CXCL9 and rheumatoid arthritis: Furthermore, while serum concentrations of CXCL9 and CXCL10, two IFNg-induced chemokines able to bind CXCR3, were correlated with CXCL11 exclusively in the pSS group (p<0.0001), they could not discriminate pSS from RA or SLE (see Table 2).