Mutations in the deubiquitinase gene USP8 cause Cushing's disease
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Mutations in the deubiquitinase gene USP8 cause Cushing's disease. / Reincke, Martin; Sbiera, Silviu; Hayakawa, Akira; Theodoropoulou, Marily; Osswald, Andrea; Beuschlein, Felix; Meitinger, Thomas; Mizuno-Yamasaki, Emi; Kawaguchi, Kohei; Saeki, Yasushi; Tanaka, Keiji; Wieland, Thomas; Graf, Elisabeth; Saeger, Wolfgang; Ronchi, Cristina L; Allolio, Bruno; Buchfelder, Michael; Strom, Tim M; Fassnacht, Martin; Komada, Masayuki.
in: NAT GENET, Jahrgang 47, Nr. 1, 01.2015, S. 31-8.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Mutations in the deubiquitinase gene USP8 cause Cushing's disease
AU - Reincke, Martin
AU - Sbiera, Silviu
AU - Hayakawa, Akira
AU - Theodoropoulou, Marily
AU - Osswald, Andrea
AU - Beuschlein, Felix
AU - Meitinger, Thomas
AU - Mizuno-Yamasaki, Emi
AU - Kawaguchi, Kohei
AU - Saeki, Yasushi
AU - Tanaka, Keiji
AU - Wieland, Thomas
AU - Graf, Elisabeth
AU - Saeger, Wolfgang
AU - Ronchi, Cristina L
AU - Allolio, Bruno
AU - Buchfelder, Michael
AU - Strom, Tim M
AU - Fassnacht, Martin
AU - Komada, Masayuki
PY - 2015/1
Y1 - 2015/1
N2 - Cushing's disease is caused by corticotroph adenomas of the pituitary. To explore the molecular mechanisms of endocrine autonomy in these tumors, we performed exome sequencing of 10 corticotroph adenomas. We found somatic mutations in the USP8 deubiquitinase gene in 4 of 10 adenomas. The mutations clustered in the 14-3-3 protein binding motif and enhanced the proteolytic cleavage and catalytic activity of USP8. Cleavage of USP8 led to increased deubiqutination of the EGF receptor, impairing its downregulation and sustaining EGF signaling. USP8 mutants enhanced promoter activity of the gene encoding proopiomelanocortin. In summary, our data show that dominant mutations in USP8 cause Cushing's disease via activation of EGF receptor signaling.
AB - Cushing's disease is caused by corticotroph adenomas of the pituitary. To explore the molecular mechanisms of endocrine autonomy in these tumors, we performed exome sequencing of 10 corticotroph adenomas. We found somatic mutations in the USP8 deubiquitinase gene in 4 of 10 adenomas. The mutations clustered in the 14-3-3 protein binding motif and enhanced the proteolytic cleavage and catalytic activity of USP8. Cleavage of USP8 led to increased deubiqutination of the EGF receptor, impairing its downregulation and sustaining EGF signaling. USP8 mutants enhanced promoter activity of the gene encoding proopiomelanocortin. In summary, our data show that dominant mutations in USP8 cause Cushing's disease via activation of EGF receptor signaling.
KW - 14-3-3 Proteins
KW - ACTH-Secreting Pituitary Adenoma
KW - Adenoma
KW - Adrenocorticotropic Hormone
KW - Amino Acid Sequence
KW - Animals
KW - COS Cells
KW - Cercopithecus aethiops
KW - Endopeptidases
KW - Endosomal Sorting Complexes Required for Transport
KW - Exome
KW - Gene Expression Regulation, Neoplastic
KW - Humans
KW - Molecular Sequence Data
KW - Mutation
KW - Neoplasm Proteins
KW - Pituitary ACTH Hypersecretion
KW - Pituitary Neoplasms
KW - Pro-Opiomelanocortin
KW - Receptor, Epidermal Growth Factor
KW - Sequence Alignment
KW - Sequence Homology, Amino Acid
KW - Ubiquitin Thiolesterase
U2 - 10.1038/ng.3166
DO - 10.1038/ng.3166
M3 - SCORING: Journal article
C2 - 25485838
VL - 47
SP - 31
EP - 38
JO - NAT GENET
JF - NAT GENET
SN - 1061-4036
IS - 1
ER -