Expression of Blood Group-Related Antigens, ABH, Lewisa, Lewisb, Lewisx, Lewisy, CA19-9, and CSLEX1 in Early Cancer, Intestinal Metaplasia, and Uninvolved Mucosa of the Stomach
Open Access
- 1 July 1992
- journal article
- research article
- Published by Oxford University Press (OUP) in American Journal of Clinical Pathology
- Vol. 98 (1) , 67-75
- https://doi.org/10.1093/ajcp/98.1.67
Abstract
The expression of blood group-related antigens, A, B, H type 2, Lewis type 1 (Lewisa [Lea] and Lewisb [Leb]), Lewis type 2 (Lewisx [Lex] and Lewisy [Ley]), sialylated Lea (CA19-9), and sialylated Lex (CSLEX1), was analyzed sequentially with immunohistochemical methods in early gastric cancer, intestinal metaplasia, and uninvolved gastric mucosa obtained from 35 surgical specimens of patients who underwent gastrectomy. The high incidence of the inappropriate expression of Lewis type 1 antigens and the deletion of H and Lewis type 2 antigens was observed similarly in patients with cancer and intestinal metaplasia. The acquisition of CA19-9 and CSLEX1 and the deletion of B antigen frequently were found in intestinal-type cancer and all types of intestinal metaplasia. The simultaneous deletion of A antigen was detected only in the combination of intestinal-type cancer and incomplete-type intestinal metaplasia. Thus the present study shows that similar changes of tissue antigenicities exist in early gastric cancer and intestinal metaplasia.Keywords
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