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Gastroenterology Commons

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2009

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Full-Text Articles in Gastroenterology

Ras Activity Levels Control The Development Of Pancreatic Diseases, Baoan Ji, Lilian Tsou, Huamin Wang, Sebastian Gaiser, David Chang, Jaroslaw Daniluk, Yan Bi, Tobias Grote, Daniel Longnecker, Craig Logsdon Sep 2009

Ras Activity Levels Control The Development Of Pancreatic Diseases, Baoan Ji, Lilian Tsou, Huamin Wang, Sebastian Gaiser, David Chang, Jaroslaw Daniluk, Yan Bi, Tobias Grote, Daniel Longnecker, Craig Logsdon

Dartmouth Scholarship

Differentiated pancreatic acinar cells expressing endogenous levels of mutant K-Ras do not spontaneously develop pancreatic ductal adenocarcinoma (PDAC). However, we hypothesized that acinar cells would develop PDAC in the presence of Ras activity levels mimicking those of human tumor cells.We measured Ras activity in PDAC cells from mice and humans using a Raf pull-down assay. We compared the effects of acinar cell expression of mutant K-Ras at endogenous and elevated levels on Ras activity and on the development of PDAC.