Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Runx3 Inactivation Is a Crucial Early Event in the Development of Lung Adenocarcinoma
Ist Teil von
Cancer cell, 2013-11, Vol.24 (5), p.603-616
Ort / Verlag
United States: Elsevier Inc
Erscheinungsjahr
2013
Quelle
MEDLINE
Beschreibungen/Notizen
Targeted inactivation of Runx3 in mouse lung induced mucinous and nonmucinous adenomas and markedly shortened latency of adenocarcinoma formation induced by oncogenic K-Ras. RUNX3 was frequently inactivated in K-RAS mutated human lung adenocarcinomas. A functional genetic screen of a fly mutant library and molecular analysis in cultured cell lines revealed that Runx3 forms a complex with BRD2 in a K-Ras-dependent manner in the early phase of the cell cycle; this complex induces expression of p14ARF/p19Arf and p21WAF/CIP. When K-Ras was constitutively activated, the Runx3-BRD2 complex was stably maintained and expression of both p14ARF and p21WAF/CIP was prolonged. These results provide a missing link between oncogenic K-Ras and the p14ARF-p53 pathway, and may explain how cells defend against oncogenic K-Ras.
[Display omitted]
•Runx3 inactivation induces lung adenomas•Runx3 inactivation accelerates malignant progression of K-RasG12D-induced tumors•Runx3 activates the p14ARF-p53 pathway in a K-Ras activity-dependent manner•Restoration of Runx3 in K-Ras-activated lung cancer cell line induces apoptosis