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      Ecdiesteroides y su actividad farmacológica sobre el músculo esquelético Translated title: Ecdysteroids and their pharmacological activity on skeletal muscle

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          Abstract

          Resumen Introducción: Los ecdiesteroides presentan cualidades únicas dentro del reino vegetal y animal. Su similitud a esteroides endógenos de mamíferos les otorga actividad biológica sobre el tejido muscular esquelético. Sin embargo, su mecanismo de acción está por definirse en su totalidad. Método: Se realizó una revisión narrativa utilizando la evidencia científica más relevante. Se consultaron de las bases de datos Medline, Google Scholar, Scielo y Wiley, incluyéndose y excluyéndose trabajos acordes a los criterios del autor. Resultados: La actividad de los ecdiesteroides, principalmente de la Ecdisterona (Ec), podría deberse a la interacción con Mas, receptor acoplado a proteína-G transmembrana (GPCR), y la posterior activación del receptor de estrógenos β (ER β) no nuclear. Dicho mecanismo de acción induce la activación de la ruta alternativa del Sistema Renina-Angiotensina-Aldosterona (RAA) aboliendo los mecanismos de degradación muscular y, mediante la activación indirecta de Erβ, se suprime la expresión del gen de la miostatina. Esta actividad biológica pudiera conferir a los ecdiesteroides propiedades farmacológicas óptimas para impedir la degradación proteico-muscular, tales como la regeneración y reparación del tejido. Conclusiones: Ec ha demostrado poseer propiedades farmacológicas interesantes para el abordaje alternativo de patologías musculodegenerativas por sus efectos anticatabólicos. Aunque prosigue la investigación para su implementación en la clínica, esta siendo utilizada en la industria deportiva y en ensayos para el tratamiento de diferentes patologías.

          Translated abstract

          Abstract Introduction: Ecdysteroids present unique qualities within the plant and animal kingdoms. Their similarity to endogenous mammalian steroids allows them to present biological activity on skeletal muscle tissue. However, this molecule’s action mechanism remains to be fully understood. Method: A narrative review was carried out using the most relevant scientific evidence. Different databases such as Medline, Google Scholar, Scielo and Wiley were consulted. Works were included or excluded according to the author´s criterium. Results: Ecdysteroids’ activity, mostly that of ecdysterone, might be due to the interaction with Mas receptor, a transmembrane G-Protein Coupled Receptor (GPCR), and the subsequent indirect activation of β-Estrogen Receptor´s (β-ER) non-nuclear form. Said action mechanism induces the alternative pathway activation of the Renin-Angiotensin-Aldosterone System (RAAS), abolishing muscular degradation mechanism. Finally, through β-ER activation, the myostatin gene is supressed. This biological activity could provide ecdysteroids optimal pharmacological properties to prevent muscular protein degradation. These include tissue regeneration and repair. Conclusions: Due to its anticatabolic effects, Ec has shown great pharmacological properties that could make it work as an alternative treatment for degenerative muscle pathologies. Although investigations regarding Ec are still in progress, it has already been used by the sports’ industry and in several clinical trials that focus on the treatment of other diseases.

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          Most cited references41

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          The ACE2/Angiotensin-(1–7)/MAS Axis of the Renin-Angiotensin System: Focus on Angiotensin-(1–7)

          The renin-angiotensin system (RAS) is a key player in the control of the cardiovascular system and hydroelectrolyte balance, with an influence on organs and functions throughout the body. The classical view of this system saw it as a sequence of many enzymatic steps that culminate in the production of a single biologically active metabolite, the octapeptide angiotensin (ANG) II, by the angiotensin converting enzyme (ACE). The past two decades have revealed new functions for some of the intermediate products, beyond their roles as substrates along the classical route. They may be processed in alternative ways by enzymes such as the ACE homolog ACE2. One effect is to establish a second axis through ACE2/ANG-(1–7)/MAS, whose end point is the metabolite ANG-(1–7). ACE2 and other enzymes can form ANG-(1–7) directly or indirectly from either the decapeptide ANG I or from ANG II. In many cases, this second axis appears to counteract or modulate the effects of the classical axis. ANG-(1–7) itself acts on the receptor MAS to influence a range of mechanisms in the heart, kidney, brain, and other tissues. This review highlights the current knowledge about the roles of ANG-(1–7) in physiology and disease, with particular emphasis on the brain.
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            Phytoecdysteroids: biological aspects.

            Phytoecdysteroids are a family of about 200 plant steroids related in structure to the invertebrate steroid hormone 20-hydroxyecdysone. Typically, they are C27, C28 or C29 compounds possessing a 14alpha-hydroxy-7-en-6-one chromophore and A/B-cis ring fusion (5beta-H). In the present review, the distribution, biosynthesis, biological significance and potential applications of phytoecdysteroids are summarised.
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              Phytoecdysteroids increase protein synthesis in skeletal muscle cells.

              Phytoecdysteroids, which are structurally similar or identical to insect molting hormones, produce a range of effects in mammals, including increasing growth and physical performance. To study the mechanism of action of phytoecdysteroids in mammalian tissue, an in vitro cellular assay of protein synthesis was developed. In C2C12 murine myotubes and human primary myotubes, phytoecdysteroids increased protein synthesis by up to 20%. In vivo, ecdysteroids increased rat grip strength. Ecdysteroid-containing plant extracts produced similar results. The effect was inhibited by a phosphoinositide kinase-3 inhibitor, which suggests a PI3K-mediated mechanism.
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                Author and article information

                Journal
                ars
                Ars Pharmaceutica (Internet)
                Ars Pharm
                Universidad de Granada (Granada, Granada, Spain )
                2340-9894
                December 2023
                : 64
                : 4
                : 376-384
                Affiliations
                [1] orgnameFarmacéutico España
                Article
                S2340-98942023000400006 S2340-9894(23)06400400006
                10.30827/ars.v64i4.28863
                54b10cc8-25ed-4337-b264-41e2c5085ae4

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 19 September 2023
                : 10 August 2023
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 41, Pages: 9
                Product

                SciELO Spain

                Categories
                Artículos de Revisión

                Receptor de Angiotensina (1-7) Mas,receptor de estrógenos, receptor acoplado a proteína-G,músculo esquelético,ecdisterona,Ecdiesteroides,G Protein Coupled Receptors,Estrogen Receptor,Angiotensin (1-7) Receptor Mas,Ecdysterone,Ecdysteroids,Skeletal muscle

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