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Bolhuis E, Belsky J, Frankenhuis WE, Shalev I, Hastings WJ, Tollenaar MS, O’Donnell KJ, McGill MG, Pokhvisneva I, Lin DT, MacIsaac JL, Kobor MS, de Weerth C, Beijers R. Attachment insecurity and the biological embedding of reproductive strategies: Investigating the role of cellular aging. Biol Psychol 2022; 175:108446. [DOI: 10.1016/j.biopsycho.2022.108446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 11/02/2022]
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McGill MG, Purkey E, Davison CM, Watson A, Bayoumi I. Financial stress during COVID-19: implications for parenting behaviour and child well-being. BMJ Paediatr Open 2022; 6:10.1136/bmjpo-2022-001569. [PMID: 36645755 PMCID: PMC9462077 DOI: 10.1136/bmjpo-2022-001569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/09/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Family financial stress and parenting behaviours are each associated with child behaviours. We sought to explore the association between parent financial stress and child socioemotional and behavioural difficulties during the COVID-19 pandemic and examine parenting behaviour, including overreactive and lax parenting approaches, as a potential mediator to this relationship. METHODS Cross-sectional sample of parent and child data pairings in Ontario, Canada between April and November of 2020. Linear models were used to describe the relationships between financial worry, child Strengths and Difficulties Questionnaire (SDQ) total difficulties and parenting behaviours measured by the Parenting Scale 8-item (PS-8), which includes measures of both overreactive and lax parenting tendencies. Formal mediation testing was performed to assess the potential mediating role of parenting behaviour. RESULTS 528 parent and child pairs were enrolled from largely European ancestry (78%), female (93%) and varied household income levels. Analysis revealed increased financial worry during the COVID-19 pandemic was significantly associated with increased child SDQ total difficulties scores (β=0.23, SE=0.10, p=0.03). This relationship was mediated by reported parenting behaviour, independent of parent education, household income, parent age, parent sex, parent anxiety and child sex (total effect: β=0.69, p=0.02, average causal mediation effects: β=0.50, p=0.02, average direct effects: β=0.19, p=0.08). CONCLUSION Financial stress during the COVID-19 pandemic was associated with poorer child social and emotional well-being. Parenting behaviours measured by the PS-8 significantly mediated these effects. This work supports the importance of policies aimed to alleviate family financial stresses and highlights the potential impact such policies have on child well-being.
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Affiliation(s)
- Megan G McGill
- School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Eva Purkey
- Department of Family Medicine, Queen's University, Kingston, Ontario, Canada.,Department of Public Health Sciences, Queen's University, Kingston, Ontario, Canada
| | - Colleen M Davison
- Department of Public Health Sciences, Queen's University, Kingston, Ontario, Canada
| | - Autumn Watson
- Department of Family Medicine, Queen's University, Kingston, Ontario, Canada.,Indigenous Health Council, Kingston, Ontario, Canada
| | - Imaan Bayoumi
- Department of Family Medicine, Queen's University, Kingston, Ontario, Canada .,Department of Public Health Sciences, Queen's University, Kingston, Ontario, Canada
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McGill MG, Pokhvisneva I, Clappison AS, McEwen LM, Beijers R, Tollenaar M, Pham H, Kee MZL, Garg E, de Mendonça Filho EJ, Karnani N, Silveira PP, Kobor MS, de Weerth C, Meaney MJ, O'Donnell KJ. Reply to: Crossing the "Birth Border" for Epigenetic Effects. Biol Psychiatry 2022; 92:e25-e26. [PMID: 35249723 DOI: 10.1016/j.biopsych.2021.12.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 12/17/2021] [Indexed: 11/02/2022]
Affiliation(s)
- Megan G McGill
- Department of Psychiatry, Douglas Research Centre, McGill University, Montreal, Quebec, Canada; Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Irina Pokhvisneva
- Department of Psychiatry, Douglas Research Centre, McGill University, Montreal, Quebec, Canada; Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Andrew S Clappison
- Department of Psychiatry, Douglas Research Centre, McGill University, Montreal, Quebec, Canada; Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Lisa M McEwen
- Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Roseriet Beijers
- Department of Developmental Psychology, Behavioural Science Institute, Radboud University, Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, the Netherlands
| | - Marieke Tollenaar
- Clinical Psychology Unit, Institute of Psychology, Leiden University, Leiden, the Netherlands
| | - Hung Pham
- Yale Child Study Center and Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Michelle Z L Kee
- Singapore Institute for Clinical Sciences, Agency for Science Technology and Research, Singapore
| | - Elika Garg
- Department of Psychiatry, Douglas Research Centre, McGill University, Montreal, Quebec, Canada; Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | | | - Neerja Karnani
- Singapore Institute for Clinical Sciences, Agency for Science Technology and Research, Singapore; Bioinformatics Institute, Agency for Science Technology and Research, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Patricia P Silveira
- Department of Psychiatry, Douglas Research Centre, McGill University, Montreal, Quebec, Canada; Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Michael S Kobor
- Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada; Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, Ontario, Canada
| | - Carolina de Weerth
- Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, the Netherlands
| | - Michael J Meaney
- Department of Psychiatry, Douglas Research Centre, McGill University, Montreal, Quebec, Canada; Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada; Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, Ontario, Canada; Singapore Institute for Clinical Sciences, Agency for Science Technology and Research, Singapore; Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kieran J O'Donnell
- Department of Psychiatry, Douglas Research Centre, McGill University, Montreal, Quebec, Canada; Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada; Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, Ontario, Canada; Yale Child Study Center and Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, Yale University, New Haven, Connecticut.
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McGill MG, Pokhvisneva I, Clappison AS, McEwen LM, Beijers R, Tollenaar MS, Pham H, Kee MZL, Garg E, de Mendonça Filho EJ, Karnani N, Silveira PP, Kobor MS, de Weerth C, Meaney MJ, O'Donnell KJ. Maternal Prenatal Anxiety and the Fetal Origins of Epigenetic Aging. Biol Psychiatry 2022; 91:303-312. [PMID: 34756561 DOI: 10.1016/j.biopsych.2021.07.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The fetal origins of mental health is a well-established framework that currently lacks a robust index of the biological embedding of prenatal adversity. The Pediatric-Buccal-Epigenetic (PedBE) clock is a novel epigenetic tool that associates with aspects of the prenatal environment, but additional validation in longitudinal datasets is required. Likewise, the relationship between prenatal maternal mental health and the PedBE clock has not been described. METHODS Longitudinal cohorts from the Netherlands (Basal Influences on Baby Development [BIBO] n = 165) and Singapore (Growing Up in Singapore Towards Healthy Outcomes [GUSTO] n = 340) provided data on prenatal maternal anxiety and longitudinal assessments of buccal cell-derived genome-wide DNA methylation assessed at 6 and 10 years of age in BIBO, and at 3, 9, and 48 months of age in GUSTO. Measures of epigenetic age acceleration were calculated using the PedBE clock and benchmarked against an established multi-tissue epigenetic predictor. RESULTS Prenatal maternal anxiety predicted child PedBE epigenetic age acceleration in both cohorts, with effects largely restricted to males and not females. These results were independent of obstetric, socioeconomic, and genetic risk factors, with a larger effect size for prenatal anxiety than depression. PedBE age acceleration predicted increased externalizing symptoms in males from mid- to late childhood in the BIBO cohort only. CONCLUSIONS These findings point to the fetal origins of epigenetic age acceleration and reveal an increased sensitivity in males. Convergent evidence underscores the societal importance of providing timely and effective mental health support to pregnant individuals, which may have lasting consequences for both mother and child.
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Affiliation(s)
- Megan G McGill
- Douglas Hospital Research Centre, McGill University, Montreal, Quebec, Canada; Department of Psychiatry, and Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Irina Pokhvisneva
- Douglas Hospital Research Centre, McGill University, Montreal, Quebec, Canada; Department of Psychiatry, and Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Andrew S Clappison
- Douglas Hospital Research Centre, McGill University, Montreal, Quebec, Canada; Department of Psychiatry, and Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Lisa M McEwen
- Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Roseriet Beijers
- Department of Developmental Psychology, Radboud University, Nijmegen, the Netherlands; Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, the Netherlands
| | - Marieke S Tollenaar
- Department of Clinical Psychology, Institute of Psychology and Leiden Institute for Brain and Cognition, Leiden University, Leiden, the Netherlands
| | - Hung Pham
- Yale Child Study Center and Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, Yale University, New Haven, Connecticut
| | | | - Elika Garg
- Douglas Hospital Research Centre, McGill University, Montreal, Quebec, Canada; Department of Psychiatry, and Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | | | - Neerja Karnani
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Bioinformatics Institute, Agency for Science, Technology, and Research, Singapore
| | - Patricia P Silveira
- Douglas Hospital Research Centre, McGill University, Montreal, Quebec, Canada; Department of Psychiatry, and Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada
| | - Michael S Kobor
- Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada; Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, Ontario, Canada
| | - Carolina de Weerth
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, the Netherlands
| | - Michael J Meaney
- Douglas Hospital Research Centre, McGill University, Montreal, Quebec, Canada; Department of Psychiatry, and Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada; Singapore Institute for Clinical Sciences, Singapore; Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, Ontario, Canada; Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kieran J O'Donnell
- Douglas Hospital Research Centre, McGill University, Montreal, Quebec, Canada; Department of Psychiatry, and Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montreal, Quebec, Canada; Yale Child Study Center and Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, Yale University, New Haven, Connecticut; Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, Ontario, Canada.
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McEwen LM, O'Donnell KJ, McGill MG, Edgar RD, Jones MJ, MacIsaac JL, Lin DTS, Ramadori K, Morin A, Gladish N, Garg E, Unternaehrer E, Pokhvisneva I, Karnani N, Kee MZL, Klengel T, Adler NE, Barr RG, Letourneau N, Giesbrecht GF, Reynolds JN, Czamara D, Armstrong JM, Essex MJ, de Weerth C, Beijers R, Tollenaar MS, Bradley B, Jovanovic T, Ressler KJ, Steiner M, Entringer S, Wadhwa PD, Buss C, Bush NR, Binder EB, Boyce WT, Meaney MJ, Horvath S, Kobor MS. The PedBE clock accurately estimates DNA methylation age in pediatric buccal cells. Proc Natl Acad Sci U S A 2020; 117:23329-23335. [PMID: 31611402 PMCID: PMC7519312 DOI: 10.1073/pnas.1820843116] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The development of biological markers of aging has primarily focused on adult samples. Epigenetic clocks are a promising tool for measuring biological age that show impressive accuracy across most tissues and age ranges. In adults, deviations from the DNA methylation (DNAm) age prediction are correlated with several age-related phenotypes, such as mortality and frailty. In children, however, fewer such associations have been made, possibly because DNAm changes are more dynamic in pediatric populations as compared to adults. To address this gap, we aimed to develop a highly accurate, noninvasive, biological measure of age specific to pediatric samples using buccal epithelial cell DNAm. We gathered 1,721 genome-wide DNAm profiles from 11 different cohorts of typically developing individuals aged 0 to 20 y old. Elastic net penalized regression was used to select 94 CpG sites from a training dataset (n = 1,032), with performance assessed in a separate test dataset (n = 689). DNAm at these 94 CpG sites was highly predictive of age in the test cohort (median absolute error = 0.35 y). The Pediatric-Buccal-Epigenetic (PedBE) clock was characterized in additional cohorts, showcasing the accuracy in longitudinal data, the performance in nonbuccal tissues and adult age ranges, and the association with obstetric outcomes. The PedBE tool for measuring biological age in children might help in understanding the environmental and contextual factors that shape the DNA methylome during child development, and how it, in turn, might relate to child health and disease.
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Affiliation(s)
- Lisa M McEwen
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Kieran J O'Donnell
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada H4H 1R3
- Child and Brain Development Program, Canadian Institute for Advanced Research (CIFAR) Institute, Toronto, ON, Canada M5G 1M1
| | - Megan G McGill
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada H4H 1R3
| | - Rachel D Edgar
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Meaghan J Jones
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Julia L MacIsaac
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - David Tse Shen Lin
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Katia Ramadori
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Alexander Morin
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Nicole Gladish
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Elika Garg
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada H4H 1R3
| | - Eva Unternaehrer
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada H4H 1R3
| | - Irina Pokhvisneva
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada H4H 1R3
| | - Neerja Karnani
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR); Singapore 117609
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596
| | - Michelle Z L Kee
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR); Singapore 117609
| | - Torsten Klengel
- Department of Psychiatry, Harvard Medical School-McLean Hospital, Belmont, MA 02478
| | - Nancy E Adler
- Child and Brain Development Program, Canadian Institute for Advanced Research (CIFAR) Institute, Toronto, ON, Canada M5G 1M1
- Department of Psychiatry, University of California, San Francisco, CA 94143
- Department of Pediatrics, University of California, San Francisco, CA 94143
| | - Ronald G Barr
- Child and Brain Development Program, Canadian Institute for Advanced Research (CIFAR) Institute, Toronto, ON, Canada M5G 1M1
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - Nicole Letourneau
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada T2N 4N1
- Faculty of Nursing, University of Calgary, Calgary, AB, Canada T2N 1N4
| | - Gerald F Giesbrecht
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada T2N 4N1
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada T2N 1N4
| | - James N Reynolds
- Department of Biomedical and Molecular Sciences, School of Medicine, Queen's University, Kingston, ON, Canada K7L 3N6
| | - Darina Czamara
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Jeffrey M Armstrong
- Department of Psychiatry, University of Wisconsin-Madison, Madison, WI 53706
| | - Marilyn J Essex
- Department of Psychiatry, University of Wisconsin-Madison, Madison, WI 53706
| | - Carolina de Weerth
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 HR, Nijmegen, The Netherlands
| | - Roseriet Beijers
- Behavioural Science Institute, Radboud University, 6525 HR, Nijmegen, The Netherlands
| | - Marieke S Tollenaar
- Leiden Institute for Brain and Cognition, Institute of Psychology, Leiden University, 2300 RB, Leiden, The Netherlands
| | - Bekh Bradley
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322
| | - Tanja Jovanovic
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322
| | - Kerry J Ressler
- Department of Psychiatry, Harvard Medical School-McLean Hospital, Belmont, MA 02478
| | - Meir Steiner
- Department of Psychiatry and Behavioural Neurosciences, St. Joseph's Healthcare Hamilton, McMaster University, Hamilton, ON, Canada L8S 4L8
| | - Sonja Entringer
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, 10117 Berlin, Germany
- Development, Health, and Disease Research Program, University of California, Irvine, CA 92617
| | - Pathik D Wadhwa
- Development, Health, and Disease Research Program, University of California, Irvine, CA 92617
- Department of Psychiatry and Human Behavior, School of Medicine, University of California, Irvine, CA, 92617
- Department of Obstetrics and Gynecology, School of Medicine, University of California, Irvine, CA, 92617
- Department of Epidemiology, School of Medicine, University of California, Irvine, CA, 92617
| | - Claudia Buss
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, 10117 Berlin, Germany
| | - Nicole R Bush
- Department of Psychiatry, University of California, San Francisco, CA 94143
| | - Elisabeth B Binder
- Child and Brain Development Program, Canadian Institute for Advanced Research (CIFAR) Institute, Toronto, ON, Canada M5G 1M1
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322
| | - W Thomas Boyce
- Child and Brain Development Program, Canadian Institute for Advanced Research (CIFAR) Institute, Toronto, ON, Canada M5G 1M1
- Department of Psychiatry, University of California, San Francisco, CA 94143
- Department of Pediatrics, University of California, San Francisco, CA 94143
| | - Michael J Meaney
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada H4H 1R3
- Child and Brain Development Program, Canadian Institute for Advanced Research (CIFAR) Institute, Toronto, ON, Canada M5G 1M1
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR); Singapore 117609
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596
| | - Steve Horvath
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA 90095
| | - Michael S Kobor
- Department of Medical Genetics, University of British Columbia-BC Children's Hospital Research Institute, Vancouver, BC, Canada V5Z 4H4;
- Child and Brain Development Program, Canadian Institute for Advanced Research (CIFAR) Institute, Toronto, ON, Canada M5G 1M1
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Jaju Bhattad G, Jeyarajah MJ, McGill MG, Dumeaux V, Okae H, Arima T, Lajoie P, Bérubé NG, Renaud SJ. Histone deacetylase 1 and 2 drive differentiation and fusion of progenitor cells in human placental trophoblasts. Cell Death Dis 2020; 11:311. [PMID: 32366868 PMCID: PMC7198514 DOI: 10.1038/s41419-020-2500-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 01/06/2023]
Abstract
Cell fusion occurs when several cells combine to form a multinuclear aggregate (syncytium). In human placenta, a syncytialized trophoblast (syncytiotrophoblast) layer forms the primary interface between maternal and fetal tissue, facilitates nutrient and gas exchange, and produces hormones vital for pregnancy. Syncytiotrophoblast development occurs by differentiation of underlying progenitor cells called cytotrophoblasts, which then fuse into the syncytiotrophoblast layer. Differentiation is associated with chromatin remodeling and specific changes in gene expression mediated, at least in part, by histone acetylation. However, the epigenetic regulation of human cytotrophoblast differentiation and fusion is poorly understood. In this study, we found that human syncytiotrophoblast development was associated with deacetylation of multiple core histone residues. Chromatin immunoprecipitation sequencing revealed chromosomal regions that exhibit dynamic alterations in histone H3 acetylation during differentiation. These include regions containing genes classically associated with cytotrophoblast differentiation (TEAD4, TP63, OVOL1, CGB), as well as near genes with novel regulatory roles in trophoblast development and function, such as LHX4 and SYDE1. Prevention of histone deacetylation using both pharmacological and genetic approaches inhibited trophoblast fusion, supporting a critical role of this process for trophoblast differentiation. Finally, we identified the histone deacetylases (HDACs) HDAC1 and HDAC2 as the critical mediators driving cytotrophoblast differentiation. Collectively, these findings provide novel insights into the epigenetic mechanisms underlying trophoblast fusion during human placental development.
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Affiliation(s)
- Gargi Jaju Bhattad
- 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
| | - Megan G McGill
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | - Vanessa Dumeaux
- Department of Pediatrics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,PERFORM Centre, Concordia University, Montréal, QC, Canada
| | - Hiroaki Okae
- Department of Informative Genetics, Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takahiro Arima
- Department of Informative Genetics, Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Patrick Lajoie
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | - Nathalie G Bérubé
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Department of Pediatrics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Department of Oncology, 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
| | - 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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Fulton AB, Greenwood V, Hansen RM, McGill MG, Russell RM, Deuster PA, Kappelman MC. Dark adaptation in hyperprolactinemic women. Invest Ophthalmol Vis Sci 1989; 30:1177-80. [PMID: 2732032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
In a study to test the hypothesis that hyperprolactinemia is caused by subclinical zinc deficiency, dark-adaptation curves of seven women with primary hyperprolactinemia and seven normal women were measured to assess tissue zinc status. Although plasma zinc levels, final dark-adapted thresholds, and the time courses of rod dark-adaptation did not differ significantly between patients and normal subjects, the median cone plateau of the hyperprolactinemic patients was significantly higher (0.66 log units) than that of normal subjects. It appears unlikely that derangements of vitamin A metabolism, for which zinc is a cofactor, explains this unanticipated and subtle abnormality in dark adaptation of the hyperprolactinemic women.
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Affiliation(s)
- A B Fulton
- Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts
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Abstract
The thresholds of dark adapted RCS rats and controls were estimated from optokinetic responses to blue stimuli, and compared to thresholds derived from b-wave stimulus/response functions. The rats were tested at ages 25, 30 and 35 days, a period during which the RCS degeneration is evolving and normal retinal development is proceeding. At all ages the OKN thresholds of control rats were lower than those of the RCS rats, but only by age 30 days did b-wave thresholds discriminate RCS from controls. As the RCS disease progressed b-wave thresholds increased, but OKN thresholds did not change significantly. The discrepancy between the OKN and b-wave results may be due largely to the smaller OKN stimulus field, which probably stimulates mainly the posterior retina where the RCS degeneration is most advanced.
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Affiliation(s)
- M G McGill
- Department of Ophthalmology, Children's Hospital, Boston, MA
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