Antifungal and Mucoadhesive Properties of an Orally Administered Chitosan-Coated Amphotericin B Nanostructured Lipid Carrier (NLC)

Janet Tan Sui Ling, Clive J. Roberts, Nashiru Billa

Research output: Contribution to journalArticleResearchpeer-review

29 Citations (Scopus)

Abstract

Surface-modified nanostructured lipid carriers (NLC) represent a promising mode of drug delivery used to enhance retention of drugs at absorption site. Formulated chitosan-coated amphotericin-B-loaded NLC (ChiAmp NLC) had a size of 394.4 ± 6.4 nm, encapsulation and loading efficiencies of 86.0 ± 3% and 11.0 ± 0.1% respectively. Amphotericin-B release from NLCs was biphasic with no changes in physical properties upon exposure to simulated gastrointestinal conditions. Antifungal properties of Amphotericin-B and ChiAmpB NLC were comparable but ChiAmpB NLC was twice less toxic to red blood cells and ten times safer on HT-29 cell lines. In vitro mucoadhesion data were observed ex vivo, where ChiAmpB NLC resulted in higher retention within the small intestine compared to the uncoated formulation. The data strongly offers the possibility of orally administering a non-toxic, yet effective Amphotericin-B nanoformulation for the treatment of systemic fungal infections.

Original languageEnglish
Article number136
Number of pages11
JournalAAPS PharmSciTech
Volume20
Issue number3
DOIs
Publication statusPublished - Apr 2019
Externally publishedYes

Keywords

  • amphotericin B
  • antifungal
  • chitosan
  • mucoadhesion
  • toxicity

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