Evidence map›Paper›PMID 24811957›Full record

ArticleMolecular imaging and biology2014

Breast cancer redox heterogeneity detectable with chemical exchange saturation transfer (CEST) MRI.

Kejia Cai, He N Xu, Anup Singh, Lily Moon, Mohammad Haris, Ravinder Reddy, Lin Z Li

Open access · greenAbstract read
In one paragraph

Article in Molecular imaging and biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

22 citing papers in PubMed, 32 citations in OpenAlex.

  1. Trial
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  7. Evaluation of BMagnetic resonance imaging · 2020
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  19. Molecular magnetic resonance imaging in cancer.Journal of translational medicine · 2015
    Review
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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 5 institutions in 3 countries.

Kejia CaiDepartment of Radiology, University of Illinois College of Medicine, Chicago, IL, USA, kcai@uic.edu.
He N Xu
Anup Singh
Lily Moon
Mohammad Haris
Ravinder Reddy
Lin Z Li
University of Pennsylvania · USCalifornia University of Pennsylvania · USIndian Institute of Technology Delhi · INJohnson Foundation · USSidra Medical and Research Center · QA

Funding

UNIVERSITY OF PENNSYLVANIA CAN CTR SUPPORT GRANTP30CA016520 · NCI · UNIVERSITY OF PENNSYLVANIA · PI SHELLEY L BERGER · 1985 to 2026
$222.3M
Training and DisseminationP41EB015893 · NIBIB · UNIVERSITY OF PENNSYLVANIA · PI REDDY, RAVINDER · 2012 to 2019
$11.3M
Penn Small Animal Imaging Resource (Penn-SAIR)U24CA083105 · NCI · UNIVERSITY OF PENNSYLVANIA · PI CHODOSH, LEWIS A, GLICKSON, JERRY D · 2007 to 2011
$2.1M
Imaging Mitochondrial Redox States In Vivo by Hyperpolarized MRR01CA155348 · NCI · UNIVERSITY OF PENNSYLVANIA · PI LI, LIN Z · 2011 to 2015
$1.9M
In Vivo Cerebral Glutamate Mapping in AddictionR21DA032256 · NIDA · UNIVERSITY OF PENNSYLVANIA · PI REDDY, RAVINDER · 2011 to 2012
$400k
NCI NIH HHS 2U24-CA083105NCI NIH HHS P30 CA016520NCI NIH HHS R01 CA155348NCI NIH HHS R01-CA155348NCI NIH HHS U24 CA083105NIBIB NIH HHS P41 EB015893NIDA NIH HHS R21 DA032256NIDA NIH HHS R21-DA032256
6 · The paper itself

Abstract

purposeTissue redox state is an important mediator of various biological processes in health and diseases such as cancer. Previously, we discovered that the mitochondrial redox state of ex vivo tissues detected by redox scanning (an optical imaging method) revealed interesting tumor redox state heterogeneity that could differentiate tumor aggressiveness. Because the noninvasive chemical exchange saturation transfer (CEST) MRI can probe the proton transfer and generate contrasts from endogenous metabolites, we aim to investigate if the in vivo CEST contrast is sensitive to proton transfer of the redox reactions so as to reveal the tissue redox states in breast cancer animal models. PROCEDURES: CEST MRI has been employed to characterize tumor metabolic heterogeneity and correlated with the redox states measured by the redox scanning in two human breast cancer mouse xenograft models, MDA-MB-231 and MCF-7. The possible biological mechanism on the correlation between the two imaging modalities was further investigated by phantom studies where the reductants and the oxidants of the representative redox reactions were measured.

resultsThe CEST contrast is found linearly correlated with NADH concentration and the NADH redox ratio with high statistical significance, where NADH is the reduced form of nicotinamide adenine dinucleotide. The phantom studies showed that the reductants of the redox reactions have more CEST contrast than the corresponding oxidants, indicating that higher CEST effect corresponds to the more reduced redox state.

conclusionsThis preliminary study suggests that CEST MRI, once calibrated, might provide a novel noninvasive imaging surrogate for the tissue redox state and a possible diagnostic biomarker for breast cancer in the clinic.

Indexed as

AnimalsBreast NeoplasmsFemaleHumansMagnetic Resonance ImagingMCF-7 CellsMice, NudeNADOxidation-ReductionNAD

Identifiers

PMID24811957
PMCPMC4251869
OpenAlexW2091524043

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.