Evidence map›Paper›PMID 25756299›Full record

ArticleJournal of natural products2015

Cucurbitacin D Is a Disruptor of the HSP90 Chaperone Machinery.

Jessica A Hall, Sahithi Seedarala, Nichole Rice, Lucas Kopel, Fathi Halaweish, Brian S J Blagg

Open access · greenAbstract read
In one paragraph

Article in Journal of natural products, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.2field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Modulatory Effect of Cucurbitacin D fromPharmaceuticals (Basel, Switzerland) · 2024
    Article
  3. Review
  4. Article
  5. Inhibitors of theCells · 2021
    Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Cucurbitacins extracted from Cucumis melo L. (CuEC) exert a hypotensive effect via regulating vascular tone.Hypertension research : official journal of the Japanese Society of Hypertension · 2019
    Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Jessica A Hall†Department of Medicinal Chemistry, The University Of Kansas, 1251 Wescoe Hall Drive, 4070 Malott Hall, Lawrence, Kansas 66045, United States.
Sahithi Seedarala†Department of Medicinal Chemistry, The University Of Kansas, 1251 Wescoe Hall Drive, 4070 Malott Hall, Lawrence, Kansas 66045, United States.
Nichole Rice
Lucas Kopel
Fathi Halaweish
Brian S J Blagg†Department of Medicinal Chemistry, The University Of Kansas, 1251 Wescoe Hall Drive, 4070 Malott Hall, Lawrence, Kansas 66045, United States.
South Dakota State University · USUniversity of Kansas · US

Funding

HSP90 InhibitorsU01CA109265 · NCI · UNIVERSITY OF KANSAS LAWRENCE · PI BLAGG, BRIAN S J · 2006 to 2014
$2.2M
NCI NIH HHS CA109265NCI NIH HHS U01 CA109265
6 · The paper itself

Abstract

Heat shock protein 90 (Hsp90) facilitates the maturation of many newly synthesized and unfolded proteins (clients) via the Hsp90 chaperone cycle, in which Hsp90 forms a heteroprotein complex and relies upon cochaperones, immunophilins, etc., for assistance in client folding. Hsp90 inhibition has emerged as a strategy for anticancer therapies due to the involvement of clients in many oncogenic pathways. Inhibition of chaperone function results in client ubiquitinylation and degradation via the proteasome, ultimately leading to tumor digression. Small molecule inhibitors perturb ATPase activity at the N-terminus and include derivatives of the natural product geldanamycin. However, N-terminal inhibition also leads to induction of the pro-survival heat shock response (HSR), in which displacement of the Hsp90-bound transcription factor, heat shock factor-1, translocates to the nucleus and induces transcription of heat shock proteins, including Hsp90. An alternative strategy for Hsp90 inhibition is disruption of the Hsp90 heteroprotein complex. Disruption of the Hsp90 heteroprotein complex is an effective strategy to prevent client maturation without induction of the HSR. Cucurbitacin D, isolated from Cucurbita texana, and 3-epi-isocucurbitacin D prevented client maturation without induction of the HSR. Cucurbitacin D also disrupted interactions between Hsp90 and two cochaperones, Cdc37 and p23.

Indexed as

BenzoquinonesCucurbitaceaeDNA-Binding ProteinsHeat Shock Transcription FactorsHSP90 Heat-Shock ProteinsHumansLactams, MacrocyclicMCF-7 CellsMolecular ChaperonesMolecular StructureNeoplasmsTranscription FactorsTriterpenesBenzoquinonescucurbitacin DDNA-Binding ProteinsgeldanamycinHeat Shock Transcription FactorsHSP90 Heat-Shock ProteinsLactams, MacrocyclicMolecular ChaperonesTranscription FactorsTriterpenes

Identifiers

PMID25756299
PMCPMC5892428
OpenAlexW2315688363

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.