Antigen uptake in the gut

Antigens may be taken up from the gut lumen by 3 different cell types.
(A) Soluble antigen can cross the epithelium via transcellular (endocytosis) or paracellular routes.
(B) Dendritic cells can extend dendrites into the lumen and sample antigen.
(C) M cells in Peyer's patches take up particulate antigens.