Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2003-12-12
pubmed:abstractText
T(11;18)(q21;q21) results in a chimeric transcript between API2 at 11q21 and MALT1 at 18q21 and is a characteristic chromosomal aberration of extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma). API2-MALT1 chimeric transcripts are present in approximately one-third of all cases of MALT lymphoma. MALT lymphoma is also known to have variations in histological features and tumor cell proportions. Real-time polymerase chain reaction (PCR) was used to examine number of API2-MALT1 copies in clinical samples for further investigation of the pathophysiology of MALT lymphoma. A total of 13 samples of MALT lymphoma contained API2-MALT1 transcripts from 1.7 x 10(-2) to 1.0 copies/beta-actin copy. These findings were compared to the proportions of tumor cells in genomic VDJ PCR products determined by Southern blotting. Tumor cell ratios varied widely among the patients' samples, and no significant correlation was found between transcript copy number and tumor cell ratio. These results suggest that copy numbers of API2-MALT1 do not reflect tumor cell proportions, and that the number of copies of API2-MALT1 in a tumor cell is different for each clinical sample.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0887-6924
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2508-12
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:14562112-Adult, pubmed-meshheading:14562112-Aged, pubmed-meshheading:14562112-Blotting, Northern, pubmed-meshheading:14562112-Blotting, Southern, pubmed-meshheading:14562112-Colon, pubmed-meshheading:14562112-Female, pubmed-meshheading:14562112-Gene Dosage, pubmed-meshheading:14562112-Humans, pubmed-meshheading:14562112-Immunoglobulin Heavy Chains, pubmed-meshheading:14562112-Lung, pubmed-meshheading:14562112-Lymphoma, B-Cell, Marginal Zone, pubmed-meshheading:14562112-Male, pubmed-meshheading:14562112-Middle Aged, pubmed-meshheading:14562112-Mucous Membrane, pubmed-meshheading:14562112-Oncogene Proteins, Fusion, pubmed-meshheading:14562112-Organ Specificity, pubmed-meshheading:14562112-Pleural Cavity, pubmed-meshheading:14562112-RNA, Messenger, pubmed-meshheading:14562112-Recombinant Fusion Proteins, pubmed-meshheading:14562112-Stomach
pubmed:year
2003
pubmed:articleTitle
Heterogeneous copy numbers of API2-MALT1 chimeric transcripts in mucosa-associated lymphoid tissue lymphoma.
pubmed:affiliation
Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't