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Circuit-wide proteomics profiling reveals brain region-specific protein signatures in the male WKY rats with endogenous depression.
- Source :
-
Journal of Affective Disorders . Jan2023, Vol. 320, p98-107. 10p. - Publication Year :
- 2023
-
Abstract
- <bold>Background: </bold>Although the Wistar Kyoto (WKY) rat has been consistently recognized as an animal model with endogenous depression, the exact molecular mechanisms underlying its genetic susceptibility to depression remain undetermined.<bold>Methods: </bold>Compared with the Wistar rats, the depression-like behaviors of the male WKY ones were evaluated by both the sucrose preference test and forced swimming test. Golgi staining analysis was conducted to access the dendritic morphology. TMT-labelled quantitative proteomics analyses were respectively performed in the medial prefrontal cortex (mPFC), nucleus accumbens (NAc), and hippocampus (Hip), followed by KEGG enrichment-based clustering analysis, Venn diagram analysis, and Pearson correlation analysis.<bold>Results: </bold>The WKY strain showed significant differences in both the depression-like behaviors and synaptic plasticity. Moreover, the WKY model displayed markedly distinct differentially-expressed protein (DEP) profiles, with minor differences between the WKY subgroups. A cerebral regional commonality and specificity were evident in the signaling pathways enriched in the WKY model, and a total of 15 brain region-specific DEPs were identified to closely correlate with the depression-like phenotypes (in the mPFC: Lrrc8d, Dcun1d2, and Mtnd5; in the NAc: Ccdc154, Sec14l2, Kif2a, LOC680322, Me1, Mknk1, and Ret7; in the Hip: Sec14l2, Serpinf2, LOC103694855, Fam13c, and Loxl1). Data were available via ProteomeXchange with identifier PXD029079.<bold>Limitations: </bold>Female WKY rats are not included, and the roles of these candidate DEPs in depression remain further elucidation.<bold>Conclusion: </bold>The present study further evidences the brain region-specific protein signatures in the male WKY model with endogenous depression, providing novel insights into the pathogenesis of depression in males. [ABSTRACT FROM AUTHOR]
- Subjects :
- *BIOLOGICAL models
*ANIMALS
*RATS
*PROTEOMICS
*MENTAL depression
BRAIN metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 01650327
- Volume :
- 320
- Database :
- Academic Search Index
- Journal :
- Journal of Affective Disorders
- Publication Type :
- Academic Journal
- Accession number :
- 161011634
- Full Text :
- https://doi.org/10.1016/j.jad.2022.09.086