PMID- 29157796 OWN - NLM STAT- MEDLINE DCOM- 20181211 LR - 20181211 IS - 1873-7862 (Electronic) IS - 0924-977X (Linking) VI - 28 IP - 1 DP - 2018 Jan TI - Neuropeptide S in the basolateral amygdala mediates an adaptive behavioral stress response in a rat model of posttraumatic stress disorder by increasing the expression of BDNF and the neuropeptide YY1 receptor. PG - 159-170 LID - S0924-977X(17)31997-1 [pii] LID - 10.1016/j.euroneuro.2017.11.006 [doi] AB - Neuropeptide S (NPS) is a regulatory peptide that has anxiolytic and arousal-promoting effects in rodents. We used an animal model of posttraumatic stress disorder (PTSD) to assess long-term behavioral effects of a single dose of NPS, microinjected into the basolateral amygdala (BLA) 1h following exposure to predator-scent stress (PSS). To elucidate the molecular mechanism by which NPS attenuates behavioral stress responses, expression levels of neuropeptide Y (NPY), NPY-Y1 receptor (NPY-Y1R), and brain-derived neurotrophic factor (BDNF) were evaluated in the hippocampus. The behavioral and molecular effects of NPS receptor antagonist (NPS-RA), NPY-Y1R antagonist (NPY-Y1RA), or both administered centrally were evaluated in the same manner. Circulating corticosterone levels were measured at different time points following PSS-exposure. Immediate post-exposure treatment with NPS had a marked protective effect; BLA microinfusion of NPS completely abolished the extreme behavioral response to PSS, restored the decreased expression of BDNF and, unexpectedly, PY-Y1R, but didn't affect the decreased expression of NPY. BLA microinfusion of both NPY-Y1RA and NPS-RA together had an additive effect, which completely prevented the anxiolytic effects of NPS in rats exposed to PSS and disrupted the expression of NPY-Y1R in the hippocampus following NPS infusion. It may therefore be hypothesized that NPS acts, directly or indirectly, on both the NPY-Y1R and NPS receptors and that the cross-talk between NPS and NPY-Y1R may be necessary for the anxiolytic effects of NPS post-exposure. The NPS system might thus contribute to a potential endogenous mechanism underlying the shift towards adaptive behavioral response and thereby might be relevant as a pharmacological target for attenuating stress-related sequelae. CI - Copyright (c) 2017 Elsevier B.V. and ECNP. All rights reserved. FAU - Cohen, Hagit AU - Cohen H AD - Ministry of Health Beer-Sheva Mental Health Center, Anxiety and Stress Research Unit, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 4600, Beer-Sheva 84170, Israel. Electronic address: hagitc@bgu.ac.il. FAU - Vainer, Ella AU - Vainer E AD - Ministry of Health Beer-Sheva Mental Health Center, Anxiety and Stress Research Unit, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 4600, Beer-Sheva 84170, Israel. FAU - Zeev, Kaplan AU - Zeev K AD - Ministry of Health Beer-Sheva Mental Health Center, Anxiety and Stress Research Unit, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 4600, Beer-Sheva 84170, Israel. FAU - Zohar, Joseph AU - Zohar J AD - Division of Psychiatry, The State of Israel Ministry of Health, The Chaim Sheba Medical Center, Ramat-Gan, Israel, Sackler Medical School, Tel-Aviv University, Israel. FAU - Mathe, Aleksander A AU - Mathe AA AD - Karolinska Institutet, Department of Clinical Neuroscience, Karolinska Institutet, Sankt Gorans Hospital, SE-11281 Stockholm, Sweden. Electronic address: aleksander.mathe@ki.se. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20171120 PL - Netherlands TA - Eur Neuropsychopharmacol JT - European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology JID - 9111390 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neuropeptides) RN - 0 (Receptors, Neuropeptide) RN - 0 (Receptors, Neuropeptide Y) RN - 0 (neuropeptide S, rat) RN - 0 (neuropeptide Y-Y1 receptor) RN - 7171WSG8A2 (BDNF protein, human) RN - W980KJ009P (Corticosterone) SB - IM MH - Adaptation, Psychological/drug effects/*physiology MH - Animals MH - Basolateral Nuclear Complex/drug effects/*metabolism/pathology MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Corticosterone/blood MH - Disease Models, Animal MH - Hippocampus/drug effects/metabolism/pathology MH - Male MH - Neuropeptides/*metabolism MH - Rats, Sprague-Dawley MH - Receptors, Neuropeptide/antagonists & inhibitors/metabolism MH - Receptors, Neuropeptide Y/antagonists & inhibitors/*metabolism MH - Stress Disorders, Post-Traumatic/*metabolism/pathology/psychology MH - Stress, Psychological/metabolism OTO - NOTNLM OT - Animal model OT - Brain-derived neurotrophic factor OT - Neuropeptide S OT - Neuropeptide Y OT - Neuropeptide Y-Y1 receptor OT - Post-traumatic Stress Disorder (PTSD) OT - Resilience OT - Vulnerability EDAT- 2017/11/22 06:00 MHDA- 2018/12/12 06:00 CRDT- 2017/11/22 06:00 PHST- 2017/07/31 00:00 [received] PHST- 2017/10/17 00:00 [revised] PHST- 2017/11/03 00:00 [accepted] PHST- 2017/11/22 06:00 [pubmed] PHST- 2018/12/12 06:00 [medline] PHST- 2017/11/22 06:00 [entrez] AID - S0924-977X(17)31997-1 [pii] AID - 10.1016/j.euroneuro.2017.11.006 [doi] PST - ppublish SO - Eur Neuropsychopharmacol. 2018 Jan;28(1):159-170. doi: 10.1016/j.euroneuro.2017.11.006. Epub 2017 Nov 20.