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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Petty, H. R. Ware, B. R. |
| Abstract | Electrophoretic light scattering (laser Doppler electrophoresis) has been employed to study the effects of concanavalin A (Con A) and succinyl-Con A on the electrophoretic mobility distribution of resident guinea pig peritoneal macrophages. Con A, a tetrameric lectin, decreases slightly the mean mobility and increases by approximately 3-fold the width of the electrophoretic mobility distribution of resident macrophages. This effect can be abolished by alpha-methyl-D-mannoside, a hapten sugar of Con A. These effects were present in both low (0.010 M) and high (physiological, 0.15 M) ionic-strength media. Since lower ionic strengths correspond to a larger Debye screening distance, these data suggest that the alterations in the electrophoretic mobility distribution are not restricted to the outer portion of the glycocalyx. Succinyl-Con A, a dimeric derivative, was found to have no effect on the mobility distribution. However, the mean mobility decreased and the width increased over 4-fold when succinyl-Con A-treated macrophages were exposed to anti-Con A. These observations indicate that cross-linking of Con A receptors is an important process in the electrokinetic alterations of the macrophage surface. These results may have important consequences for the elucidation of the details of the endocytic mechanism. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 5 |
| Volume Number | 76 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1979-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Concanavalin A Pharmacology Macrophages Drug Effects Receptors, Concanavalin A Metabolism Receptors, Drug Ascitic Fluid Cytology Analogs & Derivatives Electrophoresis Endocytosis Physiology Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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