Effect of Lewis blood group antigen expression on bacterial adherence to COS-1 cells
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چکیده
منابع مشابه
Influence of Lewis antigen expression by Helicobacter pylori on bacterial internalization by gastric epithelial cells.
The role of Helicobacter pylori lipopolysaccharide (LPS) Lewis antigens in infection is still not well known. We investigated the influence of Lewis antigen expression by H. pylori on its internalization by AGS cells and the epithelium of human gastric xenografts in nude mice using isogenic mutants in LPS biosynthetic genes. In vivo, colonization rates were unaffected by the change in H. pylori...
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The Lewis blood group system comprises two main carbohydrate antigens, Le’ and Leb. Lewis typing has traditionally been based on serologic determinations using erythrocytes and saliva. Several recent studies have demonstrated that erythrocyte Lewis phenotype may change during pregnancy or disease, and inappropriate Lewis antigens have been found in both normal and neoplastic tissue. To evaluate...
متن کاملExpression of the H type 1 blood group antigen during enterocytic differentiation of Caco-2 cells.
We made a comparative study of the structures of the oligosaccharides on the glycoproteins from Caco-2 human colonic adenocarcinoma cells, before and after differentiation. Enterocytic differentiated Caco-2 cells highly express H type 1 blood group antigen on the cell surface as well as activities of brush border membrane hydrolases, such as dipeptidyl peptidase IV and alkaline phosphatase. A s...
متن کاملABH and Lewis blood group expression in colorectal carcinoma.
The expression of ABO(H) and Lewis blood group antigens on 68 colorectal carcinomas from 63 patients was studied by immunohistochemical staining of tissue specimens. The pattern of antigen expression was as follows: ABH was expressed in normal tissue only in secretors and was expressed in the proximal but not distal colon. In tumors, there was net loss of ABH expression in the proximal and net ...
متن کاملInduction of human blood group a antigen expression on mouse cells, using lentiviral gene transduction.
The ABO histo-blood group system is the most important antigen system in transplantation medicine, yet no small animal model of the ABO system exists. To determine the feasibility of developing a murine model, we previously subcloned the human alpha-1,2-fucosyltransferase (H-transferase, EC 2.4.1.69) cDNA and the human alpha-1,3-N-acetylgalactosaminyltransferase (A-transferase, EC 2.4.1.40) cDN...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1994
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.62.7.3022-3026.1994