Publication date: Available online 9 February 2017
Source:Cellular Signalling
Author(s): Erica Buoso, Marilisa Galasso, Melania Maria Serafini, Melania Ronfani, Cristina Lanni, Emanuela Corsini, Marco Racchi
The Receptor for Activated C Kinase 1 (RACK1) is a scaffold protein for different kinases and membrane receptors. RACK1 can shuttle proteins to their sites of action, facilitate cross-talk among distinct signaling pathways or recruit other signaling proteins into the complexes. Therefore, it is a key mediator of various pathways and is involved in various biological events including development, immune response, brain activity and cancer. Because of its importance, it is of extreme significance to understand the transcriptional mechanisms governing its expression. The identification of regulatory elements in the promoter of RACK1 shed some light on its transcriptional modulation in physiological and pathological context. Literature data support the existence of a complex hormonal balance, between glucocorticoids and androgens, in the control of RACK1 expression due to specific and complex interactions on the RACK1 promoter. These and other informations suggest that a better understanding of RACK1 transcriptional regulation is essential to unravel its role. Furthermore, the modulation of its expression in physiological or pathological conditions may be of interest in different context, such as aging and cancer.
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