Cited by 28Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Characterization of Thorn‐Shaped Astrocytes in White Matter of Temporal Lobe in A lzheimer's Disease Brains

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López‐González, Irene, Carmona, Margarita, Blanco, Rosa, Luna‐Muñoz, José, Martínez‐Mandonado, Alejandra, Mena, Raúl, Ferrer, Isidre·2013·Brain Pathology

Abstract

Thorn‐shaped astrocytes (T s A) are mainly localized in the periventricular white matter of the temporal lobe in a subgroup of aged individuals usually in the context of A lzheimer's disease (AD). Immunohistochemistry of T s A shows 4 R tau deposition, tau phosphorylation at different sites recognized with phosphospecific anti‐tau antibodies T hr181, S er202, S er214, T hr231, S er396, S er422, and clones AT 8 and PHF‐1, and conformational changes revealed with A lz50 and MC‐1 antibodies; T s A are also immunostained with antibodies to active tau kinases MAPK/ERK‐P, SAPK/JNK‐P, p38‐P and GSK‐3β. These findings are common to neurofibrillary tangles in AD. However, T s A are not stained with 3Rtau antibodies, and they are seldom stained or not at all with phosphospecific tau S er262 and with T au‐C 3 antibody, which recognizes the latter tau truncation at aspartic acid 421. Previous studies have shown that tau phosphorylation at S er262 reduces tau binding to microtubules and increases caspase‐3 activity, whereas tau truncation at aspartic acid 421 is associated with tau ubiquitination, and toxic effects of tau. In this line, ubiquitin is not accumulated in T s A, and in situ end‐labeling of nuclear DNA fragmentation shows absence of degeneration in T s A. These observations support the concept that tau lesions in neurons differ from those seen in T s A in AD.

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Crossref · 10.1111/j.1750-3639.2012.00627.x

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  • Astrocytic PHF-tau pathology in CTE is predominantly 4R tau immunopositive and more widely distributed than that reported in the medial temporal lobe in aging and AD.

    “Astrocytic PHF-tau pathology in CTE is predominantly 4R tau immunopositive, but more widely distributed than that reported in the medial temporal lobe in aging and AD [103, 114].”

    From The neuropathology of sport (2014) · cites this paper as [114]

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Authors
López‐González, I., Carmona, M., Blanco, R., Luna‐Muñoz, J., Martínez‐Mandonado, A., Mena, R., & Ferrer, I.
Affiliations
  • Bellvitge University Hospital (ES)
  • Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (MX)
  • CIBERNED (Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas), Institut de Neuropatologia, IDIBELL‐Hospital Universitari de Bellvitge Universitat de Barcelona Hospitalet de Llobregat Spain
Venue
Brain Pathology
Publisher
Wiley
Published
2012-09-13
Volume
23
Issue
2
Pages
144-153
ISSN
  • 1015-6305 (ISSN-L)
  • 1750-3639
OpenAlex
W2117283190
Cited by
28
References
54
Citations by year
2026: 1 · 2025: 1 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 5 · 2017: 3 · 2015: 2 · 2014: 1 · 2013: 2 · 2012: 1
FWCI
1.29
Type
journal article
Language
en
Open access
Locations
  • Brain Pathology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, other-oa)
Funders
European Commission
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, tau phosphorylation, 4R tau, tau conformation, neurofibrillary tangles, MAPK/ERK pathway, SAPK/JNK, p38 MAPK, GSK3β, tau truncation, caspase-3, periventricular white matter, temporal lobe, astrocyte degeneration
MeSH terms
Glycogen Synthase Kinase 3 beta, Aged, Aged, 80 and over, Alzheimer Disease, Astrocytes, Axons, Female, Humans, Male, Nerve Fibers, Myelinated, Neurons, Phosphorylation, Temporal Lobe, Neurofibrillary Tangles, tau Proteins, Glycogen Synthase Kinase 3, Mitogen-Activated Protein Kinase 8, Cell Shape, Caspase 3

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