Pituitary cell translation and secretory capacities are enhanced cell autonomously by the transcription factor Creb3l2

Abstract

Pituitary POMC secreting cells achieve high hormone expression levels after birth but the mechanism for this regulation is unclear. Here, the authors show that this process is driven cell autonomously by the differentiation factor Tpit that activates the bZIP transcription factors Creb3l2 and XBP1 to enhance translation and secretory capacities.