CD90 has been reported to participate in T-cell activation [30], neuritis outgrowth modulation [31], vesicular release of neurotransmitter at the synapse [32], astrocyte adhesion [33], apoptosis in carcinoma cells [34], tumour suppression [35–37], wound healing [38], fibrosis [39, 40], and fibrogenesis [41]. The gene discussed is THY1; the disease is neoplasm.