Caption
In a Peyer's patch (one of the constituents of the lymphoid tissue associated with the intestine) in a mouse, a dendritic cell expressing lysozyme (also known as LysoDC) sends a dendrite via a transcellular pore in an M cell to sense light inside the intestine, observed using confocal microscopy. Immunofluorescent marking shows the dendritic cells in cyan, the lysozyme in yellow, the M cells in magenta, the T lymphocytes in red, and lastly, the epithelial basement membrane and vessels in green.
