Dr. Pingnan Sun’s research focuses on generating robust human stem-cell-derived hepatocytes, which can be applied to make liver organoids as well as model liver diseases. He previously studied HBV pathology in hepatic and non-hepatic cells (Human Reproduction, 2009; Arch Pharm Res, 2012; Cell Tissue Res, 2013). He investigated virus-host interaction in hepatic and non-hepatic cells and set up a new HBV/HCV cell model via stem cell technology. In 2013, with the support of the NSFC and MRC, he cooperated with Dr. David Hay, Dr. Arvind Patel, and Dr. Xiaoling Zhou, successfully modeling HCV infection using stem cell-derived hepatocytes. Currently, he cooperates with Dr. Inhyun Park at the Yale Stem Cell Center to model fatty liver disease using stem-cell-derived hepatocytes.