MKI67 and hepatocellular carcinoma: Research employing matrix stiffness levels of 1, 6, and 12 kPa to simulate normal, fibrotic, and cirrhotic hepatocellular carcinoma (HCC) tissue, respectively, demonstrated a 2.7‐fold and 12.2‐fold increase in Ki‐67 staining in Huh7 and HepG2 cells, respectively, when cultured on a 12 kPa substrate compared to a 1 kPa substrate.