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Silva ARP, Guimarães M, Rabelo J, Belen L, Perecin C, Farias J, Picado Madalena Santos JH, Rangel-Yagui CO. Recent advances in the design of antimicrobial peptide conjugates. J Mater Chem B 2022; 10:3587-3600. [DOI: 10.1039/d1tb02757c] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antimicrobial peptides (AMPs) are ubiquitous host defense peptides characterized by antibiotic activity and lower propensity for developing resistance compared to classic antibiotics. While several AMPs have shown activity against antibiotic-sensitive...
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Hock N, Racaniello GF, Aspinall S, Denora N, Khutoryanskiy VV, Bernkop‐Schnürch A. Thiolated Nanoparticles for Biomedical Applications: Mimicking the Workhorses of Our Body. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2102451. [PMID: 34773391 PMCID: PMC8728822 DOI: 10.1002/advs.202102451] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/13/2021] [Indexed: 05/03/2023]
Abstract
Advances in nanotechnology have generated a broad range of nanoparticles (NPs) for numerous biomedical applications. Among the various properties of NPs are functionalities being related to thiol substructures. Numerous biological processes that are mediated by cysteine or cystine subunits of proteins representing the workhorses of the bodies can be transferred to NPs. This review focuses on the interface between thiol chemistry and NPs. Pros and cons of different techniques for thiolation of NPs are discussed. Furthermore, the various functionalities gained by thiolation are highlighted. These include overall bio- and mucoadhesive, cellular uptake enhancing, and permeation enhancing properties. Drugs being either covalently attached to thiolated NPs via disulfide bonds or being entrapped in thiolated polymeric NPs that are stabilized via inter- and intrachain crosslinking can be released at the diseased tissue or in target cells under reducing conditions. Moreover, drugs, targeting ligands, biological analytes, and enzymes bearing thiol substructures can be immobilized on noble metal NPs and quantum dots for therapeutic, theranostic, diagnostic, biosensing, and analytical reasons. Within this review a concise summary and analysis of the current knowledge, future directions, and potential clinical use of thiolated NPs are provided.
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Affiliation(s)
- Nathalie Hock
- Thiomatrix Forschungs und Beratungs GmbHTrientlgasse 65Innsbruck6020Austria
| | | | - Sam Aspinall
- Reading School of PharmacyUniversity of ReadingWhiteknights PO Box 224, Room 122 (Chemistry and Pharmacy Building)ReadingRG66DXUK
| | - Nunzio Denora
- Department of Pharmacy – Pharmaceutical SciencesUniversity of Bari “Aldo Moro”Bari70125Italy
| | - Vitaliy V. Khutoryanskiy
- Reading School of PharmacyUniversity of ReadingWhiteknights PO Box 224, Room 122 (Chemistry and Pharmacy Building)ReadingRG66DXUK
| | - Andreas Bernkop‐Schnürch
- Department of Pharmaceutical Technology, Institute of PharmacyUniversity of InnsbruckInnrain 80/82Innsbruck6020Austria
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Zavoiura O, Brunner B, Casteels P, Zimmermann L, Ozog M, Boutton C, Helms MW, Wagenaar T, Adam V, Peterka J, Metz-Weidmann C, Deschaght P, Scheidler S, Jahn-Hofmann K. Nanobody-siRNA Conjugates for Targeted Delivery of siRNA to Cancer Cells. Mol Pharm 2021; 18:1048-1060. [PMID: 33444501 DOI: 10.1021/acs.molpharmaceut.0c01001] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Targeted extrahepatic delivery of siRNA remains a challenging task in the field of nucleic acid therapeutics. An ideal delivery tool must internalize siRNA exclusively into the cells of interest without affecting the silencing activity of siRNA. Here, we report the use of anti-EGFR Nanobodies (trademark of Ablynx N.V.) as tools for targeted siRNA delivery. A straightforward procedure for site-specific conjugation of siRNA to an engineered C-terminal cysteine residue on the Nanobody (trademark of Ablynx N.V.) is described. We show that siRNA-conjugated Nanobodies (Nb-siRNA) retain their binding to EGFR and enter EGFR-positive cells via receptor-mediated endocytosis. The activity of Nb-siRNAs was assessed by measuring the knockdown of a housekeeping gene (AHSA1) in EGFR-positive and EGFR-negative cells. We demonstrate that Nb-siRNAs are active in vitro and induce mRNA cleavage in the targeted cell line. In addition, we discuss the silencing activity of siRNA conjugated to fused Nbs with various combinations of EGFR-binding building blocks. Finally, we compare the performance of Nb-siRNA joined by four different linkers and discuss the advantages and limitations of using cleavable and noncleavable linkers in the context of Nanobody-mediated siRNA delivery.
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Affiliation(s)
- Oleksandr Zavoiura
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Bodo Brunner
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Peter Casteels
- Ablynx, a Sanofi Company, Technologiepark 21, 9052 Zwijnaarde, Belgium
| | - Luciana Zimmermann
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Matthias Ozog
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Carlo Boutton
- Ablynx, a Sanofi Company, Technologiepark 21, 9052 Zwijnaarde, Belgium
| | - Mike W Helms
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Timothy Wagenaar
- Sanofi, Research, 640 Memorial Drive, Cambridge, 02139 Massachusetts, United States
| | - Volker Adam
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Josefine Peterka
- Sanofi, TIDES platform, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | | | - Pieter Deschaght
- Ablynx, a Sanofi Company, Technologiepark 21, 9052 Zwijnaarde, Belgium
| | - Sabine Scheidler
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Kerstin Jahn-Hofmann
- Sanofi, Biologics Research, Industriepark Höchst, 65926 Frankfurt am Main, Germany
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Sengee M, Eksteen JJ, Nergård SL, Vasskog T, Sydnes LK. Preparation and Assessment of Self-Immolative Linkers for Therapeutic Bioconjugates with Amino- and Hydroxyl-Containing Cargoes. Bioconjug Chem 2019; 30:1489-1499. [DOI: 10.1021/acs.bioconjchem.9b00214] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Myagmarsuren Sengee
- NORCE Norwegian Research Centre AS, P.O. Box
6434, Tromsø Science Park, NO-9294 Tromsø, Norway
| | - J. Johannes Eksteen
- NORCE Norwegian Research Centre AS, P.O. Box
6434, Tromsø Science Park, NO-9294 Tromsø, Norway
| | - Silje Lillemark Nergård
- Department of Pharmacy, UiT The Arctic University of Norway, P.O. Box 6050, Langnes, NO-9037 Tromsø, Norway
| | - Terje Vasskog
- NORCE Norwegian Research Centre AS, P.O. Box
6434, Tromsø Science Park, NO-9294 Tromsø, Norway
- Department of Pharmacy, UiT The Arctic University of Norway, P.O. Box 6050, Langnes, NO-9037 Tromsø, Norway
| | - Leiv K. Sydnes
- NORCE Norwegian Research Centre AS, P.O. Box
6434, Tromsø Science Park, NO-9294 Tromsø, Norway
- Department of Chemistry, University of Bergen, P.O. Box 7800, NO-5020 Bergen, Norway
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