Monomethyl auristatin E (MMAE) (MMAE), an antimitotic agent, inhibits cell division by blocking the polymerization of tubulin and also has inhibition of antibody-drug conjugates (ADCs) activity.

当与cAC10结合时，Monomethyl auristatin E在CD30+细胞中表现出选择性的细胞毒性，并通过诱导凋亡来引起G2/M期生长停滞和细胞死亡。[1] 当与抗CD79b抗体结合时，抗CD79b-vcMonomethyl auristatin E对体外的大量NHL细胞系具有非常强大和广泛的活性。[2] 当与抗HER2抗体结合时，hertuzumab-vc-Monomethyl auristatin E也能有效地被内化，并强力地杀死过表达HER2的肿瘤细胞。[3]

在Karpas 299 ALCL模型中，cAC10-vcMonomethyl auristatin E（1 mg/kg，i.v.）引起完全且持久的肿瘤消退，而自由Monomethyl auristatin E（0.36 mg/kg）未显示出可检测的抗肿瘤活性。[1] 在NHL小鼠异种移植模型中，anti–CD79b-vcMonomethyl auristatin E（7 mg/kg，p.o.）显著导致持续的完全肿瘤缓解。[2]

Cytotoxicity is measured using Alamar Blue dye reduction assay according to the manufacturer's directions. Briefly, a 40% solution (wt/vol) of Alamar Blue is freshly prepared in complete media just before cultures are added. Ninety-two hours after drug exposure, Alamar Blue solution is added to cells to constitute 10% culture volume. Cells are incubated for 4 hours, and dye reduction is measured on a Fusion HT fluorescent plate reader (Packard Instruments, Meriden, CT). (Only for Reference)