Imipramine affects the expression of proteins involved in oxidative stress and immunity in rat primary glial cell culture

ABSTRACT: Glial cells (microglia and astrocytes) have recently became appreciated as an important target for antidepressant drugs. Here we report on the results of comprehensive proteomic analysis of the alteration in protein profile of rat primary mixed glial culture exposed to imipramine. Two-dimensional differential in gel electrophoresis method allowed to identify 62 proteins regulated by imipramine hydrochloride. Functional analysis revealed the impact of imipramine on the level of proteins involved in oxidative stress. Imipramine upregulated proteins related to glycolysis but downregulated many mitochondrial proteins also enzymes of oxidative phosphorylation. Moreover, imipramine influenced the proteins engaged in phagocytosis and cell migration. Alteration in the level of large number of structural and plasma membrane associated proteins evidenced a widespread cytoskeleton and membrane rearrangement. Imipramine triggered decrease of mitochondrial membrane potential, impairment of protein synthesis and downregulation of chaperon proteins, what could be related to increased apoptosis. Many imipramine regulated proteins, among them chaperons, cathepsins and annexins are evidenced to be engaged in immunity response. Overall these experimental findings suggest that in response to imipramine, glial cells (mainly microglia) undergo a transition toward more quiescent, metabolically less demanding phenotype.

INSTRUMENT(S): micrOTOF-Q II

ORGANISM(S): Rattus Norvegicus (rat)

TISSUE(S): Brain

SUBMITTER: Urszula Jankowska  

LAB HEAD: Sylwia Kędracka-Krok

PROVIDER: PXD007977 | Pride | 2018-05-17

REPOSITORIES: Pride