Title : Effect of abemaciclib (LY2835219) on enhancement of chemotherapeutic agents in ABCB1 and ABCG2 overexpressing cells in vitro and in vivo.

Pub. Date : 2017 Jan 15

PMID : 27816545






5 Functional Relationships(s)
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1 Effect of abemaciclib (LY2835219) on enhancement of chemotherapeutic agents in ABCB1 and ABCG2 overexpressing cells in vitro and in vivo. abemaciclib ATP binding cassette subfamily B member 1 Homo sapiens
2 Here, we found that LY2835219 remarkably enhanced the efficacy of chemotherapeutic drugs in ABCB1 or ABCG2 over-expressing cancer cells in vitro and in vivo. abemaciclib ATP binding cassette subfamily B member 1 Homo sapiens
3 Furthermore, LY2835219 significantly increased the intracellular accumulation of doxorubicin (DOX) and rhodamine 123 (Rho 123) by inhibiting ABCB1 or ABCG2-mediated drug efflux in the transporters-overexpressing cells. abemaciclib ATP binding cassette subfamily B member 1 Homo sapiens
4 Mechanistically, LY2835219 is likely a competitive inhibitor of ABCB1 and ABCG2 for its competition with [125I]-iodoarylazidoprazosin for photo affinity labeling of the transporters. abemaciclib ATP binding cassette subfamily B member 1 Homo sapiens
5 In conclusion, these findings revealed a novel role of LY2835219 in reversing ABCB1 or ABCG2-mediated MDR, which may be benefit to the patients with MDR cancer for combinational therapy. abemaciclib ATP binding cassette subfamily B member 1 Homo sapiens