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Yan X, Fang Y, Yuan Y, Ding Y, Yu H, Li Y, Shi Q, Gao Y, Zhou X, Zhang D, Yuan E, Zhou H, Zhao X, Zhang L. Combined analysis of the effects of hypoxia and oxidative stress on DNA methylation and the transcriptome in HTR-8/SVneo trophoblast cells. J Cell Mol Med 2024; 28:e18469. [PMID: 38899809 PMCID: PMC11187809 DOI: 10.1111/jcmm.18469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/08/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
The alterations in DNA methylation and transcriptome in trophoblast cells under conditions of low oxygen and oxidative stress have major implications for pregnancy-related disorders. However, the exact mechanism is still not fully understood. In this study, we established models of hypoxia (H group) and oxidative stress (HR group) using HTR-8/SVneo trophoblast cells and performed combined analysis of genome-wide DNA methylation changes using reduced representation bisulphite sequencing and transcriptome expression changes using RNA sequencing. Our findings revealed that the H group exhibited a higher number of differentially methylated genes and differentially expressed genes than the HR group. In the H group, only 0.90% of all differentially expressed genes displayed simultaneous changes in DNA methylation and transcriptome expression. After the threshold was expanded, this number increased to 6.29% in the HR group. Notably, both the H group and HR group exhibited concurrent alterations in DNA methylation and transcriptome expression within Axon guidance and MAPK signalling pathway. Among the top 25 differentially methylated KEGG pathways in the promoter region, 11 pathways were commonly enriched in H group and HR group, accounting for 44.00%. Among the top 25 KEGG pathways in transcriptome with significant differences between the H group and HR group, 10 pathways were consistent, accounting for 40.00%. By integrating our previous data on DNA methylation from preeclamptic placental tissues, we identified that the ANKRD37 and PFKFB3 genes may contribute to the pathogenesis of preeclampsia through DNA methylation-mediated transcriptome expression under hypoxic conditions.
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Affiliation(s)
- Xinjing Yan
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
| | - Yang Fang
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
| | - Yujie Yuan
- Judicial Appraisal InstitutionThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Yangnan Ding
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
| | - Haiyang Yu
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
| | - Yina Li
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
| | - Qianqian Shi
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
| | - Yongrui Gao
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
| | - Xinyuan Zhou
- Department of Obstetrics and GynecologyThe Third Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Dongxin Zhang
- Microbiome Medicine Center, Department of Laboratory MedicineZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Enwu Yuan
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
- Tianjian Advanced Biomedical LaboratoryZhengzhouChina
| | - Hongwei Zhou
- Microbiome Medicine Center, Department of Laboratory MedicineZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Xin Zhao
- Tianjian Advanced Biomedical LaboratoryZhengzhouChina
| | - Linlin Zhang
- Department of Laboratory MedicineThird Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of PregnancyZhengzhouChina
- Tianjian Advanced Biomedical LaboratoryZhengzhouChina
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Liu Z, Yu Y, Zhang X, Wang C, Pei J, Gu W. Transcriptomic profiling in hypoxia-induced trophoblast cells for preeclampsia. Placenta 2023; 136:8-17. [PMID: 37001424 DOI: 10.1016/j.placenta.2023.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/24/2023] [Accepted: 03/18/2023] [Indexed: 03/30/2023]
Abstract
This study aimed to identify the expression profile of mRNAs and analyze the associated pathways in hypoxia-induced trophoblast cells to understand the effect of hypoxia on the pathophysiology of preeclampsia (PE). We downloaded two gene expression datasets (GSE47187 and GSE60432) from the Gene Expression Omnibus (GEO) datasets to identify altered transcriptomes. GEO2R, gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and protein-protein interaction (PPI) networks were used to reveal the functional roles and regulatory networks of the differentially expressed genes (DEGs). In total, 224 DEGs (91 upregulated and 133 downregulated) were identified, and the "HIF-1 signaling pathway" was activated in placentas from patients with PE. We validated the expression levels of five proteins in the plasma of NP and PE patients during early or late pregnancy using western blotting. In primary trophoblast cells cultured under hypoxic conditions, 754 DEGs were identified, including 362 upregulated and 392 downregulated genes. These DEGs were associated with the "HIF-1signaling pathway," "response to hypoxia," and several glucose metabolism pathways. In addition, a PPI network was constructed, and an important module, including 18 hub genes, was identified. Finally, we validated 18 hub genes using qRT-PCR. Furthermore, we performed microarray profiling of hypoxia-treated HTR8/SVneo cells (immortalized human first-trimester extravillous trophoblast cells) to validate the DEGs and pathways identified in hypoxia-induced primary trophoblast cells. Our results stress the differential expression profiles of mRNAs in hypoxia-induced trophoblast cells, which provide potential pathophysiological mechanisms for preeclampsia.
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Zheng X, Wu W, Zhou Q, Lian Y, Xiang Y, Zhao X. Targeted bisulfite resequencing of differentially methylated cytosines in pre-eclampsia reveals a skewed dynamic balance in the DNA methylation of enhancers. Clin Sci (Lond) 2023; 137:265-279. [PMID: 36645190 DOI: 10.1042/cs20220644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/17/2023]
Abstract
Pre-eclampsia (PE) is a major hypertensive disorder of pregnancy. Widespread differentially methylated cytosines (DMCs) with modest changes in methylation level are associated with PE, whereas their cause and biological significance remain unknown. We aimed to clarify DNA methylation patterns around DMCs in 103 placentas using MethylCap targeted bisulfite re-sequencing (MethylCap-seq) assays of 690 selected DMCs. We verified the MethylCap-seq method, then validated 677 (98.1%) of DMCs (vDMCs) in an independent cohort. The validated DMCs were strongly enriched in active placenta-specific enhancers and showed highly dynamic methylation levels. We found high epigenetic heterogeneity between vDMCs and adjacent CpG sites (r2 < 0.2) and a significant decrease in PE in the discovery and replication cohorts (P = 2.00 × 10-24 and 6.43 × 10-9, respectively). We replicated the methylation changes in a hypoxia/reoxygenation cell model. We constructed 112 methylation haplotype blocks and found that the frequencies of unmethylated haplotypes (UMHs) were dynamic with gestational age (GA) and were altered in maternal plasma of patients with PE. Our results uncovered additional DNA methylation features in PE placentas and suggested a model of skewed DNA methylation balance of enhancers in PE.
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Affiliation(s)
- Xiaoguo Zheng
- International Peace Maternal and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, 200030, Shanghai, China
| | - Weibin Wu
- International Peace Maternal and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, 200030, Shanghai, China
| | - Qian Zhou
- International Peace Maternal and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030, Shanghai, China
| | - Yahan Lian
- International Peace Maternal and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, 200030, Shanghai, China
| | - Yuqian Xiang
- International Peace Maternal and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, 200030, Shanghai, China
| | - Xinzhi Zhao
- International Peace Maternal and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, 200030, Shanghai, China
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4
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Zhang G, Feng Y, Wang M, Liu X. ATL1 inhibits the proliferation and invasion of trophoblast cells via inhibition of the mTOR signaling pathway. J Biochem Mol Toxicol 2023; 37:e23237. [PMID: 36193555 DOI: 10.1002/jbt.23237] [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: 12/15/2021] [Revised: 08/01/2022] [Accepted: 09/22/2022] [Indexed: 01/18/2023]
Abstract
Pre-eclampsia (PE) is a major cause of hypertension in maternal and fetal. Atlastin-1 (ATL1), one regulator of endoplasmic reticulum (ER) morphology, participates in tubular ER formation and protein synthesis. The objective of this study is to investigate the role and molecular mechanism of ATL1 in PE. GEO databases showed that ATL1 was upregulated in PE patients. Our data also found that ATL1 was highly expressed in PE placental tissues. The cell viability, proliferation, migration, and invasion of HTR-8/SVneo cells increased/decreased after the downregulation/upregulation of ATL1. The mTOR pathway is the downstream pathway of ATL1. The levels of p-p70S6K and p-mTOR were increased/decreased after the downregulation/upregulation of ATL1. Moreover, rapamycin, an inhibitor of mTOR pathway, reversed the promotive effect of siATL1 on proliferation, migration, and invasion in HTR-8/SVneo cells. In conclusion, ATL1 inhibits the proliferation and invasion of trophoblast cells via the inhibition of the mTOR signaling pathway in HTR-8/SVneo cells.
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Affiliation(s)
- Guanli Zhang
- Department of Obstetrics, Yantaishan Hospital, Yantai, Shandong, China
| | - Yan Feng
- Department of Obstetrics, Liaocheng Dongchangfu Maternal and Child Health Hospital, Liaocheng, Shandong, China
| | - Min Wang
- Department of Obstetrics, Liaocheng Dongchangfu Maternal and Child Health Hospital, Liaocheng, Shandong, China
| | - Xin Liu
- Department of Obstetrics, Liaocheng Dongchangfu Maternal and Child Health Hospital, Liaocheng, Shandong, China
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5
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Fernandez-Jimenez N, Fore R, Cilleros-Portet A, Lepeule J, Perron P, Kvist T, Tian FY, Lesseur C, Binder AM, Lozano M, Martorell-Marugán J, Loke YJ, Bakulski KM, Zhu Y, Forhan A, Sammallahti S, Everson TM, Chen J, Michels KB, Belmonte T, Carmona-Sáez P, Halliday J, Daniele Fallin M, LaSalle JM, Tost J, Czamara D, Fernández MF, Gómez-Martín A, Craig JM, Gonzalez-Alzaga B, Schmidt RJ, Dou JF, Muggli E, Lacasaña M, Vrijheid M, Marsit CJ, Karagas MR, Räikkönen K, Bouchard L, Heude B, Santa-Marina L, Bustamante M, Hivert MF, Bilbao JR. A meta-analysis of pre-pregnancy maternal body mass index and placental DNA methylation identifies 27 CpG sites with implications for mother-child health. Commun Biol 2022; 5:1313. [PMID: 36446949 PMCID: PMC9709064 DOI: 10.1038/s42003-022-04267-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/16/2022] [Indexed: 12/05/2022] Open
Abstract
Higher maternal pre-pregnancy body mass index (ppBMI) is associated with increased neonatal morbidity, as well as with pregnancy complications and metabolic outcomes in offspring later in life. The placenta is a key organ in fetal development and has been proposed to act as a mediator between the mother and different health outcomes in children. The overall aim of the present work is to investigate the association of ppBMI with epigenome-wide placental DNA methylation (DNAm) in 10 studies from the PACE consortium, amounting to 2631 mother-child pairs. We identify 27 CpG sites at which we observe placental DNAm variations of up to 2.0% per 10 ppBMI-unit. The CpGs that are differentially methylated in placenta do not overlap with CpGs identified in previous studies in cord blood DNAm related to ppBMI. Many of the identified CpGs are located in open sea regions, are often close to obesity-related genes such as GPX1 and LGR4 and altogether, are enriched in cancer and oxidative stress pathways. Our findings suggest that placental DNAm could be one of the mechanisms by which maternal obesity is associated with metabolic health outcomes in newborns and children, although further studies will be needed in order to corroborate these findings.
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Affiliation(s)
- Nora Fernandez-Jimenez
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU) and Biocruces-Bizkaia Health Research Institute, Leioa, Basque Country, Spain
| | - Ruby Fore
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Ariadna Cilleros-Portet
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU) and Biocruces-Bizkaia Health Research Institute, Leioa, Basque Country, Spain
| | - Johanna Lepeule
- University Grenoble Alpes, Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, IAB, Grenoble, France
| | - Patrice Perron
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke (CHUS), Sherbrooke, QC, Canada
| | - Tuomas Kvist
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Fu-Ying Tian
- Gangarosa Department of Environmental Health, Rollins School of Public Health at Emory University, Atlanta, GA, USA
| | - Corina Lesseur
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alexandra M Binder
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Manuel Lozano
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain
- Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, Universitat de València, Valencia, Spain
| | - Jordi Martorell-Marugán
- Department of Statistics and Operations Research, University of Granada, Granada, Spain
- Bioinformatics Unit. GENYO, Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, PTS Granada, Granada, Spain
| | - Yuk J Loke
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
| | - Kelly M Bakulski
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Yihui Zhu
- Department of Medical Microbiology and Immunology, MIND Institute, Genome Center, University of California, Davis, CA, USA
| | - Anne Forhan
- Université de Paris, Centre for Research in Epidemiology and Statistics (CRESS), INSERM, INRAE, Paris, France
| | - Sara Sammallahti
- Department of Child and Adolescent Psychiatry and Psychology, Erasmus MC, Rotterdam, The Netherlands
| | - Todd M Everson
- Gangarosa Department of Environmental Health, Rollins School of Public Health at Emory University, Atlanta, GA, USA
- Department of Epidemiology, Rollins School of Public health at Emory University, Atlanta, GA, USA
| | - Jia Chen
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Karin B Michels
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
- Institute for Prevention and Cancer Epidemiology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Thalia Belmonte
- Health Research Institute of Asturias, ISPA and Biomedical Research and Innovation Institute of Cadiz (INiBICA), Research Unit, Puerta del Mar University Hospital, Cadiz, Spain
| | - Pedro Carmona-Sáez
- Department of Statistics and Operations Research, University of Granada, Granada, Spain
- Bioinformatics Unit. GENYO, Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, PTS Granada, Granada, Spain
| | - Jane Halliday
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
| | - M Daniele Fallin
- Wendy Klag Center for Autism and Developmental Disabilities, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Janine M LaSalle
- Department of Medical Microbiology and Immunology, MIND Institute, Genome Center, University of California, Davis, CA, USA
| | - Jorg Tost
- Laboratory for Epigenetics & Environment, Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Evry, France
| | - Darina Czamara
- Max-Planck-Institute of Psychiatry, Department of Translational Research in Psychiatry, Munich, Germany
| | - Mariana F Fernández
- University of Granada, Center for Biomedical Research (CIBM), Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Antonio Gómez-Martín
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Andalusian School of Public Health (EASP), Granada, Spain
| | - Jeffrey M Craig
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Geelong, Australia
| | - Beatriz Gonzalez-Alzaga
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Andalusian School of Public Health (EASP), Granada, Spain
| | - Rebecca J Schmidt
- Department of Public Health Sciences and the MIND Institute, University of California Davis School of Medicine, Davis, CA, USA
| | - John F Dou
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Evelyne Muggli
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
| | - Marina Lacasaña
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Andalusian School of Public Health (EASP), Granada, Spain
| | - Martine Vrijheid
- CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Carmen J Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health at Emory University, Atlanta, GA, USA
- Department of Epidemiology, Rollins School of Public health at Emory University, Atlanta, GA, USA
| | - Margaret R Karagas
- Department of Biochemistry and Functional Genomics, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - Katri Räikkönen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Luigi Bouchard
- Department of Biochemistry and Functional Genomics, Universite de Sherbrooke, Sherbrooke, QC, Canada
- Department of Laboratory Medicine, CIUSSS du Saguenay-Lac-St-Jean - Hôpital Universitaire de Chicoutimi, Chicoutimi, QC, Canada
| | - Barbara Heude
- Université de Paris, Centre for Research in Epidemiology and Statistics (CRESS), INSERM, INRAE, Paris, France
| | - Loreto Santa-Marina
- CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Biodonostia, Epidemiology and Public Health Area, Environmental Epidemiology and Child Development Group, 20014, San Sebastian, Basque Country, Spain
- Health Department of Basque Government, Sub-directorate of Public Health of Gipuzkoa, San Sebastian, Basque Country, Spain
| | - Mariona Bustamante
- CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Marie-France Hivert
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke (CHUS), Sherbrooke, QC, Canada
- Diabetes Unit, Massachusetts General Hospital, Boston, MA, USA
| | - Jose Ramon Bilbao
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU) and Biocruces-Bizkaia Health Research Institute, Leioa, Basque Country, Spain.
- CIBER of diabetes and associated metabolic disorders (CIBERDEM), Madrid, Spain.
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Gil GP, Ananina G, Maschietto M, Lima SCS, da Silva Costa SM, Baptista LDC, Ito MT, Costa FF, Costa ML, de Melo MB. Epigenetic analysis in placentas from sickle cell disease patients reveals a hypermethylation profile. PLoS One 2022; 17:e0274762. [PMID: 36129958 PMCID: PMC9491616 DOI: 10.1371/journal.pone.0274762] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/05/2022] [Indexed: 11/25/2022] Open
Abstract
Pregnancy in Sickle Cell Disease (SCD) women is associated to increased risk of clinical and obstetrical complications. Placentas from SCD pregnancies can present increased abnormal findings, which may lead to placental insufficiency, favoring adverse perinatal outcome. These placental abnormalities are well known and reported, however little is known about the molecular mechanisms, such as epigenetics. Thus, our aim was to evaluate the DNA methylation profile in placentas from women with SCD (HbSS and HbSC genotypes), compared to uncomplicated controls (HbAA). We included in this study 11 pregnant women with HbSS, 11 with HbSC and 21 with HbAA genotypes. Illumina Methylation EPIC BeadChip was used to assess the whole placental DNA methylation. Pyrosequencing was used for array data validation and qRT-PCR was applied for gene expression analysis. Our results showed high frequency of hypermethylated CpGs sites in HbSS and HbSC groups with 73.5% and 76.2% respectively, when compared with the control group. Differentially methylated regions (DMRs) also showed an increased hypermethylation status for the HbSS (89%) and HbSC (86%) groups, when compared with the control group methylation data. DMRs were selected for methylation validation (4 DMRs-HbSS and 3 DMRs the HbSC groups) and after analyses three were validated in the HbSS group, and none in the HbSC group. The gene expression analysis showed differential expression for the PTGFR (-2.97-fold) and GPR56 (3.0-fold) genes in the HbSS group, and for the SPOCK1 (-2.40-fold) and ADCY4 (1.80-fold) genes in the HbSC group. Taken together, these data strongly suggest that SCD (HbSS and HbSC genotypes) can alter placental DNA methylation and lead to gene expression changes. These changes possibly contribute to abnormal placental development and could impact in the clinical course, especially for the fetus, possibly leading to increased risk of abortion, fetal growth restriction (FGR), stillbirth, small for gestational age newborns and prematurity.
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Affiliation(s)
- Gislene Pereira Gil
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - Galina Ananina
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | | | | | - Sueli Matilde da Silva Costa
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - Leticia de Carvalho Baptista
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - Mirta Tomie Ito
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | | | - Maria Laura Costa
- Department of Obstetrics and Gynecology, University of Campinas, Campinas, São Paulo, Brazil
| | - Mônica Barbosa de Melo
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
- * E-mail:
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7
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Choudhury J, Pandey D, Chaturvedi PK, Gupta S. Epigenetic regulation of epithelial to mesenchymal transition: a trophoblast perspective. Mol Hum Reprod 2022; 28:6572349. [PMID: 35451485 DOI: 10.1093/molehr/gaac013] [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: 02/11/2022] [Revised: 03/31/2022] [Indexed: 11/12/2022] Open
Abstract
Epigenetic changes alter expression of genes at both pre- and post-transcriptional levels without changing their DNA sequence. Accumulating evidence suggests that such changes can modify cellular behaviour and characteristics required during development and in response to various extracellular stimuli. Trophoblast cells develop from the outermost trophectoderm layer of the blastocyst and undergo many phenotypic changes as the placenta develops. One such phenotypic change is differentiation of the epithelial natured cytotrophoblasts into the mesenchymal natured extravillous trophoblasts. The extravillous trophoblasts are primarily responsible for invading into the maternal decidua and thus establishing connection with the maternal spiral arteries. Any dysregulation of this process can have adverse effects on the pregnancy outcome. Hence, tight regulation of this epithelial-mesenchymal transition is critical for successful pregnancy. This review summarizes the recent research on the epigenetic regulation of the epithelial-mesenchymal transition occurring in the trophoblast cells during placental development. The functional significance of chemical modifications of DNA and histone, which regulate transcription, as well as non-coding RNAs, which control gene expression post-transcriptionally, is discussed in relation to trophoblast biology.
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Affiliation(s)
- Jaganmoy Choudhury
- Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi-, 110029, India
| | - Deepak Pandey
- Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi-, 110029, India
| | - Pradeep Kumar Chaturvedi
- Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi-, 110029, India
| | - Surabhi Gupta
- Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi-, 110029, India
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Ronkainen J, Heiskala A, Vehmeijer FO, Lowry E, Caramaschi D, Estrada Gutierrez G, Heiss JA, Hummel N, Keikkala E, Kvist T, Kupsco A, Melton PE, Pesce G, Soomro MH, Vives-Usano M, Baiz N, Binder E, Czamara D, Guxens M, Mustaniemi S, London SJ, Rauschert S, Vääräsmäki M, Vrijheid M, Ziegler AG, Annesi-Maesano I, Bustamante M, Huang RC, Hummel S, Just AC, Kajantie E, Lahti J, Lawlor D, Räikkönen K, Järvelin MR, Felix JF, Sebert S. Maternal haemoglobin levels in pregnancy and child DNA methylation: a study in the pregnancy and childhood epigenetics consortium. Epigenetics 2022; 17:19-31. [PMID: 33331245 PMCID: PMC8813068 DOI: 10.1080/15592294.2020.1864171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/26/2020] [Accepted: 12/08/2020] [Indexed: 01/05/2023] Open
Abstract
Altered maternal haemoglobin levels during pregnancy are associated with pre-clinical and clinical conditions affecting the fetus. Evidence from animal models suggests that these associations may be partially explained by differential DNA methylation in the newborn with possible long-term consequences. To test this in humans, we meta-analyzed the epigenome-wide associations of maternal haemoglobin levels during pregnancy with offspring DNA methylation in 3,967 newborn cord blood and 1,534 children and 1,962 adolescent whole-blood samples derived from 10 cohorts. DNA methylation was measured using Illumina Infinium Methylation 450K or MethylationEPIC arrays covering 450,000 and 850,000 methylation sites, respectively. There was no statistical support for the association of maternal haemoglobin levels with offspring DNA methylation either at individual methylation sites or clustered in regions. For most participants, maternal haemoglobin levels were within the normal range in the current study, whereas adverse perinatal outcomes often arise at the extremes. Thus, this study does not rule out the possibility that associations with offspring DNA methylation might be seen in studies with more extreme maternal haemoglobin levels.
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Affiliation(s)
- Justiina Ronkainen
- Center for Life Course Health Research, University of Oulu, Oulu, Finland
| | - Anni Heiskala
- Center for Life Course Health Research, University of Oulu, Oulu, Finland
| | - Florianne O.L. Vehmeijer
- Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Estelle Lowry
- Center for Life Course Health Research, University of Oulu, Oulu, Finland
- School of Natural and Built Environment, Queen’s University Belfast, Belfast, Northern Ireland
| | - Doretta Caramaschi
- Medical Research Council Integrative Epidemiology Unit, Bristol Medical School, Population Health Science, University of Bristol, Bristol, UK
| | | | - Jonathan A. Heiss
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nadine Hummel
- Institute of Diabetes Research, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Elina Keikkala
- Department of Obstetrics and Gynecology, PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland
| | - Tuomas Kvist
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Finland
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, USA
| | - Allison Kupsco
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Phillip E. Melton
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Bentley, Australia
- School of Biomedical Sciences, Faculty of Health and Medical Sciences, The University of Western Australia, Crawley, Australia
| | - Giancarlo Pesce
- Sorbonne Université, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Paris, France
- Epidemiology of Allergic and Respiratory Diseases Department (EPAR), Institut National De La Santé Et De La Recherche Médicale (INSERM) UMR-S 1136, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Team EPAR, Paris, France
| | - Munawar H. Soomro
- Sorbonne Université, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Paris, France
- Epidemiology of Allergic and Respiratory Diseases Department (EPAR), Institut National De La Santé Et De La Recherche Médicale (INSERM) UMR-S 1136, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Team EPAR, Paris, France
| | - Marta Vives-Usano
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain
- CIBER Epidemiología Y Salud Pública (CIBERESP), Madrid, Spain
| | - Nour Baiz
- Sorbonne Université, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Paris, France
- Epidemiology of Allergic and Respiratory Diseases Department (EPAR), Institut National De La Santé Et De La Recherche Médicale (INSERM) UMR-S 1136, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Team EPAR, Paris, France
| | - Elisabeth Binder
- Department of Translational Research in Psychiatry, Max-Planck-Institute of Psychiatry, Munich, Germany
| | - Darina Czamara
- Department of Translational Research in Psychiatry, Max-Planck-Institute of Psychiatry, Munich, Germany
| | - Mònica Guxens
- CIBER Epidemiología Y Salud Pública (CIBERESP), Madrid, Spain
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Centre, Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Sanna Mustaniemi
- Department of Obstetrics and Gynecology, PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland
| | - Stephanie J. London
- National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, WashingtonDC, USA
| | | | - Marja Vääräsmäki
- Department of Obstetrics and Gynecology, PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland
| | - Martine Vrijheid
- CIBER Epidemiología Y Salud Pública (CIBERESP), Madrid, Spain
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Anette-G. Ziegler
- Institute of Diabetes Research, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
- Forschergruppe Diabetes, Technical University Munich, Klinikum Rechts Der Isar, Munich-Neuherberg, Germany
- Forschergruppe Diabetes e.V., Helmholtz Zentrum München, Munich-Neuherberg, Germany
| | - Isabella Annesi-Maesano
- Sorbonne Université, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Paris, France
- Epidemiology of Allergic and Respiratory Diseases Department (EPAR), Institut National De La Santé Et De La Recherche Médicale (INSERM) UMR-S 1136, Institut Pierre Louis D’épidémiologie Et De Santé Publique (IPLESP), Team EPAR, Paris, France
| | - Mariona Bustamante
- CIBER Epidemiología Y Salud Pública (CIBERESP), Madrid, Spain
- ISGlobal, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Rae-Chi Huang
- Telethon Kids Institute, University of Western Australia, Australia
| | - Sandra Hummel
- Institute of Diabetes Research, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
- Forschergruppe Diabetes, Technical University Munich, Klinikum Rechts Der Isar, Munich-Neuherberg, Germany
- Forschergruppe Diabetes e.V., Helmholtz Zentrum München, Munich-Neuherberg, Germany
| | - Allan C. Just
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Eero Kajantie
- Department of Obstetrics and Gynecology, PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Children’s Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Jari Lahti
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Finland
- Turku Institute for Advanced Studies, University of Turku, Turku, Finland
| | - Deborah Lawlor
- Medical Research Council Integrative Epidemiology Unit, Bristol Medical School, Population Health Science, University of Bristol, Bristol, UK
| | - Katri Räikkönen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Finland
| | - Marjo-Riitta Järvelin
- Center for Life Course Health Research, University of Oulu, Oulu, Finland
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Janine F. Felix
- Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Sylvain Sebert
- Center for Life Course Health Research, University of Oulu, Oulu, Finland
- Department for Genomics of Common Diseases, School of Medicine, Imperial College London, LondonUK
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9
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Matsui H, Iriyama T, Sayama S, Inaoka N, Suzuki K, Yoshikawa M, Ichinose M, Sone K, Kumasawa K, Nagamatsu T, Fujisawa T, Naguro I, Ichijo H, Fujii T, Osuga Y. Elevated placental histone H3K4 methylation via upregulated histone methyltransferases SETD1A and SMYD3 in preeclampsia and its possible involvement in hypoxia-induced pathophysiological process. Placenta 2021; 115:60-69. [PMID: 34560329 DOI: 10.1016/j.placenta.2021.09.009] [Citation(s) in RCA: 3] [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: 04/29/2021] [Revised: 08/19/2021] [Accepted: 09/07/2021] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Disturbance in placental epigenetic regulation contributes to the pathogenesis of preeclampsia (PE). Although aberrant placental DNA methylation status in PE has been thoroughly studied, the role of histone modifications, including histone methylation, in PE remains unclear. Moreover, no study has ever reported the association between PE and placental histone methylation status by focusing on histone methyltransferases. The present study aimed to investigate the possible involvement of placental epigenetic regulation by histone methylation via histone methyltransferases in the pathophysiology of PE. METHODS Placental mRNA expression of histone methyltransferases was examined using quantitative RT-PCR. Protein expression of histone methyltransferases and histone methylation status in placentas and trophoblast cell lines were assessed by immunoblotting and immunohistochemistry. RESULTS Expression profile of histone methyltransferases in the placentas using quantitative RT-PCR revealed that the mRNA expression levels of histone 3 lysine 4 (H3K4) methyltransferases, SETD1A and SMYD3, were significantly increased in placentas from PE patients. Immunoblotting and immunohistochemistry revealed that not only protein expression levels of SETD1A and SMYD3, but also H3K4 methylation status was increased in the trophoblasts from PE placentas. In vitro studies using HTR-8/SV-neo and BeWo cells showed that hypoxia induced the expression levels of SETD1A and SMYD3, and subsequently enhanced H3K4 methylation. Furthermore, the overexpression of SETD1A and SMYD3 in HTR-8/SV-neo cells enhanced H3K4 methylation in response to hypoxia. DISCUSSION Our study results suggest that placental epigenetic alteration by enhanced histone H3K4 methylation through upregulated SETD1A and SMYD3 might play a role in the pathophysiological process of PE associated with hypoxia.
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Affiliation(s)
- Haruka Matsui
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takayuki Iriyama
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Seisuke Sayama
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Naoko Inaoka
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kensuke Suzuki
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Midori Yoshikawa
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Mari Ichinose
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kenbun Sone
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Keiichi Kumasawa
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takao Fujisawa
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Isao Naguro
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hidenori Ichijo
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Sanno Hospital, 8-10-16 Akasaka, Minato-ku, Tokyo, 107-0052, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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10
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Quan Y, Zhang X, Butler W, Du Z, Wang M, Liu Y, Ping H. The role of N-cadherin/c-Jun/NDRG1 axis in the progression of prostate cancer. Int J Biol Sci 2021; 17:3288-3304. [PMID: 34512147 PMCID: PMC8416735 DOI: 10.7150/ijbs.63300] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/06/2021] [Indexed: 02/03/2023] Open
Abstract
The dysregulation of androgen receptor (AR) signaling is a critical event in the progression of prostate cancer (PCa) and hormone therapy consisting of androgen deprivation (ADT) or AR inhibition is therefore used to treat advanced cases. It is known that N-cadherin becomes upregulated following ADT and can directly induce PCa transformation to the castration-resistant stage (CRPC). However, the relationship between AR and N-cadherin is unclear and may promote better understanding of CRPC pathogenesis and progression. Here, we demonstrate a new axis of N-cadherin/c-Jun/N-myc downstream regulated gene 1 (NDRG1) that N-cadherin promotes c-Jun expression and suppresses NDRG1 to promote invasion and migration of PCa cells through epithelial to mesenchymal transition (EMT). Targeting N-cadherin in combination with enzalutamide (ENZ) treatment synergistically suppressed PC3 cell proliferation in vivo and in vitro. Further studies showed that compared to lower Gleason score (GS) (GS < 7) cases, high GS (GS > 7) cases exhibited elevated N-cadherin expression and reduced NDRG1 expression, corroborating our in vitro observations. We further demonstrate that c-Jun, AR, and DNA methyltransferase-1 (DNMT1) form a complex in the 12-O-tetradecanoyl phorbol-13-acetate (TPA) response elements (TREs) region of the NDRG1 promoter, which suppresses NDRG1 transcription through DNA hypermethylation. In conclusion, we demonstrate an underlying mechanism for how N-cadherin collaborates with AR and NDRG1 to promote CRPC progression. Controlling N-cadherin/c-Jun/NDRG1 axis may help to overcome resistance to commonly used hormone therapy to improve long-term patient outcomes.
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Affiliation(s)
- Yongjun Quan
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Xiaodong Zhang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - William Butler
- Department of Pathology, Duke University School of Medicine, Durham NC 27710, USA
| | - Zhen Du
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Mingdong Wang
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Yuexin Liu
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Hao Ping
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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11
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The Impact of Hypoxia in Early Pregnancy on Placental Cells. Int J Mol Sci 2021; 22:ijms22189675. [PMID: 34575844 PMCID: PMC8466283 DOI: 10.3390/ijms22189675] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/04/2021] [Accepted: 09/05/2021] [Indexed: 12/14/2022] Open
Abstract
Oxygen levels in the placental microenvironment throughout gestation are not constant, with severe hypoxic conditions present during the first trimester. This hypoxic phase overlaps with the most critical stages of placental development, i.e., blastocyst implantation, cytotrophoblast invasion, and spiral artery remodeling initiation. Dysregulation of any of these steps in early gestation can result in pregnancy loss and/or adverse pregnancy outcomes. Hypoxia has been shown to regulate not only the self-renewal, proliferation, and differentiation of trophoblast stem cells and progenitor cells, but also the recruitment, phenotype, and function of maternal immune cells. In this review, we will summarize how oxygen levels in early placental development determine the survival, fate, and function of several important cell types, e.g., trophoblast stem cells, extravillous trophoblasts, syncytiotrophoblasts, uterine natural killer cells, Hofbauer cells, and decidual macrophages. We will also discuss the cellular mechanisms used to cope with low oxygen tensions, such as the induction of hypoxia-inducible factor (HIF) or mammalian target of rapamycin (mTOR) signals, regulation of the metabolic pathway, and adaptation to autophagy. Understanding the beneficial roles of hypoxia in early placental development will provide insights into the root cause(s) of some pregnancy disorders, such as spontaneous abortion, preeclampsia, and intrauterine growth restriction.
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12
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Wang P, Wang B, Zhang Z, Wang Z. Identification of inflammation-related DNA methylation biomarkers in periodontitis patients based on weighted co-expression analysis. Aging (Albany NY) 2021; 13:19678-19695. [PMID: 34347624 PMCID: PMC8386560 DOI: 10.18632/aging.203378] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/04/2021] [Indexed: 04/18/2023]
Abstract
Evidence from past research has shown that DNA methylation plays a key role in the pathogenesis of periodontitis, regulating gene expression levels and thereby affecting the occurrence of various diseases. Three sample sets of methylation data and gene expression data were downloaded from Gene Expression Omnibus (GEO) database. A diagnostic classifier is established based on gene expression data and CpG methylation data. Abnormal expression of immune-related pathways and methyltransferase-related genes in patients with periodontitis was detected. A total of 8,029 differentially expressed CpG (DMP) was annotated to the promoter region of 4,940 genes, of which 295 immune genes were significantly enriched. The CpG sites of 23 differentially co-expressed immune gene promoter regions were identified, and 13 CpG were generally hypermethylated in healthy group samples, while some were methylated in most patients. Five CpGs were screened as robust periodontitis biomarkers. The accuracy in the training data set, the two external verification data sets, and in the transcriptome was 95.5%, 80% and 78.3%, and 82.6%, respectively. This study provided new features for the diagnosis of periodontitis, and contributed to the personalized treatment of periodontitis.
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Affiliation(s)
- Pengcheng Wang
- Department of Stomatology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
- Department of Stomatology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Bingbing Wang
- Department of Immunology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Beijing Key Laboratory for Cancer Invasion and Metastasis, Department of Oncology, Capital Medical University, Beijing 100069, China
| | - Zheng Zhang
- Department of Periodontology, Tianjin Stomatological Hospital and Tianjin Key Laboratory of Oral Function Reconstruction, Hospital of Stomatology, Nankai University, Tianjin 300041, China
| | - Zuomin Wang
- Department of Stomatology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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13
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Li Y, Wu H, Wang Q, Xu S. ZNF217: the cerberus who fails to guard the gateway to lethal malignancy. Am J Cancer Res 2021; 11:3378-3405. [PMID: 34354851 PMCID: PMC8332857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 05/14/2021] [Indexed: 06/13/2023] Open
Abstract
The aberrant expression of the zinc finger protein 217 (ZNF217) promotes multiple malignant phenotypes, such as replicative immortality, maintenance of proliferation, malignant heterogeneity, metastasis, and cell death resistance, via diverse mechanisms, including transcriptional activation, mRNA N6-methyladenosine (m6A) regulation, and protein interactions. The induction of these cellular processes by ZNF217 leads to therapeutic resistance and patients' poor outcomes. However, few ZNF217 related clinical applications or trials, have been reported. Moreover, looming observations about ZNF217 roles in m6A regulation and cancer immune response triggered significant attention while lacking critical evidence. Thus, in this review, we revisit the literature about ZNF217 and emphasize its importance as a prognostic biomarker for early prevention and as a therapeutic target.
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Affiliation(s)
- Yingpu Li
- Department of Breast Surgery, Harbin Medical University Cancer HospitalHarbin, China
| | - Hao Wu
- Sino-Russian Medical Research Center, Harbin Medical University Cancer HospitalHarbin, China
- Heilongjiang Academy of Medical SciencesHarbin, China
| | - Qin Wang
- Department of Breast Surgery, Harbin Medical University Cancer HospitalHarbin, China
- Sino-Russian Medical Research Center, Harbin Medical University Cancer HospitalHarbin, China
- Heilongjiang Academy of Medical SciencesHarbin, China
| | - Shouping Xu
- Department of Breast Surgery, Harbin Medical University Cancer HospitalHarbin, China
- Sino-Russian Medical Research Center, Harbin Medical University Cancer HospitalHarbin, China
- Heilongjiang Academy of Medical SciencesHarbin, China
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14
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Jaremek A, Jeyarajah MJ, Jaju Bhattad G, Renaud SJ. Omics Approaches to Study Formation and Function of Human Placental Syncytiotrophoblast. Front Cell Dev Biol 2021; 9:674162. [PMID: 34211975 PMCID: PMC8240757 DOI: 10.3389/fcell.2021.674162] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/24/2021] [Indexed: 01/12/2023] Open
Abstract
Proper development of the placenta is vital for pregnancy success. The placenta regulates exchange of nutrients and gases between maternal and fetal blood and produces hormones essential to maintain pregnancy. The placental cell lineage primarily responsible for performing these functions is a multinucleated entity called syncytiotrophoblast. Syncytiotrophoblast is continuously replenished throughout pregnancy by fusion of underlying progenitor cells called cytotrophoblasts. Dysregulated syncytiotrophoblast formation disrupts the integrity of the placental exchange surface, which can be detrimental to maternal and fetal health. Moreover, various factors produced by syncytiotrophoblast enter into maternal circulation, where they profoundly impact maternal physiology and are promising diagnostic indicators of pregnancy health. Despite the multifunctional importance of syncytiotrophoblast for pregnancy success, there is still much to learn about how its formation is regulated in normal and diseased states. ‘Omics’ approaches are gaining traction in many fields to provide a more holistic perspective of cell, tissue, and organ function. Herein, we review human syncytiotrophoblast development and current model systems used for its study, discuss how ‘omics’ strategies have been used to provide multidimensional insights into its formation and function, and highlight limitations of current platforms as well as consider future avenues for exploration.
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Affiliation(s)
- Adam Jaremek
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | - Mariyan J Jeyarajah
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | - Gargi Jaju Bhattad
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | - Stephen J Renaud
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Children's Health Research Institute, Lawson Health Research Institute, London, ON, Canada
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15
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Yong HEJ, Chan SY. Current approaches and developments in transcript profiling of the human placenta. Hum Reprod Update 2021; 26:799-840. [PMID: 33043357 PMCID: PMC7600289 DOI: 10.1093/humupd/dmaa028] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The placenta is the active interface between mother and foetus, bearing the molecular marks of rapid development and exposures in utero. The placenta is routinely discarded at delivery, providing a valuable resource to explore maternal-offspring health and disease in pregnancy. Genome-wide profiling of the human placental transcriptome provides an unbiased approach to study normal maternal–placental–foetal physiology and pathologies. OBJECTIVE AND RATIONALE To date, many studies have examined the human placental transcriptome, but often within a narrow focus. This review aims to provide a comprehensive overview of human placental transcriptome studies, encompassing those from the cellular to tissue levels and contextualize current findings from a broader perspective. We have consolidated studies into overarching themes, summarized key research findings and addressed important considerations in study design, as a means to promote wider data sharing and support larger meta-analysis of already available data and greater collaboration between researchers in order to fully capitalize on the potential of transcript profiling in future studies. SEARCH METHODS The PubMed database, National Center for Biotechnology Information and European Bioinformatics Institute dataset repositories were searched, to identify all relevant human studies using ‘placenta’, ‘decidua’, ‘trophoblast’, ‘transcriptome’, ‘microarray’ and ‘RNA sequencing’ as search terms until May 2019. Additional studies were found from bibliographies of identified studies. OUTCOMES The 179 identified studies were classifiable into four broad themes: healthy placental development, pregnancy complications, exposures during pregnancy and in vitro placental cultures. The median sample size was 13 (interquartile range 8–29). Transcriptome studies prior to 2015 were predominantly performed using microarrays, while RNA sequencing became the preferred choice in more recent studies. Development of fluidics technology, combined with RNA sequencing, has enabled transcript profiles to be generated of single cells throughout pregnancy, in contrast to previous studies relying on isolated cells. There are several key study aspects, such as sample selection criteria, sample processing and data analysis methods that may represent pitfalls and limitations, which need to be carefully considered as they influence interpretation of findings and conclusions. Furthermore, several areas of growing importance, such as maternal mental health and maternal obesity are understudied and the profiling of placentas from these conditions should be prioritized. WIDER IMPLICATIONS Integrative analysis of placental transcriptomics with other ‘omics’ (methylome, proteome and metabolome) and linkage with future outcomes from longitudinal studies is crucial in enhancing knowledge of healthy placental development and function, and in enabling the underlying causal mechanisms of pregnancy complications to be identified. Such understanding could help in predicting risk of future adversity and in designing interventions that can improve the health outcomes of both mothers and their offspring. Wider collaboration and sharing of placental transcriptome data, overcoming the challenges in obtaining sufficient numbers of quality samples with well-defined clinical characteristics, and dedication of resources to understudied areas of pregnancy will undoubtedly help drive the field forward.
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Affiliation(s)
- Hannah E J Yong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore
| | - Shiao-Yng Chan
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore.,Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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16
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Apicella C, Ruano CSM, Jacques S, Gascoin G, Méhats C, Vaiman D, Miralles F. Urothelial Cancer Associated 1 (UCA1) and miR-193 Are Two Non-coding RNAs Involved in Trophoblast Fusion and Placental Diseases. Front Cell Dev Biol 2021; 9:633937. [PMID: 34055770 PMCID: PMC8155540 DOI: 10.3389/fcell.2021.633937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/19/2021] [Indexed: 11/13/2022] Open
Abstract
A bioinformatics screen for non-coding genes was performed from microarrays analyzing on the one hand trophoblast fusion in the BeWo cell model, and on the other hand, placental diseases (preeclampsia and Intra-Uterine Growth Restriction). Intersecting the deregulated genes allowed to identify two miRNA (mir193b and miR365a) and one long non-coding RNA (UCA1) that are pivotal for trophoblast fusion, and deregulated in placental diseases. We show that miR-193b is a hub for the down-regulation of 135 cell targets mainly involved in cell cycle progression and energy usage/nutrient transport. UCA1 was explored by siRNA knock-down in the BeWo cell model. We show that its down-regulation is associated with the deregulation of important trophoblast physiology genes, involved in differentiation, proliferation, oxidative stress, vacuolization, membrane repair and endocrine production. Overall, UCA1 knockdown leads to an incomplete gene expression profile modification of trophoblast cells when they are induced to fuse into syncytiotrophoblast. Then we performed the same type of analysis in cells overexpressing one of the two major isoforms of the STOX1 transcription factor, STOX1A and STOX1B (associated previously to impaired trophoblast fusion). We could show that when STOX1B is abundant, the effects of UCA1 down-regulation on forskolin response are alleviated.
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Affiliation(s)
- Clara Apicella
- Institut Cochin, Université de Paris, U1016 INSERM, UMR 8104, CNRS, Paris, France
| | - Camino S M Ruano
- Institut Cochin, Université de Paris, U1016 INSERM, UMR 8104, CNRS, Paris, France
| | - Sébastien Jacques
- Institut Cochin, Université de Paris, U1016 INSERM, UMR 8104, CNRS, Paris, France
| | - Géraldine Gascoin
- Unité Mixte de Recherche MITOVASC, Équipe Mitolab, CNRS 6015, INSERM U1083, Université d'Angers, Angers, France.,Réanimation et Médecine Néonatales, Centre Hospitalier Universitaire, Angers, France
| | - Céline Méhats
- Institut Cochin, Université de Paris, U1016 INSERM, UMR 8104, CNRS, Paris, France
| | - Daniel Vaiman
- Institut Cochin, Université de Paris, U1016 INSERM, UMR 8104, CNRS, Paris, France
| | - Francisco Miralles
- Institut Cochin, Université de Paris, U1016 INSERM, UMR 8104, CNRS, Paris, France
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17
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Yuan V, Hui D, Yin Y, Peñaherrera MS, Beristain AG, Robinson WP. Cell-specific characterization of the placental methylome. BMC Genomics 2021; 22:6. [PMID: 33407091 PMCID: PMC7788826 DOI: 10.1186/s12864-020-07186-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/26/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND DNA methylation (DNAm) profiling has emerged as a powerful tool for characterizing the placental methylome. However, previous studies have focused primarily on whole placental tissue, which is a mixture of epigenetically distinct cell populations. Here, we present the first methylome-wide analysis of first trimester (n = 9) and term (n = 19) human placental samples of four cell populations: trophoblasts, Hofbauer cells, endothelial cells, and stromal cells, using the Illumina EPIC methylation array, which quantifies DNAm at > 850,000 CpGs. RESULTS The most distinct DNAm profiles were those of placental trophoblasts, which are central to many pregnancy-essential functions, and Hofbauer cells, which are a rare fetal-derived macrophage population. Cell-specific DNAm occurs at functionally-relevant genes, including genes associated with placental development and preeclampsia. Known placental-specific methylation marks, such as those associated with genomic imprinting, repetitive element hypomethylation, and placental partially methylated domains, were found to be more pronounced in trophoblasts and often absent in Hofbauer cells. Lastly, we characterize the cell composition and cell-specific DNAm dynamics across gestation. CONCLUSIONS Our results provide a comprehensive analysis of DNAm in human placental cell types from first trimester and term pregnancies. This data will serve as a useful DNAm reference for future placental studies, and we provide access to this data via download from GEO (GSE159526), through interactive exploration from the web browser ( https://robinsonlab.shinyapps.io/Placental_Methylome_Browser/ ), and through the R package planet, which allows estimation of cell composition directly from placental DNAm data.
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Affiliation(s)
- Victor Yuan
- BC Children’s Hospital Research Institute, Vancouver, BC Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC Canada
| | - Desmond Hui
- BC Children’s Hospital Research Institute, Vancouver, BC Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC Canada
| | - Yifan Yin
- BC Children’s Hospital Research Institute, Vancouver, BC Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC Canada
| | - Maria S. Peñaherrera
- BC Children’s Hospital Research Institute, Vancouver, BC Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC Canada
| | - Alexander G. Beristain
- BC Children’s Hospital Research Institute, Vancouver, BC Canada
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC Canada
| | - Wendy P. Robinson
- BC Children’s Hospital Research Institute, Vancouver, BC Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC Canada
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18
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Ness C, Katta K, Garred Ø, Kumar T, Olstad OK, Petrovski G, Moe MC, Noer A. Integrated differential DNA methylation and gene expression of formalin-fixed paraffin-embedded uveal melanoma specimens identifies genes associated with early metastasis and poor prognosis. Exp Eye Res 2020; 203:108426. [PMID: 33387485 DOI: 10.1016/j.exer.2020.108426] [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: 04/06/2020] [Revised: 12/09/2020] [Accepted: 12/22/2020] [Indexed: 12/23/2022]
Abstract
PURPOSE Uveal melanoma (UM) is an aggressive malignancy, in which nearly 50% of the patients die from metastatic disease. Aberrant DNA methylation is recognized as an important epigenomic event in carcinogenesis. Formalin-fixed paraffin-embedded (FFPE) samples represent a valuable source of tumor tissue, and recent technology has enabled the use of these samples in genome-wide DNA methylation analyses. Our aim was to investigate differential DNA methylation in relation to histopathological classification and survival data. In addition we sought to identify aberrant DNA methylation of genes that could be associated with metastatic disease and poor survival. METHODS FFPE samples from UM patients (n = 23) who underwent enucleation of the eye in the period 1976-1989 were included. DNA methylation was assessed using the Illumina Infinium HumanMethylation450 array and coupled to histopathological data, Cancer Registry of Norway- (registered UM metastasis) and Norwegian Cause of Death Registry- (time and cause of death) data. Differential DNA methylation patterns contrasting histological classification, survival data and clustering properties were investigated. Survival groups were defined as "Early metastasis" (metastases and death within 2-5 years after enucleation, n = 8), "Late metastasis" (metastases and death within 9-21 years after enucleation, n = 7) and "No metastasis" (no detected metastases ≥18 years after enucleation, n = 8). A subset of samples were selected based on preliminary multi-dimensional scaling (MDS) plots, histopathological classification, chromosome 3 status, survival status and clustering properties; "Subset Early metastasis" (n = 4) vs "Subset No metastasis" (n = 4). Bioinformatics analyses were conducted in the R statistical software. Differentially methylated positions (DMPs) and differentially methylated regions (DMRs) in various comparisons were assessed. Gene expression of relevant subgroups was determined by microarray analysis and quantitative reverse-transcription polymerase chain reaction (qRT-PCR). RESULTS DNA methylation analyses identified 2 clusters that separated the samples according to chromosome 3 status. Cluster 1 consisted of samples (n = 5) with chromosome 3 disomy (D3), while Cluster 2 was comprised of samples (n = 15) with chromosome 3 monosomy (M3). 1212 DMRs and 9386 DMPs were identified in M3 vs D3. No clear clusters were formed based on our predefined survival groups ("Early", "Late", "No") nor histopathological classification (Epithelioid, Mixed, Spindle). We identified significant changes in DNA methylation (beta FC ≥ 0.2, adjusted p < 0.05) between two sample subsets (n = 8). "Subset Early metastasis" (n = 4) vs "Subset No metastasis" (n = 4) identified 348 DMPs and 36 DMRs, and their differential gene expression by microarray showed that 14 DMPs and 2 DMRs corresponded to changes in gene expression (FC ≥ 1.5, p < 0.05). RNF13, ZNF217 and HYAL1 were hypermethylated and downregulated in "Subset Early metastasis" vs "Subset No metastasis" and could be potential tumor suppressors. TMEM200C, RGS10, ADAM12 and PAM were hypomethylated and upregulated in "Subset Early metastasis vs "Subset No metastasis" and could be potential oncogenes and thus markers of early metastasis and poor prognosis in UM. CONCLUSIONS DNA methylation profiling showed differential clustering of samples according to chromosome 3 status: Cluster 1 (D3) and Cluster 2 (M3). Integrated differential DNA methylation and gene expression of two subsets of samples identified genes associated with early metastasis and poor prognosis. RNF13, ZNF217 and HYAL1 are hypermethylated and candidate tumor suppressors, while TMEM200C, RGS10, ADAM12 and PAM are hypomethylated and candidate oncogenes linked to early metastasis. UM FFPE samples represent a valuable source for methylome studies and enable long-time follow-up.
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Affiliation(s)
- Charlotte Ness
- Center for Eye Research, Department of Ophthalmology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Kirankumar Katta
- Center for Eye Research, Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
| | - Øystein Garred
- Department of Pathology, Oslo University Hospital, Norway
| | - Theresa Kumar
- Department of Pathology, Oslo University Hospital, Norway
| | | | - Goran Petrovski
- Center for Eye Research, Department of Ophthalmology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Morten C Moe
- Center for Eye Research, Department of Ophthalmology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Agate Noer
- Center for Eye Research, Department of Ophthalmology, Oslo University Hospital, Oslo, Norway.
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19
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Colson A, Sonveaux P, Debiève F, Sferruzzi-Perri AN. Adaptations of the human placenta to hypoxia: opportunities for interventions in fetal growth restriction. Hum Reprod Update 2020; 27:531-569. [PMID: 33377492 DOI: 10.1093/humupd/dmaa053] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/15/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The placenta is the functional interface between the mother and the fetus during pregnancy, and a critical determinant of fetal growth and life-long health. In the first trimester, it develops under a low-oxygen environment, which is essential for the conceptus who has little defense against reactive oxygen species produced during oxidative metabolism. However, failure of invasive trophoblasts to sufficiently remodel uterine arteries toward dilated vessels by the end of the first trimester can lead to reduced/intermittent blood flow, persistent hypoxia and oxidative stress in the placenta with consequences for fetal growth. Fetal growth restriction (FGR) is observed in ∼10% of pregnancies and is frequently seen in association with other pregnancy complications, such as preeclampsia (PE). FGR is one of the main challenges for obstetricians and pediatricians, as smaller fetuses have greater perinatal risks of morbidity and mortality and postnatal risks of neurodevelopmental and cardio-metabolic disorders. OBJECTIVE AND RATIONALE The aim of this review was to examine the importance of placental responses to changing oxygen environments during abnormal pregnancy in terms of cellular, molecular and functional changes in order to highlight new therapeutic pathways, and to pinpoint approaches aimed at enhancing oxygen supply and/or mitigating oxidative stress in the placenta as a mean of optimizing fetal growth. SEARCH METHODS An extensive online search of peer-reviewed articles using PubMed was performed with combinations of search terms including pregnancy, placenta, trophoblast, oxygen, hypoxia, high altitude, FGR and PE (last updated in May 2020). OUTCOMES Trophoblast differentiation and placental establishment are governed by oxygen availability/hypoxia in early pregnancy. The placental response to late gestational hypoxia includes changes in syncytialization, mitochondrial functions, endoplasmic reticulum stress, hormone production, nutrient handling and angiogenic factor secretion. The nature of these changes depends on the extent of hypoxia, with some responses appearing adaptive and others appearing detrimental to the placental support of fetal growth. Emerging approaches that aim to increase placental oxygen supply and/or reduce the impacts of excessive oxidative stress are promising for their potential to prevent/treat FGR. WIDER IMPLICATIONS There are many risks and challenges of intervening during pregnancy that must be considered. The establishment of human trophoblast stem cell lines and organoids will allow further mechanistic studies of the effects of hypoxia and may lead to advanced screening of drugs for use in pregnancies complicated by placental insufficiency/hypoxia. Since no treatments are currently available, a better understanding of placental adaptations to hypoxia would help to develop therapies or repurpose drugs to optimize placental function and fetal growth, with life-long benefits to human health.
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Affiliation(s)
- Arthur Colson
- Pole of Obstetrics, Institute of Experimental and Clinical Research (IREC), Université catholique de Louvain, Brussels, Belgium.,Pole of Pharmacology & Therapeutics, Institute of Experimental and Clinical Research (IREC), Université catholique de Louvain, Brussels, Belgium.,Department of Obstetrics, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Pierre Sonveaux
- Pole of Pharmacology & Therapeutics, Institute of Experimental and Clinical Research (IREC), Université catholique de Louvain, Brussels, Belgium
| | - Frédéric Debiève
- Pole of Obstetrics, Institute of Experimental and Clinical Research (IREC), Université catholique de Louvain, Brussels, Belgium.,Department of Obstetrics, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Amanda N Sferruzzi-Perri
- Department of Physiology, Development and Neuroscience, Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
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20
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Sun N, Chen H, Ma Y, Pang W, Wang X, Zhang Q, Gao L, Li W. H3K4me3-Mediated Upregulation of LncRNA-HEIPP in Preeclampsia Placenta Affects Invasion of Trophoblast Cells. Front Genet 2020; 11:559478. [PMID: 33424915 PMCID: PMC7793904 DOI: 10.3389/fgene.2020.559478] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 11/16/2020] [Indexed: 12/16/2022] Open
Abstract
Preeclampsia (PE) is a pregnancy-related disease defined as onset of hypertension and proteinuria after the 20th week of pregnancy, which causes most maternal and perinatal morbidity and mortality. Although placental dysfunction is considered as the main cause of PE, the exact pathogenesis of PE is not yet fully understood. Long non-coding RNAs (lncRNAs) are implicated in a broad range of physiological and pathological processes, including the occurrence of PE. In this study, we investigated the expression and functions of HIF-1α pathway-related lncRNA-HEIPP (high expression in PE placenta) in the pathogenesis of PE. The expression of lncRNA-HEIPP in the placenta from women who underwent PE was screened by lncRNA microarray and then verified using real-time polymerase chain reaction. Then, the methylation profile of the lncRNA-HEIPP promoter and the enrichment of H3K4me3 binding were assessed by bisulfite pyrosequencing and chromatin immunoprecipitation (ChIP)-quantitative polymerase chain reaction (qPCR) assay, respectively. It was found that the level of lncRNA-HEIPP in the PE placenta was significantly higher than that in normal placenta and was increased in HTR-8/SVneo human trophoblast cells upon hypoxia treatment. Moreover, we reported that H3K4me3 manifested significantly higher promoter occupancy on lncRNA-HEIPP promoter in HTR-8/SVneo cells upon hypoxia treatment and found that the downregulation of lncRNA-HEIPP promoted trophoblast invasion. Our findings suggested that the hypoxia-induced expression of lncRNA-HEIPP mediated by H3K4me3 modification in trophoblast may contribute to the pathogenesis of PE.
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Affiliation(s)
- Ningxia Sun
- Department of Reproductive Medicine, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Huaiyan Chen
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Yan Ma
- Department of Reproductive Medicine, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wenjuan Pang
- Department of Reproductive Medicine, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Xiang Wang
- Department of Reproductive Medicine, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Qing Zhang
- Department of Reproductive Medicine, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Lu Gao
- Department of Physiology, Second Military Medical University, Shanghai, China.,School of Medicine, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Wen Li
- Department of Reproductive Medicine, Changzheng Hospital, Second Military Medical University, Shanghai, China
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21
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Schoorlemmer J, Macías-Redondo S, Strunk M, Ramos-Ruíz R, Calvo P, Benito R, Paules C, Oros D. Altered DNA methylation in human placenta after (suspected) preterm labor. Epigenomics 2020; 12:1769-1782. [PMID: 33107765 DOI: 10.2217/epi-2019-0346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The aim of this study was to determine if alterations in DNA methylation in the human placenta would support suspected preterm labor as a pathologic insult associated with diminished placental health. Methods: We evaluated placental DNA methylation at seven loci differentially methylated in placental pathologies using targeted bisulfite sequencing, in placentas associated with preterm labor (term birth after suspected preterm labor [n = 15] and preterm birth [n = 15]), and controls (n = 15). Results: DNA methylation levels at the NCAM1 and PLAGL1 loci in placentas associated with preterm labor did differ significantly (p < 0.05) from controls. Discussion: Specific alterations in methylation patterns indicative of an unfavourable placental environment are associated with preterm labor per se and not restricted to preterm birth.
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Affiliation(s)
- Jon Schoorlemmer
- Instituto Aragonés de Ciencias de la Salud (IACS) & Aragon Institute for Health Research (IIS Aragón), Zaragoza, Spain.,Placental pathophysiology & fetal programming research group, B05 DGA & GIIS-028 del IISA.,ARAID Foundation, Zaragoza, Spain
| | - Sofía Macías-Redondo
- Instituto Aragonés de Ciencias de la Salud (IACS) & Aragon Institute for Health Research (IIS Aragón), Zaragoza, Spain
| | - Mark Strunk
- Instituto Aragonés de Ciencias de la Salud (IACS), Sequencing & Functional Genomics, Aragon Biomedical Research Center (CIBA), Zaragoza, Spain
| | - Ricardo Ramos-Ruíz
- Unidad de Genómica, Fundación Parque Científico de Madrid, Madrid, Spain
| | - Pilar Calvo
- Placental pathophysiology & fetal programming research group, B05 DGA & GIIS-028 del IISA.,Aragon Institute for Health Research (IIS Aragón), Obstetrics Department, Hospital Clínico Universitario Zaragoza, Spain
| | - Rafael Benito
- Aragon Institute for Health Research (IIS Aragón), Microbiology Department, Hospital Clínico Universitario Zaragoza, Spain
| | - Cristina Paules
- Placental pathophysiology & fetal programming research group, B05 DGA & GIIS-028 del IISA.,Aragon Institute for Health Research (IIS Aragón), Obstetrics Department, Hospital Clínico Universitario Zaragoza, Spain
| | - Daniel Oros
- Placental pathophysiology & fetal programming research group, B05 DGA & GIIS-028 del IISA.,Aragon Institute for Health Research (IIS Aragón), Obstetrics Department, Hospital Clínico Universitario Zaragoza, Spain.,Red de Salud Materno Infantil y del Desarrollo (SAMID), RETICS, Instituto de Salud Carlos III (ISCIII), Subdirección General de Evaluación y Fomento de la Investigación, Fondo Europeo de Desarrollo Regional (FEDER), Spain
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22
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Cruz JDO, Conceição IMCA, Tosatti JAG, Gomes KB, Luizon MR. Global DNA methylation in placental tissues from pregnant with preeclampsia: A systematic review and pathway analysis. Placenta 2020; 101:97-107. [PMID: 32942147 DOI: 10.1016/j.placenta.2020.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/24/2020] [Accepted: 09/01/2020] [Indexed: 12/28/2022]
Abstract
Pre-eclampsia (PE) is the major cause of fetal and maternal mortality and can be classified according to gestational age of onset into early-onset (EOPE, <34 weeks of gestation) and late- (LOPE, ≥34 weeks of gestation). DNA methylation (DNAm) may help to understand the abnormal placentation in PE. Therefore, we performed a systematic review to assess the role of global DNAm on pathophysiology of PE, focused on fetal and maternal tissues of placenta from pregnant with PE, including EOPE and LOPE. We searched the databases EMBASE, Medline/PubMed, Cochrane Central Register of Controlled Trials, Scopus, Lilacs, Scielo and Google Scholar, and followed the MOOSE guidelines. Moreover, we performed pathway analysis with the overlapping genes from the included studies. Twelve out of 24 included studies in the qualitative analysis considered the classification into EOPE and LOPE. We did not found heterogeneity in the criteria used for diagnosis of PE, and a few studies evaluated whether confounding factors would influence placental DNAm. Fourteen out of 24 included studies showed hypomethylation in placental tissue from pregnant with PE compared to controls. The differences in DNAm are specific to genes or differentially methylated regions, and more evident in EOPE and preterm PE compared to controls, rather than LOPE and term PE. The overlapping genes from included studies revealed pathways relevant to pathophysiology of PE. Our findings highlighted the heterogeneous results of the included studies, mainly focused on North America and China. Replication studies in different populations should use the same placental tissues, techniques to assess DNAm and pipelines for bioinformatic analysis.
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Affiliation(s)
- Juliana de O Cruz
- Graduate Program in Genetics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Izabela M C A Conceição
- Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Jéssica A G Tosatti
- Department of Clinical and Toxicological Analyzes, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Karina B Gomes
- Department of Clinical and Toxicological Analyzes, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Marcelo R Luizon
- Graduate Program in Genetics, 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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23
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Li X, Yu B, Wu X, Zhang J, Jia C, Wang Z, Zhou Q, Zhou H, Yi G, Chen X, Fu S. Associations between Placental Insulin-Like Growth Factor-1 Gene Expression, DNA Methylation and Intrauterine Growth Restriction. Health (London) 2020. [DOI: 10.4236/health.2020.123022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Gao G, Wang S, Zhang J, Su G, Zheng Z, Bai C, Yang L, Wei Z, Wang X, Liu X, Guo Z, Li G, Su X, Zhang L. Transcriptome-wide analysis of the SCNT bovine abnormal placenta during mid- to late gestation. Sci Rep 2019; 9:20035. [PMID: 31882783 PMCID: PMC6934727 DOI: 10.1038/s41598-019-56566-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 12/13/2019] [Indexed: 01/21/2023] Open
Abstract
The dysfunction of placenta is common in somatic cell nuclear transfer (SCNT) cloned cattle and would cause aberrant fetal development and even abortion, which occurred with highest rate at the mid- to late gestation. However, the mechanism of abnormal placentas was unclear. To analyze the transcriptome-wide characteristics of abnormal placentas in SCNT cloned cattle, the mRNA, lncRNA and miRNA of placental cotyledon tissue at day 180 after gestation were sequenced. A total of 19,055 mRNAs, 30,141 lncRNAs and 684 miRNAs were identified. Compared with control group, 362 mRNAs, 1,272 lncRNAs and nine miRNAs (six known and three novel miRNAs) were differentially expressed (fold change ≥ 2 and P-value < 0.05). The differentially expressed genes were functionally enriched in urea and ions transmembrane transport, which indicated that the maternal-fetal interactions were disturbed in impaired placentas. Furthermore, the competing endogenous RNAs (ceRNAs) networks were identified to illustrate their roles in abnormal placental morphology. The present research would be helpful to discover the mechanism of late gestational abnormality of SCNT cattle by provides important genomic information and insights.
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Affiliation(s)
- Guangqi Gao
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China
- College of Life Science, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Shenyuan Wang
- College of Life Science, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Jiaqi Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Guanghua Su
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China
| | - Zhong Zheng
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China
| | - Chunling Bai
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China
| | - Lei Yang
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China
| | - Zhuying Wei
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China
| | - Xiuying Wang
- Inner Mongolia Radio and TV University, Hohhot, 010010, China
| | - Xiao Liu
- College of Life Science, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Ziru Guo
- College of Life Science, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Guangpeng Li
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China.
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China.
| | - Xiaohu Su
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China.
- Key Laboratory of Gene Engineering of the Ministry of Education, Guangzhou Key Laboratory of Healthy Aging Research and State Key Laboratory of Biocontrol, SYSU-BCM JointResearch Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Li Zhang
- The State key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010070, China.
- College of Life Science, Inner Mongolia University, Hohhot, 010070, China.
- College of Life Science, Inner Mongolia Agricultural University, Hohhot, 010018, China.
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Li E, Luo T, Wang Y. Identification of diagnostic biomarkers in patients with gestational diabetes mellitus based on transcriptome gene expression and methylation correlation analysis. Reprod Biol Endocrinol 2019; 17:112. [PMID: 31881887 PMCID: PMC6933721 DOI: 10.1186/s12958-019-0556-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/12/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) has a high prevalence in the period of pregnancy. However, the lack of gold standards in current screening and diagnostic methods posed the biggest limitation. Regulation of gene expression caused by DNA methylation plays an important role in metabolic diseases. In this study, we aimed to screen GDM diagnostic markers, and establish a diagnostic model for predicting GDM. METHODS First, we acquired data of DNA methylation and gene expression in GDM samples (N = 41) and normal samples (N = 41) from the Gene Expression Omnibus (GEO) database. After pre-processing the data, linear models were used to identify differentially expressed genes (DEGs). Then we performed pathway enrichment analysis to extract relationships among genes from pathways, construct pathway networks, and further analyzed the relationship between gene expression and methylation of promoter regions. We screened for genes which are significantly negatively correlated with methylation and established mRNA-mRNA-CpGs network. The network topology was further analyzed to screen hub genes which were recognized as robust GDM biomarkers. Finally, the samples were randomly divided into training set (N = 28) and internal verification set (N = 27), and the support vector machine (SVM) ten-fold cross-validation method was used to establish a diagnostic classifier, which verified on internal and external data sets. RESULTS In this study, we identified 465 significant DEGs. Functional enrichment analysis revealed that these genes were associated with Type I diabetes mellitus and immunization. And we constructed an interactional network including 1091 genes by using the regulatory relationships of all 30 enriched pathways. 184 epigenetics regulated genes were screened by analyzing the relationship between gene expression and promoter regions' methylation in the network. Moreover, the accuracy rate in the training data set was increased up to 96.3, and 82.1% in the internal validation set, and 97.3% in external validation data sets after establishing diagnostic classifiers which were performed by analyzing the gene expression profiles of obtained 10 hub genes from this network, combined with SVM. CONCLUSIONS This study provided new features for the diagnosis of GDM and may contribute to the diagnosis and personalized treatment of GDM.
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Affiliation(s)
- Enchun Li
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Zhejiang University, No. 1 Xueshi Road, Hangzhou, 310006, China.
| | - Tengfei Luo
- Department of Obstetrics, Hangzhou Women's Hospital, Hagzhuo, China
| | - Yingjun Wang
- Department of Obstetrics, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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26
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Menelaou K, Prater M, Tunster S, Blake G, Geary Joo C, Cross JC, Hamilton R, Watson E. Blastocyst transfer in mice alters the placental transcriptome and growth. Reproduction 2019; 159:115-132. [PMID: 31751309 PMCID: PMC6993209 DOI: 10.1530/rep-19-0293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 11/18/2019] [Indexed: 12/18/2022]
Abstract
Assisted reproduction technologies (ART) are becoming increasingly common. Therefore, how these procedures influence gene regulation and feto-placental development are important to explore. Here, we assess the effects of blastocyst transfer on mouse placental growth and transcriptome. C57Bl/6 blastocysts were transferred into uteri of B6D2F1 pseudopregnant females and dissected at embryonic day 10.5 for analysis. Compared to non-transferred controls, placentas from transferred conceptuses weighed less even though the embryos were larger on average. This suggested a compensatory increase in placental efficiency. RNA-sequencing of whole male placentas revealed 543 differentially expressed genes (DEGs) after blastocyst transfer: 188 and 355 genes were down-regulated and up-regulated, respectively. DEGs were independently validated in male and female placentas. Bioinformatic analyses revealed that DEGs represented expression in all major placental cell types and included genes that are critical for placenta development and/or function. Furthermore, the direction of transcriptional change in response to blastocyst transfer implied an adaptive response to improve placental function to maintain fetal growth. Our analysis revealed that CpG methylation at regulatory regions of two DEGs was unchanged in female transferred placentas and that DEGs had fewer gene-associated CpG islands (within ~20 kb region) compared to the larger genome. These data suggested that altered methylation at proximal promoter regions might not lead to transcriptional disruption in transferred placentas. Genomic clustering of some DEGs warrants further investigation of long-range, cis-acting epigenetic mechanisms including histone modifications together with DNA methylation. We conclude that embryo transfer, a protocol required for ART, significantly impacts the placental transcriptome and growth.
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Affiliation(s)
- Katerina Menelaou
- K Menelaou, Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom of Great Britain and Northern Ireland
| | - Malwina Prater
- M Prater, Centre for Trophoblast Research, University of Cambridge, Cambridge, United Kingdom of Great Britain and Northern Ireland
| | - Simon Tunster
- S Tunster, Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom of Great Britain and Northern Ireland
| | - Georgina Blake
- G Blake, Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom of Great Britain and Northern Ireland
| | - Colleen Geary Joo
- C Geary Joo, Clara Christie Centre for Mouse Genomics, University of Calgary, Calgary, Canada
| | - James C Cross
- J Cross, Comparative Biology and Experimental Medicine, University of Calgary, Calgary, Canada
| | - Russell Hamilton
- R Hamilton, Centre for Trophoblast Research, University of Cambridge, Cambridge, United Kingdom of Great Britain and Northern Ireland
| | - Erica Watson
- E Watson, Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EG, United Kingdom of Great Britain and Northern Ireland
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27
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Childebayeva A, Harman T, Weinstein J, Goodrich JM, Dolinoy DC, Day TA, Bigham AW, Brutsaert TD. DNA Methylation Changes Are Associated With an Incremental Ascent to High Altitude. Front Genet 2019; 10:1062. [PMID: 31737045 PMCID: PMC6828981 DOI: 10.3389/fgene.2019.01062] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 10/03/2019] [Indexed: 12/15/2022] Open
Abstract
Genetic and nongenetic factors are involved in the individual ability to physiologically acclimatize to high-altitude hypoxia through processes that include increased heart rate and ventilation. High-altitude acclimatization is thought to have a genetic component, yet it is unclear if other factors, such as epigenetic gene regulation, are involved in acclimatization to high-altitude hypoxia in nonacclimatized individuals. We collected saliva samples from a group of healthy adults of European ancestry (n = 21) in Kathmandu (1,400 m; baseline) and three altitudes during a trek to the Everest Base Camp: Namche (3,440 m; day 3), Pheriche (4,240 m; day 7), and Gorak Shep (5,160 m; day 10). We used quantitative bisulfite pyrosequencing to determine changes in DNA methylation, a well-studied epigenetic marker, in LINE-1, EPAS1, EPO, PPARa, and RXRa. We found significantly lower DNA methylation between baseline (1,400 m) and high altitudes in LINE-1, EPO (at 4,240 m only), and RXRa. We found increased methylation in EPAS1 (at 4,240 m only) and PPARa. We also found positive associations between EPO methylation and systolic blood pressure and RXRa methylation and hemoglobin. Our results show that incremental exposure to hypoxia can affect the epigenome. Changes to the epigenome, in turn, could underlie the process of altitude acclimatization.
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Affiliation(s)
- Ainash Childebayeva
- Department of Anthropology, University of Michigan, Ann Arbor, MI, United States.,Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, United States.,Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Taylor Harman
- Department of Exercise Science, Syracuse University, Syracuse, NY, United States
| | - Julien Weinstein
- Department of Anthropology, University of Michigan, Ann Arbor, MI, United States
| | - Jaclyn M Goodrich
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, United States
| | - Dana C Dolinoy
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, United States.,Department of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, United States
| | - Trevor A Day
- Department of Biology, Faculty of Science and Technology, Mount Royal University, Calgary, AB, Canada
| | - Abigail W Bigham
- Department of Anthropology, University of Michigan, Ann Arbor, MI, United States.,Department of Anthropology, University of California, Los Angeles, CA, United States
| | - Tom D Brutsaert
- Department of Exercise Science, Syracuse University, Syracuse, NY, United States
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28
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Del Gobbo GF, Konwar C, Robinson WP. The significance of the placental genome and methylome in fetal and maternal health. Hum Genet 2019; 139:1183-1196. [PMID: 31555906 DOI: 10.1007/s00439-019-02058-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 08/29/2019] [Indexed: 01/15/2023]
Abstract
The placenta is a crucial organ for supporting a healthy pregnancy, and defective development or function of the placenta is implicated in a number of complications of pregnancy that affect both maternal and fetal health, including maternal preeclampsia, fetal growth restriction, and spontaneous preterm birth. In this review, we highlight the role of the placental genome in mediating fetal and maternal health by discussing the impact of a variety of genetic alterations, from large whole-chromosome aneuploidies to single-nucleotide variants, on placental development and function. We also discuss the placental methylome in relation to its potential applications for refining diagnosis, predicting pathology, and identifying genetic variants with potential functional significance. We conclude that understanding the influence of the placental genome on common placental-mediated pathologies is critical to improving perinatal health outcomes.
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Affiliation(s)
- Giulia F Del Gobbo
- BC Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, BC, V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, 4500 Oak Street, Vancouver, BC, V6H 3N1, Canada
| | - Chaini Konwar
- BC Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, BC, V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, 4500 Oak Street, Vancouver, BC, V6H 3N1, Canada
| | - Wendy P Robinson
- BC Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, BC, V5Z 4H4, Canada. .,Department of Medical Genetics, University of British Columbia, 4500 Oak Street, Vancouver, BC, V6H 3N1, Canada.
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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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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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31
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Wang T, Xiang Y, Zhou X, Zheng X, Zhang H, Zhang X, Zhang J, He L, Zhao X. Epigenome-wide association data implicate fetal/maternal adaptations contributing to clinical outcomes in preeclampsia. Epigenomics 2019; 11:1003-1019. [PMID: 31091979 DOI: 10.2217/epi-2019-0065] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: To investigate the changes of placental DNA methylome in preeclampsia (PE). Materials & methods: We performed an epigenome-wide association study in a Chinese cohort and six published datasets consisting of 335 samples in total. Results & conclusion: Numerous consistently hypomethylated probes were associated with early-onset PE in different populations, with 2125 reaching epigenome-wide significance. The validated probes were enriched for cytosine-phosphate-guanine dinucleotide (CpG) sites partially methylated and located in genes related to trophoblast fusion. The methylation levels of the validated probes were associated with clinical severity, while the intermediate samples showed antagonistic fetal/maternal outcomes. The DNA methylation patterns of PE and clinically relevant obstetrical syndromes suggested partially common pathophysiologies and complex maternal/fetal adaptive responses contributing to variable clinical outcomes.
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Affiliation(s)
- Teng Wang
- Children's Hospital & Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, PR China
| | - Yuqian Xiang
- International Peace Maternity & Child Health Hospital of China Affiliated to Shanghai Jiao Tong University, Shanghai, 200030, PR China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, PR China
| | - Xinyao Zhou
- Children's Hospital & Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, PR China
| | - Xiaoguo Zheng
- International Peace Maternity & Child Health Hospital of China Affiliated to Shanghai Jiao Tong University, Shanghai, 200030, PR China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, PR China
| | - Huijuan Zhang
- International Peace Maternity & Child Health Hospital of China Affiliated to Shanghai Jiao Tong University, Shanghai, 200030, PR China
| | - Xiaojing Zhang
- Department of Obstetrics, Provincial Hospital Affiliated to Shandong University, Jinan, 250021, PR China
| | - Junyu Zhang
- International Peace Maternity & Child Health Hospital of China Affiliated to Shanghai Jiao Tong University, Shanghai, 200030, PR China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, PR China
| | - Lin He
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200030, PR China
| | - Xinzhi Zhao
- International Peace Maternity & Child Health Hospital of China Affiliated to Shanghai Jiao Tong University, Shanghai, 200030, PR China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, PR China
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32
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Wilson RL, François M, Jankovic-Karasoulos T, McAninch D, McCullough D, Leifert WR, Roberts CT, Bianco-Miotto T. Characterization of 5-methylcytosine and 5-hydroxymethylcytosine in human placenta cell types across gestation. Epigenetics 2019; 14:660-671. [PMID: 31038385 DOI: 10.1080/15592294.2019.1609866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The placenta is an important organ in pregnancy, however, very little is understood about placental development at a molecular level. This includes the role of epigenetic mechanisms and how they change throughout gestation. DNA methylation studies in this organ are complicated by the different cell types that make up the placenta, each with their own unique transcriptome and epigenome. Placental dysfunction is often associated with pregnancy complications such as preeclampsia (PE). Aberrant DNA methylation in the placenta has been identified in pregnancy complications. We used immunohistochemistry (IHC) and immunofluorescence (IF) to localize 5-methylcytosine (5-mC) and 5-hydroxymethylcytosine (5-hmC) in placenta tissue from first and second trimester as well as uncomplicated term and PE samples. IHC analysis of whole placental tissues showed 5-mC increased across gestation. When cytotrophoblasts (CTB) and syncytiotrophoblasts (STB) were isolated and assessed using IF, both 5-mC and 5-hmC increased in term CTBs compared to first/second-trimester samples. Staining intensity of 5-hmC was higher in first/second trimester STBs compared to CTBs (P = 0.0011). Finally, IHC staining of term tissue from PE and uncomplicated pregnancies revealed higher 5-mC staining intensity in placentas from PE pregnancies (P = 0.028). Our study has shown increased 5-mC and 5-hmC staining intensities across gestation and differed between two trophoblast populations. Differences in DNA methylation profiles between placental cell types may be indicative of different functions and requires further study to elucidate what changes accompany placental pathologies.
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Affiliation(s)
- Rebecca L Wilson
- a Center for Fetal and Placental Research , Cincinnati Children's Hospital and Medical Research Center , Cincinnati , OH , USA.,b Adelaide Medical School , University of Adelaide , Adelaide , Australia.,c Robinson Research Institute , University of Adelaide , Adelaide , Australia
| | - Maxime François
- d CSIRO Health and Biosecurity , Future Science Platforms Probing Biosystems , Adelaide , Australia.,e School of Biological Sciences , University of Adelaide , Adelaide , Australia
| | - Tanja Jankovic-Karasoulos
- b Adelaide Medical School , University of Adelaide , Adelaide , Australia.,c Robinson Research Institute , University of Adelaide , Adelaide , Australia
| | - Dale McAninch
- b Adelaide Medical School , University of Adelaide , Adelaide , Australia.,c Robinson Research Institute , University of Adelaide , Adelaide , Australia
| | - Dylan McCullough
- b Adelaide Medical School , University of Adelaide , Adelaide , Australia.,c Robinson Research Institute , University of Adelaide , Adelaide , Australia
| | - Wayne R Leifert
- d CSIRO Health and Biosecurity , Future Science Platforms Probing Biosystems , Adelaide , Australia.,e School of Biological Sciences , University of Adelaide , Adelaide , Australia
| | - Claire T Roberts
- b Adelaide Medical School , University of Adelaide , Adelaide , Australia.,c Robinson Research Institute , University of Adelaide , Adelaide , Australia
| | - Tina Bianco-Miotto
- c Robinson Research Institute , University of Adelaide , Adelaide , Australia.,f School of Agriculture, Food and Wine, Waite Research Institute , University of Adelaide , Adelaide , Australia
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33
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Lin L, Li G, Zhang W, Wang YL, Yang H. Low-dose aspirin reduces hypoxia-induced sFlt1 release via the JNK/AP-1 pathway in human trophoblast and endothelial cells. J Cell Physiol 2019; 234:18928-18941. [PMID: 31004367 DOI: 10.1002/jcp.28533] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 11/06/2022]
Abstract
Pre-eclampsia (PE) is a serious hypertensive disorder of pregnancy that remains a leading cause of perinatal and maternal morbidity and mortality worldwide. Placental ischemia/hypoxia and the secretion of soluble fms-like tyrosine kinase 1 (sFlt1) into maternal circulation are involved in the pathogenesis of PE. Although low-dose aspirin (LDA) has beneficial effects on the prevention of PE, the exact mechanisms of action of LDA, particularly on placental dysfunction, and sFlt1 release, have not been well investigated. This study aimed to determine whether LDA exists the protective effects on placental trophoblast and endothelial functions and prevents PE-associated sFlt1 release. First, we observed that LDA mitigated hypoxia-induced trophoblast apoptosis, showed positive effects on trophoblast cells migration and invasion activity, and increased the tube-forming activity of human umbilical vein endothelial cells (HUVECs). In addition, LDA decreased hypoxia-induced sFlt1 production, and the c-Jun NH2 -terminal kinase/activator protein-1 (JNK/AP-1) pathway was shown to mediate the induction of sFlt1. Moreover, the transcription factor AP-1 was confirmed to regulate the Flt1 gene expression by directly binding to the Flt1 promoter in luciferase assays. The result of chromatin immunoprecipitation assays further demonstrated that LDA could directly decrease the expression of the transcription factor AP-1, and thus decrease sFlt1 production. Finally, the effects of LDA on sFlt1 production were proved in human placental explants. Taken together, our data show the protective effects of LDA against trophoblast and endothelial cell dysfunction and reveal that the LDA-mediated inhibition of sFlt1 via the JNK/AP-1 pathway may be a potential cellular/molecular mechanism for the prevention of PE.
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Affiliation(s)
- Li Lin
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Guanlin Li
- Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, China
| | - Wanyi Zhang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Yan-Ling Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, China
| | - Huixia Yang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China.,Beijing Key Laboratory of Maternal-Fetal Medicine of Gestational Diabetes Mellitus, Beijing, China
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34
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Involvement of follistatin-like 3 in preeclampsia. Biochem Biophys Res Commun 2018; 506:692-697. [PMID: 30454705 DOI: 10.1016/j.bbrc.2018.10.139] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 10/22/2018] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Preeclampsia is a main cause of maternal and perinatal mortality and morbidity. The expression of follistatin-like 3 (FSTL3) is enhanced in maternal serum and placenta of preeclamptic women. However, whether FSTL3 is involved in the pathophysiologic of preeclampsia has not been clarified yet. METHOD Trophoblast cell lines Swan71 and JAR cells were cultured and siRNA was used to silence FSTL3. The expression of FSTL3 was determined by Western blotting. The matrigel-coated transwell and wound healing assays were used to assess invasion and migration, cell proliferation and apoptosis were detected by CCK-8 and flow cytometric analysis, respectively. Oil red O staining was used to detect the lipid storage in trophoblast. RESULTS Hypoxia culture significantly enhanced the expression of FSTL3 by trophoblast. Down-regulation of FSTL3 significantly suppressed the proliferation, migration, invasion and lipid storage but increased apoptosis of trophoblast. DISCUSSION Aberrant expression of FSTL3 in preeclampsia led to the dysfunction of trophoblast, indicating its involvement in the pathogenesis of preeclampsia.
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35
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Alahari S, Garcia J, Post M, Caniggia I. The von Hippel Lindau tumour suppressor gene is a novel target of E2F4-mediated transcriptional repression in preeclampsia. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3298-3308. [DOI: 10.1016/j.bbadis.2018.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/20/2018] [Accepted: 07/16/2018] [Indexed: 12/31/2022]
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36
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Alavian-Ghavanini A, Lin PI, Lind PM, Risén Rimfors S, Halin Lejonklou M, Dunder L, Tang M, Lindh C, Bornehag CG, Rüegg J. Prenatal Bisphenol A Exposure is Linked to Epigenetic Changes in Glutamate Receptor Subunit Gene Grin2b in Female Rats and Humans. Sci Rep 2018; 8:11315. [PMID: 30054528 PMCID: PMC6063959 DOI: 10.1038/s41598-018-29732-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 07/17/2018] [Indexed: 12/15/2022] Open
Abstract
Bisphenol A (BPA) exposure has been linked to neurodevelopmental disorders and to effects on epigenetic regulation, such as DNA methylation, at genes involved in brain function. High doses of BPA have been shown to change expression and regulation of one such gene, Grin2b, in mice. Yet, if such changes occur at relevant doses in animals and humans has not been addressed. We investigated if low-dose developmental BPA exposure affects DNA methylation and expression of Grin2b in brains of adult rats. Furthermore, we assessed associations between prenatal BPA exposure and Grin2b methylation in 7-year old children. We found that Grin2b mRNA expression was increased and DNA methylation decreased in female, but not in male rats. In humans, prenatal BPA exposure was associated with increased methylation levels in girls. Additionally, low APGAR scores, a predictor for increased risk for neurodevelopmental diseases, were associated with higher Grin2b methylation levels in girls. Thus, we could link developmental BPA exposure and low APGAR scores to changes in the epigenetic regulation of Grin2b, a gene important for neuronal function, in a sexual dimorphic fashion. Discrepancies in exact locations and directions of the DNA methylation change might reflect differences between species, analysed tissues, exposure level and/or timing.
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Affiliation(s)
- Ali Alavian-Ghavanini
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, 151 36, Södertälje, Sweden
- Karolinska Institutet, Department of Clinical Neuroscience, Centre for Molecular Medicine (CMM), 171 64, Solna, Sweden
| | - Ping-I Lin
- Karlstad University, Department of Health Sciences, 651 88, Karlstad, Sweden
| | - P Monica Lind
- Uppsala University, Department of Medical Sciences, Occupational and Environmental Medicine, 751 85, Uppsala, Sweden
| | - Sabina Risén Rimfors
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, 151 36, Södertälje, Sweden
| | - Margareta Halin Lejonklou
- Uppsala University, Department of Medical Sciences, Occupational and Environmental Medicine, 751 85, Uppsala, Sweden
| | - Linda Dunder
- Uppsala University, Department of Medical Sciences, Occupational and Environmental Medicine, 751 85, Uppsala, Sweden
| | - Mandy Tang
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, 151 36, Södertälje, Sweden
| | - Christian Lindh
- Lund University, Division of Occupational and Environmental Medicine, Lund University, 221 85, Lund, Sweden
| | - Carl-Gustaf Bornehag
- Karlstad University, Department of Health Sciences, 651 88, Karlstad, Sweden
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Joëlle Rüegg
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, 151 36, Södertälje, Sweden.
- Karolinska Institutet, Department of Clinical Neuroscience, Centre for Molecular Medicine (CMM), 171 64, Solna, Sweden.
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37
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Ducsay CA, Goyal R, Pearce WJ, Wilson S, Hu XQ, Zhang L. Gestational Hypoxia and Developmental Plasticity. Physiol Rev 2018; 98:1241-1334. [PMID: 29717932 PMCID: PMC6088145 DOI: 10.1152/physrev.00043.2017] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Hypoxia is one of the most common and severe challenges to the maintenance of homeostasis. Oxygen sensing is a property of all tissues, and the response to hypoxia is multidimensional involving complicated intracellular networks concerned with the transduction of hypoxia-induced responses. Of all the stresses to which the fetus and newborn infant are subjected, perhaps the most important and clinically relevant is that of hypoxia. Hypoxia during gestation impacts both the mother and fetal development through interactions with an individual's genetic traits acquired over multiple generations by natural selection and changes in gene expression patterns by altering the epigenetic code. Changes in the epigenome determine "genomic plasticity," i.e., the ability of genes to be differentially expressed according to environmental cues. The genomic plasticity defined by epigenomic mechanisms including DNA methylation, histone modifications, and noncoding RNAs during development is the mechanistic substrate for phenotypic programming that determines physiological response and risk for healthy or deleterious outcomes. This review explores the impact of gestational hypoxia on maternal health and fetal development, and epigenetic mechanisms of developmental plasticity with emphasis on the uteroplacental circulation, heart development, cerebral circulation, pulmonary development, and the hypothalamic-pituitary-adrenal axis and adipose tissue. The complex molecular and epigenetic interactions that may impact an individual's physiology and developmental programming of health and disease later in life are discussed.
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Affiliation(s)
- Charles A. Ducsay
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Ravi Goyal
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - William J. Pearce
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Sean Wilson
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Xiang-Qun Hu
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Lubo Zhang
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
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Yang Y, Abdulhasan M, Awonuga A, Bolnick A, Puscheck EE, Rappolee DA. Hypoxic Stress Forces Adaptive and Maladaptive Placental Stress Responses in Early Pregnancy. Birth Defects Res 2018; 109:1330-1344. [PMID: 29105384 DOI: 10.1002/bdr2.1149] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 10/07/2017] [Indexed: 12/19/2022]
Abstract
This review focuses on hypoxic stress and its effects on the placental lineage and the earliest differentiation events in mouse and human placental trophoblast stem cells (TSCs). Although the placenta is a decidual organ at the end of pregnancy, its earliest rapid growth and function at the start of pregnancy precedes and supports growth and function of the embryo. Earliest function requires that TSCs differentiate, however, "hypoxia" supports rapid growth, but not differentiation of TSCs. Most of the literature on earliest placental "hypoxia" studies used 2% oxygen which is normoxic for TSCs. Hypoxic stress happens when oxygen level drops below 2%. It decreases anabolism, proliferation, potency/stemness and increases differentiation, despite culture conditions that would sustain proliferation and potency. Thus, to study the pathogenesis due to TSC dysfunction, it is important to study hypoxic stress below 2%. Many studies have been performed using 0.5 to 1% oxygen in cultured mouse TSCs. From all these studies, a small number has examined human trophoblast lines and primary first trimester placental hypoxic stress responses in culture. Some other stress stimuli, aside from hypoxic stress, are used to elucidate common and unique aspects of hypoxic stress. The key outcomes produced by hypoxic stress are mitochondrial, anabolic, and proliferation arrest, and this is coupled with stemness loss and differentiation. Hypoxic stress can lead to depletion of stem cells and miscarriage, or can lead to later dysfunctions in placentation and fetal development. Birth Defects Research 109:1330-1344, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Yu Yang
- CS Mott Center for Human Growth and Development, Department of Obstetrics & Gynecology, Reproductive Endocrinology and Infertility, Wayne State University School of Medicine, Detroit, Michigan.,Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan
| | - Mohammed Abdulhasan
- CS Mott Center for Human Growth and Development, Department of Obstetrics & Gynecology, Reproductive Endocrinology and Infertility, Wayne State University School of Medicine, Detroit, Michigan
| | - Awoniyi Awonuga
- CS Mott Center for Human Growth and Development, Department of Obstetrics & Gynecology, Reproductive Endocrinology and Infertility, Wayne State University School of Medicine, Detroit, Michigan
| | - Alan Bolnick
- CS Mott Center for Human Growth and Development, Department of Obstetrics & Gynecology, Reproductive Endocrinology and Infertility, Wayne State University School of Medicine, Detroit, Michigan
| | - Elizabeth E Puscheck
- CS Mott Center for Human Growth and Development, Department of Obstetrics & Gynecology, Reproductive Endocrinology and Infertility, Wayne State University School of Medicine, Detroit, Michigan
| | - Daniel A Rappolee
- CS Mott Center for Human Growth and Development, Department of Obstetrics & Gynecology, Reproductive Endocrinology and Infertility, Wayne State University School of Medicine, Detroit, Michigan.,Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan.,Institutes for Environmental Health Science, Wayne state University School of Medicine, Detroit, Michigan.,Department of Biology, University of Windsor, Windsor, ON, Canada
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Soares MJ, Iqbal K, Kozai K. Hypoxia and Placental Development. Birth Defects Res 2018; 109:1309-1329. [PMID: 29105383 DOI: 10.1002/bdr2.1135] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 09/04/2017] [Indexed: 12/17/2022]
Abstract
Hemochorial placentation is orchestrated through highly regulated temporal and spatial decisions governing the fate of trophoblast stem/progenitor cells. Trophoblast cell acquisition of specializations facilitating invasion and uterine spiral artery remodeling is a labile process, sensitive to the environment, and represents a process that is vulnerable to dysmorphogenesis in pathologic states. Hypoxia is a signal guiding placental development, and molecular mechanisms directing cellular adaptations to low oxygen tension are integral to trophoblast cell differentiation and placentation. Hypoxia can also be used as an experimental tool to investigate regulatory processes controlling hemochorial placentation. These developmental processes are conserved in mouse, rat, and human placentation. Consequently, elements of these developmental events can be modeled and hypotheses tested in trophoblast stem cells and in genetically manipulated rodents. Hypoxia is also a consequence of a failed placenta, yielding pathologies that can adversely affect maternal adjustments to pregnancy, fetal health, and susceptibility to adult disease. The capacity of the placenta for adaptation to environmental challenges highlights the importance of its plasticity in safeguarding a healthy pregnancy. Birth Defects Research 109:1309-1329, 2017.© 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Michael J Soares
- Institute for Reproduction and Perinatal Research, Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas.,Department of Pediatrics, University of Kansas Medical Center, Kansas City, Kansas.,Fetal Health Research, Children's Research Institute, Children's Mercy, Kansas City, Missouri
| | - Khursheed Iqbal
- Institute for Reproduction and Perinatal Research, Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Keisuke Kozai
- Institute for Reproduction and Perinatal Research, Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
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RNA-Seq identifies genes whose proteins are transformative in the differentiation of cytotrophoblast to syncytiotrophoblast, in human primary villous and BeWo trophoblasts. Sci Rep 2018; 8:5142. [PMID: 29572450 PMCID: PMC5865118 DOI: 10.1038/s41598-018-23379-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 03/09/2018] [Indexed: 12/20/2022] Open
Abstract
The fusion of villous cytotrophoblasts into the multinucleated syncytiotrophoblast is critical for the essential functions of the mammalian placenta. Using RNA-Seq gene expression and quantitative protein expression, we identified genes and their cognate proteins which are coordinately up- or down-regulated in two cellular models of cytotrophoblast to syncytiotrophoblast development, human primary villous and human BeWo cytotrophoblasts. These include hCGβ, TREML2, PAM, CRIP2, INHA, FLRG, SERPINF1, C17orf96, KRT17 and SAA1. These findings provide avenues for further understanding the mechanisms underlying mammalian placental synctiotrophoblast development.
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Leavey K, Wilson SL, Bainbridge SA, Robinson WP, Cox BJ. Epigenetic regulation of placental gene expression in transcriptional subtypes of preeclampsia. Clin Epigenetics 2018; 10:28. [PMID: 29507646 PMCID: PMC5833042 DOI: 10.1186/s13148-018-0463-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 02/21/2018] [Indexed: 12/14/2022] Open
Abstract
Background Preeclampsia (PE) is a heterogeneous, hypertensive disorder of pregnancy, with no robust biomarkers or effective treatments. We hypothesized that this heterogeneity is due to the existence of multiple subtypes of PE and, in support of this hypothesis, we recently identified five clusters of placentas within a large gene expression microarray dataset (N = 330), of which four (clusters 1, 2, 3, and 5) contained a substantial number of PE samples. However, while transcriptional analysis of placentas can subtype patients, we propose that the addition of epigenetic information could discern gene regulatory mechanisms behind the distinct PE pathologies, as well as identify clinically useful potential biomarkers. Results We subjected 48 of our samples from transcriptional clusters 1, 2, 3, and 5 to Infinium HumanMethylation450 arrays. Samples belonging to transcriptional clusters 1–3 still showed visible relationships to each other by methylation, but cluster 5, with known chromosomal abnormalities, no longer formed a cohesive group. Within transcriptional clusters 2 and 3, controlling for fetal sex and gestational age in the identification of differentially methylated sites, compared to the healthier cluster 1, dramatically reduced the number of significant sites, but increased the percentage that demonstrated a strong linear correlation with gene expression (from 5% and 2% to 9% and 8%, respectively). Locations exhibiting a positive relationship between methylation and gene expression were most frequently found in CpG open sea enhancer regions within the gene body, while those with a significant negative correlation were often annotated to the promoter in a CpG shore region. Integrated transcriptome and epigenome analysis revealed modifications in TGF-beta signaling, cell adhesion, oxidative phosphorylation, and metabolism pathways in cluster 2 placentas, and aberrations in antigen presentation, allograft rejection, and cytokine-cytokine receptor interaction in cluster 3 samples. Conclusions Overall, we have established DNA methylation alterations underlying a portion of the transcriptional development of “canonical” PE in cluster 2 and “immunological” PE in cluster 3. However, a significant number of the observed methylation changes were not associated with corresponding changes in gene expression, and vice versa, indicating that alternate methods of gene regulation will need to be explored to fully comprehend these PE subtypes. Electronic supplementary material The online version of this article (10.1186/s13148-018-0463-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katherine Leavey
- 1Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, ON Canada
| | - Samantha L Wilson
- 2BC Children's Hospital Research Institute, 950 W 28th Ave, Vancouver, BC Canada.,3Department of Medical Genetics, University of British Columbia, C201-4500 Oak St, Vancouver, BC Canada
| | - Shannon A Bainbridge
- 4Interdisciplinary School of Health Sciences, University of Ottawa, 25 University Private, Ottawa, ON Canada.,5Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON Canada
| | - Wendy P Robinson
- 2BC Children's Hospital Research Institute, 950 W 28th Ave, Vancouver, BC Canada.,3Department of Medical Genetics, University of British Columbia, C201-4500 Oak St, Vancouver, BC Canada
| | - Brian J Cox
- 1Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, ON Canada.,6Department of Obstetrics and Gynecology, University of Toronto, 23 Edward Street, Toronto, ON Canada
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Ma M, Zhou QJ, Xiong Y, Li B, Li XT. Preeclampsia is associated with hypermethylation of IGF-1 promoter mediated by DNMT1. Am J Transl Res 2018; 10:16-39. [PMID: 29422991 PMCID: PMC5801344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 11/13/2017] [Indexed: 06/08/2023]
Abstract
Previous studies have demonstrated a dynamic epigenetic regulation of genes expression in placenta trophoblasts and a dynamic imbalance of DNA methylation and hydroxymethylation. Reduced IGF-1 has been observed in preeclampsia. This study was to investigate the interactive roles between IGF-1 and the global DNA methylation/hydroxymethylation, and the status of DNA methylation/hydroxymethylation and associated enzymes such as DNMTs and TETs in peeeclamptic placentas and hypoxic trophoblasts. It was found that IGF-1 was decreased in preeclamptic placentas and hypoxic trophoblasts when compared to the control group using immunohistochemisty, western blot, qRT-PCR and ELISA. Pyrophosphate sequencing showed IGF-1 promoter was significantly hypermethylated in preeclamptic placentas, which was responsible for reduced IGF-1 expression. Preeclamptic placentas and hypoxic trophoblasts were hypermethylated and hypohydroxymethylated accompanied by remarkably higher 5mC, DNMT1 and DNMT3b, and lower DNMT3a, 5hmC, TET1, TET2 and TET3 detected by immunohistochemisty, western blot, qRT-PCR and ELISA. Pearson's correlation confirmed a statistically significant negative correlation between IGF-1 and DNMT1. Furthermore, both treatment with 5-Aza-dc and DNMT1-siRNA significantly increased the expression of IGF-1 in HTR8 cells, indicating the potential mechanism of DNMT1-mediated DNA methylation in IGF-1 regulation. However, IGF-1 didn't change DNA methylation or hydroxymethylation. These findings suggest that preeclampsia is associated with hypermethylation of IGF-1 promoter mediated by DNMT1 and provide new insights into the diagnosis and treatment of preeclampsia.
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Affiliation(s)
- Min Ma
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200011, China
- Department of Obstetrics and Gynecology, Medical College of Yangzhou UniversityYangzhou 225000, Jiangsu, China
- Department of Obstetrics, Affiliated Hospital of Yangzhou UniversityYangzhou 225000, Jiangsu, China
| | - Qiong-Jie Zhou
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related DiseasesShanghai 200011, China
- Women’s Health and Perinatology Research Group, Department of Clinical Medicine, UiT-The Arctic University of NorwayTromso, Norway
| | - Yu Xiong
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related DiseasesShanghai 200011, China
| | - Bin Li
- Shanghai Key Laboratory of Female Reproductive Endocrine Related DiseasesShanghai 200011, China
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200011, China
| | - Xiao-Tian Li
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related DiseasesShanghai 200011, China
- Key Laboratory of Molecular Medicine, Ministry of Education, Shanghai Medical College of Fudan UniversityShanghai 200032, China
- Institute of Biomedical Sciences, Shanghai Medical College of Eudan UniversityShanghai 200032, China
- Shanghai Key Laboratory of Birth DefectsShanghai 200032, China
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Wilson SL, Leavey K, Cox BJ, Robinson WP. Mining DNA methylation alterations towards a classification of placental pathologies. Hum Mol Genet 2018; 27:135-146. [PMID: 29092053 PMCID: PMC5886226 DOI: 10.1093/hmg/ddx391] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 09/18/2017] [Accepted: 10/26/2017] [Indexed: 12/13/2022] Open
Abstract
Placental health is a key component to a successful pregnancy. Placental insufficiency (PI), inadequate nutrient delivery to the fetus, is associated with preeclampsia (PE), a maternal hypertensive disorder, and intrauterine growth restriction (IUGR), pathologically poor fetal growth. PI is more common in early-onset PE (EOPE) than late-onset PE (LOPE). However, the relationship between these disorders remains unclear. While DNA methylation (DNAm) alterations have been identified in PE and IUGR, these entities can overlap and few studies have analysed them separately. This study aims to utilize DNAm profiling to better understand the underlying placental variation associated with PE and IUGR. Placental samples from a discovery (43 controls, 22 EOPE, 18 LOPE, 11 IUGR) and validation cohort (15 controls, 22 EOPE, 11 LOPE) were evaluated using the Illumina HumanMethylation450 array. To account for gestational age (GA) effects, EOPE samples were compared with pre-term births of varying etiologies (GA <37 weeks). LOPE and IUGR were compared with term controls (GA >37 weeks). While 1703 sites were differentially methylated (DM) (FDR < 0.05, Δβ > 0.1) in EOPE, few changes were associated with LOPE (N = 5), or IUGR (N = 0). Of the 1703 EOPE sites, 599 validated in the second cohort. Using these 599 sites, both cohorts clustered into three distinct groups. Interestingly, LOPE samples diagnosed between 34 and 36 weeks with co-occurring IUGR clustered with the EOPE. DNAm profiling may provide an independent tool to refine clinical/pathological diagnoses into subgroups with more uniform pathology. Despite large changes observed in EOPE, there were challenges in reproducing genome-wide DNAm hits that are discussed.
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Affiliation(s)
- Samantha L Wilson
- BC Children’s Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
| | - Katherine Leavey
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Brian J Cox
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1E2, Canada
| | - Wendy P Robinson
- BC Children’s Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
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Zhang B, Chamba Y, Shang P, Wang Z, Ma J, Wang L, Zhang H. Comparative transcriptomic and proteomic analyses provide insights into the key genes involved in high-altitude adaptation in the Tibetan pig. Sci Rep 2017. [PMID: 28623314 PMCID: PMC5473931 DOI: 10.1038/s41598-017-03976-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Tibetan pigs that inhabit the Tibetan Plateau exhibit striking phenotypic and physiological differences from lowland pigs, and have adapted well to extreme conditions. However, the mechanisms involved in regulating gene expression at high altitude in these animals are not fully understood. In this study, we obtained transcriptomic and proteomic data from the heart tissues of Tibetan and Yorkshire pigs raised in the highlands (TH and YH) and lowlands (TL and YL) via RNA-seq and iTRAQ (isobaric tags for relative and absolute quantitation) analyses, respectively. Comparative analyses of TH vs. YH, TH vs.TL, TL vs. YL, and YH vs. YL yielded 299, 169, 242, and 368 differentially expressed genes (DEGs), and 473, 297, 394, and 297 differentially expressed proteins (DEPs), respectively. By functional annotation of these DEGs and DEPs, genes that were enriched in the HIF-1 signaling pathway (NPPA, ERK2, ENO3, and EGLN3), VEGF signaling pathway (ERK2, A2M, FGF1, CTGF, and DPP4), and hypoxia-related processes (CRYAB, EGLN3, TGFB2, DPP4, and ACE) were identified as important candidate genes for high-altitude adaptation in the Tibetan pig. This study enhances our understanding of the molecular mechanisms involved in hypoxic adaptation in pigs, and furthers our understanding of human hypoxic diseases.
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Affiliation(s)
- Bo Zhang
- National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Rd., Beijing, 100193, China
| | - Yangzom Chamba
- Tibet Agriculture and Animal Husbandry College, Linzhi, Tibet, 860000, China
| | - Peng Shang
- National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Rd., Beijing, 100193, China.,Tibet Agriculture and Animal Husbandry College, Linzhi, Tibet, 860000, China
| | - Zhixiu Wang
- National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Rd., Beijing, 100193, China
| | - Jun Ma
- National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Rd., Beijing, 100193, China
| | - Liyuang Wang
- National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Rd., Beijing, 100193, China
| | - Hao Zhang
- National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Rd., Beijing, 100193, China.
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Novakovic B, Evain-Brion D, Murthi P, Fournier T, Saffery R. Variable DAXX gene methylation is a common feature of placental trophoblast differentiation, preeclampsia, and response to hypoxia. FASEB J 2017; 31:2380-2392. [PMID: 28223336 DOI: 10.1096/fj.201601189rr] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 01/30/2017] [Indexed: 12/13/2022]
Abstract
Placental functioning relies on the appropriate differentiation of progenitor villous cytotrophoblasts (CTBs) into extravillous cytotrophoblasts (EVCTs), including invasive EVCTs, and the multinucleated syncytiotrophoblast (ST) layer. This is accompanied by a general move away from a proliferative, immature phenotype. Genome-scale expression studies have provided valuable insight into genes that are associated with the shift to both an invasive EVCT and ST phenotype, whereas genome-scale DNA methylation analysis has shown that differentiation to ST involves widespread methylation shifts, which are counteracted by low oxygen. In the current study, we sought to identify DNA methylation variation that is associated with transition from CTB to ST in vitro and from a noninvasive to invasive EVCT phenotype after culture on Matrigel. Of the several hundred differentially methylated regions that were identified in each comparison, the majority showed a loss of methylation with differentiation. This included a large differentially methylated region (DMR) in the gene body of death domain-associated protein 6 (DAXX ), which lost methylation during both CTB syncytialization to ST and EVCT differentiation to invasive EVCT. Comparison to publicly available methylation array data identified the same DMR as among the most consistently differentially methylated genes in placental samples from preeclampsia pregnancies. Of interest, in vitro culture of CTB or ST in low oxygen increases methylation in the same region, which correlates with delayed differentiation. Analysis of combined epigenomics signatures confirmed DAXX DMR as a likely regulatory element, and direct gene expression analysis identified a positive association between methylation at this site and DAXX expression levels. The widespread dynamic nature of DAXX methylation in association with trophoblast differentiation and placenta-associated pathologies is consistent with an important role for this gene in proper placental development and function.-Novakovic, B., Evain-Brion, D., Murthi, P., Fournier, T., Saffery, R. Variable DAXX gene methylation is a common feature of placental trophoblast differentiation, preeclampsia, and response to hypoxia.
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Affiliation(s)
- Boris Novakovic
- Cancer and Disease Epigenetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - Danièle Evain-Brion
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S1139, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,PremUp Foundation, Paris, France
| | - Padma Murthi
- Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Victoria, Australia.,Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria, Australia
| | - Thiery Fournier
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S1139, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,PremUp Foundation, Paris, France
| | - Richard Saffery
- Cancer and Disease Epigenetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia; .,Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
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46
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Genome-wide DNA methylation profiles of maternal peripheral blood and placentas: potential risk factors for preeclampsia and validation of GRK5. Genes Genomics 2016. [DOI: 10.1007/s13258-016-0486-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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47
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Killian JK, Dorssers LCJ, Trabert B, Gillis AJM, Cook MB, Wang Y, Waterfall JJ, Stevenson H, Smith WI, Noyes N, Retnakumar P, Stoop JH, Oosterhuis JW, Meltzer PS, McGlynn KA, Looijenga LHJ. Imprints and DPPA3 are bypassed during pluripotency- and differentiation-coupled methylation reprogramming in testicular germ cell tumors. Genome Res 2016; 26:1490-1504. [PMID: 27803193 PMCID: PMC5088592 DOI: 10.1101/gr.201293.115] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 09/14/2016] [Indexed: 12/12/2022]
Abstract
Testicular germ cell tumors (TGCTs) share germline ancestry but diverge phenotypically and clinically as seminoma (SE) and nonseminoma (NSE), the latter including the pluripotent embryonal carcinoma (EC) and its differentiated derivatives, teratoma (TE), yolk sac tumor (YST), and choriocarcinoma. Epigenomes from TGCTs may illuminate reprogramming in both normal development and testicular tumorigenesis. Herein we investigate pure-histological forms of 130 TGCTs for conserved and subtype-specific DNA methylation, including analysis of relatedness to pluripotent stem cell (ESC, iPSC), primordial germ cell (PGC), and differentiated somatic references. Most generally, TGCTs conserve PGC-lineage erasure of maternal and paternal genomic imprints and DPPA3 (also known as STELLA); however, like ESCs, TGCTs show focal recurrent imprinted domain hypermethylation. In this setting of shared physiologic erasure, NSEs harbor a malignancy-associated hypermethylation core, akin to that of a diverse cancer compendium. Beyond these concordances, we found subtype epigenetic homology with pluripotent versus differentiated states. ECs demonstrate a striking convergence of both CpG and CpH (non-CpG) methylation with pluripotent states; the pluripotential methyl-CpH signature crosses species boundaries and is distinct from neuronal methyl-CpH. EC differentiation to TE and YST entails reprogramming toward the somatic state, with loss of methyl-CpH but de novo methylation of pluripotency loci such as NANOG. Extreme methyl-depletion among SE reflects the PGC methylation nadir. Adjacent to TGCTs, benign testis methylation profiles are determined by spermatogenetic proficiency measured by Johnsen score. In sum, TGCTs share collective entrapment in a PGC-like state of genomic-imprint and DPPA3 erasure, recurrent hypermethylation of cancer-associated targets, and subtype-dependent pluripotent, germline, or somatic methylation.
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Affiliation(s)
- J Keith Killian
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Lambert C J Dorssers
- Department of Pathology, Erasmus MC-University Medical Center, Rotterdam, 3015, The Netherlands
| | - Britton Trabert
- Hormonal and Reproductive Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Ad J M Gillis
- Department of Pathology, Erasmus MC-University Medical Center, Rotterdam, 3015, The Netherlands
| | - Michael B Cook
- Hormonal and Reproductive Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Yonghong Wang
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Joshua J Waterfall
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Holly Stevenson
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - William I Smith
- Suburban Hospital Department of Pathology, Bethesda, Maryland 20814, USA
| | - Natalia Noyes
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Parvathy Retnakumar
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - J Hans Stoop
- Department of Pathology, Erasmus MC-University Medical Center, Rotterdam, 3015, The Netherlands
| | - J Wolter Oosterhuis
- Department of Pathology, Erasmus MC-University Medical Center, Rotterdam, 3015, The Netherlands
| | - Paul S Meltzer
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Katherine A McGlynn
- Hormonal and Reproductive Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Leendert H J Looijenga
- Department of Pathology, Erasmus MC-University Medical Center, Rotterdam, 3015, The Netherlands
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48
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Cohen PA, Donini CF, Nguyen NT, Lincet H, Vendrell JA. The dark side of ZNF217, a key regulator of tumorigenesis with powerful biomarker value. Oncotarget 2016; 6:41566-81. [PMID: 26431164 PMCID: PMC4747174 DOI: 10.18632/oncotarget.5893] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 09/18/2015] [Indexed: 12/31/2022] Open
Abstract
The recently described oncogene ZNF217 belongs to a chromosomal region that is frequently amplified in human cancers. Recent findings have revealed that alternative mechanisms such as epigenetic regulation also govern the expression of the encoded ZNF217 protein. Newly discovered molecular functions of ZNF217 indicate that it orchestrates complex intracellular circuits as a new key regulator of tumorigenesis. In this review, we focus on recent research on ZNF217-driven molecular functions in human cancers, revisiting major hallmarks of cancer and highlighting the downstream molecular targets and signaling pathways of ZNF217. We also discuss the exciting translational medicine investigating ZNF217 expression levels as a new powerful biomarker, and ZNF217 as a candidate target for future anti-cancer therapies.
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Affiliation(s)
- Pascale A Cohen
- ISPB, Faculté de Pharmacie, Lyon, France.,Université Lyon 1, Lyon, France.,INSERM U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Caterina F Donini
- ISPB, Faculté de Pharmacie, Lyon, France.,Université Lyon 1, Lyon, France.,INSERM U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Nhan T Nguyen
- ISPB, Faculté de Pharmacie, Lyon, France.,Université Lyon 1, Lyon, France.,INSERM U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Hubert Lincet
- ISPB, Faculté de Pharmacie, Lyon, France.,Université Lyon 1, Lyon, France.,INSERM U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Julie A Vendrell
- ISPB, Faculté de Pharmacie, Lyon, France.,Université Lyon 1, Lyon, France.,INSERM U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
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49
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Cummins EP, Keogh CE. Respiratory gases and the regulation of transcription. Exp Physiol 2016; 101:986-1002. [DOI: 10.1113/ep085715] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 05/23/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Eoin P. Cummins
- School of Medicine; University College Dublin; Belfield 4 Dublin Ireland
| | - Ciara E. Keogh
- School of Medicine; University College Dublin; Belfield 4 Dublin Ireland
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50
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Alivand MR, Sabouni F, Soheili ZS. Probable Chemical Hypoxia Effects on Progress of CNV Through Induction of Promoter CpG Demethylation and Overexpression of IL17RC in Human RPE Cells. Curr Eye Res 2016; 41:1245-54. [DOI: 10.3109/02713683.2015.1095933] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Mohammad Reza Alivand
- Molecular Medicine Department, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
- Department of Medical Genetic, Medical Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Sabouni
- Molecular Medicine Department, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Zahra-Soheila Soheili
- Molecular Medicine Department, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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