Evidence map›Paper›PMID 19336572›Full record

ArticleCancer research2009

Noninvasive detection of lentiviral-mediated choline kinase targeting in a human breast cancer xenograft.

Balaji Krishnamachary, Kristine Glunde, Flonne Wildes, Noriko Mori, Tomoyo Takagi, Venu Raman, Zaver M Bhujwalla

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

40 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Magnetic Resonance Spectroscopy Studies of Mouse Models of Cancer.Methods in molecular biology (Clifton, N.J.) · 2018
    Article
  7. Article
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  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Choline metabolism-based molecular diagnosis of cancer: an update.Expert review of molecular diagnostics · 2015
    Review
  18. Article
  19. Metabolic imaging of pancreatic ductal adenocarcinoma detects altered choline metabolism.Clinical cancer research : an official journal of the American Association for Cancer Research · 2015
    Article
  20. 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.

Balaji KrishnamacharyJohns Hopkins University In Vivo Cellular Molecular Imaging Center Program, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
Kristine Glunde
Flonne Wildes
Noriko Mori
Tomoyo Takagi
Venu Raman
Zaver M Bhujwalla
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Theranostic Imaging of Metastatic Prostate CancerP50CA103175 · NCI · JOHNS HOPKINS UNIVERSITY · PI BARKER, PETER B · 2003 to 2015
$17.9M
NCI NIH HHS P50 CA103175
6 · The paper itself

Abstract

Elevated phosphocholine (PC) and total choline (tCho) metabolites are widely established characteristics of most cancer cells, including breast cancer. Effective silencing of choline kinase (chk), the enzyme that converts choline to PC, is associated with reduced tumor growth. The functional importance and down-regulation of chk using RNA interference has been previously established. Here, we report on the preclinical evaluation of lentiviral vector-mediated down-regulation of chk using short hairpin RNA (shRNA) in established tumors derived from human breast cancer cells. Concentrated lentivirus expressing shRNA against chk was injected i.v. in the tail vein of MDA-MB-231 tumor-bearing female severe combined immunodeficient mice. Transduction efficiency in cells and tumors in vivo was assessed optically by enhanced green fluorescent protein expression and additionally from chk mRNA and protein levels. An 80% reduction in chk mRNA and protein was achieved following approximately 90% transduction efficiency in cells. After transduction with chk-shRNA, (1)H magnetic resonance spectroscopy (MRS) of cell and tumor extracts showed decreases in PC and tCho levels (P < 0.01 and 0.05, respectively) in comparison with controls. PC levels were monitored noninvasively by (31)P MRS in tumors and by (1)H MRS in cell and tumor tissue extracts. Noninvasive (31)P MR spectra of chk-shRNA-transduced tumors in vivo showed lower PC and phosphomonoester levels that were associated with reduced tumor growth and proliferation. This study shows the use of lentiviral vectors to target chk in a human breast cancer xenograft and noninvasive MRS detection of this targeting.

Indexed as

AnimalsBreast NeoplasmsCell Line, TumorCholine KinaseDown-RegulationFemaleGenetic TherapyGenetic VectorsHumansLentivirusMiceMice, SCIDPhosphorylcholineRNA, MessengerRNA, Small InterferingTransduction, GeneticCholine KinasePhosphorylcholineRNA, MessengerRNA, Small Interfering

Identifiers

PMID19336572
PMCPMC2687146
OpenAlexW2049425629

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.