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Afsar B, Afsar RE, Caliskan Y, Lentine KL, Edwards JC. Renin angiotensin system-induced muscle wasting: putative mechanisms and implications for clinicians. Mol Cell Biochem 2024:10.1007/s11010-024-05043-8. [PMID: 38811433 DOI: 10.1007/s11010-024-05043-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
Renin angiotensin system (RAS) alters various mechanisms related to muscle wasting. The RAS system consists of classical and non-classical pathways, which mostly function differently. Classical RAS pathway, operates through angiotensin II (AngII) and angiotensin type 1 receptors, is associated with muscle wasting and sarcopenia. On the other hand, the non-classical RAS pathway, which operates through angiotensin 1-7 and Mas receptor, is protective against sarcopenia. The classical RAS pathway might induce muscle wasting by variety of mechanisms. AngII reduces body weight, via reduction in food intake, possibly by decreasing hypothalamic expression of orexin and neuropeptide Y, insulin like growth factor-1 (IGF-1) and mammalian target of rapamycin (mTOR), signaling, AngII increases skeletal muscle proteolysis by forkhead box transcription factors (FOXO), caspase activation and muscle RING-finger protein-1 transcription. Furthermore, AngII infusion in skeletal muscle reduces phospho-Bad (Ser136) expression and induces apoptosis through increased cytochrome c release and DNA fragmentation. Additionally, Renin angiotensin system activation through AT1R and AngII stimulates tumor necrosis factor-α, and interleukin-6 which induces muscle wasting, Last but not least classical RAS pathway, induce oxidative stress, disturb mitochondrial energy metabolism, and muscle satellite cells which all lead to muscle wasting and decrease muscle regeneration. On the contrary, the non-classical RAS pathway functions oppositely to mitigate these mechanisms and protects against muscle wasting. In this review, we summarize the mechanisms of RAS-induced muscle wasting and putative implications for clinical practice. We also emphasize the areas of uncertainties and suggest potential research areas.
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Affiliation(s)
- Baris Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey.
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA.
| | - Rengin Elsurer Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - Yasar Caliskan
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - Krista L Lentine
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - John C Edwards
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
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Gulyas L, Glaunsinger BA. The general transcription factor TFIIB is a target for transcriptome control during cellular stress and viral infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.16.575933. [PMID: 38746429 PMCID: PMC11092454 DOI: 10.1101/2024.01.16.575933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Many stressors, including viral infection, induce a widespread suppression of cellular RNA polymerase II (RNAPII) transcription, yet the mechanisms underlying transcriptional repression are not well understood. Here we find that a crucial component of the RNA polymerase II holoenzyme, general transcription factor IIB (TFIIB), is targeted for post-translational turnover by two pathways, each of which contribute to its depletion during stress. Upon DNA damage, translational stress, apoptosis, or replication of the oncogenic Kaposi's sarcoma-associated herpesvirus (KSHV), TFIIB is cleaved by activated caspase-3, leading to preferential downregulation of pro-survival genes. TFIIB is further targeted for rapid proteasome-mediated turnover by the E3 ubiquitin ligase TRIM28. KSHV counteracts proteasome-mediated turnover of TFIIB, thereby preserving a sufficient pool of TFIIB for transcription of viral genes. Thus, TFIIB may be a lynchpin for transcriptional outcomes during stress and a key target for nuclear replicating DNA viruses that rely on host transcriptional machinery. Significance Statement Transcription by RNA polymerase II (RNAPII) synthesizes all cellular protein-coding mRNA. Many cellular stressors and viral infections dampen RNAPII activity, though the processes underlying this are not fully understood. Here we describe a two-pronged degradation strategy by which cells respond to stress by depleting the abundance of the key RNAPII general transcription factor, TFIIB. We further demonstrate that an oncogenic human gammaherpesvirus antagonizes this process, retaining enough TFIIB to support its own robust viral transcription. Thus, modulation of RNAPII machinery plays a crucial role in dictating the outcome of cellular perturbation.
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Serova M, Didry-Barca B, Deloux R, Foucault AS, Veillet S, Lafont R, Dilda PJ, Latil M. BIO101 stimulates myoblast differentiation and improves muscle function in adult and old mice. J Cachexia Sarcopenia Muscle 2024; 15:55-66. [PMID: 38064183 PMCID: PMC10834314 DOI: 10.1002/jcsm.13326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 06/14/2023] [Accepted: 08/11/2023] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Muscle aging is associated with a consistent decrease in the ability of muscle tissue to regenerate following intrinsic muscle degradation, injury or overuse. Age-related imbalance of protein synthesis and degradation, mainly regulated by AKT/mTOR pathway, leads to progressive loss of muscle mass. Maintenance of anabolic and regenerative capacities of skeletal muscles may be regarded as a therapeutic option for sarcopenia and other muscle wasting diseases. Our previous studies have demonstrated that BIO101, a pharmaceutical grade 20-hydroxyecdysone, increases protein synthesis through the activation of MAS receptor involved in the protective arm of renin-angiotensin-aldosterone system. The purpose of the present study was to assess the anabolic and pro-differentiating properties of BIO101 on C2C12 muscle cells in vitro and to investigate its effects on adult and old mice models in vivo. METHODS The effects of BIO101 on C2C12 differentiation were assessed using myogenic transcription factors and protein expression of major kinases of AKT/mTOR pathway by Western blot. The in vivo effects of BIO101 have been investigated in BIO101 orally-treated (50 mg/kg/day) adult mice (3 months) for 28 days. To demonstrate potential beneficial effect of BIO101 treatment in a sarcopenic mouse model, we use orally treated 22-month-old C57Bl6/J mice, for 14 weeks with vehicle or BIO101. Mice body and muscle weight were recorded. Physical performances were assessed using running capacity and muscle contractility tests. RESULTS Anabolic properties of BIO101 were confirmed by the rapid activation of AKT/mTOR, leading to an increase of C2C12 myotubes diameters (+26%, P < 0.001). Pro-differentiating effects of BIO101 on C2C12 myoblasts were revealed by increased expression of muscle-specific differentiation transcription factors (MyoD, myogenin), resulting in increased fusion index and number of nuclei per myotube (+39% and +53%, respectively, at day 6). These effects of BIO101 were like those of angiotensin (1-7) and were abolished with the use of A779, a MAS receptor specific antagonist. Chronic BIO101 oral treatment induced AKT/mTOR activation and anabolic effects accompanied with improved physical performances in adult and old animals (maximal running distance and maximal running velocity). CONCLUSIONS Our data suggest beneficial anabolic and pro-differentiating effects of BIO101 rendering BIO101 a potent drug candidate for treating sarcopenia and possibly other muscle wasting disorders.
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Affiliation(s)
| | | | | | | | | | - René Lafont
- Biophytis, Sorbonne Université, Paris, France
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Li N, Zhang Q, Dai S, Rao W, Shi H, Ding L, Hong M. Angiotensin-(1-7) plays an important role in regulating spermatogenesis in Trachemys scripta elegans under salinity stress. J Exp Biol 2024; 227:jeb246742. [PMID: 38149682 DOI: 10.1242/jeb.246742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/13/2023] [Indexed: 12/28/2023]
Abstract
Elevation in water salinity can threaten the spermatogenesis and fertility of freshwater animals. The role of the renin-angiotensin system (RAS) in regulating spermatogenesis has attracted considerable attention. Our previous study found that red-eared sliders (Trachemys scripta elegans), could survive in 10 PSU water for over 1 year. To understand the chronic impact of salinity on testicular spermatogenesis and underlying mechanisms, male T. s. elegans were subjected to treatment with water of 5 PSU and 10 PSU for a year, and spermatogenesis and regulation of the RAS signal pathway was assessed. Results showed induced inflammation in the testes of T. s. elegans in the 10 PSU group, as evidenced by a decrease in the number of testicular germ cells from 1586 to 943. Compared with the control group, the levels of proinflammatory genes, including TNF-α, IL-12A and IL-6 were elevated 3.1, 0.3, and 1.4 times, respectively, in animals exposed to 10 PSU water. Testicular antiapoptotic processes of T. s. elegans might involve the vasoactive peptide angiotensin-(1-7) in the RAS, as its level was significantly increased from 220.2 ng ml-1 in controls to 419.2 ng ml-1 in the 10 PSU group. As expected, specific inhibitor (A-779) for the Ang-(1-7) acceptor effectively prevented the salinity-induced upregulation of genes encoding anti-inflammatory and antiapoptotic factors (TGF-β1, Bcl-6) in the testis of the 10 PSU animals, whereas it promoted the upregulation of proinflammatory and proapoptotic factors (TNF-α, IL-12A, IL-6, Bax and caspase-3). Our data indicated that Ang-(1-7) attenuates the effect of salinity on inflammation and apoptosis of the testis in T. s. elegans. A new perspective to prevent salinity-induced testis dysfunction is provided.
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Affiliation(s)
- Na Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Qiongyu Zhang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Shiyu Dai
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Wenzhuo Rao
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Haitao Shi
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Li Ding
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Meiling Hong
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
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Valero-Breton M, Tacchi F, Abrigo J, Simon F, Cabrera D, Cabello-Verrugio C. Angiotensin-(1-7) improves skeletal muscle regeneration. Eur J Transl Myol 2023; 33:12037. [PMID: 38112612 PMCID: PMC10811632 DOI: 10.4081/ejtm.2023.12037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 11/21/2023] [Indexed: 12/21/2023] Open
Abstract
Skeletal muscle possesses regenerative potential via satellite cells, compromised in muscular dystrophies leading to fibrosis and fat infiltration. Angiotensin II (Ang-II) is commonly associated with pathological states. In contrast, Angiotensin (1-7) [Ang-(1-7)] counters Ang-II, acting via the Mas receptor. While Ang-II affects skeletal muscle regeneration, the influence of Ang-(1-7) remains to be elucidated. Therefore, this study aims to investigate the role of Ang-(1-7) in skeletal muscle regeneration. C2C12 cells were differentiated in the absence or presence of 10 nM of Ang-(1-7). The diameter of myotubes and protein levels of myogenin and myosin heavy chain (MHC) were determined. C57BL/6 WT male mice 16-18 weeks old) were randomly assigned to injury-vehicle, injury-Ang-(1-7), and control groups. Ang-(1-7) was administered via osmotic pumps, and muscle injury was induced by injecting barium chloride to assess muscle regeneration through histological analyses. Moreover, embryonic myosin (eMHC) and myogenin protein levels were evaluated. C2C12 myotubes incubated with Ang-(1-7) showed larger diameters than the untreated group and increased myogenin and MHC protein levels during differentiation. Ang-(1-7) administration enhances regeneration by promoting a larger diameter of new muscle fibers. Furthermore, higher numbers of eMHC (+) fibers were observed in the injured-Ang-(1-7), which also had a larger diameter. Moreover, eMHC and myogenin protein levels were elevated, supporting enhanced regeneration due to Ang-(1-7) administration. Ang-(1-7) effectively promotes differentiation in vitroand improves muscle regeneration in the context of injuries, with potential implications for treating muscle-related disorders.
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Affiliation(s)
- Mayalen Valero-Breton
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences. Universidad Andres Bello, Santiago.
| | - Franco Tacchi
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences. Universidad Andres Bello, Santiago.
| | - Johanna Abrigo
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences. Universidad Andres Bello, Santiago.
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), University of Chile, Santiago.
| | - Daniel Cabrera
- Department of Gastroenterology, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago, Chile; Faculty of Medical Sciences, Universidad Bernardo O Higgins, Santiago.
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences. Universidad Andres Bello, Santiago.
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Is the anti-aging effect of ACE2 due to its role in the renin-angiotensin system?-Findings from a comparison of the aging phenotypes of ACE2-deficient, Tsukuba hypertensive, and Mas-deficient mice. Hypertens Res 2023; 46:1210-1220. [PMID: 36788301 PMCID: PMC9925940 DOI: 10.1038/s41440-023-01189-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 02/16/2023]
Abstract
Angiotensin converting enzyme 2 (ACE2) functions as an enzyme that produces angiotensin 1-7 (A1-7) from angiotensin II (AII) in the renin-angiotensin system (RAS). We evaluated aging phenotypes, especially skeletal muscle aging, in ACE2 systemically deficient (ACE2 KO) mice and found that ACE2 has an antiaging function. The characteristic aging phenotype observed in ACE2 KO mice was not reproduced in mice deficient in the A1-7 receptor Mas or in Tsukuba hypertensive mice, a model of chronic AII overproduction, suggesting that ACE2 has a RAS-independent antiaging function. In this review, the results we have obtained and related studies on the aging regulatory mechanism mediated by RAS components will be presented and summarized. We evaluated the aging phenotype of ACE2 systemically deficient (ACE2 KO) mice, particularly skeletal muscle aging, and found that ACE2 has an antiaging function. The characteristic aging phenotype observed in ACE2 KO mice was not reproduced in Mas KO mice, angiotensin 1-7 receptor-deficient mice or in Tsukuba hypertensive mice, a model of chronic angiotensin II overproduction, suggesting that the antiaging functions of ACE2 are independent of the renin-angiotensin system (RAS).
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Gonzalez A, Abrigo J, Achiardi O, Simon F, Cabello-Verrugio C. Intensive care unit-acquired weakness: From molecular mechanisms to its impact in COVID-2019. Eur J Transl Myol 2022; 32. [PMID: 36036350 PMCID: PMC9580540 DOI: 10.4081/ejtm.2022.10511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/08/2022] [Indexed: 01/08/2023] Open
Abstract
Intensive Care Unit-Acquired Weakness (ICU-AW) is a generalized and symmetric neuromuscular dysfunction associated with critical illness and its treatments. Its incidence is approximately 80% in intensive care unit patients, and it manifests as critical illness polyneuropathy, critical illness myopathy, and muscle atrophy. Intensive care unit patients can lose an elevated percentage of their muscle mass in the first days after admission, producing short- and long-term sequelae that affect patients’ quality of life, physical health, and mental health. In 2019, the world was faced with coronavirus disease 2019 (COVID-19), caused by the acute respiratory syndrome coronavirus 2. COVID-19 produces severe respiratory disorders, such as acute respiratory distress syndrome, which increases the risk of developing ICU-AW. COVID-19 patients treated in intensive care units have shown early diffuse and symmetrical muscle weakness, polyneuropathy, and myalgia, coinciding with the clinical presentation of ICU-AW. Besides, these patients require prolonged intensive care unit stays, invasive mechanical ventilation, and intensive care unit pharmacological therapy, which are risk factors for ICU-AW. Thus, the purposes of this review are to discuss the features of ICU-AW and its effects on skeletal muscle. Further, we will describe the mechanisms involved in the probable development of ICU-AW in severe COVID-19 patients.
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Albadrani H, Ammar T, Bader M, Renaud JM. Angiotensin 1-7 prevents the excessive force loss resulting from 14- and 28-day denervation in mouse EDL and soleus muscle. J Gen Physiol 2021; 153:212748. [PMID: 34739541 PMCID: PMC8576869 DOI: 10.1085/jgp.201912556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 06/30/2021] [Accepted: 08/11/2021] [Indexed: 11/20/2022] Open
Abstract
Denervation leads to muscle atrophy, which is described as muscle mass and force loss, the latter exceeding expectation from mass loss. The objective of this study was to determine the efficiency of angiotensin (Ang) 1–7 at reducing muscle atrophy in mouse extensor digitorum longus (EDL) and soleus following 14- and 28-d denervation periods. Some denervated mice were treated with Ang 1–7 or diminazene aceturate (DIZE), an ACE2 activator, to increase Ang 1–7 levels. Ang 1–7/DIZE treatment had little effect on muscle mass loss and fiber cross-sectional area reduction. Ang 1–7 and DIZE fully prevented the loss of tetanic force normalized to cross-sectional area and accentuated the increase in twitch force in denervated muscle. However, they did not prevent the shift of the force–frequency relationship toward lower stimulation frequencies. The Ang 1–7/DIZE effects on twitch and tetanic force were completely blocked by A779, a MasR antagonist, and were not observed in MasR−/− muscles. Ang 1–7 reduced the extent of membrane depolarization, fully prevented the loss of membrane excitability, and maintained the action potential overshoot in denervated muscles. Ang 1–7 had no effect on the changes in α-actin, myosin, or MuRF-1, atrogin-1 protein content or the content of total or phosphorylated Akt, S6, and 4EPB. This is the first study that provides evidence that Ang 1–7 maintains normal muscle function in terms of maximum force and membrane excitability during 14- and 28-d periods after denervation.
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Affiliation(s)
- Hind Albadrani
- University of Ottawa, Department of Cellular and Molecular Medicine, Ottawa, Ontario, Canada.,Majmaah University, Department of Medical Laboratory Sciences, Al Majma'ah, Saudi Arabia
| | - T Ammar
- University of Ottawa, Department of Cellular and Molecular Medicine, Ottawa, Ontario, Canada
| | - Michael Bader
- Max-Delbrück Center for Molecular Medicine, Berlin-Buch, Germany.,University of Lübeck, Institute for Biology, Lübeck, Germany.,Charité University Medicine, Berlin, Germany.,German Center for Cardiovascular Research, Berlin, Germany
| | - Jean-Marc Renaud
- University of Ottawa, Department of Cellular and Molecular Medicine, Ottawa, Ontario, Canada
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Abrigo J, Simon F, Cabrera D, Vilos C, Cabello-Verrugio C. Combined Administration of Andrographolide and Angiotensin- (1-7) Synergically Increases the Muscle Function and Strength in Aged Mice. Curr Mol Med 2021; 22:908-918. [PMID: 34875988 DOI: 10.2174/1566524021666211207112106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 05/13/2021] [Accepted: 05/15/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Sarcopenia is a progressive and generalized skeletal muscle disorder characterized by muscle weakness, loss of muscle mass, and decline in the capacity of force generation. Aging can cause sarcopenia. Several therapeutic strategies have been evaluated to prevent or alleviate this disorder. One of them is angiotensin 1-7 [Ang-(1-7)], an anti-atrophic peptide for skeletal muscles that regulates decreased muscle mass for several causes, including aging. Another regulator of muscle mass and function is andrographolide, a bicyclic diterpenoid lactone that decreases the nuclear factor kappa B (NF-κB) signaling and attenuates the severity of some muscle diseases. OBJECTIVE Evaluate the effect of combined administration of Ang-(1-7) with andrographolide on the physical performance, muscle strength, and fiber´s diameter in a murine model of sarcopenia by aging. METHODS Aged male mice of the C57BL/6J strain were treated with Andrographolide, Ang-(1-7), or combined for three months. The physical performance, muscle strength, and fiber´s diameter were measured. RESULTS The results showed that aged mice (24 months old) treated with Ang-(1-7) or Andrographolide improved their performance on a treadmill test, muscle strength, and their fiber´s diameter compared to aged mice without treatment. The combined administration of Ang-(1-7) with andrographolide to aged mice has an enhanced synergically effect on physical performance, muscle strength, and fiber´s diameter. CONCLUSION Our results indicated that in aged mice, the effects of andrographolide and Ang-(1-7) on muscle function, strength, and fiber´s diameter are potentiated.
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Affiliation(s)
- Johanna Abrigo
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello. Santiago. Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy. Santiago. Chile
| | - Daniel Cabrera
- Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago. Chile
| | - Cristian Vilos
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile. Santiago. Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello. Santiago. Chile
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Nguyen BL, Yoshihara T, Deminice R, Lawrence J, Ozdemir M, Hyatt H, Powers SK. Alterations in renin-angiotensin receptors are not responsible for exercise preconditioning of skeletal muscle fibers. SPORTS MEDICINE AND HEALTH SCIENCE 2021; 3:148-156. [PMID: 35784524 PMCID: PMC9219300 DOI: 10.1016/j.smhs.2021.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 06/15/2021] [Accepted: 06/18/2021] [Indexed: 11/27/2022] Open
Abstract
Endurance exercise training promotes a protective phenotype in skeletal muscle known as exercise preconditioning. Exercise preconditioning protects muscle fibers against a variety of threats including inactivity-induced muscle atrophy. The mechanism(s) responsible for exercise preconditioning remain unknown and are explored in these experiments. Specifically, we investigated the impact of endurance exercise training on key components of the renin-angiotensin system (RAS). The RAS was targeted because activation of the classical axis of the RAS pathway via angiotensin II type I receptors (AT1Rs) promotes muscle atrophy whereas activation of the non-classical RAS axis via Mas receptors (MasRs) inhibits the atrophic signaling of the classical RAS pathway. Guided by prior studies, we hypothesized that an exercise-induced decrease in AT1Rs and/or increases in MasRs in skeletal muscle fibers is a potential mechanism responsible for exercise preconditioning. Following endurance exercise training in rats, we examined the abundance of AT1Rs and MasRs in both locomotor and respiratory muscles. Our results indicate that endurance exercise training does not alter the protein abundance of AT1Rs or MasRs in muscle fibers from the diaphragm, plantaris, and soleus muscles compared to sedentary controls (p > 0.05). Furthermore, fluorescent angiotensin II (AngII) binding analyses confirm our results that exercise preconditioning does not alter the protein abundance of AT1Rs in the diaphragm, plantaris, and soleus (p > 0.05). This study confirms that exercise-induced changes in RAS receptors are not a key mechanism that contributes to the beneficial effects of exercise preconditioning in skeletal muscle fibers.
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Affiliation(s)
- Branden L. Nguyen
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, 32611, Florida, USA
| | - Toshinori Yoshihara
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, 32611, Florida, USA
- Department of Exercise Physiology, Juntendo University, Tokyo, 270-1695, Japan
| | - Rafael Deminice
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, 32611, Florida, USA
- Department of Physical Education, University of Estadual of Londrina, Londrina, 10011, Brazil
| | - Jensen Lawrence
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, 32611, Florida, USA
| | - Mustafa Ozdemir
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, 32611, Florida, USA
| | - Hayden Hyatt
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, 32611, Florida, USA
| | - Scott K. Powers
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, 32611, Florida, USA
- Corresponding authors. Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, 32611, USA.
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Awad AS, Nour El-Din M, Kamel R. CoQ10 augments candesartan protective effect against tourniquet-induced hind limb ischemia-reperfusion: Involvement of non-classical RAS and ROS pathways. Saudi Pharm J 2021; 29:724-733. [PMID: 34400868 PMCID: PMC8347674 DOI: 10.1016/j.jsps.2021.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/11/2021] [Indexed: 11/21/2022] Open
Abstract
Tourniquet is a well-established model of hind limb ischemia–reperfusion (HLI/R) in rats. Nevertheless, measures should be taken to alleviate the expected injury from ischemia/ reperfusion (I/R). In the present study, 30 adult male Sprague-Dawley rats were randomly divided into 5 groups (n = 6): control, HLI/R, HLI/R given candesartan (1 mg/kg, P.O); HLI/R given Coenzyme Q10 (CoQ10) (10 mg/kg, P.O); HLI/R given candesartan (0.5 mg/kg) and CoQ10 (5 mg/kg). The drugs were administered for 7 days starting one hour after reperfusion. Candesartan and CoQ10 as well as their combination suppressed gastrocnemius content of angiotensin II while they raised angiotensin-converting enzyme 2 (ACE2) activity, angiotensin (1–7) expression, and Mas receptor mRNA level. Consequently, candesartan and/or CoQ10 reversed the oxidative stress and inflammatory changes that occurred following HLI/R as demonstrated by the rise of SOD activity and the decline of MDA, TNF-α, and IL-6 skeletal muscle content. Additionally, candesartan and/or CoQ10 diminished gastrocnemius active caspase-3 level and phospho-p38 MAPK protein expression. Our study proved that CoQ10 enhanced the beneficial effect of candesartan in a model of tourniquet-induced HLI/R by affecting classical and non-classical renin-angiotensin system (RAS) pathway. To our knowledge, this is the first study showing the impact of CoQ10 on skeletal muscle RAS in rats.
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Affiliation(s)
- Azza S Awad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University (Girls), Nasr City, Egypt.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Mahmoud Nour El-Din
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Sadat City (USC), Menoufia, Egypt.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Rehab Kamel
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
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12
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Peris-Moreno D, Cussonneau L, Combaret L, Polge C, Taillandier D. Ubiquitin Ligases at the Heart of Skeletal Muscle Atrophy Control. Molecules 2021; 26:molecules26020407. [PMID: 33466753 PMCID: PMC7829870 DOI: 10.3390/molecules26020407] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/08/2021] [Accepted: 01/10/2021] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle loss is a detrimental side-effect of numerous chronic diseases that dramatically increases mortality and morbidity. The alteration of protein homeostasis is generally due to increased protein breakdown while, protein synthesis may also be down-regulated. The ubiquitin proteasome system (UPS) is a master regulator of skeletal muscle that impacts muscle contractile properties and metabolism through multiple levers like signaling pathways, contractile apparatus degradation, etc. Among the different actors of the UPS, the E3 ubiquitin ligases specifically target key proteins for either degradation or activity modulation, thus controlling both pro-anabolic or pro-catabolic factors. The atrogenes MuRF1/TRIM63 and MAFbx/Atrogin-1 encode for key E3 ligases that target contractile proteins and key actors of protein synthesis respectively. However, several other E3 ligases are involved upstream in the atrophy program, from signal transduction control to modulation of energy balance. Controlling E3 ligases activity is thus a tempting approach for preserving muscle mass. While indirect modulation of E3 ligases may prove beneficial in some situations of muscle atrophy, some drugs directly inhibiting their activity have started to appear. This review summarizes the main signaling pathways involved in muscle atrophy and the E3 ligases implicated, but also the molecules potentially usable for future therapies.
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13
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ACE2, angiotensin 1-7 and skeletal muscle: review in the era of COVID-19. Clin Sci (Lond) 2020; 134:3047-3062. [PMID: 33231620 PMCID: PMC7687025 DOI: 10.1042/cs20200486] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022]
Abstract
Angiotensin converting enzyme-2 (ACE2) is a multifunctional transmembrane protein recently recognised as the entry receptor of the virus causing COVID-19. In the renin–angiotensin system (RAS), ACE2 cleaves angiotensin II (Ang II) into angiotensin 1-7 (Ang 1-7), which is considered to exert cellular responses to counteract the activation of the RAS primarily through a receptor, Mas, in multiple organs including skeletal muscle. Previous studies have provided abundant evidence suggesting that Ang 1-7 modulates multiple signalling pathways leading to protection from pathological muscle remodelling and muscle insulin resistance. In contrast, there is relatively little evidence to support the protective role of ACE2 in skeletal muscle. The potential contribution of endogenous ACE2 to the regulation of Ang 1-7-mediated protection of these muscle pathologies is discussed in this review. Recent studies have suggested that ACE2 protects against ageing-associated muscle wasting (sarcopenia) through its function to modulate molecules outside of the RAS. Thus, the potential association of sarcopenia with ACE2 and the associated molecules outside of RAS is also presented herein. Further, we introduce the transcriptional regulation of muscle ACE2 by drugs or exercise, and briefly discuss the potential role of ACE2 in the development of COVID-19.
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14
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Angiotensin-(1-7) Prevents Lipopolysaccharide-Induced Autophagy via the Mas Receptor in Skeletal Muscle. Int J Mol Sci 2020; 21:ijms21249344. [PMID: 33302427 PMCID: PMC7762589 DOI: 10.3390/ijms21249344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/27/2020] [Accepted: 12/04/2020] [Indexed: 12/18/2022] Open
Abstract
Skeletal muscle atrophy, which occurs in lipopolysaccharide (LPS)-induced sepsis, causes a severe muscle function reduction. The increased autophagy contributes to sepsis-induced skeletal muscle atrophy in a model of LPS injection, increasing LC3II/LC3I ratio, autophagy flux, and autophagosomes. Angiotensin-(1-7) (Ang-(1-7)) has anti-atrophic effects via the Mas receptor in skeletal muscle. However, the impact of Ang-(1-7) on LPS-induced autophagy is unknown. In this study, we determined the effect of Ang-(1-7) on sepsis-induced muscle autophagy. C57BL6 wild-type (WT) mice and mice lacking the Mas receptor (KO Mas) were injected with LPS together with the systemic administration of Ang-(1-7) to determine autophagy in skeletal muscle. We also evaluated autophagy and p38 and c-Jun N-terminal kinase (JNK)activation. Our results show that Ang-(1-7) prevents LPS-induced autophagy in the diaphragm, tibialis anterior, and gastrocnemius of WT mice, which is demonstrated by a decrease in the LC3II/LC3I ratio and mRNA levels of lc3b and ctsl. This effect was lost in KO Mas mice, suggesting the role of the Mas receptor. The results in C2C12 cells show that Ang-(1-7) reduces several LPS-dependent effects, such as autophagy (LC3II/LC3I ratio, autophagic flux, and autophagosomes), activation of p38 and JNK, B-cell lymphoma-2 (BCL2) phosphorylation, and disassembly of the Beclin1/BCL2 complex. In conclusion, Ang-(1-7)/Mas receptor reduces LPS-induced autophagy in skeletal muscle. In vitro assays indicate that Ang-(1-7) prevents LPS-induced autophagy and modifies the MAPK signaling and the disassembly of a complex involved at the beginning of autophagy.
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15
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Sarcopenia Induced by Chronic Liver Disease in Mice Requires the Expression of the Bile Acids Membrane Receptor TGR5. Int J Mol Sci 2020; 21:ijms21217922. [PMID: 33113850 PMCID: PMC7662491 DOI: 10.3390/ijms21217922] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 12/12/2022] Open
Abstract
Sarcopenia is a condition of muscle dysfunction, commonly associated with chronic liver disease (CLD), characterized by a decline in muscle strength, the activation of the ubiquitin-proteasome system (UPS), and oxidative stress. We recently described a murine model of CLD-induced sarcopenia by intake of hepatotoxin 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC), which presents an increase in plasma bile acids (BA). BA induced skeletal muscle atrophy through a mechanism dependent on the Takeda G protein-coupled receptor 5 (TGR5) receptor. In the present study, we evaluated the role of TGR5 signaling in the development of sarcopenia using a model of DDC-induced CLD in C57BL6 wild-type (WT) mice and mice deficient in TGR5 expression (TGR5−/− mice). The results indicate that the decline in muscle function and contractibility induced by the DDC diet is dependent on TGR5 expression. TGR5 dependence was also observed for the decrease in fiber diameter and sarcomeric proteins, as well as for the fast-to-slow shift in muscle fiber type. UPS overactivation, indicated by increased atrogin-1/MAFbx (atrogin-1) and muscle RING-finger protein-1 (MuRF-1) protein levels and oxidative stress, was abolished in tibialis anterior muscles from TGR5−/− mice. Our results collectively suggest that all sarcopenia features induced by the DDC-supplemented diet in mice are dependent on TGR5 receptor expression.
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16
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Gonzalez A, Orozco-Aguilar J, Achiardi O, Simon F, Cabello-Verrugio C. SARS-CoV-2/Renin-Angiotensin System: Deciphering the Clues for a Couple with Potentially Harmful Effects on Skeletal Muscle. Int J Mol Sci 2020; 21:ijms21217904. [PMID: 33114359 PMCID: PMC7663203 DOI: 10.3390/ijms21217904] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/09/2020] [Accepted: 10/21/2020] [Indexed: 01/08/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus (SARS-CoV-2) has produced significant health emergencies worldwide, resulting in the declaration by the World Health Organization of the coronavirus disease 2019 (COVID-19) pandemic. Acute respiratory syndrome seems to be the most common manifestation of COVID-19. A high proportion of patients require intensive care unit admission and mechanical ventilation (MV) to survive. It has been well established that angiotensin-converting enzyme type 2 (ACE2) is the primary cellular receptor for SARS-CoV-2. ACE2 belongs to the renin–angiotensin system (RAS), composed of several peptides, such as angiotensin II (Ang II) and angiotensin (1-7) (Ang-(1-7)). Both peptides regulate muscle mass and function. It has been described that SARS-CoV-2 infection, by direct and indirect mechanisms, affects a broad range of organ systems. In the skeletal muscle, through unbalanced RAS activity, SARS-CoV-2 could induce severe consequences such as loss of muscle mass, strength, and physical function, which will delay and interfere with the recovery process of patients with COVID-19. This article discusses the relationship between RAS, SARS-CoV-2, skeletal muscle, and the potentially harmful consequences for skeletal muscle in patients currently infected with and recovering from COVID-19.
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Affiliation(s)
- Andrea Gonzalez
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (A.G.); (J.O.-A.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Josué Orozco-Aguilar
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (A.G.); (J.O.-A.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Oscar Achiardi
- Escuela de Kinesiología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso 2340025, Chile;
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Chile, Santiago 8370146, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (A.G.); (J.O.-A.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
- Correspondence: ; Tel./Fax: +56-227-703-665
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17
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Cao C, Hasegawa Y, Hayashi K, Takemoto Y, Kim-Mitsuyama S. Chronic Angiotensin 1-7 Infusion Prevents Angiotensin-II-Induced Cognitive Dysfunction and Skeletal Muscle Injury in a Mouse Model of Alzheimer's Disease. J Alzheimers Dis 2020; 69:297-309. [PMID: 30958350 DOI: 10.3233/jad-181000] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is increasingly viewed as a neurological disease accompanied by a systemic disorder. Accumulating evidence supports that angiotensin II and angiotensin 1-7 exert opposite effects on various organs including the brain. However, the interaction between angiotensin II and angiotensin 1-7 in AD remains to be defined. The present study was undertaken to examine the interaction between these peptides in AD. 5XFAD mice, a useful model of AD, were separated into three groups: 1) saline-infused, 2) angiotensin II-infused, and 3) angiotensin II-infused and angiotensin 1-7-co-infused. These peptides were systemically given to 5XFAD mice via osmotic minipump for 4 weeks. Systemic angiotensin II infusion for 4 weeks induced significant hypertension in both wild-type and 5XFAD mice. Angiotensin II induced cognitive abnormality in 5XFAD mice as estimated by the Morris water maze test and the nest building test, and this effect was associated with cerebral blood flow reduction, cortical arterial amyloid-β deposition, hippocampal inflammation, and neuron loss in 5XFAD mice. In addition, angiotensin II infusion led to gastrocnemius muscle atrophy in 5XFAD mice. Co-infusion of angiotensin 1-7 prevented the above mentioned detrimental effects of angiotensin II in the brain and gastrocnemius muscle in 5XFAD mice, without significant influence on blood pressure. The left ventricular hypertrophic response to angiotensin II was attenuated in 5XFAD mice compared with wild-type mice, which was not significantly altered by co-administration of angiotensin 1-7. Our results show that angiotensin 1-7 counteracts angiotensin II-induced cognitive impairment, brain injury, and skeletal muscle injury in AD mice.
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Affiliation(s)
- Cheng Cao
- Department of Pharmacology and Molecular Therapeutics, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.,Program for Leading Graduate Schools "HIGO (Health life Science: Interdisciplinary and Glocal Oriented) Program", Kumamoto University, Chuo-ku, Kumamoto, Japan
| | - Yu Hasegawa
- Department of Pharmacology and Molecular Therapeutics, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan
| | - Kenyu Hayashi
- Department of Pharmacology and Molecular Therapeutics, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan
| | - Yushin Takemoto
- Department of Pharmacology and Molecular Therapeutics, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan
| | - Shokei Kim-Mitsuyama
- Department of Pharmacology and Molecular Therapeutics, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan
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18
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Abrigo J, Gonzalez F, Aguirre F, Tacchi F, Gonzalez A, Meza MP, Simon F, Cabrera D, Arrese M, Karpen S, Cabello-Verrugio C. Cholic acid and deoxycholic acid induce skeletal muscle atrophy through a mechanism dependent on TGR5 receptor. J Cell Physiol 2020; 236:260-272. [PMID: 32506638 DOI: 10.1002/jcp.29839] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/04/2020] [Accepted: 05/21/2020] [Indexed: 12/15/2022]
Abstract
Skeletal muscle atrophy is characterized by the degradation of myofibrillar proteins, such as myosin heavy chain or troponin. An increase in the expression of two muscle-specific E3 ligases, atrogin-1 and MuRF-1, and oxidative stress are involved in muscle atrophy. Patients with chronic liver diseases (CLD) develop muscle wasting. Several bile acids increase in plasma during cholestatic CLD, among them, cholic acid (CA) and deoxycholic acid (DCA). The receptor for bile acids, TGR5, is expressed in healthy skeletal muscles. TGR5 is involved in the regulation of muscle differentiation and metabolic changes. In this paper, we evaluated the participation of DCA and CA in the generation of an atrophic condition in myotubes and isolated fibers from the muscle extracted from wild-type (WT) and TGR5-deficient (TGR5-/- ) male mice. The results show that DCA and CA induce a decrease in diameter, and myosin heavy chain (MHC) protein levels, two typical atrophic features in C2 C12 myotubes. We also observed similar results when INT-777 agonists activated the TGR5 receptor. To evaluate the participation of TGR5 in muscle atrophy induced by DCA and CA, we used a culture of muscle fiber isolated from WT and TGR5-/- mice. Our results show that DCA and CA decrease the fiber diameter and MHC protein levels, and there is an increase in atrogin-1, MuRF-1, and oxidative stress in WT fibers. The absence of TGR5 in fibers abolished all these effects induced by DCA and CA. Thus, we demonstrated that CS and deoxycholic acid induce skeletal muscle atrophy through TGR5 receptor.
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Affiliation(s)
- Johanna Abrigo
- Laboratory of Muscle Pathology, Fragility suand Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Francisco Gonzalez
- Laboratory of Muscle Pathology, Fragility suand Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Francisco Aguirre
- Laboratory of Muscle Pathology, Fragility suand Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Franco Tacchi
- Laboratory of Muscle Pathology, Fragility suand Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Andrea Gonzalez
- Laboratory of Muscle Pathology, Fragility suand Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - María Paz Meza
- Laboratory of Muscle Pathology, Fragility suand Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Chile, Chile.,Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile
| | - Daniel Cabrera
- Departamento de Gastroenterología, Escuela de Medicina-Centro de Envejecimiento y Regeneración (CARE), Facultad de Ciencias Biológicas, Pontifica Universidad Católica de Chile, Santiago, Chile.,Facultad de Ciencias Médicas, Universidad Bernardo OHiggins, Santiago, Chile
| | - Marco Arrese
- Departamento de Gastroenterología, Escuela de Medicina-Centro de Envejecimiento y Regeneración (CARE), Facultad de Ciencias Biológicas, Pontifica Universidad Católica de Chile, Santiago, Chile
| | - Saul Karpen
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility suand Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
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19
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Aguirre F, Abrigo J, Gonzalez F, Gonzalez A, Simon F, Cabello-Verrugio C. Protective Effect of Angiotensin 1-7 on Sarcopenia Induced by Chronic Liver Disease in Mice. Int J Mol Sci 2020; 21:ijms21113891. [PMID: 32485991 PMCID: PMC7312494 DOI: 10.3390/ijms21113891] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/23/2020] [Accepted: 05/28/2020] [Indexed: 12/16/2022] Open
Abstract
Sarcopenia associated with chronic liver disease (CLD) is one of the more common extrahepatic features in patients with these pathologies. Among the cellular alterations observed in the muscle tissue under CLD is the decline in the muscle strength and function, as well as the increased fatigue. Morphological changes, such as a decrease in the fiber diameter and transition in the fiber type, are also reported. At the molecular level, sarcopenia for CLD is characterized by: (i) a decrease in the sarcomeric protein, such as myosin heavy chain (MHC); (ii) an increase in the ubiquitin–proteasome system markers, such as atrogin-1/MAFbx1 and MuRF-1/TRIM63; (iii) an increase in autophagy markers, such as LC3II/LC3I ratio. Among the regulators of muscle mass is the renin-angiotensin system (RAS). The non-classical axis of RAS includes the Angiotensin 1–7 [Ang-(1-7)] peptide and its receptor Mas, which in skeletal muscle has anti-atrophic effect in models of muscle wasting induced by immobilization, lipopolysaccharide, myostatin or angiotensin II. In this paper, we evaluated the effect of Ang-(1-7) on the sarcopenia by CLD in a murine model induced by the 5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) hepatotoxin administered through diet. Our results show that Ang-(1-7) administration prevented the decline of the function and strength of muscle and increased the fatigue detected in the DDC-fed mice. Besides, we observed that the decreased fiber diameter and MHC levels, as well as the transition of fiber types, were all abolished by Ang-(1-7) in mice fed with DDC. Finally, Ang-(1-7) can decrease the atrogin-1 and MuRF-1 expression as well as the autophagy marker in mice treated with DDC. Together, our data support the protective role of Ang-(1-7) on the sarcopenia by CLD in mice.
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Affiliation(s)
- Francisco Aguirre
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (F.A.); (J.A.); (F.G.); (A.G.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Johanna Abrigo
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (F.A.); (J.A.); (F.G.); (A.G.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Francisco Gonzalez
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (F.A.); (J.A.); (F.G.); (A.G.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Andrea Gonzalez
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (F.A.); (J.A.); (F.G.); (A.G.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Chile, Santiago 8370146, Chile
- Laboratory of Integrative Physiopathology, Department of Biological Science, Faculty of Life Science, Universidad Andres Bello, Santiago 8370146, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile; (F.A.); (J.A.); (F.G.); (A.G.)
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile;
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
- Correspondence: ; Tel./Fax: +56227703665
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20
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Song ZW, Jin CL, Ye M, Gao CQ, Yan HC, Wang XQ. Lysine inhibits apoptosis in satellite cells to govern skeletal muscle growth via the JAK2-STAT3 pathway. Food Funct 2020; 11:3941-3951. [PMID: 32338270 DOI: 10.1039/d0fo00047g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Apoptosis is programmed cell death that can be stimulated by external stress or nutrition restrictions. However, the precise mechanism of apoptosis in skeletal muscle remains unknown. The objective of this study was to investigate whether apoptosis could be regulated by lysine (Lys) supplementation and the potential mechanism. In this study, an isobaric tag for relative and absolute quantification (iTRAQ) proteomics analysis of the longissimus dorsi muscle from piglets showed that the Janus family tyrosine kinase (JAK)-signal transducer and activator of transcription (STAT) pathway was involved in Lys deficiency-induced apoptosis and inhibited skeletal muscle growth. Meanwhile, western blotting results demonstrated that Lys deficiency led to apoptosis in the longissimus dorsi muscle with the JAK2-STAT3 pathway inhibition. Interestingly, apoptosis was suppressed, and the JAK2-STAT3 pathway was reactivated after Lys re-supplementation. In addition, the results showed that Lys deficiency-induced apoptosis in satellite cells (SCs) was mediated by the JAK2-STAT3 pathway inhibition. Moreover, the JAK2-STAT3 pathway was reactivated by Lys re-supplementation and suppressed cell apoptosis, and this effect was inhibited after treatment with Tyrphostin B42 (AG 490). In conclusion, we found that Lys inhibits apoptosis in SCs to govern skeletal muscle growth via the JAK2-STAT3 pathway.
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Affiliation(s)
- Zhi-Wen Song
- College of Animal Science, South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry, Guangzhou, Guangdong, China.
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21
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Aravena J, Abrigo J, Gonzalez F, Aguirre F, Gonzalez A, Simon F, Cabello-Verrugio C. Angiotensin (1-7) Decreases Myostatin-Induced NF-κB Signaling and Skeletal Muscle Atrophy. Int J Mol Sci 2020; 21:ijms21031167. [PMID: 32050585 PMCID: PMC7037856 DOI: 10.3390/ijms21031167] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 02/07/2023] Open
Abstract
Myostatin is a myokine that regulates muscle function and mass, producing muscle atrophy. Myostatin induces the degradation of myofibrillar proteins, such as myosin heavy chain or troponin. The main pathway that mediates protein degradation during muscle atrophy is the ubiquitin proteasome system, by increasing the expression of atrogin-1 and MuRF-1. In addition, myostatin activates the NF-κB signaling pathway. Renin–angiotensin system (RAS) also regulates muscle mass. Angiotensin (1-7) (Ang-(1-7)) has anti-atrophic properties in skeletal muscle. In this paper, we evaluated the effect of Ang-(1-7) on muscle atrophy and signaling induced by myostatin. The results show that Ang-(1-7) prevented the decrease of the myotube diameter and myofibrillar protein levels induced by myostatin. Ang-(1-7) also abolished the increase of myostatin-induced reactive oxygen species production, atrogin-1, MuRF-1, and TNF-α gene expressions and NF-κB signaling activation. Ang-(1-7) inhibited the activity mediated by myostatin through Mas receptor, as is demonstrated by the loss of all Ang-(1-7)-induced effects when the Mas receptor antagonist A779 was used. Our results show that the effects of Ang-(1-7) on the myostatin-dependent muscle atrophy and signaling are blocked by MK-2206, an inhibitor of Akt/PKB. Together, these data indicate that Ang-(1-7) inhibited muscle atrophy and signaling induced by myostatin through a mechanism dependent on Mas receptor and Akt/PKB.
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Affiliation(s)
- Javier Aravena
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Johanna Abrigo
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Francisco Gonzalez
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Francisco Aguirre
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Andrea Gonzalez
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Chile, Santiago 8370146, Chile
- Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
- Correspondence: ; Tel.: +5622-770-3665
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22
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Abrigo J, Marín T, Aguirre F, Tacchi F, Vilos C, Simon F, Arrese M, Cabrera D, Cabello-Verrugio C. N-Acetyl Cysteine Attenuates the Sarcopenia and Muscle Apoptosis Induced by Chronic Liver Disease. Curr Mol Med 2019; 20:60-71. [DOI: 10.2174/1566524019666190917124636] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 08/12/2019] [Accepted: 08/29/2019] [Indexed: 12/18/2022]
Abstract
Background:
Sarcopenia is characterized by the loss of muscle mass and
strength (muscle atrophy) because of aging or chronic diseases, such as chronic liver
disease (CLD). Different mechanisms are involved in skeletal muscle atrophy, including
decreased muscle fibre diameter and myosin heavy chain levels and increased
ubiquitin–proteasome pathway activity, oxidative stress and myonuclear apoptosis. We
recently found that all these mechanisms, except myonuclear apoptosis, which was not
evaluated in the previous study, were involved in muscle atrophy associated with
hepatotoxin 5-diethoxycarbonyl-1,4-dihydrocollidine (DDC)-induced CLD.
Objective:
In the present study, we evaluated the involvement of myonuclear apoptosis
in CLD-associated sarcopenia and the effect of N-acetyl cysteine (NAC) treatment on
muscle strength and apoptosis, using a DDC-supplemented diet-fed mouse model.
Methods:
Four-month-old male C57BL6 mice were fed with a standard or DDCsupplemented
diet for six weeks in the absence or presence of NAC treatment.
Results:
Our results showed that NAC attenuated the decrease in muscle fibre diameter
and muscle strength associated with CLD-induced muscle wasting in gastrocnemius
(GA) muscle of DDC-supplemented diet-fed mice. In addition, in GA muscle of the mice
fed with DDC-supplemented diet-induced CLD showed increased myonuclear apoptosis
compared with the GA muscle of the control diet-fed mice, as evidenced by increased
apoptotic nuclei number, caspase-8 and caspase-9 expression, enzymatic activity of
caspase-3 and BAX/BCL-2 ratio. NAC treatment inhibited all the mechanisms
associated with myonuclear apoptosis in the GA muscle.
Conclusion:
To our knowledge, this is the first study which reports the redox regulation
of muscle strength and myonuclear apoptosis in CLD-induced sarcopenia.
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Affiliation(s)
- Johanna Abrigo
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Tabita Marín
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Francisco Aguirre
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Franco Tacchi
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Cristian Vilos
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Marco Arrese
- Departamento de Gastroenterologia, Facultad de Medicina. Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Daniel Cabrera
- Departamento de Gastroenterologia, Facultad de Medicina. Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Claudio Cabello-Verrugio
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
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23
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Winslow MA, Hall SE. Muscle wasting: A review of exercise, classical and non-classical RAS axes. J Cell Mol Med 2019; 23:5836-5845. [PMID: 31273946 PMCID: PMC6714228 DOI: 10.1111/jcmm.14412] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/27/2019] [Accepted: 05/01/2019] [Indexed: 02/06/2023] Open
Abstract
This review identifies how the classical/non‐classical renin‐angiotensin system (RAS) and exercise influence muscle wasting. The classical RAS axis enhances muscle loss through the interaction with NADPH oxidase (NOX), ubiquitin proteasome system (UPS), protein synthesis and fibrosis pathways. The mainstream hypothesis identifies reactive oxygen species (ROS) as the key pathway in muscle, this review recognizes alternative pathways that lead to an increase in muscle wasting through the classical RAS axis. In addition, pathways in which the non‐classical RAS axis and exercise inhibit the classical RAS axis are also explored. The non‐classical RAS axis and exercise have a significant negative impact on ROS production and protein synthesis. The non‐classical RAS axis has been identified in this review to directly affect protein synthesis pathways not by altering the pre‐existing intracellular ROS level, further supporting the idea that muscle wasting caused by the classical RAS system is not entirely due to ROS production. Exercise has been identified to modify the RAS axes making it a therapeutic option.
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Affiliation(s)
- Mark A Winslow
- Department of Kinesiology, Boise State University, Boise, Idaho
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24
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Alyodawi K, Vermeij WP, Omairi S, Kretz O, Hopkinson M, Solagna F, Joch B, Brandt RMC, Barnhoorn S, van Vliet N, Ridwan Y, Essers J, Mitchell R, Morash T, Pasternack A, Ritvos O, Matsakas A, Collins-Hooper H, Huber TB, Hoeijmakers JHJ, Patel K. Compression of morbidity in a progeroid mouse model through the attenuation of myostatin/activin signalling. J Cachexia Sarcopenia Muscle 2019; 10:662-686. [PMID: 30916493 PMCID: PMC6596402 DOI: 10.1002/jcsm.12404] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 12/17/2018] [Accepted: 01/09/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND One of the principles underpinning our understanding of ageing is that DNA damage induces a stress response that shifts cellular resources from growth towards maintenance. A contrasting and seemingly irreconcilable view is that prompting growth of, for example, skeletal muscle confers systemic benefit. METHODS To investigate the robustness of these axioms, we induced muscle growth in a murine progeroid model through the use of activin receptor IIB ligand trap that dampens myostatin/activin signalling. Progeric mice were then investigated for neurological and muscle function as well as cellular profiling of the muscle, kidney, liver, and bone. RESULTS We show that muscle of Ercc1Δ/- progeroid mice undergoes severe wasting (decreases in hind limb muscle mass of 40-60% compared with normal mass), which is largely protected by attenuating myostatin/activin signalling using soluble activin receptor type IIB (sActRIIB) (increase of 30-62% compared with untreated progeric). sActRIIB-treated progeroid mice maintained muscle activity (distance travel per hour: 5.6 m in untreated mice vs. 13.7 m in treated) and increased specific force (19.3 mN/mg in untreated vs. 24.0 mN/mg in treated). sActRIIb treatment of progeroid mice also improved satellite cell function especially their ability to proliferate on their native substrate (2.5 cells per fibre in untreated progeroids vs. 5.4 in sActRIIB-treated progeroids after 72 h in culture). Besides direct protective effects on muscle, we show systemic improvements to other organs including the structure and function of the kidneys; there was a major decrease in the protein content in urine (albumin/creatinine of 4.9 sActRIIB treated vs. 15.7 in untreated), which is likely to be a result in the normalization of podocyte foot processes, which constitute the filtration apparatus (glomerular basement membrane thickness reduced from 224 to 177 nm following sActRIIB treatment). Treatment of the progeric mice with the activin ligand trap protected against the development of liver abnormalities including polyploidy (18.3% untreated vs. 8.1% treated) and osteoporosis (trabecular bone volume; 0.30 mm3 in treated progeroid mice vs. 0.14 mm3 in untreated mice, cortical bone volume; 0.30 mm3 in treated progeroid mice vs. 0.22 mm3 in untreated mice). The onset of neurological abnormalities was delayed (by ~5 weeks) and their severity reduced, overall sustaining health without affecting lifespan. CONCLUSIONS This study questions the notion that tissue growth and maintaining tissue function during ageing are incompatible mechanisms. It highlights the need for future investigations to assess the potential of therapies based on myostatin/activin blockade to compress morbidity and promote healthy ageing.
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Affiliation(s)
- Khalid Alyodawi
- School of Biological Sciences, University of Reading, Reading, UK.,College of Medicine, Wasit University, Kut, Iraq
| | - Wilbert P Vermeij
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands.,Princess Máxima Center, Oncode Institute, Utrecht, The Netherlands
| | - Saleh Omairi
- School of Biological Sciences, University of Reading, Reading, UK.,College of Medicine, Wasit University, Kut, Iraq
| | - Oliver Kretz
- Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.,Department of Medicine IV, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Department of Neuroanatomy, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | | | - Francesca Solagna
- Department of Medicine IV, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Barbara Joch
- Department of Neuroanatomy, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Renata M C Brandt
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Sander Barnhoorn
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Nicole van Vliet
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Yanto Ridwan
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Jeroen Essers
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Radiation Oncology, Erasmus MC, Rotterdam, The Netherlands.,Department of Vascular Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Robert Mitchell
- School of Biological Sciences, University of Reading, Reading, UK
| | - Taryn Morash
- School of Biological Sciences, University of Reading, Reading, UK
| | - Arja Pasternack
- Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - Olli Ritvos
- Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland.,Institute of Molecular Medicine, University of Health Science Center, Houston, TX, USA
| | | | | | - Tobias B Huber
- Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.,Department of Medicine IV, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,BIOSS Center for Biological Signalling Studies, University of Freiburg, Freiburg, Germany.,Freiburg Institute for Advanced Studies and Center for Biological System Analysis, Freiburg, Germany
| | - Jan H J Hoeijmakers
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands.,Princess Máxima Center, Oncode Institute, Utrecht, The Netherlands.,CECAD Forschungszentrum, Universität zu Köln, Cologne, Germany
| | - Ketan Patel
- School of Biological Sciences, University of Reading, Reading, UK.,Freiburg Institute for Advanced Studies and Center for Biological System Analysis, Freiburg, Germany
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25
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Zambelli V, Sigurtà A, Rizzi L, Zucca L, Delvecchio P, Bresciani E, Torsello A, Bellani G. Angiotensin-(1-7) exerts a protective action in a rat model of ventilator-induced diaphragmatic dysfunction. Intensive Care Med Exp 2019; 7:8. [PMID: 30659381 PMCID: PMC6338614 DOI: 10.1186/s40635-018-0218-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 12/25/2018] [Indexed: 12/11/2022] Open
Abstract
Background Ventilator-induced diaphragmatic dysfunction (VIDD) is a common event during mechanical ventilation (MV) leading to rapid muscular atrophy and contractile dysfunction. Recent data show that renin-angiotensin system is involved in diaphragmatic skeletal muscle atrophy after MV. In particular, angiotensin-II can induce marked diaphragm muscle wasting, whereas angiotensin-(1–7) (Ang-(1–7)) could counteract this activity. This study was designed to evaluate the effects of the treatment with Ang-(1–7) in a rat model of VIDD with neuromuscular blocking agent infusion. Moreover, we studied whether the administration of A-779, an antagonist of Ang-(1–7) receptor (Mas), alone or in combination with PD123319, an antagonist of AT2 receptor, could antagonize the effects of Ang-(1–7). Methods Sprague-Dawley rats underwent prolonged MV (8 h), while receiving an iv infusion of sterile saline 0.9% (vehicle) or Ang-(1–7) or Ang-(1–7) + A-779 or Ang-(1–7) + A-779 + PD123319. Diaphragms were collected for ex vivo contractility measurement (with electric stimulation), histological analysis, quantitative real-time PCR, and Western blot analysis. Results MV resulted in a significant reduction of diaphragmatic contractility in all groups of treatment. Ang-(1–7)-treated rats showed higher muscular fibers cross-sectional area and lower atrogin-1 and myogenin mRNA levels, compared to vehicle treatment. Treatment with the antagonists of Mas and Ang-II receptor 2 (AT2R) caused a significant reduction of muscular contractility and an increase of atrogin-1 and MuRF-1 mRNA levels, not affecting the cross-sectional fiber area and myogenin mRNA levels. Conclusions Systemic Ang-(1–7) administration during MV exerts a protective role on the muscular fibers of the diaphragm preserving muscular fibers anatomy, and reducing atrophy. The involvement of Mas and AT2R in the mechanism of action of Ang-(1–7) still remains controversial.
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Affiliation(s)
- Vanessa Zambelli
- Department of Medicine, University of Milano-Bicocca, Monza, Italy
| | - Anna Sigurtà
- Anesthesia and Critical Care, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Laura Rizzi
- Department of Medicine, University of Milano-Bicocca, Monza, Italy
| | - Letizia Zucca
- Department of Medicine, University of Milano-Bicocca, Monza, Italy
| | - Paolo Delvecchio
- Department of Medicine, University of Milano-Bicocca, Monza, Italy
| | - Elena Bresciani
- Department of Medicine, University of Milano-Bicocca, Monza, Italy
| | - Antonio Torsello
- Department of Medicine, University of Milano-Bicocca, Monza, Italy
| | - Giacomo Bellani
- Department of Medicine, University of Milano-Bicocca, Monza, Italy.
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26
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Murphy KT, Hossain MI, Swiderski K, Chee A, Naim T, Trieu J, Haynes V, Read SJ, Stapleton DI, Judge SM, Trevino JG, Judge AR, Lynch GS. Mas Receptor Activation Slows Tumor Growth and Attenuates Muscle Wasting in Cancer. Cancer Res 2018; 79:706-719. [PMID: 30420474 DOI: 10.1158/0008-5472.can-18-1207] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 09/27/2018] [Accepted: 11/07/2018] [Indexed: 01/06/2023]
Abstract
Cancer cachexia is a multifactorial syndrome characterized by a progressive loss of skeletal muscle mass associated with significant functional impairment. Cachexia robs patients of their strength and capacity to perform daily tasks and live independently. Effective treatments are needed urgently. Here, we investigated the therapeutic potential of activating the "alternative" axis of the renin-angiotensin system, involving ACE2, angiotensin-(1-7), and the mitochondrial assembly receptor (MasR), for treating cancer cachexia. Plasmid overexpression of the MasR or pharmacologic angiotensin-(1-7)/MasR activation did not affect healthy muscle fiber size in vitro or in vivo but attenuated atrophy induced by coculture with cancer cells in vitro. In mice with cancer cachexia, the MasR agonist AVE 0991 slowed tumor development, reduced weight loss, improved locomotor activity, and attenuated muscle wasting, with the majority of these effects dependent on the orexigenic and not antitumor properties of AVE 0991. Proteomic profiling and IHC revealed that mechanisms underlying AVE 0991 effects on skeletal muscle involved miR-23a-regulated preservation of the fast, glycolytic fibers. MasR activation is a novel regulator of muscle phenotype, and AVE 0991 has orexigenic, anticachectic, and antitumorigenic effects, identifying it as a promising adjunct therapy for cancer and other serious muscle wasting conditions. SIGNIFICANCE: These findings demonstrate that MasR activation has multiple benefits of being orexigenic, anticachectic, and antitumorigenic, revealing it as a potential adjunct therapy for cancer.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/4/706/F1.large.jpg.See related commentary by Rupert et al., p. 699.
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Affiliation(s)
- Kate T Murphy
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia.
| | - Mohammed I Hossain
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Kristy Swiderski
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Annabel Chee
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Timur Naim
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Jennifer Trieu
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Vanessa Haynes
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Suzannah J Read
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - David I Stapleton
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Jose G Trevino
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, Florida
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
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27
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Powers SK, Morton AB, Hyatt H, Hinkley MJ. The Renin-Angiotensin System and Skeletal Muscle. Exerc Sport Sci Rev 2018; 46:205-214. [PMID: 30001274 DOI: 10.1249/jes.0000000000000158] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The renin-angiotensin system (RAS) plays a key role in the control of blood pressure and fluid homeostasis. Emerging evidence also reveals that hyperactivity of the RAS contributes to skeletal muscle wasting. This review discusses the key role that the RAS plays in skeletal muscle wasting due to congestive heart failure, chronic kidney disease, and ventilator-induced diaphragmatic wasting.
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Affiliation(s)
- Scott K Powers
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL
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28
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Takeshita H, Yamamoto K, Nozato S, Takeda M, Fukada SI, Inagaki T, Tsuchimochi H, Shirai M, Nozato Y, Fujimoto T, Imaizumi Y, Yokoyama S, Nagasawa M, Hamano G, Hongyo K, Kawai T, Hanasaki-Yamamoto H, Takeda S, Takahashi T, Akasaka H, Itoh N, Takami Y, Takeya Y, Sugimoto K, Nakagami H, Rakugi H. Angiotensin-converting enzyme 2 deficiency accelerates and angiotensin 1-7 restores age-related muscle weakness in mice. J Cachexia Sarcopenia Muscle 2018; 9:975-986. [PMID: 30207087 PMCID: PMC6204583 DOI: 10.1002/jcsm.12334] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/02/2018] [Accepted: 06/21/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND A pharmacologic strategy for age-related muscle weakness is desired to improve mortality and disability in the elderly. Angiotensin-converting enzyme 2 (ACE2) cleaves angiotensin II into angiotensin 1-7, a peptide known to protect against acute and chronic skeletal muscle injury in rodents. Since physiological aging induces muscle weakness via mechanisms distinct from other muscle disorders, the role of ACE2-angiotensin 1-7 in age-related muscle weakness remains undetermined. Here, we investigated whether deletion of ACE2 alters the development of muscle weakness by aging and whether angiotensin 1-7 reverses muscle weakness in older mice. METHODS After periodic measurement of grip strength and running distance in male ACE2KO and wild-type mice until 24 months of age, we infused angiotensin 1-7 or vehicle for 4 weeks, and measured grip strength, and excised tissues. Tissues were also excised from younger (3-month-old) and middle-aged (15-month-old) mice. Microarray analysis of RNA was performed using tibialis anterior (TA) muscles from middle-aged mice, and some genes were further tested using RT-PCR. RESULTS Grip strength of ACE2KO mice was reduced at 6 months and was persistently lower than that of wild-type mice (p < 0.01 at 6, 12, 18, and 24-month-old). Running distance of ACE2KO mice was shorter than that of wild-type mice only at 24 months of age [371 ± 26 vs. 479 ± 24 (m), p < 0.01]. Angiotensin 1-7 improved grip strength in both types of older mice, with larger effects observed in ACE2KO mice (% increase, 3.8 ± 1.5 and 13.3 ± 3.1 in wild type and ACE2KO mice, respectively). Older, but not middle-aged ACE2KO mice had higher oxygen consumption assessed by a metabolic cage than age-matched wild-type mice. Angiotensin 1-7 infusion modestly increased oxygen consumption in older mice. There was no difference in a wheel-running activity or glucose tolerance between ACE2KO and wild-type mice and between mice with vehicle and angiotensin 1-7 infusion. Analysis of TA muscles revealed that p16INK4a, a senescence-associated gene, and central nuclei of myofibers increased in middle-aged, but not younger ACE2KO mice. p16INK4a and central nuclei increased in TA muscles of older wild-type mice, but the differences between ACE2KO and wild-type mice remained significant (p < 0.01). Angiotensin 1-7 did not alter the expression of p16INK4a or central nuclei in TA muscles of both types of mice. Muscle ACE2 expression of wild-type mice was the lowest at middle age (2.6 times lower than younger age, p < 0.05). CONCLUSIONS Deletion of ACE2 induced the early manifestation of muscle weakness with signatures of muscle senescence. Angiotensin 1-7 improved muscle function in older mice, supporting future application of the peptide or its analogues in the treatment of muscle weakness in the elderly population.
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Affiliation(s)
- Hikari Takeshita
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Koichi Yamamoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Satoko Nozato
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Masao Takeda
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - So-Ichiro Fukada
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Tadakatsu Inagaki
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Hirotsugu Tsuchimochi
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Mikiyasu Shirai
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Yoichi Nozato
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Taku Fujimoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yuki Imaizumi
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Serina Yokoyama
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Motonori Nagasawa
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Go Hamano
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Kazuhiro Hongyo
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tatsuo Kawai
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiroko Hanasaki-Yamamoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shuko Takeda
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Toshimasa Takahashi
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiroshi Akasaka
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Norihisa Itoh
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoichi Takami
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yasushi Takeya
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Ken Sugimoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hironori Nakagami
- Department of Health Development and Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiromi Rakugi
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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29
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Modulation of the renin-angiotensin system in white adipose tissue and skeletal muscle: focus on exercise training. Clin Sci (Lond) 2018; 132:1487-1507. [PMID: 30037837 DOI: 10.1042/cs20180276] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/13/2018] [Accepted: 06/27/2018] [Indexed: 12/11/2022]
Abstract
Overactivation of the renin-angiotensin (Ang) system (RAS) increases the classical arm (Ang-converting enzyme (ACE)/Ang II/Ang type 1 receptor (AT1R)) to the detriment of the protective arm (ACE2/Ang 1-7/Mas receptor (MasR)). The components of the RAS are present locally in white adipose tissue (WAT) and skeletal muscle, which act co-operatively, through specific mediators, in response to pathophysiological changes. In WAT, up-regulation of the classical arm promotes lipogenesis and reduces lipolysis and adipogenesis, leading to adipocyte hypertrophy and lipid storage, which are related to insulin resistance and increased inflammation. In skeletal muscle, the classical arm promotes protein degradation and increases the inflammatory status and oxidative stress, leading to muscle wasting. Conversely, the protective arm plays a counter-regulatory role by opposing the effect of Ang II. The accumulation of adipose tissue and muscle mass loss is associated with a higher risk of morbidity and mortality, which could be related, in part, to overactivation of the RAS. On the other hand, exercise training (ExT) shifts the balance of the RAS towards the protective arm, promoting the inhibition of the classical arm in parallel with the stimulation of the protective arm. Thus, fat mobilization and maintenance of muscle mass and function are facilitated. However, the mechanisms underlying exercise-induced changes in the RAS remain unclear. In this review, we present the RAS as a key mechanism of WAT and skeletal muscle metabolic dysfunction. Furthermore, we discuss the interaction between the RAS and exercise and the possible underlying mechanisms of the health-related aspects of ExT.
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Sarcopenia in a mice model of chronic liver disease: role of the ubiquitin–proteasome system and oxidative stress. Pflugers Arch 2018; 470:1503-1519. [DOI: 10.1007/s00424-018-2167-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 06/06/2018] [Accepted: 06/11/2018] [Indexed: 02/06/2023]
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Chen J, Zhang W, Xu Q, Zhang J, Chen W, Xu Z, Li C, Wang Z, Zhang Y, Zhen Y, Feng J, Chen J, Chen J. Ang-(1-7) protects HUVECs from high glucose-induced injury and inflammation via inhibition of the JAK2/STAT3 pathway. Int J Mol Med 2018; 41:2865-2878. [PMID: 29484371 DOI: 10.3892/ijmm.2018.3507] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 01/23/2018] [Indexed: 11/06/2022] Open
Abstract
Angiotensin (Ang)‑1‑7, which is catalyzed by angiotensin‑converting enzyme 2 (ACE2) from angiotensin‑II (Ang‑II), exerts multiple biological and pharmacological effects, including cardioprotective effects and endothelial protection. The Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathway has been demonstrated to be involved in diabetes‑associated cardiovascular complications. The present study hypothesized that Ang‑(1‑7) protects against high glucose (HG)‑induced endothelial cell injury and inflammation by inhibiting the JAK2/STAT3 pathway in human umbilical vein endothelial cells (HUVECs). HUVECs were treated with 40 mmol/l glucose (HG) for 24 h to establish a model of HG‑induced endothelial cell injury and inflammation. Protein expression levels of p‑JAK2, t‑JAK2, p‑STAT3, t‑STAT3, NOX‑4, eNOS and cleaved caspase‑3 were tested by western blotting. CCK‑8 assay was performed to assess cell viability of HUVECs. Apoptotic cell death was analyzed by Hoechst 33258 staining. Mitochondrial membrane potential (MMP) was obtained using JC‑1. Superoxide dismutase (SOD) activity was tested by SOD assay kit. Interleukin (IL)‑1β, IL‑10, IL‑12 and TNF‑α levels in culture media were tested by ELISA. The findings demonstrated that exposure of HUVECs to HG for 24 h induced injury and inflammation. This injury and inflammation were significantly ameliorated by pre‑treatment of cells with either Ang‑(1‑7) or AG490, an inhibitor of the JAK2/STAT3 pathway, prior to exposure of the cells to HG. Exposure of the cells to HG also increased the phosphorylation of JAK2/STAT3 (p‑JAK2 and p‑STAT3). Increased activation of the JAK2/STAT3 pathway was attenuated by pre‑treatment with Ang‑(1‑7). To the best of our knowledge, the findings from the present study provided the first evidence that Ang‑(1‑7) protects against HG‑induced injury and inflammation by inhibiting activation of the JAK2/STAT3 pathway in HUVECs.
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Affiliation(s)
- Jianfang Chen
- Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Wei Zhang
- Department of Cardiology, Huangpu Division of The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510700, P.R. China
| | - Qing Xu
- Department of Cardiology, Huangpu Division of The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510700, P.R. China
| | - Jihua Zhang
- Department of Endocrinology, Shanxian Central Hospital of Shandong Province, Shanxian, Shangdong 274300, P.R. China
| | - Wei Chen
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Zhengrong Xu
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Chaosheng Li
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Zhenhua Wang
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Yao Zhang
- Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Yulan Zhen
- Department of Oncology, The Third People's Hospital of Dongguan City, Dongguan, Guangdong 523326, P.R. China
| | - Jianqiang Feng
- Department of Physiology, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Jun Chen
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Jingfu Chen
- Department of Cardiovascular Medicine and Dongguan Cardiovascular Institute, The Third People's Hospital of Dongguan City, Dongguan, Guangdong 523326, P.R. China
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Ábrigo J, Elorza AA, Riedel CA, Vilos C, Simon F, Cabrera D, Estrada L, Cabello-Verrugio C. Role of Oxidative Stress as Key Regulator of Muscle Wasting during Cachexia. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2063179. [PMID: 29785242 PMCID: PMC5896211 DOI: 10.1155/2018/2063179] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 02/07/2018] [Indexed: 12/11/2022]
Abstract
Skeletal muscle atrophy is a pathological condition mainly characterized by a loss of muscular mass and the contractile capacity of the skeletal muscle as a consequence of muscular weakness and decreased force generation. Cachexia is defined as a pathological condition secondary to illness characterized by the progressive loss of muscle mass with or without loss of fat mass and with concomitant diminution of muscle strength. The molecular mechanisms involved in cachexia include oxidative stress, protein synthesis/degradation imbalance, autophagy deregulation, increased myonuclear apoptosis, and mitochondrial dysfunction. Oxidative stress is one of the most common mechanisms of cachexia caused by different factors. It results in increased ROS levels, increased oxidation-dependent protein modification, and decreased antioxidant system functions. In this review, we will describe the importance of oxidative stress in skeletal muscles, its sources, and how it can regulate protein synthesis/degradation imbalance, autophagy deregulation, increased myonuclear apoptosis, and mitochondrial dysfunction involved in cachexia.
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Affiliation(s)
- Johanna Ábrigo
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
| | - Alvaro A. Elorza
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
- 3Centro de Investigaciones Biomédicas, Facultad de Ciencias Biológicas & Facultad de Medicina, Universidad Andres Bello, Santiago, Chile
| | - Claudia A. Riedel
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
| | - Cristian Vilos
- 4Laboratory of Nanomedicine and Targeted Delivery, Center for Integrative Medicine and Innovative Science, Faculty of Medicine, and Center for Bioinformatics and Integrative Biology, Faculty of Biological Sciences, Universidad Andres Bello, Santiago, Chile
- 5Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe Simon
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
| | - Daniel Cabrera
- 6Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- 7Departamento de Ciencias Químicas y Biológicas, Facultad de Salud, Universidad Bernardo O'Higgins, Santiago, Chile
| | - Lisbell Estrada
- 8Centro Integrativo de Biología y Química Aplicada, Universidad Bernardo O'Higgins, Santiago, Chile
| | - Claudio Cabello-Verrugio
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
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Santos RAS, Sampaio WO, Alzamora AC, Motta-Santos D, Alenina N, Bader M, Campagnole-Santos MJ. The ACE2/Angiotensin-(1-7)/MAS Axis of the Renin-Angiotensin System: Focus on Angiotensin-(1-7). Physiol Rev 2018; 98:505-553. [PMID: 29351514 PMCID: PMC7203574 DOI: 10.1152/physrev.00023.2016] [Citation(s) in RCA: 683] [Impact Index Per Article: 113.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 05/09/2017] [Accepted: 06/18/2017] [Indexed: 12/16/2022] Open
Abstract
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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Affiliation(s)
- Robson Augusto Souza Santos
- National Institute of Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais , Belo Horizonte , Brazil ; Department of Biological Sciences, Federal University of Ouro Preto , Ouro Preto , Brazil ; Max-Delbrück-Center for Molecular Medicine (MDC), Berlin , Germany ; Berlin Institute of Health (BIH), Berlin , Germany ; Charité - University Medicine, Berlin , Germany ; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin , Germany ; Institute for Biology, University of Lübeck , Lübeck , Germany
| | - Walkyria Oliveira Sampaio
- National Institute of Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais , Belo Horizonte , Brazil ; Department of Biological Sciences, Federal University of Ouro Preto , Ouro Preto , Brazil ; Max-Delbrück-Center for Molecular Medicine (MDC), Berlin , Germany ; Berlin Institute of Health (BIH), Berlin , Germany ; Charité - University Medicine, Berlin , Germany ; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin , Germany ; Institute for Biology, University of Lübeck , Lübeck , Germany
| | - Andreia C Alzamora
- National Institute of Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais , Belo Horizonte , Brazil ; Department of Biological Sciences, Federal University of Ouro Preto , Ouro Preto , Brazil ; Max-Delbrück-Center for Molecular Medicine (MDC), Berlin , Germany ; Berlin Institute of Health (BIH), Berlin , Germany ; Charité - University Medicine, Berlin , Germany ; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin , Germany ; Institute for Biology, University of Lübeck , Lübeck , Germany
| | - Daisy Motta-Santos
- National Institute of Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais , Belo Horizonte , Brazil ; Department of Biological Sciences, Federal University of Ouro Preto , Ouro Preto , Brazil ; Max-Delbrück-Center for Molecular Medicine (MDC), Berlin , Germany ; Berlin Institute of Health (BIH), Berlin , Germany ; Charité - University Medicine, Berlin , Germany ; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin , Germany ; Institute for Biology, University of Lübeck , Lübeck , Germany
| | - Natalia Alenina
- National Institute of Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais , Belo Horizonte , Brazil ; Department of Biological Sciences, Federal University of Ouro Preto , Ouro Preto , Brazil ; Max-Delbrück-Center for Molecular Medicine (MDC), Berlin , Germany ; Berlin Institute of Health (BIH), Berlin , Germany ; Charité - University Medicine, Berlin , Germany ; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin , Germany ; Institute for Biology, University of Lübeck , Lübeck , Germany
| | - Michael Bader
- National Institute of Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais , Belo Horizonte , Brazil ; Department of Biological Sciences, Federal University of Ouro Preto , Ouro Preto , Brazil ; Max-Delbrück-Center for Molecular Medicine (MDC), Berlin , Germany ; Berlin Institute of Health (BIH), Berlin , Germany ; Charité - University Medicine, Berlin , Germany ; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin , Germany ; Institute for Biology, University of Lübeck , Lübeck , Germany
| | - Maria Jose Campagnole-Santos
- National Institute of Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais , Belo Horizonte , Brazil ; Department of Biological Sciences, Federal University of Ouro Preto , Ouro Preto , Brazil ; Max-Delbrück-Center for Molecular Medicine (MDC), Berlin , Germany ; Berlin Institute of Health (BIH), Berlin , Germany ; Charité - University Medicine, Berlin , Germany ; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin , Germany ; Institute for Biology, University of Lübeck , Lübeck , Germany
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Zhou L, Huang Y, Xie H, Mei X. Buyang Huanwu Tang improves denervation-dependent muscle atrophy by increasing ANGPTL4, and increases NF-κB and MURF1 levels. Mol Med Rep 2017; 17:3674-3680. [PMID: 29257347 PMCID: PMC5802173 DOI: 10.3892/mmr.2017.8306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 07/13/2017] [Indexed: 11/06/2022] Open
Abstract
Denervated-dependent skeletal muscle atrophy (DSMA) is a disorder caused by the peripheral neuro‑disconnection of skeletal muscle. The current study aimed to investigate the molecular mechanism and potential therapeutic strategies for the DSMA. A DSMA rat model was established. A lentiviral vector expressing small interfering RNA (siRNA) targeting angiopoietin‑like protein 4 (ANGPTL4) was generated and injected into the rats that were also treated with Buyang Huanwu Tang (BYHWT). Reverse transcription‑quantitative polymerase chain reaction was performed to examine ANGPTL4 mRNA expression in anterior cervical muscle samples. Western blot assay was used to evaluate ANGPTL4, nuclear factor‑κB (NF‑κB) and muscle RING‑finger protein‑1 (MURF1) expression. The ultrastructure of muscle tissues was viewed using transmission electron microscopy. The cell apoptosis in muscle tissues was detected using the terminal deoxynucleotidyl transferase dUTP nick end labeling. The results indicated that BYHWT treatment increased ANGPTL4 mRNA and protein levels in muscle tissues. The suppression of ANGPTL4 using siRNA significantly increased inflammatory cells compared with the control siRNA group. BYHWT protected the ultrastructure muscle tissues and inhibited cell apoptosis in the DSMA model. The protective effect of BYHWT protected may be mediated by increased expression of NF‑κB p65 and MURF1. In conclusion, BYHWT may improve denervation‑dependent muscle atrophy by increasing ANGPTL4 expression, involving NF‑κB and MURF1 signaling.
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Affiliation(s)
- Lan Zhou
- Basic Theory of Traditional Chinese Medicine Staff Room, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yufang Huang
- Pathological Staff Room, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Hui Xie
- Pharmacological Staff Room, School of Pharmacy, Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Xiaoyun Mei
- Basic Theory of Traditional Chinese Medicine Staff Room, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
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Ábrigo J, Campos F, Simon F, Riedel C, Cabrera D, Vilos C, Cabello-Verrugio C. TGF-β requires the activation of canonical and non-canonical signalling pathways to induce skeletal muscle atrophy. Biol Chem 2017; 399:253-264. [DOI: 10.1515/hsz-2017-0217] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 11/03/2017] [Indexed: 12/20/2022]
Abstract
Abstract
The transforming growth factor type-beta (TGF-β) induces skeletal muscle atrophy characterised by a decrease in the fibre’s diameter and levels of myosin heavy chain (MHC), also as an increase of MuRF-1 expression. In addition, TGF-β induces muscle atrophy by a mechanism dependent on reactive oxygen species (ROS). TGF-β signals by activating both canonical Smad-dependent, and non-canonical signalling pathways such as ERK1/2, JNK1/2, and p38 MAPKs. However, the participation of canonical and non-canonical signalling pathways in the TGF-β atrophic effect on skeletal muscle is unknown. We evaluate the impact of Smad and MAPK signalling pathways on the TGF-β-induced atrophic effect in C2C12 myotubes. The results indicate that TGF-β activates Smad2/3, ERK1/2 and JNK1/2, but not p38 in myotubes. The pharmacological inhibition of Smad3, ERK1/2 and JNK1/2 activation completely abolished the atrophic effect of TGF-β. Finally, the inhibition of these canonical and non-canonical pathways did not decrease the ROS increment, while the inhibition of ROS production entirely abolished the phosphorylation of Smad3, ERK1/2 and JNK1/2. These results suggest that TGF-β requires Smad3, ERK1/2 and JNK1/2 activation to produce skeletal muscle atrophy. Moreover, the induction of ROS by TGF-β is an upstream event to canonical and non-canonical pathways.
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Affiliation(s)
- Johanna Ábrigo
- Departamento de Ciencias Biológicas , Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello , Avenida República 239 , Santiago 8370146 , Chile
- Millennium Institute on Immunology and Immunotherapy , 8331150 Santiago , Chile
| | - Fabian Campos
- Departamento de Ciencias Biológicas , Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello , Avenida República 239 , Santiago 8370146 , Chile
- Millennium Institute on Immunology and Immunotherapy , 8331150 Santiago , Chile
| | - Felipe Simon
- Departamento de Ciencias Biológicas , Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello , Avenida República 239 , Santiago 8370146 , Chile
- Millennium Institute on Immunology and Immunotherapy , 8331150 Santiago , Chile
| | - Claudia Riedel
- Departamento de Ciencias Biológicas , Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello , Avenida República 239 , Santiago 8370146 , Chile
- Millennium Institute on Immunology and Immunotherapy , 8331150 Santiago , Chile
| | - Daniel Cabrera
- Universidad Bernardo O Higgins, Facultad de Salud , Departamento de Ciencias Químicas y Biológicas , 8370993 Santiago , Chile
- Departamento de Gastroenterología, Facultad de Medicina , Pontificia Universidad Católica de Chile , 8331150 Santiago , Chile
| | - Cristian Vilos
- Laboratory of Nanomedicine and Targeted Delivery, Center for Integrative Medicine and Innovative Science, Faculty of Medicine, and Center for Bioinformatics and Integrative Biology, Faculty of Biological Sciences , Universidad Andres Bello , 8370146 Santiago , Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA) , Universidad de Santiago de Chile , 9170022 Santiago , Chile
| | - Claudio Cabello-Verrugio
- Millennium Institute on Immunology and Immunotherapy , 8331150 Santiago , Chile
- Laboratory of Muscle Pathology, Fragility and Aging , Departmento de Ciencias Biológicas, Facultad de Ciencias Biológicas and Facultad de Medicina , Universidad Andres Bello , Avenida República 239 , Santiago 8370146 , Chile
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Frantz EDC, Giori IG, Machado MV, Magliano DC, Freitas FM, Andrade MSB, Vieira AB, Nóbrega ACL, Tibiriçá E. High, but not low, exercise volume shifts the balance of renin-angiotensin system toward ACE2/Mas receptor axis in skeletal muscle in obese rats. Am J Physiol Endocrinol Metab 2017; 313:E473-E482. [PMID: 28679623 DOI: 10.1152/ajpendo.00078.2017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 06/12/2017] [Accepted: 06/30/2017] [Indexed: 01/10/2023]
Abstract
Metabolic syndrome is a cluster of metabolic risk factors that is linked to central obesity, elevated blood pressure, insulin resistance (IR), and dyslipidemia, where the renin-angiotensin system (RAS) may provide a link among them. This study aimed to evaluate volume exercise effects comparing low vs. high volume of chronic aerobic exercise on RAS axes in skeletal muscle in a diet-induced obesity (DIO) rat model. For this, male Wistar-Kyoto rats were fed a standard chow (SC) diet or a high-fat (HF) diet for 32 wk. Animals receiving the HF diet were randomly divided into low exercise volume (LEV, 150 min/wk) and high exercise volume (HEV, 300 min/wk) at the 20th week. After 12 wk of aerobic treadmill training, the body mass and composition, blood pressure, glucose and lipid metabolism, RAS axes, insulin signaling, and inflammatory pathway were performed. HEV slowed the body mass gain, reduced intra-abdominal fat pad and leptin levels, improved total and peripheral body composition and inflammatory cytokine, reduced angiotensin II type 1 receptor expression, and increased Mas receptor protein expression compared with the HF animals. Sedentary groups (SC and HF) presented lower time to exhaustion and maximal velocity compared with the LEV and HEV groups. Both exercise training groups showed reduced resting systolic blood pressure and heart rate, improved glucose tolerance, IR, insulin signaling, and lipid profile. We conclude that the HEV, but not LEV, shifted the balance of RAS toward the ACE2/Mas receptor axis in skeletal muscle, presenting protective effects against the DIO model.
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Affiliation(s)
- Eliete Dalla Corte Frantz
- Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil; and
| | - Isabele Gomes Giori
- Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil; and
| | - Marcus Vinícius Machado
- Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil; and
- Laboratory of Cardiovascular Investigation, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro, Brazil
| | - D'Angelo Carlo Magliano
- Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil; and
| | - Fernanda Marques Freitas
- Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil; and
| | - Mariana Sodré Boêta Andrade
- Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil; and
| | - Aline Bomfim Vieira
- Laboratory of Cardiovascular Investigation, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro, Brazil
| | - Antonio Claudio Lucas Nóbrega
- Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil; and
| | - Eduardo Tibiriçá
- Laboratory of Cardiovascular Investigation, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro, Brazil
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Cabello-Verrugio C, Rivera JC, Garcia D. Skeletal muscle wasting: new role of nonclassical renin-angiotensin system. Curr Opin Clin Nutr Metab Care 2017; 20:158-163. [PMID: 28207424 DOI: 10.1097/mco.0000000000000361] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE OF REVIEW Skeletal muscle can be affected by many physiological and pathological conditions that contribute to the development of muscle weakness, including skeletal muscle loss, inflammatory processes, or fibrosis. Therefore, research into therapeutic treatment alternatives or alleviation of these effects on skeletal muscle is of great importance. RECENT FINDINGS Recent studies have shown that angiotensin (1-7) [Ang-(1-7)] - a vasoactive peptide of the nonclassical axis in the renin-angiotensin system (RAS) - and its Mas receptor are expressed in skeletal muscle. Ang-(1-7), through its Mas receptor, prevents or diminishes deleterious effects induced by skeletal muscle disease or injury. Specifically, the Ang-(1-7)-Mas receptor axis modulates molecular mechanisms involved in muscle mass regulation, such as the ubiquitin proteasome pathway, the insulin-like growth factor type 1/Akt (protein kinase B) pathway, or myonuclear apoptosis, and also inflammation and fibrosis pathways. SUMMARY Although further research into this topic and the possible side effects of Ang-(1-7) is necessary, these findings are promising, and suggest that the Ang-(1-7)-Mas axis can be considered a possible therapeutic target for treating patients with muscular disorders.
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Affiliation(s)
- Claudio Cabello-Verrugio
- aLaboratory of Muscle Pathology, Fragility and Aging, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas & Facultad de Medicina, Universidad Andres Bello, Santiago, Chile bMillennium Institute on Immunology and Immunotherapy, Santiago, Chile
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Karnik SS, Singh KD, Tirupula K, Unal H. Significance of angiotensin 1-7 coupling with MAS1 receptor and other GPCRs to the renin-angiotensin system: IUPHAR Review 22. Br J Pharmacol 2017; 174:737-753. [PMID: 28194766 PMCID: PMC5387002 DOI: 10.1111/bph.13742] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 01/31/2017] [Accepted: 02/06/2017] [Indexed: 12/14/2022] Open
Abstract
Angiotensins are a group of hormonal peptides and include angiotensin II and angiotensin 1-7 produced by the renin angiotensin system. The biology, pharmacology and biochemistry of the receptors for angiotensins were extensively reviewed recently. In the review, the receptor nomenclature committee was not emphatic on designating MAS1 as the angiotensin 1-7 receptor on the basis of lack of classical G protein signalling and desensitization in response to angiotensin 1-7, as well as a lack of consensus on confirmatory ligand pharmacological analyses. A review of recent publications (2013-2016) on the rapidly progressing research on angiotensin 1-7 revealed that MAS1 and two additional receptors can function as 'angiotensin 1-7 receptors', and this deserves further consideration. In this review we have summarized the information on angiotensin 1-7 receptors and their crosstalk with classical angiotensin II receptors in the context of the functions of the renin angiotensin system. It was concluded that the receptors for angiotensin II and angiotensin 1-7 make up a sophisticated cross-regulated signalling network that modulates the endogenous protective and pathogenic facets of the renin angiotensin system.
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Affiliation(s)
- Sadashiva S Karnik
- Department of Molecular Cardiology, Lerner Research InstituteCleveland Clinic FoundationClevelandOhioUSA
| | | | - Kalyan Tirupula
- Department of Molecular Cardiology, Lerner Research InstituteCleveland Clinic FoundationClevelandOhioUSA
- Biological E Limited, ShamirpetHyderabadIndia
| | - Hamiyet Unal
- Department of Molecular Cardiology, Lerner Research InstituteCleveland Clinic FoundationClevelandOhioUSA
- Department of Basic Sciences, Faculty of Pharmacy and Betul Ziya Eren Genome and Stem Cell CenterErciyes UniversityKayseriTurkey
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Márquez-Miranda V, Abrigo J, Rivera JC, Araya-Durán I, Aravena J, Simon F, Pacheco N, González-Nilo FD, Cabello-Verrugio C. The complex of PAMAM-OH dendrimer with Angiotensin (1-7) prevented the disuse-induced skeletal muscle atrophy in mice. Int J Nanomedicine 2017; 12:1985-1999. [PMID: 28331320 PMCID: PMC5357082 DOI: 10.2147/ijn.s125521] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Angiotensin (1–7) (Ang-(1–7)) is a bioactive heptapeptide with a short half-life and has beneficial effects in several tissues – among them, skeletal muscle – by preventing muscle atrophy. Dendrimers are promising vehicles for the protection and transport of numerous bioactive molecules. This work explored the use of a neutral, non-cytotoxic hydroxyl-terminated poly(amidoamine) (PAMAM-OH) dendrimer as an Ang-(1–7) carrier. Bioinformatics analysis showed that the Ang-(1–7)-binding capacity of the dendrimer presented a 2:1 molar ratio. Molecular dynamics simulation analysis revealed the capacity of neutral PAMAM-OH to protect Ang-(1–7) and form stable complexes. The peptide coverage ability of the dendrimer was between ~50% and 65%. Furthermore, an electrophoretic mobility shift assay demonstrated that neutral PAMAM-OH effectively bonded peptides. Experimental results showed that the Ang-(1–7)/PAMAM-OH complex, but not Ang-(1–7) alone, had an anti-atrophic effect when administered intraperitoneally, as evaluated by muscle strength, fiber diameter, myofibrillar protein levels, and atrogin-1 and MuRF-1 expressions. The results of the Ang-(1–7)/PAMAM-OH complex being intraperitoneally injected were similar to the results obtained when Ang-(1–7) was systemically administered through mini-osmotic pumps. Together, the results suggest that Ang-(1–7) can be protected for PAMAM-OH when this complex is intraperitoneally injected. Therefore, the Ang-(1–7)/PAMAM-OH complex is an efficient delivery method for Ang-(1–7), since it improves the anti-atrophic activity of this peptide in skeletal muscle.
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Affiliation(s)
- Valeria Márquez-Miranda
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes
| | - Johanna Abrigo
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Juan Carlos Rivera
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Ingrid Araya-Durán
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Javier Aravena
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Felipe Simon
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Nicolás Pacheco
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Fernando Danilo González-Nilo
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes; Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Claudio Cabello-Verrugio
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
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Gundersen K. Muscle memory and a new cellular model for muscle atrophy and hypertrophy. ACTA ACUST UNITED AC 2016; 219:235-42. [PMID: 26792335 DOI: 10.1242/jeb.124495] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Memory is a process in which information is encoded, stored, and retrieved. For vertebrates, the modern view has been that it occurs only in the brain. This review describes a cellular memory in skeletal muscle in which hypertrophy is 'remembered' such that a fibre that has previously been large, but subsequently lost its mass, can regain mass faster than naive fibres. A new cell biological model based on the literature, with the most reliable methods for identifying myonuclei, can explain this phenomenon. According to this model, previously untrained fibres recruit myonuclei from activated satellite cells before hypertrophic growth. Even if subsequently subjected to grave atrophy, the higher number of myonuclei is retained, and the myonuclei seem to be protected against the elevated apoptotic activity observed in atrophying muscle tissue. Fibres that have acquired a higher number of myonuclei grow faster when subjected to overload exercise, thus the nuclei represent a functionally important 'memory' of previous strength. This memory might be very long lasting in humans, as myonuclei are stable for at least 15 years and might even be permanent. However, myonuclei are harder to recruit in the elderly, and if the long-lasting muscle memory also exists in humans, one should consider early strength training as a public health advice. In addition, myonuclei are recruited during steroid use and encode a muscle memory, at least in rodents. Thus, extending the exclusion time for doping offenders should be considered.
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Affiliation(s)
- Kristian Gundersen
- Department of Biosciences, University of Oslo, Blindernveien 31, Oslo N0316, Norway
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High Fat Diet-Induced Skeletal Muscle Wasting Is Decreased by Mesenchymal Stem Cells Administration: Implications on Oxidative Stress, Ubiquitin Proteasome Pathway Activation, and Myonuclear Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:9047821. [PMID: 27579157 PMCID: PMC4992759 DOI: 10.1155/2016/9047821] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/14/2016] [Indexed: 12/20/2022]
Abstract
Obesity can lead to skeletal muscle atrophy, a pathological condition characterized by the loss of strength and muscle mass. A feature of muscle atrophy is a decrease of myofibrillar proteins as a result of ubiquitin proteasome pathway overactivation, as evidenced by increased expression of the muscle-specific ubiquitin ligases atrogin-1 and MuRF-1. Additionally, other mechanisms are related to muscle wasting, including oxidative stress, myonuclear apoptosis, and autophagy. Stem cells are an emerging therapy in the treatment of chronic diseases such as high fat diet-induced obesity. Mesenchymal stem cells (MSCs) are a population of self-renewable and undifferentiated cells present in the bone marrow and other mesenchymal tissues of adult individuals. The present study is the first to analyze the effects of systemic MSC administration on high fat diet-induced skeletal muscle atrophy in the tibialis anterior of mice. Treatment with MSCs reduced losses of muscle strength and mass, decreases of fiber diameter and myosin heavy chain protein levels, and fiber type transitions. Underlying these antiatrophic effects, MSC administration also decreased ubiquitin proteasome pathway activation, oxidative stress, and myonuclear apoptosis. These results are the first to indicate that systemically administered MSCs could prevent muscle wasting associated with high fat diet-induced obesity and diabetes.
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Sigurta' A, Zambelli V, Bellani G. Renin-angiotensin system in ventilator-induced diaphragmatic dysfunction: Potential protective role of Angiotensin (1-7). Med Hypotheses 2016; 94:132-7. [PMID: 27515219 DOI: 10.1016/j.mehy.2016.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 07/12/2016] [Accepted: 07/18/2016] [Indexed: 12/14/2022]
Abstract
Ventilator-induced diaphragmatic dysfunction is a feared complication of mechanical ventilation that adversely affects the outcome of intensive care patients. Human and animal studies demonstrate atrophy and ultrastructural alteration of diaphragmatic muscular fibers attributable to increased oxidative stress, depression of the anabolic pathway regulated by Insulin-like growing factor 1 and increased proteolysis. The renin-angiotensin system, through its main peptide Angiotensin II, plays a major role in skeletal muscle diseases, mainly increasing oxidative stress and inducing insulin resistance, atrophy and fibrosis. Conversely, its counter-regulatory peptide Angiotensin (1-7) has a protective role in these processes. Recent data on rodent models show that renin-angiotensin system is activated after mechanical ventilation and that infusion of Angiotensin II induces diaphragmatic skeletal muscle atrophy. Given: (A) common pathways shared by ventilator-induced diaphragmatic dysfunction and skeletal muscle pathology induced by renin-angiotensin system, (B) evidences of an involvement of renin-angiotensin system in diaphragm atrophy and dysfunction, we hypothesize that renin-angiotensin system plays an important role in ventilator-induced diaphragmatic dysfunction, while Angiotensin (1-7) can have a protective effect on this pathological process. The activation of renin-angiotensin system in ventilator-induced diaphragmatic dysfunction can be demonstrated by quantification of its main components in the diaphragm of ventilated humans or animals. The infusion of Angiotensin (1-7) in an established rodent model of ventilator-induced diaphragmatic dysfunction can be used to test its potential protective role, that can be further confirmed with the infusion of Angiotensin (1-7) antagonists like A-779. Verifying this hypothesis can help in understanding the processes involved in ventilator-induced diaphragmatic dysfunction pathophysiology and open new possibilities for its prevention and treatment.
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Affiliation(s)
- Anna Sigurta'
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
| | - Vanessa Zambelli
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Giacomo Bellani
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; Department of Emergency, San Gerardo Hospital, Monza, Italy
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Al-Maghrebi M, Renno WM. The tACE/Angiotensin (1-7)/Mas Axis Protects Against Testicular Ischemia Reperfusion Injury. Urology 2016; 94:312.e1-8. [PMID: 27125877 DOI: 10.1016/j.urology.2016.04.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/16/2016] [Accepted: 04/14/2016] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To investigate whether exogenous angiotensin (Ang)-(1-7) administration can protect against the damaging consequences of testicular ischemia reperfusion (tIR) injury. MATERIALS AND METHODS Eighteen male Sprague-Dawley rats were divided equally among the following 3 groups: sham, unilateral tIR injury (1 hour of ischemic treatment and 4 hours of reperfusion), and tIR + Ang-(1-7) (0.3 mg/kg). Testicular tissues obtained from the rats were evaluated for the expression of testicular angiotensin-converting enzyme (tACE), Ang-(1-7), and the Ang-(1-7)-specific receptor Mas by immunohistochemistry and enzyme-linked immunosorbent assay. Reduced spermatogenesis, induction of the caspase-8 pathway, and nitric oxide (NO) generation were assessed. The effects of tIR and Ang-(1-7) treatment on the PI3K/Akt antiapoptosis pathway were also investigated. RESULTS Testicular morphological changes and reduced spermatogenesis associated with decreased expression of the tACE/Ang-(1-7)/Mas axis were observed during tIR. These effects were also accompanied by increased activity of caspase-3 and -8, downregulation of the survivin and BAD transcripts, and decreased NO formation. During tIR, PTEN expression was increased, leading to inactivation of the PI3K/Akt pathway. Acute treatment with Ang-(1-7) prior to reperfusion attenuated the tIR-induced damage described above. CONCLUSION Expression of the tACE/Ang-(1-7)/Mas axis was downregulated during tIR. Administration of exogenous Ang-(1-7) prior to reperfusion rescued tACE and Mas expression and protected against germ cell apoptosis and oxidative stress. Increased NO generation and activation of the PI3K/Akt signaling pathway may have partially contributed to these effects. The tACE/Ang-(1-7)/Mas axis likely plays a role in the maintenance of normal testis physiology and spermatogenesis.
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Affiliation(s)
- May Al-Maghrebi
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah, Kuwait.
| | - Waleed M Renno
- Department of Anatomy, Faculty of Medicine, Kuwait University, Jabriyah, Kuwait
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Morales MG, Abrigo J, Acuña MJ, Santos RA, Bader M, Brandan E, Simon F, Olguin H, Cabrera D, Cabello-Verrugio C. Angiotensin-(1-7) attenuates disuse skeletal muscle atrophy in mice via its receptor, Mas. Dis Model Mech 2016; 9:441-9. [PMID: 26851244 PMCID: PMC4852504 DOI: 10.1242/dmm.023390] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 02/02/2016] [Indexed: 12/30/2022] Open
Abstract
Immobilization is a form of disuse characterized by a loss of strength and muscle mass. Among the main features are decreased IGF-1/Akt signalling and increased ubiquitin-proteasome pathway signalling, which induce greater myosin heavy chain degradation. Activation of the classical renin-angiotensin system (RAS) causes deleterious effects in skeletal muscle, including muscle wasting. In contrast, angiotensin-(1-7) [Ang-(1-7)], a peptide of the non-classical RAS, produces beneficial effects in skeletal muscle. However, the role of Ang-(1-7) in skeletal muscle disuse atrophy and independent of classical RAS activation has not been evaluated. Therefore, we assessed the functions of Ang-(1-7) and the Mas receptor in disuse muscle atrophyin vivousing unilateral cast immobilization of the hind limb in male, 12-week-old wild-type (WT) and Mas-knockout (Mas KO) mice for 1 and 14 days. Additionally, we evaluated the participation of IGF-1/IGFR-1/Akt signalling and ubiquitin-proteasome pathway expression on the effects of Ang-(1-7) immobilization-induced muscle atrophy. Our results found that Ang-(1-7) prevented decreased muscle strength and reduced myofiber diameter, myosin heavy chain levels, and the induction of atrogin-1 and MuRF-1 expressions, all of which normally occur during immobilization. Analyses indicated that Ang-(1-7) increases IGF-1/IGFR-1/Akt pathway signalling through IGFR-1 and Akt phosphorylation, and the concomitant activation of two downstream targets of Akt, p70S6K and FoxO3. These anti-atrophic effects of Ang-(1-7) were not observed in Mas KO mice, indicating crucial participation of the Mas receptor. This report is the first to propose anti-atrophic effects of Ang-(1-7) via the Mas receptor and the participation of the IGF-1/IGFR-1/Akt/p70S6K/FoxO3 mechanism in disuse skeletal muscle atrophy.
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Affiliation(s)
- María Gabriela Morales
- Laboratory of Biology and Molecular Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences & Faculty of Medicine, Universidad Andrés Bello, Santiago 8370146, Chile Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
| | - Johanna Abrigo
- Laboratory of Biology and Molecular Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences & Faculty of Medicine, Universidad Andrés Bello, Santiago 8370146, Chile Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
| | - María José Acuña
- Center for Cell Regulation and Pathology (CRCP), Center for Regeneration and Aging (CARE), Laboratory of Cell Differentiation and Pathology, Department of Cell and Molecular Biology, Faculty of Biological Sciences, P. Universidad Católica de Chile, Santiago 8331150, Chile
| | - Robson A Santos
- National Institute in Science and Technology in Nanobiopharmaceutics, Department of Physiology and Biophysics, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil
| | - Michael Bader
- Max-Delbrück-Center for Molecular Medicine, Berlin-Buch 13125, Germany National Institute in Science and Technology in Nanobiopharmaceutics, Belo Horizonte 31270-901, Brazil
| | - Enrique Brandan
- Center for Cell Regulation and Pathology (CRCP), Center for Regeneration and Aging (CARE), Laboratory of Cell Differentiation and Pathology, Department of Cell and Molecular Biology, Faculty of Biological Sciences, P. Universidad Católica de Chile, Santiago 8331150, Chile
| | - Felipe Simon
- Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences & Faculty of Medicine, Universidad Andrés Bello, Santiago 8370146, Chile Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
| | - Hugo Olguin
- Laboratory of Tissue Repair and Adult Stem Cells, Department of Cell and Molecular Biology, Faculty of Biological Sciences, P. Universidad Católica de Chile, Santiago 8331150, Chile
| | - Daniel Cabrera
- Departamento de Ciencias Químicas y Biológicas, Facultad de Salud, Universidad Bernardo O Higgins, Santiago 8370993, Chile Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Biology and Molecular Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences & Faculty of Medicine, Universidad Andrés Bello, Santiago 8370146, Chile Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
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Abrigo J, Rivera JC, Simon F, Cabrera D, Cabello-Verrugio C. Transforming growth factor type beta (TGF-β) requires reactive oxygen species to induce skeletal muscle atrophy. Cell Signal 2016; 28:366-376. [PMID: 26825874 DOI: 10.1016/j.cellsig.2016.01.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 12/28/2015] [Accepted: 01/24/2016] [Indexed: 12/13/2022]
Abstract
Transforming growth factor beta 1 (TGF-β1) is a classical modulator of skeletal muscle and regulates several processes, such as myogenesis, regeneration, and muscle function in skeletal muscle diseases. Skeletal muscle atrophy, characterised by the loss of muscle strength and mass, is one of the pathological conditions regulated by TGF-β. Atrophy also results in increased myosin heavy chain (MHC) degradation and the expression of two muscle-specific E3 ubiquitin ligases, atrogin-1 and MuRF-1. Reactive oxygen species (ROS) are modulators of muscle wasting, and NAD(P)H oxidase (NOX) is one of the main sources of ROS. While it was recently found that TGF-β1 induces atrophy in skeletal muscle, the underlying mechanism is not fully understood. In this study, the role of NOX-derived ROS in skeletal muscle atrophy induced by TGF-β was assessed. TGF-β1 induced an atrophic effect in C2C12 myotubes, as evidenced by decreased myotube diameter and MHC levels, together with increased MuRF-1 levels. Concomitantly, TGF-β increased NOX-induced ROS contents. Interestingly, NOX inhibition through apocynin and the antioxidant treatment with N-acetyl cysteine (NAC) decreased increased ROS levels in myotubes. Additionally, both apocynin and NAC completely prevented the decreased MHC, decreased myotube diameter, and increased MuRF-1 induced by TGF-β. Injection of TGF-β1 into the tibialis anterior muscle induced atrophy, as observed by decreased fibre diameter and MHC levels, together with increased MuRF-1 levels. Likewise, TGF-β increased the ROS contents in the smaller fibres of skeletal muscle. Additionally, the administration of NAC to mice prevented all atrophic effects and the increase in ROS induced by TGF-β in the tibialis anterior. This is the first study to report that TGF-β has an atrophic effect dependent on NOX-induced ROS in skeletal muscle.
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Affiliation(s)
- Johanna Abrigo
- Laboratory of Biology and Molecular Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences, Faculty of Medicine, Universidad Andrés Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Juan Carlos Rivera
- Laboratory of Biology and Molecular Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences, Faculty of Medicine, Universidad Andrés Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile; Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences, Faculty of Medicine, Universidad Andrés Bello, Santiago, Chile
| | - Daniel Cabrera
- Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile; Departamento de Ciencias Químicas y Biológicas, Facultad de Salud, Universidad Bernardo O Higgins, Santiago, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Biology and Molecular Physiopathology, Department of Biological Sciences, Faculty of Biological Sciences, Faculty of Medicine, Universidad Andrés Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
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Sartiani L, Spinelli V, Laurino A, Blescia S, Raimondi L, Cerbai E, Mugelli A. Pharmacological perspectives in sarcopenia: a potential role for renin-angiotensin system blockers? ACTA ACUST UNITED AC 2015; 12:135-8. [PMID: 26604938 DOI: 10.11138/ccmbm/2015.12.2.135] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Sarcopenia represents a major health problem highly prevalent in elderly and age-related chronic diseases. Current pharmacological strategies available to prevent and reverse sarcopenia are largely unsatisfactory thus raising the need to identify novel targets for pharmacological intervention and possibly more effective and safe drugs. This review highlights the current knowledge of the potential benefits of renin-angiotensin system blockade in sarcopenia and discuss the main mechanisms underlying the effects.
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Affiliation(s)
- Laura Sartiani
- Department of Neurosciences, Psychology, Drug Research and Child Health (NeuroFarBa), Center of Molecular Medicine (CIMMBA), University of Florence, Florence, Italy
| | - Valentina Spinelli
- Department of Neurosciences, Psychology, Drug Research and Child Health (NeuroFarBa), Center of Molecular Medicine (CIMMBA), University of Florence, Florence, Italy
| | - Annunziatina Laurino
- Department of Neurosciences, Psychology, Drug Research and Child Health (NeuroFarBa), Center of Molecular Medicine (CIMMBA), University of Florence, Florence, Italy
| | - Sabrina Blescia
- Department of Neurosciences, Psychology, Drug Research and Child Health (NeuroFarBa), Center of Molecular Medicine (CIMMBA), University of Florence, Florence, Italy
| | - Laura Raimondi
- Department of Neurosciences, Psychology, Drug Research and Child Health (NeuroFarBa), Center of Molecular Medicine (CIMMBA), University of Florence, Florence, Italy
| | - Elisabetta Cerbai
- Department of Neurosciences, Psychology, Drug Research and Child Health (NeuroFarBa), Center of Molecular Medicine (CIMMBA), University of Florence, Florence, Italy
| | - Alessandro Mugelli
- Department of Neurosciences, Psychology, Drug Research and Child Health (NeuroFarBa), Center of Molecular Medicine (CIMMBA), University of Florence, Florence, Italy
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Abrigo J, Morales MG, Simon F, Cabrera D, Di Capua G, Cabello-Verrugio C. Apocynin inhibits the upregulation of TGF-β1 expression and ROS production induced by TGF-β in skeletal muscle cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:885-893. [PMID: 26321737 DOI: 10.1016/j.phymed.2015.06.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/18/2015] [Accepted: 06/21/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Pure apocynin, which can be traditionally isolated and purified from several plant species such as Picrorhiza kurroa Royle ex Benth (Scrophulariaceae), acts as an inhibitor of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (NOX) activity inhibiting its production of reactive oxygen species (ROS). Transforming growth factor type beta 1 (TGF-β1) is a growth factor that produces inhibition of myogenesis, diminution of regeneration and induction of atrophy in skeletal muscle. The typical signalling that is activated by TGF-β involves the Smad pathway. PURPOSE To evaluate the effect of TGF-β and the effect of apocynin on TGF-β1 expression in skeletal muscle cells. STUDY DESIGN Controlled laboratory study. In vitro assays were performed with C2C12 cells incubated with TGF-β1 in presence or absence of apocynin (NOX inhibitor), SB525334 (TGF-β-receptor I inhibitor), or chelerythrine (PKC inhibitor). METHODS TGF-β1 and atrogin-1 expression was evaluated by RT-qPCR and/or ELISA; Smad3 phosphorylation by western blot; Smad4 nuclear translocation by indirect immunofluorescence; and ROS levels by DCF probe fluorescent measurements. RESULTS We show that myoblasts respond to TGF-β1 by increasing its own gene expression in a time- and dose-dependent fashion which was abolished by SB525334 and siRNA for Smad2/3. TGF-β1 also induced ROS. Remarkably, apocynin inhibited the TGF-β1 induced ROS as well as the autoinduction of TGF-β1 gene expression. We also show that TGF-β-induced ROS production and TGF-β1 expression require PKC activity as indicated by the inhibition using chelerythrine. CONCLUSION These results strongly suggest that TGF-β induces its own expression through a TGF-β-receptor/Smad-dependent mechanism and apocynin is able to inhibit this process, suggesting that requires NOX-induced ROS in skeletal muscle cells.
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Affiliation(s)
- Johanna Abrigo
- Laboratorio de Biología y Fisiopatología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - María Gabriela Morales
- Laboratorio de Biología y Fisiopatología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Felipe Simon
- Laboratorio de Fisiopatología Integrativa, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Daniel Cabrera
- Departamento de Ciencias Químicas y Biológicas, Universidad Bernardo O´Higgins, Santiago, Chile
| | - Gabriella Di Capua
- Laboratorio de Biología y Fisiopatología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Claudio Cabello-Verrugio
- Laboratorio de Biología y Fisiopatología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas and Facultad de Medicina, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
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Kwon OS, Smuder AJ, Wiggs MP, Hall SE, Sollanek KJ, Morton AB, Talbert EE, Toklu HZ, Tumer N, Powers SK. AT1 receptor blocker losartan protects against mechanical ventilation-induced diaphragmatic dysfunction. J Appl Physiol (1985) 2015; 119:1033-41. [PMID: 26359481 DOI: 10.1152/japplphysiol.00237.2015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 09/04/2015] [Indexed: 11/22/2022] Open
Abstract
Mechanical ventilation is a life-saving intervention for patients in respiratory failure. Unfortunately, prolonged ventilator support results in diaphragmatic atrophy and contractile dysfunction leading to diaphragm weakness, which is predicted to contribute to problems in weaning patients from the ventilator. While it is established that ventilator-induced oxidative stress is required for the development of ventilator-induced diaphragm weakness, the signaling pathway(s) that trigger oxidant production remain unknown. However, recent evidence reveals that increased plasma levels of angiotensin II (ANG II) result in oxidative stress and atrophy in limb skeletal muscles. Using a well-established animal model of mechanical ventilation, we tested the hypothesis that increased circulating levels of ANG II are required for both ventilator-induced diaphragmatic oxidative stress and diaphragm weakness. Cause and effect was determined by administering an angiotensin-converting enzyme inhibitor (enalapril) to prevent ventilator-induced increases in plasma ANG II levels, and the ANG II type 1 receptor antagonist (losartan) was provided to prevent the activation of ANG II type 1 receptors. Enalapril prevented the increase in plasma ANG II levels but did not protect against ventilator-induced diaphragmatic oxidative stress or diaphragm weakness. In contrast, losartan attenuated both ventilator-induced oxidative stress and diaphragm weakness. These findings indicate that circulating ANG II is not essential for the development of ventilator-induced diaphragm weakness but that activation of ANG II type 1 receptors appears to be a requirement for ventilator-induced diaphragm weakness. Importantly, these experiments provide the first evidence that the Food and Drug Administration-approved drug losartan may have clinical benefits to protect against ventilator-induced diaphragm weakness in humans.
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Affiliation(s)
- Oh Sung Kwon
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Ashley J Smuder
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Michael P Wiggs
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Stephanie E Hall
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Kurt J Sollanek
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Aaron B Morton
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Erin E Talbert
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Hale Z Toklu
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, Florida; and Geriatric Research, Education, and Clinical Center, North Florida/South Georgia Veterans Health System, Gainesville, Florida
| | - Nihal Tumer
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, Florida; and Geriatric Research, Education, and Clinical Center, North Florida/South Georgia Veterans Health System, Gainesville, Florida
| | - Scott K Powers
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida;
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Tyrosine 705 Phosphorylation of STAT3 Is Associated with Phenotype Severity in TGFβ1 Transgenic Mice. BIOMED RESEARCH INTERNATIONAL 2015; 2015:843743. [PMID: 26380299 PMCID: PMC4561300 DOI: 10.1155/2015/843743] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/30/2015] [Indexed: 01/15/2023]
Abstract
Transforming growth factor beta 1 (TGFβ1) is a key player in skeletal muscle degenerative and regenerative processes. We previously showed that conditionally overexpressing TGFβ1 in skeletal muscles caused myofiber atrophy and endomysial fibrosis in mice. However, the disease severity varied significantly among individual mice. While 40% of mice developed severe muscle pathology and lost body weight within 2 weeks of TGFβ1 transgene induction in muscles, the rest showed milder or no phenotype. This study aims at determining whether signal transducer and activator of transcription 3 (STAT3) plays a role in the phenotypic difference and whether it can be activated by TGFβ1 directly in muscle cells. Our results show that while total STAT3 was not differentially expressed between the two groups of mice, there was significantly higher pSTAT3 (Tyr705) in the muscles of the mice with severe phenotype. Immunohistochemistry showed that pSTAT3 (Tyr705) was localized in approximately 50% of the nuclei of the muscles. We further showed that TGFβ1 induced Tyr705 phosphorylation of STAT3 in C2C12 cells within 30 minutes of treatment while total STAT3 was not affected. Our findings suggest that TGFβ1 alone can induce Tyr705 phosphorylation of STAT3 in skeletal muscle cells and contribute to disease severity in transgenic TGFβ1 mice.
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Cabello-Verrugio C, Morales MG, Rivera JC, Cabrera D, Simon F. Renin-angiotensin system: an old player with novel functions in skeletal muscle. Med Res Rev 2015; 35:437-63. [PMID: 25764065 DOI: 10.1002/med.21343] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Skeletal muscle is a tissue that shows the most plasticity in the body; it can change in response to physiological and pathological stimuli. Among the diseases that affect skeletal muscle are myopathy-associated fibrosis, insulin resistance, and muscle atrophy. A common factor in these pathologies is the participation of the renin-angiotensin system (RAS). This system can be functionally separated into the classical and nonclassical RAS axis. The main components of the classical RAS pathway are angiotensin-converting enzyme (ACE), angiotensin II (Ang-II), and Ang-II receptors (AT receptors), whereas the nonclassical axis is composed of ACE2, angiotensin 1-7 [Ang (1-7)], and the Mas receptor. Hyperactivity of the classical axis in skeletal muscle has been associated with insulin resistance, atrophy, and fibrosis. In contrast, current evidence supports the action of the nonclassical RAS as a counter-regulator axis of the classical RAS pathway in skeletal muscle. In this review, we describe the mechanisms involved in the pathological effects of the classical RAS, advances in the use of pharmacological molecules to inhibit this axis, and the beneficial effects of stimulation of the nonclassical RAS pathway on insulin resistance, atrophy, and fibrosis in skeletal muscle.
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Affiliation(s)
- Claudio Cabello-Verrugio
- Laboratorio de Biología y Fisiopatología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas & Facultad de Medicina, Universidad Andres Bello, Santiago, Chile
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