In addition to chemokines, a variety of other mediators released by cells of the innate and acquired immune systems trigger or enhance specific aspects of the inflammatory response. They are released by tissue mast cells, blood platelets, and a variety of leukocytes, including neutrophils, monocytes/macrophages, eosinophils, basophils, and lymphocytes. In addition to these sources, plasma contains four interconnected mediator-producing systems: the kinin system, the clotting system, the fibrinolytic system, and the complement system. The first three systems share a common intermediate, Hageman factor, as illustrated in Figure 15-10. When tissue damage occurs, these four systems are activated to form a web of interacting systems that generate a number of mediators of inflammation.
Was this article helpful?
If you suffer with asthma, you will no doubt be familiar with the uncomfortable sensations as your bronchial tubes begin to narrow and your muscles around them start to tighten. A sticky mucus known as phlegm begins to produce and increase within your bronchial tubes and you begin to wheeze, cough and struggle to breathe.