Discovery and functional implications of a miR-29b-1/miR-29a cluster polymorphism in acute myeloid leukemia.

Ngankeu A, Ranganathan P, Havelange V, Nicolet D, Volinia S, Powell BL, Kolitz JE, Uy GL, Stone RM, Kornblau SM, Andreeff M, Croce CM, Bloomfield CD, Garzon R
Oncotarget 9 4354-4365 01/12/2018

Abstract

We previously reported that microRNA (miR)-29b is down-regulated and has a tumor suppressor role in acute myeloid leukemia (AML). However, little is known about the mechanisms responsible for miR-29b expression downregulation in AML. In this work we screened for mutations that could affect miR-29b expression. Using Sanger sequencing, we identified a germline thymidine (T) base deletion within the miR-29b-1/miR-29a cluster precursor in 16% of AML patients. Remarkably we found a significant enrichment for the presence of the miR-29 polymorphism in core binding factor (CBF) newly diagnosed AML patients (

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