Chang Liver (HeLa) Cells

The Chang Liver cell line, originally believed to be derived from normal human liver tissue, has undergone significant reclassification following advanced genetic profiling. STR PCR DNA profiling techniques have demonstrated that the Chang Liver cell line is indistinguishable from the HeLa cell line, suggesting that it is not derived from hepatocyte cells as previously thought, but rather should be considered a HeLa derivative. This revelation has important implications for researchers using this cell line, emphasizing the need for careful interpretation of experimental results derived from its use.

HeLa cells, originally taken from Henrietta Lacks, a Black woman, in the early 1950s, are known for their robust growth and genetic stability in vitro, characteristics likely shared by the Chang Liver cell line given its genetic similarity. This background necessitates that studies employing the Chang Liver cell line in research related to liver function or diseases may need to be re-evaluated or confirmed with additional hepatocyte-specific models. The misidentification also highlights broader issues in cell culture practices, including cross-contamination and mislabeling, underscoring the importance of regular authentication of cell lines used in research settings.