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  • Title: In vitro modulation of human leucocyte migration and migration inhibitory factor (LIF) activity by cyclic 3',5'-AMP and cyclic 3',5'-GMP.
    Author: Bendtzen K, Palit J.
    Journal: Acta Pathol Microbiol Scand C; 1977 Feb; 85(1):78-80. PubMed ID: 190856.
    Abstract:
    The effects of cyclic 3', 5'-AMP (cAMP) and cyclic 3', 5'-GMP (cGMP) on the in vitro migration of human peripheral blood leucocytes under agarose and on the activity of leucocyte migration inhibitory factor (LIF) was studied. Leucocyte migration was not influenced by dibutyryl cAMP, while the dibutyryl derivative of cGMP significantly stimulated cell migration (1 x 10(-5)M). LIF-treated leucocytes partially escaped migration inhibition in the presence of dibutyryl cAMP (greater than or equal to 1 x 10(-6)M), while dibutyryl cGMP was inefficient. If the parent compounds cAMP and cGMP were tested, almost similar results would be obtained, although at higher concentrations of the drugs. These results represent initial experiments with a view to investigating the possible role of cyclic nucleotides in the expression of LIF activity.
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