Doxorubicin hydrochloride (Adriamycin) 属于蒽环类抗生素,是人类 DNA 拓扑异构酶 I II 抑制剂 (IC50=0.8 2.67 μM)。Doxorubicin hydrochloride 具有细胞毒性和抗肿瘤活性。Doxorubicin hydrochloride 可降低 AMPK 及其下游靶蛋白乙酰辅酶 A 羧化酶的磷酸化,还可诱导凋亡和自噬。
CL2-SN-38, a part of the antibody-drug conjugate (ADC), can conjugate with the anti-Trop-2-humanized antibody hRS7. SN-38 is an inhibitor of DNAtopoisomerase I.
CH-0793076, a hexacyclic camptothecin analog, is an active drug and major metabolite of TP300. CH-0793076 is efficacious against cells expressing BCRP (breast cancer resistance protein). CH-0793076 inhibits DNAtopoisomerase I (IC50: 2.3 μM).