By cataloging protein-protein interactions in cell lines, and combining their results with in vivo studies as well as publicly available data, scientists have defined new interactions that could be used diagnostically, and/or harnessed, for well-studied cancer drivers and more obscure proteins alike.

Companion diagnostics-focused Celcuity Inc. CEO Brian Sullivan said the deal with Pfizer Inc. for rights to pan-PI3K/mTOR inhibitor gedatolisib was “an organically developed opportunity, because of the research we had done on gedatolisib” in the course of investigating PI3K inhibitors. “We hadn’t shifted our strategy and said, ‘Oh, let’s start in-licensing drugs.’”

Arriving at MEI Pharma Inc.’s deal with Kyowa Kirin Co. Ltd., focused on phase II-stage ME-401 for B-cell malignancies, was a competitive process that brought large and midsized pharma bidders to the table, MEI Chief Operating Officer David Urso said, but the terms proposed by suitors tended to “look a lot the same.”