Enhancement of iodinin solubility by encapsulation into cyclodextrin nanoparticles

J Enzyme Inhib Med Chem. 2018 Dec;33(1):370-375. doi: 10.1080/14756366.2017.1421638.

Abstract

Phenazine is known to regroup planar nitrogen-containing heterocyclic compounds. It was used here to enhance the bioavailability of the biologically important compound iodinin, which is near insoluble in aqueous solutions. Its water solubility has led to the development of new formulations using diverse amphiphilic α-cyclodextrins (CDs). With the per-[6-desoxy-6-(3-perfluorohexylpropanethio)-2,3-di-O-methyl]-α-CD, we succeeded to get iodinin-loaded nanoformulations with good parameters such as a size of 97.9 nm, 62% encapsulation efficiency and efficient control release. The study presents an interesting alternative to optimizing the water solubility of iodinin by chemical modifications of iodinin.

Keywords: Iodinin; amphiphilic α-cyclodextrin; encapsulation; nanoparticles; solubility.

MeSH terms

  • Animals
  • Apoptosis / drug effects
  • Cell Line, Tumor
  • Dose-Response Relationship, Drug
  • Molecular Structure
  • Nanoparticles / chemistry*
  • Particle Size
  • Phenazines / chemistry*
  • Phenazines / pharmacology
  • Rats
  • Solubility
  • Structure-Activity Relationship
  • Surface Properties
  • alpha-Cyclodextrins / chemistry*
  • alpha-Cyclodextrins / pharmacology

Substances

  • Phenazines
  • alpha-Cyclodextrins
  • phenazine
  • iodinin

Grants and funding

The present work was supported by the “Partenariats Hubert Curien” (PHC) (Campus France, Programme Aurora, Grant Agreement No. 27460VC), by the Norwegian Research Council [Grant Agreement No. 213191/F11] and the Norwegian Cancer Society (Project no.: 4529447). Pr. Marc Le Borgne also thanks the “Institut français d’Oslo” for their support via the Åsgard Programme 2010. This scientific work was also supported by financial support from Rhône-Alpes region through an Explo’ra Sup scholarship (academic year 2012–2013).