Figure 2.
Pathologic injuries caused by Th1 and Th17 cells. Lethally irradiated BALB/c mice were transplanted with B6 TCD-BM alone or together with Th1 or Th17 cells (1 × 106 each) generated from B6 CD4 T cells. Recipient mice were euthanized and organs were harvested 2–3 weeks after BMT. Formalin-fixed tissues were embedded in paraffin, sectioned, and stained with H&E. (A) Representative micrographs are from liver (upper), intestine (middle), and lung (lower) of BM alone, Th1, or Th17 groups (original magnification ×200). (B) Histopathology was assessed by an expert pathologist in a blind fashion. The data are pooled from 2 replicate experiments with 5 to 7 recipients per group.