Evidence map›Paper›PMID 18566329›Full record

ArticleBlood2008

Gossypol, a BH3 mimetic, induces apoptosis in chronic lymphocytic leukemia cells.

Kumudha Balakrishnan, William G Wierda, Michael J Keating, Varsha Gandhi

Open access · greenAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

45 citing papers in PubMed, 132 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Article
  6. Systematic Review of Gossypol/AT-101 in Cancer Clinical Trials.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Autophagy in Cancer Therapy.Frontiers in oncology · 2017
    Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Review
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Kumudha BalakrishnanDepartment of Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
William G Wierda
Michael J Keating
Varsha Gandhi
The University of Texas MD Anderson Cancer Center · US

Funding

Tissue CoreP01CA081534 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI KIPPS, THOMAS J · 2000 to 2016
$59.5M
BIOCHEMICAL STRATEGIES TO INCREASE LEUKEMIA RESPONSER01CA057629 · NCI · UNIVERSITY OF TEXAS MD ANDERSON CAN CTR · PI GANDHI, VARSHA · 1992 to 2005
$1.5M
Novel pharmacologic agents in CLLP20CA081534 · NCI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI KIPPS, THOMAS J. · 1999 to 1999
–
NCI NIH HHS CA57629NCI NIH HHS CA81534NCI NIH HHS P01 CA081534NCI NIH HHS R01 CA057629PHS HHS P30-16672
6 · The paper itself

Abstract

Gossypol, a cottonseed extract derivative, acts as a BH3-mimetic, binding to the BH3 pocket of antiapoptotic proteins and displacing pro-death partners to induce apoptosis. However, knowledge on the molecular underpinnings of its downstream effects is limited. Since chronic lymphocytic leukemia (CLL) cells express high levels of antiapoptotic proteins that act as a survival mechanism for these replicationally quiescent lymphocytes, we investigated whether gossypol induces apoptosis in these cells and what mechanism underlies gossypol-mediated cytotoxicity. Gossypol induced cell death in a concentration- and time-dependent manner; 24-hour incubation with 30 microM gossypol resulted in 50% cell death (median; range, 10%-80%; n = 47) that was not abrogated by pan-specific caspase inhibitor. Starting at 4 hours, the mitochondrial outer membrane was significantly permeabilized (median, 77%; range, 54%-93%; n = 15). Mitochondrial outer membrane permeabiliztaion (MOMP) was concurrent with increased production of reactive oxygen species (ROS); however, antioxidants did not abrogate gossypol-induced cell death. Mitochondrial membrane permeabilization was also associated with loss of intracellular adenosine triphosphate (ATP), activation of BAX, and release of cytochrome c and apoptosis-inducing factor (AIF), which was translocated to the nucleus. Blocking AIF translocation resulted in a decreased apoptosis, suggesting that AIF contributes to gossypol-mediated cytotoxicity in CLL lymphocytes.

Indexed as

AcetylcysteineAdenosine TriphosphateAmino Acid Chloromethyl KetonesAntioxidantsApoptosisApoptosis Inducing Factorbcl-2-Associated X ProteinBH3 Interacting Domain Death Agonist ProteinBiological Transport, ActiveCalpainCaspase InhibitorsCaspasesCysteine Proteinase InhibitorsDipeptidesGossypolHumansAcetylcysteineAdenosine TriphosphateAIFM1 protein, humanAmino Acid Chloromethyl KetonesAntioxidantsApoptosis Inducing FactorBAX protein, humanbcl-2-Associated X Proteinbenzyloxycarbonylvalyl-alanyl-aspartyl fluoromethyl ketoneBH3 Interacting Domain Death Agonist ProteinBID protein, humanCalpaincalpeptinCaspase InhibitorsCaspasesCysteine Proteinase InhibitorsDipeptidesGossypolReactive Oxygen SpeciesSuperoxides

Identifiers

PMID18566329
PMCPMC2518898
OpenAlexW2016677282

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.