期刊
RSC MEDICINAL CHEMISTRY
卷 12, 期 3, 页码 363-369出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0md00310g
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资金
- ETH Zurich
- Swiss National Science Foundation [310030B_182003/1]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program [670603]
This study utilized DNA-encoded library technology and a tyrosinase inhibitor to discover novel ligands for targeting melanoma cells, suggesting a new approach for potential future targeting of melanoma lesions not only through monoclonal antibody reagents but also through small organic ligands.
Human tyrosinase (hTYR) and tyrosinase-related protein 1 (hTYRP1) are closely-related enzymes involved in the synthesis of melanin, which are selectively expressed in melanocytes and, in a pathological context, in melanoma lesions. We used a previously described tyrosinase inhibitor (ThiamidolT) and DNA-encoded library technology for the discovery of novel hTYR and hTYRP1 ligands, that could be used as vehicles for melanoma targeting. Performing de novo selections with DNA-encoded libraries, we discovered novel ligands capable of binding to both hTYR and hTYRP1. More potent ligands were obtained by multimerizing ThiamidolT moieties, leading to homotetrameric structures that avidly bound to melanoma cells, as revealed by flow cytometry. These findings suggest that melanoma lesions may, in the future, be targeted not only by monoclonal antibody reagents but also by small organic ligands.
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