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Rotaru-Zăvăleanu AD, Dinescu VC, Aldea M, Gresita A. Hydrogel-Based Therapies for Ischemic and Hemorrhagic Stroke: A Comprehensive Review. Gels 2024; 10:476. [PMID: 39057499 PMCID: PMC11276304 DOI: 10.3390/gels10070476] [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: 06/07/2024] [Revised: 07/12/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Stroke remains the second leading cause of death and a major cause of disability worldwide, significantly impacting individuals, families, and healthcare systems. This neurological emergency can be triggered by ischemic events, including small vessel arteriolosclerosis, cardioembolism, and large artery atherothromboembolism, as well as hemorrhagic incidents resulting from macrovascular lesions, venous sinus thrombosis, or vascular malformations, leading to significant neuronal damage. The resultant motor impairment, cognitive dysfunction, and emotional disturbances underscore the urgent need for effective therapeutic interventions. Recent advancements in biomaterials, particularly hydrogels, offer promising new avenues for stroke management. Hydrogels, composed of three-dimensional networks of hydrophilic polymers, are notable for their ability to absorb and retain substantial amounts of water. Commonly used polymers in hydrogel formulations include natural polymers like alginate, chitosan, and collagen, as well as synthetic polymers such as polyethylene glycol (PEG), polyvinyl alcohol (PVA), and polyacrylamide. Their customizable characteristics-such as their porosity, swelling behavior, mechanical strength, and degradation rates-make hydrogels ideal for biomedical applications, including drug delivery, cell delivery, tissue engineering, and the controlled release of therapeutic agents. This review comprehensively explores hydrogel-based approaches to both ischemic and hemorrhagic stroke therapy, elucidating the mechanisms by which hydrogels provide neuroprotection. It covers their application in drug delivery systems, their role in reducing inflammation and secondary injury, and their potential to support neurogenesis and angiogenesis. It also discusses current advancements in hydrogel technology and the significant challenges in translating these innovations from research into clinical practice. Additionally, it emphasizes the limited number of clinical trials utilizing hydrogel therapies for stroke and addresses the associated limitations and constraints, underscoring the need for further research in this field.
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Affiliation(s)
- Alexandra-Daniela Rotaru-Zăvăleanu
- Department of Epidemiology, University of Medicine and Pharmacy of Craiova, 2-4 Petru Rares Str., 200349 Craiova, Romania;
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Venera Cristina Dinescu
- Department of Health Promotion and Occupational Medicine, University of Medicine and Pharmacy of Craiova, 2–4 Petru Rares Str., 200349 Craiova, Romania
| | - Madalina Aldea
- Psychiatry Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Andrei Gresita
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
- Department of Biomedical Sciences, New York Institute of Technology, College of Osteopathic Medicine, Old Westbury, NY 115680, USA
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2
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Mosaddad SA, Hussain A, Tebyaniyan H. Exploring the Use of Animal Models in Craniofacial Regenerative Medicine: A Narrative Review. TISSUE ENGINEERING. PART B, REVIEWS 2024; 30:29-59. [PMID: 37432898 DOI: 10.1089/ten.teb.2023.0038] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
The craniofacial region contains skin, bones, cartilage, the temporomandibular joint (TMJ), teeth, periodontal tissues, mucosa, salivary glands, muscles, nerves, and blood vessels. Applying tissue engineering therapeutically helps replace lost tissues after trauma or cancer. Despite recent advances, it remains essential to standardize and validate the most appropriate animal models to effectively translate preclinical data to clinical situations. Therefore, this review focused on applying various animal models in craniofacial tissue engineering and regeneration. This research was based on PubMed, Scopus, and Google Scholar data available until January 2023. This study included only English-language publications describing animal models' application in craniofacial tissue engineering (in vivo and review studies). Study selection was based on evaluating titles, abstracts, and full texts. The total number of initial studies was 6454. Following the screening process, 295 articles remained on the final list. Numerous in vivo studies have shown that small and large animal models can benefit clinical conditions by assessing the efficacy and safety of new therapeutic interventions, devices, and biomaterials in animals with similar diseases/defects to humans. Different species' anatomical, physiologic, and biological features must be considered in developing innovative, reproducible, and discriminative experimental models to select an appropriate animal model for a specific tissue defect. As a result, understanding the parallels between human and veterinary medicine can benefit both fields.
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Affiliation(s)
- Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmed Hussain
- School of Dentistry, Edmonton Clinic Health Academy, University of Alberta, Edmonton, Canada
| | - Hamid Tebyaniyan
- Department of Science and Research, Islimic Azade University, Tehran, Iran
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3
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Sun J, Cao W, Pan S, He L, Ji D, Zheng N, Sun X, Wang R, Niu Y. Porous Organic Materials in Tissue Engineering: Recent Advances and Applications for Severed Facial Nerve Injury Repair. Molecules 2024; 29:566. [PMID: 38338311 PMCID: PMC10856494 DOI: 10.3390/molecules29030566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 02/12/2024] Open
Abstract
The prevalence of facial nerve injury is substantial, and the restoration of its structure and function remains a significant challenge. Autologous nerve transplantation is a common treatment for severed facial nerve injury; however, it has great limitations. Therefore, there is an urgent need for clinical repair methods that can rival it. Tissue engineering nerve conduits are usually composed of scaffolds, cells and neurofactors. Tissue engineering is regarded as a promising method for facial nerve regeneration. Among different factors, the porous nerve conduit made of organic materials, which has high porosity and biocompatibility, plays an indispensable role. This review introduces facial nerve injury and the existing treatment methods and discusses the necessity of the application of porous nerve conduit. We focus on the application of porous organic polymer materials from production technology and material classification and summarize the necessity and research progress of these in repairing severed facial nerve injury, which is relatively rare in the existing articles. This review provides a theoretical basis for further research into and clinical interventions on facial nerve injury and has certain guiding significance for the development of new materials.
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Affiliation(s)
- Jingxuan Sun
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Wenxin Cao
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China; (W.C.); (D.J.)
- Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450000, China
| | - Shuang Pan
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Lina He
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Dongchao Ji
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China; (W.C.); (D.J.)
| | - Nannan Zheng
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China;
| | - Xiangyu Sun
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Ranxu Wang
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Yumei Niu
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
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4
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Gao Y, Zhang TL, Zhang HJ, Gao J, Yang PF. A Promising Application of Injectable Hydrogels in Nerve Repair and Regeneration for Ischemic Stroke. Int J Nanomedicine 2024; 19:327-345. [PMID: 38229707 PMCID: PMC10790665 DOI: 10.2147/ijn.s442304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/13/2023] [Indexed: 01/18/2024] Open
Abstract
Ischemic stroke, a condition that often leads to severe nerve damage, induces complex pathological and physiological changes in nerve tissue. The mature central nervous system (CNS) lacks intrinsic regenerative capacity, resulting in a poor prognosis and long-term neurological impairments. There is no available therapy that can fully restore CNS functionality. However, the utilization of injectable hydrogels has emerged as a promising strategy for nerve repair and regeneration. Injectable hydrogels possess exceptional properties, such as biocompatibility, tunable mechanical properties, and the ability to provide a supportive environment for cell growth and tissue regeneration. Recently, various hydrogel-based tissue engineering approaches, including cell encapsulation, controlled release of therapeutic factors, and incorporation of bioactive molecules, have demonstrated great potential in the treatment of CNS injuries caused by ischemic stroke. This article aims to provide a comprehensive review of the application and development of injectable hydrogels for the treatment of ischemic stroke-induced CNS injuries, shedding light on their therapeutic prospects, challenges, recent advancements, and future directions. Additionally, it will discuss the underlying mechanisms involved in hydrogel-mediated nerve repair and regeneration, as well as the need for further preclinical and clinical studies to validate their efficacy and safety.
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Affiliation(s)
- Yuan Gao
- Oriental Pan-Vascular Devices Innovation College, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People’s Republic of China
| | - Ting-Lin Zhang
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Hong-Jian Zhang
- Oriental Pan-Vascular Devices Innovation College, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People’s Republic of China
| | - Jie Gao
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Peng-Fei Yang
- Oriental Pan-Vascular Devices Innovation College, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People’s Republic of China
- Neurovascular Center, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
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5
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Furukawa T, Goto T, Abe Y, Sugiyama M, Ito T, Kubota T, Matsui H, Futai K, Kakehata S. The use of basic fibroblast growth factor to treat intractable Bell's palsy administered via transcanal endoscopic ear surgery. Am J Otolaryngol 2024; 45:104020. [PMID: 37604093 DOI: 10.1016/j.amjoto.2023.104020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 08/23/2023]
Abstract
PURPOSE Facial nerve decompression surgery is an invasive procedure which has hitherto been the main option for patients with severe intractable Bell's palsy which is resistant to drug treatment. We have developed a new salvage treatment for such patients by using minimally invasive transcanal endoscopic ear surgery (TEES) to deliver the biological regenerative agent, basic fibroblast growth factor (bFGF), to the damaged facial nerve. MATERIALS AND METHODS An endoscopic salvage treatment group was studied prospectively and was made up of severe intractable Bell's palsy patients who did not respond to high dose steroid treatment and had an ENoG value of 5 % or less. This surgery group was retrospectively compared to a similar control group who had received high dose steroid only. RESULTS Complete recovery to House-Brackmann (HB) Grade I was achieved by 44.8 % of the endoscopic salvage treatment group which was significantly higher than the 21.2 % of the control group at one-year follow up. Patients with an ENoG value of 1 % to 5 % exhibited a significantly higher complete recovery rate of 71.4 % in the endoscopic salvage treatment group than the 28.6 % of the control group. In addition, no complications were observed including hearing loss. CONCLUSIONS bFGF delivered via TEES shows considerable promise as a new salvage treatment of severe intractable Bell's palsy that is resistant to high dose steroid treatment without the risks presented by facial nerve decompression surgery.
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Affiliation(s)
- Takatoshi Furukawa
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan.
| | - Takanari Goto
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
| | - Yasuhiro Abe
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
| | - Motoyasu Sugiyama
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
| | - Tsukasa Ito
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
| | - Toshinori Kubota
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
| | - Hirooki Matsui
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
| | - Kazunori Futai
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
| | - Seiji Kakehata
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Japan
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6
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Miura T, Yamamoto Y, Funayama E, Ishikawa K, Maeda T. Development of a simultaneous and noninvasive measuring method using high-frame rate videography and motion analysis software for the assessment of facial palsy recovery in a rat model. J Plast Reconstr Aesthet Surg 2023; 82:211-218. [PMID: 37192584 DOI: 10.1016/j.bjps.2023.04.026] [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: 12/11/2022] [Accepted: 04/11/2023] [Indexed: 05/18/2023]
Abstract
BACKGROUND For the development of new therapeutic and reconstructive methods for facial nerve palsy, it is critical to validate them in animal models. This study developed a novel evaluation method using a high-speed camera and motion analysis software for rat facial paralysis models. The validity of the new method was verified using normal rats and rats with facial paralysis. METHODS The whisker movement was recorded using a high-frame video camera. The video files were processed using motion analysis software, and the angular velocities were measured. The score was calculated as the percentage of movement on the side that had palsy compared with the movement on the normal side. Normal rats were used to examine which of the four indices of angular velocity is appropriate for this evaluation method. Using this method, two types of facial nerve palsy models were compared. Furthermore, the three agents that were predicted to promote axon regeneration from previous studies were evaluated. RESULTS The two averages of the protraction and retraction movement velocities of the whiskers were considered as the most appropriate indicators for this new method. Compared with the saline group, all agent groups showed significant differences in the improvement of facial palsy recovery. CONCLUSIONS This method is an evaluation method for the effects of therapeutic intervention for facial nerve paralysis in real time without sacrificing animals.
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Affiliation(s)
- Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
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7
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Milano F, Masi A, Madaghiele M, Sannino A, Salvatore L, Gallo N. Current Trends in Gelatin-Based Drug Delivery Systems. Pharmaceutics 2023; 15:pharmaceutics15051499. [PMID: 37242741 DOI: 10.3390/pharmaceutics15051499] [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: 04/24/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
Gelatin is a highly versatile natural polymer, which is widely used in healthcare-related sectors due to its advantageous properties, such as biocompatibility, biodegradability, low-cost, and the availability of exposed chemical groups. In the biomedical field, gelatin is used also as a biomaterial for the development of drug delivery systems (DDSs) due to its applicability to several synthesis techniques. In this review, after a brief overview of its chemical and physical properties, the focus is placed on the commonly used techniques for the development of gelatin-based micro- or nano-sized DDSs. We highlight the potential of gelatin as a carrier of many types of bioactive compounds and its ability to tune and control select drugs' release kinetics. The desolvation, nanoprecipitation, coacervation, emulsion, electrospray, and spray drying techniques are described from a methodological and mechanistic point of view, with a careful analysis of the effects of the main variable parameters on the DDSs' properties. Lastly, the outcomes of preclinical and clinical studies involving gelatin-based DDSs are thoroughly discussed.
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Affiliation(s)
- Francesca Milano
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Annalia Masi
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Marta Madaghiele
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Luca Salvatore
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy
- Typeone Biomaterials Srl, Via Europa 113, 73021 Calimera, Italy
| | - Nunzia Gallo
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy
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8
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Huang Q, Liu B, Wu W. Biomaterial-Based bFGF Delivery for Nerve Repair. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:8003821. [PMID: 37077657 PMCID: PMC10110389 DOI: 10.1155/2023/8003821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 04/21/2023]
Abstract
Diseases in the nervous system are common in the human body. People have to suffer a great burden due to huge economic costs and poor prognosis of the diseases. Many treatment modalities are now available that can make recovery better. Managing nutritional factors is also helpful for such diseases. The basic fibroblast growth factor (bFGF) is one of the major nutritional factors, which plays a crucial role in organogenesis and tissue homeostasis. It plays a role in cell proliferation, migration, and differentiation, thereby regulating angiogenesis and wound healing and repair of the muscle, bone, and nerve. The study on how to improve the stability of bFGF to increase the treatment effect for different diseases has garnered tremendous attention. Biomaterials are the popular methods to improve the stability of bFGF because they are safe for the living body as they are biocompatible. Biomaterials can be loaded with bFGF and delivered locally to achieve the goal of sustained bFGF release. In the present review, we report different types of biomaterials that are used for bFGF delivery for nerve repair and briefly report how the introduced bFGF can function in the nervous system. We aim to provide summative guidance for future studies about nerve injury using bFGF.
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Affiliation(s)
- Qinying Huang
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, China
- The Eye Hospital, School of Ophthalmology & Optometry, Wenzhou Medical University, China
| | - Bo Liu
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, China
- The Eye Hospital, School of Ophthalmology & Optometry, Wenzhou Medical University, China
| | - Wencan Wu
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, China
- The Eye Hospital, School of Ophthalmology & Optometry, Wenzhou Medical University, China
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9
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Tahmasebi E, Mohammadi M, Alam M, Abbasi K, Gharibian Bajestani S, Khanmohammad R, Haseli M, Yazdanian M, Esmaeili Fard Barzegar P, Tebyaniyan H. The current regenerative medicine approaches of craniofacial diseases: A narrative review. Front Cell Dev Biol 2023; 11:1112378. [PMID: 36926524 PMCID: PMC10011176 DOI: 10.3389/fcell.2023.1112378] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/08/2023] [Indexed: 03/08/2023] Open
Abstract
Craniofacial deformities (CFDs) develop following oncological resection, trauma, or congenital disorders. Trauma is one of the top five causes of death globally, with rates varying from country to country. They result in a non-healing composite tissue wound as they degenerate in soft or hard tissues. Approximately one-third of oral diseases are caused by gum disease. Due to the complexity of anatomical structures in the region and the variety of tissue-specific requirements, CFD treatments present many challenges. Many treatment methods for CFDs are available today, such as drugs, regenerative medicine (RM), surgery, and tissue engineering. Functional restoration of a tissue or an organ after trauma or other chronic diseases is the focus of this emerging field of science. The materials and methodologies used in craniofacial reconstruction have significantly improved in the last few years. A facial fracture requires bone preservation as much as possible, so tiny fragments are removed initially. It is possible to replace bone marrow stem cells with oral stem cells for CFDs due to their excellent potential for bone formation. This review article discusses regenerative approaches for different types of craniofacial diseases.
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Affiliation(s)
- Elahe Tahmasebi
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mehdi Mohammadi
- School of Dentistry, Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Abbasi
- Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeed Gharibian Bajestani
- Student Research Committee, Dentistry Research Center, Research Institute of Dental Sciences, Dental School, Shahid Behesti University of Medical Sciences, Tehran, Iran
| | - Rojin Khanmohammad
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mohsen Haseli
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mohsen Yazdanian
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | | | - Hamid Tebyaniyan
- Department of Science and Research, Islimic Azade University, Tehran, Iran
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10
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Lim GM, Cho GW, Ganesan CD, Choi JH, Ang MJ, Moon C, Jang CH. Enhancing the Effect of Placental Extract on the Regeneration of Crush Injured Facial Nerve. Exp Neurobiol 2022; 31:419-430. [PMID: 36631850 PMCID: PMC9841744 DOI: 10.5607/en22006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 12/05/2022] [Accepted: 12/28/2022] [Indexed: 01/13/2023] Open
Abstract
There is a scarcity of experimental studies on peripheral nerve regeneration using placental extract (PE). This study aimed to investigate the effects of topical PE application on recovery after crush injury to the rat facial nerve using functional, electrophysiological, and morphological evaluations. The viability of the RSC96 Schwann cells treated with PE (0.5~4 mg/ml) increased significantly. Immunoblot test revealed that PE application enhanced the migration of RSC96 cells. Quantitative polymerase chain reaction demonstrated that PE increased the expression of neurotropic genes. The recovery from vibrissa fibrillation in the PE-treated group was superior to that in the control group. The threshold of action potential was also significantly lower in the PE group. Histopathological examination showed that crushed facial nerves treated with PE exhibited larger axons. The surrounding myelin sheaths were more distinct and thicker in the PE-treated group. Hence, PE may be considered a topical therapeutic agent for treating traumatic facial nerve paralysis.
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Affiliation(s)
- Gyeong Min Lim
- BK21 FOUR Education Research Group for Age-Associated Disorder Control Technology, Department of Integrative Biological Science, Chosun University, Gwangju 61452, Korea
| | - Gwang-Won Cho
- BK21 FOUR Education Research Group for Age-Associated Disorder Control Technology, Department of Integrative Biological Science, Chosun University, Gwangju 61452, Korea,Department of Biology, College of Natural Science, Chosun University, Gwangju 61452, Korea
| | - Chitra Devi Ganesan
- Department of Biology, College of Natural Science, Chosun University, Gwangju 61452, Korea
| | - Ji Hyun Choi
- Department of Obstetrics and Gynecology, Chosun University School of Medicine, Gwangju 61452, Korea
| | - Mary Jasmin Ang
- Department of Veterinary Anatomy, College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Korea
| | - Changjong Moon
- Department of Veterinary Anatomy, College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Korea,To whom correspondence should be addressed. Changjong Moon, TEL: 82-62-530-2838, e-mail:
| | - Chul Ho Jang
- Department of Otolaryngology, Chonnam National University Medical School, Gwangju 61469, Korea,Chul Ho Jang, TEL: 82-62-220-6774, e-mail:
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11
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Sun S, Lu D, Zhong H, Li C, Yang N, Huang B, Ni S, Li X. Donors for nerve transplantation in craniofacial soft tissue injuries. Front Bioeng Biotechnol 2022; 10:978980. [PMID: 36159691 PMCID: PMC9490317 DOI: 10.3389/fbioe.2022.978980] [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: 06/27/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
Neural tissue is an important soft tissue; for instance, craniofacial nerves govern several aspects of human behavior, including the expression of speech, emotion transmission, sensation, and motor function. Therefore, nerve repair to promote functional recovery after craniofacial soft tissue injuries is indispensable. However, the repair and regeneration of craniofacial nerves are challenging due to their intricate anatomical and physiological characteristics. Currently, nerve transplantation is an irreplaceable treatment for segmental nerve defects. With the development of emerging technologies, transplantation donors have become more diverse. The present article reviews the traditional and emerging alternative materials aimed at advancing cutting-edge research on craniofacial nerve repair and facilitating the transition from the laboratory to the clinic. It also provides a reference for donor selection for nerve repair after clinical craniofacial soft tissue injuries. We found that autografts are still widely accepted as the first options for segmental nerve defects. However, allogeneic composite functional units have a strong advantage for nerve transplantation for nerve defects accompanied by several tissue damages or loss. As an alternative to autografts, decellularized tissue has attracted increasing attention because of its low immunogenicity. Nerve conduits have been developed from traditional autologous tissue to composite conduits based on various synthetic materials, with developments in tissue engineering technology. Nerve conduits have great potential to replace traditional donors because their structures are more consistent with the physiological microenvironment and show self-regulation performance with improvements in 3D technology. New materials, such as hydrogels and nanomaterials, have attracted increasing attention in the biomedical field. Their biocompatibility and stimuli-responsiveness have been gradually explored by researchers in the regeneration and regulation of neural networks.
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Affiliation(s)
- Sishuai Sun
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Di Lu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Hanlin Zhong
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Chao Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Ning Yang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Shilei Ni
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
- *Correspondence: Shilei Ni, ; Xingang Li,
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
- *Correspondence: Shilei Ni, ; Xingang Li,
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12
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Wang G, Lu P, Qiao P, Zhang P, Cai X, Tang L, Qian T, Wang H. Blood vessel remodeling in late stage of vascular network reconstruction is essential for peripheral nerve regeneration. BIOENGINEERING & TRANSLATIONAL MEDICINE 2022; 7:e10361. [PMID: 36176610 PMCID: PMC9472024 DOI: 10.1002/btm2.10361] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 04/03/2022] [Accepted: 05/14/2022] [Indexed: 12/04/2022]
Abstract
One of the bottlenecks of advanced study on tissue engineering in regenerative medicine is rapid and functional vascularization. For a deeper comprehension of vascularization, the exhaustive, dynamic, and three‐dimensional depiction of perfused vascular network reconstruction during peripheral nerve regeneration was performed using Micro‐CT scanning. The 10 mm defect of sciatic nerve in rat was bridged by the autologous or tissue engineered nerve. The blood vessel anastomosis between nerve stumps and autologous nerve accomplished at 4 days to 1 week after surgery, which was a sufficient basis for the mature vascular network re‐establishment. The stronger ability for sprouting angiogenesis and vascular remodeling of autologous nerve compared with tissue engineered nerve was revealed. However, common phases of vascularization in peripheral nerve regeneration were painted: hypoxic initiation, sprouting angiogenesis, and remodeling and maturation. The effect of less‐concerned vascular remodeling on nerve regeneration was further analyzed after nerve crush injury. The blockage of vascular remodeling in late stage by VEGF injection significantly inhibited axons and myelin sheaths regeneration, which attenuated the impulse conduction toward reinnervated muscles. It was illustrated that a large amount of immature blood vessels rather than necessary vascular remodeling elevated local inflammation level in nerve regeneration microenvironment. The figures inspired us to understand the close connections between vascularization and peripheral nerve regeneration from a broader dimension to achieve better constructions, regulations and repair effects of tissue engineered nerves in clinic.
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Affiliation(s)
- Gang Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
| | - Panjian Lu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
| | - Pingping Qiao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
| | - Ping Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
| | - Xiaodong Cai
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
| | - Leili Tang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
| | - Tianmei Qian
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
- Medical College of Soochow University Suzhou China
| | - Hongkui Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products Nantong University Nantong China
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13
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Ma X, Wang M, Ran Y, Wu Y, Wang J, Gao F, Liu Z, Xi J, Ye L, Feng Z. Design and Fabrication of Polymeric Hydrogel Carrier for Nerve Repair. Polymers (Basel) 2022; 14:polym14081549. [PMID: 35458307 PMCID: PMC9031091 DOI: 10.3390/polym14081549] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/23/2022] [Accepted: 04/07/2022] [Indexed: 02/07/2023] Open
Abstract
Nerve regeneration and repair still remain a huge challenge for both central nervous and peripheral nervous system. Although some therapeutic substances, including neuroprotective agents, clinical drugs and stem cells, as well as various growth factors, are found to be effective to promote nerve repair, a carrier system that possesses a sustainable release behavior, in order to ensure high on-site concentration during the whole repair and regeneration process, and high bioavailability is still highly desirable. Hydrogel, as an ideal delivery system, has an excellent loading capacity and sustainable release behavior, as well as tunable physical and chemical properties to adapt to various biomedical scenarios; thus, it is thought to be a suitable carrier system for nerve repair. This paper reviews the structure and classification of hydrogels and summarizes the fabrication and processing methods that can prepare a suitable hydrogel carrier with specific physical and chemical properties. Furthermore, the modulation of the physical and chemical properties of hydrogels is also discussed in detail in order to obtain a better therapeutic effect to promote nerve repair. Finally, the future perspectives of hydrogel microsphere carriers for stroke rehabilitation are highlighted.
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Affiliation(s)
- Xiaoyu Ma
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China; (X.M.); (Z.F.)
| | - Mengjie Wang
- School of Beijing Rehabilitation Medicine, Capital Medical University, Beijing 100044, China;
| | - Yuanyuan Ran
- Department of Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical School, Beijing 100044, China; (Y.R.); (F.G.)
| | - Yusi Wu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; (Y.W.); (J.W.)
- NUIST-UoR International Research Institute, Reading Academy, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Jin Wang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; (Y.W.); (J.W.)
| | - Fuhai Gao
- Department of Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical School, Beijing 100044, China; (Y.R.); (F.G.)
| | - Zongjian Liu
- Department of Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical School, Beijing 100044, China; (Y.R.); (F.G.)
- Correspondence: (Z.L.); (J.X.); (L.Y.); Tel.: +86-1056981363 (Z.L.); +86-1056981279 (J.X.); +86-1068912650 (L.Y.)
| | - Jianing Xi
- Department of Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical School, Beijing 100044, China; (Y.R.); (F.G.)
- Correspondence: (Z.L.); (J.X.); (L.Y.); Tel.: +86-1056981363 (Z.L.); +86-1056981279 (J.X.); +86-1068912650 (L.Y.)
| | - Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China; (X.M.); (Z.F.)
- Correspondence: (Z.L.); (J.X.); (L.Y.); Tel.: +86-1056981363 (Z.L.); +86-1056981279 (J.X.); +86-1068912650 (L.Y.)
| | - Zengguo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China; (X.M.); (Z.F.)
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14
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Liu K, Yu S, Ye L, Gao B. The Regenerative Potential of bFGF in Dental Pulp Repair and Regeneration. Front Pharmacol 2021; 12:680209. [PMID: 34354584 PMCID: PMC8329335 DOI: 10.3389/fphar.2021.680209] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 06/22/2021] [Indexed: 02/05/2023] Open
Abstract
Regenerative endodontic therapy intends to induce the host’s natural wound-healing process, which can restore the vitality, immunity, and sensitivity of the inflammatory or necrotic pulp tissue destroyed by infection or trauma. Myriads of growth factors are critical in the processes of pulp repair and regeneration. Among the key regulatory factors are the fibroblast growth factors, which have turned out to be the master regulators of both organogenesis and tissue homeostasis. Fibroblast growth factors, a family composed of 22 polypeptides, have been used in tissue repair and regeneration settings, in conditions as diverse as burns, ulcers, bone-related diseases, and spinal cord injuries. Meanwhile, in dentistry, the basic fibroblast growth factor is the most frequently investigated. Thereby, the aim of this review is 2-fold: 1) foremost, to explore the underlying mechanisms of the bFGF in dental pulp repair and regeneration and 2) in addition, to shed light on the potential therapeutic strategies of the bFGF in dental pulp–related clinical applications.
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Affiliation(s)
- Keyue Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Sijing Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ling Ye
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bo Gao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Sasaki R, Watanabe Y, Yamato M, Okamoto T. Tissue-engineered nerve guides with mesenchymal stem cells in the facial nerve regeneration. Neurochem Int 2021; 148:105062. [PMID: 34004239 DOI: 10.1016/j.neuint.2021.105062] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 12/31/2022]
Abstract
Nerve guides with mesenchymal stem cells have been investigated in the rat facial nerve defect model to promote peripheral nerve regeneration and shorten recovery time to improve patients' quality of life. A 7-mm facial nerve gap experimental rat model is frequently employed in facial nerve regeneration studies. Facial nerve regeneration with nerve guides is evaluated by (1) assessing myelinated fiber counts using toluidine blue staining, (2) immunohistological analysis, (3) determining the g-ratio (axon diameter/total outer diameter) of regenerated nerve on transmission electron microscopic images, (4) retrograde nerve tracing in the facial nucleus, (5) electrophysiological evaluations using compound muscle action potential, and (6) functional evaluations using rat facial palsy scores. Dental pulp and adipose-derived stem cells, easily harvested using a minimally invasive procedure, possess characteristics of mesenchymal tissue lineages and can differentiate into Schwann-like cells. Cultured dental pulp-derived cells can produce neurotrophic factors, including nerve growth factor, brain-derived neurotrophic factor, and glial cell line-derived neurotrophic factor. These neurotrophic factors promote peripheral nerve regeneration and afford protection against facial motor neuron death. Moreover, artificial nerve guides can maneuver axonal regrowth, and dental pulp-derived cells and adipose-derived Schwann cells may supply neurotrophic factors, promoting axonal regeneration. In the present review, the authors discuss facial nerve regeneration using nerve guides with mesenchymal stem cells.
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Affiliation(s)
- Ryo Sasaki
- Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Yorikatsu Watanabe
- Department of Plastic and Reconstructive Surgery, Tokyo Metropolitan Police Hospital, 4-22-1 Nakano, Nakano-ku, Tokyo, 164-0001, Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Toshihiro Okamoto
- Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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16
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Yoo MC, Chon J, Jung J, Kim SS, Bae S, Kim SH, Yeo SG. Potential Therapeutic Strategies and Substances for Facial Nerve Regeneration Based on Preclinical Studies. Int J Mol Sci 2021; 22:ijms22094926. [PMID: 34066483 PMCID: PMC8124575 DOI: 10.3390/ijms22094926] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 12/14/2022] Open
Abstract
Despite advances in microsurgical technology and an improved understanding of nerve regeneration, obtaining satisfactory results after facial nerve injury remains a difficult clinical problem. Among existing peripheral nerve regeneration studies, relatively few have focused on the facial nerve, particularly how experimental studies of the facial nerve using animal models play an essential role in understanding functional outcomes and how such studies can lead to improved axon regeneration after nerve injury. The purpose of this article is to review current perspectives on strategies for applying potential therapeutic methods for facial nerve regeneration. To this end, we searched Embase, PubMed, and the Cochrane library using keywords, and after applying exclusion criteria, obtained a total of 31 qualifying experimental studies. We then summarize the fundamental experimental studies on facial nerve regeneration, highlighting recent bioengineering studies employing various strategies for supporting facial nerve regeneration, including nerve conduits with stem cells, neurotrophic factors, and/or other therapeutics. Our summary of the methods and results of these previous reports reveal a common feature among studies, showing that various neurotrophic factors arising from injured nerves contribute to a microenvironment that plays an important role in functional recovery. In most cases, histological examinations showed that this microenvironmental influence increased axonal diameter as well as myelination thickness. Such an analysis of available research on facial nerve injury and regeneration represents the first step toward future therapeutic strategies.
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Affiliation(s)
- Myung Chul Yoo
- Department of Physical Medicine & Rehabilitation, College of Medicine, Kyung Hee University, Seoul 02447, Korea; (M.C.Y.); (J.C.)
| | - Jinmann Chon
- Department of Physical Medicine & Rehabilitation, College of Medicine, Kyung Hee University, Seoul 02447, Korea; (M.C.Y.); (J.C.)
| | - Junyang Jung
- Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Sung Su Kim
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Seonhwan Bae
- Department of Otorhinolaryngology, Head & Neck Surgery, College of Medicine, Kyung Hee University, Seoul 02447, Korea; (S.B.); (S.H.K.)
| | - Sang Hoon Kim
- Department of Otorhinolaryngology, Head & Neck Surgery, College of Medicine, Kyung Hee University, Seoul 02447, Korea; (S.B.); (S.H.K.)
| | - Seung Geun Yeo
- Department of Otorhinolaryngology, Head & Neck Surgery, College of Medicine, Kyung Hee University, Seoul 02447, Korea; (S.B.); (S.H.K.)
- Correspondence: ; Tel.: +82-2-958-8980; Fax: +82-2-958-8470
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17
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An electrophysiological evaluation method for the ovine facial nerve. Regen Ther 2021; 18:76-81. [PMID: 33969162 PMCID: PMC8060511 DOI: 10.1016/j.reth.2021.03.008] [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: 12/22/2020] [Revised: 02/12/2021] [Accepted: 03/26/2021] [Indexed: 12/04/2022] Open
Abstract
Introduction Large-animal models such as sheep for facial nerve regeneration research have not yet been established because of the lack of methods for assessing the electrophysiological function of regenerated nerves. In this study, we developed a percutaneous measurement method for the evoked compound muscle action potential (CMAP) of the facial nerve in sheep. Methods Six 3-year-old castrated male Corriedale sheep were used in this study. Under general anesthesia, an anatomical exploration was performed to identify the course of the buccal branch of the facial nerve and its innervating muscles on one side, followed by the application of surface stimulating electrodes to the contralateral side of the face along the course of the buccal branch of the facial nerve to obtain CMAP measurements of the nasolabial levator muscle. Results Percutaneous CMAP measurements of the nasolabial levator muscle could be obtained in all animals by placing stimulating electrodes 1 cm apart on the line coinciding with the course of the buccal branch of the facial nerve revealed by the preceding anatomical exploration. Mean values for electrophysiological parameters were amplitude 4.7 ± 0.7 mV, duration 2.1 ± 0.6 ms, and latency 3.6 ± 0.4 ms. Conclusion We have established a percutaneous measurement method for CMAP of the buccal branch of the facial nerve in sheep. This method is expected to be very useful in future studies of facial nerve regeneration for long nerve defects in sheep. A percutaneous CMAP measurement method for the ovine facial nerve was established. Anatomical experiment demonstrated the method's physiological accuracy. The ovine facial nerve enables a more realistic model of facial nerve regeneration.
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18
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Bengur FB, Stoy C, Binko MA, Nerone WV, Fedor CN, Solari MG, Marra KG. Facial Nerve Repair: Bioengineering Approaches in Preclinical Models. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:364-378. [PMID: 33632013 DOI: 10.1089/ten.teb.2020.0381] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Injury to the facial nerve can occur after different etiologies and range from simple transection of the branches to varying degrees of segmental loss. Management depends on the extent of injury and options include primary repair for simple transections and using autografts, allografts, or conduits for larger gaps. Tissue engineering plays an important role to create artificial materials that are able to mimic the nerve itself without extra morbidity in the patients. The use of neurotrophic factors or stem cells inside the conduits or around the repair site is being increasingly studied to enhance neural recovery to a greater extent. Preclinical studies remain the hallmark for development of these novel approaches and translation into clinical practice. This review will focus on preclinical models of repair after facial nerve injury to help researchers establish an appropriate model to quantify recovery and analyze functional outcomes. Different bioengineered materials, including conduits and nerve grafts, will be discussed based on the experimental animals that were used and the defects introduced. Future directions to extend the applications of processed nerve allografts, bioengineered conduits, and cues inside the conduits to induce neural recovery after facial nerve injury will be highlighted.
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Affiliation(s)
- Fuat Baris Bengur
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Conrad Stoy
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Mary A Binko
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Wayne Vincent Nerone
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Caroline Nadia Fedor
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Mario G Solari
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kacey G Marra
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Kanda Y, Kakutani K, Yurube T, Zhang Z, Miyazaki S, Kakiuchi Y, Takeoka Y, Tsujimoto R, Miyazaki K, Kawamoto T, Takada T, Hoshino Y, Tabata Y, Kuroda R. A novel topical treatment for bone metastases using a gelatin hydrogel incorporating cisplatin as a sustained release system. J Orthop Res 2021; 39:525-535. [PMID: 33030789 DOI: 10.1002/jor.24874] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/24/2020] [Accepted: 10/06/2020] [Indexed: 02/04/2023]
Abstract
Management of bone metastasis is becoming increasingly important. Thus, local and systemic treatment options have been developed for control. Although systemic administration of anticancer agents is effective for bone metastasis, it is often stopped because of poor general conditions or side effects. Therefore, it is highly desirable to develop a more effective and safer local treatment for bone metastasis. The purpose of the current study was to investigate the antitumor effects and safety of gelatin hydrogel microspheres incorporating cisplatin (GM-CDDP), which we developed as a sustained release system without harmful substances. First, we assessed GM-CDDP for its in vitro degradability and potential for sustained release. Second, in vivo antitumor and side effects were evaluated using a murine bone metastasis model of MDA-MB-231 human breast cancer cells incorporating GFP. In vitro, initial bursts were observed within 2 h and CDDP was released gradually with gelatin hydrogel degradation, which reached 100% at 48 h. In vivo, local administration of GM-CDDP (2 mg/kg) significantly suppressed tumor growth and bone osteolysis compared with the control, and local and systemic administration of free CDDP (2 mg/kg; p < 0.05). Local administration of GM-CDDP significantly reduced loss of body weight and elevation of blood urea nitrogen compared with the systemic administration of free CDDP (p < .05). The current study suggests that local administration of GM-CDDP achieves higher antitumor effects with a potential for lesser side effects compared with local or systemic administration of free CDDP.
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Affiliation(s)
- Yutaro Kanda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Zhongying Zhang
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shingo Miyazaki
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuji Kakiuchi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshiki Takeoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryu Tsujimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kunihiko Miyazaki
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Teruya Kawamoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Toru Takada
- Department of Orthopaedic Surgery, Kobe Hokuto Hospital, Kobe, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yasuhiko Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Life and Medical Science, Kyoto University, Kyoto, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Dong Z, Meng X, Yang W, Zhang J, Sun P, Zhang H, Fang X, Wang DA, Fan C. Progress of gelatin-based microspheres (GMSs) as delivery vehicles of drug and cell. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111949. [PMID: 33641932 DOI: 10.1016/j.msec.2021.111949] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 12/13/2022]
Abstract
Gelatin has various attractive features as biomedical materials, for instance, biocompatibility, low immunogenicity, biodegradability, and ease of manipulation. In recent years, various gelatin-based microspheres (GMSs) have been fabricated with innovative technologies to serve as sustained delivery vehicles of drugs and genetic materials as well as beneficial bacteria. Moreover, GMSs have exhibited promising potentials to act as both cell carriers and 3D scaffold components in tissue engineering and regenerative medicine, which not only exhibit excellent injectability but also could be integrated into a macroscale construct with the laden cells. Herein, we aim to thoroughly summarize the recent progress in the preparations and biomedical applications of GMSs and then to point out the research direction in future. First, various methods for the fabrication of GMSs will be described. Second, the recent use of GMSs in tumor embolization and in the delivery of cells, drugs, and genetic material as well as bacteria will be presented. Finally, several key factors that may enhance the improvement of GMSs were suggested as delivery vehicles.
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Affiliation(s)
- Zuoxiang Dong
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China; Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Xinyue Meng
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China
| | - Wei Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China
| | - Jinfeng Zhang
- Department of Surgery, Songshan Hospital of Qingdao University, Qingdao 266021, Shandong, China
| | - Peng Sun
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Huawei Zhang
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Xing Fang
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region; Shenzhen Research Institute, City University of Hong Kong, Shenzhen Hi-tech Industrial Park, Shenzhen, Guangdong 518057, China; Karolinska Institute Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong Special Administrative Region.
| | - Changjiang Fan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China.
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Li Q, Zhang H, Pan J, Teng B, Zeng Z, Chen Y, Hei Y, Zhang S, Wei S, Sun Y. Tripeptide-based macroporous hydrogel improves the osteogenic microenvironment of stem cells. J Mater Chem B 2021; 9:6056-6067. [PMID: 34278393 DOI: 10.1039/d1tb01175h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the ability to combine multiple osteogenic induction "cues" at the same time, hydrogels are widely used in the three-dimensional (3D) culture of human mesenchymal stem cells (hMSCs) and osteoinduction. However, the survival and proliferation of stem cells in a 3D culture system are limited, which reduces their osteogenic differentiation efficiency. In addition, the cells inside the hydrogel are prone to apoptosis due to hypoxia, which is a serious challenge for tissue engineering based on stem cells. In this study, a tripeptide-based macroporous alginate hydrogel was prepared to improve the osteogenic microenvironment of stem cells. The arginine-glycine-aspartate (RGD) peptide promoted the adhesion and proliferation of stem cells, and the degradation of gelatin microspheres (GMs) produced a macroporous structure to enhance further the migration and aggregation of stem cells. Mesoporous silica nanoparticles (MSNs) sustained-release bone-forming peptide-1 (BFP-1) induced osteogenic differentiation, and the sustained release of the QK peptide from the GMs promoted angiogenesis. In vitro experiments have shown that this functionalized hydrogel stimulates the proliferation of hMSCs, encourages larger cell cluster formation, and enhances the osteogenic differentiation efficiency. The released QK facilitates the proliferation and migration of endothelial cells. In vivo experiments have also verified that this system has a better osteogenic effect, and more blood vessels were observed inside the hydrogel, than in other systems. In general, this research has led to the development of a tripeptide macroporous hydrogel that can simultaneously promote osteogenesis and angiogenesis, showing great promise for applications of 3D cultures and stem cell-based tissue engineering.
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Affiliation(s)
- Qian Li
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China and Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - He Zhang
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Jijia Pan
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Binhong Teng
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Ziqian Zeng
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Yang Chen
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yu Hei
- College of Engineering, Peking University, Beijing 100871, China
| | - Siqi Zhang
- Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Shicheng Wei
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China and Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Yuhua Sun
- School of Stomatology, Xuzhou Medical University, Xuzhou 221004, China and Department of Stomatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221004, China.
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22
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Sugiyama M, Ito T, Furukawa T, Hirayama A, Kakehata S. The effect of insulin-like growth factor 1 on the recovery of facial nerve function in a guinea pig model of facial palsy. J Physiol Sci 2020; 70:28. [PMID: 32513097 PMCID: PMC10717557 DOI: 10.1186/s12576-020-00755-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 05/21/2020] [Indexed: 01/13/2023]
Abstract
The efficacy of insulin-like growth factor 1 (IGF-1) in the treatment of peripheral facial nerve palsy was investigated using an animal model. The facial nerve within the temporal bone was exposed and compressed by clamping. The animals were treated with either IGF-1 or saline which was topically administered by a gelatin-based sustained-release hydrogel via an intratemporal route. The recovery from facial nerve palsy was evaluated at 8 weeks postoperatively based on eyelid closure, complete recovery rate, electroneurography and number of axons found on the facial nerve. IGF-1 treatment resulted in significant improvement in the changes of the degree of eyelid closure over the total time period and complete recovery rate. A separate study showed that IGF-1 receptor mRNA was expressed in facial nerves up to 14 days after the nerve-clamping procedure. IGF-1 was thus found to be effective in the treatment of peripheral facial nerve palsy when topically applied using a sustained-release gelatin-based hydrogel via an intratemporal route.
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Affiliation(s)
- Motoyasu Sugiyama
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata-shi, Yamagata, 990-9585, Japan
| | - Tsukasa Ito
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata-shi, Yamagata, 990-9585, Japan
| | - Takatoshi Furukawa
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata-shi, Yamagata, 990-9585, Japan
| | - Atsushi Hirayama
- Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, 2-15 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Seiji Kakehata
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata-shi, Yamagata, 990-9585, Japan.
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23
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Hu X, Li R, Wu Y, Li Y, Zhong X, Zhang G, Kang Y, Liu S, Xie L, Ye J, Xiao J. Thermosensitive heparin-poloxamer hydrogel encapsulated bFGF and NGF to treat spinal cord injury. J Cell Mol Med 2020; 24:8166-8178. [PMID: 32515141 PMCID: PMC7348165 DOI: 10.1111/jcmm.15478] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 04/18/2020] [Accepted: 05/24/2020] [Indexed: 01/10/2023] Open
Abstract
The application of growth factors (GFs) for treating chronic spinal cord injury (SCI) has been shown to promote axonal regeneration and functional recovery. However, direct administration of GFs is limited by their rapid degradation and dilution at the injured sites. Moreover, SCI recovery is a multifactorial process that requires multiple GFs to participate in tissue regeneration. Based on these facts, controlled delivery of multiple growth factors (GFs) to lesion areas is becoming an attractive strategy for repairing SCI. Presently, we developed a GFs‐based delivery system (called GFs‐HP) that consisted of basic fibroblast growth factor (bFGF), nerve growth factor (NGF) and heparin‐poloxamer (HP) hydrogel through self‐assembly mode. This GFs‐HP was a kind of thermosensitive hydrogel that was suitable for orthotopic administration in vivo. Meanwhile, a 3D porous structure of this hydrogel is commonly used to load large amounts of GFs. After single injection of GFs‐HP into the lesioned spinal cord, the sustained release of NGF and bFGF from HP could significantly improve neuronal survival, axon regeneration, reactive astrogliosis suppression and locomotor recovery, when compared with the treatment of free GFs or HP. Moreover, we also revealed that these neuroprotective and neuroregenerative effects of GFs‐HP were likely through activating the phosphatidylinositol 3 kinase and protein kinase B (PI3K/Akt) and mitogen‐activated protein kinase/extracellular signal‐regulated kinase (MAPK/ERK) signalling pathways. Overall, our work will provide an effective therapeutic strategy for SCI repair.
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Affiliation(s)
- Xiaoli Hu
- Department of Anesthesia, The First Affiliated Hospital, Gannan Medical University, Ganzhou, China.,Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Rui Li
- Department of Anesthesia, The First Affiliated Hospital, Gannan Medical University, Ganzhou, China.,Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.,School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Yanqing Wu
- The Institute of Life Sciences, Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Wenzhou, China
| | - Yi Li
- Department of Anesthesia, The First Affiliated Hospital, Gannan Medical University, Ganzhou, China
| | - Xingfeng Zhong
- Department of Anesthesia, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Guanyinsheng Zhang
- Department of Anesthesia, The First Affiliated Hospital, Gannan Medical University, Ganzhou, China
| | - Yanmin Kang
- Department of Anesthesia, The First Affiliated Hospital, Gannan Medical University, Ganzhou, China
| | - Shuhua Liu
- Department of Anesthesia, The First Affiliated Hospital, Gannan Medical University, Ganzhou, China
| | - Ling Xie
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Junming Ye
- Department of Anesthesia, The First Affiliated Hospital, Gannan Medical University, Ganzhou, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.,The Institute of Life Sciences, Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Wenzhou, China
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24
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Biosynthesis, characterization and evaluation of the supportive properties and biocompatibility of DBM nanoparticles on a tissue-engineered nerve conduit from decellularized sciatic nerve. Regen Ther 2020; 14:315-321. [PMID: 32467828 PMCID: PMC7243182 DOI: 10.1016/j.reth.2020.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/13/2020] [Accepted: 03/11/2020] [Indexed: 11/22/2022] Open
Abstract
In this study, we examined the supporting effects of nano-demineralized bone matrix on the cultivation of Wharton's jelly stem cells on acellularized nerve scaffold. Demineralized bone matrix nanoparticles were prepared and characterized by several experiments. Decellularized sciatic nerve scaffolds were prepared and their efficiency was evaluated using histological stainings and biomechanical testing. Results of histological staining indicated that the integrity of the extra cellular matrix components was preserved. Also, the growth and viability of WJSCs on the scaffolds were significantly higher in DBM nanoparticle groups. We conclude that supportive properties of nano-DBM groups showed better cell viability and a suitable microenvironment for proliferation, retention, and adhesion of cells compared with other groups.
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25
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Tissue Engineering and Regenerative Medicine in Craniofacial Reconstruction and Facial Aesthetics. J Craniofac Surg 2020; 31:15-27. [PMID: 31369496 DOI: 10.1097/scs.0000000000005840] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The craniofacial region is anatomically complex and is of critical functional and cosmetic importance, making reconstruction challenging. The limitations of current surgical options highlight the importance of developing new strategies to restore the form, function, and esthetics of missing or damaged soft tissue and skeletal tissue in the face and cranium. Regenerative medicine (RM) is an expanding field which combines the principles of tissue engineering (TE) and self-healing in the regeneration of cells, tissues, and organs, to restore their impaired function. RM offers many advantages over current treatments as tissue can be engineered for specific defects, using an unlimited supply of bioengineered resources, and does not require immunosuppression. In the craniofacial region, TE and RM are being increasingly used in preclinical and clinical studies to reconstruct bone, cartilage, soft tissue, nerves, and blood vessels. This review outlines the current progress that has been made toward the engineering of these tissues for craniofacial reconstruction and facial esthetics.
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26
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Buie T, McCune J, Cosgriff-Hernandez E. Gelatin Matrices for Growth Factor Sequestration. Trends Biotechnol 2020; 38:546-557. [PMID: 31954527 DOI: 10.1016/j.tibtech.2019.12.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/15/2019] [Accepted: 12/06/2019] [Indexed: 01/07/2023]
Abstract
Gelatin is used in a broad range of tissue engineering applications because of its bioactivity, mild processing conditions, and ease of modification, which have increased interest in its use as a growth factor delivery vehicle. Traditional methods to control growth factor sequestration and delivery have relied on controlling hydrogel mesh size via chemical crosslinking with corollary changes to the physical properties of the hydrogel. To decouple growth factor release from scaffold properties, affinity sequestration modalities have been developed to preserve the bioactivity of the growth factor through interactions with the modified gelatin. This review provides a summary of these mechanisms, highlights current gelatin growth factor delivery systems, and addresses the future perspective of gelatin matrices for growth factor delivery in tissue engineering.
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Affiliation(s)
- Taneidra Buie
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, USA
| | - Joshua McCune
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, USA
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27
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Manoukian OS, Baker JT, Rudraiah S, Arul MR, Vella AT, Domb AJ, Kumbar SG. Functional polymeric nerve guidance conduits and drug delivery strategies for peripheral nerve repair and regeneration. J Control Release 2019; 317:78-95. [PMID: 31756394 DOI: 10.1016/j.jconrel.2019.11.021] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/16/2019] [Accepted: 11/18/2019] [Indexed: 12/25/2022]
Abstract
Peripheral nerve injuries can be extremely debilitating, resulting in sensory and motor loss-of-function. Endogenous repair is limited to non-severe injuries in which transection of nerves necessitates surgical intervention. Traditional treatment approaches include the use of biological grafts and alternative engineering approaches have made progress. The current article serves as a comprehensive, in-depth perspective on peripheral nerve regeneration, particularly nerve guidance conduits and drug delivery strategies. A detailed background of peripheral nerve injury and repair pathology, and an in-depth look into augmented nerve regeneration, nerve guidance conduits, and drug delivery strategies provide a state-of-the-art perspective on the field.
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Affiliation(s)
- Ohan S Manoukian
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA; Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Jiana T Baker
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Swetha Rudraiah
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA; Department of Pharmaceutical Sciences, University of Saint Joseph, Hartford, CT, USA
| | - Michael R Arul
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Anthony T Vella
- Department of Department of Immunology, University of Connecticut Health, Farmington, CT, USA
| | - Abraham J Domb
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Sangamesh G Kumbar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA; Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA.
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28
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Sasaki R, Matsumine H, Watanabe Y, Ando T, Yamato M. A cage cleaning method for researchers without a cage-washing machine or cage-washing staff. Regen Ther 2019; 11:73-74. [PMID: 31223635 PMCID: PMC6562832 DOI: 10.1016/j.reth.2019.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/07/2019] [Accepted: 05/23/2019] [Indexed: 10/29/2022] Open
Affiliation(s)
- Ryo Sasaki
- Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.,Department of Plastic and Reconstructive Surgery, Yachiyo Medical Center, Tokyo Women's Medical University, 477-96 Owada-shinden, Yachiyo-shi, Chiba, 276-8524, Japan.,Department of Plastic and Reconstructive Surgery, Tokyo Metropolitan Police Hospital, 4-22-1 Nakano, Nakano-ku, Tokyo, 164-0001, Japan.,Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.,Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Hajime Matsumine
- Department of Plastic and Reconstructive Surgery, Yachiyo Medical Center, Tokyo Women's Medical University, 477-96 Owada-shinden, Yachiyo-shi, Chiba, 276-8524, Japan.,Department of Plastic and Reconstructive Surgery, Tokyo Metropolitan Police Hospital, 4-22-1 Nakano, Nakano-ku, Tokyo, 164-0001, Japan.,Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.,Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Yorikatsu Watanabe
- Department of Plastic and Reconstructive Surgery, Tokyo Metropolitan Police Hospital, 4-22-1 Nakano, Nakano-ku, Tokyo, 164-0001, Japan.,Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.,Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Tomohiro Ando
- Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.,Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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29
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Full-thickness skin reconstruction with basic fibroblast growth factor-impregnated collagen-gelatin sponge. Regen Ther 2019; 11:81-87. [PMID: 31249847 PMCID: PMC6584791 DOI: 10.1016/j.reth.2019.06.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/24/2019] [Accepted: 06/03/2019] [Indexed: 11/18/2022] Open
Abstract
Introduction This study examined the usefulness of basic fibroblast growth factor impregnated collagen-gelatin sponge (bFGF-CGS) in reconstructive surgery for various acute skin defects including deep dermal burns, facial full-thickness skin defects, and finger amputations as the first clinical application. Methods Reconstructive surgery was performed in two stages with bFGF-CGS in 8 male subjects, ranging in age from 6 to 84 years, with acute full-thickness skin defects. Following the adequate debridement of the defect, surgeons prepared a bFGF-CGS with bFGF solution at a dose of 7–14 mg/cm2 approximately 10 min just before application and then secured the bFGF-CGS in place with non-absorbable sutures. Second-stage wound closure was performed with autologous skin grafting following adequate dermis-like tissue regeneration at the site postoperatively. Follow-up was continued for 6 months. Results Of the 8 subjects, the mean duration from the adequate vascularization of the dermis-like tissue until the second-stage autologous skin graft was 22 ± 4 days. Wound closure was achieved in all cases; the mean duration until wound closure was 32 ± 8 days. During the 6-month follow-up period, no wound infection, recurrent skin ulceration, and no exposure of tendon, bone, and cartilage were observed, and there were no cases of indirectly restricted range of motion from postoperative scar contracture and none with disfiguring scars. Conclusion The authors achieved favorable outcomes following reconstructive surgery with a hybrid artificial dermis impregnated with bFGF for treating acute full-thickness skin defects. bFGF-CGS serves as a convenient regenerative device requiring no specialized medical facilities. This study examined the usefulness of bFGF-impregnated collagen gelatin sponge for skin defects. bFGF-CGS achieved wound closure with acute full-thickness skin defects in a short period of time. bFGF-CGS is a convenient device without requiring specialized medical facilities.
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30
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Kamei W, Matsumine H, Osaki H, Ueta Y, Tsunoda S, Shimizu M, Hashimoto K, Niimi Y, Miyata M, Sakurai H. Axonal supercharged interpositional jump-graft with a hybrid artificial nerve conduit containing adipose-derived stem cells in facial nerve paresis rat model. Microsurgery 2018; 38:889-898. [PMID: 30380159 DOI: 10.1002/micr.30389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 09/10/2018] [Accepted: 09/21/2018] [Indexed: 12/15/2022]
Abstract
PURPOSE Interpositional jump-graft (IPJG) technique with the hypoglossal nerve for supercharging can be applied in a facial nerve paresis case. In IPJG, an autologous nerve is required, and the donor site morbidity is unavoidable. Biodegradable nerve conduits are made from polyglycolic acid (PGA) and used recently without donor site complications after providing autologous grafts. Hybrid artificial nerve conduits with adipose-derived stem cells (ASCs) also attract attention as a nerve-regeneration enhancing agent. This study examined the effect of hybrid artificial nerve conduit on IPJG. MATERIALS AND METHODS A total of 34 Lewis rats were used and divided into 4 groups by the bridge materials: autograft (n = 8), PGA nerve conduit (n = 8), hybrid PGA nerve conduit with ASCs (n = 8), and the nontreated control groups (n = 8). ASCs were collected from 2 rats and cultured. The animals were assessed physiologically and histopathologically at 13 weeks after surgery. RESULTS In compound muscle action potential, the amplitude of hybrid PGA group (3,222 ± 1,779 μV) was significantly higher than that of PGA group (1,961 ± 445 μV, P < .05), and no significant difference between hybrid PGA and autograft group. All treated groups showed a myelinated nerve regeneration with double innervation in hypoglossal and facial nerve nuclei for vibrissal muscle. CONCLUSION This study showed the effectiveness of IPJG with a hybrid PGA conduit especially in physiological examination.
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Affiliation(s)
- Wataru Kamei
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hajime Matsumine
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hironobu Osaki
- Department of Physiology, Division of Neurophysiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Yoshifumi Ueta
- Department of Physiology, Division of Neurophysiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Satoshi Tsunoda
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Mari Shimizu
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuki Hashimoto
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yosuke Niimi
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Mariko Miyata
- Department of Physiology, Division of Neurophysiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroyuki Sakurai
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
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31
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Shimizu M, Matsumine H, Osaki H, Ueta Y, Tsunoda S, Kamei W, Hashimoto K, Niimi Y, Watanabe Y, Miyata M, Sakurai H. Adipose-derived stem cells and the stromal vascular fraction in polyglycolic acid-collagen nerve conduits promote rat facial nerve regeneration. Wound Repair Regen 2018; 26:446-455. [PMID: 30118577 DOI: 10.1111/wrr.12665] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 08/05/2018] [Indexed: 01/20/2023]
Abstract
Adipose-derived stem cells (ADSCs) and the stromal vascular fraction (SVF) promote nerve regeneration. Biodegradable nerve conduits are used to treat peripheral nerve injuries, but their efficiencies are lower than those of autologous nerve grafts. This study developed biodegradable nerve conduits containing ADSCs and SVF and evaluated their facial nerve regenerating abilities in a rat model with a 7-mm nerve defect. SVF and ADSCs were individually poured into nerve conduits with polyglycolic acid-type I collagen as a scaffold (ADSCs and SVF groups). The conduits were grafted on to the nerve defects. As the control, the defect was bridged with polyglycolic acid-collagen nerve conduits without cells. At 13 weeks, after transplantation, the regenerated nerves were evaluated physiologically and histologically. The compound muscle action potential of the SVF group was significantly higher in amplitude than that of the control group. Electron microscopy showed that the axon diameter of the SVF group was the largest, followed by the ADSC group and control group with significant differences among them. The SVF group had the largest fiber diameter, followed by the ADSC group and control group with significant differences among them. The ADSC group had the highest myelin thickness, followed by the SVF group and control group with significant differences among them. Identical excellent promoting effects on nerve regeneration were observed in both the ADSC and SVF groups. Using SVF in conduits was more practical than using ADSCs because only the enzymatic process was required to prepare SVF, indicating that SVF could be more suitable to induce nerve regeneration.
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Affiliation(s)
- Mari Shimizu
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hajime Matsumine
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hironobu Osaki
- Department of Physiology I (Neurophysiology), Tokyo Women's Medical University, Tokyo, Japan
| | - Yoshifumi Ueta
- Department of Physiology I (Neurophysiology), Tokyo Women's Medical University, Tokyo, Japan
| | - Satoshi Tsunoda
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Wataru Kamei
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuki Hashimoto
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yosuke Niimi
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yorikatsu Watanabe
- Department of Plastic, Reconstructive and Aesthetic Surgery, Tokyo Metropolitan Police Hospital, Tokyo, Japan
| | - Mariko Miyata
- Department of Physiology I (Neurophysiology), Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroyuki Sakurai
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
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32
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Han L, Sun H, Tang P, Li P, Xie C, Wang M, Wang K, Weng J, Tan H, Ren F, Lu X. Mussel-inspired graphene oxide nanosheet-enwrapped Ti scaffolds with drug-encapsulated gelatin microspheres for bone regeneration. Biomater Sci 2018; 6:538-549. [PMID: 29376156 DOI: 10.1039/c7bm01060e] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Graphene oxide (GO) attracts considerable attention for biomedical applications owing to its unique nanostructure and remarkable physicochemical characteristics. However, it is challenging to uniformly deposit GO on chemically inert Ti scaffolds, which have good biocompatibility and wide applications in bone engineering. In this study, a GO-functionalized Ti porous scaffold (GO/Ti scaffold) was prepared by depositing GO onto polydopamine (PDA) modified Ti scaffolds. The mussel-inspired PDA modification facilitated the interaction between GO and Ti surfaces, leading to a uniform coverage of GO on Ti scaffolds. BMP2 and vancomycin (Van) were separately encapsulated into gelatin microspheres (GelMS). Then, drug-containing GelMS were assembled on GO/Ti scaffolds and anchored by the functional groups of GO. The modified scaffold independently delivered multiple biomolecules with different physiochemical properties, without interfering with each other. Thus, the GO/Ti scaffold has the dual functions of inducing bone regeneration and preventing bacterial infection. In summary, this mussel-inspired GO/Ti hybrid scaffold combined the good mechanical properties of Ti scaffolds and the advantages of GO nanosheets. GO nanosheets with their unique nanostructure and functional groups, together with GelMS on Ti scaffolds, are suitable carriers for drug delivery and provide adhesive sites for cell adhesion and create nanostructured environments for bone regeneration.
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Affiliation(s)
- Lu Han
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China.
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Ren C, Chen X, Du N, Geng S, Hu Y, Liu X, Wu X, Lin Y, Bai X, Yin W, Cheng S, Yang L, Zhang Y. Low-intensity pulsed ultrasound promotes Schwann cell viability and proliferation via the GSK-3β/β-catenin signaling pathway. Int J Biol Sci 2018; 14:497-507. [PMID: 29805301 PMCID: PMC5968842 DOI: 10.7150/ijbs.22409] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 02/16/2018] [Indexed: 12/17/2022] Open
Abstract
Background: It has been reported that ultrasound enhances peripheral nerve regeneration, but the mechanism remains elusive. Low-intensity pulsed ultrasound (LIPUS) has been reported to enhance proliferation and alter protein production in various types of cells. In this study, we detected the effects of LIPUS on Schwann cells. Material and methods: Schwann cells were separated from new natal Sprague-Dawley rat sciatic nerves and were cultured and purified. The Schwann cells were treated by LIPUS for 10 minutes every day, with an intensity of 27.37 mW/cm2. After treatment for 5 days, MTT, EdU staining, and flow cytometry were performed to examine cell viability and proliferation. Neurotrophic factors, including FGF, NGF, BDNF, and GDNF, were measured by western blot and real-time PCR. GSK-3β, p-GSK-3β, β-catenin and Cyclin D1 protein levels were detected using a western blot analysis. The expression of Cyclin D1 was also detected by immunofluorescence. Results: MTT and EdU staining showed that LIPUS increased the Schwann cells viability and proliferation. Compared to the control group, LIPUS increased the expression of growth factors and neurotrophic factors, including FGF, NGF, BDNF, GDNF, and Cyclin D1. Meanwhile, GSK-3β activity was inhibited in the LIPUS group as demonstrated by the increased level of p-GSK-3β and the ratio of the p-GSK-3β/GSK-3β level. The mRNA and protein expressions of β-catenin were increased in the LIPUS group. However, SB216763, a GSK-3β inhibitor, reversed the effects of LIPUS on Schwann cells. Conclusion: LIPUS promotes Schwann cell viability and proliferation by increasing Cyclin D1 expression via enhancing the GSK-3β/β-catenin signaling pathway.
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Affiliation(s)
- Cong Ren
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150086, China
| | - Xiaohui Chen
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Ning Du
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Shuo Geng
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150001, China
| | - Yingying Hu
- Department of Pharmacy, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Xin Liu
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Xianxian Wu
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Yuan Lin
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Xue Bai
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Wenzhe Yin
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150086, China
| | - Shi Cheng
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150086, China
| | - Lei Yang
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150001, China
| | - Yong Zhang
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
- Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Harbin, Heilongjiang Province 150086, China
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Bayrak AF, Olgun Y, Ozbakan A, Aktas S, Kulan CA, Kamaci G, Demir E, Yilmaz O, Olgun L. The Effect of Insulin Like Growth Factor-1 on Recovery of Facial Nerve Crush Injury. Clin Exp Otorhinolaryngol 2017; 10:296-302. [PMID: 28264555 PMCID: PMC5678033 DOI: 10.21053/ceo.2016.00997] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 12/30/2016] [Accepted: 01/09/2017] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES The aim of this study is to investigate the efficacy of locally applied insulin-like growth factor 1 (IGF-1) on the recovery of facial nerve functions after crush injury in a rabbit model. METHODS The rabbits were randomly assigned into three groups. Group 1 consisted of the rabbits with crush injury alone; group 2, the animals applied saline solution onto the crushed facial nerve and group 3, IGF-1 implemented to the nerve in the same manner. Facial nerve injury was first electrophysiologically studied on 10th and 42nd days of the procedure. The damage to the facial nerves was then investigated histopathologically, after sacrification of the animals. RESULTS In the electrophysiological study, compound muscle action potential amplitudes of the crushed nerves in the second group were decreased. In pathological specimens of the first and second groups, the orders of axons were distorted; demyelination and proliferation of Schwann cells were observed. However, in IGF-1 treated group axonal order and myelin were preserved, and Schwann cell proliferation was close to normal (P<0.05). CONCLUSION Local application of IGF-1 in a slow releasing gel was found efficacious in the recovery of the facial nerve crush injury in rabbits. IGF-1 was considered worthy of being tried in clinical studies in facial nerve injury cases.
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Affiliation(s)
- Asuman Feda Bayrak
- Otolaryngology Department, Izmir Ataturk Training and Research Hospital, Izmir, Turkey
| | - Yuksel Olgun
- Otolaryngology Department, Dokuz Eylul University Medical Faculty, Izmir, Turkey
| | - Ayla Ozbakan
- Otorhinolaryngology Department, Kutahya Simav State Hospital, Kutahya, Turkey
| | - Safiye Aktas
- Basic Oncology Department, Dokuz Eylul University, Institue of Oncology, Izmir, Turkey
| | - Can Ahmet Kulan
- Neurology Department, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Gonca Kamaci
- Dokuz Eylul University, Animal Laboratory, Izmir, Turkey
| | - Emine Demir
- Otorhinolaryngology Department, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Osman Yilmaz
- Dokuz Eylul University, Animal Laboratory, Izmir, Turkey
| | - Levent Olgun
- Otorhinolaryngology Department, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
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Si HB, Zeng Y, Lu YR, Cheng JQ, Shen B. Control-released basic fibroblast growth factor-loaded poly-lactic-co-glycolic acid microspheres promote sciatic nerve regeneration in rats. Exp Ther Med 2016; 13:429-436. [PMID: 28352311 PMCID: PMC5348676 DOI: 10.3892/etm.2016.4013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 10/04/2016] [Indexed: 02/05/2023] Open
Abstract
Although peripheral nerve injury may result in a loss of function in innervated areas, the most effective method for nerve regeneration remains to be determined. The aim of the present study was to investigate the effect of control-released basic fibroblast growth factor (bFGF)-loaded poly-lactic-co-glycolic acid (PLGA) microspheres on sciatic nerve regeneration following injury in rats. bFGF-PLGA microspheres were prepared and their characteristics were evaluated. The sciatic nerve was segmentally resected to create a 10 mm defect in 36 Sprague Dawley (SD) rats and, following the anastomosis of the nerve ends with a silicone tube, bFGF-PLGA microspheres, free bFGF or PBS were injected into the tube (n=12 in each group). The outcome of nerve regeneration was evaluated using the sciatic function index (SFI), electrophysiological test and histological staining at 6 weeks and 12 weeks post-surgery. The bFGF-PLGA microspheres were successfully synthesized with an encapsulation efficiency of 66.43%. The recovery of SFI and electrophysiological values were significantly greater (P<0.05), and morphological and histological observations were significantly greater (P<0.05) in bFGF-PLGA microspheres and bFGF groups compared with those in the PBS group, and the quickest recovery was observed in the bFGF-PLGA microspheres group. In conclusion, the bFGF-PLGA microspheres may promote nerve regeneration and functional recovery in the sciatic nerve, and may have potential therapeutic applications in peripheral nerve regeneration.
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Affiliation(s)
- Hai-Bo Si
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China; Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yi Zeng
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yan-Rong Lu
- Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Jing-Qiu Cheng
- Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bin Shen
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Huang C, Orbay H, Tobita M, Miyamoto M, Tabata Y, Hyakusoku H, Mizuno H. Proapoptotic effect of control-released basic fibroblast growth factor on skin wound healing in a diabetic mouse model. Wound Repair Regen 2015; 24:65-74. [PMID: 26488443 DOI: 10.1111/wrr.12375] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 10/17/2015] [Indexed: 11/28/2022]
Abstract
The ability of basic fibroblast growth factor (bFGF) to improve wound healing is attenuated by its short half-life in free form. This study aimed to enhance skin wound healing in a diabetes mouse model while concomitantly decreasing scar formation using control-released bFGF together with acidic gelatin hydrogel microspheres (AGHMs). Bilateral full-thickness wounds (10 mm in diameter) were made on the backs of db/db mice. Forty-five mice were divided into three groups, and the base of the wound under the panniculus carnosus and the wound periphery were injected with phosphate-buffered saline (300 μL) containing (1) control-released bFGF (50 μg), (2) control-released bFGF (20 μg), or (3) AGHMs alone. The size of the wound area was recorded on each postoperative day (POD). Mice were sacrificed on postoperative day 4, 7, 10, 14, and 28, and skin wound specimens were obtained to assess the endothelium/angiogenesis index via cluster of differentiation 31 immunohistochemistry, the proliferation index via Ki-67 immunohistochemistry, and the myofibroblast and fibroblast apoptosis indices by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling and alpha-smooth muscle actin or vimentin staining, respectively. Epithelialization rates and indices of proliferation and myofibroblast/fibroblast apoptosis were higher in the bFGF groups than in the AGHM group, mainly within 2 weeks of injury. No dose-effect relationship was found for control-released bFGF, although the actions of 50 μg bFGF seemed to last longer than those of 20 μg bFGF. Therefore, control-released bFGF may accelerate diabetic skin wound healing and induce myofibroblast/fibroblast apoptosis, thereby reducing scar formation.
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Affiliation(s)
- Chenyu Huang
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan.,Department of Plastic and Reconstructive Surgery, Medical Center, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China.,Department of Plastic Surgery, Meitan General Hospital, Beijing, China
| | - Hakan Orbay
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan
| | - Morikuni Tobita
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | | | - Yasuhiko Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Hiko Hyakusoku
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan
| | - Hiroshi Mizuno
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
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Effectively Axonal-supercharged Interpositional Jump-Graft with an Artificial Nerve Conduit for Rat Facial Nerve Paralysis. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2015; 3:e416. [PMID: 26180717 PMCID: PMC4494486 DOI: 10.1097/gox.0000000000000397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 04/23/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Interpositional jump graft (IPJG) is a nerve graft axonally supercharged from the hypoglossal nerve. However, for using the technique, an autologous nerve, which should contain the great auricular and sural nerves, must be obtained. Depending on the donor site, unavoidable issues such as nerve disorders and postoperative scarring may appear. To reduce the issues, in this study, the authors developed an end-to-side neurorrhaphy technique with the recipient nerve and an artificial nerve conduit and investigated the efficacy of an IPJG with an artificial nerve conduit in a rat facial nerve paresis model. METHODS A ligature clip was used to crush the facial nerve trunk, thereby creating a partial facial nerve paresis model. An artificial nerve conduit was then prepared with a 10-mm-long silicone tube containing 10 μL type I collagen and used to create an IPJG between the facial nerve trunk and the hypoglossal nerve (the silicone tube group). Thirteen weeks after the surgery, the outcome was histologically and physiologically compared with conventional IPJG with autograft using the great auricular nerve. RESULTS Retrograde tracer test confirmed a double innervation by the facial and hypoglossal nerve nuclei. In the autograft and silicone tube groups, the regeneration of myelinated axons was observed. CONCLUSION In this study, the authors successfully developed an end-to-side neurorrhaphy technique with the recipient nerve and an artificial nerve conduit, and revealed that an IPJG in the conduit was effective in the rat facial nerve paresis model.
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Abstract
BACKGROUND Tissue engineering using biocompatible scaffolds, with or without cells, can permit surgeons to restore structure and function following tissue resection or in cases of congenital abnormality. Tracheal regeneration has emerged as a spearhead application of these technologies, whilst regenerative therapies are now being developed to treat most other diseases within otolaryngology. METHODS AND RESULTS A systematic review of the literature was performed using Ovid Medline and Ovid Embase, from database inception to 15 November 2014. A total of 561 papers matched the search criteria, with 76 fulfilling inclusion criteria. Articles were predominantly pre-clinical animal studies, reflecting the current status of research in this field. Several key human research articles were identified and discussed. CONCLUSION The main issues facing research in regenerative surgery are translation of animal model work into human models, increasing stem cell availability so it can be used to further research, and development of better facilities to enable implementation of these advances.
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Treatment of skin avulsion injuries with basic fibroblast growth factor. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2015; 3:e371. [PMID: 25973349 PMCID: PMC4422202 DOI: 10.1097/gox.0000000000000341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 02/26/2015] [Indexed: 11/25/2022]
Abstract
This report describes favorable outcomes in 9 patients with skin avulsion injuries of the extremities who underwent full-thickness skin grafting and basic fibroblast growth factor (bFGF) application. Following removal of contaminated subcutaneous fat tissue on the inside of skin, the avulsed skin was processed into a full-thickness skin graft, with as much of the skin used as possible irrespective of damage. Several drainage holes (5-10 mm in diameter) were made on the graft for drainage from the graft bed and to prevent seroma and hematoma formation. Genetically recombinant human bFGF was sprayed at a dose of 1 μg/cm(2) onto the graft bed, which was then covered with the graft and sutured. Pressure immobilization with ointment gauzes and elastic bandages was administered for 1 week postoperatively, and the surface of the skin grafts that did not take was scraped away, preserving the revascularized dermal component on the debrided raw surface as much as possible. bFGF was sprayed again onto the debrided surface to promote epithelialization. Wound closure was achieved in all cases with conservative therapy. The surgical procedure was effective in preventing postoperative ulcer formation and scar contracture and resulted in wound healing with the formation of good-quality, flexible scars.
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