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Ozawa S, Mukudai S, Kaneko M, Kinoshita S, Hashimoto K, Sugiyama Y, Hashimoto S, Akaki J, Hirano S. Anti-inflammatory and Antioxidant Effects of Japanese Herbal Medicine Kyoseihatekigan on Vocal Fold Wound Healing. J Voice 2024; 38:503-509. [PMID: 34836738 DOI: 10.1016/j.jvoice.2021.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The Japanese herbal medicine kyoseihatekigan (KHG) has been used to alleviate the symptoms of croaky voice and globus hystericus, and each of its components has anti-inflammatory and antioxidant effects. However, the mechanisms underlying these beneficial actions of KHG on the vocal folds remain largely unknown. We examined the effects of KHG on rat vocal fold wound healing and assessed its anti-inflammatory and antioxidant properties. STUDY DESIGN Animal model. METHODS The vocal folds of Sprague-Dawley rats were unilaterally injured under endoscopy. Rats were divided into three groups based on KHG dosing from pre injury day 4 to post injury day 3: 0 mg/kg/day (sham group), 500 mg/kg/day (1% KHG group) and 1000 mg/kg/day (2% KHG group). Histologic changes were examined to assess the degree of inflammation and oxidative stress at day 3, and fibrosis at day 56. In addition, gene expression related to pro-inflammatory cytokines and transforming growth factor-beta1 (TGF-β1) signaling was examined by quantitative real-time polymerase chain reaction (qPCR). RESULTS Histologic analysis showed that the 1% and 2% KHG treatments significantly decreased cell infiltration and the 4-hydroxy-2-nonenalx-immunopositive area, and increased hyaluronic acid at day 3. Both KHG treatments significantly decreased fibrosis at day 56. qPCR revealed that mRNA of interleukin-1β and cyclooxygenase-2 were significantly suppressed at day 1 and TGF-β1 mRNA was significantly downregulated at day 5 in both KHG groups. CONCLUSIONS The current findings suggest that KHG has anti-inflammatory and antioxidant effects in the early phase of vocal fold wound healing, which can lead to better wound healing with less scar formation.
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Affiliation(s)
- Satomi Ozawa
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shigeyuki Mukudai
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Mami Kaneko
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shota Kinoshita
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiko Hashimoto
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoichiro Sugiyama
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | | | - Junji Akaki
- Kobayashi Pharmaceutical Co., Ltd., Osaka, Japan
| | - Shigeru Hirano
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Ma JC, Wang ZN, Xi MF, Yin D, Jiang LF, Qi J. Experimental Study on the Effect of Caffeine Hydrogel on the Expression of TGF -β1, α-SMA and Collagen in Hypertrophic Scar of Rabbit Ears. J Burn Care Res 2024; 45:85-92. [PMID: 37526062 PMCID: PMC11023546 DOI: 10.1093/jbcr/irad115] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Indexed: 08/02/2023]
Abstract
This study evaluated the effects of topical use of caffeine hydrogel on hypertrophic scar in a rabbit ear wound model. Nine rabbits were randomly divided into three groups: control group, caffeine hydrogel group, and matrix group. Punched defects were established on each rabbit's ear which resulted in a hypertrophic scar. When the wound epithelialization and scar hyperplasia could be seen, control group did not do any treatment, while caffeine hydrogel group and matrix group were treated with caffeine hydrogel and hydrogel matrix, respectively. After 3 weeks of administration, the general morphological changes of scar were observed, and the scar tissue of rabbit ears was stained with HE and Masson. The relative expressions of TGF β-1, α-SMA, type I collagen, and type III collagen in scar tissue were detected by Western blot. In all three groups, findings showed that caffeine hydrogel can inhibit scar growth by reducing the expression of TGF β-1, reducing the proliferation of fibroblasts, improving collagen arrangement and reducing collagen deposition. The overall study shows efficacy and mechanism of caffeine. It concluded that caffeine could be an effective therapeutic agent for hypertrophicscars.
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Affiliation(s)
- Jiu-Cheng Ma
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong Jiangsu 226000, P.R. China
- Nantong University Medical School, Nantong Jiangsu 226000, P.R. China
| | - Zhao-Nan Wang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong Jiangsu 226000, P.R. China
- Nantong University Medical School, Nantong Jiangsu 226000, P.R. China
| | - Ming-Fan Xi
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong Jiangsu 226000, P.R. China
- Nantong University Medical School, Nantong Jiangsu 226000, P.R. China
| | - Dong Yin
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong Jiangsu 226000, P.R. China
- Nantong University Medical School, Nantong Jiangsu 226000, P.R. China
| | - Li-Fan Jiang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong Jiangsu 226000, P.R. China
- Nantong University Medical School, Nantong Jiangsu 226000, P.R. China
| | - Jun Qi
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong Jiangsu 226000, P.R. China
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Qin B, Wu S, Dong H, Deng S, Liu Y, Zhang W, Feng G, Lei L, Xie H. Accelerated Healing of Infected Diabetic Wounds by a Dual-Layered Adhesive Film Cored with Microsphere-Loaded Hydrogel Composite Dressing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:33207-33222. [PMID: 37418597 DOI: 10.1021/acsami.2c22650] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
Diabetic wounds, a prevalent chronic disease, are associated with older age. The hyperglycemic microenvironment in diabetic wounds significantly reduces the immune system, inducing bacterial invasion. The coupling of tissue repair and antibacterial treatment is critical for infected diabetic ulcer regeneration. In this study, a dual-layered sodium alginate/carboxymethyl chitosan (SA/CMCS) adhesive film cored with an SA-bFGF microsphere-loaded small intestine submucosa (SIS) hydrogel composite dressing with a graphene oxide (GO)-based antisense transformation system was developed to promote infected diabetic wound healing and bacterial eradication. Initially, our injectable SIS-based hydrogel composite stimulated angiogenesis, collagen deposition, and immunoregulation in diabetic wound repair. The GO-based transformation system subsequently inhibited bacterial viability in infected wounds by post-transformation regulation. Meanwhile, the SA/CMCS film provided stable adhesion covering the wound area to maintain a moist microenvironment, which promoted in situ tissue repair. Our findings provide a promising clinical translation strategy for promoting the healing of infected diabetic wounds.
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Affiliation(s)
- Boquan Qin
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
- Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, Med-X Center for Materials, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Shizhou Wu
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Hongxian Dong
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Shu Deng
- Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts 02215-1300, United States
| | - Yunjie Liu
- West China School of Public Health, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Wanli Zhang
- Core Facilities of West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Guoying Feng
- College of Electronics and Information Engineering, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Lei Lei
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Huiqi Xie
- Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, Med-X Center for Materials, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
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Yousefi-Mashouf H, Bailly L, Orgéas L, Henrich Bernardoni N. Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear. Front Bioeng Biotechnol 2023; 10:1094197. [PMID: 36714620 PMCID: PMC9877534 DOI: 10.3389/fbioe.2022.1094197] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/26/2022] [Indexed: 01/13/2023] Open
Abstract
Introduction: Among the biopolymers used to make hydrogels, gelatin is very attractive due to its biocompatibility, biodegradability and versatile physico-chemical properties. A proper and complete characterization of the mechanical behavior of these hydrogels is critical to evaluate the relevance of one formulation over another for a targeted application, and to optimise their processing route accordingly. Methods: In this work, we manufactured neat gelatin and gelatin covalently cross-linked with glutaraldehyde at various concentrations, yielding to hydrogels with tunable mechanical properties that we characterized under finite strain, cyclic tension, compression and shear loadings. Results and Discussion: The role of both the chemical formulation and the kinematical path on the mechanical performances of the gels is highlighted. As an opening towards biomedical applications, the properties of the gels are confronted to those of native soft tissues particularly complicated to restore, the human vocal folds. A specific cross-linked hydrogel is selected to mimic vocal-fold fibrous tissues.
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Affiliation(s)
- Hamid Yousefi-Mashouf
- University Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, 3SR, Grenoble, France,University Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, GIPSA-lab, Grenoble, France
| | - Lucie Bailly
- University Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, 3SR, Grenoble, France,*Correspondence: Lucie Bailly,
| | - Laurent Orgéas
- University Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, 3SR, Grenoble, France
| | - Nathalie Henrich Bernardoni
- University Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, GIPSA-lab, Grenoble, France
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5
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Tindell RK, McPhail MJ, Myers CE, Neubauer J, Hintze JM, Lott DG, Holloway JL. Trilayered Hydrogel Scaffold for Vocal Fold Tissue Engineering. Biomacromolecules 2022; 23:4469-4480. [DOI: 10.1021/acs.biomac.1c01149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R. Kevin Tindell
- Chemical Engineering; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Michael J. McPhail
- Head and Neck Regenerative Medicine Laboratory, Mayo Clinic Arizona, Scottsdale, Arizona 85259-5499, United States
| | - Cheryl E. Myers
- Head and Neck Regenerative Medicine Laboratory, Mayo Clinic Arizona, Scottsdale, Arizona 85259-5499, United States
| | - Juergen Neubauer
- Head and Neck Regenerative Medicine Laboratory, Mayo Clinic Arizona, Scottsdale, Arizona 85259-5499, United States
| | - Justin M. Hintze
- Head and Neck Regenerative Medicine Laboratory, Mayo Clinic Arizona, Scottsdale, Arizona 85259-5499, United States
| | - David G. Lott
- Head and Neck Regenerative Medicine Laboratory, Mayo Clinic Arizona, Scottsdale, Arizona 85259-5499, United States
- Division of Laryngology, Mayo Clinic Arizona, Phoenix, Arizona 85054, United States
| | - Julianne L. Holloway
- Chemical Engineering; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
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The Regenerative Effects of c-Met Agonistic Antibodies in Vocal Fold Atrophy. Int J Mol Sci 2022; 23:ijms23147818. [PMID: 35887165 PMCID: PMC9318927 DOI: 10.3390/ijms23147818] [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: 05/18/2022] [Revised: 07/07/2022] [Accepted: 07/13/2022] [Indexed: 02/05/2023] Open
Abstract
Background: Atrophy of the vocal folds and the accompanying glottic insufficiency affect the quality of life. Although growth factors have been used to treat muscle atrophy, their effectiveness is limited by their short half-life. Methods: In total, 15 rabbits and 24 rats were used for the study. The right recurrent laryngeal nerves of all animals were transected. One month following nerve transection, PBS (PBS group), rHGF (HGF group), or a c-Met agonistic antibody (c-Met group) was injected into the paralyzed vocal folds. The larynges of the rabbits were harvested from each group for histologic examination and subjected to PCR analysis. Results: Cross-sectional areas (CSAs) of thyroarytenoid muscles were evaluated. The c-Met group had increased CSAs compared to the PBS and HGF groups, but there were no significant differences compared to normal controls. The expression levels of myogenesis-related genes were evaluated three weeks after the injection. The expression levels of myosin heavy chain IIa were significantly increased in the PBS group, while the expression levels of MyoD were increased in the c-Met group. Conclusions: The c-Met agonistic antibody showed promise for promoting muscle regeneration in a vocal fold palsy model.
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Dolivo DM. Anti-fibrotic effects of pharmacologic FGF-2: a review of recent literature. J Mol Med (Berl) 2022; 100:847-860. [PMID: 35484303 DOI: 10.1007/s00109-022-02194-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/09/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023]
Abstract
Fibrosis is a process of pathological tissue repair that replaces damaged, formerly functional tissue with a non-functional, collagen-rich scar. Complications of fibrotic pathologies, which can arise in numerous organs and from numerous conditions, result in nearly half of deaths in the developed world. Despite this, therapies that target fibrosis at its mechanistic roots are still notably lacking. The ubiquity of the occurrence of fibrosis in myriad organs emphasizes the fact that there are shared mechanisms underlying fibrotic conditions, which may serve as common therapeutic targets for multiple fibrotic diseases of varied organs. Thus, study of the basic science of fibrosis and of anti-fibrotic modalities is critical to therapeutic development and may have potential to translate across organs and disease states. Fibroblast growth factor 2 (FGF-2) is a broadly studied member of the fibroblast growth factors, a family of multipotent cytokines implicated in diverse cellular and tissue processes, which has previously been recognized for its anti-fibrotic potential. However, the mechanisms underlying this potential are not fully understood, nor is the potential for its use to ameliorate fibrosis in diverse pathologies and tissues. Presented here is a review of recent literature that sheds further light on these questions, with the hopes of inspiring further research into the mechanisms underlying the anti-fibrotic activities of FGF-2, as well as the disease conditions for which pharmacologic FGF-2 might be a useful option in the future.
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Tanigami Y, Kawai Y, Kaba S, Uozumi R, Ohnishi H, Kita T, Omori K, Kishimoto Y. Establishment of a radiation-induced vocal fold fibrosis mouse model. Biochem Biophys Res Commun 2022; 601:31-37. [DOI: 10.1016/j.bbrc.2022.02.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/18/2022] [Indexed: 11/26/2022]
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9
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Ogawa M, Mukudai S, Sugiyama Y, Matsushita H, Kinoshita S, Ozawa S, Hashimoto K, Fuse S, Kaneko M, Nakanishi Y, Yoshizaki T, Sotozono C, Hirano S. The Effects of Amniotic Membrane Transplantation on Vocal Fold Regeneration. Laryngoscope 2021; 132:2017-2025. [PMID: 34951490 DOI: 10.1002/lary.29997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/05/2021] [Accepted: 12/10/2021] [Indexed: 11/08/2022]
Abstract
OBJECTIVES/HYPOTHESIS Vocal fold (VF) scar and sulcus cause severe vocal problems, but optimal methods have not been established. Total replacement of the mucosa is required particularly for cases in which the whole lamina propria is occupied by severe fibrosis and vibratory function is totally lost. The amniotic membrane (AM) has been proven to have regenerative potential, as it contains stem cells and growth factors. The current study investigated the biocompatibility and effects of AM for regeneration of the VF mucosa. STUDY DESIGN In vitro and in vivo studies. METHODS Vocal fold fibroblasts (VFFs) from 13 Sprague-Dawley rats were seeded on AM and subjected to histology and immunohistochemistry, and gene expressions in the VFFs on AM were examined in in vitro study. Twelve New Zealand White rabbits were used in in vivo study. VFs were stripped down and were reconstructed with AM. The regenerative effects were examined 3 months later by histological examination. RESULTS In vitro study indicated VFFs survived on AM and stained positively for Ki67, vimentin, and fibronectin. Gene expressions of Has1, Has2, and Hgf were significantly increased in the VFFs on AM compared with the other groups. The in vivo study indicated AM-transplanted VFs showed a significantly higher density of hyaluronic acid and lower density of collagen compared with sham VFs. CONCLUSIONS The current preliminary study suggests biocompatibility and possible regenerative effects of AM for VFs. LEVEL OF EVIDENCE NA Laryngoscope, 2021.
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Affiliation(s)
- Machiko Ogawa
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Otolaryngology Head and Neck Surgery, Kanazawa University, Kanazawa, Japan
| | - Shigeyuki Mukudai
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoichiro Sugiyama
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroki Matsushita
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shota Kinoshita
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satomi Ozawa
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiko Hashimoto
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinya Fuse
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mami Kaneko
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yosuke Nakanishi
- Department of Otolaryngology Head and Neck Surgery, Kanazawa University, Kanazawa, Japan
| | - Tomokazu Yoshizaki
- Department of Otolaryngology Head and Neck Surgery, Kanazawa University, Kanazawa, Japan
| | - Chie Sotozono
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shigeru Hirano
- Department of Otolaryngology Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Xue Y, Qi C, Dong Y, Zhang L, Liu X, Liu Y, Wang S. Poly (γ-glutamic acid)/chitooligo-saccharide/papain hydrogel prevents hypertrophic scar during skin wound healing. J Biomed Mater Res B Appl Biomater 2021; 109:1724-1734. [PMID: 33739603 DOI: 10.1002/jbm.b.34830] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 02/02/2021] [Accepted: 02/14/2021] [Indexed: 12/18/2022]
Abstract
Hypertrophic scar, a common skin disorder typically caused by deep burns or scald were usually treated via surgical resection, laser irradiation, and drugs. However, all the approaches were always companied with complications and devastatingly subjected to relapse, which indicated the urgently need of an effective treatment method. In this project, a new hydrogel composed of Poly (γ-glutamic acid) (γ-PGA), Chitooligo-saccharide, and Papain was developed via crosslinker (EDC&NHS), and characterized with good porously three-dimensional network structure, good water absorption, and mechanical properties. Besides, G/C/P hydrogel facilitated cell adhesion and inhibited excessive proliferation of fibroblasts, which indicated the potential of in vivo application. After applied onto skin wound healing in vivo on a rabbit ear skin wound model, G/C/P hydrogel inhibited excessive collagen deposition and the generation of hyperplastic scars effectively during wound healing. The hydrogel described here provide a new platform for regeneration field and hold great promise for solving serious skin disorder.
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Affiliation(s)
- Yueming Xue
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Chunxiao Qi
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Yunsheng Dong
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Lin Zhang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Xiangsheng Liu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Yufei Liu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Shufang Wang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
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Xu H, Fan GK. The Role of Cytokines in Modulating Vocal Fold Fibrosis: A Contemporary Review. Laryngoscope 2020; 131:139-145. [PMID: 32293731 DOI: 10.1002/lary.28507] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/11/2019] [Accepted: 12/29/2019] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Vocal fold (VF) scarring and laryngeal stenosis are a significant clinical challenge. Excessive scar formation causes low voice quality or even life-threatening obstructions. Cytokines are thought to modulate multiple steps of the establishment of VF fibrosis, but there is no systematic report regarding their role in modulating VF fibrosis. This review aims to investigate the role of cytokines in modulating vocal fold fibrosis. STUDY DESIGN Literature review. METHODS This review searched for all relevant peer publications in English for the period 2009 to 2019 in the PubMed database using search terms: "laryngeal stenosis," "vocal fold scarring," and "cytokines." A thorough investigation of the methods and results of the reviewed studies was performed. RESULTS Comprehensive research in various studies, including analyses of prostaglandin E2 (PGE2), granulocyte-macrophage colony-stimulating factor (GM-CSF), hepatocyte growth factor (HGF), basic fibroblast growth factor (bFGF), transforming growth factor-β3 (TGF-β3), and interleukin-10 (IL-10), supports cytokine therapy for VF scarring and laryngeal stenosis to some extent. A few clinical studies on this topic support the conclusion that HGF and bFGF can be selected as effective drugs, and no serious side effects were found. CONCLUSIONS This review describes the potential of cytokines for modulating the process of VF fibrogenesis, although cytokines are still an unproven treatment method. As no ideal drugs exist, cytokines may be considered the candidate treatment for preventing VF fibrogenesis. Laryngoscope, 131:139-145, 2021.
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Affiliation(s)
- Haoyuan Xu
- Department of Otolaryngology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Guo-Kang Fan
- Department of Otolaryngology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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12
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Ma Y, Long J, Amin MR, Branski RC, Damrose EJ, Sung CK, Achlatis S, Kearney A, Chhetri DK. Autologous fibroblasts for vocal scars and age-related atrophy: A randomized clinical trial. Laryngoscope 2019; 130:2650-2658. [PMID: 31804729 DOI: 10.1002/lary.28453] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 11/04/2019] [Accepted: 11/18/2019] [Indexed: 12/31/2022]
Abstract
OBJECTIVES/HYPOTHESIS To assess the safety and efficacy of autologous cultured fibroblasts (ACFs) to treat dysphonia related to vocal fold scar and age-related vocal atrophy (ARVA). STUDY DESIGN Randomized, double-blinded, placebo-controlled, multi-institutional, phase II trial. METHODS ACFs were expanded from punch biopsies of the postauricular skin in each subject; randomization was 2:1 (treatment vs. placebo). Three injections of 1-2 × 107 cells or placebo saline was performed at 4-week intervals for each vocal fold. Follow-up was performed at 4, 8, and 12 months. The primary outcome was improved mucosal waves. Secondary outcomes included Voice Handicap Index (VHI)-30, patient reported voice quality outcomes, and perceptual analysis of voice. RESULTS Fifteen subjects received ACF and six received saline injections. At 4, 8, and 12 months after ACF treatments, a significant improvement in mucosal wave grade relative to baseline was observed in both vocal scar and ARVA groups. Relative to control group, mucosal waves were significantly improved in the ARVA group at 4 and 8 months. Perceptual analysis significantly improved in the vocal scar group 12 months after ACF treatments compared to controls. Vocal scar group reported significantly improved vocal quality from baseline. VHI and expert rater voice grade improved in both groups, but did not achieve significance. No adverse events related to fibroblast injections were observed. CONCLUSIONS In this cohort, injection of ACFs into the vocal fold lamina propria (LP) was safe and significantly improved mucosal waves in patients with vocal scar and ARVA. ACF may hold promise to reconstruct the LP. LEVEL OF EVIDENCE 1 Laryngoscope, 130:2650-2658, 2020.
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Affiliation(s)
- Yue Ma
- Department of Head and Neck Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California
| | - Jennifer Long
- Department of Head and Neck Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California
| | - Milan R Amin
- Department of Otolaryngology-Head and Neck Surgery, New York University Voice Center, New York University School of Medicine, New York, New York
| | - Ryan C Branski
- Department of Otolaryngology-Head and Neck Surgery, New York University Voice Center, New York University School of Medicine, New York, New York
| | - Edward J Damrose
- Department of Otolaryngology-Head and Neck Surgery, Stanford School of Medicine, Stanford University, Stanford, California, U.S.A
| | - Chih-Kwang Sung
- Department of Otolaryngology-Head and Neck Surgery, Stanford School of Medicine, Stanford University, Stanford, California, U.S.A
| | - Stratos Achlatis
- Department of Otolaryngology-Head and Neck Surgery, New York University Voice Center, New York University School of Medicine, New York, New York
| | - Ann Kearney
- Department of Otolaryngology-Head and Neck Surgery, Stanford School of Medicine, Stanford University, Stanford, California, U.S.A
| | - Dinesh K Chhetri
- Department of Head and Neck Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California
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Imaizumi M, Nakamura R, Nakaegawa Y, Dirja BT, Tada Y, Tani A, Sugino T, Tabata Y, Omori K. Regenerative potential of basic fibroblast growth factor contained in biodegradable gelatin hydrogel microspheres applied following vocal fold injury: Early effect on tissue repair in a rabbit model. Braz J Otorhinolaryngol 2019; 87:274-282. [PMID: 31711791 PMCID: PMC9422641 DOI: 10.1016/j.bjorl.2019.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/19/2019] [Accepted: 09/04/2019] [Indexed: 11/18/2022] Open
Abstract
Introduction Postoperative dysphonia is mostly caused by vocal fold scarring, and careful management of vocal fold surgery has been reported to reduce the risk of scar formation. However, depending on the vocal fold injury, treatment of postoperative dysphonia can be challenging. Objective The goal of the current study was to develop a novel prophylactic regenerative approach for the treatment of injured vocal folds after surgery, using biodegradable gelatin hydrogel microspheres as a drug delivery system for basic fibroblast growth factor. Methods Videoendoscopic laryngeal surgery was performed to create vocal fold injury in 14 rabbits. Immediately following this procedure, biodegradable gelatin hydrogel microspheres with basic fibroblast growth factor were injected in the vocal fold. Two weeks after injection, larynges were excised for evaluation of vocal fold histology and mucosal movement. Results The presence of poor vibratory function was confirmed in the injured vocal folds. Histology and digital image analysis demonstrated that the injured vocal folds injected with gelatin hydrogel microspheres with basic fibroblast growth factor showed less scar formation, compared to the injured vocal folds injected with gelatin hydrogel microspheres only, or those without any injection. Conclusion A prophylactic injection of basic fibroblast growth factor -containing biodegradable gelatin hydrogel microspheres demonstrates a regenerative potential for injured vocal folds in a rabbit model.
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Affiliation(s)
- Mitsuyoshi Imaizumi
- Fukushima Medical University, School of Medicine, Department of Otolaryngology, Fukushima, Japan.
| | | | - Yuta Nakaegawa
- Fukushima Medical University, School of Medicine, Department of Otolaryngology, Fukushima, Japan
| | - Bayu Tirta Dirja
- Fukushima Medical University, School of Medicine, Department of Otolaryngology, Fukushima, Japan
| | - Yasuhiro Tada
- Fukushima Medical University, School of Medicine, Department of Otolaryngology, Fukushima, Japan
| | - Akiko Tani
- Fukushima Medical University, School of Medicine, Department of Otolaryngology, Fukushima, Japan
| | - Takashi Sugino
- Shizuoka Cancer Center, Division of Pathology, Shizuoka, Japan
| | - Yasuhiko Tabata
- Kyoto University, Institute for Frontier Life and Medical Sciences, Department of Regeneration Science and Engineering, Laboratory of Biomaterials, Kyoto, Japan
| | - Koichi Omori
- Kyoto University, Department of Otolaryngology, Kyoto, Japan
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14
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Pathophysiology of Fibrosis in the Vocal Fold: Current Research, Future Treatment Strategies, and Obstacles to Restoring Vocal Fold Pliability. Int J Mol Sci 2019; 20:ijms20102551. [PMID: 31137626 PMCID: PMC6567075 DOI: 10.3390/ijms20102551] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 05/21/2019] [Indexed: 12/22/2022] Open
Abstract
Communication by voice depends on symmetrical vibrations within the vocal folds (VFs) and is indispensable for various occupations. VF scarring is one of the main reasons for permanent dysphonia and results from injury to the unique layered structure of the VFs. The increased collagen and decreased hyaluronic acid within VF scars lead to a loss of pliability of the VFs and significantly decreases their capacity to vibrate. As there is currently no definitive treatment for VF scarring, regenerative medicine and tissue engineering have become increasingly important research areas within otolaryngology. Several recent reviews have described the problem of VF scarring and various possible solutions, including tissue engineered cells and tissues, biomaterial implants, stem cells, growth factors, anti-inflammatory cytokines antifibrotic agents. Despite considerable research progress, these technical advances have not been established as routine clinical procedures. This review focuses on emerging techniques for restoring VF pliability using various approaches. We discuss our studies on interactions among adipose-derived stem/stromal cells, antifibrotic agents, and VF fibroblasts using an in vitro model. We also identify some obstacles to advances in research.
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15
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Chen H, Erndt-Marino J, Diaz-Rodriguez P, Kulwatno J, Jimenez-Vergara AC, Thibeault SL, Hahn MS. In vitro evaluation of anti-fibrotic effects of select cytokines for vocal fold scar treatment. J Biomed Mater Res B Appl Biomater 2019; 107:1056-1067. [PMID: 30184328 PMCID: PMC7011756 DOI: 10.1002/jbm.b.34198] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/30/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023]
Abstract
Scarring of the vocal fold lamina propria (LP) can cause considerable voice disorders due to reduced pliability in scar tissue, attributed in part to abnormal extracellular matrix (ECM) deposition produced by the fibrotic vocal fold fibroblast (fVFF). Cytokines with anti-fibrotic potential have been investigated to limit abnormal LP ECM, but are limited by the need for repeat injections. Moreover, the potentially significant role played by activated macrophages (AMOs) is usually not considered even though the interaction between AMO and fibrotic fibroblasts is known to regulate scar formation across different tissues. AMO are also regulated by cytokines that are used for LP scar removal, but little is known about AMO behaviors in response to these cytokines within the context of LP scar. In the present study, we evaluated anti-fibrotic effects of hepatocyte growth factor (HGF), interleukin-10 (IL-10) and interleukin-6 (IL-6) in a 3D, in vitro fVFF-AMO co-culture system using poly(ethylene glycol) diacrylate (PEGDA) hydrogels. Data from all cytokines was synthesized into a heat-map that enabled assessment of specific associations between AMO and fVFF phenotypes. Cumulatively, our results indicated that both HGF and IL-10 are potentially anti-fibrotic (reduction in fibrotic markers and enhancement in normal, anti-fibrotic VFF markers), while IL-6 displays more complex, marker specific effects. Possible associations between AMO and fVFF phenotypes were found and may highlight a potential desirable macrophage phenotype. These data support the therapeutic potential of HGF and IL-10 for LP scar treatment, and shed light on future strategies aimed at targeting specific AMO phenotypes. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1056-1067, 2019.
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Affiliation(s)
- Hongyu Chen
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Josh Erndt-Marino
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | | | - Jonathan Kulwatno
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | | | - Susan L Thibeault
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Mariah S. Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
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16
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Walimbe T, Calve S, Panitch A, Sivasankar MP. Incorporation of types I and III collagen in tunable hyaluronan hydrogels for vocal fold tissue engineering. Acta Biomater 2019; 87:97-107. [PMID: 30708064 DOI: 10.1016/j.actbio.2019.01.058] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/16/2019] [Accepted: 01/28/2019] [Indexed: 11/28/2022]
Abstract
Vocal fold scarring is the fibrotic manifestation of a variety of voice disorders, and is difficult to treat. Tissue engineering therapies provide a potential strategy to regenerate the native tissue microenvironment in order to restore vocal fold functionality. However, major challenges remain in capturing the complexity of the native tissue and sustaining regeneration. We hypothesized that hydrogels with tunable viscoelastic properties that present relevant biological cues to cells might be better suited as therapeutics. Herein, we characterized the response of human vocal fold fibroblasts to four different biomimetic hydrogels: thiolated hyaluronan (HA) crosslinked with poly(ethylene glycol) diacrylate (PEGDA), HA-PEGDA with type I collagen (HA-Col I), HA-PEGDA with type III collagen (HA-Col III) and HA-PEGDA with type I and III collagen (HA-Col I-Col III). Collagen incorporation allowed for interpenetrating fibrils of collagen within the non-fibrillar HA network, which increased the mechanical properties of the hydrogels. The addition of collagen fibrils also reduced hyaluronidase degradation of HA and hydrogel swelling ratio. Fibroblasts encapsulated in the HA-Col gels adopted a spindle shaped fibroblastic morphology by day 7 and exhibited extensive cytoskeletal networks by day 21, suggesting that the incorporation of collagen was essential for cell adhesion and spreading. Cells remained viable and synthesized new DNA throughout 21 days of culture. Gene expression levels significantly differed between the cells encapsulated in the different hydrogels. Relative fold changes in gene expression of MMP1, COL1A1, fibronectin and decorin suggest higher degrees of remodeling in HA-Col I-Col III gels in comparison to HA-Col I or HA-Col III hydrogels, suggesting that the former may better serve as a natural biomimetic hydrogel for tissue engineering applications. STATEMENT OF SIGNIFICANCE: Voice disorders affect about 1/3rd of the US population and significantly reduce quality of life. Patients with vocal fold fibrosis have few treatment options. Tissue engineering therapies provide a potential strategy to regenerate the native tissue microenvironment in order to restore vocal fold functionality. Various studies have used collagen or thiolated hyaluronan (HA) with gelatin as potential tissue engineering therapies. However, there is room for improvement in providing cells with more relevant biological cues that mimic the native tissue microenvironment and sustain regeneration. The present study introduces the use of type I collagen and type III collagen along with thiolated HA as a natural biomimetic hydrogel for vocal fold tissue engineering applications.
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Affiliation(s)
- Tanaya Walimbe
- Weldon School of Biomedical Engineering, Purdue University, United States
| | - Sarah Calve
- Weldon School of Biomedical Engineering, Purdue University, United States
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California, Davis, United States.
| | - M Preeti Sivasankar
- Weldon School of Biomedical Engineering, Purdue University, United States; Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, IN, United States
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17
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Aoki S, Fujii M, Fujie T, Nishiwaki K, Miyazaki H, Saitoh D, Takeoka S, Kiyosawa T, Kinoshita M. The efficacy of basic fibroblast growth factor-loaded poly(lactic-co
-glycolic acid) nanosheet for mouse wound healing. Wound Repair Regen 2018; 25:1008-1016. [DOI: 10.1111/wrr.12604] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 09/26/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Shimpo Aoki
- Department of Plastic Surgery; National Defense Medical College; Saitama Japan
| | - Mao Fujii
- Department of Life Science and Medical Bioscience; Graduate School of Advanced Science and Engineering, Waseda University; Tokyo Japan
| | - Toshinori Fujie
- Waseda Institute for Advanced Study, Waseda University; Tokyo Japan
- Japan Science and Technology Agency, PRESTO; Saitama Japan
| | - Keisuke Nishiwaki
- Department of Life Science and Medical Bioscience; Graduate School of Advanced Science and Engineering, Waseda University; Tokyo Japan
| | - Hiromi Miyazaki
- Division of Traumatology; Research Institute, National Defense Medical College; Saitama Japan
| | - Daizoh Saitoh
- Division of Traumatology; Research Institute, National Defense Medical College; Saitama Japan
| | - Shinji Takeoka
- Department of Life Science and Medical Bioscience; Graduate School of Advanced Science and Engineering, Waseda University; Tokyo Japan
| | - Tomoharu Kiyosawa
- Department of Plastic Surgery; National Defense Medical College; Saitama Japan
| | - Manabu Kinoshita
- Department of Immunology and Microbiology; National Defense Medical College; Saitama Japan
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18
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Pitman MJ, Kurita T, Powell ME, Kimball EE, Mizuta M, Chang S, Garrett CG, Rousseau B. Vibratory function and healing outcomes after small intestinal submucosa biomaterial implantation for chronic vocal fold scar. Laryngoscope 2017; 128:901-908. [PMID: 29105772 DOI: 10.1002/lary.26883] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/04/2017] [Indexed: 01/07/2023]
Abstract
OBJECTIVES/HYPOTHESIS Vocal fold scar is a major cause of dysphonia, and optimal treatments do not currently exist. Small intestinal submucosa (SIS) is a biomaterial developed for the treatment of a variety of pathologies. The purpose of this study was to investigate the effects of SIS implantation on tissue remodeling in scarred vocal folds using routine staining, immunohistochemistry, and high-speed videoendoscopy (HSV). STUDY DESIGN Prospective, blinded group analysis. METHODS Thirteen New Zealand White rabbits underwent a vocal fold scarring procedure followed by microflap elevation with or without SIS implantation. Seven months later, they underwent a phonation procedure with HSV and laryngeal harvest. Alcian blue and elastica van Gieson staining and immunohistochemistry for collagen types I and III were used to evaluate histological healing outcomes. Dynamic functional remodeling of the scarred vocal fold in the presence of SIS implants was evaluated using HSV imaging to capture restoration of vibratory amplitude, amplitude ratio, and left-right phase symmetry. RESULTS Density of collagen I was significantly decreased in SIS versus microflap-treated vocal folds. No differences were found between groups for hyaluronic acid, elastin, or collagen type III. Organization of elastin in the subepithelial region appeared to affect amplitude of vibration and the shape of the vocal fold edge. CONCLUSIONS SIS implantation into chronic scar reduced the density of collagen I deposits. There was no evidence of a negative impact or complication from SIS implantation. Regardless of treatment type, organization of elastin in the subepithelial region may be important to vibratory outcomes. LEVEL OF EVIDENCE NA. Laryngoscope, 128:901-908, 2018.
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Affiliation(s)
- Michael J Pitman
- Department of Otolaryngology-Head and Neck Surgery, Voice and Swallowing Institute, Columbia University Medical Center/New York Presbyterian, New York, New York, U.S.A
| | - Takashi Kurita
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee, U.S.A
| | - Maria E Powell
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee, U.S.A
| | - Emily E Kimball
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, U.S.A
| | - Masanobu Mizuta
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Siyuan Chang
- Corning Research and Development Corporation, Painted Post, New York, U.S.A
| | - C Gaelyn Garrett
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee, U.S.A
| | - Bernard Rousseau
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee, U.S.A
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19
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Tang SS, Mohad V, Gowda M, Thibeault SL. Insights Into the Role of Collagen in Vocal Fold Health and Disease. J Voice 2017; 31:520-527. [PMID: 28359643 PMCID: PMC5583023 DOI: 10.1016/j.jvoice.2017.01.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 01/08/2017] [Accepted: 01/11/2017] [Indexed: 10/19/2022]
Abstract
As one of the key fibrous proteins in the extracellular matrix, collagen plays a significant role in the structural and biomechanical characteristics of the vocal fold. Anchored fibrils of collagen create secure structural regions within the vocal folds and are strong enough to sustain vibratory impact and stretch during phonation. This contributes tensile strength, density, and organization to the vocal folds and influences health and pathogenesis. This review offers a comprehensive summary for a current understanding of collagen within normal vocal fold tissues throughout the life span as well as vocal pathology and wound repair. Further, collagen's molecular structure and biosynthesis are discussed. Finally, collagen alterations in tissue injury and repair and the incorporation of collagen-based biomaterials as a method of treating voice disorders are reviewed.
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Affiliation(s)
- Sharon S Tang
- Department of Communication Sciences and Disorders, Department of Surgery, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin-Madison, Madison, Wisconsin
| | - Vidisha Mohad
- Department of Communication Sciences and Disorders, Department of Surgery, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin-Madison, Madison, Wisconsin
| | - Madhu Gowda
- Department of Surgery, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin-Madison, Madison, Wisconsin
| | - Susan L Thibeault
- Department of Surgery, Voice and Swallow Clinics, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
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20
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Erndt-Marino JD, Jimenez-Vergara AC, Diaz-Rodriguez P, Kulwatno J, Diaz-Quiroz JF, Thibeault S, Hahn MS. In vitro evaluation of a basic fibroblast growth factor-containing hydrogel toward vocal fold lamina propria scar treatment. J Biomed Mater Res B Appl Biomater 2017; 106:1258-1267. [PMID: 28580765 DOI: 10.1002/jbm.b.33936] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 04/11/2017] [Accepted: 05/16/2017] [Indexed: 12/25/2022]
Abstract
Scarring of the vocal fold lamina propria can lead to debilitating voice disorders that can significantly impair quality of life. The reduced pliability of the scar tissue-which diminishes proper vocal fold vibratory efficiency-results in part from abnormal extracellular matrix (ECM) deposition by vocal fold fibroblasts (VFF) that have taken on a fibrotic phenotype. To address this issue, bioactive materials containing cytokines and/or growth factors may provide a platform to transition fibrotic VFF within the scarred tissue toward an anti-fibrotic phenotype, thereby improving the quality of ECM within the scar tissue. However, for such an approach to be most effective, the acute host response resulting from biomaterial insertion/injection likely also needs to be considered. The goal of the present work was to evaluate the anti-fibrotic and anti-inflammatory capacity of an injectable hydrogel containing tethered basic fibroblast growth factor (bFGF) in the dual context of scar and biomaterial-induced acute inflammation. An in vitro co-culture system was utilized containing both activated, fibrotic VFF and activated, pro-inflammatory macrophages (MΦ) within a 3D poly(ethylene glycol) diacrylate (PEGDA) hydrogel containing tethered bFGF. Following 72 h of culture, alterations in VFF and macrophage phenotype were evaluated relative to mono-culture and co-culture controls. In our co-culture system, bFGF reduced the production of fibrotic markers collagen type I, α smooth muscle actin, and biglycan by activated VFF and promoted wound-healing/anti-inflammatory marker expression in activated MΦ. Cumulatively, these data indicate that bFGF-containing hydrogels warrant further investigation for the treatment of vocal fold lamina propria scar. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1258-1267, 2018.
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Affiliation(s)
- Josh D Erndt-Marino
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | | | | | - Jonathan Kulwatno
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | | | - Susan Thibeault
- Department of Surgery, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Mariah S Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
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21
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Yang L, Tanabe K, Miura T, Yoshinari M, Takemoto S, Shintani S, Kasahara M. Influence of lyophilization factors and gelatin concentration on pore structures of atelocollagen/gelatin sponge biomaterial. Dent Mater J 2017; 36:429-437. [PMID: 28302946 DOI: 10.4012/dmj.2016-242] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to investigate influences of lyophilization factors and gelatin concentration on pore structures of ACG sponge. ACG sponges of different freezing temperatures (-30, -80 and -196oC), freezing times (1, 2 and 24 h), gelatin concentrations (0.6%AC+0.15%G, 0.6%AC+0.6%G and 0.6%AC+2.4%G), and with 500 μM fluvastatin were fabricated. Pore structures including porosity and pore size were analyzed by scanning electron microscopy and ImageJ. The cytotoxic effects of ACG sponges were evaluated in vitro. Freezing temperature did not affect porosity while high freezing temperature (-30oC) increased pore size. The high gelatin concentration group (0.6%AC+2.4%G) had decreased porosity and pore size. Freezing time and 500 μM fluvastatin did not affect pore structures. The cytotoxicity and cell proliferation assays revealed that ACG sponges had no cytotoxic effects on human mesenchymal stromal cell growth and proliferation. These results indicate that ACG sponge may be a good biomaterial scaffold for bone regeneration.
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Affiliation(s)
- Longqiang Yang
- Department of Pediatric Dentistry, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
| | - Koji Tanabe
- Oral Health Science Center, Tokyo Dental College.,Department of Pharmacology, Tokyo Dental College
| | | | | | - Shinji Takemoto
- Oral Health Science Center, Tokyo Dental College.,Department of Dental Materials Science, Tokyo Dental College
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