Journalartikel

Jahr der Veröffentlichung: 2012

Zeitschrift: PLoS ONE

Bandnummer: 7

Heftnummer: 9

ISSN: 1932-6203

Open Access Status: Gold

DOI Link: https://doi.org/10.1371/journal.pone.0045514

Verlag: Public Library of Science

Abstract: 
Flotillin-1 and flotillin-2 are important regulators of signal transduction pathways such as growth factor signaling. Flotillin expression is increased under pathological conditions such as neurodegenerative disorders and cancer. Despite their importance for signal transduction, very little is known about the transcriptional regulation of flotillins. Here, we analyzed the expression of flotillins at transcriptional level and identified flotillins as downstream targets of the mitogen activated kinases ERK1/2. The promoter activity of flotillins was increased upon growth factor stimulation in a MAPK dependent manner. Overexpression of serum response factor or early growth response gene 1 resulted in increased flotillin mRNA and protein expression. Furthermore, both promoter activity and expression of endogenous flotillins were increased upon treatment with retinoic acid or by overexpression of the retinoid X receptor and its binding partners RAR alpha and PPAR gamma. Our data indicate that the expression of flotillins, which can be detected in all cultured cells, is fine-tuned in response to various external stimuli. This regulation may be critical for the outcome of signaling cascades in which flotillins are known to be involved.

Harvard-Zitierstil: Banning, A., Ockenga, W., Finger, F., Siebrasse, P. and Tikkanen, R. (2012) Transcriptional Regulation of Flotillins by the Extracellularly Regulated Kinases and Retinoid X Receptor Complexes, PLoS ONE, 7(9), Article e45514. https://doi.org/10.1371/journal.pone.0045514

APA-Zitierstil: Banning, A., Ockenga, W., Finger, F., Siebrasse, P., & Tikkanen, R. (2012). Transcriptional Regulation of Flotillins by the Extracellularly Regulated Kinases and Retinoid X Receptor Complexes. PLoS ONE. 7(9), Article e45514. https://doi.org/10.1371/journal.pone.0045514