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Park S, Hunter ES. Modeling the human placenta: in vitro applications in developmental and reproductive toxicology. Crit Rev Toxicol 2024; 54:431-464. [PMID: 39016688 DOI: 10.1080/10408444.2023.2295349] [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: 07/31/2023] [Revised: 11/20/2023] [Accepted: 12/07/2023] [Indexed: 07/18/2024]
Abstract
During its temporary tenure, the placenta has extensive and specialized functions that are critical for pre- and post-natal development. The consequences of chemical exposure in utero can have profound effects on the structure and function of pregnancy-associated tissues and the life-long health of the birthing person and their offspring. However, the toxicological importance and critical functions of the placenta to embryonic and fetal development and maturation have been understudied. This narrative will review early placental development in humans and highlight some in vitro models currently in use that are or can be applied to better understand placental processes underlying developmental toxicity due to in utero environmental exposures.
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Affiliation(s)
- Sarah Park
- Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
- Center for Computational Toxicology and Exposure, ORD, US EPA, Research Triangle Park, NC, USA
| | - Edward Sidney Hunter
- Center for Computational Toxicology and Exposure, ORD, US EPA, Research Triangle Park, NC, USA
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2
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Gong X, He W, Jin W, Ma H, Wang G, Li J, Xiao Y, Zhao Y, Chen Q, Guo H, Yang J, Qi Y, Dong W, Fu M, Li X, Liu J, Liu X, Yin A, Zhang Y, Wei Y. Disruption of maternal vascular remodeling by a fetal endoretrovirus-derived gene in preeclampsia. Genome Biol 2024; 25:117. [PMID: 38715110 PMCID: PMC11075363 DOI: 10.1186/s13059-024-03265-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 04/30/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Preeclampsia, one of the most lethal pregnancy-related diseases, is associated with the disruption of uterine spiral artery remodeling during placentation. However, the early molecular events leading to preeclampsia remain unknown. RESULTS By analyzing placentas from preeclampsia, non-preeclampsia, and twin pregnancies with selective intrauterine growth restriction, we show that the pathogenesis of preeclampsia is attributed to immature trophoblast and maldeveloped endothelial cells. Delayed epigenetic reprogramming during early extraembryonic tissue development leads to generation of excessive immature trophoblast cells. We find reduction of de novo DNA methylation in these trophoblast cells results in selective overexpression of maternally imprinted genes, including the endoretrovirus-derived gene PEG10 (paternally expressed gene 10). PEG10 forms virus-like particles, which are transferred from the trophoblast to the closely proximate endothelial cells. In normal pregnancy, only a low amount of PEG10 is transferred to maternal cells; however, in preeclampsia, excessive PEG10 disrupts maternal vascular development by inhibiting TGF-beta signaling. CONCLUSIONS Our study reveals the intricate epigenetic mechanisms that regulate trans-generational genetic conflict and ultimately ensure proper maternal-fetal interface formation.
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Affiliation(s)
- Xiaoli Gong
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Wei He
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Wan Jin
- Euler Technology, Beijing, China
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hongwei Ma
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China
- Department Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Gang Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
- Human Genetic Resources Preservation Center of Hubei Province, Wuhan, China
- Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jiaxin Li
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
- Human Genetic Resources Preservation Center of Hubei Province, Wuhan, China
- Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yangyu Zhao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | | | | | - Jiexia Yang
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Yiming Qi
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Wei Dong
- Maternity Ward, Haidian Maternal and Child Health Hospital, Beijing, China
| | - Meng Fu
- Department of Obstetrics and Gynecology, Haidian Maternal and Child Health Hospital, Beijing, China
| | - Xiaojuan Li
- Euler Technology, Beijing, China
- Present Address: International Max Planck Research School for Genome Science, and University of Göttingen, Göttingen Center for Molecular Biosciences, Göttingen, Germany
| | | | - Xinghui Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China.
- Department Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China.
| | - Aihua Yin
- Medical Genetic Center, Guangdong Women and Children Hospital, Guangzhou, China.
| | - Yi Zhang
- Euler Technology, Beijing, China.
| | - Yuan Wei
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.
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3
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Thompson LP, Song H, Hartnett J. Nicotinamide Riboside, an NAD + Precursor, Protects Against Cardiac Mitochondrial Dysfunction in Fetal Guinea Pigs Exposed to Gestational Hypoxia. Reprod Sci 2024; 31:975-986. [PMID: 37957471 PMCID: PMC10959782 DOI: 10.1007/s43032-023-01387-6] [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: 06/09/2023] [Accepted: 10/18/2023] [Indexed: 11/15/2023]
Abstract
Gestational hypoxia inhibits mitochondrial function in the fetal heart and placenta contributing to fetal growth restriction and organ dysfunction. NAD + deficiency may contribute to a metabolic deficit by inhibiting oxidative phosphorylation and ATP synthesis. We tested the effects of nicotinamide riboside (NR), an NAD + precursor, as a treatment for reversing known mitochondrial dysfunction in hypoxic fetal hearts. Pregnant guinea pigs were housed in room air (normoxia) or placed in a hypoxic chamber (10.5%O2) for the last 14 days of gestation (term = 65 days) and administered either water or NR (1.6 mg/ml) in the drinking bottle. Fetuses were excised at term, and NAD + levels of maternal liver, placenta, and fetal heart ventricles were measured. Indices of mitochondrial function (complex IV activity, sirtuin 3 activity, protein acetylation) and ATP synthesis were measured in fetal heart ventricles of NR-treated/untreated normoxic and hypoxic animals. Hypoxia reduced fetal body weight in both sexes (p = 0.01), which was prevented by NR. Hypoxia had no effect on maternal liver NAD + levels but decreased (p = 0.04) placenta NAD + levels, the latter normalized with NR treatment. Hypoxia had no effect on fetal heart NAD + but decreased (p < 0.05) mitochondrial complex IV and sirtuin 3 activities, ATP content, and increased mitochondrial acetylation, which were all normalized with maternal NR. Hypoxia increased (p < 0.05) mitochondrial acetylation in female fetal hearts but had no effect on other mitochondrial indices. We conclude that maternal NR is an effective treatment for normalizing mitochondrial dysfunction and ATP synthesis in the hypoxic fetal heart.
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Affiliation(s)
- Loren P Thompson
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, School of Medicine, 655 W. Baltimore St., Baltimore, MD, 21201, USA.
| | - Hong Song
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, School of Medicine, 655 W. Baltimore St., Baltimore, MD, 21201, USA
| | - Jamie Hartnett
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, School of Medicine, 655 W. Baltimore St., Baltimore, MD, 21201, USA
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Clemente L, Bird IM. The epidermal growth factor receptor in healthy pregnancy and preeclampsia. J Mol Endocrinol 2023; 70:e220105. [PMID: 36197759 PMCID: PMC9742168 DOI: 10.1530/jme-22-0105] [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: 09/28/2022] [Accepted: 10/05/2022] [Indexed: 11/09/2022]
Abstract
The epidermal growth factor receptor (EGFR) is expressed robustly in the placenta, and critical processes of pregnancy such as placental growth and trophoblast fusion are dependent on EGFR function. However, the role that aberrant EGFR signaling might play in the etiology and/or maintenance of preeclampsia (PE) remains largely unexplored. Recently, we have shown that overexpression of EGFR in cultured uterine artery endothelial cells (UAEC), which express little endogenous EGFR, remaps responsiveness away from vascular endothelial growth factor receptor (VEGFR) signaling and toward EGFR, suggesting that endothelial EGFR expression may be kept low to preserve VEGFR control of angiogenesis. Here we will consider the evidence for the possibility that the endothelial dysfunction observed in PE might in some cases result from elevation of endothelial EGFR. During pregnancy, trophoblasts are known to synthesize large amounts of EGFR protein, and the placenta regularly releases syncytiotrophoblast-derived exosomes and microparticles into the maternal circulation. Although there are no reports of elevated EGFR gene expression in preeclamptic endothelial cells, the ongoing shedding of placental vesicles into the vascular system raises the possibility that EGFR-rich vesicles might fuse with endothelium, thereby contributing to the symptoms of PE by interrupting angiogenesis and blocking pregnancy-adapted vasodilatory function.
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Affiliation(s)
- Luca Clemente
- Perinatal Research Laboratories, Department of Obstetrics and Gynecology, University of Wisconsin, School of Medicine and Public Health, Madison, WI, 53715, USA
| | - Ian M. Bird
- Perinatal Research Laboratories, Department of Obstetrics and Gynecology, University of Wisconsin, School of Medicine and Public Health, Madison, WI, 53715, USA
- Department of Pediatrics, University of Wisconsin, School of Medicine and Public Health, Madison, WI, 53715, USA
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Karahoda R, Zaugg J, Fuenzalida B, Kallol S, Moser-Haessig R, Staud F, Albrecht C. Trophoblast Differentiation Affects Crucial Nutritive Functions of Placental Membrane Transporters. Front Cell Dev Biol 2022; 10:820286. [PMID: 35273963 PMCID: PMC8901483 DOI: 10.3389/fcell.2022.820286] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/25/2022] [Indexed: 12/17/2022] Open
Abstract
Cytotrophoblasts are progenitor cells that proliferate and fuse to form the multinucleated syncytiotrophoblast layer, implicated in placental endocrine and transport functions. While membrane transporters play a critical role in the distribution of nutrients, hormones, and xenobiotics at the maternal-fetal interface, their selectivity to the syncytiotrophoblast layer is poorly characterized. We aimed to evaluate the regulation of placental transporters in response to trophoblast differentiation in vitro. Experiments were carried out in isolated primary human trophoblast cells before and after syncytialization. Gene expression of six molecular markers and thirty membrane transporters was investigated by qPCR analysis. Subsequently, functional expression was evaluated for proteins involved in the transplacental transfer of essential nutrients i.e., cholesterol (ABCA1, ABCG1), glucose (SLC2A1), leucine (SLC3A2, SLC7A5), and iron (transferrin receptor, TfR1). We identified that human chorionic gonadotropin, placental lactogen, endoglin, and cadherin-11 serve as optimal gene markers for the syncytialization process. We showed that trophoblast differentiation was associated with differential gene expression (mostly up-regulation) of several nutrient and drug transporters. Further, we revealed enhanced protein expression and activity of ABCG1, SLC3A2, SLC7A5, and TfR1 in syncytialized cells, with ABCA1 and GLUT1 displaying no change. Taken together, these results indicate that the syncytiotrophoblast has a dominant role in transporting essential nutrients cholesterol, leucine, and iron. Nonetheless, we present evidence that the cytotrophoblast cells may also be linked to transport functions that could be critical for the cell fusion processes. Our findings collectively yield new insights into the cellular functions associated with or altered by the trophoblast fusion. Importantly, defective syncytialization could lead to nutrient transfer imbalance, ultimately compromising fetal development and programming.
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Affiliation(s)
- Rona Karahoda
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Jonas Zaugg
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland.,Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Bern, Switzerland
| | - Barbara Fuenzalida
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - Sampada Kallol
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland.,Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Bern, Switzerland
| | | | - Frantisek Staud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Christiane Albrecht
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland.,Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Bern, Switzerland
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Feist H, Bajwa S, Pecks U. Hypertensive disease, preterm birth, fetal growth restriction and chronic inflammatory disorders of the placenta: experiences in a single institution with a standardized protocol of investigation. Arch Gynecol Obstet 2021; 306:337-347. [PMID: 34693459 DOI: 10.1007/s00404-021-06293-3] [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: 05/09/2021] [Accepted: 10/13/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Chronic inflammatory disorders of the placenta, in particular villitis of unknown etiology (VUE), chronic deciduitis (CD), chronic chorioamnionitis (CC), chronic histiocytic intervillositis (CHI), and eosinophilic/T-cell chorionic vasculitis (ETCV) can exclusively be diagnosed histologically. Using a standardized procedure for submission and pathological-anatomical examination of placentas in a single perinatal care center, we analyzed the association of chronic placental lesions to perinatal complications. METHODS We reviewed all singleton placentas and miscarriages that were examined histologically over a period of ten years after having implemented a standardized protocol for placental submission in our hospital. Cases with chronic inflammatory lesions were identified, and clinical data were analyzed and compared with a focus on preterm birth, hypertensive disorders, and fetal growth restriction and/or fetal demise. RESULTS In 174 placentas, at least one of the chronic inflammatory entities was diagnosed. CD was the most frequent disorder (n = 95), and had strong associations with preterm birth (47.3% of all cases with CD) and intrauterine fetal demise. VUE (n = 74) was exclusively diagnosed in the third trimester. This disorder was associated with a birth weight below the 10th percentile (45% of the cases) and hypertensive disease in pregnancy. Miscarriage and intrauterine fetal demise were associated with CHI (in 66.7% of cases, n = 18). CONCLUSIONS Chronic inflammatory disorders are frequently observed and contribute to major obstetric and perinatal complications. Further studies are needed to get a better picture of the connection between adverse obstetric outcomes and chronic inflammation to aid in the better counseling of patients.
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Affiliation(s)
- Henning Feist
- Department of Pathology, Diakonissenkrankenhaus Flensburg, Knuthstraße 1, 24939, Flensburg, Germany.
| | - Simin Bajwa
- Department of Obstetrics and Gynecology, Diakonissenkrankenhaus Flensburg, Flensburg, Germany
| | - Ulrich Pecks
- Department of Obstetrics and Gynecology, University Hospital of Schleswig-Holstein, Kiel, Germany
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Procoagulant Extracellular Vesicles Alter Trophoblast Differentiation in Mice by a Thrombo-Inflammatory Mechanism. Int J Mol Sci 2021; 22:ijms22189873. [PMID: 34576036 PMCID: PMC8466022 DOI: 10.3390/ijms22189873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022] Open
Abstract
Procoagulant extracellular vesicles (EV) and platelet activation have been associated with gestational vascular complications. EV-induced platelet-mediated placental inflammasome activation has been shown to cause preeclampsia-like symptoms in mice. However, the effect of EV-mediated placental thrombo-inflammation on trophoblast differentiation remains unknown. Here, we identify that the EV-induced thrombo-inflammatory pathway modulates trophoblast morphology and differentiation. EVs and platelets reduce syncytiotrophoblast differentiation while increasing giant trophoblast and spongiotrophoblast including the glycogen-rich cells. These effects are platelet-dependent and mediated by the NLRP3 inflammasome. In humans, inflammasome activation was negatively correlated with trophoblast differentiation marker GCM1 and positively correlated with blood pressure. These data identify a crucial role of EV-induced placental thrombo-inflammation on altering trophoblast differentiation and suggest platelet activation or inflammasome activation as a therapeutic target in order to achieve successful placentation.
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Kupper N, Pritz E, Siwetz M, Guettler J, Huppertz B. Placental Villous Explant Culture 2.0: Flow Culture Allows Studies Closer to the In Vivo Situation. Int J Mol Sci 2021; 22:ijms22147464. [PMID: 34299084 PMCID: PMC8308011 DOI: 10.3390/ijms22147464] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/09/2021] [Indexed: 01/15/2023] Open
Abstract
During pregnancy, freely floating placental villi are adapted to fluid shear stress due to placental perfusion with maternal plasma and blood. In vitro culture of placental villous explants is widely performed under static conditions, hoping the conditions may represent the in utero environment. However, static placental villous explant culture dramatically differs from the in vivo situation. Thus, we established a flow culture system for placental villous explants and compared commonly used static cultured tissue to flow cultured tissue using transmission and scanning electron microscopy, immunohistochemistry, and lactate dehydrogenase (LDH) and human chorionic gonadotropin (hCG) measurements. The data revealed a better structural and biochemical integrity of flow cultured tissue compared to static cultured tissue. Thus, this new flow system can be used to simulate the blood flow from the mother to the placenta and back in the most native-like in vitro system so far and thus can enable novel study designs.
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Side-Population Trophoblasts Exhibit the Differentiation Potential of a Trophoblast Stem Cell Population, Persist to Term, and are Reduced in Fetal Growth Restriction. Stem Cell Rev Rep 2021; 16:764-775. [PMID: 32548656 DOI: 10.1007/s12015-020-09991-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Fetal growth restriction often results from poor placental function and is a major cause of stillbirth. Clinically, fetal growth restriction is difficult to diagnose and currently has no effective treatment. Trophoblasts are unique placental cells that form the feto-maternal interface and facilitate nutrient and gas exchange. Fetal growth restriction is linked to inadequate trophoblast function. However, our understanding of the mechanisms underlying this dysfunction are poor, in part because of our inability to isolate and study the trophoblast stem cells from which mature trophoblasts arise in pathologic pregnancies. METHODS Cells isolated from first-trimester placentae using the Hoechst side-population technique were propagated or differentiated into mature trophoblasts. Side-population trophoblasts were isolated from normal third-trimester and growth restricted placentae using the same technique. First and third-trimester side-population trophoblasts were compared by microarray analysis. RESULTS First-trimester side-population trophoblasts could be propagated in an undifferentiated state or differentiated, via intermediate cytotrophoblasts, into syncytiotrophoblast or extravillous trophoblasts. Using the same technique, side-population trophoblasts could be isolated from term placentae for the first time, demonstrating that while they were present at consistent levels throughout gestation (~3·5%), side-population trophoblasts were significantly depleted in growth restricted pregnancies (0·32%). CONCLUSIONS Our novel method of isolating a population of human trophoblast stem cell-like cells directly from human placental tissue throughout gestation provides the first insights into trophoblast dysfunction in pregnancy pathologies. The depletion of side-population trophoblasts in growth restricted placentae may contribute to poor placental function.
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Kupper N, Huppertz B. The endogenous exposome of the pregnant mother: Placental extracellular vesicles and their effect on the maternal system. Mol Aspects Med 2021; 87:100955. [PMID: 33612320 DOI: 10.1016/j.mam.2021.100955] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/28/2021] [Accepted: 02/08/2021] [Indexed: 12/11/2022]
Abstract
During pregnancy, there is an intense crosstalk between mother and placenta. During the entire time of pregnancy, the maternal system deals with a huge amount of foreign (fetal) material released from the placenta, which can be referred to as placental exposome. Besides the release of hormones and growth factors, the placenta releases a variety of extracellular vesicles into maternal blood. These vesicles contain specific molecules including proteins, lipids, DNA as well as miRNA, all of which may have specific sites and modes of action on maternal cells. During normal pregnancy, the fine-tuning of factors and vesicles helps maintaining a viable and healthy pregnancy. However, in pregnancy pathologies such as preeclampsia, quantity and quality of the placenta-derived vesicles are altered leading to a deleterious effect on the maternal vascular system. This review focuses on the different types of placenta-derived extracellular vesicles in pregnancy with special emphasis on the interplay between these placental vesicles and the maternal system. Additionally, it displays new techniques and ideas for the analysis of the placental exposome with placental extracellular vesicles as a key aspect.
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Affiliation(s)
- Nadja Kupper
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Berthold Huppertz
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria.
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Wang R, Huang X, Ma C, Zhang H. Toxicological Effects of BPDE on Dysfunctions of Female Trophoblast Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1300:151-160. [PMID: 33523433 DOI: 10.1007/978-981-33-4187-6_7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widely spread persistent environmental toxicants. Its typical representative benzo[a]pyrene (BaP) is a human carcinogen. BaP can pass through the placental barrier and is finally metabolized into benzo[a]pyren-7, 8-dihydrodiol-9, 10-epoxide (BPDE). BPDE can form DNA adducts, which directly affect the female reproductive health. Based on the special physiological functions of trophoblast cells and its important effect on normal pregnancy, this chapter describes the toxicity and molecular mechanism of BPDE-induced dysfunctions of trophoblast cells. By affecting the invasion, migration, apoptosis, proliferation, inflammation, and hormone secretion of trophoblast cells, BPDE causes diseases such as choriocarcinoma, intrauterine growth restriction, eclampsia, and abortion. In the end, it is expected to provide a scientific basis and prevention approach for women's reproductive health and decision-making basis for the formulation of environmental health standards.
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Affiliation(s)
- Rong Wang
- Key Laboratory of Environment and Female Reproductive Health, West China School of Public Health, Sichuan University, Chengdu, China
| | - Xinying Huang
- Key Laboratory of Environment and Female Reproductive Health, West China School of Public Health, Sichuan University, Chengdu, China
| | - Chenglong Ma
- Key Laboratory of Environment and Female Reproductive Health, West China School of Public Health, Sichuan University, Chengdu, China
| | - Huidong Zhang
- Key Laboratory of Environment and Female Reproductive Health, West China School of Public Health, Sichuan University, Chengdu, China.
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Ayala-Ramírez P, Serrano N, Barrera V, Bejarano JP, Silva JL, Martínez R, Gil F, Olaya-C M, García-Robles R. Risk factors and fetal outcomes for preeclampsia in a Colombian cohort. Heliyon 2020; 6:e05079. [PMID: 33015399 PMCID: PMC7522495 DOI: 10.1016/j.heliyon.2020.e05079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/23/2020] [Accepted: 09/23/2020] [Indexed: 01/12/2023] Open
Abstract
In Latin America and the Caribbean, hypertensive pregnancy disorders are responsible for almost 26% of all maternal deaths [1] and, in Colombia, they account for 59% of all severe maternal morbidity (SMM) cases, and 59.7% of all SMM cases in adolescents [2]. One of the most important hypertensive pregnancy disorders is preeclampsia (PE). Lives can be saved, if PE is prevented, or detected early and properly managed. Prevention and detection depend on identifying the risk factors associated with PE, and, as these have been shown vary by population, they should be determined on a population-by-population basis. The following study utilized the nested case-control model to evaluate 45 potential PE risk factors of a cohort in Bogotá, Colombia, making it perhaps the most comprehensive study of its kind in Colombia. It found PE to have a statistically significant association with 7 of the 45 factors evaluated: 1) pre-gestational BMI >30 kg/m2, 2) pregnancy weight gain >12 kg, 3) previous history preeclampsia/eclampsia, 4) previous history of IUGR-SGA (Intrauterine Growth Restriction-Small for Gestational Age), 5) maternal age <20 or ≥35 years (20–34 was not associated), and 6) family history of diabetes. Finally, prenatal consumption of folic acid was found to lower the risk of PE. We recommend that, in Colombia, factors 1–6 be used to identify at risk mothers during pregnancy check-ups; that mothers be encouraged to take folic acid during pregnancy; and, that Colombia's health system and public policy address the problem of pregestational obesity.
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Affiliation(s)
- Paola Ayala-Ramírez
- Human Genetics Institute, Faculty of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
- Corresponding author.
| | - Natalia Serrano
- Research Seedbed in Perinatal Medicine Pontificia Universidad Javeriana: Medical School Pontificia Universidad Javeriana and Medical Residents Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Viviana Barrera
- Research Seedbed in Perinatal Medicine Pontificia Universidad Javeriana: Medical School Pontificia Universidad Javeriana and Medical Residents Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Juan Pablo Bejarano
- Research Seedbed in Perinatal Medicine Pontificia Universidad Javeriana: Medical School Pontificia Universidad Javeriana and Medical Residents Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Jaime Luis Silva
- Department of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Rodolfo Martínez
- Department of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Fabian Gil
- Clinical Epidemiology and Biostatistics Department, Medical School, Pontificia Universidad Javeriana, Bogota, Colombia
| | - Mercedes Olaya-C
- Department of Pathology, Faculty of Medicine, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Reggie García-Robles
- Department of Physiological Sciences, Faculty of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
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You X, Cui H, Yu N, Li Q. Knockdown of DDX46 inhibits trophoblast cell proliferation and migration through the PI3K/Akt/mTOR signaling pathway in preeclampsia. Open Life Sci 2020; 15:400-408. [PMID: 33817228 PMCID: PMC7874595 DOI: 10.1515/biol-2020-0043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/02/2020] [Accepted: 05/03/2020] [Indexed: 12/22/2022] Open
Abstract
Preeclampsia (PE) is a serious disease during pregnancy associated with the dysfunction of trophoblast cell invasion. DDX46 is a kind of RNA helicase that has been found to regulate cancer cell metastasis. However, the role of DDX46 in PE remains unclear. Our results showed that the mRNA levels of DDX46 in placental tissues of pregnant women with PE were markedly lower than those in normal pregnancies. Loss-of-function assays showed that knockdown of DDX46 significantly suppressed cell proliferation of trophoblast cells. Besides, DDX46 knockdown decreased trophoblast cell migration and invasion capacity. In contrast, the overexpression of DDX46 promoted the migration and invasion of trophoblast cells. Furthermore, knockdown of DDX46 caused significant decrease in the levels of p-PI3K, p-Akt, and p-mTOR in HTR-8/SVneo cells. In addition, treatment with IGF-1 reversed the inhibitory effects of DDX46 knockdown on proliferation, migration, and invasion of HTR-8/SVneo cells. In conclusion, these data suggest that DDX46 might be involved in the progression of PE, which might be attributed to the regulation of PI3K/Akt/mTOR signaling pathway. Thus, DDX46 might serve as a therapeutic target for the treatment of PE.
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Affiliation(s)
- Xin You
- Department of Obstetrics, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300052, China
| | - Hongyan Cui
- Department of Obstetrics, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300052, China
| | - Ning Yu
- Department of Obstetrics, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300052, China
| | - Qiuli Li
- Department of Laboratory, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300052, China
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14
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Le HT, Atif J, Mara DL, Castellana B, Treissman J, Baltayeva J, Beristain AG. ADAM8 localizes to extravillous trophoblasts within the maternal-fetal interface and potentiates trophoblast cell line migration through a β1 integrin-mediated mechanism. Mol Hum Reprod 2019; 24:495-509. [PMID: 30124911 DOI: 10.1093/molehr/gay034] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 08/12/2018] [Indexed: 12/11/2022] Open
Abstract
STUDY QUESTION Does A Disintegrin And Metalloproteinase 8 (ADAM8) control extravillous trophoblast (EVT) differentiation and migration in early human placental development? SUMMARY ANSWER ADAM8 mRNA preferentially localizes to invasive HLA-G-positive trophoblasts, associates with the acquirement of an EVT phenotype and promotes trophoblast migration through a mechanism requiring β1-integrin. WHAT IS KNOWN ALREADY Placental establishment in the first trimester of pregnancy requires the differentiation of progenitor trophoblasts into invasive EVTs that produce a diverse repertoire of proteases that facilitate matrix remodeling and activation of signaling pathways important in controlling cell migration. While multiple ADAM proteases, including ADAM8, are highly expressed by invasive trophoblasts, the role of ADAM8 in controlling EVT-related processes is unknown. STUDY DESIGN, SIZE, DURATION First trimester placental villi and decidua (6-12 weeks' gestation), primary trophoblasts and trophoblastic cell lines (JEG3, JAR, Bewo, HTR8/SVNeo) were used to examine ADAM8 expression, localization and function. All experiments were performed on at least three independent occasions (n = 3). PARTICIPANTS/MATERIALS, SETTING, METHODS Placental villi and primary trophoblasts derived from IRB approved first trimester placental (n = 24) and decidual (n = 4) were used to examine ADAM8 localization and expression by in situ RNAScope hybridization, flow cytometry, quantitative PCR and immunoblot analyses. Primary trophoblasts were differentiated into EVT-like cells by plating on fibronectin and were assessed by immunofluorescence microscopy and immunoblot analysis of keratin-7, vimentin, epidermal growth factor receptor (EGFR), HLA-G and ADAM8. ADAM8 function was examined in primary EVTs and trophoblastic cell lines utilizing siRNA-directed silencing and over-expression strategies. Trophoblast migration was assessed using Transwell chambers, cell-matrix binding was tested using fibronectin-adhesion assays, and ADAM8-β1-integrin interactions were determined by immunofluorescence microscopy, co-immunoprecipitation experiments and function-promoting/inhibiting antibodies. MAIN RESULTS AND THE ROLE OF CHANCE Within first trimester placental tissues, ADAM8 preferentially localized to HLA-G+ trophoblasts residing within anchoring columns and decidua. Functional experiments in primary trophoblasts and trophoblastic cell lines show that ADAM8 promotes trophoblast migration through a mechanism independent of intrinsic protease activity. We show that ADAM8 localizes to peri-nuclear and cell-membrane actin-rich structures during cell-matrix attachment and promotes trophoblast binding to fibronectin matrix. Moreover, ADAM8 potentiates β1-integrin activation and promotes cell migration through a mechanism dependent on β1-integrin function. LIMITATIONS, REASONS FOR CAUTION The primary limitation of this study was the use of in vitro experiments in examining ADAM8 function, as well as the implementation of immortalized trophoblastic cell lines. Histological localization of ADAM8 within placental and decidual tissue sections was limited to mRNA level analysis. Further, patient information corresponding to tissues obtained by elective terminations was not available. WIDER IMPLICATIONS OF THE FINDINGS The novel non-proteolytic pro-migratory role for ADAM8 in controlling trophoblast migration revealed by this study sheds insight into the importance of ADAM8 in EVT biology and placental development. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by grants from the Natural Sciences and Engineering Research Council of Canada (NSERC-Discovery Grant) and the Canadian Institutes of Health Research (CIHR-Open Operating Grant). There are no conflicts or competing interests. TRIAL REGISTRATION NUMBER NA.
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Affiliation(s)
- H T Le
- British Columbia Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, Canada.,Department of Obstetrics and Gynecology, The University of British Columbia, Faculty of Medicine, Suite 930, 1125 Howe Street, Vancouver, Canada
| | - J Atif
- Department of Obstetrics and Gynecology, The University of British Columbia, Faculty of Medicine, Suite 930, 1125 Howe Street, Vancouver, Canada
| | - D L Mara
- British Columbia Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, Canada
| | - B Castellana
- British Columbia Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, Canada.,Department of Obstetrics and Gynecology, The University of British Columbia, Faculty of Medicine, Suite 930, 1125 Howe Street, Vancouver, Canada
| | - J Treissman
- British Columbia Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, Canada.,Department of Obstetrics and Gynecology, The University of British Columbia, Faculty of Medicine, Suite 930, 1125 Howe Street, Vancouver, Canada
| | - J Baltayeva
- British Columbia Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, Canada.,Department of Obstetrics and Gynecology, The University of British Columbia, Faculty of Medicine, Suite 930, 1125 Howe Street, Vancouver, Canada
| | - A G Beristain
- British Columbia Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, Canada.,Department of Obstetrics and Gynecology, The University of British Columbia, Faculty of Medicine, Suite 930, 1125 Howe Street, Vancouver, Canada
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15
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He C, Shan N, Xu P, Ge H, Yuan Y, Liu Y, Zhang P, Wen L, Zhang F, Xiong L, Peng C, Qi H, Tong C, Baker PN. Hypoxia-induced Downregulation of SRC-3 Suppresses Trophoblastic Invasion and Migration Through Inhibition of the AKT/mTOR Pathway: Implications for the Pathogenesis of Preeclampsia. Sci Rep 2019; 9:10349. [PMID: 31316078 PMCID: PMC6637123 DOI: 10.1038/s41598-019-46699-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 06/29/2019] [Indexed: 01/14/2023] Open
Abstract
Preeclampsia (PE) is characterized by poor placentation, consequent on aberrant extravillous trophoblast (EVT) cell function during placental development. The SRC family of proteins is important during pregnancy, especially SRC-3, which regulates placental morphogenesis and embryo survival. Although SRC-3 expression in mouse trophoblast giant cells has been documented, its role in the functional regulation of extravillous trophoblasts and the development of PE remains unknown. This study found that SRC-3 expression was significantly lower in placentas from PE pregnancies as compared to uncomplicated pregnancies. Additionally, both CoCl2-mimicked hypoxia and suppression of endogenous SRC-3 expression by lentivirus short hairpin RNA attenuated the migration and invasion abilities of HTR-8/SVneo cells. Moreover, we demonstrated that SRC-3 physically interacts with AKT to regulate the migration and invasion of HTR-8 cells, via the AKT/mTOR pathway. We also found that the inhibition of HTR-8 cell migration and invasion by CoCl2-mimicked hypoxia was through the SRC-3/AKT/mTOR axis. Our findings indicate that, in early gestation, accumulation of HIF-1α inhibits the expression of SRC-3, which impairs extravillous trophoblastic invasion and migration by directly interacting with AKT. This potentially leads to insufficient uterine spiral artery remodeling and placental hypoperfusion, and thus the development of PE.
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Affiliation(s)
- Chengjin He
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Nan Shan
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Ping Xu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Huisheng Ge
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yu Yuan
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yangming Liu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Pu Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Li Wen
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Fumei Zhang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Liling Xiong
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Chuan Peng
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Hongbo Qi
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. .,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China. .,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Chao Tong
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. .,International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China. .,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Philip N Baker
- International Collaborative Joint Laboratory of Reproduction and Development, Ministry of Education of China, Chongqing Medical University, Chongqing, 400016, China.,Liggins Institute, University of Auckland, Auckland, 1142, New Zealand.,College of Life Sciences, University of Leicester, Leicester, LE1 7RH, UK
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16
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Huppertz B. The Critical Role of Abnormal Trophoblast Development in the Etiology of Preeclampsia. Curr Pharm Biotechnol 2019; 19:771-780. [PMID: 29701150 PMCID: PMC6463401 DOI: 10.2174/1389201019666180427110547] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 03/06/2018] [Accepted: 04/08/2018] [Indexed: 11/22/2022]
Abstract
Background: The pregnancy pathology preeclampsia is still among the leading causes of ma-ternal and perinatal morbidity and mortality. At the same time, its etiology is far from being identified and remains obscure in a number of facets. A number of hypotheses have been developed to explain the altered interplay between placenta and mother leading to the clinical symptoms of preeclampsia. However, none of them offers the opportunity to explain the variability of cases with late-onset versus early-onset, mild versus severe and with or with-out additional fetal growth restriction. Conclusion: This paper identifies the weaknesses of the most important current hypothesis and at the same time offers a set of new elucidations including maternal susceptibility, and villous/extravillous trophoblast differentiation to explain the development of preeclampsia. Such elucidations allow following new scientific routes and pathways to untangle the etiology of preeclampsia.
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Affiliation(s)
- Berthold Huppertz
- Department of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
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17
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Gamage TKJB, Schierding W, Hurley D, Tsai P, Ludgate JL, Bhoothpur C, Chamley LW, Weeks RJ, Macaulay EC, James JL. The role of DNA methylation in human trophoblast differentiation. Epigenetics 2018; 13:1154-1173. [PMID: 30475094 DOI: 10.1080/15592294.2018.1549462] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The placenta is a vital fetal exchange organ connecting mother and baby. Specialised placental epithelial cells, called trophoblasts, are essential for adequate placental function. Trophoblasts transform the maternal vasculature to allow efficient blood flow to the placenta and facilitate adequate nutrient uptake. Placental development is in part regulated by epigenetic mechanisms. However, our understanding of how DNA methylation contributes to human trophoblast differentiation is limited. To better understand how genome-wide methylation differences affect trophoblast differentiation, reduced representation bisulfite sequencing (RRBS) was conducted on four matched sets of trophoblasts; side-population trophoblasts (a candidate human trophoblast stem cell population), cytotrophoblasts (an intermediate progenitor population), and extravillous trophoblasts (EVT, a terminally differentiated population) each isolated from the same first trimester placenta. Each trophoblast population had a distinct methylome. In line with their close differentiation relationship, the methylation profile of side-population trophoblasts was most similar to cytotrophoblasts, whilst EVT had the most distinct methylome. In comparison to mature trophoblast populations, side-population trophoblasts exhibited differential methylation of genes and miRNAs involved in cell cycle regulation, differentiation, and regulation of pluripotency. A combined methylomic and transcriptomic approach was taken to better understand cytotrophoblast differentiation to EVT. This revealed methylation of 41 genes involved in epithelial to mesenchymal transition and metastatic cancer pathways, which likely contributes to the acquisition of an invasive EVT phenotype. However, the methylation status of a gene did not always predict gene expression. Therefore, while CpG methylation plays a role in trophoblast differentiation, it is likely not the only regulatory mechanism involved in this process.
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Affiliation(s)
- Teena K J B Gamage
- a Department of Obstetrics and Gynaecology , The University of Auckland , Auckland , New Zealand
| | - William Schierding
- a Department of Obstetrics and Gynaecology , The University of Auckland , Auckland , New Zealand
| | - Daniel Hurley
- b Systems Biology Laboratory, Melbourne School of Engineering , University of Melbourne , Melbourne , Australia
| | - Peter Tsai
- a Department of Obstetrics and Gynaecology , The University of Auckland , Auckland , New Zealand
| | - Jackie L Ludgate
- c Department of Pathology, Dunedin School of Medicine , University of Otago , Dunedin , New Zealand
| | | | - Lawrence W Chamley
- a Department of Obstetrics and Gynaecology , The University of Auckland , Auckland , New Zealand
| | - Robert J Weeks
- c Department of Pathology, Dunedin School of Medicine , University of Otago , Dunedin , New Zealand
| | - Erin C Macaulay
- c Department of Pathology, Dunedin School of Medicine , University of Otago , Dunedin , New Zealand
| | - Joanna L James
- a Department of Obstetrics and Gynaecology , The University of Auckland , Auckland , New Zealand
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18
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Hutabarat M, Wibowo N, Obermayer-Pietsch B, Huppertz B. Impact of vitamin D and vitamin D receptor on the trophoblast survival capacity in preeclampsia. PLoS One 2018; 13:e0206725. [PMID: 30408071 PMCID: PMC6226106 DOI: 10.1371/journal.pone.0206725] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 10/18/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Preeclampsia and intra-uterine growth restriction (IUGR) are major health problems during pregnancy affecting both mother and child. Defective placental development and failure of trophoblast differentiation during pregnancy are important aspects in the pathogenesis of both syndromes. Recent studies have shown that autophagy is involved in the trophoblast survival capacity. As vitamin D has a central role in many cellular processes, we studied the relation of vitamin D and autophagy in those processes of preeclampsia and IUGR. METHODS Serum and placental samples from four groups of cases; normal term, IUGR, early-onset and late-onset preeclampsia, were analyzed for 25(OH)D vitamin D, sFLT1, PGF, LGALS13 in serum and vitamin D receptor (VDR), MAP1LC3B and BECN1 in placental tissues. RESULTS There was a significant difference in the sFLT1/PGF ratio in preeclamptic cases compared to controls and IUGR. There was a significant difference between these groups in the MAP1LC3B/BECN1 ratio as marker of the trophoblast survival capacity with a significantly reduced ratio in villous trophoblast of early-onset preeclampsia. Maternal vitamin D deficiency was found in all pathological pregnancies combined with significantly reduced staining levels of placental VDR in IUGR. Finally, there was a strong and significant negative correlation between the survival capacity (MAP1LC3B/BECN1) and both maternal vitamin D and placental VDR in the preeclampsia groups. CONCLUSION Vitamin D and intracellular VDR are strongly related to the trophoblast survival capacity in preeclampsia.
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Affiliation(s)
- Martina Hutabarat
- Postgraduate Department, Doctorate Program Faculty of Medicine, University of Indonesia, Jakarta, Indonesia
- * E-mail:
| | - Noroyono Wibowo
- Department of Obstetric and Gynecology, Division of Maternal Fetal Medicine, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia
| | - Barbara Obermayer-Pietsch
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, Graz, Austria
| | - Berthold Huppertz
- Department of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
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19
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Zhao B, Han X, Meng Q, Luo Q. Early second trimester maternal serum markers in the prediction of gestational diabetes mellitus. J Diabetes Investig 2018; 9:967-974. [PMID: 29288571 PMCID: PMC6031488 DOI: 10.1111/jdi.12798] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/02/2017] [Accepted: 12/19/2017] [Indexed: 12/15/2022] Open
Abstract
AIMS/INTRODUCTION To determine whether maternal serum markers in the early second trimester are useful for prediction of gestational diabetes mellitus (GDM). MATERIALS AND METHODS A total of 876 singleton pregnancies were recruited in the present study. Blood samples were collected during 16-20 gestational weeks. GDM women were diagnosed by an oral glucose tolerance test during 24-28 gestational weeks. A total of 56 women with GDM and 73 healthy pregnant women were selected. Maternal serum concentrations of placental protein 13 (PP13), pentraxin 3 (PTX3), soluble fms-like tyrosine kinase-1 (sFlt-1), myostatin and follistatin (FST) were detected at 16-20 weeks' gestation. All of these markers concentrations were expressed as multiples of the medians. The Mann-Whitney U-test was used for comparison of the multiples of the medians of different concentrations of these five serum markers between the GDM group and the control group. Receiver operating characteristic curve analysis was applied to assess the sensitivity and specificity of significant serum markers from a Mann-Whitney U-test comparison. RESULTS Compared with healthy pregnancies, the serum levels of PP13, PTX3, sFlt-1, myostatin and FST in the early second trimester were significantly increased in patients who had developed GDM late. In screening for GDM by PP13, PTX3, sFlt-1, myostatin and FST, the detection rates were 92.3, 94.9, 94.9, 92.5 and 92.3%, respectively at 80% specificity. PTX3 and sFlt-1 were the most sensitive markers. CONCLUSIONS Maternal serum markers including PP13, PTX3, sFlt-1, myostatin and FST increase in the early second trimester of women with GDM. These five markers, especially PTX3 and sFlt-1, could have the value of prediction for those patients who would develop GDM in the late second trimester.
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Affiliation(s)
- Baihui Zhao
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
| | - Xiujun Han
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
| | - Qing Meng
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
| | - Qiong Luo
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
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20
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Alejandra R, Natalia S, Alicia E D. The blocking of aquaporin-3 (AQP3) impairs extravillous trophoblast cell migration. Biochem Biophys Res Commun 2018; 499:227-232. [PMID: 29567477 DOI: 10.1016/j.bbrc.2018.03.133] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 03/17/2018] [Indexed: 01/30/2023]
Abstract
Several aquaporins (AQPs) are expressed in extravillous (EVT) and villous trophoblast cells. Among them, AQP3 is the most abundant AQP expressed in chorionic villi samples from first trimester, followed by AQP1 and AQP9. Although AQP3 expression persists in term placentas, it is significantly decreased in placentas from preeclamptic pregnancies. AQP3 is involved in the migration of different cell types, however its role in human placenta is still unknown. Here, we evaluated the role of AQP3 in the migration of EVT cells during early gestation. Our results showed that Swan 71 cells expressed AQP1, AQP3 and AQP9 but only the blocking of AQP3 by CuSO4 or the silencing of its expression by siRNA significantly attenuates EVT cell migration. Our work provides evidence that AQP3 is required for EVT cell migration and suggests that an altered expression of placental AQP3 may produce failures in placentation such as in preeclampsia.
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Affiliation(s)
- Reca Alejandra
- Laboratorio de Biología de la Reproducción, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO)- CONICET- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Szpilbarg Natalia
- Laboratorio de Biología de la Reproducción, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO)- CONICET- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Damiano Alicia E
- Laboratorio de Biología de la Reproducción, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO)- CONICET- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina; Cátedra de Biología Celular y Molecular, Departamento de Ciencias Biológicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina.
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21
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Wang W, Wang R, Zhang Q, Mor G, Zhang H. Benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide induces human trophoblast Swan 71 cell dysfunctions due to cell apoptosis through disorder of mitochondrial fission/fusion. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 233:820-832. [PMID: 29144987 DOI: 10.1016/j.envpol.2017.11.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 10/06/2017] [Accepted: 11/06/2017] [Indexed: 06/07/2023]
Abstract
Benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide (BPDE) is an endocrine disrupter and ultimate carcinogenic product of benzo(a)pyrene (BaP). Numerous studies have shown that BPDE causes trophoblast-related diseases, such as preeclampsia, growth restriction or miscarriages. However, the underlying mechanism, especially the mitochondria-related BPDE-induced trophoblast dysfunction remains unknown. In this study, we examined mitochondrial functions in BPDE-induced human trophoblast cell line Swan 71. BPDE decreased cell ability, attenuated cell invasion and HCG secretion, induced cell apoptosis, decreased mitochondrial membrane potential, increased reactive oxygen species (ROS) and MDA, and decreased SOD activity in a dose-dependent manner. In the mechanism, BPDE significantly increased pro-apoptosis protein (P53 and Bak1) and decreased anti-apoptosis protein (Bcl-2). Furthermore, the protein expression levels of mitochondrial fusion genes (Mfn1, Mfn2, and OPA1) were decreased and those of fission genes (Fis1 and Drp1) were increased with increasing concentrations of BPDE and incubation time, resulting in the release of Cyt c and activation of Caspase 3, which irreversibly induced trophoblast cell apoptosis. This study reveals the mechanism of dysfunction of trophoblast cells through cell apoptosis due to the disorder of mitochondrial fission/fusion after exposure to BPDE, providing a further experimental understanding the adverse effects of BaP on trophoblast cells in early pregnancy.
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Affiliation(s)
- Weiping Wang
- Public Health Laboratory Sciences and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China
| | - Rong Wang
- Public Health Laboratory Sciences and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China
| | - Qiao Zhang
- Department of Toxicology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Gil Mor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Reproductive Immunology Unit, Yale University School of Medicine, 333 Cedar Street LSOG 305A, New Haven, CT 06520, USA
| | - Huidong Zhang
- Public Health Laboratory Sciences and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.
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22
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Abstract
INTRODUCTION Trophoblast progenitor cell differentiation towards the extravillous trophoblast (EVT) lineage initiates within proximal regions of anchoring columns of first trimester placental villi. While molecular processes controlling the initial stages of progenitor cell differentiation along the EVT pathway have been described, much remains unknown about factors important in distal column cell differentiation into invasive EVTs. ADAMs are proteases that regulate growth factor signaling, cell-matrix adhesion, and matrix proteolysis, and thus impact many processes relevant in placentation. Global gene expression studies identified the ADAM subtype, ADAM28, to be highly expressed in EVT-like trophoblasts, suggesting that it may play a role in EVT function. This study aims to test the functional importance of ADAM28 in column cell outgrowth and maintenance. METHODS ADAM28 mRNA levels and protein localization were determined by qPCR and immunofluorescence microscopy analyses in purified placental villi cell populations and tissues. ADAM28 function in trophoblast column outgrowth was examined using ADAM28-targetting siRNAs in Matrigel-imbedded placental explant cultures. RESULTS Within placental villi, ADAM28 mRNA levels were highest in HLA-G+ column trophoblasts, and consistent with this, ADAM28 was preferentially localized to HLA-G+ trophoblasts within distal anchoring columns and decidual tissue. siRNA-directed loss of ADAM28 impaired trophoblast column outgrowth and resulted in increased apoptosis in matrix-invading trophoblasts. DISCUSSION Our findings suggest that ADAM28 promotes column outgrowth by providing survival cues within anchoring column cells. This study also provides insight into a possible role for ADAM28 in driving differentiation of column trophoblasts into invasive HLA-G+ EVT subsets.
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Affiliation(s)
- L C De Luca
- British Columbia's Children's Hospital Research Institute, Vancouver, Canada; Department of Obstetrics & Gynecology, The University of British Columbia, Vancouver, Canada
| | - H T Le
- British Columbia's Children's Hospital Research Institute, Vancouver, Canada; Department of Obstetrics & Gynecology, The University of British Columbia, Vancouver, Canada
| | - D L Mara
- British Columbia's Children's Hospital Research Institute, Vancouver, Canada
| | - A G Beristain
- British Columbia's Children's Hospital Research Institute, Vancouver, Canada; Department of Obstetrics & Gynecology, The University of British Columbia, Vancouver, Canada.
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Herdl S, Huebner H, Volkert G, Marek I, Menendez-Castro C, Noegel SC, Ruebner M, Rascher W, Hartner A, Fahlbusch FB. Integrin α8 Is Abundant in Human, Rat, and Mouse Trophoblasts. Reprod Sci 2017; 24:1426-1437. [PMID: 28136130 DOI: 10.1177/1933719116689597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Integrins exert regulatory functions in placentogenesis. Null mutation of certain integrin α subunits leads to placental defects with subsequent fetal growth restriction or embryonic lethality in mice. So far, the placental role of α8 integrin remains to be determined. METHODS Localization of α8 integrin and its ligands, fibronectin (FN) and osteopontin (OPN), was studied by immunohistochemistry in human, rat, and mouse placenta. The vascularization of the placental labyrinth layer of α8 integrin-deficient mice was determined by CD31 staining. In humans, α8 integrin expression was assessed via real-time polymerase chain reaction in healthy placentas, in the placental pathologies such as intrauterine growth restriction (IUGR), preeclampsia, and HELLP-syndrome (hemolysis, elevated liver enzymes, low platelet count), as well as in primary extravillous trophoblasts (EVT) and villous trophoblasts. RESULTS In humans, α8 integrin was detected in first and third trimester syncytiotrophoblast and EVT. Although OPN showed the same localization, FN was observed in EVT only. No expressional changes in α8 integrin were detected in the placental pathologies studied. Rodent placenta showed α8 integrin expression in giant cells and in the labyrinth layer. The localization of OPN and FN, however, showed species-specific differences. Knockout of α8 integrin in mice did not cause IUGR, despite some reduction in labyrinth layer vascularization. CONCLUSION α8 Integrin is expressed in functional placental compartments among its ligands, OPN and/or FN, across species. Although this may point to a regulatory role in trophoblast function, our data from α8 integrin-deficient mice indicated only mild placental pathology. Thus, the lack of placental α8 integrin seems to be largely compensated for.
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Affiliation(s)
- Sebastian Herdl
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Hanna Huebner
- 2 Department of Gynaecology and Obstetrics, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Gudrun Volkert
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Ines Marek
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Carlos Menendez-Castro
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Stephanie C Noegel
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias Ruebner
- 2 Department of Gynaecology and Obstetrics, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Wolfgang Rascher
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Andrea Hartner
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Fabian B Fahlbusch
- 1 Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
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24
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Thompson LP, Pence L, Pinkas G, Song H, Telugu BP. Placental Hypoxia During Early Pregnancy Causes Maternal Hypertension and Placental Insufficiency in the Hypoxic Guinea Pig Model. Biol Reprod 2016; 95:128. [PMID: 27806942 PMCID: PMC5315426 DOI: 10.1095/biolreprod.116.142273] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 06/21/2016] [Accepted: 10/19/2016] [Indexed: 12/25/2022] Open
Abstract
Chronic placental hypoxia is one of the root causes of placental insufficiencies that result in pre-eclampsia and maternal hypertension. Chronic hypoxia causes disruption of trophoblast (TB) development, invasion into maternal decidua, and remodeling of maternal spiral arteries. The pregnant guinea pig shares several characteristics with humans such as hemomonochorial placenta, villous subplacenta, deep TB invasion, and remodeling of maternal arteries, and is an ideal animal model to study placental development. We hypothesized that chronic placental hypoxia of the pregnant guinea pig inhibits TB invasion and alters spiral artery remodeling. Time-mated pregnant guinea pigs were exposed to either normoxia (NMX) or three levels of hypoxia (HPX: 16%, 12%, or 10.5% O2) from 20 day gestation until midterm (39-40 days) or term (60-65 days). At term, HPX (10.5% O2) increased maternal arterial blood pressure (HPX 57.9 ± 2.3 vs. NMX 40.4 ± 2.3, P < 0.001), decreased fetal weight by 16.1% (P < 0.05), and increased both absolute and relative placenta weights by 10.1% and 31.8%, respectively (P < 0.05). At midterm, there was a significant increase in TB proliferation in HPX placentas as confirmed by increased PCNA and KRT7 staining and elevated ESX1 (TB marker) gene expression (P < 0.05). Additionally, quantitative image analysis revealed decreased invasion of maternal blood vessels by TB cells. In summary, this animal model of placental HPX identifies several aspects of abnormal placental development, including increased TB proliferation and decreased migration and invasion of TBs into the spiral arteries, the consequences of which are associated with maternal hypertension and fetal growth restriction.
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Affiliation(s)
- Loren P Thompson
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, Maryland
- University of Maryland School of Medicine, Baltimore, Maryland
| | - Laramie Pence
- Animal Biosciences and Biotechnology Laboratory, USDA-ARS, Beltsville, Maryland
- Animal and Avian Science, University of Maryland, College Park, Maryland
| | - Gerald Pinkas
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, Maryland
- University of Maryland School of Medicine, Baltimore, Maryland
| | - Hong Song
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, Maryland
- University of Maryland School of Medicine, Baltimore, Maryland
| | - Bhanu P Telugu
- Animal Biosciences and Biotechnology Laboratory, USDA-ARS, Beltsville, Maryland
- Animal and Avian Science, University of Maryland, College Park, Maryland
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25
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Douglas GC, Thirkill TL, Kumar P, Loi M, Hilborn ED. Effect of microcystin-LR on human placental villous trophoblast differentiation in vitro. ENVIRONMENTAL TOXICOLOGY 2016; 31:427-439. [PMID: 25346179 DOI: 10.1002/tox.22056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 09/19/2014] [Accepted: 10/01/2014] [Indexed: 06/04/2023]
Abstract
Microcystin-LR is a cyanobacterial toxin found in surface and recreational waters that inhibits protein phosphatases and may disrupt the cytoskeleton. Microcystins induce apoptosis in hepatocytes at ≤ 2.0 µM. Nothing is known about the effects of microcystins on human placental trophoblast differentiation and function. The differentiation of villous trophoblasts to form syncytiotrophoblast occurs throughout pregnancy and is essential for normal placental and fetal development. To investigate the effects of microcystin, villous cytotrophoblasts were isolated from term placentas using an established method and exposed to microcystin-LR. Microcystin-LR below the cytotoxic dose of 25 µM did not cause cell rounding or detachment, had no effect on apoptosis, and no effect on the morphological differentiation of mononucleated cytotrophoblasts to multinucleated syncytiotrophoblast. However, secretion of human chorionic gonadotropin (hCG) increased in a microcystin-LR dose-dependent manner. When incubated with l-buthionine sulphoximine (BSO) to deplete glutathione levels, trophoblast morphological differentiation proceeded normally in the presence of microcystin-LR. Microcystin-LR did not disrupt the trophoblast microtubule cytoskeleton, which is known to play a role in trophoblast differentiation. Immunofluorescence studies showed that trophoblasts express organic anion transport protein 1B3 (OATP1B3), a known microcystin transport protein. In comparison to hepatocytes, trophoblasts appear to be more resistant to the toxic effects of microcystin-LR. The physiological implications of increased hCG secretion in response to microcystin-LR exposure remain to be determined.
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Affiliation(s)
- Gordon C Douglas
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, California, USA
| | - Twanda L Thirkill
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, California, USA
| | - Priyadarsini Kumar
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, California, USA
| | - Minerva Loi
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, California, USA
| | - Elizabeth D Hilborn
- Office of Research and Development, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina, USA
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Jiang X, Jones S, Andrew BY, Ganti A, Malysheva OV, Giallourou N, Brannon PM, Roberson MS, Caudill MA. Choline inadequacy impairs trophoblast function and vascularization in cultured human placental trophoblasts. J Cell Physiol 2014; 229:1016-27. [PMID: 24647919 DOI: 10.1002/jcp.24526] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 12/04/2013] [Indexed: 01/26/2023]
Abstract
Maternal choline intake during gestation may influence placental function and fetal health outcomes. Specifically, we previously showed that supplemental choline reduced placental and maternal circulating concentrations of the anti-angiogenic factor, fms-like tyrosine kinase-1 (sFLT1), in pregnant women as well as sFLT1 production in cultured human trophoblasts. The current study aimed to quantify the effect of choline on a wider array of biomarkers related to trophoblast function and to elucidate possible mechanisms. Immortalized HTR-8/SVneo trophoblasts were cultured in different choline concentrations (8, 13, and 28 µM [control]) for 96-h and markers of angiogenesis, inflammation, apoptosis, and blood vessel formation were examined. Choline insufficiency altered the angiogenic profile, impaired in vitro angiogenesis, increased inflammation, induced apoptosis, increased oxidative stress, and yielded greater levels of protein kinase C (PKC) isoforms δ and ϵ possibly through increases in the PKC activators 1-stearoyl-2-arachidonoyl-sn-glycerol and 1-stearoyl-2-docosahexaenoyl-sn-glycerol. Notably, the addition of a PKC inhibitor normalized angiogenesis and apoptosis, and partially rescued the aberrant gene expression profile. Together these results suggest that choline inadequacy may contribute to placental dysfunction and the development of disorders related to placental insufficiency by activating PKC.
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Affiliation(s)
- Xinyin Jiang
- Division of Nutritional Science, Cornell University, Ithaca, New York
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Huppertz B, Weiss G, Moser G. Trophoblast invasion and oxygenation of the placenta: measurements versus presumptions. J Reprod Immunol 2013; 101-102:74-79. [PMID: 23747129 DOI: 10.1016/j.jri.2013.04.003] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 04/02/2013] [Accepted: 04/11/2013] [Indexed: 10/26/2022]
Abstract
Invasion of extravillous trophoblast into maternal tissues has a profound effect on the oxygenation of the placenta and hence the fetus. The main route of trophoblast invasion is interstitial invasion into the tissues of the decidua and myometrium. From this main route side branches reach the spiral arteries (endovascular trophoblast) as well as the uterine glands (endoglandular trophoblast) to open both structures toward the intervillous space. This enables histiotrophic nutrition in the first trimester and hemotrophic nutrition in the second and third trimesters of pregnancy. Failure of endovascular trophoblast invasion has profound effects on the oxygenation of the placenta. Interestingly, this does not lead to hypoxia as has long been presumed. Rather, all measurements available today point to increased oxygen levels within the placenta in patients with a failure of spiral artery transformation. This should lead to a rethink regarding pathological conditions such as intrauterine growth restriction and preeclampsia.
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Affiliation(s)
- Berthold Huppertz
- Institute of Cell Biology, Histology and Embryology, Medical University of Graz, Austria.
| | - Gregor Weiss
- Institute of Cell Biology, Histology and Embryology, Medical University of Graz, Austria
| | - Gerit Moser
- Institute of Cell Biology, Histology and Embryology, Medical University of Graz, Austria
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28
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Jiang X, Bar HY, Yan J, Jones S, Brannon PM, West AA, Perry CA, Ganti A, Pressman E, Devapatla S, Vermeylen F, Wells MT, Caudill MA. A higher maternal choline intake among third‐trimester pregnant women lowers placental and circulating concentrations of the antiangiogenic factor fms‐like tyrosine kinase‐1 (sFLT1). FASEB J 2012. [DOI: 10.1096/fj.12-221648] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xinyin Jiang
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
| | - Haim Y. Bar
- Cornell University Statistical Consulting UnitCornell UniversityIthacaNew YorkUSA
| | - Jian Yan
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
| | - Sara Jones
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
| | - Patsy M. Brannon
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
| | - Allyson A. West
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
| | - Cydne A. Perry
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
| | - Anita Ganti
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
| | - Eva Pressman
- Department of Obstetrics and GynecologyUniversity of Rochester Medical CenterRochesterNew YorkUSA
| | | | - Francoise Vermeylen
- Cornell University Statistical Consulting UnitCornell UniversityIthacaNew YorkUSA
| | - Martin T. Wells
- Department of Statistical ScienceCornell UniversityIthacaNew YorkUSA
| | - Marie A. Caudill
- Division of Nutritional SciencesCornell UniversityIthacaNew YorkUSA
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