Fig. 8

SLEV is pathogenic to murine neurons and glial cells in vitro. Mouse brain cell cultures were prepared and infected with SLEV at a MOI of 0.1, or incubated with medium (Mock). Samples were collected and/or cell cultures were assessed at 24–120 h p.i. a SLEV load in the supernatant of N1E-115 murine neuroblast cell cultures, measured by plaque assay. b Percentage of dead neurons in a primary murine neuron culture infected with SLEV, measured by the percentage of positive cells for calcein and Ethidium homodimer-1 (EthD-1) staining. c SLEV load in the supernatant of primary murine mixed glial cell cultures, measured by plaque assay. d–g Primary murine glial cells were assessed for the release of proinflammatory cytokines CCL5 (d), IFNγ (e), IL-6 (f), and CXCL1 (g) into the culture supernatant, by ELISA. Results are expressed as mean plus SEM and are representative of two experiments (N = 4–12). Mock = not infected, incubated with medium. ND not detectable