Methods for the inhibition of cancer metastasis mediated by endo

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai

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514 25, 514 53, 514 54, 514 61, 514 62, A61K 31715

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061212334

ABSTRACT:
Methods and compositions are disclosed for the inhibition of cancer metastases mediated by endothelial adhesion molecules. The present invention discloses that sialyl Le.sup.a and di-sialyl Le.sup.a, which are expressed at the surface of cancer cells, function as a binding partner for LEC-CAMs, such as ELAM-1, which are expressed at the surface of endothelial cells. The present invention also discloses that LEC-CAMs, such as ELAM-1, involved in cancer metastasis share a carbohydrate domain common to both sialyl Le.sup.a and sialyl Le.sup.x. Antibodies, saccharides, glycoconjugates, enzyme inhibitors and other compounds may be used in the methods of the present invention to inhibit the binding of malignant cells to endothelial cells for a variety of purposes in vivo and in vitro.

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