Noonan syndrome, a developmental disorder characterized by congenital heart defects, reduced growth, facial dysmorphism and variable cognitive deficits, is caused by constitutional dysregulation of the RAS-MAPK signaling pathway. Here we report that germline NRAS mutations conferring enhanced stimulus-dependent MAPK activation account for some cases of this disorder. These findings provide evidence for an obligate dependency on proper NRAS function in human development and growth.

A restricted spectrum of NRAS mutations causes Noonan syndrome.

MAZZANTI, LAURA;
2010

Abstract

Noonan syndrome, a developmental disorder characterized by congenital heart defects, reduced growth, facial dysmorphism and variable cognitive deficits, is caused by constitutional dysregulation of the RAS-MAPK signaling pathway. Here we report that germline NRAS mutations conferring enhanced stimulus-dependent MAPK activation account for some cases of this disorder. These findings provide evidence for an obligate dependency on proper NRAS function in human development and growth.
Cirstea IC; Kutsche K; Dvorsky R; Gremer L; Carta C; Horn D; Roberts AE; Lepri F; Merbitz-Zahradnik T; König R; Kratz CP; Pantaleoni F; Dentici ML; Joshi VA; Kucherlapati RS; Mazzanti L; Mundlos S; Patton MA; Silengo MC; Rossi C; Zampino G; Digilio C; Stuppia L; Seemanova E; Pennacchio LA; Gelb BD; Dallapiccola B; Wittinghofer A; Ahmadian MR; Tartaglia M; Zenker M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/113464
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