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Crook BS, Cullen MM, Pidgeon TS. The Role of Tissue Engineering and Three-Dimensional-Filled Conduits in Bridging Nerve Gaps: A Review of Recent Advancements. JOURNAL OF HAND SURGERY GLOBAL ONLINE 2024; 6:700-704. [PMID: 39381400 PMCID: PMC11456632 DOI: 10.1016/j.jhsg.2024.01.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/20/2024] [Indexed: 10/10/2024] Open
Abstract
Tissue-engineered nerve guidance conduits (NGCs) are an area of research interest and investment. Currently, two separate three-dimensional, filled NGCs have Food and Drug Administration approval in the management of nerve gaps up to 3 cm in length, with more on the horizon. Future NGC options will leverage increasingly intricate designs to mimic the natural biology and architecture of native nerve tissue. To enhance the development of next-generation NGCs, experimental protocols and models should be standardized. For the NGCs currently on the market, more clinical data and randomized comparative studies are needed.
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Affiliation(s)
- Bryan S. Crook
- Department of Orthopaedic Surgery, Duke University Hospital, Durham, NC
| | - Mark M. Cullen
- Department of Orthopaedic Surgery, Duke University Hospital, Durham, NC
| | - Tyler S. Pidgeon
- Department of Orthopaedic Surgery, Duke University Hospital, Durham, NC
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2
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Smadi BM, Shekouhi R, Azizi A, Chim H. Development of Biomaterials for Addressing Upper Extremity Peripheral Nerve Gaps. JOURNAL OF HAND SURGERY GLOBAL ONLINE 2024; 6:711-717. [PMID: 39381386 PMCID: PMC11456663 DOI: 10.1016/j.jhsg.2024.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/16/2024] [Indexed: 10/10/2024] Open
Abstract
Peripheral nerve injuries within the upper extremities can lead to impaired function and reduced quality of life. Although autografts have traditionally served as the primary therapeutic approach to bridge nerve gaps, these present challenges related to donor site morbidity. This review delves into the realm of biomaterials tailored for addressing nerve gaps. Biomaterials, whether natural or synthetically derived, offer the potential not only to act as scaffolds for nerve regeneration but also to be enhanced with growth factors and agents that promote nerve recovery. The historical progression of these biomaterials as well as their current applications, advantages, inherent challenges, and future impact in the arena of regenerative medicine are discussed. By providing a comprehensive overview, we aim to shed light on the transformative potential of biomaterials in peripheral nerve repair and the path toward refining their efficacy in clinical settings.
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Affiliation(s)
- Bassam M. Smadi
- J Crayton Pruitt Department of Biomedical Engineering, University of Florida, Gainesville, FL
- Nanoscience Institute for Medical and Engineering Technology (NIMET), University of Florida, Gainesville, FL
- College of Medicine, University of Florida, Gainesville, FL
| | - Ramin Shekouhi
- Division of Plastic & Reconstructive Surgery, Department of Surgery, University of Florida College of Medicine, Gainesville, FL
| | - Armina Azizi
- Division of Plastic & Reconstructive Surgery, Department of Surgery, University of Florida College of Medicine, Gainesville, FL
| | - Harvey Chim
- Division of Plastic & Reconstructive Surgery, Department of Surgery, University of Florida College of Medicine, Gainesville, FL
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3
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Ban S, Lee H, Chen J, Kim HS, Hu Y, Cho SJ, Yeo WH. Recent advances in implantable sensors and electronics using printable materials for advanced healthcare. Biosens Bioelectron 2024; 257:116302. [PMID: 38648705 DOI: 10.1016/j.bios.2024.116302] [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: 02/09/2024] [Revised: 03/20/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
This review article focuses on the recent printing technological progress in healthcare, underscoring the significant potential of implantable devices across diverse applications. Printing technologies have widespread use in developing health monitoring devices, diagnostic systems, and surgical devices. Recent years have witnessed remarkable progress in fabricating low-profile implantable devices, driven by advancements in printing technologies and nanomaterials. The importance of implantable biosensors and bioelectronics is highlighted, specifically exploring printing tools using bio-printable inks for practical applications, including a detailed examination of fabrication processes and essential parameters. This review also justifies the need for mechanical and electrical compatibility between bioelectronics and biological tissues. In addition to technological aspects, this article delves into the importance of appropriate packaging methods to enhance implantable devices' performance, compatibility, and longevity, which are made possible by integrating cutting-edge printing technology. Collectively, we aim to shed light on the holistic landscape of implantable biosensors and bioelectronics, showcasing their evolving role in advancing healthcare through innovative printing technologies.
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Affiliation(s)
- Seunghyeb Ban
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30024, USA; IEN Center for Wearable Intelligent Systems and Healthcare at the Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Haran Lee
- Department of Mechanical Engineering, Chungnam National University, 99 Daehak-Ro, Yuseong-Gu, Daejeon, 34134, Republic of Korea
| | - Jiehao Chen
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30024, USA
| | - Hee-Seok Kim
- School of Engineering and Technology, University of Washington Tacoma, Tacoma, WA, 98195, USA
| | - Yuhang Hu
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30024, USA; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Seong J Cho
- Department of Mechanical Engineering, Chungnam National University, 99 Daehak-Ro, Yuseong-Gu, Daejeon, 34134, Republic of Korea.
| | - Woon-Hong Yeo
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30024, USA; IEN Center for Wearable Intelligent Systems and Healthcare at the Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech and Emory University School of Medicine, Atlanta, GA, 30332, USA; Parker H. Petit Institute for Bioengineering and Biosciences, Institute for Materials, Institute for Robotics and Intelligent Machines, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
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4
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Crabtree JR, Mulenga CM, Tran K, Feinberg K, Santerre JP, Borschel GH. Biohacking Nerve Repair: Novel Biomaterials, Local Drug Delivery, Electrical Stimulation, and Allografts to Aid Surgical Repair. Bioengineering (Basel) 2024; 11:776. [PMID: 39199733 PMCID: PMC11352148 DOI: 10.3390/bioengineering11080776] [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: 06/13/2024] [Revised: 07/15/2024] [Accepted: 07/26/2024] [Indexed: 09/01/2024] Open
Abstract
The regenerative capacity of the peripheral nervous system is limited, and peripheral nerve injuries often result in incomplete healing and poor outcomes even after repair. Transection injuries that induce a nerve gap necessitate microsurgical intervention; however, even the current gold standard of repair, autologous nerve graft, frequently results in poor functional recovery. Several interventions have been developed to augment the surgical repair of peripheral nerves, and the application of functional biomaterials, local delivery of bioactive substances, electrical stimulation, and allografts are among the most promising approaches to enhance innate healing across a nerve gap. Biocompatible polymers with optimized degradation rates, topographic features, and other functions provided by their composition have been incorporated into novel nerve conduits (NCs). Many of these allow for the delivery of drugs, neurotrophic factors, and whole cells locally to nerve repair sites, mitigating adverse effects that limit their systemic use. The electrical stimulation of repaired nerves in the perioperative period has shown benefits to healing and recovery in human trials, and novel biomaterials to enhance these effects show promise in preclinical models. The use of acellular nerve allografts (ANAs) circumvents the morbidity of donor nerve harvest necessitated by the use of autografts, and improvements in tissue-processing techniques may allow for more readily available and cost-effective options. Each of these interventions aid in neural regeneration after repair when applied independently, and their differing forms, benefits, and methods of application present ample opportunity for synergistic effects when applied in combination.
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Affiliation(s)
- Jordan R. Crabtree
- Division of Plastic Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Chilando M. Mulenga
- Division of Plastic Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Khoa Tran
- Division of Plastic Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Konstantin Feinberg
- Division of Plastic Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - J. Paul Santerre
- Institute of Biomedical Engineering, University of Toronto, 164 College St Room 407, Toronto, ON M5S 3G9, Canada
| | - Gregory H. Borschel
- Division of Plastic Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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5
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Zennifer A, Chellappan DR, Chinnaswamy P, Subramanian A, Sundaramurthi D, Sethuraman S. Efficacy of 3D printed anatomically equivalent thermoplastic polyurethane guide conduits in promoting the regeneration of critical-sized peripheral nerve defects. Biofabrication 2024; 16:045015. [PMID: 38968935 DOI: 10.1088/1758-5090/ad5fbe] [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: 12/20/2023] [Accepted: 07/05/2024] [Indexed: 07/07/2024]
Abstract
Three-dimensional (3D) printing is an emerging tool for creating patient-specific tissue constructs analogous to the native tissue microarchitecture. In this study, anatomically equivalent 3D nerve conduits were developed using thermoplastic polyurethane (TPU) by combining reverse engineering and material extrusion (i.e. fused deposition modeling) technique. Printing parameters were optimized to fabricate nerve-equivalent TPU constructs. The TPU constructs printed with different infill densities supported the adhesion, proliferation, and gene expression of neuronal cells. Subcutaneous implantation of the TPU constructs for three months in rats showed neovascularization with negligible local tissue inflammatory reactions and was classified as a non-irritant biomaterial as per ISO 10993-6. To performin vivoefficacy studies, nerve conduits equivalent to rat's sciatic nerve were fabricated and bridged in a 10 mm sciatic nerve transection model. After four months of implantation, the sensorimotor function and histological assessments revealed that the 3D printed TPU conduits promoted the regeneration in critical-sized peripheral nerve defects equivalent to autografts. This study proved that TPU-based 3D printed nerve guidance conduits can be created to replicate the complicated features of natural nerves that can promote the regeneration of peripheral nerve defects and also show the potential to be extended to several other tissues for regenerative medicine applications.
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Affiliation(s)
- Allen Zennifer
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - David Raj Chellappan
- Central Animal Facility, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Prabu Chinnaswamy
- Department of Veterinary Pathology, Veterinary College and Research Institute, Orathanadu, Tamil Nadu 614 625, India
| | - Anuradha Subramanian
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
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6
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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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7
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Zahid MJ, Mavani P, Awuah WA, Alabdulrahman M, Punukollu R, Kundu A, Mago A, Maher K, Adebusoye FT, Khan TN. Sculpting the future: A narrative review of 3D printing in plastic surgery and prosthetic devices. Health Sci Rep 2024; 7:e2205. [PMID: 38915353 PMCID: PMC11194296 DOI: 10.1002/hsr2.2205] [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: 01/17/2024] [Revised: 06/02/2024] [Accepted: 06/08/2024] [Indexed: 06/26/2024] Open
Abstract
Background and Aims The advent of 3D printing has revolutionized plastic surgery and prosthetic devices, providing personalized solutions for patients with traumatic injuries, deformities, and appearance-related conditions. This review offers a comprehensive overview of 3D printing's applications, advantages, limitations, and future prospects in these fields. Methods A literature search was conducted in PubMed, Google Scholar, and Scopus for studies on 3D printing in plastic surgery. Results 3D printing has significantly contributed to personalized medical interventions, with benefits like enhanced design flexibility, reduced production time, and improved patient outcomes. Using computer-aided design (CAD) software, precise models tailored to a patient's anatomy can be created, ensuring better fit, functionality, and comfort. 3D printing allows for intricate geometries, leading to improved aesthetic outcomes and patient-specific prosthetic limbs and orthoses. The historical development of 3D printing, key milestones, and breakthroughs are highlighted. Recent progress in bioprinting and tissue engineering shows promising applications in regenerative medicine and transplantation. The integration of AI and automation with 3D printing enhances surgical planning and outcomes. Emerging trends in patient-specific treatment planning and precision medicine are potential game-changers. However, challenges like technical considerations, economic implications, and ethical issues exist. Addressing these challenges and advancing research in materials, design processes, and long-term outcomes are crucial for widespread adoption. Conclusion The review underscores the increasing adoption of 3D printing in healthcare and its impact on plastic surgery and prosthetic devices. It emphasizes the importance of evaluating the current state and addressing knowledge gaps through future research to foster further advancements.
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Affiliation(s)
| | - Parit Mavani
- B. J. Medical CollegeAhmedabadIndia
- Department of SurgeryEmory University School of MedicineAtlantaGeorgiaUSA
| | | | | | | | - Arnab Kundu
- R.G. Kar Medical College and HospitalKolkataIndia
| | - Arpit Mago
- Jawaharlal Nehru medical CollegeBelgaumIndia
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8
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Pinzon-Herrera L, Magness J, Apodaca-Reyes H, Sanchez J, Almodovar J. Surface Modification of Nerve Guide Conduits with ECM Coatings and Investigating Their Impact on Schwann Cell Response. Adv Healthc Mater 2024; 13:e2304103. [PMID: 38400540 DOI: 10.1002/adhm.202304103] [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: 11/21/2023] [Revised: 02/06/2024] [Indexed: 02/25/2024]
Abstract
In this study, layer-by-layer coatings composed of heparin and collagen are proposed as an extracellular mimetic environment on nerve guide conduits (NGC) to modulate the behavior of Schwann cells (hSCs). The authors evaluated the stability, degradation over time, and bioactivity of six bilayers of heparin/collagen layer-by-layer coatings, denoted as (HEP/COL)6. The stability study reveals that (HEP/COL)6 is stable after incubating the coatings in cell media for up to 21 days. The impact of (HEP/COL)6 on hSCs viability, protein expression, and migration is evaluated. These assays show that hSCs cultured in (HEP/COL)6 have enhanced protein expression and migration. This condition increases the expression of neurotrophic and immunomodulatory factors up to 1.5-fold compared to controls, and hSCs migrated 1.34 times faster than in the uncoated surfaces. Finally, (HEP/COL)6 is also applied to a commercial collagen-based NGC, NeuraGen, and hSC viability and adhesion are studied after 6 days of culture. The morphology of NeuraGen is not altered by the presence of (HEP/COL)6 and a nearly 170% increase of the cell viability is observed in the condition where NeuraGen is used with (HEP/COL)6. Additionally, cell adhesion on the coated samples is successfully demonstrated. This work demonstrates the reparative enhancing potential of extracellular mimetic coatings.
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Affiliation(s)
- Luis Pinzon-Herrera
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, AR, 72701, USA
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD, 21250, USA
| | - John Magness
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, AR, 72701, USA
| | - Hector Apodaca-Reyes
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, AR, 72701, USA
| | - Jesus Sanchez
- Science & Mathematics Division, Northwest Arkansas Community College, 1418 Burns Hall, Bentonville, AR, 72712, USA
| | - Jorge Almodovar
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, AR, 72701, USA
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD, 21250, USA
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Lam TC, Leung YY. Innovations in Peripheral Nerve Regeneration. Bioengineering (Basel) 2024; 11:444. [PMID: 38790310 PMCID: PMC11118957 DOI: 10.3390/bioengineering11050444] [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: 03/19/2024] [Revised: 04/14/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
The field of peripheral nerve regeneration is a dynamic and rapidly evolving area of research that continues to captivate the attention of neuroscientists worldwide. The quest for effective treatments and therapies to enhance the healing of peripheral nerves has gained significant momentum in recent years, as evidenced by the substantial increase in publications dedicated to this field. This surge in interest reflects the growing recognition of the importance of peripheral nerve recovery and the urgent need to develop innovative strategies to address nerve injuries. In this context, this article aims to contribute to the existing knowledge by providing a comprehensive review that encompasses both biomaterial and clinical perspectives. By exploring the utilization of nerve guidance conduits and pharmacotherapy, this article seeks to shed light on the remarkable advancements made in the field of peripheral nerve regeneration. Nerve guidance conduits, which act as artificial channels to guide regenerating nerves, have shown promising results in facilitating nerve regrowth and functional recovery. Additionally, pharmacotherapy approaches have emerged as potential avenues for promoting nerve regeneration, with various therapeutic agents being investigated for their neuroprotective and regenerative properties. The pursuit of advancing the field of peripheral nerve regeneration necessitates persistent investment in research and development. Continued exploration of innovative treatments, coupled with a deeper understanding of the intricate processes involved in nerve regeneration, holds the promise of unlocking the complete potential of these groundbreaking interventions. By fostering collaboration among scientists, clinicians, and industry partners, we can accelerate progress in this field, bringing us closer to the realization of transformative therapies that restore function and quality of life for individuals affected by peripheral nerve injuries.
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Affiliation(s)
| | - Yiu Yan Leung
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China;
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10
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Guo X, Li J, Wu Y, Xu L. Recent advancements in hydrogels as novel tissue engineering scaffolds for dental pulp regeneration. Int J Biol Macromol 2024; 264:130708. [PMID: 38460622 DOI: 10.1016/j.ijbiomac.2024.130708] [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: 12/07/2023] [Revised: 02/22/2024] [Accepted: 03/05/2024] [Indexed: 03/11/2024]
Abstract
Although conventional root canal treatment offers an effective therapeutic solution, it negatively affects the viability of the affected tooth. In recent years, pulp regeneration technology has emerged as a novel method for treating irreversible pulpitis due to its ability to maintain tooth vitality. The successful implementation of this technique depends on scaffolds and transplantation of exogenous stem cells or recruitment of endogenous stem cells. Accordingly, the three-dimensional structure and viscoelastic characteristics of hydrogel scaffolds, which parallel those of the extracellular matrix, have generated considerable interest. Furthermore, hydrogels support the controlled release of regenerative drugs and to load a wide variety of bioactive molecules. By integrating antibacterial agents into the hydrogel matrix and stimulating an immune response, root canal disinfection can be significantly improved and the rate of pulp regeneration can be accelerated. This review aims to provide an overview of the clinical applications of hydrogels that have been reported in the last 5 years, and offer a comprehensive summary of the different approaches that have been utilized for the optimization of hydrogel scaffolds for pulp regeneration. Advancements and challenges in pulp regeneration using hydrogels treating aged teeth are discussed.
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Affiliation(s)
- Xiaofei Guo
- Xiangya Shool of Stomatology, Central South University, Changsha, Hunan, China
| | - Jiaxuan Li
- Xiangya School of Medicine, Central South University, Changsha, Hunan 410083, China
| | - Yong Wu
- Department of Nephrology, The Second Xiangya Hospital, Key Laboratory of Kidney Disease and Blood Purification, Central South University, Changsha, Hunan, China
| | - Laijun Xu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China; School of Stomatology, Changsha Medical University, Changsha, Hunan 410219, China.
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Redolfi Riva E, Özkan M, Contreras E, Pawar S, Zinno C, Escarda-Castro E, Kim J, Wieringa P, Stellacci F, Micera S, Navarro X. Beyond the limiting gap length: peripheral nerve regeneration through implantable nerve guidance conduits. Biomater Sci 2024; 12:1371-1404. [PMID: 38363090 DOI: 10.1039/d3bm01163a] [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: 02/17/2024]
Abstract
Peripheral nerve damage results in the loss of sensorimotor and autonomic functions, which is a significant burden to patients. Furthermore, nerve injuries greater than the limiting gap length require surgical repair. Although autografts are the preferred clinical choice, their usage is impeded by their limited availability, dimensional mismatch, and the sacrifice of another functional donor nerve. Accordingly, nerve guidance conduits, which are tubular scaffolds engineered to provide a biomimetic environment for nerve regeneration, have emerged as alternatives to autografts. Consequently, a few nerve guidance conduits have received clinical approval for the repair of short-mid nerve gaps but failed to regenerate limiting gap damage, which represents the bottleneck of this technology. Thus, it is still necessary to optimize the morphology and constituent materials of conduits. This review summarizes the recent advances in nerve conduit technology. Several manufacturing techniques and conduit designs are discussed, with emphasis on the structural improvement of simple hollow tubes, additive manufacturing techniques, and decellularized grafts. The main objective of this review is to provide a critical overview of nerve guidance conduit technology to support regeneration in long nerve defects, promote future developments, and speed up its clinical translation as a reliable alternative to autografts.
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Affiliation(s)
- Eugenio Redolfi Riva
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Melis Özkan
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Bertarelli Foundation Chair in Translational Neural Engineering, Center for Neuroprosthetics and Institute of Bioengineering, école Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Estefania Contreras
- Integral Service for Laboratory Animals (SIAL), Faculty of Veterinary, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain.
| | - Sujeet Pawar
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Ciro Zinno
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Enrique Escarda-Castro
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Jaehyeon Kim
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Paul Wieringa
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Francesco Stellacci
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Institute of Materials, Department of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne (EPFL), Station 12, CH-1015 Lausanne, Switzerland
| | - Silvestro Micera
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
- Bertarelli Foundation Chair in Translational Neural Engineering, Center for Neuroprosthetics and Institute of Bioengineering, école Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Xavier Navarro
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain.
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
- Institute Guttmann Foundation, Hospital of Neurorehabilitation, Badalona, Spain
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12
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Matta R, Moreau D, O’Connor R. Printable devices for neurotechnology. Front Neurosci 2024; 18:1332827. [PMID: 38440397 PMCID: PMC10909977 DOI: 10.3389/fnins.2024.1332827] [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: 11/03/2023] [Accepted: 02/01/2024] [Indexed: 03/06/2024] Open
Abstract
Printable electronics for neurotechnology is a rapidly emerging field that leverages various printing techniques to fabricate electronic devices, offering advantages in rapid prototyping, scalability, and cost-effectiveness. These devices have promising applications in neurobiology, enabling the recording of neuronal signals and controlled drug delivery. This review provides an overview of printing techniques, materials used in neural device fabrication, and their applications. The printing techniques discussed include inkjet, screen printing, flexographic printing, 3D printing, and more. Each method has its unique advantages and challenges, ranging from precise printing and high resolution to material compatibility and scalability. Selecting the right materials for printable devices is crucial, considering factors like biocompatibility, flexibility, electrical properties, and durability. Conductive materials such as metallic nanoparticles and conducting polymers are commonly used in neurotechnology. Dielectric materials, like polyimide and polycaprolactone, play a vital role in device fabrication. Applications of printable devices in neurotechnology encompass various neuroprobes, electrocorticography arrays, and microelectrode arrays. These devices offer flexibility, biocompatibility, and scalability, making them cost-effective and suitable for preclinical research. However, several challenges need to be addressed, including biocompatibility, precision, electrical performance, long-term stability, and regulatory hurdles. This review highlights the potential of printable electronics in advancing our understanding of the brain and treating neurological disorders while emphasizing the importance of overcoming these challenges.
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Affiliation(s)
- Rita Matta
- Mines Saint-Etienne, Centre CMP, Departement BEL, Gardanne, France
| | - David Moreau
- Mines Saint-Etienne, Centre CMP, Departement BEL, Gardanne, France
| | - Rodney O’Connor
- Mines Saint-Etienne, Centre CMP, Departement BEL, Gardanne, France
- Department of Chemical Engineering, Polytechnique Montreal, Montreal, QC, Canada
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Cai B, Kilian D, Ramos Mejia D, Rios RJ, Ali A, Heilshorn SC. Diffusion-Based 3D Bioprinting Strategies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306470. [PMID: 38145962 PMCID: PMC10885663 DOI: 10.1002/advs.202306470] [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: 09/07/2023] [Revised: 12/11/2023] [Indexed: 12/27/2023]
Abstract
3D bioprinting has enabled the fabrication of tissue-mimetic constructs with freeform designs that include living cells. In the development of new bioprinting techniques, the controlled use of diffusion has become an emerging strategy to tailor the properties and geometry of printed constructs. Specifically, the diffusion of molecules with specialized functions, including crosslinkers, catalysts, growth factors, or viscosity-modulating agents, across the interface of printed constructs will directly affect material properties such as microstructure, stiffness, and biochemistry, all of which can impact cell phenotype. For example, diffusion-induced gelation is employed to generate constructs with multiple materials, dynamic mechanical properties, and perfusable geometries. In general, these diffusion-based bioprinting strategies can be categorized into those based on inward diffusion (i.e., into the printed ink from the surrounding air, solution, or support bath), outward diffusion (i.e., from the printed ink into the surroundings), or diffusion within the printed construct (i.e., from one zone to another). This review provides an overview of recent advances in diffusion-based bioprinting strategies, discusses emerging methods to characterize and predict diffusion in bioprinting, and highlights promising next steps in applying diffusion-based strategies to overcome current limitations in biofabrication.
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Affiliation(s)
- Betty Cai
- Department of Materials Science and EngineeringStanford University476 Lomita MallStanfordCA94305USA
| | - David Kilian
- Department of Materials Science and EngineeringStanford University476 Lomita MallStanfordCA94305USA
| | - Daniel Ramos Mejia
- Department of Materials Science and EngineeringStanford University476 Lomita MallStanfordCA94305USA
| | - Ricardo J. Rios
- Department of Materials Science and EngineeringStanford University476 Lomita MallStanfordCA94305USA
| | - Ashal Ali
- Department of Materials Science and EngineeringStanford University476 Lomita MallStanfordCA94305USA
| | - Sarah C. Heilshorn
- Department of Materials Science and EngineeringStanford University476 Lomita MallStanfordCA94305USA
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14
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Zhao Y, Ran B, Lee D, Liao J. Photo-Controllable Smart Hydrogels for Biomedical Application: A Review. SMALL METHODS 2024; 8:e2301095. [PMID: 37884456 DOI: 10.1002/smtd.202301095] [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: 08/18/2023] [Revised: 09/28/2023] [Indexed: 10/28/2023]
Abstract
Nowadays, smart hydrogels are being widely studied by researchers because of their advantages such as simple preparation, stable performance, response to external stimuli, and easy control of response behavior. Photo-controllable smart hydrogels (PCHs) are a class of responsive hydrogels whose physical and chemical properties can be changed when stimulated by light at specific wavelengths. Since the light source is safe, clean, simple to operate, and easy to control, PCHs have broad application prospects in the biomedical field. Therefore, this review timely summarizes the latest progress in the PCHs field, with an emphasis on the design principles of typical PCHs and their multiple biomedical applications in tissue regeneration, tumor therapy, antibacterial therapy, diseases diagnosis and monitoring, etc. Meanwhile, the challenges and perspectives of widespread practical implementation of PCHs are presented in biomedical applications. This study hopes that PCHs will flourish in the biomedical field and this review will provide useful information for interested researchers.
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Affiliation(s)
- Yiwen Zhao
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Bei Ran
- Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Dashiell Lee
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
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15
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Poerio A, Mano JF, Cleymand F. Advanced 3D Printing Strategies for the Controlled Delivery of Growth Factors. ACS Biomater Sci Eng 2023; 9:6531-6547. [PMID: 37968925 DOI: 10.1021/acsbiomaterials.3c00873] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
The controlled delivery of growth factors (GFs) from tissue engineered constructs represents a promising strategy to improve tissue repair and regeneration. However, despite their established key role in tissue regeneration, the use of GFs is limited by their short half-life in the in vivo environment, their dose-dependent effectiveness, and their space- and time-dependent activity. Promising results have been obtained both in vitro and in vivo in animal models. Nevertheless, the clinical application of tissue engineered constructs releasing GFs is still challenging due to the several limitations and risks associated with their use. 3D printing and bioprinting, by allowing the microprecise spatial deposition of multiple materials and the fabrication of complex geometries with high resolution, offer advanced strategies for an optimal release of GFs from tissue engineered constructs. This review summarizes the strategies that have been employed to include GFs and their delivery system into biomaterials used for 3D printing applications to optimize their controlled release and to improve both the in vitro and in vivo regeneration processes. The approaches adopted to overcome the above-mentioned limitations are presented, showing the potential of the technology of 3D printing to get one step closer to clinical applications.
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Affiliation(s)
- Aurelia Poerio
- Institut Jean Lamour, University of Lorraine, Nancy 54011, France
| | - João F Mano
- Department of Chemistry, CICECO─Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-193, Portugal
| | - Franck Cleymand
- Institut Jean Lamour, University of Lorraine, Nancy 54011, France
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16
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Zhou J, Li Q, Tian Z, Yao Q, Zhang M. Recent advances in 3D bioprinted cartilage-mimicking constructs for applications in tissue engineering. Mater Today Bio 2023; 23:100870. [PMID: 38179226 PMCID: PMC10765242 DOI: 10.1016/j.mtbio.2023.100870] [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: 07/07/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 01/06/2024] Open
Abstract
Human cartilage tissue can be categorized into three types: hyaline cartilage, elastic cartilage and fibrocartilage. Each type of cartilage tissue possesses unique properties and functions, which presents a significant challenge for the regeneration and repair of damaged tissue. Bionics is a discipline in which humans study and imitate nature. A bionic strategy based on comprehensive knowledge of the anatomy and histology of human cartilage is expected to contribute to fundamental study of core elements of tissue repair. Moreover, as a novel tissue-engineered technology, 3D bioprinting has the distinctive advantage of the rapid and precise construction of targeted models. Thus, by selecting suitable materials, cells and cytokines, and by leveraging advanced printing technology and bionic concepts, it becomes possible to simultaneously realize multiple beneficial properties and achieve improved tissue repair. This article provides an overview of key elements involved in the combination of 3D bioprinting and bionic strategies, with a particular focus on recent advances in mimicking different types of cartilage tissue.
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Affiliation(s)
- Jian Zhou
- Department of Foot and Ankle Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, PR China
| | - Qi Li
- Department of Foot and Ankle Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, PR China
| | - Zhuang Tian
- Department of Joint Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, PR China
| | - Qi Yao
- Department of Joint Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, PR China
| | - Mingzhu Zhang
- Department of Foot and Ankle Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, PR China
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17
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Zhang L, Zhang H, Wang H, Guo K, Zhu H, Li S, Gao F, Li S, Yang Z, Liu X, Zheng X. Fabrication of Multi-Channel Nerve Guidance Conduits Containing Schwann Cells Based on Multi-Material 3D Bioprinting. 3D PRINTING AND ADDITIVE MANUFACTURING 2023; 10:1046-1054. [PMID: 37886409 PMCID: PMC10599437 DOI: 10.1089/3dp.2021.0203] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Nerve guidance conduits (NGCs) are an essential solution for peripheral nerve repair and regeneration in tissue engineering and medicine. However, the ability of current NGCs is limited to repairing longer nerve gap (i.e., >20 mm) because it cannot meet the following two conditions simultaneously: (1) directional guidance of the axial high-density channels and (2) regenerative stimulation of the extracellular matrix secreted by Schwann cells (SCs). Therefore, we propose a multi-material 3D bioprinting process to fabricate multi-channel nerve guide conduits (MNGCs) containing SCs. In the article, cell-laden methacrylate gelatin (GelMA) was used as the bulk material of MNGCs. To improve the printing accuracy of the axial channels and the survival rate of SCs, we systematically optimized the printing temperature parameter based on hydrogel printability analysis. The multi-material bioprinting technology was used to realize the alternate printing of supporting gelatin and cell-laden GelMA. Then, the high-accuracy channels were fabricated through the UV cross-linking of GelMA and the dissolving technique of gelatin. The SCs distributed around the channels with a high survival rate, and the cell survival rate maintained above 90%. In general, the study on multi-material 3D printing was carried out from the fabricating technology and material analysis, which will provide a potential solution for the fabrication of MNGCs containing SCs.
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Affiliation(s)
- Liming Zhang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
| | - Hui Zhang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Heran Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Kai Guo
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
| | - Huixuan Zhu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Song Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
| | - Feiyang Gao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
| | - Shijie Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
| | - Zhenda Yang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
| | - Xin Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xiongfei Zheng
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, China
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18
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Kaneda G, Chan JL, Castaneda CM, Papalamprou A, Sheyn J, Shelest O, Huang D, Kluser N, Yu V, Ignacio GC, Gertych A, Yoshida R, Metzger M, Tawackoli W, Vernengo A, Sheyn D. iPSC-derived tenocytes seeded on microgrooved 3D printed scaffolds for Achilles tendon regeneration. J Orthop Res 2023; 41:2205-2220. [PMID: 36961351 PMCID: PMC10518032 DOI: 10.1002/jor.25554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/06/2023] [Accepted: 03/11/2023] [Indexed: 03/25/2023]
Abstract
Tendons and ligaments have a poor innate healing capacity, yet account for 50% of musculoskeletal injuries in the United States. Full structure and function restoration postinjury remains an unmet clinical need. This study aimed to assess the application of novel three dimensional (3D) printed scaffolds and induced pluripotent stem cell-derived mesenchymal stem cells (iMSCs) overexpressing the transcription factor Scleraxis (SCX, iMSCSCX+ ) as a new strategy for tendon defect repair. The polycaprolactone (PCL) scaffolds were fabricated by extrusion through a patterned nozzle or conventional round nozzle. Scaffolds were seeded with iMSCSCX+ and outcomes were assessed in vitro via gene expression analysis and immunofluorescence. In vivo, rat Achilles tendon defects were repaired with iMSCSCX+ -seeded microgrooved scaffolds, microgrooved scaffolds only, or suture only and assessed via gait, gene expression, biomechanical testing, histology, and immunofluorescence. iMSCSCX+ -seeded on microgrooved scaffolds showed upregulation of tendon markers and increased organization and linearity of cells compared to non-patterned scaffolds in vitro. In vivo gait analysis showed improvement in the Scaffold + iMSCSCX+ -treated group compared to the controls. Tensile testing of the tendons demonstrated improved biomechanical properties of the Scaffold + iMSCSCX+ group compared with the controls. Histology and immunofluorescence demonstrated more regular tissue formation in the Scaffold + iMSCSCX+ group. This study demonstrates the potential of 3D-printed scaffolds with cell-instructive surface topography seeded with iMSCSCX+ as an approach to tendon defect repair. Further studies of cell-scaffold constructs can potentially revolutionize tendon reconstruction by advancing the application of 3D printing-based technologies toward patient-specific therapies that improve healing and functional outcomes at both the cellular and tissue level.
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Affiliation(s)
- Giselle Kaneda
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Julie L Chan
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Chloe M Castaneda
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Angela Papalamprou
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Julia Sheyn
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Oksana Shelest
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Dave Huang
- Orthopedics Biomechanics Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA
| | | | - Victoria Yu
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Gian C Ignacio
- Orthopedics Biomechanics Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Arkadiusz Gertych
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Ryu Yoshida
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Melodie Metzger
- Orthopedics Biomechanics Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Wafa Tawackoli
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA
| | | | - Dmitriy Sheyn
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA
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19
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Casanova MR, Mota P, Vala H, Nóbrega C, Morais ADS, Silva CS, Barros AA, Reis RL, Lima E, Martins A, Neves NM. Functional recovery of injured cavernous nerves achieved through endogenous nerve growth factor-containing bioactive fibrous membrane. Acta Biomater 2023; 168:416-428. [PMID: 37467838 DOI: 10.1016/j.actbio.2023.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/21/2023]
Abstract
Radical prostatectomy is a highly successful treatment for prostate cancer, among the most prevalent manifestations of the illness. Damage of the cavernous nerve (CN) during prostatectomy is the main cause of postoperative erectile dysfunction (ED). In this study, the capability of a personalized bioactive fibrous membrane to regenerate injured CN was investigated. The fibrous membrane bioactivity is conferred by the selectively bound nerve growth factor (NGF) present in the rat urine. In a rat model of bilateral CN crush, the implanted bioactive fibrous membrane induces CN regeneration and restoration of erectile function, showing a significantly increased number of smooth muscle cells and content of endothelial and neuronal nitric oxide synthases (eNOS; nNOS). In addition, the bioactive fibrous membrane promotes nerve regeneration by increasing the number of myelinated axons and nNOS-positive cells, therefore reversing the CN fibrosis found in untreated rats or rats treated with a bare fibrous membrane. Therefore, this personalized regenerative strategy could overcome the recognized drawbacks of currently available treatments for CN injuries. It may constitute an effective treatment for prostate cancer patients suffering from ED after being subject to radical prostatectomy. STATEMENT OF SIGNIFICANCE: The present work introduces a unique strategy to address post-surgical ED resulting from CN injury during pelvic surgery (e.g., radical prostatectomy, radical cystoprostatectomy, abdominoperineal resection). It comprises a bioactive and cell-free fibrous implant, customized to enhance CN recovery. Pre-clinical results in a rat model of bilateral CN crush demonstrated that the bioactive fibrous implant can effectively heal injured CN, and restore penile structure and function. This implant selectively binds NGF from patient fluids (i.e. urine) due to its functionalized surface and high surface area. Moreover, its local implantation reduces adverse side effects. This tailored regenerative approach has the potential to revolutionize the treatment of ED in prostate cancer patients following radical prostatectomy, overcoming current treatment limitations.
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Affiliation(s)
- Marta R Casanova
- 3B's Research Group; I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics - University of Minho, European Institute of Excellence in Tissue Engineering and Regenerative Medicine Headquarters, Parque de Ciência e Tecnologia, Zona Industrial da Gandra - Avepark, Barco, Guimarães 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Paulo Mota
- ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga 4710-057, Portugal; Department of Urology, Hospital of Braga, E.P.E, Braga, Portugal
| | - Helena Vala
- Agrarian Superior School of Viseu (ESAV), Polytechnic Institute of Viseu, Viseu 3500-606, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Portugal
| | - Carmen Nóbrega
- Agrarian Superior School of Viseu (ESAV), Polytechnic Institute of Viseu, Viseu 3500-606, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Portugal
| | - Alain da Silva Morais
- 3B's Research Group; I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics - University of Minho, European Institute of Excellence in Tissue Engineering and Regenerative Medicine Headquarters, Parque de Ciência e Tecnologia, Zona Industrial da Gandra - Avepark, Barco, Guimarães 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Catarina S Silva
- 3B's Research Group; I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics - University of Minho, European Institute of Excellence in Tissue Engineering and Regenerative Medicine Headquarters, Parque de Ciência e Tecnologia, Zona Industrial da Gandra - Avepark, Barco, Guimarães 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Alexandre A Barros
- 3B's Research Group; I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics - University of Minho, European Institute of Excellence in Tissue Engineering and Regenerative Medicine Headquarters, Parque de Ciência e Tecnologia, Zona Industrial da Gandra - Avepark, Barco, Guimarães 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Rui L Reis
- 3B's Research Group; I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics - University of Minho, European Institute of Excellence in Tissue Engineering and Regenerative Medicine Headquarters, Parque de Ciência e Tecnologia, Zona Industrial da Gandra - Avepark, Barco, Guimarães 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Estevão Lima
- ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga 4710-057, Portugal; Department of Urology, Hospital of Braga, E.P.E, Braga, Portugal
| | - Albino Martins
- 3B's Research Group; I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics - University of Minho, European Institute of Excellence in Tissue Engineering and Regenerative Medicine Headquarters, Parque de Ciência e Tecnologia, Zona Industrial da Gandra - Avepark, Barco, Guimarães 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Nuno M Neves
- 3B's Research Group; I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics - University of Minho, European Institute of Excellence in Tissue Engineering and Regenerative Medicine Headquarters, Parque de Ciência e Tecnologia, Zona Industrial da Gandra - Avepark, Barco, Guimarães 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal.
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20
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Zennifer A, Thangadurai M, Sundaramurthi D, Sethuraman S. Additive manufacturing of peripheral nerve conduits - Fabrication methods, design considerations and clinical challenges. SLAS Technol 2023; 28:102-126. [PMID: 37028493 DOI: 10.1016/j.slast.2023.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/20/2023] [Accepted: 03/28/2023] [Indexed: 04/08/2023]
Abstract
Tissue-engineered nerve guidance conduits (NGCs) are a viable clinical alternative to autografts and allografts and have been widely used to treat peripheral nerve injuries (PNIs). Although these NGCs are successful to some extent, they cannot aid in native regeneration by improving native-equivalent neural innervation or regrowth. Further, NGCs exhibit longer recovery period and high cost limiting their clinical applications. Additive manufacturing (AM) could be an alternative to the existing drawbacks of the conventional NGCs fabrication methods. The emergence of the AM technique has offered ease for developing personalized three-dimensional (3D) neural constructs with intricate features and higher accuracy on a larger scale, replicating the native feature of nerve tissue. This review introduces the structural organization of peripheral nerves, the classification of PNI, and limitations in clinical and conventional nerve scaffold fabrication strategies. The principles and advantages of AM-based techniques, including the combinatorial approaches utilized for manufacturing 3D nerve conduits, are briefly summarized. This review also outlines the crucial parameters, such as the choice of printable biomaterials, 3D microstructural design/model, conductivity, permeability, degradation, mechanical property, and sterilization required to fabricate large-scale additive-manufactured NGCs successfully. Finally, the challenges and future directions toward fabricating the 3D-printed/bioprinted NGCs for clinical translation are also discussed.
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Affiliation(s)
- Allen Zennifer
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India
| | - Madhumithra Thangadurai
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India.
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21
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Arif ZU, Khalid MY, Noroozi R, Hossain M, Shi HH, Tariq A, Ramakrishna S, Umer R. Additive manufacturing of sustainable biomaterials for biomedical applications. Asian J Pharm Sci 2023; 18:100812. [PMID: 37274921 PMCID: PMC10238852 DOI: 10.1016/j.ajps.2023.100812] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/26/2023] [Accepted: 03/30/2023] [Indexed: 06/07/2023] Open
Abstract
Biopolymers are promising environmentally benign materials applicable in multifarious applications. They are especially favorable in implantable biomedical devices thanks to their excellent unique properties, including bioactivity, renewability, bioresorbability, biocompatibility, biodegradability and hydrophilicity. Additive manufacturing (AM) is a flexible and intricate manufacturing technology, which is widely used to fabricate biopolymer-based customized products and structures for advanced healthcare systems. Three-dimensional (3D) printing of these sustainable materials is applied in functional clinical settings including wound dressing, drug delivery systems, medical implants and tissue engineering. The present review highlights recent advancements in different types of biopolymers, such as proteins and polysaccharides, which are employed to develop different biomedical products by using extrusion, vat polymerization, laser and inkjet 3D printing techniques in addition to normal bioprinting and four-dimensional (4D) bioprinting techniques. This review also incorporates the influence of nanoparticles on the biological and mechanical performances of 3D-printed tissue scaffolds. This work also addresses current challenges as well as future developments of environmentally friendly polymeric materials manufactured through the AM techniques. Ideally, there is a need for more focused research on the adequate blending of these biodegradable biopolymers for achieving useful results in targeted biomedical areas. We envision that biopolymer-based 3D-printed composites have the potential to revolutionize the biomedical sector in the near future.
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Affiliation(s)
- Zia Ullah Arif
- Department of Mechanical Engineering, University of Management & Technology Lahore, Sialkot Campus 51041, Pakistan
| | - Muhammad Yasir Khalid
- Department of Aerospace Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates
| | - Reza Noroozi
- School of Mechanical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
| | - Mokarram Hossain
- Zienkiewicz Centre for Computational Engineering (ZCCE), Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, UK
| | - HaoTian Harvey Shi
- Department of Mechanical & Materials Engineering, Western University, Ontario N6A 3K7, Canada
| | - Ali Tariq
- Department of Mechanical Engineering, University of Management & Technology Lahore, Sialkot Campus 51041, Pakistan
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, 119260, Singapore
| | - Rehan Umer
- Department of Aerospace Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates
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22
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Du J, Wang Z, Liu X, Hu C, Yarema KJ, Jia X. Improving Schwann Cell Differentiation from Human Adipose Stem Cells with Metabolic Glycoengineering. Cells 2023; 12:1190. [PMID: 37190099 PMCID: PMC10136940 DOI: 10.3390/cells12081190] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/17/2023] Open
Abstract
Schwann cells (SCs) are myelinating cells that promote peripheral nerve regeneration. When nerve lesions form, SCs are destroyed, ultimately hindering nerve repair. The difficulty in treating nerve repair is exacerbated due to SC's limited and slow expansion capacity. Therapeutic use of adipose-derived stem cells (ASCs) is emerging in combating peripheral nerve injury due to these cells' SC differentiation capability and can be harvested easily in large numbers. Despite ASC's therapeutic potential, their transdifferentiation period typically takes more than two weeks. In this study, we demonstrate that metabolic glycoengineering (MGE) technology enhances ASC differentiation into SCs. Specifically, the sugar analog Ac5ManNTProp (TProp), which modulates cell surface sialylation, significantly improved ASC differentiation with upregulated SC protein S100β and p75NGFR expression and elevated the neurotrophic factors nerve growth factor beta (NGFβ) and glial cell-line-derived neurotrophic factor (GDNF). TProp treatment remarkably reduced the SC transdifferentiation period from about two weeks to two days in vitro, which has the potential to improve neuronal regeneration and facilitate future use of ASCs in regenerative medicine.
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Affiliation(s)
- Jian Du
- Department of Neurosurgery, University of Maryland School of Medicine, 10 South Pine Street, MST 823, Baltimore, MD 21201, USA
| | - Zihui Wang
- Department of Neurosurgery, University of Maryland School of Medicine, 10 South Pine Street, MST 823, Baltimore, MD 21201, USA
| | - Xiao Liu
- Department of Neurosurgery, University of Maryland School of Medicine, 10 South Pine Street, MST 823, Baltimore, MD 21201, USA
| | - Cecilia Hu
- Department of Neurosurgery, University of Maryland School of Medicine, 10 South Pine Street, MST 823, Baltimore, MD 21201, USA
| | - Kevin J. Yarema
- Department of Biomedical Engineering, The Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
- Translational Cell and Tissue Engineering Center, The Johns Hopkins School of Medicine, Baltimore, MD 21231, USA
| | - Xiaofeng Jia
- Department of Neurosurgery, University of Maryland School of Medicine, 10 South Pine Street, MST 823, Baltimore, MD 21201, USA
- Department of Biomedical Engineering, The Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
- Department of Orthopedics, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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23
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3D culture of the spinal cord with roots as an ex vivo model for comparative studies of motor and sensory nerve regeneration. Exp Neurol 2023; 362:114322. [PMID: 36652972 DOI: 10.1016/j.expneurol.2023.114322] [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: 09/28/2022] [Revised: 12/21/2022] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
Motor and sensory nerves exhibit tissue-specific structural and functional features. However, in vitro models designed to reflect tissue-specific differences between motor and sensory nerve regeneration have rarely been reported. Here, by embedding the spinal cord with roots (SCWR) in a 3D hydrogel environment, we compared the nerve regeneration processes between the ventral and dorsal roots. The 3D hydrogel environment induced an outward migration of neurons in the gray matter of the spinal cord, which allowed the long-term survival of motor neurons. Tuj1 immunofluorescence labeling confirmed the regeneration of neurites from both the ventral and dorsal roots. Next, we detected asymmetric ventral and dorsal root regeneration in response to nerve growth factor (NGF) and glial cell line-derived neurotrophic factor (GDNF), and we observed motor and sensory Schwann cell phenotypes in the regenerated ventral and dorsal roots, respectively. Moreover, based on the SCWR model, we identified a targeted effect of collagen VI on sensory nerve fasciculation and characterized the protein expression profiles correlating to motor/sensory-specific nerve regeneration. These results suggest that the SCWR model can serve as a valuable ex vivo model for comparative study of motor and sensory nerve regeneration and for pharmacodynamic evaluations.
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24
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Kim YT, Ahmadianyazdi A, Folch A. A 'print-pause-print' protocol for 3D printing microfluidics using multimaterial stereolithography. Nat Protoc 2023; 18:1243-1259. [PMID: 36609643 PMCID: PMC10101882 DOI: 10.1038/s41596-022-00792-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 11/03/2022] [Indexed: 01/07/2023]
Abstract
Methods to make microfluidic chips using 3D printers have attracted much attention because these simple procedures allow rapid fabrication of ready-to-use products from digital 3D designs with minimal human intervention. Printing high-resolution chips that are simultaneously transparent, biocompatible and contain regions of dissimilar materials is an ongoing challenge. Transparency allows for the optical inspection of specimens containing cells and labeled biomolecules inside the chip. Being able to use different materials for different layers in the product increases the number of potential applications. In this 'print-pause-print' protocol, we describe detailed strategies for fabricating transparent biomicrofluidic devices and multimaterial chips using stereolithographic 3D printing. To print transparent biomicrofluidic chips, we developed a transparent resin based on poly(ethylene glycol) diacrylate (PEG-DA) (average molecular weight: 250 g/mol, PEG-DA-250) and a smooth chip surface technique achieved using glass. Cells can be successfully cultured and visualized on PEG-DA-250 prints and inside PEG-DA-250 microchannels. The multimaterial potential of the technique is exemplified using a molecular diffusion device that comprises parts made of two different materials: the channel walls, which are water impermeable, and a porous barrier structure, which is permeable to small molecules that diffuse through it. The two materials were prepared from two different molecular-weight PEG-DA-based printing resins. Alignment of the two dissimilar material structures is performed automatically by the printer during the printing process, which only requires a simple pause step to exchange the resins. The procedure takes less than 1 h and can facilitate chip-based applications including biomolecule analysis, cell biology, organ-on-a-chip and tissue engineering.
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Affiliation(s)
- Yong Tae Kim
- Department of Chemical Engineering & Biotechnology, Tech University of Korea, Siheung-si, Republic of Korea.
| | | | - Albert Folch
- Department of Bioengineering, University of Washington, Seattle, WA, USA
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25
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Kaliaraj GS, Shanmugam DK, Dasan A, Mosas KKA. Hydrogels-A Promising Materials for 3D Printing Technology. Gels 2023; 9:gels9030260. [PMID: 36975708 PMCID: PMC10048566 DOI: 10.3390/gels9030260] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023] Open
Abstract
Hydrogels are a promising material for a variety of applications after appropriate functional and structural design, which alters the physicochemical properties and cell signaling pathways of the hydrogels. Over the past few decades, considerable scientific research has made breakthroughs in a variety of applications such as pharmaceuticals, biotechnology, agriculture, biosensors, bioseparation, defense, and cosmetics. In the present review, different classifications of hydrogels and their limitations have been discussed. In addition, techniques involved in improving the physical, mechanical, and biological properties of hydrogels by admixing various organic and inorganic materials are explored. Future 3D printing technology will substantially advance the ability to pattern molecules, cells, and organs. With significant potential for producing living tissue structures or organs, hydrogels can successfully print mammalian cells and retain their functionalities. Furthermore, recent advances in functional hydrogels such as photo- and pH-responsive hydrogels and drug-delivery hydrogels are discussed in detail for biomedical applications.
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Affiliation(s)
- Gobi Saravanan Kaliaraj
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai 600 119, India
| | - Dilip Kumar Shanmugam
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai 600 119, India
| | - Arish Dasan
- FunGlass-Centre for Functional and Surface Functionalised Glass, Alexander Dubcek University of Trencin, 91150 Trencin, Slovakia
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26
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Zhang Q, Zhou J, Zhi P, Liu L, Liu C, Fang A, Zhang Q. 3D printing method for bone tissue engineering scaffold. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2023; 17:None. [PMID: 36909661 PMCID: PMC9995276 DOI: 10.1016/j.medntd.2022.100205] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023] Open
Abstract
3D printing technology is an emerging technology. It constructs solid bodies by stacking materials layer by layer, and can quickly and accurately prepare bone tissue engineering scaffolds with specific shapes and structures to meet the needs of different patients. The field of life sciences has received a great deal of attention. However, different 3D printing technologies and materials have their advantages and disadvantages, and there are limitations in clinical application. In this paper, the technology, materials and clinical applications of 3D printed bone tissue engineering scaffolds are reviewed, and the future development trends and challenges in this field are prospected.
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Affiliation(s)
- Qiliang Zhang
- Department of Orthopaedic Surgery, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, China
| | - Jian Zhou
- Beijing Advanced Innovation Centre for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100191, China
- Department of Orthopaedic Surgery, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, China
| | - Peixuan Zhi
- Beijing Advanced Innovation Centre for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100191, China
- Department of Orthopaedic Surgery, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, China
- The First Affiliated Hospital and Its National Resident Standardized Training Base, Dalian Medical University, Dalian, 116000, China
| | - Leixin Liu
- Beijing Advanced Innovation Centre for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100191, China
- Department of Orthopaedic Surgery, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, China
- The First Affiliated Hospital and Its National Resident Standardized Training Base, Dalian Medical University, Dalian, 116000, China
| | - Chaozong Liu
- Division of Surgery and Interventional Science, Royal National Orthopaedic Hospital, University College London, London, United Kingdom
| | - Ao Fang
- Division of Surgery and Interventional Science, Royal National Orthopaedic Hospital, University College London, London, United Kingdom
- Department of Rehabilitation Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, 310003, China
- Corresponding author. Division of Surgery and Interventional Science, Royal National Orthopaedic Hospital, University College London, London, United Kingdom.
| | - Qidong Zhang
- Division of Surgery and Interventional Science, Royal National Orthopaedic Hospital, University College London, London, United Kingdom
- Beijing Advanced Innovation Centre for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100191, China
- Corresponding author. Division of Surgery and Interventional Science, Royal National Orthopaedic Hospital, University College London, London, United Kingdom.
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27
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Yao X, Zhan L, Yan Z, Li J, Kong L, Wang X, Xiao H, Jiang H, Huang C, Ouyang Y, Qian Y, Fan C. Non-electric bioelectrical analog strategy by a biophysical-driven nano-micro spatial anisotropic scaffold for regulating stem cell niche and tissue regeneration in a neuronal therapy. Bioact Mater 2023; 20:319-338. [PMID: 36380746 PMCID: PMC9640298 DOI: 10.1016/j.bioactmat.2022.05.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 12/20/2022] Open
Abstract
The slow regenerating rate and misdirected axonal growth are primary concerns that disturb the curative outcome of peripheral nerve repair. Biophysical intervention through nerve scaffolds can provide efficient, tunable and sustainable guidance for nerve regrowth. Herein, we fabricate the reduced graphene oxide (rGO)/polycaprolactone (PCL) scaffold characterized with anisotropic microfibers and oriented nanogrooves by electrospinning technique. Adipose-derived stem cells (ADSCs) are seeded on the scaffolds in vitro and the viability, neural differentiation efficiency and neurotrophic potential are investigated. RGO/PCL conduits reprogram the phenotype of seeded cells and efficiently repair 15 mm sciatic nerve defect in rats. In summary, biophysical cues on nerve scaffolds are key determinants to stem cell phenotype, and ADSC-seeded rGO/PCL oriented scaffolds are promising, controllable and sustainable approaches to enable peripheral nerve regeneration.
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Affiliation(s)
- Xiangyun Yao
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Lei Zhan
- Key Laboratory of Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Zhiwen Yan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Juehong Li
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Lingchi Kong
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Xu Wang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Huimin Xiao
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Huiquan Jiang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Chen Huang
- Key Laboratory of Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Yuanming Ouyang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Yun Qian
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
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28
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Zhou L, Huo T, Zhang W, Han N, Wen Y, Zhang P. New techniques and methods for prevention and treatment of symptomatic traumatic neuroma: A systematic review. Front Neurol 2023; 14:1086806. [PMID: 36873443 PMCID: PMC9978738 DOI: 10.3389/fneur.2023.1086806] [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: 11/02/2022] [Accepted: 01/02/2023] [Indexed: 02/18/2023] Open
Abstract
Generally, axons located at the central end of the nerve system will sprout after injury. Once these sprouts cannot reach the distal end of the severed nerve, they will form a traumatic neuroma. Traumatic neuromas bring a series of complex symptoms to patients, such as neuropathic pain, skin abnormalities, skeletal abnormalities, hearing loss, and visceral damage. To date, the most promising and practical clinical treatments are drug induction and surgery, but both have their limitations. Therefore, it will be the mainstream trend to explore new methods to prevent and treat traumatic neuroma by regulating and remodeling the microenvironment of nerve injury. This work first summarized the pathogenesis of traumatic neuroma. Additionally, the standard methods of prevention and treatment on traumatic neuroma were analyzed. We focused on three essential parts of advanced functional biomaterial therapy, stem cell therapy, and human-computer interface therapy to provide the availability and value of preventing and treating a traumatic neuroma. Finally, the revolutionary development of the prevention and treatment on traumatic neuroma has been prospected. How to transform the existing advanced functional materials, stem cells, and artificial intelligence robots into clinical practical technical means as soon as possible for high-quality nerve repair and prevention of neuroma was further discussed.
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Affiliation(s)
- Liping Zhou
- Key Laboratory of Trauma and Neural Regeneration, Department of Orthopaedics and Trauma, Peking University People's Hospital, Peking University, Beijing, China.,Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Tong Huo
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Wenmin Zhang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Na Han
- Key Laboratory of Trauma and Neural Regeneration, Department of Orthopaedics and Trauma, Peking University People's Hospital, Peking University, Beijing, China
| | - Yongqiang Wen
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Peixun Zhang
- Key Laboratory of Trauma and Neural Regeneration, Department of Orthopaedics and Trauma, Peking University People's Hospital, Peking University, Beijing, China
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29
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Namhongsa M, Daranarong D, Sriyai M, Molloy R, Ross S, Ross GM, Tuantranont A, Tocharus J, Sivasinprasasn S, Topham PD, Tighe B, Punyodom W. Surface-Modified Polypyrrole-Coated PLCL and PLGA Nerve Guide Conduits Fabricated by 3D Printing and Electrospinning. Biomacromolecules 2022; 23:4532-4546. [PMID: 36169096 DOI: 10.1021/acs.biomac.2c00626] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The efficiency of nerve guide conduits (NGCs) in repairing peripheral nerve injury is not high enough yet to be a substitute for autografts and is still insufficient for clinical use. To improve this efficiency, 3D electrospun scaffolds (3D/E) of poly(l-lactide-co-ε-caprolactone) (PLCL) and poly(l-lactide-co-glycolide) (PLGA) were designed and fabricated by the combination of 3D printing and electrospinning techniques, resulting in an ideal porous architecture for NGCs. Polypyrrole (PPy) was deposited on PLCL and PLGA scaffolds to enhance biocompatibility for nerve recovery. The designed pore architecture of these "PLCL-3D/E" and "PLGA-3D/E" scaffolds exhibited a combination of nano- and microscale structures. The mean pore size of PLCL-3D/E and PLGA-3D/E scaffolds were 289 ± 79 and 287 ± 95 nm, respectively, which meets the required pore size for NGCs. Furthermore, the addition of PPy on the surfaces of both PLCL-3D/E (PLCL-3D/E/PPy) and PLGA-3D/E (PLGA-3D/E/PPy) led to an increase in their hydrophilicity, conductivity, and noncytotoxicity compared to noncoated PPy scaffolds. Both PLCL-3D/E/PPy and PLGA-3D/E/PPy showed conductivity maintained at 12.40 ± 0.12 and 10.50 ± 0.08 Scm-1 for up to 15 and 9 weeks, respectively, which are adequate for the electroconduction of neuron cells. Notably, the PLGA-3D/E/PPy scaffold showed superior cytocompatibility when compared with PLCL-3D/E/PPy, as evident via the viability assay, proliferation, and attachment of L929 and SC cells. Furthermore, analysis of cell health through membrane leakage and apoptotic indices showed that the 3D/E/PPy scaffolds displayed significant decreases in membrane leakage and reductions in necrotic tissue. Our finding suggests that these 3D/E/PPy scaffolds have a favorable design architecture and biocompatibility with potential for use in peripheral nerve regeneration applications.
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Affiliation(s)
- Manasanan Namhongsa
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Donraporn Daranarong
- Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Montira Sriyai
- Bioplastics Production Laboratory for Medical Applications, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Robert Molloy
- Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sukunya Ross
- Center of Excellence in Biomaterials, Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Gareth M Ross
- Center of Excellence in Biomaterials, Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Adisorn Tuantranont
- National Security and Dual-Use Technology Center, National Science and Technology Development Agency, Khlong Luang 12120, Thailand
| | - Jiraporn Tocharus
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sivanan Sivasinprasasn
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Paul D Topham
- Aston Institute of Materials Research, Aston University, Birmingham B4 7ET, United Kingdom
| | - Brian Tighe
- Aston Institute of Materials Research, Aston University, Birmingham B4 7ET, United Kingdom
| | - Winita Punyodom
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
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30
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Tan SH, Chua DAC, Tang JRJ, Bonnard C, Leavesley D, Liang K. Design of Hydrogel-based Scaffolds for in vitro Three-dimensional Human Skin Model Reconstruction. Acta Biomater 2022; 153:13-37. [DOI: 10.1016/j.actbio.2022.09.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/01/2022] [Accepted: 09/26/2022] [Indexed: 11/01/2022]
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31
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Optimized Decellularization Protocol for Large Peripheral Nerve Segments: Towards Personalized Nerve Bioengineering. Bioengineering (Basel) 2022; 9:bioengineering9090412. [PMID: 36134958 PMCID: PMC9495622 DOI: 10.3390/bioengineering9090412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
Nerve injuries remain clinically challenging, and allografts showed great promise. Decellularized nerve allografts possess excellent biocompatibility and biological activity. However, the vast majority of decellularization protocols were established for small-size rodent nerves and are not suitable for clinical application. We aimed at developing a new method of decellularizing large-diameter nerves suitable for human transplantation. Repeated rounds of optimization to remove immunogenic material and preserve the extracellular structure were applied to the porcine sciatic nerve. Following optimization, extensive in vitro analysis of the acellular grafts via immunocytochemistry, immunohistology, proteomics and cell transplantation studies were performed. Large segments (up to 8 cm) of the porcine sciatic nerve were efficiently decellularized and histology, microscopy and proteomics analysis showed sufficient preservation of the extracellular matrix, with simultaneous consistent removal of immunogenic material such as myelin, DNA and axons, and axonal growth inhibitory molecules. Cell studies also demonstrated the suitability of these acellular grafts for 3D cell culture studies and translation to future large animal studies and clinical trials. By using non-human donors for peripheral nerve transplantation, significant drawbacks associated with the gold standard can be eliminated while simultaneously preserving the beneficial features of the extracellular matrix.
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32
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Jain P, Kathuria H, Dubey N. Advances in 3D bioprinting of tissues/organs for regenerative medicine and in-vitro models. Biomaterials 2022; 287:121639. [PMID: 35779481 DOI: 10.1016/j.biomaterials.2022.121639] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 11/24/2022]
Abstract
Tissue/organ shortage is a major medical challenge due to donor scarcity and patient immune rejections. Furthermore, it is difficult to predict or mimic the human disease condition in animal models during preclinical studies because disease phenotype differs between humans and animals. Three-dimensional bioprinting (3DBP) is evolving into an unparalleled multidisciplinary technology for engineering three-dimensional (3D) biological tissue with complex architecture and composition. The technology has emerged as a key driver by precise deposition and assembly of biomaterials with patient's/donor cells. This advancement has aided in the successful fabrication of in vitro models, preclinical implants, and tissue/organs-like structures. Here, we critically reviewed the current state of 3D-bioprinting strategies for regenerative therapy in eight organ systems, including nervous, cardiovascular, skeletal, integumentary, endocrine and exocrine, gastrointestinal, respiratory, and urinary systems. We also focus on the application of 3D bioprinting to fabricated in vitro models to study cancer, infection, drug testing, and safety assessment. The concept of in situ 3D bioprinting is discussed, which is the direct printing of tissues at the injury or defect site for reparative and regenerative therapy. Finally, issues such as scalability, immune response, and regulatory approval are discussed, as well as recently developed tools and technologies such as four-dimensional and convergence bioprinting. In addition, information about clinical trials using 3D printing has been included.
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Affiliation(s)
- Pooja Jain
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, Maharashtra, India; Faculty of Dentistry, National University of Singapore, Singapore
| | - Himanshu Kathuria
- Department of Pharmacy, National University of Singapore, 117543, Singapore; Nusmetic Pte Ltd, Makerspace, I4 Building, 3 Research Link Singapore, 117602, Singapore.
| | - Nileshkumar Dubey
- Faculty of Dentistry, National University of Singapore, Singapore; ORCHIDS: Oral Care Health Innovations and Designs Singapore, National University of Singapore, Singapore.
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33
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Li H, Yu K, Zhang P, Ye Y, Shu Q. A printability study of multichannel nerve guidance conduits using projection-based three-dimensional printing. J Biomater Appl 2022; 37:538-550. [PMID: 35549934 DOI: 10.1177/08853282221101148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Multichannel nerve guidance conduits (NGCs) replicating the native architecture of peripheral nerves have emerged as promising alternatives to autologous nerve grafts. However, manufacturing multichannel NGCs is challenging in terms of desired structural stability and resolution. In this study, we systematically investigated the effects of photopolymer properties, inner diameter dimensions, printing parameters, and different conditions on multichannel NGCs printability using projection-based three-dimensional printing. Low viscosity and rapid photocuring properties were essential requirements. A standard model was generated to evaluate multichannel NGC printed quality. The results showed that printing deviations decreased with increased mechanical strength and inner diameter. Subsequently, gelatin methacrylate (GelMA) NGCs was selected as a representative. It was found that printing conditions, including printing temperature, peeling, and shrinkage affected final NGC accuracy and quality. PC-12 cells cultured with the GelMA NGCs displayed non-toxic and promoted cell migration. Our research provides an effective, time-saving, and high-resolution technology for manufacturing multichannel NGCs with high fidelity, which may be used as reference templates for biomedical applications.
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Affiliation(s)
- Haibing Li
- Department of Paediatric Orthopaedics, The Children's Hospital, 605254Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Kang Yu
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, 529107Zhejiang University, Hangzhou, China
| | - Peng Zhang
- Engineering for Life Group (EFL), 529107Zhejiang University School of Mechanical Engineering, China
| | - Yensong Ye
- Department of Paediatric Orthopaedics, The Children's Hospital, 605254Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Qiang Shu
- Department of Paediatric Orthopaedics, The Children's Hospital, 605254Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
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34
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Zhao C, Lv Q, Wu W. Application and Prospects of Hydrogel Additive Manufacturing. Gels 2022; 8:gels8050297. [PMID: 35621595 PMCID: PMC9141908 DOI: 10.3390/gels8050297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/07/2022] [Accepted: 05/08/2022] [Indexed: 02/07/2023] Open
Abstract
Hydrogel has become a commonly used material for 3D and 4D printing due to its favorable biocompatibility and low cost. Additive manufacturing, also known as 3D printing, was originally referred to as rapid prototyping manufacturing. Variable-feature rapid prototyping technology, also known as 4D printing, is a combination of materials, mathematics, and additives. This study constitutes a literature review to address hydrogel-based additive manufacturing technologies, introducing the characteristics of commonly used 3D printing hydrogel methods, such as direct ink writing, fused deposition modeling, and stereolithography. With this review, we also investigated the stimulus types, as well as the advantages and disadvantages of various stimulus-responsive hydrogels in smart hydrogels; non-responsive hydrogels; and various applications of additive manufacturing hydrogels, such as neural catheter preparation and drug delivery. The opportunities, challenges, and future prospects of hydrogel additive manufacturing technologies are discussed.
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Affiliation(s)
- Changlong Zhao
- Department of Mechanical and Vehicle Engineering, Changchun University, Changchun 130012, China; (C.Z.); (Q.L.)
| | - Qiyin Lv
- Department of Mechanical and Vehicle Engineering, Changchun University, Changchun 130012, China; (C.Z.); (Q.L.)
| | - Wenzheng Wu
- Department of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China
- Correspondence:
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35
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Zhang Q, Bei HP, Zhao M, Dong Z, Zhao X. Shedding light on 3D printing: Printing photo-crosslinkable constructs for tissue engineering. Biomaterials 2022; 286:121566. [DOI: 10.1016/j.biomaterials.2022.121566] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 04/25/2022] [Accepted: 05/03/2022] [Indexed: 12/11/2022]
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36
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Cakal SD, Radeke C, Alcala JF, Ellman DG, Butdayev S, Andersen DC, Calloe K, Lind JU. A simple and scalable 3D printing methodology for generating aligned and extended human and murine skeletal muscle tissues. Biomed Mater 2022; 17. [PMID: 35483352 DOI: 10.1088/1748-605x/ac6b71] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/28/2022] [Indexed: 11/11/2022]
Abstract
Preclinical biomedical and pharmaceutical research on disease causes, drug targets, and side effects increasingly relies on in vitro models of human tissue. 3D printing offers unique opportunities for generating models of superior physiological accuracy, as well as for automating their fabrication. Towards these goals, we here describe a simple and scalable methodology for generating physiologically relevant models of skeletal muscle. Our approach relies on dual-material micro-extrusion of two types of gelatin hydrogel into patterned soft substrates with locally alternating stiffness. We identify minimally complex patterns capable of guiding the large-scale self-assembly of aligned, extended, and contractile human and murine skeletal myotubes. Interestingly, we find high-resolution patterning is not required, as even patterns with feature sizes of several hundred micrometers is sufficient. Consequently, the procedure is rapid and compatible with any low-cost extrusion-based 3D printer. The generated myotubes easily span several millimeters, and various myotube patterns can be generated in a predictable and reproducible manner. The compliant nature and adjustable thickness of the hydrogel substrates, serves to enable extended culture of contractile myotubes. The method is further readily compatible with standard cell-culturing platforms as well as commercially available electrodes for electrically induced exercise and monitoring of the myotubes.
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Affiliation(s)
- Selgin D Cakal
- Department of Health Technology, Technical University of Denmark, Produktionstorvet, Building 423, Lyngby, 2800, DENMARK
| | - Carmen Radeke
- Department of Health Technology, Technical University of Denmark, Produktionstorvet, Building 423, Lyngby, 2800, DENMARK
| | - Juan F Alcala
- Department of Health Technology, Technical University of Denmark, Produktionstorvet, Building 423, Lyngby, 2800, DENMARK
| | - Ditte G Ellman
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, Odense, Syddanmark, 5000, DENMARK
| | - Sarkhan Butdayev
- Department of Health Technology, Technical University of Denmark, Produktionstorvet, Building 423, Lyngby, 2800, DENMARK
| | - Ditte C Andersen
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, Odense, Syddanmark, 5000, DENMARK
| | - Kirstine Calloe
- Department of Veterinary and Animal Sciences, Section for Pathobiological Sciences, University of Copenhagen, Grønnegårdsvej 7, Frederiksberg C, 1870, DENMARK
| | - Johan Ulrik Lind
- Institut for Sundhedsteknologi, Danmarks Tekniske Universitet, Produktionstorvet, Building 423, Lyngby, 2800, DENMARK
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37
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Yuan TY, Zhang J, Yu T, Wu JP, Liu QY. 3D Bioprinting for Spinal Cord Injury Repair. Front Bioeng Biotechnol 2022; 10:847344. [PMID: 35519617 PMCID: PMC9065470 DOI: 10.3389/fbioe.2022.847344] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 03/18/2022] [Indexed: 11/13/2022] Open
Abstract
Spinal cord injury (SCI) is considered to be one of the most challenging central nervous system injuries. The poor regeneration of nerve cells and the formation of scar tissue after injury make it difficult to recover the function of the nervous system. With the development of tissue engineering, three-dimensional (3D) bioprinting has attracted extensive attention because it can accurately print complex structures. At the same time, the technology of blending and printing cells and related cytokines has gradually been matured. Using this technology, complex biological scaffolds with accurate cell localization can be manufactured. Therefore, this technology has a certain potential in the repair of the nervous system, especially the spinal cord. So far, this review focuses on the progress of tissue engineering of the spinal cord, landmark 3D bioprinting methods, and landmark 3D bioprinting applications of the spinal cord in recent years.
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Liu K, Yan L, Li R, Song Z, Ding J, Liu B, Chen X. 3D Printed Personalized Nerve Guide Conduits for Precision Repair of Peripheral Nerve Defects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103875. [PMID: 35182046 PMCID: PMC9036027 DOI: 10.1002/advs.202103875] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/25/2021] [Indexed: 05/07/2023]
Abstract
The treatment of peripheral nerve defects has always been one of the most challenging clinical practices in neurosurgery. Currently, nerve autograft is the preferred treatment modality for peripheral nerve defects, while the therapy is constantly plagued by the limited donor, loss of donor function, formation of neuroma, nerve distortion or dislocation, and nerve diameter mismatch. To address these clinical issues, the emerged nerve guide conduits (NGCs) are expected to offer effective platforms to repair peripheral nerve defects, especially those with large or complex topological structures. Up to now, numerous technologies are developed for preparing diverse NGCs, such as solvent casting, gas foaming, phase separation, freeze-drying, melt molding, electrospinning, and three-dimensional (3D) printing. 3D printing shows great potential and advantages because it can quickly and accurately manufacture the required NGCs from various natural and synthetic materials. This review introduces the application of personalized 3D printed NGCs for the precision repair of peripheral nerve defects and predicts their future directions.
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Affiliation(s)
- Kai Liu
- Department of Hand and Foot SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130061P. R. China
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
| | - Lesan Yan
- Biomedical Materials and Engineering Research Center of Hubei ProvinceState Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology122 Luoshi RoadWuhan430070P. R. China
| | - Ruotao Li
- Department of Hand and Foot SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130061P. R. China
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
| | - Zhiming Song
- Department of Sports MedicineThe First Hospital of Jilin University1 Xinmin StreetChangchun130061P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
- State Key Laboratory of Molecular Engineering of PolymersFudan University220 Handan RoadShanghai200433P. R. China
| | - Bin Liu
- Department of Hand and Foot SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130061P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
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Zhao G, Tran TT, Modha S, Sedki M, Myung NV, Jassby D, Mulchandani A. Multiplexed Anodic Stripping Voltammetry Detection of Heavy Metals in Water Using Nanocomposites Modified Screen-Printed Electrodes Integrated With a 3D-Printed Flow Cell. Front Chem 2022; 10:815805. [PMID: 35252114 PMCID: PMC8892198 DOI: 10.3389/fchem.2022.815805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/13/2022] [Indexed: 11/13/2022] Open
Abstract
In this study, we present multiplexed anodic stripping voltammetry (ASV) detection of heavy metal ions (HMIs)—As(III), Cd(II), and Pb(II)—using a homemade electrochemical cell consisting of dual working, reference and counter screen-printed electrodes (SPE) on polyimide substrate integrated with a 3D-printed flow cell. Working and counter electrodes were fabricated by the screen-printing of graphite paste while the Ag/AgCl paste was screen-printed as a reference electrode (Ag/AgCl quasi-reference electrode). The working electrodes were modified with (BiO)2CO3-reduced graphene oxide (rGO)-Nafion [(BiO)2CO3-rGO-Nafion] and Fe3O4 magnetic nanoparticles (Fe3O4MNPs) decorated Au nanoparticles (AuNPs)-ionic liquid (IL) (Fe3O4-Au-IL) nanocomposites separately to enhance HMIs sensing. Electrochemical detection was achieved using square wave ASV technique. The desired structure of the flow electrochemical cell was optimized by the computational fluid dynamic (CFD). Different experimental parameters for stripping analysis of HMIs were optimized including deposition time, deposition potential and flow rate. The linear range of calibration curves with the sensing nanocomposites modified SPE for the three metal ions was from 0–50 μg/L. The limits of detection (S/N = 3) were estimated to be 2.4 μg/L for As(III), 1.2 μg/L for Pb(II) and 0.8 μg/L for Cd(II). Furthermore, the homemade flow anodic stripping sensor platform was used to detect HMIs in simulated river water with a 95–101% recovery, indicating high selectivity and accuracy and great potential for applicability even in complex matrices.
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Affiliation(s)
- Guo Zhao
- Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA, United States
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, China
| | - Thien-Toan Tran
- Department of Bioengineering, University of California, Riverside, Riverside, CA, United States
| | - Sidharth Modha
- Department of Bioengineering, University of California, Riverside, Riverside, CA, United States
| | - Mohammed Sedki
- Materials Science and Engineering Program, University of California, Riverside, Riverside, CA, United States
| | - Nosang V. Myung
- Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA, United States
| | - David Jassby
- Department of Civil and Environmental Engineering, University of California, Los Angeles, Los Angeles, CA, United States
| | - Ashok Mulchandani
- Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA, United States
- Center for Environmental Research and Technology (CE-CERT), University of California, Riverside, Riverside, CA, United States
- *Correspondence: Ashok Mulchandani,
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40
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Kaplan B, Levenberg S. The Role of Biomaterials in Peripheral Nerve and Spinal Cord Injury: A Review. Int J Mol Sci 2022; 23:ijms23031244. [PMID: 35163168 PMCID: PMC8835501 DOI: 10.3390/ijms23031244] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 12/18/2022] Open
Abstract
Peripheral nerve and spinal cord injuries are potentially devastating traumatic conditions with major consequences for patients’ lives. Severe cases of these conditions are currently incurable. In both the peripheral nerves and the spinal cord, disruption and degeneration of axons is the main cause of neurological deficits. Biomaterials offer experimental solutions to improve these conditions. They can be engineered as scaffolds that mimic the nerve tissue extracellular matrix and, upon implantation, encourage axonal regeneration. Furthermore, biomaterial scaffolds can be designed to deliver therapeutic agents to the lesion site. This article presents the principles and recent advances in the use of biomaterials for axonal regeneration and nervous system repair.
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Affiliation(s)
- Ben Kaplan
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
- Bruce Rapaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel
| | - Shulamit Levenberg
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
- Correspondence:
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41
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Advances in Electrospun Nerve Guidance Conduits for Engineering Neural Regeneration. Pharmaceutics 2022; 14:pharmaceutics14020219. [PMID: 35213952 PMCID: PMC8876219 DOI: 10.3390/pharmaceutics14020219] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 12/12/2022] Open
Abstract
Injuries to the peripheral nervous system result in devastating consequences with loss of motor and sensory function and lifelong impairments. Current treatments have largely relied on surgical procedures, including nerve autografts to repair damaged nerves. Despite improvements to the surgical procedures over the years, the clinical success of nerve autografts is limited by fundamental issues, such as low functionality and mismatching between the damaged and donor nerves. While peripheral nerves can regenerate to some extent, the resultant outcomes are often disappointing, particularly for serious injuries, and the ongoing loss of function due to poor nerve regeneration is a serious public health problem worldwide. Thus, a successful therapeutic modality to bring functional recovery is urgently needed. With advances in three-dimensional cell culturing, nerve guidance conduits (NGCs) have emerged as a promising strategy for improving functional outcomes. Therefore, they offer a potential therapeutic alternative to nerve autografts. NGCs are tubular biostructures to bridge nerve injury sites via orienting axonal growth in an organized fashion as well as supplying a supportively appropriate microenvironment. Comprehensive NGC creation requires fundamental considerations of various aspects, including structure design, extracellular matrix components and cell composition. With these considerations, the production of an NGC that mimics the endogenous extracellular matrix structure can enhance neuron–NGC interactions and thereby promote regeneration and restoration of function in the target area. The use of electrospun fibrous substrates has a high potential to replicate the native extracellular matrix structure. With recent advances in electrospinning, it is now possible to generate numerous different biomimetic features within the NGCs. This review explores the use of electrospinning for the regeneration of the nervous system and discusses the main requirements, challenges and advances in developing and applying the electrospun NGC in the clinical practice of nerve injuries.
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42
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Li Y, Fraser D, Mereness J, Van Hove A, Basu S, Newman M, Benoit DSW. Tissue Engineered Neurovascularization Strategies for Craniofacial Tissue Regeneration. ACS APPLIED BIO MATERIALS 2022; 5:20-39. [PMID: 35014834 PMCID: PMC9016342 DOI: 10.1021/acsabm.1c00979] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Craniofacial tissue injuries, diseases, and defects, including those within bone, dental, and periodontal tissues and salivary glands, impact an estimated 1 billion patients globally. Craniofacial tissue dysfunction significantly reduces quality of life, and successful repair of damaged tissues remains a significant challenge. Blood vessels and nerves are colocalized within craniofacial tissues and act synergistically during tissue regeneration. Therefore, the success of craniofacial regenerative approaches is predicated on successful recruitment, regeneration, or integration of both vascularization and innervation. Tissue engineering strategies have been widely used to encourage vascularization and, more recently, to improve innervation through host tissue recruitment or prevascularization/innervation of engineered tissues. However, current scaffold designs and cell or growth factor delivery approaches often fail to synergistically coordinate both vascularization and innervation to orchestrate successful tissue regeneration. Additionally, tissue engineering approaches are typically investigated separately for vascularization and innervation. Since both tissues act in concert to improve craniofacial tissue regeneration outcomes, a revised approach for development of engineered materials is required. This review aims to provide an overview of neurovascularization in craniofacial tissues and strategies to target either process thus far. Finally, key design principles are described for engineering approaches that will support both vascularization and innervation for successful craniofacial tissue regeneration.
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Affiliation(s)
- Yiming Li
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - David Fraser
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Jared Mereness
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Amy Van Hove
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Sayantani Basu
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Maureen Newman
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States.,Materials Science Program, University of Rochester, Rochester, New York 14627, United States.,Department of Chemical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Biomedical Genetics and Center for Oral Biology, University of Rochester Medical Center, Rochester, New York 14642, United States
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43
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Samanipour R, Tahmooressi H, Rezaei Nejad H, Hirano M, Shin SR, Hoorfar M. A review on 3D printing functional brain model. BIOMICROFLUIDICS 2022; 16:011501. [PMID: 35145569 PMCID: PMC8816519 DOI: 10.1063/5.0074631] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 12/31/2021] [Indexed: 05/08/2023]
Abstract
Modern neuroscience increasingly relies on 3D models to study neural circuitry, nerve regeneration, and neural disease. Several different biofabrication approaches have been explored to create 3D neural tissue model structures. Among them, 3D bioprinting has shown to have great potential to emerge as a high-throughput/high precision biofabrication strategy that can address the growing need for 3D neural models. Here, we have reviewed the design principles for neural tissue engineering. The main challenge to adapt printing technologies for biofabrication of neural tissue models is the development of neural bioink, i.e., a biomaterial with printability and gelation properties and also suitable for neural tissue culture. This review shines light on a vast range of biomaterials as well as the fundamentals of 3D neural tissue printing. Also, advances in 3D bioprinting technologies are reviewed especially for bioprinted neural models. Finally, the techniques used to evaluate the fabricated 2D and 3D neural models are discussed and compared in terms of feasibility and functionality.
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Affiliation(s)
| | - Hamed Tahmooressi
- Department of Mechanical Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
| | - Hojatollah Rezaei Nejad
- Department of Electrical and Computer Engineering, Tufts University, 161 College Avenue, Medford, Massachusetts 02155, USA
| | | | - Su-Royn Shin
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02139, USA
- Authors to whom correspondence should be addressed: and
| | - Mina Hoorfar
- Faculty of Engineering, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada
- Authors to whom correspondence should be addressed: and
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44
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Yao X, Yan Z, Li X, Li Y, Ouyang Y, Fan C. Tacrolimus-Induced Neurotrophic Differentiation of Adipose-Derived Stem Cells as Novel Therapeutic Method for Peripheral Nerve Injury. Front Cell Neurosci 2021; 15:799151. [PMID: 34955758 PMCID: PMC8692949 DOI: 10.3389/fncel.2021.799151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/18/2021] [Indexed: 11/25/2022] Open
Abstract
Peripheral nerve injuries (PNIs) are frequent traumatic injuries across the globe. Severe PNIs result in irreversible loss of axons and myelin sheaths and disability of motor and sensory function. Schwann cells can secrete neurotrophic factors and myelinate the injured axons to repair PNIs. However, Schwann cells are hard to harvest and expand in vitro, which limit their clinical use. Adipose-derived stem cells (ADSCs) are easily accessible and have the potential to acquire neurotrophic phenotype under the induction of an established protocol. It has been noticed that Tacrolimus/FK506 promotes peripheral nerve regeneration, despite the mechanism of its pro-neurogenic capacity remains undefined. Herein, we investigated the neurotrophic capacity of ADSCs under the stimulation of tacrolimus. ADSCs were cultured in the induction medium for 18 days to differentiate along the glial lineage and were subjected to FK506 stimulation for the last 3 days. We discovered that FK506 greatly enhanced the neurotrophic phenotype of ADSCs which potentiated the nerve regeneration in a crush injury model. This work explored the novel application of FK506 synergized with ADSCs and thus shed promising light on the treatment of severe PNIs.
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Affiliation(s)
- Xiangyun Yao
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiwen Yan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaojing Li
- TianXinFu (Beijing) Medical Appliance Co., Ltd., Beijing, China
| | - Yanhao Li
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanming Ouyang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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45
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Advanced approaches to regenerate spinal cord injury: The development of cell and tissue engineering therapy and combinational treatments. Biomed Pharmacother 2021; 146:112529. [PMID: 34906773 DOI: 10.1016/j.biopha.2021.112529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 12/13/2022] Open
Abstract
Spinal cord injury (SCI) is a central nervous system (CNS) devastate event that is commonly caused by traumatic or non-traumatic events. The reinnervation of spinal cord axons is hampered through a myriad of devices counting on the damaged myelin, inflammation, glial scar, and defective inhibitory molecules. Unfortunately, an effective treatment to completely repair SCI and improve functional recovery has not been found. In this regard, strategies such as using cells, biomaterials, biomolecules, and drugs have been reported to be effective for SCI recovery. Furthermore, recent advances in combinatorial treatments, which address various aspects of SCI pathophysiology, provide optimistic outcomes for spinal cord regeneration. According to the global importance of SCI, the goal of this article review is to provide an overview of the pathophysiology of SCI, with an emphasis on the latest modes of intervention and current advanced approaches for the treatment of SCI, in conjunction with an assessment of combinatorial approaches in preclinical and clinical trials. So, this article can give scientists and clinicians' clues to help them better understand how to construct preclinical and clinical studies that could lead to a breakthrough in spinal cord regeneration.
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Song Y, Chen W, Gai K, Lin F, Sun W. Culture models produced via biomanufacturing for neural tissue-like constructs based on primary neural and neural stem cells. BRAIN SCIENCE ADVANCES 2021. [DOI: 10.26599/bsa.2021.9050021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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47
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Macrophage Activation in the Dorsal Root Ganglion in Rats Developing Autotomy after Peripheral Nerve Injury. Int J Mol Sci 2021; 22:ijms222312801. [PMID: 34884605 PMCID: PMC8657625 DOI: 10.3390/ijms222312801] [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: 08/18/2021] [Revised: 10/22/2021] [Accepted: 11/18/2021] [Indexed: 11/17/2022] Open
Abstract
Autotomy, self-mutilation of a denervated limb, is common in animals after peripheral nerve injury (PNI) and is a reliable proxy for neuropathic pain in humans. Understanding the occurrence and treatment of autotomy remains challenging. The objective of this study was to investigate the occurrence of autotomy in nude and Wistar rats and evaluate the differences in macrophage activation and fiber sensitization contributing to the understanding of autotomy behavior. Autotomy in nude and Wistar rats was observed and evaluated 6 and 12 weeks after sciatic nerve repair surgery. The numbers of macrophages and the types of neurons in the dorsal root ganglion (DRG) between the two groups were compared by immunofluorescence studies. Immunostaining of T cells in the DRG was also assessed. Nude rats engaged in autotomy with less frequency than Wistar rats. Autotomy symptoms were also relatively less severe in nude rats. Immunofluorescence studies revealed increased macrophage accumulation and activation in the DRG of Wistar rats. The percentage of NF200+ neurons was higher at 6 and 12 weeks in Wistar rats compared to nude rats, but the percentage of CGRP+ neurons did not differ between two groups. Additionally, macrophages were concentrated around NF200-labeled A fibers. At 6 and 12 weeks following PNI, CD4+ T cells were not found in the DRG of the two groups. The accumulation and activation of macrophages in the DRG may account for the increased frequency and severity of autotomy in Wistar rats. Our results also suggest that A fiber neurons in the DRG play an important role in autotomy.
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Santisteban-Espejo A, Martin-Piedra MA, Campos A, Moran-Sanchez J, Cobo MJ, Pacheco-Serrano AI, Moral-Munoz JA. Information and Scientific Impact of Advanced Therapies in the Age of Mass Media: Altmetrics-Based Analysis of Tissue Engineering. J Med Internet Res 2021; 23:e25394. [PMID: 34842548 PMCID: PMC8665381 DOI: 10.2196/25394] [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: 10/30/2020] [Revised: 02/23/2021] [Accepted: 07/05/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Tissue engineering (TE) constitutes a multidisciplinary field aiming to construct artificial tissues to regenerate end-stage organs. Its development has taken place since the last decade of the 20th century, entailing a clinical revolution. TE research groups have worked and shared relevant information in the mass media era. Thus, it would be interesting to study the online dimension of TE research and to compare it with traditional measures of scientific impact. OBJECTIVE The objective of this study was to evaluate the online dimension of TE documents from 2012 to 2018 using metadata obtained from the Web of Science (WoS) and Altmetric and to develop a prediction equation for the impact of TE documents from altmetric scores. METHODS We analyzed 10,112 TE documents through descriptive and statistical methods. First, the TE temporal evolution was exposed for WoS and 15 online platforms (news, blogs, policy, Twitter, patents, peer review, Weibo, Facebook, Wikipedia, Google, Reddit, F1000, Q&A, video, and Mendeley Readers). The 10 most cited TE original articles were ranked according to the normalized WoS citations and the normalized Altmetric Attention Score. Second, to better comprehend the TE online framework, correlation and factor analyses were performed based on the suitable results previously obtained for the Bartlett sphericity and Kaiser-Meyer-Olkin tests. Finally, the linear regression model was applied to elucidate the relation between academics and online media and to construct a prediction equation for TE from altmetrics data. RESULTS TE dynamic shows an upward trend in WoS citations, Twitter, Mendeley Readers, and Altmetric Scores. However, WoS and Altmetric rankings for the most cited documents clearly differ. When compared, the best correlation results were obtained for Mendeley Readers and WoS (ρ=0.71). In addition, the factor analysis identified 6 factors that could explain the previously observed differences between academic institutions and the online platforms evaluated. At this point, the mathematical model constructed is able to predict and explain more than 40% of TE WoS citations from Altmetric scores. CONCLUSIONS Scientific information related to the construction of bioartificial tissues increasingly reaches society through different online media. Because the focus of TE research importantly differs when the academic institutions and online platforms are compared, basic and clinical research groups, academic institutions, and health politicians should make a coordinated effort toward the design and implementation of adequate strategies for information diffusion and population health education.
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Affiliation(s)
- Antonio Santisteban-Espejo
- Department of Pathology, Puerta del Mar University Hospital, Cadiz, Spain.,Institute of Research and Innovation in Biomedical Sciences of the Province of Cadiz (INiBICA), University of Cadiz, Cadiz, Spain
| | | | - Antonio Campos
- Department of Histology, Tissue Engineering Group, University of Granada, Granada, Spain
| | - Julia Moran-Sanchez
- Department of Medicine, University of Cadiz, Cadiz, Spain.,Department of Hematology and Hemotherapy, Puerta del Mar University Hospital, Cadiz, Spain
| | - Manuel J Cobo
- Department of Computer Science and Engineering, University of Cadiz, Cadiz, Spain
| | | | - Jose A Moral-Munoz
- Institute of Research and Innovation in Biomedical Sciences of the Province of Cadiz (INiBICA), University of Cadiz, Cadiz, Spain.,Department of Nursing and Physiotherapy, University of Cadiz, Cadiz, Spain
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49
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Parker BJ, Rhodes DI, O'Brien CM, Rodda AE, Cameron NR. Nerve guidance conduit development for primary treatment of peripheral nerve transection injuries: A commercial perspective. Acta Biomater 2021; 135:64-86. [PMID: 34492374 DOI: 10.1016/j.actbio.2021.08.052] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/19/2021] [Accepted: 08/30/2021] [Indexed: 12/17/2022]
Abstract
Commercial nerve guidance conduits (NGCs) for repair of peripheral nerve discontinuities are of little use in gaps larger than 30 mm, and for smaller gaps they often fail to compete with the autografts that they are designed to replace. While recent research to develop new technologies for use in NGCs has produced many advanced designs with seemingly positive functional outcomes in animal models, these advances have not been translated into viable clinical products. While there have been many detailed reviews of the technologies available for creating NGCs, none of these have focussed on the requirements of the commercialisation process which are vital to ensure the translation of a technology from bench to clinic. Consideration of the factors essential for commercial viability, including regulatory clearance, reimbursement processes, manufacturability and scale up, and quality management early in the design process is vital in giving new technologies the best chance at achieving real-world impact. Here we have attempted to summarise the major components to consider during the development of emerging NGC technologies as a guide for those looking to develop new technology in this domain. We also examine a selection of the latest academic developments from the viewpoint of clinical translation, and discuss areas where we believe further work would be most likely to bring new NGC technologies to the clinic. STATEMENT OF SIGNIFICANCE: NGCs for peripheral nerve repairs represent an adaptable foundation with potential to incorporate modifications to improve nerve regeneration outcomes. In this review we outline the regulatory processes that functionally distinct NGCs may need to address and explore new modifications and the complications that may need to be addressed during the translation process from bench to clinic.
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Affiliation(s)
- Bradyn J Parker
- Department of Materials Science and Engineering, Monash University, 22 Alliance Lane, Clayton, Victoria 3800, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Research Way, Clayton, Victoria 3168, Australia
| | - David I Rhodes
- Department of Materials Science and Engineering, Monash University, 22 Alliance Lane, Clayton, Victoria 3800, Australia; ReNerve Pty. Ltd., Brunswick East 3057, Australia
| | - Carmel M O'Brien
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Research Way, Clayton, Victoria 3168, Australia; Australian Regenerative Medicine Institute, Science, Technology, Research and innovation Precinct (STRIP), Monash University, Wellington Road, Clayton, Victoria 3800, Australia
| | - Andrew E Rodda
- Department of Materials Science and Engineering, Monash University, 22 Alliance Lane, Clayton, Victoria 3800, Australia
| | - Neil R Cameron
- Department of Materials Science and Engineering, Monash University, 22 Alliance Lane, Clayton, Victoria 3800, Australia; School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom.
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50
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Parisi C, Qin K, Fernandes FM. Colonization versus encapsulation in cell-laden materials design: porosity and process biocompatibility determine cellularization pathways. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200344. [PMID: 34334019 DOI: 10.1098/rsta.2020.0344] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/28/2021] [Indexed: 06/13/2023]
Abstract
Seeding materials with living cells has been-and still is-one of the most promising approaches to reproduce the complexity and the functionality of living matter. The strategies to associate living cells with materials are limited to cell encapsulation and colonization, however, the requirements for these two approaches have been seldom discussed systematically. Here we propose a simple two-dimensional map based on materials' pore size and the cytocompatibility of their fabrication process to draw, for the first time, a guide to building cellularized materials. We believe this approach may serve as a straightforward guideline to design new, more relevant materials, able to seize the complexity and the function of biological materials. This article is part of the theme issue 'Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 1)'.
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Affiliation(s)
- Cleo Parisi
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, UMR7574, 4 Place Jussieu, 75005 Paris, France
| | - Kankan Qin
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, UMR7574, 4 Place Jussieu, 75005 Paris, France
| | - Francisco M Fernandes
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, UMR7574, 4 Place Jussieu, 75005 Paris, France
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