Changes of protein glycosylation in the course of radiotherapy

J Pharm Biomed Anal. 2016 Jan 25:118:380-386. doi: 10.1016/j.jpba.2015.11.010. Epub 2015 Nov 14.

Abstract

This is the first study of changes in protein glycosylation due to exposure of human subjects to ionizing radiation. Site specific glycosylation patterns of 7 major plasma proteins were analyzed; 171 glycoforms were identified; and the abundance of 99 of these was followed in the course of cancer radiotherapy in 10 individual patients. It was found that glycosylation of plasma proteins does change in response to partial body irradiation (∼ 60 Gy), and the effects last during follow-up; the abundance of some glycoforms changed more than twofold. Both the degree of changes and their time-evolution showed large inter-individual variability.

Keywords: Glycosylation; Glycosylation pattern; Head and neck cancer; Proteomics; Radiotherapy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aged, 80 and over
  • Amino Acid Sequence
  • Blood Proteins / genetics
  • Blood Proteins / metabolism*
  • Blood Proteins / radiation effects*
  • Female
  • Glycosylation / radiation effects
  • Head and Neck Neoplasms / blood*
  • Head and Neck Neoplasms / genetics
  • Head and Neck Neoplasms / radiotherapy*
  • Humans
  • Male
  • Middle Aged
  • Molecular Sequence Data

Substances

  • Blood Proteins