Evidence map›Paper›PMID 16699594›Full record

ArticlePLoS computational biology2006

Inferring loss-of-heterozygosity from unpaired tumors using high-density oligonucleotide SNP arrays.

Rameen Beroukhim, Ming Lin, Yuhyun Park, Ke Hao, Xiaojun Zhao, Levi A Garraway, Edward A Fox, Ephraim P Hochberg, Ingo K Mellinghoff, Matthias D Hofer and 6 more

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
9.6field-weighted citation impact, top 1% 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

73 citing papers in PubMed, 159 citations in OpenAlex.

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  12. Emerging technologies in paediatric leukaemia.Translational pediatrics · 2015
    Review
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  19. Profiles of genomic instability in high-grade serous ovarian cancer predict treatment outcome.Clinical cancer research : an official journal of the American Association for Cancer Research · 2012
    Article
  20. Article

13 more citing papers are in PubMed but not listed here.

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

16 authors at 6 institutions in 1 country.

Rameen BeroukhimDepartment of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.
Ming Lin
Yuhyun Park
Ke Hao
Xiaojun Zhao
Levi A Garraway
Edward A Fox
Ephraim P Hochberg
Ingo K Mellinghoff
Matthias D Hofer
Aurelien Descazeaud
Mark A Rubin
Matthew Meyerson
Wing Hung Wong
William R Sellers
Cheng Li
Brigham and Women's Hospital · USHarvard University · USBroad Institute · USDana-Farber Cancer Institute · USStanford University · USUniversity of California, Los Angeles · US

Funding

Physician Scientist Training in Cancer ResearchT32CA009172 · NCI · DANA-FARBER CANCER INSTITUTE · PI Jennifer R Brown, James A. DeCaprio · 1985 to 2026
$17.1M
NKX2-1, A Candidate Lineage Survival Oncogene in Lung AdenocarcinomaR01CA109038 · NCI · DANA-FARBER CANCER INSTITUTE · PI MEYERSON, MATTHEW L. · 2005 to 2014
$3.8M
ANALYSIS OF OLIGONUCLEOTIDE GENE EXPRESSION ARRAY DATAR01HG002341 · NHGRI · STANFORD UNIVERSITY · PI WONG, WING H. · 2000 to 2005
$2.6M
Center for Computational Study of Biological SystemsP20CA096470 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI LIU, JUN S · 2002 to 2004
$2.1M
NCI NIH HHS P20 CA096470NCI NIH HHS P20-CA96470NCI NIH HHS R01 CA109038NCI NIH HHS R01CA109038NCI NIH HHS T32 CA009172NHGRI NIH HHS 1R01HG02341NHGRI NIH HHS R01 HG002341PHS HHS P501062003
6 · The paper itself

Abstract

Loss of heterozygosity (LOH) of chromosomal regions bearing tumor suppressors is a key event in the evolution of epithelial and mesenchymal tumors. Identification of these regions usually relies on genotyping tumor and counterpart normal DNA and noting regions where heterozygous alleles in the normal DNA become homozygous in the tumor. However, paired normal samples for tumors and cell lines are often not available. With the advent of oligonucleotide arrays that simultaneously assay thousands of single-nucleotide polymorphism (SNP) markers, genotyping can now be done at high enough resolution to allow identification of LOH events by the absence of heterozygous loci, without comparison to normal controls. Here we describe a hidden Markov model-based method to identify LOH from unpaired tumor samples, taking into account SNP intermarker distances, SNP-specific heterozygosity rates, and the haplotype structure of the human genome. When we applied the method to data genotyped on 100 K arrays, we correctly identified 99% of SNP markers as either retention or loss. We also correctly identified 81% of the regions of LOH, including 98% of regions greater than 3 megabases. By integrating copy number analysis into the method, we were able to distinguish LOH from allelic imbalance. Application of this method to data from a set of prostate samples without paired normals identified known regions of prevalent LOH. We have developed a method for analyzing high-density oligonucleotide SNP array data to accurately identify of regions of LOH and retention in tumors without the need for paired normal samples.

Indexed as

Oligonucleotide Array Sequence AnalysisAllelesChromosomes, Human, YGene DosageHaplotypesHumansLoss of HeterozygosityMaleModels, GeneticPolymorphism, Single NucleotideProbabilityProstatic NeoplasmsSensitivity and Specificity

Identifiers

PMID16699594
PMCPMC1458964
OpenAlexW2122410503

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.