Mechanisms of lymphocyte activation. Binding kinetics of phytohemagglutinin to human lymphocytes.
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چکیده
منابع مشابه
Mechanisms of Lymphocyte Activation
The interactions of phytohemagglutinin (PHA) with normal human lymphocytes were studied utilizing radioiodinated leukoagglutinin (“$I-LPHA) over a concentration spectrum encompassing the entire range of lymphocyte metabolic responses. “jI-LPHA binding was temperature-, pH-, and time-dependent. Ligand association was rapid with at,,* of 3 to 5 min, reaching steady state in 30 min at 22”. Recepto...
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The association of a human genetic deficiency of adenosine deaminase activity with combined immunodeficiency prompted a study of the effects of adenosine and of inhibition of adenosine deaminase activity on human lymphocyte transformation and a detailed study of adenosine metabolism throughout phytohemagglutinin-induced blastogenesis. The adenosine deaminase inhibitor, coformycin, at a concentr...
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Poliovirus replication has been studied in human lymphocytes during the course of blastogenesis under phytohemagglutinin (PHA) stimulation. Enhancement of virus replication in PHA-stimulated leukocyte cultures was due to an increase in number of virus-producing cells. Virus yield was approximately 10 plaque-forming units (PFU) per producing cell, both in stimulated and in nonstimulated cultures...
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The technique of flow cytofluorometry has been employed to assess the response of unfractionated and highly purified human lymphocyte subpopulations to phytohemagglutinin (PHA) and pokeweed mitogen. Normal values for cytofluorometric responses were established and compared to the uptake of tritiated thymidine in simultaneous experiments. Cytofluorometric analysis offered the advantages of incre...
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The need for agents designed to modify immune response in the treatment of patients with viral infection, immunodeficiency, or cancer prompted the present study on the mechanisms of action of isoprinosine, a compound developed for antiviral use and whose therapeutic activity may involve the immune system. The effect of isoprinosine on in vitro proliferation of human peripheral blood lymphocytes...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1977
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)71870-x