[en] The experience of adversity in childhood has been associated with poor health outcomes in adulthood. In search of the biological mechanisms underlying these effects, research so far focused on alterations of DNA methylation or shifts in transcriptomic profiles. The level of protein, however, has been largely neglected. We utilized mass spectrometry to investigate the proteome of CD14(+) monocytes in healthy adults reporting childhood adversity and a control group before and after psychosocial stress exposure. Particular proteins involved in (i) immune processes, such as neutrophil-related proteins, (ii) protein metabolism, or (iii) proteins related to mitochondrial biology, such as those involved in energy production processes, were upregulated in participants reporting exposure to adversity in childhood. This functional triad was further corroborated by protein interaction- and co-expression analyses, was independent of stress exposure, i.e. observed at both pre- and post-stress time points, and became evident especially in females. In line with the mitochondrial allostatic load model, our findings provide evidence for the long-term effects of childhood adversity on mitochondrial biology.
Disciplines :
Neurosciences & behavior
Author, co-author :
Zang, Johannes C. S.
May, Caroline
Hellwig, Birte
Moser, Dirk
Hengstler, Jan G.
Cole, Steve
Heinrichs, Markus
Rahnenführer, Jörg
Marcus, Katrin
Kumsta, Robert ; University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS)
External co-authors :
yes
Language :
English
Title :
Proteome analysis of monocytes implicates altered mitochondrial biology in adults reporting adverse childhood experiences.
Publication date :
2023
Journal title :
Translational Psychiatry
ISSN :
2158-3188
Publisher :
Springer Nature, New-York, United States - New York
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