The B-D13 antibody has also been used to evaluate constitutive IL13Rα2 expression on a variety of cell types, including a new model cell line for oral cavity squamous cell carincoma [20], tumor initiating cells in adult human gliomas [20], [21], and IL13Rα2 expression in human pediatric brain tumors [7]. This evidence concerns the gene IL13RA2 and neoplasm.