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Maternal stress induced autophagy dysfunction and immune activation in the hippocampus of adolescence rat pups

Maternal stress (MS) has long-term effects on fetal brain development and consequently increases the risk of neuropsychiatric diseases in the offspring, however, the mechanism that links between early life stress and subsequent neuropsychiatric diseases is still not clear. It is well known that both...

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Published in:Journal of chemical neuroanatomy 2022-04, Vol.121, p.102085-102085, Article 102085
Main Authors: Surakul, Pornprom, Chutabhakdikul, Nuanchan, Vanichviriyakit, Rapeepun, Promthep, Kornkanok, Thangnipon, Wipawan
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cited_by cdi_FETCH-LOGICAL-c368t-1132bada080c4a0fd1054bd44c24ab146ea89f963a6a3d8fa9fa8b4ad48b70b93
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container_title Journal of chemical neuroanatomy
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creator Surakul, Pornprom
Chutabhakdikul, Nuanchan
Vanichviriyakit, Rapeepun
Promthep, Kornkanok
Thangnipon, Wipawan
description Maternal stress (MS) has long-term effects on fetal brain development and consequently increases the risk of neuropsychiatric diseases in the offspring, however, the mechanism that links between early life stress and subsequent neuropsychiatric diseases is still not clear. It is well known that both neuroinflammation and autophagy dysfunction contributes to the pathology of psychiatric disorders. We hypothesized that MS might alter autophagy function and activate the neuroimmune response in the pup’s brain. To test this hypothesis, we investigated the effects of MS on the expression of the autophagy biomarker and neuroimmune response in the hippocampus of rat pups. Results revealed that MS-induced a long-term decrease of LC3B-II throughout the postnatal periods, together with an increase of IL-6 and IL-10 in the hippocampus of rat pups during adolescence. These changes lasted at least until adulthood. Results from the In vitro studies showed that a partially toxic dose of corticosterone (CORT) induced a significant decrease of LC3B-II, together with an increase of IL-6 and IL-10, in the SH-SY5Y cells. Moreover, suppression of autophagy by mycophenolic acid (MPA) leads to an increased IL-6 and IL-10 expression in the CORT-treated SH-SY5Y cells. Findings suggested that CORT decreased autophagy dysfunction could activate neuroimmune response in the SH-SY5Y cells. Results from this study provides initial evidence for the relationship between stress hormone, autophagy dysfunction, and neuroimmune activation, which may be the linking mechanism between early-life stress and subsequent neuropsychiatric disorders. •Maternal stress decreased autophagy function in the hippocampus of neonatal rat pups at least until adulthood.•Maternal stress activates the neuroimmune response in the hippocampus of rat pups from adolescence to adulthood.•Suppression of autophagy activate immune response in the CORT-treated SH-SY5Y cells.•Autophagy dysfunction may be the linking mechanism between early-life stress and subsequent neuropsychiatric disorders.
doi_str_mv 10.1016/j.jchemneu.2022.102085
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1873-6300
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source Elsevier
subjects Adolescence
Adult
Animals
Autophagy
Corticosterone
Hippocampus
Hippocampus - metabolism
Humans
Interleukin-10 - metabolism
Interleukin-6 - metabolism
Maternal stress
Neuroimmune activation
Rats
title Maternal stress induced autophagy dysfunction and immune activation in the hippocampus of adolescence rat pups
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