Loss of miR-155 upregulates WEE1 in metastatic melanoma.

Abstract:

:Significant advances have been made in the treatment of melanoma by targeting key cellular pathways, but additional targets are needed as many patients do not respond or relapse with resistant disease. MicroRNA-155 (MiR-155) has previously been shown to regulate melanoma cell growth and acts as a tumor suppressor. We tested a clinical population of melanoma tumors for miR-155 expression, and find that expression is low in most patients, although not predictive of outcome. We identified the protein kinase WEE1 as a novel target of miR-155. A mouse model of experimental metastasis finds that both increased expression of miR-155 and silencing of WEE1 lead to decreased metastases. Loss of miR-155 and increased expression of WEE1 may contribute to the metastatic phenotype in patients with melanoma.

journal_name

Melanoma Res

journal_title

Melanoma research

authors

DiSano JA,Huffnagle I,Gowda R,Spiegelman VS,Robertson GP,Pameijer CR

doi

10.1097/CMR.0000000000000545

subject

Has Abstract

pub_date

2019-04-01 00:00:00

pages

216-219

issue

2

eissn

0960-8931

issn

1473-5636

journal_volume

29

pub_type

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