Evidence map›Paper›PMID 20204287›Full record

ArticleOncology reports2010

Radiosensitivity profiles from a panel of ovarian cancer cell lines exhibiting genetic alterations in p53 and disparate DNA-dependent protein kinase activities.

Gregory T Langland, Steven M Yannone, Rachel A Langland, Aki Nakao, Yinghui Guan, Sydney B T Long, Lien Vonguyen, David J Chen, Joe W Gray, Fanqing Chen

Open access · bronzeAbstract read
In one paragraph

Article in Oncology reports, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

17 citing papers in PubMed, 22 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

10 authors at 1 institution in 1 country.

Gregory T LanglandLife Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. glangland@delmar.edu
Steven M Yannone
Rachel A Langland
Aki Nakao
Yinghui Guan
Sydney B T Long
Lien Vonguyen
David J Chen
Joe W Gray
Fanqing Chen
Lawrence Berkeley National Laboratory · US

Funding

Systems-Based Predictions of Responses to Cancer TherapyU54CA112970 · NCI · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI SPELLMAN, PAUL T. · 2004 to 2014
$27.1M
Function domains of Ku proteins as molecular targetsR21CA095393 · NCI · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI CHEN, FANQING · 2002 to 2003
$324k
Radiation-induced phosphorylation of DNA-PK at 2638/47F32GM071229 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI LANGLAND, GREGORY T · 2004 to 2005
$72k
NCI NIH HHS BC045345NCI NIH HHS BC061995NCI NIH HHS P50CA112970NCI NIH HHS R1CA95393-01NCI NIH HHS R21 CA095393NCI NIH HHS U54 CA112970NIGMS NIH HHS 1F32GM071229-01NIGMS NIH HHS F32 GM071229
6 · The paper itself

Abstract

The variability of radiation responses in ovarian tumors and tumor-derived cell lines is poorly understood. Since both DNA repair capacity and p53 status can significantly alter radiation sensitivity, we evaluated these factors along with radiation sensitivity in a panel of sporadic human ovarian carcinoma cell lines. We observed a gradation of radiation sensitivity among these sixteen lines, with a five-fold difference in the LD50 between the most radiosensitive and the most radioresistant cells. The DNA-dependent protein kinase (DNA-PK) is essential for the repair of radiation induced DNA double-strand breaks in human somatic cells. Therefore, we measured gene copy number, expression levels, protein abundance, genomic copy and kinase activity for DNA-PK in all of our cell lines. While there were detectable differences in DNA-PK between the cell lines, there was no clear correlation with any of these differences and radiation sensitivity. In contrast, p53 function as determined by two independent methods, correlated well with radiation sensitivity, indicating p53 mutant ovarian cancer cells are typically radioresistant relative to p53 wild-type lines. These data suggest that the activity of regulatory molecules such as p53 may be better indicators of radiation sensitivity than DNA repair enzymes such as DNA-PK in ovarian cancer.

Indexed as

Cell Line, TumorDNA-Activated Protein KinaseElectrophoresis, Polyacrylamide GelFemaleGene DosageGene Expression ProfilingGenes, p53HumansNeoplasms, Glandular and EpithelialOligonucleotide Array Sequence AnalysisOvarian NeoplasmsRadiation ToleranceDNA-Activated Protein Kinase

Identifiers

PMID20204287
PMCPMC2909445
OpenAlexW2079435703

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.