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  • Title: A novel type of EWS-CHOP fusion gene in myxoid liposarcoma.
    Author: Matsui Y, Ueda T, Kubo T, Hasegawa T, Tomita Y, Okamoto M, Myoui A, Kakunaga S, Yasui N, Yoshikawa H.
    Journal: Biochem Biophys Res Commun; 2006 Sep 22; 348(2):437-40. PubMed ID: 16884691.
    Abstract:
    The cytogenetic hallmark of myxoid type and round cell type liposarcoma consists of reciprocal translocation of t(12;16)(q13;p11) and t(12;22)(q13;q12), which results in fusion of TLS/FUS and CHOP, and EWS and CHOP, respectively. Nine structural variations of the TLS/FUS-CHOP chimeric transcript have been reported, however, only two types of EWS-CHOP have been described. We describe here a case of myxoid liposarcoma containing a novel EWS-CHOP chimeric transcript and identified the breakpoint occurring in intron 13 of EWS. Reverse transcription-polymerase chain reaction and direct sequence showed that exon 13 of EWS was in-frame fused to exon 2 of CHOP. Genomic analysis revealed that the breaks were located in intron 13 of EWS and intron 1 of CHOP.
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