Ghobadloo SM, Gargaun A, Casselman R, Muharemagic D, Berezovski MV. Aptamer-facilitated cryoprotection of viruses.
ACS Med Chem Lett 2014;
5:1240-4. [PMID:
25408838 DOI:
10.1021/ml500322h]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 09/23/2014] [Indexed: 11/29/2022] Open
Abstract
Global vaccination and gene therapy programs have an urgent demand for stabilization of viral vectors at low temperature. We used a quadramer, a bridge-connected DNA tetra-aptamer to antivesicular stomatitis virus (VSV), as a viral cryoprotectant. Results showed that the tetravalent antivirus DNA aptamers protect viral activity during multiple freeze-thaw cycles, shield from neutralizing antibodies, and decrease aggregation of viral particles.
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