Among them, MDR1/ABCB1, also known as p-glycoprotein (P-gp), are transporters or inhibitors of 324 approved drugs and investigational candidates in the DrugBank database [10], and they facilitate the transmembrane transport of paclitaxel and other anti-tumor drugs as well as rhodamine 123 DNA dyes. Here, ABCB1 is linked to neoplasm.