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Induction of miR-3648 Upon ER Stress and Its Regulatory Role in Cell Proliferation.


ABSTRACT: MicroRNAs (miRNAs) play important roles under multiple cellular conditions including endoplasmic reticulum (ER) stress. We found that miR-3648, a human specific microRNA, was induced under ER stress. Moreover, Adenomatous polyposis coli 2 (APC2), a tumor suppressor and a negative regulator of Wnt signaling, was found to be the direct target of miR-3648. Levels of APC2 were downregulated when cells were under ER stress or after overexpressing miR-3648. Inhibition of miR-3648 by antagomir increased APC2 levels and decreased cell proliferation. Conversely, when miR-3648 was overexpressed, APC2 levels were decreased and the cell growth increased. Our data demonstrated that ER stress mediated induction of miR-3648 in human cells, which then downregulated APC2 to increase cell proliferation.

SUBMITTER: Rashid F 

PROVIDER: S-EPMC5535868 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

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Induction of miR-3648 Upon ER Stress and Its Regulatory Role in Cell Proliferation.

Rashid Farooq F   Awan Hassaan Mehboob HM   Shah Abdullah A   Chen Liang L   Shan Ge G  

International journal of molecular sciences 20170629 7


MicroRNAs (miRNAs) play important roles under multiple cellular conditions including endoplasmic reticulum (ER) stress. We found that miR-3648, a human specific microRNA, was induced under ER stress. Moreover, Adenomatous polyposis coli 2 (APC2), a tumor suppressor and a negative regulator of Wnt signaling, was found to be the direct target of miR-3648. Levels of APC2 were downregulated when cells were under ER stress or after overexpressing miR-3648. Inhibition of miR-3648 by antagomir increase  ...[more]

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