To provide in vivo evidence for the oncogenic role of SNHG6 in OCCC, we established cell lines with stable SNHG6 knockdown for use in a xenograft mouse model; the knockdown efficiency is shown in Figure 4A. Ten mice were injected subcutaneously with TOV21G‐NC and TOV21G‐shRNA cells, and all developed detectable tumours (Figure 4B). The gene discussed is SNHG6; the disease is neoplasm.