PMID- 29559585 OWN - NLM STAT- MEDLINE DCOM- 20190916 LR - 20200306 IS - 1937-9145 (Electronic) IS - 1945-0877 (Print) IS - 1945-0877 (Linking) VI - 11 IP - 522 DP - 2018 Mar 20 TI - Nitrosylation of GAPDH augments pathological tau acetylation upon exposure to amyloid-beta. LID - 10.1126/scisignal.aao6765 [doi] LID - eaao6765 AB - Acetylation of the microtubule-associated protein tau promotes its polymerization into neurofibrillary tangles that are implicated in the pathology of Alzheimer's disease (AD). The gaseous neurotransmitter nitric oxide (NO) regulates cell signaling through the nitrosylation of proteins. We found that NO production and tau acetylation at Lys(280) occurred in the brain tissue in mice and in cultured mouse cortical neurons in response to exposure to amyloid-beta(1-42) (Abeta(1-42)), a peptide that is also implicated in AD. An increased abundance of NO facilitated the S-nitrosylation (SNO) of glyceraldehyde-3-phosphate dehydrogenase (GAPDH). S-nitrosylated GAPDH (GAPDH-SNO) promoted the acetylation and activation of the acetyltransferase p300 and facilitated the nitrosylation and inactivation of the deacetylase sirtuin 1 (SIRT1). The abundance of GAPDH-SNO was increased in postmortem brain samples from AD patients. Preventing the increase in GAPDH-SNO abundance in both cultured neurons and mice, either by overexpression of the nitrosylation mutant of GAPDH (GAPDH C150S) or by treatment with the GAPDH nitrosylation inhibitor CGP3466B (also known as omigapil), abrogated Abeta(1-42)-induced tau acetylation, memory impairment, and locomotor dysfunction in mice, suggesting that this drug might be repurposed to treat patients with AD. CI - Copyright (c) 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. FAU - Sen, Tanusree AU - Sen T AUID- ORCID: 0000-0002-8970-7007 AD - Department of Neurological Surgery, University of Pittsburgh, 200 Lothrop Street, Scaife Hall, Pittsburgh, PA 15213, USA. FAU - Saha, Pampa AU - Saha P AUID- ORCID: 0000-0002-4926-9081 AD - Department of Neurological Surgery, University of Pittsburgh, 200 Lothrop Street, Scaife Hall, Pittsburgh, PA 15213, USA. FAU - Sen, Nilkantha AU - Sen N AUID- ORCID: 0000-0002-8383-8209 AD - Department of Neurological Surgery, University of Pittsburgh, 200 Lothrop Street, Scaife Hall, Pittsburgh, PA 15213, USA. senn@pitt.edu. LA - eng GR - R01 EY025622/EY/NEI NIH HHS/United States GR - R01 NS094516/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20180320 PL - United States TA - Sci Signal JT - Science signaling JID - 101465400 RN - 0 (Amyloid beta-Peptides) RN - 0 (Oxepins) RN - 0 (Peptide Fragments) RN - 0 (amyloid beta-protein (1-42)) RN - 0 (dibenzo(b,f)oxepin-10-ylmethyl-methyl-prop-2-ynyl-amine) RN - 0 (tau Proteins) RN - 31C4KY9ESH (Nitric Oxide) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type I) RN - EC 1.2.1.- (Glyceraldehyde-3-Phosphate Dehydrogenases) RN - EC 2.3.1.48 (p300-CBP Transcription Factors) RN - EC 2.3.1.48 (p300-CBP-associated factor) RN - EC 3.5.1.- (Sirt1 protein, mouse) RN - EC 3.5.1.- (Sirtuin 1) SB - IM MH - Acetylation/drug effects MH - Alzheimer Disease/chemically induced/genetics/*metabolism MH - Amyloid beta-Peptides/toxicity MH - Animals MH - Brain/drug effects/metabolism MH - Glyceraldehyde-3-Phosphate Dehydrogenases/*metabolism MH - Male MH - Maze Learning/drug effects MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Motor Activity/drug effects MH - Nitric Oxide/*metabolism MH - Nitric Oxide Synthase Type I/*deficiency/genetics MH - Oxepins/pharmacology MH - Peptide Fragments/toxicity MH - Sirtuin 1/*metabolism MH - p300-CBP Transcription Factors/*metabolism MH - tau Proteins/*metabolism PMC - PMC6371980 MID - NIHMS1005834 EDAT- 2018/03/22 06:00 MHDA- 2019/09/17 06:00 PMCR- 2019/02/12 CRDT- 2018/03/22 06:00 PHST- 2018/03/22 06:00 [entrez] PHST- 2018/03/22 06:00 [pubmed] PHST- 2019/09/17 06:00 [medline] PHST- 2019/02/12 00:00 [pmc-release] AID - 11/522/eaao6765 [pii] AID - 10.1126/scisignal.aao6765 [doi] PST - epublish SO - Sci Signal. 2018 Mar 20;11(522):eaao6765. doi: 10.1126/scisignal.aao6765.