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New paper out on JAK2/STAT5 signaling as therapeutic target

The JAK2/STAT5 pathway is a novel potential target of therapy in canine mastocytoma, which is a frequently diagnosed cutaneous neoplasms in dogs. In non-resectable mastocytoma patients, novel targeted drugs are often applied. The transcription factor STAT5 has been implicated in the survival of human neoplastic mast cells. We have now reported the JAK2/STAT5 pathway as a novel target in canine mastocytoma.

Activated JAK2 and STAT5 were detected in mastocytoma cell lines. Experimental drugs were found to inhibit proliferation and survival in these cells with the following rank-order of potency: R763 > TG101348 > AZD1480 > pimozide > ruxolitinib > piceatannol. Moreover, synergistic anti-neoplastic effects were obtained by combining pimozide with KIT-targeting drugs (toceranib, masitinib, nilotinib, midostaurin) in NI-1 cells. 
These results are now published in Veterinary and Comparative Oncology and were financed in part by the FWF through SFB F47 "Myeloproliferative Neoplasms".