| Some of the mediators are histamine, heparin, leukotrienes, serotonin, chemotactic factors, tryptase, chymase and prostaglandins. |
| Monocyte chemotactic protein-1 acts as a chemoattractant, promoting infiltration of immune cells, and as a basophil agonist, which leads to histamine release. |
| This is achieved by the propagation of the chemotactic signal, in a manner rather similar to the conduction of a nerve impulse. |
| They are also positively chemotactic to the watery extract from archegonia. |
| The biochemistry and structural biology of the chemotactic phosphorelay is now understood in some detail. |
| The stimulated macrophages secrete chemotactic factors such as lymphokines, which then attract T-helper lymphocytes. |
