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Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell+Stem+Cell 2014 ; 15 (3): 340-9 Nephropedia Template TP
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Adult Hepatocytes Are Generated by Self-Duplication Rather than Stem Cell Differentiation #MMPMID25130492
Cell Stem Cell 2014[Sep]; 15 (3): 340-9 PMID25130492show ga
The liver is thought to utilize facultative stem cells, also known as ?oval cells? or ?atypical ductal cells? (ADCs), for regeneration following various types of injury. However, this notion has been based largely on in vitro studies and transplantation models; where lineage tracing has been used, results have been conflicting and effect sizes have been small. Here, we used genetic and nucleoside analog-based tools to mark and track the origin and contribution of various cell populations to liver regeneration in vivo following several ADC-inducing insults. We report that, contrary to prevailing stem-cell-based models of regeneration, virtually all new hepatocytes come from preexisting hepatocytes.