Selective isolation of hyaluronan by solid phase adsorption to silica

Anal Biochem. 2022 Sep 1:652:114769. doi: 10.1016/j.ab.2022.114769. Epub 2022 Jun 2.

Abstract

A solid phase adsorption method for selective isolation of hyaluronan (HA) from biological samples is presented. Following enzymatic degradation of protein, HA can be separated from sulfated glycosaminoglycans, other unsulfated glycosaminoglycans, nucleic acids, and proteolytic fragments by adsorption to amorphous silica at specific salt concentrations. The adsorbed HA can be released from silica using neutral and basic aqueous solutions. HA ranging in size from ∼9 kDa to MDa polymers has been purified by this method from human serum and conditioned medium of cultured cells.

Keywords: Conditioned medium; Glycosaminoglycan; Hyaluronan; Isolation; Serum; Silica.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, N.I.H., Extramural

MeSH terms

  • Adsorption
  • Cells, Cultured
  • Glycosaminoglycans
  • Humans
  • Hyaluronic Acid*
  • Silicon Dioxide*

Substances

  • Glycosaminoglycans
  • Silicon Dioxide
  • Hyaluronic Acid