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[Glycosyltransferase genes as tumor marker]
Jun Nakayama1, Fumiaki Shimizu, Tsutomu Katsuyama
1Department of Pathology, Shinshu University School of Medicine.
Rinsho Byori. the Japanese Journal of Clinical Pathology
|March 26, 2003
Summary
Core 2 beta 1,6-N-acetylglucosaminyltransferase (C2GnT) and alpha 1,4-N-acetylglucosaminyltransferase (alpha 4GnT) are key enzymes in O-glycan biosynthesis. Their detection in cancer cells suggests roles in tumor progression and potential for diagnostic applications.
Area of Science:
- Biochemistry and Molecular Biology
- Glycobiology
- Cancer Research
Context:
- Investigates the role of specific glycosyltransferases in cancer.
- Focuses on Core 2 beta 1,6-N-acetylglucosaminyltransferase (C2GnT) and alpha 1,4-N-acetylglucosaminyltransferase (alpha 4GnT).
- Examines their involvement in mucin-type O-glycan biosynthesis.
Purpose:
- To determine the role of C2GnT in tumor progression of colorectal and lung cancers.
- To assess the utility of alpha 4GnT mRNA detection for identifying circulating gastric cancer cells.
Summary:
- C2GnT expression correlates with tumor progression in colorectal and lung cancers, highlighting the importance of core 2-branched O-glycans.
- Alpha 4GnT is crucial for a unique glycan structure in normal gastric mucosa and is also found in gastric cancer cells.
- Quantitative RT-PCR targeting alpha 4GnT mRNA shows potential for detecting circulating gastric cancer cells in peripheral blood.
Impact:
- Identifies C2GnT as a potential marker for cancer progression.
- Suggests alpha 4GnT as a promising biomarker for early detection of gastric cancer via liquid biopsy.
- Advances understanding of aberrant glycosylation in cancer and its diagnostic implications.