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Mice with FVB-derived sequence on chromosome 17 succumb to disseminated virus infection due to aberrant NK cell and T cell responses.

iScience | 2023

Zoonotic arenavirus infections can result in viral hemorrhagic disease, characterized by platelet loss, petechia, and multi-organ injury. The mechanisms governing these outcomes are likely impacted by virus strain and infection dose, as well as an individual's genetic background and immune constitution. To better understand the processes leading to severe pathogenesis, we compared two strains of inbred mice, C57BL/6J (B6) and FVB/NJ (FVB), that have diametrically opposed outcomes during disseminated lymphocytic choriomeningitis virus (LCMV) infection. Infection caused minimal pathogenesis in B6 mice, whereas FVB mice developed acute hepatitis and perished due, in part, to aberrant NK cell and T cell responses. Susceptible mice showed an outgrowth of cytolytic CD4+ T cells and loss of Treg cells. B6 congenic mice with the FVB allele at a 25Mb locus on chromosome 17 recapitulated FVB pathogenesis upon infection. A locus containing a limited number of variants in immune-related genes greatly impacts survival during infection.

Pubmed ID: 38026197 RIS Download

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Associated grants

  • Agency: NIAID NIH HHS, United States
    Id: R01 AI131685
  • Agency: NIAID NIH HHS, United States
    Id: R01 AI138337
  • Agency: NIAID NIH HHS, United States
    Id: R01 AI143894

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C57BL/6J (tool)

RRID:IMSR_JAX:000664

Mus musculus with name C57BL/6J from IMSR.

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C57BL/6J (tool)

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Mus musculus with name C57BL/6J from IMSR.

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PE anti-T-bet (antibody)

RRID:AB_2200542

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PE anti-mouse CD335 (NKp46) (antibody)

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InVivoPlus anti-mouse NK1.1 (antibody)

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PE anti-mouse NK-1.1 (antibody)

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InVivoPlus anti-mouse IL-4 (antibody)

RRID:AB_1107707

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PE anti-mouse IL-17A (antibody)

RRID:AB_315464

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InVivoPlus mouse IgG2b isotype control (antibody)

RRID:AB_1107791

This isotype control targets Unknown Specificity

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InVivoPlus mouse IgG2a isotype control (antibody)

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InVivoPlus anti-mouse IFNγ (antibody)

RRID:AB_1107694

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FITC anti-mouse IFN-gamma (antibody)

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APC anti-mouse IFN-gamma (antibody)

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FITC anti-human/mouse Granzyme B (antibody)

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Caspase-3, Active Form (antibody)

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PE/Cyanine7 anti-mouse CD49a (antibody)

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FITC anti-mouse/human CD44 (antibody)

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FITC anti-mouse/human CD11b (antibody)

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PE anti-mouse/human CD11b (antibody)

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anti-mouse CD8α (antibody)

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PE anti-mouse CD8a (antibody)

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CD8 (antibody)

RRID:AB_2738474

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APC anti-mouse CD8a (antibody)

RRID:AB_312751

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anti-mouse CD4 (antibody)

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PE anti-mouse CD4 (antibody)

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FITC anti-mouse CD4 (antibody)

RRID:AB_312691

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CD4 (antibody)

RRID:AB_2738426

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APC anti-mouse CD4 (antibody)

RRID:AB_312719

This monoclonal targets CD4

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