Cited by 250Genetics and Neurodevelopmental DisordersBirth, Development, and HealthMaternal Mental Health During Pregnancy and Postpartum

The placenta and neurodevelopment: sex differences in prenatal vulnerability

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Bale, Tracy L.·2016·Dialogues in Clinical Neuroscience

Abstract

Prenatal insults, such as maternal stress, are associated with an increased neurodevelopmental disease risk and impact males significantly more than females, including increased rates of autism, mental retardation, stuttering, dyslexia, and attention deficit/hyperactivity disorder (ADHD). Sex differences in the placenta, which begin with sex chromosomes, are likely to produce sex-specific transplacental signals to the developing brain. Our studies and others have identified X-linked genes that are expressed at higher levels in the female placenta. Through a genome-wide screen after maternal stress in mice, we identified the X-linked gene O-linked N-acetylglucosamine transferase (OGT) and demonstrated its causality in neurodevelopmental programming producing a male-specific stress phenotype. Elucidating the sex-specific molecular mechanisms involved in transplacental signals that impact brain development is key to understanding the sex bias in neurodevelopmental disorders and is expected to yield novel insight into disease risk and resilience.

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  • In many studies, male offspring appear most strongly affected and often present with a dysmasculinized phenotype.

    “In many studies, male offspring appear to be the most strongly affected. Interestingly, they often present with what is known as a dysmasculinized phenotype (i.e., with behaviors and gene expression patterns most commonly seen in females) (Bale 2016).”
  • In a mouse model based on X-linked OGT, male placentas with lower OGT are poised for epigenetic alterations that produce robust transcriptional responses to maternal prenatal stress, resulting in increased stress sensitivity as adults.

    “In one elegant model in mice based on the X-linked gene OGT (O-linked N-acetylglucosamine transferase), male placentas with typically lower levels of OGT are poised for epigenetic alterations that appear to produce robust transcriptional responses to maternal prenatal stress that result in increased stress sensitivity as adults (Bale 2016).”

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Research works printed but not linked: 7

  1. [11]Sandman CA. Glynn LM. Davis EP. Is there a viability-vulnerability tradeoff? Sex differences in fetal programming. J Psychosom Res. 2013 75 4 327 335 24119938 PMC3796732
  2. [31]Gabory A. Roseboom TJ. Moore T. Moore LG. Junien C. Placental contribution to the origins of sexual dimorphism in health and diseases: sex chromosomes and epigenetics. Biol Sex Differ. 2013 4 1 5 23514128 PMC3618244
  3. [34]Howerton CL. Bale TL. Targeted placental deletion of OGT recapitulates the prenatal stress phenotype including hypothalamic mitochondrial dysfunction. Proc Natl Acad Sci U S A. 2014 111 26 9639 9644 24979775 PMC4084439
  4. [35]Howerton CL. Morgan CP. Fischer DB. Bale TL. 0-GlcNAc transferase (OGT) as a placental biomarker of maternal stress and reprogramming of CNS gene transcription in development. Proc Natl Acad Sci USA. 2013 110 13 5169 5174 23487789 PMC3612602
  5. [48]Mao J. Zhang X. Sieli PT. Falduto MT. Torres KE. Rosenfeld CS. Contrasting effects of different maternal diets on sexually dimorphic gene expression in the murine placenta. Proc Natl Acad Sci U S A. 2010 107 12 5557 5562 20212133 PMC2851754
  6. [52]Nugent BM. Bale TL. The omniscient placenta: metabolic and epigenetic regulation of fetal programming. Front Neuroendocrinol. 2015 39 28 37 26368654 PMC4681645
  7. [53]Bronson SL. Bale TL. The placenta as a mediator of stress effects on neurodevelopmental reprogramming. Neuropsychopharmacology. 2016 41 1 207 218 26250599 PMC4677129

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Authors
Bale, T. L.
Affiliations
University of Pennsylvania (US)
Corresponding author
Bale, Tracy L.
Venue
Dialogues in Clinical Neuroscience
Published
2016-12-31
Volume
18
Issue
4
Pages
459-464
ISSN
  • 1294-8322 (ISSN-L)
  • 1958-5969
OpenAlex
W2988356887
Cited by
236
References
86
Citations by year
2026: 23 · 2025: 29 · 2024: 23 · 2023: 35 · 2022: 30 · 2021: 32 · 2020: 20 · 2019: 17 · 2018: 20 · 2017: 7
FWCI
11.85
Type
journal article
Language
en
Open access
Locations
  • Dialogues in Clinical Neuroscience (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01mh091258-05)
  • National Institute of Mental Health (P50MH099910, R37MH108286, R33MH104184, R01 MH-091258, R01MH087597)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Maternal Mental Health During Pregnancy and Postpartum
Keywords
placenta, sex differences, brain development, prenatal stress, maternal stress, neurodevelopmental disorders, autism spectrum disorder, attention deficit hyperactivity disorder, X-linked genes, O-GlcNAc transferase, sex bias
MeSH terms
Animals, Female, Humans, Male, Placenta, Pregnancy, Prenatal Exposure Delayed Effects, Sex Characteristics, Stress, Physiological, Stress, Psychological, Neurodevelopmental Disorders

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