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  • Title: [An analog of formyl-met-leu-phe effects the movement of human leukocytes].
    Author: Cavalletti T, Spisani S, Gavioli R, Marangoni C, Scatturin A, Vertuani G, Traniello S.
    Journal: Boll Soc Ital Biol Sper; 1984 Jun 30; 60(6):1103-9. PubMed ID: 6548144.
    Abstract:
    Two tripeptides, related to the chemotactic formyl-peptide, are tested for its ability to affect random and directional locomotion and to induce chemotaxis of polymorphonuclear leukocytes. The results indicate that the methyl ester of formyl-methyonyl-leucyl-phenylalanine possesses a biological activity towards human phagocytes, including a chemotactic potency, comparable to that of unmodified peptide. Therefore, the free carboxyl group does not seem essential to generate active leukoattractant. On the contrary, the replacement of the formyl group by the butyloxycarbonyl results in a drastic loss of biological activity. Our data may indicate that the two formyl-peptides interact with the same binding site on the cell membrane.
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