Evidence map›Paper›PMID 21909374›Full record

ArticlePloS one2011

Stressing the ubiquitin-proteasome system without 20S proteolytic inhibition selectively kills cervical cancer cells.

Ravi K Anchoori, Saeed R Khan, Thanasak Sueblinvong, Alicia Felthauser, Yoshie Iizuka, Riccardo Gavioli, Federica Destro, Rachel Isaksson Vogel, Shiwen Peng, Richard B S Roden and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Dienone Compounds: Targets and Pharmacological Responses.Journal of medicinal chemistry · 2020
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Small-Molecule Inhibitors of the Proteasome's Regulatory Particle.Chembiochem : a European journal of chemical biology · 2019
    Review
  11. Article
  12. Article
  13. Deubiquitinases and cancer: A snapshot.Critical reviews in oncology/hematology · 2016
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Small-molecule RA-9 inhibits proteasome-associated DUBs and ovarian cancer in vitro and in vivo via exacerbating unfolded protein responses.Clinical cancer research : an official journal of the American Association for Cancer Research · 2014
    Article
  19. Article
  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

11 authors at 3 institutions in 2 countries.

Ravi K AnchooriDepartment of Pathology, Johns Hopkins University, Baltimore, Maryland, United States of America.
Saeed R Khan
Thanasak Sueblinvong
Alicia Felthauser
Yoshie Iizuka
Riccardo Gavioli
Federica Destro
Rachel Isaksson Vogel
Shiwen Peng
Richard B S Roden
Martina Bazzaro
University of Minnesota · USJohns Hopkins University · USUniversity of Ferrara · IT

Funding

Treatment of HIV- and HIV+ Patients with HPV16+ CIN2/3 Using pNGLV4a-hCRTE6E7L2 DNA vaccine administered intramuscularly via electroporationP50CA098252 · NCI · JOHNS HOPKINS UNIVERSITY · PI Richard Bruce Roden · 2003 to 2026
$53.5M
NCI NIH HHS P50 CA098252
6 · The paper itself

Abstract

Cervical cancer cells exhibit an increased requirement for ubiquitin-dependent protein degradation associated with an elevated metabolic turnover rate, and for specific signaling pathways, notably HPV E6-targeted degradation of p53 and PDZ proteins. Natural compounds with antioxidant properties including flavonoids and triterpenoids hold promise as anticancer agents by interfering with ubiquitin-dependent protein degradation. An increasing body of evidence indicates that their α-β unsaturated carbonyl system is the molecular determinant for inhibition of ubiquitin-mediated protein degradation up-stream of the catalytic sites of the 20S proteasome. Herein we report the identification and characterization of a new class of chalcone-based, potent and cell permeable chemical inhibitors of ubiquitin-dependent protein degradation, and a lead compound RAMB1. RAMB1 inhibits ubiquitin-dependent protein degradation without compromising the catalytic activities of the 20S proteasome, a mechanism distinct from that of Bortezomib. Treatment of cervical cancer cells with RAMB1 triggers unfolded protein responses, including aggresome formation and Hsp90 stabilization, and increases p53 steady state levels. RAMB1 treatment results in activation of lysosomal-dependent degradation pathways as a mechanism to compensate for increasing levels of poly-ubiquitin enriched toxic aggregates. Importantly, RAMB1 synergistically triggers cell death of cervical cancer cells when combined with the lysosome inhibitor Chloroquine.

Indexed as

Proteasome InhibitorsAntineoplastic AgentsBiocatalysisCell AdhesionCell DeathCell Line, TumorCell SurvivalChloroquineCyclin D1Drug Screening Assays, AntitumorDrug SynergismFemaleHeat-Shock ResponseHSP90 Heat-Shock ProteinsHumansKeratinocytesAntineoplastic AgentsChloroquineCyclin D1HSP90 Heat-Shock ProteinsPolyubiquitinProteasome Endopeptidase ComplexProteasome InhibitorsTumor Suppressor Protein p53Ubiquitin

Identifiers

PMID21909374
PMCPMC3166081
OpenAlexW1978245328

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.