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      1. Author :
        Kadurugamuwa, J. L.; Modi, K.; Coquoz, O.; Rice, B.; Smith, S.; Contag, P. R.; Purchio, T.
      2. Title :
      3. Type :
        Journal Article
      4. Year :
      5. Publication :
        Infection and Immunity
      6. Products :
      7. Volume :
      8. Issue :
      9. Page Numbers :
      10. Research Area :
      11. Keywords :
        IVIS, Xenogen, Xen10
      12. Abstract :
        We developed a method for simultaneous in vivo biophotonic monitoring of pneumococcal meningitis and the accompanying neuronal injury in live transgenic mice. Streptococcus pneumoniae engineered for bioluminescence (lux) was used for direct visualization of disease progression and antibiotic treatment in a mouse model of meningitis. The host response was monitored in transgenic mice containing an inducible firefly luciferase (luc) reporter gene under transcriptional control of the mouse glial fibrillary acidic protein (GFAP) promoter. Based on the different spectra of light emission and substrate requirements for lux and luc, we were able to separately monitor the two reporters using a highly sensitive in vivo imaging system. The level of neuronal damage and recovery following antibiotic treatment was dependent on the time of treatment. This model has potential for simultaneous multiparameter monitoring and testing of therapies that target the pathogen or host response to prevent neuronal injury and recovery.
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