Gt rosa 26sor loxp stop loxp rfp

Ccr10-knockout/Egfp-knockin mice on C57BL/6 background (CD45.2⁺) were described^{24 (link)}, and crossed to B6 mice bearing CD45.1 alleles (Jackson lab) to obtain Ccr10^EGFP/EGFP and Ccr10^+/EGFP mice bearing CD45.1 and/or CD45.2 alleles. Rag1^−/− mice, Rorc^−/− mice, Ccr6^−/− mice, Foxp3^−/−, Foxn1^−/−, Foxn1^Cre/Cre, Gt(ROSA)26Sor-loxp-STOP-loxp-RFP (Gt(ROSA)26Sor^RFP/RFP), MuLanDTR and Foxp3-RFP reporter mice were all purchased from Jackson lab. HuLanDTR mice were previously described^{36 (link)}. Ahr^−/− mice were kindly provided by Christopher Bradfield (University of Wisconsin). All the mice were on C57BL/6 background (CD45.2⁺). These mice were also crossed to Ccr10-knockout/Egfp-knockin mice on proper CD45.2⁺ and CD45.1⁺ C57BL/6 background to introduce one or two Ccr10-knockout/Egfp-knockin alleles for the purpose of reporting the CCR10 expression with EGFP or total Ccr10-knockout. Il2rg^−/−Rag2^−/− mice were from Taconic. All mouse experiments were performed in specific pathogen-free conditions (SPF) in accordance with protocols approved by The Pennsylvania State University Institutional Animal Care and Use Committee.