PMID- 29149631 OWN - NLM STAT- MEDLINE DCOM- 20180926 LR - 20210109 IS - 1558-1497 (Electronic) IS - 0197-4580 (Print) IS - 0197-4580 (Linking) VI - 62 DP - 2018 Feb TI - Prostaglandin J2 promotes O-GlcNAcylation raising APP processing by alpha- and beta-secretases: relevance to Alzheimer's disease. PG - 130-145 LID - S0197-4580(17)30348-2 [pii] LID - 10.1016/j.neurobiolaging.2017.10.009 [doi] AB - Regulation of the amyloid precursor protein (APP) processing by alpha- and beta-secretases is of special interest to Alzheimer's disease (AD), as these proteases prevent or mediate amyloid beta formation, respectively. Neuroinflammation is also implicated in AD. Our data demonstrate that the endogenous mediator of inflammation prostaglandin J2 (PGJ2) promotes full-length APP (FL-APP) processing by alpha- and beta-secretases. The decrease in FL-APP was independent of proteasomal, lysosomal, calpain, caspase, and gamma-secretase activities. Moreover, PGJ2-treatment promoted cleavage of secreted APP, specifically sAPPalpha and sAPPbeta, generated by alpha and beta-secretase, respectively. Notably, PGJ2-treatment induced caspase-dependent cleavage of sAPPbeta. Mechanistically, PGJ2-treatment selectively diminished mature (O- and N-glycosylated) but not immature (N-glycosylated only) FL-APP. PGJ2-treatment also increased the overall levels of protein O-GlcNAcylation, which occurs within the nucleocytoplasmic compartment. It is known that APP undergoes O-GlcNAcylation and that the latter protects proteins from proteasomal degradation. Our results suggest that by increasing protein O-GlcNAcylation levels, PGJ2 renders mature APP less prone to proteasomal degradation, thus shunting APP toward processing by alpha- and beta-secretases. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Jean-Louis, Teneka AU - Jean-Louis T AD - Department of Biological Sciences, Hunter College, Biology and Biochemistry Programs, Graduate Center, The City University of New York, New York, NY, USA. FAU - Rockwell, Patricia AU - Rockwell P AD - Department of Biological Sciences, Hunter College, Biology and Biochemistry Programs, Graduate Center, The City University of New York, New York, NY, USA. FAU - Figueiredo-Pereira, Maria E AU - Figueiredo-Pereira ME AD - Department of Biological Sciences, Hunter College, Biology and Biochemistry Programs, Graduate Center, The City University of New York, New York, NY, USA. Electronic address: pereira@genectr.hunter.cuny.edu. LA - eng GR - G12 MD007599/MD/NIMHD NIH HHS/United States GR - R25 GM060665/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20171114 PL - United States TA - Neurobiol Aging JT - Neurobiology of aging JID - 8100437 RN - 0 (Amyloid beta-Protein Precursor) RN - 60203-57-8 (9-deoxy-delta-9-prostaglandin D2) RN - EC 3.4.- (Amyloid Precursor Protein Secretases) RN - EC 3.4.22.- (Caspases) RN - EC 3.4.25.1 (Proteasome Endopeptidase Complex) RN - RXY07S6CZ2 (Prostaglandin D2) SB - IM MH - Alzheimer Disease/*etiology/*metabolism MH - Amyloid Precursor Protein Secretases/*physiology MH - Amyloid beta-Protein Precursor/*metabolism MH - Animals MH - Caspases/physiology MH - Cells, Cultured MH - Cytoplasm/metabolism MH - Female MH - Glycosylation MH - Humans MH - Inflammation/etiology/metabolism MH - Male MH - Prostaglandin D2/*analogs & derivatives/physiology MH - Proteasome Endopeptidase Complex/metabolism MH - Proteolysis MH - Rats, Sprague-Dawley MH - Tumor Cells, Cultured PMC - PMC5743611 MID - NIHMS915858 OTO - NOTNLM OT - APP OT - Apoptosis OT - O-GlcNAcylation OT - Prostaglandin J2 OT - Secretases COIS- Disclosure Statement: The authors declare no conflicts of interest. EDAT- 2017/11/18 06:00 MHDA- 2018/09/27 06:00 PMCR- 2019/02/01 CRDT- 2017/11/18 06:00 PHST- 2017/08/07 00:00 [received] PHST- 2017/09/26 00:00 [revised] PHST- 2017/10/11 00:00 [accepted] PHST- 2017/11/18 06:00 [pubmed] PHST- 2018/09/27 06:00 [medline] PHST- 2017/11/18 06:00 [entrez] PHST- 2019/02/01 00:00 [pmc-release] AID - S0197-4580(17)30348-2 [pii] AID - 10.1016/j.neurobiolaging.2017.10.009 [doi] PST - ppublish SO - Neurobiol Aging. 2018 Feb;62:130-145. doi: 10.1016/j.neurobiolaging.2017.10.009. Epub 2017 Nov 14.