Hide caption Show caption Researchers from the Department of Pathology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong (HKUMed) have identified a new metabolic mechanism in liver cancer cells, by which macropinocytosis, an endocytic process, is used to engulf extracellular proteins as fuels to support the unlimited growth of hepatocellular carcinoma (HCC) in hypoxia (oxygen deprivation).