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

Acid-cleavable thiomaleamic acid linker for homogeneous antibody-drug conjugation.
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DOI:
10.1039/c3cc45220d
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发表时间:
2013-09-25
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Caddick S
Caddick S
中科院分区:
其他
文献类型:
--
作者:
Castañeda L;Maruani A;Schumacher FF;Miranda E;Chudasama V;Chester KA;Baker JR;Smith ME;Caddick S

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Homogeneous antibody–drug conjugation is affected using a novel thiomaleamic acid linker that is stable at physiological temperature and pH, but quantitatively cleaves at lysosomal pH to release the drug payload. 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.
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