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Published on: October 20, 2014
miR-17-5p regulates endocytic trafficking through targeting TBC1D2/Armus
Andrius Serva1, Bettina Knapp, Yueh-Tso Tsai
1BioQuant, University of Heidelberg, Heidelberg, Germany.
Plos One
|January 4, 2013
Summary
The miR-17-92 cluster, known as oncomir-1, influences cell proliferation. This study reveals miR-17 regulates endocytic trafficking by targeting TBC1D2/Armus, uncovering a novel function in cellular processes.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- The miR-17-92 cluster, termed oncomir-1, possesses oncogenic properties.
- It encodes six microRNAs (miRNAs) involved in cell proliferation and apoptosis.
- Known targets are primarily regulators of cell cycle and apoptosis.
Purpose of the Study:
- To investigate the role of miR-17 and related miRNAs in endocytic trafficking.
- To identify novel targets of miR-17 involved in cellular transport.
Main Methods:
- mRNA expression analysis to identify potential trafficking regulators targeted by miR-17.
- Validation of TBC1D2/Armus as a direct target of miR-17.
Main Results:
- miR-17 influences endocytic trafficking, a fundamental cellular process.
- TBC1D2/Armus, a Rab7 GTPase-activating protein, was validated as a novel target of miR-17.
- Identified multiple trafficking regulators potentially targeted by miR-17.
Conclusions:
- Regulation of endocytic trafficking is a newly discovered function of miR-17.
- This function may cooperate with other known roles of miR-17 in various conditions.
- The findings expand the understanding of miR-17-92 cluster functions in cellular regulation.
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