Adrianna C Shembel1,2, Evgeny Kanshin3, Beatrix Ueberheide3,4, Aaron M Johnson5. 1. Department of Speech, Language and Hearing, University of Texas at Dallas, Dallas, Texas, U.S.A. 2. Department of Otolaryngology-Head and Neck Surgery, University of Texas at Southwestern Medical Center, Dallas, Texas, U.S.A. 3. Proteomics Laboratory, Division of Advanced Research Technologies, NYU Grossman School of Medicine, New York, New York, U.S.A. 4. Department of Biochemistry and Molecular Pharmacology and Department of Neurology, New York University Grossman School of Medicine, New York, New York, U.S.A. 5. Department of Otolaryngology-Head and Neck Surgery, New York University Grossman School of Medicine, New York, New York, U.S.A.
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.
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.
Authors: Lilia Brinca; Patrícia Nogueira; Ana Inês Tavares; Ana Paula Batista; Ilidio C Gonçalves; Maria L Moreno Journal: J Voice Date: 2014-07-05 Impact factor: 2.009
Authors: Andrew J Bowen; Dale C Ekbom; Danielle Hunter; Stephen Voss; Kathleen Bartemes; Andrew Mearns-Spragg; Michael S Oldenburg; Serban San-Marina Journal: Laryngoscope Investig Otolaryngol Date: 2022-09-24