Cited by 64Stress Responses and CortisolBirth, Development, and HealthMaternal Mental Health During Pregnancy and Postpartum

Prenatal stress changes the glycoprotein GPM6A gene expression and induces epigenetic changes in rat offspring brain

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Monteleone, Melisa C, Adrover, Ezequiela, Pallarés, María Eugenia, Antonelli, Marta C, Frasch, Alberto C, Brocco, Marcela A·2014·Epigenetics

Abstract

Prenatal stress (PS) exerts strong impact on fetal brain development and on adult offspring brain functions. Previous work demonstrated that chronic stress alters the mRNA expression of GPM6A, a neuronal glycoprotein involved in filopodium extension. In this work, we analyzed the effect of PS on gpm6a expression and the epigenetic mechanisms involved. Pregnant Wistar rats received restraint stress during the last week of gestation. Male offspring were sacrificed on postnatal days 28 and 60. Hippocampus and prefrontal cortex samples were analyzed for gene expression (qPCR for mRNAs and microRNAs), methylation status (bisulfite conversion) and protein levels. Hippocampal neurons in culture were used to analyze microRNA overexpression effects. Prenatal stress induced changes in gpm6a levels in both tissues and at both ages analyzed, indicating a persistent effect. Two CpG islands in the gpm6a gene were identified. Variations in the methylation pattern at three specific CpGs were found in hippocampus, but not in PFC samples from PS offspring. microRNAs predicted to target gpm6a were identified in silico. qPCR measurements showed that PS modified the expression of several microRNAs in both tissues, being microRNA-133b the most significantly altered. Further studies overexpressing this microRNA in neuronal cultures showed a reduction in gmp6a mRNA and protein level. Moreover filopodium density was also reduced, suggesting that GPM6A function was affected. Gestational stress affected gpm6a gene expression in offspring likely through changes in methylation status and in posttranscriptional regulation by microRNAs. Thus, our findings propose gpm6a as a novel target for epigenetic regulation during prenatal stress.

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  • In adult male rats born to dams with gestational psychosocial stress, miR-133b levels are increased in the hippocampus and decreased in the PFC.

    “In adult male rats born to dams with gestational psychosocial stress, miR-133b was found to have increased levels in the hippocampus (HPC) and decreased levels in the PFC [103].”

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Authors
Monteleone, M. C., Adrover, E., Pallarés, M. E., Antonelli, M. C., Frasch, A. C., & Brocco, M. A.
Affiliations
  • Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
  • Universidad de Buenos Aires (AR)
Corresponding author
Brocco, Marcela A
Venue
Epigenetics
Published
2013-08-19
Volume
9
Issue
1
Pages
152-160
ISSN
  • 1559-2294 (ISSN-L)
  • 1559-2308
OpenAlex
W2036959324
Cited by
64
References
46
Citations by year
2026: 2 · 2025: 4 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 7 · 2020: 3 · 2019: 3 · 2018: 9 · 2017: 8 · 2016: 5 · 2015: 6 · 2014: 6
FWCI
2.58
Type
journal article
Language
en
Open access
Locations
  • Epigenetics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • CONICET Digital (CONICET) (submittedVersion, cc-by-nc-sa)
Funders
  • Consejo Nacional de Investigaciones Científicas y Técnicas
  • International Society for Neurochemistry
  • Universidad Nacional de San Martín
  • Agencia Nacional de Promoción Científica y Tecnológica
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • 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
prenatal stress, GPM6A, gene expression, DNA methylation, epigenetic regulation, microRNA, microRNA-133b, hippocampus, prefrontal cortex, offspring neurodevelopment, restraint stress, CpG islands, post-transcriptional regulation
MeSH terms
Animals, Brain, Cells, Cultured, Female, Glycoproteins, Hippocampus, Male, Membrane Glycoproteins, Methylation, Nerve Tissue Proteins, Neurons, Pregnancy, Prenatal Exposure Delayed Effects, Stress, Psychological, Rats, Wistar, Prefrontal Cortex, CpG Islands, MicroRNAs, Epigenesis, Genetic

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