Moreover, the expression of c-Myc also attenuated the PTBP1 knockdown-mediated inhibitory effect of xenograft growth, as measured by tumour volume (Fig. 6c), tumour size (Fig. 6e), tumour weight (Fig. 6f), and fluorescence intensity of xenograft (Fig. 6g). The gene discussed is PTBP1; the disease is neoplasm.