γIFN-treated or TCM-treated HUVE cells induce KS-like lesions in nude mice. Lesion formation is associated with expression of bFGF. (A) Shows examples of the histopathology (H & E staining, original magnification × 400) and (B) shows bFGF expression by immunohistochemistry in the same tissues from mice inoculated with untreated HUVE cells (HUVE), TCM-treated HUVE cells (TCM-HUVE), or γIFN-treated HUVE cells (γIFN-HUVE), respectively.