Abstract
The presence of a t(4;14) in multiple myeloma (MM) is associated with significantly inferior outcomes following both conventional chemotherapy and high-dose melphalan-based treatment regimens.1, 2 Detection of patients bearing the t(4;14) is therefore important in an MM molecular workup. Furthermore, since targeted inhibitors of the associated fibroblast growth factor receptor 3 (FGFR3) tyrosine kinase are now in clinical trials,3 detection of MM patients who express the FGFR3 protein is also of potential therapeutic relevance. With this in mind, we have employed the infrastructure of the Multiple Myeloma Research Consortium (MMRC) tissue bank to evaluate four different methodologies for the molecular diagnostic detection of this translocation. The methods employed are published previously4, 5, 6 or are provided as Supplementary Information.
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