Cited by 36Stress Responses and CortisolMaternal Mental Health During Pregnancy and PostpartumTryptophan and brain disorders

H3K9 acetylation of Tph2 involved in depression-like behavior in Male, but not female, juvenile offspring rat induced by prenatal stress

Dang, Shaokang, Lu, Yong, Su, Qian, Lin, Tianwei, Zhang, Xiaoxiao, Zhang, Huiping, Zhang, Junli, Zhang, Lin +2 more·2018·Neuroscience

Abstract

Increasing evidence has shown that prenatal stress (PS) could cause depression-like behavior in the offspring, which is sex-specific. However, the underlying mechanisms remain to be elucidated. This study is to investigate the involvement of tryptophan hydroxylase 2 (Tph2) H3K9 acetylation (H3K9ac) modification on PS-induced depression-like behavior in juvenile offspring rats (JOR). PS models were established, with or without trichostatin A (TSA) treatment. Animal behavior was assessed by the sucrose preference test (SPT) and forced swimming test (FST). The mRNA and protein expression levels of TPH2 in the dorsal raphenucleus (DRN), hippocampus, and prefrontal cortex were detected with quantitative real-time PCR and Western blot analysis, respectively. The Tph2 H3K9ac levels in the hippocampus were also analyzed. SPT and FST showed significantly reduced sucrose preference and significantly prolonged immobility in PS-induced male juvenile offspring rats (MJOR). Moreover, the mRNA and protein expression levels of TPH2 in the DRN and hippocampus were significantly declined, while the hippocampal Tph2 H3K9ac levels were significantly declined in the PS-induced MJOR. Furthermore, the PS-induced effects in MJOR could be reversed by the microinjection of TSA. However, no significant effects were observed for the female juvenile offspring rats (FJORs). In conclusion, our results showed that the Tph2 H3K9ac modification is only involved in PS-induced depression-like behavior in MJOR, in a sex-specific manner. These findings might contribute to the understanding of the disease pathogenesis and clinical treatment in future.

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Crossref · 10.1016/j.neuroscience.2018.03.043

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Authors
Dang, S., Lu, Y., Su, Q., Lin, T., Zhang, X., Zhang, H., Zhang, J., Zhang, L., Zhu, Z., & Li, H.
Affiliations
  • First Affiliated Hospital of Xi'an Jiaotong University (CN)
  • Xi'an Jiaotong University (CN)
  • Northwest University (CN)
Corresponding author
  • Zhu, Zhongliang
  • Li, Hui
Venue
Neuroscience
Publisher
Elsevier BV
Published
2018-06
Volume
381
Pages
138-148
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2795837827
Cited by
30
References
55
Citations by year
2026: 1 · 2025: 3 · 2024: 8 · 2023: 4 · 2022: 2 · 2021: 4 · 2020: 5 · 2019: 1 · 2018: 2
FWCI
1.73
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81671342, 30970952, 18110059, 81271497)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Maternal Mental Health During Pregnancy and Postpartum
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
prenatal stress, depression-like behavior, tryptophan hydroxylase 2, H3K9 acetylation, histone modifications, sex differences, trichostatin A, dorsal raphe nucleus, hippocampus, prefrontal cortex, epigenetic regulation
MeSH terms
Acetylation, Animals, Behavior, Animal, Brain, Depression, Female, Histones, Male, Pregnancy, Prenatal Exposure Delayed Effects, Sex Characteristics, Stress, Psychological, Tryptophan Hydroxylase, Rats, Sprague-Dawley, Gene Expression Regulation, Developmental, Rats

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