Furthermore, through a comparative analysis of the green fluorescence signal in the dorsal thigh skin of the transplanted mitf−/−/prkdc−/−/il2rg−/− recipient with that of the mitf−/− frog, we discovered that mitf−/−/prkdc−/−/il2rg−/−Xenopus tropicalis was suitable for intravital imaging of dynamic changes in tumor cells using green fluorescence signals post-transplantation (Fig. 9b). This evidence concerns the gene IL2RG and neoplasm.