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"In an elegant and comprehensive analysis of corticotroph adenoma, Reincke et al demonstrated that heterozygous somatic USP8 single nucleotide mutation or deletions at or adjacent to the 14-3-3 protein binding domain make USP8 resistant to 14-3-3 protein binding and more prone to proteolytic cleavage, which, in turn, leads to higher rate of USP8 induced EGFR deubiquitination activity upon binding of EGF to its receptor."
"USP8 is known to deubiquitinate EGFR in response to ligand stimulation. USP8 depletion accelerates receptor turnover, whereas loss of hepatocyte growth factor-regulated substrate (Hrs) rescues this phenotype, indicating that USP8 protects EGFR from degradation via an Hrs-dependent pathway. [..]As EGFR stabilization against lysosomal turnover requires deubiquitination by USP8."