Abundance-ratio-based semiquantitative analysis of site-specific N-linked glycopeptides present in the plasma of hepatocellular carcinoma patients

Hyoung Joo Lee, Hyun Jeong Cha, Jong Sun Lim, Sun Hee Lee, Si Young Song, Hoguen Kim, William S. Hancock, Jong Shin Yoo, Young-Ki Paik

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Aberrant structures of site-specific N-linked glycans are closely associated with the tumorigenesis of hepatocellular carcinoma (HCC), one of the most common fatal cancers worldwide. Vitronectin (VTN) is considered a candidate glycobiomarker of HCC. In this study, we describe a reliable and simple quantification strategy based on abundance ratios of site-specific N-linked glycopeptides of VTN to screen for potential biomarkers. A total of 14 unique N-linked glycans corresponding to 27 unique N-linked glycopeptides were characterized at three N-linked sites (Asn-86, -169, and -242) present in VTN. These glycans could be good candidate markers for HCC. Among these glycans, the abundance ratio of two representative glycoforms (fucosyl vs non-fucosyl) was significantly increased in HCC plasma relative to normal plasma. This strategy was also successfully applied to another potential HCC biomarker, haptoglobin. Furthermore, we demonstrate that our approach employing tandem mass tag (TMT) and target N-linked glycopeptides of VTN is a useful tool for quantifying specific glycans in HCC plasma relative to normal plasma. Our strategy represents a simple and potentially useful screening platform for the discovery of cancer-specific glycobiomarkers.

Original languageEnglish
Pages (from-to)2328-2338
Number of pages11
JournalJournal of Proteome Research
Volume13
Issue number5
DOIs
Publication statusPublished - 2014 May 2

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Glycopeptides
Vitronectin
Polysaccharides
Hepatocellular Carcinoma
Plasmas
Biomarkers
Haptoglobins
Screening
Neoplasms
Carcinogenesis

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Chemistry(all)

Cite this

Lee, Hyoung Joo ; Cha, Hyun Jeong ; Lim, Jong Sun ; Lee, Sun Hee ; Song, Si Young ; Kim, Hoguen ; Hancock, William S. ; Yoo, Jong Shin ; Paik, Young-Ki. / Abundance-ratio-based semiquantitative analysis of site-specific N-linked glycopeptides present in the plasma of hepatocellular carcinoma patients. In: Journal of Proteome Research. 2014 ; Vol. 13, No. 5. pp. 2328-2338.
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Abundance-ratio-based semiquantitative analysis of site-specific N-linked glycopeptides present in the plasma of hepatocellular carcinoma patients. / Lee, Hyoung Joo; Cha, Hyun Jeong; Lim, Jong Sun; Lee, Sun Hee; Song, Si Young; Kim, Hoguen; Hancock, William S.; Yoo, Jong Shin; Paik, Young-Ki.

In: Journal of Proteome Research, Vol. 13, No. 5, 02.05.2014, p. 2328-2338.

Research output: Contribution to journalArticle

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