Effect of pH and sodium chloride on the strength and selectivity of the interaction of τ-cyclodextrin with some antisense nucleosides

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9 Citations (Scopus)

Abstract

The influence of pH and the concentration of sodium chloride on the strength and selectivity of the interaction of twelve 8-substituted-2′-deoxyadenosine and sixteen 5-substituted-2′-deoxyuridine derivatives with gamma-cyclodextrin (GCD) have been studied by the spectral mapping technique (SPM). The potency values of the spectral map were regarded as indicators of the capability of antisense nucleosides and GCD to interact simultaneously taking into consideration all relevant data. It has been established that the strength of interaction is highest in acetic and lowest in alkaline solutions, and the selectivities of acidic, alkaline and salt solutions are markedly different. The length of hydrophobic alkyl substituents in antisense molecules influenced both the strength and selectivity of the interaction. The character of the base structure affected only the selectivity.

Original languageEnglish
Pages (from-to)189-196
Number of pages8
JournalInternational Journal of Pharmaceutics
Volume254
Issue number2
DOIs
Publication statusPublished - Mar 26 2003

Keywords

  • Antisense nucleosides
  • Gamma-cyclodextrin
  • Molecular interaction

ASJC Scopus subject areas

  • Pharmaceutical Science

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