Evidence map›Paper›PMID 18451249›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2008

Treatment of radioresistant stem-like esophageal cancer cells by an apoptotic gene-armed, telomerase-specific oncolytic adenovirus.

Xiaochun Zhang, Ritsuko Komaki, Li Wang, Bingliang Fang, Joe Y Chang

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
9.4field-weighted citation impact, top 2% 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

54 citing papers in PubMed, 1 synthesis or guideline pooled it, 98 citations in OpenAlex.

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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

5 authors at 3 institutions in 1 country.

Xiaochun ZhangDepartment of Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA.
Ritsuko Komaki
Li Wang
Bingliang Fang
Joe Y Chang
Molecular Oncology (United States) · USThe University of Texas MD Anderson Cancer Center · USCancer Support Community · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
UNIVERSITY OF TEXAS--SPORE IN LUNG CANCERP50CA070907 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI GIBBONS, DON LYNN · 1996 to 2024
$57.4M
Oncolytic adenovector-mediated TRAIL gene therapy for cancersR01CA092487 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI FANG, BINGLIANG · 2002 to 2011
$2.4M
Expression of Proapoptotic Genes for Cancer TherapyR01CA098582 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI FANG, BINGLIANG · 2003 to 2006
$1.3M
NCI NIH HHS CA16672NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA070907NCI NIH HHS R01 CA092487NCI NIH HHS R01 CA098582
6 · The paper itself

Abstract

purposeRadioresistance may be caused by cancer stem cells (CSC). Because CSCs require telomerase to proliferate, a telomerase-specific oncolytic adenoviral vector carrying apoptotic tumor necrosis factor-related apoptosis-inducing ligand and E1A gene (Ad/TRAIL-E1) may preferentially target CSCs. EXPERIMENTAL

designWe established two pairs of parental and radioresistant (R) esophageal carcinoma cell lines (Seg-1, Seg-1R and TE-2, TE-2R) by fractionated irradiation. Stem cell markers were measured by Western blotting and flow cytometry. Serial sorting was used to enrich stem-like side population cells. Telomerase activity, transgene expression, antitumor activity, apoptosis induction, and viral replication were determined in vitro and/or in vivo.

resultsExpression of the stem cell markers beta-catenin, Oct3/4, and beta(1) integrin in Seg-1R cells was 29.4%, 27.5%, and 97.3%, respectively, compared with 4.8%, 14.9%, and 45.3% in Seg-1 cells (P < 0.05). SP levels in Seg-1R and TE-2R cells were 14.6% and 2.7%, respectively, compared with 3.4% and 0.3% in Seg-1 and TE-2 cells. Serial sorting of Seg-1R SP cells showed enrichment of the SP cells. Telomerase activities in Seg-1R, Seg-1R SP, and TE-2R cells were significantly higher than in Seg-1, Seg-1R non-SP, and TE-2 cells, respectively (P < 0.05). Seg-1R and TE-2R cells were more sensitive to Ad/TRAIL-E1 than parental cells. Increased Coxsackie-adenovirus receptor and elevated transgene expressions were found in the radioresistant cells. Ad/TRAIL-E1 resulted in significant tumor growth suppression and longer survival in Seg-1R-bearing mice (P < 0.05) with no significant toxicity.

conclusionRadioresistant cells established by fractionated irradiation display CSC-like cell properties. Ad/TRAIL-E1 preferentially targets radioresistant CSC-like cells.

Indexed as

AdenoviridaeAdenovirus E1A ProteinsAnimalsApoptosisbeta CateninCell Line, TumorEsophageal NeoplasmsFemaleGenetic TherapyGenetic VectorsHumansIntegrin beta ChainsMiceNeoplastic Stem CellsOctamer Transcription Factor-3Oncolytic VirotherapyAdenovirus E1A Proteinsbeta CateninIntegrin beta ChainsOctamer Transcription Factor-3TelomeraseTNF-Related Apoptosis-Inducing Ligand

Identifiers

PMID18451249
PMCPMC2387204
OpenAlexW1996400631

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.