Antibody-peptide conjugates for targeted inhibition of cysteine proteases

We developed a rational approach to design peptide-based covalent inhibitors and coupled the inhibitors with antibodies for cell-specific delivery. We used this platform to generate antibody-peptide inhibitor conjugates (APICs) that target a family of proteases, the cysteine cathepsins. Our drug design and targeted delivery approach ensure specific inhibition and achieve therapeutic efficacy in different cancer cells and osteoclasts.