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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2008-10-15
pubmed:abstractText
Angioimmunoblastic T-cell lymphoma (AILT) and peripheral T-cell lymphoma, unspecified (PTCL-u) are relatively frequent subtypes of T- or natural killer cell lymphoma. To characterize the structural anomalies of chromosomes associated with these disorders, we here determined chromosome copy number alterations (CNAs) and loss of heterozygosity (LOH) at >55,000 single nucleotide polymorphism loci for clinical specimens of AILT (n=40) or PTCL-u (n=33). Recurrent copy number gain common to both conditions was detected on chromosomes 8, 9 and 19, whereas common LOH was most frequent for a region of chromosome 2. AILT- or PTCL-u-specific CNAs or LOH were also identified at 21 regions, some spanning only a few hundred base pairs. We also identified prognosis-related CNAs or LOH by several approaches, including Cox's proportional hazard analysis. Among the genes that mapped to such loci, a poor prognosis was linked to overexpression of CARMA1 at 7p22 and of MYCBP2 at 13q22, with both genes being localized within regions of frequent copy number gain. For a frequent LOH region at 2q34, we also identified IKAROS family zinc-finger 2 cDNAs encoding truncated proteins. Our data indicate that AILT and PTCL-u consist of heterogeneous subgroups with distinct transforming genetic alterations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1476-5551
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1891-8
pubmed:meshHeading
pubmed-meshheading:18633432-Adult, pubmed-meshheading:18633432-Aged, pubmed-meshheading:18633432-Aged, 80 and over, pubmed-meshheading:18633432-CARD Signaling Adaptor Proteins, pubmed-meshheading:18633432-Chromosome Aberrations, pubmed-meshheading:18633432-DNA-Binding Proteins, pubmed-meshheading:18633432-Female, pubmed-meshheading:18633432-Guanylate Cyclase, pubmed-meshheading:18633432-Humans, pubmed-meshheading:18633432-Ikaros Transcription Factor, pubmed-meshheading:18633432-Loss of Heterozygosity, pubmed-meshheading:18633432-Lymphoma, T-Cell, pubmed-meshheading:18633432-Lymphoma, T-Cell, Peripheral, pubmed-meshheading:18633432-Male, pubmed-meshheading:18633432-Middle Aged, pubmed-meshheading:18633432-Neprilysin, pubmed-meshheading:18633432-Oligonucleotide Array Sequence Analysis, pubmed-meshheading:18633432-Polymorphism, Single Nucleotide, pubmed-meshheading:18633432-Prognosis, pubmed-meshheading:18633432-Transcription Factors
pubmed:year
2008
pubmed:articleTitle
High-resolution analysis of chromosome copy number alterations in angioimmunoblastic T-cell lymphoma and peripheral T-cell lymphoma, unspecified, with single nucleotide polymorphism-typing microarrays.
pubmed:affiliation
Division of Functional Genomics, Jichi Medical University, Tochigi, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't