MonoMethylauristatin F

Description

MMAF (Monomethylauristatin F) is an effective tubulin polymerization inhibitor, used as an anti-tumor drug. MMAF (Monomethylauristatin F) is widely used as the cytotoxic component of antibody-conjugated drugs (ADCs), such as Vorsetuzumab mafodotin and SGN-CD19A.

The Uses of MonoMethylauristatin F

Monomethyl Auristatin F is an antimicrotubule agent. A potent mitotic inhibitor.

Biological Activity

MMAF (Monomethylauristatin F) is a potent tubulin polymerization inhibitor and is used as a antitumor agent. MMAF (Monomethylauristatin F) is widely used as a cytotoxic component of antibody-drug conjugates (ADCs) such as vorsetuzumab mafodotin and SGN-CD19A.

Biotechnological Applications

MMAF is a new auristatin derivative with a charged C-terminal phenylalanine that attenuates its cytotoxic activity compared to its uncharged counterpart, Monomethyl auristatin E (MMAE). Because of MMAF is highly toxic, it cannot be used as a drug itself. MMAF induces potent antitumor effects when conjugated via protease cleavable linkers to a monoclonal antibody targeting internalizing, tumor-specific cell surface antigens. The linker to the monoclonal antibody is stable in extracellular fluid, but is cleaved by cathepsin once the conjugate has entered a tumor cell, thus activating the anti-mitotic mechanism.

in vitro

MMAF inhibits anaplastic large cell lymphoma Karpas 299, breast carcinoma H3396, renal cell carcinoma 786-O and Caki-1 cells with IC50s of 119, 105, 257 and 200 nM in vitro cytotoxicity assay.