Understanding the chemokine network has become one of the great challenges
for researchers interested in inflammatory mechanisms and inflammation-base
d diseases. The complexity and diversity of the system provide not only a d
aunting task for its comprehension but also numerous opportunities for deve
lopment of new, targeted therapies. It is now certain that chemokines are i
nvolved as important mediators of allergic inflammation; the fine details a
nd scope of their roles are now under investigation, Presumably, because of
distinct pressures on the immune systems of people living in different geo
graphic regions, genetic variation of ligands, receptors, and regulatory re
gions in the network have emerged. Establishing the roles of these polymorp
hisms in determining disease susceptibility or progression among individual
s and in distinct ethnic groups will provide a basis for improved understan
ding and treatment of allergic diseases.