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- W3005068987 abstract "The tumor suppressor protein p53 orchestrates cellular responses to a vast number of stresses, with DNA damage and oncogenic activation being some of the best described. The capacity of p53 to control cellular events such as cell cycle progression, DNA repair, and apoptosis, to mention some, has been mostly linked to its role as a transcription factor. However, how p53 integrates different signaling cascades to promote a particular pathway remains an open question. One way to broaden its capacity to respond to different stimuli is by the expression of isoforms that can modulate the activities of the full-length protein. One of these isoforms is p47 (p53/47, Δ40p53, p53ΔN40), an alternative translation initiation variant whose expression is specifically induced by the PERK kinase during the Unfolded Protein Response (UPR) following Endoplasmic Reticulum stress. Despite the increasing knowledge on the p53 pathway, its activity when the translation machinery is globally suppressed during the UPR remains poorly understood. Here, we focus on the expression of p47 and we propose that the alternative initiation of p53 mRNA translation offers a unique condition-dependent mechanism to differentiate p53 activity to control cell homeostasis during the UPR. We also discuss how the manipulation of these processes may influence cancer cell physiology in light of therapeutic approaches." @default.
- W3005068987 created "2020-02-14" @default.
- W3005068987 creator A5004045064 @default.
- W3005068987 creator A5013133434 @default.
- W3005068987 creator A5076976962 @default.
- W3005068987 creator A5082974540 @default.
- W3005068987 date "2020-02-10" @default.
- W3005068987 modified "2023-09-30" @default.
- W3005068987 title "Alternative Mechanisms of p53 Action During the Unfolded Protein Response" @default.
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