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do Nascimento NC, Dos Santos AP, Mohallem R, Aryal UK, Xie J, Cox A, Sivasankar MP. Furosemide-induced systemic dehydration alters the proteome of rabbit vocal folds. J Proteomics 2022; 252:104431. [PMID: 34823036 DOI: 10.1016/j.jprot.2021.104431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/08/2021] [Accepted: 11/11/2021] [Indexed: 12/15/2022]
Abstract
Whole-body dehydration (i.e., systemic dehydration) leads to vocal fold tissue dehydration. Furosemide, a common diuretic prescribed to treat hypertension and edema-associated conditions, induces systemic dehydration. Furosemide also causes voice changes in human speakers, making this method of systemic dehydration particularly interesting for vocal fold dehydration studies. Our objective was to obtain a comprehensive proteome of vocal folds following furosemide-induced systemic dehydration. New Zealand White rabbits were used as the animal model and randomly assigned to euhydrated (control) or furosemide-dehydrated groups. Systemic dehydration, induced by injectable furosemide, was verified by an average body weight loss of -5.5% and significant percentage changes in blood analytes in the dehydrated rabbits compared to controls. Vocal fold specimens, including mucosa and muscle, were processed for proteomic analysis using label-free quantitation LC-MS/MS. Over 1600 proteins were successfully identified across all vocal fold samples; and associated with a variety of cellular components and ubiquitous cell functions. Protein levels were compared between groups showing 32 proteins differentially regulated (p ≤ 0.05) in the dehydrated vocal folds. These are mainly involved with mitochondrial translation and metabolism. The downregulation of proteins involved in mitochondrial metabolism in the vocal folds suggests a mechanism to prevent oxidative stress associated with systemic dehydration. SIGNIFICANCE: Voice disorders affect different population demographics worldwide with one in 13 adults in the United States reporting voice problems annually. Vocal fold systemic hydration is clinically recognized for preventing and treating voice problems and depends on optimal body hydration primarily achieved by water intake. Herein, we use the rabbit as a translatable animal model, and furosemide as a translatable method of systemic dehydration, to reveal a comprehensive proteomic profile of vocal fold mucosa and muscle in response to systemic dehydration. The significant subset of proteins differentially regulated due to furosemide-induced dehydration offer novel insights into the molecular mechanisms of systemic dehydration in the vocal folds. These findings also deepen our understanding of changes to tissue biology after diuretic administration.
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Affiliation(s)
- Naila Cannes do Nascimento
- Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette 47907, IN, United States.
| | - Andrea Pires Dos Santos
- Department of Comparative Pathobiology, Purdue University, West Lafayette 47907, IN, United States
| | - Rodrigo Mohallem
- Department of Comparative Pathobiology, Purdue University, West Lafayette 47907, IN, United States; Purdue Proteomics Facility, Bindley Bioscience Center, Discovery Park, Purdue University, West Lafayette 47907, IN, United States
| | - Uma K Aryal
- Department of Comparative Pathobiology, Purdue University, West Lafayette 47907, IN, United States; Purdue Proteomics Facility, Bindley Bioscience Center, Discovery Park, Purdue University, West Lafayette 47907, IN, United States
| | - Jun Xie
- Department of Statistics, Purdue University, West Lafayette 47907, IN, United States
| | - Abigail Cox
- Department of Comparative Pathobiology, Purdue University, West Lafayette 47907, IN, United States
| | - M Preeti Sivasankar
- Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette 47907, IN, United States
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Shembel AC, Kanshin E, Ueberheide B, Johnson AM. Proteomic Characterization of Senescent Laryngeal Adductor and Plantaris Hindlimb Muscles. Laryngoscope 2022; 132:148-155. [PMID: 34115877 PMCID: PMC9118136 DOI: 10.1002/lary.29683] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/23/2021] [Accepted: 06/01/2021] [Indexed: 01/03/2023]
Abstract
OBJECTIVES The goals of this study were to 1) compare global protein expression in muscles of the larynx and hindlimb and 2) investigate differences in protein expression between aged and nonaged muscle using label-free global proteomic profiling methods. METHODS Liquid chromatography-mass spectrometry (LC-MS/MS) analysis was performed on thyroarytenoid intrinsic laryngeal muscle and plantaris hindlimb muscle from 10 F344xBN F1 male rats (5 old and 5 young). Protein expression was compared and pathway enrichment analysis performed for each muscle type (larynx and limb) and age group (old and young muscle). RESULTS Over 1,000 proteins were identified in common across both muscle types and age groups using LC-MS/MS analysis. Significant age-related differences were seen across 107 proteins in plantaris hindlimb and in 19 proteins in thyroarytenoid laryngeal muscle. Bioinformatic and enrichment analysis demonstrated protein differences between the hindlimb and larynx may relate to immune and stress redox responses and RNA repair. CONCLUSION There are clear differences in protein expressions between the laryngeal and hindlimb skeletal muscles. Initial analysis suggests differences between the two muscle groups may relate to stress responses and repair mechanisms. Age-related changes in the thyroarytenoid appear to be less obvious than in the plantaris. Further in-depth study is needed to elucidate how aging affects protein expression in the laryngeal muscles. LEVEL OF EVIDENCE NA Laryngoscope, 132:148-155, 2022.
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Affiliation(s)
- Adrianna C. Shembel
- Department of Speech, Language and Hearing, University of Texas at Dallas, Dallas, Texas, U.S.A.,Department of Otolaryngology-Head and Neck Surgery, University of Texas at Southwestern Medical Center, Dallas, Texas, U.S.A
| | - Evgeny Kanshin
- Proteomics Laboratory, Division of Advanced Research Technologies, NYU Grossman School of Medicine, New York, New York, U.S.A
| | - Beatrix Ueberheide
- Proteomics Laboratory, Division of Advanced Research Technologies, NYU Grossman School of Medicine, New York, New York, U.S.A.,Department of Biochemistry and Molecular Pharmacology and Department of Neurology, New York University Grossman School of Medicine, New York, New York, U.S.A
| | - Aaron M. Johnson
- and the Department of Otolaryngology-Head and Neck Surgery, New York University Grossman School of Medicine, New York, New York, U.S.A
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The Effect of Botulinum Toxin A on Ischemia-Reperfusion Injury in a Rat Model. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1074178. [PMID: 28589130 PMCID: PMC5447266 DOI: 10.1155/2017/1074178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 04/09/2017] [Indexed: 02/04/2023]
Abstract
Introduction While studies using various materials to overcome ischemia-reperfusion (IR) injury are becoming increasingly common, studies on the effects of botulinum toxin A (BoTA) on IR injury in musculocutaneous flaps are still limited. The purpose of this study was to examine our hypotheses that BoTA provide protection of musculocutaneous flap from ischemia-reperfusion injury. Method Five days after pretreatment injection (BoTA versus normal saline), a right superior musculocutaneous flap (6 × 1.5 cm in size) was made. Ischemia was created by a tourniquet strictly wrapping the pedicle containing skin and muscle for 8 h. After ischemia, the tourniquet was cut, and the musculocutaneous flap was reperfused. Results The overall survival percentage of flap after 8 h of pedicle clamping followed by reperfusion was 87.32 ± 3.67% in the control group versus 95.64 ± 3.25% in the BoTA group (p < 0.001). The BoTA group had higher expression of CD34, HIF-1α, VEGF, and NF-kB comparing to control group in qRT-PCR analysis. Conclusions In this study, we found that local BoTA preconditioning yielded significant protection against IR injury in a rat musculocutaneous flap model.
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Stemple JC, Andreatta RD, Seward TS, Angadi V, Dietrich M, McMullen CA. Enhancement of aging rat laryngeal muscles with endogenous growth factor treatment. Physiol Rep 2016; 4:e12798. [PMID: 27207784 PMCID: PMC4886166 DOI: 10.14814/phy2.12798] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/18/2016] [Accepted: 04/23/2016] [Indexed: 01/03/2023] Open
Abstract
Clinical evidence suggests that laryngeal muscle dysfunction is associated with human aging. Studies in animal models have reported morphological changes consistent with denervation in laryngeal muscles with age. Life-long laryngeal muscle activity relies on cytoskeletal integrity and nerve-muscle communication at the neuromuscular junction (NMJ). It is thought that neurotrophins enhance neuromuscular transmission by increasing neurotransmitter release. We hypothesized that treatment with neurotrophin 4 (NTF4) would modify the morphology and functional innervation of aging rat laryngeal muscles. Fifty-six Fischer 344xBrown Norway rats (6- and 30-mo age groups) were used to evaluate to determine if NTF4, given systemically (n = 32) or directly (n = 24), would improve the morphology and functional innervation of aging rat thyroarytenoid muscles. Results demonstrate the ability of rat laryngeal muscles to remodel in response to neurotrophin application. Changes were demonstrated in fiber size, glycolytic capacity, mitochondrial, tyrosine kinase receptors (Trk), NMJ content, and denervation in aging rat thyroarytenoid muscles. This study suggests that growth factors may have therapeutic potential to ameliorate aging-related laryngeal muscle dysfunction.
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Affiliation(s)
- Joseph C Stemple
- Department of Rehabilitation Sciences, University of Kentucky, Lexington, Kentucky
| | - Richard D Andreatta
- Department of Rehabilitation Sciences, University of Kentucky, Lexington, Kentucky
| | - Tanya S Seward
- Department of Physiology, University of Kentucky, Lexington, Kentucky
| | - Vrushali Angadi
- Department of Rehabilitation Sciences, University of Kentucky, Lexington, Kentucky
| | - Maria Dietrich
- Department of Communication Science and Disorders, University of Missouri, Columbia, Missouri
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El Deeb AE, El Bakary R, Abd-El-Hafez AA. Histological characteristics of botulinum neurotoxin-A on rat skeletal muscles. THE EGYPTIAN JOURNAL OF HISTOLOGY 2014; 37:393-401. [DOI: 10.1097/01.ehx.0000446576.66077.bb] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Wang JF, Mao XY, Zhao C. The changes of serum proteome and tissular pathology in mouse induced by botulinum toxin E injection. Mol Biol Rep 2014; 41:2509-19. [PMID: 24458824 DOI: 10.1007/s11033-014-3109-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 01/07/2014] [Indexed: 10/25/2022]
Abstract
The experiment were performed to investigate the poisoning-related proteins and main pathological changes after mouse suffered from injection of botulinum toxin serotype E. Dose of 0.75 LD50 botulinum toxin serotype E per mice were administrated by intraperitoneal injection. Survival mouse were picked as experimental group. The blood were collected from orbital blood and serum sample was separated by centrifugation. The heart, liver, spleen, lung, kidney were fixed in 10 % neutral buffered formalin and then developed paraffin sections. Serum protein components were analyzed by SDS-PAGE gel electrophoresis coupled with 2-DE SDS-PAGE gel electrophoresis. Differentially expressed proteins were analyzed by PDQUest8.0 software and subjected to ion trap mass spectrometry equipped with a high performance liquid chromatography system. The observation of pathological section showed that heart, liver, spleen, lung, kidney exhibited pathological changes in different degree, especially in heart, liver and lung tissues. Heart muscle tissue display serious inflammatory response, heart muscle fiber compulsively expanded and filled with erythrocyte and inflammatory exudates, some heart muscle fiber ruptured, even necrosis; hepatic cell in edge of liver occur apoptosis and some hepatic cell have disintegrated, and even died; pulmonary alveoli broken and partial vein filled with blood. Serum proteins component present a significant changes between control serum and botulism in 24 h by SDS-PAGE gel electrophoresis and 2-DE-SDS-PAGE gel electrophoresis. Twenty differentially expressed protein spots were observed in 2-DE profiles, in which 14 protein spots were undetectable in serum proteome under botulism, 3 protein spots exclusively expressed in state of botulism, 3 protein spots were low-expressed in serum proteome under botulism. Fourteen proteins have been identified among 20 spots elected on two-dimensional electrophoresis gels. Crystal proteins family exclusively expressed in control group serum. Haptoglobin were low-expressed under botulism in serum protein components, however, serum amyloid A only expressed in serum sample under botulism in 24 h, which were verified by Western-blot. Identified proteins involved in energy metabolism, cellular stress response, transcription, body defense and cell proliferation. These findings represent the first report of BoNT-induced changes in serum proteome and histopathology, and reinforce the utility of applying proteomic tools to the study of system-wide biological processes in normal and botulism.
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Affiliation(s)
- J F Wang
- The Department of the 5th Research, Lanzhou Institute of Biological Products, Ltd, Co, Lanzhou, 730046, Gansu, China,
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Chang Z, Kishimoto Y, Hasan A, Welham NV. TGF-β3 modulates the inflammatory environment and reduces scar formation following vocal fold mucosal injury in rats. Dis Model Mech 2013; 7:83-91. [PMID: 24092879 PMCID: PMC3882051 DOI: 10.1242/dmm.013326] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Transforming growth factor (TGF)-β1 and TGF-β3 have been reported to exert differential effects on wound healing, and possibly even account for tissue-specific differences in scar formation. Scarring is particularly detrimental in the vocal fold mucosa (VFM), where destruction of the native extracellular matrix causes irreparable biomechanical changes and voice impairment. Here, in a series of in vitro and in vivo experiments, we identified differences in TGF-β1 and TGF-β3 transcription and immunolocalization to various cell subpopulations in naïve and injured rat VFM, compared with oral mucosa (which undergoes rapid healing with minimal scar) and skin (which typically heals with scar). Treatment of cultured human vocal fold fibroblasts with TGF-β3 resulted in less potent induction of profibrotic gene transcription, extracellular matrix synthesis and fibroblast-myofibroblast differentiation, compared with treatment with TGF-β1 and TGF-β2. Finally, delivery of exogenous TGF-β3 to rat VFM during the acute injury phase modulated the early inflammatory environment and reduced eventual scar formation. These experiments show that the TGF-β isoforms have distinct roles in VFM maintenance and repair, and that TGF-β3 redirects wound healing to improve VFM scar outcomes in vivo.
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Affiliation(s)
- Zhen Chang
- Department of Surgery, Division of Otolaryngology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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Han N, Kim HD, Eom MJ, You JM, Han J, Kim HK, Kang MS. Proteomic changes in rat gastrocnemius muscle after botulinum toxin a injection. Ann Rehabil Med 2013; 37:157-66. [PMID: 23705109 PMCID: PMC3660475 DOI: 10.5535/arm.2013.37.2.157] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 09/28/2012] [Indexed: 12/22/2022] Open
Abstract
Objective To observe the changes in protein expression induced by botulinum toxin A (BoNT-A) injection and to characterize the molecular and cellular action of mechanisms of BoNT-A injection on skeletal muscles using proteomic elements as biomarkers. Methods BoNT-A was injected into left gastrocnemius muscles of 12 Sprague-Dawley rats (2 months of age) at a dosage of 5 units/kg body weight. For the controls same volume of normal saline was injected to right gastrocnemius muscle of each rat. Muscle samples were obtained at 4 time points (3 rats per time point): 3, 7, 14, and 56 day post-injection. To reveal the alterations in muscle protein, we performed 2-dimensional electrophoresis (2DE) and compared Botox group and normal saline group at each time point. Altered protein spots in 2DE were identified using matrix-assisted laser desorption/ionization-time-of-flight mass spectrometer (MALDI-TOF MS) proteomics analysis. Results Compared with normal saline group, 46 protein spots showed changed protein expression. Twelve protein spots demonstrated increased volume and 34 protein spots demonstrated decreased volume. Among spots of decreased volume, 17 spots showed statistically significant differences. Thirty-eight identified proteins were associated with alterations in energy metabolism, muscle contractile function, transcription, translation, cell proliferation, and cellular stress response. Conclusion BoNT-A gives influences on muscle contractile function and energy metabolism directly or indirectly besides neurotoxic effects. Proteomic expression provides better understanding about the effect of BoNT-A on skeletal muscle.
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Affiliation(s)
- Nami Han
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
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Welham NV, Chang Z, Smith LM, Frey BL. Proteomic analysis of a decellularized human vocal fold mucosa scaffold using 2D electrophoresis and high-resolution mass spectrometry. Biomaterials 2012; 34:669-76. [PMID: 23102991 DOI: 10.1016/j.biomaterials.2012.09.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 09/21/2012] [Indexed: 12/22/2022]
Abstract
Natural biologic scaffolds for tissue engineering are commonly generated by decellularization of tissues and organs. Despite some preclinical and clinical success, in vivo scaffold remodeling and functional outcomes remain variable, presumably due to the influence of unidentified bioactive molecules on the scaffold-host interaction. Here, we used 2D electrophoresis and high-resolution mass spectrometry-based proteomic analyses to evaluate decellularization effectiveness and identify potentially bioactive protein remnants in a human vocal fold mucosa model. We noted proteome, phosphoproteome and O-glycoproteome depletion post-decellularization, and identified >200 unique protein species within the decellularized scaffold. Gene ontology-based enrichment analysis revealed a dominant set of functionally-related ontology terms associated with extracellular matrix assembly, organization, morphology and patterning, consistent with preservation of a tissue-specific niche for later cell seeding and infiltration. We further identified a subset of ontology terms associated with bioactive (some of which are antigenic) cellular proteins, despite histological and immunohistochemical data indicating complete decellularization. These findings demonstrate the value of mass spectrometry-based proteomics in identifying agents potentially responsible for variation in host response to engineered tissues derived from decellularized scaffolds. This work has implications for the manufacturing of biologic scaffolds from any tissue or organ, as well as for prediction and monitoring of the scaffold-host interaction in vivo.
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Affiliation(s)
- Nathan V Welham
- Division of Otolaryngology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA.
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The effect of surgical and chemical denervation on ischaemia/reperfusion injury of skeletal muscle. J Plast Reconstr Aesthet Surg 2012; 65:240-8. [DOI: 10.1016/j.bjps.2011.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Accepted: 09/01/2011] [Indexed: 11/24/2022]
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Terilli RR, Moura H, Woolfitt AR, Rees J, Schieltz DM, Barr JR. A historical and proteomic analysis of botulinum neurotoxin type/G. BMC Microbiol 2011; 11:232. [PMID: 22008244 PMCID: PMC3215672 DOI: 10.1186/1471-2180-11-232] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Accepted: 10/18/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Clostridium botulinum is the taxonomic designation for at least six diverse species that produce botulinum neurotoxins (BoNTs). There are seven known serotypes of BoNTs (/A through/G), all of which are potent toxins classified as category A bioterrorism agents. BoNT/G is the least studied of the seven serotypes. In an effort to further characterize the holotoxin and neurotoxin-associated proteins (NAPs), we conducted an in silico and proteomic analysis of commercial BoNT/G complex. We describe the relative quantification of the proteins present in the/G complex and confirm our ability to detect the toxin activity in vitro. In addition, we review previous literature to provide a complete description of the BoNT/G complex. RESULTS An in-depth comparison of protein sequences indicated that BoNT/G shares the most sequence similarity with the/B serotype. A temperature-modified Endopep-MS activity assay was successful in the detection of BoNT/G activity. Gel electrophoresis and in gel digestions, followed by MS/MS analysis of/G complex, revealed the presence of four proteins in the complexes: neurotoxin (BoNT) and three NAPs--nontoxic-nonhemagglutinin (NTNH) and two hemagglutinins (HA70 and HA17). Rapid high-temperature in-solution tryptic digestions, coupled with MS/MS analysis, generated higher than previously reported sequence coverages for all proteins associated with the complex: BoNT 66%, NTNH 57%, HA70 91%, and HA17 99%. Label-free relative quantification determined that the complex contains 30% BoNT, 38% NTNH, 28% HA70, and 4% HA17 by weight comparison and 17% BoNT, 23% NTNH, 42% HA70, and 17% HA17 by molecular comparison. CONCLUSIONS The in silico protein sequence comparisons established that the/G complex is phenetically related to the other six serotypes of C. botulinum. Proteomic analyses and Endopep-MS confirmed the presence of BoNT and NAPs, along with the activity of the commercial/G complex. The use of data-independent MS(E) data analysis, coupled to label-free quantification software, suggested that the weight ratio BoNT:NAPs is 1:3, whereas the molar ratio of BoNT:NTNH:HA70:HA17 is 1:1:2:1, within the BoNT/G progenitor toxin.
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Affiliation(s)
- Rebecca R Terilli
- Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, Atlanta, GA 30341, USA
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Welham NV, Yamashita M, Choi SH, Ling C. Cross-sample validation provides enhanced proteome coverage in rat vocal fold mucosa. PLoS One 2011; 6:e17754. [PMID: 21423617 PMCID: PMC3057991 DOI: 10.1371/journal.pone.0017754] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Accepted: 02/09/2011] [Indexed: 01/20/2023] Open
Abstract
The vocal fold mucosa is a biomechanically unique tissue comprised of a densely cellular epithelium, superficial to an extracellular matrix (ECM)-rich lamina propria. Such ECM-rich tissues are challenging to analyze using proteomic assays, primarily due to extensive crosslinking and glycosylation of the majority of high Mr ECM proteins. In this study, we implemented an LC-MS/MS-based strategy to characterize the rat vocal fold mucosa proteome. Our sample preparation protocol successfully solubilized both proteins and certain high Mr glycoconjugates and resulted in the identification of hundreds of mucosal proteins. A straightforward approach to the treatment of protein identifications attributed to single peptide hits allowed the retention of potentially important low abundance identifications (validated by a cross-sample match and de novo interpretation of relevant spectra) while still eliminating potentially spurious identifications (global single peptide hits with no cross-sample match). The resulting vocal fold mucosa proteome was characterized by a wide range of cellular and extracellular proteins spanning 12 functional categories.
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Affiliation(s)
- Nathan V Welham
- Department of Surgery, Division of Otolaryngology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America.
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Ohlendieck K. Proteomics of skeletal muscle differentiation, neuromuscular disorders and fiber aging. Expert Rev Proteomics 2010; 7:283-96. [PMID: 20377394 DOI: 10.1586/epr.10.2] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Skeletal muscle fibers are the most abundant cellular structure in the human body. Altered neuromuscular activity, traumatic injury or genetic abnormalities have profound effects on muscle integrity, tissue mass, fiber type distribution, metabolic integration and contractile function. The recent application of mass spectrometry-based proteomics has decisively advanced our molecular understanding of numerous physiological adaptations in healthy muscle and pathophysiological mechanisms associated with major muscle diseases. Skeletal muscle proteomics promises to play a major role in the establishment of a disease-specific biomarker signature for the major classes of neuromuscular disorders. New muscle markers will be crucial for the development of improved diagnostics, the monitoring of disease progression, evaluation of drug action and the identification of novel therapeutic targets.
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Affiliation(s)
- Kay Ohlendieck
- Department of Biology, National University of Ireland, Maynooth, Co. Kildare, Ireland.
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Li NYK, Abbott KV, Rosen C, An G, Hebda PA, Vodovotz Y. Translational systems biology and voice pathophysiology. Laryngoscope 2010; 120:511-5. [PMID: 20025041 DOI: 10.1002/lary.20755] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVES/HYPOTHESIS Personalized medicine has been called upon to tailor healthcare to an individual's needs. Evidence-based medicine (EBM) has advocated using randomized clinical trials with large populations to evaluate treatment effects. However, due to large variations across patients, the results are likely not to apply to an individual patient. We suggest that a complementary, systems biology approach using computational modeling may help tackle biological complexity in order to improve ultimate patient care. The purpose of the article is: 1) to review the pros and cons of EBM, and 2) to discuss the alternative systems biology method and present its utility in clinical voice research. STUDY DESIGN Tutorial. METHODS Literature review and discussion. RESULTS We propose that translational systems biology can address many of the limitations of EBM pertinent to voice and other health care domains, and thus complement current health research models. In particular, recent work using mathematical modeling suggests that systems biology has the ability to quantify the highly complex biologic processes underlying voice pathophysiology. Recent data support the premise that this approach can be applied specifically in the case of phonotrauma and surgically induced vocal fold trauma, and may have particular power to address personalized medicine. CONCLUSIONS We propose that evidence around vocal health and disease be expanded beyond a population-based method to consider more fully issues of complexity and systems interactions, especially in implementing personalized medicine in voice care and beyond.
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Affiliation(s)
- Nicole Y K Li
- Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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