On 2014 Oct 15, Amanda Capes-Davis commented:

Please be careful to view the erratum here if working with hTERT-EEC cells. As shown by Korch et al 2012 (PMID 22710073), hTERT-EEC is known to be misidentified and is actually MCF-7. So cells are from breast carcinoma, not immortalized endometrium.

Authentic stocks are always a possibility, so labs are encouraged to test their stocks using a consensus technique such as STR profiling. For a list of known misidentified cell lines, see http://iclac.org/databases/cross-contaminations/.

On 2014 Oct 15, Amanda Capes-Davis commented:

Please be careful to view the erratum here if working with hTERT-EEC cells. As shown by Korch et al 2012 (PMID 22710073), hTERT-EEC is known to be misidentified and is actually MCF-7. So cells are from breast carcinoma, not immortalized endometrium.

Authentic stocks are always a possibility, so labs are encouraged to test their stocks using a consensus technique such as STR profiling. For a list of known misidentified cell lines, see http://iclac.org/databases/cross-contaminations/.