AU-rich elements and associated factors: are there unifying principles?

AU-rich elements and associated factors: are there unifying principles?

2005 | Carine Barreau, Luc Paillard and H. Beverley Osborne
This survey explores the role of AU-rich elements (AREs) in mRNA stability and their associated proteins (ARE-BPs). AREs are sequences rich in adenine and uracil that target mRNAs for rapid degradation. They are found in the 3'-untranslated regions (3'-UTRs) of many mRNAs with short half-lives, particularly those encoding proteins involved in cell growth and immune responses. AREs are regulated by various proteins, including AUF1, HuR, TTP, and others, which can either stabilize or destabilize mRNAs depending on the cellular context. ARE-BPs play a crucial role in mRNA degradation through mechanisms involving deadenylation and exonucleolytic degradation. The interaction between ARE-BPs and mRNAs can lead to functional redundancies or antagonisms, affecting mRNA stability and translation. The study highlights the complexity of these interactions, with some ARE-BPs stabilizing mRNAs while others destabilize them. The presence of multiple ARE-BPs that can bind to the same mRNA suggests a network of regulatory interactions that may be influenced by cellular conditions and stimuli. The survey also discusses the potential relationship between mRNA stability and translation, noting that some ARE-BPs can influence both processes. For example, TIA-1 and HuR have been shown to affect the stability and translation of certain mRNAs. The study emphasizes the need for further research to understand the precise mechanisms by which ARE-BPs regulate mRNA fate, including their interactions with other cellular components and the impact of external stimuli on these processes. Overall, the findings suggest that the regulation of ARE-containing mRNAs is a complex interplay of multiple factors, with implications for both basic research and potential therapeutic applications.This survey explores the role of AU-rich elements (AREs) in mRNA stability and their associated proteins (ARE-BPs). AREs are sequences rich in adenine and uracil that target mRNAs for rapid degradation. They are found in the 3'-untranslated regions (3'-UTRs) of many mRNAs with short half-lives, particularly those encoding proteins involved in cell growth and immune responses. AREs are regulated by various proteins, including AUF1, HuR, TTP, and others, which can either stabilize or destabilize mRNAs depending on the cellular context. ARE-BPs play a crucial role in mRNA degradation through mechanisms involving deadenylation and exonucleolytic degradation. The interaction between ARE-BPs and mRNAs can lead to functional redundancies or antagonisms, affecting mRNA stability and translation. The study highlights the complexity of these interactions, with some ARE-BPs stabilizing mRNAs while others destabilize them. The presence of multiple ARE-BPs that can bind to the same mRNA suggests a network of regulatory interactions that may be influenced by cellular conditions and stimuli. The survey also discusses the potential relationship between mRNA stability and translation, noting that some ARE-BPs can influence both processes. For example, TIA-1 and HuR have been shown to affect the stability and translation of certain mRNAs. The study emphasizes the need for further research to understand the precise mechanisms by which ARE-BPs regulate mRNA fate, including their interactions with other cellular components and the impact of external stimuli on these processes. Overall, the findings suggest that the regulation of ARE-containing mRNAs is a complex interplay of multiple factors, with implications for both basic research and potential therapeutic applications.
Reach us at info@study.space
[slides] AU-rich elements and associated factors%3A are there unifying principles%3F | StudySpace