Abstract：
:Chromosomal hyperdiploidy is the defining genetic signature in 40-50% of myeloma (MM) patients. We characterize hyperdiploid-MM (H-MM) in terms of its clinical and prognostic features in a cohort of 220 H-MM patients entered into clinical trials. Hyperdiploid-myeloma is associated with male sex, kappa immunoglobulin subtype, symptomatic bone disease and better survival compared to nonhyperdiploid-MM (median overall survival 48 vs 35 months, log-rank P = 0.023), despite similar response to treatment. Among 108 H-MM cases with FISH studies for common genetic abnormalities, survival is negatively affected by the existence of immunoglobulin heavy chain (IgH) translocations, especially those involving unknown partners, while the presence of chromosome 13 deletion by FISH did not significantly affect survival (median overall survival 50 vs 47 months, log-rank P = 0.47). Hyperdiploid-myeloma is therefore a unique genetic subtype of MM associated with improved outcome with distinct clinical features. The existence of IgH translocations but not chromosome 13 deletion by FISH negatively impacts survival and may allow further risk stratification of this population of MM patients.
journal_name
Leukemiajournal_title
Leukemiaauthors
Chng WJ,Santana-Dávila R,Van Wier SA,Ahmann GJ,Jalal SM,Bergsagel PL,Chesi M,Trendle MC,Jacobus S,Blood E,Oken MM,Henderson K,Kyle RA,Gertz MA,Lacy MQ,Dispenzieri A,Greipp PR,Fonseca Rdoi
10.1038/sj.leu.2404172subject
Has Abstractpub_date
2006-05-01 00:00:00pages
807-13issue
5eissn
0887-6924issn
1476-5551pii
2404172journal_volume
20pub_type
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