KIFC1 and neoplasm: However, IF staining with KIFC1 and γ-tubulin antibodies (Fig. 1F and S1A) further proved that the relative fluorescence intensity of KIFC1 along with γ-tubulin was significantly higher in the tumor tissues (samples 1–5) than that in the normal tissues (samples 6–10), indicating an increased number of centrosomes.