Western blot results showed that TTK protein levels recapitulated mRNA expression patterns in 34 pairs of HBV-HCC tumor and adjacent noncancerous liver tissues8: protein levels of TTK were significantly increased in liver cancer tissues, when compared to noncancerous liver tissues (P = 9.8 × 10−12) (Fig. 1A,B and Fig. S1). Here, TTK is linked to liver cancer.