IRTA family mRNAs have gene-specific localization patterns within normal tonsil tissue.

In situ hybridization of hyperplastic human tonsil to IRTA antisense RNA probes, as indicated. For each panel 3 serial sections are shown; the third frame represents an overlay of the antisense RNA signal (with blue changed to black) and the serial section stained with hematoxylin and eosin (H&E). For each set a section was processed in parallel with a sense RNA probe to control for background signal. GC indicates germinal center; MargZ, marginal zone. Original magnification A, × 20; B, × 50; C, × 15.