Rag1-KO(Rag1-EGFP)

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B6;129S-Rag1tm1(loxP-EGFP-PolyA-loxP-Neo-loxP)Smoc

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NM-KI-00069

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Rag1

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A loxP-EGFP-PolyA-loxP-Neo-loxP expression cassette was knocked into the Rag1 gene start codon site. As a Rag1 knockout mouse model, this stain can be used in subcutaneous inoculation of liver cancer tissues and tumor cells. Tumors can esaily form and grow. The amount of T and B lymphocytes in peripheral blood of mice was extremely low tested by FACS, which was comparable to or lower than that of Nude mice, and there was a significant difference compared with wild type mice. The pathological sections of HE staining of tumor tissues showed that the tumor sections of Rag1 KO mice and Nude mice were similar. This strain has the potential to replace Nude, NOD-SCID mice as a tumor-bearing mouse model.
신청분야:Immunodeficiency,tumor-bearing model

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Figure 1. Generation strategy of Rag1 gene knockout mice.


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Figure 2  Splenocytes cells of C57BL/6J, NOD-SCID, Rag1-/-, and Rag2-/-  mice were isolated. Fractions of T and B cells were characterized using flow cytometry. 


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Figure3. Complete deletion of T and B cells in the blood of Rag1-KO/ Rag2-KO mice.

(A) The peripheral blood samples of C57BL/6, Rag1-KO and Rag2-KO mice were collected to analyze their compositions of T, B and NK cells by FACS.(B) Statistical analysis of sorted cells.

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Figure4. Complete deletion of T and B cells in the spleen of Rag1-KO/ Rag2-KO mice.

(A) The splenocytes of C57BL/6, Rag1-KO and Rag2-KO mice were collected to analyze their compositions of T, B and NK cells by FACS.(B) Statistical analysis of sorted cells.

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Figure5. Complete deletion of T and B cells in the thymus gland of Rag1-KO/ Rag2-KO mice.

(A) The thymocyte of C57BL/6, Rag1-KO and Rag2-KO mice were collected to analyze their compositions of T, B and NK cells by FACS.(B) Statistical analysis of sorted cells.

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Figure6.The establishment of tumor models using A549 lung cancer cells is more effective in Rag1-/- or Rag2-/-   mice.

Table 1. Blood routine tests in Rag1-KO(Rag1-EGFP).

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Table2. Blood biochemistry in Rag1-KO(Rag1-EGFP).

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Shanghai Model Organisms Center Inc has licensed CRISPR-Cas9 technology from Broad Institute

On Dec 16, 2018, Broad Institute and Shanghai Model Organisms Center Inc (SMOC) has entered into a non-exclusive license agreement under which Broad has granted SMOC worldwide rights to commercialize a service platform for genetically modified mouse models under Broad's intellectual property.

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Our vision is to provide researchers all over the world with comprehensive, convenient and professional animal model services to facilitate a simplified and highly-efficient approach towards uncovering the mysteries of life.

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