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  • Title: The limulus clotting reaction.
    Author: Iwanaga S.
    Journal: Curr Opin Immunol; 1993 Feb; 5(1):74-82. PubMed ID: 8452677.
    Abstract:
    Our biochemical studies on the hemolymph coagulation-complement system using limulus indicate that the circulating hemocytes contain at least four serine protease zymogens and one clottable protein, coagulogen, which constitute a cascade triggered by bacterial endotoxins and (1,3)-beta-D-glucan. We also found several antimicrobial substances, tachyplesin peptides and anti-lipopolysaccharide factor, in the hemocytes. These clotting factors and antimicrobial substances are released into the hemolymph in response to lipopolysaccharide, where they cooperate in immobilization and killing of invading microorganisms as a host defense.
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