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Chijimatsu R, Takeda T, Tsuji S, Sasaki K, Kato K, Kojima R, Michihata N, Tsubaki T, Matui A, Watanabe M, Tanaka S, Saito T. Development of hydroxyapatite-coated nonwovens for efficient isolation of somatic stem cells from adipose tissues. Regen Ther 2022; 21:52-61. [PMID: 35765544 PMCID: PMC9192701 DOI: 10.1016/j.reth.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/15/2022] [Accepted: 05/25/2022] [Indexed: 11/26/2022] Open
Abstract
Adipose-derived stem cells (ASCs) are an attractive cell source for cell therapy. Despite the increasing number of clinical applications, the methodology for ASC isolation is not optimized for every individual. In this study, we developed an effective material to stabilize explant cultures from small-fragment adipose tissues. Methods Polypropylene/polyethylene nonwoven sheets were coated with hydroxyapatite (HA) particles. Adipose fragments were then placed on these sheets, and their ability to trap tissue was monitored during explant culture. The yield and properties of the cells were compared to those of cells isolated by conventional collagenase digestion. Results Hydroxyapatite-coated nonwovens immediately trapped adipose fragments when placed on the sheets. The adhesion was stable even in culture media, leading to cell migration and proliferation from the tissue along with the nonwoven fibers. A higher fiber density further enhanced cell growth. Although cells on nonwoven explants could not be fully collected with cell dissociation enzymes, the cell yield was significantly higher than that of conventional monolayer culture without impacting stem cell properties. Conclusions Hydroxyapatite-coated nonwovens are useful for the effective primary explant culture of connective tissues without enzymatic cell dissociation. Hydroxyapatite-coated nonwovens enable explant culture of adipose tissue. ASCs migrated and proliferated from the tissue explants along the fibers in nonwovens. Nonwoven explants had significantly higher cell yield than conventional culture. Nonwoven culture did not impact stem cell properties of ASCs.
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Affiliation(s)
- Ryota Chijimatsu
- The University of Tokyo, Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,The University of Tokyo, Sensory and Motor System Medicine, Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,Okayama University Hospital, Center for Comprehensive Genomic Medicine, 2-5-1, Shikada-chou, Kita-ku, Okayama, 700-8558, Japan
| | - Taiga Takeda
- The University of Tokyo, Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CPC Corporation, 3-18-16 Minami-Aoyama, Minato-ku, Tokyo, 107-0062, Japan
| | - Shinsaku Tsuji
- CPC Corporation, 3-18-16 Minami-Aoyama, Minato-ku, Tokyo, 107-0062, Japan.,Avenue Cell Clinic, 3-18-16 Minami-Aoyama, Minato-ku, Tokyo, 107-0062, Japan
| | - Kohei Sasaki
- Japan Vilene Company, Ltd., Central Research Laboratory, 7 Kita-tone, Koga-shi, Ibaraki, 306-0213, Japan
| | - Koichi Kato
- Japan Vilene Company, Ltd., Central Research Laboratory, 7 Kita-tone, Koga-shi, Ibaraki, 306-0213, Japan
| | - Rie Kojima
- Japan Vilene Company, Ltd., Central Research Laboratory, 7 Kita-tone, Koga-shi, Ibaraki, 306-0213, Japan
| | - Noriko Michihata
- Japan Vilene Company, Ltd., Central Research Laboratory, 7 Kita-tone, Koga-shi, Ibaraki, 306-0213, Japan
| | - Toshiya Tsubaki
- The University of Tokyo, Sensory and Motor System Medicine, Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Aya Matui
- CPC Corporation, 3-18-16 Minami-Aoyama, Minato-ku, Tokyo, 107-0062, Japan
| | - Miharu Watanabe
- CPC Corporation, 3-18-16 Minami-Aoyama, Minato-ku, Tokyo, 107-0062, Japan
| | - Sakae Tanaka
- The University of Tokyo, Sensory and Motor System Medicine, Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Taku Saito
- The University of Tokyo, Sensory and Motor System Medicine, Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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2
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Takeishi K, Collin de l'Hortet A, Wang Y, Handa K, Guzman-Lepe J, Matsubara K, Morita K, Jang S, Haep N, Florentino RM, Yuan F, Fukumitsu K, Tobita K, Sun W, Franks J, Delgado ER, Shapiro EM, Fraunhoffer NA, Duncan AW, Yagi H, Mashimo T, Fox IJ, Soto-Gutierrez A. Assembly and Function of a Bioengineered Human Liver for Transplantation Generated Solely from Induced Pluripotent Stem Cells. Cell Rep 2021; 31:107711. [PMID: 32492423 DOI: 10.1016/j.celrep.2020.107711] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/17/2019] [Accepted: 05/08/2020] [Indexed: 12/22/2022] Open
Abstract
The availability of an autologous transplantable auxiliary liver would dramatically affect the treatment of liver disease. Assembly and function in vivo of a bioengineered human liver derived from induced pluripotent stem cells (iPSCs) has not been previously described. By improving methods for liver decellularization, recellularization, and differentiation of different liver cellular lineages of human iPSCs in an organ-like environment, we generated functional engineered human mini livers and performed transplantation in a rat model. Whereas previous studies recellularized liver scaffolds largely with rodent hepatocytes, we repopulated not only the parenchyma with human iPSC-hepatocytes but also the vascular system with human iPS-endothelial cells, and the bile duct network with human iPSC-biliary epithelial cells. The regenerated human iPSC-derived mini liver containing multiple cell types was tested in vivo and remained functional for 4 days after auxiliary liver transplantation in immunocompromised, engineered (IL2rg-/-) rats.
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Affiliation(s)
- Kazuki Takeishi
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | | | - Yang Wang
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Hepatobiliary Surgery, Peking University People's Hospital, Beijing 100044, China
| | - Kan Handa
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Jorge Guzman-Lepe
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Kentaro Matsubara
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Kazutoyo Morita
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Sae Jang
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Nils Haep
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Rodrigo M Florentino
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil
| | - Fangchao Yuan
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Ken Fukumitsu
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Kimimasa Tobita
- Department of Bioengineering and Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA 15201, USA
| | - Wendell Sun
- LifeCell Corporation, Branchburg, NJ 08876, USA
| | - Jonathan Franks
- Center for Biologic Imaging, University of Pittsburgh Medical School, Pittsburgh, PA 15261, USA
| | - Evan R Delgado
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219-3110, USA; Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Erik M Shapiro
- Department of Radiology, Michigan State University, East Lansing, MI 48824, USA
| | - Nicolas A Fraunhoffer
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; Facultad de Ciencias de la Salud, Carrera de Medicina, Universidad Maimónides, Ciudad Autónoma de Buenos Aires and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Buenos Aires 1001, Argentina
| | - Andrew W Duncan
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219-3110, USA; Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Hiroshi Yagi
- Department of Surgery, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Tomoji Mashimo
- Division of Animal Genetics, Laboratory Animal Research Center, Institute of Medical Science, University of Tokyo, Tokyo 158-8557, Japan
| | - Ira J Fox
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219-3110, USA; Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Surgery, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Alejandro Soto-Gutierrez
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219-3110, USA; Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, PA 15213, USA.
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3
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Zhang S, Zhang B, Chen X, Chen L, Wang Z, Wang Y. Three-dimensional culture in a microgravity bioreactor improves the engraftment efficiency of hepatic tissue constructs in mice. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2699-2709. [PMID: 25056199 DOI: 10.1007/s10856-014-5279-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 07/13/2014] [Indexed: 06/03/2023]
Abstract
Tissue-engineered liver using primary hepatocytes has been considered a valuable new therapeutic modality as an alternative to whole organ liver transplantation for different liver diseases. The development of clinically feasible liver tissue engineering approaches, however, has been hampered by the poor engraftment efficiency of hepatocytes. We developed a three-dimensional (3D) culture system using a microgravity bioreactor (MB), biodegradable scaffolds and growth-factor-reduced Matrigel to construct a tissue-engineered liver for transplantation into the peritoneal cavity of non-obese diabetic severe combined immunodeficient mice. The number of viable cells in the hepatic tissue constructs was stably maintained in the 3D MB culture system. Hematoxylin-eosin staining and zonula occludens-1 expression revealed that neonatal mouse liver cells were reorganized to form tissue-like structures during MB culture. Significantly upregulated hepatic functions (albumin secretion, urea production and cytochrome P450 activity) were observed in the MB culture group. Post-transplantation analysis indicated that the engraftment efficiency of the hepatic tissue constructs prepared in MB cultures was higher than that of those prepared in the static cultures. Higher level of hepatic function in the implants was confirmed by the expression of albumin. These findings suggest that 3D MB culture systems may offer an improved method for creating tissue-engineered liver because of the higher engraftment efficiency and the reduction of the initial cell function loss.
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Affiliation(s)
- Shichang Zhang
- Institute of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China,
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Kubota Y, Noguchi H, Seita M, Yuasa T, Sasamoto H, Nakaji S, Okitsu T, Fujiwara T, Kobayashi N. Maintenance of Viability and Function of Rat Islets With the Use of ROCK Inhibitor Y-27632. CELL MEDICINE 2013; 6:15-23. [PMID: 26858876 DOI: 10.3727/215517913x674199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The number of patients with diabetes is on an increasing trend, thus leading to the belief that diabetes will be the largest medical problem of the 21st century. Islet transplantation can improve glycometabolic control in patients with type 1 diabetes. We studied the viability of Rho-associated protein kinase (ROCK) inhibitor Y-27632 in a culture system in vitro on freshly isolated rat islets. Islet isolation was conducted on a Lewis rat, and studies of culture solutions were split into two groups, one group using ROCK inhibitor Y-27632, and another without. On the seventh day of culture, we evaluated the differences for the cell morphology, viability, and insulin secretion. The Y-27632 group maintained form better than the group without Y-27632. With strong expression of Bcl-2 observed with the Y-27632 group, and expression suppressed with Bax, inhibition of apoptosis by Y-27632 was confirmed. The Y-27632 group predominantly secreted insulin. For islet transplantation, Y-27632 inhibited cell apoptosis in a graft and was also effective in promoting insulin secretion. We were able to confirm effective morphological and functional culture maintenance by separating islets from a rat and adding ROCK inhibitor Y-27632 to the medium.
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Affiliation(s)
- Yasuhiro Kubota
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
| | - Hirofumi Noguchi
- † Department of Surgery, Chiba-East National Hospital, National Hospital Organization , Chiba , Japan
| | - Masayuki Seita
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
| | - Takeshi Yuasa
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
| | - Hiromi Sasamoto
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
| | - Shuhei Nakaji
- ‡ Department of Biomedical Engineering, Okayama University of Science , Okayama , Japan
| | - Teru Okitsu
- § Department of Organ Transplantation Center, Kyoto University , Kyoto , Japan
| | - Toshiyoshi Fujiwara
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
| | - Naoya Kobayashi
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
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5
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Uygun BE, Yarmush ML. Engineered liver for transplantation. Curr Opin Biotechnol 2013; 24:893-9. [PMID: 23791465 PMCID: PMC3783566 DOI: 10.1016/j.copbio.2013.05.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 05/20/2013] [Accepted: 05/28/2013] [Indexed: 12/23/2022]
Abstract
Orthotopic liver transplantation is the only definitive treatment for end stage liver failure and the shortage of donor organs severely limits the number of patients receiving transplants. Liver tissue engineering aims to address the donor liver shortage by creating functional tissue constructs to replace a damaged or failing liver. Despite decades of work, various bottoms-up, synthetic biomaterials approaches have failed to produce a functional construct suitable for transplantation. Recently, a new strategy has emerged using whole organ scaffolds as a vehicle for tissue engineering. This technique involves preparation of these organ scaffolds via perfusion decellularization with the resulting scaffold retaining the circulatory network of the native organ. This important phenomenon allows for the construct to be repopulated with cells and to be connected to the blood torrent upon transplantation. This opinion paper presents the current advances and discusses the challenges of creating fully functional transplantable liver grafts with this whole liver engineering approach.
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Affiliation(s)
- Basak E Uygun
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospitals for Children in Boston, 51 Blossom Street, Boston, MA 02114 USA, Phone: 1-617-371-4879, Fax: 617-573-9471
| | - Martin L Yarmush
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospitals for Children in Boston and the Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, Phone: 1-617-371-4882, Fax: 617-573-9471
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6
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Abstract
Initially hailed as the ultimate solution to organ failure, engineering of vascularized tissues such as the liver has stalled because of the need for a well-structured circulatory system that can maintain the cells seeded inside the construct. A new approach has evolved to overcome this obstacle. Whole-organ decellularization is a method that retains most of the native vascular structures of the organ, providing microcirculatory support and structure, which can be anastomosed with the recipient circulation. The technique was first applied to the heart and then adapted for the liver. Several studies have shown that cells can be eliminated, the extracellular matrix and vasculature are reasonably preserved and, after repopulation with hepatocytes, these grafts can perform hepatic functions in vitro and in vivo. Progress is rapidly being made as researchers are addressing several key challenges to whole-organ tissue engineering, such as ensuring correct cell distribution, nonparenchymal cell seeding, blood compatibility, immunological concerns, and the source of cells and matrices.
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7
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Li YS, Harn HJ, Hsieh DK, Wen TC, Subeq YM, Sun LY, Lin SZ, Chiou TW. Cells and materials for liver tissue engineering. Cell Transplant 2012; 22:685-700. [PMID: 23127824 DOI: 10.3727/096368912x655163] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Liver transplantation is currently the most efficacious treatment for end-stage liver diseases. However, one main problem with liver transplantation is the limited number of donor organs that are available. Therefore, liver tissue engineering based on cell transplantation that combines materials to mimic the liver is under investigation with the goal of restoring normal liver functions. Tissue engineering aims to mimic the interactions among cells with a scaffold. Particular materials or a matrix serve as a scaffold and provide a three-dimensional environment for cell proliferation and interaction. Moreover, the scaffold plays a role in regulating cell maturation and function via these interactions. In cultures of hepatic lineage cells, regulation of cell proliferation and specific function using biocompatible synthetic, biodegradable bioderived matrices, protein-coated materials, surface-modified nanofibers, and decellularized biomatrix has been demonstrated. Furthermore, beneficial effects of addition of growth factor cocktails to a flow bioreactor or coculture system on cell viability and function have been observed. In addition, a system for growing stem cells, liver progenitor cells, and primary hepatocytes for transplantation into animal models was developed, which produces hepatic lineage cells that are functional and that show long-term proliferation following transplantation. The major limitation of cells proliferated with matrix-based transplantation systems is the high initial cell loss and dysfunction, which may be due to the absence of blood flow and the changes in nutrients. Thus, the development of vascular-like scaffold structures, the formation of functional bile ducts, and the maintenance of complex metabolic functions remain as major problems in hepatic tissue engineering and will need to be addressed to enable further advances toward clinical applications.
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Affiliation(s)
- Yuan-Sheng Li
- Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan, ROC
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Soto-Gutierrez A, Zhang L, Medberry C, Fukumitsu K, Faulk D, Jiang H, Reing J, Gramignoli R, Komori J, Ross M, Nagaya M, Lagasse E, Stolz D, Strom SC, Fox IJ, Badylak SF. A whole-organ regenerative medicine approach for liver replacement. Tissue Eng Part C Methods 2011; 17:677-86. [PMID: 21375407 DOI: 10.1089/ten.tec.2010.0698] [Citation(s) in RCA: 215] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND & AIMS The therapy of choice for end-stage liver disease is whole-organ liver transplantation, but this option is limited by a shortage of donor organs. Cell-based therapies and hepatic tissue engineering have been considered as alternatives to liver transplantation, but neither has proven effective to date. A regenerative medicine approach for liver replacement has recently been described that includes the use of a three-dimensional organ scaffold prepared by decellularization of xenogeneic liver. The present study investigates a new, minimally disruptive method for whole-organ liver decellularization and three different cell reseeding strategies to engineer functional liver tissue. METHODS A combination of enzymatic, detergent, and mechanical methods are used to remove all cells from isolated rat livers. Whole-organ perfusion is used in a customized organ chamber and the decellularized livers are examined by morphologic, biochemical, and immunolabeling techniques for preservation of the native matrix architecture and composition. Three different methods for hepatocyte seeding of the resultant three-dimensional liver scaffolds are evaluated to maximize cell survival and function: (1) direct parenchymal injection, (2) multistep infusion, or (3) continuous perfusion. RESULTS The decellularization process preserves the three-dimensional macrostructure, the ultrastructure, the composition of the extracellular matrix components, the native microvascular network of the liver, and the bile drainage system, and up to 50% of growth factor content. The three-dimensional liver matrix reseeded with the multistep infusion of hepatocytes generated ∼90% of cell engraftment and supported liver-specific functional capacities of the engrafted cells, including albumin production, urea metabolism, and cytochrome P450 induction. CONCLUSIONS Whole-organ liver decellularization is possible with maintenance of structure and composition suitable to support functional hepatocytes.
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Affiliation(s)
- Alejandro Soto-Gutierrez
- Transplantation Section, Department of Surgery, Children's Hospital of Pittsburgh, Center for Innovative Regenerative Therapies, University of Pittsburgh, Pennsylvania, USA.
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Abstract
Accurate prediction of human drug toxicity is a vital part of the drug discovery process. However, the safety evaluation process is hindered by the availability and quality of primary human liver models with which to study drug toxicity. In an attempt to overcome this limitation, research has focused on deriving human hepatocytes from a number of sources, including progenitors from fetal and adult liver, human cell lines derived from liver tumours, immortalized human hepatocytes and pluripotent stem cells. The major hurdles in developing scalable and high-fidelity human hepatocytes from hepatic cell lines and fetal and adult progenitors have been limited organ availability, homogeneous cell purification, short-term cell culture, and the rapid loss of hepatocyte phenotype and function in culture. Therefore it has been necessary to find alternative sources of human hepatocytes which circumvent these issues. The research in our group has focused on generating human hepatic endoderm from the scalable pluripotent stem cell populations, human embryonic stem cells and induced pluripotent stem cells. We have developed efficient and scalable models of human hepatocyte differentiation from these cell populations. Moreover, stem-cell-derived hepatic endoderm displays many of the functional attributes of primary human hepatocytes. Our research is now focused on developing defined culture systems and improving cell culture microenvironments in order to improve our understanding of the mechanisms regulating human liver development. This will in turn facilitate the generation of broad-range functioning hepatic endoderm in vitro. By taking these approaches, we believe that it will be possible to improve the predictive nature of our in vitro models, revolutionizing the manner in which industry measures human drug toxicity and having an impact on drug attrition.
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Soto-Gutierrez A, Navarro-Alvarez N, Yagi H, Nahmias Y, Yarmush ML, Kobayashi N. Engineering of an hepatic organoid to develop liver assist devices. Cell Transplant 2010; 19:815-22. [PMID: 20573303 DOI: 10.3727/096368910x508933] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Cell-based technologies to support/restore liver function represent one of the most promising opportunities in the treatment of acute liver failure. However, the understanding of the constituent cell types that interact to achieve liver-specific structure and function has not been achieved in the development of liver assist devices (LADs). Here we show that hepatocytes migrated toward and adhered and formed sinusoids-like structures in conjunction with liver nonparenchymal cells, and that this liver organoid formed sophisticated tissue after 7 days in an implanted LAD in rodents. Hepatocytes only or in combination with human nonparenchymal liver cell lines (endothelial, cholangiocytes, and stellate cells) were cultured in Matrigel. Ultrastructural analysis showed that the hepatocyte-decorated endothelial vascular structures resemble in vivo sinusoids containing plate-like structures, bile canaliculi, and lumen. The sinusoid-like structures retained albumin secretion and drug metabolism capabilities. In addition, LADs containing cocultures of human liver nonparenchymal cells were transplanted in animals for a week; the liver tissue formed sophisticated structures resembling the liver. These results demonstrate the importance of nonparenchymal cells in the cellular composition of LADs. The novelty of the culture's sinusoid-like organization and function strongly support the integration of liver nonparenchymal units into hepatocyte coculture-based LADs as a potential destination therapy for liver failure.
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Affiliation(s)
- Alejandro Soto-Gutierrez
- Department of Surgery, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan.
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11
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Soto-Gutierrez A, Yagi H, Uygun BE, Navarro-Alvarez N, Uygun K, Kobayashi N, Yang YG, Yarmush ML. Cell delivery: from cell transplantation to organ engineering. Cell Transplant 2010; 19:655-65. [PMID: 20525441 DOI: 10.3727/096368910x508753] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cell populations derived from adult tissue and stem cells possess a great expectation for the treatment of several diseases. Great efforts have been made to generate cells with therapeutic impact from stem cells. However, it is clear that the development of systems to deliver such cells to induce efficient engraftment, growth, and function is a real necessity. Biologic and artificial scaffolds have received significant attention for their potential therapeutic application when use to form tissues in vitro and facilitate engraftment in vivo. Ultimately more sophisticated methods for decellularization of organs have been successfully used in tissue engineering and regenerative medicine applications. These decellularized tissues and organs appear to provide bioactive molecules and bioinductive properties to induce homing, differentiation, and proliferation of cells. The combination of decellularized organs and stem cells may dramatically improve the survival, engraftment, and fate control of transplanted stem cells and their ultimate clinical utility, opening the doors to a new era of organ engineering.
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Affiliation(s)
- Alejandro Soto-Gutierrez
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and the Shriners Hospitals for Children, Center for Engineering in Medicine, Boston, MA 76104, USA.
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12
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Will nano-fibers permit to turn liver cell transplantation into a curative tool against liver failure? J Hepatol 2010; 52:150-2. [PMID: 20006401 DOI: 10.1016/j.jhep.2009.10.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 10/21/2009] [Accepted: 10/22/2009] [Indexed: 12/04/2022]
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Dalgetty DM, Medine CN, Iredale JP, Hay DC. Progress and future challenges in stem cell-derived liver technologies. Am J Physiol Gastrointest Liver Physiol 2009; 297:G241-8. [PMID: 19520740 DOI: 10.1152/ajpgi.00138.2009] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The emergence of regenerative medicine has led to significant advances in the identification and understanding of human stem cells and adult progenitor cells. Both cell populations exhibit plasticity and theoretically offer a potential source of somatic cells in large numbers. Such a resource has an important role to play in the understanding of human development, in modeling human disease and drug toxicity, and in the generation of somatic cells in large numbers for cell-based therapies. Presently, liver transplantation is the only effective treatment for end-stage liver disease. Although this procedure can be carried out with high levels of success, the routine transplant of livers is severely limited by organ donor availability. As a result, attention has focused on the ability to restore liver mass and function by alternative approaches ranging from the bioartificial device to transplantation of human hepatocytes. In this review we will focus on the generation of human hepatic endoderm from different stem/progenitor cell populations with a view to its utility in regenerative medicine.
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Affiliation(s)
- Donna M Dalgetty
- Medical Research Council Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, Scotland, UK
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14
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Life support of artificial liver: development of a bioartificial liver to treat liver failure. ACTA ACUST UNITED AC 2008; 16:113-7. [PMID: 19110648 DOI: 10.1007/s00534-008-0022-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2008] [Accepted: 07/15/2008] [Indexed: 12/20/2022]
Abstract
In recent years there has been a particular focus on research regarding tissue engineering targeting the liver, especially in terms of what types of cells and extracellular matrices should be organized and in what type of environments to create an artificial liver, i.e., a life-saving organ. The ideal is to use healthy human liver cells as a source of cells for such research, but there is an extreme shortage of human-donor livers that can be used for cell isolation. Therefore, we are presently working on the differentiation of embryonic stem cells into liver cells as well as reversibly immortalized human liver cell lines that can be cultured in large quantities and at low cost. We are also working on the development of a bioartificial liver (BAL) using such cells as a source. Herein, we introduce our findings on the current status of BAL development.
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Myronovych A, Murata S, Chiba M, Matsuo R, Ikeda O, Watanabe M, Hisakura K, Nakano Y, Kohno K, Kawasaki T, Hashimoto I, Shibasaki Y, Yasue H, Ohkohchi N. Role of platelets on liver regeneration after 90% hepatectomy in mice. J Hepatol 2008; 49:363-72. [PMID: 18602717 DOI: 10.1016/j.jhep.2008.04.019] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Revised: 04/17/2008] [Accepted: 04/17/2008] [Indexed: 02/07/2023]
Abstract
BACKGROUND/AIMS Mortality after 90% partial hepatectomy in mice was associated with severe acute liver failure. Recently, we revealed that platelets have a strong promotional effect on hepatic regeneration. In the present study, we investigated the effect of thrombocytosis on liver regeneration after 90% hepatectomy in mice. METHODS For thrombocytosis induction PEG-rHuMGDF was injected 5 days before operation. Hepatectomy, sparing only the caudate lobe, was performed in normal and thrombocytotic BALB/c mice. Survival rate, platelet number, liver weight/body weight ratio, proliferating cell nuclear antigen, serum parameters, signal transduction and overexpressed genes were examined. RESULTS Platelet number was significantly higher in thrombocytotic group. All mice in normal group died within 30 h after hepatectomy. Survival rate in thrombocytotic group was 6/11 at 30 h and 3/11 one week after hepatectomy. Activation of Akt and STAT3 signaling pathways in thrombocytotic group was observed earlier and recognized to be stronger compared to normal group. Cell cycle, signaling pathways, metabolism and transport genes were significantly overexpressed in thrombocytotic group up to 24h after hepatectomy. CONCLUSIONS Under the thrombocytotic condition, liver regeneration occurred even in 90% hepatectomized mice. Platelets contribute to cell cycle progression and metabolic pathways in addition to preventing acute liver failure.
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Affiliation(s)
- Andriy Myronovych
- Department of Surgery, Advanced Biomedical Applications, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Abstract
Recent advances in human embryonic stem cell (hESC) biology now offer an alternative cell source for tissue engineers, as these cells are capable of proliferating indefinitely and differentiating to many clinically relevant cell types. Novel culture methods capable of exerting spatial and temporal control over the stem cell microenvironment allow for more efficient expansion of hESCs, and significant advances have been made toward improving our understanding of the biophysical and biochemical cues that direct stem cell fate choices. Effective production of lineage specific progenitors or terminally differentiated cells enables researchers to incorporate hESC derivatives into engineered tissue constructs. Here, we describe current efforts using hESCs as a cell source for tissue engineering applications, highlighting potential advantages of hESCs over current practices as well as challenges which must be overcome.
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Affiliation(s)
- CM Metallo
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA
- *Correspondence to: Sean P. PALECEK, 1415 Engineering Drive, Madison, WI 53706, USA. Tel.: +608-262-8931 Fax: +608-262-5434 E-mail:
| | - SM Azarin
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA
- WiCell Research Institute, Madison, WI, USA
| | - L Ji
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA
- WiCell Research Institute, Madison, WI, USA
| | - JJ De Pablo
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - SP Palecek
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA
- WiCell Research Institute, Madison, WI, USA
- *Correspondence to: Sean P. PALECEK, 1415 Engineering Drive, Madison, WI 53706, USA. Tel.: +608-262-8931 Fax: +608-262-5434 E-mail:
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