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SCF AND APC E3 UBIQUITIN LIGASES IN TUMORIGENESIS IBD

SPRINGER
04 / 2014
9783319050256
Inglés

Sinopsis

This SpringerBrief explores theáphysiological roles ofáSkp1-Cullin1-F-box Complexá(SCF) andáAnaphase Promoting Complex (APC) in normal cells and in tumor formation. These twoárelated, multi-subunit E3 ubiquitin ligase enzymes,áAPCáandáSCFáare thought to be the major driving forces governing proper cell cycle progression.áDefective cell cycle regulation leads to genomic instability and ultimately, cancer development. Selective degradation of key cell cycle regulators by the ubiquitin-proteasome system has been proven to be a major regulatory mechanism for ensuring ordered and coordinated cell cycle progression. The SCF and APC E3 ligases have been characterized to play pivotal roles in regulating the cell cycle progression by timely degrading various critical cell cycle regulators. This Brief reviews recent studies thatáhave shown that deregulation of signaling pathways in which the two ubiquitin ligases are involved causes aberrant cell cycle regulation, in turn leading to tumorigenesis.áThe text also discusses how SCF and APC may present promising therapeutic targets to treat various cancers.