2 MONOCLONAL-ANTIBODIES RECOGNIZING CARBOHYDRATE EPITOPES ON NEURAL ADHESION MOLECULES INTERFERE WITH CELL-INTERACTIONS

被引：53

作者：

FAHRIG, T ^{[1
]}

SCHMITZ, B ^{[1
]}

WEBER, D ^{[1
]}

KUCHEREREHRET, A ^{[1
]}

FAISSNER, A ^{[1
]}

SCHACHNER, M ^{[1
]}

机构：

[1] UNIV HEIDELBERG,DEPT NEUROBIOL,NEUENHEIMER FELD 364,W-6900 HEIDELBERG,GERMANY

来源：

EUROPEAN JOURNAL OF NEUROSCIENCE | 1990年 / 2卷 / 02期

关键词：

cell adhesion; L3; epitope; L4; neurite outgrowth;

D O I：

10.1111/j.1460-9568.1990.tb00407.x

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We have studied two monoclonal antibodies raised against crude fractions of membrane glycoproteins from adult mouse brain and found them to react with two carbohydrate epitopes expressed on several neural cell adhesion molecules. Other identified and unidentified glycoproteins from different cell types, organs and species were also recognized by these antibodies. Both epitopes are N‐glycosidically linked mannosidic or hybrid type oligosaccharides and co‐expressed on all the glycoproteins so far tested. In spite of their remarkable similarities, the glycan epitopes are different as shown by ELISA competition assays. In microexplant outgrowth and cell adhesion assays, both antibodies interfere with neural cell adhesion, migration, and neurite outgrowth. These observations, together with previous studies on the L2/HNK‐1 glycan (Künemund et al., 1988), indicate that adhesion molecules carry various carbohydrate epitopes mediating different cell interactions in in vitro assays. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：153 / 161

页数：9

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