Competitive Co-chaperone Displacement

Proposed by etl-backfill

FKBP5 drug discovery market 52% active
Compare across mechanisms →
Composite
46%
Novelty
50%
Feasibility
50%
Impact
—
Mechanistic
50%
Druggability
50%
Safety
50%
Confidence
50%

Mechanistic description

Small molecules that competitively displace tau-stabilizing immunophilins (FKBP51) from HSP90 while recruiting tau-destabilizing co-chaperones (FKBP52), reprogramming HSP90 complexes from tau-protective to tau-degrading without inhibiting HSP90’s essential functions.

Mechanism / pathway

  1. FKBP5
  2. drug discovery

Evidence for (5)

  • Modulating FKBP5/FKBP51 and autophagy lowers HTT (huntingtin) levels.

    PMID:34024231 2021 Autophagy

  • Interplay of p23 with FKBP51 and their chaperone complex in regulating tau aggregation.

    PMID:39809798 2025 Nat Commun

  • The Hsp90 cochaperone, FKBP51, increases Tau stability and polymerizes microtubules.

    PMID:20071522 2010 J Neurosci

  • Molecular landscape of the overlap between Alzheimer's disease and somatic insulin-related diseases.

    PMID:39465382 2024 Alzheimers Res Ther

  • Organization and function of the FKBP52 and FKBP51 genes.

    PMID:21514887 2011 Curr Opin Pharmacol

Evidence against (1)

Evidence matrix

5 supporting 0 contradicting
100% supporting

Supporting

  • Modulating FKBP5/FKBP51 and autophagy lowers HTT (huntingtin) levels. PMID:34024231 · 2021 · Autophagy
  • Interplay of p23 with FKBP51 and their chaperone complex in regulating tau aggregation. PMID:39809798 · 2025 · Nat Commun
  • The Hsp90 cochaperone, FKBP51, increases Tau stability and polymerizes microtubules. PMID:20071522 · 2010 · J Neurosci
  • Molecular landscape of the overlap between Alzheimer's disease and somatic insulin-related diseases. PMID:39465382 · 2024 · Alzheimers Res Ther
  • Organization and function of the FKBP52 and FKBP51 genes. PMID:21514887 · 2011 · Curr Opin Pharmacol

Contradicting

No contradicting evidence recorded.

Cite this hypothesis

Cite this hypothesis
Citation

etl-backfill (2026). Competitive Co-chaperone Displacement. SciDEX hypothesis. https://prism.scidex.ai/hypotheses/hyp-SDA-2026-04-09-gap-debate-20260409-201742-5407d57d-1

BibTeX 
@misc{scidex_hypothesis_hypsda20,
  title        = {Competitive Co-chaperone Displacement},
  author       = {etl-backfill},
  year         = {2026},
  howpublished = {SciDEX hypothesis},
  url          = {https://prism.scidex.ai/hypotheses/hyp-SDA-2026-04-09-gap-debate-20260409-201742-5407d57d-1},
  note         = {SciDEX artifact hypothesis:hyp-SDA-2026-04-09-gap-debate-20260409-201742-5407d57d-1}
}

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