About 100 guests from 36 countries met on the XVIII. MetaSystems Distributor Meeting (DM) in November to exchange experiences and to get to know new trends and developments at MetaSystems.
XL DDIT3 BA
Break Apart Probe
- Order Number
- Package Size
- 100 µl (10 Tests)
XL DDIT3 BA is designed as a break apart probe. The orange labeled probe hybridizes proximal to the breakpoint in the DDIT3 gene region at 12q13, the green labeled probe hybridizes distal to the breakpoint.
This probe is intended for methanol/acetic-acid fixed cells and tissue sections.
Probe map details based on UCSC Genome Browser GRCh37/hg19. Map components not to scale.
Histological similarities and a subset of common immunohistochemical features make the diagnosis of soft tissue neoplasms challenging. Several entities characterizing reciprocal translocations have been identified and FISH based assays specific for the detection of these aberrations have become a valuable tool in diagnostics today. Myxoid/round cell liposarcoma (MRCLS) is the most common liposarcoma with an increased incidence in the extremities. Compared to other liposarcomas, MRCLS has a greater tendency for metastasis. It is characterized by the reciprocal translocation t(12;16)(q13;p11) which is present in up to 95% of cases. The resulting FUS-DDIT3 fusion protein has oncogenic potential and interferes with adipogenic differentiation. A paralog of FUS with high sequence homology is the EWS RNA Binding Protein 1 (EWSR1). EWSR1 is an alternative translocation partner of DDIT3 and the resulting fusion protein EWSR1-DDIT3, originating from t(12;22)(q13;q12), accounts for <5% of MRCLS cases. DDIT3 rearrangements are highly specific for MRCLS due to the presence of FUS-DDIT3 or EWSR1-DDIT3 fusion genes.
- Solid Tumors (Solid Tumors)
Two green-orange colocalization/fusion signals (2GO).
Aberrant Cell (typical results):
One green-orange colocalization/fusion signal (1GO), one separate green (1G) and orange (1O) signal each resulting from a chromosome break in the respective locus.
- Cristina et al (2000) JMD 2:132-138
- Downs-Kelly et al (2008) Am J Surg Pathol 32:8-13
- Tanas et al (2009) Adv Anat Pathol 16:383-391