THY1 and neoplasm: Secondly, CD90 (Thy1) is expressed on other immune cells, including T cells, fibroblasts, basophils, as well as dendritic and endothelial cells [42,43], and thus the anti-Thy1 antibody might have inhibited pro-tumor cells, resulting in decelerated tumorigenesis and limited tumor expansion and a non-significant difference in ILCs in the DMBA and DMBA+Ab groups.