PMID- 26103138 OWN - NLM STAT- MEDLINE DCOM- 20160526 LR - 20191210 IS - 1095-9564 (Electronic) IS - 1074-7427 (Linking) VI - 123 DP - 2015 Sep TI - Kisspeptin-13 enhances memory and mitigates memory impairment induced by Abeta1-42 in mice novel object and object location recognition tasks. PG - 187-95 LID - S1074-7427(15)00112-4 [pii] LID - 10.1016/j.nlm.2015.05.010 [doi] AB - Kisspeptin (KP), the endogenous ligand of GPR54, is a recently discovered neuropeptide shown to be involved in regulating reproductive system, anxiety-related behavior, locomotion, food intake, and suppression of metastasis across a range of cancers. KP is transcribed within the hippocampus, and GPR54 has been found in the amygdala and hippocampus, suggesting that KP might be involved in mediating learning and memory. However, the role of KP in cognition was largely unclear. Here, we investigated the role of KP-13, one of the endogenous active isoforms, in memory processes, and determined whether KP-13 could mitigate memory impairment induced by Abeta1-42 in mice, using novel object recognition (NOR) and object location recognition (OLR) tasks. Intracerebroventricular (i.c.v.) infusion of KP-13 (2mug) immediately after training not only facilitated memory formation, but also prolonged memory retention in both tasks. The memory-improving effects of KP-13 could be blocked by the GPR54 receptor antagonist, kisspeptin-234 (234), and GnRH receptors antagonist, Cetrorelix, suggesting pharmacological specificity. Then the memory-enhancing effects were also presented after infusion of KP-13 into the hippocampus. Moreover, we found that i.c.v. injection of KP-13 was able to reverse the memory impairment induced by Abeta1-42, which was inhibited by 234. To sum up, the results of our work indicate that KP-13 could facilitate memory formation and prolong memory retention through activation of the GPR54 and GnRH receptors, and suppress memory-impairing effect of Abeta1-42 through activation of the GPR54, suggesting that KP-13 may be a potential drug for enhancing memory and treating Alzheimer's disease. CI - Copyright (c) 2015 Elsevier Inc. All rights reserved. FAU - Jiang, J H AU - Jiang JH AD - Institute of Biochemistry and Molecular Biology, School of Life Sciences, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China. FAU - He, Z AU - He Z AD - Institute of Biochemistry and Molecular Biology, School of Life Sciences, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China. FAU - Peng, Y L AU - Peng YL AD - Institute of Biochemistry and Molecular Biology, School of Life Sciences, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China. FAU - Jin, W D AU - Jin WD AD - Institute of Biochemistry and Molecular Biology, School of Life Sciences, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China. FAU - Wang, Z AU - Wang Z AD - Institute of Biochemistry and Molecular Biology, School of Life Sciences, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China. FAU - Han, R W AU - Han RW AD - Institute of Translational Medicine, Nanchang University, Nanchang 330088, China. FAU - Chang, M AU - Chang M AD - Institute of Biochemistry and Molecular Biology, School of Life Sciences, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China. Electronic address: changmin@lzu.edu.cn. FAU - Wang, R AU - Wang R AD - Institute of Biochemistry and Molecular Biology, School of Life Sciences, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China. Electronic address: wangrui@lzu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150620 PL - United States TA - Neurobiol Learn Mem JT - Neurobiology of learning and memory JID - 9508166 RN - 0 (Amyloid beta-Peptides) RN - 0 (Hormone Antagonists) RN - 0 (Kiss1r protein, mouse) RN - 0 (Kisspeptins) RN - 0 (Peptide Fragments) RN - 0 (Receptors, G-Protein-Coupled) RN - 0 (Receptors, Kisspeptin-1) RN - 0 (Receptors, LHRH) RN - 0 (amyloid beta-protein (1-42)) RN - 0 (kisspeptin-13, mouse) RN - 33515-09-2 (Gonadotropin-Releasing Hormone) RN - OON1HFZ4BA (cetrorelix) SB - IM MH - Amyloid beta-Peptides/*pharmacology MH - Animals MH - Gonadotropin-Releasing Hormone/analogs & derivatives/pharmacology MH - Hippocampus/drug effects/*metabolism MH - Hormone Antagonists/pharmacology MH - Infusions, Intraventricular MH - Kisspeptins/administration & dosage/*pharmacology MH - Male MH - Memory Disorders/chemically induced/*drug therapy MH - Mice MH - Peptide Fragments/*pharmacology MH - Receptors, G-Protein-Coupled/antagonists & inhibitors/*metabolism MH - Receptors, Kisspeptin-1 MH - Receptors, LHRH/antagonists & inhibitors/*metabolism MH - Recognition, Psychology/drug effects MH - Retention, Psychology/drug effects MH - Spatial Memory/*drug effects OTO - NOTNLM OT - Abeta(1-42) OT - GPR54 OT - GnRH OT - Hippocampus OT - Kisspeptin-13 OT - Recognition memory EDAT- 2015/06/24 06:00 MHDA- 2016/05/27 06:00 CRDT- 2015/06/24 06:00 PHST- 2015/02/01 00:00 [received] PHST- 2015/04/16 00:00 [revised] PHST- 2015/05/26 00:00 [accepted] PHST- 2015/06/24 06:00 [entrez] PHST- 2015/06/24 06:00 [pubmed] PHST- 2016/05/27 06:00 [medline] AID - S1074-7427(15)00112-4 [pii] AID - 10.1016/j.nlm.2015.05.010 [doi] PST - ppublish SO - Neurobiol Learn Mem. 2015 Sep;123:187-95. doi: 10.1016/j.nlm.2015.05.010. Epub 2015 Jun 20.