Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we will assume that you are happy to receive all cookies and you will not see this message again. Click 'Find out more' for information on how to change your cookie settings.

Translation is a basic cellular process and its capacity is adapted to cell function. In particular, secretory cells achieve high protein synthesis levels without triggering the protein stress response. It is unknown how and when translation capacity is increased during differentiation. Here, we show that the transcription factor Creb3l2 is a scaling factor for translation capacity in pituitary secretory cells and that it directly binds ~75% of regulatory and effector genes for translation. In parallel with this cell-autonomous mechanism, implementation of the physiological UPR pathway prevents triggering the protein stress response. Knockout mice for Tpit, a pituitary differentiation factor, show that Creb3l2 expression and its downstream regulatory network are dependent on Tpit. Further, Creb3l2 acts by direct targeting of translation effector genes in parallel with signaling pathways that otherwise regulate protein synthesis. Expression of Creb3l2 may be a useful means to enhance production of therapeutic proteins.

Original publication

DOI

10.1038/s41467-019-11894-3

Type

Journal article

Journal

Nat Commun

Publication Date

03/09/2019

Volume

10

Keywords

Animals, Basic-Leucine Zipper Transcription Factors, Cell Differentiation, Cell Line, Endoplasmic Reticulum, Gene Expression Regulation, Homeodomain Proteins, Mice, Inbred BALB C, Mice, Inbred C57BL, Mice, Transgenic, Pituitary Gland, Pro-Opiomelanocortin, Signal Transduction, T-Box Domain Proteins, X-Box Binding Protein 1, Xenopus laevis