A versatile method for conjugating lipid nanoparticles on T cells through combination of click chemistry and metabolic glycoengineering

Author:

Li Xin1ORCID,Weller Sven2,Clergeaud Gael2,Andresen Thomas L.2

Affiliation:

1. School of Pharmaceutical Science and Technology Tianjin University Tianjin China

2. Department of Health Technology Technical University of Denmark Lyngby Denmark

Abstract

AbstractCell‐mediated drug delivery by conjugating nanomedicine to the surface of living cells is a promising strategy for enhancing the efficacy of both drug delivery and cell therapy. It exploits the tissue homing properties of the specific cell types to overcome in vivo barriers and forms a drug depot by directly putting the therapeutic payload in target cells. An important concern of developing this system is the method to conjugate nanoparticles on cells. Herein, we developed a bioorthogonal T cell conjugation strategy using SPAAC click chemistry, which allows controllable and highly efficient conjugation without affecting the viability and functions of the cytotoxic T lymphocytes. Azide groups were incorporated on the surface of T cells through metabolic glycoengineering, followed by reacting with dibenzylcyclooctyne (DBCO) modified lipid nanoparticles (LNPs). LNPs can be conjugated to T cells, allowing for the loading of different drug molecules on the cells. The metabolic engineering and click reaction approach provides a simple and versatile strategy to conjugate NPs to living cells and enable the development of sophisticated therapeutic cell products.

Publisher

Wiley

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