PMID- 22040539 OWN - NLM STAT- MEDLINE DCOM- 20120325 LR - 20221207 IS - 2542-5641 (Electronic) IS - 0366-6999 (Linking) VI - 124 IP - 19 DP - 2011 Oct TI - Clinical significance of chromosomal abnormalities detected by interphase fluorescence in situ hybridization in newly diagnosed multiple myeloma patients. PG - 2981-5 AB - BACKGROUND: Chromosome 13q14 deletion (del13q14), chromosome 1q21 gain (amp1q21) and chromosome 17p13 deletion (del17p13) are the most frequent chromosomal aberrations in multiple myeloma (MM). They play an important role in prognosis. The aim of this study was to investigate the clinical significance of the chromosomal changes in Chinese MM patients. METHODS: Interphase fluorescence in situ hybridization (FISH) on bone marrow (BM) cells was performed in 72 enrolled MM patients. Relationships between chromosomal abnormalities and clinical features, response to therapies and prognosis were analyzed. RESULTS: As a result of interphase FISH, 77.8% (56/72) patients had chromosome changes. The incidences of each probe were RB1 51.4% (37/72), D13S319 47.2% (34/72), 1q21 45.8% (33/72) and p53 22.2% (12/72). Osteolytic lesion, BM plasma cells index, serum calcium and serum M component were significantly correlated to del13q14. BM plasma cells and hemoglobin were correlated to amp1q21. Serum lactate dehydrogenase (LDH) was correlated with del17p13. Patients with del13q14 treated with bortezomib had a notably higher overall response rate than the patients treated with traditional chemotherapies (93% vs. 65%, P = 0.048). Patients carrying amp1q21 or/and del17p13 did not achieve satisfactory response to bortezomib. The median progression-free survival (PFS) for patients with amp1q21 was 5 months and patients without amp1q21 got 9-month PFS (P = 0.001). The median PFS for patients with del13q14 was 5 months (vs. 8 months, P = 0.026). The median PFS for patients with del17p13 was 3 months (vs. 8 months, P = 0.002). Patients with beta(2)-microglobulin > 5.5 mg/L also had a worse outcome, whose median PFS was 5 months (vs. 8 months, P = 0.016). CONCLUSIONS: The prevalence of chromosomal abnormalities of MM patients was similar in Chinese and Caucasian people. Genetic changes were associated with patients' responses to therapies and prognosis. FAU - Hu, Yu AU - Hu Y AD - Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China. dr_huyu@126.com FAU - Chen, Lei AU - Chen L FAU - Sun, Chun-Yan AU - Sun CY FAU - She, Xiao-Mei AU - She XM FAU - Ai, Li-Sha AU - Ai LS FAU - Qin, You AU - Qin Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Chin Med J (Engl) JT - Chinese medical journal JID - 7513795 SB - IM MH - Adult MH - Aged MH - Asian People MH - *Chromosome Aberrations MH - Chromosome Deletion MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Interphase MH - Male MH - Middle Aged MH - Multiple Myeloma/drug therapy/*genetics MH - Prognosis EDAT- 2011/11/02 06:00 MHDA- 2012/03/27 06:00 CRDT- 2011/11/02 06:00 PHST- 2011/11/02 06:00 [entrez] PHST- 2011/11/02 06:00 [pubmed] PHST- 2012/03/27 06:00 [medline] PST - ppublish SO - Chin Med J (Engl). 2011 Oct;124(19):2981-5.