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Sánchez-Gil MA, Fraile-Martinez O, García-Montero C, De Leon-Oliva D, Boaru DL, De Castro-Martinez P, Camacho-Alcázar A, De León-Luis JA, Bravo C, Díaz-Pedrero R, López-Gonzalez L, Bujan J, Cancelo MJ, Álvarez-Mon M, García-Honduvilla N, Saez MA, Ortega MA. Exacerbated Activation of the NLRP3 Inflammasome in the Placentas from Women Who Developed Chronic Venous Disease during Pregnancy. Int J Mol Sci 2024; 25:5528. [PMID: 38791563 PMCID: PMC11122606 DOI: 10.3390/ijms25105528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024] Open
Abstract
Chronic venous disease (CVD) comprises a spectrum of morphofunctional disorders affecting the venous system, affecting approximately 1 in 3 women during gestation. Emerging evidence highlights diverse maternofetal implications stemming from CVD, particularly impacting the placenta. While systemic inflammation has been associated with pregnancy-related CVD, preliminary findings suggest a potential link between this condition and exacerbated inflammation in the placental tissue. Inflammasomes are major orchestrators of immune responses and inflammation in different organs and systems. Notwithstanding the relevance of inflammasomes, specifically the NLRP3 (nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3)- which has been demonstrated in the placentas of women with different obstetric complications, the precise involvement of this component in the placentas of women with CVD remains to be explored. This study employs immunohistochemistry and real-time PCR (RT-qPCR) to examine the gene and protein expression of key components in both canonical and non-canonical pathways of the NLRP3 inflammasome (NLRP3, ASC-apoptosis-associated speck-like protein containing a C-terminal caspase recruitment domain-caspase 1, caspase 5, caspase 8, and interleukin 1β) within the placental tissue of women affected by CVD. Our findings reveal a substantial upregulation of these components in CVD-affected placentas, indicating a potential pathophysiological role of the NLRP3 inflammasome in the development of this condition. Subsequent investigations should focus on assessing translational interventions addressing this dysregulation in affected patient populations.
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Affiliation(s)
- María Asunción Sánchez-Gil
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
- University Defense Center of Madrid (CUD), 28047 Madrid, Spain
| | - Oscar Fraile-Martinez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
| | - Cielo García-Montero
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
| | - Diego De Leon-Oliva
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
| | - Diego Liviu Boaru
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
| | - Patricia De Castro-Martinez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
| | - Adrían Camacho-Alcázar
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
| | - Juan A. De León-Luis
- Department of Obstetrics and Gynecology, University Hospital Gregorio Marañón, 28009 Madrid, Spain; (J.A.D.L.-L.); (C.B.)
- Health Research Institute Gregorio Marañón, 28009 Madrid, Spain
| | - Coral Bravo
- Department of Obstetrics and Gynecology, University Hospital Gregorio Marañón, 28009 Madrid, Spain; (J.A.D.L.-L.); (C.B.)
- Health Research Institute Gregorio Marañón, 28009 Madrid, Spain
| | - Raúl Díaz-Pedrero
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain;
| | - Laura López-Gonzalez
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
- Pathological Anatomy Service, University Hospital Gómez-Ulla, 28806 Alcala de Henares, Spain
| | - Julia Bujan
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
| | - María J. Cancelo
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain;
- Department of Obstetrics and Gynecology, University Hospital of Guadalajara, 19002 Guadalajara, Spain
| | - Melchor Álvarez-Mon
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
- Immune System Diseases-Rheumatology and Internal Medicine Service, University Hospital Prince of Asturias, Networking Research Center on for Liver and Digestive Diseases (CIBEREHD), 28806 Alcala de Henares, Spain
| | - Natalio García-Honduvilla
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
| | - Miguel A. Saez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
- Pathological Anatomy Service, University Hospital Gómez-Ulla, 28806 Alcala de Henares, Spain
| | - Miguel A. Ortega
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain; (M.A.S.-G.); (O.F.-M.); (C.G.-M.); (D.D.L.-O.); (D.L.B.); (P.D.C.-M.); (A.C.-A.); (J.B.); (M.Á.-M.); (N.G.-H.); (M.A.S.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; (R.D.-P.); (L.L.-G.)
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Chen H, Chen Y, Zheng Q. The regulated cell death at the maternal-fetal interface: beneficial or detrimental? Cell Death Discov 2024; 10:100. [PMID: 38409106 PMCID: PMC10897449 DOI: 10.1038/s41420-024-01867-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/08/2024] [Accepted: 02/14/2024] [Indexed: 02/28/2024] Open
Abstract
Regulated cell death (RCD) plays a fundamental role in placental development and tissue homeostasis. Placental development relies upon effective implantation and invasion of the maternal decidua by the trophoblast and an immune tolerant environment maintained by various cells at the maternal-fetal interface. Although cell death in the placenta can affect fetal development and even cause pregnancy-related diseases, accumulating evidence has revealed that several regulated cell death were found at the maternal-fetal interface under physiological or pathological conditions, the exact types of cell death and the precise molecular mechanisms remain elusive. In this review, we summarized the apoptosis, necroptosis and autophagy play both promoting and inhibiting roles in the differentiation, invasion of trophoblast, remodeling of the uterine spiral artery and decidualization, whereas ferroptosis and pyroptosis have adverse effects. RCD serves as a mode of communication between different cells to better maintain the maternal-fetal interface microenvironment. Maintaining the balance of RCD at the maternal-fetal interface is of utmost importance for the development of the placenta, establishment of an immune microenvironment, and prevention of pregnancy disorders. In addition, we also revealed an association between abnormal expression of key molecules in different types of RCD and pregnancy-related diseases, which may yield significant insights into the pathogenesis and treatment of pregnancy-related complications.
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Affiliation(s)
- Huan Chen
- Prenatal Diagnosis Center, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025# Shennan Road, Shenzhen, 518000, P.R. China
| | - Yin Chen
- Prenatal Diagnosis Center, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025# Shennan Road, Shenzhen, 518000, P.R. China
| | - Qingliang Zheng
- Prenatal Diagnosis Center, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025# Shennan Road, Shenzhen, 518000, P.R. China.
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3
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Chen Y, Miao C, Zhao Y, Yang L, Wang R, Shen D, Ren N, Zhang Q. Inflammasomes in human reproductive diseases. Mol Hum Reprod 2023; 29:gaad035. [PMID: 37788097 DOI: 10.1093/molehr/gaad035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 09/20/2023] [Indexed: 10/05/2023] Open
Abstract
Inflammasomes are multi-protein complexes localized within immune and non-immune cells that induce caspase activation, proinflammatory cytokine secretion, and ultimately pyroptosis-a type of cell death. Inflammasomes are involved in a variety of human diseases, especially acute or chronic inflammatory diseases. In this review, we focused on the strong correlation between the NLRP3 inflammasome and various reproductive diseases, including ovarian aging or premature ovarian insufficiency, PCOS, endometriosis, recurrent spontaneous abortion, preterm labor, pre-eclampsia, and male subfertility, as well as the multifaceted role of NLRP3 in the pathogenesis and treatment of these diseases. In addition, we provide an overview of the structure and amplification of inflammasomes. This comprehensive review demonstrates the vital role of NLRP3 inflammasome activation in human reproductive diseases together with the underlying mechanisms, offers new insights for mechanistic studies of reproduction, and provides promising possibilities for the development of drugs targeting the NLRP3 inflammasome for the treatment of reproductive disorders in the future.
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Affiliation(s)
- Yun Chen
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Chenyun Miao
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ying Zhao
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Liuqing Yang
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ruye Wang
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Dan Shen
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ning Ren
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Qin Zhang
- Department of TCM Gynecology, Hangzhou TCM Hospital affiliated to Zhejiang Chinese Medical University, Hangzhou, China
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The Innate Defense in the Zika-Infected Placenta. Pathogens 2022; 11:pathogens11121410. [PMID: 36558744 PMCID: PMC9787577 DOI: 10.3390/pathogens11121410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/25/2022] Open
Abstract
Zika virus (ZIKV) is an arthropod-borne virus that belongs to the Flaviviridae family, genus Flavivirus and was first isolated 1947 in Uganda, Africa, from the serum of a sentinel Rhesus monkey. Since its discovery, the virus was responsible for major outbreaks in several different countries, being linked to severe complications in pregnant women, neonatal birth defects and the congenital zika syndrome. Maternal-fetal transmission of ZIKV can occur in all trimesters of pregnancy, and the role of the placenta and its cells in these cases is yet to be fully understood. The decidua basalis and chorionic villi, maternal-fetal components of the placenta, contain a rich immunological infiltrate composed by Hofbauer cells, mastocytes, dendritic cells and macrophages, primary cells of the innate immune response that have a role that still needs to be better investigated in ZIKV infection. Recent studies have already described several histopathological features and the susceptibility and permissiveness of placenta cells to infection by the Zika virus. In this review, we address some of the current knowledge on the innate immune responses against ZIKV, especially in the placenta.
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Placental macrophage responses to viral and bacterial ligands and the influence of fetal sex. iScience 2022; 25:105653. [PMID: 36505933 PMCID: PMC9732417 DOI: 10.1016/j.isci.2022.105653] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/09/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022] Open
Abstract
Bacterial and viral infections of the placenta are associated with inflammation and adverse pregnancy outcomes. Hofbauer cells (HBCs) are fetal-origin macrophages in the placenta, proposed to protect the fetus from vertical pathogen transmission. We performed quantitative proteomics on term HBCs under resting conditions and following exposure to bacterial and viral pathogen-associated molecular patterns (PAMPs), and investigated the contribution of fetal sex. Resting HBCs expressed proteins pertinent to macrophage function, including chemokines, cytokines, Toll-like receptors, and major histocompatibility complex class I and II molecules. HBCs mounted divergent responses to bacterial versus viral PAMPs but exhibited protein expression changes suggestive of a more pro-inflammatory phenotype. A comparison between male and female HBCs showed that the latter mounted a stronger and wider response. Here, we provide a comprehensive understanding of the sex-dependent responses of placental macrophages to infectious triggers, which were primarily associated with lipid metabolism in males and cytoskeleton organization in females.
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Maternal Serum Gasdermin D Concentrations in Pregnancies Complicated
by Isolated Intrauterine Growth Restriction. Z Geburtshilfe Neonatol 2022. [DOI: 10.1055/a-1967-2274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Objective We aimed to investigate the relationship between the isolated
intrauterine growth restriction (IUGR) and maternal serum gasdermin D (GSDMD)
concentration.
Materials and methods This cross-sectional study was conducted with 80
pregnant women who applied to the Umraniye Training and Research Hospital
Gynecology and Obstetrics Clinic between January 2022 and May 2022. The IUGR
group consisted of 40 pregnant women diagnosed with IUGR in the third trimester,
and the control group consisted of 40 healthy pregnant women matched with the
IUGR group in terms of age and BMI. Demographic characteristics, ultrasound
findings, and neonatal outcomes were noted. The two groups were compared in
terms of maternal serum GSDMD concentrations.
Results Both groups were similar in terms of demographic characteristics.
Fetal biometric measurements were found to be significantly lower in the IUGR
group compared to the control group, and umbilical artery Doppler PI and SD were
found to be higher. Gestational age, newborn birth weight, birth height, and
Apgar scores were significantly lower and NICU admission rate was higher in the
IUGR group. Gestational age at blood sampling for GSDMD was similar in both
groups (p=0.805). While maternal serum GSDMD concentration was
11.14 ng/ml in the IUGR group, it was 6.66 ng/ml
in the control group (p=0.000). ROC analysis was performed to determine
the value of GSDMD concentration in terms of IUGR estimation. AUC analysis of
GSDMD for IUGR estimation was 0.88 (p<.001, 95%
CI=0.80–0.95). The optimal cutoff value for GSDMD concentration
was determined as 8.84 ng/ml with 80% sensitivity and
75% specificity.
Conclusion Maternal serum GSDMD concentrations were found to be higher in
pregnant women whose pregnancy was complicated by isolated IUGR. We think that
high GSDMD concentrations may be a reflection of increased GSDMD-mediated
pyroptosis in placental tissue in isolated IUGR cases.
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Fakonti G, Pantazi P, Bokun V, Holder B. Placental Macrophage (Hofbauer Cell) Responses to Infection During Pregnancy: A Systematic Scoping Review. Front Immunol 2022; 12:756035. [PMID: 35250964 PMCID: PMC8895398 DOI: 10.3389/fimmu.2021.756035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/30/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Congenital infection of the fetus via trans-placental passage of pathogens can result in severe morbidity and mortality. Even without transmission to the fetus, infection of the placenta itself is associated with pregnancy complications including pregnancy loss and preterm birth. Placental macrophages, also termed Hofbauer cells (HBCs), are fetal-origin macrophages residing in the placenta that are likely involved in responding to placental infection and protection of the developing fetus. As HBCs are the only immune cell present in the villous placenta, they represent one of the final opportunities for control of infection and prevention of passage to the developing fetus. OBJECTIVE AND RATIONALE The objective of this review was to provide a systematic overview of the literature regarding HBC responses during infection in pregnancy, including responses to viral, bacterial, and parasitic pathogens. METHODS PubMed and Scopus were searched on May 20th, 2021, with no limit on publication date, to identify all papers that have studied placental macrophages/Hofbauer cells in the context of infection. The following search strategy was utilized: (hofbauer* OR "hofbauer cells" OR "hofbauer cell" OR "placental macrophage" OR "placental macrophages") AND [infect* OR virus OR viral OR bacteri* OR parasite* OR pathogen* OR LPS OR "poly(i:c)" OR toxoplasm* OR microb* OR HIV)]. OUTCOMES 86 studies were identified for review. This included those that investigated HBCs in placentas from pregnancies complicated by maternal infection and in vitro studies investigating HBC responses to pathogens or Pathogen-Associated Molecular Patterns (PAMPs). HBCs can be infected by a variety of pathogens, and HBC hyperplasia was a common observation. HBCs respond to pathogen infection and PAMPs by altering their transcriptional, translational and secretion profiles. Co-culture investigations demonstrate that they can replicate and transmit pathogens to other cells. In other cases, they may eliminate the pathogen through a variety of mechanisms including phagocytosis, cytokine-mediated pathogen elimination, release of macrophage extracellular traps and HBC-antibody-mediated neutralization. HBC responses differ across gestation and may be influenced by pre-existing immunity. Clinical information, including gestational age at infection, gestational age of the samples, mode of sample collection and pregnancy outcome were missing for the majority of studies.
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Affiliation(s)
| | | | | | - Beth Holder
- Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
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Lee S, Shin J, Kim JS, Shin J, Lee SK, Park HW. Targeting TBK1 Attenuates LPS-Induced NLRP3 Inflammasome Activation by Regulating of mTORC1 Pathways in Trophoblasts. Front Immunol 2021; 12:743700. [PMID: 34858401 PMCID: PMC8630692 DOI: 10.3389/fimmu.2021.743700] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/22/2021] [Indexed: 01/28/2023] Open
Abstract
Pathological maternal inflammation and abnormal placentation contribute to several pregnancy-related disorders, including preterm birth, intrauterine growth restriction, and preeclampsia. TANK-binding kinase 1 (TBK1), a serine/threonine kinase, has been implicated in the regulation of various physiological processes, including innate immune response, autophagy, and cell growth. However, the relevance of TBK1 in the placental pro-inflammatory environment has not been investigated. In this study, we assessed the effect of TBK1 inhibition on lipopolysaccharide (LPS)-induced NLRP3 inflammasome activation and its underlying mechanisms in human trophoblast cell lines and mouse placenta. TBK1 phosphorylation was upregulated in the trophoblasts and placenta in response to LPS. Pharmacological and genetic inhibition of TBK1 in trophoblasts ameliorated LPS-induced NLRP3 inflammasome activation, placental inflammation, and subsequent interleukin (IL)-1 production. Moreover, maternal administration of amlexanox, a TBK1 inhibitor, reversed LPS-induced adverse pregnancy outcomes. Notably, TBK1 inhibition prevented LPS-induced NLRP3 inflammasome activation by targeting the mammalian target of rapamycin complex 1 (mTORC1). Thus, this study provides evidence for the biological significance of TBK1 in placental inflammation, suggesting that amlexanox may be a potential therapeutic candidate for treating inflammation-associated pregnancy-related complications.
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Affiliation(s)
- Sohee Lee
- Department of Cell Biology, Konyang University College of Medicine, Daejeon, South Korea
| | - Jiha Shin
- Department of Cell Biology, Konyang University College of Medicine, Daejeon, South Korea
| | - Jong-Seok Kim
- Myunggok Medical Research Institute, Konyang University College of Medicine, Daejeon, South Korea
| | - Jongdae Shin
- Department of Cell Biology, Konyang University College of Medicine, Daejeon, South Korea.,Myunggok Medical Research Institute, Konyang University College of Medicine, Daejeon, South Korea
| | - Sung Ki Lee
- Myunggok Medical Research Institute, Konyang University College of Medicine, Daejeon, South Korea.,Department of Obstetrics and Gynecology, Konyang University Hospital, Daejeon, South Korea
| | - Hwan-Woo Park
- Department of Cell Biology, Konyang University College of Medicine, Daejeon, South Korea
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Sagrillo-Fagundes L, Casagrande Paim T, Pretto L, Bertaco I, Zanatelli C, Vaillancourt C, Wink MR. The implications of the purinergic signaling throughout pregnancy. J Cell Physiol 2021; 237:507-522. [PMID: 34596240 DOI: 10.1002/jcp.30594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/26/2021] [Accepted: 09/14/2021] [Indexed: 12/14/2022]
Abstract
Purinergic signaling is a necessary mechanism to trigger or even amplify cell communication. Its ligands, notably adenosine triphosphate (ATP) and adenosine, modulate specific membrane-bound receptors in virtually all human cells. Regardless of the stage of the pregnancy, cellular communication between maternal, placental, and fetal cells is the paramount mechanism to sustain its optimal status. In this review, we describe the crucial role of purinergic signaling on the regulation of the maternal-fetal trophic exchanges, immune control, and endocrine exchanges throughout pregnancy. The nature of the modulation of both ATP and adenosine on the embryo-maternal interface, going through placental invasion until birth delivery depends on the general maternal-fetal health state and consequently on the selective activation of their specific receptors. In addition, an increasing number of studies have been demonstrating the pivotal role of ATP and adenosine in modulating deleterious effects of suboptimal conditions of pregnancy. Here, we discuss the role of purinergic signaling on the balance that coordinates the embryo-maternal exchanges and a promising therapeutic venue in the context of pregnancy disorders.
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Affiliation(s)
- Lucas Sagrillo-Fagundes
- Departamento de Ciências Básicas da Saúde e Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Thaís Casagrande Paim
- Departamento de Ciências Básicas da Saúde e Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Luiza Pretto
- Departamento de Ciências Básicas da Saúde e Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Isadora Bertaco
- Departamento de Ciências Básicas da Saúde e Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Carla Zanatelli
- Departamento de Ciências Básicas da Saúde e Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Cathy Vaillancourt
- Centre Armand Frappier Santé Biotechnologie, INRS, Laval, Quebec, Canada
| | - Márcia R Wink
- Departamento de Ciências Básicas da Saúde e Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
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Hofbauer Cells Spread Listeria monocytogenes among Placental Cells and Undergo Pro-Inflammatory Reprogramming while Retaining Production of Tolerogenic Factors. mBio 2021; 12:e0184921. [PMID: 34399615 PMCID: PMC8406333 DOI: 10.1128/mbio.01849-21] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Pregnant women are highly susceptible to infection by the bacterial pathogen Listeria monocytogenes, leading to miscarriage, premature birth, and neonatal infection. L. monocytogenes is thought to breach the placental barrier by infecting trophoblasts at the maternal/fetal interface. However, the fate of L. monocytogenes within chorionic villi and how infection reaches the fetus are unsettled. Hofbauer cells (HBCs) are fetal placental macrophages and the only leukocytes residing in healthy chorionic villi, forming a last immune barrier protecting fetal blood from infection. Little is known about the HBCs’ antimicrobial responses to pathogens. Here, we studied L. monocytogenes interaction with human primary HBCs. Remarkably, despite their M2 anti-inflammatory phenotype at basal state, HBCs phagocytose and kill non-pathogenic bacteria like Listeria innocua and display low susceptibility to infection by L. monocytogenes. However, L. monocytogenes can exploit HBCs to spread to surrounding placental cells. Transcriptomic analyses by RNA sequencing revealed that HBCs undergo pro-inflammatory reprogramming upon L. monocytogenes infection, similarly to macrophages stimulated by the potent M1-polarizing agents lipopolysaccharide (LPS)/interferon gamma (IFN-γ). Infected HBCs also express pro-inflammatory chemokines known to promote placental infiltration by maternal leukocytes. However, HBCs maintain the expression of a collection of tolerogenic genes and secretion of tolerogenic cytokines, consistent with their tissue homeostatic role in prevention of fetal rejection. In conclusion, we propose a previously unrecognized model in which HBCs promote the spreading of L. monocytogenes among placental cells and transition to a pro-inflammatory state likely to favor innate immune responses, while maintaining the expression of tolerogenic factors known to prevent maternal anti-fetal adaptive immunity.
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