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Gene expression profiles in human liver organoid-derived hepatocytes

ABSTRACT: Gene expression profiles in human liver organoid-derived hepatocytes

PROVIDER: PRJNA981479 | ENA |

REPOSITORIES: ENA

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Gene expression profiles in human liver organoid-derived hepatocytes

Project description:Human liver organoids are expected to be a hepatocyte source for preclinical in vitro studies. Although these organoids show long-term proliferation, their hepatic functions remain low. Here, we propose a novel method for two dimensional (2D)-cultured hepatic differentiation from human liver organoids. When cultured under a 2D condition, the single cells from human liver organoids were seeded on collagen type I-coated plates. Then, optimal conditions for hepatic differentiation were screened using several reagents. We determined the 2D-cultured hepatocyte differentiation method from human liver organoids. Hepatic gene expressions in human liver organoids-derived hepatocytes (Org-HEPs) were greatly increased, compared to those in human liver organoids. The metabolic activities of cytochrome P450 (CYP) 1A2, CYP2C8, CYP2E1 and CYP3A4 were at levels comparable to those in primary human hepatocytes (PHHs). These results suggested that human liver organoids could be differentiated into highly functional hepatocytes in 2D culture. We also treated Org-HEPs and PHHs with hepatotoxic drugs. The cell viability of Org-HEPs was almost the same as that of PHHs, suggesting that Org-HEPs could be used for hepatotoxicity tests. Thus, Org-HEPs will be useful for pharmaceutical research.

2024-08-29 | GSE234459 | GEO

Fully human umbilical cord-derived organoid for acute liver failure

Project description:We report a fully human UC-derived organoid system that integrates ECM hydrogel, MSCs and reprogrammed hepatocytes, achieving the treatment of acute hepatic failure in case of extreme failure.To explore the mechanism of our organoid in hepatic failure, we performed single cell RNA sequencing of transplanted organoids as well as the original organoid prior to transplantation, we have demonstrated that MSCs were primarily responsible for inhibiting the secretion of inflammatory-inducing cytokines and promoting the secretion of inflammation-inhibiting cytokines by recruiting immune cells migrating into organoid to triggering immune response.

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Organoids derived from directly reprogrammed human hepatocytes for modeling liver cancer initiation

Project description:Hepatocellular carcinoma (HCC) and cholangiocarcinoma (ICC) are two main forms liver cancers with poor prognosis. Models for studying HCC and ICC development using human liver cells are urgently needed. Organoids serve as in vitro models for cancer studies as it recapitulates in vivo structures and microenvironment of solid tumors. Herein, we established liver cancer organoid models by introducing specific mutations into human induced hepatocyte (hiHep)-derived organoids. c-MYC and hRASG12V overexpression in hiHep organoids with repressed p53 activation by large T led to distinct HCC and ICC signatures. With these oncogenic mutations, the neoplastic hiHep organoids formed cancerous structures and possessed cancer-specific hallmarks. Comprehensive transcriptional analysis of liver cancer organoids revealed genes and pathways with disease-stage-specific alterations. Notably, with RAS mutations, hiHep organoids acquired biliary trans-differentiation, and showed a process of conversion from hepatocytes to ICC. To sum up, we have established a useful and convenient in vitro human organoid systems modeling liver cancer development.

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Project description:Robust and scalable differentiation of human pluripotent stem cells into high-quality hepatocyte-like cells (HLC) is achieved by acting on Wnt/b-catenin and TGFb pathways and taking advantage of latest knowledge on human liver development. Obtained HLC are comparable to primary human hepatocytes and superior to stem cell-derived hepatocytes generated with previously described protocols. As a proof of concept, such HLC were used to assess drug hepatotoxicity and study human ductal plate and bile duct morphogenesis in a complex liver organoid model.

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Gene expression profiles in human duodenal organoid-derived monolayer

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Hepatic differentiation of liver organoids

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