1
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Johnson D, Ridolfo M, Mueller R, Chermack M, Brockhouse J, Tadiwala J, Jain A, Bertram K, Garg K. Biosponge-Encased Placental Stem Cells for Volumetric Muscle Loss Repair. Adv Wound Care (New Rochelle) 2024. [PMID: 39171894 DOI: 10.1089/wound.2024.0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024] Open
Abstract
OBJECTIVE Volumetric muscle loss (VML) leads to permanent muscle mass and functional impairments. While mesenchymal stromal cells (MSCs) and their secreted factors can aid muscle regeneration, MSCs exhibit limited persistence in injured tissue post-transplantation. Human placenta-derived stem cells (hPDSCs), sharing surface markers with MSCs, demonstrate superior regenerative potential due to their fetal origin. Previously, a biosponge (BS) scaffold was shown to augment muscle regeneration post-VML. This study aims to co-apply BS therapy and hPDSCs to further enhance muscle recovery following VML. APPROACH A VML defect was created by removing ~20% of the tibialis anterior muscle mass in male Lewis rats. Injured muscles were either left untreated or treated with BS or BS-encapsulated hPDSCs cultured under normoxic or hypoxic conditions. On day 28 post-injury, peak isometric torque was measured, and the muscle was harvested for analysis. RESULTS BS encapsulated hPDSCs subjected to hypoxic preconditioning persisted in larger quantities and enhanced muscle mass at day 28 post-injury. BS encapsulated hPDSCs cultured under normoxic or hypoxic conditions increased small myofibers (<500 µm2) percentage, MyoD protein expression, and both pro- and anti-inflammatory macrophage marker expression. BS encapsulated hPDSCs also reduced fibrosis and BS remodeling rate. INNOVATION This study is the first to examine the therapeutic effects of hPDSCs in a rat VML model. A BS carrier and hypoxic preconditioning were investigated to mitigate low cell survival post-implantation. CONCLUSION hPDSCs augment the regenerative effect of BS. Combining hPDSCs and BS emerges as a promising strategy worthy of further investigation.
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Affiliation(s)
- David Johnson
- Saint Louis University, Saint Louis, Missouri, United States;
| | - Mia Ridolfo
- Saint Louis University, Saint Louis, Missouri, United States;
| | - Ryan Mueller
- Saint Louis University, Saint Louis, Missouri, United States;
| | - Megan Chermack
- Saint Louis University, Saint Louis, Missouri, United States;
| | | | | | - Avantika Jain
- Saint Louis University, Saint Louis, Missouri, United States;
| | - Kenneth Bertram
- Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States;
| | - Koyal Garg
- Saint Louis University, 3507 lindell blvd, Saint Louis, Missouri, United States, 63103-2097;
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2
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Velankar K, Liu W, Hartmeier PR, Veleke SR, Reddy GA, Clegg B, Gawalt ES, Fan Y, Meng WS. Fibril-Guided Three-Dimensional Assembly of Human Fibroblastic Reticular Cells. ACS APPLIED BIO MATERIALS 2024; 7:3953-3963. [PMID: 38805413 PMCID: PMC11190984 DOI: 10.1021/acsabm.4c00331] [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: 03/07/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 05/30/2024]
Abstract
Fibroblastic reticular cells (FRCs) are stromal cells (SCs) that can be isolated from lymph node (LN) biopsies. Studies have shown that these nonhematopoietic cells have the capacity to shape and regulate adaptive immunity and can become a form of personalized cell therapy. Successful translational efforts, however, require the cells to be formulated as injectable units, with their native architecture preserved. The intrinsic reticular organization of FRCs, however, is lost in the monolayer cultures. Organizing FRCs into three-dimensional (3D) clusters would recapitulate their structural and functional attributes. Herein, we report a scaffolding method based on the self-assembling peptide (SAP) EAKII biotinylated at the N-terminus (EAKbt). Cross-linking with avidin transformed the EAKbt fibrils into a dense network of coacervates. The combined forces of fibrillization and bioaffinity interactions in the cross-linked EAKbt likely drove the cells into a cohesive 3D reticula. This facile method of generating clustered FRCs (clFRCs) can be completed within 10 days. In vitro clFRCs attracted the infiltration of T cells and rendered an immunosuppressive milieu in the cocultures. These results demonstrate the potential of clFRCs as a method for stromal cell delivery.
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Affiliation(s)
- Ketki
Y. Velankar
- Graduate
School of Pharmaceutical Sciences, Duquesne
University, Pittsburgh Pennsylvania 15282, United States
| | - Wen Liu
- Allegheny
Health Network Cancer Institute, Allegheny Health Network, Pittsburgh Pennsylvania 15212, United States
| | - Paul R. Hartmeier
- Graduate
School of Pharmaceutical Sciences, Duquesne
University, Pittsburgh Pennsylvania 15282, United States
| | - Samuel R. Veleke
- Graduate
School of Pharmaceutical Sciences, Duquesne
University, Pittsburgh Pennsylvania 15282, United States
| | - Gayathri Aparnasai Reddy
- Graduate
School of Pharmaceutical Sciences, Duquesne
University, Pittsburgh Pennsylvania 15282, United States
| | - Benjamin Clegg
- Department
of Chemistry and Biochemistry, Duquesne
University, Pittsburgh, Pennsylvania 15282, United States
| | - Ellen S. Gawalt
- Department
of Chemistry and Biochemistry, Duquesne
University, Pittsburgh, Pennsylvania 15282, United States
- McGowan
Institute for Regenerative Medicine, University
of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Yong Fan
- Allegheny
Health Network Cancer Institute, Allegheny Health Network, Pittsburgh Pennsylvania 15212, United States
- Department
of Biomedical Engineering, Carnegie Mellon
University, Pittsburgh,Pennsylvania 15213, United States
| | - Wilson S. Meng
- Graduate
School of Pharmaceutical Sciences, Duquesne
University, Pittsburgh Pennsylvania 15282, United States
- McGowan
Institute for Regenerative Medicine, University
of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
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3
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Zhu D, Wei W, Zhang J, Zhao B, Li Q, Jin P. Mechanism of damage of HIF-1 signaling in chronic diabetic foot ulcers and its related therapeutic perspectives. Heliyon 2024; 10:e24656. [PMID: 38318060 PMCID: PMC10839564 DOI: 10.1016/j.heliyon.2024.e24656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/07/2024] Open
Abstract
Diabetic foot ulcer (DFU) is a chronic complication of diabetes. Wound healing in patients with DFU is generally very slow, with a high recurrence rate even after the ulcer healed. The DFU remains a major clinical challenge due to a lack of understanding of its pathogenesis. Given the significant impact of DFU on patient health and medical costs, enhancing our understanding of pathophysiological alterations and wound healing in DFU is critical. A growing body of research has shown that impaired activation of the HIF-1 pathway in diabetics, which weakens HIF-1 mediated responses to hypoxia and leads to down-regulation of its downstream target genes, leading to incurable diabetic foot ulcers. By analyzing and summarizing the literature in recent years, this review summarizes the mechanism of HIF-1 signaling pathway damage in the development of DFU, analyzes and compares the application of PHD inhibitors, VHL inhibitors, biomaterials and stem cell therapy in chronic wounds of diabetes, and proposes a new treatment scheme mediated by participation in the HIF-1 signaling pathway, which provides new ideas for the treatment of DFU.
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Affiliation(s)
- Dong Zhu
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Wuhan Wei
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jingyu Zhang
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Bingkun Zhao
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qiang Li
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Peisheng Jin
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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4
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Dasgupta S, Reddy KP, Datta P, Barui A. Vitamin D3-incorporated chitosan/collagen/fibrinogen scaffolds promote angiogenesis and endothelial transition via HIF-1/IGF-1/VEGF pathways in dental pulp stem cells. Int J Biol Macromol 2023; 253:127325. [PMID: 37820916 DOI: 10.1016/j.ijbiomac.2023.127325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/03/2023] [Accepted: 10/06/2023] [Indexed: 10/13/2023]
Abstract
Effective vascularization during wound healing remains a critical challenge in the regeneration of skin tissue. On the other hand, mesenchymal stem cell (MSC) to endothelial phenotype transition (MEnDoT) is a potential phenomenon grossly underexplored in vascularized skin tissue engineering. Vitamin D3 has a proven role in promoting MEnDoT. Hence, a D3-incorporated scaffold made with biocompatible materials such as chitosan, collagen and fibrinogen should be able to promote endothelial lineage transition in vitro for tissue engineering purposes. In this study, we developed vitamin D3 incorporated chitosan-collagen-fibrinogen (CCF-D3) scaffolds physically crosslinked under UV and conducted thorough physicochemical and biological assays on it compared to a control scaffold without vitamin D3. Our study for the first time reports the potential vascularization property of the CCF-D3 scaffold by inducing the transitions of dental pulp MSC to endothelial lineage via the HIF-1/IGF-1/VEGF pathways. MSC seeded on UV-exposed CCF-D3 scaffolds had higher cell viability and transitioned towards endothelial lineage was observed by elevated proliferative and endothelial-specific gene expressions and flow cytometric analysis of SCA-1+ antibody. The difference in VEGF-A and α-SMA expressions was also observed in the D3-CCF scaffold compared to the scaffolds without D3.
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Affiliation(s)
- Shalini Dasgupta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India
| | | | - Pallab Datta
- National Institute of Pharmaceutical Education and Research, Kolkata, India
| | - Ananya Barui
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India.
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5
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Lu Z, Singh G, Lesani P, Zreiqat H. Promise and Perspective of Nanomaterials in Antisenescence Tissue Engineering Applications. ACS Biomater Sci Eng 2022; 8:3133-3141. [PMID: 35771746 DOI: 10.1021/acsbiomaterials.1c01298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The tissue engineering approach for repair and regeneration has achieved significant progress over the past decades. However, challenges remain in developing strategies to solve the declined or impaired innate cell and tissue regeneration capacity that occurs with aging. Cellular senescence is a key mechanism underlying organismal aging and is responsible for the declined tissue regeneration capacity in the aging population. Therefore, to promote the diminished tissue regeneration ability in the aged population, it is critical to developing a feasible and promising strategy to target senescent cells. Recent advances in nanomaterials have revolutionized biomedical applications ranging from biosensing to bioimaging and targeted drug delivery. In this perspective, we review and discuss the nature and influences of cell-intrinsic and cell-extrinsic factors on reduced regenerative abilities through aging and how nanotechnology can be a therapeutic avenue to sense, rejuvenate, and eliminate senescent cells, thereby improving the tissue regeneration capacity in the aging population.
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Affiliation(s)
- ZuFu Lu
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
| | - Gurvinder Singh
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
| | - Pooria Lesani
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
| | - Hala Zreiqat
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
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6
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Henckes NAC, Chuang L, Bosak I, Carazzai R, Garcez T, Kuhl CP, de Oliveira FDS, Loureiro Dos Santos LA, Visioli F, Cirne-Lima EO. Tissue engineering application combining epoxidized natural rubber blend and mesenchymal stem cells in in vivo response. J Biomater Appl 2022; 37:698-711. [PMID: 35733325 DOI: 10.1177/08853282221110476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study aimed to investigate biocompatibility, integration, and tissue host response of the Poly (Lactic-co-Glycolic acid) (PLGA)/Poly (isoprene) (PI) epoxidized (PLGA/PIepox) innovative scaffold combined with adipose derived mesenchymal stem cells (ADSC). We implanted the scaffold subcutaneously on the back of 18 female rats and monitored them for up to 14 days. When compared to controls, PLGA/PIepox + ADSC demonstrated an earlier vascularization, a tendency of inflammation reduction, an adequate tissue integration, higher cell proliferation, and a tendency of expression of collagen decreasing. However, 14 days post-implantation we found similar levels of CD31, Ki67 and AE1/AE3 in PLGA/PIepox when compared to control groups. The interesting results, lead us to the assumption that PLGA/PIepox is able to provide an effective delivery system for ADSC on tissue host. This animal study assesses PLGA/PIepox + ADSC in in vivo tissue functionality and validation of use, serving as a proof of concept for future clinical translation as it presents an innovative and promising tissue engineering opportunity for the use in tissue reconstruction.
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Affiliation(s)
- Nicole Andréa Corbellini Henckes
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Ciências da Saúde: Ginecologia e Obstetrícia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Laura Chuang
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Isadora Bosak
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Rafael Carazzai
- Laboratório de Biomateriais e Cerâmicas Avançadas, Departamento de Materiais, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Tuane Garcez
- Unidade de Experimentação Animal - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Cristiana Palma Kuhl
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Ciências da Saúde: Ginecologia e Obstetrícia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda Dos Santos de Oliveira
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Luis Alberto Loureiro Dos Santos
- Laboratório de Biomateriais e Cerâmicas Avançadas, Departamento de Materiais, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda Visioli
- Unidade de Patologia Experimental - Centro de Pesquisa Experimental, 37895Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Odontologia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Elizabeth Obino Cirne-Lima
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Ciências da Saúde: Ginecologia e Obstetrícia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Departamento de Patologia Clínica Veterinária, Faculdade de Veterinária, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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7
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Ladeira BMF, Gomes MC, Custódio CA, Mano JF. High-Throughput Production of Microsponges from Platelet Lysate for Tissue Engineering Applications. Tissue Eng Part C Methods 2022; 28:325-334. [PMID: 35343236 DOI: 10.1089/ten.tec.2022.0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cell-based therapies require a large number of cells, as well as appropriate methods to deliver the cells to damaged tissue. Microcarriers provide an optimal platform for large-scale cell culture while also improving cell retention during cell delivery. However, this technology still presents significant challenges due to low-throughput fabrication methods and an inability of the microcarriers to recreate the properties of human tissue. This work proposes, for the first time, the use of methacryloyl platelet lysates (PLMA), a photocrosslinkable material derived from human platelet lysates, to produce porous microcarriers. Initially, high quantities of PLMA/alginate core-shell microcapsules are produced using coaxial electrospray. Subsequently, the microcapsules are collected, irradiated with ultraviolet light, washed, and freeze dried yielding PLMA microsponges. These microsponges are able to support the adhesion and proliferation of human adipose-derived stem cells, while also displaying potential in the assembly of autologous microtissues. Cell-laden microsponges were shown to self-organize into aggregates, suggesting possible applications in bottom-up tissue engineering applications. Impact Statement Microcarriers have increasingly been used as delivery platforms in cell therapy. Herein, the encapsulation of human-derived proteins in alginate microcapsules is proposed as a method to produce microcarriers from photopolymerizable materials. The capsules function as a template structure, which is then processed into spherical microparticles, which can be used in cell culture, cell delivery, and bottom-up assembly. As a proof of concept, this method was combined with lyophilization to process methacryloyl platelet lysates into injectable microsponges for cell delivery.
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Affiliation(s)
- Bruno M F Ladeira
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Maria C Gomes
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Catarina A Custódio
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - João F Mano
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
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8
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Zhao X, Li Q, Guo Z, Li Z. Constructing a cell microenvironment with biomaterial scaffolds for stem cell therapy. Stem Cell Res Ther 2021; 12:583. [PMID: 34809719 PMCID: PMC8607654 DOI: 10.1186/s13287-021-02650-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/03/2021] [Indexed: 01/08/2023] Open
Abstract
Stem cell therapy is widely recognized as a promising strategy for exerting therapeutic effects after injury in degenerative diseases. However, limitations such as low cell retention and survival rates after transplantation exist in clinical applications. In recent years, emerging biomaterials that provide a supportable cellular microenvironment for transplanted cells have optimized the therapeutic efficacy of stem cells in injured tissues or organs. Advances in the engineered microenvironment are revolutionizing our understanding of stem cell-based therapies by co-transplanting with synthetic and tissue-derived biomaterials, which offer a scaffold for stem cells and propose an unprecedented opportunity to further employ significant influences in tissue repair and regeneration.
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Affiliation(s)
- Xiaotong Zhao
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, Henan, China.,Department of Cardiology, Zhengzhou Seventh People's Hospital, Zhengzhou, China
| | - Qiong Li
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, Henan, China
| | - Zhikun Guo
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, Henan, China. .,Department of Cardiology, Zhengzhou Seventh People's Hospital, Zhengzhou, China.
| | - Zongjin Li
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, Henan, China. .,Nankai University School of Medicine, 94 Weijin Road, Tianjin, 300071, China.
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9
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Genovese P, Patel A, Ziemkiewicz N, Paoli A, Bruns J, Case N, Zustiak SP, Garg K. Co-delivery of fibrin-laminin hydrogel with mesenchymal stem cell spheroids supports skeletal muscle regeneration following trauma. J Tissue Eng Regen Med 2021; 15:1131-1143. [PMID: 34551191 DOI: 10.1002/term.3243] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/09/2021] [Accepted: 09/17/2021] [Indexed: 12/12/2022]
Abstract
Volumetric muscle loss (VML) is traumatic or surgical loss of skeletal muscle with resultant functional impairment. Skeletal muscle's innate capacity for regeneration is lost with VML due to a critical loss of stem cells, extracellular matrix, and neuromuscular junctions. Consequences of VML include permanent disability or delayed amputations of the affected limb. Currently, a successful clinical therapy has not been identified. Mesenchymal stem cells (MSCs) possess regenerative and immunomodulatory properties and their three-dimensional aggregation can further enhance therapeutic efficacy. In this study, MSC aggregation into spheroids was optimized in vitro based on cellular viability, spheroid size, and trophic factor secretion. The regenerative potential of the optimized MSC spheroid therapy was then investigated in a murine model of VML injury. Experimental groups included an untreated VML injury control, intramuscular injection of MSC spheroids, and MSC spheroids encapsulated in a fibrin-laminin hydrogel. Compared to the untreated VML group, the spheroid encapsulating hydrogel group enhanced myogenic marker (i.e., MyoD and myogenin) protein expression, improved muscle mass, increased presence of centrally nucleated myofibers as well as small fibers (<500 μm2 ), modulated pro- and anti-inflammatory macrophage marker expression (i.e., iNOS and Arginase), and increased the presence of CD146+ pericytes and CD31+ endothelial cells in the VML injured muscles. Future studies will evaluate the extent of functional recovery with the spheroid encapsulating hydrogel therapy.
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Affiliation(s)
- Peter Genovese
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
| | - Anjali Patel
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
| | - Natalia Ziemkiewicz
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
| | - Allison Paoli
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
| | - Joseph Bruns
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
| | - Natasha Case
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
| | - Silviya P Zustiak
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
| | - Koyal Garg
- Program of Biomedical Engineering, School of Engineering, Saint Louis University, St. Louis, Missouri, USA
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10
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Correa S, Grosskopf AK, Lopez Hernandez H, Chan D, Yu AC, Stapleton LM, Appel EA. Translational Applications of Hydrogels. Chem Rev 2021; 121:11385-11457. [PMID: 33938724 PMCID: PMC8461619 DOI: 10.1021/acs.chemrev.0c01177] [Citation(s) in RCA: 356] [Impact Index Per Article: 118.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Indexed: 12/17/2022]
Abstract
Advances in hydrogel technology have unlocked unique and valuable capabilities that are being applied to a diverse set of translational applications. Hydrogels perform functions relevant to a range of biomedical purposes-they can deliver drugs or cells, regenerate hard and soft tissues, adhere to wet tissues, prevent bleeding, provide contrast during imaging, protect tissues or organs during radiotherapy, and improve the biocompatibility of medical implants. These capabilities make hydrogels useful for many distinct and pressing diseases and medical conditions and even for less conventional areas such as environmental engineering. In this review, we cover the major capabilities of hydrogels, with a focus on the novel benefits of injectable hydrogels, and how they relate to translational applications in medicine and the environment. We pay close attention to how the development of contemporary hydrogels requires extensive interdisciplinary collaboration to accomplish highly specific and complex biological tasks that range from cancer immunotherapy to tissue engineering to vaccination. We complement our discussion of preclinical and clinical development of hydrogels with mechanical design considerations needed for scaling injectable hydrogel technologies for clinical application. We anticipate that readers will gain a more complete picture of the expansive possibilities for hydrogels to make practical and impactful differences across numerous fields and biomedical applications.
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Affiliation(s)
- Santiago Correa
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Abigail K. Grosskopf
- Chemical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Hector Lopez Hernandez
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Doreen Chan
- Chemistry, Stanford University, Stanford, California 94305, United States
| | - Anthony C. Yu
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | | | - Eric A. Appel
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
- Bioengineering, Stanford University, Stanford, California 94305, United States
- Pediatric
Endocrinology, Stanford University School
of Medicine, Stanford, California 94305, United States
- ChEM-H Institute, Stanford
University, Stanford, California 94305, United States
- Woods
Institute for the Environment, Stanford
University, Stanford, California 94305, United States
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11
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Photo-Polymerization Damage Protection by Hydrogen Sulfide Donors for 3D-Cell Culture Systems Optimization. Int J Mol Sci 2021; 22:ijms22116095. [PMID: 34198821 PMCID: PMC8201135 DOI: 10.3390/ijms22116095] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/26/2021] [Accepted: 05/31/2021] [Indexed: 01/04/2023] Open
Abstract
Photo-polymerized hydrogels are ideally suited for stem-cell based tissue regeneration and three dimensional (3D) bioprinting because they can be highly biocompatible, injectable, easy to use, and their mechanical and physical properties can be controlled. However, photo-polymerization involves the use of potentially toxic photo-initiators, exposure to ultraviolet light radiation, formation of free radicals that trigger the cross-linking reaction, and other events whose effects on cells are not yet fully understood. The purpose of this study was to examine the effects of hydrogen sulfide (H2S) in mitigating cellular toxicity of photo-polymerization caused to resident cells during the process of hydrogel formation. H2S, which is the latest discovered member of the gasotransmitter family of gaseous signalling molecules, has a number of established beneficial properties, including cell protection from oxidative damage both directly (by acting as a scavenger molecule) and indirectly (by inducing the expression of anti-oxidant proteins in the cell). Cells were exposed to slow release H2S treatment using pre-conditioning with glutathione-conjugated-garlic extract in order to mitigate toxicity during the photo-polymerization process of hydrogel formation. The protective effects of the H2S treatment were evaluated in both an enzymatic model and a 3D cell culture system using cell viability as a quantitative indicator. The protective effect of H2S treatment of cells is a promising approach to enhance cell survival in tissue engineering applications requiring photo-polymerized hydrogel scaffolds.
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12
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Designing topographically textured microparticles for induction and modulation of osteogenesis in mesenchymal stem cell engineering. Biomaterials 2020; 266:120450. [PMID: 33096376 DOI: 10.1016/j.biomaterials.2020.120450] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/03/2020] [Accepted: 10/10/2020] [Indexed: 12/26/2022]
Abstract
Mesenchymal stem cells are the focus of intense research in bone development and regeneration. The potential of microparticles as modulating moieties of osteogenic response by utilizing their architectural features is demonstrated herein. Topographically textured microparticles of varying microscale features are produced by exploiting phase-separation of a readily soluble sacrificial component from polylactic acid. The influence of varying topographical features on primary human mesenchymal stem cell attachment, proliferation and markers of osteogenesis is investigated. In the absence of osteoinductive supplements, cells cultured on textured microparticles exhibit notably increased expression of osteogenic markers relative to conventional smooth microparticles. They also exhibit varying morphological, attachment and proliferation responses. Significantly altered gene expression and metabolic profiles are observed, with varying histological characteristics in vivo. This study highlights how tailoring topographical design offers cell-instructive 3D microenvironments which allow manipulation of stem cell fate by eliciting the desired downstream response without use of exogenous osteoinductive factors.
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13
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Haugen HJ, Basu P, Sukul M, Mano JF, Reseland JE. Injectable Biomaterials for Dental Tissue Regeneration. Int J Mol Sci 2020; 21:E3442. [PMID: 32414077 PMCID: PMC7279163 DOI: 10.3390/ijms21103442] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 05/08/2020] [Indexed: 12/17/2022] Open
Abstract
Injectable biomaterials scaffolds play a pivotal role for dental tissue regeneration, as such materials are highly applicable in the dental field, particularly when compared to pre-formed scaffolds. The defects in the maxilla-oral area are normally small, confined and sometimes hard to access. This narrative review describes different types of biomaterials for dental tissue regeneration, and also discusses the potential use of nanofibers for dental tissues. Various studies suggest that tissue engineering approaches involving the use of injectable biomaterials have the potential of restoring not only dental tissue function but also their biological purposes.
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Affiliation(s)
- Håvard Jostein Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
| | - Poulami Basu
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
| | - Mousumi Sukul
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
| | - João F Mano
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Janne Elin Reseland
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
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14
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Sun M, Wang T, Pang J, Chen X, Liu Y. Hydroxybutyl Chitosan Centered Biocomposites for Potential Curative Applications: A Critical Review. Biomacromolecules 2020; 21:1351-1367. [DOI: 10.1021/acs.biomac.0c00071] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mengjie Sun
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
| | - Ting Wang
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
| | - Jianhui Pang
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
| | - Xiguang Chen
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
- Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, P.R. China
| | - Ya Liu
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
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15
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Scalzone A, Ferreira AM, Tonda-Turo C, Ciardelli G, Dalgarno K, Gentile P. The interplay between chondrocyte spheroids and mesenchymal stem cells boosts cartilage regeneration within a 3D natural-based hydrogel. Sci Rep 2019; 9:14630. [PMID: 31601910 PMCID: PMC6787336 DOI: 10.1038/s41598-019-51070-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 09/25/2019] [Indexed: 12/30/2022] Open
Abstract
Articular cartilage (AC) lacks the ability to self-repair and cell-based approaches, primarily based on using chondrocytes and mesenchymal stem cells (MSCs), are emerging as effective technology to restore cartilage functionality, because cells synergic functionality may support the maintenance of chondrogenic phenotype and promote extracellular matrix regeneration. This work aims to develop a more physiologically representative co-culture system to investigate the influence of MSCs on the activity of chondrocytes. A thermo-sensitive chitosan-based hydrogel, ionically crosslinked with β-glycerophosphate, is optimised to obtain sol/gel transition at physiological conditions within 5 minutes, high porosity with pores diameter <30 µm, and in vitro mechanical integrity with compressive and equilibrium Young's moduli of 37 kPa and 17 kPa, respectively. Live/dead staining showed that after 1 and 3 days in culture, the encapsulated MSCs into the hydrogels are viable and characterised by round-like morphology. Furthermore chondrocyte spheroids, seeded on top of gels that contained either MSCs or no cells, show that the encapsulated MSCs stimulate chondrocyte activity within a gel co-culture, both in terms of maintaining the coherence of chondrocyte spheroids, leading to a larger quantity of CD44 (by immunofluorescence) and a higher production of collagen and glycosaminoglycans (by histology) compared with the mono-culture.
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Affiliation(s)
- Annachiara Scalzone
- School of Engineering, Newcastle University, Claremont Road, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Ana M Ferreira
- School of Engineering, Newcastle University, Claremont Road, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Chiara Tonda-Turo
- Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino Corso Duca degli Abruzzi 29, Turin, 10129, Italy
| | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino Corso Duca degli Abruzzi 29, Turin, 10129, Italy
| | - Kenny Dalgarno
- School of Engineering, Newcastle University, Claremont Road, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Piergiorgio Gentile
- School of Engineering, Newcastle University, Claremont Road, Newcastle upon Tyne, NE1 7RU, United Kingdom.
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16
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Tatic N, Rose FRAJ, des Rieux A, White LJ. Stem cells from the dental apical papilla in extracellular matrix hydrogels mitigate inflammation of microglial cells. Sci Rep 2019; 9:14015. [PMID: 31570730 PMCID: PMC6768850 DOI: 10.1038/s41598-019-50367-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 09/06/2019] [Indexed: 12/15/2022] Open
Abstract
After spinal cord injury (SCI) chronic inflammation hampers regeneration. Influencing the local microenvironment after SCI may provide a strategy to modulate inflammation and the immune response. The objectives of this work were to determine whether bone or spinal cord derived ECM hydrogels can deliver human mesenchymal stem cells from the apical papilla (SCAP) to reduce local inflammation and provide a regenerative microenvironment. Bone hydrogels (8 and 10 mg/ml, B8 and B10) and spinal cord hydrogels (8 mg/ml, S8) supplemented with fibrin possessed a gelation rate and a storage modulus compatible with spinal cord implantation. S8 and B8 impact on the expression of anti and pro-inflammatory cytokines (Arg1, Nos2, Tnf) in LPS treated microglial cells were assessed using solubilised and solid hydrogel forms. S8 significantly reduced the Nos2/Arg1 ratio and solubilised B8 significantly reduced Tnf and increased Arg1 whereas solid S8 and B8 did not impact inflammation in microglial cells. SCAP incorporation within ECM hydrogels did not impact upon SCAP immunoregulatory properties, with significant downregulation of Nos2/Arg1 ratio observed for all SCAP embedded hydrogels. Tnf expression was reduced with SCAP embedded in B8, reflecting the gene expression observed with the innate hydrogel. Thus, ECM hydrogels are suitable vehicles to deliver SCAP due to their physical properties, preservation of SCAP viability and immunomodulatory capacity.
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Affiliation(s)
- Natalija Tatic
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
- Université catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Brussels, 1200, Belgium
| | - Felicity R A J Rose
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - Anne des Rieux
- Université catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Brussels, 1200, Belgium
| | - Lisa J White
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom.
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17
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Hasturk O, Kaplan DL. Cell armor for protection against environmental stress: Advances, challenges and applications in micro- and nanoencapsulation of mammalian cells. Acta Biomater 2019; 95:3-31. [PMID: 30481608 PMCID: PMC6534491 DOI: 10.1016/j.actbio.2018.11.040] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/19/2018] [Accepted: 11/23/2018] [Indexed: 12/11/2022]
Abstract
Unlike unicellular organisms and plant cells surrounded with a cell wall, naked plasma membranes of mammalian cells make them more susceptible to environmental stresses encountered during in vitro biofabrication and in vivo cell therapy applications. Recent advances in micro- and nanoencapsulation of single mammalian cells provide an effective strategy to isolate cells from their surroundings and protect them against harsh environmental conditions. Microemulsification and droplet-based microfluidics have enabled researchers to encapsulate single cells within a variety of microscale hydrogel materials with a range of biochemical and mechanical properties and functionalities including enhanced cell-matrix interactions or on-demand degradation. In addition to microcapsules, nanocoatings of various organic and inorganic substances on mammalian cells have allowed for the formation of protective shells. A wide range of synthetic and natural polymers, minerals and supramolecular metal-organic complexes have been deposited as nanolayers on the cells via electrostatic interactions, receptor-ligand binding, non-specific interactions, and in situ polymerization/crosslinking. Here, current strategies in encapsulation of single mammalian cells along with challenges and advances are reviewed. Protection of encapsulated stem cells, fibroblasts, red and white blood cells and cancer cells against harsh in vitro and in vivo conditions including anoikis, UV radiation, physical forces, proteolytic enzymes and immune clearance are discussed. STATEMENT OF SIGNIFICANCE: The mechanical fragility of the plasma membrane and susceptibility to extracellular biochemical factors due to the lack of a physical barrier like a tough cell wall or exoskeleton make mammalian cells extra sensitive to harsh environmental conditions. This sensitively, in turn, limits the ex vivo storage, handling and manipulation of mammalian cells, as well as their in vivo applications. Environmental stresses such as exposure to UV, reactive chemicals and mechanical stress during biofabrication processes like 3D bioprinting can often compromise cell viability and function. Micro- and nanoencapsulation of single mammalian cells in protective shells have emerged as promising approaches to isolate cells from their surroundings and enhance resistance against perturbations in conditions during regenerative medicine and tissue engineering applications. In this review, the current state of art of single cell encapsulation strategies and the challenges associated with these technologies are discussed in detail. This is followed by the review of the protection provided by cell armor against a range of harsh in vitro and in vivo conditions.
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Affiliation(s)
- Onur Hasturk
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA.
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18
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Talovic M, Patel K, Schwartz M, Madsen J, Garg K. Decellularized extracellular matrix gelloids support mesenchymal stem cell growth and function in vitro. J Tissue Eng Regen Med 2019; 13:1830-1842. [PMID: 31306568 DOI: 10.1002/term.2933] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 06/10/2019] [Accepted: 07/03/2019] [Indexed: 12/15/2022]
Abstract
Volumetric muscle loss (VML) injuries are irrecoverable due to a significant loss of regenerative elements, persistent inflammation, extensive fibrosis, and functional impairment. When used in isolation, previous stem cell and biomaterial-based therapies have failed to regenerate skeletal muscle at clinically relevant levels. The extracellular matrix (ECM) microenvironment is crucial for the viability, stemness, and differentiation of stem cells. Decellularized-ECM (D-ECM) scaffolds are at the forefront of ongoing research to develop a viable therapy for VML. Due to the retention of key ECM components, D-ECM scaffolds provide an excellent substrate for the adhesion and migration of several cell types. Mesenchymal stem cells (MSCs) possess regenerative and immunomodulatory properties and are currently under investigation in clinical trials for a wide range of medical conditions. However, a major limitation to the use of MSCs in clinical applications is their poor viability at the site of transplantation. In this study, we have fabricated spherical scaffolds composed of gelatin and skeletal muscle D-ECM for the adhesion and delivery of MSCs to the site of VML injury. These spherical scaffolds termed "gelloids" supported MSC survival, expansion, trophic factor secretion, immunomodulation, and myogenic protein expression in vitro. Future studies would determine the therapeutic efficacy of this approach in a murine model of VML injury.
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Affiliation(s)
- Muhamed Talovic
- Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, MO
| | - Krishna Patel
- Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, MO
| | - Mark Schwartz
- Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, MO
| | - Josh Madsen
- Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, MO
| | - Koyal Garg
- Parks College of Engineering, Aviation, and Technology, Saint Louis University, St. Louis, MO
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19
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Brovold M, Almeida JI, Pla-Palacín I, Sainz-Arnal P, Sánchez-Romero N, Rivas JJ, Almeida H, Dachary PR, Serrano-Aulló T, Soker S, Baptista PM. Naturally-Derived Biomaterials for Tissue Engineering Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1077:421-449. [PMID: 30357702 PMCID: PMC7526297 DOI: 10.1007/978-981-13-0947-2_23] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Naturally-derived biomaterials have been used for decades in multiple regenerative medicine applications. From the simplest cell microcarriers made of collagen or alginate, to highly complex decellularized whole-organ scaffolds, these biomaterials represent a class of substances that is usually first in choice at the time of electing a functional and useful biomaterial. Hence, in this chapter we describe the several naturally-derived biomaterials used in tissue engineering applications and their classification, based on composition. We will also describe some of the present uses of the generated tissues like drug discovery, developmental biology, bioprinting and transplantation.
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Affiliation(s)
- Matthew Brovold
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, USA
| | - Joana I Almeida
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Iris Pla-Palacín
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Pilar Sainz-Arnal
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
- Aragon Health Sciences Institute (IACS), Zaragoza, Spain
| | | | - Jesus J Rivas
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Helen Almeida
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Pablo Royo Dachary
- Instituto de Investigación Sanitária de Aragón (IIS Aragón), Zaragoza, Spain
- Liver Transplant Unit, Gastroenterology Department, Lozano Blesa University Hospital, Zaragoza, Spain
| | - Trinidad Serrano-Aulló
- Instituto de Investigación Sanitária de Aragón (IIS Aragón), Zaragoza, Spain
- Liver Transplant Unit, Gastroenterology Department, Lozano Blesa University Hospital, Zaragoza, Spain
| | - Shay Soker
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, USA.
| | - Pedro M Baptista
- Instituto de Investigación Sanitária de Aragón (IIS Aragón), Zaragoza, Spain.
- Center for Biomedical Research Network Liver and Digestive Diseases (CIBERehd), Zaragoza, Spain.
- Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain.
- Biomedical and Aerospace Engineering Department, Universidad Carlos III de Madrid, Madrid, Spain.
- Fundación ARAID, Zaragoza, Spain.
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20
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Abstract
Stem cell therapy is a promising alternative approach to the treatment of a number of incurable degenerative diseases. However, low cell retention and survival after transplantation limit the therapeutic efficacy of stem cells for clinical translational applications. The utilization of biomaterials has been progressively successful in controlling the fate of transplanted cells by imitating the cellular microenvironment for optimal tissue repair and regeneration. This review mainly focuses on the engineered microenvironments with synthetic biomaterials in modification of stem cell behaviors. Moreover, the possible advancements in translational therapy by using biomaterials with stem cells are prospected and the challenges of the current restriction in clinical applications are highlighted.
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21
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Tang JD, Mura C, Lampe KJ. Stimuli-Responsive, Pentapeptide, Nanofiber Hydrogel for Tissue Engineering. J Am Chem Soc 2019; 141:4886-4899. [PMID: 30830776 DOI: 10.1021/jacs.8b13363] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Short peptides are uniquely versatile building blocks for self-assembly. Supramolecular peptide assemblies can be used to construct functional hydrogel biomaterials-an attractive approach for neural tissue engineering. Here, we report a new class of short, five-residue peptides that form hydrogels with nanofiber structures. Using rheology and spectroscopy, we describe how sequence variations, pH, and peptide concentration alter the mechanical properties of our pentapeptide hydrogels. We find that this class of seven unmodified peptides forms robust hydrogels from 0.2-20 kPa at low weight percent (less than 3 wt %) in cell culture media and undergoes shear-thinning and rapid self-healing. The peptides self-assemble into long fibrils with sequence-dependent fibrillar morphologies. These fibrils exhibit a unique twisted ribbon shape, as visualized by transmission electron microscopy (TEM) and Cryo-EM imaging, with diameters in the low tens of nanometers and periodicities similar to amyloid fibrils. Experimental gelation behavior corroborates our molecular dynamics simulations, which demonstrate peptide assembly behavior, an increase in β-sheet content, and patterns of variation in solvent accessibility. Our rapidly assembling pentapeptides for injectable delivery (RAPID) hydrogels are syringe-injectable and support cytocompatible encapsulation of oligodendrocyte progenitor cells (OPCs), as well as their proliferation and three-dimensional process extension. Furthermore, RAPID gels protect OPCs from mechanical membrane disruption and acute loss of viability when ejected from a syringe needle, highlighting the protective capability of the hydrogel as potential cell carriers for transplantation therapies. The tunable mechanical and structural properties of these supramolecular assemblies are shown to be permissive to cell expansion and remodeling, making this hydrogel system suitable as an injectable material for cell delivery and tissue engineering applications.
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22
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Chew S, Zeng Y, Khoo D, Hong Yu MY, Ahmed S, Chiam KH. Enrichment and Identification of Neural Stem Cells in Neurospheres Using Rigidity-Tunable Gels. Tissue Eng Part A 2019; 25:427-436. [DOI: 10.1089/ten.tea.2018.0221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Sweelin Chew
- Institute of Medical Biology, A*STAR, Singapore, Singapore
| | - Yukai Zeng
- Bioinformatics Institute, A*STAR, Singapore, Singapore
| | - David Khoo
- Bioinformatics Institute, A*STAR, Singapore, Singapore
| | | | - Sohail Ahmed
- Institute of Medical Biology, A*STAR, Singapore, Singapore
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23
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Przekora A. The summary of the most important cell-biomaterial interactions that need to be considered during in vitro biocompatibility testing of bone scaffolds for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 97:1036-1051. [PMID: 30678895 DOI: 10.1016/j.msec.2019.01.061] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 01/13/2019] [Accepted: 01/14/2019] [Indexed: 12/17/2022]
Abstract
Tissue engineered products (TEPs), which mean biomaterials containing either cells or growth factors or both cells and growth factors, may be used as an alternative to the autografts taken directly from the bone of the patients. Nevertheless, the use of TEPs needs much more understanding of biointeractions between biomaterials and eukaryotic cells. Despite the possibility of the use of in vitro cellular models for initial evaluation of the host response to the implanted biomaterial, it is observed that most researchers use cell cultures only for the evaluation of cytotoxicity and cell proliferation on the biomaterial surface, and then they proceed to animal models and in vivo testing of bone implants without fully utilizing the scientific potential of in vitro models. In this review, the most important biointeractions between eukaryotic cells and biomaterials were discussed, indicating molecular mechanisms of cell adhesion, proliferation, and biomaterial-induced activation of immune cells. The article also describes types of cellular models which are commonly used for biomaterial testing and highlights the possibilities and drawbacks of in vitro tests for biocompatibility evaluation of novel scaffolds. Finally, the review summarizes recent findings concerning the use of adult mesenchymal stem cells for TEP generation and compares the potential of bone marrow- and adipose tissue-derived stem cells in regenerative medicine applications.
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Affiliation(s)
- Agata Przekora
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland.
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24
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Ji W, Álvarez Z, Edelbrock AN, Sato K, Stupp SI. Bioactive Nanofibers Induce Neural Transdifferentiation of Human Bone Marrow Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41046-41055. [PMID: 30475573 DOI: 10.1021/acsami.8b13653] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The combination of biomaterials with stem cells is a promising therapeutic strategy to repair traumatic injuries in the central nervous system, and human bone marrow mesenchymal stem cells (BMSCs) offer a clinically translatable option among other possible sources of stem cells. We report here on the use of a supramolecular bioactive material based on a peptide amphiphile (PA), displaying a laminin-mimetic IKVAV sequence to drive neural transdifferentiation of human BMSCs. The IKVAV-PA self-assembles into supramolecular nanofibers that induce neuroectodermal lineage commitment after 1 week, as evidenced by the upregulation of the neural progenitor gene nestin ( NES) and glial fibrillary acidic protein ( GFAP). After 2 weeks, the bioactive IKVAV-PA nanofibers induce significantly higher expression of neuronal markers β-III tubulin (TUJ-1), microtubule-associated protein-2 (MAP-2), and neuronal nuclei (NEUN), as well as the extracellular matrix laminin (LMN). Furthermore, the human BMSCs exposed to the biomaterial reveal a polarized cytoskeletal architecture and a decrease in cellular size, resembling neuron-like cells. We conclude that the investigated supramolecular biomaterial opens the opportunity to transdifferentiate adult human BMSCs into neuronal lineage.
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Affiliation(s)
- Wei Ji
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration , KU Leuven , Leuven 3000 , Belgium
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25
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Lopez Hernandez H, Grosskopf AK, Stapleton LM, Agmon G, Appel EA. Non‐Newtonian Polymer–Nanoparticle Hydrogels Enhance Cell Viability during Injection. Macromol Biosci 2018; 19:e1800275. [DOI: 10.1002/mabi.201800275] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/28/2018] [Indexed: 01/13/2023]
Affiliation(s)
- Hector Lopez Hernandez
- Department of Materials Science & Engineering Stanford University Stanford 94305 CA United States
| | - Abigail K. Grosskopf
- Department of Chemical Engineering Stanford University Stanford 94305 CA United States
| | - Lyndsay M. Stapleton
- Department of Bioengineering Stanford University Stanford 94305 CA United States
| | - Gillie Agmon
- Department of Bioengineering Stanford University Stanford 94305 CA United States
| | - Eric A. Appel
- Department of Materials Science & Engineering Department of Bioengineering Stanford University Stanford 94305 CA United States
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26
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