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Steffens RC, Folda P, Fendler NL, Höhn M, Bücher-Schossau K, Kempter S, Snyder NL, Hartmann L, Wagner E, Berger S. GalNAc- or Mannose-PEG-Functionalized Polyplexes Enable Effective Lectin-Mediated DNA Delivery. Bioconjug Chem 2024; 35:351-370. [PMID: 38440876 DOI: 10.1021/acs.bioconjchem.3c00546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
A cationic, dendrimer-like oligo(aminoamide) carrier with four-arm topology based on succinoyl tetraethylene pentamine and histidines, cysteines, and N-terminal azido-lysines was screened for plasmid DNA delivery on various cell lines. The incorporated azides allow modification with various shielding agents of different polyethylene glycol (PEG) lengths and/or different ligands by copper-free click reaction, either before or after polyplex formation. Prefunctionalization was found to be advantageous over postfunctionalization in terms of nanoparticle formation, stability, and efficacy. A length of 24 ethylene oxide repetition units and prefunctionalization of ≥50% of azides per carrier promoted optimal polyplex shielding. PEG shielding resulted in drastically reduced DNA transfer, which could be successfully restored by active lectin targeting via novel GalNAc or mannose ligands, enabling enhanced receptor-mediated endocytosis of the carrier system. The involvement of the asialoglycoprotein receptor (ASGPR) in the uptake of GalNAc-functionalized polyplexes was confirmed in the ASGPR-positive hepatocarcinoma cell lines HepG2 and Huh7. Mannose-modified polyplexes showed superior cellular uptake and transfection efficacy compared to unmodified and shielded polyplexes in mannose-receptor-expressing dendritic cell-like DC2.4 cells.
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Affiliation(s)
- Ricarda C Steffens
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
| | - Paul Folda
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
| | - Nikole L Fendler
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Miriam Höhn
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
| | - Katharina Bücher-Schossau
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Susanne Kempter
- Faculty of Physics, LMU Munich, 80539 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
| | - Nicole L Snyder
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Laura Hartmann
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
- Institute for Macromolecular Chemistry, University Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg im Breisgau, Germany
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
| | - Simone Berger
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
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Thalmayr S, Grau M, Peng L, Pöhmerer J, Wilk U, Folda P, Yazdi M, Weidinger E, Burghardt T, Höhn M, Wagner E, Berger S. Molecular Chameleon Carriers for Nucleic Acid Delivery: The Sweet Spot between Lipoplexes and Polyplexes. Adv Mater 2023:e2211105. [PMID: 37001016 DOI: 10.1002/adma.202211105] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/27/2023] [Indexed: 05/03/2023]
Abstract
Taking advantage of effective intracellular delivery mechanisms of both cationizable lipids and polymers, highly potent double pH-responsive nucleic acid carriers are generated by combining at least two lipo amino fatty acids (LAFs) as hydrophobic cationizable motifs with hydrophilic cationizable aminoethylene units into novel sequence-defined molecules. The pH-dependent tunable polarity of the LAF is successfully implemented by inserting a central tertiary amine, which disrupts the hydrophobic character once protonated, resulting in pH-dependent structural and physical changes. This "molecular chameleon character" turns out to be advantageous for dynamic nucleic acid delivery via lipopolyplexes. By screening different topologies (blocks, bundles, T-shapes, U-shapes), LAF types, and LAF/aminoethylene ratios, highly potent pDNA, mRNA, and siRNA carriers are identified, which are up to several 100-fold more efficient than previous carrier generations and characterized by very fast transfection kinetics. mRNA lipopolyplexes maintain high transfection activity in cell culture even in the presence of ≥90% serum at an ultra-low mRNA dose of 3 picogram (≈2 nanoparticles/cell), and thus are comparable in potency to viral nanoparticles. Importantly, they show great in vivo performance with high expression levels especially in spleen, tumor, lungs, and liver upon intravenous administration of 1-3 µg luciferase-encoding mRNA in mice.
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Affiliation(s)
- Sophie Thalmayr
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Melina Grau
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Lun Peng
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Jana Pöhmerer
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Ulrich Wilk
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Paul Folda
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Mina Yazdi
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Eric Weidinger
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Tobias Burghardt
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Miriam Höhn
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Simone Berger
- Pharmaceutical Biotechnology, Center for Nanoscience, Ludwig-Maximilians-Universität Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
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