Cited by 368Alzheimer's disease research and treatmentsNeuroscience and Neuropharmacology ResearchAxon Guidance and Neuronal Signaling

MAP2 and tau segregate into dendritic and axonal domains after the elaboration of morphologically distinct neurites: an immunocytochemical study of cultured rat cerebrum

Open access
Kosik, KS, Finch, EA·1987·The Journal of Neuroscience

Abstract

We sought to determine whether the strict segregation of MAP2 and tau into somatodendritic and axonal compartments in situ was maintained in dissociated neuronal cultures of the rat cerebrum. Cultures grown under serum-free conditions were immunolabeled with monoclonal antibodies specific for MAP2 and tau. At 14 d after plating, a clear distinction between MAP2- and tau-immunoreactive neurites was apparent. MAP2- immunoreactive neurites were relatively short, thick, tapering, and branched. Tau-immunoreactive neurites formed a crisscrossing meshwork of long, fine-caliber neurites, which, in more densely plated cultures, had a tendency to form thick, ropelike fascicles. Unlike the MAP2 pattern, tau antibodies labeled somata only lightly. Since distinct populations of neurites were labeled with the 2 antibodies, we sought to observe the development of the topographically distinct compartments by double-labeled immunocytochemistry with both polyclonal and monoclonal antibodies to MAP2 and tau. Cells observed within the first 8 hr after plating demonstrated equally intense MAP2 and tau immunoreactivity in a coextensive distribution throughout the cell body and initial neurites. By 16 hr, some neurites began to assume dendritic and axonal features; however, many such processes contained reaction product for both MAP2 and tau. Beginning at this time, neurites that appeared axonal showed a progressively weaker reaction with MAP2 antibodies, and neurites that appeared dendritic showed a progressively weaker reaction with tau antibodies. In most neurites the diminution appeared to occur uniformly over the entire extent of the neurite. During this transformation period there were occasional axon-like neurites that contained MAP2 immunoreactivity proximally, while tau immunoreactivity extended over the entire length of the neurite. We conclude that neurons in culture are able to compartmentalize MAP2 and tau into their appropriate processes and only attain an apparently homogeneous population of one of these MAPs after the neuron has assumed dendritic and axonal features. The analysis also lends indirect support to the hypothesis that microtubule-associated proteins (MAPs) form this association at the distal extent of the growing neurite.

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.07-10-03142.1987

Cites

28 of 28 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?

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

Research works printed but not linked: 3

  1. Binder, L. I., A. Frankfurter, H. Kim, A. Caceres, M. R. Payne, and L. I. Rebhun (1984) Heterogeneity of microtubule-associated protein 2 during rat brain. Proc. Natl. Acad. Sci. USA. 81: 5613-5617.
  2. Kosik, K. S. C. L. Joachim, and D. J. Selkoe (1986) Microtubule- associated protein tau is a major antigenic component of paired helical filaments in Alzheimer's disease. Proc. Natl. Acad. Sci. USA 83: 4044-4048.
  3. Towbin, H., T. Staehelin, and J. Gordon (1979) Electrophoretictransfer of proteins from polyacrylamide gels to nitrocellulose sheets: Proce- dure and some auolications. Proc. Natl. Acad. Sci. USA 76: 4350- __ 4354.

Cited by

Sorted by citations

Authors
Kosik, K., & Finch, E.
Affiliations
Brigham and Women's Hospital (US)
Venue
The Journal of Neuroscience
Published
1987-10-01
Volume
7
Issue
10
Pages
3142-3153
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1812094318
Cited by
368
References
28
Citations by year
2026: 2 · 2025: 4 · 2024: 2 · 2023: 7 · 2022: 14 · 2021: 12 · 2020: 6 · 2019: 5 · 2018: 10 · 2017: 14 · 2016: 17 · 2015: 13 · 2014: 15 · 2013: 7 · 2012: 13
FWCI
10.43
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01ag006172-05, 5k07ns000835-03)
  • National Institute on Aging (5 R01 AG06172)
  • National Institute of Neurological Disorders and Stroke (5K07 NS00835)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
Keywords
MAP2, tau protein, microtubule-associated proteins, dendritic compartmentalization, neurite development, neurite fasciculation, cultured neurons, microtubule cytoskeleton
MeSH terms
Animals, Axons, Cells, Cultured, Cerebral Cortex, Dendrites, Immunohistochemistry, Microtubule-Associated Proteins, Neurons, Staining and Labeling, Time Factors, tau Proteins, Rats

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