Chemokines and Chemokine Receptors

Classic chemoattractants include complement components, formyl peptides and leukotriene B4. In addition, various cytokines are able to elicit directional migration of leukocytes. While molecules such as monocyte-colony stimulating factor or tumor necrosis factor also exert chemotactic activity, the main chemotactic cytokines are a superfamily of molecules known as chemokines (for chemotactic cytokines) [1].