Table 2.

The incidence of selected oncogenic events in multiple myeloma (MM) tumors and human MM cell lines (HMCL).

MM TumorHMCL
*Karyotypic abnormalities of c-myc are 15% in all MM tumors, but the incidence is 47% in 36 advanced MM tumors that generated metaphase chromosomes. 
≥ 1 IgH translocation 55%–73% 92% 
≥ 2 IgH independent translocations < 5 50 
≥ 3 IgH independent translocations < 1 13 
5 Recurrent Translocations (combined) 40% 89% 
    11q13 (cyclin D1) 15 29 
    6p21 (cyclin D3) 
    4p16.3 (FGFR3 + MMSET) 15 26 
    16q23 (c-maf) 21 
    20q11 (maf b) 11 
Ectopic cyclin D1 expression [no t(11;14)] 43 
8q24 (c-myc) karyotypic abnormality 15 (47*) 88 
MM TumorHMCL
*Karyotypic abnormalities of c-myc are 15% in all MM tumors, but the incidence is 47% in 36 advanced MM tumors that generated metaphase chromosomes. 
≥ 1 IgH translocation 55%–73% 92% 
≥ 2 IgH independent translocations < 5 50 
≥ 3 IgH independent translocations < 1 13 
5 Recurrent Translocations (combined) 40% 89% 
    11q13 (cyclin D1) 15 29 
    6p21 (cyclin D3) 
    4p16.3 (FGFR3 + MMSET) 15 26 
    16q23 (c-maf) 21 
    20q11 (maf b) 11 
Ectopic cyclin D1 expression [no t(11;14)] 43 
8q24 (c-myc) karyotypic abnormality 15 (47*) 88 
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