI) affect fetal development and are highly associated with preterm labor and premature rupture of membranes, which often lead to adverse neonatal outcomes. Human amniotic membrane (hAM), the inner part of the amnio-chorionic membrane, protects the embryo/fetus from environmental dangers, including microbial infection. However, weakened amnio-chorionic membrane may be breached or pathogens may enter through a different route, leading to IAI. The hAM and human amniotic fluid (hAF) respond by activation of all components of the innate immune system. This includes changes in 1) hAM structure, 2) presence of immune cells, 3) pattern recognition receptors, 4) cytokines, 5) antimicrobial peptides, 6) lipid derivatives, and 7) complement system. Herein we provide a comprehensive and integrative review of the current understanding of the innate immune response in the hAM and hAF, which will aid in design of novel studies that may lead to breakthroughs in how we perceive the IAI.
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Affiliation(s)
- Tina Šket
- Department of Synthetic Biology and Immunology, National Institute of Chemistry, Ljubljana, Slovenia
| | - Taja Železnik Ramuta
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | | | - Mateja Erdani Kreft
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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Unique Severe COVID-19 Placental Signature Independent of Severity of Clinical Maternal Symptoms. Viruses 2021; 13:v13081670. [PMID: 34452534 PMCID: PMC8402730 DOI: 10.3390/v13081670] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/19/2021] [Accepted: 08/19/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Although the risk for transplacental transmission of SARS-CoV-2 is rare, placental infections with adverse functional consequences have been reported. This study aims to analyse histological placental findings in pregnancies complicated by SARS-CoV-2 infection and investigate its correlation with clinical symptoms and perinatal outcomes. We want to determine which pregnancies are at-risk to prevent adverse pregnancy outcomes related to COVID-19 in the future. METHODS A prospective, longitudinal, multicentre, cohort study. All pregnant women presenting between April 2020 and March 2021 with a nasopharyngeal RT-PCR-confirmed SARS-CoV-2 infection were included. Around delivery, maternal, foetal and placental PCR samples were collected. Placental pathology was correlated with clinical maternal characteristics of COVID-19. RESULTS Thirty-six patients were included, 33 singleton pregnancies (n = 33, 92%) and three twin pregnancies (n = 3, 8%). Twenty-four (62%) placentas showed at least one abnormality. Four placentas (4/39, 10%) showed placental staining positive for the presence of SARS-CoV-2 accompanied by a unique combination of diffuse, severe inflammatory placental changes with massive perivillous fibrin depositions, necrosis of syncytiotrophoblast, diffuse chronic intervillositis, and a specific, unprecedented CD20+ B-cell infiltration. This SARS-CoV-2 placental signature seems to correlate with foetal distress (75% vs. 15.6%, p = 0.007) but not with the severity of maternal COVID-19 disease. CONCLUSION We describe a unique placental signature in pregnant patients with COVID-19, which has not been reported in a historical cohort. We show that the foetal environment can be seriously compromised by disruption of placental function due to local, devastating SARS-CoV-2 infection. Maternal clinical symptoms did not predict the severity of the SARS-CoV-2-related placental signature, resulting in a lack of adequate identification of maternal criteria for pregnancies at risk. Close foetal monitoring and pregnancy termination in case of foetal distress can prevent adverse pregnancy outcomes due to COVID-19 related placental disease.
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Narang K, Cheek EH, Enninga EAL, Theiler RN. Placental Immune Responses to Viruses: Molecular and Histo-Pathologic Perspectives. Int J Mol Sci 2021; 22:2921. [PMID: 33805739 PMCID: PMC7998619 DOI: 10.3390/ijms22062921] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/09/2021] [Accepted: 03/09/2021] [Indexed: 12/12/2022] Open
Abstract
As most recently demonstrated by the SARS-CoV-2 pandemic, congenital and perinatal infections are of significant concern to the pregnant population as compared to the general population. These outcomes can range from no apparent impact all the way to spontaneous abortion or fetal infection with long term developmental consequences. While some pathogens have developed mechanisms to cross the placenta and directly infect the fetus, other pathogens lead to an upregulation in maternal or placental inflammation that can indirectly cause harm. The placenta is a temporary, yet critical organ that serves multiple important functions during gestation including facilitation of fetal nutrition, oxygenation, and prevention of fetal infection in utero. Here, we review trophoblast cell immunology and the molecular mechanisms utilized to protect the fetus from infection. Lastly, we discuss consequences in the placenta when these protections fail and the histopathologic result following infection.
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Affiliation(s)
- Kavita Narang
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA;
| | - Elizabeth H. Cheek
- Department of Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA;
| | - Elizabeth Ann L. Enninga
- Departments of Immunology, Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA;
| | - Regan N. Theiler
- Division of Obstetrics, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
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