Expression of CX₃CL1 in lung and kidney of BAC transgenic reporter mice. (A) Confocal imaging analysis of CX₃CL1^cherry:CX₃CR1^gfp lung. (B) Immunohistochemical analysis of CX₃CL1^cherry lung section. Green represents CCSP; red, CX₃CL1/cherry; and blue, nuclear Hoechst staining. (C) Flow cytometric analysis of lung tissue of CX₃CL1^cherry:CX₃CR1^gfp mouse. (D-E) Confocal imaging analysis of CX₃CL1^cherry:CX₃CR1^gfp kidney. (F) Flow cytometric analysis of CX₃CL1^cherry:CX₃CR1^gfp kidney. Red represents CX₃CL1/cherry; and green, CX₃CR1/GFP.