Nuclear Pores Regulate Muscle Development and Maintenance by Assembling a Localized Mef2C Complex.

ABSTRACT: Nuclear pore complexes (NPCs) are multiprotein channels connecting the nucleus with the cytoplasm. NPCs have been shown to have tissue-specific composition, suggesting that their function can be specialized. However, the physiological roles of NPC composition changes and their impacts on cellular processes remain unclear. Here we show that the addition of the Nup210 nucleoporin to NPCs during myoblast differentiation results in assembly of an Mef2C transcriptional complex required for efficient expression of muscle structural genes and microRNAs. We show that this NPC-localized complex is essential for muscle growth, myofiber maturation, and muscle cell survival and that alterations in its activity result in muscle degeneration. Our findings suggest that NPCs regulate the activity of funct

SUBMITTER: Raices M 

PROVIDER: S-EPMC5515297 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature