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Related Experiment Videos

[Carbohydrate antigens as cell adhesion molecules]

R Kannagi1

  • 1Aichi Cancer Center, Laboratory of Experimental Pathology, Nagoya, Japan.

Nihon Geka Gakkai Zasshi
|February 1, 1996
PubMed
Summary
This summary is machine-generated.

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Cancer cell metastasis involves cell adhesion molecules like selectins and integrins. This review explores how cell surface carbohydrates mediate cancer cell adhesion to endothelial cells during metastasis.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Cell surface carbohydrate determinants, including sialyl Lewis A and sialyl Lewis X, act as ligands for selectins.
  • These interactions are crucial for cancer cell adhesion to vascular endothelial cells, a key step in hematogenous metastasis.

Purpose of the Study:

  • To review the mechanisms of cancer cell adhesion to endothelial cells during metastasis.
  • To discuss the roles of carbohydrate-selectin interactions and integrins in cancer cell extravasation.
  • To explore alterations in glycosyltransferase activity and abnormal carbohydrate synthesis in cancer cells.

Main Methods:

  • Literature review of studies on cell adhesion molecules and cancer metastasis.
  • Analysis of the molecular interactions between cancer cell surface carbohydrates and endothelial selectins.

Related Experiment Videos

  • Examination of the role of integrins in cancer cell extravasation.

    • Main Results:

    • Primary cancer cell adhesion to endothelial cells is mediated by carbohydrate-selectin interactions.
    • Integrins play a secondary role in cancer cell extravasation after initial adhesion.
    • Altered glycosyltransferase activity leads to the synthesis of abnormal carbohydrate determinants on cancer cells, potentially promoting metastasis.

    Conclusions:

    • Carbohydrate-selectin interactions are critical for the initial steps of hematogenous cancer metastasis.
    • Integrins are involved in the later stages of cancer cell extravasation.
    • Aberrant glycosylation in cancer cells represents a potential therapeutic target for inhibiting metastasis.