Domain boundary cross-talk hypothesis

Mechanistic description

MAP6 stability activity may suppress adjacent tau lability activity through direct physical interaction or by altering tubulin post-translational modifications

Prediction: MAP6 overexpression will extend stability into adjacent tau-rich regions; MAP6 knockout will extend lability into MAP6-rich regions

Mechanism / pathway

MAP6
→
neurodegeneration

Evidence for (5)

Tau and MAP6 establish labile and stable domains on microtubules.

PMID:40040809 2025 iScience
Antagonistic roles of tau and MAP6 in regulating neuronal development.

PMID:39257379 2024 J Cell Sci
BioID2-Based Tau Interactome Reveals Novel and Known Protein Interactions Associated with Multiple Cellular Pathways.

PMID:40910579 2025 J Proteome Res
Tau: It's Not What You Think.

PMID:30929793 2019 Trends Cell Biol
Beyond Neuronal Microtubule Stabilization: MAP6 and CRMPS, Two Converging Stories.

PMID:34025352 2021 Front Mol Neurosci

Evidence against (2)

Tau/MAP6 antagonism is shown in neuronal development models, but this does not establish that the same balance drives adult neurodegeneration progression or treatment response.

PMID:39257379 2024 J Cell Sci
A microtubule-stabilizing peptide strategy failed to show clinical benefit in progressive supranuclear palsy, cautioning against simple cytoskeletal-stabilization translation in tauopathy.

PMID:24873720 2014 Lancet Neurol

Evidence matrix

6 supporting 2 contradicting

75% supporting

Supporting

MAP6 stability activity may suppress adjacent tau lability activity through direct physical interaction or by altering tubulin post-translational modifications
Tau and MAP6 establish labile and stable domains on microtubules. PMID:40040809 · 2025 · iScience
Antagonistic roles of tau and MAP6 in regulating neuronal development. PMID:39257379 · 2024 · J Cell Sci
BioID2-Based Tau Interactome Reveals Novel and Known Protein Interactions Associated with Multiple Cellular Pathways. PMID:40910579 · 2025 · J Proteome Res
Tau: It's Not What You Think. PMID:30929793 · 2019 · Trends Cell Biol
Beyond Neuronal Microtubule Stabilization: MAP6 and CRMPS, Two Converging Stories. PMID:34025352 · 2021 · Front Mol Neurosci

Contradicting

Tau/MAP6 antagonism is shown in neuronal development models, but this does not establish that the same balance drives adult neurodegeneration progression or treatment response. PMID:39257379 · 2024 · J Cell Sci
A microtubule-stabilizing peptide strategy failed to show clinical benefit in progressive supranuclear palsy, cautioning against simple cytoskeletal-stabilization translation in tauopathy. PMID:24873720 · 2014 · Lancet Neurol

Cite this hypothesis

Citation

etl-backfill (2026). Domain boundary cross-talk hypothesis. SciDEX hypothesis. https://prism.scidex.ai/hypotheses/h-5a50ce127718

BibTeX

@misc{scidex_hypothesis_h5a50ce1,
  title        = {Domain boundary cross-talk hypothesis},
  author       = {etl-backfill},
  year         = {2026},
  howpublished = {SciDEX hypothesis},
  url          = {https://prism.scidex.ai/hypotheses/h-5a50ce127718},
  note         = {SciDEX artifact hypothesis:h-5a50ce127718}
}