title: Early maternal separation leads to down-regulation of cytokine gene expression.
abstract: Exposure to stressors may lead to subsequent alterations in the immune response. The precise mechanisms underlying such vulnerability are poorly understood, but may be hypothesized to include changes in cytokine systems. Maternal separation was used as a model of exposure to early life stressors. Subsequent cytokine gene expression was studied using a cytokine gene expression array. Maternal separation resulted in significant down-regulation of the expression of 6 cytokine genes; chemokine ligand 7, chemokine receptor 4, interleukin 10, interleukin-1beta, interleukin 5 receptor alpha and integrin alpha M. Specific cytokines may be involved in mediating the effects of early adversity on subsequent immunosuppression. Further work is needed to delineate fully the relationship between early adversity, immune alterations, and behavioural changes.
authors.affiliation: Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory 7925, Cape Town, South Africa. jacqueline.dimatelis@uct.ac.za
authors.forename: J J
authors.initials: JJ
authors.lastname: Dimatelis
authors.forename: N S
authors.initials: NS
authors.lastname: Pillay
authors.forename: A K
authors.initials: AK
authors.lastname: Mutyaba
authors.forename: V A
authors.initials: VA
authors.lastname: Russell
authors.forename: W M U
authors.initials: WM
authors.lastname: Daniels
authors.forename: D J
authors.initials: DJ
authors.lastname: Stein
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D001923:Brain Chemistry / Q000235:genetics* / Q000276:immunology*; D016207:Cytokines / Q000235:genetics* / Q000276:immunology; D004195:Disease Models, Animal; D005260:Female; D020869:Gene Expression Profiling / Q000379:methods; D008297:Male; D008426:Maternal Deprivation; D051381:Rats; D017207:Rats, Sprague-Dawley; D013315:Stress, Psychological / Q000235:genetics* / Q000276:immunology* / Q000503:physiopathology
chemical_list: D016207:Cytokines