Abstract:Lymphocytes from human tonsils and adenoids and three compounds – pokeweed mitogen (PWM), cholera toxin and prostaglandin E1 (PGE1) – were used to study the relationship of immunoglobulin (Ig) synthesis and secretion and intra-cellular levels of cyclic 3′5′-adenosine monophosphate (cAMP). PWM-stimulated lymphocytes synthesized and secreted increased amounts of both IgG and IgA during 120 h of culture, but cAMP levels were not increased during 60 min incubation with PWM. However, both chol… Show more
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