Evidence map›Paper›PMID 23179315›Full record

ArticleJournal of natural medicines2013

The phytoalexin camalexin mediates cytotoxicity towards aggressive prostate cancer cells via reactive oxygen species.

Basil A Smith, Corey L Neal, Mahandranauth Chetram, BaoHan Vo, Roman Mezencev, Cimona Hinton, Valerie A Odero-Marah

Abstract read
In one paragraph

Article in Journal of natural medicines, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

10 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Mini-review:Computational and structural biotechnology journal · 2017
    Review
  8. Antiproliferative Effect of Indole Phytoalexins.Molecules (Basel, Switzerland) · 2016
    Review
  9. Article
  10. 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

7 authors at 2 institutions in 1 country.

Basil A SmithThe Department of Biological Sciences, Center for Cancer Research and Therapeutic Development, Clark Atlanta University, 223 James P. Brawley Drive SW, Atlanta, GA 30314, USA.
Corey L Neal
Mahandranauth Chetram
BaoHan Vo
Roman Mezencev
Cimona Hinton
Valerie A Odero-Marah
Clark Atlanta University · USGeorgia Institute of Technology · US

Funding

THEORY OF PLANNED BEHAVIOR VS ETHNICITY /PHYSICAL ACTIVIG12RR003062 · NCRR · CLARK ATLANTA UNIVERSITY · PI BROWN, CARLTON B · 1985 to 2011
$15.5M
TRAINNING COREP20MD002285 · NIMHD · CLARK ATLANTA UNIVERSITY · PI CHAUDHARY, JAIDEEP · 2007 to 2016
$10.9M
Technologies/Resources for Core LaboratoriesG12MD007590 · NIMHD · CLARK ATLANTA UNIVERSITY · PI KHAN, SHAFIQ A · 2012 to 2018
$7.6M
The Regulatory Role of PTEN on CXCR4-mediated Metastasis in Prostate Cancer CellsF31CA153908 · NCI · CLARK ATLANTA UNIVERSITY · PI CHETRAM, MAHANDRANAUTH ANAND · 2011 to 2011
$29k
NCI NIH HHS F31 CA153908NCRR NIH HHS G12 RR003062NIMHD NIH HHS 5P20MD002285NIMHD NIH HHS 8G12MD007590-26NIMHD NIH HHS G12 MD007590NIMHD NIH HHS P20 MD002285
6 · The paper itself

Abstract

Camalexin is a phytoalexin that accumulates in various cruciferous plants upon exposure to environmental stress and plant pathogens. Besides moderate antibacterial and antifungal activity, camalexin was reported to also exhibit antiproliferative and cancer chemopreventive effects in breast cancer and leukemia. We studied the cytotoxic effects of camalexin treatment on prostate cancer cell lines and whether this was mediated by reactive oxygen species (ROS) generation. As models, we utilized LNCaP and its aggressive subline, C4-2, as well as ARCaP cells stably transfected with empty vector (Neo) control or constitutively active Snail cDNA that represents an epithelial to mesenchymal transition (EMT) model and displays increased cell migration and tumorigenicity. We confirmed previous studies showing that C4-2 and ARCaP-Snail cells express more ROS than LNCaP and ARCaP-Neo, respectively. Camalexin increased ROS, decreased cell proliferation, and increased apoptosis more significantly in C4-2 and ARCaP-Snail cells as compared to LNCaP and ARCaP-Neo cells, respectively, while normal prostate epithelial cells (PrEC) were unaffected. Increased caspase-3/7 activity and increased cleaved PARP protein shown by Western blot analysis was suggestive of increased apoptosis. The ROS scavenger N-acetyl cysteine (NAC) antagonized the effects of camalexin, whereas the addition of exogenous hydrogen peroxide potentiated the effects of camalexin, showing that camalexin is mediating its effects through ROS. In conclusion, camalexin is more potent in aggressive prostate cancer cells that express high ROS levels, and this phytoalexin has a strong potential as a novel therapeutic agent for the treatment of especially metastatic prostate cancer.

Indexed as

Antineoplastic Agents, PhytogenicAntioxidantsApoptosisCaspase 3Caspase 7Cell Line, TumorCell MovementCell ProliferationCell SurvivalDose-Response Relationship, DrugEpithelial-Mesenchymal TransitionHumansIndolesMaleNeoplasm InvasivenessOxidative StressAntineoplastic Agents, PhytogenicAntioxidantscamalexinCASP3 protein, humanCASP7 protein, humanCaspase 3Caspase 7IndolesPhytoalexinsPoly(ADP-ribose) PolymerasesReactive Oxygen SpeciesSesquiterpenesSnail Family Transcription FactorsThiazolesTranscription Factors

Identifiers

PMID23179315
PMCPMC3644009
OpenAlexW1967567353

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.