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Updated: Jun 8, 2026
Interphase Fluorescence in situ Hybridization of Bone Marrow Smears of Multiple Myeloma
Published on: April 15, 2022
[Investigation of the molecular changes in patients with multiple myeloma by fluorescence in situ hybridization]
Rui-fang Yang1, Chun-ming Li, Li-juan Chen
1Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Provincial Hospital, Nanjing, Jiangsu, P.R. China.
Objective:
To investigate the incidence and prognosis of 1q21 amplification, 13q14 deletion, TP53 gene deletion and IgH translocation in patients with multiple myeloma (MM).
Methods:
Interphase fluorescence in situ hybridization (I-FISH) with four different specific probes for the regions containing 1q21, 13q14.3 (D13S319), 14q32 and TP53 gene were performed in 43 MM patients.
Results:
Among the 43 MM patients, 1q21 amplification was observed in 28 (65.1%) cases, 13q14 deletion in 30 (69.7%) cases, TP53 gene deletion in 8 (18.6%) cases, and IgH translocation in 29 (67.4%) cases. The mortality of MM patients with 1q21 amplification, 13q14 deletion or TP53 gene deletion was higher than those without them.
Conclusion:
There is high frequency of 1q21 amplification, 13q14 deletion, TP53 gene deletion and IgH translocation in multiple myeloma, and 1q21 amplification, 13q14 deletion and TP53 gene deletion are poor prognosis factors for MM patients.
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