A quantitative investigation of fucosylated serum glycoproteins with application to esophageal adenocarcinoma

作者:Mann Benjamin; Madera Milan; Klouckova Iveta; Mechref Yehia; Dobrolecki Lacey E; Hickey Robert J; Hammoud Zane T; Novotny Milos V*
来源:Electrophoresis, 2010, 31(11): 1833-1841.
DOI:10.1002/elps.201000046

摘要

Although glycoproteomic studies provide unique opportunities for cancer research, it has been necessary to develop specific methods for analysis of oncologically interesting glycoproteins. We describe a general, multimethodological approach for quantitative glycoproteomic analysis of fucosylated glycoproteins in human blood serum. A total of 136 putative fucosylated glycoproteins were identified with very high confidence in three clinically relevant sample pools (N = 5 for each), with a mean CV of 3.1% observed for replicate analyses. Two samples were collected from subjects diagnosed with esophagus disease states, high-grade dysplasia plus esophageal adenocarcinoma, while the third sample was representative of a disease-free condition. Some glycoproteins, observed to be significantly upregulated in esophageal adenocarcinoma, i.e. more than twofold higher than in the disease-free condition, are briefly discussed. Further investigation will be necessary to validate these findings; however, the method itself is demonstrated to be an effective tool for quantitative glycoproteomics of clinical samples.

  • 出版日期2010-6