PMID- 31796678 OWN - NLM STAT- MEDLINE DCOM- 20201118 LR - 20211204 IS - 1875-8908 (Electronic) IS - 1387-2877 (Linking) VI - 73 IP - 2 DP - 2020 TI - Carnosic Acid Reverses the Inhibition of ApoE4 on Cell Surface Level of ApoER2 and Reelin Signaling Pathway. PG - 517-528 LID - 10.3233/JAD-190914 [doi] AB - The cell surface level of apolipoprotein E receptor 2 (ApoER2) increases by cyclic transport of ApoER2 and then activates Reelin signaling pathway to exert neuroprotective function in AD. ApoER2 ligand Apolipoprotein E4 (ApoE4) inhibits the recycling of ApoER2 to the cell surface rendering neurons unresponsive to Reelin. Carnosic acid (CA) is proven to possess neuroprotective and neurotrophic functions in Alzheimer's disease (AD) mouse model. However, there are few reports about how ApoE4 impairs the recycling of ApoER2 and if CA can affect the cyclic transport of ApoER2. In this study, we demonstrated that ApoE4 attenuates the binding of sorting nexin 17 (SNX17) to ApoER2 and inhibits the recycling of ApoER2, resulting in decreased cell surface level of ApoER2. Further, we found that CA enhances the binding of SNX17 to ApoER2, counteracts the negative effects of ApoE4 on the cell surface level of ApoER2 to reverse the ApoE4-induced reduction in Reelin signaling activation by increasing the phosphorylation of the N-methyl-D-aspartate receptor (NMDAR) and cAMP-response element-binding protein (CREB) and the expression of Gria2. Thus, CA promotes neurite growth inhibited by ApoE4. Our work suggests that CA may be a potential approach to attenuate the risk of ApoE4-associated AD. FAU - Feng, Maoxiao AU - Feng M AD - Department of Human Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, Shandong, China. FAU - Cui, Donghai AU - Cui D AD - Department of Human Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, Shandong, China. FAU - Li, Yi AU - Li Y AD - Department of Neurology, Qilu Hospital, Shandong University, Jinan, Shandong, China. FAU - Shi, Jian AU - Shi J AD - Department of Neurology, Department of Veterans Affairs Medical Center, San Francisco and University of California, San Francisco, CA, USA. FAU - Xiang, Lan AU - Xiang L AD - School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China. FAU - Bian, Hong AU - Bian H AD - Department of Neurology, Jinan Central Hospital, Shandong University, Jinan, Shandong, China. FAU - Ma, Zhiyong AU - Ma Z AD - The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital, Shandong University, Jinan, Shandong, China. FAU - Xia, Wen AU - Xia W AD - Department of Neurology, Qilu Hospital, Shandong University, Jinan, Shandong, China. FAU - Wei, Guangwei AU - Wei G AD - Department of Human Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, Shandong, China. LA - eng PT - Journal Article PL - Netherlands TA - J Alzheimers Dis JT - Journal of Alzheimer's disease : JAD JID - 9814863 RN - 0 (Abietanes) RN - 0 (Apolipoprotein E4) RN - 0 (Cell Adhesion Molecules, Neuronal) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Low Density Lipoprotein Receptor-Related Protein-1) RN - 0 (Nerve Tissue Proteins) RN - 0 (Neuroprotective Agents) RN - 0 (Receptors, AMPA) RN - 0 (Receptors, Cell Surface) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 0 (Reelin Protein) RN - 0 (Reln protein, rat) RN - 0 (SNX17 protein, human) RN - 0 (Sorting Nexins) RN - EC 3.4.21.- (RELN protein, human) RN - EC 3.4.21.- (Reln protein, mouse) RN - EC 3.4.21.- (Serine Endopeptidases) RN - LI791SXT24 (salvin) RN - P6W5IXV8V9 (glutamate receptor ionotropic, AMPA 2) SB - IM MH - Abietanes/*pharmacology MH - Animals MH - Apolipoprotein E4/*antagonists & inhibitors MH - Cell Adhesion Molecules, Neuronal/*metabolism MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Extracellular Matrix Proteins/*metabolism MH - Female MH - Humans MH - Low Density Lipoprotein Receptor-Related Protein-1/*antagonists & inhibitors/metabolism MH - Nerve Tissue Proteins/*metabolism MH - Neurites/drug effects MH - Neuroprotective Agents/*pharmacology MH - PC12 Cells MH - Pregnancy MH - Rats MH - Receptors, AMPA/biosynthesis/genetics MH - Receptors, Cell Surface/drug effects MH - Receptors, N-Methyl-D-Aspartate/drug effects MH - Reelin Protein MH - Serine Endopeptidases/*metabolism MH - Signal Transduction/*drug effects MH - Sorting Nexins/metabolism OTO - NOTNLM OT - Apolipoprotein E receptor 2 OT - Apolipoprotein E4 OT - Reelin signaling pathway OT - carnosic acid OT - sorting nexin 17 EDAT- 2019/12/05 06:00 MHDA- 2020/11/20 06:00 CRDT- 2019/12/05 06:00 PHST- 2019/12/05 06:00 [pubmed] PHST- 2020/11/20 06:00 [medline] PHST- 2019/12/05 06:00 [entrez] AID - JAD190914 [pii] AID - 10.3233/JAD-190914 [doi] PST - ppublish SO - J Alzheimers Dis. 2020;73(2):517-528. doi: 10.3233/JAD-190914.