Evidence map›Paper›PMID 23958461›Full record

ArticleJournal of experimental & clinical cancer research : CR2013

Renal cancer-selective Englerin A induces multiple mechanisms of cell death and autophagy.

Richard T Williams, Alice L Yu, Mitchell B Diccianni, Emmanuel A Theodorakis, Ayse Batova

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Journal of experimental & clinical cancer research : CR, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Review
  3. Natural products targeting cancer cell dependency.The Journal of antibiotics · 2021
    Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. NaScientific reports · 2017
    Article
  9. Englerins: A Comprehensive Review.Journal of natural products · 2017
    Review
  10. Article
  11. Synthesis of a stable and orally bioavailable englerin analogue.Bioorganic & medicinal chemistry letters · 2016
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Richard T WilliamsDepartment of Chemistry and Biochemistry, University of California, 9500 Gilman Drive, La Jolla, CA 92093, USA. abatova@ucsd.edu.
Alice L Yu
Mitchell B Diccianni
Emmanuel A Theodorakis
Ayse Batova
University of California, San Diego · USChang Gung Memorial Hospital · TW

Funding

VIRAL MALIGNANCYP30CA023100 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DIANE M SIMEONE · 1985 to 2026
$124.9M
Chemical Biology of Caged Garcinia XanthonesR01CA133002 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI THEODORAKIS, EMMANUEL A · 2008 to 2012
$1.3M
NCI NIH HHS CA 133002NCI NIH HHS P30 CA023100
6 · The paper itself

Abstract

Renal cell carcinoma (RCC), the most common malignancy of the kidney, is refractory to standard therapy and has an incidence that continues to rise. Screening of plant extracts in search of new agents to treat RCC resulted in the discovery of englerin A (EA), a natural product exhibiting potent selective cytotoxicity against renal cancer cells. Despite the establishment of synthetic routes to the synthesis of EA, very little is known about its mechanism of action. The results of the current study demonstrate for the first time that EA induces apoptosis in A498 renal cancer cells in addition to necrosis. The induction of apoptosis by EA required at least 24 h and was caspase independent. In addition, EA induced increased levels of autophagic vesicles in A498 cells which could be inhibited by nonessential amino acids (NEAA), known inhibitors of autophagy. Interestingly, inhibition of autophagy by NEAA did not diminish cell death suggesting that autophagy is not a cell death mechanism and likely represents a cell survival mechanism which ultimately fails. Apart from cell death, our results demonstrated that cells treated with EA accumulated in the G2 phase of the cell cycle indicating a block in G2/M transition. Moreover, our results determined that EA inhibited the activation of both AKT and ERK, kinases which are activated in cancer and implicated in unrestricted cell proliferation and induction of autophagy. The phosphorylation status of the cellular energy sensor, AMPK, appeared unaffected by EA. The high renal cancer selectivity of EA combined with its ability to induce multiple mechanisms of cell death while inhibiting pathways driving cell proliferation, suggest that EA is a highly unique agent with great potential as a therapeutic lead for the treatment of RCC.

Indexed as

Antineoplastic Agents, PhytogenicApoptosisAutophagyCell DeathCell Line, TumorCell ProliferationHumansKidney NeoplasmsPhosphorylationSesquiterpenes, GuaianeAntineoplastic Agents, Phytogenicenglerin ASesquiterpenes, Guaiane

Identifiers

PMID23958461
PMCPMC3765946
OpenAlexW2115782001

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.