Issue 74, 2013

Acid-cleavable thiomaleamic acid linker for homogeneous antibody–drug conjugation

Abstract

In this communication we describe a novel acid-cleavable linker strategy for antibody–drug conjugation. Functional disulfide bridging of the single interchain disulfide bond of a trastuzumab Fab fragment yields a homogeneous antibody–drug conjugate bearing a thiomaleamic acid linker. This linker is stable at physiological pH and temperature, but quantitatively cleaves at lysosomal pH to release the drug payload.

Graphical abstract: Acid-cleavable thiomaleamic acid linker for homogeneous antibody–drug conjugation

Supplementary files

Article information

Article type
Communication
Submitted
11 Jul 2013
Accepted
02 Aug 2013
First published
05 Aug 2013
This article is Open Access
Creative Commons BY license

Chem. Commun., 2013,49, 8187-8189

Acid-cleavable thiomaleamic acid linker for homogeneous antibody–drug conjugation

L. Castañeda, A. Maruani, F. F. Schumacher, E. Miranda, V. Chudasama, K. A. Chester, J. R. Baker, M. E. B. Smith and S. Caddick, Chem. Commun., 2013, 49, 8187 DOI: 10.1039/C3CC45220D

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