Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2015 Dec 17;126(25):2713-9.
doi: 10.1182/blood-2015-06-650242. Epub 2015 Oct 29.

Understanding the role of hyperdiploidy in myeloma prognosis: which trisomies really matter?

Affiliations

Understanding the role of hyperdiploidy in myeloma prognosis: which trisomies really matter?

Marie-Lorraine Chretien et al. Blood. .

Abstract

The prognosis of multiple myeloma is mainly dependent upon chromosomal changes. The 2 major abnormalities driving poor outcome are del(17p) and t(4;14). However, the outcome of these high-risk patients is not absolutely uniform, with some patients presenting long survival. We hypothesized that these better outcomes might be related to concomitant "good-risk" chromosomal changes exploring hyperdiploidy. We analyzed a large series of 965 myeloma patients, including 168 patients with t(4;14) and 126 patients with del(17p), using high-throughput single-nucleotide polymorphism arrays after plasma cell sorting. As expected, trisomic chromosomes were highly associated. Using the LASSO model, we found that only chromosome 3, when trisomic, was associated with a longer progression-free survival and that 3 trisomies modulated overall survival (OS) in myeloma patients: trisomies 3 and 5 significantly improved OS, whereas trisomy 21 worsened OS. In patients with t(4;14), trisomies 3 and/or 5 seemed to overcome the poor prognosis. For the first time, using a specific modeling approach, we show that not all trisomies display the same prognostic impact. This finding could be important for routine assessment of prognosis in myeloma, and some high-risk patients with a traditional evaluation could in fact be standard-risk patients.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Graphical representation of the association between trisomies. P values were derived from a χ2 test. Tri, trisomy.
Figure 2
Figure 2
Trisomy 3 improves the PFS of high-risk patients. Kaplan-Meier estimates of TTP according to (A) t(4;14) and trisomy 3 and (B) del(17p) and trisomy 3.
Figure 3
Figure 3
Trisomies 3 and 5 improve the OS of high-risk patients. Kaplan-Meier estimates of OS according to (A) t(4;14) and trisomy 3, (B) t(4;14) and trisomy 5, (C) del(17p) and trisomy 3, and (D) del(17p) and trisomy 5.
Figure 4
Figure 4
Trisomy 21 worsens the OS of high-risk patients. Kaplan-Meier estimates of OS according to (A) t(4;14) and trisomy 21 and (B) del(17p) and trisomy 21. The curves were adjusted on trisomies 3 and 5.

References

    1. Gertz MA, Lacy MQ, Dispenzieri A, et al. Clinical implications of t(11;14)(q13;q32), t(4;14)(p16.3;q32), and -17p13 in myeloma patients treated with high-dose therapy. Blood. 2005;106(8):2837–2840. - PMC - PubMed
    1. Fonseca R, Blood E, Rue M, et al. Clinical and biologic implications of recurrent genomic aberrations in myeloma. Blood. 2003;101(11):4569–4575. - PubMed
    1. Avet-Loiseau H, Attal M, Moreau P, et al. Genetic abnormalities and survival in multiple myeloma: the experience of the Intergroupe Francophone du Myélome. Blood. 2007;109(8):3489–3495. - PubMed
    1. Hanamura I, Stewart JP, Huang Y, et al. 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. 2006;108(5):1724–1732. - PMC - PubMed
    1. Avet-Loiseau H, Attal M, Campion L, et al. Long-term analysis of the IFM 99 trials for myeloma: cytogenetic abnormalities [t(4;14), del(17p), 1q gains] play a major role in defining long-term survival. J Clin Oncol. 2012;30(16):1949–1952. - PubMed

Publication types