TLR2-Dependent Signaling for IL-15 Production Is Essential for the Homeostasis of Intestinal Intraepithelial Lymphocytes

Figure 1

Changes in the number of intraepithelial lymphocytes (IELs) in TLR2^−/− mice. (a and b) The numbers of IELs in the small intestine (a) and colon (b) of TLR2^−/− mice and individual control mice. Horizontal bars indicate the mean. Ten mice per group from three independent experiments. (c) The IEL was detected through immunohistochemistry with CD3. Images are 400x. ; .

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