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Inhibition of Hedgehog Signaling Enhances Delivery of Chemotherapy in a Mouse Model of Pancreatic Cancer

Kenneth P. Olive,Michael A. Jacobetz,Christian J. Davidson,Aarthi Gopinathan,Dominick J.O. McIntyre,Davina J. Honess,Basetti Madhu,Mae A. Goldgraben,Meredith E. Caldwell,David Allard,Kristopher K. Frese,Gina M. DeNicola,Christine Feig,Chelsea Combs,Stephen P. Winter,Heather Ireland-Zecchini,Stefanie Reichelt,William J. Howat,Alex Chang,Mousumi Dhara,Lifu Wang,Felix Rückert,Robert Grützmann,Christian Pilarsky,Kamel Izeradjene,Sunil R. Hingorani,Pearl S. Huang,Susan Davies,William Plunkett,Merrill J. Egorin,Ralph H. Hruban,Nigel Whitebread,Karen McGovern,Julian Adams,Christine A. Iacobuzio‐Donahue,John R. Griffiths,David A. Tuveson

Gemcitabine

Pancreatic cancer

Hedgehog

2009

Pancreatic ductal adenocarcinoma (PDA) is among the most lethal human cancers in part because it is insensitive to many chemotherapeutic drugs. Studying a mouse model of PDA that is refractory to the clinically used drug gemcitabine, we found that the tumors in this model were poorly perfused and poorly vascularized, properties that are shared with human PDA. We tested whether the delivery and efficacy of gemcitabine in the mice could be improved by coadministration of IPI-926, a drug that depletes tumor-associated stromal tissue by inhibition of the Hedgehog cellular signaling pathway. The combination therapy produced a transient increase in intratumoral vascular density and intratumoral concentration of gemcitabine, leading to transient stabilization of disease. Thus, inefficient drug delivery may be an important contributor to chemoresistance in pancreatic cancer.

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“Inhibition of Hedgehog Signaling Enhances Delivery of Chemotherapy in a Mouse Model of Pancreatic Cancer” is a paper by Kenneth P. Olive Michael A. Jacobetz Christian J. Davidson Aarthi Gopinathan Dominick J.O. McIntyre Davina J. Honess Basetti Madhu Mae A. Goldgraben Meredith E. Caldwell David Allard Kristopher K. Frese Gina M. DeNicola Christine Feig Chelsea Combs Stephen P. Winter Heather Ireland-Zecchini Stefanie Reichelt William J. Howat Alex Chang Mousumi Dhara Lifu Wang Felix Rückert Robert Grützmann Christian Pilarsky Kamel Izeradjene Sunil R. Hingorani Pearl S. Huang Susan Davies William Plunkett Merrill J. Egorin Ralph H. Hruban Nigel Whitebread Karen McGovern Julian Adams Christine A. Iacobuzio‐Donahue John R. Griffiths David A. Tuveson published in 2009. It has an Open Access status of “green”. You can read and download a PDF Full Text of this paper here.