PHB2 and hepatocellular carcinoma: Similarly, the knockdown of PHB2 by siPHB2-#1 or siPHB2-#2 attenuated GALNT14-mediated reduction in anticancer drug sensitivity in HCC cells, whereas it was restored by co-expression of siPHB2-#3 and exo-PHB2 (Fig. S11E, F).