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  • Title: The effect of angiotensin II on human mononuclear cell reactivity: suppression of PHA-P-induced thymidine incorporation.
    Author: Simon MR, Engel DE, Weinstock JV, Roi LD.
    Journal: Immunol Invest; 1985 Oct; 14(5):389-400. PubMed ID: 4077153.
    Abstract:
    Recent evidence suggests that angiotensin II may participate in the regulation of inflammation. We therefore studied the effects of angiotension II on human peripheral blood mononuclear cell reactivity. Peripheral blood mononuclear cell suspensions stimulated with PHA-P revealed decreased thymidine incorporation when simultaneously cultured for 48 or 72 hours with angiotensin II. Experiments were next conducted to determine whether angiotensin II acted directly on lymphocytes. Complete monocyte depletion (greater than 99.5%) resulted in low PHA-P-induced reactivity which was still inhibited by the addition of angiotensin II. Purified (greater than 99.5%) lymphocytes incubated with angiotensin II prior to reconstitution of mixed mononuclear cell suspensions led to reduced PHA-P-stimulated thymidine incorporation. These findings suggest that angiotensin II can effect mononuclear cell uptake possibly through actions on the lymphocyte population.
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