In vitro study | BKM120 has anti-proliferative activity when acting on cell lines deregulated by PI3K, including A2780, U87MG, MCF7 and DU145, with a GI50 of 0.1-0.7 nM. BKM120 induces apoptosis of multiple myeloma cells (ARP1, ARK, MM.1S, MM1.R and U266), resulting in an increase in G1 phase cells and a decrease in S phase cells. BKM120 induces apoptosis in CD138 primary MM cells and is less toxic when acting on CD138 − stromal cells. BKM120 can cause up-regulation of BimS and down-regulation of XIAP. BKM120 acts on human gastric cancer cell lines, reduces mTOR downstream signaling, and has anti-proliferative activity. BKM120 can be enhanced by p-ERK or p-STAT3 in the KRAS mutant gastric cancer cell line. BKM120 in combination with a STAT3 blocker induces apoptosis in cells containing mutated KRAS, with a synergistic effect, but not in KRAS wild-type cells. BKM120 regulates mitotic collapse primarily through Aurora B kinase. BKM120 has anti-proliferative activity when acting on cell lines deregulated by PI3K, including A2780, U87MG, MCF7 and DU145, with a GI50 of 0.1-0.7 nM. BKM120 induces apoptosis of multiple myeloma cells (ARP1, ARK, MM.1S, MM1.R and U266), resulting in an increase in G1 phase cells and a decrease in S phase cells. BKM120 induces apoptosis in CD138 primary MM cells and is less toxic when acting on CD138 − stromal cells. BKM120 can cause up-regulation of BimS and down-regulation of XIAP. BKM120 acts on human gastric cancer cell lines, reduces mTOR downstream signaling, and has anti-proliferative activity. BKM120 can be enhanced by p-ERK or p-STAT3 in the KRAS mutant gastric cancer cell line. BKM120 in combination with a STAT3 blocker induces apoptosis in cells containing mutated KRAS, with a synergistic effect, but not in KRAS wild-type cells. BKM120 regulates mitotic collapse primarily through Aurora B kinase. |
In vivo study | BKM120 completely inhibited pAKTser473 at a dose of 30, 60, or 100 mg/kg for A2780 xenografts. BKM120 showed anticancer activity in the U87MG glioma model at doses of 30 and 60 mg/kg. Treatment of BKM120 daily at a dose of 5 μm/kg in a durable ARP1 SCID murine model resulted in a significant reduction in tumor volume and K-chain levels. at a dose of 30, 60, or 100 mg/kg, BKM120 completely inhibited pAKTser473 in A2780 xenograft. BKM120 showed anticancer activity in the U87MG glioma model at doses of 30 and 60 mg/kg. Treatment of BKM120 daily at a dose of 5 μm/kg in a durable ARP1 SCID murine model resulted in a significant reduction in tumor volume and K-chain levels. |