Abstract
Abstract Francisella tularensis is a pathogenic species and a causative agent of tularemia. This bacterium is incredibly infectious and often lethal in that F. tularensis induces the overproduction of pro-inflammatory cytokines. This study aims to identify the innate immune receptors responsible for the production of inflammatory cytokines in response to F. tularensis infection. The study uses an immortalized C57BL/6 Bone Marrow Macrophage (BMMac) cell line as the control and knockout BMMac deficient in various innate immune receptors. The cells are passaged and seeded before infecting them with F. tularensis for 2 hours. The cells were treated with a high dose of gentamicin for 2 hours, followed by a low dose of gentamicin for an incubation period of 24 hours. The supernatant from these cells is then collected and analysis processed by ELISA, an enzyme-linked immunosorbent assay, to measure the production of inflammatory cytokines. The results were compared with the positive control of wild-type BMMac and the negative control of uninfected BMMac cells. Analysis of these mutants reveals the involvement of innate immune receptors in triggering the pro-inflammatory cytokine storm in response to F. tularensis infection that leads to the host’s death. Supported by NIH (SC1 GM122699-01A1)
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