Carm1 and the Epigenetic Control of Stem Cell Function

© The Author(s) 2022. Published by Oxford University Press..

Coactivator-associated arginine methyltransferase 1 (CARM1) is a methyltransferase whose function has been highly studied in the context of nuclear receptor signaling. However, CARM1 is known to epigenetically regulate expression of several myogenic genes involved in differentiation such as Myog and MEF2C. CARM1 also acts to regulate myogenesis through its influence on various cellular processes from embryonic to adult myogenesis. First, CARM1 has a crucial role in establishing polarity-regulated gene expression during an asymmetric satellite cell division by methylating PAX7, leading to the expression of Myf5. Second, satellite cells express the CARM1-FL and CARM1-ΔE15 isoforms. The former has been shown to promote pre-mRNA splicing through its interaction with CA150 and U1C, leading to their methylation and increased activity, while the latter displays a reduction in both metrics, thus, modulating alternative pre-mRNA splice forms in muscle cells. Third, CARM1 is a regulator of autophagy through its positive reinforcement of AMPK activity and gene expression. Autophagy already has known implications in ageing and disease, and CARM1 could follow suite. Thus, CARM1 is a central regulator of several important processes impacting muscle stem cell function and myogenesis.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Stem cells translational medicine - 11(2022), 11 vom: 18. Nov., Seite 1143-1150

Sprache:

Englisch

Beteiligte Personen:

Saber, John [VerfasserIn]
Rudnicki, Michael A [VerfasserIn]

Links:

Volltext

Themen:

Asymmetric division
Autophagy
Carm1
Coactivator-associated arginine methyltransferase 1
EC 2.1.1.319
Journal Article
Muscle stem cells
Pre-mRNA splicing
Protein-Arginine N-Methyltransferases
RNA Precursors
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 21.11.2022

Date Revised 14.12.2022

published: Print

Citation Status MEDLINE

doi:

10.1093/stcltm/szac068

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346201039