Reducing acetylated tau is neuroprotective in brain injury.
Acetylation
Alzheimer Disease
/ etiology
Animals
Anti-Inflammatory Agents, Non-Steroidal
/ therapeutic use
Biomarkers
/ blood
Brain Injuries, Traumatic
/ complications
Cell Line
Diflunisal
/ therapeutic use
Female
Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating)
Humans
Male
Mice
Mice, Inbred C57BL
Neurons
/ metabolism
Neuroprotection
Salicylates
/ therapeutic use
Sirtuin 1
/ metabolism
p300-CBP Transcription Factors
/ antagonists & inhibitors
tau Proteins
/ blood
Alzheimer’s disease
P7C3
acetylation
congenital muscular dystrophy
diflunisal
neurodegeneration
neuroprotection
omigapil
salsalate
tau
traumatic brain injury
Journal
Cell
ISSN: 1097-4172
Titre abrégé: Cell
Pays: United States
ID NLM: 0413066
Informations de publication
Date de publication:
13 05 2021
13 05 2021
Historique:
received:
05
10
2020
revised:
21
01
2021
accepted:
15
03
2021
pubmed:
15
4
2021
medline:
22
12
2021
entrez:
14
4
2021
Statut:
ppublish
Résumé
Traumatic brain injury (TBI) is the largest non-genetic, non-aging related risk factor for Alzheimer's disease (AD). We report here that TBI induces tau acetylation (ac-tau) at sites acetylated also in human AD brain. This is mediated by S-nitrosylated-GAPDH, which simultaneously inactivates Sirtuin1 deacetylase and activates p300/CBP acetyltransferase, increasing neuronal ac-tau. Subsequent tau mislocalization causes neurodegeneration and neurobehavioral impairment, and ac-tau accumulates in the blood. Blocking GAPDH S-nitrosylation, inhibiting p300/CBP, or stimulating Sirtuin1 all protect mice from neurodegeneration, neurobehavioral impairment, and blood and brain accumulation of ac-tau after TBI. Ac-tau is thus a therapeutic target and potential blood biomarker of TBI that may represent pathologic convergence between TBI and AD. Increased ac-tau in human AD brain is further augmented in AD patients with history of TBI, and patients receiving the p300/CBP inhibitors salsalate or diflunisal exhibit decreased incidence of AD and clinically diagnosed TBI.
Identifiants
pubmed: 33852912
pii: S0092-8674(21)00363-9
doi: 10.1016/j.cell.2021.03.032
pmc: PMC8491234
mid: NIHMS1708334
pii:
doi:
Substances chimiques
Anti-Inflammatory Agents, Non-Steroidal
0
Biomarkers
0
Salicylates
0
tau Proteins
0
Diflunisal
7C546U4DEN
Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating)
EC 1.2.1.12
p300-CBP Transcription Factors
EC 2.3.1.48
p300-CBP-associated factor
EC 2.3.1.48
Sirtuin 1
EC 3.5.1.-
salicylsalicylic acid
V9MO595C9I
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2715-2732.e23Subventions
Organisme : NIA NIH HHS
ID : P30 AG013854
Pays : United States
Organisme : NIA NIH HHS
ID : F32 AG043301
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR001412
Pays : United States
Organisme : NCI NIH HHS
ID : P01 CA217797
Pays : United States
Organisme : RRD VA
ID : IK2 RX002928
Pays : United States
Organisme : NIA NIH HHS
ID : K01 AG057862
Pays : United States
Organisme : BLRD VA
ID : I01 BX002439
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG062566
Pays : United States
Organisme : NINDS NIH HHS
ID : R01 NS098740
Pays : United States
Organisme : NIGMS NIH HHS
ID : T32 GM007250
Pays : United States
Organisme : NIA NIH HHS
ID : K08 AG065463
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG062428
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG066707
Pays : United States
Organisme : NCI NIH HHS
ID : T32 CA078586
Pays : United States
Commentaires et corrections
Type : CommentIn
Type : CommentIn
Type : CommentIn
Informations de copyright
Published by Elsevier Inc.
Déclaration de conflit d'intérêts
Declaration of interests A.A.P. is an inventor on patents related to P7C3. L.G. is a founder of Aeton Therapeutics. No other authors declare competing interests.
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