Invasion of meningioma cells by GBS.

Monolayers were infected for 9 h with an initial MOI of 0.3 (104 cfu bacteria), washed and then treated with gentamicin. *The percentage of invading bacteria (invasion rate) was calculated using the formula: Invasion rate (%) = (internalised bacteria/associated bacteria)×100. The mean and SEM for GBS were calculated from n = 3–6 experiments. E. coli IH3080 was included as a positive control and showed an invasion rate of 1.167% (SEM ± 0.283 from n = 10 experiments). Similar data were obtained using both meningioma cell lines.