Human blood basophils synthesize interleukin-2 binding sites
نویسندگان
چکیده
منابع مشابه
Human blood basophils synthesize interleukin-2 binding sites.
Recent data suggest that basophils express receptors for a variety of lymphokines. In this study we present the biochemical characterization of the interleukin-2 (IL-2) receptor on the basophil surface membrane. Highly enriched populations (purity: 92% to 99%) of blood basophils were obtained from chronic granulocytic leukemia (CGL) patients (n = 3) by negative selection using monoclonal antibo...
متن کاملInterleukin 3 activates human blood basophils via high-affinity binding sites.
Pure populations of human basophilic granulocytes were obtained from chronic myeloid leukemia (CML) blood by negative selection using a mixture of monoclonal antibodies and complement. 125I-radiolabeled recombinant human interleukin 3 (rhIL-3) bound to purified basophils in a specific manner. Quantitative binding studies and Scatchard plot analyses performed on samples from two donors revealed ...
متن کاملHuman basophils express interleukin-4 receptors.
Interleukin-4 (IL-4), a multipotential lymphokine reputed to play an important role in the regulation of immune responses, interacts with a variety of hemopoietic target cells through specific cell surface membrane receptors. The present study was designed to investigate whether human basophils express IL-4 binding sites. For this purpose, basophils were enriched to homogeneity (93% and 98% pur...
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Interleukin-l3 (IL-13) is a recently discovered immunoregulatory cytokine. The cellular sources of IL-13 and the regulation of its expression are largely unknown. Here we show that human basophils produce IL-13 in response to IgE-receptor (IgER) crosslinking, IL-3, IL-3 plus C5a. but not C5a alone. Human basophils express IL-13 in a restricted manner since, apart from IL-4, no other cytokines e...
متن کاملHuman blood basophils produce interleukin-13 in response to IgE-receptor-dependent and -independent activation.
Interleukin-13 (IL-13) is a recently discovered immunoregulatory cytokine. The cellular sources of IL-13 and the regulation of its expression are largely unknown. Here we show that human basophils produce IL-13 in response to IgE-receptor (IgER) crosslinking, IL-3, IL-3 plus C5a, but not C5a alone. Human basophils express IL-13 in a restricted manner since, apart from IL-4, no other cytokines e...
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ژورنال
عنوان ژورنال: Blood
سال: 1990
ISSN: 0006-4971,1528-0020
DOI: 10.1182/blood.v75.9.1820.1820