PMID- 24468471 OWN - NLM STAT- MEDLINE DCOM- 20141125 LR - 20171116 IS - 1558-1497 (Electronic) IS - 0197-4580 (Linking) VI - 35 IP - 6 DP - 2014 Jun TI - Pinocembrin improves cognition and protects the neurovascular unit in Alzheimer related deficits. PG - 1275-85 LID - S0197-4580(13)00673-8 [pii] LID - 10.1016/j.neurobiolaging.2013.12.031 [doi] AB - Amyloid-beta (Abeta) peptides accumulate in the brain and initiate a cascade of pathologic events in Alzheimer's disease. The receptor for advanced glycation end products (RAGE) has been implicated to mediate Abeta-induced perturbations in the neurovascular unit (NVU). We demonstrated that pinocembrin exhibits neuroprotection through inhibition of the Abeta and/or RAGE pathway, but the therapeutic role and mechanism involved are not ascertained. Here, we report that a 3-month treatment with pinocembrin prevents the cognition decline in APP/PS1 transgenic mice without altering Abeta burden and oxidative stress. Instead, pinocembrin is effective in conferring neurovascular protection through maintenance of neuropil ultrastructure, reduction of glial activation and levels of inflammatory mediators, preservation of microvascular function, improving the cholinergic system by conserving the ERK-CREB-BDNF pathway, and modulation of RAGE-mediated transduction. Furthermore, in an in vitro model, pinocembrin provides the NVU protection against fibrillar Abeta(1)(-)(4)(2), accompanied by regulation of neurovascular RAGE pathways. Our findings indicate that pinocembrin improves cognition, at least in part, attributable to the NVU protection, and highlights pinocembrin as a potential therapeutic strategy for the prevention and/or treatment of Alzheimer's disease. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Liu, Rui AU - Liu R AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Li, Jin-ze AU - Li JZ AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Song, Jun-ke AU - Song JK AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Zhou, Dan AU - Zhou D AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Huang, Chao AU - Huang C AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Bai, Xiao-yu AU - Bai XY AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Xie, Tao AU - Xie T AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Zhang, Xue AU - Zhang X AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Li, Yong-jie AU - Li YJ AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. FAU - Wu, Cai-xia AU - Wu CX AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China; School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China. FAU - Zhang, Lan AU - Zhang L AD - Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Geriatric Medical Research Center, Beijing 100053, PR China. FAU - Li, Lin AU - Li L AD - Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Geriatric Medical Research Center, Beijing 100053, PR China. FAU - Zhang, Tian-tai AU - Zhang TT AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. Electronic address: ttzhang@imm.ac.cn. FAU - Du, Guan-hua AU - Du GH AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China. Electronic address: bessie0420@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131228 PL - United States TA - Neurobiol Aging JT - Neurobiology of aging JID - 8100437 RN - 0 (Amyloid beta-Peptides) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Flavanones) RN - 0 (Neuroprotective Agents) RN - 0 (Receptor for Advanced Glycation End Products) RN - 0 (Receptors, Immunologic) RN - 8T7C8CH791 (pinocembrin) SB - IM MH - Alzheimer Disease/*drug therapy/metabolism/pathology/*psychology MH - Amyloid beta-Peptides/metabolism MH - Animals MH - Brain/metabolism MH - Brain-Derived Neurotrophic Factor/physiology MH - Cognition/*drug effects MH - Cyclic AMP Response Element-Binding Protein/physiology MH - Disease Models, Animal MH - Female MH - Flavanones/*pharmacology/*therapeutic use MH - MAP Kinase Signaling System/physiology MH - Male MH - Mice MH - *Neuroprotective Agents MH - Receptor for Advanced Glycation End Products MH - Receptors, Immunologic/physiology MH - Signal Transduction/drug effects OTO - NOTNLM OT - Alzheimer's disease OT - Amyloid-beta peptide OT - Pinocembrin OT - The neurovascular unit OT - The receptor for advanced glycation end products EDAT- 2014/01/29 06:00 MHDA- 2014/12/15 06:00 CRDT- 2014/01/29 06:00 PHST- 2013/05/14 00:00 [received] PHST- 2013/11/13 00:00 [revised] PHST- 2013/12/25 00:00 [accepted] PHST- 2014/01/29 06:00 [entrez] PHST- 2014/01/29 06:00 [pubmed] PHST- 2014/12/15 06:00 [medline] AID - S0197-4580(13)00673-8 [pii] AID - 10.1016/j.neurobiolaging.2013.12.031 [doi] PST - ppublish SO - Neurobiol Aging. 2014 Jun;35(6):1275-85. doi: 10.1016/j.neurobiolaging.2013.12.031. Epub 2013 Dec 28.