CXCL10 and systemic lupus erythematosus: These reports included a total of almost 2000 SLE patients and 2500 normal controls in mostly Asian, but a few European and North American cohorts, and three reports measured IP-10 in serum and urine, 11 reports measured IP-10 in serum only, and one report measured IP-10 in urine only, and only six reports focused on LN.