例如:"lncRNA", "apoptosis", "WRKY"

Granzyme K-deficient mice show no evidence of impaired antiviral immunity.

Immunol. Cell Biol.2017 Sep;95(8):676-683. Epub 2017 Apr 21
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摘要


The biological role of granzyme K, a serine protease of cytotoxic T lymphocytes (CTL), is controversial. It has been reported to induce perforin-mediated cell death in vitro, but is also reported to be non-cytotoxic and to operate in inflammatory processes. To elucidate the biological role of this protease, we have deleted the granzyme K gene in mice (mutant allele: Gzmktm1.1Pib; MGI:5636646). Gzmk -/- mice are healthy, anatomically normal, fecund and show normal hematopoietic development. Gzmk -/- mice readily recover from lymphocytic choriomeningitis virus and mouse pox Ectromelia virus infection. Ex vivo, virus-specific granzyme K-deficient CTL are indistinguishable from those of wild-type mice in apoptosis induction of target cells. These data suggest that granzyme K does not play an essential role in viral immunity or cytotoxicity. Our granzyme K knockout line completes the collection of mouse models for the human granzymes, and will further our understanding of their biological roles and relationships.

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