BIM Mediates Oncogene Inactivation-induced Apoptosis in Multiple Transgenic Mouse Models of Acute Lymphoblastic Leukemia

Overview

Journal Oncotarget

Specialty Oncology

Date 2016 Apr 21

PMID 27095570

Citations 10

Authors

Yulin Li

Anja Deutzmann

Peter S Choi

Alice C Fan

Dean W Felsher

Affiliations

Soon will be listed here.

Abstract

Oncogene inactivation in both clinical targeted therapies and conditional transgenic mouse cancer models can induce significant tumor regression associated with the robust induction of apoptosis. Here we report that in MYC-, RAS-, and BCR-ABL-induced acute lymphoblastic leukemia (ALL), apoptosis upon oncogene inactivation is mediated by the same pro-apoptotic protein, BIM. The induction of BIMin the MYC- and RAS-driven leukemia is mediated by the downregulation of miR-17-92. Overexpression of miR-17-92 blocked the induction of apoptosis upon oncogene inactivation in the MYC and RAS-driven but not in the BCR-ABL-driven ALL leukemia. Hence, our results provide novel insight into the mechanism of apoptosis upon oncogene inactivation and suggest that induction of BIM-mediated apoptosis may be an important therapeutic approach for ALL.

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