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Soleymani H, Ghorbani M, Sedghi M, Allahverdi A, Naderi-Manesh H. Microfluidics single-cell encapsulation reveals that poly-l-lysine-mediated stem cell adhesion to alginate microgels is crucial for cell-cell crosstalk and its self-renewal. Int J Biol Macromol 2024; 274:133418. [PMID: 38936577 DOI: 10.1016/j.ijbiomac.2024.133418] [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: 11/12/2023] [Revised: 04/08/2024] [Accepted: 06/23/2024] [Indexed: 06/29/2024]
Abstract
Microfluidic cell encapsulation has provided a platform for studying the behavior of individual cells and has become a turning point in single-cell analysis during the last decade. The engineered microenvironment, along with protecting the immune response, has led to increasingly presenting the results of practical and pre-clinical studies with the goals of disease treatment, tissue engineering, intelligent control of stem cell differentiation, and regenerative medicine. However, the significance of cell-substrate interaction versus cell-cell communications in the microgel is still unclear. In this study, monodisperse alginate microgels were generated using a flow-focusing microfluidic device to determine how the cell microenvironment can control human bone marrow-derived mesenchymal stem cells (hBMSCs) viability, proliferation, and biomechanical features in single-cell droplets versus multi-cell droplets. Collected results show insufficient cell proliferation (234 % and 329 %) in both single- and multi-cell alginate microgels. Alginate hydrogels supplemented with poly-l-lysine (PLL) showed a better proliferation rate (514 % and 780 %) in a comparison of free alginate hydrogels. Cell stiffness data illustrate that hBMSCs cultured in alginate hydrogels have higher membrane flexibility and migration potency (Young's modulus equal to 1.06 kPa), whereas PLL introduces more binding sites for cell attachment and causes lower flexibility and migration potency (Young's modulus equal to 1.83 kPa). Considering that cell adhesion is the most important parameter in tissue engineering, in which cells do not run away from a 3D substrate, PLL enhances cell stiffness and guarantees cell attachments. In conclusion, cell attachment to PLL-mediated alginate hydrogels is crucial for cell viability and proliferation. It suggests that cell-cell signaling is good enough for stem cell viability, but cell-PLL attachment alongside cell-cell signaling is crucial for stem cell proliferation and self-renewal.
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Affiliation(s)
- Hossein Soleymani
- Biophysics Department, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran.
| | - Mohammad Ghorbani
- Faculty of Natural Sciences, University of Tabriz, 51666-16471 Tabriz, Iran
| | - Mosslim Sedghi
- Biophysics Department, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran
| | - Abdollah Allahverdi
- Biophysics Department, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran.
| | - Hossein Naderi-Manesh
- Biophysics Department, Faculty of Biological Sciences, Tarbiat Modares University, 14115-154 Tehran, Iran; Department of Nanobiotechnology, Faculty of Biological Science, Tarbiat Modares University, 14115-154 Tehran, Iran.
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2
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Marquis M, Zykwinska A, Novales B, Leroux I, Schleder C, Pichon J, Cuenot S, Rouger K. Human muscle stem cell responses to mechanical stress into tunable 3D alginate matrices. Int J Biol Macromol 2024; 266:130823. [PMID: 38492703 DOI: 10.1016/j.ijbiomac.2024.130823] [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: 01/08/2024] [Revised: 02/20/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Preclinical data acquired for human muscle stem (hMuStem) cells indicate their great repair capacity in the context of muscle injury. However, their clinical potential is limited by their moderate ability to survive after transplantation. To overcome these limitations, their encapsulation within protective environment would be beneficial. In this study, tunable calcium-alginate hydrogels obtained through molding method using external or internal gelation were investigated as a new strategy for hMuStem cell encapsulation. The mechanical properties of these hydrogels were characterized in their fully hydrated state by compression experiments using Atomic Force Microscopy. Measured elastic moduli strongly depended on the gelation mode and calcium/alginate concentrations. Values ranged from 1 to 12.5 kPa and 3.9 to 25 kPa were obtained for hydrogels prepared following internal and external gelation, respectively. Also, differences in mechanical properties of hydrogels resulted from their internal organization, with an isotropic structure for internal gelation, while external mode led to anisotropic one. It was further shown that viability, morphological and myogenic differentiation characteristics of hMuStem cells incorporated within alginate hydrogels were preserved after their release. These results highlight that hMuStem cells encapsulated in calcium-alginate hydrogels maintain their functionality, thus allowing to develop muscle regeneration protocols to improve their therapeutic efficacy.
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Affiliation(s)
- Mélanie Marquis
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France.
| | - Agata Zykwinska
- Ifremer, MASAE, Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Bruno Novales
- INRAE, BIA, Biopolymères Interactions Assemblages, 44316 Nantes, France
| | - Isabelle Leroux
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
| | - Cindy Schleder
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
| | - Julien Pichon
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
| | - Stéphane Cuenot
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, 44322 Nantes cedex 3, France
| | - Karl Rouger
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
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3
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Cheng HY, Anggelia MR, Liu SC, Lin CF, Lin CH. Enhancing Immunomodulatory Function of Mesenchymal Stromal Cells by Hydrogel Encapsulation. Cells 2024; 13:210. [PMID: 38334602 PMCID: PMC10854565 DOI: 10.3390/cells13030210] [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: 12/04/2023] [Revised: 01/10/2024] [Accepted: 01/18/2024] [Indexed: 02/10/2024] Open
Abstract
Mesenchymal stromal cells (MSCs) showcase remarkable immunoregulatory capabilities in vitro, positioning them as promising candidates for cellular therapeutics. However, the process of administering MSCs and the dynamic in vivo environment may impact the cell-cell and cell-matrix interactions of MSCs, consequently influencing their survival, engraftment, and their immunomodulatory efficacy. Addressing these concerns, hydrogel encapsulation emerges as a promising solution to enhance the therapeutic effectiveness of MSCs in vivo. Hydrogel, a highly flexible crosslinked hydrophilic polymer with a substantial water content, serves as a versatile platform for MSC encapsulation. Demonstrating improved engraftment and heightened immunomodulatory functions in vivo, MSCs encapsulated by hydrogel are at the forefront of advancing therapeutic outcomes. This review delves into current advancements in the field, with a focus on tuning various hydrogel parameters to elucidate mechanistic insights and elevate functional outcomes. Explored parameters encompass hydrogel composition, involving monomer type, functional modification, and co-encapsulation, along with biomechanical and physical properties like stiffness, viscoelasticity, topology, and porosity. The impact of these parameters on MSC behaviors and immunomodulatory functions is examined. Additionally, we discuss potential future research directions, aiming to kindle sustained interest in the exploration of hydrogel-encapsulated MSCs in the realm of immunomodulation.
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Affiliation(s)
- Hui-Yun Cheng
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.R.A.)
| | - Madonna Rica Anggelia
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.R.A.)
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Shiao-Chin Liu
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.R.A.)
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Chih-Fan Lin
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.R.A.)
| | - Cheng-Hung Lin
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.R.A.)
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- School of Medicine, Chang Gung University, Taoyuan 333, Taiwan
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Zhang A, Cheng Z, Chen Y, Shi P, Gan W, Zhang Y. Emerging tissue engineering strategies for annulus fibrosus therapy. Acta Biomater 2023:S1742-7061(23)00337-9. [PMID: 37330029 DOI: 10.1016/j.actbio.2023.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/31/2023] [Accepted: 06/12/2023] [Indexed: 06/19/2023]
Abstract
Low back pain is a major public health concern experienced by 80% of the world's population during their lifetime, which is closely associated with intervertebral disc (IVD) herniation. IVD herniation manifests as the nucleus pulposus (NP) protruding beyond the boundaries of the intervertebral disc due to disruption of the annulus fibrosus (AF). With a deepening understanding of the importance of the AF structure in the pathogenesis of intervertebral disc degeneration, numerous advanced therapeutic strategies for AF based on tissue engineering, cellular regeneration, and gene therapy have emerged. However, there is still no consensus concerning the optimal approach for AF regeneration. In this review, we summarized strategies in the field of AF repair and highlighted ideal cell types and pro-differentiation targeting approaches for AF repair, and discussed the prospects and difficulties of implant systems combining cells and biomaterials to guide future research directions. STATEMENT OF SIGNIFICANCE: Low back pain is a major public health concern experienced by 80% of the world's population during their lifetime, which is closely associated with intervertebral disc (IVD) herniation. However, there is still no consensus concerning the optimal approach for annulus fibrosus (AF) regeneration. In this review, we summarized strategies in the field of AF repair and highlighted ideal cell types and pro-differentiation targeting approaches for AF repair, and discussed the prospects and difficulties of implant systems combining cells and biomaterials to guide future research directions.
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Affiliation(s)
- Anran Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhangrong Cheng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuhang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Pengzhi Shi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Weikang Gan
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yukun Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Nativel F, Smith A, Boulestreau J, Lépine C, Baron J, Marquis M, Vignes C, Le Guennec Y, Veziers J, Lesoeur J, Loll F, Halgand B, Renard D, Abadie J, Legoff B, Blanchard F, Gauthier O, Vinatier C, Rieux AD, Guicheux J, Le Visage C. Micromolding-based encapsulation of mesenchymal stromal cells in alginate for intraarticular injection in osteoarthritis. Mater Today Bio 2023; 19:100581. [PMID: 36896417 PMCID: PMC9988569 DOI: 10.1016/j.mtbio.2023.100581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/27/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
Osteoarthritis (OA) is an inflammatory joint disease that affects cartilage, subchondral bone, and joint tissues. Undifferentiated Mesenchymal Stromal Cells are a promising therapeutic option for OA due to their ability to release anti-inflammatory, immuno-modulatory, and pro-regenerative factors. They can be embedded in hydrogels to prevent their tissue engraftment and subsequent differentiation. In this study, human adipose stromal cells are successfully encapsulated in alginate microgels via a micromolding method. Microencapsulated cells retain their in vitro metabolic activity and bioactivity and can sense and respond to inflammatory stimuli, including synovial fluids from OA patients. After intra-articular injection in a rabbit model of post-traumatic OA, a single dose of microencapsulated human cells exhibit properties matching those of non-encapsulated cells. At 6 and 12 weeks post-injection, we evidenced a tendency toward a decreased OA severity, an increased expression of aggrecan, and a reduced expression of aggrecanase-generated catabolic neoepitope. Thus, these findings establish the feasibility, safety, and efficacy of injecting cells encapsulated in microgels, opening the door to a long-term follow-up in canine OA patients.
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Affiliation(s)
- Fabien Nativel
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Audrey Smith
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France.,UCLouvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, 1200, Bruxelles, Belgium
| | - Jeremy Boulestreau
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Charles Lépine
- Nantes Université, CHU Nantes, Department of Pathology, F-44000 Nantes, France
| | - Julie Baron
- Nantes Université, CHU Nantes, Department of Pathology, F-44000 Nantes, France
| | - Melanie Marquis
- UR1268 BIA (Biopolymères Interactions Assemblages), INRAE, F-44300 Nantes, France
| | - Caroline Vignes
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Yoan Le Guennec
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Joelle Veziers
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Julie Lesoeur
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - François Loll
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Boris Halgand
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Denis Renard
- UR1268 BIA (Biopolymères Interactions Assemblages), INRAE, F-44300 Nantes, France
| | - Jerome Abadie
- LabONIRIS, ONIRIS (Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering), F-44300 Nantes, France
| | - Benoit Legoff
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Frederic Blanchard
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Olivier Gauthier
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France.,ONIRIS Nantes-Atlantic College of Veterinary Medicine, Centre de Recherche et D'investigation Préclinique (CRIP), F-44300 Nantes, France
| | - Claire Vinatier
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Anne des Rieux
- UCLouvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, 1200, Bruxelles, Belgium
| | - Jerome Guicheux
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
| | - Catherine Le Visage
- Nantes Université, ONIRIS, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France
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6
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Porous composite hydrogels with improved MSC survival for robust epithelial sealing around implants and M2 macrophage polarization. Acta Biomater 2023; 157:108-123. [PMID: 36435441 DOI: 10.1016/j.actbio.2022.11.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022]
Abstract
The application of mesenchymal stem cell (MSC)-based therapy is expected to make a significant contribution to the improvement of epithelial sealing around implants. However, there is currently no optimal MSC delivery biomaterial for clinical application in peri-implant epithelium (PIE) integration. In this study, we show that injectable photo-cross-linkable porous gelatin methacryloyl (GelMA)/silk fibroin glycidyl methacrylate (SilMA) hydrogels encapsulating gingival tissue-derived MSCs (GMSCs) are a simple and practical approach for re-epithelization applications. The hydrogels played a prominent role in supporting the proliferation, survival, and spread of GMSCs. Moreover, it was found that GMSCs-laden Porous GelMA/SilMA hydrogels could significantly upregulate the hemidesmosomes (HDs)-related genes and proteins expression and promote M2 polarization while inhibiting M1 polarization in vitro. Based on a rat model of early implant placement, application of the MSC-loaded hydrogels could enhance the protein expression of LAMA3 and BP180 (COL17A1) at the implant-PIE interface and reduce horseradish peroxidase (HRP) penetration between the implants and PIE. Noticeably, hydrogel-based MSC therapy contributed to augmenting M2 macrophage infiltration at two time points in the gingival connective tissue around implants. These findings demonstrated that GMSCs-laden Porous GelMA/SilMA hydrogels could facilitate epithelial sealing around implants and M2-polarized macrophages and may be a novel and facile therapeutic strategy for implant-PIE integration. STATEMENT OF SIGNIFICANCE: In the case of poor integration between the implant and gingival epithelium, peri-implantitis can develop, which is one of the main causes of implant failure. While stem cell therapy has tremendous potential for addressing this issue, poor cell survival and engraftment compromise the effectiveness of the therapy. Due to the excellent modifiable and tunable properties of gelatin and silk fibroin, injectable photo-cross-linkable porous hydrogels were developed using gelatin methacryloyl (GelMA) and silk fibroin glycidyl methacrylate (SilMA) as delivery vehicles for gingiva-derived MSCs (GMSCs). Porous GelMA/SilMA not only enhanced the proliferation and viability of GMSCs but also promoted their immunomodulatory capability for favorable epithelial sealing around implants. Overall, GMSCs-seeded porous hydrogels could be promising strategies for re-epithelization treatment.
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Injectable Hydrogel Membrane for Guided Bone Regeneration. BIOENGINEERING (BASEL, SWITZERLAND) 2023; 10:bioengineering10010094. [PMID: 36671666 PMCID: PMC9854494 DOI: 10.3390/bioengineering10010094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/26/2022] [Accepted: 12/30/2022] [Indexed: 01/13/2023]
Abstract
In recent years, multicomponent hydrogels such as interpenetrating polymer networks (IPNs) have emerged as innovative biomaterials due to the synergistic combination of the properties of each network. We hypothesized that an innovative non-animal IPN hydrogel combining self-setting silanized hydroxypropyl methylcellulose (Si-HPMC) with photochemically cross-linkable dextran methacrylate (DexMA) could be a valid alternative to porcine collagen membranes in guided bone regeneration. Calvaria critical-size defects in rabbits were filled with synthetic biphasic calcium phosphate granules in conjunction with Si-HPMC; DexMA; or Si-HPMC/DexMA experimental membranes; and in a control group with a porcine collagen membrane. The synergistic effect obtained by interpenetration of the two polymer networks improved the physicochemical properties, and the gel point under visible light was reached instantaneously. Neutral red staining of murine L929 fibroblasts confirmed the cytocompatibility of the IPN. At 8 weeks, the photo-crosslinked membranes induced a similar degree of mineral deposition in the calvaria defects compared to the positive control, with 30.5 ± 5.2% for the IPN and 34.3 ± 8.2% for the collagen membrane. The barrier effect appeared to be similar in the IPN test group compared with the collagen membrane. In conclusion, this novel, easy-to-handle and apply, photochemically cross-linkable IPN hydrogel is an excellent non-animal alternative to porcine collagen membrane in guided bone regeneration procedures.
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8
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De Berdt P, Vanvarenberg K, Ucakar B, Bouzin C, Paquot A, Gratpain V, Loriot A, Payen V, Bearzatto B, Muccioli GG, Gatto L, Diogenes A, des Rieux A. The human dental apical papilla promotes spinal cord repair through a paracrine mechanism. Cell Mol Life Sci 2022; 79:252. [PMID: 35445984 PMCID: PMC11072347 DOI: 10.1007/s00018-022-04210-8] [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: 12/20/2021] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 11/03/2022]
Abstract
Traumatic spinal cord injury is an overwhelming condition that strongly and suddenly impacts the patient's life and her/his entourage. There are currently no predictable treatments to repair the spinal cord, while many strategies are proposed and evaluated by researchers throughout the world. One of the most promising avenues is the transplantation of stem cells, although its therapeutic efficiency is limited by several factors, among which cell survival at the lesion site. In our previous study, we showed that the implantation of a human dental apical papilla, residence of stem cells of the apical papilla (SCAP), supported functional recovery in a rat model of spinal cord hemisection. In this study, we employed protein multiplex, immunohistochemistry, cytokine arrays, RT- qPCR, and RNAseq technology to decipher the mechanism by which the dental papilla promotes repair of the injured spinal cord. We found that the apical papilla reduced inflammation at the lesion site, had a neuroprotective effect on motoneurons, and increased the apoptosis of activated macrophages/ microglia. This therapeutic effect is likely driven by the secretome of the implanted papilla since it is known to secrete an entourage of immunomodulatory or pro-angiogenic factors. Therefore, we hypothesize that the secreted molecules were mainly produced by SCAP, and that by anchoring and protecting them, the human papilla provides a protective niche ensuring that SCAP could exert their therapeutic actions. Therapeutic abilities of the papilla were demonstrated in the scope of spinal cord injury but could very well be beneficial to other types of tissue.
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Affiliation(s)
- P De Berdt
- Louvain Drug Research Institute (LDRI), Advanced Drug Delivery and Biomaterials (ADDB), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - K Vanvarenberg
- Louvain Drug Research Institute (LDRI), Advanced Drug Delivery and Biomaterials (ADDB), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - B Ucakar
- Louvain Drug Research Institute (LDRI), Advanced Drug Delivery and Biomaterials (ADDB), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - C Bouzin
- IREC Imaging platform (2IP), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - A Paquot
- Louvain Drug Research Institute (LDRI), Bioanalysis and Pharmacology of Bioactive Lipids (BPBL), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - V Gratpain
- Louvain Drug Research Institute (LDRI), Advanced Drug Delivery and Biomaterials (ADDB), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - A Loriot
- de Duve Institute, Computational Biology and Bioinformatics Unit (CBIO), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - V Payen
- Louvain Drug Research Institute (LDRI), Advanced Drug Delivery and Biomaterials (ADDB), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - B Bearzatto
- Institut de Recherche Expérimentale et Clinique (IREC), Center for Applied Molecular Technologies (CTMA), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - G G Muccioli
- Louvain Drug Research Institute (LDRI), Bioanalysis and Pharmacology of Bioactive Lipids (BPBL), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium
| | - L Gatto
- de Duve Institute, Computational Biology and Bioinformatics Unit (CBIO), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - A Diogenes
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - A des Rieux
- Louvain Drug Research Institute (LDRI), Advanced Drug Delivery and Biomaterials (ADDB), Université Catholique de Louvain (UCLouvain), 1200, Brussels, Belgium.
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Resistant Starch-Based Edible Coating Composites for Spray-Dried Microencapsulation of Lactobacillus acidophilus, Comparative Assessment of Thermal Protection, In Vitro Digestion and Physicochemical Characteristics. COATINGS 2021. [DOI: 10.3390/coatings11050587] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Polysaccharides have excellent potential as food-grade coating materials for microencapsulation in pro- and prebiotics-based functional food industry. In this study, potato, maize, and rice resistant starches composite coatings with D-mannose, maltodextrin, and whey protein concentrate were prepared for the spray-dried microencapsulation of Lactobacillus acidophilus KLDS 1.1003. Assessment of different polysaccharide coatings to enhance the longevity of probiotics at high temperatures of spray-drying process, storage, and targeted delivery in the gastrointestinal tract were the key objectives of the present study. The highest microencapsulation efficiencies were shown by maize (95.80%) and potato (94.30%) resistant starches. Similarly, maize resistant starch (MRS)-based composites provided the highest thermal resistance, with Tg 38.77 ± 1.10–93.13 ± 0.81 °C and showed the least 2.1 log cycles viability loss in simulated GI tract. Viability losses during storage were in the following order: control > RRS > PRS > MRS, and the inactivation rate of the microencapsulated cells followed the first-order kinetics (R2 = 0.9264–0.9918). The resistant starch-based spray-dried microcapsules possessed 27.00 ± 0.03 to 52.28 ± 1.02 µm size range and SEM micrographs showed a unified smooth surface without cracks and ruptures. These findings will expand the potential use of natural food-grade coatings in functional foods and allied industries involving spray-dried products.
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10
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Zheng K, Du D. Recent advances of hydrogel-based biomaterials for intervertebral disc tissue treatment: A literature review. J Tissue Eng Regen Med 2021; 15:299-321. [PMID: 33660950 DOI: 10.1002/term.3172] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 12/23/2020] [Indexed: 12/14/2022]
Abstract
Low back pain is an increasingly prevalent symptom mainly associated with intervertebral disc (IVD) degeneration. It is highly correlated with aging, as the nucleus pulposus (NP) dehydrates and annulus fibrosus fissure formatting, which finally results in the IVD herniation and related clinical symptoms. Hydrogels have been drawing increasing attention as the ideal candidates for IVD degeneration because of their unique properties such as biocompatibility, highly tunable mechanical properties, and especially the water absorption and retention ability resembling the normal NP tissue. Numerous innovative hydrogel polymers have been generated in the most recent years. This review article will first briefly describe the anatomy and pathophysiology of IVDs and current therapies with their limitations. Following that, the article introduces the hydrogel materials in the classification of their origins. Next, it reviews the recent hydrogel polymers explored for IVD regeneration and analyses what efforts have been made to overcome the existing limitations. Finally, the challenges and prospects of hydrogel-based treatments for IVD tissue are also discussed. We believe that these novel hydrogel-based strategies may shed light on new possibilities in IVD degeneration disease.
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Affiliation(s)
- Kaiwen Zheng
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Dajiang Du
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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11
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Park Y, Huh KM, Kang SW. Applications of Biomaterials in 3D Cell Culture and Contributions of 3D Cell Culture to Drug Development and Basic Biomedical Research. Int J Mol Sci 2021; 22:2491. [PMID: 33801273 PMCID: PMC7958286 DOI: 10.3390/ijms22052491] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/25/2021] [Accepted: 02/25/2021] [Indexed: 01/10/2023] Open
Abstract
The process of evaluating the efficacy and toxicity of drugs is important in the production of new drugs to treat diseases. Testing in humans is the most accurate method, but there are technical and ethical limitations. To overcome these limitations, various models have been developed in which responses to various external stimuli can be observed to help guide future trials. In particular, three-dimensional (3D) cell culture has a great advantage in simulating the physical and biological functions of tissues in the human body. This article reviews the biomaterials currently used to improve cellular functions in 3D culture and the contributions of 3D culture to cancer research, stem cell culture and drug and toxicity screening.
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Affiliation(s)
- Yujin Park
- Department of Polymer Science and Engineering & Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea;
- Predictive Model Research Center, Korea Institute of Toxicology, Daejeon 34114, Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering & Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea;
| | - Sun-Woong Kang
- Predictive Model Research Center, Korea Institute of Toxicology, Daejeon 34114, Korea
- Human and Environmental Toxicology Program, University of Science and Technology, Daejeon 34114, Korea
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12
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Pouraghaei Sevari S, Ansari S, Chen C, Moshaverinia A. Harnessing Dental Stem Cell Immunoregulation Using Cell-Laden Biomaterials. J Dent Res 2021; 100:568-575. [PMID: 33478322 DOI: 10.1177/0022034520985820] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Successful tissue engineering therapies rely on the appropriate selection of the cell source, biomaterial, and regulatory factors. To be applied in a wide range of clinical applications, the ideal cell source needs to be easily accessible and abundant. Human orofacial tissues and teeth harbor several populations of mesenchymal stem cells (MSCs) with self-renewal and multilineage differentiation capabilities. The ease of access, relative abundance, and minimally invasive isolation procedures needed to harvest most types of the dental-derived MSCs render them a promising cell source for tissue engineering applications. A growing body of evidence has reported the profound immunoregulatory potential of dental-derived MSCs as compared with their bone marrow counterparts. Biomaterials can act as a physical barrier protecting the MSCs from the invasion of the immune system by hindering penetration of proinflammatory cells/cytokines, leading to higher viability of the encapsulated MSCs and improved tissue regeneration. Besides their protective capabilities, biomaterials can actively contribute to the immunoregulatory potential of the MSCs through their physical and chemical properties, including porosity and elasticity. However, despite recent advancement, the therapeutic capability of biomaterials to regulate the MSC-host immune system crosstalk and the mechanism underlying this immunoregulation has been poorly understood. It has been reported that biomaterials can regulate the viability and determine the fate of the encapsulated MSCs through modulation of the NF-kB pathway and the caspase-3 and caspase-8 proapoptotic cascades. Additionally, the physiomechanical properties of the encapsulating biomaterial have been shown to modulate clustering of TNF-α receptors on the encapsulated MSCs while regulating the production of anti-inflammatory factors such as indoleamine 2,3-dioxygenase (IDO) and prostaglandin E2 (PGE2) through activation of the P38 MAPK pathway. In the current review, we sought to provide a thorough overview of the immunomodulatory functions of dental-derived MSCs and the role of biomaterials in their interplay with the host immune system.
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Affiliation(s)
- S Pouraghaei Sevari
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - S Ansari
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - C Chen
- Department of Oral and Maxillofacial Surgery and Pharmacology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Center of Innovation and Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - A Moshaverinia
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA.,California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, USA
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13
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Amorim S, Soares da Costa D, Pashkuleva I, Reis CA, Reis RL, Pires RA. 3D hydrogel mimics of the tumor microenvironment: the interplay among hyaluronic acid, stem cells and cancer cells. Biomater Sci 2021; 9:252-260. [DOI: 10.1039/d0bm00843e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A 3D tumor microenvironment model is presented, combining hyaluronic acid (HA) and alginate. The model can be used to mimic the bioactivity of HA in gastric cancer, as well as the crosstalk between cancer cells and mesenchymal stem cells.
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Affiliation(s)
- Sara Amorim
- 3B's Research Group
- I3Bs – Research Institute on Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Diana Soares da Costa
- 3B's Research Group
- I3Bs – Research Institute on Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Iva Pashkuleva
- 3B's Research Group
- I3Bs – Research Institute on Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | | | - Rui L. Reis
- 3B's Research Group
- I3Bs – Research Institute on Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Ricardo A. Pires
- 3B's Research Group
- I3Bs – Research Institute on Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
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14
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Flegeau K, Toquet C, Rethore G, d'Arros C, Messager L, Halgand B, Dupont D, Autrusseau F, Lesoeur J, Veziers J, Bordat P, Bresin A, Guicheux J, Delplace V, Gautier H, Weiss P. In Situ Forming, Silanized Hyaluronic Acid Hydrogels with Fine Control Over Mechanical Properties and In Vivo Degradation for Tissue Engineering Applications. Adv Healthc Mater 2020; 9:e2000981. [PMID: 32864869 DOI: 10.1002/adhm.202000981] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/09/2020] [Indexed: 12/19/2022]
Abstract
In situ forming hydrogels that can be injected into tissues in a minimally-invasive fashion are appealing as delivery vehicles for tissue engineering applications. Ideally, these hydrogels should have mechanical properties matching those of the host tissue, and a rate of degradation adapted for neo-tissue formation. Here, the development of in situ forming hyaluronic acid hydrogels based on the pH-triggered condensation of silicon alkoxide precursors into siloxanes is reported. Upon solubilization and pH adjustment, the low-viscosity precursor solutions are easily injectable through fine-gauge needles prior to in situ gelation. Tunable mechanical properties (stiffness from 1 to 40 kPa) and associated tunable degradability (from 4 days to more than 3 weeks in vivo) are obtained by varying the degree of silanization (from 4.3% to 57.7%) and molecular weight (120 and 267 kDa) of the hyaluronic acid component. Following cell encapsulation, high cell viability (> 80%) is obtained for at least 7 days. Finally, the in vivo biocompatibility of silanized hyaluronic acid gels is verified in a subcutaneous mouse model and a relationship between the inflammatory response and the crosslink density is observed. Silanized hyaluronic acid hydrogels constitute a tunable hydrogel platform for material-assisted cell therapies and tissue engineering applications.
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Affiliation(s)
- Killian Flegeau
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Claire Toquet
- Department of Pathology University Hospital of Nantes Nantes F‐44042 France
| | - Gildas Rethore
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Cyril d'Arros
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Léa Messager
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Boris Halgand
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Davy Dupont
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Florent Autrusseau
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Julie Lesoeur
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- SC3M SFR Santé F. Bonamy FED 4203 UMS Inserm 016 CNRS 3556 Nantes F‐44042 France
| | - Joëlle Veziers
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
- SC3M SFR Santé F. Bonamy FED 4203 UMS Inserm 016 CNRS 3556 Nantes F‐44042 France
| | | | | | - Jérôme Guicheux
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Vianney Delplace
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Hélène Gautier
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- Université de Nantes Faculté de Pharmacie Laboratoire de Pharmacie Galénique Nantes F‐44042 France
| | - Pierre Weiss
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
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15
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Yang X, Mohseni M, Bas O, Meinert C, New EJ, Castro NJ. Type II Photoinitiator and Tuneable Poly(Ethylene Glycol)-Based Materials Library for Visible Light Photolithography. Tissue Eng Part A 2020; 26:292-304. [PMID: 31910098 DOI: 10.1089/ten.tea.2019.0282] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Stereolithography (SL) has several advantages over traditional biomanufacturing techniques such as fused deposition modeling, including increased speed, accuracy, and efficiency. While SL has been broadly used in tissue engineering for the fabrication of three-dimensional scaffolds that can mimic the in vivo environment for cell growth and tissue regeneration, lithographic printing is usually performed on single-component materials cured with ultraviolet light, severely limiting the versatility and cytocompatibility of such systems. In this study, we report a highly tunable, low-cost photoinitiator system that we used to establish a systematic library of crosslinked materials based on low molecular weight poly(ethylene glycol) diacrylate. We assessed the physicochemical properties, photocrosslinking efficiency, cost performance, and biocompatibility to demonstrate the capability of manufacturing a multimaterial complex tissue scaffold. [Figure: see text] Impact statement Stereolithography (SL) has advantages over traditional biomanufacturing techniques, including accuracy and efficiency. While SL has been broadly used for fabricating three-dimensional scaffolds that can mimic the in vivo environment for cell growth and tissue regeneration, lithographic printing is usually performed on single-component materials cured with ultraviolet light, severely limiting the versatility and cytocompatibility of such systems. In this study, we report a highly tunable photoinitiator system and establish a systematic library of crosslinked materials based on poly(ethylene glycol) diacrylate. We assessed the physicochemical properties, photocrosslinking efficiency and biocompatibility to demonstrate the capability of manufacturing a multimaterial complex tissue scaffold.
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Affiliation(s)
- Xin Yang
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, Australia
| | - Mina Mohseni
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, Australia
| | - Onur Bas
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, Australia.,ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, Australia
| | - Christoph Meinert
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, Australia.,ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, Australia
| | - Elizabeth J New
- School of Chemistry, The University of Sydney, Sydney, Australia.,The University of Sydney Nano Institute, Sydney, Australia
| | - Nathan J Castro
- Joint Quantum Institute and Physical Measurements Laboratory, NIST/University of Maryland, College Park, Maryland
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16
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Martín-Martín Y, Fernández-García L, Sanchez-Rebato MH, Marí-Buyé N, Rojo FJ, Pérez-Rigueiro J, Ramos M, Guinea GV, Panetsos F, González-Nieto D. Evaluation of Neurosecretome from Mesenchymal Stem Cells Encapsulated in Silk Fibroin Hydrogels. Sci Rep 2019; 9:8801. [PMID: 31217546 PMCID: PMC6584675 DOI: 10.1038/s41598-019-45238-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/31/2019] [Indexed: 12/13/2022] Open
Abstract
Physical and cognitive disabilities are hallmarks of a variety of neurological diseases. Stem cell-based therapies are promising solutions to neuroprotect and repair the injured brain and overcome the limited capacity of the central nervous system to recover from damage. It is widely accepted that most benefits of different exogenously transplanted stem cells rely on the secretion of different factors and biomolecules that modulate inflammation, cell death and repair processes in the damaged host tissue. However, few cells survive in cerebral tissue after transplantation, diminishing the therapeutic efficacy. As general rule, cell encapsulation in natural and artificial polymers increases the in vivo engraftment of the transplanted cells. However, we have ignored the consequences of such encapsulation on the secretory activity of these cells. In this study, we investigated the biological compatibility between silk fibroin hydrogels and stem cells of mesenchymal origin, a cell population that has gained increasing attention and popularity in regenerative medicine. Although the survival of mesenchymal stem cells was not affected inside hydrogels, this biomaterial format caused adhesion and proliferation deficits and impaired secretion of several angiogenic, chemoattractant and neurogenic factors while concurrently potentiating the anti-inflammatory capacity of this cell population through a massive release of TGF-Beta-1. Our results set a milestone for the exploration of engineering polymers to modulate the secretory activity of stem cell-based therapies for neurological disorders.
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Affiliation(s)
| | | | - Miguel H Sanchez-Rebato
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
- Neurocomputing and Neurorobotics Research Group: Faculty of Biology and Faculty of Optics, Universidad Complutense de Madrid., Madrid, Spain
- Brain Plasticity Group. Health Research Institute of the Hospital Clínico San Carlos (IdISSC), Madrid, Spain
- GReD, UMR CNRS 6293 - INSERM U1103 - Université Clermont Auvergne, Faculté de Medicine, Clermont-Ferrand, France
| | - Núria Marí-Buyé
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
- Departamento de Ciencia de Materiales. ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Francisco J Rojo
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
- Departamento de Ciencia de Materiales. ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - José Pérez-Rigueiro
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
- Departamento de Ciencia de Materiales. ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Milagros Ramos
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
- Departamento de Tecnología Fotónica y Bioingeniería. ETSI Telecomunicaciones, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Gustavo V Guinea
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
- Departamento de Ciencia de Materiales. ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Fivos Panetsos
- Neurocomputing and Neurorobotics Research Group: Faculty of Biology and Faculty of Optics, Universidad Complutense de Madrid., Madrid, Spain
- Brain Plasticity Group. Health Research Institute of the Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Daniel González-Nieto
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain.
- Departamento de Tecnología Fotónica y Bioingeniería. ETSI Telecomunicaciones, Universidad Politécnica de Madrid, Madrid, Spain.
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.
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In situ photochemical crosslinking of hydrogel membrane for Guided Tissue Regeneration. Dent Mater 2018; 34:1769-1782. [PMID: 30336953 DOI: 10.1016/j.dental.2018.09.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 09/25/2018] [Accepted: 09/26/2018] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Periodontitis is an inflammatory disease that destroys the tooth-supporting attachment apparatus. Guided tissue regeneration (GTR) is a technique based on a barrier membrane designed to prevent wound space colonization by gingival cells. This study examined a new formulation composed of two polymers that could be photochemically cross-linked in situ into an interpenetrated polymer network (IPN) forming a hydrogel membrane. METHODS We synthetized and characterized silanized hydroxypropyl methylcellulose (Si-HPMC) for its cell barrier properties and methacrylated carboxymethyl chitosan (MA-CMCS) for its degradable backbone to use in IPN. Hydrogel membranes were cross-linked using riboflavin photoinitiator and a dentistry visible light lamp. The biomaterial's physicochemical and mechanical properties were determined. Hydrogel membrane degradation was evaluated in lysozyme. Cytocompatibility was estimated by neutral red uptake. The cell barrier property was studied culturing human primary gingival fibroblasts or human gingival explants on membrane and analyzed with confocal microscopy and histological staining. RESULTS The IPN hydrogel membrane was obtained after 120s of irradiation. The IPN showed a synergistic increase in Young moduli compared with the single networks. The CMCS addition in IPN allows a progressive weight loss compared to each polymer network. Cytocompatibility was confirmed by neutral red assay. Human cell invasion was prevented by hydrogel membranes and histological sections revealed that the biomaterial exhibited a barrier effect in contact with soft gingival tissue. SIGNIFICANCE We demonstrated the ability of an innovative polymer formulation to form in situ, using a dentist's lamp, an IPN hydrogel membrane, which could be an easy-to-use biomaterial for GTR therapy.
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Application of Millifluidics to Encapsulate and Support Viable Human Mesenchymal Stem Cells in a Polysaccharide Hydrogel. Int J Mol Sci 2018; 19:ijms19071952. [PMID: 29970871 PMCID: PMC6073862 DOI: 10.3390/ijms19071952] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 01/10/2023] Open
Abstract
Human adipose-derived stromal cells (hASCs) are widely known for their immunomodulatory and anti-inflammatory properties. This study proposes a method to protect cells during and after their injection by encapsulation in a hydrogel using a droplet millifluidics technique. A biocompatible, self-hardening biomaterial composed of silanized-hydroxypropylmethylcellulose (Si-HPMC) hydrogel was used and dispersed in an oil continuous phase. Spherical particles with a mean diameter of 200 μm could be obtained in a reproducible manner. The viability of the encapsulated hASCs in the Si-HPMC particles was 70% after 14 days in vitro, confirming that the Si-HPMC particles supported the diffusion of nutrients, vitamins, and glucose essential for survival of the encapsulated hASCs. The combination of droplet millifluidics and biomaterials is therefore a very promising method for the development of new cellular microenvironments, with the potential for applications in biomedical engineering.
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19
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Biomaterial-assisted cell therapy in osteoarthritis: From mesenchymal stem cells to cell encapsulation. Best Pract Res Clin Rheumatol 2017; 31:730-745. [DOI: 10.1016/j.berh.2018.05.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 04/14/2018] [Accepted: 04/23/2018] [Indexed: 02/07/2023]
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