“…Furthermore, since cultivated liver cells are a basic tool for testing the effects of new medicinal drugs, hepatocyte-like cells can become an important alternative to animal testing (Ghallab et al, 2013[ 5 ], 2014[ 4 ][ 6 ]). Currently such alternative in vitro systems play a major role in testing of neurotoxicity (Waldmann et al, 2014[ 20 ]; Zimmer et al, 2014[ 23 ]; Krug et al, 2013[ 17 ]), nephrotoxicity (Faiz et al, 2015[ 3 ]; Yang et al, 2014[ 21 ]) and hepatotoxicity (Heise et al, 2012[ 13 ]; Godoy et al, 2009[ 9 ]; Godoy 2011[ 7 ]; Godoy and Bolt, 2012[ 8 ]; Grinberg et al, 2014[ 12 ]; Hengstler et al, 2000[ 15 ]). The results are also important, because medicinal and toxic substances are currently being tested with hepatocyte-like cells, and now it becomes possible to determine how trustworthy the results can be.…”