Fig. 4.
KGF receptor is expressed on thymic epithelial cells.
(A) End-point RT-PCR analysis with cDNA isolated from unseparated thymic tissue of a naive mouse, from flow cytometrically purified thymocyte subsets and TECs (MHCII+CD45−), and from the immortal thymic epithelial cell line mTEC2-3. (B) Thymic tissue sections of the 3 transplant groups were analyzed for expression of KGFR using an anti–FGFR2 antibody. Adjacent sections (not shown) were stained for cytokeratins in order to verify the presence of TECs. Original magnification × 200. C indicates cortex; M, medulla.