Journal of Experimental Medicine, Vol 150, 1260-1264, Copyright © 1979 by Rockefeller University Press
Cyclic adenosine monophosphate response to prostaglandin E2 on subpopulations of human lymphocytes
JS Goodwin, PA Kaszubowski and RC Williams Jr
Receptors for prostaglandin E2 or histamine were measured on subpopulations
of human lymphocytes, using the cyclic AMP increase after exposure to
prostaglandin or histamine as an indicator for the presence of receptors.
The cyclic AMP response to prostaglandin E2 was similar in unfractionated
lymphocytes and the T-enriched and T-depleted fractions. Within the
T-enriched population, T cells bearing a receptor for the Fc portion of IgG
(T gamma-cells) had a 27.4-fold rise in cyclic AMP after exposure to
prostaglandin E2, whereas the remaining T cells (non-T gamma cells) had a
fourfold increase. It would appear that prostaglandin receptors are
concentrated on a small subfraction of T gamma cells, comprising
approximately 15% of the T-cell population. The cyclic AMP response to
histamine was less than twofold in all lymphocyte fractions.