TNFSF10 and neoplasm: As shown in Fig. 6a, hematoxylin and eosin (H & E) staining revealed large areas of proliferating tumour cells in PBS-treated tissues, whereas markedly reduced numbers of tumour cells and moderate necrosis were observed in H5CmTERT-Ad- and H5CmTERT-Ad/TRAIL-treated tumour tissues.