C57BL/6J (wild type, WT), B6.SJL-
PtprcaPepcb/BoyJ (CD45.1
+), C57BL/6-
Tg(UBC-GFP)30Scha/J (
GFP+), B6.129X1-
Nfe2l2tm1Ywk/J (
Nrf2−/−),
B6.Cg-Msr1tm1Csk/J (
Msr1−/−), B6.129S1-
Cd36tm1Mfe/J (
CD36−/−), B6.129-
Hbatm1(HBA)Tow/Hbbtm2(HBG1,HBB*)Tow (sickle cell disease, SCD) and B6.129-
Hbatm1(HBA)Tow/Hbbtm3(HBG1,HBB*)Tow (non-sickling transgenic control, tgCtrl.) mice were purchased from The Jackson Laboratory (Bar Harbor, ME, USA). GM-CSF-deficient mice (
Csf2−/−) on a C57BL/6J background were bred in-house. B6.129S6-
Gt(ROSA)26Sortm9(CAG-tdTomato)Hze/J (
ROSA26-tdTomatofl/fl or
R26-tdT) and B6.129P2(Cg)-B6.129P2(C)-
Cx3cr1tm2.1(cre/ERT2)Jung/J (
Cx3cr1-CreERT2)
24 (link),25 (link) were kindly provided by Prof. Dr. M. Prinz. Mice carrying the myeloid-specific knockout of the FPN1 gene (
LysMCre/+ Slc40a1fl/fl) were kindly provided by Dr. F. Wang, back-crossed on a C57BL/6 background and bred in house. Unless otherwise indicated age- and sex-matched animals were used at 8 – 12 weeks of age. Where appropriate, animals were randomly assigned to interventions. All protocols were approved by the Animal Review Committee at Massachusetts General Hospital (Protocol No. 2011N000035 and 2015N000044) and by the Federal Ministry of Science, Research and Economy in Austria (Project No. BMWFW-66.011/0115-WF/V/3b/2014).
Theurl I., Hilgendorf I., Nairz M., Tymoszuk P., Haschka D., Asshoff M., He S., Gerhardt L.M., Holderried T.A., Seifert M., Sopper S., Fenn A.M., Anzai A., Rattik S., McAlpine C., Theurl M., Wieghofer P., Iwamoto Y., Weber G.F., Harder N.K., Chousterman B.G., Arvedson T.L., McKee M., Wang F., Lutz O.M., Rezoagli E., Babitt J.L., Berra L., Prinz M., Nahrendorf M., Weiss G., Weissleder R., Lin H.Y, & Swirski F.K. (2016). On-demand erythrocyte disposal and iron recycling requires transient macrophages in the liver. Nature medicine, 22(8), 945-951.