title: p53 and ribosome biogenesis stress: the essentials.
abstract: Cell proliferation and cell growth are two tightly linked processes, as the proliferation program cannot be executed without proper accumulation of cell mass, otherwise endangering the fate of the two daughter cells. It is therefore not surprising that ribosome biogenesis, a key element in cell growth, is regulated by many cell cycle regulators. This regulation is exerted transcriptionally and post-transcriptionally, in conjunction with numerous intrinsic and extrinsic signals. Those signals eventually converge at the nucleolus, the cellular compartment that is not only responsible for executing the ribosome biogenesis program, but also serves as a regulatory hub, responsible for integrating and transmitting multiple stress signals to the omnipotent cell fate gatekeeper, p53. In this review we discuss when, how and why p53 is activated upon ribosomal biogenesis stress, and how perturbation of this critical regulatory interplay may impact human disease.
authors.affiliation: Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
authors.forename: Lior
authors.initials: L
authors.lastname: Golomb
authors.affiliation: Department of Molecular Medicine and Biotechnology, School of Medicine, University of Rijeka, Croatia.
authors.forename: Sinisa
authors.initials: S
authors.lastname: Volarevic
authors.affiliation: Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel. Electronic address: moshe.oren@weizmann.ac.il.
authors.forename: Moshe
authors.initials: M
authors.lastname: Oren
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000378:metabolism; D006801:Humans; D058990:Molecular Targeted Therapy; D009369:Neoplasms / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology; D012270:Ribosomes / Q000378:metabolism*; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism*
chemical_list: D016159:Tumor Suppressor Protein p53
keywords: Nucleolus; Ribosomal protein; Ribosome biogenesis; p53