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Lookup NU author(s): Professor Christine Harrison FRCPath FMedSci
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A simple high throughput micro-fluorescence in situ hybridisation technique (FISH) was used to detect chromosome 13 deletions (delta13), immunoglobulin heavy chain (IgH) rearrangements, t(11;14)(q13;q32), t(4;14)(p16;q32), t(14;16)(q23;q32), p53 loss, and numerical changes of chromosomes 3, 6, 7, 9, 10, 11 and 17 in 228 cases of multiple myeloma (MM), including 33 asymptomatic/smouldering MM (SMM). The patients were not part of a clinical trial and were from 30 different hospitals. In all, 98.4% of cases were abnormal, with 43% having IgH rearrangements and 42% Delta13. The low incidence of IgH rearrangements was due to a decrease in this finding with age (P = 0.001) and the relatively high proportion of elderly patients in our study population (41% >70 years old). The incidence of specific IgH translocations was t(4;14) 11%, t(11;14) 16% and t(14;16) 3%. Univariate statistical testing showed delta13 (P = 0.002), and t(14;16) (P = 0.005) to be associated with shorter survival. This effect was exaggerated for patient's aged 70 years or under but no effect on survival was seen for those over 70 years. In younger patients t(4;14) (P = 0.044) and p53 deletion (P < 0.001) were also significant poor prognostic indicators. Multivariate analysis showed delta13 and t(14;16) to be independent prognostic variables when considered with age and clinical parameters.
Author(s): Ross FM, Ibrahim AH, Vilain-Holmes A, Winfield MO, Chiecchio L, Protheroe RK, Strike P, Gunasekera JL, Jones A, Harrison CJ, Morgan GJ, Cross NC
Publication type: Article
Publication status: Published
Journal: Leukemia
Year: 2005
Volume: 19
Issue: 9
Pages: 1634-42
ISSN (print): 0887-6924
ISSN (electronic): 1476-5551
Publisher: Nature Publishing Group
URL: http://dx.doi.org/10.1038/sj.leu.2403857
DOI: 10.1038/sj.leu.2403857
Notes: UK Myeloma Forum Journal Article Research Support, Non-U.S. Gov't England official journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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