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The amplification of 1q21 is an adverse prognostic factor in patients with multiple myeloma in a Chinese population

Authors Yu W, Guo R, Qu X, Qiu H, Li J, Zhang R, Chen L

Received 28 August 2015

Accepted for publication 7 November 2015

Published 12 January 2016 Volume 2016:9 Pages 295—302

DOI https://doi.org/10.2147/OTT.S95381

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Dekuang Zhao

Peer reviewer comments 3

Editor who approved publication: Dr William Cho


Wenjun Yu,1,2,* Rui Guo,1,* Xiaoyan Qu,1 Hairong Qiu,1 Jianyong Li,1 Run Zhang,1 Lijuan Chen1

1Department of Hematology, First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 2Department of Cadre Health Care, Jiangsu Province Geriatric Institution, Jiangsu Province Official Hospital, Nanjing, People’s Republic of China

*These authors contributed equally to this work

Abstract: The prognostic heterogeneity of multiple myeloma (MM) is largely due to different genetic abnormalities. Cytogenetic analysis has revealed that most of MM harbor chromosome aberrations. Amplification of 1q21 is one of the most common chromosomal aberrations. Interphase fluorescence in situ hybridization was applied to detect the 1q21 amplification in 86 Chinese patients with newly diagnosed MM. Amp(1q21) was found in totally 40 of 86 (46.5%) cases, among which 29 with three copies of 1q21 and eleven with at least four copies of 1q21. Further analysis revealed a significant difference of overall survival and progression-free survival among the three arms (P<0.05). Bortezomib could not significantly improve the overall survival for patients with 1q21 amplification (P>0.05). These findings suggest that 1q21 amplification with four copies or more is prognostic factor for adverse outcomes of MM patients. Furthermore, chromosome 1q21 gains predicted a poor overall survival even in those receiving bortezomib-based regimens.

Keywords: multiple myeloma, 1q21 amplification, I-FISH, prognosis

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