The Hep3B cell line, derived from an 8-year-old child with liver cancer, is a pivotal model in the study of human liver cancer cells and their responses to various therapeutic agents. Hep3B cells contain an integrated hepatitis B virus genome and is integral in the investigation of differential drug responses due to its unique genetic and phenotypic characteristics.The Hep 3B human hepatoma cell line is renowned for its extensive expression of liver-specific proteins such as alpha-fetoprotein (AFP), albumin, and various other markers, making it an invaluable tool in drug metabolism and hepatotoxicity studies. This wide array of expressed proteins allows for a comprehensive assessment of how liver cancer cells interact with and metabolize therapeutic agents.