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MiR-183-5p Inhibits Occurrence and Progression of Acute Myeloid Leukemia via Targeting Erbin.


ABSTRACT: Erbin has been shown to have significant effects on the development of solid tumors. However, little is known about its function and regulatory mechanism in hematological malignancies. The biological function of Erbin on cell proliferation was measured in vitro and in vivo. The predicted target of Erbin was validated by dual-luciferase reporter assay and rescue experiment. We found that overexpression of Erbin could inhibit the cell proliferation and promote the cell differentiation of acute myeloid leukemia (AML) cells, whereas depletion of Erbin could enhance the cell proliferation and block the cell differentiation in AML cells in vitro and in vivo. Besides, miR-183-5p was identified as the upstream regulator that negatively regulated the Erbin expression. The results were confirmed by dual-luciferase reporter and RNA pull-down assay. Furthermore, we found that miR-183-5p negatively regulated Erbin, resulting in enhanced cell proliferation of AML cells via activation of RAS/RAF/MEK/ERK and PI3K/AKT/FoxO3a pathways. The activation of RAS/RAF/MEK/ERK and PI3K/AKT/FoxO3a pathways was mediated by Erbin interacting with Grb2. These results were also validated by rescue experiments in vitro and in vivo. All above-mentioned findings indicated that the miR-183-5p/Erbin signaling pathway might represent a novel prognostic biomarker or therapeutic target for treatment of AML.

SUBMITTER: Zheng Z 

PROVIDER: S-EPMC6401194 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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miR-183-5p Inhibits Occurrence and Progression of Acute Myeloid Leukemia via Targeting Erbin.

Zheng Zhuojun Z   Zheng Xiao X   Zhu Yuandong Y   Gu Xiaoyan X   Gu Weiying W   Xie Xiaobao X   Hu Wenwei W   Jiang Jingting J  

Molecular therapy : the journal of the American Society of Gene Therapy 20190201 3


Erbin has been shown to have significant effects on the development of solid tumors. However, little is known about its function and regulatory mechanism in hematological malignancies. The biological function of Erbin on cell proliferation was measured in vitro and in vivo. The predicted target of Erbin was validated by dual-luciferase reporter assay and rescue experiment. We found that overexpression of Erbin could inhibit the cell proliferation and promote the cell differentiation of acute mye  ...[more]

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