MTA family of coregulators in nuclear receptor biology and pathology.
Nuclear receptors (NRs) rely on coregulators (coactivators and corepressors) to modulate the transcription of target genes. By interacting with nucleosome remodeling complexes, NR coactivators potentiate transcription, whereas corepressors inhibit transcription of the target genes. Metastasis-associated proteins (MTA) represent an emerging family of novel NR coregulators. In general, MTA family members form independent nucleosome remodeling and deacetylation (NuRD) complexes and repress the transcription of different genes by recruiting histone deacetylases onto their target genes. However, MTA1 also acts as a coactivator in a promoter-context dependent manner. Recent findings that repression of estrogen receptor transactivation functions by MTA1, MTA1s, and MTA2 and regulation of MTA3 by estrogen signaling have indicated the significance of these proteins in NR signaling. Here, we highlight the action of MTA proteins on NR signaling and their roles in pathophysiological conditions.
Manavathi
Bramanandam
B
Department of Molecular and Cellular Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
Singh
Kamini
K
Kumar
Rakesh
R
D000818:Animals; D051017:Apoptosis Regulatory Proteins / Q000378:metabolism*; D002467:Cell Nucleus / Q000378:metabolism*; D006801:Humans; D009362:Neoplasm Metastasis / Q000473:pathology* / Q000503:physiopathology*; D009363:Neoplasm Proteins / Q000378:metabolism*; D009687:Nuclear Proteins / Q000378:metabolism*; D012097:Repressor Proteins / Q000378:metabolism*; D015398:Signal Transduction
D051017:Apoptosis Regulatory Proteins; D009363:Neoplasm Proteins; D009687:Nuclear Proteins; D012097:Repressor Proteins