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Lapehn S, Nair S, Firsick EJ, MacDonald J, Thoreson C, Litch JA, Bush NR, Kadam L, Girard S, Myatt L, Prasad B, Sathyanarayana S, Paquette AG. Transcriptomic comparison of in vitro models of the human placenta. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.14.598695. [PMID: 38915703 PMCID: PMC11195179 DOI: 10.1101/2024.06.14.598695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Studying the human placenta through in vitro cell culture methods is necessary due to limited access and amenability of human placental tissue to certain experimental methods as well as distinct anatomical and physiological differences between animal and human placentas. Selecting an in vitro culture model of the human placenta is challenging due to representation of different trophoblast cell types with distinct biological roles and limited comparative studies that define key characteristics of these models. Therefore, the aim of this research was to create a comprehensive transcriptomic comparison of common in vitro models of the human placenta compared to bulk placental tissue from the CANDLE and GAPPS cohorts (N=1083). We performed differential gene expression analysis on publicly available RNA sequencing data from 6 common in vitro models of the human placenta (HTR-8/SVneo, BeWo, JEG-3, JAR, Primary Trophoblasts, and Villous Explants) and compared to CANDLE and GAPPS bulk placental tissue or cytotrophoblast, syncytiotrophoblast, and extravillous trophoblast cell types derived from bulk placental tissue. All in vitro placental models had a substantial number of differentially expressed genes (DEGs, FDR<0.01) compared to the CANDLE and GAPPS placentas (Average DEGs=10,873), and the individual trophoblast cell types (Average DEGs=5,346), indicating that there are vast differences in gene expression compared to bulk and cell-type specific human placental tissue. Hierarchical clustering identified 53 gene clusters with distinct expression profiles across placental models, with 22 clusters enriched for specific KEGG pathways, 7 clusters enriched for high-expression placental genes, and 7 clusters enriched for absorption, distribution, metabolism, and excretion genes. In vitro placental models were classified by fetal sex based on expression of Y-chromosome genes that identified HTR-8/SVneo cells as being of female origin, while JEG-3, JAR, and BeWo cells are of male origin. Overall, none of the models were a close approximation of the transcriptome of bulk human placental tissue, highlighting the challenges with model selection. To enable researchers to select appropriate models, we have compiled data on differential gene expression, clustering, and fetal sex into an accessible web application: "Comparative Transcriptomic Placental Model Atlas (CTPMA)" which can be utilized by researchers to make informed decisions about their selection of in vitro placental models.
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Affiliation(s)
- Samantha Lapehn
- Center for Developmental Biology and Regenerative Medicine, Seattle Children!s Research Institute, Seattle, WA 98101 United States
| | - Sidharth Nair
- Center for Developmental Biology and Regenerative Medicine, Seattle Children!s Research Institute, Seattle, WA 98101 United States
| | - Evan J. Firsick
- Center for Developmental Biology and Regenerative Medicine, Seattle Children!s Research Institute, Seattle, WA 98101 United States
| | - James MacDonald
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA 98195 United States
| | - Ciara Thoreson
- Global Alliance to Prevent Prematurity and Stillbirth, Lynwood, WA 98036 United States
| | - James A Litch
- Global Alliance to Prevent Prematurity and Stillbirth, Lynwood, WA 98036 United States
| | - Nicole R. Bush
- Department of Psychiatry and Behavioral Sciences; Department of Pediatrics, University of California San Francisco, San Francisco, CA 94143 United States
| | - Leena Kadam
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR 97239 United States
| | - Sylvie Girard
- Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN 55905 United States
| | - Leslie Myatt
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR 97239 United States
| | - Bhagwat Prasad
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA 99202 United States
| | - Sheela Sathyanarayana
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98195 United States
- Center for Child Health, Behavior and Development, Seattle Children!s Research Institute, Seattle, WA 98101 United States
- Department of Epidemiology, University of Washington School of Public Health, Seattle, WA 98101 United States
| | - Alison G. Paquette
- Center for Developmental Biology and Regenerative Medicine, Seattle Children!s Research Institute, Seattle, WA 98101 United States
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA 98195 United States
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98195 United States
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2
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Chen H, Kapidzic M, Gantar D, Aksel S, Levan J, Abrahamsson DP, Jigmeddagva U, Basrai S, San A, Gaw SL, Woodruff TJ, Fisher SJ, Robinson JF. Perfluorooctanoic acid induces transcriptomic alterations in second trimester human cytotrophoblasts. Toxicol Sci 2023; 196:187-199. [PMID: 37738295 PMCID: PMC10682971 DOI: 10.1093/toxsci/kfad097] [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] [Indexed: 09/24/2023] Open
Abstract
Poly- and perfluroroalkylated substances (PFAS) are a major class of surfactants used in industry applications and consumer products. Despite efforts to reduce the usage of PFAS due to their environmental persistence, compounds such as perfluorooctanoic acid (PFOA) are widely detected in human blood and tissue. Although growing evidence supports that prenatal exposures to PFOA and other PFAS are linked to adverse pregnancy outcomes, the target organs and pathways remain unclear. Recent investigations in mouse and human cell lines suggest that PFAS may impact the placenta and impair trophoblast function. In this study, we investigated the effects of PFOA on cytotoxicity and the transcriptome in cultured second trimester human cytotrophoblasts (CTBs). We show that PFOA significantly reduces viability and induces cell death at 24 h, in a concentration-dependent manner. At subcytotoxic concentrations, PFOA impacted expression of hundreds of genes, including several molecules (CRH, IFIT1, and TNFSF10) linked with lipid metabolism and innate immune response pathways. Furthermore, in silico analyses suggested that regulatory factors such as peroxisome proliferator-activated receptor-mediated pathways may be especially important in response to PFOA. In summary, this study provides evidence that PFOA alters primary human CTB viability and gene pathways that could contribute to placental dysfunction and disease.
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Affiliation(s)
- Hao Chen
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Mirhan Kapidzic
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Danielle Gantar
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Sena Aksel
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Justine Levan
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Dimitri P Abrahamsson
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Unurzul Jigmeddagva
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Sanah Basrai
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Ali San
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Stephanie L Gaw
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Tracey J Woodruff
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Susan J Fisher
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
| | - Joshua F Robinson
- Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco (UCSF), San Francisco, California 94143, USA
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Li X, Li ZH, Wang YX, Liu TH. A comprehensive review of human trophoblast fusion models: recent developments and challenges. Cell Death Discov 2023; 9:372. [PMID: 37816723 PMCID: PMC10564767 DOI: 10.1038/s41420-023-01670-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/23/2023] [Accepted: 09/29/2023] [Indexed: 10/12/2023] Open
Abstract
As an essential component of the maternal-fetal interface, the placental syncytiotrophoblast layer contributes to a successful pregnancy by secreting hormones necessary for pregnancy, transporting nutrients, mediating gas exchange, balancing immune tolerance, and resisting pathogen infection. Notably, the deficiency in mononuclear trophoblast cells fusing into multinucleated syncytiotrophoblast has been linked to adverse pregnancy outcomes, such as preeclampsia, fetal growth restriction, preterm birth, and stillbirth. Despite the availability of many models for the study of trophoblast fusion, there exists a notable disparity from the ideal model, limiting the deeper exploration into the placental development. Here, we reviewed the existing models employed for the investigation of human trophoblast fusion from several aspects, including the development history, latest progress, advantages, disadvantages, scope of application, and challenges. The literature searched covers the monolayer cell lines, primary human trophoblast, placental explants, human trophoblast stem cells, human pluripotent stem cells, three-dimensional cell spheres, organoids, and placenta-on-a-chip from 1938 to 2023. These diverse models have significantly enhanced our comprehension of placental development regulation and the underlying mechanisms of placental-related disorders. Through this review, our objective is to provide readers with a thorough understanding of the existing trophoblast fusion models, making it easier to select most suitable models to address specific experimental requirements or scientific inquiries. Establishment and application of the existing human placental trophoblast fusion models.
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Affiliation(s)
- Xia Li
- Department of Bioinformatics, School of Basic Medical Sciences, Chongqing Medical University, 400016, Chongqing, China
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, 400016, Chongqing, China
| | - Zhuo-Hang Li
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, 400016, Chongqing, China
- Medical Laboratory Department, Traditional Chinese Medicine Hospital of Yaan, 625099, Sichuan, China
| | - Ying-Xiong Wang
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, 400016, Chongqing, China.
| | - Tai-Hang Liu
- Department of Bioinformatics, School of Basic Medical Sciences, Chongqing Medical University, 400016, Chongqing, China.
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, 400016, Chongqing, China.
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Rabussier G, Bünter I, Bouwhuis J, Soragni C, van Zijp T, Ng CP, Domansky K, de Windt LJ, Vulto P, Murdoch CE, Bircsak KM, Lanz HL. Healthy and diseased placental barrier on-a-chip models suitable for standardized studies. Acta Biomater 2023; 164:363-376. [PMID: 37116636 DOI: 10.1016/j.actbio.2023.04.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 04/05/2023] [Accepted: 04/21/2023] [Indexed: 04/30/2023]
Abstract
Pathologies associated with uteroplacental hypoxia, such as preeclampsia are among the leading causes of maternal and perinatal morbidity in the world. Its fundamental mechanisms are yet poorly understood due to a lack of good experimental models. Here we report an in vitro model of the placental barrier, based on co-culture of trophoblasts and endothelial cells against a collagen extracellular matrix in a microfluidic platform. The model yields a functional syncytium with barrier properties, polarization, secretion of relevant extracellular membrane components, thinning of the materno-fetal space, hormone secretion, and transporter function. The model is exposed to low oxygen conditions and perfusion flow is modulated to induce a pathological environment. This results in reduced barrier function, hormone secretion, and microvilli as well as an increased nuclei count, characteristics of preeclamptic placentas. The model is implemented in a titer plate-based microfluidic platform fully amenable to high-throughput screening. We thus believe this model could aid mechanistic understanding of preeclampsia and other placental pathologies associated with hypoxia/ischemia, as well as support future development of effective therapies through target and compound screening campaigns. STATEMENT OF SIGNIFICANCE: : The human placenta is a unique organ sustaining fetus growth but is also the source of severe pathologies, such as Preeclampsia. Though leading cause of perinatal mortality in the world, preeclampsia remains untreatable due to a lack of relevant in vitro placenta models. To better understand the pathology, we have developed 3D placental barrier models in a microfluidic device. The platform allows parallel culture of 40 perfused physiological miniaturized placental barriers, comprising a differentiated syncytium and endothelium that have been validated for transporter functions. Exposure to a hypoxic and ischemic environment enabled the mimicking of preeclamptic characteristics in high-throughput, which we believe could lead to a better understanding of the pathology as well as support future effective therapies development.
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Affiliation(s)
- Gwenaëlle Rabussier
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands; Department of Cardiology, Maastricht University, Maastricht, 6226 ER, The Netherlands
| | - Ivan Bünter
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands
| | | | - Camilla Soragni
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands; Department of Cardiology, Maastricht University, Maastricht, 6226 ER, The Netherlands
| | | | - Chee Ping Ng
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands
| | | | - Leon J de Windt
- Department of Cardiology, Maastricht University, Maastricht, 6226 ER, The Netherlands
| | - Paul Vulto
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands
| | - Colin E Murdoch
- Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, Scotland, UK
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Faral-Tello P, Pagotto R, Bollati-Fogolín M, Francia ME. Modeling the human placental barrier to understand Toxoplasma gondii´s vertical transmission. Front Cell Infect Microbiol 2023; 13:1130901. [PMID: 36968102 PMCID: PMC10034043 DOI: 10.3389/fcimb.2023.1130901] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/23/2023] [Indexed: 03/11/2023] Open
Abstract
Toxoplasma gondii is a ubiquitous apicomplexan parasite that can infect virtually any warm-blooded animal. Acquired infection during pregnancy and the placental breach, is at the core of the most devastating consequences of toxoplasmosis. T. gondii can severely impact the pregnancy’s outcome causing miscarriages, stillbirths, premature births, babies with hydrocephalus, microcephaly or intellectual disability, and other later onset neurological, ophthalmological or auditory diseases. To tackle T. gondii’s vertical transmission, it is important to understand the mechanisms underlying host-parasite interactions at the maternal-fetal interface. Nonetheless, the complexity of the human placenta and the ethical concerns associated with its study, have narrowed the modeling of parasite vertical transmission to animal models, encompassing several unavoidable experimental limitations. Some of these difficulties have been overcome by the development of different human cell lines and a variety of primary cultures obtained from human placentas. These cellular models, though extremely valuable, have limited ability to recreate what happens in vivo. During the last decades, the development of new biomaterials and the increase in stem cell knowledge have led to the generation of more physiologically relevant in vitro models. These cell cultures incorporate new dimensions and cellular diversity, emerging as promising tools for unraveling the poorly understood T. gondii´s infection mechanisms during pregnancy. Herein, we review the state of the art of 2D and 3D cultures to approach the biology of T. gondii pertaining to vertical transmission, highlighting the challenges and experimental opportunities of these up-and-coming experimental platforms.
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Affiliation(s)
- Paula Faral-Tello
- Laboratory of Apicomplexan Biology, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Romina Pagotto
- Cell Biology Unit, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | | | - Maria E. Francia
- Laboratory of Apicomplexan Biology, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Departamento de Parasitología y Micología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
- *Correspondence: Maria E. Francia,
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6
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Andrawus M, Sharvit L, Atzmon G. Epigenetics and Pregnancy: Conditional Snapshot or Rolling Event. Int J Mol Sci 2022; 23:12698. [PMID: 36293556 PMCID: PMC9603966 DOI: 10.3390/ijms232012698] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/12/2022] [Accepted: 10/19/2022] [Indexed: 11/17/2022] Open
Abstract
Epigenetics modification such as DNA methylation can affect maternal health during the gestation period. Furthermore, pregnancy can drive a range of physiological and molecular changes that have the potential to contribute to pathological conditions. Pregnancy-related risk factors include multiple environmental, behavioral, and hereditary factors that can impact maternal DNA methylation with long-lasting consequences. Identification of the epigenetic patterns linked to poor pregnancy outcomes is crucial since changes in DNA methylation patterns can have long-term effects. In this review, we provide an overview of the epigenetic changes that influence pregnancy-related molecular programming such as gestational diabetes, immune response, and pre-eclampsia, in an effort to close the gap in current understanding regarding interactions between the environment, the genetics of the fetus, and the pregnant woman.
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Affiliation(s)
| | | | - Gil Atzmon
- Department of Human Biology, University of Haifa, Haifa 3498838, Israel
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7
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Wang B, He BS, Ruan XL, Zhu J, Hu R, Wang J, Li Y, Yang YH, Liu ML. An integrated microfluidics platform with high-throughput single-cell cloning array and concentration gradient generator for efficient cancer drug effect screening. Mil Med Res 2022; 9:51. [PMID: 36131323 PMCID: PMC9494811 DOI: 10.1186/s40779-022-00409-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 08/05/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Tumor cell heterogeneity mediated drug resistance has been recognized as the stumbling block of cancer treatment. Elucidating the cytotoxicity of anticancer drugs at single-cell level in a high-throughput way is thus of great value for developing precision therapy. However, current techniques suffer from limitations in dynamically characterizing the responses of thousands of single cells or cell clones presented to multiple drug conditions. METHODS We developed a new microfluidics-based "SMART" platform that is Simple to operate, able to generate a Massive single-cell array and Multiplex drug concentrations, capable of keeping cells Alive, Retainable and Trackable in the microchambers. These features are achieved by integrating a Microfluidic chamber Array (4320 units) and a six-Concentration gradient generator (MAC), which enables highly efficient analysis of leukemia drug effects on single cells and cell clones in a high-throughput way. RESULTS A simple procedure produces 6 on-chip drug gradients to treat more than 3000 single cells or single-cell derived clones and thus allows an efficient and precise analysis of cell heterogeneity. The statistic results reveal that Imatinib (Ima) and Resveratrol (Res) combination treatment on single cells or clones is much more efficient than Ima or Res single drug treatment, indicated by the markedly reduced half maximal inhibitory concentration (IC50). Additionally, single-cell derived clones demonstrate a higher IC50 in each drug treatment compared to single cells. Moreover, primary cells isolated from two leukemia patients are also found with apparent heterogeneity upon drug treatment on MAC. CONCLUSION This microfluidics-based "SMART" platform allows high-throughput single-cell capture and culture, dynamic drug-gradient treatment and cell response monitoring, which represents a new approach to efficiently investigate anticancer drug effects and should benefit drug discovery for leukemia and other cancers.
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Affiliation(s)
- Biao Wang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Bang-Shun He
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Xiao-Lan Ruan
- Department of Hematology, Renmin Hospital, Wuhan University, Wuhan, 430060, China
| | - Jiang Zhu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Rui Hu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Jie Wang
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA, 94304, USA
| | - Ying Li
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China. .,University of Chinese Academy of Sciences, Beijing, 10049, China.
| | - Yun-Huang Yang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Mai-Li Liu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
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8
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Chen H, Wang SH, Chen C, Yu XY, Zhu JN, Mansell T, Novakovic B, Saffery R, Baker PN, Han TL, Zhang H. A novel role of FoxO3a in the migration and invasion of trophoblast cells: from metabolic remodeling to transcriptional reprogramming. Mol Med 2022; 28:92. [PMID: 35941589 PMCID: PMC9358829 DOI: 10.1186/s10020-022-00522-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 07/29/2022] [Indexed: 11/29/2022] Open
Abstract
Background The forkhead box O3a protein (FoxO3a) has been reported to be involved in the migration and invasion of trophoblast, but its underlying mechanisms unknown. In this study, we aim to explore the transcriptional and metabolic regulations of FoxO3a on the migration and invasion of early placental development.
Methods Lentiviral vectors were used to knock down the expression of FoxO3a of the HTR8/SVneo cells. Western blot, matrigel invasion assay, wound healing assay, seahorse, gas-chromatography-mass spectrometry (GC–MS) based metabolomics, fluxomics, and RNA-seq transcriptomics were performed. Results We found that FoxO3a depletion restrained the migration and invasion of HTR8/SVneo cells. Metabolomics, fluxomics, and seahorse demonstrated that FoxO3a knockdown resulted in a switch from aerobic to anaerobic respiration and increased utilization of aromatic amino acids and long-chain fatty acids from extracellular nutrients. Furthermore, our RNA-seq also demonstrated that the expression of COX-2 and MMP9 decreased after FoxO3a knockdown, and these two genes were closely associated with the migration/invasion progress of trophoblast cells. Conclusions Our results suggested novel biological roles of FoxO3a in early placental development. FoxO3a exerts an essential effect on trophoblast migration and invasion owing to the regulations of COX2, MMP9, aromatic amino acids, energy metabolism, and oxidative stress.
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Affiliation(s)
- Hao Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, Chongqing, China
| | - Shi-Han Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, Chongqing, China
| | - Chang Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Xin-Yang Yu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
| | - Jia-Nan Zhu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, Chongqing, China
| | - Toby Mansell
- Molecular Immunity, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Boris Novakovic
- Molecular Immunity, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Richard Saffery
- Molecular Immunity, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Philip N Baker
- Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, UK
| | - Ting-Li Han
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Hua Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. .,Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.
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9
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Vachalova V, Karahoda R, Ottaviani M, Anandam KY, Abad C, Albrecht C, Staud F. Functional reorganization of monoamine transport systems during villous trophoblast differentiation: evidence of distinct differences between primary human trophoblasts and BeWo cells. Reprod Biol Endocrinol 2022; 20:112. [PMID: 35927731 PMCID: PMC9351077 DOI: 10.1186/s12958-022-00981-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/19/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Three primary monoamines-serotonin, norepinephrine, and dopamine-play major roles in the placenta-fetal brain axis. Analogously to the brain, the placenta has transport mechanisms that actively take up these monoamines into trophoblast cells. These transporters are known to play important roles in the differentiated syncytiotrophoblast layer, but their status and activities in the undifferentiated, progenitor cytotrophoblast cells are not well understood. Thus, we have explored the cellular handling and regulation of monoamine transporters during the phenotypic transitioning of cytotrophoblasts along the villous pathway. METHODS Experiments were conducted with two cellular models of syncytium development: primary trophoblast cells isolated from the human term placenta (PHT), and the choriocarcinoma-derived BeWo cell line. The gene and protein expression of membrane transporters for serotonin (SERT), norepinephrine (NET), dopamine (DAT), and organic cation transporter 3 (OCT3) was determined by quantitative PCR and Western blot analysis, respectively. Subsequently, the effect of trophoblast differentiation on transporter activity was analyzed by monoamine uptake into cells. RESULTS We present multiple lines of evidence of changes in the transcriptional and functional regulation of monoamine transporters associated with trophoblast differentiation. These include enhancement of SERT and DAT gene and protein expression in BeWo cells. On the other hand, in PHT cells we report negative modulation of SERT, NET, and OCT3 protein expression. We show that OCT3 is the dominant monoamine transporter in PHT cells, and its main functional impact is on serotonin uptake, while passive transport strongly contributes to norepinephrine and dopamine uptake. Further, we show that a wide range of selective serotonin reuptake inhibitors affect serotonin cellular accumulation, at pharmacologically relevant drug concentrations, via their action on both OCT3 and SERT. Finally, we demonstrate that BeWo cells do not well reflect the molecular mechanisms and properties of healthy human trophoblast cells. CONCLUSIONS Collectively, our findings provide insights into the regulation of monoamine transport during trophoblast differentiation and present important considerations regarding appropriate in vitro models for studying monoamine regulation in the placenta.
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Affiliation(s)
- Veronika Vachalova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Rona Karahoda
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Martina Ottaviani
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Kasin Yadunandam Anandam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Cilia Abad
- 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
| | - Frantisek Staud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic.
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10
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James JL, Lissaman A, Nursalim YNS, Chamley LW. Modelling human placental villous development: designing cultures that reflect anatomy. Cell Mol Life Sci 2022; 79:384. [PMID: 35753002 PMCID: PMC9234034 DOI: 10.1007/s00018-022-04407-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 05/12/2022] [Accepted: 05/30/2022] [Indexed: 11/03/2022]
Abstract
The use of in vitro tools to study trophoblast differentiation and function is essential to improve understanding of normal and abnormal placental development. The relative accessibility of human placentae enables the use of primary trophoblasts and placental explants in a range of in vitro systems. Recent advances in stem cell models, three-dimensional organoid cultures, and organ-on-a-chip systems have further shed light on the complex microenvironment and cell-cell crosstalk involved in placental development. However, understanding each model's strengths and limitations, and which in vivo aspects of human placentation in vitro data acquired does, or does not, accurately reflect, is key to interpret findings appropriately. To help researchers use and design anatomically accurate culture models, this review both outlines our current understanding of placental development, and critically considers the range of established and emerging culture models used to study this, with a focus on those derived from primary tissue.
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Affiliation(s)
- Joanna L James
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
| | - Abbey Lissaman
- Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Yohanes N S Nursalim
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Lawrence W Chamley
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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11
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Balahmar RM, Ranganathan B, Ebegboni V, Alamir J, Rajakumar A, Deepak V, Sivasubramaniam S. Analyses of selected tumour-associated factors expression in normotensive and preeclamptic placenta. Pregnancy Hypertens 2022; 29:36-45. [PMID: 35717832 DOI: 10.1016/j.preghy.2022.06.001] [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: 07/16/2021] [Revised: 06/04/2022] [Accepted: 06/07/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Human placenta is often considered a controlled-tumour because of shared properties such as invasion and angiogenesis. We assessed the status of a few selected tumour-associated factors (TAFs) in late onset pre-eclamptic (PE) and normotensive (NT) placentae, to understand their involvement in trophoblast invasion. These molecules include aldehyde dehydrogenase (ALDH3A1), aurora kinases (AURK-A/C), platelet derived growth factor receptor-α (PDGFRα), jagged-1 (JAG1) and twist related protein-1 (TWIST1). METHODS The expression of TAF was compared in 13 NT and 11 PE (late onset) placentae using immunoblotting/immunohistochemistry. We then used a novel spheroidal cell model developed from transformed human first trimester trophoblast cell lines HTR8/SVneo and TEV-1 to determine the expression and localization of these six factors during invasion. We also compared the expression of these TAFs during migration and invasion. RESULTS Our results suggest that expressions of ALDH3A1, AURK-A, PDGFRα, and TWIST1 are significantly upregulated in PE placentae (p < 0.05) when compared to NT placentae, whereas AURK-C and JAG1 are down-regulated (p < 0.05). The protein expression pattern of all the six factors were found to be similar in spheroids in comparison to their parental counterparts. The invasive potential of the spheroids was also enhanced when compared with the parental cells. DISCUSSION Collectively, data from our present study suggests that these TAFs are involved in placental invasion and their altered expressions may be regarded as a compensatory mechanism against reduced invasion.
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Affiliation(s)
- Reham M Balahmar
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Bhuvaneshwari Ranganathan
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Vernon Ebegboni
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Jumanah Alamir
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Augustine Rajakumar
- Department of Gynecology & Obstetrics(3), Emory University School of Medicine, Atlanta, GA 30033, USA
| | - Venkataraman Deepak
- School of Human Sciences, College of Life and Natural Sciences, University of Derby, Kedleston Road, Derby DE22 1GB, United Kingdom.
| | - Shiva Sivasubramaniam
- School of Human Sciences, College of Life and Natural Sciences, University of Derby, Kedleston Road, Derby DE22 1GB, United Kingdom.
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12
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Elkin ER, Su AL, Kilburn BA, Bakulski KM, Armant DR, Loch-Caruso R. Toxicity assessments of selected trichloroethylene and perchloroethylene metabolites in three in vitro human placental models. Reprod Toxicol 2022; 109:109-120. [PMID: 35304307 PMCID: PMC9107309 DOI: 10.1016/j.reprotox.2022.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 01/25/2023]
Abstract
Residential and occupational exposures to the industrial solvents perchloroethylene (PERC) and trichloroethylene (TCE) present public health concerns. In humans, maternal PERC and TCE exposures can be associated with adverse birth outcomes. Because PERC and TCE are biotransformed to toxic metabolites and placental dysfunction can contribute to adverse birth outcomes, the present study compared the toxicity of key PERC and TCE metabolites in three in vitro human placenta models. We measured cell viability and caspase 3 + 7 activity in the HTR-8/SVneo and BeWo cell lines, and caspase 3 + 7 activity in first trimester villous explant cultures. Cultures were exposed for 24 h to 5-100 µM S-(1,2-dichlorovinyl)-L-cysteine (DCVC) and S-(1,2,2-trichlorovinyl)-L-cysteine (TCVC), or 5-200 µM trichloroacetate (TCA) and dichloroacetate (DCA). DCVC significantly reduced cell viability and increased caspase 3 + 7 activity in HTR-8/SVneo cells at a lower concentration (20 µM) compared with concentrations toxic to BeWo cells and villous explants. Similarly, TCVC reduced cell viability and increased caspase 3 + 7 activity in HTR-8/SVneo cells but not in BeWo cells. TCA and DCA had only negligible effects on HTR-8/SVneo or BeWo cells. This study advances understanding of potential risks of PERC and TCE exposure during pregnancy by identifying metabolites toxic in placental cells and tissues.
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Affiliation(s)
- Elana R Elkin
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan, USA; Department of Nutritional Sciences, University of Michigan, Ann Arbor, Michigan, USA.
| | - Anthony L Su
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan, USA; Department of Nutritional Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Brian A Kilburn
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, Michigan, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Kelly M Bakulski
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA; Department of Nutritional Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - D Randall Armant
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, Michigan, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA; Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan, USA
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13
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Deval G, Boland S, Fournier T, Ferecatu I. On Placental Toxicology Studies and Cerium Dioxide Nanoparticles. Int J Mol Sci 2021; 22:ijms222212266. [PMID: 34830142 PMCID: PMC8624015 DOI: 10.3390/ijms222212266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/20/2021] [Accepted: 11/08/2021] [Indexed: 12/31/2022] Open
Abstract
The human placenta is a transient organ essential for pregnancy maintenance, fetal development and growth. It has several functions, including that of a selective barrier against pathogens and xenobiotics from maternal blood. However, some pollutants can accumulate in the placenta or pass through with possible repercussions on pregnancy outcomes. Cerium dioxide nanoparticles (CeO2 NPs), also termed nanoceria, are an emerging pollutant whose impact on pregnancy is starting to be defined. CeO2 NPs are already used in different fields for industrial and commercial applications and have even been proposed for some biomedical applications. Since 2010, nanoceria have been subject to priority monitoring by the Organization for Economic Co-operation and Development in order to assess their toxicity. This review aims to summarize the current methods and models used for toxicology studies on the placental barrier, from the basic ones to the very latest, as well as to overview the most recent knowledge of the impact of CeO2 NPs on human health, and more specifically during the sensitive window of pregnancy. Further research is needed to highlight the relationship between environmental exposure to CeO2 and placental dysfunction with its implications for pregnancy outcome.
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Affiliation(s)
- Gaëlle Deval
- Université de Paris, Inserm, UMR-S 1139, 3PHM, Faculté de Pharmacie, 75006 Paris, France; (G.D.); (T.F.)
| | - Sonja Boland
- Université de Paris, BFA, UMR 8251, CNRS, F-75013 Paris, France;
| | - Thierry Fournier
- Université de Paris, Inserm, UMR-S 1139, 3PHM, Faculté de Pharmacie, 75006 Paris, France; (G.D.); (T.F.)
| | - Ioana Ferecatu
- Université de Paris, Inserm, UMR-S 1139, 3PHM, Faculté de Pharmacie, 75006 Paris, France; (G.D.); (T.F.)
- Correspondence: ; Tel.: +33-1-5373-9605
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14
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Rift Valley Fever Virus Propagates in Human Villous Trophoblast Cell Lines and Induces Cytokine mRNA Responses Known to Provoke Miscarriage. Viruses 2021; 13:v13112265. [PMID: 34835071 PMCID: PMC8625252 DOI: 10.3390/v13112265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 02/05/2023] Open
Abstract
The mosquito-borne Rift Valley fever (RVF) is a prioritised disease that has been listed by the World Health Organization for urgent research and development of counteraction. Rift Valley fever virus (RVFV) can cause a cytopathogenic effect in the infected cell and induce hyperimmune responses that contribute to pathogenesis. In livestock, the consequences of RVFV infection vary from mild symptoms to abortion. In humans, 1–3% of patients with RVFV infection develop severe disease, manifested as, for example, haemorrhagic fever, encephalitis or blindness. RVFV infection has also been associated with miscarriage in humans. During pregnancy, there should be a balance between pro-inflammatory and anti-inflammatory mediators to create a protective environment for the placenta and foetus. Many viruses are capable of penetrating that protective environment and infecting the foetal–maternal unit, possibly via the trophoblasts in the placenta, with potentially severe consequences. Whether it is the viral infection per se, the immune response, or both that contribute to the pathogenesis of miscarriage remains unknown. To investigate how RVFV could contribute to pathogenesis during pregnancy, we infected two human trophoblast cell lines, A3 and Jar, representing normal and transformed human villous trophoblasts, respectively. They were infected with two RVFV variants (wild-type RVFV and RVFV with a deleted NSs protein), and the infection kinetics and 15 different cytokines were analysed. The trophoblast cell lines were infected by both RVFV variants and infection caused upregulation of messenger RNA (mRNA) expression for interferon (IFN) types I–III and inflammatory cytokines, combined with cell line-specific mRNA expression of transforming growth factor (TGF)-β1 and interleukin (IL)-10. When comparing the two RVFV variants, we found that infection with RVFV lacking NSs function caused a hyper-IFN response and inflammatory response, while the wild-type RVFV suppressed the IFN I and inflammatory response. The induction of certain cytokines by RVFV infection could potentially lead to teratogenic effects that disrupt foetal and placental developmental pathways, leading to birth defects and other pregnancy complications, such as miscarriage.
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15
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Colson A, Depoix CL, Hubinont C, Debiève F. Isolation of Primary Cytotrophoblasts From Human Placenta at Term. Bio Protoc 2021; 11:e4185. [PMID: 34722831 DOI: 10.21769/bioprotoc.4185] [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: 03/10/2021] [Revised: 07/06/2021] [Accepted: 07/12/2021] [Indexed: 11/02/2022] Open
Abstract
The placenta is a multifaceted organ, fulfilling critical functions for the fetus and the mother. Therefore, it is a critical regulator of the pregnancy, and its dysfunction leads to diseases, including fetal growth restriction and preeclampsia. Studying the placenta is a difficult task since its existence is transient, and its structure is specific to our species. In vitro differentiation of primary cytotrophoblast isolated from term human placenta has been widely used in the placental research field as it represents a reliable model to study cellular differentiation and function. Direct alternatives include trophoblastic cell lines, explants, and organoids, but this protocol, based on the separation of the cells on a Percoll gradient, presents the advantage of being relatively cheap and easy to perform in every research laboratory. Furthermore, the 2D culture is a flexible method that can be adapted to various experimental conditions (transfection, drug exposure, metabolic study, observations, etc.), allowing mechanistic explorations of cellular processes.
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Affiliation(s)
- Arthur Colson
- Pole of Obstetrics, Institute of Experimental and Clinical Research (IREC), Catholic University of Louvain, Brussels, Belgium.,Department of Obstetrics, Saint-Luc University Hospital, Brussels, Belgium
| | - Christophe Louis Depoix
- Pole of Obstetrics, Institute of Experimental and Clinical Research (IREC), Catholic University of Louvain, Brussels, Belgium
| | - Corinne Hubinont
- Pole of Obstetrics, Institute of Experimental and Clinical Research (IREC), Catholic University of Louvain, Brussels, Belgium.,Department of Obstetrics, Saint-Luc University Hospital, Brussels, Belgium
| | - Frédéric Debiève
- Pole of Obstetrics, Institute of Experimental and Clinical Research (IREC), Catholic University of Louvain, Brussels, Belgium.,Department of Obstetrics, Saint-Luc University Hospital, Brussels, Belgium
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16
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Abstract
The world of long non-coding RNAs (lncRNAs) has opened up massive new prospects in understanding the regulation of gene expression. Not only are there seemingly almost infinite numbers of lncRNAs in the mammalian cell, but they have highly diverse mechanisms of action. In the nucleus, some are chromatin-associated, transcribed from transcriptional enhancers (eRNAs) and/or direct changes in the epigenetic landscape with profound effects on gene expression. The pituitary gonadotrope is responsible for activation of reproduction through production and secretion of appropriate levels of the gonadotropic hormones. As such, it exemplifies a cell whose function is defined through changes in developmental and temporal patterns of gene expression, including those that are hormonally induced. Roles for diverse distal regulatory elements and eRNAs in gonadotrope biology have only just begun to emerge. Here, we will present an overview of the different kinds of lncRNAs that alter gene expression, and what is known about their roles in regulating some of the key gonadotrope genes. We will also review various screens that have detected differentially expressed pituitary lncRNAs associated with changes in reproductive state and those whose expression is found to play a role in gonadotrope-derived nonfunctioning pituitary adenomas. We hope to shed light on this exciting new field, emphasize the open questions, and encourage research to illuminate the roles of lncRNAs in various endocrine systems.
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Affiliation(s)
- Tal Refael
- Faculty of Biology, Technion Israel Institute of Technology, Haifa 32000, Israel
| | - Philippa Melamed
- Faculty of Biology, Technion Israel Institute of Technology, Haifa 32000, Israel
- Correspondence: Philippa Melamed, PhD, Faculty of Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel.
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17
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Romero-Pimentel AL, Almeida D, Muñoz-Montero S, Rangel C, Mendoza-Morales R, Gonzalez-Saenz EE, Nagy C, Chen G, Aouabed Z, Theroux JF, Turecki G, Martinez-Levy G, Walss-Bass C, Monroy-Jaramillo N, Fernández-Figueroa EA, Gómez-Cotero A, García-Dolores F, Morales-Marin ME, Nicolini H. Integrative DNA Methylation and Gene Expression Analysis in the Prefrontal Cortex of Mexicans Who Died by Suicide. Int J Neuropsychopharmacol 2021; 24:935-947. [PMID: 34214149 PMCID: PMC8653872 DOI: 10.1093/ijnp/pyab042] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/04/2021] [Accepted: 06/29/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Suicide represents a major health concern, especially in developing countries. While many demographic risk factors have been proposed, the underlying molecular pathology of suicide remains poorly understood. A body of evidence suggests that aberrant DNA methylation and expression is involved. In this study, we examined DNA methylation profiles and concordant gene expression changes in the prefrontal cortex of Mexicans who died by suicide. METHODS In collaboration with the coroner's office in Mexico City, brain samples of males who died by suicide (n = 35) and age-matched sudden death controls (n = 13) were collected. DNA and RNA were extracted from prefrontal cortex tissue and analyzed with the Infinium Methylation480k and the HumanHT-12 v4 Expression Beadchips, respectively. RESULTS We report evidence of altered DNA methylation profiles at 4430 genomic regions together with 622 genes characterized by differential expression in cases vs controls. Seventy genes were found to have concordant methylation and expression changes. Metacore-enriched analysis identified 10 genes with biological relevance to psychiatric phenotypes and suicide (ADCY9, CRH, NFATC4, ABCC8, HMGA1, KAT2A, EPHA2, TRRAP, CD22, and CBLN1) and highlighted the association that ADCY9 has with various pathways, including signal transduction regulated by the cAMP-responsive element modulator, neurophysiological process regulated by the corticotrophin-releasing hormone, and synaptic plasticity. We therefore went on to validate the observed hypomethylation of ADCY9 in cases vs control through targeted bisulfite sequencing. CONCLUSION Our study represents the first, to our knowledge, analysis of DNA methylation and gene expression associated with suicide in a Mexican population using postmortem brain, providing novel insights for convergent molecular alterations associated with suicide.
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Affiliation(s)
- Ana L Romero-Pimentel
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico,McGill Group of Suicide Studies, Montreal,Canada
| | - Daniel Almeida
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Said Muñoz-Montero
- Facultad de Psicología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Claudia Rangel
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Roberto Mendoza-Morales
- Instituto de Ciencias Forenses del Tribunal Superior de Justicia de la CDMX, Mexico City, Mexico
| | - Eli E Gonzalez-Saenz
- Instituto de Ciencias Forenses del Tribunal Superior de Justicia de la CDMX, Mexico City, Mexico
| | - Corina Nagy
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Gary Chen
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Zahia Aouabed
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | | | - Gustavo Turecki
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Gabriela Martinez-Levy
- Psychiatric Genetics Department, Clinical Research Branch, National Institute of Psychiatry Ramón de la Fuente, Mexico City, Mexico
| | - Consuelo Walss-Bass
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas,USA
| | - Nancy Monroy-Jaramillo
- Department of Neurogenetics, National Institute of Neurology and Neurosurgery, Manuel Velasco Suarez, Mexico City, Mexico
| | | | - Amalia Gómez-Cotero
- Centro Interdisciplinario de Ciencias de la Salud, Instituto Politécnico Nacional, Unidad Santo Tomás, Mexico City, Mexico
| | - Fernando García-Dolores
- Instituto de Ciencias Forenses del Tribunal Superior de Justicia de la CDMX, Mexico City, Mexico
| | | | - Humberto Nicolini
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico,Correspondence: José Humberto Nicolini Sánchez, MD, PhD, Laboratorio de Genómica de Enfermedades Psiquiátricas y neurodegenerativas, Instituto Nacional de Medicina Genómica, Periférico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Ciudad de México, CDMX, México ()
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18
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Elkin ER, Bakulski KM, Colacino JA, Bridges D, Kilburn BA, Armant DR, Loch-Caruso R. Transcriptional profiling of the response to the trichloroethylene metabolite S-(1,2-dichlorovinyl)-L-cysteine revealed activation of the eIF2α/ATF4 integrated stress response in two in vitro placental models. Arch Toxicol 2021; 95:1595-1619. [PMID: 33725128 PMCID: PMC7961173 DOI: 10.1007/s00204-021-03011-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/25/2021] [Indexed: 12/13/2022]
Abstract
Trichloroethylene (TCE) is an industrial solvent and widespread environmental contaminant. Although TCE exposure is prevalent, epidemiological studies of TCE exposure associations with adverse birth outcomes are inconclusive. Prior studies show that the TCE metabolite S-(1,2-dichlorovinyl)-l-cysteine (DCVC) exhibits toxicity in a placental cell line. In the current study, genome-wide gene expression and gene set enrichment analyses were used to identify novel genes and pathway alterations in the HTR-8/SVneo human trophoblast cell line and human placental villous explants treated with DCVC at concentrations relevant to human exposures. In the cells, concentration- and time-dependent effects were observed, as evidenced by the magnitude of altered gene expression after treatment with 20 µM DCVC versus 10 µM, and 12-h versus 6-h of treatment. Comparing the two models for the transcriptional response to 12-h 20 µM DCVC treatment, no differentially expressed genes reached significance in villous explants, whereas 301 differentially expressed genes were detected in HTR-8/SVneo cells compared with non-treated controls (FDR < 0.05 + LogFC > 0.35 [FC > 1.3]). GSEA revealed five upregulated enriched pathways in common between explants and cells (FDR < 0.05). Moreover, all 12-h DCVC treatment groups from both models contained upregulated pathways enriched for genes regulated by the ATF4 transcription factor. The overrepresentation of ATF4 regulation of differentially expressed genes indicated activation of the integrated stress response (ISR), a condition triggered by multiple stress stimuli, including the unfolded protein response. DCVC-induced ISR activation was confirmed by elevated eIF2α phosphorylation, ATF4 protein concentrations, and decreased global protein synthesis in HTR-8/SVneo cells. This study identifies a mechanism of DCVC-induced cytotoxicity by revealing the involvement of a specific stress signaling pathway.
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Affiliation(s)
- Elana R Elkin
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029, USA.
| | - Kelly M Bakulski
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
| | - Justin A Colacino
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029, USA.,Department of Nutritional Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Dave Bridges
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Brian A Kilburn
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - D Randall Armant
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029, USA
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19
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Zhao J, Chow RP, McLeese RH, Hookham MB, Lyons TJ, Yu JY. Modelling preeclampsia: a comparative analysis of the common human trophoblast cell lines. FASEB Bioadv 2021; 3:23-35. [PMID: 33521587 PMCID: PMC7805545 DOI: 10.1096/fba.2020-00057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/08/2020] [Accepted: 09/28/2020] [Indexed: 12/03/2022] Open
Abstract
Preeclampsia remains a challenge without an effective therapy. Evidence supports targetability of soluble fms‐like tyrosine kinase‐1 (sFlt‐1) and soluble endoglin (sEng), which are released excessively from the placenta under ischemic and hypoxic stresses. We compared four trophoblast cell lines, BeWo, Jar, Jeg‐3, and HTR‐8/SVneo, in order to identify a suitable model for drug screening. Cultured trophoblasts were exposed to 1% oxygen vs. normoxia for 24‐48 hr; human umbilical vein and aortic endothelial cells were included for comparison. Supernatant sFlt‐1 and sEng concentrations were measured by ELISA, and sFlt‐1 mRNA expression determined by RT‐PCR. Cellular responses to experimental therapeutics were explored. All four trophoblast lines secreted sEng, which did not increase by hypoxia. BeWo, Jar, and Jeg‐3 exhibited significantly enhanced expression of sFlt‐1 i13 and e15a mRNA in response to hypoxia; however, only BeWo released a detectable level of sFlt‐1 protein, which was doubled by hypoxia. In contrast, hypoxia decreased sFlt‐1 mRNA expression and protein release in HTR‐8/SVneo, similarly to endothelial cells. The cellular mechanism involved HIFα. BeWo responded to representative agents similarly to human primary placental tissues in the literature. These data support that the BeWo‐hypoxia model mimics a key pathogenic mechanism of preeclampsia and has potential value for translational drug discovery.
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Affiliation(s)
- Jiawu Zhao
- Wellcome-Wolfson Institute for Experimental Medicine School of Medicine, Dentistry and Biomedical Sciences Queen's University Belfast Belfast UK
| | - Rebecca P Chow
- Wellcome-Wolfson Institute for Experimental Medicine School of Medicine, Dentistry and Biomedical Sciences Queen's University Belfast Belfast UK.,Division of Endocrinology, Diabetes and Metabolic Diseases Department of Medicine Medical University of South Carolina Charleston SC USA
| | - Rebecca H McLeese
- Wellcome-Wolfson Institute for Experimental Medicine School of Medicine, Dentistry and Biomedical Sciences Queen's University Belfast Belfast UK.,Division of Endocrinology, Diabetes and Metabolic Diseases Department of Medicine Medical University of South Carolina Charleston SC USA
| | - Michelle B Hookham
- Wellcome-Wolfson Institute for Experimental Medicine School of Medicine, Dentistry and Biomedical Sciences Queen's University Belfast Belfast UK
| | - Timothy J Lyons
- Wellcome-Wolfson Institute for Experimental Medicine School of Medicine, Dentistry and Biomedical Sciences Queen's University Belfast Belfast UK.,Division of Endocrinology, Diabetes and Metabolic Diseases Department of Medicine Medical University of South Carolina Charleston SC USA
| | - Jeremy Y Yu
- Wellcome-Wolfson Institute for Experimental Medicine School of Medicine, Dentistry and Biomedical Sciences Queen's University Belfast Belfast UK.,Division of Endocrinology, Diabetes and Metabolic Diseases Department of Medicine Medical University of South Carolina Charleston SC USA
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20
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Io S, Kondoh E, Chigusa Y, Kawasaki K, Mandai M, Yamada AS. New era of trophoblast research: integrating morphological and molecular approaches. Hum Reprod Update 2020; 26:611-633. [PMID: 32728695 DOI: 10.1093/humupd/dmaa020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/24/2020] [Accepted: 04/20/2020] [Indexed: 12/27/2022] Open
Abstract
Many pregnancy complications are the result of dysfunction in the placenta. The pathogenic mechanisms of placenta-mediated pregnancy complications, however, are unclear. Abnormal placental development in these conditions begins in the first trimester, but no symptoms are observed during this period. To elucidate effective preventative treatments, understanding the differentiation and development of human placenta is crucial. This review elucidates the uniqueness of the human placenta in early development from the aspect of structural characteristics and molecular markers. We summarise the morphogenesis of human placenta based on human specimens and then compile molecular markers that have been clarified by immunostaining and RNA-sequencing data across species. Relevant studies were identified using the PubMed database and Google Scholar search engines up to March 2020. All articles were independently screened for eligibility by the authors based on titles and abstracts. In particular, the authors carefully examined literature on human placentation. This review integrates the development of human placentation from morphological approaches in comparison with other species and provides new insights into trophoblast molecular markers. The morphological features of human early placentation are described in Carnegie stages (CS), from CS3 (floating blastocyst) to CS9 (emerging point of tertiary villi). Molecular markers are described for each type of trophoblast involved in human placental development. We summarise the character of human trophoblast cell lines and explain how long-term culture system of human cytotrophoblast, both monolayer and spheroid, established in recent studies allows for the generation of human trophoblast cell lines. Due to differences in developmental features among species, it is desirable to understand early placentation in humans. In addition, reliable molecular markers that reflect normal human trophoblast are needed to advance trophoblast research. In the clinical setting, these markers can be valuable means for morphologically and functionally assessing placenta-mediated pregnancy complications and provide early prediction and management of these diseases.
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Affiliation(s)
- Shingo Io
- Department of Life Science Frontiers, Center for iPS Cell Research & Application, Kyoto University, Kyoto, Japan.,Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Eiji Kondoh
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshitsugu Chigusa
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kaoru Kawasaki
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaki Mandai
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - And Shigehito Yamada
- Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Congenital Anomaly Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan
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21
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Gorczyca L, Du J, Bircsak KM, Wen X, Vetrano AM, Aleksunes LM. Low oxygen tension differentially regulates the expression of placental solute carriers and ABC transporters. FEBS Lett 2020; 595:811-827. [PMID: 32978975 DOI: 10.1002/1873-3468.13937] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/27/2020] [Accepted: 09/03/2020] [Indexed: 01/12/2023]
Abstract
Low oxygen concentration, or hypoxia, is an important physiological regulator of placental function including chemical disposition. Here, we compared the ability of low oxygen tension to alter the expression of solute carriers (SLC) and ABC transporters in two human placental models, namely BeWo cells and term placental explants. We found that exposure to low oxygen concentration differentially regulates transporter expression in BeWo cells, including downregulation of ENT1, OATP4A1, OCTN2, BCRP, and MRP2/3/5, and upregulation of CNT1, OAT4, OATP2B1, SERT, SOAT, and MRP1. Similar upregulation of MRP1 and downregulation of MRP5 and BCRP were observed in explants, whereas uptake transporters were decreased or unchanged. Furthermore, a screening of transcriptional regulators of transporters revealed that hypoxia leads to a decrease in the mRNA levels of aryl hydrocarbon receptor, nuclear factor erythroid 2-related factor 2, and retinoid x receptor alpha in both human placental models. These data suggest that transporter expression is differentially regulated by oxygen concentration across experimental human placental models.
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Affiliation(s)
- Ludwik Gorczyca
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ, USA
| | - Jianyao Du
- China Pharmaceutical University, Nanjing, China
| | - Kristin M Bircsak
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ, USA
| | - Xia Wen
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA
| | - Anna M Vetrano
- Division of Neonatology, Department of Pediatrics, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Rutgers Center for Lipid Research, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ, USA.,Environmental and Occupational Health Sciences Institute, Piscataway, NJ, USA
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22
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MiR-519d-3p in Trophoblastic Cells: Effects, Targets and Transfer to Allogeneic Immune Cells via Extracellular Vesicles. Int J Mol Sci 2020; 21:ijms21103458. [PMID: 32422900 PMCID: PMC7278925 DOI: 10.3390/ijms21103458] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 12/20/2022] Open
Abstract
Members of the placenta-specific miRNA cluster C19MC, including miR-519d, are secreted by fetal trophoblast cells within extracellular vesicles (EVs). Trophoblast-derived EVs can be internalized by the autologous trophoblast and surrounding maternal immune cells, resulting in coordination of cellular responses. The study of functions and targets of placental miRNAs in the donor and recipient cells may contribute to the understanding of the immune tolerance essential in pregnancy. Here, we report that miR-519d-3p levels correlate positively with cell proliferation and negatively with migration in trophoblastic cell lines. Inhibition of miR-519d-3p in JEG-3 cells increases caspase-3 activation and apoptosis. PDCD4 and PTEN are targeted by miR-519d-3p in a cell type-specific manner. Transfection of trophoblastic cell lines with miR-519d mimic results in secretion of EVs containing elevated levels of this miRNA (EVmiR-519d). Autologous cells enhance their proliferation and decrease their migration ability when treated with EVmiR-519d. NK92 cells incorporate EV-delivered miR-519d-3p at higher levels than Jurkat T cells. EVmiR-519d increases the proliferation of Jurkat T cells but decreases that of NK92 cells. Altogether, miR-519d-3p regulates pivotal trophoblast cell functions, can be transferred horizontally via EVs to maternal immune cells and exerts functions therein. Vesicular miRNA transfer from fetal trophoblasts to maternal immune cells may contribute to the immune tolerance in pregnancy.
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23
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Park HR, Elkin ER, Castillo-Castrejon M, Loch-Caruso R. Brominated diphenyl ether-47 differentially regulates cellular migration and invasion in a human first trimester trophoblast cell line. Reprod Toxicol 2020; 93:191-198. [PMID: 32142752 DOI: 10.1016/j.reprotox.2020.02.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 02/06/2020] [Accepted: 02/27/2020] [Indexed: 02/06/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are flame retardant compounds detected in human placenta and linked to adverse pregnancy outcomes. Impaired trophoblast migration and invasion during early pregnancy have been implicated as potential mechanisms of pregnancy disorders. The present study investigated the effect of BDE-47, a prevalent PBDE congener, on cell migration, invasion, and matrix metalloproteinase (MMP) expression in a human first trimester extravillous trophoblast cell line, HTR-8/SVneo. BDE-47 stimulated cell migration in HTR-SV/neo cells while decreasing invasion of cells into Matrigel. In addition, BDE-47 led to differential expression of MMP-1, -2, -3, and -9 at protein and mRNA levels. In summary, BDE-47 differentially regulated cellular migration and invasion with divergent changes in MMP expression in trophoblasts. Because proper regulation of trophoblast migration and invasion is critical for placental development and function, further research is warranted to determine if exposure to PBDEs disrupts trophoblast functions with increased risk for adverse pregnancy outcomes.
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Affiliation(s)
- Hae-Ryung Park
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029 USA.
| | - Elana R Elkin
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029 USA
| | - Marisol Castillo-Castrejon
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029 USA
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029 USA
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24
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Elkin ER, Harris SM, Su AL, Lash LH, Loch-Caruso R. Placenta as a target of trichloroethylene toxicity. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:472-486. [PMID: 32022077 PMCID: PMC7103546 DOI: 10.1039/c9em00537d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Trichloroethylene (TCE) is an industrial solvent and a common environmental contaminant detected in thousands of hazardous waste sites. Risk of exposure is a concern for workers in occupations that use TCE as well as for residents who live near industries that use TCE or who live near TCE-contaminated sites. Although renal, hepatic and carcinogenic effects of TCE have been documented, less is known about TCE impacts on reproductive functions despite epidemiology reports associating maternal TCE exposure with adverse pregnancy outcomes. Toxicological evidence suggests that the placenta mediates at least some of the adverse pregnancy outcomes associated with TCE exposure. Toxicology studies show that the TCE metabolite, S-(1,2-dichlorovinyl)-l-cysteine (DCVC) generates toxic effects such as mitochondrial dysfunction, apoptosis, oxidative stress, and release of prostaglandins and pro-inflammatory cytokines in placental cell lines. Each of these mechanisms of toxicity have significant implications for placental functions and, thus, ultimately the health of mother and developing child. Despite these findings there remain significant gaps in our knowledge about effects of TCE on the placenta, including effects on specific placental cell types and functions as well as sex differences in response to TCE exposure. Due to the critical role that the placenta plays in pregnancy, future research addressing some of these knowledge gaps could lead to significant gains in public health.
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Affiliation(s)
- Elana R Elkin
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI 48109-2029, USA.
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25
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Elkin ER, Bridges D, Harris SM, Loch-Caruso RK. Exposure to Trichloroethylene Metabolite S-(1,2-Dichlorovinyl)-L-cysteine Causes Compensatory Changes to Macronutrient Utilization and Energy Metabolism in Placental HTR-8/SVneo Cells. Chem Res Toxicol 2020; 33:1339-1355. [PMID: 31951115 PMCID: PMC7299793 DOI: 10.1021/acs.chemrestox.9b00356] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
![]()
Trichloroethylene
(TCE) is a widespread environmental contaminant
following decades of use as an industrial solvent, improper disposal,
and remediation challenges. Consequently, TCE exposure continues to
constitute a risk to human health. Despite epidemiological evidence
associating exposure with adverse birth outcomes, the effects of TCE
and its metabolite S-(1, 2-dichlorovinyl)-L-cysteine
(DCVC) on the placenta remain undetermined. Flexible and efficient
macronutrient and energy metabolism pathway utilization is essential
for placental cell physiological adaptability. Because DCVC is known
to compromise cellular energy status and disrupt energy metabolism
in renal proximal tubular cells, this study investigated the effects
of DCVC on cellular energy status and energy metabolism pathways in
placental cells. Human extravillous trophoblast cells, HTR-8/SVneo,
were exposed to 5–20 μM DCVC for 6 or 12 h. After establishing
concentration and exposure duration thresholds for DCVC-induced cytotoxicity,
targeted metabolomics was used to evaluate overall energy status and
metabolite concentrations from energy metabolism pathways. The data
revealed glucose metabolism perturbations including a time-dependent
accumulation of glucose-6-phosphate+frutose-6-phosphate (G6P+F6P)
as well as independent shunting of glucose intermediates that diminished
with time, with modest energy status decline but in the absence of
significant changes in ATP concentrations. Furthermore, metabolic
profiling suggested that DCVC stimulated compensatory utilization
of glycerol, lipid, and amino acid metabolism to provide intermediate
substrates entering downstream in the glycolytic pathway or the tricarboxylic
acid cycle. Lastly, amino acid deprivation increased susceptibility
to DCVC-induced cytotoxicity. Taken together, these results suggest
that DCVC caused metabolic perturbations necessitating adaptations
in macronutrient and energy metabolism pathway utilization to maintain
adequate ATP levels.
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Affiliation(s)
- Elana R Elkin
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109-2029, United States
| | - Dave Bridges
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, Michigan 48109-2029, United States
| | - Sean M Harris
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109-2029, United States
| | - Rita Karen Loch-Caruso
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109-2029, United States
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26
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Abstract
The placenta is essential for normal in utero development in mammals. In humans, defective placental formation underpins common pregnancy disorders such as pre-eclampsia and fetal growth restriction. The great variation in placental types across mammals means that animal models have been of limited use in understanding human placental development. However, new tools for studying human placental development, including 3D organoids, stem cell culture systems and single cell RNA sequencing, have brought new insights into this field. Here, we review the morphological, molecular and functional aspects of human placental formation, with a focus on the defining cell of the placenta - the trophoblast.
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Affiliation(s)
- Margherita Y Turco
- Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK
- Department of Physiology, Neuroscience and Development, University of Cambridge, Cambridge CB2 3EG, UK
| | - Ashley Moffett
- Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK
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27
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Hemberger M, Hanna CW, Dean W. Mechanisms of early placental development in mouse and humans. Nat Rev Genet 2019; 21:27-43. [PMID: 31534202 DOI: 10.1038/s41576-019-0169-4] [Citation(s) in RCA: 249] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2019] [Indexed: 02/08/2023]
Abstract
The importance of the placenta in supporting mammalian development has long been recognized, but our knowledge of the molecular, genetic and epigenetic requirements that underpin normal placentation has remained remarkably under-appreciated. Both the in vivo mouse model and in vitro-derived murine trophoblast stem cells have been invaluable research tools for gaining insights into these aspects of placental development and function, with recent studies starting to reshape our view of how a unique epigenetic environment contributes to trophoblast differentiation and placenta formation. These advances, together with recent successes in deriving human trophoblast stem cells, open up new and exciting prospects in basic and clinical settings that will help deepen our understanding of placental development and associated disorders of pregnancy.
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Affiliation(s)
- Myriam Hemberger
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada. .,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada. .,Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Canada. .,Epigenetics Programme, The Babraham Institute, Babraham Research Campus, Cambridge, UK. .,Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
| | - Courtney W Hanna
- Epigenetics Programme, The Babraham Institute, Babraham Research Campus, Cambridge, UK.,Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Wendy Dean
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada. .,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada. .,Epigenetics Programme, The Babraham Institute, Babraham Research Campus, Cambridge, UK. .,Department of Cell Biology and Anatomy, Cumming School of Medicine, University of Calgary, Calgary, Canada.
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28
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Morales-Prieto DM, Barth E, Murrieta-Coxca JM, Favaro RR, Gutiérrez-Samudio RN, Chaiwangyen W, Ospina-Prieto S, Gruhn B, Schleußner E, Marz M, Markert UR. Identification of miRNAs and associated pathways regulated by Leukemia Inhibitory Factor in trophoblastic cell lines. Placenta 2019; 88:20-27. [PMID: 31586768 DOI: 10.1016/j.placenta.2019.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 08/06/2019] [Accepted: 09/10/2019] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Leukemia Inhibitory Factor (LIF) regulates behavior of trophoblast cells and their interaction with immune and endothelial cells. In vitro, trophoblast cell response to LIF may vary depending on the cell model. Reported differences in the miRNA profile of trophoblastic cells may be responsible for these observations. Therefore, miRNA expression was investigated in four trophoblastic cell lines under LIF stimulation followed by in silico analysis of altered miRNAs and their associated pathways. METHODS Low density TaqMan miRNA assays were used to quantify levels of 762 mature miRNAs under LIF stimulation in three choriocarcinoma-derived (JEG-3, ACH-3P and AC1-M59) and a trophoblast immortalized (HTR-8/SVneo) cell lines. Expression of selected miRNAs was confirmed in primary trophoblast cells and cell lines by qPCR. Targets and associated pathways of the differentially expressed miRNAs were inferred from the miRTarBase followed by a KEGG Pathway Enrichment Analysis. HTR-8/SVneo and JEG-3 cells were transfected with miR-21-mimics and expression of miR-21 targets was assessed by qPCR. RESULTS A similar number of miRNAs changed in each tested cell line upon LIF stimulation, however, low coincidence of individual miRNA species was observed and occurred more often among choriocarcinoma-derived cells (complete data set at http://www.ncbi.nlm.nih.gov/geo/ under GEO accession number GSE130489). Altered miRNAs were categorized into pathways involved in human diseases, cellular processes and signal transduction. Six cascades were identified as significantly enriched, including JAK/STAT and TGFB-SMAD. Upregulation of miR-21-3p was validated in all cell lines and primary cells and STAT3 was confirmed as its target. DISCUSSION Dissimilar miRNA responses may be involved in differences of LIF effects on trophoblastic cell lines.
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Affiliation(s)
| | - Emanuel Barth
- Friedrich-Schiller-University Jena, Faculty of Mathematics and Computer Science, RNA Bioinformatics and High Throughput Analysis, Germany; Leibniz Institute for Age Research, Fritz Lipman Institute (FLI), Beutenbergstrasse 11, 07745, Jena, Germany
| | - Jose Martín Murrieta-Coxca
- Placenta-Labor, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany; Departamento de Inmunología, Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Mexico City, Mexico
| | - Rodolfo R Favaro
- Placenta-Labor, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | | | - Wittaya Chaiwangyen
- Placenta-Labor, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | | | - Bernd Gruhn
- Children's Hospital, Friedrich-Schiller University Jena, Kochstraße 2, 07745, Jena, Germany
| | - Ekkehard Schleußner
- Placenta-Labor, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - Manja Marz
- Friedrich-Schiller-University Jena, Faculty of Mathematics and Computer Science, RNA Bioinformatics and High Throughput Analysis, Germany; Leibniz Institute for Age Research, Fritz Lipman Institute (FLI), Beutenbergstrasse 11, 07745, Jena, Germany; European Virus Bioinformatics Center, Leutragraben 1, 07743, Jena, Germany
| | - Udo R Markert
- Placenta-Labor, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.
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29
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Human placental methylome in the interplay of adverse placental health, environmental exposure, and pregnancy outcome. PLoS Genet 2019; 15:e1008236. [PMID: 31369552 PMCID: PMC6675049 DOI: 10.1371/journal.pgen.1008236] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The placenta is the interface between maternal and fetal circulations, integrating maternal and fetal signals to selectively regulate nutrient, gas, and waste exchange, as well as secrete hormones. In turn, the placenta helps create the in utero environment and control fetal growth and development. The unique epigenetic profile of the human placenta likely reflects its early developmental separation from the fetus proper and its role in mediating maternal–fetal exchange that leaves it open to a range of exogenous exposures in the maternal circulation. In this review, we cover recent advances in DNA methylation in the context of placental function and development, as well as the interaction between the pregnancy and the environment.
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30
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Fry RC, Bangma J, Szilagyi J, Rager JE. Developing novel in vitro methods for the risk assessment of developmental and placental toxicants in the environment. Toxicol Appl Pharmacol 2019; 378:114635. [PMID: 31233757 DOI: 10.1016/j.taap.2019.114635] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 01/12/2023]
Abstract
During pregnancy, the placenta is critical for the regulation of maternal homeostasis and fetal growth and development. Exposures to environmental chemicals during pregnancy can be detrimental to the health of the placenta and therefore adversely impact maternal and fetal health. Though research on placental-derived developmental toxicity is expanding, testing is limited by the resources required for traditional test methods based on whole animal experimentation. Alternative strategies utilizing in vitro methods are well suited to contribute to more efficient screening of chemical toxicity and identification of biological mechanisms underlying toxicity outcomes. This review aims to summarize methods that can be used to evaluate toxicity resulting from exposures during the prenatal period, with a focus on newer in vitro methods centered on placental toxicity. The following key aspects are reviewed: (i) traditional test methods based on animal developmental toxicity testing, (ii) in vitro methods using monocultures and explant models, as well as more recently developed methods, including co-cultures, placenta-on-a-chip, and 3-dimensional (3D) cell models, (iii) endpoints that are commonly measured using in vitro designs, and (iv) the translation of in vitro methods into chemical evaluations and risk assessment applications. We conclude that findings from in vitro placental models can contribute to the screening of potentially hazardous chemicals, elucidation of chemical mechanism of action, incorporation into adverse outcome pathways, estimation of doses eliciting toxicity, derivation of extrapolation factors, and characterization of overall risk of adverse outcomes, representing key components of chemical regulation in the 21st century.
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Affiliation(s)
- Rebecca C Fry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Curriculum in Toxicology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jacqueline Bangma
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - John Szilagyi
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Julia E Rager
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Curriculum in Toxicology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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31
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Apicella C, Ruano CSM, Méhats C, Miralles F, Vaiman D. The Role of Epigenetics in Placental Development and the Etiology of Preeclampsia. Int J Mol Sci 2019; 20:ijms20112837. [PMID: 31212604 PMCID: PMC6600551 DOI: 10.3390/ijms20112837] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/03/2019] [Accepted: 06/03/2019] [Indexed: 12/12/2022] Open
Abstract
In this review, we comprehensively present the function of epigenetic regulations in normal placental development as well as in a prominent disease of placental origin, preeclampsia (PE). We describe current progress concerning the impact of DNA methylation, non-coding RNA (with a special emphasis on long non-coding RNA (lncRNA) and microRNA (miRNA)) and more marginally histone post-translational modifications, in the processes leading to normal and abnormal placental function. We also explore the potential use of epigenetic marks circulating in the maternal blood flow as putative biomarkers able to prognosticate the onset of PE, as well as classifying it according to its severity. The correlation between epigenetic marks and impacts on gene expression is systematically evaluated for the different epigenetic marks analyzed.
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Affiliation(s)
- Clara Apicella
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Camino S M Ruano
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Céline Méhats
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Francisco Miralles
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Daniel Vaiman
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
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Anton L, DeVine A, Polyak E, Olarerin-George A, Brown AG, Falk MJ, Elovitz MA. HIF-1α Stabilization Increases miR-210 Eliciting First Trimester Extravillous Trophoblast Mitochondrial Dysfunction. Front Physiol 2019; 10:699. [PMID: 31263422 PMCID: PMC6590495 DOI: 10.3389/fphys.2019.00699] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/20/2019] [Indexed: 11/27/2022] Open
Abstract
Preeclampsia is associated with first trimester placental dysfunction. miR-210, a small non-coding RNA, is increased in the preeclamptic placenta. The effects of elevated miR-210 on placental function remain unclear. The objectives of this study were to identify targets of miR-210 in first trimester primary extravillous trophoblasts (EVTs) and to investigate functional pathways altered by elevated placental miR-210 during early pregnancy. EVTs isolated from first trimester placentas were exposed to cobalt chloride (CoCl2), a HIF-1α stabilizer and hypoxia mimetic, and miR-210 expression by qPCR, HIF1α protein levels by western blot and cell invasion were assessed. A custom TruSeq RNA array, including all known/predicted miR-210 targets, was run using miR-210 and miR-negative control transfected EVTs. Mitochondrial function was assessed by high resolution respirometry in transfected EVTs. EVTs exposed to CoCl2 showed a dose and time-dependent increase in miR-210 and HIF1α and reductions in cell invasion. The TruSeq array identified 49 altered genes in miR-210 transfected EVTs with 27 genes repressed and 22 enhanced. Three of the top six significantly repressed genes, NDUFA4, SDHD, and ISCU, are associated with mitochondrial function. miR-210 transfected EVTs had decreased maximal, complex II and complex I+II mitochondrial respiration. This study suggests that miR-210 alters first trimester trophoblast function. miR-210 overexpression alters EVT mitochondrial function in early pregnancy. Mitochondrial dysfunction may lead to increased reactive oxygen species, trophoblast cell damage and likely contributes to the pathogenesis of preeclampsia.
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Affiliation(s)
- Lauren Anton
- Maternal and Child Health Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Ann DeVine
- Maternal and Child Health Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Erzsebet Polyak
- Division of Human Genetics, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Anthony Olarerin-George
- Department of Pharmacology, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Amy G Brown
- Maternal and Child Health Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Marni J Falk
- Division of Human Genetics, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Michal A Elovitz
- Maternal and Child Health Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
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Lv S, Wang N, Lv H, Yang J, Liu J, Li WP, Zhang C, Chen ZJ. The Attenuation of Trophoblast Invasion Caused by the Downregulation of EZH2 Is Involved in the Pathogenesis of Human Recurrent Miscarriage. MOLECULAR THERAPY-NUCLEIC ACIDS 2018; 14:377-387. [PMID: 30710891 PMCID: PMC6356049 DOI: 10.1016/j.omtn.2018.12.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 10/28/2018] [Accepted: 12/18/2018] [Indexed: 12/17/2022]
Abstract
Recurrent miscarriage (RM) is currently defined as two or more losses of a clinically established intrauterine pregnancy. Despite years of research, RM continues to be a clinically frustrating challenge for patients and physicians, and its etiology remains poorly understood. Accumulating evidence has suggested that epigenetic modifications are involved in early embryogenesis, and defects in epigenetic patterning contribute to the development of RM. Here, we studied the role of enhancer of zeste homolog 2 (EZH2) in the pathogenesis of RM and found that the EZH2 expression was significantly decreased in the villi from women with RM compared with that in control villi. EZH2 promoted the invasion of trophoblast cells. Moreover, EZH2 could promote epithelial-mesenchymal transition by epigenetically silencing CDX1. Both chromatin immunoprecipitation (ChIP)-PCR and dual-luciferase report assays demonstrated that EZH2 repressed CDX1 transcription via direct binding to its promoter region and then trimethylating Histone3-Lysine27. Furthermore, we discovered that progesterone, which is used extensively in the treatment of miscarriage and RM, increased the expression of EZH2 via the extracellular signaling-regulated kinase (ERK1/2) pathway. These findings revealed that EZH2 may regulate trophoblast invasion as an epigenetic factor, suggesting that EZH2 might be a potential therapeutic target for RM.
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Affiliation(s)
- Shijian Lv
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Na Wang
- Obstetrical Department, Obstetrics and Gynecology Hospital of Fudan University, No. 128, Shenyang Road, Yangpu District, Shanghai 200090, China
| | - Hong Lv
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Jieqiong Yang
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Jianwei Liu
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Wei-Ping Li
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China.
| | - Cong Zhang
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, 88 East Wenhua Road, Ji'nan, Shandong 250014, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China.
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China.
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Lan X, Fu LJ, Hu ZY, Feng Q, Liu XQ, Zhang X, Chen XM, He JL, Wang YX, Ding YB. Methylated oligonucleotide (MON)-induced promoter hypermethylation is associated with repression of CDH1 expression and contributes to the migration and invasion of human trophoblast cell lines. Reprod Fertil Dev 2018; 29:1509-1520. [PMID: 27439778 DOI: 10.1071/rd16031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 06/20/2016] [Indexed: 01/08/2023] Open
Abstract
DNA cytosine-5 methylation plays a vital role in regulating the expression of E-cadherin, which is encoded by the CDH1 gene. In this study, we characterised the DNA methylation and expression pattern of CDH1 in an extravillous trophoblast cell line (HTR-8/SVneo) and two trophoblast cell lines -- JEG-3 and JAR. Promoter hypermethylation with reduced E-cadherin expression in HTR-8/SVneo cells and promoter hypomethylation with increased E-cadherin expression in JEG-3 and JAR cells were observed. Demethylation treatment significantly restored E-cadherin expression, contributing to decreases in the motility and invasiveness of HTR-8/SVneo cells. Sense-methylated oligonucleotides (MONs) labelled with Cy5 and complementary to a region of the human CDH1 promoter were designed, with the cytosines in 5'-cytosine-phosphate-guanine-3' (CpG) dinucleotides being replaced by methylated cytosines. Following MON transfection into JEG-3 cells, the level of CDH1 promoter DNA methylation as well as cell motility and invasiveness were increased and gene expression was significantly repressed. Our results indicate that MON-mediated DNA methylation of the CDH1 promoter and subsequent alterations in gene expression may contribute to trophoblast motility and invasion, suggesting a potential method for controlling the biological function of trophoblasts in vitro through epigenetic modification.
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Affiliation(s)
- Xi Lan
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Li-Juan Fu
- School of Traditional Chinese Medicine, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Zhuo-Ying Hu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Rd, Chongqing, 400016, P.R. China
| | - Qian Feng
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Xue-Qing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Xue Zhang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Xue-Mei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Jun-Lin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Ying-Xiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
| | - Yu-Bin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No.1 Yixueyuan Rd, Chongqing, 400016, P.R. China
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Clabault H, Flipo D, Guibourdenche J, Fournier T, Sanderson JT, Vaillancourt C. Effects of selective serotonin-reuptake inhibitors (SSRIs) on human villous trophoblasts syncytialization. Toxicol Appl Pharmacol 2018; 349:8-20. [PMID: 29679653 DOI: 10.1016/j.taap.2018.04.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/27/2018] [Accepted: 04/14/2018] [Indexed: 12/19/2022]
Abstract
Selective serotonin-reuptake inhibitors (SSRIs) are the most commonly prescribed antidepressants during pregnancy. The human placenta is a highly specialized organ supporting normal growth and development of the fetus. Therefore, this study aims to analyze the effects of SSRIs on villous cytotrophoblasts cells, using BeWo cells and human placental trophoblast cells in primary culture. The SSRIs fluoxetine and its metabolite norfluoxetine, sertraline and venlafaxine did not affect BeWo cell proliferation and viability, nor the percentage of M30-positive (apoptotic) primary trophoblast cells. None of the SSRIs affected basal or forskolin-stimulated BeWo cell fusion, whereas sertraline and venlafaxine increased the fusion of primary villous trophoblasts. Sertraline and venlafaxine also modified human chorionic gonadotropin beta (β-hCG) secretion by BeWo cells, whereas none of the SSRIs affected β-hCG secretion in primary trophoblasts. Norfluoxetine increased CGB (chorionic gonadotropin beta) and GJA1 (gap junction protein alpha 1) levels of gene expression (biomarkers of syncytialization) in BeWo cells, whereas in primary trophoblasts none of the SSRIs tested affected the expression of these genes. This study shows that SSRIs affect villous trophoblast syncytialization in a structure- and concentration-dependent manner and suggests that certain SSRIs may compromise placental health. In addition, it highlights the importance of using primary trophoblast cells instead of "trophoblast -like" cell lines to assess the effects of medications on human villous trophoblast function.
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Affiliation(s)
- Hélène Clabault
- INRS-Institut Armand-Frappier, 531 blvd des Prairies, Laval, QC, H7V 1B7, Canada; BioMed Research Centre, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; Center for Interdisciplinary Research on Well-Being, Health, Society and Environment, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada.
| | - Denis Flipo
- BioMed Research Centre, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada.
| | - Jean Guibourdenche
- INSERM, UMR-S1139, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris F-75006, France; Service d'hormonologie Centre Hospitalier, Universitaire Cochin Broca Hôtel Dieu, Assistance Publique-Hôpital de Paris, Paris F-75014, France.
| | - Thierry Fournier
- INSERM, UMR-S1139, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris F-75006, France; Fondation PremUp, Paris F-75006, France.
| | - J Thomas Sanderson
- INRS-Institut Armand-Frappier, 531 blvd des Prairies, Laval, QC, H7V 1B7, Canada.
| | - Cathy Vaillancourt
- INRS-Institut Armand-Frappier, 531 blvd des Prairies, Laval, QC, H7V 1B7, Canada; BioMed Research Centre, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; Center for Interdisciplinary Research on Well-Being, Health, Society and Environment, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada.
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36
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Hulme CH, Stevens A, Dunn W, Heazell AEP, Hollywood K, Begley P, Westwood M, Myers JE. Identification of the functional pathways altered by placental cell exposure to high glucose: lessons from the transcript and metabolite interactome. Sci Rep 2018; 8:5270. [PMID: 29588451 PMCID: PMC5869594 DOI: 10.1038/s41598-018-22535-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 02/19/2018] [Indexed: 02/06/2023] Open
Abstract
The specific consequences of hyperglycaemia on placental metabolism and function are incompletely understood but likely contribute to poor pregnancy outcomes associated with diabetes mellitus (DM). This study aimed to identify the functional biochemical pathways perturbed by placental exposure to high glucose levels through integrative analysis of the trophoblast transcriptome and metabolome. The human trophoblast cell line, BeWo, was cultured in 5 or 25 mM glucose, as a model of the placenta in DM. Transcriptomic analysis using microarrays, demonstrated 5632 differentially expressed gene transcripts (≥± 1.3 fold change (FC)) following exposure to high glucose. These genes were used to generate interactome models of transcript response using BioGRID (non-inferred network: 2500 nodes (genes) and 10541 protein-protein interactions). Ultra performance-liquid chromatography-mass spectrometry (MS) and gas chromatography-MS analysis of intracellular extracts and culture medium were used to assess the response of metabolite profiles to high glucose concentration. The interactions of altered genes and metabolites were assessed using the MetScape interactome database, resulting in an integrated model of systemic transcriptome (2969 genes) and metabolome (41 metabolites) response within placental cells exposed to high glucose. The functional pathways which demonstrated significant change in response to high glucose included fatty acid β-oxidation, phospholipid metabolism and phosphatidylinositol phosphate signalling.
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Affiliation(s)
- C H Hulme
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK
| | - A Stevens
- Division of Developmental Biology & Medicine, Faculty of Biology, Medicine & Health University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK
| | - W Dunn
- Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, M13 9WL, UK.,School of Biosciences, Phenome Centre Birmingham and Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, B15 2TT, UK
| | - A E P Heazell
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK
| | - K Hollywood
- Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, M13 9WL, UK.,Manchester Institute of Biotechnology and School of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - P Begley
- Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, M13 9WL, UK
| | - M Westwood
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK
| | - J E Myers
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK. .,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK.
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37
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Elkin ER, Harris SM, Loch-Caruso R. Trichloroethylene metabolite S-(1,2-dichlorovinyl)-l-cysteine induces lipid peroxidation-associated apoptosis via the intrinsic and extrinsic apoptosis pathways in a first-trimester placental cell line. Toxicol Appl Pharmacol 2018; 338:30-42. [PMID: 29129777 PMCID: PMC5741094 DOI: 10.1016/j.taap.2017.11.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 11/07/2017] [Accepted: 11/08/2017] [Indexed: 12/31/2022]
Abstract
Trichloroethylene (TCE), a prevalent environmental contaminant, is a potent renal and hepatic toxicant through metabolites such as S-(1, 2-dichlorovinyl)-l-cysteine (DCVC). However, effects of TCE on other target organs such as the placenta have been minimally explored. Because elevated apoptosis and lipid peroxidation in placenta have been observed in pregnancy morbidities involving poor placentation, we evaluated the effects of DCVC exposure on apoptosis and lipid peroxidation in a human extravillous trophoblast cell line, HTR-8/SVneo. We exposed the cells in vitro to 10-100μM DCVC for various time points up to 24h. Following exposure, we measured apoptosis using flow cytometry, caspase activity using luminescence assays, gene expression using qRT-PCR, and lipid peroxidation using a malondialdehyde quantification assay. DCVC significantly increased apoptosis in time- and concentration-dependent manners (p<0.05). DCVC also significantly stimulated caspase 3, 7, 8 and 9 activities after 12h (p<0.05), suggesting that DCVC stimulates the activation of both the intrinsic and extrinsic apoptotic signaling pathways simultaneously. Pre-treatment with the tBID inhibitor Bl-6C9 partially reduced DCVC-stimulated caspase 3 and 7 activity, signifying crosstalk between the two pathways. Additionally, DCVC treatment increased lipid peroxidation in a concentration-dependent manner. Co-treatment with the antioxidant peroxyl radical scavenger (±)-α-tocopherol attenuated caspase 3 and 7 activity, suggesting that lipid peroxidation mediates DCVC-induced apoptosis in extravillous trophoblasts. Our findings suggest that DCVC-induced apoptosis and lipid peroxidation in extravillous trophoblasts could contribute to poor placentation if similar effects occur in vivo in response to TCE exposure, indicating that further studies into this mechanism are warranted.
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Affiliation(s)
- Elana R Elkin
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029, USA.
| | - Sean M Harris
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029, USA.
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029, USA.
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Bolnick AD, Bolnick JM, Kohan-Ghadr HR, Kilburn BA, Hertz M, Dai J, Drewlo S, Armant DR. Nifedipine Prevents Apoptosis of Alcohol-Exposed First-Trimester Trophoblast Cells. Alcohol Clin Exp Res 2017; 42:53-60. [PMID: 29048755 DOI: 10.1111/acer.13534] [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] [Received: 05/13/2017] [Accepted: 10/12/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Maternal alcohol abuse leading to fetal alcohol spectrum disorder (FASD) includes fetal growth restriction (FGR). Ethanol (EtOH) induces apoptosis of human placental trophoblast cells, possibly disrupting placentation and contributing to FGR in FASD. EtOH facilitates apoptosis in several embryonic tissues, including human trophoblasts, by raising intracellular Ca2+ . We previously found that acute EtOH exposure increases trophoblast apoptosis due to signaling from both intracellular and extracellular Ca2+ . Therefore, nifedipine, a Ca2+ channel blocker that is commonly administered to treat preeclampsia and preterm labor, was evaluated for cytoprotective properties in trophoblast cells exposed to alcohol. METHODS Human first-trimester chorionic villous explants and the human trophoblast cell line HTR-8/SVneo (HTR) were pretreated with 12.5 to 50 nM of the Ca2+ channel blocker nifedipine for 1 hour before exposure to 50 mM EtOH for an additional hour. Intracellular Ca2+ concentrations were monitored in real time by epifluorescence microscopy, using fluo-4-AM. Apoptosis was assessed by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL), accumulation of cytoplasmic cytochrome c, and cleavage rates of caspase 3 and caspase 9. RESULTS The increase in intracellular Ca2+ upon exposure to EtOH in both villous explants and HTR cells was completely blocked (p < 0.05) when pretreated with nifedipine, accompanied by inhibition of EtOH-induced release of cytochrome c, caspase activities, and TUNEL. CONCLUSIONS This study indicates that nifedipine can interrupt the apoptotic pathway downstream of EtOH exposure and could provide a novel strategy for future interventions in women with fetuses at risk for FASD.
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Affiliation(s)
- Alan D Bolnick
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Jay M Bolnick
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Hamid-Reza Kohan-Ghadr
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Brian A Kilburn
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Michael Hertz
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Jing Dai
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Sascha Drewlo
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - D Randall Armant
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan.,Anatomy& Cell Biology, Wayne State University School of Medicine, Detroit, Michigan
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39
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Waters SA, Livernois AM, Patel H, O’Meally D, Craig JM, Marshall Graves JA, Suter CM, Waters PD. Landscape of DNA Methylation on the Marsupial X. Mol Biol Evol 2017; 35:431-439. [DOI: 10.1093/molbev/msx297] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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40
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Van Twisk D, Murphy SP, Thakar J. Optimized logic rules reveal interferon-γ-induced modes regulated by histone deacetylases and protein tyrosine phosphatases. Immunology 2017; 151:71-80. [PMID: 28054346 DOI: 10.1111/imm.12707] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/16/2016] [Accepted: 11/28/2016] [Indexed: 12/17/2022] Open
Abstract
The pro-inflammatory cytokine interferon-γ (IFN-γ) is critical for activating innate and adaptive immunity against tumours and intracellular pathogens. Interferon-γ is secreted at the fetal-maternal interface in pregnant women and mice. The outer layer of the placenta in contact with maternal blood is composed of semi-allogeneic trophoblast cells, which constitute the fetal component of the fetal-maternal interface. The simultaneous presence of pro-inflammatory IFN-γ and trophoblast cells at the fetal-maternal interface appears to represent an immunological paradox, for trophoblastic responses to IFN-γ could potentially lead to activation of maternal immunity and subsequent attack of the placenta. However, our previous studies demonstrate that IFN-γ responsive gene (IRG) expression is negatively regulated in human and mouse trophoblast cells. In human cytotrophoblast and trophoblast-derived choriocarcinoma cells, janus kinase signalling is blocked by protein tyrosine phosphatases (PTPs), whereas in mouse trophoblast, histone deacetylases (HDACs) inhibit IRG expression. Here, we used genome-wide transcriptional profiling to investigate the collective roles of PTPs and HDACs on regulation of IRG expression in human choriocarcinoma cells. Logic-rules were optimized to derive regulatory modes governing gene expression patterns observed upon different combinations of treatment with PTP and HDAC inhibitors. The results demonstrate that IRGs can be divided into several categories in human choriocarcinoma cells, each of which is subject to distinct mechanisms of repression. Hence, the regulatory modes identified in this study suggest that human trophoblast and choriocarcinoma cells may evade the potentially deleterious consequences of exposure to IFN-γ by using several overlapping mechanisms to block IRG expression.
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Affiliation(s)
- Daniel Van Twisk
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY, USA
| | - Shawn P Murphy
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY, USA.,Department of Obstetrics and Gynecology, University of Rochester, Rochester, NY, USA
| | - Juilee Thakar
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY, USA.,Biostatistics and Computational Biology, University of Rochester, Rochester, NY, USA
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Lee CQE, Gardner L, Turco M, Zhao N, Murray MJ, Coleman N, Rossant J, Hemberger M, Moffett A. What Is Trophoblast? A Combination of Criteria Define Human First-Trimester Trophoblast. Stem Cell Reports 2016; 6:257-72. [PMID: 26862703 PMCID: PMC4750161 DOI: 10.1016/j.stemcr.2016.01.006] [Citation(s) in RCA: 189] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 01/08/2016] [Accepted: 01/11/2016] [Indexed: 12/15/2022] Open
Abstract
Controversy surrounds reports describing the derivation of human trophoblast cells from placentas and embryonic stem cells (ESC), partly due to the difficulty in identifying markers that define cells as belonging to the trophoblast lineage. We have selected criteria that are characteristic of primary first-trimester trophoblast: a set of protein markers, HLA class I profile, methylation of ELF5, and expression of microRNAs (miRNAs) from the chromosome 19 miRNA cluster (C19MC). We tested these criteria on cells previously reported to show some phenotypic characteristics of trophoblast: bone morphogenetic protein (BMP)-treated human ESC and 2102Ep, an embryonal carcinoma cell line. Both cell types only show some, but not all, of the four trophoblast criteria. Thus, BMP-treated human ESC have not fully differentiated to trophoblast. Our study identifies a robust panel, including both protein and non-protein-coding markers that, in combination, can be used to reliably define cells as characteristic of early trophoblast.
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Affiliation(s)
- Cheryl Q E Lee
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Program in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto M5G 0A4, Canada.
| | - Lucy Gardner
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK
| | - Margherita Turco
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK
| | - Nancy Zhao
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK
| | - Matthew J Murray
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK
| | - Nicholas Coleman
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK
| | - Janet Rossant
- Program in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto M5G 0A4, Canada; Department of Molecular Genetics, University of Toronto, Toronto M5G 0A4, Canada
| | - Myriam Hemberger
- Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Epigenetics Programme, The Babraham Institute, Cambridge CB22 3AT, UK
| | - Ashley Moffett
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK.
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Hassan I, Kumar AM, Park HR, Lash LH, Loch-Caruso R. Reactive Oxygen Stimulation of Interleukin-6 Release in the Human Trophoblast Cell Line HTR-8/SVneo by the Trichlorethylene Metabolite S-(1,2-Dichloro)-l-Cysteine. Biol Reprod 2016; 95:66. [PMID: 27488030 PMCID: PMC5394980 DOI: 10.1095/biolreprod.116.139261] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 03/21/2016] [Accepted: 07/26/2016] [Indexed: 01/18/2023] Open
Abstract
Trichloroethylene (TCE) is a common environmental pollutant associated with adverse reproductive outcomes in humans. TCE intoxication occurs primarily through its biotransformation to bioactive metabolites, including S-(1,2-dichlorovinyl)-l-cysteine (DCVC). TCE induces oxidative stress and inflammation in the liver and kidney. Although the placenta is capable of xenobiotic metabolism and oxidative stress and inflammation in placenta have been associated with adverse pregnancy outcomes, TCE toxicity in the placenta remains poorly understood. We determined the effects of DCVC by using the human extravillous trophoblast cell line HTR-8/SVneo. Exposure to 10 and 20 μM DCVC for 10 h increased reactive oxygen species (ROS) as measured by carboxydichlorofluorescein fluorescence. Moreover, 10 and 20 μM DCVC increased mRNA expression and release of interleukin-6 (IL-6) after 24-h exposure, and these responses were inhibited by the cysteine conjugate beta-lyase inhibitor aminooxyacetic acid and by treatments with antioxidants (alpha-tocopherol and deferoxamine), suggesting that DCVC-stimulated IL-6 release in HTR-8/SVneo cells is dependent on beta-lyase metabolic activation and increased generation of ROS. HTR-8/SVneo cells exhibited decreased mitochondrial membrane potential at 5, 10, and 20 μM DCVC at 5, 10, and 24 h, showing that DCVC induces mitochondrial dysfunction in HTR-8/Svneo cells. The present study demonstrates that DCVC stimulated ROS generation in the human placental cell line HTR-8/SVneo and provides new evidence of mechanistic linkage between DCVC-stimulated ROS and increase in proinflammatory cytokine IL-6. Because abnormal activation of cytokines can disrupt trophoblast functions necessary for placental development and successful pregnancy, follow-up investigations relating these findings to physiologic outcomes are warranted.
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Affiliation(s)
- Iman Hassan
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
| | - Anjana M Kumar
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
| | - Hae-Ryung Park
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
| | - Lawrence H Lash
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
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Sagrillo-Fagundes L, Clabault H, Laurent L, Hudon-Thibeault AA, Salustiano EMA, Fortier M, Bienvenue-Pariseault J, Wong Yen P, Sanderson JT, Vaillancourt C. Human Primary Trophoblast Cell Culture Model to Study the Protective Effects of Melatonin Against Hypoxia/reoxygenation-induced Disruption. J Vis Exp 2016. [PMID: 27500522 DOI: 10.3791/54228] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
This protocol describes how villous cytotrophoblast cells are isolated from placentas at term by successive enzymatic digestions, followed by density centrifugation, media gradient isolation and immunomagnetic purification. As observed in vivo, mononucleated villous cytotrophoblast cells in primary culture differentiate into multinucleated syncytiotrophoblast cells after 72 hr. Compared to normoxia (8% O2), villous cytotrophoblast cells that undergo hypoxia/reoxygenation (0.5% / 8% O2) undergo increased oxidative stress and intrinsic apoptosis, similar to that observed in vivo in pregnancy complications such as preeclampsia, preterm birth, and intrauterine growth restriction. In this context, primary villous trophoblasts cultured under hypoxia/reoxygenation conditions represent a unique experimental system to better understand the mechanisms and signalling pathways that are altered in human placenta and facilitate the search for effective drugs that protect against certain pregnancy disorders. Human villous trophoblasts produce melatonin and express its synthesizing enzymes and receptors. Melatonin has been suggested as a treatment for preeclampsia and intrauterine growth restriction because of its protective antioxidant effects. In the primary villous cytotrophoblast cell model described in this paper, melatonin has no effect on trophoblast cells in normoxic state but restores the redox balance of syncytiotrophoblast cells disrupted by hypoxia/reoxygenation. Thus, human villous trophoblast cells in primary culture are an excellent approach to study the mechanisms behind the protective effects of melatonin on placental function during hypoxia/reoxygenation.
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Bianco-Miotto T, Mayne BT, Buckberry S, Breen J, Rodriguez Lopez CM, Roberts CT. Recent progress towards understanding the role of DNA methylation in human placental development. Reproduction 2016; 152:R23-30. [PMID: 27026712 PMCID: PMC5064761 DOI: 10.1530/rep-16-0014] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 03/29/2016] [Indexed: 12/20/2022]
Abstract
Epigenetic modifications, and particularly DNA methylation, have been studied in many tissues, both healthy and diseased, and across numerous developmental stages. The placenta is the only organ that has a transient life of 9 months and undergoes rapid growth and dynamic structural and functional changes across gestation. Additionally, the placenta is unique because although developing within the mother, its genome is identical to that of the foetus. Given these distinctive characteristics, it is not surprising that the epigenetic landscape affecting placental gene expression may be different to that in other healthy tissues. However, the role of epigenetic modifications, and particularly DNA methylation, in placental development remains largely unknown. Of particular interest is the fact that the placenta is the most hypomethylated human tissue and is characterized by the presence of large partially methylated domains (PMDs) containing silenced genes. Moreover, how and why the placenta is hypomethylated and what role DNA methylation plays in regulating placental gene expression across gestation are poorly understood. We review genome-wide DNA methylation studies in the human placenta and highlight that the different cell types that make up the placenta have very different DNA methylation profiles. Summarizing studies on DNA methylation in the placenta and its relationship with pregnancy complications are difficult due to the limited number of studies available for comparison. To understand the key steps in placental development and hence what may be perturbed in pregnancy complications requires large-scale genome-wide DNA methylation studies coupled with transcriptome analyses.
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Affiliation(s)
- Tina Bianco-Miotto
- School of Agriculture, Food and WineUniversity of Adelaide, Adelaide, South Australia, Australia Robinson Research InstituteUniversity of Adelaide, Adelaide, South Australia, Australia
| | - Benjamin T Mayne
- Robinson Research InstituteUniversity of Adelaide, Adelaide, South Australia, Australia School of MedicineUniversity of Adelaide, Adelaide, South Australia, Australia
| | - Sam Buckberry
- Harry Perkins Institute of Medical ResearchThe University of Western Australia, Crawley, Western Australia, Australia Plant Energy BiologyARC Centre of Excellence, The University of Western Australia, Crawley, Western Australia, Australia
| | - James Breen
- Robinson Research InstituteUniversity of Adelaide, Adelaide, South Australia, Australia Bioinformatics HubUniversity of Adelaide, Adelaide, South Australia, Australia
| | - Carlos M Rodriguez Lopez
- School of Agriculture, Food and WineUniversity of Adelaide, Adelaide, South Australia, Australia
| | - Claire T Roberts
- Robinson Research InstituteUniversity of Adelaide, Adelaide, South Australia, Australia School of MedicineUniversity of Adelaide, Adelaide, South Australia, Australia
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Bircsak KM, Gupta V, Yuen PYS, Gorczyca L, Weinberger BI, Vetrano AM, Aleksunes LM. Genetic and Dietary Regulation of Glyburide Efflux by the Human Placental Breast Cancer Resistance Protein Transporter. J Pharmacol Exp Ther 2016; 357:103-13. [PMID: 26850786 DOI: 10.1124/jpet.115.230185] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/02/2016] [Indexed: 12/16/2022] Open
Abstract
Glyburide is frequently used to treat gestational diabetes owing to its low fetal accumulation resulting from placental efflux by the breast cancer resistance protein (BCRP)/ABCG2 transporter. Here we sought to determine how exposure to the dietary phytoestrogen genistein and expression of a loss-of-function polymorphism in the ABCG2 gene (C421A) impacted the transport of glyburide by BCRP using stably transfected human embryonic kidney 293 (HEK) cells, human placental choriocarcinoma BeWo cells, and human placental explants. Genistein competitively inhibited the BCRP-mediated transport of (3)H-glyburide in both wild-type (WT) and C421A-BCRP HEK-expressing cells, with greater accumulation of (3)H-glyburide in cells expressing the C421A variant. In BeWo cells, exposure to genistein for 60 minutes increased the accumulation of (3)H-glyburide 30%-70% at concentrations relevant to dietary exposure (IC50 ∼180 nM). Continuous exposure of BeWo cells to genistein for 48 hours reduced the expression of BCRP mRNA and protein by up to 40%, which impaired BCRP transport activity. Pharmacologic antagonism of the estrogen receptor attenuated the genistein-mediated downregulation of BCRP expression, suggesting that phytoestrogens may reduce BCRP levels through this hormone receptor pathway in BeWo cells. Interestingly, genistein treatment for 48 hours did not alter BCRP protein expression in explants dissected from healthy term placentas. These data suggest that whereas genistein can act as a competitive inhibitor of BCRP-mediated transport, its ability to downregulate placental BCRP expression may only occur in choriocarcinoma cells. Overall, this research provides important mechanistic data regarding how the environment (dietary genistein) and a frequent genetic variant (ABCG2, C421A) may alter the maternal-fetal disposition of glyburide.
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Affiliation(s)
- Kristin M Bircsak
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., L.M.A., L.G.), and Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey (L.M.A.), Piscataway, New Jersey; Departments of Obstetrics and Gynecology (V.G.) and Pediatrics (P.Y.S.Y., A.M.V.), Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey; Hofstra North Shore-LIJ School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.)
| | - Vivek Gupta
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., L.M.A., L.G.), and Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey (L.M.A.), Piscataway, New Jersey; Departments of Obstetrics and Gynecology (V.G.) and Pediatrics (P.Y.S.Y., A.M.V.), Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey; Hofstra North Shore-LIJ School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.)
| | - Poi Yu Sofia Yuen
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., L.M.A., L.G.), and Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey (L.M.A.), Piscataway, New Jersey; Departments of Obstetrics and Gynecology (V.G.) and Pediatrics (P.Y.S.Y., A.M.V.), Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey; Hofstra North Shore-LIJ School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.)
| | - Ludwik Gorczyca
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., L.M.A., L.G.), and Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey (L.M.A.), Piscataway, New Jersey; Departments of Obstetrics and Gynecology (V.G.) and Pediatrics (P.Y.S.Y., A.M.V.), Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey; Hofstra North Shore-LIJ School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.)
| | - Barry I Weinberger
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., L.M.A., L.G.), and Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey (L.M.A.), Piscataway, New Jersey; Departments of Obstetrics and Gynecology (V.G.) and Pediatrics (P.Y.S.Y., A.M.V.), Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey; Hofstra North Shore-LIJ School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.)
| | - Anna M Vetrano
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., L.M.A., L.G.), and Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey (L.M.A.), Piscataway, New Jersey; Departments of Obstetrics and Gynecology (V.G.) and Pediatrics (P.Y.S.Y., A.M.V.), Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey; Hofstra North Shore-LIJ School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.)
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., L.M.A., L.G.), and Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey (L.M.A.), Piscataway, New Jersey; Departments of Obstetrics and Gynecology (V.G.) and Pediatrics (P.Y.S.Y., A.M.V.), Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey; Hofstra North Shore-LIJ School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.)
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Gierman LM, Stødle GS, Tangerås LH, Austdal M, Olsen GD, Follestad T, Skei B, Rian K, Gundersen AS, Austgulen R, Iversen AC. Toll-like receptor profiling of seven trophoblast cell lines warrants caution for translation to primary trophoblasts. Placenta 2015; 36:1246-53. [PMID: 26386649 DOI: 10.1016/j.placenta.2015.09.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/04/2015] [Accepted: 09/07/2015] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Excessive placental inflammation is associated with pregnancy complications. Toll-like receptors (TLRs) are sensors for danger signals from infections and damaged tissue and initiate inflammation. Trophoblasts in the placenta broadly express TLRs. Trophoblast cell lines are used as surrogates for primary trophoblasts for in vitro studies, but the inflammatory translatability of trophoblast cell lines warrants examination. We aimed to assess TLR1-10 gene expression and activation in seven trophoblast cell lines and compare this to primary trophoblasts. METHODS The five choriocarcinoma trophoblast cell lines BeWo, JAR, JEG-3, AC1M-32 and ACH-3P, and the two SV40 transfected trophoblast cell lines HTR-8/SVneo and SGHPL-5 were included and compared to primary first trimester trophoblasts (n = 6). TLR1-10 gene expression was analyzed by RT-qPCR. Cells were stimulated by specific TLR1-9 ligands for 24 h and cytokine release was measured by a 10-plex immunoassay. RESULTS All choriocarcinoma cell lines demonstrated broad TLR gene expression, but lacked functional cytokine response to TLR ligand activation. In contrast, SV40 transfected cell lines showed restricted TLR gene expression, but SGHPL-5 cells displayed significantly increased levels of interleukin (IL)-6, IL-8, IL-12 and vascular endothelial growth factor A after TLR3 and/or TLR4 activation (P < 0.01), while TLR2 activation increased IL-6 and IL-8 levels (P < 0.05). HTR8/SVneo cells responded to TLR3 activation by increased IL-6 and interferon (IFN)-γ (P < 0.05). The SGHPL-5 TLR profile most closely resembled primary trophoblast. DISCUSSION The characterized trophoblast cell line TLR profiles serve as a reference and warrant caution when selecting trophoblast cell lines as in vitro models for immune responses in primary trophoblasts.
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Affiliation(s)
- L M Gierman
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - G S Stødle
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway; St. Olavs Hospital, Trondheim University Hospital, Norway
| | - L H Tangerås
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway; St. Olavs Hospital, Trondheim University Hospital, Norway
| | - M Austdal
- St. Olavs Hospital, Trondheim University Hospital, Norway; Department of Circulation and Medical Imaging, NTNU, Trondheim, Norway
| | - G D Olsen
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - T Follestad
- Department of Public Health and General Practice, NTNU, Trondheim, Norway
| | - B Skei
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - K Rian
- Department of Laboratory Medicine, Children's and Women's Health, NTNU, Trondheim, Norway
| | - A S Gundersen
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - R Austgulen
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - A C Iversen
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
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Protective effect of (±)α-tocopherol on brominated diphenyl ether-47-stimulated prostaglandin pathways in human extravillous trophoblasts in vitro. Toxicol In Vitro 2015; 29:1309-18. [PMID: 26026498 DOI: 10.1016/j.tiv.2015.05.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 05/09/2015] [Accepted: 05/19/2015] [Indexed: 12/21/2022]
Abstract
Brominated diphenyl ether (BDE)-47 is a prevalent flame retardant chemical found in human tissues and is linked to adverse pregnancy outcomes in humans. Because dysregulation of the prostaglandin pathway is implicated in adverse pregnancy outcomes, the present study investigates BDE-47 induction of prostaglandin synthesis in a human extravillous trophoblast cell line, HTR-8/SVneo, examining the hypothesis that BDE-47 increases generation of reactive oxygen species (ROS) to stimulate the prostaglandin response. Treatment with 20 μM BDE-47 significantly increased mRNA expression of prostaglandin-endoperoxide synthase 2 (PTGS2) at 4, 12 and 24 h, and 24-h treatment significantly increased cyclooxygenase (COX)-2 cellular protein expression and prostaglandin E2 (PGE2) concentration in culture medium. The BDE-47-stimulated PGE2 release was inhibited by the COX inhibitors indomethacin and NS398, implicating COX activity. Exposure to 20 μM BDE-47 significantly increased ROS generation as measured by carboxydichlorofluorescein fluorescence, and this response was blocked by cotreatment with the peroxyl radical scavenger (±)-α-tocopherol. (±)-α-Tocopherol cotreatment suppressed BDE-47-stimulated increases of PGE2 release without significant effects on COX-2 mRNA and protein expression, implicating a role for ROS in post-translational regulation of COX activity. Because prostaglandins regulate trophoblast functions necessary for placentation and pregnancy, further investigation is warranted of BDE-47 impacts on trophoblast responses.
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48
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Chen B, Zaveri PG, Longtine MS, Nelson DM. N-myc downstream-regulated gene 1 (NDRG1) mediates pomegranate juice protection from apoptosis in hypoxic BeWo cells but not in primary human trophoblasts. Placenta 2015; 36:847-53. [PMID: 26028238 DOI: 10.1016/j.placenta.2015.05.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/09/2015] [Accepted: 05/07/2015] [Indexed: 02/07/2023]
Abstract
INTRODUCTION N-Myc downstream-regulated gene 1 (NDRG1) expression is increased in placentas of human pregnancies with intrauterine growth restriction and in hypoxic cultured primary trophoblasts. We previously showed that elevated NDRG1 decreases trophoblast apoptosis induced by hypoxia. Separately, we found that pomegranate juice (PJ) decreases cell death induced by hypoxia in trophoblasts. Here, we test the hypothesis that PJ protects trophoblasts from hypoxia-induced apoptosis by modulating NDRG1 expression. METHODS Quantitative rtPCR was used to investigate the effects of PJ treatment on mRNA levels of 22 candidate genes involved in apoptosis, oxidative stress, and differentiation in trophoblasts. Western blotting and immunofluorescence were used to analyze NDRG1 protein levels. siRNA-mediated NDRG1 knockdown was used to investigate the role of NDRG1 in response to PJ in hypoxic BeWo choriocarcinoma cells and hypoxic cultured primary human trophoblasts. RESULTS The mRNA levels of eight genes were altered, with NDRG1 showing the largest response to PJ and thus, we pursued the role of NDRG1 here. PJ significantly increased NDRG1 protein expression in primary trophoblasts and in BeWo cells. Knockdown of NDRG1 in hypoxic BeWo cells in the presence of PJ yielded increased apoptosis. In contrast, knockdown of NDRG1 in hypoxic primary trophoblasts in the presence of PJ did not increase apoptosis. DISCUSSION We conclude that the PJ-mediated decrease in cell death in hypoxia is partially mediated by NDRG1 in BeWo cells but not in primary trophoblasts. The disparate effects of NDRG1 between BeWo cells and primary trophoblasts indicate caution is required when extrapolating from results obtained with cell lines to primary trophoblasts.
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Affiliation(s)
- B Chen
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, USA.
| | - P G Zaveri
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - M S Longtine
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, USA
| | - D M Nelson
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, USA
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49
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Pan X, Bowman M, Scott RJ, Fitter J, Nicholson RC, Smith R, Zakar T. Methylation of the Corticotropin Releasing Hormone Gene Promoter in BeWo Cells: Relationship to Gene Activity. Int J Endocrinol 2015; 2015:861302. [PMID: 26457081 PMCID: PMC4589633 DOI: 10.1155/2015/861302] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/21/2015] [Accepted: 09/01/2015] [Indexed: 02/07/2023] Open
Abstract
Corticotropin releasing hormone (CRH) production by the human placenta increases exponentially as pregnancy advances, and the rate of increase predicts gestational length. CRH gene expression is regulated by cAMP in trophoblasts through a cyclic AMP-response element (CRE), which changes its transcription factor binding properties upon methylation. Here we determined whether methylation of the CRH proximal promoter controls basal and cAMP-stimulated CRH expression in BeWo cells, a well-characterized trophoblastic cell line. We treated the cells with 8-Br-cAMP and the DNA methyltransferase inhibitor 5-aza-2' deoxycytidine (5-AZA-dC) and determined the effects on CRH mRNA level and promoter methylation. Clonal bisulfite sequencing showed partial and allele independent methylation of CpGs in the CRH promoter. CRH mRNA expression and the methylation of a subset of CpGs (including CpG2 in the CRE) increased spontaneously during culture. 8-Br-cAMP stimulated CRH expression without affecting the increase in methylation. 5-AZA-dC decreased methylation and augmented 8-Br-cAMP-stimulated CRH expression, but it blocked the spontaneous increase of CRH mRNA level. We conclude that the CRH promoter is a dynamically and intermediately methylated genomic region in BeWo cells. Promoter methylation did not inhibit CRH gene expression under the conditions employed; rather it determined the contribution of alternative cAMP-independent pathways and cAMP-independent mechanisms to CRH expression control.
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Affiliation(s)
- Xin Pan
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
- Department of Obstetrics and Gynaecology, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Maria Bowman
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Rodney J. Scott
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
- Molecular Medicine, Hunter Area Pathology Service, New Lambton Heights, NSW 2310, Australia
| | - John Fitter
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Richard C. Nicholson
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- John Hunter Hospital, New Lambton Heights, NSW 2310, Australia
| | - Roger Smith
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
- John Hunter Hospital, New Lambton Heights, NSW 2310, Australia
| | - Tamas Zakar
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
- John Hunter Hospital, New Lambton Heights, NSW 2310, Australia
- *Tamas Zakar:
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Battistini F, Flores-Martin J, Olivera M, Genti-Raimondi S, Manzo R. Hyaluronan as drug carrier. The in vitro efficacy and selectivity of Hyaluronan–Doxorubicin complexes to affect the viability of overexpressing CD44 receptor cells. Eur J Pharm Sci 2014; 65:122-9. [DOI: 10.1016/j.ejps.2014.09.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 08/26/2014] [Accepted: 09/08/2014] [Indexed: 10/24/2022]
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