Journal Article

Liver biopsy derived induced pluripotent stem cells provide unlimited supply for the generation of hepatocyte-like cells

Campana, Benedetta, Hay, David C., Carbone, Walter, Calabrese, Diego, Mele, Valentina, Roma, Guglielmo, Szkolnicka, Dagmara, Wieland, Stefan, Fofana, Isabel, Bergling, Sebastian, Tchorz, Jan, Heim, Markus H., Bouwmeester, Tewis, Nuciforo, Sandro

2019

Overview

Hepatocyte-like cells (HLCs) differentiated from induced pluripotent stem cells (iPSCs) have emerged as a promising cell culture model to study metabolism, biotransformation, viral infections and inherited liver diseases. iPSCs provide an unlimited supply for the generation of HLCs, but incomplete HLC differentiation remains a major challenge. iPSC may carry-on a tissue of origin dependent expression memory influencing iPSC differentiation into different cell types. Whether liver derived iPSCs (Li-iPSCs) would allow the generation of more fully differentiated HLCs is not known. In the current study, we used primary liver cells (PLCs) expanded from liver needle biopsies and reprogrammed them into Li-iPSCs using a non-integrative Sendai virus-based system. Li-iPSCs were differentiated into HLCs using established differentiation protocols. The HLC phenotype was characterized at the protein, functional and transcriptional level. RNA sequencing data were generated from the originating liver biopsies, the Li-iPSCs, fibroblast derived iPSCs, and differentiated HLCs, and used to characterize and compare their transcriptome profiles. Li-iPSCs indeed retain a liver specific transcriptional footprint. Li-iPSCs can be propagated to provide an unlimited supply of cells for differentiation into Li-HLCs. Similar to HLCs derived from fibroblasts, Li-HLCs could not be fully differentiated into hepatocytes. Relative to the originating liver, Li-HLCs showed lower expression of liver specific transcription factors and increased expression of genes involved in the differentiation of other tissues. PLCs and Li-iPSCs obtained from small pieces of human needle liver biopsies constitute a novel unlimited source for the production of HLCs. Despite the preservation of a liver specific gene expression footprint in Li-iPSCs, the generation of fully differentiated hepatocytes cannot be achieved with the current differentiation protocols.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Animals / Biology and Life Sciences / Biomarkers - metabolism / Biomedical research / Biopsy / Biotransformation / Cell culture / Cell differentiation / Cell Differentiation - genetics / Cell Proliferation / Cells, Cultured / Cellular Reprogramming / Cluster Analysis / Differentiation / DNA binding proteins / EDTA / Fibroblasts / Fibroblasts - cytology / Footprints / Gastroenterology / Gene expression / Gene Expression Regulation / Gene sequencing / Genes / Hepatocytes / Hepatocytes - cytology / Hepatocytes - metabolism / Hepatology / Hospitals / Humans / Induced Pluripotent Stem Cells - cytology / Induced Pluripotent Stem Cells - metabolism / Infection / Liver / Liver - pathology / Liver biopsy / Liver diseases / Medical research / Medicine and Health Sciences / Metabolism / Mice, SCID / Novels / Patients / Phenotypes / Pluripotency / Preservation / Principal Component Analysis / Ribonucleic acid / RNA / RNA sequencing / Stem cells / Transcription (Genetics) / Transcription factors / Transcription Factors - metabolism / Transcription, Genetic / Virus diseases / Viruses