Abstract:
:The aim of this study was to determine genetic alterations in mucoepidermoid carcinomas of the salivary gland in association with clinical and histopathological parameters. Nineteen formalin-fixed, paraffin-embedded tumors were analysed by using comparative genomic hybridization (CGH), fluorescence in situ hybridization (FISH) on interphase nuclei and reverse transcriptase-polymerase chain reaction (RT-PCR) for detection of MECT1-MAML2 fusion transcript. The CGH analysis showed an overrepresentation of chromosome X and losses of entire chromosomes or regions on chromosome 1, 2, and 15 as the most frequent copy number changes. In 37% of the analysed tumors a MAML2-rearrangement by interphase FISH was detected, whereas 58% of the samples showed expression of MECT1-MAML2 fusion transcript. We conclude that the presence of MAML2-rearrangement as well as of MECT1-MAML2 fusion transcript may reflect a more favourable prognosis and may be a useful marker for clinical prediction of the biological behavior of these tumors as previously reported.
journal_name
Oncol Repjournal_title
Oncology reportsauthors
Verdorfer I,Fehr A,Bullerdiek J,Scholz N,Brunner A,Krugmann J,Hager M,Haufe H,Mikuz G,Scholtz Asubject
Has Abstractpub_date
2009-08-01 00:00:00pages
305-11issue
2eissn
1021-335Xissn
1791-2431journal_volume
22pub_type
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