Evidence map›Paper›PMID 19866475›Full record

ArticleThe Prostate2010

CCL2 is induced by chemotherapy and protects prostate cancer cells from docetaxel-induced cytotoxicity.

David Z Qian, Brooks L S Rademacher, Janet Pittsenbarger, Chung-Ying Huang, Anne Myrthue, Celestia S Higano, Mark Garzotto, Peter S Nelson, Tomasz M Beer

Open access · greenAbstract read
In one paragraph

Article in The Prostate, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
2.6field-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

69 citing papers in PubMed, 112 citations in OpenAlex.

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  4. Menin in Cancer.Genes · 2024
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  6. Targeting CCL2/CCR2 Signaling Overcomes MEK Inhibitor Resistance in Acute Myeloid Leukemia.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
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9 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

9 authors at 4 institutions in 2 countries.

David Z QianDivision of Hematology and Medical Oncology, Oregon Health & Science University, Portland, Oregon 97239, USA.
Brooks L S Rademacher
Janet Pittsenbarger
Chung-Ying Huang
Anne Myrthue
Celestia S Higano
Mark Garzotto
Peter S Nelson
Tomasz M Beer
Oregon Health & Science University · USCape Town HVTN Immunology Laboratory / Hutchinson Centre Research Institute of South Africa · ZAFred Hutch Cancer Center · USUniversity of Washington Medical Center · US

Funding

TRANSCRIPTOME AND PROTEOME STRATIFICATION OF PROSTATE ADENOCARCINOMA PHENOTYPESP50CA097186 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI John Kyung Lee · 2002 to 2026
$58.1M
YOUTH, Osteoporosis, and Understanding Total Health (YOUTH)M01RR000334 · NCRR · OREGON HEALTH & SCIENCE UNIVERSITY · PI DORSA, DANIEL MICHAEL · 1985 to 2006
$30.6M
Tissue and Pathology CoreU54CA126540 · NCI · UNIVERSITY OF WASHINGTON · PI VESSELLA, ROBERT LOUIS · 2006 to 2010
$3.3M
Resistance and Response Mechanisms to Prostate Cancer TherapyR01CA119125 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI BEER, TOMASZ M · 2006 to 2009
$1.3M
NCI NIH HHS 1 R01 CA119125-01NCI NIH HHS CA97186NCI NIH HHS P50 CA097186NCI NIH HHS R01 CA119125NCI NIH HHS U54 CA126540NCI NIH HHS U54CA126540NCRR NIH HHS 3M01RR00334-33S2NCRR NIH HHS M01 RR000334
6 · The paper itself

Abstract

backgroundMetastatic prostate cancer is either inherently resistant to chemotherapy or rapidly acquires this phenotype after chemotherapy exposure. In this study, we identified a docetaxel-induced resistance mechanism centered on CCL2.

methodsWe compared the gene expression profiles in individual human prostate cancer specimens before and after exposure to chemotherapy collected from previously untreated patients who participated in a clinical trial of preoperative chemotherapy. Subsequently, we used the gain- and loss-of-function approach in vitro to identify a potential mechanism underlying chemotherapy resistance.

resultsAmong the molecular signatures associated with treatment, several genes that regulate the inflammatory response and chemokine activity were upregulated including a significant increase in transcripts encoding the CC chemokine CCL2. Docetaxel increased CCL2 expression in prostate cancer cell lines in vitro. CCL2-specific siRNA inhibited LNCaP and LAPC4 cell proliferation and enhanced the growth inhibitory effect of low-dose docetaxel. In contrast, overexpression of CCL2 or recombinant CCL2 protein stimulated prostate cancer cell proliferation and rescued cells from docetaxel-induced cytotoxicity. This protective effect of CCL2 was associated with activation of the ERK/MAP kinase and PI3K/AKT, inhibition of docetaxel-induced Bcl2 phosphorylation at serine 70, phosphorylation of Bad, and activation of caspase-3. The addition of a PI3K/AKT inhibitor Ly294002 reversed the CCL2 protection and was additive to docetaxel-induced toxicity.

conclusionThese results support a mechanism of chemotherapy resistance mediated by cellular stress responses involving the induction of CCL2 expression and suggest that inhibiting CCL2 activity could enhance therapeutic responses to taxane-based therapy.

Indexed as

Antineoplastic AgentsApoptosisCell Line, TumorCell SurvivalChemokine CCL2DocetaxelDrug Resistance, NeoplasmDrug Therapy, CombinationGene ExpressionGene Expression ProfilingGene SilencingHumansMaleMitoxantroneProstatic NeoplasmsRecombinant ProteinsAntineoplastic AgentsCCL2 protein, humanChemokine CCL2DocetaxelMitoxantroneRecombinant ProteinsRNA, MessengerRNA, Small InterferingTaxoids

Identifiers

PMID19866475
PMCPMC2931415
OpenAlexW2077380927

What OpenQuestion holds

Textmetadata
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.