To examine the function of CFH in tumour cells, stable CFH knockdown (CFH‐KD1 and CFH‐KD2) and non‐target control cells (CTL‐KD) were established in non‐metastatic Huh7 and metastatic MHCC97L cells, both of which had relatively high levels of CFH (Figure 3a). The gene discussed is CFH; the disease is neoplasm.