Figure 2

Topographic AFM images of a Caco-2 cell (A) and a M cell (B). The well-differentiated brush border of epithelial Caco-2 cells (A) depicts a densely packed array of upright orientated microvilli (marked by arrowheads) covering the entire surface. In contrast, the M cell surface (B) is supported by sparse truncated microvilli (marked by arrowheads) which appear shorter than those found in Caco-2 cells (scale bar = 5 µm).

© De Gruyter