Publication Date:
1984-08-24
Description:
Monoclonal antibody Mab D1.1 recognizes on human melanoma cells a ganglioside antigen characterized by an alkali-labile O-acetylated sialic acid residue. Immunochemical analysis showed that this molecule is an O-acetylated product of the neuroectoderm-associated disialoganglioside GD3. Controlled chemical O-acetylation of purified GD3 resulted in the generation of this same epitope. Lysates of human melanoma cells were found to contain O-acetyltransferase activity capable of generating the antigenic epitope recognized by Mab D1.1. Thus, the addition of a single O-acetyl group to a common cell surface-associated ganglioside can create a potentially tumor-specific antigen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cheresh, D A -- Reisfeld, R A -- Varki, A P -- CA 07544/CA/NCI NIH HHS/ -- CA 28420/CA/NCI NIH HHS/ -- GM32373/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Aug 24;225(4664):844-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6206564" target="_blank"〉PubMed〈/a〉
Keywords:
Acetylation
;
Acetyltransferases/metabolism
;
Antibodies, Monoclonal
;
Antigens, Neoplasm/*immunology
;
Cell Line
;
Epitopes/immunology
;
Gangliosides/analysis/*immunology/metabolism
;
Humans
;
Melanoma/enzymology/*immunology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
