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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Berke, G. Fishelson, Z. |
| Abstract | Interaction of multivalent ligands and cell surface receptors can induce redistribution of these receptors to form patches and caps. In this study, we have investigated the role of nucleus-membrane interaction in the capping of membrane components. Mouse L cells and leukemia EL4 cells were enucleated with the aid of cytochalasin B, yielding cytoplasts and karyoplasts. Capping of surface receptors was induced by allo- and hetero-immune sera followed by fluorescein-conjugated antiglobulin serum, or by the plant lectin concanavalin A. Capping could easily be induced in intact cells, but virtually no capping was detected in the nucleus-free cytoplasts. Interestingly, karyoplasts, which posses cell-membrane components but very little cytoplasm, could be easily induced to cap their surface antigens. Hence, cap formation of membrane components seems not to be an autonomous membrane process. The data suggest that interaction of surface membranes and inner cell components associated with the nucleus is involved in the movement of surface membrane receptors. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 12 |
| Volume Number | 73 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1976-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Cell Membrane Physiology Cell Nucleus Animals Antigens Binding Sites Cell Line Immunology Colchicine Pharmacology Cytochalasin B Mice Receptors, Concanavalin A Research Support, U.S. Gov't, Non-P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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