alexa MicroRNA-135b promotes cancer progression by acting as a downstream effector of oncogenic pathways in colon cancer.
Genetics & Molecular Biology

Genetics & Molecular Biology

Hereditary Genetics: Current Research

Author(s): Valeri N, Braconi C, Gasparini P, Murgia C, Lampis A,

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Abstract MicroRNA deregulation is frequent in human colorectal cancers (CRCs), but little is known as to whether it represents a bystander event or actually drives tumor progression in vivo. We show that miR-135b overexpression is triggered in mice and humans by APC loss, PTEN/PI3K pathway deregulation, and SRC overexpression and promotes tumor transformation and progression. We show that miR-135b upregulation is common in sporadic and inflammatory bowel disease-associated human CRCs and correlates with tumor stage and poor clinical outcome. Inhibition of miR-135b in CRC mouse models reduces tumor growth by controlling genes involved in proliferation, invasion, and apoptosis. We identify miR-135b as a key downsteam effector of oncogenic pathways and a potential target for CRC treatment. Copyright © 2014 Elsevier Inc. All rights reserved.
This article was published in Cancer Cell and referenced in Hereditary Genetics: Current Research

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