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Lu X, Mao J, Qian C, Lei H, Mu F, Sun H, Yan S, Fang Z, Lu J, Xu Q, Dong J, Su D, Wang J, Jin N, Chen S, Wang X. High estrogen during ovarian stimulation induced loss of maternal imprinted methylation that is essential for placental development via overexpression of TET2 in mouse oocytes. Cell Commun Signal 2024; 22:135. [PMID: 38374066 PMCID: PMC10875811 DOI: 10.1186/s12964-024-01516-x] [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: 12/17/2023] [Accepted: 02/07/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Ovarian stimulation (OS) during assisted reproductive technology (ART) appears to be an independent factor influencing the risk of low birth weight (LBW). Previous studies identified the association between LBW and placenta deterioration, potentially resulting from disturbed genomic DNA methylation in oocytes caused by OS. However, the mechanisms by which OS leads to aberrant DNA methylation patterns in oocytes remains unclear. METHODS Mouse oocytes and mouse parthenogenetic embryonic stem cells (pESCs) were used to investigate the roles of OS in oocyte DNA methylation. Global 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) levels were evaluated using immunofluorescence or colorimetry. Genome-wide DNA methylation was quantified using an Agilent SureSelectXT mouse Methyl-Seq. The DNA methylation status of mesoderm-specific transcript homologue (Mest) promoter region was analyzed using bisulfite sequencing polymerase chain reaction (BSP). The regulatory network between estrogen receptor alpha (ERα, ESR1) and DNA methylation status of Mest promoter region was further detected following the knockdown of ERα or ten-eleven translocation 2 (Tet2). RESULTS OS resulted in a significant decrease in global 5mC levels and an increase in global 5hmC levels in oocytes. Further investigation revealed that supraphysiological β-estradiol (E2) during OS induced a notable decrease in DNA 5mC and an increase in 5hmC in both oocytes and pESCs of mice, whereas inhibition of estrogen signaling abolished such induction. Moreover, Tet2 may be a direct transcriptional target gene of ERα, and through the ERα-TET2 axis, supraphysiological E2 resulted in the reduced global levels of DNA 5mC. Furthermore, we identified that MEST, a maternal imprinted gene essential for placental development, lost its imprinted methylation in parthenogenetic placentas originating from OS, and ERα and TET2 combined together to form a protein complex that may promote Mest demethylation. CONCLUSIONS In this study, a possible mechanism of loss of DNA methylation in oocyte caused by OS was revealed, which may help increase safety and reduce epigenetic abnormalities in ART procedures.
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Affiliation(s)
- Xueyan Lu
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Jiaqin Mao
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Chenxi Qian
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Hui Lei
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Fei Mu
- Department of Pharmacy, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Huijun Sun
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Song Yan
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Zheng Fang
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Jie Lu
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Qian Xu
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Jie Dong
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Danjie Su
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Jingjing Wang
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Ni Jin
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China
| | - Shuqiang Chen
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China.
| | - Xiaohong Wang
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Baqiao District, Xi'an, 710000, Shaanxi Province, China.
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Choi NY, Lee MY, Jeong S. Recent Advances in 3D-Cultured Brain Tissue Models Derived from Human iPSCs. BIOCHIP JOURNAL 2022. [DOI: 10.1007/s13206-022-00075-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Choi NY, Bang JS, Park YS, Lee M, Hwang HS, Ko K, Myung SC, Tapia N, Schöler HR, Kim GJ, Ko K. Generation of human androgenetic induced pluripotent stem cells. Sci Rep 2020; 10:3614. [PMID: 32109236 PMCID: PMC7046633 DOI: 10.1038/s41598-020-60363-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/10/2020] [Indexed: 11/09/2022] Open
Abstract
In humans, parthenogenesis and androgenesis occur naturally in mature cystic ovarian teratomas and androgenetic complete hydatidiform moles (CHM), respectively. Our previous study has reported human parthenogenetic induced pluripotent stem cells from ovarian teratoma-derived fibroblasts and screening of imprinted genes using genome-wide DNA methylation analysis. However, due to the lack of the counterparts of uniparental cells, identification of new imprinted differentially methylated regions has been limited. CHM are inherited from only the paternal genome. In this study, we generated human androgenetic induced pluripotent stem cells (AgHiPSCs) from primary androgenetic fibroblasts derived from CHM. To investigate the pluripotency state of AgHiPSCs, we analyzed their cellular and molecular characteristics. We tested the DNA methylation status of imprinted genes using bisulfite sequencing and demonstrated the androgenetic identity of AgHiPSCs. AgHiPSCs might be an attractive alternative source of human androgenetic embryonic stem cells. Furthermore, AgHiPSCs can be used in regenerative medicine, for analysis of genomic imprinting, to study imprinting-related development, and for disease modeling in humans.
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Affiliation(s)
- Na Young Choi
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea
- Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, 05029, Republic of Korea
| | - Jin Seok Bang
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea
- Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, 05029, Republic of Korea
| | - Yo Seph Park
- Department of Stem Cell Research, TJC Life Research and Development Center, TJC Life, Seoul, 06698, Republic of Korea
| | - Minseong Lee
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea
- Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, 05029, Republic of Korea
| | - Han Sung Hwang
- Department of Obstetrics and Gynecology, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, 05030, Republic of Korea
| | - Kisung Ko
- Department of Medicine, College of Medicine, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Soon Chul Myung
- Department of Urology, Chung-Ang University College of Medicine, Seoul, 06974, Republic of Korea
| | - Natalia Tapia
- Institute of Biomedicine of Valencia, Spanish National Research Council, Jaime Roig 11, 46010, Valencia, Spain
| | - Hans R Schöler
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, 48149, Münster, Germany
- Medical Faculty, University of Münster, 48149, Münster, Germany
| | - Gwang Jun Kim
- Department of Obstetrics and Gynecology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, 06974, Republic of Korea
| | - Kinarm Ko
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea.
- Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, 05029, Republic of Korea.
- Research Institute of Medical Science, Konkuk University, Seoul, 05029, Republic of Korea.
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Hong M, Hwang JT, Shin EJ, Hur HJ, Kang K, Choi HK, Chung MY, Chung S, Sung MJ, Park JH. Genome-wide analysis of DNA methylation identifies novel differentially methylated regions associated with lipid accumulation improved by ethanol extracts of Allium tubersosum and Capsella bursa-pastoris in a cell model. PLoS One 2019; 14:e0217877. [PMID: 31170227 PMCID: PMC6553759 DOI: 10.1371/journal.pone.0217877] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 05/20/2019] [Indexed: 02/06/2023] Open
Abstract
Hepatic steatosis is the most common chronic liver disease in Western countries. Both genetic and environmental factors are known as causes of the disease although their underlying mechanisms have not been fully understood. This study investigated the association of DNA methylation with oleic acid-induced hepatic steatosis. It also examined effects of food components on DNA methylation in hepatic steatosis. Genome-wide DNA methylation of oleic acid (OA)-induced lipid accumulation in vitro cell model was investigated using reduced representation bisulfite sequencing. Changes of DNA methylation were also analyzed after treatment with food components decreasing OA-induced lipid accumulation in the model. We identified total 81 regions that were hypermethylated by OA but hypomethylated by food components or vice versa. We determined the expression of seven genes proximally located at the selected differentially methylated regions. Expression levels of WDR27, GNAS, DOK7, MCF2L, PRKG1, and CMYA5 were significantly different between control vs OA and OA vs treatment with food components. We demonstrated that DNA methylation was associated with expression of genes in the model of hepatic steatosis. We also found that food components reversely changed DNA methylation induced by OA and alleviated lipid accumulation. These results suggest that DNA methylation is one of the mechanisms causing the hepatic steatosis and its regulation by food components provides insights that may prevent or alleviate lipid accumulation.
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Affiliation(s)
- Moonju Hong
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
- Department of Food Biotechnology, University of Science & Technology, Daejeon, Republic of Korea
| | - Jin-Taek Hwang
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
- Department of Food Biotechnology, University of Science & Technology, Daejeon, Republic of Korea
| | - Eun Ju Shin
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
| | - Haeng Jeon Hur
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
| | - Keunsoo Kang
- Department of Microbiology, College of Natural Sciences, Dankook University, Cheonan, Republic of Korea
| | - Hyo-Kyoung Choi
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
| | - Min-Yu Chung
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
| | - Sangwon Chung
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
| | - Mi Jeong Sung
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
| | - Jae-Ho Park
- Division of Food Functionality, Korea Food Research Institute, Iseo-myeon, Wanju-gun, Republic of Korea
- * E-mail:
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Lee HJ, Choi NY, Lee SW, Lee Y, Ko K, Kim GJ, Hwang HS, Ko K. Alteration of Genomic Imprinting Status of Human Parthenogenetic Induced Pluripotent Stem Cells during Neural Lineage Differentiation. Int J Stem Cells 2019; 12:31-42. [PMID: 30836722 PMCID: PMC6457707 DOI: 10.15283/ijsc18084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 11/19/2018] [Accepted: 12/29/2018] [Indexed: 12/16/2022] Open
Abstract
Background and Objectives Genomic imprinting modulates growth and development in mammals and is associated with genetic disorders. Although uniparental embryonic stem cells have been used to study genomic imprinting, there is an ethical issue associated with the destruction of human embryos. In this study, to investigate the genomic imprinting status in human neurodevelopment, we used human uniparental induced pluripotent stem cells (iPSCs) that possessed only maternal alleles and differentiated into neural cell lineages. Methods Human somatic iPSCs (hSiPSCs) and human parthenogenetic iPSCs (hPgiPSCs) were differentiated into neural stem cells (NSCs) and named hSi-NSCs and hPgi-NSCs respectively. DNA methylation and gene expression of imprinted genes related neurodevelopment was analyzed during reprogramming and neural lineage differentiation. Results The DNA methylation and expression of imprinted genes were altered or maintained after differentiation into NSCs. The imprinting status in NSCs were maintained after terminal differentiation into neurons and astrocytes. In contrast, gene expression was differentially presented in a cell type-specific manner. Conclusions This study suggests that genomic imprinting should be determined in each neural cell type because the genomic imprinting status can differ in a cell type-specific manner. In addition, the in vitro model established in this study would be useful for verifying the epigenetic alteration of imprinted genes which can be differentially changed during neurodevelopment in human and for screening novel imprinted genes related to neurodevelopment. Moreover, the confirmed genomic imprinting status could be used to find out an abnormal genomic imprinting status of imprinted genes related with neurogenetic disorders according to uniparental genotypes.
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Affiliation(s)
- Hye Jeong Lee
- Departement of Stem Cell Biology, Konkuk University School of Medicine, Seoul, Korea.,Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, Korea
| | - Na Young Choi
- Departement of Stem Cell Biology, Konkuk University School of Medicine, Seoul, Korea.,Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, Korea
| | - Seung-Wong Lee
- Departement of Stem Cell Biology, Konkuk University School of Medicine, Seoul, Korea.,Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, Korea
| | - Yukyeong Lee
- Departement of Stem Cell Biology, Konkuk University School of Medicine, Seoul, Korea.,Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, Korea
| | - Kisung Ko
- Departments of Medicine, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Gwang Jun Kim
- Departments of Obstetrics and Gynecology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Han Sung Hwang
- Department of Obstetrics and Gynecology, Konkuk University School of Medicine, Seoul, Korea
| | - Kinarm Ko
- Departement of Stem Cell Biology, Konkuk University School of Medicine, Seoul, Korea.,Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul, Korea.,Research Institute of Medical Science, Konkuk University, Seoul, Korea
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A genome-wide search for new imprinted genes in the human placenta identifies DSCAM as the first imprinted gene on chromosome 21. Eur J Hum Genet 2018; 27:49-60. [PMID: 30206355 DOI: 10.1038/s41431-018-0267-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 07/16/2018] [Accepted: 08/23/2018] [Indexed: 11/08/2022] Open
Abstract
We identified, through a genome-wide search for new imprinted genes in the human placenta, DSCAM (Down Syndrome Cellular Adhesion Molecule) as a paternally expressed imprinted gene. Our work revealed the presence of a Differentially Methylated Region (DMR), located within intron 1 that might regulate the imprinting in the region. This DMR showed a maternal allele methylation, compatible with its paternal expression. We showed that DSCAM is present in endothelial cells and the syncytiotrophoblast layer of the human placenta. In mouse, Dscam expression is biallelic in foetal brain and placenta excluding any possible imprinting in these tissues. This gene encodes a cellular adhesion molecule mainly known for its role in neurone development but its function in the placenta remains unclear. We report here the first imprinted gene located on human chromosome 21 with potential clinical implications.
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