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Vidal AC, Sosnowski DW, Marchesoni J, Grenier C, Thorp J, Murphy SK, Johnson SB, Schlief W, Hoyo C. Maternal adverse childhood experiences (ACEs) and offspring imprinted gene DMR methylation at birth. Epigenetics 2024; 19:2293412. [PMID: 38100614 PMCID: PMC10730185 DOI: 10.1080/15592294.2023.2293412] [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: 05/24/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023] Open
Abstract
Adverse childhood experiences (ACEs) contribute to numerous negative health outcomes across the life course and across generations. Here, we extend prior work by examining the association of maternal ACEs, and their interaction with financial stress and discrimination, with methylation status within eight differentially methylated regions (DMRs) in imprinted domains in newborns. ACEs, financial stress during pregnancy, and experience of discrimination were self-reported among 232 pregnant women. DNA methylation was assessed at PEG10/SGCE, NNAT, IGF2, H19, PLAGL1, PEG3, MEG3-IG, and DLK1/MEG3 regulatory sequences using pyrosequencing. Using multivariable linear regression models, we found evidence to suggest that financial stress was associated with hypermethylation of MEG3-IG in non-Hispanic White newborns; discrimination was associated with hypermethylation of IGF2 and NNAT in Hispanic newborns, and with hypomethylation of PEG3 in non-Hispanic Black newborns. We also found evidence that maternal ACEs interacted with discrimination to predict offspring PLAGL1 altered DMR methylation, in addition to interactions between maternal ACEs score and discrimination predicting H19 and SGCE/PEG10 altered methylation in non-Hispanic White newborns. However, these interactions were not statistically significant after multiple testing corrections. Findings from this study suggest that maternal ACEs, discrimination, and financial stress are associated with newborn aberrant methylation in imprinted gene regions.
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Affiliation(s)
- Adriana C. Vidal
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - David W. Sosnowski
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Joddy Marchesoni
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - Carole Grenier
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, USA
| | - John Thorp
- Department of Obstetrics and Gynecology, Maternal and Child Health, UNC Gillings School of Public Health, UNC, Chapel Hill, NC, USA
| | - Susan K. Murphy
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, USA
| | - Sara B. Johnson
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Department of Population, Family & Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - William Schlief
- Johns Hopkins All Children’s Pediatric Biorepository, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, USA
| | - Cathrine Hoyo
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
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van der Veer BK, Chen L, Tsaniras SC, Brangers W, Chen Q, Schroiff M, Custers C, Kwak HH, Khoueiry R, Cabrera R, Gross SS, Finnell RH, Lei Y, Koh KP. Epigenetic regulation by TET1 in gene-environmental interactions influencing susceptibility to congenital malformations. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.21.581196. [PMID: 39026762 PMCID: PMC11257484 DOI: 10.1101/2024.02.21.581196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
The etiology of neural tube defects (NTDs) involves complex gene-environmental interactions. Folic acid (FA) prevents NTDs, but the mechanisms remain poorly understood and at least 30% of human NTDs resist the beneficial effects of FA supplementation. Here, we identify the DNA demethylase TET1 as a nexus of folate-dependent one-carbon metabolism and genetic risk factors post-neural tube closure. We determine that cranial NTDs in Tet1 -/- embryos occur at two to three times higher penetrance in genetically heterogeneous than in homogeneous genetic backgrounds, suggesting a strong impact of genetic modifiers on phenotypic expression. Quantitative trait locus mapping identified a strong NTD risk locus in the 129S6 strain, which harbors missense and modifier variants at genes implicated in intracellular endocytic trafficking and developmental signaling. NTDs across Tet1 -/- strains are resistant to FA supplementation. However, both excess and depleted maternal FA diets modify the impact of Tet1 loss on offspring DNA methylation primarily at neurodevelopmental loci. FA deficiency reveals susceptibility to NTD and other structural brain defects due to haploinsufficiency of Tet1. In contrast, excess FA in Tet1 -/- embryos drives promoter DNA hypermethylation and reduced expression of multiple membrane solute transporters, including a FA transporter, accompanied by loss of phospholipid metabolites. Overall, our study unravels interactions between modified maternal FA status, Tet1 gene dosage and genetic backgrounds that impact neurotransmitter functions, cellular methylation and individual susceptibilities to congenital malformations, further implicating that epigenetic dysregulation may underlie NTDs resistant to FA supplementation.
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Affiliation(s)
- Bernard K. van der Veer
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Lehua Chen
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Spyridon Champeris Tsaniras
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Wannes Brangers
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Qiuying Chen
- Department of Pharmacology, Weill Cornell Medical College, New York, NY 10065, USA
| | - Mariana Schroiff
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Colin Custers
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Harm H.M. Kwak
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Rita Khoueiry
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Robert Cabrera
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
| | - Steven S. Gross
- Department of Pharmacology, Weill Cornell Medical College, New York, NY 10065, USA
| | - Richard H. Finnell
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Human Genetics, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Yunping Lei
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
| | - Kian Peng Koh
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
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Chen X, Liu F, Li B, Wang Y, Yuan L, Yin A, Chen Q, Hu W, Yao Y, Zhang M, Wu Y, Chen K. Neuropathy-associated Fars2 deficiency affects neuronal development and potentiates neuronal apoptosis by impairing mitochondrial function. Cell Biosci 2022; 12:103. [PMID: 35794642 PMCID: PMC9258231 DOI: 10.1186/s13578-022-00838-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 06/23/2022] [Indexed: 11/22/2022] Open
Abstract
Background Neurodegenerative diseases encompass an extensive and heterogeneous group of nervous system disorders which are characterized by progressive degeneration and death of neurons. Many lines of evidence suggest the participation of mitochondria dysfunction in these diseases. Mitochondrial phenylalanyl-tRNA synthetase, encoded by FARS2, catalyzes the transfer of phenylalanine to its cognate tRNA for protein synthesis. As a member of mt-aaRSs genes, FARS2 missense homozygous mutation c.424G > T (p.D142Y) found in a Chinese consanguineous family first built the relationship between pure hereditary spastic paraplegia (HSP) and FARS2 gene. More FARS2 variations were subsequently found to cause heterogeneous group of neurologic disorders presenting three main phenotypic manifestations: infantile-onset epileptic mitochondrial encephalopathy, later-onset spastic paraplegia and juvenile onset refractory epilepsy. Studies showed that aminoacylation activity is frequently disrupt in cases with FARS2 mutations, indicating a loss-of-function mechanism. However, the underlying pathogenesis of neuropathy-associated Fars2 deficiency is still largely unknown. Results Early gestation lethality of global Fars2 knockout mice was observed prior to neurogenesis. The conditional Fars2 knockout-mouse model delayed lethality to late-gestation, resulting in a thinner cortex and an enlarged ventricle which is consist with the MRI results revealing cortical atrophy and reduced cerebral white matter volume in FARS2-deficient patients. Delayed development of neurite outgrowth followed by neuronal apoptosis was confirmed in Fars2-knockdown mouse primary cultured neurons. Zebrafish, in which fars2 was knocked down, exhibited aberrant motor neuron function including reduced locomotor capacity which well restored the spastic paraplegia phenotype of FARS2-deficient patients. Altered mitochondrial protein synthesis and reduced levels of oxidative phosphorylation complexes were detected in Fars2-deficient samples. And thus, reduced ATP, total NAD levels and mitochondrial membrane potential, together with increased ROS production, revealed mitochondrial dysfunction both in vitro and in vivo. Dctn3 is a potential downstream molecule in responds to Fars2 deficient in neurons, which may provide some evidence for the development of pathogenesis study and therapeutic schedule. Conclusions The Fars2 deficiency genetic models developed in this study cover the typical clinical manifestations in FARS2 patients, and help clarify how neuropathy-associated Fars2 deficiency, by damaging the mitochondrial respiratory chain and impairing mitochondrial function, affects neuronal development and potentiates neuronal cell apoptosis. Supplementary Information The online version contains supplementary material available at 10.1186/s13578-022-00838-y.
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Affiliation(s)
- Xihui Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Fangfang Liu
- Department of Neurobiology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Bowen Li
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Yufeng Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Medical Genetics, Yan'an University, Yan'an, Shaanxi, People's Republic of China
| | - Lijuan Yuan
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Department of General Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Anan Yin
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Department of Plastic surgery, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Qi Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Weihong Hu
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Medical Genetics, Yan'an University, Yan'an, Shaanxi, People's Republic of China
| | - Yan Yao
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Medical Genetics, Yan'an University, Yan'an, Shaanxi, People's Republic of China
| | - Mengjie Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.,Medical Genetics, Yan'an University, Yan'an, Shaanxi, People's Republic of China
| | - YuanMing Wu
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China. .,Shaanxi Provincial Key Laboratory of Clinic Genetics, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.
| | - Kun Chen
- Department of Anatomy, Histology and Embryology and K.K. Leung Brain Research Centre, School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China.
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