Figure 3.
Intrahepatic distribution of iNOS mRNA after adoptive transfer of CTLs. Livers from two wild-type animals (A, B and C, D) that were injected 2 d earlier with CTLs were analyzed for the expression of iNOS mRNA by in situ hybridization using a specific 33P-labeled iNOS riboprobe. Note that most iNOS RNA is contained in lymphomononuclear inflammatory cells (arrowheads), whereas no iNOS RNA is detectable in the hepatocytes (hematoxylin and eosin; original magnification: ×600). d. 2, day 2.