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  • Title: Occurrence of tumor-associated ganglioside antigens with Hanganutziu-Deicher antigenic activity on human melanomas.
    Author: Hirabayashi Y, Higashi H, Kato S, Taniguchi M, Matsumoto M.
    Journal: Jpn J Cancer Res; 1987 Jun; 78(6):614-20. PubMed ID: 3112076.
    Abstract:
    The specificity of antibody to NeuGc alpha 2-3Gal beta 1-4Glc-cer (GM3(NeuGc] was carefully reexamined by the method of enzyme-immunostaining on a thin layer plate. The affinity-purified antibody was found to react with NeuGc alpha 2-8NeuGc alpha 2-3Gal beta 1-4Glc-cer (GD3(NeuGc-NeuGc] and NeuGc alpha 2-8NeuAc alpha 2-3Gal beta 1-4Glc-cer (GD3(NeuGc-NeuAc], but not with NeuAc alpha 2-8NeuGc alpha 2-3Gal beta 1-4Glc-cer (GD3(NeuAc-NeuGc)) or NeuAc alpha 2-8NeuAc alpha 2-3Gal beta 1-4Glc-cer (GD3(NeuAc-NeuAc]. From this result together with the previous results, it (GD3(NeuAc-NeuAc], From this result together with the previous results, it could be concluded that the antibody recognizes the outer portion of molecular species of sialic acids in the gangliosides. By using this antibody, the expression of Hanganutziu-Deicher (HD) gangliosides could be demonstrated in human malignant melanoma. The molecular species were different among individuals examined. Among HD-antigenic gangliosides, GM3(NeuGc) was commonly found in melanoma tissues. One of the patients examined expressed GD3(NeuGc-NeuGc) and GD 3(NeuGc-NeuAc), which may be characteristic gangliosides in human melanomas, since these gangliosides could not be detected in human colon cancer or human fetal tissues.
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