PUBLICATION
CTCF Promotes Muscle Differentiation by Modulating the Activity of Myogenic Regulatory Factors
- Authors
- Delgado-Olguin, P., Brand-Arzamendi, K., Scott, I.C., Jungblut, B., Stainier, D.Y., Bruneau, B.G., and Recillas-Targa, F.
- ID
- ZDB-PUB-110207-26
- Date
- 2011
- Source
- The Journal of biological chemistry 286(14): 12483-94 (Journal)
- Registered Authors
- Jungblut, Benno, Scott, Ian, Stainier, Didier
- Keywords
- Cell differentiation, Gene expression, Gene regulation, Skeletal muscle, Transcription regulation, CTCF, MyoD
- MeSH Terms
-
- Reverse Transcriptase Polymerase Chain Reaction
- Muscle Development/genetics
- Muscle Development/physiology*
- Embryo, Nonmammalian/metabolism
- Animals
- Chromatin Immunoprecipitation
- RNA, Small Interfering
- Wnt Proteins/genetics
- Wnt Proteins/metabolism
- MyoD Protein/genetics
- MyoD Protein/metabolism
- Repressor Proteins/genetics
- Repressor Proteins/metabolism*
- Myogenin/genetics
- Myogenin/metabolism
- Cell Differentiation/genetics
- Cell Differentiation/physiology
- Cell Line
- Mice
- Zebrafish
- Myogenic Regulatory Factors/genetics
- Myogenic Regulatory Factors/metabolism*
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism
- Protein Binding/genetics
- Protein Binding/physiology
- In Situ Hybridization
- Somites/metabolism
- Embryo, Mammalian/metabolism
- Immunoprecipitation
- PubMed
- 21288905 Full text @ J. Biol. Chem.
Citation
Delgado-Olguin, P., Brand-Arzamendi, K., Scott, I.C., Jungblut, B., Stainier, D.Y., Bruneau, B.G., and Recillas-Targa, F. (2011) CTCF Promotes Muscle Differentiation by Modulating the Activity of Myogenic Regulatory Factors. The Journal of biological chemistry. 286(14):12483-94.
Abstract
CTCF nuclear factor regulates many aspects of gene expression, largely as a transcriptional repressor or via insulator function. Its roles in cellular differentiation are not clear. Here we show an unexpected role for CTCF in myogenesis. Ctcf is expressed in myogenic structures during mouse and zebrafish development. Gain and loss-of-function approaches in C2C12 cells revealed CTCF as a modulator of myogenesis by regulating muscle-specific gene expression. We addressed the functional connection between CTCF and myogenic regulatory factors (MRFs). CTCF enhances the myogenic potential of MyoD and Myogenin and establishes direct interactions with MyoD, indicating that CTCF regulates MRF-mediated muscle differentiation. Indeed, CTCF modulates functional interactions between MyoD and Myogenin in co-activation of muscle-specific gene expression, and facilitates MyoD recruitment to a muscle-specific promoter. Finally, ctcf loss-of-function experiments in zebrafish embryos revealed a critical role of CTCF in myogenic development and link CTCF to broader aspects of development via regulation of Wnt signaling. We conclude that CTCF modulates MRF functional interactions in the orchestration of myogenesis.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping