Cited by 163Alzheimer's disease research and treatmentsProtein Kinase Regulation and GTPase SignalingDementia and Cognitive Impairment Research

Reactivating Kinase/p38 Phosphorylates τ Protein In Vitro

Reynolds, C. Hugh, Nebreda, Angel R., Gibb, Graham M., Utton, Michelle A., Anderton, Brian H.·1997·Journal of Neurochemistry

Abstract

Neurofibrillary tangles, one of the major pathological hallmarks of Alzheimer-diseased brains, consist primarily of aggregated paired helical filaments (PHFs) of hyperphosphorylated tau protein. Tau from normal brain and especially from foetal brain is also phosphorylated on some of the sites phosphorylated in PHFs, mainly at serines or threonines followed by prolines. A number of protein kinases can phosphorylate tau in vitro; those that require or accept prolines include GSK3 and members of the mitogen-activated protein (MAP) kinase family, ERK1, ERK2, and SAP kinase-beta/JNK. In this report, we show that another member of the MAP kinase family, the stress-activated kinase p38/RK, can phosphorylate tau in vitro. Western blots with phosphorylation-sensitive antibodies showed that p38, like ERK2 and SAP kinase-beta/JNK, phosphorylated tau at sites found phosphorylated physiologically (Thr181, Ser202, Thr205, and Ser396) and also at Ser422, which is phosphorylated in neurofibrillary tangles but not in normal adult or foetal brain. These findings support the possibility that cellular stress might contribute to tau hyperphosphorylation during the formation of PHFs, and hence, to the development of tau pathology.

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Crossref · 10.1046/j.1471-4159.1997.69010191.x

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Authors
Reynolds, C. H., Nebreda, A. R., Gibb, G. M., Utton, M. A., & Anderton, B. H.
Affiliations
Guy's Hospital (GB)
Corresponding author
Reynolds, C. Hugh
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
1997-07
Volume
69
Issue
1
Pages
191-198
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W2013149569
Cited by
161
References
0
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 13 · 2022: 7 · 2021: 2 · 2020: 2 · 2019: 1 · 2016: 3 · 2015: 3 · 2014: 6 · 2013: 6 · 2012: 5
FWCI
3.82
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
tau phosphorylation, p38 MAPK, neurofibrillary tangles, paired helical filaments, Alzheimer's disease, ERK2, glycogen synthase kinase-3, stress-activated kinases, cellular stress, tau hyperphosphorylation
MeSH terms
Alzheimer Disease, Amino Acids, Antibody Specificity, Brain Chemistry, Humans, Neurons, Phosphorylation, Stress, Physiological, tau Proteins, Calcium-Calmodulin-Dependent Protein Kinases, Mitogen-Activated Protein Kinases, p38 Mitogen-Activated Protein Kinases

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