Volume 63, Issue 49 e202409849
Communication

Molecularly Imprinted Polymers for Highly Specific Bioorthogonal Catalysis Inside Cells

Dr. Zhiguo Gao

Dr. Zhiguo Gao

School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210089 China

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009 China

These authors contributed equally.

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Quanlin Shao

Quanlin Shao

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009 China

These authors contributed equally.

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Jiaqi Xing

Jiaqi Xing

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009 China

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Yi Liang

Yi Liang

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009 China

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Fanzhen Meng

Fanzhen Meng

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009 China

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Jian Chen

Jian Chen

School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210089 China

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Dr. Wei He

Corresponding Author

Dr. Wei He

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009 China

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Dr. Yaojia Li

Corresponding Author

Dr. Yaojia Li

School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 China

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Prof. Dr. Baiwang Sun

Corresponding Author

Prof. Dr. Baiwang Sun

School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210089 China

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First published: 05 August 2024
Citations: 2

Graphical Abstract

The molecularly imprinted enzyme mimics (MIEs) containing a copper center and specific substrate binding domain, could perform highly-specific abiotic transformation inside cells, particularly in a gain-of-functions. Importantly, Cu-MIEs exclusively catalyze target substrates and retain its superb performance even in the presence of copper-poisoning molecules like glutathione (GSH).

Abstract

Transition metal catalysts (TMCs) mediated bioorthogonal catalysis expand the chemical possibilities within cells. Developing synthetic TMCs tools that emulate the efficiency and specificity of natural metalloenzymes is a rewarding yet challenging endeavor. Here, we highlight the potential of molecularly imprinted enzyme mimics (MIEs) containing a Cu center and specific substrate binding domain, for conducing dimethylpropargyloxycarbonyl (DmProc) cleavage reactions within cells. Our studies reveal that the Cu-MIEs act as highly specific guides, precisely catalyzing target substrates, even in glutathione (GSH)-rich cellular environments. By adapting templates similar to the target substrates, we evolved Cu-MIEs activity to a high level and provided a method to broaden its scope to other unique substrates. This system was applied to a thyroid hormone (T3)-responsive gene switch model, inducing firefly luciferase expression by T3 in cells. This approach verifies that MIEs effectively rescue DmProc-bearing T3 prodrugs and seamlessly integrating themself into cellular biocatalytic networks.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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