CXCR3 and systemic lupus erythematosus: We next examined if higher levels of CCR6+ Th9, Th17, Th17.1 and CCR4/CXCR3 DN Th cell populations in anti-DNA+ SLE patients were due to the overall increase of CCR6+ Th cells (Fig. 1C) or whether they specifically correlate with anti-DNA status.