Blood-brain barrier invasion by group B Streptococcus depends upon proper
cell-surface anchoring of lipoteichoic acid
J. Clin. Invest. Kelly S. Doran, et al. 115:2499 doi:10.1172/JCI23829 [
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Figure 1The newly identified Δ
iagA gene contributes to host cell invasion. (
A) Schematic representation of the GBS
iagA region and the position of the Tn917 or pVE6007 insertion in original mutants, indicated by small arrows. (
B and
C) Interaction of WT and Δ
iagA with hBMECs. (
B) Invasion and total cell-associated (TCA; surface-adherent plus intracellular) bacteria. (
C) Intracellular survival over time. (
D) Invasion of cell lines hBMEC, A549 (lung epithelial cells), and JEG-3 (chorion epithelial cells) by WT and Δ
iagA strains. *
P < 0.005.