The effect of oligopeptides on the C3b receptor-mediated functions of rat macrophages

Gabriella Fóris, G. Füst, G. A. Medgyesi

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Effects of various substances known to influence macrophage functions on the adherence of C3b-coated sheep erythrocytes (E-C3b) and their phagocytosis by elicited rat peritoneal macrophages (PM) has been studied. Different oligopeptides (OP) having a chemotactic effect, such as tuftsin, angiotensin II (At II) and the OP-fraction of a lymphokine preparation (LK-OP) increased both adherence and phagocytosis of E-C3b in a concentration-dependent fashion. In contrast, neither substances influencing the membrane cation transport nor prostaglandins (PG) and cyclic nucleotides significantly changed the C3b receptor (C3bR)-dependent effector functions of macrophages. Enhanced functions of the C3bR were not associated with an increased capability of PMs for intracellular killing of Candida albicans.

Original languageEnglish
Pages (from-to)7-11
Number of pages5
JournalImmunology letters
Issue number1
Publication statusPublished - Jan 1983



  • C3b receptor
  • intracellular killing
  • macrophage
  • oligopeptides
  • phagocytosis

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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