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Liu Y, Huang T, Yap NA, Lim K, Ju LA. Harnessing the power of bioprinting for the development of next-generation models of thrombosis. Bioact Mater 2024; 42:328-344. [PMID: 39295733 PMCID: PMC11408160 DOI: 10.1016/j.bioactmat.2024.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 08/07/2024] [Accepted: 08/29/2024] [Indexed: 09/21/2024] Open
Abstract
Thrombosis, a leading cause of cardiovascular morbidity and mortality, involves the formation of blood clots within blood vessels. Current animal models and in vitro systems have limitations in recapitulating the complex human vasculature and hemodynamic conditions, limiting the research in understanding the mechanisms of thrombosis. Bioprinting has emerged as a promising approach to construct biomimetic vascular models that closely mimic the structural and mechanical properties of native blood vessels. This review discusses the key considerations for designing bioprinted vascular conduits for thrombosis studies, including the incorporation of key structural, biochemical and mechanical features, the selection of appropriate biomaterials and cell sources, and the challenges and future directions in the field. The advancements in bioprinting techniques, such as multi-material bioprinting and microfluidic integration, have enabled the development of physiologically relevant models of thrombosis. The future of bioprinted models of thrombosis lies in the integration of patient-specific data, real-time monitoring technologies, and advanced microfluidic platforms, paving the way for personalized medicine and targeted interventions. As the field of bioprinting continues to evolve, these advanced vascular models are expected to play an increasingly important role in unraveling the complexities of thrombosis and improving patient outcomes. The continued advancements in bioprinting technologies and the collaboration between researchers from various disciplines hold great promise for revolutionizing the field of thrombosis research.
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Affiliation(s)
- Yanyan Liu
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Tao Huang
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW 2006, Australia
| | - Nicole Alexis Yap
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Khoon Lim
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW 2006, Australia
- School of Medical Sciences, The University of Sydney, Darlington, NSW 2008, Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, Camperdown, NSW, 2006, Australia
| | - Lining Arnold Ju
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW 2006, Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, Camperdown, NSW, 2006, Australia
- Heart Research Institute, Camperdown, Newtown, NSW 2042, Australia
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da Silva ISP, Bordini EAF, Bronze-Uhle ES, de Stuani V, Costa MC, de Carvalho LAM, Cassiano FB, de Azevedo Silva LJ, Borges AFS, Soares DG. Photo-crosslinkable hydrogel incorporated with bone matrix particles for advancements in dentin tissue engineering. J Biomed Mater Res A 2024; 112:2273-2288. [PMID: 39015005 DOI: 10.1002/jbm.a.37777] [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: 08/31/2023] [Revised: 06/11/2024] [Accepted: 07/08/2024] [Indexed: 07/18/2024]
Abstract
The objective of this study was to create injectable photo-crosslinkable biomaterials, using gelatin methacryloyl (GelMA) hydrogel, combined with a decellularized bone matrix (BMdc) and a deproteinized (BMdp) bovine bone matrix. These were intended to serve as bioactive scaffolds for dentin regeneration. The parameters for GelMA hydrogel fabrication were initially selected, followed by the incorporation of BMdc and BMdp at a 1% (w/v) ratio. Nano-hydroxyapatite (nHA) was also included as a control. A physicochemical characterization was conducted, with FTIR analysis indicating that the mineral phase was complexed with GelMA, and BMdc was chemically bonded to the amide groups of gelatin. The porous structure was preserved post-BMdc incorporation, with bone particles incorporated alongside the pores. Conversely, the mineral phase was situated inside the pore opening, affecting the degree of porosity. The mineral phase did not modify the degradability of GelMA, even under conditions of type I collagenase-mediated enzymatic challenge, allowing hydrogel injection and increased mechanical strength. Subsequently, human dental pulp cells (HDPCs) were seeded onto the hydrogels. The cells remained viable and proliferative, irrespective of the GelMA composition. All mineral phases resulted in a significant increase in alkaline phosphatase activity and mineralized matrix deposition. However, GelMA-BMdc exhibited higher cell expression values, significantly surpassing those of all other formulations. In conclusion, our results showed that GelMA-BMdc produced a porous and stable hydrogel, capable of enhancing odontoblastic differentiation and mineral deposition when in contact with HDPCs, thereby showing potential for dentin regeneration.
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Affiliation(s)
- Isabela Sanches Pompeo da Silva
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | - Ester Alves Ferreira Bordini
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | - Erika Soares Bronze-Uhle
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | - Vitor de Stuani
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | - Matheus Castro Costa
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | | | - Fernanda Balestrero Cassiano
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | - Lucas José de Azevedo Silva
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | - Ana Flávia Sanches Borges
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
| | - Diana Gabriela Soares
- Department of Operative Dentistry, Endodontics, and Dental Materials, School of Dentistry, University of São Paulo-USP, Bauru, Brazil
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Guan X, Yao H, Wu J. Photocrosslinkable hydrogel of ibuprofen-chitosan methacrylate modulates inflammatory response. J Biomed Mater Res A 2024; 112:2001-2017. [PMID: 38837524 DOI: 10.1002/jbm.a.37758] [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: 03/30/2024] [Revised: 05/20/2024] [Accepted: 05/25/2024] [Indexed: 06/07/2024]
Abstract
Methacrylated biopolymers are unique and attractive in preparing photocrosslinkable hydrogels in biomedical applications. Here we report a novel chitosan (CS) derivative-based injectable hydrogel with anti-inflammatory capacity via methacrylation modification. First, ibuprofen (IBU) was conjugated to the backbone of CS by carbodiimide chemistry to obtain IBU-CS conjugate, which converts water-insoluble unmodified CS into water-soluble IBU-CS conjugate. The IBU-CS conjugate did not precipitate at the pH of 7, which was beneficial to subsequent chemical modification with methacrylic anhydride to prepare IBU-CS methacrylate (IBU-CS-MA) with significantly higher methacrylation substitution. Photocrosslinkable in situ gel formation of injectable IBU-CS-MA hydrogel was verified using lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) initiator under visible light. The IBU-CS-MA hydrogel showed good cytocompatibility as revealed by encapsulating and in vitro culturing murine fibroblasts within hydrogels. It promoted macrophage polarization toward M2 phenotype, as well as downregulated pro-inflammatory gene expression and upregulated anti-inflammatory gene expression of macrophages. The hydrogel also significantly reduced the reactive oxygen specifies (ROS) and nitrogen oxide (NO) produced by lipopolysaccharides (LPS)-stimulated macrophages. Upon subcutaneous implantation in a rat model, it significantly mitigated inflammatory responses as shown by significantly lower inflammatory cell density, less cell infiltration, and much thinner fibrous capsule compared with CS methacrylate (CS-MA) hydrogel. This study suggests that IBU-CS conjugate represents a feasible strategy for preparing CS-based methacrylate hydrogels for biomedical applications.
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Affiliation(s)
- Xiangheng Guan
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Department of Biomedical Engineering, Donghua University, Shanghai, People's Republic of China
| | - Haochen Yao
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, First Hospital of Jilin University, Changchun, People's Republic of China
| | - Jinglei Wu
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Department of Biomedical Engineering, Donghua University, Shanghai, People's Republic of China
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4
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Li X, Si Y, Liang J, Li M, Wang Z, Qin Y, Sun L. Enhancing bone regeneration and immunomodulation via gelatin methacryloyl hydrogel-encapsulated exosomes from osteogenic pre-differentiated mesenchymal stem cells. J Colloid Interface Sci 2024; 672:179-199. [PMID: 38838627 DOI: 10.1016/j.jcis.2024.05.209] [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: 04/22/2024] [Revised: 05/13/2024] [Accepted: 05/27/2024] [Indexed: 06/07/2024]
Abstract
Mesenchymal stem cell-derived exosomes (MSC-Exos) have emerged as promising candidates for cell-free therapy in tissue regeneration. However, the native osteogenic and angiogenic capacities of MSC-Exos are often insufficient to repair critical-sized bone defects, and the underlying immune mechanisms remain elusive. Furthermore, achieving sustained delivery and stable activity of MSC-Exos at the defect site is essential for optimal therapeutic outcomes. Here, we extracted exosomes from osteogenically pre-differentiated human bone marrow mesenchymal stem cells (hBMSCs) by ultracentrifugation and encapsulated them in gelatin methacryloyl (GelMA) hydrogel to construct a composite scaffold. The resulting exosome-encapsulated hydrogel exhibited excellent mechanical properties and biocompatibility, facilitating sustained delivery of MSC-Exos. Osteogenic pre-differentiation significantly enhanced the osteogenic and angiogenic properties of MSC-Exos, promoting osteogenic differentiation of hBMSCs and angiogenesis of human umbilical vein endothelial cells (HUVECs). Furthermore, MSC-Exos induced polarization of Raw264.7 cells from a pro-inflammatory phenotype to an anti-inflammatory phenotype under simulated inflammatory conditions, thereby creating an immune microenvironment conducive to osteogenesis. RNA sequencing and bioinformatics analysis revealed that MSC-Exos activate the p53 pathway through targeted delivery of internal microRNAs and regulate macrophage polarization by reducing DNA oxidative damage. Our study highlights the potential of osteogenic exosome-encapsulated composite hydrogels for the development of cell-free scaffolds in bone tissue engineering.
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Affiliation(s)
- Xiaorong Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Yunhui Si
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China.
| | - Jingxian Liang
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Mengsha Li
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
| | - Zhiwei Wang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
| | - Yinying Qin
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Litao Sun
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
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Tanadchangsaeng N, Pasanaphong K, Tawonsawatruk T, Rattanapinyopituk K, Tangketsarawan B, Rawiwet V, Kongchanagul A, Srikaew N, Yoyruerop T, Panupinthu N, Sangpayap R, Panaksri A, Boonyagul S, Hemstapat R. 3D bioprinting of fish skin-based gelatin methacryloyl (GelMA) bio-ink for use as a potential skin substitute. Sci Rep 2024; 14:23240. [PMID: 39369014 PMCID: PMC11455937 DOI: 10.1038/s41598-024-73774-1] [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: 07/19/2024] [Accepted: 09/20/2024] [Indexed: 10/07/2024] Open
Abstract
Gelatin methacryloyl (GelMA), typically derived from mammalian sources, has recently emerged as an ideal bio-ink for three-dimensional (3D) bioprinting. Herein, we developed a fish skin-based GelMA bio-ink for the fabrication of a 3D GelMA skin substitute with a 3D bioprinter. Several concentrations of methacrylic acid anhydride were used to fabricate GelMA, in which their physical-mechanical properties were assessed. This fish skin-based GelMA bio-ink was loaded with human adipose tissue-derived mesenchymal stromal cells (ASCs) and human platelet lysate (HPL) and then printed to obtain 3D ASCs + HPL-loaded GelMA scaffolds. Cell viability test and a preliminary investigation of its effectiveness in promoting wound closure were evaluated in a critical-sized full thickness skin defect in a rat model. The cell viability results showed that the number of ASCs increased significantly within the 3D GelMA hydrogel scaffold, indicating its biocompatibility property. In vivo results demonstrated that ASCs + HPL-loaded GelMA scaffolds could delay wound contraction, markedly enhanced collagen deposition, and promoted the formation of new blood vessels, especially at the wound edge, compared to the untreated group. Therefore, this newly fish skin-based GelMA bio-ink developed in this study has the potential to be utilized for the printing of 3D GelMA skin substitutes.
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Affiliation(s)
| | | | - Tulyapruek Tawonsawatruk
- Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kasem Rattanapinyopituk
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | | | - Visut Rawiwet
- Central Animal Facility, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Alita Kongchanagul
- Center for Vaccine Development, Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand
| | - Narongrit Srikaew
- Research Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Thanaporn Yoyruerop
- Mahidol University-Frontier Research Facility (MU-FRF), Mahidol University, Nakhon Pathom, Thailand
| | - Nattapon Panupinthu
- Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Ratirat Sangpayap
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Anuchan Panaksri
- College of Biomedical Engineering, Rangsit University, Pathum Thani, Thailand
| | - Sani Boonyagul
- College of Biomedical Engineering, Rangsit University, Pathum Thani, Thailand
| | - Ruedee Hemstapat
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok, Thailand.
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6
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Haghpanah Z, Mondal D, Momenbeitollahi N, Mohsenkhani S, Zarshenas K, Jin Y, Watson M, Willett T, Gorbet M. In vitro evaluation of bone cell response to novel 3D-printable nanocomposite biomaterials for bone reconstruction. J Biomed Mater Res A 2024; 112:1725-1739. [PMID: 38619300 DOI: 10.1002/jbm.a.37719] [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: 11/29/2023] [Revised: 02/24/2024] [Accepted: 03/29/2024] [Indexed: 04/16/2024]
Abstract
Critically-sized segmental bone defects represent significant challenges requiring grafts for reconstruction. 3D-printed synthetic bone grafts are viable alternatives to structural allografts if engineered to provide appropriate mechanical performance and osteoblast/osteoclast cell responses. Novel 3D-printable nanocomposites containing acrylated epoxidized soybean oil (AESO) or methacrylated AESO (mAESO), polyethylene glycol diacrylate, and nanohydroxyapatite (nHA) were produced using masked stereolithography. The effects of volume fraction of nHA and methacrylation of AESO on interactions of differentiated MC3T3-E1 osteoblast (dMC3T3-OB) and differentiated RAW264.7 osteoclast cells with 3D-printed nanocomposites were evaluated in vitro and compared with a control biomaterial, hydroxyapatite (HA). Higher nHA content and methacrylation significantly improved the mechanical properties. All nanocomposites supported dMC3T3-OB cells' adhesion and proliferation. Higher amounts of nHA enhanced cell adhesion and proliferation. mAESO in the nanocomposites resulted in greater adhesion, proliferation, and activity at day 7 compared with AESO nanocomposites. Excellent osteoclast-like cells survival, defined actin rings, and large multinucleated cells were only observed on the high nHA fraction (30%) mAESO nanocomposite and the HA control. Thus, mAESO-based nanocomposites containing higher amounts of nHA have better interactions with osteoblast-like and osteoclast-like cells, comparable with HA controls, making them a potential future alternative graft material for bone defect repair.
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Affiliation(s)
- Zahra Haghpanah
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Dibakar Mondal
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Nikan Momenbeitollahi
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Sadaf Mohsenkhani
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Kiyoumars Zarshenas
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Yutong Jin
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Michael Watson
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Thomas Willett
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Maud Gorbet
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
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Kang J, Liang Y, Liu J, Hu M, Lin S, Zhong J, Wang C, Zeng Q, Zhang C. Dual roles of photosynthetic hydrogel with sustained oxygen generation in promoting cell survival and eradicating anaerobic infection. Mater Today Bio 2024; 28:101197. [PMID: 39221211 PMCID: PMC11364899 DOI: 10.1016/j.mtbio.2024.101197] [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: 06/02/2024] [Revised: 07/27/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024] Open
Abstract
Tissue engineering offers a promising alternative for oral and maxillofacial tissue defect rehabilitation; however, cells within a sizeable engineered tissue construct after transplantation inevitably face prolonged and severe hypoxic conditions, which may compromise the survivability of the transplanted cells and arouse the concern of anaerobic infection. Microalgae, which can convert carbon dioxide and water into oxygen and glucose through photosynthesis, have been studied as a source of oxygen supply for several biomedical applications, but their promise in orofacial tissue regeneration remains unexplored. Here, we demonstrated that through photosynthetic oxygenation, Chlamydomonas reinhardtii (C. reinhardtii) supported dental pulp stem cell (DPSC) energy production and survival under hypoxia. We developed a multifunctional photosynthetic hydrogel by embedding DPSCs and C. reinhardtii encapsulated alginate microspheres (CAMs) within gelatin methacryloyl hydrogel (GelMA) (CAMs@GelMA). This CAMs@GelMA hydrogel can generate a sustainable and sufficient oxygen supply, reverse intracellular hypoxic status, and enhance the metabolic activity and viability of DPSCs. Furthermore, the CAMs@GelMA hydrogel exhibited selective antibacterial activity against oral anaerobes and remarkable antibiofilm effects on multispecies biofilms by disrupting the hypoxic microenvironment and increasing reactive oxygen species generation. Our work presents an innovative photosynthetic strategy for oral tissue engineering and opens new avenues for addressing other hypoxia-related challenges.
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Affiliation(s)
- Jun Kang
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Ye Liang
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Junqing Liu
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Mingxin Hu
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Shulan Lin
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Jialin Zhong
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Chaogang Wang
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
| | - Qinglu Zeng
- Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Chengfei Zhang
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Cui X, Jiao J, Yang L, Wang Y, Jiang W, Yu T, Li M, Zhang H, Chao B, Wang Z, Wu M. Advanced tumor organoid bioprinting strategy for oncology research. Mater Today Bio 2024; 28:101198. [PMID: 39205873 PMCID: PMC11357813 DOI: 10.1016/j.mtbio.2024.101198] [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: 04/10/2024] [Revised: 07/14/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024] Open
Abstract
Bioprinting is a groundbreaking technology that enables precise distribution of cell-containing bioinks to construct organoid models that accurately reflect the characteristics of tumors in vivo. By incorporating different types of tumor cells into the bioink, the heterogeneity of tumors can be replicated, enabling studies to simulate real-life situations closely. Precise reproduction of the arrangement and interactions of tumor cells using bioprinting methods provides a more realistic representation of the tumor microenvironment. By mimicking the complexity of the tumor microenvironment, the growth patterns and diffusion of tumors can be demonstrated. This approach can also be used to evaluate the response of tumors to drugs, including drug permeability and cytotoxicity, and other characteristics. Therefore, organoid models can provide a more accurate oncology research and treatment simulation platform. This review summarizes the latest advancements in bioprinting to construct tumor organoid models. First, we describe the bioink used for tumor organoid model construction, followed by an introduction to various bioprinting methods for tumor model formation. Subsequently, we provide an overview of existing bioprinted tumor organoid models.
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Affiliation(s)
- Xiangran Cui
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Jianhang Jiao
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Lili Yang
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Yang Wang
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Weibo Jiang
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Tong Yu
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Mufeng Li
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Han Zhang
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Bo Chao
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
| | - Zhonghan Wang
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
- Orthopaedic Research Institute of Jilin Province, Changchun, 130041, PR China
| | - Minfei Wu
- Department of Orthopedics, The Second Hospital of Jilin University Changchun, 130041, PR China
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9
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Deo KA, Murali A, Tronolone JJ, Mandrona C, Lee HP, Rajput S, Hargett SE, Selahi A, Sun Y, Alge DL, Jain A, Gaharwar AK. Granular Biphasic Colloidal Hydrogels for 3D Bioprinting. Adv Healthc Mater 2024; 13:e2303810. [PMID: 38749006 DOI: 10.1002/adhm.202303810] [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: 11/01/2023] [Revised: 04/01/2024] [Indexed: 05/30/2024]
Abstract
Granular hydrogels composed of hydrogel microparticles are promising candidates for 3D bioprinting due to their ability to protect encapsulated cells. However, to achieve high print fidelity, hydrogel microparticles need to jam to exhibit shear-thinning characteristics, which is crucial for 3D printing. Unfortunately, this overpacking can significantly impact cell viability, thereby negating the primary advantage of using hydrogel microparticles to shield cells from shear forces. To overcome this challenge, a novel solution: a biphasic, granular colloidal bioink designed to optimize cell viability and printing fidelity is introduced. The biphasic ink consists of cell-laden polyethylene glycol (PEG) hydrogel microparticles embedded in a continuous gelatin methacryloyl (GelMA)-nanosilicate colloidal network. Here, it is demonstrated that this biphasic bioink offers outstanding rheological properties, print fidelity, and structural stability. Furthermore, its utility for engineering complex tissues with multiple cell types and heterogeneous microenvironments is demonstrated, by incorporating β-islet cells into the PEG microparticles and endothelial cells in the GelMA-nanosilicate colloidal network. Using this approach, it is possible to induce cell patterning, enhance vascularization, and direct cellular function. The proposed biphasic bioink holds significant potential for numerous emerging biomedical applications, including tissue engineering and disease modeling.
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Affiliation(s)
- Kaivalya A Deo
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Aparna Murali
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - James J Tronolone
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Cole Mandrona
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Hung Pang Lee
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Satyam Rajput
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Sarah E Hargett
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Amirali Selahi
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Yuxiang Sun
- Nutrition, College of Agriculture, Texas A&M University, College Station, TX, 77843, USA
| | - Daniel L Alge
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
- Material Science and Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Abhishek Jain
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
- Medical Physiology, School of Medicine, Texas A&M Health Science Center, Bryan, TX, USA
- Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, 77030, USA
| | - Akhilesh K Gaharwar
- Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
- Material Science and Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA
- Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, 77030, USA
- Interdisciplinary Graduate Program in Genetics & Genomics, Texas A&M University, College Station, TX, 77843, USA
- Center for Remote Health Technologies and Systems, Texas A&M University, College Station, TX, 77843, USA
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10
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Mancha S, Horan M, Pasachhe O, Keikhosravi A, Eliceiri KW, Matkowskyj KA, Notbohm J, Skala MC, Campagnola PJ. Multiphoton excited polymerized biomimetic models of collagen fiber morphology to study single cell and collective migration dynamics in pancreatic cancer. Acta Biomater 2024; 187:212-226. [PMID: 39182805 PMCID: PMC11446658 DOI: 10.1016/j.actbio.2024.08.026] [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: 04/29/2024] [Revised: 08/02/2024] [Accepted: 08/16/2024] [Indexed: 08/27/2024]
Abstract
The respective roles of aligned collagen fiber morphology found in the extracellular matrix (ECM) of pancreatic cancer patients and cellular migration dynamics have been gaining attention because of their connection with increased aggressive phenotypes and poor prognosis. To better understand how collagen fiber morphology influences cell-matrix interactions associated with metastasis, we used Second Harmonic Generation (SHG) images from patient biopsies with Pancreatic ductal adenocarcinoma (PDAC) as models to fabricate collagen scaffolds to investigate processes associated with motility. Using the PDAC BxPC-3 metastatic cell line, we investigated single and collective cell dynamics on scaffolds of varying collagen alignment. Collective or clustered cells grown on the scaffolds with the highest collagen fiber alignment had increased E-cadherin expression and larger focal adhesion sites compared to single cells, consistent with metastatic behavior. Analysis of single cell motility revealed that the dynamics were characterized by random walk on all substrates. However, examining collective motility over different time points showed that the migration was super-diffusive and enhanced on highly aligned fibers, whereas it was hindered and sub-diffusive on un-patterned substrates. This was further supported by the more elongated morphology observed in collectively migrating cells on aligned collagen fibers. Overall, this approach allows the decoupling of single and collective cell behavior as a function of collagen alignment and shows the relative importance of collective cell behavior as well as fiber morphology in PDAC metastasis. We suggest these scaffolds can be used for further investigations of PDAC cell biology. STATEMENT OF SIGNIFICANCE: Pancreatic ductal adenocarcinoma (PDAC) has a high mortality rate, where aligned collagen has been associated with poor prognosis. Biomimetic models representing this architecture are needed to understand complex cellular interactions. The SHG image-based models based on stromal collagen from human biopsies afford the measurements of cell morphology, cadherin and focal adhesion expression as well as detailed motility dynamics. Using a metastatic cell line, we decoupled the roles of single cell and collective cell behavior as well as that arising from aligned collagen. Our data suggests that metastatic characteristics are enhanced by increased collagen alignment and that collective cell behavior is more relevant to metastatic processes. These scaffolds provide new insight in this disease and can be a platform for further experiments such as testing drug efficacy.
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Affiliation(s)
- Sophie Mancha
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Meghan Horan
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | - Adib Keikhosravi
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Kevin W Eliceiri
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Morgridge Institute for Research, Madison, WI, USA
| | - Kristina A Matkowskyj
- Department of Pathology & Lab Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jacob Notbohm
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Melissa C Skala
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Morgridge Institute for Research, Madison, WI, USA.
| | - Paul J Campagnola
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
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11
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Yao K, Hong G, Yuan X, Kong W, Xia P, Li Y, Chen Y, Liu N, He J, Shi J, Hu Z, Zhou Y, Xie Z, He Y. 3D Printing of Tough Hydrogel Scaffolds with Functional Surface Structures for Tissue Regeneration. NANO-MICRO LETTERS 2024; 17:27. [PMID: 39342523 PMCID: PMC11439863 DOI: 10.1007/s40820-024-01524-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 09/01/2024] [Indexed: 10/01/2024]
Abstract
Hydrogel scaffolds have numerous potential applications in the tissue engineering field. However, tough hydrogel scaffolds implanted in vivo are seldom reported because it is difficult to balance biocompatibility and high mechanical properties. Inspired by Chinese ramen, we propose a universal fabricating method (printing-P, training-T, cross-linking-C, PTC & PCT) for tough hydrogel scaffolds to fill this gap. First, 3D printing fabricates a hydrogel scaffold with desired structures (P). Then, the scaffold could have extraordinarily high mechanical properties and functional surface structure by cycle mechanical training with salting-out assistance (T). Finally, the training results are fixed by photo-cross-linking processing (C). The tough gelatin hydrogel scaffolds exhibit excellent tensile strength of 6.66 MPa (622-fold untreated) and have excellent biocompatibility. Furthermore, this scaffold possesses functional surface structures from nanometer to micron to millimeter, which can efficiently induce directional cell growth. Interestingly, this strategy can produce bionic human tissue with mechanical properties of 10 kPa-10 MPa by changing the type of salt, and many hydrogels, such as gelatin and silk, could be improved with PTC or PCT strategies. Animal experiments show that this scaffold can effectively promote the new generation of muscle fibers, blood vessels, and nerves within 4 weeks, prompting the rapid regeneration of large-volume muscle loss injuries.
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Affiliation(s)
- Ke Yao
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Gaoying Hong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310027, People's Republic of China
| | - Ximin Yuan
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Weicheng Kong
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Pengcheng Xia
- Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Yuanrong Li
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yuewei Chen
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Nian Liu
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jing He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jue Shi
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310027, People's Republic of China
| | - Zihe Hu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310027, People's Republic of China
| | - Yanyan Zhou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310027, People's Republic of China
| | - Zhijian Xie
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310027, People's Republic of China.
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
- Liangzhu Laboratory, Zhejiang University, Hangzhou, 310027, People's Republic of China.
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
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12
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Yamada S, Al-Sharabi N, Torelli F, Volponi AA, Sandven L, Ueda M, Fristad I, Mustafa K. Harnessing the Antioxidative Potential of Dental Pulp Stem Cell-Conditioned Medium in Photopolymerized GelMA Hydrogels. Biomater Res 2024; 28:0084. [PMID: 39290361 PMCID: PMC11406670 DOI: 10.34133/bmr.0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 08/30/2024] [Indexed: 09/19/2024] Open
Abstract
Gelatin methacryloyl (GelMA) stands out for its biocompatibility, tunability, and functionality, being often selected as a scaffolding material. However, the biological modulations induced by its photocrosslinking process on mesenchymal stem cells as well as stress mitigation measures remain insufficiently explored. By using GelMA of Good Manufacturing Practice (GMP) grade, this study aimed (a) to achieve a comprehensive understanding of the biological effects of photocrosslinking process with a specific focus on oxidative stress and (b) to develop a strategy to mitigate the adverse effects by employing conditioned medium (CM) by dental pulp stem cells (DPSCs). Following photocrosslinking, pathways related to oxidative phosphorylation and DNA repair were enriched in the presence of DPSC-CM carrying various antioxidants such as peroxiredoxin (PRDX) 1-6 and superoxide dismutase type 1 (SOD1), while the control samples exhibited enrichment in inflammatory signaling pathways. Incorporating DPSC-CM into the hydrogel notably reduced the degree of cellular oxidation caused by photocrosslinking and stress responses, resulting in improved cell viability, growth, motility, and osteogenic differentiation, as well as fewer apoptotic and senescent cells compared to those without DPSC-CM. The deteriorated biocompatibility of freshly crosslinked GelMA hydrogel was confirmed by the disrupted vasculature of chorioallantoic membranes in chicken embryos after implantation, which was prevented by DPSC-CM. In conclusion, this study demonstrates the robust antioxidative effects of DPSC-CM, mitigating the negative effect of GelMA photocrosslinking processes.
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Affiliation(s)
- Shuntaro Yamada
- Center of Translational Oral Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Niyaz Al-Sharabi
- Center of Translational Oral Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Francesco Torelli
- Center of Translational Oral Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Ana Angelova Volponi
- Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Linda Sandven
- The Molecular Imaging Center, Department of Biomedicine, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Minoru Ueda
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Nagoya University, Nagoya, Japan
- Saiseiken Co. Ltd., Tokyo, Japan
| | - Inge Fristad
- Center of Translational Oral Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Kamal Mustafa
- Center of Translational Oral Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
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13
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Liu Y, Zhong W, Xing M. Low density methacrylated pea, corn, and tapioca starch covalent cryogels with excellent elasticity and water/oil absorption capacity. Carbohydr Polym 2024; 340:122234. [PMID: 38858015 DOI: 10.1016/j.carbpol.2024.122234] [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: 01/14/2024] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 06/12/2024]
Abstract
Porous starch materials are promising in several applications as renewable natural biomaterials. This study reports an approach combining methacrylation of starch and chemical crosslinked cryogelation to fabricate highly elastic macroporous starch (ST-MA) cryogels with impressed water/oil absorption capacity and wet thermal stability among starch based porous materials. Five different types of starch, including pea, normal corn, high amylose corn, tapioca, and waxy maize starch with different amylose content, have been studied. The methacrylation degree is not related with amylose content. All cryogels exhibited excellent compressive elasticity enduring 90 % deformation without failure and good robustness in cyclic tests. The ST-MA cryogels from pea starch exhibited the highest Young's modulus and compressive strength among five types of starch. These covalent cryogels exhibit high wet-thermal stability and enzymatic hydrolysis stability, while still are biodegradable. The dry ST-MA sponges (2 wt%) showed outstanding liquid absorption capacity, absorbing ~40 folds (g/g) of water or ~ 36 folds (g/g) of oil respectively. All types of starch have similar liquid absorption performance. This study provides a universal approach to fabricate highly elastic covalent starch macroporous materials with impressed liquid absorption capacity and outstanding stability, especially wet-thermal stability, and may expand their applications.
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Affiliation(s)
- Yuqing Liu
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Wen Zhong
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
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14
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Dogan E, Galifi CA, Cecen B, Shukla R, Wood TL, Miri AK. Extracellular matrix regulation of cell spheroid invasion in a 3D bioprinted solid tumor-on-a-chip. Acta Biomater 2024; 186:156-166. [PMID: 39097123 PMCID: PMC11390304 DOI: 10.1016/j.actbio.2024.07.040] [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: 03/12/2024] [Revised: 07/01/2024] [Accepted: 07/25/2024] [Indexed: 08/05/2024]
Abstract
Tumor organoids and tumors-on-chips can be built by placing patient-derived cells within an engineered extracellular matrix (ECM) for personalized medicine. The engineered ECM influences the tumor response, and understanding the ECM-tumor relationship accelerates translating tumors-on-chips into drug discovery and development. In this work, we tuned the physical and structural characteristics of ECM in a 3D bioprinted soft-tissue sarcoma microtissue. We formed cell spheroids at a controlled size and encapsulated them into our gelatin methacryloyl (GelMA)-based bioink to make perfusable hydrogel-based microfluidic chips. We then demonstrated the scalability and customization flexibility of our hydrogel-based chip via engineering tools. A multiscale physical and structural data analysis suggested a relationship between cell invasion response and bioink characteristics. Tumor cell invasive behavior and focal adhesion properties were observed in response to varying polymer network densities of the GelMA-based bioink. Immunostaining assays and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) helped assess the bioactivity of the microtissue and measure the cell invasion. The RT-qPCR data showed higher expressions of HIF-1α, CD44, and MMP2 genes in a lower polymer density, highlighting the correlation between bioink structural porosity, ECM stiffness, and tumor spheroid response. This work is the first step in modeling STS tumor invasiveness in hydrogel-based microfluidic chips. STATEMENT OF SIGNIFICANCE: We optimized an engineering protocol for making tumor spheroids at a controlled size, embedding spheroids into a gelatin-based matrix, and constructing a perfusable microfluidic device. A higher tumor invasion was observed in a low-stiffness matrix than a high-stiffness matrix. The physical characterizations revealed how the stiffness is controlled by the density of polymer chain networks and porosity. The biological assays revealed how the structural properties of the gelatin matrix and hypoxia in tumor progression impact cell invasion. This work can contribute to personalized medicine by making more effective, tailored cancer models.
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Affiliation(s)
- Elvan Dogan
- Department of Biomedical Engineering, Newark College of Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Christopher A Galifi
- Department of Pharmacology, Physiology, and Neuroscience and Center for Cell Signaling, Rutgers New Jersey Medical School, Newark, NJ 07103, USA
| | - Berivan Cecen
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA
| | - Roshni Shukla
- Department of Biomedical Engineering, Newark College of Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Teresa L Wood
- Department of Pharmacology, Physiology, and Neuroscience and Center for Cell Signaling, Rutgers New Jersey Medical School, Newark, NJ 07103, USA
| | - Amir K Miri
- Department of Biomedical Engineering, Newark College of Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; Department of Mechanical and Industrial Engineering, Newark College of Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
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15
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Gwon K, Dharmesh E, Nguyen KM, Schornack AMR, de Hoyos-Vega JM, Ceylan H, Stybayeva G, Peterson QP, Revzin A. Designing magnetic microcapsules for cultivation and differentiation of stem cell spheroids. MICROSYSTEMS & NANOENGINEERING 2024; 10:127. [PMID: 39261472 PMCID: PMC11390961 DOI: 10.1038/s41378-024-00747-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/03/2024] [Accepted: 06/05/2024] [Indexed: 09/13/2024]
Abstract
Human pluripotent stem cells (hPSCs) represent an excellent cell source for regenerative medicine and tissue engineering applications. However, there remains a need for robust and scalable differentiation of stem cells into functional adult tissues. In this paper, we sought to address this challenge by developing magnetic microcapsules carrying hPSC spheroids. A co-axial flow-focusing microfluidic device was employed to encapsulate stem cells in core-shell microcapsules that also contained iron oxide magnetic nanoparticles (MNPs). These microcapsules exhibited excellent response to an external magnetic field and could be held at a specific location. As a demonstration of utility, magnetic microcapsules were used for differentiating hPSC spheroids as suspension cultures in a stirred bioreactor. Compared to standard suspension cultures, magnetic microcapsules allowed for more efficient media change and produced improved differentiation outcomes. In the future, magnetic microcapsules may enable better and more scalable differentiation of hPSCs into adult cell types and may offer benefits for cell transplantation.
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Affiliation(s)
- Kihak Gwon
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA.
- Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu, Republic of Korea.
| | - Ether Dharmesh
- Department of Biomedical Engineering, Saint Louis University, St. Louis, MO, USA
| | - Kianna M Nguyen
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | | | - Jose M de Hoyos-Vega
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Hakan Ceylan
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Scottsdale, AZ, USA
| | - Gulnaz Stybayeva
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Quinn P Peterson
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Alexander Revzin
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA.
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16
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Shirk BD, Heichel DL, Eccles LE, Rodgers LI, Lateef AH, Burke KA, Stoppel WL. Modifying Naturally Occurring, Nonmammalian-Sourced Biopolymers for Biomedical Applications. ACS Biomater Sci Eng 2024. [PMID: 39259773 DOI: 10.1021/acsbiomaterials.4c00689] [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: 09/13/2024]
Abstract
Natural biopolymers have a rich history, with many uses across the fields of healthcare and medicine, including formulations for wound dressings, surgical implants, tissue culture substrates, and drug delivery vehicles. Yet, synthetic-based materials have been more successful in translation due to precise control and regulation achievable during manufacturing. However, there is a renewed interest in natural biopolymers, which offer a diverse landscape of architecture, sustainable sourcing, functional groups, and properties that synthetic counterparts cannot fully replicate as processing and sourcing of these materials has improved. Proteins and polysaccharides derived from various sources (crustaceans, plants, insects, etc.) are highlighted in this review. We discuss the common types of polysaccharide and protein biopolymers used in healthcare and medicine, highlighting methods and strategies to alter structures and intra- and interchain interactions to engineer specific functions, products, or materials. We focus on biopolymers obtained from natural, nonmammalian sources, including silk fibroins, alginates, chitosans, chitins, mucins, keratins, and resilins, while discussing strategies to improve upon their innate properties and sourcing standardization to expand their clinical uses and relevance. Emphasis will be placed on methods that preserve the structural integrity and native biological functions of the biopolymers and their makers. We will conclude by discussing the untapped potential of new technologies to manipulate native biopolymers while controlling their secondary and tertiary structures, offering a perspective on advancing biopolymer utility in novel applications within biomedical engineering, advanced manufacturing, and tissue engineering.
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Affiliation(s)
- Bryce D Shirk
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Danielle L Heichel
- Department of Chemical Engineering, University of Connecticut, Storrs, Connecticut 06269-3222, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Lauren E Eccles
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Liam I Rodgers
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Ali H Lateef
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Kelly A Burke
- Department of Chemical Engineering, University of Connecticut, Storrs, Connecticut 06269-3222, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Whitney L Stoppel
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
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17
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Wang H, Li J, Qin R, Guo F, Wang R, Bian Y, Chen H, Yuan H, Pan Y, Jin J, Wang Y, Du Y, Wu F. Porous Gelatin Methacrylate Gel Engineered by Freeze-Ultraviolet Promotes Osteogenesis and Angiogenesis. ACS Biomater Sci Eng 2024; 10:5764-5773. [PMID: 39190529 DOI: 10.1021/acsbiomaterials.4c00269] [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] [Indexed: 08/29/2024]
Abstract
Alveolar bone defect reconstruction is a common challenge in stomatology. To address this, a thermosensitive/photosensitive gelatin methacrylate (GelMA) gel was developed based on various air solubilities and light-curing technologies. The gel was synthesized by using a freeze-ultraviolet (FUV) method to form a porous and quickly (within 15 min) solidifying modified network structure. Unlike other gel scaffolds limited by complex preparation procedures and residual products, this FUV-GelMA gel shows favorable manufacturing ability, promising biocompatibility, and adjustable macroporous structures. The results from a rat model suggested that this gel scaffold creates a conducive microenvironment for mandible reconstruction and vascularization. In vitro experiments further confirmed that the FUV-GelMA gel promotes osteogenic differentiation of human bone marrow mesenchymal stem cells and angiogenesis of human umbilical vein endothelial cells. Investigation of the underlying mechanism focused on the p38 mitogen-activated protein kinase (MAPK) pathway. We found that SB203580, a specific inhibitor of p38 MAPK, abolished the therapeutic effects of the FUV-GelMA gel on osteogenesis and angiogenesis, both in vitro and in vivo. These findings introduced a novel approach for scaffold-based tissue regeneration in future clinical applications.
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Affiliation(s)
- Haoran Wang
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Oral and Maxillofacial Surgery, Zaozhuang Stomatological Hospital, Zaozhuang, Shandong 277100, China
| | - Jianfeng Li
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Ran Qin
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Fanyi Guo
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Ruyu Wang
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Yifeng Bian
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Hanbang Chen
- Department of Prosthodontics, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Hua Yuan
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Yongchu Pan
- Department of Orthodontic, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Jianliang Jin
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences; Key Laboratory for Aging & Disease; School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Yuli Wang
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Yifei Du
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Fan Wu
- Medical Basic Research Innovation Center for Cardiovascular and Cerebrovascular Diseases, Ministry of Education; International Joint Laboratory for Drug Target of Critical Illnesses; School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
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18
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Luo Y, Hu Z, Ni R, Xu R, Zhao J, Feng P, Zhu T, Chen Y, Yao J, Yao Y, Yang L, Zhang H, Zhu Y. Fabrication of 3D Biomimetic Smooth Muscle Using Magnetic Induction and Bioprinting for Tissue Regeneration. Biomater Res 2024; 28:0076. [PMID: 39253032 PMCID: PMC11382380 DOI: 10.34133/bmr.0076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/18/2024] [Accepted: 08/10/2024] [Indexed: 09/11/2024] Open
Abstract
Smooth muscles play a vital role in peristalsis, tissue constriction, and relaxation but lack adequate self-repair capability for addressing extensive muscle defects. Engineering scaffolds have been broadly proposed to repair the muscle tissue. However, efforts to date have shown that those engineered scaffolds focus on cell alignment in 2-dimension (2D) and fail to direct muscle cells to align in 3D area, which is irresolvable to remodel the muscle architecture and restore the muscle functions like contraction and relaxation. Herein, we introduced an iron oxide (Fe3O4) filament-embedded gelatin (Gel)-silk fibroin composite hydrogel in which the oriented Fe3O4 self-assembled and functioned as micro/nanoscale geometric cues to induce cell alignment growth. The hydrogel scaffold can be designed to fabricate aligned or anisotropic muscle by combining embedded 3D bioprinting with magnetic induction to accommodate special architectures of muscular tissues in the body. Particularly, the bioprinted muscle-like matrices effectively promote the self-organization of smooth muscle cells (SMCs) and the directional differentiation of bone marrow mesenchymal stem cells (BMSCs) into SMCs. This biomimetic muscle accelerated tissue regeneration, enhancing intercellular connectivity within the muscular tissue, and the deposition of fibronectin and collagen I. This work provides a novel approach for constructing engineered biomimetic muscles, holding significant promise for clinical treatment of muscle-related diseases in the future.
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Affiliation(s)
- Yang Luo
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Zeming Hu
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Renhao Ni
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Rong Xu
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Jianmin Zhao
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Peipei Feng
- Ningbo Institute of Innovation for Combined Medicine and Engineering, The Affiliated Lihuili Hospital of Ningbo University, Ningbo 315046, China
| | - Tong Zhu
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Yaoqi Chen
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Jie Yao
- The First Affiliated Hospital of Ningbo University, Ningbo 315010, China
- Research Institute of Smart Medicine and Biological Engineering, Ningbo University, Ningbo 315211, China
| | - Yudong Yao
- Health Science Center, Ningbo University, Ningbo 315211, China
- Research Institute of Smart Medicine and Biological Engineering, Ningbo University, Ningbo 315211, China
| | - Lu Yang
- The First Affiliated Hospital of Ningbo University, Ningbo 315010, China
| | - Hua Zhang
- Health Science Center, Ningbo University, Ningbo 315211, China
- Research Institute of Smart Medicine and Biological Engineering, Ningbo University, Ningbo 315211, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438, China
| | - Yabin Zhu
- Health Science Center, Ningbo University, Ningbo 315211, China
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19
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Ghasemzadeh-Hasankolaei M, Correia TR, Mano JF. Bioinstructive Liquefied Pockets in Hierarchical Hydrogels and Bioinks. Adv Healthc Mater 2024:e2400286. [PMID: 39235370 DOI: 10.1002/adhm.202400286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 08/09/2024] [Indexed: 09/06/2024]
Abstract
This study proposes a novel, versatile, and modular platform for constructing porous and heterogeneous microenvironments based on the embedding of liquefied-based compartments in hydrogel systems. Using a bottom-up approach, microgels carrying the necessary cargo components, including cells and microparticles, are combined with a hydrogel precursor to fabricate a hierarchical structured (HS) system. The HS system possesses three key features that can be fully independently controlled: I) liquefied pockets enabling free cellular mobility; II) surface modified microparticles facilitating 3D microtissue organization inside the liquefied pockets; III) at a larger scale, the pockets are jammed in the hydrogel, forming a macro-sized construct. After crosslinking, the embedded microgels undergo a liquefaction process, forming a porous structure that ensures high diffusion of small biomolecules and enables cells to move freely within their miniaturized compartmentalized volume. More importantly, this platform allows the creation of multimodular cellular microenvironments within a hydrogel with controlled macrostructures, while decoupling micro- and macroenvironments. As a proof of concept, the enhancement of cellular functions using the HS system by encapsulating human adipose-derived mesenchymal stem cells (hASCs) is successfully demonstrated. Finally, the potential application of this system as a hybrid bioink for bioprinting complex 3D structures is showcased.
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Affiliation(s)
| | - Tiago R Correia
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, 3810-193, Portugal
| | - João F Mano
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, 3810-193, Portugal
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20
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Rashad A, Gomez A, Gangrade A, Zehtabi F, Mandal K, Maity S, Ma C, Li B, Khademhosseini A, de Barros NR. Effect of viscosity of gelatin methacryloyl-based bioinks on bone cells. Biofabrication 2024; 16:045036. [PMID: 39121892 DOI: 10.1088/1758-5090/ad6d91] [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: 04/26/2024] [Accepted: 08/09/2024] [Indexed: 08/12/2024]
Abstract
The viscosity of gelatin methacryloyl (GelMA)-based bioinks generates shear stresses throughout the printing process that can affect cell integrity, reduce cell viability, cause morphological changes, and alter cell functionality. This study systematically investigated the impact of the viscosity of GelMA-gelatin bioinks on osteoblast-like cells in 2D and 3D culture conditions. Three bioinks with low, medium, and high viscosity prepared by supplementing a 5% GelMA solution with different concentrations of gelatin were evaluated. Cell responses were studied in a 2D environment after printing and incubation in non-cross-linked bioinks that caused the gelatin and GelMA to dissolve and release cells for attachment to tissue culture plates. The increased viscosity of the bioinks significantly affected cell area and aspect ratio. Cells printed using the bioink with medium viscosity exhibited greater metabolic activity and proliferation rate than those printed using the high viscosity bioink and even the unprinted control cells. Additionally, cells printed using the bioink with high viscosity demonstrated notably elevated expression levels of alkaline phosphatase and bone morphogenetic protein-2 genes. In the 3D condition, the printed cell-laden hydrogels were photo-cross-linked prior to incubation. The medium viscosity bioink supported greater cell proliferation compared to the high viscosity bioink. However, there were no significant differences in the expression of osteogenic markers between the medium and high viscosity bioinks. Therefore, the choice between medium and high viscosity bioinks should be based on the desired outcomes and objectives of the bone tissue engineering application. Furthermore, the bioprinting procedure with the medium viscosity bioink was used as an automated technique for efficiently seeding cells onto 3D printed porous titanium scaffolds for bone tissue engineering purposes.
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Affiliation(s)
- Ahmad Rashad
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
- Bioengineering Graduate Program, University of Notre Dame, South Bend, IN 46556, United States of America
- Department of Clinical Dentistry, University of Bergen, Bergen 5009, Norway
| | - Alejandro Gomez
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
- Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, United States of America
| | - Ankit Gangrade
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
| | - Fatemeh Zehtabi
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
| | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
| | - Surjendu Maity
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
| | - Changyu Ma
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
- Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, United States of America
| | - Bingbing Li
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
- Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, United States of America
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
| | - Natan Roberto de Barros
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 91367, United States of America
- National Laboratory of Bioscience (LNBio), National Center of Research in Energy and Materials (CNPEM), Campinas, Brazil
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21
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Shu F, Huang H, Xiao S, Xia Z, Zheng Y. Netrin-1 co-cross-linked hydrogel accelerates diabetic wound healing in situ by modulating macrophage heterogeneity and promoting angiogenesis. Bioact Mater 2024; 39:302-316. [PMID: 38827174 PMCID: PMC11143790 DOI: 10.1016/j.bioactmat.2024.04.019] [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: 01/20/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 06/04/2024] Open
Abstract
Diabetic wounds, characterized by prolonged inflammation and impaired vascularization, are a serious complication of diabetes. This study aimed to design a gelatin methacrylate (GelMA) hydrogel for the sustained release of netrin-1 and evaluate its potential as a scaffold to promote diabetic wound healing. The results showed that netrin-1 was highly expressed during the inflammation and proliferation phases of normal wounds, whereas it synchronously exhibited aberrantly low expression in diabetic wounds. Neutralization of netrin-1 inhibited normal wound healing, and the topical application of netrin-1 accelerated diabetic wound healing. Mechanistic studies demonstrated that netrin-1 regulated macrophage heterogeneity via the A2bR/STAT/PPARγ signaling pathway and promoted the function of endothelial cells, thus accelerating diabetic wound healing. These data suggest that netrin-1 is a potential therapeutic target for diabetic wounds.
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Affiliation(s)
- Futing Shu
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Hongchao Huang
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Shichu Xiao
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Zhaofan Xia
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, 200433, People's Republic of China
| | - Yongjun Zheng
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
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22
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Hong J, Zhu Z, Wang Z, Li J, Liu Z, Tan R, Hao Y, Cheng G. Annular Conductive Hydrogel-Mediated Wireless Electrical Stimulation for Augmenting Neurogenesis. Adv Healthc Mater 2024; 13:e2400624. [PMID: 38782037 DOI: 10.1002/adhm.202400624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/19/2024] [Indexed: 05/25/2024]
Abstract
Electrical stimulation (ES) has a remarkable capacity to regulate neuronal differentiation and neurogenesis in the treatment of various neurological diseases. However, wired devices connected to the stimulating electrode and the mechanical mismatch between conventional rigid electrodes and soft tissues restrict their motion and cause possible infections, thereby limiting their clinical utility. An approach integrating the advantages of wireless techniques and soft hydrogels provides new insights into ES-induced nerve regeneration. Herein, a flexible and implantable wireless ES-responsive electrode based on an annular gelatin methacrylate-polyaniline (Gel/Pani) hydrogel is fabricated and used as a secondary coil to achieve wireless ES via electromagnetic induction in the presence of a primary coil. The Gel/Pani hydrogels exhibit favorable biocompatibility, biodegradability, conductivity, and compression resistance. The annular electrode of the Gel/Pani conductive hydrogel (AECH) supports neural stem cell growth, while the applied wireless ES facilitates neuronal differentiation and the formation of functional neural networks in vitro. Furthermore, AECH is implanted in vivo in rats with ischemic stroke and the results reveal that AECH-mediated wireless ES significantly ameliorates brain impairment and neurological function by activating endogenous neurogenesis. This novel flexible hydrogel system addresses wireless stimulation and implantable technical challenges, holding great potential for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Jing Hong
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Anhui, 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu, 215123, China
| | - Zhanchi Zhu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Anhui, 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu, 215123, China
| | - Zhaojun Wang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Anhui, 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu, 215123, China
| | - Jiawei Li
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Anhui, 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu, 215123, China
| | - Zhongqing Liu
- College of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Rui Tan
- College of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Ying Hao
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Anhui, 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu, 215123, China
| | - Guosheng Cheng
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Anhui, 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu, 215123, China
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23
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Soliman BG, Chin IL, Li Y, Ishii M, Ho MH, Doan VK, Cox TR, Wang PY, Lindberg GCJ, Zhang YS, Woodfield TBF, Choi YS, Lim KS. Droplet-based microfluidics for engineering shape-controlled hydrogels with stiffness gradient. Biofabrication 2024; 16:045026. [PMID: 39121873 DOI: 10.1088/1758-5090/ad6d8e] [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: 03/10/2024] [Accepted: 08/09/2024] [Indexed: 08/12/2024]
Abstract
Current biofabrication strategies are limited in their ability to replicate native shape-to-function relationships, that are dependent on adequate biomimicry of macroscale shape as well as size and microscale spatial heterogeneity, within cell-laden hydrogels. In this study, a novel diffusion-based microfluidics platform is presented that meets these needs in a two-step process. In the first step, a hydrogel-precursor solution is dispersed into a continuous oil phase within the microfluidics tubing. By adjusting the dispersed and oil phase flow rates, the physical architecture of hydrogel-precursor phases can be adjusted to generate spherical and plug-like structures, as well as continuous meter-long hydrogel-precursor phases (up to 1.75 m). The second step involves the controlled introduction a small molecule-containing aqueous phase through a T-shaped tube connector to enable controlled small molecule diffusion across the interface of the aqueous phase and hydrogel-precursor. Application of this system is demonstrated by diffusing co-initiator sodium persulfate (SPS) into hydrogel-precursor solutions, where the controlled SPS diffusion into the hydrogel-precursor and subsequent photo-polymerization allows for the formation of unique radial stiffness patterns across the shape- and size-controlled hydrogels, as well as allowing the formation of hollow hydrogels with controllable internal architectures. Mesenchymal stromal cells are successfully encapsulated within hollow hydrogels and hydrogels containing radial stiffness gradient and found to respond to the heterogeneity in stiffness through the yes-associated protein mechano-regulator. Finally, breast cancer cells are found to phenotypically switch in response to stiffness gradients, causing a shift in their ability to aggregate, which may have implications for metastasis. The diffusion-based microfluidics thus finds application mimicking native shape-to-function relationship in the context of tissue engineering and provides a platform to further study the roles of micro- and macroscale architectural features that exist within native tissues.
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Affiliation(s)
- Bram G Soliman
- Light Activated Biomaterials (LAB) Group, University of Otago, Christchurch 8011, New Zealand
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, University of Otago, Christchurch 8011, New Zealand
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Ian L Chin
- School of Human Sciences, The University of Western Australia, Perth 6009, Australia
| | - Yiwei Li
- School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney 2006, Australia
| | - Melissa Ishii
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, University of Otago, Christchurch 8011, New Zealand
| | - Minh Hieu Ho
- School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney 2006, Australia
| | - Vinh Khanh Doan
- School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney 2006, Australia
| | - Thomas R Cox
- The Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Peng Yuan Wang
- Oujiang Laboratory, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang 32500, People's Republic of China
| | - Gabriella C J Lindberg
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, University of Otago, Christchurch 8011, New Zealand
- Phil and Penny Knight Campus for Accelerating Scientific Impact Department of Bioengineering, University of Oregon, Eugene, OR, United States of America
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, United States of America
| | - Tim B F Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, University of Otago, Christchurch 8011, New Zealand
| | - Yu Suk Choi
- School of Human Sciences, The University of Western Australia, Perth 6009, Australia
| | - Khoon S Lim
- Light Activated Biomaterials (LAB) Group, University of Otago, Christchurch 8011, New Zealand
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, University of Otago, Christchurch 8011, New Zealand
- School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney 2006, Australia
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24
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Inagaki NF, Oki Y, Ikeda S, Tulakarnwong S, Shinohara M, Inagaki FF, Ohta S, Kokudo N, Sakai Y, Ito T. Transplantation of pancreatic beta-cell spheroids in mice via non-swellable hydrogel microwells composed of poly(HEMA- co-GelMA). Biomater Sci 2024; 12:4354-4362. [PMID: 38967234 DOI: 10.1039/d4bm00295d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Pancreatic islet transplantation is an effective treatment for type I diabetes mellitus. However, many problems associated with pancreatic islet engraftment remain unresolved. In this study, we developed a hydrogel microwell device for islet implantation, fabricated by crosslinking gelatin-methacryloyl (GelMA) and 2-hydroxyethyl methacrylate (HEMA) in appropriate proportions. The fabricated hydrogel microwell device could be freeze-dried and restored by immersion in the culture medium at any time, allowing long-term storage and transport of the device for ready-to-use applications. In addition, due to its non-swelling properties, the shape of the wells of the device was maintained. Thus, the device allowed pancreatic β cell lines to form spheroids and increase insulin secretion. Intraperitoneal implantation of the β cell line-seeded GelMA/HEMA hydrogel microwell device reduced blood glucose levels in diabetic mice. In addition, they were easy to handle during transplantation and were removed from the transplant site without peritoneal adhesions or infiltration by inflammatory cells. These results suggest that the GelMA/HEMA hydrogel microwell device can go from spheroid and/or organoid fabrication to transplantation in a single step.
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Affiliation(s)
- Natsuko F Inagaki
- Department of Lipid Signaling, National Center for Global Health and Medicine, Tokyo, Japan
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan.
| | - Yuichiro Oki
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan.
| | - Shunsuke Ikeda
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Sarun Tulakarnwong
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Marie Shinohara
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
- Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
| | - Fuyuki F Inagaki
- Department of Surgery, National Center for Global Health and Medicine, Tokyo, Japan
| | - Seiichi Ohta
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan.
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
- Institute of Engineering Innovation, The University of Tokyo, Tokyo, Japan
| | - Norihiro Kokudo
- Department of Surgery, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yasuyuki Sakai
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan.
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Taichi Ito
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan.
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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25
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Dubey N, Rahimnejad M, Swanson WB, Xu J, de Ruijter M, Malda J, Squarize CH, Castilho RM, Bottino MC. Integration of Melt Electrowritten Polymeric Scaffolds and Bioprinting for Epithelial Healing via Localized Periostin Delivery. ACS Macro Lett 2024; 13:959-965. [PMID: 39024469 DOI: 10.1021/acsmacrolett.4c00240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Management of skin injuries imposes a substantial financial burden on patients and hospitals, leading to diminished quality of life. Periostin (rhOSF), an extracellular matrix component, regulates cell function, including a proliferative healing phase, representing a key protein to promote wound healing. Despite its proven efficacy in vitro, there is a lack of scaffolds that facilitate the in situ delivery of rhOSF. In addition, there is a need for a scaffold to not only support cell growth, but also to resist the mechanical forces involved in wound healing. In this work, we synthesized rhOSF-loaded mesoporous nanoparticles (MSNs) and incorporated them into a cell-laden gelatin methacryloyl (GelMA) ink that was bioprinted into melt electrowritten poly(ε-caprolactone) (PCL) microfibrous (MF-PCL) meshes to develop mechanically competent constructs. Diffraction light scattering (DLS) analysis showed a narrow nanoparticle size distribution with an average size of 82.7 ± 13.2 nm. The rhOSF-loaded hydrogels showed a steady and controlled release of rhOSF over 16 days at a daily dose of ∼40 ng/mL. Compared with blank MSNs, the incorporation of rhOSF markedly augmented cell proliferation, underscoring its contribution to cellular performance. Our findings suggest a promising approach to address challenges such as prolonged healing, offering a potential solution for developing robust, biocompatible, and cell-laden grafts for burn wound healing applications.
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Affiliation(s)
- Nileshkumar Dubey
- Faculty of Dentistry, National University of Singapore, 119077 Singapore
| | - Maedeh Rahimnejad
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - W Benton Swanson
- Department of Biologic and Materials Science, Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jinping Xu
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Mylène de Ruijter
- Regenerative Medicine Center Utrecht, 3584 Utrecht, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 Utrecht, The Netherlands
- Department of Orthopedics, University Medical Center Utrecht, 3584 Utrecht, The Netherlands
| | - Jos Malda
- Regenerative Medicine Center Utrecht, 3584 Utrecht, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 Utrecht, The Netherlands
- Department of Orthopedics, University Medical Center Utrecht, 3584 Utrecht, The Netherlands
| | - Cristiane H Squarize
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan Ann Arbor, Michigan 48109, United States
| | - Rogerio M Castilho
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan Ann Arbor, Michigan 48109, United States
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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26
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St Clair-Glover M, Finol-Urdaneta RK, Maddock M, Wallace E, Miellet S, Wallace G, Yue Z, Dottori M. Efficient fabrication of 3D bioprinted functional sensory neurons using an inducible Neurogenin-2 human pluripotent stem cell line. Biofabrication 2024; 16:045022. [PMID: 39084624 DOI: 10.1088/1758-5090/ad69c4] [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: 12/28/2023] [Accepted: 07/31/2024] [Indexed: 08/02/2024]
Abstract
Three-dimensional (3D) tissue models have gained recognition for their improved ability to mimic the native cell microenvironment compared to traditional two-dimensional models. This progress has been driven by advances in tissue-engineering technologies such as 3D bioprinting, a promising method for fabricating biomimetic living tissues. While bioprinting has succeeded in generating various tissues to date, creating neural tissue models remains challenging. In this context, we present an accelerated approach to fabricate 3D sensory neuron (SN) structures using a transgenic human pluripotent stem cell (hPSC)-line that contains an inducible Neurogenin-2 (NGN2) expression cassette. The NGN2 hPSC line was first differentiated to neural crest cell (NCC) progenitors, then incorporated into a cytocompatible gelatin methacryloyl-based bioink for 3D bioprinting. Upregulated NGN2 expression in the bioprinted NCCs resulted in induced SN (iSN) populations that exhibited specific cell markers, with 3D analysis revealing widespread neurite outgrowth through the scaffold volume. Calcium imaging demonstrated functional activity of iSNs, including membrane excitability properties and voltage-gated sodium channel (NaV) activity. This efficient approach to generate 3D bioprinted iSN structures streamlines the development of neural tissue models, useful for the study of neurodevelopment and disease states and offering translational potential.
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Affiliation(s)
- Mitchell St Clair-Glover
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
- School of Medical, Indigenous, and Health Sciences, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2522, Australia
| | - Rocio K Finol-Urdaneta
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
- School of Medical, Indigenous, and Health Sciences, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Marnie Maddock
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
- School of Medical, Indigenous, and Health Sciences, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Eileen Wallace
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
- School of Medical, Indigenous, and Health Sciences, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2522, Australia
| | - Sara Miellet
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
- School of Medical, Indigenous, and Health Sciences, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Gordon Wallace
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2522, Australia
| | - Zhilian Yue
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2522, Australia
| | - Mirella Dottori
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
- School of Medical, Indigenous, and Health Sciences, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2522, Australia
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27
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Chen X, Liu W, Su C, Shan J, Li X, Chai Y, Yu Y, Wen G. Multimodal effects of an extracellular matrix on cellular morphology, dynamics and functionality. J Mater Chem B 2024; 12:7946-7958. [PMID: 39041314 DOI: 10.1039/d4tb00360h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Articular cartilage defects can lead to pain and even disability in patients and have significant socioeconomic loss. Repairing articular cartilage defects remains a long-term challenge in medicine owing to the limited ability of cartilage to regenerate. At present, the treatment methods adopted in clinical practice have many limitations, thereby necessitating the rapid development of biomaterials. Among them, decellularized biomaterials have been particularly prominent, with numerous breakthroughs in research progress and translational applications. Although many studies show that decellularized cartilage biomaterials promote tissue regeneration, any differences in cellular morphology, dynamics, and functionality among various biomaterials upon comparison have not been reported. In this study, we prepared cartilage-derived extracellular matrix (cdECM) biomaterials with different bioactive contents and various physical properties to compare their effects on the morphology, dynamics and functionality of chondrocytes. This cellular multimodal analysis of the characteristics of cdECM biomaterials provided a theoretical basis for understanding the interactions between biomaterials and cells, thus laying an experimental foundation for the translation and application of decellularized cartilage biomaterials in the treatment of cartilage defects.
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Affiliation(s)
- Xin Chen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Wenhao Liu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Chi Su
- Deyang Hospital of Integrated Traditional Chinese and Western Medicine, Sichuan, 618000, China
| | - Jianyang Shan
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
| | - Xiang Li
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
| | - Yaling Yu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
- Institute of Microsurgery on Extremities, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Gen Wen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
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28
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Mendes MC, Pereira JA, Silva AS, Mano JF. Magneto-Enzymatic Microgels for Precise Hydrogel Sculpturing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2402988. [PMID: 39139015 DOI: 10.1002/adma.202402988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 07/15/2024] [Indexed: 08/15/2024]
Abstract
The inclusion of hollow channels in tissue-engineered hydrogels is crucial for mimicking the natural physiological conditions and facilitating the delivery of nutrients and oxygen to cells. Although bio-fabrication techniques provide diverse strategies to create these channels, many require sophisticated equipment and time-consuming protocols. Herein, collagenase, a degrading agent for methacrylated gelatin hydrogels, and magnetic nanoparticles (MNPs) are combined and processed into enzymatically active spherical structures using a straightforward oil bath emulsion methodology. The generated microgels are then used to microfabricate channels within biomimetic hydrogels via a novel sculpturing approach that relied on the precise coupling of protein-enzyme pairs (for controlled local degradation) and magnetic actuation (for directional control). Results show that the sculpting velocity can be tailored by adjusting the magnetic field intensity or concentration of MNPs within the microgels. Additionally, varying the magnetic field position or microgel size generated diverse trajectories and channels of different widths. This innovative technology improves the viability of encapsulated cells through enhanced medium transport, outperforming non-sculpted hydrogels and offering new perspectives for hydrogel vascularization and drug/biomolecule administration. Ultimately, this novel concept can help design fully controlled channels in hydrogels or soft materials, even those with complex tortuosity, in a single wireless top-down biocompatible step.
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Affiliation(s)
- Maria C Mendes
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - João A Pereira
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - Ana S Silva
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
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29
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Yu P, Sedlačík T, Parmentier L, Jerca FA, Jerca VV, Van Vlierberghe S, Leiske MN, Hoogenboom R. Degradable Cell-Adhesive Hybrid Hydrogels by Cross-Linking of Gelatin with Poly(2-isopropenyl-2-oxazoline). Biomacromolecules 2024; 25:5332-5342. [PMID: 39059021 DOI: 10.1021/acs.biomac.4c00743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
This study focused on the cross-linking of poly(2-isopropenyl-2-oxazoline) (PiPOx) with gelatin to obtain strong, degradable hybrid hydrogels with good cell adhesion. The molecular weight and concentration of PiPOx and the PiPOx-to-gelatin ratio were varied to adjust the mechanical and swelling properties of the hybrid hydrogels. The swelling degree of PiPOx-gelatin hydrogels in water ranged between 1260 and 810%, with the corresponding Young's compressive moduli ranging from 77 to 215 kPa. Rheological measurements demonstrated the mechanical stability of the hydrogels. The hydrogels exhibited substantial degradation in Dulbecco's phosphate-buffered saline (DPBS) and cell culture medium within several weeks, indicating their degradability and responsiveness. The cell adhesion assay with primary human foreskin fibroblasts revealed the hybrid hydrogels are noncytotoxic and support cell attachment and proliferation. These strong hydrogels thus show excellent potential as biomedical cell scaffolds, combining the tunability and strength of PiPOx hydrogels with gelatin's cell-interactive properties while the ester-containing cross-links provide tunable degradability.
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Affiliation(s)
- Peitao Yu
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
| | - Tomáš Sedlačík
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
| | - Laurens Parmentier
- Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
| | - Florica Adriana Jerca
- Smart Organic Materials Group, "Costin D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, 202B Splaiul Independentei, 060023 Bucharest, Romania
| | - Valentin Victor Jerca
- Smart Organic Materials Group, "Costin D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, 202B Splaiul Independentei, 060023 Bucharest, Romania
| | - Sandra Van Vlierberghe
- Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
| | - Meike N Leiske
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
- Macromolecular Chemistry, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
- Bavarian Polymer Institute, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
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30
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Yee YC, Mori T, Ito S, Taguchi T, Katayama Y. Impact of hydrophobic modification on biocompatibility of Alaska pollock gelatin microparticles. ANAL SCI 2024:10.1007/s44211-024-00643-2. [PMID: 39120821 DOI: 10.1007/s44211-024-00643-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Accepted: 07/28/2024] [Indexed: 08/10/2024]
Abstract
This study investigates the impact of hydrophobic modification on the immunogenicity, cytotoxicity, and inflammatory response of Alaska pollock gelatin (ApGltn) microparticles (MPs). Gelatin, known for its inherent biocompatibility, was modified with decyl group (C10) to explore potential alterations in its interaction with the immune system. Immunogenicity was evaluated through the measurement of material-specific IgM and IgG responses, indicating no significant increase post-modification. Cytotoxicity against Caco-2 cell lines and NF-κB-mediated LPS-induced inflammation were also assessed, revealing no exacerbation by the modified MPs. Furthermore, C10 modification with different types of linkage such as secondary amine and amide structure did not influence immune reactivity. These findings suggest that C10 modification maintains the non-immunogenicity and biocompatibility of gelatin MPs, supporting their potential use in biomedical applications.
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Affiliation(s)
- Ying Chuin Yee
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takeshi Mori
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Shima Ito
- Degree Programs in Pure and Applied Sciences, Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
- Biomaterials Field, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Tetsushi Taguchi
- Degree Programs in Pure and Applied Sciences, Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.
- Biomaterials Field, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
| | - Yoshiki Katayama
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
- Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
- Centre for Advanced Medicine Open Innovation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
- Department of Biomedical Engineering, Chung Yuan Christian University, 200 Chung Pei Rd., Chung Li, 32023, Taiwan, ROC.
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31
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Liu Y, Kamran R, Han X, Wang M, Li Q, Lai D, Naruse K, Takahashi K. Human heart-on-a-chip microphysiological system comprising endothelial cells, fibroblasts, and iPSC-derived cardiomyocytes. Sci Rep 2024; 14:18063. [PMID: 39117679 PMCID: PMC11310341 DOI: 10.1038/s41598-024-68275-0] [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: 05/09/2024] [Accepted: 07/22/2024] [Indexed: 08/10/2024] Open
Abstract
In recent years, research on organ-on-a-chip technology has been flourishing, particularly for drug screening and disease model development. Fibroblasts and vascular endothelial cells engage in crosstalk through paracrine signaling and direct cell-cell contact, which is essential for the normal development and function of the heart. Therefore, to faithfully recapitulate cardiac function, it is imperative to incorporate fibroblasts and vascular endothelial cells into a heart-on-a-chip model. Here, we report the development of a human heart-on-a-chip composed of induced pluripotent stem cell (iPSC)-derived cardiomyocytes, fibroblasts, and vascular endothelial cells. Vascular endothelial cells cultured on microfluidic channels responded to the flow of culture medium mimicking blood flow by orienting themselves parallel to the flow direction, akin to in vivo vascular alignment in response to blood flow. Furthermore, the flow of culture medium promoted integrity among vascular endothelial cells, as evidenced by CD31 staining and lower apparent permeability. The tri-culture condition of iPSC-derived cardiomyocytes, fibroblasts, and vascular endothelial cells resulted in higher expression of the ventricular cardiomyocyte marker IRX4 and increased contractility compared to the bi-culture condition with iPSC-derived cardiomyocytes and fibroblasts alone. Such tri-culture-derived cardiac tissues exhibited cardiac responses similar to in vivo hearts, including an increase in heart rate upon noradrenaline administration. In summary, we have achieved the development of a heart-on-a-chip composed of cardiomyocytes, fibroblasts, and vascular endothelial cells that mimics in vivo cardiac behavior.
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Affiliation(s)
- Yun Liu
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan
| | - Rumaisa Kamran
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan
| | - Xiaoxia Han
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan
| | - Mengxue Wang
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan
| | - Qiang Li
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan
| | - Daoyue Lai
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan
| | - Keiji Naruse
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan
| | - Ken Takahashi
- Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama City, 700-8558, Japan.
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32
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Vijayaraghavan R, Loganathan S, Valapa RB. Fabrication of GelMA - Agarose Based 3D Bioprinted Photocurable Hydrogel with In Vitro Cytocompatibility and Cells Mirroring Natural Keratocytes for Corneal Stromal Regeneration. Macromol Biosci 2024:e2400136. [PMID: 39096155 DOI: 10.1002/mabi.202400136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/26/2024] [Indexed: 08/05/2024]
Abstract
The complex anatomy of the cornea and the subsequent keratocyte-fibroblast transition have always made corneal stromal regeneration difficult. Recently, 3D printing has received considerable attention in terms of fabrication of scaffolds with precise dimension and pattern. In the current work, 3D printable polymer hydrogels made of GelMA/agarose are formulated and its rheological properties are evaluated. Despite the variation in agarose content, both the hydrogels exhibited G'>G'' modulus. A prototype for 3D stromal model is created using Solid Works software, mimicking the anatomy of an adult cornea. The fabrication of 3D-printed hydrogels is performed using pneumatic extrusion. The FTIR analysis speculated that the hydrogel is well crosslinked and established strong hydrogen bonding with each other, thus contributing to improved thermal and structural stability. The MTT analysis revealed a higher rate of cell proliferation on the hydrogels. The optical analysis carried out on the 14th day of incubation revealed that the hydrogels exhibit transparency matching with natural corneal stromal tissue. Specific protein marker expression confirmed the keratocyte phenotype and showed that the cells do not undergo terminal differentiation into stromal fibroblasts. The findings of this work point to the potential of GelMA/A hydrogels as a novel biomaterial for corneal stromal tissue engineering.
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Affiliation(s)
- Renuka Vijayaraghavan
- Electrochemical Process Engineering, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sravanthi Loganathan
- Electrochemical Process Engineering, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ravi Babu Valapa
- Electrochemical Process Engineering, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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33
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Zhu D, Huang MF, Xu A, Gao X, Huang YW, Phan TTT, Lu L, Chi TY, Dai Y, Pang LK, Gingold JA, Tu J, Huo Z, Bazer DA, Shoemaker R, Wang J, Ambrose CG, Shen J, Kameoka J, Zhao Z, Wang LL, Zhang Y, Zhao R, Lee DF. Systematic transcriptome profiling of hPSC-derived osteoblasts unveils CORIN's mastery in governing osteogenesis through CEBPD modulation. J Biol Chem 2024; 300:107494. [PMID: 38925326 PMCID: PMC11301355 DOI: 10.1016/j.jbc.2024.107494] [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: 01/23/2024] [Revised: 05/21/2024] [Accepted: 06/09/2024] [Indexed: 06/28/2024] Open
Abstract
The commitment of stem cells to differentiate into osteoblasts is a highly regulated and complex process that involves the coordination of extrinsic signals and intrinsic transcriptional machinery. While rodent osteoblastic differentiation has been extensively studied, research on human osteogenesis has been limited by cell sources and existing models. Here, we systematically dissect human pluripotent stem cell-derived osteoblasts to identify functional membrane proteins and their downstream transcriptional networks involved in human osteogenesis. Our results reveal an enrichment of type II transmembrane serine protease CORIN in humans but not rodent osteoblasts. Functional analyses demonstrated that CORIN depletion significantly impairs osteogenesis. Genome-wide chromatin immunoprecipitation enrichment and mechanistic studies show that p38 MAPK-mediated CCAAT enhancer binding protein delta (CEBPD) upregulation is required for CORIN-modulated osteogenesis. Contrastingly, the type I transmembrane heparan sulfate proteoglycan SDC1 enriched in mesenchymal stem cells exerts a negative regulatory effect on osteogenesis through a similar mechanism. Chromatin immunoprecipitation-seq, bulk and single-cell transcriptomes, and functional validations indicated that CEBPD plays a critical role in controlling osteogenesis. In summary, our findings uncover previously unrecognized CORIN-mediated CEBPD transcriptomic networks in driving human osteoblast lineage commitment.
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Affiliation(s)
- Dandan Zhu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Mo-Fan Huang
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA; The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - An Xu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Xueqin Gao
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA; Linda and Mitch Hart Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Yu-Wen Huang
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Trinh T T Phan
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Linchao Lu
- Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Ting-Yen Chi
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas, USA
| | - Yulin Dai
- Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Lon Kai Pang
- Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Julian A Gingold
- Department of Obstetrics & Gynecology and Women's Health, Einstein/Montefiore Medical Center, Bronx, New York, USA
| | - Jian Tu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Zijun Huo
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Danielle A Bazer
- Department of Neurology, Renaissance School of Medicine at Stony Brook University, Stony Brook, New York, USA
| | - Rachel Shoemaker
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA; The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - Jun Wang
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, Texas, USA; Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Catherine G Ambrose
- Department of Orthopedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Jingnan Shen
- Department of Musculoskeletal Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Jun Kameoka
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas, USA; Department of Electrical and Computer Engineering, Texas A&M University, College Station, College Station, Texas, USA
| | - Zhongming Zhao
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, Texas, USA; Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Lisa L Wang
- Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Yang Zhang
- College of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong, China.
| | - Ruiying Zhao
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
| | - Dung-Fang Lee
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA; The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, Texas, USA; Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, Texas, USA; Center for Stem Cell and Regenerative Medicine, The Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
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Liao J, Timoshenko AB, Cordova DJ, Astudillo Potes MD, Gaihre B, Liu X, Elder BD, Lu L, Tilton M. Propelling Minimally Invasive Tissue Regeneration With Next-Era Injectable Pre-Formed Scaffolds. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400700. [PMID: 38842622 DOI: 10.1002/adma.202400700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 05/12/2024] [Indexed: 06/07/2024]
Abstract
The growing aging population, with its associated chronic diseases, underscores the urgency for effective tissue regeneration strategies. Biomaterials play a pivotal role in the realm of tissue reconstruction and regeneration, with a distinct shift toward minimally invasive (MI) treatments. This transition, fueled by engineered biomaterials, steers away from invasive surgical procedures to embrace approaches offering reduced trauma, accelerated recovery, and cost-effectiveness. In the realm of MI tissue repair and cargo delivery, various techniques are explored. While in situ polymerization is prominent, it is not without its challenges. This narrative review explores diverse biomaterials, fabrication methods, and biofunctionalization for injectable pre-formed scaffolds, focusing on their unique advantages. The injectable pre-formed scaffolds, exhibiting compressibility, controlled injection, and maintained mechanical integrity, emerge as promising alternative solutions to in situ polymerization challenges. The conclusion of this review emphasizes the importance of interdisciplinary design facilitated by synergizing fields of materials science, advanced 3D biomanufacturing, mechanobiological studies, and innovative approaches for effective MI tissue regeneration.
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Affiliation(s)
- Junhan Liao
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Anastasia B Timoshenko
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Domenic J Cordova
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | | | - Bipin Gaihre
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
| | - Xifeng Liu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
| | - Benjamin D Elder
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
| | - Maryam Tilton
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
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35
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Van Damme L, Blondeel P, Van Vlierberghe S. Reconstructing Curves: A Bottom-Up Approach toward Adipose Tissue Regeneration with Recombinant Biomaterials. Macromol Biosci 2024; 24:e2300466. [PMID: 38704814 DOI: 10.1002/mabi.202300466] [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: 10/17/2023] [Revised: 03/06/2024] [Indexed: 05/07/2024]
Abstract
The potential of recombinant materials in the field of adipose tissue engineering (ATE) is investigated using a bottom-up tissue engineering (TE) approach. This study explores the synthesis of different photo-crosslinkable gelatin derivatives, including both natural and recombinant materials, with a particular emphasis on chain growth and step growth polymerization. Gelatin type B (Gel-B) and a recombinant collagen peptide (RCPhC1) are used as starting materials. The gel fraction and mass swelling properties of 2D hydrogel films are evaluated, revealing high gel fractions exceeding 94% and high mass swelling ratios >15. In vitro experiments with encapsulated adipose-derived stem cells (ASCs) indicate viable cells (>85%) throughout the experiment with the RCPhC1-based hydrogels showing a higher number of stretched ASCs. Triglyceride assays show the enhanced differentiation potential of RCPhC1 materials. Moreover, the secretome analysis reveal the production of adipose tissue-specific proteins including adiponectin, adipsin, lipocalin-2/NGAL, and PAL-1. RCPhC1-based materials exhibit higher levels of adiponectin and adipsin production, indicating successful differentiation into the adipogenic lineage. Overall, this study highlights the potential of recombinant materials for ATE applications, providing insights into their physico-chemical properties, mechanical strength, and cellular interactions.
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Affiliation(s)
- Lana Van Damme
- Ghent University, Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry (CMaC) - Department of Organic and Macromolecular Chemistry, Krijgslaan 281 S4-Bis, Ghent, 9000, Belgium
- Ghent University, Department of Plastic & Reconstructive Surgery, Corneel Heymanslaan 10 2K12, Ghent, 9000, Belgium
- 4Tissue BV, Technologiepark-Zwijnaarde 48, Ghent, 9052, Belgium
| | - Phillip Blondeel
- Ghent University, Department of Plastic & Reconstructive Surgery, Corneel Heymanslaan 10 2K12, Ghent, 9000, Belgium
- 4Tissue BV, Technologiepark-Zwijnaarde 48, Ghent, 9052, Belgium
| | - Sandra Van Vlierberghe
- Ghent University, Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry (CMaC) - Department of Organic and Macromolecular Chemistry, Krijgslaan 281 S4-Bis, Ghent, 9000, Belgium
- 4Tissue BV, Technologiepark-Zwijnaarde 48, Ghent, 9052, Belgium
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36
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Valente K, Boice GN, Polglase C, Belli RG, Bourque E, Suleman A, Brolo A. Synthesis of Gelatin Methacryloyl Analogs and Their Use in the Fabrication of pH-Responsive Microspheres. Pharmaceutics 2024; 16:1016. [PMID: 39204361 PMCID: PMC11360800 DOI: 10.3390/pharmaceutics16081016] [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: 06/19/2024] [Revised: 07/11/2024] [Accepted: 07/27/2024] [Indexed: 09/04/2024] Open
Abstract
pH-responsive hydrogels have numerous applications in tissue engineering, drug delivery systems, and diagnostics. Gelatin methacryloyl (GelMA) is a biocompatible, semi-synthetic polymer prepared from gelatin. When combined with aqueous solvents, GelMA forms hydrogels that have extensive applications in biomedical engineering. GelMA can be produced with different degrees of methacryloyl substitution; however, the synthesis of this polymer has not been tuned towards producing selectively modified materials for single-component pH-responsive hydrogels. In this work, we have explored two different synthetic routes targeting different gelatin functional groups (amine, hydroxyl, and/or carboxyl) to produce two GelMA analogs: gelatin A methacryloyl glycerylester (polymer A) and gelatin B methacrylamide (polymer B). Polymers A and B were used to fabricate pH-responsive hydrogel microspheres in a flow-focusing microfluidic device. At neutral pH, polymer A and B microspheres displayed an average diameter of ~40 µm. At pH 6, microspheres from polymer A showed a swelling ratio of 159.1 ± 11.5%, while at pH 10, a 288.6 ± 11.6% swelling ratio was recorded for polymer B particles.
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Affiliation(s)
- Karolina Valente
- VoxCell BioInnovation Inc., Victoria, BC V8T 5L2, Canada; (K.V.); (G.N.B.); (C.P.)
| | - Geneviève N. Boice
- VoxCell BioInnovation Inc., Victoria, BC V8T 5L2, Canada; (K.V.); (G.N.B.); (C.P.)
| | - Cameron Polglase
- VoxCell BioInnovation Inc., Victoria, BC V8T 5L2, Canada; (K.V.); (G.N.B.); (C.P.)
| | - Roman G. Belli
- Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada; (R.G.B.); (E.B.)
| | - Elaina Bourque
- Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada; (R.G.B.); (E.B.)
| | - Afzal Suleman
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada;
| | - Alexandre Brolo
- Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada; (R.G.B.); (E.B.)
- Centre for Advanced Materials and Related Technology, University of Victoria, Victoria, BC V8P 5C2, Canada
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Salisbury E, Rawlings TM, Efstathiou S, Tryfonos M, Makwana K, Fitzgerald HC, Gargett CE, Cameron NR, Haddleton DM, Brosens JJ, Eissa AM. Photo-Cross-linked Gelatin Methacryloyl Hydrogels Enable the Growth of Primary Human Endometrial Stromal Cells and Epithelial Gland Organoids. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39140-39152. [PMID: 39022819 PMCID: PMC11299152 DOI: 10.1021/acsami.4c08763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/08/2024] [Accepted: 07/08/2024] [Indexed: 07/20/2024]
Abstract
In vitro three-dimensional (3D) models are better able to replicate the complexity of real organs and tissues than 2D monolayer models. The human endometrium, the inner lining of the uterus, undergoes complex changes during the menstrual cycle and pregnancy. These changes occur in response to steroid hormone fluctuations and elicit crosstalk between the epithelial and stromal cell compartments, and dysregulations are associated with a variety of pregnancy disorders. Despite the importance of the endometrium in embryo implantation and pregnancy establishment, there is a lack of in vitro models that recapitulate tissue structure and function and as such a growing demand for extracellular matrix hydrogels that can support 3D cell culture. To be physiologically relevant, an in vitro model requires mechanical and biochemical cues that mimic those of the ECM found in the native tissue. We report a semisynthetic gelatin methacryloyl (GelMA) hydrogel that combines the bioactive properties of natural hydrogels with the tunability and reproducibility of synthetic materials. We then describe a simple protocol whereby cells can quickly be encapsulated in GelMA hydrogels. We investigate the suitability of GelMA hydrogel to support the development of an endometrial model by culturing the main endometrial cell types: stromal cells and epithelial cells. We also demonstrate how the mechanical and biochemical properties of GelMA hydrogels can be tailored to support the growth and maintenance of epithelial gland organoids that emerge upon 3D culturing of primary endometrial epithelial progenitor cells in a defined chemical medium. We furthermore demonstrate the ability of GelMA hydrogels to support the viability of stromal cells and their function measured by monitoring decidualization in response to steroid hormones. This study describes the first steps toward the development of a hydrogel matrix-based model that recapitulates the structure and function of the native endometrium and could support applications in understanding reproductive failure.
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Affiliation(s)
- Emma Salisbury
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Thomas M. Rawlings
- Division
of Biomedical Sciences, Reproductive Health Unit, Clinical Science
Research Laboratories, Warwick Medical School, University of Warwick
and Tommy’s National Centre for Miscarriage Research, University
Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, U.K.
| | | | - Maria Tryfonos
- Division
of Biomedical Sciences, Reproductive Health Unit, Clinical Science
Research Laboratories, Warwick Medical School, University of Warwick
and Tommy’s National Centre for Miscarriage Research, University
Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, U.K.
| | - Komal Makwana
- Division
of Biomedical Sciences, Reproductive Health Unit, Clinical Science
Research Laboratories, Warwick Medical School, University of Warwick
and Tommy’s National Centre for Miscarriage Research, University
Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, U.K.
| | - Harriet C. Fitzgerald
- The
Ritchie Centre, Hudson Institute of Medical Research, Clayton VIC 3168, Australia
- Department
of Obstetrics and Gynaecology, Monash University, Clayton VIC 3168, Australia
| | - Caroline E. Gargett
- The
Ritchie Centre, Hudson Institute of Medical Research, Clayton VIC 3168, Australia
- Department
of Obstetrics and Gynaecology, Monash University, Clayton VIC 3168, Australia
| | - Neil R. Cameron
- Department
of Materials Science and Engineering, Monash
University, Clayton, Victoria 3800, Australia
- School of
Engineering, University of Warwick, Coventry CV4 7AL, U.K.
| | | | - Jan J. Brosens
- Division
of Biomedical Sciences, Reproductive Health Unit, Clinical Science
Research Laboratories, Warwick Medical School, University of Warwick
and Tommy’s National Centre for Miscarriage Research, University
Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, U.K.
| | - Ahmed M. Eissa
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
- Department
of Polymers, Chemical Industries Research Division, National Research
Centre, El Bohouth St.
33, Dokki, Cairo Giza 12622, Egypt
- School
of Life Sciences, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, U.K.
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Yu L, Bennett CJ, Lin CH, Yan S, Yang J. Scaffold design considerations for peripheral nerve regeneration. J Neural Eng 2024; 21:041001. [PMID: 38996412 DOI: 10.1088/1741-2552/ad628d] [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: 01/26/2024] [Accepted: 07/12/2024] [Indexed: 07/14/2024]
Abstract
Peripheral nerve injury (PNI) represents a serious clinical and public health problem due to its high incurrence and poor spontaneous recovery. Compared to autograft, which is still the best current practice for long-gap peripheral nerve defects in clinics, the use of polymer-based biodegradable nerve guidance conduits (NGCs) has been gaining momentum as an alternative to guide the repair of severe PNI without the need of secondary surgery and donor nerve tissue. However, simple hollow cylindrical tubes can barely outperform autograft in terms of the regenerative efficiency especially in critical sized PNI. With the rapid development of tissue engineering technology and materials science, various functionalized NGCs have emerged to enhance nerve regeneration over the past decades. From the aspect of scaffold design considerations, with a specific focus on biodegradable polymers, this review aims to summarize the recent advances in NGCs by addressing the onerous demands of biomaterial selections, structural designs, and manufacturing techniques that contributes to the biocompatibility, degradation rate, mechanical properties, drug encapsulation and release efficiency, immunomodulation, angiogenesis, and the overall nerve regeneration potential of NGCs. In addition, several commercially available NGCs along with their regulation pathways and clinical applications are compared and discussed. Lastly, we discuss the current challenges and future directions attempting to provide inspiration for the future design of ideal NGCs that can completely cure long-gap peripheral nerve defects.
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Affiliation(s)
- Le Yu
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, United States of America
| | - Carly Jane Bennett
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, United States of America
| | - Chung-Hsun Lin
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, United States of America
| | - Su Yan
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, United States of America
| | - Jian Yang
- Biomedical Engineering Program, Westlake University, Hangzhou, Zhejiang 310030, People's Republic of China
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang 310030, People's Republic of China
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Kriuchkovskaia VA, Eames EK, Riggins RB, Harley BAC. Acquired Temozolomide Resistance Instructs Patterns of Glioblastoma Behavior in Gelatin Hydrogels. Adv Healthc Mater 2024:e2400779. [PMID: 39030879 DOI: 10.1002/adhm.202400779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 06/26/2024] [Indexed: 07/22/2024]
Abstract
Acquired drug resistance in glioblastoma (GBM) presents a major clinical challenge and is a key factor contributing to abysmal prognosis, with less than 15 months median overall survival. Aggressive chemotherapy with the frontline therapeutic, temozolomide (TMZ), ultimately fails to kill residual highly invasive tumor cells after surgical resection and radiotherapy. Here, a 3D engineered model of acquired TMZ resistance is reported using two isogenically matched sets of GBM cell lines encapsulated in gelatin methacrylol hydrogels. Response of TMZ-resistant versus TMZ-sensitive GBM cell lines within the gelatin-based extracellular matrix platform is benchmarked and drug response at physiologically relevant TMZ concentrations is further validated. The changes in drug sensitivity, cell invasion, and matrix-remodeling cytokine production are shown as the result of acquired TMZ resistance. This platform lays the foundation for future investigations targeting key elements of the GBM tumor microenvironment to combat GBM's devastating impact by advancing the understanding of GBM progression and treatment response to guide the development of novel treatment strategies.
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Affiliation(s)
- Victoria A Kriuchkovskaia
- Department of Chemical & Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Ela K Eames
- Department of Chemical & Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Rebecca B Riggins
- Department of Oncology, Lombardi Comprehensive Cancer Center, University Medical Center, Washington, DC, 20007, USA
| | - Brendan A C Harley
- Department of Chemical & Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
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Salih T, Caputo M, Ghorbel MT. Recent Advances in Hydrogel-Based 3D Bioprinting and Its Potential Application in the Treatment of Congenital Heart Disease. Biomolecules 2024; 14:861. [PMID: 39062575 PMCID: PMC11274841 DOI: 10.3390/biom14070861] [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: 05/15/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
Congenital heart disease (CHD) is the most common birth defect, requiring invasive surgery often before a child's first birthday. Current materials used during CHD surgery lack the ability to grow, remodel, and regenerate. To solve those limitations, 3D bioprinting is an emerging tool with the capability to create tailored constructs based on patients' own imaging data with the ability to grow and remodel once implanted in children with CHD. It has the potential to integrate multiple bioinks with several cell types and biomolecules within 3D-bioprinted constructs that exhibit good structural fidelity, stability, and mechanical integrity. This review gives an overview of CHD and recent advancements in 3D bioprinting technologies with potential use in the treatment of CHD. Moreover, the selection of appropriate biomaterials based on their chemical, physical, and biological properties that are further manipulated to suit their application are also discussed. An introduction to bioink formulations composed of various biomaterials with emphasis on multiple cell types and biomolecules is briefly overviewed. Vasculogenesis and angiogenesis of prefabricated 3D-bioprinted structures and novel 4D printing technology are also summarized. Finally, we discuss several restrictions and our perspective on future directions in 3D bioprinting technologies in the treatment of CHD.
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Affiliation(s)
- Tasneem Salih
- Bristol Heart Institute, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK; (T.S.); (M.C.)
| | - Massimo Caputo
- Bristol Heart Institute, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK; (T.S.); (M.C.)
- Cardiac Surgery, University Hospitals Bristol, NHS Foundation Trust, Bristol BS2 8HW, UK
| | - Mohamed T. Ghorbel
- Bristol Heart Institute, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK; (T.S.); (M.C.)
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41
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Wu X, Zang R, Qiu Y, Yang N, Liu M, Wei S, Xu X, Diao Y. Self-Assembly of Rhein and Matrine Nanoparticles for Enhanced Wound Healing. Molecules 2024; 29:3326. [PMID: 39064904 PMCID: PMC11279319 DOI: 10.3390/molecules29143326] [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: 06/12/2024] [Revised: 07/04/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Carrier-free self-assembly has gradually shifted the focus of research on natural products, which effectively improve the bioavailability and the drug-loading rate. However, in spite of the existing studies, the development of self-assembled natural phytochemicals that possess pharmacological effects still has scope for further exploration and enhancement. Herein, a nano-delivery system was fabricated through the direct self-assembly of Rhein and Matrine and was identified as a self-assembled Rhein-Matrine nanoparticles (RM NPs). The morphology of RM NPs was characterized by TEM. The molecular mechanisms of self-assembly were explored using FT-IR, 1H NMR, and molecular dynamics simulation analysis. Gelatin methacryloyl (GelMA) hydrogel was used as a drug carrier for controlled release and targeted delivery of RM NPs. The potential wound repair properties of RM NPs were evaluated on a skin wound-healing model. TEM and dynamic light scattering study demonstrated that the RM NPs were close to spherical, and the average size was approximately 75 nm. 1H NMR of RM NPs demonstrated strong and weak changes in the interaction energies during self-assembly. Further molecular dynamics simulation analysis predicted the self-assembly behavior. An in vivo skin wound-healing model demonstrated that RM NPs present better protection effect against skin damages. Taken together, RM NPs are a new self-assembly system; this may provide new directions for natural product applications.
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Affiliation(s)
| | | | | | | | | | | | | | - Yong Diao
- School of Medicine, Huaqiao University, Quanzhou 362021, China; (X.W.); (R.Z.); (Y.Q.); (N.Y.); (M.L.); (S.W.); (X.X.)
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42
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Lee W, Xu C, Fu H, Ploch M, D’Souza S, Lustig S, Long X, Hong Y, Dai G. 3D Bioprinting Highly Elastic PEG-PCL-DA Hydrogel for Soft Tissue Fabrication and Biomechanical Stimulation. ADVANCED FUNCTIONAL MATERIALS 2024; 34:2313942. [PMID: 39380942 PMCID: PMC11458153 DOI: 10.1002/adfm.202313942] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Indexed: 10/10/2024]
Abstract
3-D bioprinting is a promising technology to fabricate custom geometries for tissue engineering. However, most bioprintable hydrogels are weak and fragile, difficult to handle and cannot mimetic the mechanical behaviors of the native soft elastic tissues. We have developed a visible light crosslinked, single-network, elastic and biocompatible hydrogel system based on an acrylated triblock copolymer of poly(ethylene glycol) PEG and polycaprolactone (PCL) (PEG-PCL-DA). To enable its application in bioprinting of soft tissues, we have modified the hydrogel system on its printability and biodegradability. Furthermore, we hypothesize that this elastic material can better transmit pulsatile forces to cells, leading to enhanced cellular response under mechanical stimulation. This central hypothesis was tested using vascular conduits with smooth muscle cells (SMCs) cultured under pulsatile forces in a custom-made bioreactor. The results showed that vascular conduits made of PEG-PCL-DA hydrogel faithfully recapitulate the rapid stretch and recoil under the pulsatile pressure from 1 to 3 Hz frequency, which induced a contractile SMC phenotype, consistently upregulated the core contractile transcription factors. In summary, our work demonstrates the potential of elastic hydrogel for 3D bioprinting of soft tissues by fine tuning the printability, biodegradability, while possess robust elastic property suitable for manual handling and biomechanical stimulation.
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Affiliation(s)
- Wenhan Lee
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA
| | - Cancan Xu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Huikang Fu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Michael Ploch
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Sean D’Souza
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA
| | - Steve Lustig
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Xiaochun Long
- Augusta University, Medical College of Georgia, Augusta, GA 30912, USA
| | - Yi Hong
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Guohao Dai
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA
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43
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Murphy CA, Serafin A, Collins MN. Development of 3D Printable Gelatin Methacryloyl/Chondroitin Sulfate/Hyaluronic Acid Hydrogels as Implantable Scaffolds. Polymers (Basel) 2024; 16:1958. [PMID: 39065275 PMCID: PMC11281044 DOI: 10.3390/polym16141958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024] Open
Abstract
The development of biomaterials tailored for various tissue engineering applications has been increasingly researched in recent years; however, stimulating cells to synthesise the extracellular matrix (ECM) is still a significant challenge. In this study, we investigate the use of ECM-like hydrogel materials composed of Gelatin methacryloyl (GelMA) and glycosaminoglycans (GAG), such as hyaluronic acid (HA) and chondroitin sulphate (CS), to provide a biomimetic environment for tissue repair. These hydrogels are fully characterised in terms of physico-chemical properties, including compression, swelling behaviour, rheological behaviour and via 3D printing trials. Furthermore, porous scaffolds were developed through freeze drying, producing a scaffold morphology that better promotes cell proliferation, as shown by in vitro analysis with fibroblast cells. We show that after cell seeding, freeze-dried hydrogels resulted in significantly greater amounts of DNA by day 7 compared to the GelMA hydrogel. Furthermore, freeze-dried constructs containing HA or HA/CS were found to have a significantly higher metabolic activity than GelMA alone.
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Affiliation(s)
- Caroline A. Murphy
- Stokes Laboratories, Bernal Institute, School of Engineering, University of Limerick, V94 T9PX Limerick, Ireland; (C.A.M.); (A.S.)
| | - Aleksandra Serafin
- Stokes Laboratories, Bernal Institute, School of Engineering, University of Limerick, V94 T9PX Limerick, Ireland; (C.A.M.); (A.S.)
- Health Research Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Maurice N. Collins
- Stokes Laboratories, Bernal Institute, School of Engineering, University of Limerick, V94 T9PX Limerick, Ireland; (C.A.M.); (A.S.)
- Health Research Institute, University of Limerick, V94 T9PX Limerick, Ireland
- SFI Centre for Advanced Materials and BioEngineering Research, D02 PN40 Dublin, Ireland
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Huang T, Zeng Y, Li C, Zhou Z, Xu J, Wang L, Yu DG, Wang K. Application and Development of Electrospun Nanofiber Scaffolds for Bone Tissue Engineering. ACS Biomater Sci Eng 2024; 10:4114-4144. [PMID: 38830819 DOI: 10.1021/acsbiomaterials.4c00028] [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] [Indexed: 06/05/2024]
Abstract
Nanofiber scaffolds have gained significant attention in the field of bone tissue engineering. Electrospinning, a straightforward and efficient technique for producing nanofibers, has been extensively researched. When used in bone tissue engineering scaffolds, electrospun nanofibers with suitable surface properties promote new bone tissue growth and enhance cell adhesion. Recent advancements in electrospinning technology have provided innovative approaches for scaffold fabrication in bone tissue engineering. This review comprehensively examines the utilization of electrospun nanofibers in bone tissue engineering scaffolds and evaluates the relevant literature. The review begins by presenting the fundamental principles and methodologies of electrospinning. It then discusses various materials used in the production of electrospun nanofiber scaffolds for bone tissue engineering, including natural and synthetic polymers, as well as certain inorganic materials. The challenges associated with these materials are also described. The review focuses on novel electrospinning techniques for scaffold construction in bone tissue engineering, such as multilayer nanofibers, multifluid electrospinning, and the integration of electrospinning with other methods. Recent advancements in electrospinning technology have enabled the fabrication of precisely aligned nanofiber scaffolds with nanoscale architectures. These innovative methods also facilitate the fabrication of biomimetic structures, wherein bioactive substances can be incorporated and released in a controlled manner for drug delivery purposes. Moreover, they address issues encountered with traditional electrospun nanofibers, such as mechanical characteristics and biocompatibility. Consequently, the development and implementation of novel electrospinning technologies have revolutionized scaffold fabrication for bone tissue engineering.
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Affiliation(s)
- Tianyue Huang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - YuE Zeng
- Department of Neurology, RuiJin Hospital Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Chaofei Li
- Department of General Surgery, RuiJin Hospital Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhengqing Zhou
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Jie Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Lean Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Ke Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
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45
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Zhang H, Li L, Wang S, Sun X, Luo C, Hou B. Construction of dentin-on-a-chip based on microfluidic technology and tissue engineering. J Dent 2024; 146:105028. [PMID: 38719135 DOI: 10.1016/j.jdent.2024.105028] [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: 02/05/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/19/2024] Open
Abstract
AIM Three-dimensional (3D) cell culture systems perform better in resembling tissue or organism structures compared with traditional 2D models. Organs-on-chips (OoCs) are becoming more efficient 3D models. This study aimed to create a novel simplified dentin-on-a-chip using microfluidic chip technology and tissue engineering for screening dental materials. METHODOLOGY A microfluidic device with three channels was designed for creating 3D dental tissue constructs using stem cells from the apical papilla (SCAP) and gelatin methacrylate (GelMA). The study investigated the effect of varying cell densities and GelMA concentrations on the layer features formed within the microfluidic chip. Cell viability and distribution were evaluated through live/dead staining and nuclei/F-actin staining. The osteo/odontogenic potential was assessed through ALP staining and Alizarin red staining. The impact of GelMA concentrations (5 %, 10 %) on the osteo/odontogenic differentiation trajectory of SCAP was also studied. RESULTS The 3D tissue constructs maintained high viability and favorable spreading within the microfluidic chip for 3-7 days. A cell seeding density of 2 × 104 cells/μL was found to be the most optimal choice, ensuring favorable cell proliferation and even distribution. GelMA concentrations of 5 % and 10 % proved to be most effective for promoting cell growth and uniform distribution. Within the 5 % GelMA group, SCAP demonstrated higher osteo/odontogenic differentiation than that in the 10 % GelMA group. CONCLUSION In 3D culture, GelMA concentration was found to regulate the osteo/odontogenic differentiation of SCAP. The study recommends a seeding density of 2 × 104 cells/μL of SCAP within 5 % GelMA for constructing simplified dentin-on-a-chip. CLINICAL SIGNIFICANCE This study built up the 3D culture protocol, and induced odontogenic differentiation of SCAP, thus forming the simplified dentin-on-a-chip and paving the way to be used as a well-defined biological model for regenerative endodontics. It may serve as a potential testing platform for cell differentiation.
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Affiliation(s)
- Hexuan Zhang
- Center for Microscope Enhanced Dentistry, School of Stomatology, Capital Medical University, Beijing 100162, PR China; Department of Endodontics and Operative Dentistry, School of Stomatology, Capital Medical University, Beijing 100050, PR China
| | - Lingjun Li
- Wenzhou Institute University of Chinese Academy of Sciences, Wenzhou 325001, PR China.
| | - Shujing Wang
- Wenzhou Institute University of Chinese Academy of Sciences, Wenzhou 325001, PR China
| | - Xiaoqiang Sun
- Department of Endodontics and Operative Dentistry, School of Stomatology, Capital Medical University, Beijing 100050, PR China
| | - Chunxiong Luo
- Wenzhou Institute University of Chinese Academy of Sciences, Wenzhou 325001, PR China; The State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, PR China.
| | - Benxiang Hou
- Center for Microscope Enhanced Dentistry, School of Stomatology, Capital Medical University, Beijing 100162, PR China.
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Margot AM, Engels A, Sittinger M, Dehne T, Hemmati-Sadeghi S. Quantitatively measuring the cytotoxicity of viscous hydrogels with direct cell sampling in a micro scale format "MicroDrop" and its comparison to CCK8. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2024; 35:34. [PMID: 38900233 PMCID: PMC11189981 DOI: 10.1007/s10856-024-06800-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/15/2024] [Indexed: 06/21/2024]
Abstract
Tissue engineering holds promise for developing therapeutic applications using viscous materials e.g. hydrogels. However, assessing the cytotoxicity of such materials with conventional assays can be challenging due to non-specific interactions. To address this, we optimized a live/dead staining method for quantitative evaluation and compared it with the conventional CCK8 assay. Our MicroDrop method involved seeding droplets containing 5000 cells in 10 µl medium on 12-well plates. After allowing them to adhere for 4 h, various viscous samples were applied to the cells and measurements were conducted using a fluorescence microscope immediately and at daily intervals up to 72 h. A sodium dodecyl sulfate (SDS) dilution series compared the MicroDrop with the CCK8 assay. The findings revealed a cell-type specific pattern for 10 mg/ml hyaluronic acid (HA), wherein MC3T3-E1 cells maintained 95% viability until 72 h, while L929 cells experienced a gradual decline to 17%. 2 mg/ml HA exhibited consistent viability above 90% across all time points and cell lines. Similarly, fibrin demonstrated 90% viability across dilutions and time points, except for undiluted samples showing a decrease from 85% to 20%. Gelatin-methacrylol sustained viability above 70% across all time points at both 5% and 10% concentrations. The comparison of the SDS dilution series between viability (MicroDrop) and metabolic activity (CCK8) assay showed a correlation coefficient of 0.95. The study validates the feasibility of the established assay, providing researchers with an efficient tool for assessing cytotoxicity in viscous materials. Additionally, it holds the potential to yield more precise data on well-known hydrogels.
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Affiliation(s)
- Anna Marie Margot
- Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology & Clinical Immunology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Andreas Engels
- Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology & Clinical Immunology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Michael Sittinger
- Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology & Clinical Immunology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Charitéplatz 1, 10117, Berlin, Germany
| | - Tilo Dehne
- Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology & Clinical Immunology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Shabnam Hemmati-Sadeghi
- Tissue Engineering Laboratory, Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology & Clinical Immunology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
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47
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Soliman BG, Nguyen AK, Gooding JJ, Kilian KA. Advancing Synthetic Hydrogels through Nature-Inspired Materials Chemistry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2404235. [PMID: 38896849 DOI: 10.1002/adma.202404235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/25/2024] [Indexed: 06/21/2024]
Abstract
Synthetic extracellular matrix (ECM) mimics that can recapitulate the complex biochemical and mechanical nature of native tissues are needed for advanced models of development and disease. Biomedical research has heavily relied on the use of animal-derived biomaterials, which is now impeding their translational potential and convoluting the biological insights gleaned from in vitro tissue models. Natural hydrogels have long served as a convenient and effective cell culture tool, but advances in materials chemistry and fabrication techniques now present promising new avenues for creating xenogenic-free ECM substitutes appropriate for organotypic models and microphysiological systems. However, significant challenges remain in creating synthetic matrices that can approximate the structural sophistication, biochemical complexity, and dynamic functionality of native tissues. This review summarizes key properties of the native ECM, and discusses recent approaches used to systematically decouple and tune these properties in synthetic matrices. The importance of dynamic ECM mechanics, such as viscoelasticity and matrix plasticity, is also discussed, particularly within the context of organoid and engineered tissue matrices. Emerging design strategies to mimic these dynamic mechanical properties are reviewed, such as multi-network hydrogels, supramolecular chemistry, and hydrogels assembled from biological monomers.
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Affiliation(s)
- Bram G Soliman
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales Sydney, Sydney, NSW, 2052, Australia
| | - Ashley K Nguyen
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales Sydney, Sydney, NSW, 2052, Australia
| | - J Justin Gooding
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales Sydney, Sydney, NSW, 2052, Australia
| | - Kristopher A Kilian
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales Sydney, Sydney, NSW, 2052, Australia
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
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Pramanik S, Alhomrani M, Alamri AS, Alsanie WF, Nainwal P, Kimothi V, Deepak A, Sargsyan AS. Unveiling the versatility of gelatin methacryloyl hydrogels: a comprehensive journey into biomedical applications. Biomed Mater 2024; 19:042008. [PMID: 38768611 DOI: 10.1088/1748-605x/ad4df7] [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: 02/20/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
Gelatin methacryloyl (GelMA) hydrogels have gained significant recognition as versatile biomaterials in the biomedical domain. GelMA hydrogels emulate vital characteristics of the innate extracellular matrix by integrating cell-adhering and matrix metalloproteinase-responsive peptide motifs. These features enable cellular proliferation and spreading within GelMA-based hydrogel scaffolds. Moreover, GelMA displays flexibility in processing, as it experiences crosslinking when exposed to light irradiation, supporting the development of hydrogels with adjustable mechanical characteristics. The drug delivery landscape has been reshaped by GelMA hydrogels, offering a favorable platform for the controlled and sustained release of therapeutic actives. The tunable physicochemical characteristics of GelMA enable precise modulation of the kinetics of drug release, ensuring optimal therapeutic effectiveness. In tissue engineering, GelMA hydrogels perform an essential role in the design of the scaffold, providing a biomimetic environment conducive to cell adhesion, proliferation, and differentiation. Incorporating GelMA in three-dimensional printing further improves its applicability in drug delivery and developing complicated tissue constructs with spatial precision. Wound healing applications showcase GelMA hydrogels as bioactive dressings, fostering a conducive microenvironment for tissue regeneration. The inherent biocompatibility and tunable mechanical characteristics of GelMA provide its efficiency in the closure of wounds and tissue repair. GelMA hydrogels stand at the forefront of biomedical innovation, offering a versatile platform for addressing diverse challenges in drug delivery, tissue engineering, and wound healing. This review provides a comprehensive overview, fostering an in-depth understanding of GelMA hydrogel's potential impact on progressing biomedical sciences.
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Affiliation(s)
- Sheersha Pramanik
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Majid Alhomrani
- Department of Clinical Laboratory Sciences, The faculty of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Abdulhakeem S Alamri
- Department of Clinical Laboratory Sciences, The faculty of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Walaa F Alsanie
- Department of Clinical Laboratory Sciences, The faculty of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Pankaj Nainwal
- School of Pharmacy, Graphic Era Hill University, Dehradun 248001, India
| | - Vishwadeepak Kimothi
- Himalayan Institute of Pharmacy and Research, Rajawala, Dehradun, Uttrakhand, India
| | - A Deepak
- Saveetha Institute of Medical and Technical Sciences, Saveetha School of Engineering, Chennai, Tamil Nadu 600128, India
| | - Armen S Sargsyan
- Scientific and Production Center 'Armbiotechnology' NAS RA, 14 Gyurjyan Str., Yerevan 0056, Armenia
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49
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Pazhouhnia Z, Noori A, Farzin A, Khoshmaram K, Hoseinpour M, Ai J, Ebrahimi M, Lotfibakhshaiesh N. 3D-bioprinted GelMA/gelatin/amniotic membrane extract (AME) scaffold loaded with keratinocytes, fibroblasts, and endothelial cells for skin tissue engineering. Sci Rep 2024; 14:12670. [PMID: 38830883 PMCID: PMC11148016 DOI: 10.1038/s41598-024-62926-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 05/22/2024] [Indexed: 06/05/2024] Open
Abstract
Gelatin-methacryloyl (GelMA) is a highly adaptable biomaterial extensively utilized in skin regeneration applications. However, it is frequently imperative to enhance its physical and biological qualities by including supplementary substances in its composition. The purpose of this study was to fabricate and characterize a bi-layered GelMA-gelatin scaffold using 3D bioprinting. The upper section of the scaffold was encompassed with keratinocytes to simulate the epidermis, while the lower section included fibroblasts and HUVEC cells to mimic the dermis. A further step involved the addition of amniotic membrane extract (AME) to the scaffold in order to promote angiogenesis. The incorporation of gelatin into GelMA was found to enhance its stability and mechanical qualities. While the Alamar blue test demonstrated that a high concentration of GelMA (20%) resulted in a decrease in cell viability, the live/dead cell staining revealed that incorporation of AME increased the quantity of viable HUVECs. Further, gelatin upregulated the expression of KRT10 in keratinocytes and VIM in fibroblasts. Additionally, the histological staining results demonstrated the formation of well-defined skin layers and the creation of extracellular matrix (ECM) in GelMA/gelatin hydrogels during a 14-day culture period. Our study showed that a 3D-bioprinted composite scaffold comprising GelMA, gelatin, and AME can be used to regenerate skin tissues.
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Affiliation(s)
- Zahra Pazhouhnia
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
- AstraBionics Research Network (ARN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Alireza Noori
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Farzin
- Material Engineering Department, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran
| | - Keyvan Khoshmaram
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, 1417935840, Iran
| | - Mahdieh Hoseinpour
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Jafar Ai
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Marzieh Ebrahimi
- Department of Stem Cells and Developmental Biology, Cell Sciences Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Nasrin Lotfibakhshaiesh
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Regenerative Medicine Group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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50
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Wang X, Wang M, Xu Y, Yin J, Hu J. A 3D-printable gelatin/alginate/ε-poly-l-lysine hydrogel scaffold to enable porcine muscle stem cells expansion and differentiation for cultured meat development. Int J Biol Macromol 2024; 271:131980. [PMID: 38821790 DOI: 10.1016/j.ijbiomac.2024.131980] [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: 11/29/2023] [Revised: 04/25/2024] [Accepted: 04/28/2024] [Indexed: 06/02/2024]
Abstract
The mass proliferation of seed cells and imitation of meat structures remain challenging for cell-cultured meat production. With excellent biocompatibility, high water content and porosity, hydrogels are frequently-studied materials for anchorage-dependent cell scaffolds in biotechnology applications. Herein, a scaffold based on gelatin/alginate/ε-Poly-l-lysine (GAL) hydrogel is developed for skeletal muscle cells, which has a great prospect in cell-cultured meat production. In this work, the hydrogel GAL-4:1, composed of gelatin (5 %, w/v), alginate (5 %, w/v) and ε-Poly-l-lysine (molar ratio vs. alginate: 4:1) is selected as cell scaffold based on Young's modulus of 11.29 ± 1.94 kPa, satisfactory shear-thinning property and suitable porous organized structure. The commercially available C2C12 mouse skeletal myoblasts and porcine muscle stem cells (PMuSCs), are cultured in the 3D-printed scaffold. The cells show strong ability of attachment, proliferation and differentiation after induction, showing high biocompatibility. Furthermore, the cellular bioprinting is performed with GAL-4:1 hydrogel and freshly extracted PMuSCs. The extracted PMuSCs exhibit high viability and display early myogenesis (desmin) on the 3D scaffold, suggesting the great potential of GAL hydrogel as 3D cellular constructs scaffolds. Overall, we develop a novel GAL hydrogel as a 3D-printed bioactive platform for cultured meat research.
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Affiliation(s)
- Xiang Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, PR China
| | - Meiling Wang
- Wuxi School of Medicine, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, PR China
| | - Yiqiang Xu
- Wuxi School of Medicine, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, PR China
| | - Jian Yin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, PR China.
| | - Jing Hu
- Wuxi School of Medicine, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, PR China.
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