Poly (C)-Binding Protein 1 Regulates p63 Expression through mRNA Stability
نویسندگان
چکیده
p63, a transcription factor and p53 family protein, plays a crucial role in tumor suppression and development of various epithelial tissues. While p63 expression is controlled mostly by post-translational modifications, recent studies indicate that transcriptional and posttranscriptional regulations are essential for proper p63 expression. Here, we investigated the regulation of p63 expression by poly (C)-binding protein 1 (PCBP1, also known as hnRNP-E1 and αCP1). We found that knockdown of PCBP1 decreases the level of p63 transcript and protein. We also found that PCBP1 regulates the stability of p63 mRNA via binding to p63 3'UTR. Additionally, we found that a CU-rich element (CUE) in p63 3'UTR is bound by and responsive to PCBP1. Together, we conclude that PCBP1 regulates p63 expression via mRNA stability.
منابع مشابه
RNPC1, an RNA-binding protein and a target of the p53 family, regulates p63 expression through mRNA stability.
P63, a p53 family tumor suppressor, is involved in many cellular processes, including growth suppression and differentiation. Thus, p63 activity needs to be tightly controlled. Here, we found that RNPC1, a RNA-binding protein and a target of the p53 family, regulates p63 mRNA stability and consequently p63 activity. Specifically, we showed that overexpression of RNPC1 decreases, whereas knockdo...
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