The involvement of microRNAs in malignant transformation.

Abstract excerpt

In the multiple steps in cancer progression, microRNAs (miRNAs) play significant roles in each stage. Reports of considerable differences in expression levels of miRNAs between normal and malignant tissues are understandable considering miRNAs are key regulators of gene expression. Dysregulation of miRNA expression levels in neoplasia occurs because many miRNAs are located in "fragile sites", which are frequently...

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