1 Introduction
MicroRNAs constitute a class of non-protein-coding small RNAs that target mRNAs for translational repression or cleavage to regulate genes [1]. Studies have shown that miRNAs are one of the most important components in the cell and play vital roles in the pathogenesis of cancer, such as cancer cell apoptosis and proliferation [2], [3], [4]. Therefore, the identification of disease-related miRNAs is critical to elucidating the development of tumorigenesis, and further facilitating the discovery of potential drug targets.