Evidence map›Paper›PMID 24258347›Full record

ArticleMolecular cancer therapeutics2014

A naturally derived small molecule disrupts ligand-dependent and ligand-independent androgen receptor signaling in human prostate cancer cells.

Karishma S Amin, Shankar Jagadeesh, Gakul Baishya, Paruchuri G Rao, Nabin C Barua, Samir Bhattacharya, Partha P Banerjee

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Curry Leaf Triggers Cell Death ofPathogens (Basel, Switzerland) · 2021
    Article
  3. Nutritive Importance and Therapeutics Uses of Three Different Varieties (Evidence-based complementary and alternative medicine : eCAM · 2021
    Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Androgen action in prostate function and disease.American journal of clinical and experimental urology · 2018
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. 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 3 institutions in 2 countries.

Karishma S AminCorresponding Author: Partha P. Banerjee, Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, 3900 Reservoir Road, NW, Washington, DC 20057. ppb@georgetown.edu.
Shankar Jagadeesh
Gakul Baishya
Paruchuri G Rao
Nabin C Barua
Samir Bhattacharya
Partha P Banerjee
Georgetown University Medical Center · USVisva-Bharati University · INGeorgetown University · US

Funding

Tissue Culture Shared ResourceP30CA051008 · NCI · GEORGETOWN UNIVERSITY · PI STEPHEN W BYERS · 1990 to 2026
$71.5M
Prevention of prostate cancer growth by a plant alkaloidR01CA131123 · NCI · GEORGETOWN UNIVERSITY · PI BANERJEE, PARTHA P · 2009 to 2013
$1.6M
NCI NIH HHS P30 CA051008NCI NIH HHS R01 CA131123NCI NIH HHS R01CA131123
6 · The paper itself

Abstract

Continued reliance on androgen receptor (AR) signaling is a hallmark of prostate cancer, including the development of castration-resistant prostate cancer (CRPC), making it an attractive therapeutic target for prostate cancer treatment. Mahanine is a novel carbazole alkaloid derived from the leaves of Murraya koenigii, commonly known as the curry leaf plant, which grows widely across East-Asia. We show here that mahanine possesses the ability to inhibit ligand-dependent and -independent AR transactivation, leading to a prominent decline in AR target gene expression. Mahanine treatment causes a time- and dose-dependent decline in AR protein levels, including truncated AR splice variants, in a panel of androgen-responsive and -independent prostate cancer cells. The decrease in AR levels induced by mahanine occurs posttranslationally by proteasomal degradation, without any change in the AR gene expression. Mahanine treatment induces an outward movement of the AR from the nucleus to the cytoplasm, leading to an initial increase in cytoplasmic AR levels, followed by a gradual decline in the AR levels in both cellular compartments. Ligand-induced AR phosphorylation at Ser-81, a phospho-site associated with prostate cancer cell growth and AR transactivity, is greatly diminished in the presence of mahanine. The decline in AR phosphorylation at Ser-81 by mahanine occurs via the inactivation of mitotic kinase CDK1. Collectively, our data demonstrate that mahanine strongly disrupts AR signaling and inhibits the growth of androgen-dependent and -independent prostate cancer cells, thereby implicating a therapeutic role of mahanine in prostate cancer treatment.

Indexed as

AndrogensBlotting, WesternCarbazolesCDC2 Protein KinaseCytoplasmDihydrotestosteroneDose-Response Relationship, DrugGene Expression Regulation, NeoplasticHumansLigandsMaleMicroscopy, FluorescenceMolecular StructureMurrayaPhosphorylationPlant LeavesAndrogensAR protein, humanCarbazolesCDC2 Protein KinaseDihydrotestosteroneLigandsmahanineProteasome Endopeptidase ComplexReceptors, AndrogenSerine

Identifiers

PMID24258347
PMCPMC3945679
OpenAlexW2104187864

What OpenQuestion holds

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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.