Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.

Accumulating evidence supports the role of an aberrant transcriptome as a driver of metastatic potential. Deadenylation is a general regulatory node for post-transcriptional control by microRNAs and other determinants of RNA stability. Previously, we demonstrated that the CCR4-NOT scaffold component...

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Main Authors: Farhoud Faraji, Ying Hu, Howard H Yang, Maxwell P Lee, G Sebastian Winkler, Markus Hafner, Kent W Hunter
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS Genetics
Online Access:http://europepmc.org/articles/PMC4726497?pdf=render
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author Farhoud Faraji
Ying Hu
Howard H Yang
Maxwell P Lee
G Sebastian Winkler
Markus Hafner
Kent W Hunter
author_facet Farhoud Faraji
Ying Hu
Howard H Yang
Maxwell P Lee
G Sebastian Winkler
Markus Hafner
Kent W Hunter
author_sort Farhoud Faraji
collection DOAJ
description Accumulating evidence supports the role of an aberrant transcriptome as a driver of metastatic potential. Deadenylation is a general regulatory node for post-transcriptional control by microRNAs and other determinants of RNA stability. Previously, we demonstrated that the CCR4-NOT scaffold component Cnot2 is an inherited metastasis susceptibility gene. In this study, using orthotopic metastasis assays and genetically engineered mouse models, we show that one of the enzymatic subunits of the CCR4-NOT complex, Cnot7, is also a metastasis modifying gene. We demonstrate that higher expression of Cnot7 drives tumor cell autonomous metastatic potential, which requires its deadenylase activity. Furthermore, metastasis promotion by CNOT7 is dependent on interaction with CNOT1 and TOB1. CNOT7 ribonucleoprotein-immunoprecipitation (RIP) and integrated transcriptome wide analyses reveal that CNOT7-regulated transcripts are enriched for a tripartite 3'UTR motif bound by RNA-binding proteins known to complex with CNOT7, TOB1, and CNOT1. Collectively, our data support a model of CNOT7, TOB1, CNOT1, and RNA-binding proteins collectively exerting post-transcriptional control on a metastasis suppressive transcriptional program to drive tumor cell metastasis.
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spelling doaj.art-46c02aa7f9ef4777a49f39e953ce69662022-12-22T01:32:56ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042016-01-01121e100582010.1371/journal.pgen.1005820Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.Farhoud FarajiYing HuHoward H YangMaxwell P LeeG Sebastian WinklerMarkus HafnerKent W HunterAccumulating evidence supports the role of an aberrant transcriptome as a driver of metastatic potential. Deadenylation is a general regulatory node for post-transcriptional control by microRNAs and other determinants of RNA stability. Previously, we demonstrated that the CCR4-NOT scaffold component Cnot2 is an inherited metastasis susceptibility gene. In this study, using orthotopic metastasis assays and genetically engineered mouse models, we show that one of the enzymatic subunits of the CCR4-NOT complex, Cnot7, is also a metastasis modifying gene. We demonstrate that higher expression of Cnot7 drives tumor cell autonomous metastatic potential, which requires its deadenylase activity. Furthermore, metastasis promotion by CNOT7 is dependent on interaction with CNOT1 and TOB1. CNOT7 ribonucleoprotein-immunoprecipitation (RIP) and integrated transcriptome wide analyses reveal that CNOT7-regulated transcripts are enriched for a tripartite 3'UTR motif bound by RNA-binding proteins known to complex with CNOT7, TOB1, and CNOT1. Collectively, our data support a model of CNOT7, TOB1, CNOT1, and RNA-binding proteins collectively exerting post-transcriptional control on a metastasis suppressive transcriptional program to drive tumor cell metastasis.http://europepmc.org/articles/PMC4726497?pdf=render
spellingShingle Farhoud Faraji
Ying Hu
Howard H Yang
Maxwell P Lee
G Sebastian Winkler
Markus Hafner
Kent W Hunter
Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.
PLoS Genetics
title Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.
title_full Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.
title_fullStr Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.
title_full_unstemmed Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.
title_short Post-transcriptional Control of Tumor Cell Autonomous Metastatic Potential by CCR4-NOT Deadenylase CNOT7.
title_sort post transcriptional control of tumor cell autonomous metastatic potential by ccr4 not deadenylase cnot7
url http://europepmc.org/articles/PMC4726497?pdf=render
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