Frequent gain of chromosome band 1q21 in plasma-cell dyscrasias detected by fluorescence in situ hybridization: Incidence increases from MGUS to relapsed myeloma and is related to prognosis and disease progression following tandem stem-cell transplantation

Ichiro Hanamura, James P. Stewart, Yongsheng Huang, Fenghuang Zhan, Madhumita Santra, Jeffrey R. Sawyer, Klaus Hollmig, Maurizio Zangarri, Mauricio Pineda-Roman, Frits Van Rhee, Federica Cavallo, Bart Burington, John Crowley, Guido Tricot, Bart Barlogie, John D. Shaughnessy

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315 Scopus citations

Abstract

Using fluorescence in situ hybridization we investigated amplification of chromosome band 1q21 (Amp1q21) in more than 500 untreated patients with monoclonal gammopathy of undetermined significance (MGUS; n = 14), smoldering multiple myeloma (SMM; n = 31), and newly diagnosed MM (n = 479) as well as 45 with relapsed MM. The frequency of Amp1q21 was 0% in MGUS, 45% in SMM, 43% in newly diagnosed MM, and 72% in relapsed MM (newly diagnosed versus relapsed MM, P < .001). Amp1q21 was detected in 10 of 12 patients whose disease evolved to active MM compared with 4 of 19 who remained with SMM (P < .001). Patients with newly diagnosed MM with Amp1q21 had inferior 5-year event-free/overall survival compared with those lacking Amp1q21 (38%/52% versus 62%/78%, both P < .001). Thalidomide improved 5-year EFS in patients lacking Amp1q21 but not in those with Amp1q21 (P = .004). Multivariate analysis including other major predictors revealed that Amp1q21 was an independent poor prognostic factor. Relapsed patients who had Amp1q21 at relapse had inferior 5-year postrelapse survival compared with those lacking Amp1q21 at relapse (15% versus 53%, P = .027). The proportion of cells with Amp1q21 and the copy number of 1q21 tended to increase at relapse compared with diagnosis. Our data suggest that Amp1q21 is associated with both disease progression and poor prognosis.

Original languageEnglish (US)
Pages (from-to)1724-1732
Number of pages9
JournalBlood
Volume108
Issue number5
DOIs
StatePublished - Sep 1 2006

ASJC Scopus subject areas

  • Biochemistry
  • Immunology
  • Hematology
  • Cell Biology

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    Hanamura, I., Stewart, J. P., Huang, Y., Zhan, F., Santra, M., Sawyer, J. R., Hollmig, K., Zangarri, M., Pineda-Roman, M., Van Rhee, F., Cavallo, F., Burington, B., Crowley, J., Tricot, G., Barlogie, B., & Shaughnessy, J. D. (2006). Frequent gain of chromosome band 1q21 in plasma-cell dyscrasias detected by fluorescence in situ hybridization: Incidence increases from MGUS to relapsed myeloma and is related to prognosis and disease progression following tandem stem-cell transplantation. Blood, 108(5), 1724-1732. https://doi.org/10.1182/blood-2006-03-009910