Despite the dual properties of UC-MSC in carcinogenicity and ability to inhibit tumor growth, CBS has been considered to have more potential in therapeutics than adult plasma since it contains higher levels of anti-inflammatory molecules [34], higher levels of soluble molecules responsible for NK, NKT, and T cells impairment [e.g. NK group 2, member D (NKG2D) and sNKG2DL] and responsible for directly downmodulated NK cell cytotoxicity in a dose-dependent manner [35]. This evidence concerns the gene CBS and neoplasm.