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- Title
Targeting of Tomato Bushy Stunt Virus with a Genetically Fused C-End Rule Peptide.
- Authors
Marchetti, Luca; Simon-Gracia, Lorena; Lico, Chiara; Mancuso, Mariateresa; Baschieri, Selene; Santi, Luca; Teesalu, Tambet
- Abstract
Homing peptides are widely used to improve the delivery of drugs, imaging agents, and nanoparticles (NPs) to their target sites. Plant virus-based particles represent an emerging class of structurally diverse nanocarriers that are biocompatible, biodegradable, safe, and cost-effective. Similar to synthetic NPs, these particles can be loaded with imaging agents and/or drugs and functionalized with affinity ligands for targeted delivery. Here we report the development of a peptide-guided Tomato Bushy Stunt Virus (TBSV)-based nanocarrier platform for affinity targeting with the C-terminal C-end rule (CendR) peptide, RPARPAR (RPAR). Flow cytometry and confocal microscopy demonstrated that the TBSV-RPAR NPs bind specifically to and internalize in cells positive for the peptide receptor neuropilin-1 (NRP-1). TBSV-RPAR particles loaded with a widely used anticancer anthracycline, doxorubicin, showed selective cytotoxicity on NRP-1-expressing cells. Following systemic administration in mice, RPAR functionalization conferred TBSV particles the ability to accumulate in the lung tissue. Collectively, these studies show the feasibility of the CendR-targeted TBSV platform for the precision delivery of payloads.
- Subjects
PEPTIDES; NANOMEDICINE; PEPTIDE receptors; TOMATOES; CONFOCAL microscopy; FLOW cytometry
- Publication
Nanomaterials (2079-4991), 2023, Vol 13, Issue 8, p1428
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano13081428