ArticleStem cell research & therapy2024
Transcriptomic and proteomic sequencing unveils the role of vitamin D and metabolic flux shifts in the induction of human hepatic organoids.
Article in Stem cell research & therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Tfcp2l1 participates in paternal vitamin D deficiency-induced fetal lung maldevelopment in mice.Genes & nutrition · 2026Article
- Temporal proteomic profiling of iPSC-derived human liver organoids reveals optimal maturation for drug metabolism and toxicology.Scientific reports · 2026Article
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7 authors.
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Abstract
backgroundHepatic organoids (HOs), validated through comparative sequencing with human liver tissues, are reliable models for liver research. Comprehensive transcriptomic and proteomic sequencing of HOs throughout their induction period will enhance the platform's utility, aiding in the elucidation of liver development's molecular mechanisms.
methodsWe developed hepatic organoids (HOs) from embryonic stem cells (ESCs) through a de novo induction protocol, mimicking the stages of fetal liver development: ESCs to definitive endoderm (DE), then to foregut (FG), hepatoblasts (HB), and finally to HOs stage 1 (HO1), culminating in self-organizing HOs stage 2 (HO2) via dissociation and re-inoculation. The successful establishment of HOs was validated by immunofluorescence staining and RT-qPCR for specific markers. Comprehensive transcriptomic and proteomic sequencing and analysis were conducted on FG, HB, HO1, and HO2.
resultsOur data suggest that several transcription factors (TFs) activated during the HB stage share overlapping target genes with the vitamin D receptor (VDR). Calcitriol, a direct activator of VDR, notably facilitated the FG to HB stage transition by activating VDR and enhancing key TFs, thereby promoting hepatic progenitor cell maturation. Furthermore, our findings revealed a significant transition towards glycolytic energy metabolism at the HO2 stage, characterized by increased glycolytic flux and reduced oxidative phosphorylation. Inhibition of glycolysis using 2-deoxy-D-glucose (2-DG) led to suppressed growth and differentiation at the HO2 stage. Analysis of signaling pathways indicated upregulation of the HIF-1 pathway, which is associated with glycolysis activation, as well as the MAPK and PI3K-AKT pathways, which regulate HIF-1α protein translation.
conclusionsWe elucidated a pivotal role for calcitriol in facilitating the transition from FG to HB by activating VDR and augmenting the expression of critical transcription factors (TFs). Besides, our research underscores a shift in metabolic pathways toward glycolytic energy metabolism in HO2 organoids. Overall, our multiomics approach reveals the intricate molecular regulation during the development of HOs.
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