PFK-015 is an effective inhibitor of PFKFB3 with IC50 of 110 nM (recombinant PFKFB3) and inhibits PFKFB3 activity in cancer cells with IC50 of 20 nM. PFK15 can produce effective growth inhibition in a series of cancer cells. PFK15 also reduced F26BP (fructose 2,6-bisphosphate), glucose uptake, and intracellular ATP levels in Jurkat T-cell leukemia cells and H522 lung adenocarcinoma cells. PFK15 causes a rapid induction of apoptosis in transformed cells, has adequate pharmacokinetic properties, suppresses the glucose uptake and growth of Lewis lung carcinomas in syngeneic mice, and yields antitumor effects in three human xenograft models of cancer in athymic mice that are comparable to U.S. Food and Drug Administration-approved chemotherapeutic agents[3]. The antitumor drug PFK-158 and its analogs PFK-015 and 3PO can exert synergistic effects with colistin against colistin-resistant Enterobacteriaceae, including mcr-1-positive or high-level-colistin-resistant (HLCR) isolates, as shown by a checkerboard assay[4].
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