The changing paradigm of intron retention: regulation, ramifications and recipes

The changing paradigm of intron retention: regulation, ramifications and recipes.

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Item Type: Article
Status: Published
Official URL:
Journal or Publication Title: Nucleic Acids Research
Date: 2019
Divisions: Computational BioMedicine
Epigenetics and RNA Biology
Gene and Stem Cell Therapy
Depositing User: General Admin
Identification Number: 10.1093/nar/gkz1068
ISSN: 0305-1048
Date Deposited: 04 Jan 2021 02:45

Intron retention (IR) is a form of alternative splicing that has long been neglected in mammalian systems although it has been studied for decades in non-mammalian species such as plants, fungi, insects and viruses. It was generally assumed that mis-splicing, leading to the retention of introns, would have no physiological consequence other than reducing gene expression by nonsense-mediated decay. Relatively recent landmark discoveries have highlighted the pivotal role that IR serves in normal and disease-related human biology. Significant technical hurdles have been overcome, thereby enabling the robust detection and quantification of IR. Still, relatively little is known about the cis- and trans-acting modulators controlling this phenomenon. The fate of an intron to be, or not to be, retained in the mature transcript is the direct result of the influence exerted by numerous intrinsic and extrinsic factors at multiple levels of regulation. These factors have altered current biological paradigms and provided unexpected insights into the transcriptional landscape. In this review, we discuss the regulators of IR and methods to identify them. Our focus is primarily on mammals, however, we broaden the scope to non-mammalian organisms in which IR has been shown to be biologically relevant.

Monteuuis, Geoffray
Wong, Justin J L
Bailey, Charles G
Schmitz, Ulf
Rasko, John E J
Last Modified: 04 Jan 2021 02:45

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