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    • 50. 发明专利
    • Humanized m-csf mice
    • NZ724014A
    • 2018-12-21
    • NZ72401412
    • 2012-02-14
    • UNIV YALEREGENERON PHARMAINSTITUTE FOR RES IN BIOMEDICINE IRB
    • MURPHY ANDREW JSTEVENS SEANRATHINAM CHOZHAVENDANEYNON ELIZABETHMANZ MARKUSFLAVELL RICHARDYANCOPOULOS GEORGE D
    • A01K67/027C12Q1/6897C12Q1/68
    • Disclosed is a humanized M-CSF mouse, comprising a nucleic acid sequence incorporated into the genome of the humanized M-CSF mouse, which sequence encodes a human M-CSF protein and is operably linked to a regulatory sequence 5’ of the mouse M-CSF structural gene locus; wherein the mouse is immunocompromised for a mouse immune system as a result of one or more of the following: sub-lethal irradiation, the mouse is a NOD-SCID mouse, the mouse is a NOD-scid γc−/− (NSG) mouse, and the mouse is a NOD/Shi-scid γc−/− (NOG) mouse; and wherein the mouse expresses M-CSF RNA encoded by the nucleic acid sequence in bone marrow, spleen, blood, liver, brain, lung, testis and kidney Further disclosed is a method for making an activated human monocyte and/or activated human macrophage, comprising exposing a humanized M-CSF mouse to an immune stimulant under conditions sufficient for human monocytes and/or macrophages in the mouse to become activated, and isolating human monocytes and/or human macrophages from the mouse, wherein the mouse comprises a nucleic acid sequence incorporated into the genome of the mouse, which sequence encodes a human M-CSF protein and is operably linked to the endogenous promoter of the mouse M-CSF gene at the mouse M-CSF locus, wherein the mouse is immunocompromised for a mouse immune system, wherein the mouse comprises human hematopoietic cells, and wherein the mouse expresses M-CSF RNA encoded by the nucleic acid sequence in bone marrow, spleen, blood, liver, brain, lung, testis and kidney. Further disclosed is a method of isolating biologically active human M-CSF, the method comprising isolating biologically active human MCSF from a humanized M-CSF mouse, wherein the mouse comprises a nucleic acid sequence incorporated into the genome of the mouse, which sequence encodes a human M-CSF protein and is operably linked to the endogenous promoter of the mouse M-CSF gene at the mouse M-CSF locus, wherein the mouse is immunocompromised for a mouse immune system, and wherein the mouse expresses M-CSF RNA encoded by the nucleic acid sequence in bone marrow, spleen, blood, liver, brain, lung, testis and kidney.