Abstract:
:Pleomorphic adenomas (PAs) of salivary glands are the most frequent entity of solid parotid tumors. Nonetheless, their genetics is not yet well understood. Thus, the current study characterized 14 PAs using a unique combination of cytogenetic, molecular cytogenetic and/or molecular karyotyping based approaches. The current study applied G-banding based on trypsin treatment and Giemsa-staining in peripheral blood and tumor tissue. Additionally, fluorescence in situ hybridization was performed using whole chromosome painting or centromeric probes. Array-based comparative genomic hybridization was also conducted. In 5 of 14 cases, chromosomal and/or submicroscopic alterations were characterized. Balanced and unbalanced translocations, loss or gain of whole chromosomes and submicroscopic copy number alterations were detected. Furthermore, the first case of a so-called 'jumping translocation' in a PA was reported. The genes twist-related protein 1 and distal-less homeobox 5 were also involved in copy number variations in two PAs. In conclusion, approaches utilized in the current study are highly suited to characterize the genetic constitution of PAs.
journal_name
Oncol Lettjournal_title
Oncology lettersauthors
Thielker J,Weise A,Othman MAK,Carreria IM,Melo JB,Von Eggeling F,Guntinas-Lichius O,Ziegler M,Liehr Tdoi
10.3892/ol.2019.11198subject
Has Abstractpub_date
2020-02-01 00:00:00pages
1125-1130issue
2eissn
1792-1074issn
1792-1082pii
OL-0-0-11198journal_volume
19pub_type
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