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Zeshan M, Amjed N, Ashraf H, Farooq A, Akram N, Zia KM. A review on the application of chitosan-based polymers in liver tissue engineering. Int J Biol Macromol 2024; 262:129350. [PMID: 38242400 DOI: 10.1016/j.ijbiomac.2024.129350] [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: 08/28/2023] [Revised: 12/29/2023] [Accepted: 01/07/2024] [Indexed: 01/21/2024]
Abstract
Chitosan-based polymers have enormous structural tendencies to build bioactive materials with novel characteristics, functions, and various applications, mainly in liver tissue engineering (LTE). The specific physicochemical, biological, mechanical, and biodegradation properties give the effective ways to blend these biopolymers with synthetic and natural polymers to fabricate scaffolds matrixes, sponges, and complexes. A variety of natural and synthetic biomaterials, including chitosan (CS), alginate (Alg), collagen (CN), gelatin (GL), hyaluronic acid (HA), hydroxyapatite (HAp), polyethylene glycol (PEG), polycaprolactone (PCL), poly(lactic-co-glycolic) acid (PGLA), polylactic acid (PLA), and silk fibroin gained considerable attention due to their structure-properties relationship. The incorporation of CS within the polymer matrix results in increased mechanical strength and also imparts biological behavior to the designed PU formulations. The significant and growing interest in the LTE sector, this review aims to be a detailed exploration of CS-based polymers biomaterials for LTE. A brief explanation of the sources and extraction, properties, structure, and scope of CS is described in the introduction. After that, a full overview of the liver, its anatomy, issues, hepatocyte transplantation, LTE, and CS LTE applications are discussed.
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Affiliation(s)
- Muhammad Zeshan
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Nyla Amjed
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Humna Ashraf
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Ariba Farooq
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Nadia Akram
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Khalid Mahmood Zia
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan.
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Mir TA, Alzhrani A, Nakamura M, Iwanaga S, Wani SI, Altuhami A, Kazmi S, Arai K, Shamma T, Obeid DA, Assiri AM, Broering DC. Whole Liver Derived Acellular Extracellular Matrix for Bioengineering of Liver Constructs: An Updated Review. Bioengineering (Basel) 2023; 10:1126. [PMID: 37892856 PMCID: PMC10604736 DOI: 10.3390/bioengineering10101126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 10/29/2023] Open
Abstract
Biomaterial templates play a critical role in establishing and bioinstructing three-dimensional cellular growth, proliferation and spatial morphogenetic processes that culminate in the development of physiologically relevant in vitro liver models. Various natural and synthetic polymeric biomaterials are currently available to construct biomimetic cell culture environments to investigate hepatic cell-matrix interactions, drug response assessment, toxicity, and disease mechanisms. One specific class of natural biomaterials consists of the decellularized liver extracellular matrix (dECM) derived from xenogeneic or allogeneic sources, which is rich in bioconstituents essential for the ultrastructural stability, function, repair, and regeneration of tissues/organs. Considering the significance of the key design blueprints of organ-specific acellular substrates for physiologically active graft reconstruction, herein we showcased the latest updates in the field of liver decellularization-recellularization technologies. Overall, this review highlights the potential of acellular matrix as a promising biomaterial in light of recent advances in the preparation of liver-specific whole organ scaffolds. The review concludes with a discussion of the challenges and future prospects of liver-specific decellularized materials in the direction of translational research.
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Affiliation(s)
- Tanveer Ahmed Mir
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
| | - Alaa Alzhrani
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21423, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11211, Saudi Arabia
| | - Makoto Nakamura
- Division of Biomedical System Engineering, Graduate School of Science and Engineering for Education, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan; (M.N.); (S.I.)
| | - Shintaroh Iwanaga
- Division of Biomedical System Engineering, Graduate School of Science and Engineering for Education, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan; (M.N.); (S.I.)
| | - Shadil Ibrahim Wani
- Division of Biomedical System Engineering, Graduate School of Science and Engineering for Education, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan; (M.N.); (S.I.)
| | - Abdullah Altuhami
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
| | - Shadab Kazmi
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
- Department of Child Health, School of Medicine, University of Missouri, Columbia, MO 65212, USA
| | - Kenchi Arai
- Department of Clinical Biomaterial Applied Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Talal Shamma
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
| | - Dalia A. Obeid
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
| | - Abdullah M. Assiri
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
- College of Medicine, Alfaisal University, Riyadh 11211, Saudi Arabia
| | - Dieter C. Broering
- Laboratory of Tissue/Organ Bioengineering & BioMEMS, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia (T.S.)
- College of Medicine, Alfaisal University, Riyadh 11211, Saudi Arabia
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Khati V, Turkki JA, Ramachandraiah H, Pati F, Gaudenzi G, Russom A. Indirect 3D Bioprinting of a Robust Trilobular Hepatic Construct with Decellularized Liver Matrix Hydrogel. Bioengineering (Basel) 2022; 9:603. [PMID: 36354514 PMCID: PMC9687301 DOI: 10.3390/bioengineering9110603] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/10/2022] [Accepted: 10/18/2022] [Indexed: 10/27/2023] Open
Abstract
The liver exhibits complex geometrical morphologies of hepatic cells arranged in a hexagonal lobule with an extracellular matrix (ECM) organized in a specific pattern on a multi-scale level. Previous studies have utilized 3D bioprinting and microfluidic perfusion systems with various biomaterials to develop lobule-like constructs. However, they all lack anatomical relevance with weak control over the size and shape of the fabricated structures. Moreover, most biomaterials lack liver-specific ECM components partially or entirely, which might limit their biomimetic mechanical properties and biological functions. Here, we report 3D bioprinting of a sacrificial PVA framework to impart its trilobular hepatic structure to the decellularized liver extracellular matrix (dLM) hydrogel with polyethylene glycol-based crosslinker and tyrosinase to fabricate a robust multi-scale 3D liver construct. The 3D trilobular construct exhibits higher crosslinking, viscosity (182.7 ± 1.6 Pa·s), and storage modulus (2554 ± 82.1 Pa) than non-crosslinked dLM. The co-culture of HepG2 liver cells and NIH 3T3 fibroblast cells exhibited the influence of fibroblasts on liver-specific activity over time (7 days) to show higher viability (90-91.5%), albumin secretion, and increasing activity of four liver-specific genes as compared to the HepG2 monoculture. This technique offers high lumen patency for the perfusion of media to fabricate a densely populated scaled-up liver model, which can also be extended to other tissue types with different biomaterials and multiple cells to support the creation of a large functional complex tissue.
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Affiliation(s)
- Vamakshi Khati
- Science for Life Laboratory, Division of Nanobiotechnology, Department of Protein Science, KTH Royal Institute of Technology, 17165 Solna, Sweden
| | | | | | - Falguni Pati
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, India
| | - Giulia Gaudenzi
- Science for Life Laboratory, Division of Nanobiotechnology, Department of Protein Science, KTH Royal Institute of Technology, 17165 Solna, Sweden
- Department of Global Public Health, Karolinska Institute, 17165 Solna, Sweden
| | - Aman Russom
- Science for Life Laboratory, Division of Nanobiotechnology, Department of Protein Science, KTH Royal Institute of Technology, 17165 Solna, Sweden
- AIMES—Center for the Advancement of Integrated Medical and Engineering Sciences, Karolinska Institute and KTH Royal Institute of Technology, 11428 Stockholm, Sweden
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Antarianto RD, Mahmood A, Giselvania A, Asri Dewi AAP, Gustinanda J, Pawitan JA. Inventing Engineered Organoids for end-stage liver failure patients. J Mol Histol 2022; 53:611-621. [PMID: 35882727 PMCID: PMC9374785 DOI: 10.1007/s10735-022-10085-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/28/2022] [Indexed: 11/30/2022]
Abstract
End-stage liver disease (ESLD) is a term used clinically in reference to a group of liver diseases with liver transplantation as the choice of treatment. Due to the limitations of liver transplantation, alternative treatments are needed. The use of primary human hepatocytes represents a valid alternative treatment, but the limitations related to hepatocyte quality, viability, function, conservation, and storage need to be overcome. Transplanted hepatocytes have only been followed for 6–9 months. Therefore, long-term causes of failures are not yet established, including rejection, apoptosis, or other causes. Other alternative therapies to replace liver transplantation include plasmapheresis, hemodiafiltration, and artificial livers. Unfortunately, these methods are highly limited due to availability, high cost, anaphylaxis reaction, development-deposition of immune-complexes, and restricted functionality. Liver organoids, which utilize stem cells instead of ‘impractical’ adult hepatocytes, may be a solution for the development of a complex bioartificial liver. Recent studies have explored the benefits of differentiating mature hepatocytes from stem cells inside a bioreactor. When the use of human-induced Hepatocytes (hiHeps) was investigated in mouse and pig models of liver failure, liver failure markers were decreased, hepatocyte function indicated by albumin synthesis improved, and survival time increased. Bioartificial liver treatment may decrease the infiltration of inflammatory cells into liver tissue by down-regulating pro-inflammatory cytokines.
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Affiliation(s)
- Radiana D Antarianto
- Department of Histology Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia.
- Stem cell and tissue engineering research cluster IMERI UI, Jakarta, Indonesia.
| | - Amer Mahmood
- Stem Cell Unit, Department of Anatomy, King Saud University, Riyadh, Saudi Arabia
| | - Angela Giselvania
- Stem Cell Unit, Department of Anatomy, King Saud University, Riyadh, Saudi Arabia
- Department of Radiotherapy RS Cipto Mangunkusumo, Jakarta, Indonesia
| | - Ayu Aa Prima Asri Dewi
- Doctoral Program in Biomedical Science Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
- Department of Histology, Fakultas Kedokteran dan Ilmu Kesehatan Universitas Warmadewa, Bali, Indonesia
| | - Jatmiko Gustinanda
- Master Program in Biomedical Science Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
| | - Jeanne Adiwinata Pawitan
- Department of Histology Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
- Stem cell and tissue engineering research cluster IMERI UI, Jakarta, Indonesia
- Undergraduate Medicine Program Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
- Integrated Service Unit Stem Cells RS Cipto Mangunkusumo, Jakarta, Indonesia
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5
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Yaghoubi A, Azarpira N, Karbalay-Doust S, Daneshi S, Vojdani Z, Talaei-Khozani T. Prednisolone and mesenchymal stem cell preloading protect liver cell migration and mitigate extracellular matrix modification in transplanted decellularized rat liver. Stem Cell Res Ther 2022; 13:36. [PMID: 35090559 PMCID: PMC8800282 DOI: 10.1186/s13287-022-02711-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/10/2022] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Regenerative medicine provides promising approaches for treating chronic liver diseases. Previous studies indicate that decellularized liver architecture is damaged by invading non-hepatic inflammatory cells. This study aimed to use anti-inflammatory and regenerative potency of bone marrow-derived mesenchymal stem cells (BM-MSC) and prednisolone for reducing fibrosis and balancing inflammatory cell migration into the decellularized liver scaffold. MATERIAL AND METHOD The liver was decellularized by perfusing Sodium Lauryl Ether Sulfate (SLES), and nuclei depletion and extracellular matrix (ECM) retention were confirmed by DNA quantification, histochemical, and immunohistochemical assessments. Scaffolds were loaded with BM-MSCs, prednisolone, or a combination of both, implanted at the anatomical place in the rat partial hepatectomized and followed up for 2 and 4 weeks. RESULTS Labeled-MSCs were traced in the transplanted scaffolds; however, they did not migrate into the intact liver. Immunohistochemistry showed that the hepatoblasts, cholangiocytes, stellate, and oval cells invaded into all the scaffolds. Bile ducts were more abundant in the border of the scaffolds and intact liver. Stereological assessments showed a significant reduction in the number of lymphocytes and neutrophils in prednisolone-loaded scaffolds. The regeneration process and angiogenesis were significantly higher in the group treated with cell/prednisolone-loaded bioscaffolds. Collagen fibers were significantly reduced in the scaffolds pre-treated with cell/prednisolone, prednisolone, or BM-MSCs, compared to the control group. CONCLUSION Loading prednisolone into the scaffolds can be a worthy approach to restrict inflammation after transplantation. Although pre-loading of the scaffolds with a combination of cells/prednisolone could not alleviate inflammation, it played an important role in regeneration and angiogenesis.
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Affiliation(s)
- Atefeh Yaghoubi
- Tissue Engineering Lab, Anatomy Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Transplantation Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saied Karbalay-Doust
- Stereology and Morphometry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Anatomy Department, Shiraz medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sajad Daneshi
- Stereology and Morphometry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Vojdani
- Tissue Engineering Lab, Anatomy Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Talaei-Khozani
- Tissue Engineering Lab, Anatomy Department, Shiraz University of Medical Sciences, Shiraz, Iran.
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Ali S, Haque N, Azhar Z, Saeinasab M, Sefat F. Regenerative Medicine of Liver: Promises, Advances and Challenges. Biomimetics (Basel) 2021; 6:biomimetics6040062. [PMID: 34698078 PMCID: PMC8544204 DOI: 10.3390/biomimetics6040062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/06/2021] [Accepted: 10/14/2021] [Indexed: 12/16/2022] Open
Abstract
Liver tissue engineering is a rapidly developing field which combines the novel use of liver cells, appropriate biochemical factors, and engineering principles, in order to replace or regenerate damaged liver tissue or the organ. The aim of this review paper is to critically investigate different possible methods to tackle issues related with liver diseases/disorders mainly using regenerative medicine. In this work the various regenerative treatment options are discussed, for improving the prognosis of chronic liver disorders. By reviewing existing literature, it is apparent that the current popular treatment option is liver transplantation, although the breakthroughs of stem cell-based therapy and bioartificial liver technology make them a promising alternative.
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Affiliation(s)
- Saiful Ali
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford BD7 1DP, UK; (S.A.); (N.H.); (Z.A.)
| | - Nasira Haque
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford BD7 1DP, UK; (S.A.); (N.H.); (Z.A.)
| | - Zohya Azhar
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford BD7 1DP, UK; (S.A.); (N.H.); (Z.A.)
| | - Morvarid Saeinasab
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran;
| | - Farshid Sefat
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford BD7 1DP, UK; (S.A.); (N.H.); (Z.A.)
- Interdisciplinary Research Centre in Polymer Science & Technology (Polymer IRC), University of Bradford, Bradford BD7 1DP, UK
- Correspondence: ; Tel.: +44-(0)-1274-233679 or +44-(0)-781-381-7460
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Gao Y, Callanan A. Influence of surface topography on PCL electrospun scaffolds for liver tissue engineering. J Mater Chem B 2021; 9:8081-8093. [PMID: 34491259 PMCID: PMC8493469 DOI: 10.1039/d1tb00789k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/24/2021] [Indexed: 01/16/2023]
Abstract
Severe liver disease is one of the most common causes of death globally. Currently, whole organ transplantation is the only therapeutic method for end-stage liver disease treatment, however, the need for donor organs far outweighs demand. Recently liver tissue engineering is starting to show promise for alleviating part of this problem. Electrospinning is a well-known method to fabricate a nanofibre scaffold which mimics the natural extracellular matrix that can support cell growth. This study aims to investigate liver cell responses to topographical features on electrospun fibres. Scaffolds with large surface depression (2 μm) (LSD), small surface depression (0.37 μm) (SSD), and no surface depression (NSD) were fabricated by using a solvent-nonsolvent system. A liver cell line (HepG2) was seeded onto the scaffolds for up to 14 days. The SSD group exhibited higher levels of cell viability and DNA content compared to the other groups. Additionally, the scaffolds promoted gene expression of albumin, with all cases having similar levels, while the cell growth rate was altered. Furthermore, the scaffold with depressions showed 0.8 MPa higher ultimate tensile strength compared to the other groups. These results suggest that small depressions might be preferred by HepG2 cells over smooth and large depression fibres and highlight the potential for tailoring liver cell responses.
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Affiliation(s)
- Yunxi Gao
- Institute of Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh, UK.
| | - Anthony Callanan
- Institute of Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh, UK.
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8
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Artificial cells for the treatment of liver diseases. Acta Biomater 2021; 130:98-114. [PMID: 34126265 DOI: 10.1016/j.actbio.2021.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/06/2021] [Accepted: 06/03/2021] [Indexed: 12/13/2022]
Abstract
Liver diseases have become an increasing health burden and account for over 2 million deaths every year globally. Standard therapies including liver transplant and cell therapy offer a promising treatment for liver diseases, but they also suffer limitations such as adverse immune reactions and lack of long-term efficacy. Artificial cells that mimic certain functions of a living cell have emerged as a new strategy to overcome some of the challenges that liver cell therapy faces at present. Artificial cells have demonstrated advantages in long-term storage, targeting capability, and tuneable features. This article provides an overview of the recent progress in developing artificial cells and their potential applications in liver disease treatment. First, the design of artificial cells and their biomimicking functions are summarized. Then, systems that mimic cell surface properties are introduced with two concepts highlighted: cell membrane-coated artificial cells and synthetic lipid-based artificial cells. Next, cell microencapsulation strategy is summarized and discussed. Finally, challenges and future perspectives of artificial cells are outlined. STATEMENT OF SIGNIFICANCE: Liver diseases have become an increasing health burden. Standard therapies including liver transplant and cell therapy offer a promising treatment for liver diseases, but they have limitations such as adverse immune reactions and lack of long-term efficacy. Artificial cells that mimic certain functions of a living cell have emerged as a new strategy to overcome some of the challenges that liver cell therapy faces at present. This article provides an overview of the recent progress in developing artificial cells and their potential applications in liver disease treatment, including the design of artificial cells and their biomimicking functions, two systems that mimic cell surface properties (cell membrane-coated artificial cells and synthetic lipid-based artificial cells), and cell microencapsulation strategy. We also outline the challenges and future perspectives of artificial cells.
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Slivac I, Zdraveva E, Ivančić F, Žunar B, Holjevac Grgurić T, Gaurina Srček V, Svetec IK, Dolenec T, Bajsić EG, Tominac Trcin M, Mijović B. Bioactivity Comparison of Electrospun PCL Mats and Liver Extracellular Matrix as Scaffolds for HepG2 Cells. Polymers (Basel) 2021; 13:polym13020279. [PMID: 33467025 PMCID: PMC7830273 DOI: 10.3390/polym13020279] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/12/2021] [Accepted: 01/12/2021] [Indexed: 12/13/2022] Open
Abstract
Cells grown on bioactive matrices have immensely advanced many aspects of biomedical research related to drug delivery and tissue engineering. Our main objective was to perform simple evaluation of the structural and biotic qualities of cell scaffolds made of affordable biomaterials for liver cell line (HepG2) cultivation in vitro. In this work the electrospun matrix made of synthetic polyester poly(ε-caprolactone) (PCL) was compared with the natural protein-based extracellular matrix isolated from porcine liver (ECM). Mechanical and structural analysis showed that ECM was about 12 times less resistant to tensile stress while it had significantly larger pore size and twice smaller water contact angle than PCL. Bioactivity assessment included comparison of cell growth and transfection efficiency on cell-seeded scaffolds. Despite the differences in composition and structure between the two respective matrices, the rate of cell spreading and the percentage of transfected cells on both scaffolds were fairly comparable. These results suggest that in an attempt to produce simple, cell carrying structures that adequately simulate the natural scaffold, one can rely on PCL electrospun mats.
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Affiliation(s)
- Igor Slivac
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Emilija Zdraveva
- Faculty of Textile Technology, University of Zagreb, Prilaz baruna Filipovića 28a, 1000 Zagreb, Croatia
| | - Fran Ivančić
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Bojan Žunar
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | | | - Višnja Gaurina Srček
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Ivan-Krešimir Svetec
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Tamara Dolenec
- Department of Transfusion and Regenerative Medicine, University Hospital Centre Sestre Milosrdnice, Draškovićeva 19, 10000 Zagreb, Croatia
| | - Emi Govorčin Bajsić
- Faculty of Chemical Engineering and Technology, University of Zagreb, 10000 Zagreb, Croatia
| | | | - Budimir Mijović
- Faculty of Textile Technology, University of Zagreb, Prilaz baruna Filipovića 28a, 1000 Zagreb, Croatia
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10
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Aydin A, Cebi G, Demirtas ZE, Erkus H, Kucukay A, Ok M, Sakalli L, Alpdagtas S, Gunduz O, Ustundag CB. Combating COVID-19 with tissue engineering: a review. EMERGENT MATERIALS 2021; 4:329-349. [PMID: 33235976 PMCID: PMC7677604 DOI: 10.1007/s42247-020-00138-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/02/2020] [Indexed: 05/04/2023]
Abstract
The ongoing COVID-19 pandemic triggered by SARS-CoV-2 emerged from Wuhan, China, firstly in December 2019, as well spread to almost all around the world rapidly. The main reason why this disease spreads so many people in a short time is that the virus could be transmitted from an infected person to another by infected droplets. The new emergence of diseases usually may affect multiple organs; moreover, this disease is such an example. Numerous reported studies focus on acute or chronic organ damage caused by the virus. At this point, tissue engineering (TE) strategies can be used to treat the damages with its interdisciplinary approaches. Tissue engineers could design drug delivery systems, scaffolds, and especially biomaterials for the damaged tissue and organs. In this review, brief information about SARS-CoV-2, COVID-19, and epidemiology of the disease will be given at first. After that, the symptoms, the tissue damages in specific organs, and cytokine effect caused by COVID-19 will be described in detail. Finally, it will be attempted to summarize and suggest the appropriate treatments with suitable biomaterials for the damages via TE approaches. The aim of this review is to serve as a summary of currently available tissue damage treatments after COVID-19.
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Affiliation(s)
- Ayca Aydin
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Gizem Cebi
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Zeynep Ezgi Demirtas
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Huseyin Erkus
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Aleyna Kucukay
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Merve Ok
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Latife Sakalli
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Saadet Alpdagtas
- Department of Biology, Van Yuzuncu Yil University, 65080 Van, Turkey
| | - Oguzhan Gunduz
- Center for Nanotechnology and Biomaterials Application and Research (NBUAM), Marmara University, 34722 Istanbul, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, 34722 Istanbul, Turkey
| | - Cem Bulent Ustundag
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
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11
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da Silva Morais A, Vieira S, Zhao X, Mao Z, Gao C, Oliveira JM, Reis RL. Advanced Biomaterials and Processing Methods for Liver Regeneration: State-of-the-Art and Future Trends. Adv Healthc Mater 2020; 9:e1901435. [PMID: 31977159 DOI: 10.1002/adhm.201901435] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/13/2019] [Indexed: 12/17/2022]
Abstract
Liver diseases contribute markedly to the global burden of mortality and disease. The limited organ disposal for orthotopic liver transplantation results in a continuing need for alternative strategies. Over the past years, important progress has been made in the field of tissue engineering (TE). Many of the early trials to improve the development of an engineered tissue construct are based on seeding cells onto biomaterial scaffolds. Nowadays, several TE approaches have been developed and are applied to one vital organ: the liver. Essential elements must be considered in liver TE-cells and culturing systems, bioactive agents or growth factors (GF), and biomaterials and processing methods. The potential of hepatocytes, mesenchymal stem cells, and others as cell sources is demonstrated. They need engineered biomaterial-based scaffolds with perfect biocompatibility and bioactivity to support cell proliferation and hepatic differentiation as well as allowing extracellular matrix deposition and vascularization. Moreover, they require a microenvironment provided using conventional or advanced processing technologies in order to supply oxygen, nutrients, and GF. Herein the biomaterials and the conventional and advanced processing technologies, including cell-sheets process, 3D bioprinting, and microfluidic systems, as well as the future trends in these major fields are discussed.
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Affiliation(s)
- Alain da Silva Morais
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
| | - Sílvia Vieira
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
| | - Xinlian Zhao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Joaquim M. Oliveira
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision MedicineUniversity of Minho 4805‐017 Barco Guimarães Portugal
| | - Rui L. Reis
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision MedicineUniversity of Minho 4805‐017 Barco Guimarães Portugal
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Li Z, Wang X, Chen J, Zang Z, Zhou F, Shi L, Li L, Chen C, Wang X, Jin Y, Fu Q. Efficacy Analysis of Gastric Coronary Venous TH Glue Embolization with Splenectomy for Treating Cirrhotic Portal Hypertension. EXPLORATORY RESEARCH AND HYPOTHESIS IN MEDICINE 2019; 000:1-7. [DOI: 10.14218/erhm.2019.00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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13
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Immunomodulatory Functions of Mesenchymal Stem Cells in Tissue Engineering. Stem Cells Int 2019; 2019:9671206. [PMID: 30766609 PMCID: PMC6350611 DOI: 10.1155/2019/9671206] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 10/26/2018] [Accepted: 11/29/2018] [Indexed: 02/06/2023] Open
Abstract
The inflammatory response to chronic injury affects tissue regeneration and has become an important factor influencing the prognosis of patients. In previous stem cell treatments, it was revealed that stem cells not only have the ability for direct differentiation or regeneration in chronic tissue damage but also have a regulatory effect on the immune microenvironment. Stem cells can regulate the immune microenvironment during tissue repair and provide a good "soil" for tissue regeneration. In the current study, the regulation of immune cells by mesenchymal stem cells (MSCs) in the local tissue microenvironment and the tissue damage repair mechanisms are revealed. The application of the concepts of "seed" and "soil" has opened up new research avenues for regenerative medicine. Tissue engineering (TE) technology has been used in multiple tissues and organs using its biomimetic and cellular cell abilities, and scaffolds are now seen as an important part of building seed cell microenvironments. The effect of tissue engineering techniques on stem cell immune regulation is related to the shape and structure of the scaffold, the preinflammatory microenvironment constructed by the implanted scaffold, and the material selection of the scaffold. In the application of scaffold, stem cell technology has important applications in cartilage, bone, heart, and liver and other research fields. In this review, we separately explore the mechanism of MSCs in different tissue and organs through immunoregulation for tissue regeneration and MSC combined with 3D scaffolds to promote MSC immunoregulation to repair damaged tissues.
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Verma SK, Modi A, Singh AK, Teotia R, Kadam S, Bellare J. Functionally coated polyethersulfone hollow fiber membranes: A substrate for enhanced HepG2/C3A functions. Colloids Surf B Biointerfaces 2018; 164:358-369. [DOI: 10.1016/j.colsurfb.2018.01.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 12/11/2017] [Accepted: 01/20/2018] [Indexed: 01/04/2023]
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Fan J, Yang J. Preparation and characterization of a chitosan/galactosylated hyaluronic acid/heparin scaffold for hepatic tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:569-581. [PMID: 28125949 DOI: 10.1080/09205063.2017.1288076] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Cell culture microenvironment and hepatocyte-specific three-dimensional tissue-engineering scaffold play important roles for bioartificial liver devices. In the present study, highly porous sponge scaffolds composed of chitosan (CS) and galactosylated hyaluronic acid (GHA, galactose moieties were covalently coupled with hyaluronic acid through ethylenediamine), were prepared by freezing-drying technique. Because the growth factors specifically bind to heparin with a high affinity and biological stability of the growth factors are modulated by heparin. Heparin was added into CS/GHA scaffold under mild conditions. The effects of heparin on the morphology, structure, porosity, mechanical properties of the CS/GHA/heparin scaffold were studied. CS/GHA scaffold containing heparin maintains the porous structure and good mechanical properties. Furthermore, addition of heparin with the growth factors into the scaffold resulted in a significantly improved the microenvironment of cell growth and prolonged liver functions of the hepatocytes such as albumin secretion, urea synthesis and ammonia elimination. These results indicate that this CS/GHA/heparin scaffold is a potential candidate for liver tissue engineering.
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Affiliation(s)
- Jinyong Fan
- a Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, College of Chemistry and Chemical Engineering , Dezhou University , Dezhou , People's Republic of China
| | - Jun Yang
- b The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences , Nankai University , Tianjin , People's Republic of China
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16
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Shiota G, Itaba N. Progress in stem cell-based therapy for liver disease. Hepatol Res 2017; 47:127-141. [PMID: 27188253 DOI: 10.1111/hepr.12747] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 05/03/2016] [Accepted: 05/12/2016] [Indexed: 12/16/2022]
Abstract
Liver transplantation has been accepted as a useful therapeutic approach for patients with end-stage liver disease. However, the mismatch between the great demand for liver transplants and the number of available donor organs underscores the urgent need for alternative therapeutic strategies for patients with acute and chronic liver failure. The rapidly growing knowledge on stem cell biology has opened new avenues toward stem cell-based therapy for liver disease. As stem cells have capacity for high proliferation and multipotent differentiation, the characteristics of stem cells fit the cell therapy. Several types of cells have been investigated as possible sources of liver regeneration: mesenchymal stem cells, hematopoietic stem cells, liver progenitor cells, induced pluripotent stem cells, and bone marrow mononuclear cells. In vitro and in vivo experiments revealed that these cells have great potential as candidates of stem cell therapy. We reviewed the reports on clinical trials of cell therapy for liver disease that have been recently undertaken using mesenchymal stem cells, hematopoietic stem cells, bone marrow mononuclear cells, and liver progenitor cells. These reports have heterogeneity of description of trial design, types of infused cells, patient population, and efficacy of therapies. We addressed these reports from these viewpoints and clarified their significance. We hope that this review article will provide a perspective on the available approaches based on stem cell-based therapy for liver disease.
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Affiliation(s)
- Goshi Shiota
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, Yonago, Japan
| | - Noriko Itaba
- Departments of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Japan
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17
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Improved human endometrial stem cells differentiation into functional hepatocyte-like cells on a glycosaminoglycan/collagen-grafted polyethersulfone nanofibrous scaffold. J Biomed Mater Res B Appl Biomater 2016; 105:2516-2529. [DOI: 10.1002/jbm.b.33758] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/13/2016] [Accepted: 07/11/2016] [Indexed: 12/11/2022]
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Transforming growth factor-beta 1 delivery from microporous scaffolds decreases inflammation post-implant and enhances function of transplanted islets. Biomaterials 2015; 80:11-19. [PMID: 26701143 DOI: 10.1016/j.biomaterials.2015.11.065] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 11/17/2015] [Accepted: 11/29/2015] [Indexed: 01/15/2023]
Abstract
Biomaterial scaffolds are central to many regenerative strategies as they create a space for infiltration of host tissue and provide a platform to deliver growth factors and progenitor cells. However, biomaterial implantation results in an unavoidable inflammatory response, which can impair tissue regeneration and promote loss or dysfunction of transplanted cells. We investigated localized TGF-β1 delivery to modulate this immunological environment around scaffolds and transplanted cells. TGF-β1 was delivered from layered scaffolds, with protein entrapped within an inner layer and outer layers designed for cell seeding and host tissue integration. Scaffolds were implanted into the epididymal fat pad, a site frequently used for cell transplantation. Expression of cytokines TNF-α, IL-12, and MCP-1 were decreased by at least 40% for scaffolds releasing TGF-β1 relative to control scaffolds. This decrease in inflammatory cytokine production corresponded to a 60% decrease in leukocyte infiltration. Transplantation of islets into diabetic mice on TGF-β1 scaffolds significantly improved the ability of syngeneic islets to control blood glucose levels within the first week of transplant and delayed rejection of allogeneic islets. Together, these studies emphasize the ability of localized TGF-β1 delivery to modulate the immune response to biomaterial implants and enhance cell function in cell-based therapies.
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Tsolaki E, Yannaki E. Stem cell-based regenerative opportunities for the liver: State of the art and beyond. World J Gastroenterol 2015; 21:12334-12350. [PMID: 26604641 PMCID: PMC4649117 DOI: 10.3748/wjg.v21.i43.12334] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/16/2015] [Accepted: 10/20/2015] [Indexed: 02/06/2023] Open
Abstract
The existing mismatch between the great demand for liver transplants and the number of available donor organs highlights the urgent need for alternative therapeutic strategies in patients with acute or chronic liver failure. The rapidly growing knowledge on stem cell biology and the intrinsic repair processes of the liver has opened new avenues for using stem cells as a cell therapy platform in regenerative medicine for hepatic diseases. An impressive number of cell types have been investigated as sources of liver regeneration: adult and fetal liver hepatocytes, intrahepatic stem cell populations, annex stem cells, adult bone marrow-derived hematopoietic stem cells, endothelial progenitor cells, mesenchymal stromal cells, embryonic stem cells, and induced pluripotent stem cells. All these highly different cell types, used either as cell suspensions or, in combination with biomaterials as implantable liver tissue constructs, have generated great promise for liver regeneration. However, fundamental questions still need to be addressed and critical hurdles to be overcome before liver cell therapy emerges. In this review, we summarize the state-of-the-art in the field of stem cell-based therapies for the liver along with existing challenges and future perspectives towards a successful liver cell therapy that will ultimately deliver its demanding goals.
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20
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In Situ Transplantation of Alginate Bioencapsulated Adipose Tissues Derived Stem Cells (ADSCs) via Hepatic Injection in a Mouse Model. PLoS One 2015; 10:e0138184. [PMID: 26372641 PMCID: PMC4570793 DOI: 10.1371/journal.pone.0138184] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 08/27/2015] [Indexed: 01/01/2023] Open
Abstract
Objective Adipose tissue derived stem cells (ADSCs) transplantation has recently gained widespread enthusiasm, particularly in the perspective to use them as potential alternative cell sources for hepatocytes in cell based therapy, mainly because of their capability of hepatogenic differentiation in vitro and in vivo. But some challenges remain to be addressed, including whether ADSCs can be provided effectively to the target organ and whether subsequent proliferation of transplanted cells can be achieved. To date, intrasplenic injection is the conventional method to deliver ADSCs into the liver; however, a number of donor cells retained in the spleen has been reported. In this study, our objective is to evaluate a novel route to transplant ADSCs specifically to the liver. We aimed to test the feasibility of in situ transplantation of ADSCs by injecting bioencapsulated ADSCs into the liver in mouse model. Methods The ADSCs isolated from human alpha 1 antitrypsin (M-hAAT) transgenic mice were used to allow delivered ADSCs be readily identified in the liver of recipient mice, and alginate was selected as a cell carrier. We first evaluated whether alginate microspheres are implantable into the liver tissue by injection and whether ADSCs could migrate from alginate microspheres (study one). Once proven, we then examined the in vivo fate of ADSCs loaded microspheres in the liver. Specifically, we evaluated whether transplanted, undifferentiated ASDCs could be induced by the local microenvironment toward hepatogenic differentiation and the distribution of surviving ADSCs in major tissue organs (study two). Results Our results indicated ADSCs loaded alginate microspheres were implantable into the liver. Both degraded and residual alginate microspheres were observed in the liver up to three weeks. The viable ADSCs were detectable surrounding degraded and residual alginate microspheres in the liver and other major organs such as bone marrow and the lungs. Importantly, transplanted ADSCs underwent hepatogenic differentiation to become cells expressing albumin in the liver. These findings improve our understanding of the interplay between ADSCs (donor cells), alginate (biomaterial), and local microenvironment in a hepatectomized mouse model, and might improve the strategy of in situ transplantation of ADSCs in treating liver diseases.
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21
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Salmasi S, Kalaskar DM, Yoon WW, Blunn GW, Seifalian AM. Role of nanotopography in the development of tissue engineered 3D organs and tissues using mesenchymal stem cells. World J Stem Cells 2015; 7:266-80. [PMID: 25815114 PMCID: PMC4369486 DOI: 10.4252/wjsc.v7.i2.266] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 11/07/2014] [Accepted: 12/03/2014] [Indexed: 02/06/2023] Open
Abstract
Recent regenerative medicine and tissue engineering strategies (using cells, scaffolds, medical devices and gene therapy) have led to fascinating progress of translation of basic research towards clinical applications. In the past decade, great deal of research has focused on developing various three dimensional (3D) organs, such as bone, skin, liver, kidney and ear, using such strategies in order to replace or regenerate damaged organs for the purpose of maintaining or restoring organs' functions that may have been lost due to aging, accident or disease. The surface properties of a material or a device are key aspects in determining the success of the implant in biomedicine, as the majority of biological reactions in human body occur on surfaces or interfaces. Furthermore, it has been established in the literature that cell adhesion and proliferation are, to a great extent, influenced by the micro- and nano-surface characteristics of biomaterials and devices. In addition, it has been shown that the functions of stem cells, mesenchymal stem cells in particular, could be regulated through physical interaction with specific nanotopographical cues. Therefore, guided stem cell proliferation, differentiation and function are of great importance in the regeneration of 3D tissues and organs using tissue engineering strategies. This review will provide an update on the impact of nanotopography on mesenchymal stem cells for the purpose of developing laboratory-based 3D organs and tissues, as well as the most recent research and case studies on this topic.
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Affiliation(s)
- Shima Salmasi
- Shima Salmasi, Deepak M Kalaskar, Alexander M Seifalian, UCL Division of Surgery and Interventional Science, Centre for Nanotechnology and Regenerative Medicine, University College London, NW3 2PF London, United Kingdom
| | - Deepak M Kalaskar
- Shima Salmasi, Deepak M Kalaskar, Alexander M Seifalian, UCL Division of Surgery and Interventional Science, Centre for Nanotechnology and Regenerative Medicine, University College London, NW3 2PF London, United Kingdom
| | - Wai-Weng Yoon
- Shima Salmasi, Deepak M Kalaskar, Alexander M Seifalian, UCL Division of Surgery and Interventional Science, Centre for Nanotechnology and Regenerative Medicine, University College London, NW3 2PF London, United Kingdom
| | - Gordon W Blunn
- Shima Salmasi, Deepak M Kalaskar, Alexander M Seifalian, UCL Division of Surgery and Interventional Science, Centre for Nanotechnology and Regenerative Medicine, University College London, NW3 2PF London, United Kingdom
| | - Alexander M Seifalian
- Shima Salmasi, Deepak M Kalaskar, Alexander M Seifalian, UCL Division of Surgery and Interventional Science, Centre for Nanotechnology and Regenerative Medicine, University College London, NW3 2PF London, United Kingdom
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Zhou Q, Li L, Li J. Stem cells with decellularized liver scaffolds in liver regeneration and their potential clinical applications. Liver Int 2015; 35:687-94. [PMID: 24797694 DOI: 10.1111/liv.12581] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/27/2014] [Indexed: 02/13/2023]
Abstract
End-stage hepatic failure is a potentially life-threatening condition for which orthotopic liver transplantation (OLT) is the only effective treatment. However, a shortage of available donor organs for transplantation each year results in the death of many patients waiting for liver transplantation. Cell-based therapies and hepatic tissue engineering have been considered as alternatives to liver transplantation. However, primary hepatocyte transplantation has rarely produced therapeutic effects because mature hepatocytes cannot be effectively expanded in vitro, and the availability of hepatocytes is often limited by shortages of donor organs. Decellularization is an attractive technique for scaffold preparation in stem cell-based liver engineering, as the resulting material can potentially retain the liver architecture, native vessel network and specific extracellular matrix (ECM). Thus, the reconstruction of functional and practical liver tissue using decellularized scaffolds becomes possible. This review focuses on the current understanding of liver tissue engineering, whole-organ liver decellularization techniques, cell sources for recellularization and potential clinical applications and challenges.
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Affiliation(s)
- Qian Zhou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Rd., Hangzhou, 310003, China
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Cieślar-Pobuda A, Wiechec E. Research on liver regeneration as an answer to the shortage of donors for liver transplantation. Hepatol Res 2014; 44:944-6. [PMID: 25224133 DOI: 10.1111/hepr.12265] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Artur Cieślar-Pobuda
- Department of Clinical & Experimental Medicine (IKE), Division of Cell Biology, Integrative Regenerative Medicine Center (IGEN), Linköping University, Linkoping, Sweden; Biosystems Group, Institute of Automatic Control, Silesian University of Technology, Gliwice, Poland
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Manipulating hepatocellular carcinoma cell fate in orthogonally cross-linked hydrogels. Biomaterials 2014; 35:6898-906. [PMID: 24857292 DOI: 10.1016/j.biomaterials.2014.04.118] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 04/29/2014] [Indexed: 12/22/2022]
Abstract
De-differentiation and loss of function in hepatocytes during two-dimensional (2D) tissue culture significantly hinders the progress of liver research. An ideal three-dimensional (3D) in vitro liver parenchymal cell culture platform should restore cell-cell and cell-matrix interactions, as well as normal hepatocyte polarity. Here, we report an orthogonal thiol-ene hydrogel system for culturing liver cell lines (e.g. Huh7 and HepG2). The hydrogels were prepared by a radical-mediated orthogonal thiol-norbornene photo-click chemistry using poly(ethylene glycol)-tetra-norbornene (PEG4NB) macromer and di-thiol containing linker (e.g., dithiothreitol (DTT) or bis-cysteine matrix metalloproteinase (MMP)-sensitive peptide). This system also allows facile incorporation of bioactive peptides (e.g., fibronectin-derived RGDS) to improve cell-matrix interactions. Encapsulated Huh7 and HepG2 cells showed elevated urea secretion and CYP3A4 enzymatic activities, as well as up-regulated mRNA levels of multiple hepatocyte genes (e.g., CYP3A4, BESP, and NTCP). Importantly, this is the first 3D hydrogel system that up-regulates the expression of NCTP in encapsulated Huh7 and HepG2 cell lines without any genetic modification or the addition of growth factors and chemical additives. Furthermore, the encapsulated cells displayed hepatocyte-like polarity distinctively different from the polarity displayed in 2D culture. These characteristics not only allow the study of hepatology in 3D using inexpensive cell lines, but also permit large-scale small-molecule screening. The up-regulation of NTCP expression and restoration of hepatocyte-like polarity in our hydrogels also shed light on future study of hepatitis B virus infection in vitro.
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Nayak S, Dey S, Kundu SC. Silk sericin-alginate-chitosan microcapsules: hepatocytes encapsulation for enhanced cellular functions. Int J Biol Macromol 2014; 65:258-66. [PMID: 24486492 DOI: 10.1016/j.ijbiomac.2014.01.042] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 01/13/2014] [Accepted: 01/17/2014] [Indexed: 12/22/2022]
Abstract
The encapsulation based technology permits long-term delivery of desired therapeutic products in local regions of body without the need of immunosuppressant drugs. In this study microcapsules composed of sericin and alginate micro bead as inner core and with an outer chitosan shell are prepared. This work is proposed for live cell encapsulation for potential therapeutic applications. The sericin protein is obtained from cocoons of non-mulberry silkworm Antheraea mylitta. The sericin-alginate micro beads are prepared via ionotropic gelation under high applied voltage. The beads further coated with chitosan and crosslinked with genipin. The microcapsules developed are nearly spherical in shape with smooth surface morphology. Alamar blue assay and confocal microscopy indicate high cell viability and uniform encapsulated cell distribution within the sericin-alginate-chitosan microcapsules indicating that the microcapsules maintain favourable microenvironment for the cells. The functional analysis of encapsulated cells demonstrates that the glucose consumption, urea secretion rate and intracellular albumin content increased in the microcapsules. The study suggests that the developed sericin-alginate-chitosan microcapsule contributes towards the development of cell encapsulation model. It also offers to generate enriched population of metabolically and functionally active cells for the future therapeutics especially for hepatocytes transplantation in acute liver failure.
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Affiliation(s)
- Sunita Nayak
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India.
| | - Sanchareeka Dey
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India.
| | - Subhas C Kundu
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India.
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Abstract
Liver extracellular matrix (ECM) composition, topography and biomechanical properties influence cell-matrix interactions. The ECM presents guiding cues for hepatocyte phenotype maintenance, differentiation and proliferation both in vitro and in vivo. Current understanding of such cell-guiding cues along with advancement of techniques for scaffold fabrication has led to evolution of matrices for liver tissue culture from simple porous scaffolds to more complex 3D matrices with microarchitecture similar to in vivo. Natural and synthetic polymeric biomaterials fabricated in different topographies and porous matrices have been used for hepatocyte culture. Heterotypic and homotypic cell interactions are necessary for developing an adult liver as well as an artificial liver. A high oxygen demand of hepatocytes as well as graded oxygen distribution in liver is another challenging attribute of the normal liver architecture that further adds to the complexity of engineered substrate design. A balanced interplay of cell-matrix interactions along with cell-cell interactions and adequate supply of oxygen and nutrient determines the success of an engineered substrate for liver cells. Techniques devised to incorporate these features of hepatic function and mimic liver architecture range from maintaining liver cells in mm-sized tailor-made scaffolds to a more bottoms up approach that starts from building the microscopic subunit of the whole tissue. In this review, we discuss briefly various biomaterials used for liver tissue engineering with respect to design parameters such as scaffold composition and chemistry, biomechanical properties, topography, cell-cell interactions and oxygenation.
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Affiliation(s)
- Era Jain
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, 208016, UP, India.,Biomedical Engineering Department, St. Louis University, St. Louis, MO, USA
| | - Apeksha Damania
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, 208016, UP, India
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, 208016, UP, India.
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