Evidence map›Paper›PMID 21796654›Full record

ArticleThe Prostate2012

The curcumin analog ca27 down-regulates androgen receptor through an oxidative stress mediated mechanism in human prostate cancer cells.

Alexandra M Fajardo, Debra A MacKenzie, Ming Ji, Lorraine M Deck, David L Vander Jagt, Todd A Thompson, Marco Bisoffi

Open access · greenAbstract read
In one paragraph

Article in The Prostate, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 23% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Review
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  7. Review
  8. Review
  9. Role of BioResponse 3,3'-Diindolylmethane in the Treatment of Human Prostate Cancer: Clinical Experience.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2016
    Review
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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

7 authors at 2 institutions in 1 country.

Alexandra M FajardoDepartment of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA.
Debra A MacKenzie
Ming Ji
Lorraine M Deck
David L Vander Jagt
Todd A Thompson
Marco Bisoffi
University of New Mexico · USUNM Comprehensive Cancer Center

Funding

ZUNI HEALTH INITIATIVE-PILOT STUDYP20RR016480 · NCRR · NEW MEXICO STATE UNIVERSITY LAS CRUCES · PI ZHANG, PENG F · 2001 to 2011
$33.7M
Tocopherylquinone as a novel chemopreventive agent for prostate cancerR03CA133941 · NCI · UNIVERSITY OF NEW MEXICO · PI THOMPSON, TODD ANTHONY · 2008 to 2010
$225k
Targeting Egr-1 with Curcumin Analogs for Prostate Cancer PreventionR03CA136030 · NCI · UNIVERSITY OF NEW MEXICO · PI BISOFFI, MARCO · 2008 to 2009
$150k
NCI NIH HHS 1 R03 CA133941NCI NIH HHS P30CA118110NCI NIH HHS R03 CA133941NCI NIH HHS R03 CA136030NCRR NIH HHS P20 RR016480NCRR NIH HHS RR0164880
6 · The paper itself

Abstract

backgroundThe androgen receptor (AR) plays a critical role in prostate cancer development and progression. Therefore, the inhibition of AR function is an established therapeutic intervention. Since the expression of the AR is retained and often increased in progressive disease, AR protein down-regulation is a promising therapeutic approach against prostate cancer. We show here that the curcumin analog 27 (ca27) down-regulates AR expression in several prostate cancer cell lines.

methodsca27 at low micromolar concentrations was tested for its effect on AR expression, AR activation, and induction of oxidative stress in human LNCaP, C4-2, and LAPC-4 prostate cancer cells.

resultsca27 induced the down-regulation of AR protein expression in LNCaP, C4-2, and LAPC-4 cells within 12 hr. Further, ca27 led to the rapid induction of reactive oxygen species (ROS). To further support this finding, ca27 treatment led to the activation of the cellular redox sensor NF-E2-related factor 2 (Nrf2) and the induction of the Nrf2-regulated genes NAD(P)H quinone oxidoreductase 1 and aldoketoreductase 1C1. We show that ROS production preceded AR protein loss and that ca27-mediated down-regulation of the AR was attenuated by the antioxidant, N-acetyl cysteine.

conclusionsca27 induces ROS and mediates AR protein down-regulation through an oxidative stress mechanism of action. Our results suggest that ca27 represents a novel agent for the elucidation of mechanisms of AR down-regulation, which could lead to effective new anti-androgenic strategies for the treatment of advanced prostate cancer.

Indexed as

Cell Line, TumorCell ProliferationCell SurvivalCurcuminDown-RegulationHumansMaleOxidative StressProstatic NeoplasmsReactive Oxygen SpeciesReceptors, AndrogenSignal Transduction1,5-bis(2-hydroxyphenyl)-1,4-pentadien-3-oneCurcuminReactive Oxygen SpeciesReceptors, Androgen

Identifiers

PMID21796654
PMCPMC3309160
OpenAlexW2046473901

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.