EGF receptor is required for KRAS-induced pancreatic tumorigenesis.

EGF receptor is required for KRAS-induced pancreatic tumorigenesis.
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EGF受体是KRAS诱导的胰腺肿瘤发生所必需的。

DOI:
10.1016/j.ccr.2012.07.024
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发表时间:
2012-09-11
期刊:
影响因子:
50.3
通讯作者:
Siveke JT
Siveke JT
中科院分区:
医学1区
文献类型:
--
作者:
Ardito CM;Grüner BM;Takeuchi KK;Lubeseder-Martellato C;Teichmann N;Mazur PK;Delgiorno KE;Carpenter ES;Halbrook CJ;Hall JC;Pal D;Briel T;Herner A;Trajkovic-Arsic M;Sipos B;Liou GY;Storz P;Murray NR;Threadgill DW;Sibilia M;Washington MK;Wilson CL;Schmid RM;Raines EW;Crawford HC;Siveke JT

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Initiation of pancreatic ductal adenocarcinoma (PDA) is definitively linked to activating mutations in the KRAS oncogene. However, PDA mouse models show that mutant Kras expression early in development gives rise to a normal pancreas, with tumors forming only after a long latency or pancreatitis induction. Here we show that oncogenic KRAS upregulates endogenous EGFR expression and activation, the latter being dependent upon the EGFR ligand sheddase, ADAM17. Genetic ablation or pharmacological inhibition of EGFR or ADAM17 effectively eliminates KRAS-driven tumorigenesis in vivo. Without EGFR activity, active RAS levels are not sufficient to induce robust MEK/ERK activity, a requirement for epithelial transformation.
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