PLX182844

GSE154849: The nuclear envelope protein Net39 is essential for nuclear integrity, chromatin organization, and muscle growth (RNA-Seq)

• Organsim mouse
• Type RNASEQ
• Target gene
• Project ARCHS4

Lamins and transmembrane proteins within the nuclear envelope are regulators of nuclear structure and chromatin organization. Nuclear Envelope Transmembrane Protein 39 (Net39) is a muscle-restricted nuclear envelope protein. We show that mice lacking Net39 succumb to severe myopathy and neonatal lethality, with concomitant disruption in nuclear integrity, chromatin accessibility, gene expression and metabolism. These abnormalities resemble those of Emery-Dreifuss muscular dystrophy (EDMD), caused by mutations in A-type Lamins (LMNA) and other genes, like Emerin (EMD). We observe that Net39 is downregulated in EDMD patients, implicating Net39 in the pathogenesis of this disorder. Our findings reveal an intimate role for the nuclear envelope in maintaining muscle chromatin organization, gene expression and function, and highlight the importance of Net39 in these processes and in the molecular etiology of EDMD. SOURCE: Andres Ramirez-Martinez (andres.ramirezmartinez@utsouthwestern.edu) - Olson Lab UTSW Medical Center