Abstract:
BACKGROUND/AIM:Pseudomyogenic hemangioendothelioma is a rare endothelial tumor. Previous genetic investigations have shown that the tumors carry either a SERPINE1-FOSB or an ACTB-FOSB fusion gene. The aim of the study was to identify FOSB fusions linked with pseudomyogenic hemangioendothelioma. MATERIALS AND METHODS:RNA sequencing, reverse transcription polymerase chain reaction (RT-PCR) and Sanger sequencing analyses were performed on a pseudomyogenic hemangioendothelioma. RESULTS:An in-frame fusion was found between exon 4 of WWTR1 from 3q25 and exon 2 of FOSB from 19q13. The fusion gene not only places FOSB under the control of the WWTR1 promoter, but is predicted to encode a chimeric WWTR1-FOSB transcription factor. CONCLUSION:FOSB may be fused with SERPINE1, ACTB, or WWTR1 in pseudomyogenic hemangioendotheliomas. The resulting overexpression of FOSB fusion is a potentially useful marker that could be helpful in the diagnosis of these tumors.
journal_name
Cancer Genomics Proteomicsjournal_title
Cancer genomics & proteomicsauthors
Panagopoulos I,Lobmaier I,Gorunova L,Heim Sdoi
10.21873/cgp.20134subject
Has Abstractpub_date
2019-07-01 00:00:00pages
293-298issue
4eissn
1109-6535issn
1790-6245pii
16/4/293journal_volume
16pub_type
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