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Adisasmita M, Lee HK, An Y, Kim M, Mamo MG, Hur JK, Choi D, Shin JH, Jung YK. Epigenetic modulation inhibits epithelial-mesenchymal transition-driven fibrogenesis and enhances characteristics of chemically-derived hepatic progenitors. Ann Surg Treat Res 2024; 106:274-283. [PMID: 38725803 PMCID: PMC11076951 DOI: 10.4174/astr.2024.106.5.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/02/2024] [Accepted: 03/05/2024] [Indexed: 05/12/2024] Open
Abstract
Purpose One of the novel cell sources of cell-based liver regenerative medicine is human chemically-derived hepatic progenitors (hCdHs). We previously established this cell by direct hepatocyte reprogramming with a combination of small molecules (hepatocyte growth factor, A83-01, CHIR99021). However, there have been several issues concerning the cell's stability and maintenance, namely the occurrences of epithelial-mesenchymal transition (EMT) that develop fibrotic phenotypes, resulting in the loss of hepatic progenitor characteristics. These hepatic progenitor attributes are thought to be regulated by SOX9, a transcription factor essential for hepatic progenitor cells and cholangiocytes. Methods To suppress the fibrotic phenotype and improve our long-term hCdHs culture technology, we utilized the epigenetic modulating drugs DNA methyltransferase inhibitor (5-azacytidine) and histone deacetylase inhibitor (sodium butyrate) that have been reported to suppress and revert hepatic fibrosis. To confirm the essential role of SOX9 to our cell, we used clustered regularly interspaced short palindromic repeats-interference (CRISPRi) to repress the SOX9 expression. Results The treatment of only 5-azacytidine significantly reduces the fibrosis/mesenchymal marker and EMT-related transcription factor expression level in the early passages. Interestingly, this treatment also increased the hepatic progenitor markers expression, even during the reprogramming phase. Then, we confirmed the essential role of SOX9 by repressing the SOX9 expression with CRISPRi which resulted in the downregulation of several essential hepatic progenitor cell markers. Conclusion These results highlight the capacity of 5-azacytidine to inhibit EMT-driven hepatic fibrosis and the significance of SOX9 on hepatic progenitor cell stemness properties.
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Affiliation(s)
- Michael Adisasmita
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Hyomin K Lee
- Major in Medical Genetics, Department of Medicine, Graduate School, Hanyang University, Seoul, Korea
- Department of Genetics, Hanyang University College of Medicine, Seoul, Korea
| | - Yohan An
- Department of Genetics, Hanyang University College of Medicine, Seoul, Korea
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Myounghoi Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Michael Girma Mamo
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Junho K. Hur
- Department of Genetics, Hanyang University College of Medicine, Seoul, Korea
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Dongho Choi
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Ji Hyun Shin
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Yun Kyung Jung
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
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Salas-Silva S, Kim Y, Kim TH, Kim M, Seo D, Choi J, Factor VM, Seo HR, Song Y, Choi GS, Jung YK, Kim K, Lee KG, Jeong J, Shin JH, Choi D. Human chemically-derived hepatic progenitors (hCdHs) as a source of liver organoid generation: Application in regenerative medicine, disease modeling, and toxicology testing. Biomaterials 2023; 303:122360. [PMID: 38465578 DOI: 10.1016/j.biomaterials.2023.122360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/24/2023] [Accepted: 10/19/2023] [Indexed: 03/12/2024]
Abstract
BACKGROUND & AIMS Several types of human stem cells from embryonic (ESCs) and induced pluripotent (iPSCs) to adult tissue-specific stem cells are commonly used to generate 3D liver organoids for modeling tissue physiology and disease. We have recently established a protocol for direct conversion of primary human hepatocytes (hPHs) from healthy donor livers into bipotent progenitor cells (hCdHs). Here we extended this culture system to generate hCdH-derived liver organoids for diverse biomedical applications. METHODS To obtain hCdHs, hPHs were cultured in reprogramming medium containing A83-01 and CHIR99021 for 7 days. Liver organoids were established from hCdHs (hCdHOs) and human liver cells (hLOs) using the same donor livers for direct comparison, as well as from hiPSCs. Organoid properties were analyzed by standard in vitro assays. Molecular changes were determined by RT-qPCR and RNA-seq. Clinical relevance was evaluated by transplantation into FRG mice, modeling of alcohol-related liver disease (ARLD), and in vitro drug-toxicity tests. RESULTS hCdHs were clonally expanded as organoid cultures with low variability between starting hCdH lines. Similar to the hLOs, hCdHOs stably maintained stem cell phenotype based on accepted criteria. However, hCdHOs had an advantage over hLOs in terms of EpCAM expression, efficiency of organoid generation and capacity for directed hepatic differentiation as judged by molecular profiling, albumin secretion, glycogen accumulation, and CYP450 activities. Accordingly, FRG mice transplanted with hCdHOs survived longer than mice injected with hLOs. When exposed to ethanol, hCdHOs developed stronger ARLD phenotype than hLOs as evidenced by transcriptional profiling, lipid accumulation and mitochondrial dysfunction. In drug-induced injury assays in vitro, hCdHOs showed a similar or higher sensitivity response than hPHs. CONCLUSION hCdHOs provide a novel patient-specific stem cell-based platform for regenerative medicine, toxicology testing and modeling liver diseases.
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Affiliation(s)
- Soraya Salas-Silva
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Yohan Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea; Max Planck Institute of Molecular Cell Biology and Genetics, 01307, Dresden, Germany; Department of MetaBioHealth, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Tae Hun Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea
| | - Myounghoi Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea
| | - Daekwan Seo
- Office of Cellular, Tissue and Gene Therapies, Center for Biologics Evaluation and Researcj, U.S. Food and Drug Administration, Silver Spring, MD, 20993, USA
| | - Jeonghoon Choi
- Office of Cellular, Tissue and Gene Therapies, Center for Biologics Evaluation and Researcj, U.S. Food and Drug Administration, Silver Spring, MD, 20993, USA
| | - Valentina M Factor
- Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Haeng Ran Seo
- Advanced Biomedical Research Laboratory, Institute Pasteur Korea, 16, Daewangpangyo-ro 712-beon gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea
| | - Yeonhwa Song
- Advanced Biomedical Research Laboratory, Institute Pasteur Korea, 16, Daewangpangyo-ro 712-beon gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea
| | - Gyu Sung Choi
- Department of General Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yun Kyung Jung
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Kungsik Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Kyeong Geun Lee
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Jaemin Jeong
- Laboratory of Radiation Exposure and Therapeutics, National Radiation Emergency Medical Center, KIRAMS, Republic of Korea
| | - Ji Hyun Shin
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Dongho Choi
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea; Department of HY-KIST Bio-convergence, Hanyang University, Seoul, 04763, Republic of Korea.
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Cai YL, Nan F, Tang GT, Ma Y, Ren Y, Xiong XZ, Zhou RX, Li FY, Cheng NS, Jiang X. Fabrication of 3D printed PCL/PEG artificial bile ducts as supportive scaffolds to promote regeneration of extrahepatic bile ducts in a canine biliary defect model. J Mater Chem B 2023; 11:9443-9458. [PMID: 37727116 DOI: 10.1039/d3tb01250f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
In this study, a 3D porous poly(ε-caprolactone)/polyethylene glycol (PCL/PEG) composite artificial tubular bile duct was fabricated for extrahepatic bile duct regeneration. PCL/PEG composite scaffolds were fabricated by 3D printing, and the molecular structure, mechanical properties, thermal properties, morphology, and in vitro biocompatibility were characterized for further application as artificial bile ducts. A bile duct defect model was established in beagle dogs for in vivo implantation. The results demonstrated that the implanted PE1 ABD, serving as a supportive scaffold, effectively stimulated the regeneration of a new bile duct comprising CK19-positive and CK7-positive epithelial cells within 30 days. Remarkably, after 8 months, the newly formed bile duct exhibited an epithelial layer resembling the normal structure. Furthermore, the study revealed collagen deposition, biliary muscular formation, and the involvement of microvessels and fibroblasts in the regenerative process. In contrast, the anastomotic area without ABD implantation displayed only partial restoration of the epithelial layer, accompanied by fibroblast proliferation and subsequent bile duct fibrosis. These findings underscore the limited inherent repair capacity of the bile duct and underscore the beneficial role of the PE1 ABD artificial tubular bile duct in promoting biliary regeneration.
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Affiliation(s)
- Yu-Long Cai
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Research Center for Biliary Diseases, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Fang Nan
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Guo-Tao Tang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yuan Ma
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yi Ren
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xian-Ze Xiong
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Research Center for Biliary Diseases, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Rong-Xing Zhou
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Research Center for Biliary Diseases, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Fu-Yu Li
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Research Center for Biliary Diseases, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Nan-Sheng Cheng
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Research Center for Biliary Diseases, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xia Jiang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
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Li Q, Wang P, Liu C, Liu F, Zhao H, Guo Y, Zhao G. Preparation and mechanical behavior of the acellular porcine common bile duct and its immunogenicity in vivo. J Mech Behav Biomed Mater 2022; 136:105494. [PMID: 36209588 DOI: 10.1016/j.jmbbm.2022.105494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 11/30/2022]
Abstract
The current clinical treatments for complications caused by hepatobiliary surgery still have some inevitable weaknesses. This study aimed to prepare the acellular porcine common bile duct (APCBD) for repairing biliary defects and damage. The porcine common bile duct was decellularized by the freeze-thaw method combined with nuclease treatment, and the efficacy of acellularization was confirmed by the DNA quantification and histological structure. The results showed that the residual DNA content was reduced from 854.67 ± 9.71 ng/mg to 5.43 ± 0.85 ng/mg, and the natural structure and shape of the bile duct were well preserved. The biomechanical properties such as the tensile strength, elastic modulus, and elongation-at-break of the APCBD in the transverse and longitudinal direction indicated that the APCBD meets the requirements of the biomechanical strength in replacement. In addition, the results of the immunotoxicity test showed there was no significant difference in the body weights, organ coefficient, hematology, and immune histology between the experimental groups (three subgroups) and the negative control group, which demonstrated the prepared APCBD had no obvious toxicity to the immune system in vivo and might be a suitable biomaterial for the bile duct repairing.
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Affiliation(s)
- Qing Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China
| | - Peng Wang
- Qingdao Chunghao Tissue Engineering Co., Ltd., Qingdao, Shandong, China
| | - Chongzhong Liu
- Department of Hepatobiliary Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Fengyue Liu
- Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Haibin Zhao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China.
| | - Yu Guo
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China
| | - Guoqun Zhao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China
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