Cited by 233Alzheimer's disease research and treatmentsCell death mechanisms and regulationMicrotubule and mitosis dynamics

Tau Cleavage and Dephosphorylation in Cerebellar Granule Neurons Undergoing Apoptosis

Open access
Canu, Nadia, Dus, Laura, Barbato, Christian, Ciotti, Maria T., Brancolini, Claudio, Rinaldi, Anna M., Novak, Michal, Cattaneo, Antonino +2 more·1998·The Journal of Neuroscience

Abstract

Cerebellar granule cells undergo apoptosis in culture after deprivation of potassium and serum. During this process we found that tau, a neuronal microtubule-associated protein that plays a key role in the maintenance of neuronal architecture, and the pathology of which correlates with intellectual decline in Alzheimer’s disease, is cleaved. The final product of this cleavage is a soluble dephosphorylated tau fragment of 17 kDa that is unable to associate with microtubules and accumulates in the perikarya of dying cells. The appearance of this 17 kDa fragment is inhibited by both caspase and calpain inhibitors, suggesting that tau is an in vivo substrate for both of these proteases during apoptosis. Tau cleavage is correlated with disruption of the microtubule network, and experiments with colchicine and taxol show that this is likely to be a cause and not a consequence of tau cleavage. These data indicate that tau cleavage and change in phosphorylation are important early factors in the failure of the microtubule network that occurs during neuronal apoptosis. Furthermore, this study introduces new insights into the mechanism(s) that generate the truncated forms of tau present in Alzheimer’s disease.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.18-18-07061.1998

Cites

71 of 71 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Calpain A has been shown to cleave tau and is reported to be responsible for producing a 17 kDa fragment that may be a highly toxic tau derivative.

    “Indeed, calpain A has been shown to cleave tau and is reported to be responsible for producing a 17 kDa fragment that may be a highly toxic tau derivative (211,212).”

    From Functional genomic screen and network analysis reveal novel modifiers of tauopathy dissociated from tau phosphorylation (2011) · cites this paper as [212]

    The section 'Identification of the proteases responsible for producing the 17 kDa fragment' reports that purified calpain cleaves tau to produce a 17 kDa band matching the one seen during neuronal apoptosis (page not indexed). Our copy does not identify the protease specifically as 'calpain A' or describe the fragment as highly toxic; the Discussion instead suggests a possible role for tau cleavage in cytoskeletal breakdown. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Canu, N., Dus, L., Barbato, C., Ciotti, M. T., Brancolini, C., Rinaldi, A. M., Novak, M., Cattaneo, A., Bradbury, A., & Calissano, P.
Affiliations
  • University of Rome Tor Vergata (IT)
  • Institute of Neurobiology and Molecular Medicine (IT)
  • AREA Science Park (IT)
  • Scuola Internazionale Superiore di Studi Avanzati (IT)
Venue
The Journal of Neuroscience
Published
1998-09-15
Volume
18
Issue
18
Pages
7061-7074
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2122437043
Cited by
232
References
71
Citations by year
2026: 1 · 2024: 1 · 2023: 1 · 2022: 4 · 2021: 3 · 2020: 6 · 2019: 6 · 2018: 13 · 2017: 7 · 2016: 3 · 2015: 7 · 2014: 13 · 2013: 9 · 2012: 6
FWCI
8.40
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion, other-oa)
  • Institutional Research Information System (University of Udine) (submittedVersion)
  • Scuola Normale Superiore di Pisa (submittedVersion)
Funders
Consiglio Nazionale delle Ricerche
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
Keywords
tau protein, tau cleavage, tau dephosphorylation, cerebellar granule cells, neuronal apoptosis, caspases, calpain, microtubule-associated proteins, Alzheimer's disease
MeSH terms
Alzheimer Disease, Animals, Antineoplastic Agents, Phytogenic, Calpain, Cerebellum, Colchicine, Cysteine Endopeptidases, Cytoskeleton, Enzyme Precursors, Microtubules, Neurons, Oligopeptides, Peptide Fragments, Phosphorylation, Solubility, Cysteine Proteinase Inhibitors, tau Proteins, Rats, Wistar, Apoptosis, Paclitaxel, Caspases, Rats, Caspase 3

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review