CXCL9 and infection: Interestingly, in 24 h S. aureus L treatment, Cxcl9 and Cxcl10 were up-regulated whereas Il1r2 was down-regulated compared to 24 h S. aureus V. Moreover, Cd14 and Il1r2 were down-regulated in 24 h S. aureus L compared to untreated controls (Table 1 and Supplemental Table S1).The chemokines CXCL9 and CXCL10 are known to promote protective immune response during infections [67].