NPM-ALK: The Prototypic Member of a Family of Oncogenic Fusion Tyrosine Kinases..     ///    "Finally, using ALCL as an example, we will examine three key signalling pathways activated by NPM-ALK that contribute to proliferation and survival in ALCL.. "    ///    "The NPM-ALK fusion protein generated by this translocation is a constitutively active tyrosine kinase, and much research has focused on characterizing the signalling pathways and cellular activities this oncoprotein regulates in ALCL. "