Evidence map›Paper›PMID 19881952›Full record

ArticleNeoplasia (New York, N.Y.)2009

Chaperone-targeting cytotoxin and endoplasmic reticulum stress-inducing drug synergize to kill cancer cells.

Joseph M Backer, Arcadius V Krivoshein, Carl V Hamby, John Pizzonia, Kenneth S Gilbert, Yonaton S Ray, Harrison Brand, Adrienne W Paton, James C Paton, Marina V Backer

Open access · goldAbstract read
In one paragraph

Article in Neoplasia (New York, N.Y.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

38 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Exploring Cytotoxic mRNAs as a Novel Class of Anti-cancer Biotherapeutics.Molecular therapy. Methods & clinical development · 2018
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Protein Folding and Mechanisms of Proteostasis.International journal of molecular sciences · 2015
    Review
  18. Endoplasmic reticulum stress and cancer.Journal of cancer prevention · 2014
    Review
  19. Review
  20. Review
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

10 authors at 3 institutions in 2 countries.

Joseph M BackerSibTech, Inc, Brookfield, CT 06804, USA. mbacker@sibtech.com
Arcadius V Krivoshein
Carl V Hamby
John Pizzonia
Kenneth S Gilbert
Yonaton S Ray
Harrison Brand
Adrienne W Paton
James C Paton
Marina V Backer
Sibtech (United States) · USUniversity of Adelaide · AUNew York Medical College · US

Funding

Targeting GRP78/BIP As An Adjunct Therapy For EGFR-positive Breast CancerR43CA132349 · NCI · SIBTECH, INC. · PI BACKER, MARINA V · 2008 to 2008
$246k
NCI NIH HHS 1R43CA132349-01A2NCI NIH HHS R43 CA132349
6 · The paper itself

Abstract

Diverse physiological and therapeutic insults that increase the amount of unfolded or misfolded proteins in the endoplasmic reticulum (ER) induce the unfolded protein response, an evolutionarily conserved protective mechanism that manages ER stress. Glucose-regulated protein 78/immunoglobulin heavy-chain binding protein (GRP78/BiP) is an ER-resident protein that plays a central role in the ER stress response and is the only known substrate of the proteolytic A subunit (SubA) of a novel bacterial AB(5) toxin. Here, we report that an engineered fusion protein, epidermal growth factor (EGF)-SubA, combining EGF and SubA, is highly toxic to growing and confluent epidermal growth factor receptor-expressing cancer cells, and its cytotoxicity is mediated by a remarkably rapid cleavage of GRP78/BiP. Systemic delivery of EGF-SubA results in a significant inhibition of human breast and prostate tumor xenografts in mouse models. Furthermore, EGF-SubA dramatically increases the sensitivity of cancer cells to the ER stress-inducing drug thapsigargin, and vice versa, demonstrating the first example of mechanism-based synergism in the action of a cytotoxin and an ER-targeting drug.

Indexed as

AnimalsAntineoplastic AgentsBacterial ToxinsBlotting, WesternBreast NeoplasmsDrug SynergismEndoplasmic ReticulumEndoplasmic Reticulum Chaperone BiPEpidermal Growth FactorFemaleHeat-Shock ProteinsHumansImmunohistochemistryMaleMiceMicroscopy, FluorescenceAntineoplastic AgentsBacterial ToxinsEndoplasmic Reticulum Chaperone BiPEpidermal Growth FactorHeat-Shock ProteinsHSPA5 protein, humanHspa5 protein, mouseRecombinant Fusion Proteins

Identifiers

PMID19881952
PMCPMC2767218
OpenAlexW1592978302

What OpenQuestion holds

Textmetadata
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.