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Sarcomere structure: the importance of desmin protein in muscle atrophy / Estructura de sarcómera: la importancia de proteína desmina en atrofia muscular
Marzuca-Nassr, Gabriel Nasri; Vitzel, Kaio Fernando; Mancilla-Solorza, Eladio; Márquez, José Luis.
Affiliation
  • Marzuca-Nassr, Gabriel Nasri; Universidad de La Frontera. Faculty of Medicine. Department of Internal Medicine. Temuco. CL
  • Vitzel, Kaio Fernando; Massey University. College of Health. School of Health Sciences. Auckland. NZ
  • Mancilla-Solorza, Eladio; Universidad Católica del Maule. Faculty of Health Sciences. Department of Kinesiology. Talca. CL
  • Márquez, José Luis; Universidad de Santiago de Chile. Faculty of Medical Sciences. School of Kinesiology. Santiago. CL
Int. j. morphol ; 36(2): 576-583, jun. 2018. graf
Article in En | LILACS | ID: biblio-954157
Responsible library: CL1.1
ABSTRACT
Knowing the ultrastructure of skeletal muscle is critical to understand how it works under normal situation and the disorders caused by extreme or pathological conditions. Sarcomere is the basic structural unit of striated muscle tissue. An important element of sarcomere architecture are the intermediate filaments, including the desmin protein. Desmin protein contributes to maintenance of cell integrity, efficient transmission of force and mechanochemical signaling within the myocyte. Because of this, desmin protein has constantly been a focus of research that investigates its alterations associated to damage and muscle atrophy under different conditions. The purpose of the following literature review is to describe the basic concepts of muscle ultrastructure, emphasizing the desmin protein role under conditions of muscle disuse atrophy and aging.
RESUMEN
Conocer la ultraestructura del músculo esquelético es crítico para entender cómo trabaja bajo situaciones normales y en desórdenes causados por condiciones extremas o patológicas. La sarcómera es la unidad de estructura básica del tejido muscular estriado. Elementos importantes en la arquitectura de la sarcómera son los filamentos intermedios, incluyendo la proteína desmina. La proteína desmina contribuye en mantener la integridad celular, la transmisión eficiente de fuerza y la señalización mecanoquímica dentro del miocito. Debido a lo anterior, la proteína desmina ha sido constante foco de investigación en trabajos que estudian sus alteraciones asociadas a daño y atrofia muscular bajo diferentes condiciones. El propósito de la siguiente revisión de la literatura es describir los conceptos básicos de la ultraestructura muscular, enfatizando en el rol de la proteína desmina bajo condiciones de atrofia muscular por desuso y envejecimiento.
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Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Sarcomeres / Aging / Muscle, Skeletal / Desmin Limits: Animals / Humans Language: En Journal: Int. j. morphol Journal subject: ANATOMIA Year: 2018 Document type: Article / Project document Affiliation country: Chile / New Zealand Country of publication: Chile

Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Sarcomeres / Aging / Muscle, Skeletal / Desmin Limits: Animals / Humans Language: En Journal: Int. j. morphol Journal subject: ANATOMIA Year: 2018 Document type: Article / Project document Affiliation country: Chile / New Zealand Country of publication: Chile