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Puertas-Bartolomé M, Venegas-Bustos D, Acosta S, Rodríguez-Cabello JC. Contribution of the ELRs to the development of advanced in vitro models. Front Bioeng Biotechnol 2024; 12:1363865. [PMID: 38650751 PMCID: PMC11033926 DOI: 10.3389/fbioe.2024.1363865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 03/18/2024] [Indexed: 04/25/2024] Open
Abstract
Developing in vitro models that accurately mimic the microenvironment of biological structures or processes holds substantial promise for gaining insights into specific biological functions. In the field of tissue engineering and regenerative medicine, in vitro models able to capture the precise structural, topographical, and functional complexity of living tissues, prove to be valuable tools for comprehending disease mechanisms, assessing drug responses, and serving as alternatives or complements to animal testing. The choice of the right biomaterial and fabrication technique for the development of these in vitro models plays an important role in their functionality. In this sense, elastin-like recombinamers (ELRs) have emerged as an important tool for the fabrication of in vitro models overcoming the challenges encountered in natural and synthetic materials due to their intrinsic properties, such as phase transition behavior, tunable biological properties, viscoelasticity, and easy processability. In this review article, we will delve into the use of ELRs for molecular models of intrinsically disordered proteins (IDPs), as well as for the development of in vitro 3D models for regenerative medicine. The easy processability of the ELRs and their rational design has allowed their use for the development of spheroids and organoids, or bioinks for 3D bioprinting. Thus, incorporating ELRs into the toolkit of biomaterials used for the fabrication of in vitro models, represents a transformative step forward in improving the accuracy, efficiency, and functionality of these models, and opening up a wide range of possibilities in combination with advanced biofabrication techniques that remains to be explored.
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Affiliation(s)
- María Puertas-Bartolomé
- Technical Proteins Nanobiotechnology, S.L. (TPNBT), Valladolid, Spain
- Bioforge Lab (Group for Advanced Materials and Nanobiotechnology), CIBER's Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Edificio LUCIA, Universidad de Valladolid, Valladolid, Spain
| | - Desiré Venegas-Bustos
- Bioforge Lab (Group for Advanced Materials and Nanobiotechnology), CIBER's Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Edificio LUCIA, Universidad de Valladolid, Valladolid, Spain
| | - Sergio Acosta
- Bioforge Lab (Group for Advanced Materials and Nanobiotechnology), CIBER's Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Edificio LUCIA, Universidad de Valladolid, Valladolid, Spain
| | - José Carlos Rodríguez-Cabello
- Bioforge Lab (Group for Advanced Materials and Nanobiotechnology), CIBER's Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Edificio LUCIA, Universidad de Valladolid, Valladolid, Spain
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Kim JH, Choi JI, Che YH, Sung SH, Lee H, Lee S, Park JH, Lee YI, Lee YS, Jeon WB, Kim YJ. Enhancing Viability of Human Embryonic Stem Cells during Cryopreservation via RGD-REP-Mediated Activation of FAK/AKT/FoxO3a Signaling Pathway. Tissue Eng Regen Med 2023; 20:1133-1143. [PMID: 37610706 PMCID: PMC10646010 DOI: 10.1007/s13770-023-00568-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/15/2023] [Accepted: 07/03/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Cryopreservation is a crucial method for long-term storage and stable allocation of human pluripotent stem cells (hPSCs), which are increasingly being used in various applications. However, preserving hPSCs in cryogenic conditions is challenging due to reduced recovery rates. METHODS To address this issue, the Arginine-Glycine-Aspartate (RGD) motif was incorporated into a recombinant elastin-like peptide (REP). Human embryonic stem cells (hESCs) were treated with REP containing RGD motif (RGD-REP) during suspension and cryopreservation, and the survival rate was analyzed. The underlying mechanisms were also investigated. RESULTS The addition of RGD-REP to the cryopreservation solution improved cell survival and pluripotency marker expression. The improvement was confirmed to be due to the activation of the FAK-AKT cascade by RGD-REP binding to hESC surface interin protein, and consequent inhibition of FoxO3a. The inactivation of FoxO3a reduced the expression of apoptosis-related genes, such as BIM, leading to increased survival of PSCs in a suspension state. CONCLUSION RGD-REP, as a ligand for integrin protein, improves the survival and maintenance of hPSCs during cryopreservation by activating survival signals via the RGD motif. These results have potential implications for improving the efficiency of stem cell usage in both research and therapeutic applications.
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Affiliation(s)
- Jeong Hee Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jeong In Choi
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Young Hyun Che
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Su Haeng Sung
- Department of Pathology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hojae Lee
- Cedars-Sinai Medical Center, Biomanufacturing Center, Los Angeles, CA, 90069, USA
| | - Sun Lee
- Department of Pathology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jae-Hoon Park
- Department of Pathology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Yun-Il Lee
- Well Aging Research Center, Division of Biotechnology, DGIST, Daegu, 42988, Republic of Korea
- Department of Interdisciplinary Studies, DGIST, Daegu, 42988, Republic of Korea
| | - Young-Sam Lee
- Department of New Biology, DGIST, Daegu, 42988, Republic of Korea
| | - Won Bae Jeon
- Well Aging Research Center, Division of Biotechnology, DGIST, Daegu, 42988, Republic of Korea
| | - Yong Jun Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
- Department of Pathology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea.
- KHU-KIST Department of Converging Science and Technology, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
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Montanucci P, Pescara T, Greco A, Basta G, Calafiore R. Human induced pluripotent stem cells (hiPSC), enveloped in elastin-like recombinamers for cell therapy of type 1 diabetes mellitus (T1D): preliminary data. Front Bioeng Biotechnol 2023; 11:1046206. [PMID: 37180045 PMCID: PMC10166868 DOI: 10.3389/fbioe.2023.1046206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 04/14/2023] [Indexed: 05/15/2023] Open
Abstract
Introduction: Therapeutic application and study of type 1 diabetes disease could benefit from the use of functional β islet-like cells derived from human induced pluripotent stem cells (hiPSCs). Considerable efforts have been made to develop increasingly effective hiPSC differentiation protocols, although critical issues related to cost, the percentage of differentiated cells that are obtained, and reproducibility remain open. In addition, transplantation of hiPSC would require immunoprotection within encapsulation devices, to make the construct invisible to the host's immune system and consequently avoid the recipient's general pharmacologic immunosuppression. Methods: For this work, a microencapsulation system based on the use of "human elastin-like recombinamers" (ELRs) was tested to envelop hiPSC. Special attention was devoted to in vitro and in vivo characterization of the hiPSCs upon coating with ERLs. Results and Discussion: We observed that ELRs coating did not interfere with viability and function and other biological properties of differentiated hiPSCs, while in vivo, ELRs seemed to afford immunoprotection to the cell grafts in preliminary in vivo study. The construct ability to correct hyperglycemia in vivo is in actual progress.
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Goel R, Gulwani D, Upadhyay P, Sarangthem V, Singh TD. Unsung versatility of elastin-like polypeptide inspired spheroid fabrication: A review. Int J Biol Macromol 2023; 234:123664. [PMID: 36791934 DOI: 10.1016/j.ijbiomac.2023.123664] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/23/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
Lately, 3D cell culture technique has gained a lot of appreciation as a research model. Augmented with technological advancements, the area of 3D cell culture is growing rapidly with a diverse array of scaffolds being tested. This is especially the case for spheroid cultures. The culture of cells as spheroids provides opportunities for unanticipated vision into biological phenomena with its application to drug discovery, metabolic profiling, stem cell research as well as tumor, and disease biology. Spheroid fabrication techniques are broadly categorised into matrix-dependent and matrix-independent techniques. While there is a profusion of spheroid fabrication substrates with substantial biological relevance, an economical, modular, and bio-compatible substrate for high throughput production of spheroids is lacking. In this review, we posit the prospects of elastin-like polypeptides (ELPs) as a broad-spectrum spheroid fabrication platform. Elastin-like polypeptides are nature inspired, size-tunable genetically engineered polymers with wide applicability in various arena of biological considerations, has been employed for spheroid culture with profound utility. The technology offers a cheap, high-throughput, reproducible alternative for spheroid culture with exquisite adaptability. Here, we will brief the applicability of 3D cultures as compared to 2D cultures with spheroids being the focal point of the review. Common approaches to spheroid fabrication are discussed with existential limitations. Finally, the versatility of elastin-like polypeptide inspired substrates for spheroid culture has been discussed.
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Affiliation(s)
- Ridhima Goel
- Department of Medical Oncology Laboratory, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Deepak Gulwani
- Department of Medical Oncology Laboratory, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Priyanka Upadhyay
- Department of Medical Oncology Laboratory, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Vijaya Sarangthem
- Department of Pathology, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Thoudam Debraj Singh
- Department of Medical Oncology Laboratory, All India Institute of Medical Sciences, New Delhi 110029, India.
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Nakayama-Iwatsuki K, Hirabayashi M, Hochi S. Fabrication of functional rat pseudo-islets after cryopreservation of pancreatic islets or dispersed islet cells. J Tissue Eng Regen Med 2021; 15:686-696. [PMID: 33999537 DOI: 10.1002/term.3219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 11/12/2022]
Abstract
Dispersed single cells from pancreatic islets can configure the three-dimensional islet-like architecture (pseudo-islets) with insulin secretion potential and controllable size through their aggregation property. The present study was designed to investigate whether cryopreservation of islets or islet cells can contribute to the efficient pseudo-islet fabrication in the rat model. In control group (CT), islet single cells were prepared by trypsin digestion of 50-400-µm ø fresh control islets, and then cultured for 3 days in the U-bottom microwell to fabricate pseudo-islets. In vitrification-warming group (VW), islet single cells were prepared from postwarm islets cryopreserved by vitrification on nylon mesh device, and then cultured for 3 days. In freezing group (FR), islet single cells originated from fresh islets were subjected to a conventional Bicell® freezing, and postthaw cells were cultured for 3 days. To generate 1 islet equivalent pseudo-islets (150 µm ø) by the sphere culture, 1250 CT cells, 1250 VW cells, and 1500 FR cells were seeded to each microwell. The viability of the pseudo-islets was comparable among the three groups (93.9%-96.9%). Furthermore, the insulin secretion assay showed that those pseudo-islets responded sufficiently to the high glucose stimulation. Immunostaining for insulin and glucagon showed that the endocrine cell arrangement of those pseudo-islets is similar to that of native and isolated islets. These islets/pseudo-islets had the β-cells in core and the α-cells in mantle, which was typical characteristic of the rodent islets. However, some clusters of α-cells were observed inside the FR pseudo-islets. Interestingly, the VW pseudo-islets had significantly fewer α-cells than the CT or FR pseudo-islets. These results suggest that the sphere culture of islet cells is useful tool to generate the pseudo-islets with the customized size and normal functionality, even after islet cryopreservation.
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Affiliation(s)
- Kenyu Nakayama-Iwatsuki
- Graduate School of Medicine, Science and Technology, Shinshu University, Ueda, Nagano, Japan
- National Institute for Physiological Sciences, Okazaki, Aichi, Japan
| | - Masumi Hirabayashi
- National Institute for Physiological Sciences, Okazaki, Aichi, Japan
- School of Life Science, The Graduate University for Advanced Studies, Okazaki, Aichi, Japan
| | - Shinichi Hochi
- Graduate School of Medicine, Science and Technology, Shinshu University, Ueda, Nagano, Japan
- Faculty of Textile Science and Technology, Shinshu University, Ueda, Nagano, Japan
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Hwang YJ, Jung GS, Jeon WB, Lee KM. Arg-Gly-Asp-modified elastin-like polypeptide regulates cell proliferation and cell cycle proteins via the phosphorylation of Erk and Akt in pancreatic β-cell. Heliyon 2020; 6:e04918. [PMID: 32995613 PMCID: PMC7501433 DOI: 10.1016/j.heliyon.2020.e04918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/14/2020] [Accepted: 09/08/2020] [Indexed: 11/24/2022] Open
Abstract
Objective Enhancement of β-cell proliferation plays an important role in maintaining β-cell mass and function, and in improving pancreatic β-cell survival before transplantation. Extracellular matrix (ECM) components increase the adhesion and proliferation of β-cells, and the RGD-modified elastin-like polypeptide (RGD-ELP, REP) has been described as a bioactive matrix. In this study, we investigated whether REP could enhance β-cell adhesion and proliferation and elucidated the signaling pathways involved. Methods We investigated the effect of REP on cell adhesion, proliferation and insulin secretion via assays using Rin-m and rat islets. Crystal violet, CCK-8, and BrdU assay, FACS, western blot, real time q-PCR analyses and insulin ELISA were examined. To explain the associated mechanisms, phosphorylation of Akt and extracellular signal-regulated kinase (Erk) were measured. Results REP more increased the adhesion, proliferation and survival of Rin-m cells compared to elastin-like poly peptide (ELP) without RGD-motif. The enhancement of β-cell proliferation by REP was associated with increased cyclin D1, cyclin D2 and cdk6, and decreased p27 levels. When β-cells were cultured on REP, Erk and the phosphatidylinositol 3-kinase (PI3-kinase) downstream effector, Akt was stimulated. Treatment with the Erk pathway inhibitor and PI3-kinase inhibitor decreased REP-induced β-cell adhesion and proliferation, and regulated REP-induced cell cycle proteins. Additionally, REP increased the mRNA and protein levels of insulin and its transcription factor, PDX-1, and insulin secretion. Conclusions Our results demonstrate that the up-regulation of the PI3K/Akt and Erk signaling pathways and the regulation of cell cycle proteins by REP could serve as effective strategies for improving pancreatic β-cell adhesion and proliferation.
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Affiliation(s)
- Yeo Jin Hwang
- Division of Electronics & Information System, Daegu Gyeongbuk Institute of Science and Technology, Daegu, Republic of Korea
| | - Gwon-Soo Jung
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
| | - Won Bae Jeon
- Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology, Daegu, Republic of Korea
| | - Kyeong-Min Lee
- Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology, Daegu, Republic of Korea
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Wang JK, Cheam NMJ, Irvine SA, Tan NS, Venkatraman S, Tay CY. Interpenetrating Network of Alginate–Human Adipose Extracellular Matrix Hydrogel for Islet Cells Encapsulation. Macromol Rapid Commun 2020; 41:e2000275. [DOI: 10.1002/marc.202000275] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/04/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Jun Kit Wang
- School of Materials Science and Engineering Nanyang Technological University Singapore N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Nicole Mein Ji Cheam
- School of Materials Science and Engineering Nanyang Technological University Singapore N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Scott Alexander Irvine
- School of Materials Science and Engineering Nanyang Technological University Singapore N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Nguan Soon Tan
- School of Biological Sciences Nanyang Technological University Singapore 60 Nanyang Drive Singapore 637551 Singapore
- Lee Kong Chian School of Medicine Nanyang Technological University Singapore 11 Mandalay Road Singapore 308232 Singapore
| | - Subbu Venkatraman
- Department of Materials Science and Engineering National University of Singapore Blk EA, 9 Engineering Drive 1 Singapore 117575 Singapore
| | - Chor Yong Tay
- School of Materials Science and Engineering Nanyang Technological University Singapore N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
- School of Biological Sciences Nanyang Technological University Singapore 60 Nanyang Drive Singapore 637551 Singapore
- Environmental Chemistry and Materials Centre Nanyang Environment and Water Research Institute 1 CleanTech Loop, CleanTech One Singapore 637141 Singapore
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Crisóstomo J, Pereira AM, Bidarra SJ, Gonçalves AC, Granja PL, Coelho JF, Barrias CC, Seiça R. ECM-enriched alginate hydrogels for bioartificial pancreas: an ideal niche to improve insulin secretion and diabetic glucose profile. J Appl Biomater Funct Mater 2019; 17:2280800019848923. [PMID: 31623515 DOI: 10.1177/2280800019848923] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
INTRODUCTION The success of a bioartificial pancreas crucially depends on ameliorating encapsulated beta cells survival and function. By mimicking the cellular in vivo niche, the aim of this study was to develop a novel model for beta cells encapsulation capable of establishing an appropriate microenvironment that supports interactions between cells and extracellular matrix (ECM) components. METHODS ECM components (Arg-Gly-Asp, abbreviated as RGD) were chemically incorporated in alginate hydrogels (alginate-RGD). After encapsulation, INS-1E beta cells outcome was analyzed in vitro and after their implantation in an animal model of diabetes. RESULTS Our alginate-RGD model demonstrated to be a good in vitro niche for supporting beta cells viability, proliferation, and activity, namely by improving the key feature of insulin secretion. RGD peptides promoted cell-matrix interactions, enhanced endogenous ECM components expression, and favored the assembly of individual cells into multicellular spheroids, an essential configuration for proper beta cell functioning. In vivo, our pivotal model for diabetes treatment exhibited an improved glycemic profile of type 2 diabetic rats, where insulin secreted from encapsulated cells was more efficiently used. CONCLUSIONS We were able to successfully introduce a novel valuable function in an old ally in biomedical applications, the alginate. The proposed alginate-RGD model stands out as a promising approach to improve beta cells survival and function, increasing the success of this therapeutic strategy, which might greatly improve the quality of life of an increasing number of diabetic patients worldwide.
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Affiliation(s)
- Joana Crisóstomo
- IBILI - Institute for Biomedical Imaging and Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Ana M Pereira
- IBILI - Institute for Biomedical Imaging and Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Sílvia J Bidarra
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Porto, Portugal
| | - Ana C Gonçalves
- University Clinic of Hematology and Applied Molecular Biology Unit, University of Coimbra, Coimbra, Portugal.,CIMAGO - Centre of Investigation in Environment Genetics and Oncobiology, University of Coimbra, Coimbra, Portugal.,CNC.IBILI - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Pedro L Granja
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Porto, Portugal.,FEUP - Faculdade de Engenharia, Universidade do Porto, Porto, Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Jorge Fj Coelho
- CEMUC - Centre for Mechanical Engineering of the University of Coimbra, University of Coimbra, Coimbra, Portugal
| | - Cristina C Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Porto, Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Raquel Seiça
- IBILI - Institute for Biomedical Imaging and Life Sciences, University of Coimbra, Coimbra, Portugal
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Lee S, Kim JE, Seo HJ, Jang JH. Design of fibronectin type III domains fused to an elastin-like polypeptide for the osteogenic differentiation of human mesenchymal stem cells. Acta Biochim Biophys Sin (Shanghai) 2019; 51:856-863. [PMID: 31267123 DOI: 10.1093/abbs/gmz063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Indexed: 12/23/2022] Open
Abstract
Extracellular matrix (ECM) including fibronectin (FN) and elastin plays a pivotal role in providing a microenvironment to support tissue regeneration in stem cell therapy. To develop a novel biomimetic ECM for stem cell differentiation, we engineered FN type III 9 and 10 domains fused to elastin-like polypeptides (FN-ELPs). The recombinant FN-ELP fusion protein was expressed in Escherichia coli and purified by inverse transition cycling. Human mesenchymal stem cells (hMSCs) cultured on plates coated with FN-ELP had significantly greater adhesion activity and proliferation than cells grown on non-coated plates. FN-ELP induced the osteogenic differentiation by elevating alkaline phosphatase (ALP) and mineralization activity of hMSCs. Furthermore, the osteogenic marker gene expressions of ALP, collagen type I (Col I), osteopontin (OPN), and transcriptional coactivator with a PDZ-binding motif (TAZ) were increased in hMSCs cultured on plates coated with FN-ELP. We reported a novel biomimetic ECM with potential for bone regeneration that promotes the osteogenic differentiation of hMSCs.
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Affiliation(s)
- Sujin Lee
- Department of Biochemistry & IRIMS, Inha University School of Medicine, Incheon 22212, Korea
| | - Ji-Eun Kim
- Department of Biochemistry & IRIMS, Inha University School of Medicine, Incheon 22212, Korea
| | - Hye-Jin Seo
- Department of Biochemistry & IRIMS, Inha University School of Medicine, Incheon 22212, Korea
| | - Jun-Hyeog Jang
- Department of Biochemistry & IRIMS, Inha University School of Medicine, Incheon 22212, Korea
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Lee KM, Kim JH, Choi ES, Kim E, Choi SK, Jeon WB. RGD-containing elastin-like polypeptide improves islet transplantation outcomes in diabetic mice. Acta Biomater 2019; 94:351-360. [PMID: 31200117 DOI: 10.1016/j.actbio.2019.06.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/24/2019] [Accepted: 06/10/2019] [Indexed: 12/22/2022]
Abstract
Successful islet transplantation critically depends on the isolation of healthy islets. However, the islet isolation procedure itself contributes to islet death due to the destruction of intra- and peri-islet extracellular matrices (ECMs) during digestion. We investigated whether an RGD-containing elastin-like polypeptide (REP) could function as a self-assembling matrix to replenish ECMs and protects islets from cell death. Immediately following isolation, islets were coated with REP coacervate particles via isothermal adsorption of an REP solution followed by thermal gelation. REP-coated islets displayed increased viability and insulin secretory capacity in pretransplant culture compared to untreated islets. Co-transplantation of REP-treated islets and REP beneath the renal sub-capsule in streptozotocin-induced diabetic mice restored normoglycemia and serum insulin levels. Mice that received co-transplants maintained normoglycemia for a longer period of time than those receiving untreated islets without REP. Moreover, co-transplantation sites exhibited enhanced β-cell proliferation and vascularization. Thus, the REP-based coacervation strategy improve the survival, function and therapeutic potential of transplanted islets. STATEMENT OF SIGNIFICANCE: 1). An artificial matrix polypeptide comprised of thermoresponsive elastin-like peptides and integrin-stimulatory RGD ligands (REP) to reconstitute damaged or lost matrices. 2). Through body temperature-induced coacervation, REP reconstitutes intra-islet environment and enhances islet viability and insulin secretion by activating the pro-survival and insulin signaling pathways. 3). REP-coated islets were transplanted together with the matrix polypeptide under the kidney sub-capsule of mice, it develops a new peri-insular environment, which protects the islet grafts from immune rejection thus extending islet longevity. 4). Our data suggest that in situ self-assembly of biomimetic islet environments become a new platform allowing for improved islet transplantation at extrahepatic sites.
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Affiliation(s)
- Kyeong-Min Lee
- Laboratory of Biochemistry and Cellular Engineering, Companion Diagnostics and Medical Technology Research Group, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea
| | - Jung-Hee Kim
- Laboratory of Biochemistry and Cellular Engineering, Companion Diagnostics and Medical Technology Research Group, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea
| | - Eun-Sook Choi
- Laboratory of Biochemistry and Cellular Engineering, Companion Diagnostics and Medical Technology Research Group, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea
| | - Eunjoo Kim
- Laboratory of Biochemistry and Cellular Engineering, Companion Diagnostics and Medical Technology Research Group, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea
| | - Seong-Kyoon Choi
- Core Protein Resources Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea
| | - Won Bae Jeon
- Laboratory of Biochemistry and Cellular Engineering, Companion Diagnostics and Medical Technology Research Group, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea.
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Cho JH, Lee KM, Lee YI, Nam HG, Jeon WB. Glutamate decarboxylase 67 contributes to compensatory insulin secretion in aged pancreatic islets. Islets 2019; 11:33-43. [PMID: 31084527 PMCID: PMC6548491 DOI: 10.1080/19382014.2019.1599708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pancreatic islets play an essential role in regulating blood glucose levels. Age-dependent development of glucose intolerance and insulin resistance results in hyperglycemia, which in turn stimulates insulin synthesis and secretion from aged islets, to fulfill the increased demand for insulin. However, the mechanism underlying enhanced insulin secretion remains unknown. Glutamic acid decarboxylase 67 (GAD67) catalyzes the conversion of glutamate into γ-aminobutyric acid (GABA) and CO2. Both glutamate and GABA can affect islet function. Here, we investigated the role of GAD67 in insulin secretion in young (3 month old) and aged (24 month old) C57BL/6J male mice. Unlike young mice, aged mice displayed glucose-intolerance and insulin-resistance. However, aged mice secreted more insulin and showed lower fed blood glucose levels than young mice. GAD67 levels in primary islets increased with aging and in response to high glucose levels. Inhibition of GAD67 activity using a potent inhibitor of GAD, 3-mercaptopropionic acid, abrogated glucose-stimulated insulin secretion from a pancreatic β-cell line and from young and aged islets. Collectively, our results suggest that blood glucose levels regulate GAD67 expression, which contributes to β-cell responses to impaired glucose homeostasis caused by advanced aging.
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Affiliation(s)
- Jung Hoon Cho
- School of Interdisciplinary Bioscience and Bioengineering, POSTECH, Pohang, Korea
- Center for Plant Aging Research, Institute for Basic Science, Daegu, Korea
| | - Kyeong-Min Lee
- Laboratory of Biochemistry and Cellular Engineering, DGIST, Daegu, Korea
| | - Yun-Il Lee
- Well Aging Research Center, DGIST, Daegu, Korea
| | - Hong Gil Nam
- Center for Plant Aging Research, Institute for Basic Science, Daegu, Korea
- Department of New Biology, DGIST, Daegu, Korea
| | - Won Bae Jeon
- Laboratory of Biochemistry and Cellular Engineering, DGIST, Daegu, Korea
- Department of New Biology, DGIST, Daegu, Korea
- CONTACT Won Bae Jeon Laboratory of Biochemistry and Cellular Engineering, DGIST, Daegu 42988, Korea
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12
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Kim S, Kim SY, Choi SK, Bae J, Jeon WB, Jang JE, Moon C. Spheroid Culture of Mammalian Olfactory Receptor Neurons: Potential Applications for a Bioelectronic Nose. Exp Neurobiol 2018; 27:574-592. [PMID: 30636907 PMCID: PMC6318561 DOI: 10.5607/en.2018.27.6.574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/13/2018] [Accepted: 11/22/2018] [Indexed: 11/19/2022] Open
Abstract
The olfactory system can detect many odorants with high sensitivity and selectivity based on the expression of nearly a thousand types of olfactory receptors (ORs) in olfactory receptor neurons (ORNs). These ORs have a dynamic odorant detection range and contribute to signal encoding processes in the olfactory bulb (OB). To harness the capabilities of the olfactory system and develop a biomimetic sensor, stable culture and maintenance of ORNs are required. However, in vitro monolayer culture models have several key limitations: i) short available period of cultured neurons, ii) low cultural efficiency, and iii) long-term storage challenges. This study aims to develop a technique: i) to support the spheroid culture of primary ORN precursors facilitating stable maintenance and long-term storage, and ii) to demonstrate the viability of ORN spheroid culture in developing an olfactory system mimetic bioelectronic nose. Recombinant protein (REP; TGPG[VGRGD(VGVPG)6]20WPC) was used to form the ORN spheroids. Spheroid formation enabled preservation of primary cultured ORNs without a significant decrease in viability or the expression of stemness markers for ten days. Physiological characteristics of the ORNs were verified by monitoring intracellular calcium concentration upon odorant mixture stimulation; response upon odorant stimulation were observed at least for ten days in these cultivated ORNs differentiated from spheroids. Coupling ORNs with multi electrode array (MEA) enabled the detection and discrimination of odorants by analyzing the electrical signal patterns generated following odorant stimulation. Taken together, the ORN spheroid culture process is a promising technique for the development of a bioelectronic nose and high-throughput odorant screening device.
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Affiliation(s)
- Samhwan Kim
- Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea
| | - So Yeun Kim
- Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea.,Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea
| | - Seong-Kyun Choi
- Core Protein Resources Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea
| | - Jisub Bae
- Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea
| | - Won Bae Jeon
- Companion Diagnostics and Medical Technology Research Group, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea
| | - Jae Eun Jang
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea
| | - Cheil Moon
- Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea.,Convergence Research Advanced Centre for Olfaction, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea
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13
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Montalbano G, Toumpaniari S, Popov A, Duan P, Chen J, Dalgarno K, Scott WE, Ferreira AM. Synthesis of bioinspired collagen/alginate/fibrin based hydrogels for soft tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:236-246. [PMID: 30033251 DOI: 10.1016/j.msec.2018.04.101] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 03/13/2018] [Accepted: 04/28/2018] [Indexed: 12/22/2022]
Abstract
Hydrogels based on natural polymers offer a range of properties to mimic the native extracellular matrix, and provide microenvironments to preserve cellular function and encourage tissue formation. A tri-component hydrogel using collagen, alginate and fibrin (CAF) was developed and investigated at three collagen concentrations for application as a functional extracellular matrix analogue. Physical-chemical characterization of CAF hydrogels demonstrated a thermo-responsive crosslinking capacity at physiological conditions with stiffness similar to native soft tissues. CAF hydrogels were also assessed for cytocompatibility using L929 murine fibroblasts, pancreatic MIN6 β-cells and human mesenchymal stem cells (hMSCs); and demonstrated good cell viability, proliferation and metabolic activity after 7 days of in vitro culture. CAF hydrogels, especially with 2.5% w/v collagen, increased alkaline phosphatase production in hMSCs indicating potential for the promotion of osteogenic activity. Moreover, CAF hydrogels also increased metabolic activity of MIN6 β-cells and promoted the reconstitution of spherical pseudoislets with sizes ranging between 50 and 150 μm at day 7, demonstrating potential in diabetic therapeutic applications.
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Affiliation(s)
- G Montalbano
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK; Department of Applied Science and Technology, Politecnico di Torino, Turin 10129, Italy
| | - S Toumpaniari
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK; Cambridge Centre for Medical Materials, University of Cambridge, Cambridge CB3 0FS, UK
| | - A Popov
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK; UCL Cancer Institute, University College London, London WC1E 6BT, UK
| | - P Duan
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
| | - J Chen
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
| | - K Dalgarno
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
| | - W E Scott
- Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
| | - A M Ferreira
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK.
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14
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Li L, Li NK, Tu Q, Im O, Mo CK, Han W, Fuss WH, Carroll NJ, Chilkoti A, Yingling YG, Zauscher S, López GP. Functional Modification of Silica through Enhanced Adsorption of Elastin-Like Polypeptide Block Copolymers. Biomacromolecules 2018; 19:298-306. [PMID: 29195275 PMCID: PMC5809277 DOI: 10.1021/acs.biomac.7b01307] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A powerful tool for controlling interfacial properties and molecular architecture relies on the tailored adsorption of stimuli-responsive block copolymers onto surfaces. Here, we use computational and experimental approaches to investigate the adsorption behavior of thermally responsive polypeptide block copolymers (elastin-like polypeptides, ELPs) onto silica surfaces, and to explore the effects of surface affinity and micellization on the adsorption kinetics and the resultant polypeptide layers. We demonstrate that genetic incorporation of a silica-binding peptide (silaffin R5) results in enhanced adsorption of these block copolymers onto silica surfaces as measured by quartz crystal microbalance and ellipsometry. We find that the silaffin peptide can also direct micelle adsorption, leading to close-packed micellar arrangements that are distinct from the sparse, patchy arrangements observed for ELP micelles lacking a silaffin tag, as evidenced by atomic force microscopy measurements. These experimental findings are consistent with results of dissipative particle dynamics simulations. Wettability measurements suggest that surface immobilization hampers the temperature-dependent conformational change of ELP micelles, while adsorbed ELP unimers (i.e., unmicellized block copolymers) retain their thermally responsive property at interfaces. These observations provide guidance on the use of ELP block copolymers as building blocks for fabricating smart surfaces and interfaces with programmable architecture and functionality.
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Affiliation(s)
- Linying Li
- Department of Biomedical Engineering, Duke University, Durham NC 27708, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
| | - Nan K. Li
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
| | - Qing Tu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham NC 27708, U.S.A
| | - Owen Im
- Department of Biomedical Engineering, Duke University, Durham NC 27708, U.S.A
| | - Chia-Kuei Mo
- Department of Biomedical Engineering, Duke University, Durham NC 27708, U.S.A
| | - Wei Han
- Department of Biomedical Engineering, Duke University, Durham NC 27708, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
| | - William H. Fuss
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, U.S.A
| | - Nick J. Carroll
- Department of Biomedical Engineering, Duke University, Durham NC 27708, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham NC 27708, U.S.A
- Department of Mechanical Engineering and Materials Science, Duke University, Durham NC 27708, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
| | - Yaroslava G. Yingling
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
| | - Stefan Zauscher
- Department of Mechanical Engineering and Materials Science, Duke University, Durham NC 27708, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
| | - Gabriel P. López
- Department of Biomedical Engineering, Duke University, Durham NC 27708, U.S.A
- Department of Mechanical Engineering and Materials Science, Duke University, Durham NC 27708, U.S.A
- NSF Research Triangle Materials Research Science and Engineering Center, Durham NC 27708, U.S.A
- Center for Biomedical Engineering, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM 87131, U.S.A
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15
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Jiang B, Yang J, Rahoui N, Taloub N, Huang YD. Functional polymer materials affecting cell attachment. Adv Colloid Interface Sci 2017; 250:185-194. [PMID: 28950985 DOI: 10.1016/j.cis.2017.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 07/26/2017] [Accepted: 09/07/2017] [Indexed: 01/13/2023]
Abstract
This review discusses the functional polymer materials effect on the cell adhesion. The applied polymer materials for the cell adhesion purpose was prepared based on organic fibers and biocompatible hydrogel. On the other hand, the active peptides are incorporated into the polymer materials substrate via the cysteine-containing peptides and N-hydroxysuccinimide-active group. Cancer cells and normal cells were presented for the selective adhesion via the introduced polymer materials substrate containing active peptides including Arginine-Glycine-Aspartic and Isoleucine-Lysine-Valine-Alanine-Valine sequence peptides. This selectivity is revealed by a significant cooperativity between specific and non-specific cell adhesion. This study is of a great impact for the design of the polymeric structures for cell attachment.
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Affiliation(s)
- Bo Jiang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China.
| | - Jian Yang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - Nahla Rahoui
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - Nadia Taloub
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - Yu Dong Huang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
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16
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Xia Y, Lin Z, Li Y, Zhao M, Wang C, Guo M, Zhang B, Zhu B. Targeted delivery of siRNA using RGDfC-conjugated functionalized selenium nanoparticles for anticancer therapy. J Mater Chem B 2017; 5:6941-6952. [PMID: 32264343 DOI: 10.1039/c7tb01315a] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lack of biocompatible and effective delivery carriers is a significant shortcoming for siRNA-mediated cancer therapy. To overcome these limitations, selenium nanoparticles (SeNPs) have been proposed for siRNA transfection vehicles. In this study, we synthesized novel RGDfC peptide modified selenium nanoparticles (RGDfC-SeNPs) as a gene vehicle, which was expected to improve the tumor-targeted delivery activity. RGDfC-SeNPs were compacted with siRNAs (anti-Oct4) by electrostatic interaction, which was capable of protecting siRNA from degradation. RGDfC-SeNPs exhibited excellent ability to deliver siRNA into HepG2 cells. siRNA transfection assay showed that RGDfC-SeNPs presented a higher gene silencing efficacy than conventional lipofectamine 2000. The cytotoxicity of RGDfC-SeNPs/siRNA on normal cells was lower than that on tumor cells, indicating that RGDfC-SeNPs/siRNA exhibited selectivity between normal and cancer cells. Additionally, Oct4 knockdown mediated by the selenium nanoparticle transfection arrested HepG2 cells mainly at the G2/M phase and significantly induced HepG2 cell apoptosis. Western blotting results showed that RGDfC-SeNPs/siRNA might trigger Wnt/β-catenin signaling, and further activate a BCL-2 apoptosis-related signaling pathway to advance HepG2 cell apoptosis. In vivo biodistribution experiments indicated that RGDfC-SeNPs/siRNA nanoparticles were specifically targeted to the HepG2 tumors. Most importantly, RGDfC-SeNPs/siRNA inhibited tumor growth significantly and induced HepG2 cell apoptosis via silencing the Oct4 gene. In addition, the results of H&E staining demonstrated that RGDfC-SeNPs/siRNA had negligible toxicity on the major organs of mice. In a word, this study provides a novel strategy for the design of biocompatible and effective siRNA delivery vehicles in cancer therapy.
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Affiliation(s)
- Yu Xia
- Central Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510120, China.
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17
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Choi SK, Park JK, Kim JH, Lee KM, Kim E, Jeong KS, Jeon WB. Integrin-binding elastin-like polypeptide as an in situ gelling delivery matrix enhances the therapeutic efficacy of adipose stem cells in healing full-thickness cutaneous wounds. J Control Release 2016; 237:89-100. [DOI: 10.1016/j.jconrel.2016.07.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/23/2016] [Accepted: 07/04/2016] [Indexed: 01/13/2023]
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18
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Cheng K, Wang T, Yu M, Wan H, Lin J, Weng W, Wang H. Effects of RGD immobilization on light-induced cell sheet detachment from TiO2 nanodots films. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:240-6. [DOI: 10.1016/j.msec.2016.02.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 01/03/2016] [Accepted: 02/25/2016] [Indexed: 10/22/2022]
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19
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Girotti A, Orbanic D, Ibáñez-Fonseca A, Gonzalez-Obeso C, Rodríguez-Cabello JC. Recombinant Technology in the Development of Materials and Systems for Soft-Tissue Repair. Adv Healthc Mater 2015; 4:2423-55. [PMID: 26172311 DOI: 10.1002/adhm.201500152] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/04/2015] [Indexed: 12/16/2022]
Abstract
The field of biomedicine is constantly investing significant research efforts in order to gain a more in-depth understanding of the mechanisms that govern the function of body compartments and to develop creative solutions for the repair and regeneration of damaged tissues. The main overall goal is to develop relatively simple systems that are able to mimic naturally occurring constructs and can therefore be used in regenerative medicine. Recombinant technology, which is widely used to obtain new tailored synthetic genes that express polymeric protein-based structures, now offers a broad range of advantages for that purpose by permitting the tuning of biological and mechanical properties depending on the intended application while simultaneously ensuring adequate biocompatibility and biodegradability of the scaffold formed by the polymers. This Progress Report is focused on recombinant protein-based materials that resemble naturally occurring proteins of interest for use in soft tissue repair. An overview of recombinant biomaterials derived from elastin, silk, collagen and resilin is given, along with a description of their characteristics and suggested applications. Current endeavors in this field are continuously providing more-improved materials in comparison with conventional ones. As such, a great effort is being made to put these materials through clinical trials in order to favor their future use.
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Affiliation(s)
- Alessandra Girotti
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Doriana Orbanic
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Arturo Ibáñez-Fonseca
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Constancio Gonzalez-Obeso
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - José Carlos Rodríguez-Cabello
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
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20
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The Effects of TiO2 Nanodot Films with RGD Immobilization on Light-Induced Cell Sheet Technology. BIOMED RESEARCH INTERNATIONAL 2015; 2015:582359. [PMID: 26417596 PMCID: PMC4568331 DOI: 10.1155/2015/582359] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 07/06/2015] [Indexed: 11/23/2022]
Abstract
Cell sheet technology is a new strategy in tissue engineering which could be possible to implant into the body without a scaffold. In order to get an integrated cell sheet, a light-induced method via UV365 is used for cell sheet detachment from culture dishes. In this study, we investigated the possibility of cell detachment and growth efficiency on TiO2 nanodot films with RGD immobilization on light-induced cell sheet technology. Mouse calvaria-derived, preosteoblastic (MC3T3-E1) cells were cultured on TiO2 nanodot films with (TR) or without (TN) RGD immobilization. After cells were cultured with or without 5.5 mW/cm2 UV365 illumination, cell morphology, cell viability, osteogenesis related RNA and protein expression, and cell detachment ability were compared, respectively. Light-induced cell detachment was possible when cells were cultured on TR samples. Also, cells cultured on TR samples showed better cell viability, alongside higher protein and RNA expression than on TN samples. This study provides a new biomaterial for light-induced cell/cell sheet harvesting.
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21
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Osteopontin is expressed in the mouse uterus during early pregnancy and promotes mouse blastocyst attachment and invasion in vitro. PLoS One 2014; 9:e104955. [PMID: 25133541 PMCID: PMC4136843 DOI: 10.1371/journal.pone.0104955] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 07/12/2014] [Indexed: 01/14/2023] Open
Abstract
Embryo implantation into the maternal uterus is a decisive step for successful mammalian pregnancy. Osteopontin (OPN) is a member of the small integrin-binding ligand N-linked glycoprotein family and participates in cell adhesion and invasion. In this study, we showed that Opn mRNA levels are up-regulated in the mouse uterus on day 4 and at the implantation sites on days 5 and 8 of pregnancy. Immunohistochemistry localized the OPN protein to the glandular epithelium on day 4 and to the decidual zone on day 8 of pregnancy. OPN mRNA and proteins are induced by in vivo and in vitro decidualization. OPN expression in the endometrial stromal cells is regulated by progesterone, a key regulator during decidualization. As a secreted protein, the protein level of OPN in the uterine cavity is enriched on day 4, and in vitro embryo culturing has indicated that OPN can facilitate blastocyst hatching and adhesion. Knockdown of OPN attenuates the adhesion and invasion of blastocysts in mouse endometrial stromal cells by suppressing the expression and enzymatic activity of matrix metalloproteinase-9 in the trophoblast. Our data indicated that OPN expression in the mouse uterus during early pregnancy is essential for blastocyst hatching and adhesion and that the knockdown of OPN in mouse endometrial stroma cells could lead to a restrained in vitro trophoblast invasion.
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22
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Hsueh YS, Savitha S, Sadhasivam S, Lin FH, Shieh MJ. Design and synthesis of elastin-like polypeptides for an ideal nerve conduit in peripheral nerve regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 38:119-26. [PMID: 24656360 DOI: 10.1016/j.msec.2014.01.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/30/2013] [Accepted: 01/30/2014] [Indexed: 01/26/2023]
Abstract
The study involves design and synthesis of three different elastin like polypeptide (ELP) gene monomers namely ELP1, ELP2 and ELP3 that encode for ELP proteins. The formed ELPs were assessed as an ideal nerve conduit for peripheral nerve regeneration. ELP1 was constructed with a small elongated pentapeptide carrying VPGVG sequence to mimic the natural polypeptide ELP. The ELP2 was designed by the incorporation of 4-penta peptide chains to improve the biocompatibility and mechanical strength. Thus, the third position in unique VPGVG was replaced with alanine to VPAVG and in a similar way modified to VPGKG, VPGEG and VPGIG with the substitution of lysine, glutamic acid and isoleucine. In ELP3, fibronectin C5 domain endowed with REDV sequence was introduced to improve the cell attachment. The ELP1, ELP2 and ELP3 proteins expressed by Escherichia coli were purified by inverse transition cycling (ITC). The purified ELPs were confirmed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and western blotting. The Schwann cell (SC) morphology and cell adhesion were assessed by fabrication of ELP membrane cross-linked with glutaraledhyde. The Schwann cell proliferation was measured by WST-1 assay. Immunofluorostaining of Schwann cells was accomplished with SC specific phenotypic marker, S100.
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Affiliation(s)
- Yu-Sheng Hsueh
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - S Savitha
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; Department of Biotechnology, Sree Sastha Institute of Engineering and Technology, Chennai, India; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - S Sadhasivam
- Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, Miaoli 350, Taiwan
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, Miaoli 350, Taiwan; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan.
| | - Ming-Jium Shieh
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; College of Medicine, National Taiwan University Hospital, Taipei 100, Taiwan; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan
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23
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Jung GS, Lee KM, Park JK, Choi SK, Jeon WB. Morphogenetic and neuronal characterization of human neuroblastoma multicellular spheroids cultured under undifferentiated and all-trans-retinoic acid-differentiated conditions. BMB Rep 2013; 46:276-81. [PMID: 23710639 PMCID: PMC4133894 DOI: 10.5483/bmbrep.2013.46.5.196] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
In this study, we aimed to compare the morphogenetic and neuronal characteristics between monolayer cells and spheroids. For this purpose, we established spheroid formation by growing SH-SY5Y cells on the hydrophobic surfaces of thermally-collapsed elastin-like polypeptide. After 4 days of culture, the relative proliferation of the cells within spheroids was approximately 92% of the values for monolayer cultures. As measured by quantitative assays for mRNA and protein expressions, the production of synaptophysin and neuronspecific enolase (NSE) as well as the contents of cell adhesion molecules (CAMs) and extracellular matrix (ECM) proteins are much higher in spheroids than in monolayer cells. Under the all-trans-retinoic acid (RA)-induced differentiation condition, spheroids extended neurites and further up-regulated the expression of synaptophysin, NSE, CAMs, and ECM proteins. Our data indicate that RA-differentiated SH-SY5Y neurospheroids are functionally matured neuronal architectures. [BMB Reports 2013; 46(5): 276-281]
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Affiliation(s)
- Gwon-Soo Jung
- Laboratory of Biochemistry and Cellular Engineering, Division of NanoBio Technology, Daegu Gyeongbuk Institute of Science and Technology, Daegu 711-873, Korea
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24
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Choi SK, Kim JH, Park JK, Lee KM, Kim E, Jeon WB. Cytotoxicity and inhibition of intercellular interaction in N2a neurospheroids by perfluorooctanoic acid and perfluorooctanesulfonic acid. Food Chem Toxicol 2013; 60:520-9. [PMID: 23948355 DOI: 10.1016/j.fct.2013.07.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/17/2013] [Accepted: 07/24/2013] [Indexed: 12/31/2022]
Abstract
Effects of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) on the neuronal lineage marker expression, cell-cell interaction, caspase-3 mRNA transcription and reactive oxygen species production by N2a neuronal cells were assesses in 3-dimensional (3D) spheroid cultures, and the cytotoxicity were thoroughly compared with those of a conventional 2D monolayer-based toxicity assay. Increasing concentrations of PFOA or PFOS resulted in an increase in cell death. The half maximal inhibitory concentrations measured with spheroids were approximately one and a half times greater than the respective values for monolayer cells. Necrosis was prevalent in spheroids regardless of the dose, whereas the major injury mechanism in monolayers was dependent on compound concentration. Both PFOA and PFOS inhibited neuronal, astrocyte and oligodendrocyte marker gene expression by monolayers and spheroids grown under undifferentiated and all-trans-retinoic acid-induced differentiating conditions. In the presence of PFOA or PFOS, expression levels of E-cadherin and connexin-43 mRNAs were significantly downregulated, and spheroids were dissociated into single cell populations, indicating that the compounds affect the synthesis of E-cadherin and connexin-43 at the transcriptional level. Results from 3D cultures may provide an insight into potential inhibitory mode of action on gap junctional intercellular communication.
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Affiliation(s)
- Seong-Kyoon Choi
- Laboratory of Biochemistry and Cellular Engineering, Division of NanoBio Technology, Daegu Gyeongbuk Institute of Science and Technology, Daegu 711-873, South Korea
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Choi SK, Park JK, Lee KM, Lee SK, Jeon WB. Improved neural progenitor cell proliferation and differentiation on poly(lactide-co-glycolide) scaffolds coated with elastin-like polypeptide. J Biomed Mater Res B Appl Biomater 2013; 101:1329-39. [PMID: 23687069 DOI: 10.1002/jbm.b.32950] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 02/14/2013] [Accepted: 03/06/2013] [Indexed: 11/11/2022]
Abstract
Poly(lactide-co-glycolide) (PLGA) and elastin-like polypeptide (ELP) have been widely used as a biodegradable scaffold and thermoresponsive matrix, respectively. However, little attention has focused on the combinatorial use of these biomaterials for tissue engineering applications. An ELP matrix TGPG[VGRGD(VGVPG)6]20WPC (referred to as REP) contains multiple Arg-Gly-Asp motifs. This study fabricated porous PLGA scaffolds coated with various concentration of matrix via thermally induced phase transition to improve adhesion-mediated proliferation and differentiation of neural progenitor cells. Matrix-coated scaffolds were characterized by FTIR, SEM, and hematoxylin and eosin staining with respect to coating efficiency, porosity, and pore size and shape. On the matrix-coated scaffolds, cells grew as a single cell or associated each other to form a multicellular layer or cluster. In biological evaluations, cell adhesion and proliferation were significantly promoted in a matrix concentration-dependent manner. More importantly, in combination with retinoic acid, the differentiation of progenitor cells into neuronal and astroglial lineages was highly stimulated in the cells cultured on matrix-coated scaffolds than on untreated controls. Taken together, our results indicated that the REP matrix-functionalized PLGA scaffolds are suitable for improving neuronal cell functions, and thus applicable for neural tissue engineering.
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Affiliation(s)
- Seong-Kyoon Choi
- Laboratory of Biochemistry and Cellular Engineering, Division of NanoBio Technology, Daegu Gyeongbuk Institute of Science and Technology, Daegu, 711-873, South Korea
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Jeon WB. Application of elastin-mimetic recombinant proteins in chemotherapeutics delivery, cellular engineering, and regenerative medicine. Bioengineered 2013; 4:368-73. [PMID: 23475122 PMCID: PMC3937197 DOI: 10.4161/bioe.24158] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
With the remarkable increase in the fields of biomedical engineering and regenerative medicine, biomaterial design has become an indispensable approach for developing the biocompatible carriers for drug or gene cargo and extracellular matrix (ECM) for cell survival, proliferation and differentiation. Native ECM materials derived from animal tissues were believed to be the best choices for tissue engineering. However, possible pathogen contamination by cellular remnants from foreign animal tissues is an unavoidable issue that has limited the use of native ECM for human benefit. Some synthetic polymers have been used as alternative materials for manufacturing native ECM because of the biodegradability and ease of large-scale production of the polymers. However, the inherent polydispersity of the polymers causes batch-to-batch variation in polymer composition and possible cytotoxic interactions between chemical matrices and neighboring cells or tissues have not yet been fully resolved. Elastin-like proteins (ELPs) are genetically engineered biopolymers modeled after the naturally occurring tropoelastin and have emerged as promising materials for biomedical applications because they are biocompatible, non-immunogenic and biodegradable, and their composition, mechanical stiffness and even fate within the cell can be controlled at the gene level. This commentary highlights the recent progresses in the development of the ELP-based recombinant proteins that are being increasingly used for the delivery of chemotherapeutics and to provide a cell-friendly ECM environment.
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Affiliation(s)
- Won Bae Jeon
- Laboratory of Biochemistry and Cellular Engineering; Division of NanoBio Technology; Daegu Gyeongbuk Institute of Science and Technology; Daegu, South Korea
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