CX3CL1 and asthma: Interestingly, the changes in expression of lectin galactoside-binding soluble 9 (LGALS9) [31], chemokine (C-X3-C motif) ligand 1 (CX3CL1) [32] and complement component 5a receptor 1 (C5AR1) [33] have been previously reported to be associated with asthma.