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Deng F, Lei J, Qiu J, Zhao C, Wang X, Li M, Sun M, Zhang M, Gao Q. DNA methylation landscape in pregnancy-induced hypertension: progress and challenges. Reprod Biol Endocrinol 2024; 22:77. [PMID: 38978060 PMCID: PMC11229300 DOI: 10.1186/s12958-024-01248-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 06/24/2024] [Indexed: 07/10/2024] Open
Abstract
Gestational hypertension (PIH), especially pre-eclampsia (PE), is a common complication of pregnancy. This condition poses significant risks to the health of both the mother and the fetus. Emerging evidence suggests that epigenetic modifications, particularly DNA methylation, may play a role in initiating the earliest pathophysiology of PIH. This article describes the relationship between DNA methylation and placental trophoblast function, genes associated with the placental microenvironment, the placental vascular system, and maternal blood and vascular function, abnormalities of umbilical cord blood and vascular function in the onset and progression of PIH, as well as changes in DNA methylation in the progeny of PIH, in terms of maternal, fetal, and offspring. We also explore the latest research on DNA methylation-based early detection, diagnosis and potential therapeutic strategies for PIH. This will enable the field of DNA methylation research to continue to enhance our understanding of the epigenetic regulation of PIH genes and identify potential therapeutic targets.
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Affiliation(s)
- Fengying Deng
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Jiahui Lei
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Junlan Qiu
- Department of Oncology and Hematology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, Jiangsu, 215153, P.R. China
| | - Chenxuan Zhao
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Xietong Wang
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
| | - Min Li
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Miao Sun
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China.
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China.
| | - Meihua Zhang
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China.
| | - Qinqin Gao
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China.
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China.
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Admati I, Skarbianskis N, Hochgerner H, Ophir O, Weiner Z, Yagel S, Solt I, Zeisel A. Two distinct molecular faces of preeclampsia revealed by single-cell transcriptomics. MED 2023; 4:687-709.e7. [PMID: 37572658 DOI: 10.1016/j.medj.2023.07.005] [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: 02/15/2023] [Revised: 06/04/2023] [Accepted: 07/14/2023] [Indexed: 08/14/2023]
Abstract
INTRODUCTION Preeclampsia is a multisystemic, pregnancy-specific disorder united by new-onset hypertension but with considerable variation in clinical manifestation, onset, and severity. For symptoms to regress, delivery of the placenta is required. For symptoms to regress, delivery of the placenta is required, making the placenta central to preeclampsia pathophysiology. To dissect which placental functions were impacted in two forms of preeclampsia, we studied molecular changes across the cell types of the placenta. METHODS We performed a transcriptomic survey of single-cells and single-nuclei on cases of early- and late-onset preeclampsia with gestation-matched controls. FINDINGS Our data revealed massive dysregulation of gene expression in all cell classes that was almost exclusive to early preeclampsia. For example, an important known receptor/ligand imbalance hallmarking angiogenic disfunction, sFLT1/placental growth factor (PGF), was reflected in striking, cell-autonomous dysregulation of FLT1 and PGF transcription in the syncytium in early preeclampsia only. Stromal cells and vasculature echoed an inflamed, stressed, anti-angiogenic environment. Finally, the placental immune niche set the tone for inflammation in early but not late preeclampsia. Here, fetal-origin Hofbauer and maternal-origin TREM2 macrophages were revealed as surprising main actors, while local cells of the adaptive immune system were largely unaffected. Late preeclampsia showed minimal cellular impact on the placenta. CONCLUSIONS Our survey provides systematic molecular evidence for two distinct diseases. We resolved systematic molecular dysregulation to individual cell types with strong implications for definition, early detection, diagnosis, and treatment. FUNDING Funded by the Preeclampsia Foundation through the Peter Joseph Pappas Research Grant.
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Affiliation(s)
- Inbal Admati
- Faculty of Biotechnology and Food Engineering, Technion Israel Institute of Technology, Haifa, Israel
| | - Niv Skarbianskis
- Faculty of Biotechnology and Food Engineering, Technion Israel Institute of Technology, Haifa, Israel
| | - Hannah Hochgerner
- Faculty of Biotechnology and Food Engineering, Technion Israel Institute of Technology, Haifa, Israel
| | - Osnat Ophir
- Faculty of Biotechnology and Food Engineering, Technion Israel Institute of Technology, Haifa, Israel
| | - Zeev Weiner
- Department of Obstetrics and Gynecology, Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
| | - Simcha Yagel
- Division of Obstetrics and Gynecology Hadassah, Hebrew University Medical Centers, Jerusalem, Israel
| | - Ido Solt
- Department of Obstetrics and Gynecology, Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel.
| | - Amit Zeisel
- Faculty of Biotechnology and Food Engineering, Technion Israel Institute of Technology, Haifa, Israel.
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Palei AC, de O Cruz J, Chaguri JL, Peraçoli JC, Romão-Veiga M, Ribeiro-Vasques VR, Cavalli RC, Nunes PR, Luizon MR, Sandrim VC. Circulating levels of tissue inhibitor of metalloproteinase 3, a protein with inhibitory effects on angiogenesis, are increased in pre-eclampsia. Int J Gynaecol Obstet 2023; 161:544-551. [PMID: 36333976 PMCID: PMC10171830 DOI: 10.1002/ijgo.14552] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/24/2022] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To assess and compare circulating tissue inhibitor of metalloproteinase 3 (TIMP-3) concentrations between women with pre-eclampsia and healthy pregnant women. We also aimed to determine the relationships between circulating TIMP-3 and matrix metalloproteinase 2 (MMP-2), MMP-9, TIMP-1, and TIMP-2 concentrations in pre-eclampsia. METHODS A primary case-control study included patients with pre-eclampsia (n = 219) and gestational hypertension (n = 118), healthy pregnant women (n = 214), and non-pregnant women (n = 66), and a replication case-control study included patients with pre-eclampsia (n = 177) and healthy pregnant women (n = 124), all from southeastern Brazil. Plasma TIMP-3, MMP-2, MMP-9, TIMP-1, and TIMP-2 concentrations were assessed using commercially available enzyme-linked immunosorbent assay kits, and the relationships between them were analyzed using Spearman's correlation. RESULTS In our primary study, patients with pre-eclampsia and gestational hypertension exhibited increased TIMP-3 concentrations compared with healthy pregnant women (both P < 0.0001) and non-pregnant women (both P < 0.001). These findings were confirmed in the replication study, showing elevated TIMP-3 concentrations in women with pre-eclampsia versus healthy pregnant women (P < 0.001). We found no difference in TIMP-3 concentrations between early-onset and late-onset pre-eclampsia. Moreover, TIMP-3 concentrations were significantly correlated with plasma concentrations of TIMP-1 (r = 0.2333; P = 0.0086) and MMP-2 (r = 0.2159; P = 0.0156) in pre-eclampsia. CONCLUSIONS Circulating TIMP-3 concentration is increased in women with pre-eclampsia compared with healthy pregnant women, and it is positively correlated with plasma MMP-2 and TIMP-1 concentrations in pre-eclampsia.
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Affiliation(s)
- Ana C Palei
- Department of Surgery, School of Medicine, University of Mississippi Medical Center, Jackson, Mississippi, USA
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Juliana de O Cruz
- Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - João Leandro Chaguri
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (Unesp), Distrito Rubiao Junior, Botucatu, Sao Paulo, Brazil
- Center of Toxicological Assistance (CEATOX), Institute of Biosciences of Botucatu, Universidade Estadual Paulista (Unesp), Campus of Botucatu, São Paulo, Brazil
| | - José Carlos Peraçoli
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University (Unesp), Sao Paulo, Brazil
| | - Mariana Romão-Veiga
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University (Unesp), Sao Paulo, Brazil
| | - Vanessa R Ribeiro-Vasques
- Department of Chemistry and Biological Sciences, Institute of Biosciences of Botucatu, Sao Paulo State University (Unesp), Sao Paulo, Brazil
| | - Ricardo C Cavalli
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, Sao Paulo, Brazil
| | - Priscila R Nunes
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (Unesp), Distrito Rubiao Junior, Botucatu, Sao Paulo, Brazil
| | - Marcelo R Luizon
- Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Valéria C Sandrim
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (Unesp), Distrito Rubiao Junior, Botucatu, Sao Paulo, Brazil
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Cruz JDO, Conceição IMCA, Sandrim VC, Luizon MR. Comprehensive analyses of DNA methylation of the TIMP3 promoter in placentas from early-onset and late-onset preeclampsia. Placenta 2021; 117:118-121. [PMID: 34883455 DOI: 10.1016/j.placenta.2021.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/23/2021] [Accepted: 12/01/2021] [Indexed: 11/26/2022]
Abstract
Preeclampsia (PE) is classified into late-onset (LOPE) or early-onset (EOPE) according to gestational age of onset (≥34 or <34 weeks, respectively), and into preterm and term (delivery at <37 or ≥37 weeks, respectively). An imbalanced expression of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) impairs proper placentation in PE, and DNA methylation (DNAm) may affect their expression. We performed comprehensive analyses of DNAm and TIMP3 expression in placentas from PE reclassified into EOPE, LOPE, and term PE. We identified significant differentially methylated probes at the TIMP3 promoter in PE (28), EOPE (38), LOPE (20), and term PE (4) compared to controls, and in EOPE vs. LOPE (8). Moreover, we found a hypomethylation >70% in all groups (except EOPE vs. LOPE) and an increased TIMP3 expression in corresponding placental samples from PE, EOPE and LOPE compared to controls (p<0.05). Our findings highlight the role of DNAm of the TIMP3 promoter region regarding an epigenetic mechanism in PE.
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Affiliation(s)
- Juliana de O Cruz
- Genetics Graduate Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Izabela M C A Conceição
- Biochemistry and Immunology Graduate Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Valeria C Sandrim
- Department of Biophysics and Pharmacology, Institute of Biosciences, Universidade Estadual Paulista, Botucatu, São Paulo, 18680-000, Brazil
| | - Marcelo R Luizon
- Genetics Graduate Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil; Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
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Cabral-Pacheco GA, Garza-Veloz I, Castruita-De la Rosa C, Ramirez-Acuña JM, Perez-Romero BA, Guerrero-Rodriguez JF, Martinez-Avila N, Martinez-Fierro ML. The Roles of Matrix Metalloproteinases and Their Inhibitors in Human Diseases. Int J Mol Sci 2020; 21:E9739. [PMID: 33419373 PMCID: PMC7767220 DOI: 10.3390/ijms21249739] [Citation(s) in RCA: 616] [Impact Index Per Article: 154.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 02/07/2023] Open
Abstract
Matrix metalloproteinases (MMPs) are a family of zinc-dependent extracellular matrix (ECM) remodeling endopeptidases that have the capacity to degrade almost every component of the ECM. The degradation of the ECM is of great importance, since it is related to embryonic development and angiogenesis. It is also involved in cell repair and the remodeling of tissues. When the expression of MMPs is altered, it can generate the abnormal degradation of the ECM. This is the initial cause of the development of chronic degenerative diseases and vascular complications generated by diabetes. In addition, this process has an association with neurodegeneration and cancer progression. Within the ECM, the tissue inhibitors of MMPs (TIMPs) inhibit the proteolytic activity of MMPs. TIMPs are important regulators of ECM turnover, tissue remodeling, and cellular behavior. Therefore, TIMPs (similar to MMPs) modulate angiogenesis, cell proliferation, and apoptosis. An interruption in the balance between MMPs and TIMPs has been implicated in the pathophysiology and progression of several diseases. This review focuses on the participation of both MMPs (e.g., MMP-2 and MMP-9) and TIMPs (e.g., TIMP-1 and TIMP-3) in physiological processes and on how their abnormal regulation is associated with human diseases. The inclusion of current strategies and mechanisms of MMP inhibition in the development of new therapies targeting MMPs was also considered.
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Affiliation(s)
| | - Idalia Garza-Veloz
- Molecular Medicine Laboratory, Unidad Académica de Medicina Humana y Ciencias de la Salud, Carretera Zacatecas-Guadalajara Km.6. Ejido la Escondida, Zacatecas 98160, Mexico; (G.AC.-P.); (C.C.-D.l.R.); (J.MR.-A.); (B.AP.-R.); (J.FG.-R.); (N.M.-A.)
| | | | | | | | | | | | - Margarita L Martinez-Fierro
- Molecular Medicine Laboratory, Unidad Académica de Medicina Humana y Ciencias de la Salud, Carretera Zacatecas-Guadalajara Km.6. Ejido la Escondida, Zacatecas 98160, Mexico; (G.AC.-P.); (C.C.-D.l.R.); (J.MR.-A.); (B.AP.-R.); (J.FG.-R.); (N.M.-A.)
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Scarpato R, Testi S, Colosimo V, Garcia Crespo C, Micheli C, Azzarà A, Tozzi MG, Ghirri P. Role of oxidative stress, genome damage and DNA methylation as determinants of pathological conditions in the newborn: an overview from conception to early neonatal stage. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2020; 783:108295. [DOI: 10.1016/j.mrrev.2019.108295] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 11/25/2019] [Accepted: 12/24/2019] [Indexed: 12/15/2022]
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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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8
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Xie D, Zhu J, Liu Q, Li J, Song M, Wang K, Zhou Q, Jia Y, Li T. Dysregulation of HDAC9 Represses Trophoblast Cell Migration and Invasion Through TIMP3 Activation in Preeclampsia. Am J Hypertens 2019; 32:515-523. [PMID: 30715128 DOI: 10.1093/ajh/hpz006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/06/2018] [Accepted: 01/09/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Preeclampsia (PE) is a common disease during pregnancy. It is generally accepted that PE is closely associated with shallow placenta implantation caused by the dysfunction of trophoblast cells. Trophoblasts have been recognized to share histological and behavioral characteristics with cancer cells, and many lines of evidence have emphasized that histone deacetylases (HDACs) are therapeutic targets for cancer treatment with the most promising. However, the roles of HDACs have not been well established in PE. The purpose of this study is investigating the expression of HDACs in preeclamptic placentas and to explore its roles in PE progression. METHODS Both mRNA and protein levels of HDAC9 were determined by q-RT-PCR and western blot in normal and preeclamptic placentas. The localization of HDAC9 was performed by immunohistochemistry. Trophoblast cell mobility and proliferation were determined by transwell and MTS assays, respectively. The histone acetylation levels of the tissue inhibitor of metalloproteinases 3 (TIMP3) promoter were detected by chromatin immunoprecipitation-quantitative polymerase chain reaction (ChIP-qPCR) assay. RESULTS HDAC9 was downregulated in preeclamptic placentas compared with that in normal controls, and it was mainly localized in the nucleus of syncytiotrophoblast cells. HDAC9 knockdown in HTR-8/SVneo cells inhibited cell migration and invasion. The transcriptional level of TIMP3 was upregulated in HDAC9-knockdown HTR-8/SVneo cells because of promoter histone hyperacetylation. Importantly, HDAC9 downregulation can rescue the defects caused by HDAC9 knockdown. CONCLUSIONS HDAC9 promotes trophoblast cell migration and invasion by repressing TIMP3 through promoter histone hypoacetylation. Thus, the findings of our study suggest that dysregulated HDAC9 and TIMP3 are relevant to PE.
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Affiliation(s)
- Dandan Xie
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jingping Zhu
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qianqian Liu
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jun Li
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mengjiu Song
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kai Wang
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qian Zhou
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yuanhui Jia
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ting Li
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
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Oxidative Stress in Preeclampsia and Placental Diseases. Int J Mol Sci 2018; 19:ijms19051496. [PMID: 29772777 PMCID: PMC5983711 DOI: 10.3390/ijms19051496] [Citation(s) in RCA: 326] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/09/2018] [Accepted: 05/11/2018] [Indexed: 02/07/2023] Open
Abstract
Preeclampsia is a persistent hypertensive gestational disease characterized by high blood pressure and proteinuria, which presents from the second trimester of pregnancy. At the cellular level, preeclampsia has largely been associated with the release of free radicals by the placenta. Placenta-borne oxidative and nitrosative stresses are even sometimes considered as the major molecular determinants of the maternal disease. In this review, we present the recent literature evaluating free radical production in both normal and pathological placentas (including preeclampsia and other major pregnancy diseases), in humans and animal models. We then assess the putative effects of these free radicals on the placenta and maternal endothelium. This analysis was conducted with regard to recent papers and possible therapeutic avenues.
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10
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Pan JX, Tan YJ, Wang FF, Hou NN, Xiang YQ, Zhang JY, Liu Y, Qu F, Meng Q, Xu J, Sheng JZ, Huang HF. Aberrant expression and DNA methylation of lipid metabolism genes in PCOS: a new insight into its pathogenesis. Clin Epigenetics 2018; 10:6. [PMID: 29344314 PMCID: PMC5767000 DOI: 10.1186/s13148-018-0442-y] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 01/08/2018] [Indexed: 11/10/2022] Open
Abstract
Background Polycystic ovary syndrome (PCOS), whose etiology remains uncertain, is a highly heterogenous and genetically complex endocrine disorder. The aim of this study was to identify differentially expressed genes (DEGs) in granulosa cells (GCs) from PCOS patients and make epigenetic insights into the pathogenesis of PCOS. Results Included in this study were 110 women with PCOS and 119 women with normal ovulatory cycles undergoing in vitro fertilization acting as the control group. RNA-seq identified 92 DEGs unique to PCOS GCs in comparison with the control group. Bioinformatic analysis indicated that synthesis of lipids and steroids was activated in PCOS GCs. 5-Methylcytosine analysis demonstrated that there was an approximate 25% reduction in global DNA methylation of GCs in PCOS women (4.44 ± 0.65%) compared with the controls (6.07 ± 0.72%; P < 0.05). Using MassArray EpiTYPER quantitative DNA methylation analysis, we also found hypomethylation of several gene promoters related to lipid and steroid synthesis, which might result in the aberrant expression of these genes. Conclusions Our results suggest that hypomethylated genes related to the synthesis of lipid and steroid may dysregulate expression of these genes and promote synthesis of steroid hormones including androgen, which could partially explain mechanisms of hyperandrogenism in PCOS. Electronic supplementary material The online version of this article (10.1186/s13148-018-0442-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jie-Xue Pan
- 1The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 China.,2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China.,4Reproductive Medicine Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 China
| | - Ya-Jing Tan
- 1The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 China
| | - Fang-Fang Wang
- 2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China
| | - Ning-Ning Hou
- 2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China
| | - Yu-Qian Xiang
- 1The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 China
| | - Jun-Yu Zhang
- 1The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 China
| | - Ye Liu
- 1The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 China
| | - Fan Qu
- 2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China
| | - Qing Meng
- 2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China
| | - Jian Xu
- 2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China
| | - Jian-Zhong Sheng
- 2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China.,3Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Hangzhou, 310058 China
| | - He-Feng Huang
- 1The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 China.,2The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, Zhejiang 310006 China
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Nectoux J. Current, Emerging, and Future Applications of Digital PCR in Non-Invasive Prenatal Diagnosis. Mol Diagn Ther 2017; 22:139-148. [DOI: 10.1007/s40291-017-0312-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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12
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Biró O, Nagy B, Rigó J. Identifying miRNA regulatory mechanisms in preeclampsia by systems biology approaches. Hypertens Pregnancy 2016; 36:90-99. [PMID: 27835046 DOI: 10.1080/10641955.2016.1239736] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Preeclampsia (PE) is the major cause of maternal and fetal morbidity and mortality, affecting 3-8% of all pregnancies around the globe. miRNAs are small, noncoding RNA molecules, which negatively regulate gene expression. Abnormally expressed miRNAs contribute to pregnancy complications such as PE. The aim of our study was to find possible regulatory mechanisms by system biology approaches, which are connected to the pathogenesis of PE. METHODS We integrated publicly available miRNA and gene expression profiles and created a network from the significant miRNA-mRNA pairs with the help of MAGIA and Cytoscape softwares. Two subnetworks were expanded by adding protein-protein interactions. Differentially expressed miRNAs were identified for the evaluation of their regulatory effect. We analyzed the miRNAs and their targets using different bioinformatics tools and through literature research. RESULTS Altogether, 52,603 miRNA-mRNA interactions were generated by the MAGIA web tool. The top 250 interactions were visualized and pairs with q < 0.0001 were analyzed, which included 85 nodes and 80 edges signalizing the connections between 52 regulated genes and 33 miRNAs. A total of 11 of the regulated genes are PE related and 9 of them were targeted by multiple miRNAs. A total of 8 miRNAs were associated with PE before, and 13 miRNAs regulated more than 1 mRNA. Hsa-mir-210 was the highest degree node in the network and its role in PE is well established. CONCLUSIONS We identified several miRNA-mRNA regulatory mechanisms which may contribute to the pathogenesis of PE. Further investigations are needed to validate these miRNA-mRNA interactions and to enlighten the possibilities of developing potential therapeutic targets.
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Affiliation(s)
- Orsolya Biró
- a First Department of Obstetrics and Gynaecology , Semmelweis University, Budapest , Hungary
| | - Bálint Nagy
- b Department of Human Genetics , University of Debrecen , Debrecen , Hungary
| | - János Rigó
- a First Department of Obstetrics and Gynaecology , Semmelweis University, Budapest , Hungary
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Vashukova ES, Glotov AS, Fedotov PV, Efimova OA, Pakin VS, Mozgovaya EV, Pendina AA, Tikhonov AV, Koltsova AS, Baranov VS. Placental microRNA expression in pregnancies complicated by superimposed pre‑eclampsia on chronic hypertension. Mol Med Rep 2016; 14:22-32. [PMID: 27176897 PMCID: PMC4918533 DOI: 10.3892/mmr.2016.5268] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 01/14/2016] [Indexed: 11/05/2022] Open
Abstract
Pre-eclampsia (PE) is a complication of pregnancy that affects 5–8% of women after 20 weeks of gestation. It is usually diagnosed based on the de novo onset of hypertension and proteinuria. Preexisting hypertension in women developing PE, also known as superimposed PE on chronic hypertension (SPE), leads to elevated risk of maternal and fetal mortality. PE is associated with an altered microRNA (miRNA) expression pattern in the placenta, suggesting that miRNA deregulation is involved in the pathogenesis of PE. Whether and how the miRNA expression pattern is changed in the SPE placenta remains unclear. The present study analyzed the placental miRNA expression profile in pregnancies complicated by SPE. miRNA expression profiles in SPE and normal placentas were investigated using an Ion Torrent sequencing system. Sequencing data were processed using a comprehensive analysis pipeline for deep miRNA sequencing (CAP-miRSeq). A total of 22 miRNAs were identified to be deregulated in placentas from patients with SPE. They included 16 miRNAs previously known to be associated with PE and 6 novel miRNAs. Among the 6 novel miRNAs, 4 were upregulated (miR-518a, miR-527, miR-518e and miR-4532) and 2 downregulated (miR-98 and miR-135b) in SPE placentas compared with controls. The present results suggest that SPE is associated with specific alterations in the placental miRNA expression pattern, which differ from alterations detected in PE placentas, and therefore, provide novel targets for further investigation of the molecular mechanisms underlying SPE pathogenesis.
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Affiliation(s)
- Elena S Vashukova
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Andrey S Glotov
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Pavel V Fedotov
- Computer Technologies Laboratory, ITMO University, St. Petersburg 197101, Russian Federation
| | - Olga A Efimova
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Vladimir S Pakin
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Elena V Mozgovaya
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Anna A Pendina
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Andrei V Tikhonov
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Alla S Koltsova
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
| | - Vladislav S Baranov
- D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, St. Petersburg 199034, Russian Federation
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14
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Sun M, Song MM, Wei B, Gao Q, Li L, Yao B, Chen L, Lin L, Dai Q, Zhou X, Tao J, Chen J, He C, Jin P, Xu Z. 5-Hydroxymethylcytosine-mediated alteration of transposon activity associated with the exposure to adverse in utero environments in human. Hum Mol Genet 2016; 25:2208-2219. [PMID: 27005421 DOI: 10.1093/hmg/ddw089] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 03/11/2016] [Indexed: 12/18/2022] Open
Abstract
Preeclampsia and gestational diabetes mellitus (GDM) are the most common clinical conditions in pregnancy that could result in adverse in utero environments. Fetal exposure to poor environments may raise the long-term risk of postnatal disorders, while epigenetic modifications could be involved. Recent research has implicated involvement of 5-hydroxymethylcytosine (5hmC), a DNA base derived from 5-methylcytosine, via oxidation by ten-eleven translocation (TET) enzymes, in DNA methylation-related plasticity. Here, we show that the TET2 expression and 5hmC abundance are significantly altered in the umbilical veins of GDM and preeclampsia. Genome-wide profiling of 5hmC revealed its specific reduction on intragenic regions from both GDM and preeclampsia compared to healthy controls. Gene Ontology analysis using loci bearing unique GDM- and preeclampsia-specific loss-of-5hmC indicated its impact on several critical biological pathways. Interestingly, the substantial alteration of 5hmC on several transposons and repetitive elements led to their differential expression. The alteration of TET expression, 5hmC levels and 5hmC-mediated transposon activity was further confirmed using established hypoxia cell culture model, which could be rescued by vitamin C, a known activator of TET proteins. Together, these results suggest that adverse pregnancy environments could influence 5hmC-mediated epigenetic profile and contribute to abnormal development of fetal vascular systems that may lead to postnatal diseases.
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Affiliation(s)
- Miao Sun
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Mingxi M Song
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Bin Wei
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Qinqin Gao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Lingjun Li
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Bing Yao
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Li Chen
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Li Lin
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Qing Dai
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Xiuwen Zhou
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Jianying Tao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Jie Chen
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Chuan He
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Peng Jin
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Zhice Xu
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
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Eidem HR, Rinker DC, Ackerman WE, Buhimschi IA, Buhimschi CS, Dunn-Fletcher C, Kallapur SG, Pavličev M, Muglia LJ, Abbot P, Rokas A. Comparing human and macaque placental transcriptomes to disentangle preterm birth pathology from gestational age effects. Placenta 2016; 41:74-82. [PMID: 27208410 DOI: 10.1016/j.placenta.2016.03.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 03/05/2016] [Accepted: 03/10/2016] [Indexed: 11/26/2022]
Abstract
INTRODUCTION A major issue in the transcriptomic study of spontaneous preterm birth (sPTB) in humans is the inability to collect healthy control tissue at the same gestational age (GA) to compare with pathologic preterm tissue. Thus, gene expression differences identified after the standard comparison of sPTB and term tissues necessarily reflect differences in both sPTB pathology and GA. One potential solution is to use GA-matched controls from a closely related species to tease apart genes that are dysregulated during sPTB from genes that are expressed differently as a result of GA effects. METHODS To disentangle genes whose expression levels are associated with sPTB pathology from those linked to GA, we compared RNA sequencing data from human preterm placentas, human term placentas, and rhesus macaque placentas at 80% completed gestation (serving as healthy non-human primate GA-matched controls). We first compared sPTB and term human placental transcriptomes to identify significantly differentially expressed genes. We then overlaid the results of the comparison between human sPTB and macaque placental transcriptomes to identify sPTB-specific candidates. Finally, we overlaid the results of the comparison between human term and macaque placental transcriptomes to identify GA-specific candidates. RESULTS Examination of relative expression for all human genes with macaque orthologs identified 267 candidate genes that were significantly differentially expressed between preterm and term human placentas. 29 genes were identified as sPTB-specific candidates and 37 as GA-specific candidates. Altogether, the 267 differentially expressed genes were significantly enriched for a variety of developmental, metabolic, reproductive, immune, and inflammatory functions. Although there were no notable differences between the functions of the 29 sPTB-specific and 37 GA-specific candidate genes, many of these candidates have been previously shown to be dysregulated in diverse pregnancy-associated pathologies. DISCUSSION By comparing human sPTB and term transcriptomes with GA-matched control transcriptomes from a closely related species, this study disentangled the confounding effects of sPTB pathology and GA, leading to the identification of 29 promising sPTB-specific candidate genes and 37 genes potentially related to GA effects. The apparent similarity in functions of the sPTB and GA candidates may suggest that the effects of sPTB and GA do not correspond to biologically distinct processes. Alternatively, it may reflect the poor state of knowledge of the transcriptional landscape underlying placental development and disease.
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Affiliation(s)
- Haley R Eidem
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA.
| | - David C Rinker
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; Program in Human Genetics, Vanderbilt University, Nashville, TN 37235, USA.
| | - William E Ackerman
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, OH 43210, USA.
| | - Irina A Buhimschi
- Center for Perinatal Research, Nationwide Children's Hospital, Columbus, OH 43210, USA.
| | - Catalin S Buhimschi
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, OH 43210, USA.
| | - Caitlin Dunn-Fletcher
- Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH 45229, USA.
| | - Suhas G Kallapur
- Center for Perinatal Research, Nationwide Children's Hospital, Columbus, OH 43210, USA.
| | - Mihaela Pavličev
- Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH 45229, USA.
| | - Louis J Muglia
- Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH 45229, USA.
| | - Patrick Abbot
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA.
| | - Antonis Rokas
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; Program in Human Genetics, Vanderbilt University, Nashville, TN 37235, USA.
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16
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Zhang Y, Ma Q, Yang H, Long Y, Liu X, Zhou C. Maternal plasma TIMP-4 levels combined with clinical risk factors for the early prediction of pregnancy-induced hypertension. Arch Gynecol Obstet 2015; 292:1043-50. [PMID: 25986893 DOI: 10.1007/s00404-015-3753-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 05/11/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The objective of this study was to create a model for early predicting pregnancy-induced hypertension (PIH) using plasma markers and clinical risk factors. METHODS A nested case-control study was performed at the Laboratory Department of Guangzhou Women and Children's Medical Center. From a prospective cohort of tens of thousands of unselected women with singleton pregnancies at 8-20 weeks gestation, maternal plasma samples were obtained from 73 women who subsequently developed PIH (PIH group) and 146 gestational age- and maternal age-matched women with normotensive pregnancies (control group). Proteins extracted from the plasma samples were screened by microchip and verified by ELISA. Clinical risk factor data were analyzed retrospectively. RESULTS Compared to the control group, high concentrations of tissue inhibitor of metalloproteinase-4 (TIMP-4) were found in women with PIH (P = 0.000). Univariate risk factor analysis identified three variables with significant differences between the groups: family history of PIH (P = 0.031), body mass index (BMI; P < 0.001), and non-glucose-6-phosphate dehydrogenase deficiency-induced anemia (P < 0.027). Multiple regression analyses revealed a significant relationship of PIH with TIMP-4 levels, BMI, and family history (combined area under the receiver operating characteristic curve = 0.820). CONCLUSION Upregulation of plasma TIMP-4 might contribute to PIH processes. Potential risk factors of this disease may include a family history of PIH and BMI. The combination of TIMP-4 levels and these risk factors may have some predictive values for PIH. Future multicenter studies including greater numbers of samples, analyzed proteins, and risk factors are needed to obtain a higher predictive value of the model for the clinical diagnosis of PIH.
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Affiliation(s)
- Yonggang Zhang
- Laboratory Department, Guangzhou Women and Children Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Qinling Ma
- Laboratory Department, Guangzhou Women and Children Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongling Yang
- Laboratory Department, Guangzhou Women and Children Medical Center, Guangzhou Medical University, Guangzhou, China.
| | - Yan Long
- Laboratory Department, Guangzhou Women and Children Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xingxing Liu
- Laboratory Department, The 324th Hospital of Third Military Medical University, Chongqing, China
| | - Chen Zhou
- Laboratory Department, Guangzhou Women and Children Medical Center, Guangzhou Medical University, Guangzhou, China
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17
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Guo C, Cao X, Wang Q, Wang G, An L, Du M, Qiu Y, Yang Y, Li H, Wang Y, Wang S, Wang X, Ma X. Contribution of TIMP3 polymorphisms to the development of preeclampsia in Han Chinese women. J Assist Reprod Genet 2015; 32:1525-30. [PMID: 26304100 PMCID: PMC4615926 DOI: 10.1007/s10815-015-0529-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 06/30/2015] [Indexed: 01/24/2023] Open
Abstract
PURPOSE The aim of this study was to investigate whether polymorphisms in the tissue inhibitor of metalloproteinase 3 gene (TIMP3) are associated with the risk of preeclampsia (PE) in Han Chinese women. METHODS Nine single TIMP3 tag-single nucleotide polymorphisms were selected by Haploview and genotyped using the Sequenom method in 181 preeclamptic and 203 healthy pregnant women from eastern China. RESULTS The allele frequencies of the tag-single nucleotide polymorphisms were not significantly different between groups (P > 0.05). However, the genotype distribution of rs135025 was shown to differ between the multigravidity PE subgroup (>3) and controls under additive (P = 0.018) and recessive models (P = 0.008), while the genotype distribution of rs80272 differed significantly between the severe PE subgroup and controls under additive (P = 0.014) and dominant models (P = 0.041). Moreover, the H2 haplotype (A-C-G-T-A-A-G-C-G) was found to be associated with the risk of PE (P = 0.035). CONCLUSIONS Genotypes of rs135025 and rs80272 in TIMP3 may therefore influence susceptibility to PE, and pregnant women carrying the H2 haplotype might be more prone to developing PE.
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Affiliation(s)
- Changlong Guo
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Xiaofang Cao
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Qidi Wang
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Guangyu Wang
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Lisha An
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Meng Du
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Yue Qiu
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Ying Yang
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Hui Li
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuting Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shuo Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xingyu Wang
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China.
| | - Xu Ma
- National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China.
- Graduate School of Peking Union Medical College, Beijing, China.
- World Health Organization Collaborating Centre for Research in Human Reproduction, Beijing, China.
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18
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Singh MD, Thomas P, Owens J, Hague W, Fenech M. Potential role of folate in pre-eclampsia. Nutr Rev 2015; 73:694-722. [PMID: 26359215 DOI: 10.1093/nutrit/nuv028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Dietary deficiencies of folate and other B vitamin cofactors involved in one-carbon metabolism, together with genetic polymorphisms in key folate-methionine metabolic pathway enzymes, are associated with increases in circulating plasma homocysteine, reduction in DNA methylation patterns, and genome instability events. All of these biomarkers have also been associated with pre-eclampsia. The aim of this review was to explore the literature and identify potential knowledge gaps in relation to the role of folate at the genomic level in either the etiology or the prevention of pre-eclampsia. A systematic search strategy was designed to identify citations in electronic databases for the following terms: folic acid supplementation AND pre-eclampsia, folic acid supplementation AND genome stability, folate AND genome stability AND pre-eclampsia, folic acid supplementation AND DNA methylation, and folate AND DNA methylation AND pre-eclampsia. Forty-three articles were selected according to predefined selection criteria. The studies included in the present review were not homogeneous, which made pooled analysis of the data very difficult. The present review highlights associations between folate deficiency and certain biomarkers observed in various tissues of women at risk of pre-eclampsia. Further investigation is required to understand the role of folate in either the etiology or the prevention of pre-eclampsia.
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Affiliation(s)
- Mansi Dass Singh
- M.D. Singh, J. Owens, and W. Hague are with the School of Pediatrics and Reproductive Health, Discipline of Obstetrics and Gynecology, Faculty of Health Sciences, Robinson Institute, Australian Research Centre for Health of Women and Babies, The University of Adelaide, Adelaide, South Australia, Australia. M.D. Singh, P. Thomas and M. Fenech are with the Genome Health and Personalized Nutrition Laboratory Commonwealth Scientific and Industrial Research Organization (CSIRO), Food and Nutrition Flagship, Adelaide, South Australia, Australia
| | - Philip Thomas
- M.D. Singh, J. Owens, and W. Hague are with the School of Pediatrics and Reproductive Health, Discipline of Obstetrics and Gynecology, Faculty of Health Sciences, Robinson Institute, Australian Research Centre for Health of Women and Babies, The University of Adelaide, Adelaide, South Australia, Australia. M.D. Singh, P. Thomas and M. Fenech are with the Genome Health and Personalized Nutrition Laboratory Commonwealth Scientific and Industrial Research Organization (CSIRO), Food and Nutrition Flagship, Adelaide, South Australia, Australia
| | - Julie Owens
- M.D. Singh, J. Owens, and W. Hague are with the School of Pediatrics and Reproductive Health, Discipline of Obstetrics and Gynecology, Faculty of Health Sciences, Robinson Institute, Australian Research Centre for Health of Women and Babies, The University of Adelaide, Adelaide, South Australia, Australia. M.D. Singh, P. Thomas and M. Fenech are with the Genome Health and Personalized Nutrition Laboratory Commonwealth Scientific and Industrial Research Organization (CSIRO), Food and Nutrition Flagship, Adelaide, South Australia, Australia
| | - William Hague
- M.D. Singh, J. Owens, and W. Hague are with the School of Pediatrics and Reproductive Health, Discipline of Obstetrics and Gynecology, Faculty of Health Sciences, Robinson Institute, Australian Research Centre for Health of Women and Babies, The University of Adelaide, Adelaide, South Australia, Australia. M.D. Singh, P. Thomas and M. Fenech are with the Genome Health and Personalized Nutrition Laboratory Commonwealth Scientific and Industrial Research Organization (CSIRO), Food and Nutrition Flagship, Adelaide, South Australia, Australia
| | - Michael Fenech
- M.D. Singh, J. Owens, and W. Hague are with the School of Pediatrics and Reproductive Health, Discipline of Obstetrics and Gynecology, Faculty of Health Sciences, Robinson Institute, Australian Research Centre for Health of Women and Babies, The University of Adelaide, Adelaide, South Australia, Australia. M.D. Singh, P. Thomas and M. Fenech are with the Genome Health and Personalized Nutrition Laboratory Commonwealth Scientific and Industrial Research Organization (CSIRO), Food and Nutrition Flagship, Adelaide, South Australia, Australia.
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19
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Shan N, Xiao X, Chen Y, Luo X, Yin N, Deng Q, Qi H. Expression of DAB2IP in human trophoblast and its role in trophoblast invasion. J Matern Fetal Neonatal Med 2015; 29:393-9. [PMID: 25604087 DOI: 10.3109/14767058.2014.1001974] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE DAB2IP is a growth inhibitor present in many types of cancer cells and is associated with epigenetic regulations controlling tumor development. The primary objective of this study is to determine whether DAB2IP participates in the invasion and migration of trophoblasts during placental development. METHODS The expressions of DAB2IP in human placentas (10 villi, 18 term placentas and 20 pre-eclampsia placentas) were determined by immunohistochemistry, Western blotting and quantitative RT-PCR. HTR8/SVneo cells were treated with hypoxia-reoxygenation (H/R) to test how DAB2IP expression would affect the invasion and migration of trophoblasts. JEG-3 andHTR8/SVneo cells were treated with 5-aza-2-deoxycytidine (5-aza-dC) to study the role of DAB2IP promoter methylation in trophoblasts. RESULTS DAB2IP was strongly expressed in human villi and extravillous trophoblasts as well as in HTR8/SVneo cells, but not in pre-eclampsia placentas. DAB2IP expression increased after H/R treatment, but the invasive and migratory abilities of trophoblasts were reduced. DAB2IP expression in JEG-3 cells also increased after treatment with 5-aza-dC. CONCLUSIONS These findings strongly suggest that DAB2IP is an important negative regulator at the maternal-fetal interface during early pregnancy. Excessive oxidative stress can increase DAB2IP expression in trophoblasts. The mechanism of DNA methylation may involve in its function during the development of pathologic pregnancy.
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Affiliation(s)
- Nan Shan
- a Department of Obstetrics and Gynecology , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
| | - Xiaoqiu Xiao
- a Department of Obstetrics and Gynecology , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
| | - Ying Chen
- a Department of Obstetrics and Gynecology , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
| | - Xin Luo
- a Department of Obstetrics and Gynecology , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
| | - Nanlin Yin
- a Department of Obstetrics and Gynecology , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
| | - Qinyin Deng
- a Department of Obstetrics and Gynecology , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
| | - Hongbo Qi
- a Department of Obstetrics and Gynecology , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
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20
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Tsai HT, Hsieh MJ, Chiou HL, Lee HL, Hsin MC, Liou YS, Yang CC, Yang SF, Kuo WH. TIMP-3 -1296 T>C and TIMP-4 -55 T>C gene polymorphisms play a role in the susceptibility of hepatocellular carcinoma among women. Tumour Biol 2014; 35:8999-9007. [PMID: 24903383 DOI: 10.1007/s13277-014-2170-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 05/29/2014] [Indexed: 01/13/2023] Open
Abstract
The purpose of this study was to investigate genetic impact of TIMP-3 -1296 T>C (rs9619311) and TIMP-4 -55 T>C (rs3755724) gene polymorphisms on the susceptibility and clinicopathological characteristics of hepatocellular carcinoma (HCC). A total of 759 subjects, including 530 healthy controls and 229 patients with hepatocellular carcinoma, were recruited in this study. Allelic discrimination of TIMP-3 -1296 T>C (rs9619311) and TIMP-4 -55 T>C (rs3755724) polymorphisms was assessed with the ABI StepOne™ Real-Time PCR System. Among women group, individuals with TC or CC alleles of TIMP-3 -1296 T>C gene polymorphism protected against HCC (AOR = 0.35, 95% confidence interval (CI) = 0.12-0.97; p = 0.04) compared to individuals with TT alleles, after adjusting for other confounders. Also, women with TC alleles and with TC or CC alleles of TIMP-4 -55 T>C polymorphisms had a 2.52-fold risk (95%CI = 1.23-5.13; p = 0.01) and 2.47-fold risk (95%CI = 1.26-4.87; p = 0.008) of developing HCC compared to individuals with TT alleles, after adjusting for other confounders. There was no synergistic effect between gene polymorphism and environmental risk factors, including tobacco and alcohol consumptions and clinical statuses of HCC as well as serum expression of liver-related clinicopathological markers. In conclusion, gene polymorphisms of TIMP-3 -1296 T>C (rs9619311) and TIMP-4 -55 T>C (rs3755724) play a role in the susceptibility of HCC among Taiwan women.
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Affiliation(s)
- Hsiu-Ting Tsai
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
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Xiang Y, Zhang J, Li Q, Zhou X, Wang T, Xu M, Xia S, Xing Q, Wang L, He L, Zhao X. DNA methylome profiling of maternal peripheral blood and placentas reveal potential fetal DNA markers for non-invasive prenatal testing. Mol Hum Reprod 2014; 20:875-84. [PMID: 24996894 DOI: 10.1093/molehr/gau048] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Utilizing epigenetic (DNA methylation) differences to differentiate between maternal peripheral blood (PBL) and fetal (placental) DNA has been a promising strategy for non-invasive prenatal testing (NIPT). However, the differentially methylated regions (DMRs) have yet to be fully ascertained. In the present study, we performed genome-wide comparative methylome analysis between maternal PBL and placental DNA from pregnancies of first trimester by methylated DNA immunoprecipitation-sequencing (MeDIP-Seq) and Infinium HumanMethylation450 BeadChip assays. A total of 36 931 DMRs and 45 804 differentially methylated sites (DMSs) covering the whole genome, exclusive of the Y chromosome, were identified via MeDIP-Seq and Infinium 450k array, respectively, of which 3759 sites in 2188 regions were confirmed by both methods. Not only did we find the previously reported potential fetal DNA markers in our identified DMRs/DMSs but also we verified fully the identified DMRs/DMSs in the validation round by MassARRAY EpiTYPER. The screened potential fetal DNA markers may be used for NIPT on aneuploidies and other chromosomal diseases, such as cri du chat syndrome and velo-cardio-facial syndrome. In addition, these potential markers may have application in the early diagnosis of placental dysfunction, such as pre-eclampsia.
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Affiliation(s)
- Yuqian Xiang
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Junyu Zhang
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Qiaoli Li
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Xinyao Zhou
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Teng Wang
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Mingqing Xu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
| | - Shihui Xia
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Qinghe Xing
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Lei Wang
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Lin He
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
| | - Xinzhi Zhao
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
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Overlapping DNA methylation profile between placentas with trisomy 16 and early-onset preeclampsia. Placenta 2014; 35:216-22. [DOI: 10.1016/j.placenta.2014.01.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 12/17/2013] [Accepted: 01/02/2014] [Indexed: 01/09/2023]
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Yin YZ, She Q, Zhang J, Zhang PZ, Zhang Y, Lin JW, Ye YC. Placental methylation markers in normal and trisomy 21 tissues. Prenat Diagn 2013; 34:63-70. [PMID: 24166080 DOI: 10.1002/pd.4256] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 09/08/2013] [Accepted: 10/09/2013] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The objective of this study is to combine multiplex ligation-dependent probe amplification (MLPA) and bisulfite sequencing to determine DNA methylation markers for noninvasive prenatal diagnosis of Down syndrome. METHODS DNA methylation ratios (MR) of four fragments (CGI149, CGI045, HLCS-1, and HLCS-2) on chromosome 21 were evaluated in blood cells from 13 nonpregnant women, 15 euploidies, and 11 Down Syndrome (DS) placentae. Ratios were measured by bisulfite sequencing and methylation-specific (MS)-MLPA. RESULTS The MS-MLPA and bisulfite sequencing results were concordant. CGI149, CGI045, and HLCS-2 were unmethylated in all nonpregnant blood cells. CGI149, CGI045, HLCS-1, and HLCS-2 were methylated in most of the euploid (13, 11, 15, and 15, respectively) and DS placentae (10, 11, 11, and 11, respectively). The median placental DNA MR in CGI149 was 0.4578 (interquartile range, 0.3568-0.5169) and 0.5918 (interquartile range, 0.5618-0.6659) in euploid and DS placentae, respectively (p = 0.001). Using placental MR at 0.5390 as a threshold, we detected DS at 90.9% sensitivity and 93.3% specificity. CONCLUSION The MS-MLPA is an effective alternative to bisulfite sequencing in assessing placental MR. CGI149 is a potential marker for the noninvasive diagnosis of Down syndrome.
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Affiliation(s)
- Yu-Zhu Yin
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Blair JD, Yuen RK, Lim BK, McFadden DE, von Dadelszen P, Robinson WP. Widespread DNA hypomethylation at gene enhancer regions in placentas associated with early-onset pre-eclampsia. Mol Hum Reprod 2013; 19:697-708. [PMID: 23770704 PMCID: PMC3779005 DOI: 10.1093/molehr/gat044] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 05/24/2013] [Accepted: 06/07/2013] [Indexed: 12/17/2022] Open
Abstract
Pre-eclampsia is a serious complication of pregnancy that can affect both maternal and fetal outcomes. Early-onset pre-eclampsia (EOPET) is a severe form of pre-eclampsia that is associated with altered physiological characteristics and gene expression in the placenta. DNA methylation is a relatively stable epigenetic modification to DNA that can reflect gene expression, and can provide insight into the mechanisms underlying such expression changes. This case-control study focused on DNA methylation and gene expression of whole chorionic villi samples from 20 EOPET placentas and 20 gestational age-matched controls from pre-term births. DNA methylation was also assessed in placentas affected by late-onset pre-eclampsia (LOPET) and normotensive intrauterine growth restriction (nIUGR). The Illumina HumanMethylation450 BeadChip was used to assess DNA methylation at >480 000 cytosine-guanine dinucleotide (CpG) sites. The Illumina HT-12v4 Expression BeadChip was used to assess gene expression of >45 000 transcripts in a subset of cases and controls. DNA methylation analysis by pyrosequencing was used to follow-up the initial findings in four genes with a larger cohort of cases and controls, including nIUGR and LOPET placentas. Bioinformatic analysis was used to identify overrepresentation of gene ontology categories and transcription factor binding motifs. We identified 38 840 CpG sites with significant (false discovery rate <0.01) DNA methylation alterations in EOPET, of which 282 had >12.5% methylation difference compared with the controls. Significant sites were enriched at the enhancers and low CpG density regions of the associated genes and the majority (74.5%) of these sites were hypomethylated in EOPET. EOPET, but not associated clinical features, such as intrauterine growth restriction (IUGR), presented a distinct DNA methylation profile. CpG sites from four genes relevant to pre-eclampsia (INHBA, BHLHE40, SLC2A1 and ADAM12) showed different extent of changes in LOPET and nIUGR. Genome-wide expression in a subset of samples showed that some of the gene expression changes were negatively correlated with DNA methylation changes, particularly for genes that are responsible for angiogenesis (such as EPAS1 and FLT1). Results could be confounded by altered cell populations in abnormal placentas. Larger sample sizes are needed to fully address the possibility of sub-profiles of methylation within the EOPET cohort. Based on DNA methylation profiling, we conclude that there are widespread DNA methylation alterations in EOPET that may be associated with changes in placental function. This property may provide a useful tool for early screening of such placentas. This study identifies DNA methylation changes at many loci previously reported to have altered gene expression in EOPET placentas, as well as in novel biologically relevant genes we confirmed to be differentially expressed. These results may be useful for DNA- methylation-based non-invasive prenatal diagnosis of at-risk pregnancies.
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Affiliation(s)
- John D. Blair
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, CanadaV5Z 4H4
- Child & Family Research Institute, Vancouver, BC, CanadaV5Z 4H4
| | - Ryan K.C. Yuen
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, CanadaV5Z 4H4
- The Centre for Applied Genomics and Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON, CanadaM5G 1X8
| | - Brendan K. Lim
- Child & Family Research Institute, Vancouver, BC, CanadaV5Z 4H4
| | - Deborah E. McFadden
- Department of Pathology, University of British Columbia, Vancouver, BC, CanadaV5Z 4H4
| | - Peter von Dadelszen
- Child & Family Research Institute, Vancouver, BC, CanadaV5Z 4H4
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, CanadaV5Z 4H4
| | - Wendy P. Robinson
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, CanadaV5Z 4H4
- Child & Family Research Institute, Vancouver, BC, CanadaV5Z 4H4
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Calicchio R, Buffat C, Vaiman D, Miralles F. [Endothelial dysfunction: role in the maternal syndrome of preeclampsia and long-term consequences for the cardiovascular system]. Ann Cardiol Angeiol (Paris) 2013; 62:215-220. [PMID: 23721989 DOI: 10.1016/j.ancard.2013.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 03/08/2013] [Indexed: 06/02/2023]
Abstract
Preeclampsia is a pregnancy disorder being a leading cause of maternal and fetal mortality and morbidity. It is a complex multisystem disease characterized by hypertension and proteinuria. In preeclampsia the placenta releases factors into the maternal circulation which cause a systemic endothelial dysfunction. Here, we review data demonstrating the central role played by the endothelium in the development of the maternal syndrome of preeclampsia. We present also original data showing how circulating factors present in the plasma of preeclamptic women can alter the transcriptome of endothelial cells. The expression of genes involved in essential functions such as vasoregulation, oxidative stress, apoptosis and cell proliferation show differential expression when endothelial cells are exposed to preeclamptic or normal pregnancy plasma. We conclude by discussing the growing evidences that the alterations of the endothelium during preeclampsia are linked to an increased risk of cardiovascular diseases latter on life. Therefore, a better understanding of the modifications undergone by the endothelial cells during preeclampsia is essential to develop new therapeutic approaches to both, manage preeclampsia and to prevent the long-term sequelae of the disease on women cardiovascular system.
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Affiliation(s)
- R Calicchio
- Inserm U1016-CNRS UMR8104, université Paris Descartes, institut Cochin, 24, rue du Faubourg-Saint-Jacques, 75014 Paris, France.
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Xiang Y, Cheng Y, Li X, Li Q, Xu J, Zhang J, Liu Y, Xing Q, Wang L, He L, Zhao X. Up-regulated expression and aberrant DNA methylation of LEP and SH3PXD2A in pre-eclampsia. PLoS One 2013; 8:e59753. [PMID: 23544093 PMCID: PMC3609796 DOI: 10.1371/journal.pone.0059753] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 02/18/2013] [Indexed: 12/31/2022] Open
Abstract
The primary mechanism underlying pre-eclampsia (PE) remains one of the most burning problems in the obstetrics and gynecology. In this study, we performed an expression profiling screen and detected 1312 genes that were differentially expressed (p<0.05 and fold change >1.5) in PE placentas, including LEP and SH3PXD2A. After validating the microarray results, we conducted the quantitative methylation analysis of LEP and SH3PXD2A in preeclamptic (n = 16) versus normal placentas (n = 16). Our results showed that many CpG sites close to the transcriptional start site (TSS) of LEP gene were hypomethylated in placentas from pregnancies with PE compared with those of in controls, including the TSS position (p = 0.001), the binding sites of Sp1 (p = 1.57×10−4), LP1 (p = 0.023) and CEBPα (p = 0.031). Luciferase reporter analysis confirmed the aberrant methylation of LEP promoter and CEBPα co-transfection had a role in the regulation of gene expression. Our results indicated the aberrant LEP promoter methylation was involved in the development of PE. We did not find a significant methylation differences between groups in the promoter region of SH3PXD2A, however, a CGI region in the gene body (CGI34) presented a higher methylation in preeclamptic placentas (p = 1.57×10−4), which might promote the efficiency of gene transcription. We speculated that SH3PXD2A may take part in the pathogenesis of PE through its role in the regulation of trophoblast cell invasion in the period of placenta formation.
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Affiliation(s)
- Yuqian Xiang
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yan Cheng
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai, China
| | - Xiaotian Li
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai, China
| | - Qiaoli Li
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jiawei Xu
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Junyu Zhang
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yun Liu
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Qinghe Xing
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Lei Wang
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Lin He
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
- * E-mail: (LH); (XZ)
| | - Xinzhi Zhao
- Children’s Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- * E-mail: (LH); (XZ)
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