Volume 133, Issue 11 pp. 5847-5851
Zuschrift

Cell-Selective siRNA Delivery Using Glycosylated Dynamic Covalent Polymers Self-Assembled In Situ by RNA Templating

Nabila Laroui

Nabila Laroui

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

These authors contributed equally to this work.

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Maëva Coste

Maëva Coste

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

These authors contributed equally to this work.

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Dandan Su

Dandan Su

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

Institut Européen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, CC 047, 34095 Montpellier, France

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Dr. Lamiaa M. A. Ali

Dr. Lamiaa M. A. Ali

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

Department of Biochemistry, Medical Research Institute, University of Alexandria, 21561 Alexandria, Egypt

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Dr. Yannick Bessin

Dr. Yannick Bessin

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

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Dr. Mihail Barboiu

Dr. Mihail Barboiu

Institut Européen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, CC 047, 34095 Montpellier, France

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Dr. Magali Gary-Bobo

Dr. Magali Gary-Bobo

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

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Dr. Nadir Bettache

Corresponding Author

Dr. Nadir Bettache

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

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Dr. Sébastien Ulrich

Corresponding Author

Dr. Sébastien Ulrich

Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France

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First published: 08 December 2020
Citations: 4

Dedicated to Professor Eric T. Kool on the occasion of his 60th birthday

Abstract

Dynamic covalent libraries enable exploring complex chemical systems from which bioactive assemblies can adaptively emerge through template effects. In this work, we studied dynamic covalent libraries made of complementary bifunctional cationic peptides, yielding a diversity of species from macrocycles to polymers. Although polymers are typically expressed only at high concentration, we found that siRNA acts as a template in the formation of dynamic covalent polymers at low concentration in a process guided by electrostatic binding. Using a glycosylated building block, we were able to show that this templated polymerization further translates into the multivalent presentation of carbohydrate ligands, which subsequently promotes cell uptake and even cell-selective siRNA delivery.

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