Hepatocytes are regarded as the only effective cell source for cell transplantation to treat liver diseases; however, their availability is limited due to a donor shortage. Thus, a novel cell source must be developed. We recently reported that mature rodent hepatocytes can be reprogrammed into progenitor-like cells with a repopulative capacity using small molecule inhibitors. Here, we demonstrate that hepatic progenitor cells can be obtained from human infant hepatocytes using the same strategy. These cells, named human chemically induced liver progenitors (hCLiPs), had a significant repopulative capacity in injured mouse livers following transplantation. hCLiPs redifferentiated into mature hepatocytes in vitro upon treatment with hepatic maturation-inducing factors. These redifferentiated cells exhibited cytochrome P450 (CYP) enzymatic activities in response to CYP-inducing molecules and these activities were comparable with those in primary human hepatocytes. These findings will facilitate liver cell transplantation therapy and drug discovery studies.
Microarray transcriptome data are available with accession numbers GSE133776 (Reprogramming of primary human hepatocytes (PHHs) into hCLiPs); GSE133777 (Hepatic induction of hCLiPs); GSE133778(Characterization of long term-cultured of hCLiPs); GSE133779 (Transcriptomic analysis of PHHs isolated from hCLiP-transplanted mouse chimeric liver). GSE133776-GSE133779 are included in Superseries GSE133797. Comparative analysis of IPHH and APHH transcriptome is available with an accession number GSE134672.
Reprogramming of primary human hepatocytes (PHHs) into hCLiPsNCBI Gene Expression Omnibus, GSE133776.
Hepatic induction of hCLiPsNCBI Gene Expression Omnibus, GSE133777.
Characterization of long term-cultured of hCLiPsNCBI Gene Expression Omnibus, GSE133778.
Transcriptomic analysis of PHHs isolated from hCLiP-transplanted mouse chimeric liverNCBI Gene Expression Omnibus, GSE133779.
Comparison between infant and adult primary human hepatocytes (PHHs) in terms of their responsiveness to FAC (FBS + A83-01 + CHIR99021)NCBI Gene Expression Omnibus, GSE134672.
- Takahiro Ochiya
- Takahiro Ochiya
- Takeshi Katsuda
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Animal experimentation: Animal experiments in this study were performed in compliance with the guidelines of the Institute for Laboratory Animal Research, National Cancer Center Research Institute. The protocol was approved by the Committee on the Ethics of Animal Experiments of National Cancer Center Research Institute (Permit Number: T14-015-E). All surgery was performed under isoflurane anesthesia, and every effort was made to minimize suffering.
- Hao Zhu, University of Texas Southwestern Medical Center, United States
© 2019, Katsuda et al.
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