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[Carbohydrate antigens and cancer]
E Dabelsteen1, U Mandel, H Clausen
1Sundhedsvidenskabelige Fakultet, Københavns Tandlaegeskole, afdelingen for oral diagnostik.
Ugeskrift for Laeger
|April 26, 1993
Summary
Aberrant glycosylation, changes in cell surface carbohydrates, are key indicators for detecting cancers and premalignant lesions. These tumor markers offer insights into cancer prognosis and metastasis formation.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Context:
- Cancer research traditionally relies on biochemical and molecular understanding to predict disease progression.
- The concept of tumor markers aims to identify cancer cells or precursors based on specific molecular products.
- Aberrant glycosylation, alterations in carbohydrate structures, is increasingly recognized across various human cancers and premalignant conditions.
Purpose:
- To explore the potential of aberrant glycosylation as a diagnostic and prognostic tool in cancer.
- To investigate the role of altered cell surface carbohydrates and glycoconjugates in cancer detection.
- To understand how carbohydrate changes correlate with tumor prognosis and metastasis.
Summary:
- Aberrant glycosylation is a common feature in human cancers and premalignant lesions, affecting cell surface carbohydrates, secreted mucins, and serum glycoproteins.
- Changes in the terminal parts of glycoconjugates are immunogenic and detectable by antibodies, facilitating cancer identification.
- The expression of specific tumor-associated carbohydrates is linked to patient prognosis and their role as ligands for cell adhesion molecules is crucial for understanding metastasis.
Impact:
- Highlights aberrant glycosylation as a promising area for developing novel tumor markers.
- Provides a basis for utilizing carbohydrate-based diagnostics for cancer prognosis.
- Offers insights into the molecular mechanisms of cancer metastasis through carbohydrate-ligand interactions with endothelial cells.