[EN] LYSOSOME-CLEAVABLE LINKER<br/>[FR] LIEUR CLIVABLE PAR DES LYSOSOMES
申请人:UCL BUSINESS PLC
公开号:WO2013121175A1
公开(公告)日:2013-08-22
The present invention relates to a linker for forming conjugates of a protein or peptide with a therapeutically active agent and which comprise a thiomaleamic acid moiety that is susceptible to cleavage under the pH conditions prevalent in the lysosome.
The present invention relates to a linker for forming conjugates of a protein or peptide with a therapeutically active agent and which comprise a thiomaleamic acid moiety that is susceptible to cleavage under the pH conditions prevalent in the lysosome.
The present invention relates to a linker for forming conjugates of a protein or peptide with a therapeutically active agent and which comprise a thiomaleamic acid moiety that is susceptible to cleavage under the pH conditions prevalent in the lysosome.
Acid-cleavable thiomaleamic acid linker for homogeneous antibody–drug conjugation
作者:Lourdes Castañeda、Antoine Maruani、Felix F. Schumacher、Enrique Miranda、Vijay Chudasama、Kerry A. Chester、James R. Baker、Mark E. B. Smith、Stephen Caddick
DOI:10.1039/c3cc45220d
日期:——
In this communication we describe a novel acid-cleavable linker strategy for antibodyâdrug conjugation. Functional disulfide bridging of the single interchain disulfide bond of a trastuzumab Fab fragment yields a homogeneous antibodyâdrug 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.