Strain specific CXCL10 expression analysis in homozygous B-hCXCL10 mice by ELISA. Serum was isolated from wild-type mice (+/+) and homozygous B-hCXCL10 mice (H/H) and stimulated with 20ug/200ul LPS in vivo, serum was analyzed by ELISA with species-specific CXCL10 ELISA kit. Mouse CXCL10 was detectable in wild-type mice (A). Human CXCL10 was exclusively detectable in homozygous B-hCXCL10 mice but not in wild-type mice (B).