The interplay between estrogen receptor beta and protein kinase C, a crucial collaboration for medulloblastoma cell proliferation and invasion.

Cellular signalling 2022 Apr

filter terms:

Medulloblastoma (MB) is the most common and aggressive pediatric intracranial tumor. Estrogen receptor β (ERβ) expression correlates with MB development and its phosphorylation modifies its transcriptional activity in a ligand-dependent or independent manner. Using in silico tools, we have identified several residues in ERβ protein as potential targets of protein kinases C (PKCs) α and δ. Using Daoy cells, we observed that PKCα and PKCδ associate with ERβ and induce its phosphorylation. The activation of ERβ promotes MB cells proliferation and invasion, and PKCs downregulation dysregulates these steroid receptor mediated processes. Our data suggest that these kinases may play a crucial role in the regulation of the ERβ transcriptional activity. Overexpression of both PKCα and PKCδ in MB biopsies samples supports their relevance in MB progression. Copyright © 2022 Elsevier Inc. All rights reserved.

Citation

Rubí Hernández-Rojas, Carolina Jiménez-Arellano, Marisol de la Fuente-Granada, David Ordaz-Rosado, Rocío García-Becerra, Pedro Valencia-Mayoral, Lourdes Álvarez-Arellano, Pilar Eguía-Aguilar, Marco A Velasco-Velázquez, Aliesha González-Arenas. The interplay between estrogen receptor beta and protein kinase C, a crucial collaboration for medulloblastoma cell proliferation and invasion. Cellular signalling. 2022 Apr;92:110246