Evidence map›Paper›PMID 21169256›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2010

The oncogenic BRAF kinase inhibitor PLX4032/RG7204 does not affect the viability or function of human lymphocytes across a wide range of concentrations.

Begoña Comin-Anduix, Thinle Chodon, Hooman Sazegar, Douglas Matsunaga, Stephen Mock, Jason Jalil, Helena Escuin-Ordinas, Bartosz Chmielowski, Richard C Koya, Antoni Ribas

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
7.3field-weighted citation impact, top 2% 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

78 citing papers in PubMed, 139 citations in OpenAlex.

  1. Trial
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  8. BRAF Targeting Sensitizes Resistant Melanoma to Cytotoxic T Cells.Clinical cancer research : an official journal of the American Association for Cancer Research · 2019
    Article
  9. Review
  10. Induced cross-resistance of BRAFScientific reports · 2019
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. BRAFBlood advances · 2017
    Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Immunomodulating property of MAPK inhibitors: from translational knowledge to clinical implementation.Laboratory investigation; a journal of technical methods and pathology · 2017
    Review

18 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Begoña Comin-AnduixDepartment of Surgery, Division of Surgical Oncology, Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, California 90095-1782, USA.
Thinle Chodon
Hooman Sazegar
Douglas Matsunaga
Stephen Mock
Jason Jalil
Helena Escuin-Ordinas
Bartosz Chmielowski
Richard C Koya
Antoni Ribas
University of California, Los Angeles · US

Funding

Women's CancersP30CA016042 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Samuel Wheeler French · 1985 to 2026
$134.5M
Virology CoreP30AI028697 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CHEN, IRVIN S.Y. · 1991 to 2018
$39.9M
AFP-Based Immunotherapy for Hepatocellular CarcinomaK23CA093376 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RIBAS, ANTONI · 2002 to 2006
$634k
NCI NIH HHS CA-16042NCI NIH HHS K23 CA093376NCI NIH HHS P30 CA016042NIAID NIH HHS AI-28697NIAID NIH HHS P30 AI028697
6 · The paper itself

Abstract

purposePLX4032 (RG7204), an oncogenic BRAF kinase inhibitor undergoing clinical evaluation, has high response rates in early clinical trials in patients with advanced BRAF(V600E) mutant melanoma. Combining PLX4032 with immunotherapy may allow expanding the durability of responses. The effects of PLX4032 on immune cells were studied to explore the feasibility of future combinatorial approaches with immunotherapy for melanoma. EXPERIMENTAL

designPeripheral blood mononuclear cells (PBMC) and BRAF(V600E) mutant melanoma cells were exposed to increasing concentrations of PLX4032 and the cell viability, proliferation, cell cycle, apoptosis, and phosphorylation of signaling proteins were analyzed. Effects of PLX4032 on antigen-specific T-cell function were analyzed by specific cytokine release and cytotoxicity activity.

resultsThe 50% inhibition concentration (IC(50)) of PLX4032 for resting human PBMC was between 50 and 150 μmol/L compared with an IC(50) below 1 μmol/L for sensitive BRAF(V600E) mutant melanoma cell lines. Activated lymphocytes were even more resistant with no growth inhibition up to concentrations of 250 μmol/L. PLX4032 had a marginal effect on cell-cycle arrest, apoptotic cell changes or alteration of phosphorylated signaling molecules in lymphocytes. Functional analysis of specific antigen recognition showed preserved T-cell function up to 10-μmol/L concentration of PLX4032, whereas the cytotoxic activity of PLX4032 was maintained up to high concentrations of 50 μmol/L.

conclusionsThe preserved viability and function of lymphocytes exposed to high concentrations of PLX4032 suggest that this agent could be a potential candidate for combining with immunotherapy strategies for the treatment of patients with BRAF(V600)(E) mutant melanoma.

Indexed as

Cell ProliferationCells, CulturedCell SurvivalDose-Response Relationship, DrugDrug Evaluation, PreclinicalHumansImmunotherapyIndolesInhibitory Concentration 50K562 CellsLymphocyte CountLymphocytesMelanomaOsmolar ConcentrationProtein Kinase InhibitorsProto-Oncogene Proteins B-rafBRAF protein, humanIndolesProtein Kinase InhibitorsProto-Oncogene Proteins B-rafSulfonamidesVemurafenib

Identifiers

PMID21169256
PMCPMC3057460
OpenAlexW2115975916

What OpenQuestion holds

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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.