Cited by 33Stress Responses and CortisolBirth, Development, and HealthMaternal Mental Health During Pregnancy and Postpartum

Programming changes of hippocampal miR-134-5p/SOX2 signal mediate the susceptibility to depression in prenatal dexamethasone-exposed female offspring

Jiang, Tao, Hu, Shuwei, Dai, Shiyun, Yi, Yiwen, Wang, Tingting, Li, Xufeng, Luo, Mingcui, Li, Ke +3 more·2022·Cell Biology and Toxicology

Abstract

Depression is a neuropsychiatric disorder and has intrauterine developmental origins. This study aimed to confirm the depression susceptibility in offspring rats induced by prenatal dexamethasone exposure (PDE) and to further explore the intrauterine programming mechanism. Wistar rats were injected with dexamethasone (0.2 mg/kg·d) subcutaneously during the gestational days 9-20 and part of the offspring was given chronic stress at postnatal weeks 10-12. Behavioral results showed that the adult PDE female offspring was susceptible to depression, accompanied by increased hippocampal miR-134-5p expression and decreased sex-determining region Y-box 2 (SOX2) expression, as well as disorders of neural progenitor cells proliferation and hippocampal neurogenesis. The PDE female fetal rats presented consistent changes with the adult offspring, accompanied by the upregulation of glucocorticoid receptor (GR) expression and decreased sirtuin 1 (SIRT1) expression. We further found that the H3K9ac level of the miR-134-5p promoter was significantly increased in the PDE fetal hippocampus, as well as in adult offspring before and after chronic stress. In vitro, the changes of GR/SIRT1/miR-134-5p/SOX2 signal by dexamethasone were consistent with in vivo experiments, which could be reversed by GR receptor antagonist, SIRT1 agonist, and miR-134-5p inhibitor. This study confirmed that PDE led to an increased expression level as well as H3K9ac level of miR-134-5p by activating the GR/SIRT1 pathway in the fetal hippocampus and then inhibited the SOX2 expression. The programming effect mediated by the abnormal epigenetic modification could last from intrauterine to adulthood, which constitutes the intrauterine programming mechanism leading to hippocampal neurogenesis disorders and depression susceptibility in female offspring. Intrauterine programming mechanism for the increased depressive susceptibility in adult female offspring by prenatal dexamethasone exposure (PDE). GR, glucocorticoid receptor; SIRT1, sirtuin 1; SOX2, sex-determining region Y-box 2; NPCs, neuroprogenitor cells; H3K9ac, histone 3 lysine 9 acetylation; GRE, glucocorticoid response element.

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Crossref · 10.1007/s10565-021-09590-4

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Authors
Jiang, T., Hu, S., Dai, S., Yi, Y., Wang, T., Li, X., Luo, M., Li, K., Chen, L., Wang, H., & Xu, D.
Affiliations
  • Wuhan University (CN)
  • Zhongnan Hospital of Wuhan University (CN)
Corresponding author
Xu, Dan
Venue
Cell Biology and Toxicology
Published
2021-02-22
Volume
38
Issue
1
Pages
69-86
ISSN
  • 0742-2091 (ISSN-L)
  • 1573-6822
OpenAlex
W3133091759
Cited by
33
References
72
Citations by year
2026: 1 · 2025: 3 · 2024: 9 · 2023: 10 · 2022: 3 · 2021: 7
FWCI
4.64
Type
journal article
Language
en
Open access
closed
Locations
  • Cell Biology and Toxicology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Health and Family Planning Commission of Hubei Province (WJ2019Q038)
  • National Natural Science Foundation of China (81973405, 81671472, 81673524)
  • Medical Science Advancement Program (Basic Medical Sciences) of Wuhan University (TFJC2018001)
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
depression vulnerability, prenatal dexamethasone exposure, intrauterine programming, glucocorticoid receptor, SIRT1, miR-134-5p, SOX2, hippocampal neurogenesis, neural progenitor cells, chronic stress, epigenetic modifications, H3K9ac, female offspring, developmental origins of health and disease, glucocorticoid response
MeSH terms
Adult, Animals, Depression, Dexamethasone, Female, Hippocampus, Humans, Pregnancy, Prenatal Exposure Delayed Effects, Receptors, Glucocorticoid, Rats, Wistar, MicroRNAs, Rats, SOXB1 Transcription Factors, Sirtuin 1

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