(A) (i) Flow cytometric and histological analysis of livers obtained from Cx3cr1cre/+:R26-rfp:Cx3cr1gfp/+ mice. In these mice GFP expression acts as a direct reporter for CX3CR1 expression, while RFP expression is controlled by Cre recombinase. (ii) Analysis of fetal liver and adult liver and Kupffer cells of Cx3cr1gfp/+ mice.
(B) Flow cytometric analysis of the intestinal lamina propria of DTx-treated Cd11c-dtr mice that received 7 days earlier a Ly6C+ YFP monocyte graft isolated from tamoxifen-treated Cx3cr1creER/+:R26-yfp mice. Results are representative of two experiments involving 3 mice per group.
(C) Flow cytometric analysis of peritoneal lavages of Cx3cr1creER/+:R26-rfp mice administered a single tamoxifen gavage (5 mg) one day following an intra-peritoneal thioglycollate injection. Rightmost graph shows phenotypic shift of monocyte-derived cells between three weeks and 8 weeks. Results are representative of two independent experiments involving 3 mice per group.