pH-sensitive chitosan nanoparticles loaded with dolutegravir as milk and food admixture for paediatric anti-HIV therapy

Carbohydr Polym. 2021 Mar 15:256:117440. doi: 10.1016/j.carbpol.2020.117440. Epub 2020 Nov 23.

Abstract

The present study aims to develop Chitosan-based polymeric nanoparticles of anti-HIV drug Dolutegravir, to aid appropriate dose adjustment and ease of oral administration as milk and food admixture for children. The isolated Chitosan from the crab shell species Portunus Sanguinolentus has been characterized for their physicochemical properties. Nanoparticles were developed with varying ratio of drug: Chitosan and assessed for particle size (140-548 nm), zeta potential (+26.1 mV) with a maximum of 75 % drug content. Nanoparticles exhibited improved stability and drug release in the 0.1 N HCl medium compared to pure drug. The MTT assay and the Syncytia inhibition assay in C8166 (T-lymphatic cell line) infected with HIVIIIB viral strain, which showed better therapeutic efficiency and lesser cytotoxicity compared to the pure drug. In consonance with the data obtained, the use of chitosan from a novel source for drug delivery carrier has opened exceptional prospects for delivering drugs efficiently to paediatrics.

Keywords: Biopolymer; Chitosan; Dolutegravir; Nanoparticle; Portunus sanguinolentus; Spray drying.

MeSH terms

  • Administration, Oral
  • Animal Shells
  • Animals
  • Anti-HIV Agents / pharmacology*
  • Biopolymers / chemistry
  • Cell Line
  • Child
  • Chitosan / chemistry*
  • Crustacea
  • Drug Carriers / chemistry*
  • Drug Liberation
  • Food
  • HIV Infections / drug therapy*
  • Heterocyclic Compounds, 3-Ring / administration & dosage*
  • Humans
  • Hydrogen-Ion Concentration
  • Kinetics
  • Magnetic Resonance Spectroscopy
  • Milk / chemistry*
  • Nanoparticles / chemistry*
  • Oxazines / administration & dosage*
  • Particle Size
  • Piperazines / administration & dosage*
  • Pyridones / administration & dosage*
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
  • Spray Drying
  • Temperature

Substances

  • Anti-HIV Agents
  • Biopolymers
  • Drug Carriers
  • Heterocyclic Compounds, 3-Ring
  • Oxazines
  • Piperazines
  • Pyridones
  • Chitosan
  • dolutegravir