The average tumor volume of PBS group reached 1,097.19 ± 327.51 mm3, whereas that of Tα1, Tα1-Fc, and Tax is 687.61 ± 199.08, 602.84 ± 138.99, and 560.74 ± 112.49 mm3, respectively (Fig. 5B). This evidence concerns the gene TAAR1 and neoplasm.