Volume 135, Issue 13 e202300694
Zuschrift

Dendronized DNA Chimeras Harness Scavenger Receptors To Degrade Cell Membrane Proteins

Chenghong Zhu

Chenghong Zhu

State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023 China

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Weishan Wang

Weishan Wang

State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023 China

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Yan Wang

Yan Wang

State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023 China

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Prof. Yan Zhang

Corresponding Author

Prof. Yan Zhang

State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023 China

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Prof. Jinbo Li

Corresponding Author

Prof. Jinbo Li

State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023 China

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First published: 03 February 2023

Abstract

Bispecific chimeras bridging cell membrane proteins with lysosome-trafficking receptors (LTRs) provide an effective therapeutic approach through lysosomal degradation of disease-relevant targets. Here, we report a novel dendronized DNA chimera (DENTAC) strategy that uses a dendritic DNA to engage cell surface scavenger receptors (SRs) as LTR. Using bioorthogonal strain-promoted alkyne-azide cycloaddition to conjugate the dendritic DNA with protein binder, the resulting DENTAC is able to traffic the protein target into the lysosome for elimination. We demonstrated the utility of DENTAC by degrading oncogenic membrane nucleolin (NCL) and epidermal growth factor receptor (EGFR). The anti-cancer application of NCL-targeting DENTAC was validated in a mouse xenograft model of lung cancer. This work thus presents a new avenue for rapid development of potent degraders against membrane proteins, with also broad research and therapeutic prospects.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.