Fig. 4.

TEM study showing H. pylori strain CAG7:8 within GEPs. (A) Extracellular CAG7:8 in the vicinity of an oligopotential precursor to the pit cell lineage. (B) A spiral-shaped bacterium (closed arrowhead) near a late endosome (open arrowhead) in a preneck cell progenitor. (C) Cross-sectional view of CAG7:8 in the cytoplasm of a preneck cell progenitor surrounded by a clear halo (arrow). (D) Two intracellular H. pylori (arrows) enclosed within a late endosome of a preneck cell. [Bars, 800 nm (A) and 500 nm (B–D).]