Binding properties and histamine release in variants of rat basophilic leukemia cells with changes in the IgE receptor

1987 ◽  
Vol 14 (4) ◽  
pp. 287-292 ◽  
Author(s):  
M STRACKE ◽  
L BASCIANO ◽  
R SIRAGANIAN
Author(s):  
R.F. Stump ◽  
J.R. Pfeiffer ◽  
JC. Seagrave ◽  
D. Huskisson ◽  
J.M. Oliver

In RBL-2H3 rat basophilic leukemia cells, antigen binding to cell surface IgE-receptor complexes stimulates the release of inflammatory mediators and initiates a series of membrane and cytoskeletal events including a transformation of the cell surface from a microvillous to a lamellar topography. It is likely that dynamic properties of the IgE receptor contribute to the activation of these responses. Fewtrell and Metzger have established that limited crosslinking of IgE-receptor complexes is essential to trigger secretion. In addition, Baird and colleagues have reported that antigen binding causes a rapid immobilization of IgE-receptor complexes, and we have demonstrated an apparent increase with time in the affinity of IgE-receptor complexes for antigen.


1996 ◽  
Vol 71 ◽  
pp. 79
Author(s):  
Manabu Takarada ◽  
Hiroyuki Hamakawa ◽  
Yoshinori Goto ◽  
Hiroaki Tanioka ◽  
Kazutaka Maeyama

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