Paneth cells are molecular factories for gut defense
and cellular communication. An example of a defensive product of Paneth cells
is lysozyme which destroys the cell walls of bacteria. Wnt3 is a signaling molecule
which maintains the pluripotency of the neighboring intestinal stem cell. The
key histological features of Paneth cells are the presence of abundant
cytoplasmic eosinophilic granules and its location in the intestinal crypt
adjacent to the stem cells. 

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