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Thomas Jefferson University

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Signal transduction

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Full-Text Articles in Medicine and Health Sciences

The Janus Kinase 1 Is Critical For Pancreatic Cancer Initiation And Progression, Hridaya Shrestha, Patrick Rädler, Rayane Dennaoui, Madison Wicker, Nirakar Rajbhandari, Yunguang Sun, Amy Peck, Kerry Vistisen, Aleata Triplett, Rafic Beydoun, Esta Sterneck, Dieter Saur, Hallgeir Rui, Kay-Uwe Wagner May 2024

The Janus Kinase 1 Is Critical For Pancreatic Cancer Initiation And Progression, Hridaya Shrestha, Patrick Rädler, Rayane Dennaoui, Madison Wicker, Nirakar Rajbhandari, Yunguang Sun, Amy Peck, Kerry Vistisen, Aleata Triplett, Rafic Beydoun, Esta Sterneck, Dieter Saur, Hallgeir Rui, Kay-Uwe Wagner

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

Interleukin-6 (IL-6)-class inflammatory cytokines signal through the Janus tyrosine kinase (JAK)/signal transducer and activator of transcription (STAT) pathway and promote the development of pancreatic ductal adenocarcinoma (PDAC); however, the functions of specific intracellular signaling mediators in this process are less well defined. Using a ligand-controlled and pancreas-specific knockout in adult mice, we demonstrate in this study that JAK1 deficiency prevents the formation of KRASG12D-induced pancreatic tumors, and we establish that JAK1 is essential for the constitutive activation of STAT3, whose activation is a prominent characteristic of PDAC. We identify CCAAT/enhancer binding protein δ (C/EBPδ) as a biologically relevant …


Hormone Whodunit: Clues For Solving The Case Of Intratumor Androgen Production., Karen E Knudsen Nov 2014

Hormone Whodunit: Clues For Solving The Case Of Intratumor Androgen Production., Karen E Knudsen

Department of Cancer Biology Faculty Papers

One of the key mechanisms by which prostate cancer cells evade hormone therapy is through intratumor testosterone production. New evidence points toward androstenedione as a potential precursor of intratumor androgen production and furthers nomination of AKR1C3 as a therapeutic target in advanced disease. Clin Cancer Res; 20(21); 5343-5. ©2014 AACR.