[2] A project is currently underway to enumerate and rename contaminated cell lines to avoid errors in research caused by misattribution.
Thus, all research on endothelium- or megakaryocyte-specific functions utilizing these cell lines has been misguided.
Lengthy research is required to determine the precise points where cell lines became contaminated.
[b] The widespread contamination of HeLa cells was initially recognized by Walter Nelson-Rees using simple Giemsa stain karyotyping under a light microscope.
It is considered good practice to periodically check cell lines maintained under laboratory conditions (i.e., not placed in long-term storage) for contamination with HeLa or other common contaminants to ensure that their quality and integrity are maintained.