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Notch Signaling Pathway in Pancreatobiliary Tumors
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The Notch signaling pathway plays an important role both in the development of the ductal systems of the pancreas and the bile ducts as well as in cancer development and progression. The aim of this study was to examine the expression of central proteins of the Notch signaling pathway in pancreatobiliary tumors and its influence on patient survival.

Materials and Methods: We compared the receptors (Notch1, Notch4), activating splicing factors (ADAM17), and target genes (HES1) of the Notch pathway and progenitor cell markers with relevance for the Notch signaling pathway (CD44, MSI1) between pancreatic adenocarcinomas (PDAC, n = 14), intrahepatic cholangiocarcinoma (iCC, n = 24), and extrahepatic cholangiocarcinoma (eCC, n = 22) cholangiocarcinomas.

A significant overexpression of almost all studied components of the Notch signaling pathway can be found in the tumor tissue, however, without a significant influence on patient survival. Therefore, further studies are warranted to draw conclusions on Notch pathway's relevance for patient survival.

The paper "Notch Signaling Pathway in Pancreatobiliary Tumors" is available via Medicina, 2021;57(2):105. Authors are Francesca Borlak, Anja Reutzel-Selke, Anja Schirmeier, Julia Gogolok, Ellen von Hoerschelmann, Igor M Sauer, Johann Pratschke, Marcus Bahra, and Rosa B Schmuck.
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