Carbohydrate-containing molecules as potential biomarkers in colon cancer

Joo, Eun Ji
Weyers, Amanda
Li, Guoyun
Gasimli, Leyla
Li, Lingyun
Choi, Won Jun
Lee, Kyung Bok
Linhardt, Robert J.
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Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
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Carbohydrate-containing molecules as potential biomarkers in colon cancer, E.-J. Joo, A. Weyers, G. Li, L. Gasimli, L. Li, W. J. Choi, K. B. Lee, R. J. Linhardt, Omics, 18, 231-241, 2014..
Glycans play a critical role in physiological and pathological processes through interaction with a variety of ligands. Altered expression and dysregulation of these molecules can cause aberrant cellular function such as malignancy. Glycomics provide information of the structure and function of glycans, glycolipids, and glycoproteins such as proteoglycans, and may help to predict cancer development and progression as biomarkers. In this report, we compared the expression of proteoglycans, the content and structure of glycosaminoglycans and glycolipids between patient-matched normal and cancer tissues obtained from colon cancer patients. Tumor-related proteoglycans, glypican-3, and syndecan-1 showed downregulation in cancer tissues compared to normal tissues. In cancer tissue, the total amount of chondroitin sulfate (CS)/dermatan sulfate and heparan sulfate were lower and, interestingly, the level of disaccharide units of both 4S6S (CS-E) and 6S (CS-C) were higher compared to normal tissue. Also, overall lipids including glycolipids, a major glycomics target, were analyzed by hydrophilic interaction liquid chromatography mass spectrometry. Increase of lyso-phosphatidylcholine (phospholipid), sphingomyelin (sphigolipid), and four types of glycolipids (glucosylceramide, lactosylceramide, monosialic acid ganglioside, and globoside 4) in cancer tissue showed the possibility as potential biomarkers in colon cancer. While requiring the need for careful interpretation, this type of broad investigation gives us a better understanding of pathophysiological roles on glycosaminoglycans and glycolipids and might be a powerful tool for colon cancer diagnosis.
Omics, 18, 231-241
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The Linhardt Research Labs.
The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)
The Linhardt Research Labs Online Collection
Rensselaer Polytechnic Institute, Troy, NY
OMICS A Journal of Integrative Biology