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Bouhabel S, Park S, Kolosova K, Latifi N, Kost K, Li-Jessen NYK, Mongeau L. Functional Analysis of Injectable Substance Treatment on Surgically Injured Rabbit Vocal Folds. J Voice 2023; 37:829-839. [PMID: 34353684 PMCID: PMC8807745 DOI: 10.1016/j.jvoice.2021.06.001] [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: 09/10/2019] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 02/04/2023]
Abstract
OBJECTIVES The objective of this study was to evaluate the efficacy of immediate injection treatments of dexamethasone, hyaluronic acid (HA)/gelatin (Ge) hydrogel and glycol-chitosan solution on the phonatory function of rabbit larynges at 42 days after surgical injury of the vocal folds, piloting a novel ex vivo phonatory functional analysis protocol. METHODS A modified microflap procedure was performed on the left vocal fold of 12 rabbits to induce an acute injury. Animals were randomized into one of four treatment groups with 0.1 mL injections of dexamethasone, HA/Ge hydrogel, glycol-chitosan or saline as control. The left mid vocal fold lamina propria was injected immediately following injury. The right vocal fold served as an uninjured control. Larynges were harvested at Day 42 after injection, then were subjected to airflow-bench evaluation. Acoustic, aerodynamic and laryngeal high-speed videoendoscopy (HSV) analyses were performed. HSV segments of the vibrating vocal folds were rated by three expert laryngologists. Six parameters related to vocal fold vibratory characteristics were evaluated on a Likert scale. RESULTS The fundamental frequency, one possible surrogate of vocal fold stiffness and scarring, was lower in the dexamethasone and HA/Ge hydrogel treatment groups compared to that of the saline control (411.52±11.63 Hz). The lowest fundamental frequency value was observed in the dexamethasone group (348.79±14.99 Hz). Expert visual ratings of the HSV segments indicated an overall positive outcome in the dexamethasone treatment group, though the impacts were below statistical significance. CONCLUSION Dexamethasone injections might be used as an adjunctive option for iatrogenic vocal fold scarring. An increased sample size, histological correlate, and experimental method improvements will be needed to confirm this finding. Results suggested a promising use of HSV and acoustic analysis techniques to identify and monitor post-surgical vocal fold repair and scarring, providing a useful tool for future studies of vocal fold scar treatments.
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Affiliation(s)
- Sarah Bouhabel
- Department of Otolaryngology - Head and Neck Surgery, McGill University, Montreal, Quebec, Canada.
| | - Scott Park
- Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
| | - Ksenia Kolosova
- Department of Physics, McGill University, Montreal, Quebec, Canada
| | - Neda Latifi
- Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
| | - Karen Kost
- Department of Otolaryngology - Head and Neck Surgery, McGill University, Montreal, Quebec, Canada
| | - Nicole Y K Li-Jessen
- Department of Otolaryngology - Head and Neck Surgery, McGill University, Montreal, Quebec, Canada; School of Communication Sciences and Disorders, McGill University, Montreal, Quebec, Canada
| | - Luc Mongeau
- Department of Otolaryngology - Head and Neck Surgery, McGill University, Montreal, Quebec, Canada; Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
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2
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Zheng A, Waterkotte T, Debele T, Dion G, Park Y. Biodegradable dexamethasone polymer capsule for long-term release. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1358-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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3
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Coburn PT, Li X, Li JY, Kishimoto Y, Li-Jessen NY. Progress in Vocal Fold Regenerative Biomaterials: An Immunological Perspective. ADVANCED NANOBIOMED RESEARCH 2022; 2:2100119. [PMID: 35434718 PMCID: PMC9007544 DOI: 10.1002/anbr.202100119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Vocal folds, housed in the upper respiratory tract, are important to daily breathing, speech and swallowing functions. Irreversible changes to the vocal fold mucosae, such as scarring and atrophy, require a regenerative medicine approach to promote a controlled regrowth of the extracellular matrix (ECM)-rich mucosa. Various biomaterial systems have been engineered with an emphasis on stimulating local vocal fold fibroblasts to produce new ECM. At the same time, it is imperative to limit the foreign body reaction and associated immune components that can hinder the integration of the biomaterial into the host tissue. Modern biomaterial designs have become increasingly focused on actively harnessing the immune system to accelerate and optimize the process of tissue regeneration. An array of physical and chemical biomaterial parameters have been reported to effectively modulate local immune cells, such as macrophages, to initiate tissue repair, stimulate ECM production, promote biomaterial-tissue integration, and restore the function of the vocal folds. In this perspective paper, the unique immunological profile of the vocal folds will first be reviewed. Key physical and chemical biomaterial properties relevant to immunomodulation will then be highlighted and discussed. A further examination of the physicochemical properties of recent vocal fold biomaterials will follow to generate deeper insights into corresponding immune-related outcomes. Lastly, a perspective will be offered on the opportunity of integrating material-led immunomodulatory strategies into future vocal fold tissue engineering therapies.
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Affiliation(s)
- Patrick T. Coburn
- School of Communication Sciences and Disorders, McGill University, Canada
| | - Xuan Li
- Department of Mechanical Engineering, McGill University, Canada
| | - Jianyu. Y. Li
- Department of Mechanical Engineering, McGill University, Canada
- Department of Biomedical Engineering, McGill University, Canada
| | - Yo Kishimoto
- Department of Otolaryngology – Head & Neck Surgery, Kyoto University, Kyoto, Japan
| | - Nicole Y.K. Li-Jessen
- School of Communication Sciences and Disorders, McGill University, Canada
- Department of Biomedical Engineering, McGill University, Canada
- Department of Otolaryngology – Head & Neck Surgery, McGill University, Canada
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Sahiner N, Suner SS, Ayyala RS. Preparation of hyaluronic acid and copolymeric hyaluronic acid: sucrose particles as tunable antibiotic carriers. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02168-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Seekhao N, Yu G, Yuen S, JaJa J, Mongeau L, Li-Jessen NYK. High-Performance Host-Device Scheduling and Data-Transfer Minimization Techniques for Visualization of 3D Agent-Based Wound Healing Applications. PDPTA '19 : PROCEEDINGS OF THE 2019 INTERNATIONAL CONFERENCE ON PARALLEL & DISTRIBUTED PROCESSING TECHNIQUESS & APPLICATIONS. INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED PROCESSING TECHNIQUES AND APPLICATIONS (2019 : LAS VEGAS,... 2019; 2019:69-76. [PMID: 33123701 PMCID: PMC7592707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
High-fidelity numerical simulations produce massive amounts of data. Analyzing these numerical data sets as they are being generated provides useful insights into the processes underlying the modeled phenomenon. However, developing real-time in-situ visualization techniques to process large amounts of data can be challenging since the data does not fit on the GPU, thus requiring expensive CPU-GPU data copies. In this work, we present a scheduling scheme that achieve real-time simulation and interactivity through GPU hyper-tasking. Furthermore, the CPU-GPU communications were minimized using an activity-aware technique to reduce redundant copies. Our simulation platform is capable of visualizing 1.7 billion protein data points in situ, with an average frame rate of 42.8 fps. This performance allows users to explore large data sets on remote server with real-time interactivity as they are performing their simulations.
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Affiliation(s)
- N Seekhao
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, USA
| | - G Yu
- School of Communication Sciences and Disorders, McGill University, Montreal, Québec, Canada
| | - S Yuen
- School of Communication Sciences and Disorders, McGill University, Montreal, Québec, Canada
| | - J JaJa
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, USA
| | - L Mongeau
- Department of Mechanical Engineering, McGill University, Montreal, Québec, Canada
| | - N Y K Li-Jessen
- School of Communication Sciences and Disorders, McGill University, Montreal, Québec, Canada
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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: 34] [Impact Index Per Article: 6.8] [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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Kaba S, Nakamura R, Yamashita M, Katsuno T, Suzuki R, Tateya I, Kishimoto Y, Omori K. Alterations in macrophage polarization in injured murine vocal folds. Laryngoscope 2019; 129:E135-E142. [PMID: 30597576 DOI: 10.1002/lary.27523] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVES Macrophages are prominent inflammatory cells in wounds, and their phenotypes are altered during wound healing. They are reported to contribute to not only inflammatory responses but also tissue remodeling. However, few studies in vocal fold biology have focused on the function of macrophages. The purpose of this study was to investigate macrophage polarization and distribution in injured murine vocal folds. STUDY DESIGN Animal experiments with controls. METHOD Unilateral vocal fold stripping was performed on C57BL/6 mice, and larynges were harvested 1, 3, 5, 7, and 14 days postinjury. Immunohistochemical analysis of the vocal fold lamina propria was performed to detect the expression of classically activated (M1) and alternatively activated (M2) macrophage markers (inducible nitric oxide synthase [iNOS] and CD206, respectively) in F4/80+ macrophages. RESULTS The proportion of F4/80+ iNOS+ cells out of all F4/80+ cells tended to increase from day 1. F4/80+ iNOS+ cell percentage tended to be high at days 1 through 7 and declined to close to a normal level by day 14. F4/80+ CD206+ cell percentage tended to decrease at day 1 and then to increase the rest of the time. In the normal vocal fold, the majority of F4/80+ macrophages were only positive for CD206. F4/80+ iNOS+ CD206+ cells were observed at days 1 through 7. CONCLUSION The main population of injured sites gradually shifted from M1 to M2 marker-positive macrophages in murine vocal folds. However, coexistence of M1 and M2 markers in the same macrophages was observed. Our results suggest that macrophage phenotypes are regulated by complex tissue-derived signals and exhibit dynamic changes during wound healing. LEVEL OF EVIDENCE NA Laryngoscope, 129:E135-E142, 2019.
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Affiliation(s)
- Shinji Kaba
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryosuke Nakamura
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masaru Yamashita
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tatsuya Katsuno
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryo Suzuki
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ichiro Tateya
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yo Kishimoto
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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8
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Kazarine A, Kolosova K, Gopal AA, Wang H, Tahara R, Rammal A, Kost K, Mongeau L, Li-Jessen NYK, Wiseman PW. Multimodal virtual histology of rabbit vocal folds by nonlinear microscopy and nano computed tomography. BIOMEDICAL OPTICS EXPRESS 2019; 10:1151-1164. [PMID: 30891336 PMCID: PMC6420294 DOI: 10.1364/boe.10.001151] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/29/2019] [Accepted: 01/31/2019] [Indexed: 05/31/2023]
Abstract
Human vocal folds (VFs) possess a unique anatomical structure and mechanical properties for human communication. However, VFs are prone to scarring as a consequence of overuse, injury, disease or surgery. Accumulation of scar tissue on VFs inhibits proper phonation and leads to partial or complete loss of voice, with significant consequences for the patient's quality of life. VF regeneration after scarring provides a significant challenge for tissue engineering therapies given the complexity of tissue microarchitecture. To establish an effective animal model for VF injury and scarring, new histological methods are required to visualize the wound repair process of the tissue in its three-dimensional native environment. In this work, we propose the use of a combination of nonlinear microscopy and nanotomography as contrast methods for virtual histology of rabbit VFs. We apply these methods to rabbit VF tissue to demonstrate their use as alternatives to conventional VF histology that may enable future clinical studies of this injury model.
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Affiliation(s)
- Alexei Kazarine
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada
| | - Ksenia Kolosova
- Department of Physics, McGill University, 3600 University St., Montreal, QC, H3A 2T8, Canada
| | - Angelica A. Gopal
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada
- Department of Physiology, McGill University, 3655 Promenade Sir William Osler, Montreal, H3G 1Y6, Canada
| | - Huijie Wang
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St. West, Montreal, QC H3A 0C3, Canada
- School of Communication Sciences and Disorders, McGill University, 2001 McGill College Ave., Montreal, QC H3A 1G1, Canada
| | - Rui Tahara
- Redpath Museum, McGill University, 859 Sherbrooke St. West, Montreal, QC H3A 0C4, Canada
| | - Almoaidbellah Rammal
- Department of Otolaryngology – Head and Neck Surgery, McGill University, 1001 Decarie Blvd., Montreal, QC, H4A 3J1, Canada
- Department of Otolaryngology – Head and Neck Surgery, King Abdul-Aziz University, Jeddah, Saudi Arabia
| | - Karen Kost
- Department of Otolaryngology – Head and Neck Surgery, McGill University, 1001 Decarie Blvd., Montreal, QC, H4A 3J1, Canada
| | - Luc Mongeau
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St. West, Montreal, QC H3A 0C3, Canada
| | - Nicole Y. K. Li-Jessen
- School of Communication Sciences and Disorders, McGill University, 2001 McGill College Ave., Montreal, QC H3A 1G1, Canada
- Department of Otolaryngology – Head and Neck Surgery, McGill University, 1001 Decarie Blvd., Montreal, QC, H4A 3J1, Canada
- Department of Biomedical Engineering, McGill University, 3775 University St., Montreal H3A 2B4, Canada
| | - Paul W. Wiseman
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada
- Department of Physics, McGill University, 3600 University St., Montreal, QC, H3A 2T8, Canada
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Mora-Boza A, Puertas-Bartolomé M, Vázquez-Lasa B, San Román J, Pérez-Caballer A, Olmeda-Lozano M. Contribution of bioactive hyaluronic acid and gelatin to regenerative medicine. Methodologies of gels preparation and advanced applications. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.07.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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Andreatta RD, Stemple JC, Seward TS, McMullen CA. Subcutaneous Neurotrophin 4 Infusion Using Osmotic Pumps or Direct Muscular Injection Enhances Aging Rat Laryngeal Muscles. J Vis Exp 2017. [PMID: 28654072 DOI: 10.3791/55837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Laryngeal dysfunction in the elderly is a major cause of disability, from voice disorders to dysphagia and loss of airway protective reflexes. Few, if any, therapies exist that target age-related laryngeal muscle dysfunction. Neurotrophins are involved in muscle innervation and differentiation of neuromuscular junctions (NMJs). It is thought that neurotrophins enhance neuromuscular transmission by increasing neurotransmitter release. The neuromuscular junctions (NMJs) become smaller and less abundant in aging rat laryngeal muscles, with evidence of functional denervation. We explored the effects of NTF4 for future clinical use as a therapeutic to improve function in aging human laryngeal muscles. Here, we provide the detailed protocol for systemic application and direct injection of NTF4 to investigate the ability of aging rat laryngeal muscle to remodel in response to NTF4 application. In this method, rats either received NTF4 either systemically via osmotic pump or by direct injection through the vocal folds. Laryngeal muscles were then dissected and used for histological examination of morphology and age-related denervation.
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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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Walimbe T, Panitch A, Sivasankar PM. A Review of Hyaluronic Acid and Hyaluronic Acid-based Hydrogels for Vocal Fold Tissue Engineering. J Voice 2017; 31:416-423. [PMID: 28262503 DOI: 10.1016/j.jvoice.2016.11.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/11/2016] [Accepted: 11/15/2016] [Indexed: 11/30/2022]
Abstract
Vocal fold scarring is a common cause of dysphonia. Current treatments involving vocal fold augmentation do not yield satisfactory outcomes in the long term. Tissue engineering and regenerative medicine offer an attractive treatment option for vocal fold scarring, with the aim to restore the native extracellular matrix microenvironment and biomechanical properties of the vocal folds by inhibiting progression of scarring and thus leading to restoration of normal vocal function. Hyaluronic acid is a bioactive glycosaminoglycan responsible for maintaining optimum viscoelastic properties of the vocal folds and hence is widely targeted in tissue engineering applications. This review covers advances in hyaluronic acid-based vocal fold tissue engineering and regeneration strategies.
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Affiliation(s)
- Tanaya Walimbe
- Weldon School of Biomedical Engineering, West Lafayette, Indiana
| | - Alyssa Panitch
- Weldon School of Biomedical Engineering, West Lafayette, Indiana; Department of Biomedical Engineering, University of California, Davis, California
| | - Preeti M Sivasankar
- Weldon School of Biomedical Engineering, West Lafayette, Indiana; Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, Indiana.
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13
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Imaizumi M, Li-Jessen NY, Sato Y, Yang DT, Thibeault SL. Retention of Human-Induced Pluripotent Stem Cells (hiPS) With Injectable HA Hydrogels for Vocal Fold Engineering. Ann Otol Rhinol Laryngol 2017; 126:304-314. [DOI: 10.1177/0003489417691296] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Objective: One prospective treatment option for vocal fold scarring is regeneration with an engineered scaffold containing induced pluripotent stem cells (iPS). In the present study, we investigated the feasibility of utilizing an injectable hyaluronic acid (HA) scaffold encapsulated with human-iPS cell (hiPS) for regeneration of vocal folds. Methods: Thirty athymic nude rats underwent unilateral vocal fold injury. Contralateral vocal folds served as uninjured controls. Hyaluronic acid hydrogel scaffold, HA hydrogel scaffold containing hiPS, and HA hydrogel scaffold containing hiPS with epidermal growth factor (EGF) were injected in both vocal folds immediately after surgery. One and 2 weeks after injection, larynges were excised for histology, immunohistochemistry, and fluorescence in situ hybridization (FISH). Results: Presence of HA hydrogel was confirmed in vocal folds 1 and 2 weeks post injection. The FISH analysis confirmed the presence and viability of hiPS in the injected vocal folds. Histological results demonstrated that vocal folds injected with HA hydrogel scaffold containing EGF demonstrated less fibrosis than those with HA hydrogel only. Conclusions: Human-iPS survived in injured rat vocal folds. The HA hydrogel with hiPS and EGF ameliorated the fibrotic response. Additional work is necessary to optimize hiPS differentiation and further confirm the safety of hiPS for clinical applications.
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Affiliation(s)
- Mitsuyoshi Imaizumi
- Department of Otolaryngology, School of Medicine, Fukushima Medical University, Fukushima City, Japan
| | - Nicole Y.K. Li-Jessen
- School of Communication Sciences and Disorders, McGill University, Montreal, QC, Canada
| | - Yuka Sato
- Department of Otolaryngology, School of Medicine, Fukushima Medical University, Fukushima City, Japan
| | - David T. Yang
- Department of Pathology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Susan L. Thibeault
- Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison, Madison, Wisconsin, USA
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14
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Li L, Stiadle JM, Lau HK, Zerdoum AB, Jia X, Thibeault SL, Kiick KL. Tissue engineering-based therapeutic strategies for vocal fold repair and regeneration. Biomaterials 2016; 108:91-110. [PMID: 27619243 PMCID: PMC5035639 DOI: 10.1016/j.biomaterials.2016.08.054] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/29/2016] [Accepted: 08/31/2016] [Indexed: 01/01/2023]
Abstract
Vocal folds are soft laryngeal connective tissues with distinct layered structures and complex multicomponent matrix compositions that endow phonatory and respiratory functions. This delicate tissue is easily damaged by various environmental factors and pathological conditions, altering vocal biomechanics and causing debilitating vocal disorders that detrimentally affect the daily lives of suffering individuals. Modern techniques and advanced knowledge of regenerative medicine have led to a deeper understanding of the microstructure, microphysiology, and micropathophysiology of vocal fold tissues. State-of-the-art materials ranging from extracecullar-matrix (ECM)-derived biomaterials to synthetic polymer scaffolds have been proposed for the prevention and treatment of voice disorders including vocal fold scarring and fibrosis. This review intends to provide a thorough overview of current achievements in the field of vocal fold tissue engineering, including the fabrication of injectable biomaterials to mimic in vitro cell microenvironments, novel designs of bioreactors that capture in vivo tissue biomechanics, and establishment of various animal models to characterize the in vivo biocompatibility of these materials. The combination of polymeric scaffolds, cell transplantation, biomechanical stimulation, and delivery of antifibrotic growth factors will lead to successful restoration of functional vocal folds and improved vocal recovery in animal models, facilitating the application of these materials and related methodologies in clinical practice.
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Affiliation(s)
- Linqing Li
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Jeanna M Stiadle
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Wisconsin-Madison, Madison, WI 53792, USA; Department of Communication Sciences and Disorders, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Hang K Lau
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Aidan B Zerdoum
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA; Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA; Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711, USA
| | - Susan L Thibeault
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Wisconsin-Madison, Madison, WI 53792, USA; Department of Communication Sciences and Disorders, University of Wisconsin-Madison, Madison, WI 53792, USA.
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA; Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA; Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711, USA.
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15
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Shiba TL, Hardy J, Luegmair G, Zhang Z, Long JL. Tissue-Engineered Vocal Fold Mucosa Implantation in Rabbits. Otolaryngol Head Neck Surg 2016; 154:679-88. [PMID: 26956198 DOI: 10.1177/0194599816628501] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 01/04/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To assess phonatory function and wound healing of a tissue-engineered vocal fold mucosa (TE-VFM) in rabbits. An "artificial" vocal fold would be valuable for reconstructing refractory scars and resection defects, particularly one that uses readily available autologous cells and scaffold. This work implants a candidate TE-VFM after resecting native epithelium and lamina propria in rabbits. STUDY DESIGN Prospective animal study. SETTING Research laboratory. SUBJECTS AND METHODS Rabbit adipose-derived stem cells were isolated and cultured in three-dimensional fibrin scaffolds to form TE-VFM. Eight rabbits underwent laryngofissure, unilateral European Laryngologic Society type 2 cordectomy, and immediate reconstruction with TE-VFM. After 4 weeks, larynges were excised, phonated, and examined by histology. RESULTS Uniform TE-VFM implants were created, with rabbit mesenchymal cells populated throughout fibrin hydrogels. Rabbits recovered uneventfully after implantation. Phonation was achieved in all, with mucosal waves evident at the implant site. Histology after 4 weeks showed resorbed fibrin matrix, continuous epithelium, and mildly increased collagen relative to contralateral unoperated vocal folds. Elastic fiber appearance was highly variable. Inflammatory cell infiltrate was limited to animals receiving sex-mismatched implants. CONCLUSION TE-VFMs were successfully implanted into 8 rabbits, with minor evidence of scar formation and immune reaction. Vibration was preserved 4 weeks after resecting and reconstructing the complete vocal fold cover layer. Further studies will investigate the mechanism and durability of improvement. TE-VFM with autologous cells is a promising new approach for vocal fold reconstruction.
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Affiliation(s)
- Travis L Shiba
- Department of Head and Neck Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Jordan Hardy
- Research Service, Department of Veterans Affairs, Los Angeles, California, USA
| | - Georg Luegmair
- Department of Head and Neck Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Zhaoyan Zhang
- Department of Head and Neck Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Jennifer L Long
- Research Service, Department of Veterans Affairs, Los Angeles, California, USA Department of Head and Neck Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
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Heris HK, Latifi N, Vali H, Li N, Mongeau L. Investigation of Chitosan-glycol/glyoxal as an Injectable Biomaterial for Vocal Fold Tissue Engineering. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.proeng.2015.07.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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