Tenglong Zhang,Weili Jia,Li Sun,Xiaoyan Wang,Xiuhua Xing,Shuai Gong,Chunrui Yu. Expression and significance of microRNA-32 in multiple myeloma. Oncol Transl Med, 2014, 13: 472-475.
Expression and significance of microRNA-32 in multiple myeloma
Received:August 18, 2014  Revised:September 29, 2014
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KeyWord:microRNA-32 (miR-32); multiple myeloma (MM); real-time polymerase chain reaction (real-time PCR)
Author NameAffiliationE-mail
Tenglong Zhang Department of Oncology, Qingdao Municipal Hospital 331376656@qq.com 
Weili Jia Department of Oncology, Qingdao Municipal Hospital  
Li Sun Department of Oncology, Qingdao Municipal Hospital  
Xiaoyan Wang Department of Oncology, Qingdao Municipal Hospital  
Xiuhua Xing Department of Oncology, Qingdao Municipal Hospital  
Shuai Gong Department of Oncology, Qingdao Municipal Hospital  
Chunrui Yu Department of Oncology, Qingdao Municipal Hospital yuyouyoudangdang@sina.com 
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Abstract:
      Objective: This study was aimed to explore the expression of microRNA-32 (miR-32) in multiple myeloma (MM), and study its association with β2-microglobulin and staging of MM by Durie-Salmon classification. Methods: The expression level of miR-32 in bone marrow mono-nuclear cells of MM were examined by real-time polymerase chain reaction (real-time PCR), and the correlations between the expression level of miR-32 and related clinic pathologic features β2-microglobulin, staging of MM by Durie-Salmon classification were further analyzed. Results: The expression of miR-32 in MM patients was obviously higher than that in normal control (P < 0.05). The expression of miR-32 in relapsed/refractory MM patients was obviously higher than that in newly diagnosed MM patients. The expression of miR-32 in MM patients decreased after chemical therapy than that before treatment, especially in effective group (P < 0.05). There was no statistically significant change in ineffective/progress group after chemical therapy (P > 0.05) .The expression of miR-32 was associated to staging of MM and β2-microglobulin level. Conclusion: Expression level of miR-32 in MM patients is significantly higher than that in normal bone marrow, these data indicated that miR-32 may play an important role in the development of MM. High-regulated expression of miR-32 was associated with β2-microglobulin and staging of MM by Durie-Salmon classification.
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