Evidence map›Paper›PMID 18196567›Full record

ArticleThe Prostate2008

Antisense MDM2 enhances the response of androgen insensitive human prostate cancer cells to androgen deprivation in vitro and in vivo.

Zhaomei Mu, Paul Hachem, Harvey Hensley, Radka Stoyanova, Hae Won Kwon, Alexandra L Hanlon, Sudhir Agrawal, Alan Pollack

Open access · greenAbstract read
In one paragraph

Article in The Prostate, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 31 citations in OpenAlex.

  1. MDM2 and Ki-67 predict for distant metastasis and mortality in men treated with radiotherapy and androgen deprivation for prostate cancer: RTOG 92-02.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2009
    Trial
  2. METTL3-mediated mCellular & molecular biology letters · 2024
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. EZH2 knockdown suppresses the growth and invasion of human inflammatory breast cancer cells.Journal of experimental & clinical cancer research : CR · 2013
    Article
  9. Article
  10. Article
  11. Recent advances in validating MDM2 as a cancer target.Anti-cancer agents in medicinal chemistry · 2009
    Review
  12. 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

8 authors at 3 institutions in 1 country.

Zhaomei MuDepartment of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA.
Paul Hachem
Harvey Hensley
Radka Stoyanova
Hae Won Kwon
Alexandra L Hanlon
Sudhir Agrawal
Alan Pollack
Fox Chase Cancer Center · USIdera Pharmaceuticals (United States) · USTemple University · US

Funding

WORD PROCESSING CENTER--COREP30CA006927 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Margaret von Mehren · 1985 to 2026
$138.8M
Radiation, Hormones &Antisense Prostate Cancer TherapyR01CA101984 · NCI · FOX CHASE CANCER CENTER · PI POLLACK, ALAN · 2003 to 2007
$2.7M
NCI NIH HHS CA-006927NCI NIH HHS CA 101984-01NCI NIH HHS P30 CA006927NCI NIH HHS R01 CA101984
6 · The paper itself

Abstract

backgroundAntisense MDM2 oligonucleotide (AS-MDM2) sensitizes androgen sensitive LNCaP cells to androgen deprivation (AD) in vitro and in vivo. In this study, we investigated the effects of AS-MDM2 combined with AD on androgen resistant LNCaP (LNCaP-Res) and moderately androgen resistant bcl-2 overexpressing LNCaP (LNCaP-BST) cells.

methodsThe LNCaP-Res cell line was generated by culturing LNCaP cells in medium containing charcoal-stripped serum for more than 1 year. Apoptosis was quantified in vitro by Annexin V staining and caspase 3 + 7 activity. For the in vivo studies, orthotopic tumor growth was monitored by magnetic resonance imaging (MRI). AS-MDM2 and the mismatch control were given by i.p. injection at doses of 25 mg/kg per day, 5 days/week for 15 days.

resultsLNCaP-Res cells expressed high levels of androgen receptor (AR) and bcl-2, and displayed no growth inhibition to AD. AS-MDM2 caused significant reductions in MDM2 and AR expression, and increases in p53 and p21 expression in both cell lines. AS-MDM2 + AD resulted in the highest levels of apoptosis in vitro and tumor growth inhibition in vivo in both cell lines; although, these effects were less pronounced in LNCaP-BST cells.

conclusionsAS-MDM2 + AD enhanced apoptotic cell death in vitro and tumor growth inhibition in vivo in androgen resistant cell lines. The action of AS-MDM2 + AD was influenced somewhat by bcl-2 expression as an isolated change (LNCaP-BST cells), but not when accompanied by other molecular changes associated with androgen insensitivity (LNCaP-Res cells). MDM2 knockdown has promise for the treatment of men with early hormone refractory disease.

Indexed as

Androgen AntagonistsAnimalsApoptosisCell Line, TumorCell ProliferationHumansMaleMiceMice, Inbred BALB CMice, NudeOligodeoxyribonucleotides, AntisenseOrchiectomyProstatic NeoplasmsProto-Oncogene Proteins c-mdm2Proto-Oncogene Proteins p21(ras)Receptors, AndrogenAndrogen AntagonistsMDM2 protein, humanOligodeoxyribonucleotides, AntisenseProto-Oncogene Proteins c-mdm2Proto-Oncogene Proteins p21(ras)Receptors, AndrogenTumor Suppressor Protein p53

Identifiers

PMID18196567
PMCPMC2763092
OpenAlexW2046250359

What OpenQuestion holds

Textmetadata
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.