Thiol-ene mediated neoglycosylation of collagen patches: a preliminary study

Langmuir. 2014 Feb 11;30(5):1336-42. doi: 10.1021/la404310p. Epub 2014 Jan 28.

Abstract

Despite the relevance of carbohydrates as cues in eliciting specific biological responses, the covalent surface modification of collagen-based matrices with small carbohydrate epitopes has been scarcely investigated. We report thereby the development of an efficient procedure for the chemoselective neoglycosylation of collagen matrices (patches) via a thiol-ene approach, between alkene-derived monosaccharides and the thiol-functionalized material surface. Synchrotron radiation-induced X-ray photoelectron spectroscopy (SR-XPS), Fourier transform-infrared (FT-IR), and enzyme-linked lectin assay (ELLA) confirmed the effectiveness of the collagen neoglycosylation. Preliminary biological evaluation in osteoarthritic models is reported. The proposed methodology can be extended to any thiolated surface for the development of smart biomaterials for innovative approaches in regenerative medicine.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biocompatible Materials / chemistry*
  • Carbohydrate Sequence
  • Carbohydrates / chemistry*
  • Click Chemistry*
  • Collagen / chemistry*
  • Disease Models, Animal
  • Enzyme-Linked Immunosorbent Assay
  • Glycosylation
  • Male
  • Molecular Structure
  • Osteoarthritis / therapy
  • Photoelectron Spectroscopy
  • Rats
  • Rats, Wistar
  • Spectroscopy, Fourier Transform Infrared
  • Sulfhydryl Compounds / chemistry*

Substances

  • Biocompatible Materials
  • Carbohydrates
  • Sulfhydryl Compounds
  • Collagen