CROSS REFERENCE TO RELATED APPLICATIONS
This application is the national phase entry of International Application No. PCT/CN2016/096711, filed on Aug. 25, 2016, which is based upon and claims priority to Chinese Patent Application No. CN201510404716.2, filed on Jul. 10, 2015, the entire contents of
BACKGROUND
Camptothecin (CPT)-derived drugs, such as irinotecan (CPT-11), are typically used for treating solid brain, colon, and lung tumors, as well as for treating refractory forms of leukemia and lymphoma. See Pommier Nat. Rev. Cancer, 6(10):789 802.
The antineoplastic efficacy of CPT-11 is