FIG. 2.

In situ hybridization using a human CRP riboprobe labeled with [³⁵S]UTP and hybridized with human liver and nasal polyp tissue. Controls used the antisense (A, positive control) or sense (B, negative control) riboprobe with sections of human liver. Antisense riboprobe with a section of a human nasal polyp shows hybridization of the probe to the epithelial surface (C). No hybridization is seen in the control using the sense riboprobe (D). (E) Hematoxylin-and-eosin staining of a section of the same polyp showing the epithelial cell surface. Magnification, ×100.