Development of three-dimensional bacterial cellulose/chitosan scaffolds: Analysis of cell-scaffold interaction for potential application in the diagnosis of ovarian cancer

Int J Biol Macromol. 2019 Sep 15:137:1050-1059. doi: 10.1016/j.ijbiomac.2019.07.050. Epub 2019 Jul 8.

Abstract

Bacterial cellulose (BC) has emerged as a biomaterial for diverse biomedical applications owing to its unique structural, physico-chemical, mechanical, and biological features. Its porous geometry and three-dimensional fibrous structure allow the impregnation of various materials into its matrix. The current study was aimed to fabricate 3D scaffolds of bacterial cellulose and chitosan (BC-Chi) through a one-step ex situ solution impregnation strategy and analyze the scaffold interaction with the ovarian cancer cell lines (A2780). Field emission scanning electron microscopy (FE-SEM) showed successful impregnation of chitosan into the BC matrix. Phase-contrast and confocal microscopy analyses revealed that human ovarian cancer cell lines (A2780) were adhered not only to the surface but deeply infiltrated into the matrix of BC-Chi scaffold. WST-1 assay, histology analysis, and cytoskeleton and nuclear staining showed high viability, proliferation, and infiltration of A2780 cell lines into the scaffold. The RT-PCR analysis revealed a decreased mRNA level of Notch receptors, indicating a strong cell-scaffold interaction. The improved biocompatibility, non-toxicity, and 3D structure of fabricated BC-Chi scaffold justify its potential applications diagnosis of ovarian cancer in vivo.

Keywords: 3D scaffolds; Bacterial cellulose; Biocompatibility; Cancer diagnosis; Chitosan.

MeSH terms

  • Cell Communication / drug effects*
  • Cell Line, Tumor
  • Cell Movement / drug effects
  • Cell Survival / drug effects
  • Cellulose / chemistry*
  • Chitosan / chemistry*
  • Chitosan / pharmacology*
  • Down-Regulation / drug effects
  • Female
  • Gluconacetobacter xylinus / chemistry*
  • Humans
  • Mechanical Phenomena
  • Ovarian Neoplasms / pathology*
  • Receptors, Notch / metabolism

Substances

  • Receptors, Notch
  • Cellulose
  • Chitosan