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Li WN, Dickson MJ, DeMayo FJ, Wu SP. The role of progesterone receptor isoforms in the myometrium. J Steroid Biochem Mol Biol 2022; 224:106160. [PMID: 35931328 PMCID: PMC9895129 DOI: 10.1016/j.jsbmb.2022.106160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/15/2022] [Accepted: 08/01/2022] [Indexed: 02/08/2023]
Abstract
Myometrial contraction is stringently controlled throughout pregnancy and parturition. Progesterone signaling, effecting through the progesterone receptor (PR), is pivotal in modulating uterine activity. Evidence has shown that two major PR isoforms, PR-A and PR-B, have distinct activities on gene regulation, and the ratio between these isoforms determines the contractility of the myometrium at different gestational stages. Herein, we focus on the regulation of PR activity in the myometrium, especially the differential actions of the two PR isoforms, which maintain uterine quiescence during pregnancy and regulate the switch to a contractile state at the onset of labor. To demonstrate the PR regulatory network and its mechanisms of actions on myometrial activity, we summarized the findings into three parts: Regulation of PR Expression and Isoform Levels, Progesterone Receptor Interacting Factors, and Biological Processes Regulated by Myometrial Progesterone Receptor Isoforms. Recent genomic and epigenomic data, from human specimens and mouse models, are recruited to support the existing knowledge and offer new insights and future directions in myometrial biology.
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Affiliation(s)
- Wan-Ning Li
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Mackenzie J Dickson
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Francesco J DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
| | - San-Pin Wu
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
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2
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Grant AD, Erickson EN. Birth, love, and fear: Physiological networks from pregnancy to parenthood. COMPREHENSIVE PSYCHONEUROENDOCRINOLOGY 2022; 11:100138. [PMID: 35757173 PMCID: PMC9227990 DOI: 10.1016/j.cpnec.2022.100138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 04/21/2022] [Accepted: 04/21/2022] [Indexed: 12/01/2022] Open
Abstract
Pregnancy and childbirth are among the most dramatic physiological and emotional transformations of a lifetime. Despite their central importance to human survival, many gaps remain in our understanding of the temporal progression of and mechanisms underlying the transition to new parenthood. The goal of this paper is to outline the physiological and emotional development of the maternal-infant dyad from late pregnancy to the postpartum period, and to provide a framework to investigate this development using non-invasive timeseries. We focus on the interaction among neuroendocrine, emotional, and autonomic outputs in the context of late pregnancy, parturition, and post-partum. We then propose that coupled dynamics in these outputs can be leveraged to map both physiologic and pathologic pregnancy, parturition, and parenthood. This approach could address gaps in our knowledge and enable early detection or prediction of problems, with both personalized depth and broad population scale.
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Affiliation(s)
- Azure D. Grant
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA, 94720, United States
- Levels Health Inc., 228 Park Ave. South, PMB 63877, New York, NY, 10003, United States
| | - Elise N. Erickson
- Oregon Health and Science University, Portland, OR, 97239, United States
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3
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Li C, Cao M, Zhou X. Role of epigenetics in parturition and preterm birth. Biol Rev Camb Philos Soc 2021; 97:851-873. [PMID: 34939297 DOI: 10.1111/brv.12825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 11/29/2021] [Accepted: 12/02/2021] [Indexed: 12/19/2022]
Abstract
Preterm birth occurs worldwide and is associated with high morbidity, mortality, and economic cost. Although several risk factors associated with parturition and preterm birth have been identified, mechanisms underlying this syndrome remain unclear, thereby limiting the implementation of interventions for prevention and management. Known triggers of preterm birth include conditions related to inflammatory and immunological pathways, as well as genetics and maternal history. Importantly, epigenetics, which is the study of heritable phenotypic changes that occur without alterations in the DNA sequence, may play a role in linking social and environmental risk factors for preterm birth. Epigenetic approaches to the study of preterm birth, including analyses of the effects of microRNAs, long non-coding RNAs, DNA methylation, and histone modification, have contributed to an improved understanding of the molecular bases of both term and preterm birth. Additionally, epigenetic modifications have been linked to factors already associated with preterm birth, including obesity and smoking. The prevention and management of preterm birth remains a challenge worldwide. Although epigenetic analysis provides valuable insights into the causes and risk factors associated with this syndrome, further studies are necessary to determine whether epigenetic approaches can be used routinely for the diagnosis, prevention, and management of preterm birth.
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Affiliation(s)
- Chunjin Li
- College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, China
| | - Maosheng Cao
- College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, China
| | - Xu Zhou
- College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, China
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4
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Histone Deacetylase Inhibitors: Providing New Insights and Therapeutic Avenues for Unlocking Human Birth. Reprod Sci 2021; 29:3134-3146. [PMID: 34713433 DOI: 10.1007/s43032-021-00778-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/19/2021] [Indexed: 02/07/2023]
Abstract
The pregnant uterus remains relaxed throughout fetal gestation before transforming to a contractile phenotype at term to facilitate birth. Despite ongoing progress, the precise mechanisms that regulate this phenotypic transformation are not yet understood. This knowledge gap limits our understanding of how dysregulation of uterine smooth muscle biology contributes to life-threatening obstetric complications, including preterm birth, and hampers our ability to develop effective therapeutic intervention strategies. Protein acetylation plays a vital role in regulating protein structure, function, and subcellular localization, as well as gene transcription availability through regulating chromatin condensation. Histone deacetylase inhibitors (HDACis) are a class of compounds that block the removal of acetyl functional groups from proteins and, as such, have profound effects on important cellular events, including phenotypic transformation. A large body of data now demonstrates that HDACis have profound effects on pregnant human myometrium. Studies to date show that HDACis operate through both genomic and non-genomic mechanisms to affect myometrial function and phenotype. Interestingly, the effects of HDACis on pregnant myometrium are largely "pro-relaxation," including the direct inhibition of contractile machinery as well as repression of pro-labor genes. The "dual action" effects of HDACis make them a powerful tool for unlocking the regulatory processes that underpin myometrial phenotypic transformation and raises prospects of their therapeutic applications. Here, we review the new insights into human myometrial biology that have garnered through the application of HDACis and explore their potential therapeutic application toward the development of novel preterm birth prevention strategies.
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5
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The Regulation of Uterine Function During Parturition: an Update and Recent Advances. Reprod Sci 2020; 27:3-28. [DOI: 10.1007/s43032-019-00001-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 03/19/2019] [Indexed: 12/13/2022]
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6
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Inoue S, Hirota Y, Ueno T, Fukui Y, Yoshida E, Hayashi T, Kojima S, Takeyama R, Hashimoto T, Kiyono T, Ikemura M, Taguchi A, Tanaka T, Tanaka Y, Sakata S, Takeuchi K, Muraoka A, Osuka S, Saito T, Oda K, Osuga Y, Terao Y, Kawazu M, Mano H. Uterine adenomyosis is an oligoclonal disorder associated with KRAS mutations. Nat Commun 2019; 10:5785. [PMID: 31857578 PMCID: PMC6923389 DOI: 10.1038/s41467-019-13708-y] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 11/21/2019] [Indexed: 01/26/2023] Open
Abstract
Uterine adenomyosis is a benign disorder that often co-occurs with endometriosis and/or leiomyoma, and impairs quality of life. The genomic features of adenomyosis are unknown. Here we apply next-generation sequencing to adenomyosis (70 individuals and 192 multi-regional samples), as well as co-occurring leiomyoma and endometriosis, and find recurring KRAS mutations in 26/70 (37.1%) of adenomyosis cases. Multi-regional sequencing reveals oligoclonality in adenomyosis, with some mutations also detected in normal endometrium and/or co-occurring endometriosis. KRAS mutations are more frequent in cases of adenomyosis with co-occurring endometriosis, low progesterone receptor (PR) expression, or progestin (dienogest; DNG) pretreatment. DNG's anti-proliferative effect is diminished via epigenetic silencing of PR in immortalized cells with mutant KRAS. Our genomic analyses suggest that adenomyotic lesions frequently contain KRAS mutations that may reduce DNG efficacy, and that adenomyosis and endometriosis may share molecular etiology, explaining their co-occurrence. These findings could lead to genetically guided therapy and/or relapse risk assessment after uterine-sparing surgery.
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Affiliation(s)
- Satoshi Inoue
- Department of Medical Genomics, The University of Tokyo, Tokyo, 113-0033, Japan.
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, 104-0045, Japan.
| | - Yasushi Hirota
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Toshihide Ueno
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Yamato Fukui
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Emiko Yoshida
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, 113-8421, Japan
| | - Takuo Hayashi
- Department of Human Pathology, Juntendo University Faculty of Medicine, Tokyo, 113-8421, Japan
| | - Shinya Kojima
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Reina Takeyama
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Taiki Hashimoto
- Division of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, 104-0045, Japan
| | - Tohru Kiyono
- Division of Carcinogenesis and Cancer Prevention, and Department of Cell Culture Technology, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Masako Ikemura
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Ayumi Taguchi
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Tomoki Tanaka
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yosuke Tanaka
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Seiji Sakata
- Pathology Project for Molecular Targets, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, 135-8550, Japan
| | - Kengo Takeuchi
- Pathology Project for Molecular Targets, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, 135-8550, Japan
- Clinical Pathology Center, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, 135-8550, Japan
- Division of Pathology, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, 135-8550, Japan
| | - Ayako Muraoka
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Satoko Osuka
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Tsuyoshi Saito
- Department of Human Pathology, Juntendo University Faculty of Medicine, Tokyo, 113-8421, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yasuhisa Terao
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, 113-8421, Japan
| | - Masahito Kawazu
- Department of Medical Genomics, The University of Tokyo, Tokyo, 113-0033, Japan
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Hiroyuki Mano
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
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7
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S. Lashkari B, Anumba DOC. Estradiol alters the immune-responsiveness of cervical epithelial cells stimulated with ligands of Toll-like receptors 2 and 4. PLoS One 2017; 12:e0173646. [PMID: 28296959 PMCID: PMC5351915 DOI: 10.1371/journal.pone.0173646] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 02/22/2017] [Indexed: 11/19/2022] Open
Abstract
The mucosa of the female reproductive tract plays a pivotal role in host defence. Pregnancy must alter immunological mechanisms at this interface to protect the conceptus. We sought to determine how estradiol (E2) alters the immune-responsiveness of cervical epithelial cells to ligand stimulation of Toll-like receptor (TLR)-2 and -4. Human ectocervical epithelial cells (HECECs) were cultured and co-incubated with two concentrations of E2 and peptidoglycan (PGN) or lipopolysaccharide (LPS) over durations that ranged between 10 minutes and 18 hours. Cytometric Bead Array was performed to quantify eight cytokines in the supernatant fluid. In response to PGN, HECECs co-incubated with E2 released lesser quantities of IL-1ß and IFNγ, higher levels of RANTES, and variable levels of IL-6 and IL-8 than those not exposed to E2. In contrast, HECECs co-incubated with LPS and E2 secreted increased levels of IL-1ß, IL-6, IL-8, and IFNγ at 2 and 18 hours than HECECs not exposed to E2, and reduced levels of RANTES at same study time-points. Estradiol alters the immune-responsiveness of cultured HECECs to TLR2 and TLR4 ligands in a complex fashion that appears to vary with bacterial ligand, TLR subtype, and duration of exposure. Our observations are consistent with the functional complexity that this mucosal interface requires for its immunological roles.
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Affiliation(s)
- Behnia S. Lashkari
- Academic Unit of Reproductive and Developmental Medicine, Department of Human Metabolism, University of Sheffield, Jessop Wing, Sheffield, United Kingdom
| | - Dilly O. C. Anumba
- Academic Unit of Reproductive and Developmental Medicine, Department of Human Metabolism, University of Sheffield, Jessop Wing, Sheffield, United Kingdom
- * E-mail:
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8
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Vázquez-Martínez ER, Camacho-Arroyo I, Zarain-Herzberg A, Rodríguez MC, Mendoza-Garcés L, Ostrosky-Wegman P, Cerbón M. Estradiol differentially induces progesterone receptor isoforms expression through alternative promoter regulation in a mouse embryonic hypothalamic cell line. Endocrine 2016; 52:618-31. [PMID: 26676302 DOI: 10.1007/s12020-015-0825-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 11/29/2015] [Indexed: 10/22/2022]
Abstract
Progesterone receptor (PR) presents two main isoforms (PR-A and PR-B) that are regulated by two specific promoters and transcribed from alternative transcriptional start sites. The molecular regulation of PR isoforms expression in embryonic hypothalamus is poorly understood. The aim of the present study was to assess estradiol regulation of PR isoforms in a mouse embryonic hypothalamic cell line (mHypoE-N42), as well as the transcriptional status of their promoters. MHypoE-N42 cells were treated with estradiol for 6 and 12 h. Then, Western blot, real-time quantitative reverse transcription polymerase chain reaction, and chromatin and DNA immunoprecipitation experiments were performed. PR-B expression was transiently induced by estradiol after 6 h of treatment in an estrogen receptor alpha (ERα)-dependent manner. This induction was associated with an increase in ERα phosphorylation (serine 118) and its recruitment to PR-B promoter. After 12 h of estradiol exposure, a downregulation of this PR isoform was associated with a decrease of specific protein 1, histone 3 lysine 4 trimethylation, and RNA polymerase II occupancy on PR-B promoter, without changes in DNA methylation and hydroxymethylation. In contrast, there were no estradiol-dependent changes in PR-A expression that could be related with the epigenetic marks or the transcription factors evaluated. We demonstrate that PR isoforms are differentially regulated by estradiol and that the induction of PR-B expression is associated to specific transcription factors interactions and epigenetic changes in its promoter in embryonic hypothalamic cells.
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Affiliation(s)
- Edgar Ricardo Vázquez-Martínez
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Av. Universidad 3000, Coyoacán, 04510, Mexico, DF, Mexico
| | - Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Av. Universidad 3000, Coyoacán, 04510, Mexico, DF, Mexico
| | | | | | | | - Patricia Ostrosky-Wegman
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, UNAM, Mexico, Mexico
| | - Marco Cerbón
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Av. Universidad 3000, Coyoacán, 04510, Mexico, DF, Mexico.
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9
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Ke W, Chen C, Luo H, Tang J, Zhang Y, Gao W, Yang X, Tian Z, Chang Q, Liang Z. Histone Deacetylase 1 Regulates the Expression of Progesterone Receptor A During Human Parturition by Occupying the Progesterone Receptor A Promoter. Reprod Sci 2016; 23:955-64. [PMID: 26758364 DOI: 10.1177/1933719115625848] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The functional withdrawal of progesterone is mediated by the enhanced expression ratio of the 2 progesterone receptor (PR) isoforms, PRA and PRB, and causes the pregnant human myometrium to switch from a quiet state to a state of excitation-contraction and subsequent laboring. However, the precise mechanisms responsible for alterations in PRA and PRB expression during human parturition have yet to be resolved. In the present study, we report that PRA expression was increased in myometrium samples during labor (P < .001), concomitant with reduced expression of histone deacetylase 1 (HDAC1; P < .01). These results were further confirmed in the laboratory using cultured primary myometrial cells to investigate the effects of HDAC1 knockdown or overexpression. Finally, we verified that HDAC1 downregulated PRA expression by binding to the promoter region of PRA as confirmed by chromatin immunoprecipitation assays (P < .01) and real-time polymerase chain reaction (P < .001). Therefore, the present study not only demonstrates the epigenetic mechanisms underlying human labor but also provides a potential clinical strategy with which to intervene and prevent labor disorders.
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Affiliation(s)
- Weiping Ke
- Department of Gynecology and Obstetrics, Southwestern Hospital, Third Military Medical University, Chongqing, China
| | - Cheng Chen
- Department of Gynecology and Obstetrics, Southwestern Hospital, Third Military Medical University, Chongqing, China
| | - Hui Luo
- Department of Gynecology and Obstetrics, Southwestern Hospital, Third Military Medical University, Chongqing, China
| | - Jun Tang
- Department of Dermatology, The 105th Hospital of PLA, Hefei, China
| | - Yi Zhang
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, China
| | - Weiwu Gao
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, China
| | - Xia Yang
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, China
| | - Zhiqiang Tian
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, China
| | - Qing Chang
- Department of Gynecology and Obstetrics, Southwestern Hospital, Third Military Medical University, Chongqing, China
| | - Zhiqing Liang
- Department of Gynecology and Obstetrics, Southwestern Hospital, Third Military Medical University, Chongqing, China
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Fernando F, Keijser R, Henneman P, van der Kevie-Kersemaekers AMF, Mannens MM, van der Post JA, Afink GB, Ris-Stalpers C. The idiopathic preterm delivery methylation profile in umbilical cord blood DNA. BMC Genomics 2015; 16:736. [PMID: 26419829 PMCID: PMC4588235 DOI: 10.1186/s12864-015-1915-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 09/09/2015] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Preterm delivery is the leading cause of neonatal morbidity and mortality. Two-thirds of preterm deliveries are idiopathic. The initiating molecular mechanisms behind spontaneous preterm delivery are unclear. Umbilical cord blood DNA samples are an easy source of material to study the neonatal state at birth. DNA methylation changes can be exploited as markers to identify spontaneous preterm delivery. To identify methylation differences specific to idiopathic preterm delivery, we assessed genome-wide DNA methylation changes in 24 umbilical cord blood samples (UCB) using the 450 K Illumina methylation array. After quality control, conclusions were based on 11 term and 11 idiopathic preterm born neonates. The differentially methylated positions (DMPs) specific for preterm/term delivery, neonatal sex, use of oxytocin and mode of initiation of labor were calculated by controlling the FDR p value at 0.05. RESULTS The analysis identifies 1855 statistically significant DMPs between preterm and term deliveries of which 508 DMPs are also attributable to clinical variables other than preterm versus term delivery. 1347 DMPs are unique to term vs preterm delivery, of which 196 DMPs do not relate to gestational age as such. Pathway analysis indicated enrichment of genes involved in calcium signalling, myometrial contraction and relaxation pathways. The 1151 DMPs that correlate with advancing gestational age (p < 0.05) include 161 DMPs that match with two previously reported studies on UCB methylation. Additionally, 123 neonatal sex specific DMPs, 97 DMPs specific to the induction of labour and 42 DMPs specific to the mode of initiation of labor were also identified. CONCLUSION This study identifies 196 DMPs in UCB DNA of neonates which do not relate to gestational age or any other clinical variable recorded and are specific to idiopathic preterm delivery. Furthermore, 161 DMPs from our study overlap with previously reported studies of which a subset is also reported to be differentially methylated at 18 years of age. A DMP on MYL4, encoding myosin light chain 4, is a robust candidate for the identification of idiopathic preterm labour as it is identified by all 3 independent studies.
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Affiliation(s)
- Febilla Fernando
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Remco Keijser
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Peter Henneman
- Department of Clinical Genetics, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | | | - Marcel Mam Mannens
- Department of Clinical Genetics, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Joris Am van der Post
- Women's and Children's Clinic, Department of Obstetrics and Gynaecology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Gijs B Afink
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Carrie Ris-Stalpers
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. .,Women's and Children's Clinic, Department of Obstetrics and Gynaecology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
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11
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Zhuang Y, Cui H, Liu S, Zheng D, Liu C. Progesterone receptor B promoter hypermethylation in human placenta after labor onset. Reprod Sci 2015; 22:335-42. [PMID: 25015900 DOI: 10.1177/1933719114542013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To determine the methylation status of progesterone receptor B (PR-B) promoter and how PR-B regulates progesterone action in placenta during human pregnancy. Placentas were obtained from the pregnancy women at term who underwent cesarean delivery and vaginal delivery. The methylation status of the PR-B promoter was analyzed using the methylation-specific polymerase chain reaction (PCR) and bisulfite sequencing PCR. And the messenger RNA (mRNA) and protein expression of the PR-B and DNA methyltransferases (DNMTs) were determined by quantitative real-time PCR and Western blot. Compared with the cesarean group, the placentas of vaginal delivery group had greater levels of PR-B DNA methylation, and the PR-B, DNMT1, DNMT3a, and DNMT3b mRNA and protein expression were significantly decreased. Progesterone receptor B methylation occurs with high frequency after labor onset and may play an important epigenetic mechanism of labor-related PR-B negative expression, thereby mediating the biological process of functional progesterone withdrawal at term for parturition.
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Affiliation(s)
- Yanyan Zhuang
- Division of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - Hong Cui
- Division of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - Sishi Liu
- Division of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - Dongming Zheng
- Division of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - Caixia Liu
- Division of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
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12
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Conti N, Cevenini G, Vannuccini S, Orlandini C, Valensise H, Gervasi MT, Ghezzi F, Di Tommaso M, Severi FM, Petraglia F. Women with endometriosis at first pregnancy have an increased risk of adverse obstetric outcome. J Matern Fetal Neonatal Med 2014; 28:1795-8. [DOI: 10.3109/14767058.2014.968843] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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