Respiratory syncytial virus (RSV) is an important cause of lower respiratory tract disease, particularly prevalent in children, and for which there is no efficient vaccine currently available. In addition the viral and host mechanisms that modulate the immune response and disease pathogenesis remain unknown. In August
Using CX3CR1-transfected human embryonic kidney cells Tripp et al. found that the RSV G glycoprotein binds to the CX3CR1 receptor — a receptor specific for the CX3C chemokine fractalkine and subsequent induction of leukocyte chemotaxis. In addition, G glycoprotein binding through the CX3C receptor appeared to facilitate the viral infection (Nat Immunol 2001, ...