1
|
Pöttler M, Fliedner A, Bergmann J, Bui LK, Mühlberger M, Braun C, Graw M, Janko C, Friedrich O, Alexiou C, Lyer S. Magnetic Tissue Engineering of the Vocal Fold Using Superparamagnetic Iron Oxide Nanoparticles. Tissue Eng Part A 2019; 25:1470-1477. [DOI: 10.1089/ten.tea.2019.0009] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Marina Pöttler
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Anna Fliedner
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Julia Bergmann
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Linh Katrin Bui
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Marina Mühlberger
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Christian Braun
- Institute of Legal Medicine, Ludwig-Maximilians-Universität München, Munchen, Germany
| | - Matthias Graw
- Institute of Legal Medicine, Ludwig-Maximilians-Universität München, Munchen, Germany
| | - Christina Janko
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Friedrich-Alexander Universität Erlangen–Nürnberg, Erlangen, Germany
| | - Christoph Alexiou
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Stefan Lyer
- Section of Experimental Oncology and Nanomedicine, Head and Neck Surgery, Department of Otorhinolaryngology, Else Kröner-Fresenius-Foundation-Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| |
Collapse
|
2
|
Bruzzi C, Salsi D, Minghetti D, Negri M, Casolino D, Sessa M. Presbiphonya. ACTA BIO-MEDICA : ATENEI PARMENSIS 2017; 88:6-10. [PMID: 28467327 PMCID: PMC6166195 DOI: 10.23750/abm.v88i1.5266] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 05/25/2016] [Indexed: 11/29/2022]
Abstract
Aim: This article attempts to describe the aging process of the vocal folds and the main features of the aged voice. Background: In the world ageing population era, aging diseases and aging disorders are crucial. Voice disorders (presbyphonia) are common in the elderly and have a significant impact on communication and quality of life. Some of these disorders depend on the vocal folds, which consist of an extracellular matrix (ECM), fibrous proteins, interstitial proteins, and glycosaminoglycans. The density and spatial arrangement of these elements are important, as changes in their deposition can alter the biomechanical properties and vibratory function of the vocal folds. Discussion: The aging voice process is analyzed in detail from mechanical factors like pulmonary bellows alteration, to hormonal factors and life style. Conclusions: The elderly people undergoe mechanical, anatomical and functional changes: alterations of the pulmonary bellows, systemic changes like hormonal disregulation, and laryngeal changes, that resulting in hoarseness, which is difficult to treat. (www.actabiomedica.it)
Collapse
|
3
|
Characterization of silk fibroin modified surface: a proteomic view of cellular response proteins induced by biomaterials. BIOMED RESEARCH INTERNATIONAL 2014; 2014:209469. [PMID: 24818131 PMCID: PMC3982454 DOI: 10.1155/2014/209469] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/18/2014] [Accepted: 01/20/2014] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to develop the pathway of silk fibroin (SF) biopolymer surface induced cell membrane protein activation. Fibroblasts were used as an experimental model to evaluate the responses of cellular proteins induced by biopolymer material using a mass spectrometry-based profiling system. The surface was covered by multiwalled carbon nanotubes (CNTs) and SF to increase the surface area, enhance the adhesion of biopolymer, and promote the rate of cell proliferation. The amount of adhered fibroblasts on CNTs/SF electrodes of quartz crystal microbalance (QCM) greatly exceeded those on other surfaces. Moreover, analyzing differential protein expressions of adhered fibroblasts on the biopolymer surface by proteomic approaches indicated that CD44 may be a key protein. Through this study, utilization of mass spectrometry-based proteomics in evaluation of cell adhesion on biopolymer was proposed.
Collapse
|
4
|
Yang MH, Jong SB, Lu CY, Lin YF, Chiang PW, Tyan YC, Chung TW. Assessing the responses of cellular proteins induced by hyaluronic acid-modified surfaces utilizing a mass spectrometry-based profiling system: over-expression of CD36, CD44, CDK9, and PP2A. Analyst 2012; 137:4921-33. [PMID: 22910856 DOI: 10.1039/c2an35368g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The cell responses to biopolymer surface at the early adhesion stages can be critical for cell survival. The purpose of this research was to assess formation of hyaluronic acid (HA) biopolymer surface, the fibroblasts were used as an experimental model to evaluate the responses of cellular proteins induced by biopolymer materials using a mass spectrometry-based profiling system. Surfaces were covered by multi-walled carbon nanotubes (CNT), chitosan (CS), and HA to increase the surface area, enhance the adhesion of biopolymer and promote the rate of cell proliferation. The amount of adhered fibroblasts on CNT/CS/HA electrodes of quartz crystal microbalance (QCM) were greatly exceeded those on other surfaces that were consistent with cell-count technique. Moreover, analyzing differential protein expressions of adhered fibroblasts on those biopolymer surfaces by proteomic approaches identified CD36, CD44, PP2A, and CDK9 as key proteins. To validate the influences of those four proteins on adhesions of fibroblasts on biopolymers, the cells were blocked by antibodies of the proteins and the adhesions of cells on the tested biopolymer surfaces were examined using a QCM technique, flow cytometric analysis and morphological observations. The results of significantly decreasing the weights and densities of the blocked fibroblasts adhering to CNT/CS/HA surfaces were obtained, and validate those proteins found by proteomic approaches. Utilizing mass spectrometry-based proteomics to evaluate cell adhesions on biopolymers is proposed.
Collapse
Affiliation(s)
- Ming-Hui Yang
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin, 64002 Taiwan, ROC
| | | | | | | | | | | | | |
Collapse
|
5
|
Titze IR, Klemuk SA, Lu X. Adhesion of a Monolayer of Fibroblast Cells to Fibronectin under Sonic Vibrations in a Bioreactor. Ann Otol Rhinol Laryngol 2012; 121:364-74. [DOI: 10.1177/000348941212100602] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objectives: We examined cell adhesion to a surface under vibrational forces approximating those of phonation. Methods: A monolayer of human fibroblast cells was seeded on a fibronectin-coated glass coverslip, which was attached to either the rotating part or the stationary part of a rheometer-bioreactor. The temperature, humidity, carbon dioxide level, nutrients, and cell seeding density were controlled. The cell density was on the order of 1,000 to 5,000 cells per square millimeter. Target stresses above 1 kPa at an oscillatory frequency of 100 Hz were chosen to reflect conditions of vocal fold tissue vibration. Results: Fibronectin coating provided enough adhesion to support at least 2 kPa of oscillating stress, but only about 0.1 kPa of steady rotational shear. For stresses exceeding those limits, the cells were not able to adhere to the thin film of fibronectin. Conclusions: Cells will adhere to a planar surface under stresses typical of phonation, which provide a more stringent test than adherence in a 3-dimensional matrix. The density of cell seeding on the coverslip played a role in cell–extracellular matrix adhesion, in that the cells adhered to each other more than to the fibronectin coating when the cells were nearly confluent.
Collapse
|
6
|
Abstract
PURPOSE OF REVIEW In vocal fold scars the lamina propria layer is lost or deficient. Lamina propria replacement therapy remains a clinical challenge because this layer has a highly specialized three-dimensional organization of extracellular matrix molecules and unique viscoelastic properties. Use of a polymer such as hyaluronic acid appears most promising for replacement therapy because it has the optimal viscoelasticity and also plays a role in the maturation and maintenance of vocal fold lamina propria. RECENT FINDINGS A variety of cross-linked hyaluronic acid formulations and growth factor therapies targeted to increase hyaluronic acid production have been used in the treatment of both acute and established vocal fold scars. Therapeutic strategies have focused on prevention of scar at the time of initial injury, and rejuvenation of lamina propria layer in established scars. Both strategies show improved histologic, viscoelastic, acoustic, and aerodynamic measures. SUMMARY Cross-linked hyaluronic acid formulations appear useful in the treatment of vocal fold scarring. Their use at the time of acute injury especially appears to lessen the degree of long-term scar formation and appears promising. While animal studies have demonstrated the safety profile of many hyaluronic acid formulations, further improvement in these materials and well designed and controlled human trials are needed to further establish the safety and efficacy of these materials and therapeutic approaches.
Collapse
|
7
|
Farran AJE, Teller SS, Jha AK, Jiao T, Hule RA, Clifton RJ, Pochan DP, Duncan RL, Jia X. Effects of matrix composition, microstructure, and viscoelasticity on the behaviors of vocal fold fibroblasts cultured in three-dimensional hydrogel networks. Tissue Eng Part A 2010; 16:1247-61. [PMID: 20064012 DOI: 10.1089/ten.tea.2009.0344] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Vocal fold diseases and disorders are difficult to treat surgically or therapeutically. Tissue engineering offers an alternative strategy for the restoration of functional vocal folds. As a first step toward vocal fold tissue engineering, we investigated the responses of primary vocal fold fibroblasts (PVFFs) to two types of collagen and hyaluronic acid (HA)-based hydrogels that are compositionally similar, but structurally variable and mechanically different. Type A hydrogels were composed of mature collagen fibers reinforced by oxidized HA, whereas type B hydrogels contained immature collagen fibrils interpenetrated in an amorphous, covalently cross-linked HA matrix. PVFFs encapsulated in either matrix adopted a fibroblastic morphology and expressed genes related to important extracellular matrix proteins. DNA analysis indicated a linear growth profile for cells encapsulated in type B gels from day 0 to 21, in contrast to an initial dormant, nonproliferative period from day 0 to 3 experienced by cells in type A gels. At the end of the culture, similar DNA content was detected in both types of constructs. A reduction in collagen content was observed for both types of constructs after 28 days of culture, with type A constructs generally retaining higher amounts of collagen than type B constructs. The HA content in the constructs decreased steadily throughout the culture, with type A constructs consistently exhibiting less HA than type B constructs. Using the torsional wave analysis, we found that the elastic moduli for type A constructs decreased sharply during the first week of culture, followed by 2 weeks of matrix stabilization without significant changes in matrix stiffness. Conversely, the elastic modulus for type B constructs increased moderately over time. It is postulated that PVFFs residing in gels alter the matrix organization, chemical compositions, and viscoelasticity through cell-mediated remodeling processes.
Collapse
Affiliation(s)
- Alexandra J E Farran
- Department of Materials Science and Engineering, University of Delaware , Newark, Delaware, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Ferdous Z, Peterson SB, Tseng H, Anderson DK, Iozzo RV, Grande-Allen KJ. A role for decorin in controlling proliferation, adhesion, and migration of murine embryonic fibroblasts. J Biomed Mater Res A 2010; 93:419-28. [PMID: 19569212 DOI: 10.1002/jbm.a.32545] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The proteoglycan decorin putatively inhibits cell adhesion and cell migration on various extracellular matrix substrates through interactions with beta(1) integrins. This study, therefore, examined the adhesive, migration, and proliferative characteristics of decorin knockout (Dcn(-/-)) murine embryonic fibroblasts compared to wild-type controls on collagen-coated, fibronectin-coated, and uncoated tissue culture plates. The Dcn(-/-) cells showed significantly greater proliferation than wild-type controls on all substrates. The Dcn(-/-) cells also showed significantly greater adhesion to both collagen and fibronectin; both cell types showed greater adhesion to collagen. The addition of exogenous decorin had a differential effect on adhesion to collagen between cell types, but not on fibronectin. For collagen, blocking either alpha(2) or beta(1) integrin subunits significantly reduced adhesion for Dcn(-/-) cells; whereas for fibronectin, blocking either the alpha(5) or beta(1) integrin subunits reduced adhesion for both cell types. Decorin and the alpha(5)beta(1) integrin may have lesser roles in adhesion to fibronectin than previously presumed. Finally, compared to wild-type cells, Dcn(-/-) cells showed greater migration on both uncoated and collagen substrates. This study demonstrates that decorin affects the biology of various integrins that participate in cell proliferation, adhesion, and migration on various substrates.
Collapse
Affiliation(s)
- Z Ferdous
- Department of Bioengineering, Rice University, Houston, Texas 77005, USA
| | | | | | | | | | | |
Collapse
|
9
|
Ishikawa K, Thibeault S. Voice rest versus exercise: a review of the literature. J Voice 2009; 24:379-87. [PMID: 19660903 DOI: 10.1016/j.jvoice.2008.10.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Accepted: 10/22/2008] [Indexed: 12/12/2022]
Abstract
Voice rest is commonly prescribed after vocal fold surgery to promote wound healing of the vocal fold. Currently, there is no standard protocol that is established based on biological evidence. In orthopedic rehabilitation, long-term rest is found to be less effective for connective tissue healing than exercise. Connective tissue healing is also an important factor for successful voice rehabilitation; however, whether this concept can be extrapolated to voice rehabilitation is unknown. The purpose of this article is to review current clinical and basic science literature to examine the effect of voice rest in postsurgical rehabilitation. First, we present a summary of clinical literature that pertains to voice rest. Second, we present description of connective tissues that are involved in orthopedic and voice rehabilitation, specifically, ligament and lamina propria, respectively, and their wound healing process. Third, a summary of the literature from orthopedic research on the effect of rest versus exercise is presented. Lastly, it summarizes in vitro and in vivo studies that examined the effect of mechanical stress on vocal fold tissue. Current literature suggests that there is a lack of clinical evidence that supports a specific type and duration of voice rest, and extrapolation of the findings from orthopedic research may be unreasonable due to the morphological and biochemical difference between the tissues. To determine the effect of voice rest, further elucidation of vocal fold wound healing process and the effect of mechanical stress on vocal fold tissue remodeling are needed.
Collapse
Affiliation(s)
- Keiko Ishikawa
- Division of Otolaryngology, Head and Neck Surgery, University of Wisconsin-Madison, Wisconsin Institute of Medical Research, Madison, Wisconsin 53705-2275, USA
| | | |
Collapse
|
10
|
Abstract
OBJECTIVES/HYPOTHESIS Normal human vocal fold fibroblast (hVFF) primary cell lines are unavailable commercially and are very difficult to acquire, subsequently little is known about their characteristics. The purpose of this study was to compare the morphological and proliferation characteristics and gene expression of hVFFs from different aged donors. STUDY DESIGN In vitro. METHODS We developed three normal hVFF primary cell lines from donors aged 21 (21T), 59 (59T) and 79 (79T) years. We characterized their morphological features, proliferative abilities, telomere lengths, and their functional gene expression by quantitative real-time PCR. RESULTS The 21T line maintained a typical spindle shape until passage 14 whereas 59T and 79T changed morphology to wider, shorter cells at passage 7. Proliferation rates were constant for the 21T through passage 14; 59T's proliferative half-life was passage 9, whereas 79T maintained lower proliferation rates from passage 4. Gene expression levels for fibronectin, collagen I, collagen VI, procollagen I and elastin demonstrated similar patterns for all lines, however, relative amounts decreased with the age of donor. Telomere lengths did not show differences related with donor age. CONCLUSIONS hVFF primary cultures have limited proliferative capacity. The morphology, proliferation, differentiation, and gene expression levels of VFF can be affected by age, but senescence patterns were similar across the ages.
Collapse
|
11
|
Revell CM, Dietrich JA, Scott CC, Luttge A, Baggett LS, Athanasiou KA. Characterization of fibroblast morphology on bioactive surfaces using vertical scanning interferometry. Matrix Biol 2006; 25:523-33. [PMID: 16962756 DOI: 10.1016/j.matbio.2006.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2005] [Revised: 07/19/2006] [Accepted: 07/20/2006] [Indexed: 11/18/2022]
Abstract
Tissue donor scarcity is a major hindrance to articular cartilage tissue engineering. Previous research shows that dermal fibroblasts express chondrocytic markers after seeding on aggrecan-coated surfaces. Since cell roundness appears to correlate with chondrocytic behavior of dermal fibroblasts, this study quantified roundness by measuring cell height and surface area-volume ratio. In addition to aggrecan as a surface coating, collagen type II and decorin, two other major extracellular matrix components of articular cartilage, were examined. Aggrecan, collagen type II, and decorin were coated onto a glass substrate using three application techniques: static drying, airbrush, and painting. Vertical scanning interferometry (VSI) is a novel technique that allows for the expedient morphological determination of single cells. Interferometry was used for the characterization of protein-coated surfaces in addition to characterizing the morphology of single dermal fibroblasts after 24 h of seeding. Fibroblast height was found to vary from 1.0 to 4.0 microm and protein coating, application technique, and seeding position were significant factors (p < 0.002). The largest cell heights were observed on aggrecan and collagen type II coated surfaces using the air brush and static applications. Additionally, variations were observed for surface area-volume ratio, ranging from 1.75 to 11.94 microm(-1) with decorin resulting in the lowest ratio, followed by collagen type II and aggrecan. This study identifies optimal coating conditions for stimulating morphology in dermal fibroblasts that is characteristic of the chondrocytic phenotype. These conditions can be employed to attempt articular cartilage regeneration and bypass difficulties due to a paucity of donor tissue.
Collapse
Affiliation(s)
- Christopher M Revell
- Department of Bioengineering, Rice University, 6100 Main Street, Keck Hall, Suite 116, Houston, Texas 77005, USA
| | | | | | | | | | | |
Collapse
|