Abstract:
:t(11;18)(q21;q21) has been recognized as a characteristic chromosomal translocation in mucosa-associated lymphoid tissue (MALT)-type lymphoma, and recent studies have demonstrated that this translocation results in the chimaeric transcript of API2 (apoptosis inhibitor 2)-MALT1 (mucosa-associated lymphoid tissue lymphoma translocation gene 1). In this study, we used reverse transcription polymerase chain reaction (RT-PCR) to analyse the incidence of this fusion product in a large series of MALT lymphoma, nodal marginal zone B-cell lymphoma (nMZBCL) and extranodal diffuse large B-cell lymphoma (DLBL) cases. RT-PCR analysis revealed that 17 of the 95 (17.9%) MALT lymphomas but none of the nine nMZBCLs or 16 DLBLs had API2-MALT1 fusion transcripts. The incidence of API2-MALT1 varied among MALT lymphomas arising from different sites and was highest for pulmonary MALT lymphomas (10 out of 16 cases, 62.5%). The presence of the API2-MALT1 fusion gene was also confirmed by long and accurate (LA)-PCR with genomic DNA, and the result correlated well with that obtained with the RT-PCR assay, thus demonstrating the usefulness of LA-PCR for the detection of the API2-MALT1 fusion gene.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Yonezumi M,Suzuki R,Suzuki H,Yoshino T,Oshima K,Hosokawa Y,Asaka M,Morishima Y,Nakamura S,Seto Mdoi
10.1046/j.1365-2141.2001.03158.xsubject
Has Abstractpub_date
2001-12-01 00:00:00pages
588-94issue
3eissn
0007-1048issn
1365-2141pii
3158journal_volume
115pub_type
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