Evidence map›Paper›PMID 24452318›Full record

ArticleCardiovascular and interventional radiology2014

Role for putative hepatocellular carcinoma stem cell subpopulations in biological response to incomplete thermal ablation: in vitro and in vivo pilot study.

Scott M Thompson, Matthew R Callstrom, Kim A Butters, Shari L Sutor, Bruce Knudsen, Joseph P Grande, Lewis R Roberts, David A Woodrum

Open access · greenAbstract read
In one paragraph

Article in Cardiovascular and interventional radiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

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  6. Heat stress induced, ligand-independent MET and EGFR signalling in hepatocellular carcinoma.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2018
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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

8 authors at 2 institutions in 1 country.

Scott M ThompsonMedical Scientist Training Program, College of Medicine, Mayo Clinic, 200 First Street Southwest, Rochester, MN, 55905, USA, thompson.scott@mayo.edu.
Matthew R Callstrom
Kim A Butters
Shari L Sutor
Bruce Knudsen
Joseph P Grande
Lewis R Roberts
David A Woodrum
Mayo Clinic · USWinnMed · US

Funding

EXTRAMURAL RES FACIL IMPROVEMENT PROG: POLYCYSTIC KIDNEY DISEASE, RENAL STUDIES,C06RR018898 · NCRR · MAYO CLINIC · PI BURNETT, JOHN C · 2004 to 2004
$2.3M
Mayo Clinic Center for Translational Science ActivitiesTL1TR000137 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$2.1M
NCATS NIH HHS TL1 TR000137NCRR NIH HHS C06 RR018898
6 · The paper itself

Abstract

purposeTo investigate the potential role for CD44(+) and CD90(+) hepatocellular carcinoma (HCC) cellular subpopulations in biological response to thermal ablation-induced heat stress.

methodsThis study was approved by the institutional animal care committee. The N1S1 rat HCC cell line was subjected to sublethal heat stress (45 °C) or control (37 °C) for 10 min, costained with fluorescent-labeled antibodies against CD44, CD90, and 7-AAD after a 48-h recovery and analyzed by flow cytometry to assess the percentage of live CD44(+) and CD90(+) HCC cells (n = 4). Experiments were repeated with pretreatment of N1S1 cells with a dose titration of the dual PI3K-mTOR inhibitor BEZ235 or vehicle control (n = 3). Rats bearing orthotopic N1S1 tumors were subjected to ultrasound-guided partial laser ablation (n = 5) or sham ablation (n = 3), euthanized 24 h after ablation, and liver/tumor analyzed for immunohistochemical staining of CD44 and CD90. Differences between groups were compared with an unpaired t test.

resultsSublethal heat stress induced a significant increase in the relative proportion of live CD44(+) and CD90(+) HCC cells compared to the control group: CD44(+)CD90(-) (5.3-fold; p = 0.0001), CD44(-)CD90(+) (2.4-fold; p = 0.003), and CD44(+)CD90(+) (22.0-fold; p < 0.03). Inhibition of PI3K-mTOR prevented heat stress-induced enrichment of the population of live CD44(+) HCC cells (p < 0.01), but not CD90(+) cells (p > 0.10). Immunohistochemical analysis demonstrated preferential localization of clusters of CD44(+) cells at both the tumor margin and ablation margin.

conclusionThese studies provide experimental evidence supporting a role for HCC cells expressing the putative stem cell marker CD44 in HCC response to heat stress.

Indexed as

Hot TemperatureAnimalsBiomarkers, TumorCarcinoma, HepatocellularCell Line, TumorDisease Models, AnimalFlow CytometryIn Vitro TechniquesLaser TherapyLiver Neoplasms, ExperimentalPilot ProjectsRatsStem CellsBiomarkers, Tumor

Identifiers

PMID24452318
PMCPMC4108574
OpenAlexW2052883372

What OpenQuestion holds

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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.