Nucleoporin TPR Affects C2C12 Myogenic Differentiation via Regulation of Myh4 Expression

0555598 - ÚMG 2022 RIV CH eng J - Journal Article
Uhlířová, Jana - Šebestová, Lenka - Fišer, K. - Sieger, T. - Fišerová, Jindřiška - Hozák, Pavel
Nucleoporin TPR Affects C2C12 Myogenic Differentiation via Regulation of Myh4 Expression.
Cells. Roč. 10, č. 6 (2021), č. článku 1271. E-ISSN 2073-4409
R&D Projects: GA ČR GJ15-08835Y; GA ČR GA19-05608S; GA ČR(CZ) GA18-19714S; GA MŠMT LTC19048; GA MŠMT LTC20024; GA MŠMT(CZ) EF16_013/0001775; GA MŠMT(CZ) ED1.1.00/02.0109; GA MŠMT(CZ) LM2018129
Research Infrastructure: Czech-BioImaging II - 90129
Institutional support: RVO:68378050
Keywords : nucleoporin * translocated promoter region * tpr * lsd1 * myogenic differentiation * gene expression * Myh4 * Olfr
OECD category: Cell biology
Impact factor: 7.666, year: 2021
Method of publishing: Open access
https://www.mdpi.com/2073-4409/10/6/1271

The nuclear pore complex (NPC) has emerged as a hub for the transcriptional regulation of a subset of genes, and this type of regulation plays an important role during differentiation. Nucleoporin TPR forms the nuclear basket of the NPC and is crucial for the enrichment of open chromatin around NPCs. TPR has been implicated in the regulation of transcription, however, the role of TPR in gene expression and cell differentiation has not been described. Here we show that depletion of TPR results in an aberrant morphology of murine proliferating C2C12 myoblasts (MBs) and differentiated C2C12 myotubes (MTs). The ChIP-Seq data revealed that TPR binds to genes linked to muscle formation and function, such as myosin heavy chain (Myh4), myocyte enhancer factor 2C (Mef2C) and a majority of olfactory receptor (Olfr) genes. We further show that TPR, possibly via lysine-specific demethylase 1 (LSD1), promotes the expression of Myh4 and Olfr376, but not Mef2C. This provides a novel insight into the mechanism of myogenesis, however, more evidence is needed to fully elucidate the mechanism by which TPR affects specific myogenic genes.
Permanent Link: http://hdl.handle.net/11104/0330063