The yearly MetaSystems Distributor Meeting (DM), brought into life in 2002 as a platform to gather all international partners of MetaSystems and other members of the global MetaSystems family, just ended last week. The DM is being organized in turns by MetaSystems Headquarters, MetaSystems USA (MGI), and MetaSystems Asia. Since MGI is celebrating its 25th anniversary in 2018 they decided to choose a special location: Nassau, The Bahamas!
XL t(4;14) FGFR3/IGH DF
Translocation/Dual Fusion Probe
- Order Number
- Package Size
- 100 µl
The most frequent primary abnormalities in multiple myeloma (MM) are trisomies of odd-numbered chromosomes or translocations involving the immunglobulin heavy chain (IgH) gene locus. The most common MM-associated IGH translocations are t(11;14), t(4;14), t(6;14), t(14;16) and t(14;20) in the order of their occurrence. The consequence of these rearrangements is the dysregulation of genes juxtaposed to transcriptional enhancers in the IGH locus. Prognosis and risk stratification strongly depends on the detection and interpretation of cytogenetic primary abnormalities. t(14;16) and t(14;20) are considered as high risk, t(4;14) as intermediate risk and t(6;14) and t(11;14) as standard risk cytogenetic aberrations in patients with MM based on FISH testing. Secondary aberrations are also influencing the outcome.
The recurrent translocation t(4;14)(p16;q32) is juxtaposing FGFR3 with the IGH Ea enhancer on der(14) whereas expression of NSD2 is controlled by the Eµ enhancer on der(4). FGFR3 overexpression is detectable in about 70% of t(4;14) positive MM patients, suggesting that FGFR3 dysregulation is not the crucial oncogenic event. The poor outcome of patients lacking FGFR3 expression due to the loss of der(14) is supporting this conclusion. Transcripts from the NDS2 locus on the other hand are found to be overexpressed in all t(4;14) positive MM cases, suggesting that this gene region plays a major role in the manifestation of MM.
- Multiple Myeloma and Plasma Cell Neoplasms (MM)
Two green (2G) and two orange (2O) signals.
Aberrant Cell (typical results):
One green (1G), one orange (1O), and two green-orange colocalization/fusion signals (2GO) resulting from a reciprocal translocation between the relevant loci.
- Chesi et al (1998) Blood 92:3025-3034
- Keats et al (2005) Blood 15:4060-4069
- Rajan and Rajkumar (2015) Blood Cancer J. 5:e365