PMID- 28664925 OWN - NLM STAT- MEDLINE DCOM- 20180516 LR - 20181113 IS - 1740-634X (Electronic) IS - 0893-133X (Print) IS - 0893-133X (Linking) VI - 42 IP - 11 DP - 2017 Oct TI - Evidence for Immune Activation and Resistance to Glucocorticoids Following Childhood Maltreatment in Adolescents Without Psychopathology. PG - 2272-2282 LID - 10.1038/npp.2017.137 [doi] AB - Early-life stress (ELS) increases the risk for psychopathology. Immune and endocrine changes have been reported in adults and are associated with maladaptation of stress-responsive systems. Here we investigated the effects of ELS on endocrine and immune pathways in adolescents without psychopathology. Thirty adolescents with a history of childhood maltreatment and 27 adolescents without ELS history were recruited. Blood and hair samples were obtained from all participants. Lymphocytes were isolated and stimulated in vitro. Flow cytometry was used to evaluate lymphocyte subsets, Th1/Th2/Th17 cytokines, mitogen-activated protein kinase (MAPK), and nuclear factor kappa B (NF-kappaB) signaling pathways, as well as lymphocyte sensitivity to dexamethasone. Brain-derived neurotrophic factor (BDNF) and hair cortisol were assessed with enzyme-linked immunosorbent assays (ELISAs). Adolescents with a history of ELS had increased percentages of T-cell activation markers (CD3+CD4+CD25+ and CD3+CD69+) and senescent T cells (CD8+CD28- and CD4+CD28-), as well as decreased percentages of NK (CD3-CD56+) and NK T cells (CD3+CD56+). Following stimulation, lymphocytes of ELS+ adolescents produced significantly more IL-2, IL-4, IFN-gamma, and IL-17 and engaged more MAPK ERK and NF-kappaB signaling. ELS was associated with increased hair cortisol levels in parallel with increased lymphocyte resistance to dexamethasone and low plasma BDNF levels. These data provide the first indication of the presence of immune activation and pro-inflammatory profiles in healthy adolescents exposed to ELS, which could contribute to increased vulnerability of trauma-related psychopathology later in life. The underlying mechanisms of this impairment may include the enhanced activation of both MAPK and NF-kappaB signaling in parallel to partial resistance to glucocorticoids. FAU - do Prado, Carine Hartmann AU - do Prado CH AD - Laboratory of Immunosenescence, Institute of Biomedical Research, Pontifical Catholic University of the Rio Grande do Sul (PUCRS), Porto Alegre, Brazil. FAU - Grassi-Oliveira, Rodrigo AU - Grassi-Oliveira R AUID- ORCID: 0000-0001-9911-5921 AD - Laboratory of Immunosenescence, Institute of Biomedical Research, Pontifical Catholic University of the Rio Grande do Sul (PUCRS), Porto Alegre, Brazil. AD - Developmental Cognitive Neuroscience Lab (DCNL), Brain Institute of Rio Grande do Sul (InsCer), PUCRS, Porto Alegre, Brazil. FAU - Daruy-Filho, Ledo AU - Daruy-Filho L AD - Developmental Cognitive Neuroscience Lab (DCNL), Brain Institute of Rio Grande do Sul (InsCer), PUCRS, Porto Alegre, Brazil. FAU - Wieck, Andrea AU - Wieck A AD - Laboratory of Immunosenescence, Institute of Biomedical Research, Pontifical Catholic University of the Rio Grande do Sul (PUCRS), Porto Alegre, Brazil. FAU - Bauer, Moises Evandro AU - Bauer ME AD - Laboratory of Immunosenescence, Institute of Biomedical Research, Pontifical Catholic University of the Rio Grande do Sul (PUCRS), Porto Alegre, Brazil. AD - Faculty of Biosciences, PUCRS, Porto Alegre, Brazil. LA - eng PT - Journal Article DEP - 20170630 PL - England TA - Neuropsychopharmacology JT - Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology JID - 8904907 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cytokines) RN - 0 (Glucocorticoids) RN - 0 (NF-kappa B) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - WI4X0X7BPJ (Hydrocortisone) SB - IM MH - Adolescent MH - Brain-Derived Neurotrophic Factor/metabolism MH - Child Abuse/psychology/*rehabilitation MH - Cytokines/*metabolism MH - Female MH - Glucocorticoids/*metabolism MH - Hair/metabolism MH - Humans MH - Hydrocortisone/metabolism MH - Lymphocytes/*metabolism MH - Male MH - Mitogen-Activated Protein Kinases/metabolism MH - NF-kappa B/metabolism MH - Signal Transduction/genetics/*physiology PMC - PMC5603807 EDAT- 2017/07/01 06:00 MHDA- 2018/05/17 06:00 PMCR- 2018/10/01 CRDT- 2017/07/01 06:00 PHST- 2016/10/24 00:00 [received] PHST- 2017/06/22 00:00 [revised] PHST- 2017/06/24 00:00 [accepted] PHST- 2017/07/01 06:00 [pubmed] PHST- 2018/05/17 06:00 [medline] PHST- 2017/07/01 06:00 [entrez] PHST- 2018/10/01 00:00 [pmc-release] AID - npp2017137 [pii] AID - 10.1038/npp.2017.137 [doi] PST - ppublish SO - Neuropsychopharmacology. 2017 Oct;42(11):2272-2282. doi: 10.1038/npp.2017.137. Epub 2017 Jun 30.