Evidence map›Paper›PMID 20860007›Full record

ArticleMagnetic resonance in medicine2010

In vivo observation of intracellular oximetry in perfluorocarbon-labeled glioma cells and chemotherapeutic response in the CNS using fluorine-19 MRI.

Deepak K K Kadayakkara, Jelena M Janjic, Lisa K Pusateri, Won-Bin Young, Eric T Ahrens

Open access · greenAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.7field-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

36 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. A primer onFrontiers in medicine · 2023
    Review
  5. Review
  6. Perfluorocarbons: A perspective of theranostic applications and challenges.Frontiers in bioengineering and biotechnology · 2023
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Perfluorocarbons-BasedInternational journal of nanomedicine · 2020
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review
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

5 authors at 1 institution in 1 country.

Deepak K K KadayakkaraDepartment of Biological Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
Jelena M Janjic
Lisa K Pusateri
Won-Bin Young
Eric T Ahrens
Carnegie Mellon University · US

Funding

PRIMATE RESOURCESP01HD047675 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI SCHATTEN, GERALD · 2005 to 2010
$15.5M
A MULTIDISCIPLINARY NMR CENTER FOR BIOMEDICAL RESEARCHP41EB001977 · NIBIB · MELLON PITTS CORPORATION (MPC CORP) · PI HO, CHIEN · 2003 to 2013
$12.5M
CLINICAL TRANSLATION OF 19F MRI TO VISUALIZE CANCER IMMUNOTHERAPEUTIC CELLSR01CA134633 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI AHRENS, ERIC T., COHEN, EZRA · 2009 to 2021
$4.4M
19F MRI PROBES AND AUTOIMMUNE DISEASER01EB003453 · NIBIB · CARNEGIE-MELLON UNIVERSITY · PI AHRENS, ERIC T. · 2005 to 2008
$1.1M
NCI NIH HHS R01 CA134633NCI NIH HHS R01-CA134633NIBIB NIH HHS P41 EB001977NIBIB NIH HHS P41-EB001977NIBIB NIH HHS R01 EB003453NIBIB NIH HHS R01-EB003453NICHD NIH HHS P01 HD047675NICHD NIH HHS P01-HD047675
6 · The paper itself

Abstract

Preclinical development of therapeutic agents against cancer could greatly benefit from noninvasive markers of tumor killing. Potentially, the intracellular partial pressure of oxygen (pO(2) ) can be used as an early marker of antitumor efficacy. Here, the feasibility of measuring intracellular pO(2) of central nervous system glioma cells in vivo using (19) F magnetic resonance techniques is examined. Rat 9L glioma cells were labeled with perfluoro-15-crown-5-ether ex vivo and then implanted into the rat striatum. (19) F MRI was used to visualize tumor location in vivo. The mean (19) F T(1) of the implanted cells was measured using localized, single-voxel spectroscopy. The intracellular pO(2) in tumor cells was determined from an in vitro calibration curve. The basal pO(2) of 9L cells (day 3) was determined to be 45.3 ± 5 mmHg (n = 6). Rats were then treated with a 1 × LD10 dose of bischloroethylnitrosourea intravenously and changes in intracellular pO(2) were monitored. The pO(2) increased significantly (P = 0.042, paired T-test) to 141.8 ± 3 mmHg within 18 h after bischloroethylnitrosourea treatment (day 4) and remained elevated (165 ± 24 mmHg) for at least 72 h (day 6). Intracellular localization of the perfluoro-15-crown-5-ether emulsion in 9L cells before and after bischloroethylnitrosourea treatment was confirmed by histological examination and fluorescence microscopy. Overall, noninvasive (19) F magnetic resonance techniques may provide a valuable preclinical tool for monitoring therapeutic response against central nervous system or other deep-seated tumors.

Indexed as

Fluorine RadioisotopesAnimalsAntineoplastic Agents, AlkylatingBiomarkers, TumorCell Line, TumorFemaleGliomaMagnetic Resonance ImagingOximetryOxygenRadiopharmaceuticalsRatsRats, Inbred F344Staining and LabelingTreatment OutcomeAntineoplastic Agents, AlkylatingBiomarkers, TumorFluorine RadioisotopesOxygenRadiopharmaceuticals

Identifiers

PMID20860007
PMCPMC2965778
OpenAlexW2098219449

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.