RHD and neoplasm: In order to verify the antitumor effect of EPHB4-CAR-T cells on mouse RMS tumor xenograft models, Rh30 cells expressing firefly luciferase (Rh30-Luc) were grafted into the dorsal areas of 4-week-old female CB17.Cg-PrkdcscidLystbg-J/CrlCrlj mice (severe combined immunodeficiency [SCID] beige mice).