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MiR-191 Regulates Primary Human Fibroblast Proliferation and Directly Targets Multiple Oncogenes.


ABSTRACT: miRNAs play a central role in numerous pathologies including multiple cancer types. miR-191 has predominantly been studied as an oncogene, but the role of miR-191 in the proliferation of primary cells is not well characterized, and the miR-191 targetome has not been experimentally profiled. Here we utilized RNA induced silencing complex immunoprecipitations as well as gene expression profiling to construct a genome wide miR-191 target profile. We show that miR-191 represses proliferation in primary human fibroblasts, identify multiple proto-oncogenes as novel miR-191 targets, including CDK9, NOTCH2, and RPS6KA3, and present evidence that miR-191 extensively mediates target expression through coding sequence (CDS) pairing. Our results provide a comprehensive genome wide miR-191 target profile, and demonstrate miR-191's regulation of primary human fibroblast proliferation.

SUBMITTER: Polioudakis D 

PROVIDER: S-EPMC4439112 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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MiR-191 Regulates Primary Human Fibroblast Proliferation and Directly Targets Multiple Oncogenes.

Polioudakis Damon D   Abell Nathan S NS   Iyer Vishwanath R VR  

PloS one 20150520 5


miRNAs play a central role in numerous pathologies including multiple cancer types. miR-191 has predominantly been studied as an oncogene, but the role of miR-191 in the proliferation of primary cells is not well characterized, and the miR-191 targetome has not been experimentally profiled. Here we utilized RNA induced silencing complex immunoprecipitations as well as gene expression profiling to construct a genome wide miR-191 target profile. We show that miR-191 represses proliferation in prim  ...[more]

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