The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Viral Capsid DNA Aptamer Conjugates as Multivalent Cell-Targeting Vehicles
Open accessAbstract
Nucleic acid aptamers offer significant potential as convenient and evolvable targeting groups for drug delivery. To attach them to the surface of a genome-free viral capsid carrier, an efficient oxidative coupling strategy has been developed. The method involves the periodate-mediated reaction of phenylene diamine substituted oligonucleotides with aniline groups installed on the outer surface of the capsid shells. Up to 60 DNA strands can be attached to each viral capsid with no apparent loss of base-pairing capabilities or protein stability. The ability of the capsids to bind specific cellular targets was demonstrated through the attachment of a 41-nucleotide sequence that targets a tyrosine kinase receptor on Jurkat T cells. After the installation of a fluorescent dye on the capsid interior, capsids bearing the cell-targeting sequence showed significant levels of binding to the cells relative to those of control samples. Colocalization experiments using confocal microscopy indicated that the capsids were endocytosed and trafficked to lysosomes for degradation. These observations suggest that aptamer-labeled capsids could be used for the targeted drug delivery of acid-labile prodrugs that would be preferentially released upon lysosomal acidification.
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Metadata
- Authors
- Tong, G. J., Hsiao, S. C., Carrico, Z. M., & Francis, M. B.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-07-15
- Volume
- 131
- Issue
- 31
- Pages
- 11174-11178
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2087670364
- Cited by
- 224
- References
- 3
- FWCI
- 9.02
- Type
- journal article
- Language
- en
- Open access
- green
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