1
|
Kim MJ, Lee JM, Min K, Choi YS. Xenogeneic transplantation of mitochondria induces muscle regeneration in an in vivo rat model of dexamethasone-induced atrophy. J Muscle Res Cell Motil 2024; 45:53-68. [PMID: 36802005 DOI: 10.1007/s10974-023-09643-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 01/16/2023] [Indexed: 02/21/2023]
Abstract
Muscle atrophy significantly impairs health and quality of life; however, there is still no cure. Recently, the possibility of regeneration in muscle atrophic cells was suggested through mitochondrial transfer. Therefore, we attempted to prove the efficacy of mitochondrial transplantation in animal models. To this end, we prepared intact mitochondria from umbilical cord-derived mesenchymal stem cells maintaining their membrane potential. To examine the efficacy of mitochondrial transplantation on muscle regeneration, we measured muscle mass, cross-sectional area of muscle fiber, and changes in muscle-specific protein. In addition, changes in the signaling mechanisms related to muscle atrophy were evaluated. As a result, in mitochondrial transplantation, the muscle mass increased by 1.5-fold and the lactate concentration decreased by 2.5-fold at 1 week in dexamethasone-induced atrophic muscles. In addition, a 2.3-fold increase in the expression of desmin protein, a muscle regeneration marker, showed a significant recovery in MT 5 µg group. Importantly, the muscle-specific ubiquitin E3-ligases MAFbx and MuRF-1 were significantly decreased through AMPK-mediated Akt-FoxO signaling pathway by mitochondrial transplantation compared with the saline group, reaching a level similar to that in the control. Based on these results, mitochondrial transplantation may have therapeutic applications in the treatment of atrophic muscle disorders.
Collapse
Affiliation(s)
- Mi Jin Kim
- Department of Biotechnology, CHA University, 13488, Seongnam, Korea
| | - Ji Min Lee
- Department of Biotechnology, CHA University, 13488, Seongnam, Korea
| | - Kyunghoon Min
- Department of Rehabilitation Medicine, CHA Bundang Medical Center, CHA University School of Medicine, 13496, Seongnam, Korea
| | - Yong-Soo Choi
- Department of Biotechnology, CHA University, 13488, Seongnam, Korea.
| |
Collapse
|
2
|
Kang M, Kang M, Yoo J, Lee J, Lee S, Yun B, Song M, Kim JM, Kim HW, Yang J, Kim Y, Oh S. Dietary supplementation with Lacticaseibacillus rhamnosus IDCC3201 alleviates sarcopenia by modulating the gut microbiota and metabolites in dexamethasone-induced models. Food Funct 2024; 15:4936-4953. [PMID: 38602003 DOI: 10.1039/d3fo05420a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Probiotics can exert direct or indirect influences on various aspects of health claims by altering the composition of the gut microbiome and producing bioactive metabolites. The aim of this study was to examine the effect of Lacticaseibacillus rhamnosus IDCC3201 on skeletal muscle atrophy in dexamethasone-induced C2C12 cells and a mouse animal model. Dexamethasone treatment significantly reduced C2C12 muscle cell viability, myotube diameter, and levels of muscle atrophic markers (Atrogin-1 and MuRF-1). These effects were alleviated by conditioned media (CM) and cell extract (EX) derived from L. rhamnosus IDCC3201. In addition, we assessed the in vivo therapeutic effect of L. rhamnosus IDCC3201 in a mouse model of dexamethasone (DEX)-induced muscle atrophy. Supplementation with IDCC3201 resulted in significant enhancements in body composition, particularly in lean mass, muscle strength, and myofibril size, in DEX-induced muscle atrophy mice. In comparison to the DEX-treatment group, the normal and DEX + L. rhamnosus IDCC3201 groups showed a higher transcriptional level of myosin heavy chain family genes (MHC1, MHC1b, MHC2A, 2bB, and 2X) and a reduction in atrophic muscle makers. These analyses revealed that L. rhamnosus IDCC3201 supplementation led to increased production of branched-chain amino acids (BCAAs) and improved the Allobaculum genus within the gut microbiota of muscle atrophy-induced groups. Taken together, our findings suggest that L. rhamnosus IDCC3201 represents a promising dietary supplement with the potential to alleviate sarcopenia by modulating the gut microbiome and metabolites.
Collapse
Affiliation(s)
- Minkyoung Kang
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Minji Kang
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Jiseon Yoo
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Juyeon Lee
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Sujeong Lee
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Bohyun Yun
- Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea
| | - Minho Song
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jun-Mo Kim
- Department of Animal Science and Technology, Chung-Ang University, Anseong 17546, Gyeonggi-do, Republic of Korea
| | - Hyung Wook Kim
- College of Life Sciences, Sejong University, Seoul 05006, Republic of Korea
| | - Jungwoo Yang
- Department of Microbiology, College of Medicine, Dongguk University, Gyeongju, 38066, Republic of Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Sangnam Oh
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| |
Collapse
|
3
|
Murao M, Imano T, Sato Y, Nakajima M. Uphill running preferred over downhill running for recovery from glucocorticoid-induced muscle atrophy. Steroids 2024; 201:109337. [PMID: 37977489 DOI: 10.1016/j.steroids.2023.109337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/01/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023]
Affiliation(s)
- Masanobu Murao
- Research institute of health and welfare, Kibi international university, 8 Iga-machi, Takahashi-city, Okayama 716-8508, Japan; Rehabilitation unit, Kyoto university hospital, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto-city, Kyoto 606-8507, Japan.
| | - Tetsuo Imano
- Research institute of health and welfare, Kibi international university, 8 Iga-machi, Takahashi-city, Okayama 716-8508, Japan; Department of physical therapy, Hiroshima international and medical welfare collage, 14-22 Hijiyamahonmachi, Minami-ku, Hiroshima-city, Hiroshima 732-0816, Japan
| | - Yoshinobu Sato
- Research institute of health and welfare, Kibi international university, 8 Iga-machi, Takahashi-city, Okayama 716-8508, Japan; Studio TAIKA, 28-6 Shinyuno, Kannabe-cho, Fukuyama-city, Hiroshima 720-2122, Japan
| | - Masaaki Nakajima
- Research institute of health and welfare, Kibi international university, 8 Iga-machi, Takahashi-city, Okayama 716-8508, Japan
| |
Collapse
|
4
|
Gartling G, Nakamura R, Sayce L, Zimmerman Z, Slater A, Wilson A, Bing R, Branski RC, Rousseau B. Acute In Vitro and In Vivo Effects of Dexamethasone in the Vocal Folds: a Pilot Study. Laryngoscope 2023; 133:2264-2270. [PMID: 36317801 PMCID: PMC10149570 DOI: 10.1002/lary.30461] [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: 07/19/2022] [Revised: 09/29/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES/HYPOTHESIS Glucocorticoids (GC)s are commonly employed to treat vocal fold (VF) pathologies. However, VF atrophy has been associated with intracordal GC injections. Dexamethasone-induced skeletal muscle atrophy is well-documented in other tissues and believed to be mediated by increased muscle proteolysis via upregulation of Muscle Ring Finger (MuRF)-1 and Atrogin-1. Mechanisms of dexamethasone-mediated VF atrophy have not been described. This pilot study employed in vitro and in vivo models to investigate the effects of dexamethasone on VF epithelium, thyroarytenoid (TA) muscle, and TA-derived myoblasts. We hypothesized that dexamethasone will increase atrophy-associated gene expression in TA muscle and myoblasts and decrease TA muscle fiber size and epithelial thickness. STUDY DESIGN In vitro, pre-clinical. METHODS TA myoblasts were isolated from a female Sprague-Dawley rat and treated with 1 μM dexamethasone for 24-h. In vivo, 15 New Zealand white rabbits were randomly assigned to three treatment groups: (1) bilateral intracordal injection of 40 μL dexamethasone (10 mg/ml; n = 5), (2) volume-matched saline (n = 5), and (3) untreated controls (n = 5). Larynges were harvested 7-days post-injection. Across in vivo and in vitro experimentation, MuRF-1 and Atrogin-1 mRNA expression were measured via RT-qPCR. TA muscle fiber cross-sectional area (CSA) and epithelial thickness were also quantified in vivo. RESULTS Dexamethasone increased MuRF-1 gene expression in TA myoblasts. Dexamethasone injection, however, did not alter atrophy-associated gene expression, TA CSA, or epithelial thickness in vivo. CONCLUSION Dexamethasone increased atrogene expression in TA myoblasts, providing foundational insight into GC induced atrophic gene transcription. Repeated dexamethasone injections may be required to elicit atrophy in vivo. LEVEL OF EVIDENCE NA Laryngoscope, 133:2264-2270, 2023.
Collapse
Affiliation(s)
- Gary Gartling
- Department of Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY
- Department of Communication Science and Disorders, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA
| | - Ryosuke Nakamura
- Department of Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY
| | - Lea Sayce
- Department of Communication Science and Disorders, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA
| | - Zachary Zimmerman
- Department of Communication Science and Disorders, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA
| | - Alysha Slater
- Department of Communication Science and Disorders, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA
| | - Azure Wilson
- Department of Communication Science and Disorders, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA
| | - Renjie Bing
- Department of Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY
| | - Ryan C. Branski
- Department of Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY
- Department of Otolaryngology-Head and Neck Surgery, NYU Grossman School of Medicine, New York, NY
| | - Bernard Rousseau
- Department of Communication Science and Disorders, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA
- Doisy College of Health Sciences, Saint Louis University, St. Louis, MO
| |
Collapse
|
5
|
Park HY, Choi HR, Kim YB, Oh SK, Kim T, Yang HS, In J. Chronic exposure to dexamethasone may not affect sugammadex reversal of rocuronium-induced neuromuscular blockade: an in vivo study on rats. Anesth Pain Med (Seoul) 2023; 18:275-283. [PMID: 37468197 PMCID: PMC10410550 DOI: 10.17085/apm.23021] [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: 02/28/2023] [Revised: 05/14/2023] [Accepted: 05/22/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Chronic glucocorticoid exposure is associated with resistance to nondepolarizing neuromuscular blocking agents. Therefore, we hypothesized that sugammadex-induced recovery would occur more rapidly in subjects exposed to chronic dexamethasone compared to those who were not exposed. This study evaluated the sugammadex-induced recovery profile after neuromuscular blockade (NMB) in rats exposed to chronic dexamethasone. METHODS Sprague-Dawley rats were allocated to three groups (dexamethasone, control, and pair-fed group) for the in vivo study. The mice received daily intraperitoneal dexamethasone injections (500 μg/kg) or 0.9% saline for 15 days. To achieve complete NMB, 3.5 mg/kg rocuronium was administered on the sixteenth day. The recovery time to a train-of-four ratio ≥ 0.9 was measured to evaluate the complete recovery following the sugammadex injection. RESULTS Among the groups, no significant differences were observed in the recovery time to a train-of-four ratio ≥ 0.9 following sugammadex administration (P = 0.531). The time to the second twitch of the train-of-four recovery following rocuronium administration indicated that the duration of NMB was significantly shorter in Group D than that in Groups C and P (P = 0.001). CONCLUSIONS Chronic exposure to dexamethasone did not shorten the recovery time of sugammadex-induced NMB reversal. However, the findings of this study indicated that no adjustments to sugammadex dosage or route of administration is required, even in patients undergoing long-term steroid treatment.
Collapse
Affiliation(s)
| | - Hey Ran Choi
- Department of Anesthesiology and Pain Medicine, Inje University Seoul Paik Hospital, Seoul, Korea
| | - Yong Beom Kim
- Department of Anesthesia and Pain Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Seok Kyeong Oh
- Department of Anesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Taehoon Kim
- Department of Anesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Hong Seuk Yang
- Department of Anesthesiology and Pain Medicine, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
| | - Junyong In
- Department of Anesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
| |
Collapse
|
6
|
The Preventive Effect of Specific Collagen Peptides against Dexamethasone-Induced Muscle Atrophy in Mice. Molecules 2023; 28:molecules28041950. [PMID: 36838938 PMCID: PMC9960993 DOI: 10.3390/molecules28041950] [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: 12/19/2022] [Revised: 02/13/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Muscle atrophy, also known as muscle wasting, is the thinning of muscle mass due to muscle disuse, aging, or diseases such as cancer or neurological problems. Muscle atrophy is closely related to the quality of life and has high morbidity and mortality. However, therapeutic options for muscle atrophy are limited, so studies to develop therapeutic agents for muscle loss are always required. For this study, we investigated how orally administered specific collagen peptides (CP) affect muscle atrophy and elucidated its molecular mechanism using an in vivo model. We treated mice with dexamethasone (DEX) to induce a muscular atrophy phenotype and then administered CP (0.25 and 0.5 g/kg) for four weeks. In a microcomputed tomography analysis, CP (0.5 g/kg) intake significantly increased the volume of calf muscles in mice with DEX-induced muscle atrophy. In addition, the administration of CP (0.25 and 0.5 g/kg) restored the weight of the gluteus maximus and the fiber cross-sectional area (CSA) of the pectoralis major and calf muscles, which were reduced by DEX. CP significantly inhibited the mRNA expression of myostatin and the phosphorylation of Smad2, but it did not affect TGF-β, BDNF, or FNDC5 gene expression. In addition, AKT/mTOR, a central pathway for muscle protein synthesis and related to myostatin signaling, was enhanced in the groups that were administered CP. Finally, CP decreased serum albumin levels and increased TNF-α gene expression. Collectively, our in vivo results demonstrate that CP can alleviate muscle wasting through a multitude of mechanisms. Therefore, we propose CP as a supplement or treatment to prevent muscle atrophy.
Collapse
|
7
|
de Pablos-Rodríguez P, del Pino-Sedeño T, Infante-Ventura D, de Armas-Castellano A, Ramírez Backhaus M, Ferrer JFL, de Pablos-Velasco P, Rueda-Domínguez A, Trujillo-Martín MM. Prognostic Impact of Sarcopenia in Patients with Advanced Prostate Carcinoma: A Systematic Review. J Clin Med 2022; 12:jcm12010057. [PMID: 36614862 PMCID: PMC9821501 DOI: 10.3390/jcm12010057] [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: 10/30/2022] [Revised: 12/01/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer (PCa) is the second most common cancer in men and the fifth leading cause of death from cancer. The possibility of sarcopenia being a prognostic factor in advanced PCa patients has recently become a subject of interest. The aim of the present study was to evaluate the prognostic value of sarcopenia in advanced prostate carcinoma. A systematic review was conducted in Medline, EMBASE, and Web of Science (March, 2021). The quality of studies was assessed using the Quality in Prognosis Studies tool. Meta-analyses for overall, cancer-specific, and progression-free survival were performed. Nine studies (n = 1659) were included. Sarcopenia was borderline associated with a shorter overall survival (HR = 1.20, 95% CI: 1.01, 1.44, P = 0.04, I2 = 43%) but was significantly associated with progression-free survival (HR = 1.61, 95% CI: 1.26, 2.06, P < 0.01; k = 3; n = 588). Available evidence supports sarcopenia as an important prognostic factor of progression-free survival in patients with advanced PCa. However, sarcopenia has a weak association with a shorter overall survival. The evidence on the role of sarcopenia in prostate-cancer-specific survival is insufficient and supports the need for further research. Patient summary: The literature was reviewed to determine whether the loss of muscle mass (sarcopenia) affects the survival in patients with advanced PCa. Patients with advanced PCa and sarcopenia were found to have a shorter progression-free survival (the length of time during and after treatment of a cancer that the patient lives with the disease but it does not get worse), but sarcopenia did not have much influence on the overall survival and cancer-specific survival (the length of time from either the date of diagnosis or the start of treatment to the date of death due to the cancer).
Collapse
Affiliation(s)
- Pedro de Pablos-Rodríguez
- Department of Urology, Instituto Valenciano de Oncología (IVO), 46009 Valencia, Spain
- Doctoral School of University of Las Palmas de Gran Canaria (ULPGC), 35001 Las Palmas de Gran Canaria, Spain
| | - Tasmania del Pino-Sedeño
- Canary Islands Health Research Institute Foundation (FIISC), 38320 Santa Cruz de Tenerife, Spain
- Evaluation Unit of the Canary Islands Health Service (SESCS), 38109 Santa Cruz de Tenerife, Spain
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 38109 Santa Cruz de Tenerife, Spain
| | - Diego Infante-Ventura
- Canary Islands Health Research Institute Foundation (FIISC), 38320 Santa Cruz de Tenerife, Spain
- Evaluation Unit of the Canary Islands Health Service (SESCS), 38109 Santa Cruz de Tenerife, Spain
| | - Aythami de Armas-Castellano
- Canary Islands Health Research Institute Foundation (FIISC), 38320 Santa Cruz de Tenerife, Spain
- Evaluation Unit of the Canary Islands Health Service (SESCS), 38109 Santa Cruz de Tenerife, Spain
| | | | - Juan Francisco Loro Ferrer
- Department of Clinical Sciences, University of Las Palmas de Gran Canaria (ULPGC), 35001 Las Palmas de Gran Canaria, Spain
| | - Pedro de Pablos-Velasco
- Department of Endocrinology and Nutrition, University Hospital of Gran Canaria Doctor Negrín, 35012 Las Palmas de Gran Canaria, Spain
- Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria (ULPGC), 35001 Las Palmas de Gran Canaria, Spain
- Correspondence: ; Tel.: +34-928-450-491
| | - Antonio Rueda-Domínguez
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 38109 Santa Cruz de Tenerife, Spain
- Medical Oncology Intercenter Unit, Regional and Virgen de la Victoria University Hospitals, IBIMA, 29590 Malaga, Spain
- Research Network on Health Services in Chronic Diseases (REDISSEC), Carlos III Health Institute, 28029 Madrid, Spain
| | - María M. Trujillo-Martín
- Canary Islands Health Research Institute Foundation (FIISC), 38320 Santa Cruz de Tenerife, Spain
- Evaluation Unit of the Canary Islands Health Service (SESCS), 38109 Santa Cruz de Tenerife, Spain
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 38109 Santa Cruz de Tenerife, Spain
- Research Network on Health Services in Chronic Diseases (REDISSEC), Carlos III Health Institute, 28029 Madrid, Spain
| |
Collapse
|
8
|
Adel M, Elsayed HRH, El-Nablaway M, Hamed S, Eladl A, Fouad S, El Nashar EM, Al-Otaibi ML, Rabei MR. Targeting Hydrogen Sulfide Modulates Dexamethasone-Induced Muscle Atrophy and Microvascular Rarefaction, through Inhibition of NOX4 and Induction of MGF, M2 Macrophages and Endothelial Progenitors. Cells 2022; 11:cells11162500. [PMID: 36010575 PMCID: PMC9406793 DOI: 10.3390/cells11162500] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Long-term use of Glucocorticoids produces skeletal muscle atrophy and microvascular rarefaction. Hydrogen sulfide (H2S) has a potential role in skeletal muscle regeneration. However, the mechanisms still need to be elucidated. This is the first study to explore the effect of Sodium hydrosulfide (NaHS) H2S donor, against Dexamethasone (Dex)-induced soleus muscle atrophy and microvascular rarefaction and on muscle endothelial progenitors and M2 macrophages. Rats received either; saline, Dex (0.6 mg/Kg/day), Dex + NaHS (5 mg/Kg/day), or Dex + Aminooxyacetic acid (AOAA), a blocker of H2S (10 mg/Kg/day) for two weeks. The soleus muscle was examined for contractile properties. mRNA expression for Myostatin, Mechano-growth factor (MGF) and NADPH oxidase (NOX4), HE staining, and immunohistochemical staining for caspase-3, CD34 (Endothelial progenitor marker), vascular endothelial growth factor (VEGF), CD31 (endothelial marker), and CD163 (M2 macrophage marker) was performed. NaHS could improve the contractile properties and decrease oxidative stress, muscle atrophy, and the expression of NOX4, caspase-3, Myostatin, VEGF, and CD31 and could increase the capillary density and expression of MGF with a significant increase in expression of CD34 and CD163 as compared to Dex group. However, AOAA worsened the studied parameters. Therefore, H2S can be a promising target to attenuate muscle atrophy and microvascular rarefaction.
Collapse
Affiliation(s)
- Mohamed Adel
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Hassan Reda Hassan Elsayed
- Department of Anatomy and Embryology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
- Department of Anatomy, Faculty of Physical therapy, Horus University, New Damietta 34517, Egypt
- Correspondence: ; Tel.: +20-122-9310-701
| | - Mohammad El-Nablaway
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
- Department of Medical Biochemistry, College of Medicine, Almaarefa University, Riyad 71666, Saudi Arabia
| | - Shereen Hamed
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Amira Eladl
- Department of Pharmacology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Samah Fouad
- Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Eman Mohamad El Nashar
- Department of Anatomy, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
- Department of Histology and Cell Biology, Faculty of Medicine, Benha University, Benha 13511, Egypt
| | - Mohammed Lafi Al-Otaibi
- Department of Orthopedics, College Medicine, King Khalid University, Abha 61421, Saudi Arabia
| | - Mohammed R. Rabei
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
- Department of Physiology, Faculty of Medicine, King Salman International University, El Tor 46511, Egypt
| |
Collapse
|
9
|
Yang HW, Oh S, Chung DM, Seo M, Park SJ, Jeon YJ, Byun K, Ryu B. Ishophloroglucin A, Isolated from Ishige okamurae, Alleviates Dexamethasone-Induced Muscle Atrophy through Muscle Protein Metabolism In Vivo. Mar Drugs 2022; 20:280. [PMID: 35621931 PMCID: PMC9147101 DOI: 10.3390/md20050280] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/18/2022] [Accepted: 04/18/2022] [Indexed: 02/05/2023] Open
Abstract
The in vitro capacity of Ishige okamurae extract (IO) to improve impaired muscle function has been previously examined. However, the mechanism underlying IO-mediated muscle protein metabolism and the role of its component, Ishophloroglucin A (IPA), in mice with dexamethasone (Dexa)-induced muscle atrophy remains unknown. In the present study, we evaluated the effect of IO and IPA supplementation on Dexa-induced muscle atrophy by assessing muscle protein metabolism in gastrocnemius and soleus muscles of mice. IO and IPA supplementation improved the Dexa-induced decrease in muscle weight and width, leading to enhanced grip strength. In addition, IO and IPA supplementation regulated impaired protein synthesis (PI3K and Akt) or degradation (muscle-specific ubiquitin ligase muscle RING finger and atrogin-1) by modulating mRNA levels in gastrocnemius and soleus muscles. Additionally, IO and IPA upregulated mRNA levels associated with muscle growth activation (transient receptor potential vanilloid type 4 and adenosine A1 receptor) or inhibition (myostatin and sirtuin 1) in gastrocnemius and soleus muscle tissues of Dexa-induced mice. Collectively, these results suggest that IO and IO-derived IPA can regulate muscle growth through muscle protein metabolism in Dexa-induced muscle atrophy.
Collapse
Affiliation(s)
- Hye-Won Yang
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju 63243, Korea; (H.-W.Y.); (Y.-J.J.)
| | - Seyeon Oh
- Functional Cellular Networks Laboratory, Department of Medicine, Graduate School, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea;
| | - Dong-Min Chung
- Shinwoo Co., Ltd., Jinju 52839, Korea; (D.-M.C.); (M.S.); (S.J.P.)
| | - Minyoung Seo
- Shinwoo Co., Ltd., Jinju 52839, Korea; (D.-M.C.); (M.S.); (S.J.P.)
| | - Shin Jae Park
- Shinwoo Co., Ltd., Jinju 52839, Korea; (D.-M.C.); (M.S.); (S.J.P.)
| | - You-Jin Jeon
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju 63243, Korea; (H.-W.Y.); (Y.-J.J.)
- Marine Science Institute, Jeju National University, Jeju 63333, Korea
| | - Kyunghee Byun
- Functional Cellular Networks Laboratory, Department of Medicine, Graduate School, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea;
- Department of Anatomy & Cell Biology, College of Medicine, Gachon University, Incheon 21936, Korea
| | - BoMi Ryu
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju 63243, Korea; (H.-W.Y.); (Y.-J.J.)
| |
Collapse
|
10
|
Chang YB, Ahn Y, Suh HJ, Jo K. Yeast hydrolysate ameliorates dexamethasone-induced muscle atrophy by suppressing MuRF-1 expression in C2C12 cells and C57BL/6 mice. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.104985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
11
|
Nutrients against Glucocorticoid-Induced Muscle Atrophy. Foods 2022; 11:foods11050687. [PMID: 35267320 PMCID: PMC8909279 DOI: 10.3390/foods11050687] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/15/2022] [Accepted: 02/23/2022] [Indexed: 11/29/2022] Open
Abstract
Glucocorticoid excess is a critical factor contributing to muscle atrophy. Both endogenous and exogenous glucocorticoids negatively affect the preservation of muscle mass and function. To date, the most effective intervention to prevent muscle atrophy is to apply a mechanical load in the form of resistance exercise. However, glucocorticoid-induced skeletal muscle atrophy easily causes fatigue in daily physical activities, such as climbing stairs and walking at a brisk pace, and reduces body movements to cause a decreased ability to perform physical activity. Therefore, providing adequate nutrients in these circumstances is a key factor in limiting muscle wasting and improving muscle mass recovery. The present review will provide an up-to-date review of the effects of various nutrients, including amino acids such as branched-chain amino acids (BCAAs) and β–hydroxy β–methylbutyrate (HMB), fatty acids such as omega-3, and vitamins and their derivates on the prevention and improvement of glucocorticoid-induced muscle atrophy.
Collapse
|
12
|
Kimura N, Kawahara T, Uemura Y, Atsumi T, Sumida T, Mimura T, Kawaguchi Y, Amano H, Iwasaki Y, Kaneko Y, Matsui T, Muro Y, Imura Y, Kanda T, Tanaka Y, Kawakami A, Jinnin M, Ishii T, Hiromura K, Miwa Y, Nakajima H, Kuwana M, Nishioka Y, Morinobu A, Kameda H, Kohsaka H. Branched chain amino acids in the treatment of polymyositis and dermatomyositis: a phase II/III, multi-center, randomized controlled trial. Rheumatology (Oxford) 2022; 61:4445-4454. [PMID: 35179548 DOI: 10.1093/rheumatology/keac101] [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: 11/25/2021] [Revised: 01/23/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES To assess the efficacy and safety of branched chain amino acids (BCAAs) in the treatment of PM/DM prior to official approval of their use in Japan. METHODS Treatment naïve adults with PM/DM were enrolled in a randomized, double-blind trial to receive either TK-98 (drug name of BCAAs) or placebo in addition to conventional treatment. After 12 weeks, patients with an average manual muscle test (MMT) score <9.5 were enrolled in an open label extension study for a further 12 weeks. The primary end point was the change of the MMT score at 12 weeks. The secondary end points were the clinical response and the change of functional index (FI). RESULTS Forty-seven patients were randomized either to the TK-98 (n = 24) or placebo (n = 23) groups. The changes of MMT scores at 12 weeks were 0.70±0.19 (mean±SEM) and 0.69±0.18, respectively (P = 0.98). Thirteen patients from the TK-98 group and 12 from the placebo group were enrolled in the extension study. The MMT scores in both groups improved similarly. The increase of the FI scores of the shoulder flexion at 12 weeks was significantly greater in the TK-98 group (27.9±5.67 vs. 12.8±5.67 for the right shoulder flexion, and 27.0±5.44 vs. 13.4±5.95 for the left shoulder [P < 0.05]). Frequencies of adverse events upto 12 weeks were similar. CONCLUSION BCAAs showed no effect on the improvement of the muscle strength evaluated by MMT and the clinical response. However, they were partly effective for improving dynamic repetitive muscle functions. TRIAL REGISTRATION UMIN-CTR Clinical Trial, https://center6.umin.ac.jp/, UMIN000016233.
Collapse
Affiliation(s)
- Naoki Kimura
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Lifetime Clinical Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takuya Kawahara
- Clinical Research Promotion Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Yukari Uemura
- Clinical Research Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tatsuya Atsumi
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine, Hokkaido University, Hokkaido, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Toshihide Mimura
- Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan
| | - Yasushi Kawaguchi
- Department of Rheumatology, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Hirofumi Amano
- Department of Rheumatology and Internal Medicine, Juntendo University School of Medicine,Tokyo, Japan
| | - Yukiko Iwasaki
- Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Japan.,Department of Palliative Medicine, Faculty of Medicine, Saitama Medical University, Saitama, Japan
| | - Yuko Kaneko
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Toshihiro Matsui
- Department of Rheumatology, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - Yoshinao Muro
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshitaka Imura
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Clinical Immunology and Rheumatology, Tazuke-Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Takashi Kanda
- Department of Neurology and Clinical Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Atsushi Kawakami
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences,Nagasaki, Japan
| | - Masatoshi Jinnin
- Department of Dermatology, Wakayama Medical University Graduate School of Medicine, Wakayama, Japan
| | - Tomonori Ishii
- Clinical Research, Innovation and Education Center, Tohoku University Hospital, Sendai, Japan
| | - Keiju Hiromura
- Department of Nephrology and Rheumatology, Gunma University Graduate School of Medicine,Maebashi, Japan
| | - Yusuke Miwa
- Department of Medicine, Division of Rheumatology, Showa University School of Medicine, Tokyo, Japan
| | - Hiroshi Nakajima
- Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan
| | - Masataka Kuwana
- Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, Tokyo, Japan
| | - Yasuhiko Nishioka
- Department of Respiratory Medicine and Rheumatology, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Akio Morinobu
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Section of Rheumatology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hideto Kameda
- Department of Internal Medicine, Division of Rheumatology, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Hitoshi Kohsaka
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Rheumatology Center, Chiba-Nishi General Hospital, Matsudo, Japan
| |
Collapse
|
13
|
Zhang YY, Gu LJ, Zhu N, Wang L, Cai MC, Jia JS, Rong S, Yuan WJ. Calpain 6 inhibits autophagy in inflammatory environments: A preliminary study on myoblasts and a chronic kidney disease rat model. Int J Mol Med 2021; 48:194. [PMID: 34435644 PMCID: PMC8416137 DOI: 10.3892/ijmm.2021.5027] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/30/2021] [Indexed: 02/06/2023] Open
Abstract
A non-classical calpain, calpain 6 (CAPN6), can inhibit skeletal muscle differentiation and regeneration. In the present study, the role of CAPN6 in the regulation of the autophagy of myoblasts in vitro was investigated. The underlying molecular events and the CAPN6 level in atrophic skeletal muscle in a rat model of chronic kidney disease (CKD) were also investigated. In vitro, CAPN6 was overexpressed, or knocked down, in rat L6 myoblasts to assess autophagy and related gene expression and co-localization. Subsequently, myoblasts were treated with a mixture of cytokines, and relative gene expression and autophagy were assessed. A rat model of CKD for muscle atrophy was established, and blood chemical level and the expression of CAPN6 in muscle were assessed. The data revealed that the knockdown of CAPN6 in rat myoblasts resulted in increased microtubule-associated protein 1 light chain 3 (LC3) levels, while its overexpression decreased LC3 levels and impaired autophagy. Additionally, it was observed that the co-localization of mammalian target of rapamycin (mTOR) and lysosomal-associated membrane protein 1 (LAMP1), a lysosomal marker, proteins was increased. In addition, mTOR, Raptor and α-tubulin (a marker of microtubules) increased in the CAPN6 overexpression group. However, inflammatory cytokines, such as interleukin (IL)-6, tumor necrosis factor (TNF)-α, interferon (INF)-γ and lipopolysaccharides upregulated CAPN6 expression, inhibited L6 myoblast autophagy and stabilized mTOR activity. Furthermore, the animal model successfully mimicked human disease as regards an increase in body weight, and a reduction in muscle mass, cross-sectional area and blood biomarker concentrations; a slight increase in CAPN6 mRNA and protein levels in muscles was observed. Finally, the data of the present study suggested that CAPN6 reduced autophagy via the maintenance of mTOR signaling, which may play a role in CKD-related muscle atrophy. However, future studies are required to determine whether CAPN6 may be used as an intervention target for CKD-related skeletal muscle atrophy.
Collapse
Affiliation(s)
- Yue Yue Zhang
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Li Jie Gu
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Nan Zhu
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Ling Wang
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Min Chao Cai
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Jie Shuang Jia
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Shu Rong
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Wei Jie Yuan
- Division of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| |
Collapse
|
14
|
Sawa R, Wake I, Yamamoto Y, Okimura Y. The involvement of Sestrin2 in the effect of IGF-I and leucine on mTROC1 activity in C2C12 and L6 myocytes. Growth Horm IGF Res 2021; 59:101406. [PMID: 34126555 DOI: 10.1016/j.ghir.2021.101406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/25/2021] [Accepted: 05/13/2021] [Indexed: 01/07/2023]
Abstract
OBJECTIVE IGF-I and branched-chain amino acids have been reported to promote muscle hypertrophy via the stimulation of protein synthesis. Sestrin2, the function of which is regulated by leucine, has been reported to attenuate the activity of the mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) that stimulates protein synthesis. The objective of this study was to examine whether IGF-I modulates Sestrin2 abundance and to clarify the involvement of Sestrin2 in the effect of IGF-I and leucine on mTROC1. DESIGN C2C12 and L6 myocytes were stimulated by leucine (1 mM) with or without pretreatment with IGF-I (100 ng/mL). Phosphorylation of p70 S6 kinase (S6K) and 4E-binding protein 1 (4E-BP1), both of which are targets of the mTORC1, was examined by western blotting. Effects of Sestrin2 small interfering RNA (siRNA) on the actions of leucine and IGF-I were examined. Sestrin2 mRNA and protein levels were also determined after Sestrin2 siRNA. RESULTS Leucine increased the phosphorylation of S6K and 4E-BP1 in a dose-dependent manner. Pretreatment with IGF-I for 5 h further increased the stimulatory effect of leucine on the phosphorylation of S6K and 4E-BP1 in C2C12 cells. IGF-I increased Sestrin2 protein and messenger RNA levels. Sestrin2 siRNA increased or tended to increase basal phosphorylation of 4E-BP1 and decreased the leucine-induced phosphorylation in C2C12 and L6 cells, in particular after IGF-I treatment, suggesting the involvement of Sestrin2 in the action of leucine and IGF-I. The net increase in leucine-induced 4E-BP1 phosphorylation appeared to be attenuated by Sestrin2 siRNA. Likewise, Sestrin2 siRNA attenuated leucine-induced S6K phosphorylation in L6 cells. However, Sestrin2 siRNA did not influence leucine-induced S6K phosphorylation in C2C12 cells. CONCLUSIONS IGF-I and leucine cooperatively increased mTORC1 activity in C2C12 cells. IGF-I increased Sestrin2. Sestrin2 siRNA experiments showed that Sestrin2 was involved in the effect of leucine and IGF-I on mTORC1 activity in C2C12 and L6 cells, and suggested that increased Sestrin2 by IGF-I pretreatment might play a role in enhancing the effect of leucine on mTORC1.
Collapse
Affiliation(s)
- Ran Sawa
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Ikumi Wake
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Yu Yamamoto
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Yasuhiko Okimura
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan.
| |
Collapse
|
15
|
Banse HE, Whitehead AE, McFarlane D, Chelikani PK. Markers of muscle atrophy and impact of treatment with pergolide in horses with pituitary pars intermedia dysfunction and muscle atrophy. Domest Anim Endocrinol 2021; 76:106620. [PMID: 33740552 DOI: 10.1016/j.domaniend.2021.106620] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 12/16/2022]
Abstract
Pituitary pars intermedia dysfunction (PPID) is a common endocrine disorder of aged horses, with muscle atrophy as one of the clinical signs. We sought to compare muscle mass and regulation of skeletal muscle proteolysis between horses with PPID and muscle atrophy to older horses without PPID, and to assess the impact of treatment with pergolide (dopaminergic agonist) on PPID horses. We hypothesized that PPID-associated muscle atrophy is a result of increased proteolysis, and that markers of muscle atrophy and proteolysis would improve over time with pergolide treatment. Markers of muscle atrophy, adiposity, insulin regulation, skeletal muscle composition, and proteolysis (muscle atrophy F- box/atrogin 1 [MAFbx1], muscle RING finger 1 [MuRF1], Bcl2/adenovirus EIV 19kD interacting protein 3 [Bnip3], and microtubule-associated light chain 3 [LC3]) were compared between PPID and control horses. PPID horses were treated for 12 weeks with either pergolide or placebo. Dose of pergolide was adjusted based upon monthly measurement of adrenocorticotropin, and markers of muscle atrophy, adiposity, insulin regulation, skeletal muscle composition, and proteolysis were compared after 12 weeks of treatment. Horses with PPID exhibited increased transcript abundance of MuRF1 (P= 0.04) compared to control. However, no difference was observed in transcript abundance of markers of proteolysis with treatment (P ≥ 0.25). Pergolide treated horses lost weight (P = 0.02) and improved fasting insulin (P = 0.02), while placebo treated horses gained weight and rump fat thickness (P = 0.02). Findings from this study suggest that treatment with pergolide may promote weight loss and improve insulin regulation in horses with PPID, but does not impact muscle mass or markers of muscle proteolysis.
Collapse
Affiliation(s)
- H E Banse
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - A E Whitehead
- Department of Veterinary and Clinical Diagnostic Sciences, University of Calgary, Calgary, AB, T2N 4Z6, Canada
| | - D McFarlane
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - P K Chelikani
- School of Veterinary Medicine, Texas Tech University, Amarillo, TX 79106, USA
| |
Collapse
|
16
|
Kim S, Kim K, Park J, Jun W. Curcuma longa L. Water Extract Improves Dexamethasone-Induced Sarcopenia by Modulating the Muscle-Related Gene and Oxidative Stress in Mice. Antioxidants (Basel) 2021; 10:1000. [PMID: 34201533 PMCID: PMC8300838 DOI: 10.3390/antiox10071000] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 12/25/2022] Open
Abstract
Dexamethasone (DEX) promotes proteolysis, which causes muscle atrophy. Muscle atrophy is connected to sarcopenia. We evaluated the effect of Curcuma longa L. water extract (CLW) on DEX-induced muscle atrophy. ICR mice were divided into three groups (eight mice per group) to investigate the capability of CLW in inhibiting muscle atrophy. The control group (Ex-CON) was administered distilled water (DW) by gavage and subjected to exercise; the muscle atrophy group (Ex-DEX) was administered DW by gavage, an injection of DEX (1 mg/kg body weight/day) intraperitoneally (IP), and subjected to exercise; and the treatment group (Ex-CLW) was administered CLW (1 g/kg body weight/day) by gavage, DEX IP injection, and subjected to exercise. Following the injection of DEX, the expression levels of myostatin, MuRF-1, and Atrogin-1 were increased. However, these expression levels were decreased in the Ex-CLW group, thereby leading to the conclusion that CLW inhibits muscle atrophy. ROS (that was overproduced by DEX) decreased antioxidant enzyme activity and increased malondialdehyde (MDA) levels, which led to muscle atrophy. When CLW was ingested, the antioxidant enzyme activities increased while the MDA levels decreased. These findings suggest that CLW could serve as a natural product for the prevention of muscle atrophy by modulating muscle atrophy-related genes and increasing antioxidant potential.
Collapse
Affiliation(s)
- Shintae Kim
- Division of Food and Nutrition, Chonnam National University, Gwangju 61187, Korea;
| | - Kyungmi Kim
- Department of Biofood Analysis, Korea Bio Polytechnic, Ganggyung 32946, Korea;
| | - Jeongjin Park
- Division of Food and Nutrition, Chonnam National University, Gwangju 61187, Korea;
- Research Institute for Human Ecology, Chonnam National University, Gwangju 61187, Korea
| | - Woojin Jun
- Division of Food and Nutrition, Chonnam National University, Gwangju 61187, Korea;
- Research Institute for Human Ecology, Chonnam National University, Gwangju 61187, Korea
| |
Collapse
|
17
|
Brearley MC, Loczenski-Brown DM, Loughna PT, Parr T, Brameld JM. Response of the porcine MYH4-promoter and MYH4-expressing myotubes to known anabolic and catabolic agents in vitro. Biochem Biophys Rep 2021; 25:100924. [PMID: 33614996 PMCID: PMC7880916 DOI: 10.1016/j.bbrep.2021.100924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 01/17/2021] [Accepted: 01/17/2021] [Indexed: 11/18/2022] Open
Abstract
Myosin heavy chain-IIB (MyHC-IIB; encoded by MYH4 or Myh4) expression is often associated with muscle hypertrophic growth. Unlike other large mammals, domestic pig breeds express MyHC-IIB at both the mRNA and protein level. Aim To utilise a fluorescence-based promoter-reporter system to test the influence of anabolic and catabolic agents on increasing porcine MYH4-promoter activity and determine whether cell hypertrophy was subsequently induced. Methods C2C12 myoblasts were co-transfected with porcine MYH4-promoter-driven ZsGreen and CMV-driven DsRed expression plasmids. At the onset of differentiation, treatments (dibutyryl cyclic-AMP (dbcAMP), Des(1–3) Insulin-Like Growth Factor-1 (IGF-I), triiodo-l-thyronine (T3) and dexamethasone (Dex)) or appropriate vehicle controls were added and cells maintained for up to four days. At day 4 of differentiation, measurements were collected for total fluorescence and average myotube diameter, as indicators of MYH4-promoter activity and cell hypertrophy respectively. Results Porcine MYH4-promoter activity increased during C2C12 myogenic differentiation, with a marked increase between days 3 and 4. MYH4-promoter activity was further increased following four days of dbcAMP treatment and average myotube diameter was significantly increased by dbcAMP. Porcine MYH4-promoter activity also tended to be increased by T3 treatment, but there were no effects of Des(1–3) IGF-I or Dex treatment, whereas average myotube diameter was increased by Des(1–3) IGF-I, but not T3 or Dex. Conclusion Porcine MYH4-promoter activity responded to dbcAMP, Des(1–3) IGF-I and T3 treatment in vitro as observed previously in reported in vivo studies. However, we report that increased MYH4-promoter activity was not always associated with muscle cell hypertrophy. The fluorescence-based reporter system offers a useful tool to study muscle cell hypertrophic growth. In vitro porcine MYH4-promoter-reporter system to test anabolic & catabolic agents. Changes in porcine MYH4-promoter activity & myotube diameter measured in tandem. MYH4-promoter activity responded to dbcAMP, Des(1–3) IGF-I and T3 as seen in vivo. Increased MYH4-promoter activity was not always associated with cell hypertrophy.
Collapse
Affiliation(s)
- Madelaine C Brearley
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - David M Loczenski-Brown
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Paul T Loughna
- School of Veterinary Medicine & Science, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Tim Parr
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - John M Brameld
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| |
Collapse
|
18
|
Soluble Whey Protein Hydrolysate Ameliorates Muscle Atrophy Induced by Immobilization via Regulating the PI3K/Akt Pathway in C57BL/6 Mice. Nutrients 2020; 12:nu12113362. [PMID: 33139592 PMCID: PMC7692342 DOI: 10.3390/nu12113362] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022] Open
Abstract
Sarcopenia, a loss of skeletal muscle mass and function, is prevalent in older people and associated with functional decline and mortality. Protein supplementation is necessary to maintain skeletal muscle mass and whey protein hydrolysates have the best nutrient quality among food proteins. In the first study, C57BL/6 mice were subjected to immobilization for 1 week to induce muscle atrophy. Then, mice were administered with four different whey protein hydrolysates for 2 weeks with continuous immobilization. Among them, soluble whey protein hydrolysate (WP-S) had the greatest increase in grip strength, muscle weight, and cross-sectional area of muscle fiber than other whey protein hydrolysates. To investigate the molecular mechanism, we conducted another experiment with the same experimental design. WP-S significantly promoted the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway and inhibited the PI3K/Akt/forkhead box O (FoxO) pathway. In addition, it increased myosin heavy chain (MyHC) expression in both the soleus and quadriceps and changed MyHC isoform expressions. In conclusion, WP-S attenuated muscle atrophy induced by immobilization by enhancing the net protein content regulating muscle protein synthesis and degradation. Thus, it is a necessary and probable candidate for developing functional food to prevent sarcopenia.
Collapse
|
19
|
Barekatain R, Nattrass G, Tilbrook AJ, Chousalkar K, Gilani S. Reduced protein diet and amino acid concentration alter intestinal barrier function and performance of broiler chickens with or without synthetic glucocorticoid. Poult Sci 2019; 98:3662-3675. [DOI: 10.3382/ps/pey563] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 11/23/2018] [Indexed: 12/13/2022] Open
|
20
|
Oh SK, Lim BG, Park S, Yang HS, In J, Kim YB, Choi HR, Lee IO. Effect of protracted dexamethasone exposure and its withdrawal on rocuronium-induced neuromuscular blockade and sugammadex reversal: an ex vivo rat study. Sci Rep 2019; 9:11268. [PMID: 31375743 PMCID: PMC6677897 DOI: 10.1038/s41598-019-47784-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 07/23/2019] [Indexed: 02/07/2023] Open
Abstract
Studies have reported that protracted dexamethasone treatment induces resistance to nondepolarizing neuromuscular blocking agents (NMBAs) and the association with nicotinic acetylcholine receptors in the diaphragm of rats. Here, we investigated the effect of protracted dexamethasone administration on the sensitivity to rocuronium and the recovery profile when reversed by sugammadex; additionally, we observed the recovery period of pharmacodynamic change after withdrawal. Sprague-Dawley rats received daily intraperitoneal injections of dexamethasone or saline for 14 days. On days 1, 3, and 7 after the last dexamethasone treatment (Dexa1, Dexa3, and Dexa7, respectively) or 1 day after saline (control group), the phrenic nerve-hemidiaphragm preparation was dissected for assay. The dose-response curve of rocuronium in Dexa1 was shifted to the right compared to controls, but curves in Dexa3 and Dexa7 were not significantly different. Groups were not significantly different in attaining the train-of-four ratio ≥ 0.9, but the recovery index in Dexa7 was shorter than that in control and Dexa1. Recovery profiles (period of sugammadex reversal) were not correlated with resistance properties but rather with total administered drugs (binding capacity of NMBAs and sugammadex). Protracted dexamethasone exposure induced resistance to rocuronium but seemed to have no effect on sugammadex reversal in the rat diaphragm.
Collapse
Affiliation(s)
- Seok Kyeong Oh
- Department of Anaesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Byung Gun Lim
- Department of Anaesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Sungsoo Park
- Department of Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Hong Seuk Yang
- Department of Anaesthesiology and Pain Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Junyong In
- Department of Anaesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Yong Beom Kim
- Department of Anaesthesiology and Pain Medicine, Gachon University Gil Hospital, Incheon, Republic of Korea
| | - Hey-Ran Choi
- Department of Anaesthesiology and Pain Medicine, Inje University Seoul Paik Hospital, Seoul, Republic of Korea
| | - Il Ok Lee
- Department of Anaesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
| |
Collapse
|
21
|
GCN2 deficiency protects mice from denervation-induced skeletal muscle atrophy via inhibiting FoxO3a nuclear translocation. Protein Cell 2019; 9:966-970. [PMID: 29349768 PMCID: PMC6208481 DOI: 10.1007/s13238-018-0504-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
22
|
Abstract
Skeletal muscle atrophy is a common side effect of most human diseases. Muscle loss is not only detrimental for the quality of life but it also dramatically impairs physiological processes of the organism and decreases the efficiency of medical treatments. While hypothesized for years, the existence of an atrophying programme common to all pathologies is still incompletely solved despite the discovery of several actors and key regulators of muscle atrophy. More than a decade ago, the discovery of a set of genes, whose expression at the mRNA levels were similarly altered in different catabolic situations, opened the way of a new concept: the presence of atrogenes, i.e. atrophy-related genes. Importantly, the atrogenes are referred as such on the basis of their mRNA content in atrophying muscles, the regulation at the protein level being sometimes more complicate to elucidate. It should be noticed that the atrogenes are markers of atrophy and that their implication as active inducers of atrophy is still an open question for most of them. While the atrogene family has grown over the years, it has mostly been incremented based on data coming from rodent models. Whether the rodent atrogenes are valid for humans still remain to be established. An "atrogene" was originally defined as a gene systematically up- or down-regulated in several catabolic situations. Even if recent works often restrict this notion to the up-regulation of a limited number of proteolytic enzymes, it is important to keep in mind the big picture view. In this review, we provide an update of the validated and potential rodent atrogenes and the metabolic pathways they belong, and based on recent work, their relevance in human physio-pathological situations. We also propose a more precise definition of the atrogenes that integrates rapid recovery when catabolic stimuli are stopped or replaced by anabolic ones.
Collapse
Affiliation(s)
- Daniel Taillandier
- Université Clermont Auvergne, INRA, UNH, Unité de Nutrition Humaine, CRNH Auvergne, F-63000, Clermont-Ferrand, France.
| | - Cécile Polge
- Université Clermont Auvergne, INRA, UNH, Unité de Nutrition Humaine, CRNH Auvergne, F-63000, Clermont-Ferrand, France
| |
Collapse
|
23
|
Protective Effect of Pyropia yezoensis Peptide on Dexamethasone-Induced Myotube Atrophy in C2C12 Myotubes. Mar Drugs 2019; 17:md17050284. [PMID: 31083497 PMCID: PMC6563069 DOI: 10.3390/md17050284] [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: 04/11/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 02/07/2023] Open
Abstract
Dexamethasone (DEX), a synthetic glucocorticoid, causes skeletal muscle atrophy. This study examined the protective effects of Pyropia yezoensis peptide (PYP15) against DEX-induced myotube atrophy and its association with insulin-like growth factor-I (IGF-I) and the Akt/mammalian target of rapamycin (mTOR)-forkhead box O (FoxO) signaling pathway. To elucidate the molecular mechanisms underlying the effects of PYP15 on DEX-induced myotube atrophy, C2C12 myotubes were treated for 24 h with 100 μM DEX in the presence or absence of 500 ng/mL PYP15. Cell viability assays revealed no PYP15 toxicity in C2C12 myotubes. PYP15 activated the insulin-like growth factor-I receptor (IGF-IR) and Akt-mTORC1 signaling pathway in DEX-induced myotube atrophy. In addition, PYP15 markedly downregulated the nuclear translocation of transcription factors FoxO1 and FoxO3a, and inhibited 20S proteasome activity. Furthermore, PYP15 inhibited the autophagy-lysosomal pathway in DEX-stimulated myotube atrophy. Our findings suggest that PYP15 treatment protected against myotube atrophy by regulating IGF-I and the Akt-mTORC1-FoxO signaling pathway in skeletal muscle. Therefore, PYP15 treatment appears to exert protective effects against skeletal muscle atrophy.
Collapse
|
24
|
Zhang YY, Gu LJ, Huang J, Cai MC, Yu HL, Zhang W, Bao JF, Yuan WJ. CKD autophagy activation and skeletal muscle atrophy-a preliminary study of mitophagy and inflammation. Eur J Clin Nutr 2019; 73:950-960. [PMID: 30607007 DOI: 10.1038/s41430-018-0381-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 10/16/2018] [Accepted: 10/31/2018] [Indexed: 01/07/2023]
Abstract
BACKGROUND/OBJECTIVES Long-lived proteins and organelles, such as mitochondria and the sarcoplasmic reticulum, are degraded by autophagy. However, the specific role of autophagy in chronic kidney disease (CKD) muscle atrophy is still undefined. SUBJECTS/METHODS This was a cross-sectional study with 20 subjects and 11 controls. Autophagy induction was studied in human skeletal muscle biopsies from CKD patients and controls by comparing the cross-sectional areas of muscle fibers, protein, and mRNA expression of autophagy-related genes and the appearance of autophagosomes. RESULTS The cross-sectional area of muscle fibers was decreased in CKD patients as compared with the control group. CKD was associated with activated autophagy and mitophagy, as measured by the elevated mRNA and protein expression of BNIP3, (microtubule-associated proteins 1 A/1B light chain 3, also MAP1LC3) LC3, p62, PINK1, and PARKIN in the skeletal muscle and isolated mitochondria of the CKD group. Electron microscopy and immunohistofluorescence analysis showed mitochondrial engulfment by autophagosomes. Mitophagy was further demonstrated by the colocalization of LC3 and p62 puncta with the mitochondrial outer membrane protein TOM20. In addition, degradative FOXO3 (Forkhead box O3) was activated and synthetic mTOR (mammalian target of rapamycin) was inhibited, whereas the upstream mediators VPS34 (class III PI3-kinase) and AKT (protein kinase B, PKB) were activated in CKD patients. CONCLUSIONS Hyperactive autophagy and mitophagy may play important roles in CKD muscle atrophy. Autophagy was activated by FOXO3 translational factors in the skeletal muscle tissues of CKD patients, which maybe a new way of intervention for CKD muscle atrophy.
Collapse
Affiliation(s)
- Yue Yue Zhang
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Li Jie Gu
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Juan Huang
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Min Chao Cai
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Hong Lei Yu
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Wei Zhang
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Jin Fang Bao
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China.
| | - Wei Jie Yuan
- Devision of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China.
| |
Collapse
|
25
|
Lee MK, Choi JW, Choi YH, Nam TJ. Pyropia yezoensis Protein Prevents Dexamethasone-Induced Myotube Atrophy in C2C12 Myotubes. Mar Drugs 2018; 16:md16120497. [PMID: 30544821 PMCID: PMC6316211 DOI: 10.3390/md16120497] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/28/2018] [Accepted: 12/06/2018] [Indexed: 12/21/2022] Open
Abstract
Glucocorticoids (GCs), which are endocrine hormones released under stress conditions, can cause skeletal muscle atrophy. This study investigated whether Pyropia yezoensis crude protein (PYCP) inhibits synthetic GCs dexamethasone (DEX)-induced myotube atrophy associated with proteolytic systems. Mouse skeletal muscle C2C12 myotubes were treated with DEX in the presence or absence of PYCP. DEX exposure (100 μM) for 24 h significantly decreased myotube diameter and myogenin expression, which were all increased by treatment with 20 and 40 μg/mL PYCP. Additionally, PYCP significantly reduced the nuclear expression of the forkhead box transcription factors, FoxO1 and FoxO3a, and ubiquitin-proteasome pathway activation. Further mechanistic research revealed that PYCP inhibited the autophagy-lysosome pathway in DEX-induced C2C12 myotubes. These findings indicate that PYCP prevents DEX-induced myotube atrophy through the regulation of FoxO transcription factors, followed by the inhibition of the ubiquitin-proteasome and autophagy-lysosome pathways. Therefore, we suggest that inhibiting these two proteolytic processes with FoxO transcription factors is a promising strategy for preventing DEX-related myotube atrophy.
Collapse
Affiliation(s)
- Min-Kyeong Lee
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Korea.
| | - Jeong-Wook Choi
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Korea.
| | - Youn Hee Choi
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Korea.
- Department of Marine Bio-Materials & Aquaculture, Pukyong National University, Busan 48513, Korea.
| | - Taek-Jeong Nam
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Korea.
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Korea.
| |
Collapse
|
26
|
In Vitro and In Vivo Functional Characterization of Essence of Chicken as An Ergogenic Aid. Nutrients 2018; 10:nu10121943. [PMID: 30544515 PMCID: PMC6316091 DOI: 10.3390/nu10121943] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 11/21/2018] [Accepted: 12/05/2018] [Indexed: 12/12/2022] Open
Abstract
Essence of chicken is a popular Asian nutritional supplement that is often taken to improve metabolism and general health. Although used as a traditional remedy for combating fatigue and general health, there has been few studies investigating the ergogenic properties of chicken essence and its associated mechanism. We conducted a study to investigate the anti-fatigue and anti-oxidant properties of essence of chicken (EC) after exercise. Six weeks old male Institute of Cancer Research (ICR) mice were divided to four groups (10 mice/group) and were provided different doses of Essence of Chicken (EC): (1) Vehicle (water), (2) EC-0.5X (558 mg/kg), (3) EC-1X (1117 mg/kg), and (4) EC-2X (2234 mg/kg). EC supplementation could improve endurance and grip strength (p < 0.0001) and it had significant effects on the fatigue-related biochemical markers: ammonia, blood urea nitrogen (BUN), and creatine kinase (CK) levels were significantly lowered, while glucose blood levels and lactate clearance were improved after exercise challenge. Muscle and liver glycogen levels, muscle and liver superoxide dismutase (SOD), hepatic catalase (CAT), and glutathione (GSH) levels were observed to increase with EC supplementation. Preliminary in vitro data suggests that EC may have a beneficial effect in muscle mass and strength. No abnormalities were observed from pathohistological examination. Our study suggests that the EC could significantly improve exercise performance and endurance capacity and that the anti-oxidant properties of EC may be an important contributing factor to its anti-fatigue effects.
Collapse
|
27
|
Samant SA, Pillai VB, Gupta MP. Cellular mechanisms promoting cachexia and how they are opposed by sirtuins 1. Can J Physiol Pharmacol 2018; 97:235-245. [PMID: 30407871 DOI: 10.1139/cjpp-2018-0479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Many chronic diseases are associated with unintentional loss of body weight, which is termed "cachexia". Cachexia is a complex multifactorial syndrome associated with the underlying primary disease, and characterized by loss of skeletal muscle with or without loss of fat tissue. Patients with cachexia face dire symptoms like dyspnea, fatigue, edema, exercise intolerance, and low responsiveness to medical therapy, which worsen quality of life. Because cachexia is not a stand-alone disorder, treating primary disease - such as cancer - takes precedence for the physician, and it remains mostly a neglected illness. Existing clinical trials have demonstrated limited success mostly because of their monotherapeutic approach and late detection of the syndrome. To conquer cachexia, it is essential to identify as many molecular targets as possible using the latest technologies we have at our disposal. In this review, we have discussed different aspects of cachexia, which include various disease settings, active molecular pathways, and recent novel advances made in this field to understand consequences of this illness. We also discuss roles of the sirtuins, the NAD+-dependent lysine deacetylases, microRNAs, certain dietary options, and epigenetic drugs as potential approaches, which can be used to tackle cachexia as early as possible in its course.
Collapse
Affiliation(s)
- Sadhana A Samant
- Department of Surgery, Committee on Molecular and Cellular Physiology, Biological Sciences Division, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA.,Department of Surgery, Committee on Molecular and Cellular Physiology, Biological Sciences Division, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Vinodkumar B Pillai
- Department of Surgery, Committee on Molecular and Cellular Physiology, Biological Sciences Division, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA.,Department of Surgery, Committee on Molecular and Cellular Physiology, Biological Sciences Division, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Mahesh P Gupta
- Department of Surgery, Committee on Molecular and Cellular Physiology, Biological Sciences Division, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA.,Department of Surgery, Committee on Molecular and Cellular Physiology, Biological Sciences Division, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA
| |
Collapse
|
28
|
Sawa R, Nishida H, Yamamoto Y, Wake I, Kai N, Kikkawa U, Okimura Y. Growth hormone and Insulin-like growth factor-I (IGF-I) modulate the expression of L-type amino acid transporters in the muscles of spontaneous dwarf rats and L6 and C2C12 myocytes. Growth Horm IGF Res 2018; 42-43:66-73. [PMID: 30273774 DOI: 10.1016/j.ghir.2018.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 08/10/2018] [Accepted: 09/21/2018] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Branched-chain amino acids (BCAAs) have been reported to inhibit several types of muscle atrophy via the activation of the mechanistic target of rapamycin complex 1 (mTORC1). However, we previously found that BCAA did not activate mTORC1 in growth hormone (GH)-deficient spontaneous dwarf rats (SDRs), and that GH restored the stimulatory effect of BCAAs toward the mTORC1. The objective of this study was to determine whether GH or Insulin-like growth factor-I (IGF-I) stimulated the expression of L-type amino acid transporters (LATs) that delivered BCAAs, and whether LATs were involved in the mTORC1 activation. DESIGN After the continuous administration of GH, cross-sectional areas (CSAs) of muscle fibers and LAT mRNA levels in the skeletal muscles of SDRs were compared to those from the SDRs that received normal saline. The effect of GH and IGF-I on LAT mRNA levels were determined in L6 and C2C12 myocytes. The effects of 2-aminobicyclo[2.2.1]heptane-2-carboxylic acid (BCH), a blocker for LATs, and LAT1 siRNA on mTORC1 activation and cell functions were examined in C2C12 cells. RESULTS GH increased LAT1 and LAT4 mRNA levels in accordance with the increase in CSAs of muscle fibers in SDRs. IGF-I, and not GH, increased LAT1 mRNA levels in cultured L6 myocytes. IGF-I also increased LAT1 mRNA level in another myocyte line, C2C12. Furthermore, IGF-I reduced LAT3 and LAT4 mRNA levels in both cell lines. GH reduced LAT3 and LAT4 mRNA levels in L6 cells. BCH decreased basal C2C12 cell proliferation and reduced IGF-I-induced phosphorylation of 4E-BP1 and S6K, both of which are mTORC1 targets, but LAT1 siRNA did not affect the phosphorylation. This suggests that BCH may exert its effect via other pathway than LAT1. CONCLUSIONS IGF-I increased LAT1 mRNA level in myocytes. However, the role of LAT1 in IGF-I-induced mTORC1 activation and cell functions remains unclear.
Collapse
Affiliation(s)
- Ran Sawa
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Hikaru Nishida
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Yu Yamamoto
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Ikumi Wake
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Noriko Kai
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan
| | - Ushio Kikkawa
- Division of Signal Functions, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Yasuhiko Okimura
- Department of Nutrition and Food Science, Kobe Women's University Graduate School of Life Sciences, 2-1 Higashisuma-aoyama, Suma-ku, Kobe 654-8585, Japan.
| |
Collapse
|
29
|
Ohtaka A, Aoki H, Nagata M, Kanayama M, Shimizu F, Ide H, Tsujimura A, Horie S. Sarcopenia is a poor prognostic factor of castration-resistant prostate cancer treated with docetaxel therapy. Prostate Int 2018; 7:9-14. [PMID: 30937292 PMCID: PMC6424678 DOI: 10.1016/j.prnil.2018.04.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/20/2018] [Accepted: 04/19/2018] [Indexed: 12/25/2022] Open
Abstract
Background Sarcopenia is a geriatric syndrome that is characterized by the gradual muscle loss and frailty in the elderly. Meanwhile, the prevalence of prostate cancer is on the rise worldwide. Mainstay treatments for metastatic prostate cancer are androgen-deprivation therapy and taxane-based chemotherapy. Owing to the indolent nature of prostate cancer, these treatments tend to be long-lasting, giving rise to the problem of tolerance to the treatments. Especially given the fact that long-term chemotherapy is closely associated with muscle loss, we aimed to elucidate the correlation between chemotherapy and sarcopenia in the clinical setting. Materials and methods This study was a retrospective study. Participants with castration-resistant prostate cancer were recruited from November 2009 to September 2015.Participants were recruited at two hospitals, Juntendo and Teikyo University Hospital, Tokyo, Japan.Participants were 77 Japanese males with castration-resistant prostate cancer who underwent docetaxel chemotherapy.Sarcopenia was defined as L3-psoas muscle index < 5.7 cm2/m2. We statistically investigated whether the existence of sarcopenia has an impact on the survival time, and identified potential covariates that affect it. Results Out of 77 patients, 26 patients (34%) were diagnosed as sarcopenia. Analysis showed that sarcopenia is independently associated with mortality risk (hazards ratio = 2.74, P = 0.0055). Sarcopenic patients showed significant decrease in body mass index, pretreatment hemoglobin, C-related protein, and L3-psoas muscle index as compared with nonsarcopenic patients. The median observation period was 499 days (330-790). Thirty-five patients (45%) died of prostate cancer during that period. Sarcopenic patients showed significantly shorter survival time after the initiation of docetaxel treatments (P = 0.0055). Conclusion Sarcopenia is an independent predictive factor for a poor tolerance to docetaxel treatment. Given that cessation of the treatment leads to death from the disease, our study identified sarcopenia as an independent factor that raises mortality risk.
Collapse
Affiliation(s)
- Ayako Ohtaka
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Hiroaki Aoki
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Masayoshi Nagata
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Mayuko Kanayama
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Fumitaka Shimizu
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Hisamitsu Ide
- Department of Urology, School of Medicine, Teikyo University, Tokyo, Japan
| | - Akira Tsujimura
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Shigeo Horie
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| |
Collapse
|
30
|
|
31
|
Yamamoto Y, Sawa R, Wake I, Morimoto A, Okimura Y. Glucose-mediated inactivation of AMP-activated protein kinase reduces the levels of L-type amino acid transporter 1 mRNA in C2C12 cells. Nutr Res 2017; 47:13-20. [DOI: 10.1016/j.nutres.2017.08.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 08/05/2017] [Accepted: 08/22/2017] [Indexed: 12/25/2022]
|
32
|
Bifari F, Ruocco C, Decimo I, Fumagalli G, Valerio A, Nisoli E. Amino acid supplements and metabolic health: a potential interplay between intestinal microbiota and systems control. GENES & NUTRITION 2017; 12:27. [PMID: 29043007 PMCID: PMC5628494 DOI: 10.1186/s12263-017-0582-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 08/17/2017] [Indexed: 01/12/2023]
Abstract
Dietary supplementation of essential amino acids (EAAs) has been shown to promote healthspan. EAAs regulate, in fact, glucose and lipid metabolism and energy balance, increase mitochondrial biogenesis, and maintain immune homeostasis. Basic science and epidemiological results indicate that dietary macronutrient composition affects healthspan through multiple and integrated mechanisms, and their effects are closely related to the metabolic status to which they act. In particular, EAA supplementation can trigger different and even opposite effects depending on the catabolic and anabolic states of the organisms. Among others, gut-associated microbial communities (referred to as gut microbiota) emerged as a major regulator of the host metabolism. Diet and host health influence gut microbiota, and composition of gut microbiota, in turn, controls many aspects of host health, including nutrient metabolism, resistance to infection, and immune signals. Altered communication between the innate immune system and the gut microbiota might contribute to complex diseases. Furthermore, gut microbiota and its impact to host health change largely during different life phases such as lactation, weaning, and aging. Here we will review the accumulating body of knowledge on the impact of dietary EAA supplementation on the host metabolic health and healthspan from a holistic perspective. Moreover, we will focus on the current efforts to establish causal relationships among dietary EAAs, gut microbiota, and health during human development.
Collapse
Affiliation(s)
- Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Ilaria Decimo
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Guido Fumagalli
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| |
Collapse
|
33
|
Di Dalmazi G, Quinkler M, Deutschbein T, Prehn C, Rayes N, Kroiss M, Berr CM, Stalla G, Fassnacht M, Adamski J, Reincke M, Beuschlein F. Cortisol-related metabolic alterations assessed by mass spectrometry assay in patients with Cushing's syndrome. Eur J Endocrinol 2017; 177:227-237. [PMID: 28566446 DOI: 10.1530/eje-17-0109] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/21/2017] [Accepted: 05/30/2017] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Endogenous hypercortisolism is a chronic condition associated with severe metabolic disturbances and cardiovascular sequela. The aim of this study was to characterize metabolic alterations in patients with different degrees of hypercortisolism by mass-spectrometry-based targeted plasma metabolomic profiling and correlate the metabolomic profile with clinical and hormonal data. DESIGN Cross-sectional study. METHODS Subjects (n = 149) were classified according to clinical and hormonal characteristics: Cushing's syndrome (n = 46), adrenocortical adenomas with autonomous cortisol secretion (n = 31) or without hypercortisolism (n = 27). Subjects with suspicion of hypercortisolism, but normal hormonal/imaging testing, served as controls (n = 42). Clinical and hormonal data were retrieved for all patients and targeted metabolomic profiling was performed. RESULTS Patients with hypercortisolism showed lower levels of short-/medium-chain acylcarnitines and branched-chain and aromatic amino acids, but higher polyamines levels, in comparison to controls. These alterations were confirmed after excluding diabetic patients. Regression models showed significant correlation between cortisol after dexamethasone suppression test (DST) and 31 metabolites, independently of confounding/contributing factors. Among those, histidine and spermidine were also significantly associated with catabolic signs and symptoms of hypercortisolism. According to an discriminant analysis, the panel of metabolites was able to correctly classify subjects into the main diagnostic categories and to distinguish between subjects with/without altered post-DST cortisol and with/without diabetes in >80% of the cases. CONCLUSIONS Metabolomic profiling revealed alterations of intermediate metabolism independently associated with the severity of hypercortisolism, consistent with disturbed protein synthesis/catabolism and incomplete β-oxidation, providing evidence for the occurrence of metabolic inflexibility in hypercortisolism.
Collapse
Affiliation(s)
- Guido Di Dalmazi
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, München, Germany
- Division of Endocrinology, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | - Timo Deutschbein
- Division of Endocrinology/Diabetology, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Munich, Germany
| | - Nada Rayes
- Department of General-, Visceral and Transplant Surgery, Charité Campus Virchow Clinic, Berlin, Germany
| | - Matthias Kroiss
- Central Laboratory, University Hospital Würzburg, Würzburg, Germany
| | - Christina M Berr
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, München, Germany
| | - Günter Stalla
- Max-Planck-Institute of Psychiatry, Clinical Neuroendocrinology Unit, München, Germany
| | - Martin Fassnacht
- Division of Endocrinology/Diabetology, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
- Central Laboratory, University Hospital Würzburg, Würzburg, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Munich, Germany
- Lehrstuhl für Experimentelle Genetik, Technische Universität München, German Center for Diabetes Research (DZD), Neuherberg, Germany
| | | | - Felix Beuschlein
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, München, Germany
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitätsspital Zürich, Zürich, Switzerland
| |
Collapse
|
34
|
Khedr NF, Khedr EG. Branched chain amino acids supplementation modulates TGF-β1/Smad signaling pathway and interleukins in CCl4-induced liver fibrosis. Fundam Clin Pharmacol 2017; 31:534-545. [DOI: 10.1111/fcp.12297] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 05/13/2017] [Accepted: 05/19/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Naglaa F. Khedr
- Faculty of Pharmacy; Tanta University; Postal number: 31527 Tanta Egypt
| | - Eman G. Khedr
- Faculty of Pharmacy; Tanta University; Postal number: 31527 Tanta Egypt
| |
Collapse
|
35
|
Bifari F, Nisoli E. Branched-chain amino acids differently modulate catabolic and anabolic states in mammals: a pharmacological point of view. Br J Pharmacol 2017; 174:1366-1377. [PMID: 27638647 PMCID: PMC5429325 DOI: 10.1111/bph.13624] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/28/2016] [Accepted: 08/03/2016] [Indexed: 12/21/2022] Open
Abstract
Substantial evidence has been accumulated suggesting that branched-chain amino acid (BCAA) supplementation or BCAA-rich diets have a positive effect on the regulation of body weight, muscle protein synthesis, glucose homeostasis, the ageing process and extend healthspan. Despite these beneficial effects, epidemiological studies have shown that BCAA plasma concentrations and BCAA metabolism are altered in several metabolic disorders, including type 2 diabetes mellitus and cardiovascular diseases. In this review article, we present an overview of the current literature on the different effects of BCAAs in health and disease. We also highlight the results showing the most promising therapeutic effects of dietary BCAA supplementation and discuss how BCAAs can trigger different and even opposite effects, depending on the catabolic and anabolic states of the organisms. Moreover, we consider the effects of BCAAs when metabolism is abnormal, in the presence of a mixture of different anabolic and catabolic signals. These unique pharmacodynamic properties may partially explain some of the markedly different effects found in BCAA supplementation studies. To predict accurately these effects, the overall catabolic/anabolic status of patients should be carefully considered. In wider terms, a correct modulation of metabolic disorders would make nutraceutical interventions with BCAAs more effective. LINKED ARTICLES This article is part of a themed section on Principles of Pharmacological Research of Nutraceuticals. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.11/issuetoc.
Collapse
Affiliation(s)
- Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational MedicineUniversity of MilanMilanItaly
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational MedicineUniversity of MilanMilanItaly
| |
Collapse
|
36
|
Khelfi A, Azzouz M, Abtroun R, Reggabi M, Alamir B. [Direct mechanism of action in toxic myopathies]. ANNALES PHARMACEUTIQUES FRANÇAISES 2017; 75:323-343. [PMID: 28526123 DOI: 10.1016/j.pharma.2017.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/02/2017] [Accepted: 04/03/2017] [Indexed: 01/04/2023]
Abstract
Toxic myopathies are a large group of disorders generated by surrounding agents and characterized by structural and/or functional disturbances of muscles. The most recurrent are those induced by commonly used medications. Illicit drugs, environmental toxins from animals, vegetables, or produced by micro-organisms as well as chemical products commonly used are significant causes of such disorders. The muscle toxicity results from multiple mechanisms at different biological levels. Many agents can induce myotoxicity through a direct mechanism in which statins, glucocorticoids and ethyl alcohol are the most representative. Diverse mechanisms were highlighted as interaction with macromolecules and induction of metabolic and cellular dysfunctions. Muscle damage can be related to amphiphilic properties of some drugs (chloroquine, hydroxychloroquine, etc.) leading to specific lysosomal disruptions and autophagic dysfunctions. Some agents affect the whole muscle fiber by inducing oxidative stress (ethyl alcohol and some statins) or triggering cell death pathways (apoptosis or necrosis) resulting in extensive alterations. More studies on these mechanisms are needed. They would allow a better knowledge of the intracellular mediators involved in these pathologies in order to develop targeted therapies of high efficiency.
Collapse
Affiliation(s)
- A Khelfi
- Service de toxicologie, CHU Bab-El-Oued, rue Mohamed-Lamine-Debaghine, 16009 Alger, Algérie; Centre national de toxicologie, route du Petit-Staouali-Delly-Brahim, 16062 Alger, Algérie.
| | - M Azzouz
- Laboratoire central de biologie et de toxicologie, EHS Ait-Idir, rue Abderrezak-Hahad-Casbah, 16017 Alger, Algérie
| | - R Abtroun
- Service de toxicologie, CHU Bab-El-Oued, rue Mohamed-Lamine-Debaghine, 16009 Alger, Algérie
| | - M Reggabi
- Laboratoire central de biologie et de toxicologie, EHS Ait-Idir, rue Abderrezak-Hahad-Casbah, 16017 Alger, Algérie
| | - B Alamir
- Service de toxicologie, CHU Bab-El-Oued, rue Mohamed-Lamine-Debaghine, 16009 Alger, Algérie; Centre national de toxicologie, route du Petit-Staouali-Delly-Brahim, 16062 Alger, Algérie
| |
Collapse
|
37
|
Tsuchida W, Iwata M, Akimoto T, Matsuo S, Asai Y, Suzuki S. Heat Stress Modulates Both Anabolic and Catabolic Signaling Pathways Preventing Dexamethasone-Induced Muscle Atrophy In Vitro. J Cell Physiol 2017; 232:650-664. [PMID: 27649272 PMCID: PMC5132157 DOI: 10.1002/jcp.25609] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 09/19/2016] [Indexed: 12/29/2022]
Abstract
It is generally recognized that synthetic glucocorticoids induce skeletal muscle weakness, and endogenous glucocorticoid levels increase in patients with muscle atrophy. It is reported that heat stress attenuates glucocorticoid-induced muscle atrophy; however, the mechanisms involved are unknown. Therefore, we examined the mechanisms underlying the effects of heat stress against glucocorticoid-induced muscle atrophy using C2C12 myotubes in vitro, focusing on expression of key molecules and signaling pathways involved in regulating protein synthesis and degradation. The synthetic glucocorticoid dexamethasone decreased myotube diameter and protein content, and heat stress prevented the morphological and biochemical glucocorticoid effects. Heat stress also attenuated increases in mRNAs of regulated in development and DNA damage responses 1 (REDD1) and Kruppel-like factor 15 (KLF15). Heat stress recovered the dexamethasone-induced inhibition of PI3K/Akt signaling. These data suggest that changes in anabolic and catabolic signals are involved in heat stress-induced protection against glucocorticoid-induced muscle atrophy. These results have a potentially broad clinical impact because elevated glucocorticoid levels are implicated in a wide range of diseases associated with muscle wasting. J. Cell. Physiol. 232: 650-664, 2017. © 2016 The Authors. Journal of Cellular Physiology published by Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Wakako Tsuchida
- Department of RehabilitationFaculty of Health SciencesNihon Fukushi UniversityHandaAichiJapan
- Program in Physical and Occupational TherapyGraduate School of MedicineNagoya UniversityNagoyaAichiJapan
| | - Masahiro Iwata
- Department of RehabilitationFaculty of Health SciencesNihon Fukushi UniversityHandaAichiJapan
- Program in Physical and Occupational TherapyGraduate School of MedicineNagoya UniversityNagoyaAichiJapan
| | - Takayuki Akimoto
- Faculty of Sport SciencesWaseda UniversityTokorozawaSaitamaJapan
| | - Shingo Matsuo
- Department of RehabilitationFaculty of Health SciencesNihon Fukushi UniversityHandaAichiJapan
- Program in Physical and Occupational TherapyGraduate School of MedicineNagoya UniversityNagoyaAichiJapan
| | - Yuji Asai
- Department of RehabilitationFaculty of Health SciencesNihon Fukushi UniversityHandaAichiJapan
| | - Shigeyuki Suzuki
- Program in Physical and Occupational TherapyGraduate School of MedicineNagoya UniversityNagoyaAichiJapan
| |
Collapse
|
38
|
Ishikawa T, Kitaura Y, Kadota Y, Morishita Y, Ota M, Yamanaka F, Xu M, Ikawa M, Inoue N, Kawano F, Nakai N, Murakami T, Miura S, Hatazawa Y, Kamei Y, Shimomura Y. Muscle-specific deletion of BDK amplifies loss of myofibrillar protein during protein undernutrition. Sci Rep 2017; 7:39825. [PMID: 28051178 PMCID: PMC5209746 DOI: 10.1038/srep39825] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 11/28/2016] [Indexed: 12/30/2022] Open
Abstract
Branched-chain amino acids (BCAAs) are essential amino acids for mammals and play key roles in the regulation of protein metabolism. However, the effect of BCAA deficiency on protein metabolism in skeletal muscle in vivo remains unclear. Here we generated mice with lower BCAA concentrations by specifically accelerating BCAA catabolism in skeletal muscle and heart (BDK-mKO mice). The mice appeared to be healthy without any obvious defects when fed a protein-rich diet; however, bolus ingestion of BCAAs showed that mTORC1 sensitivity in skeletal muscle was enhanced in BDK-mKO mice compared to the corresponding control mice. When these mice were fed a low protein diet, the concentration of myofibrillar protein was significantly decreased (but not soluble protein) and mTORC1 activity was reduced without significant change in autophagy. BCAA supplementation in drinking water attenuated the decreases in myofibrillar protein levels and mTORC1 activity. These results suggest that BCAAs are essential for maintaining myofibrillar proteins during protein undernutrition by keeping mTORC1 activity rather than by inhibiting autophagy and translation. This is the first report to reveal the importance of BCAAs for protein metabolism of skeletal muscle in vivo.
Collapse
Affiliation(s)
- Takuya Ishikawa
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Yasuyuki Kitaura
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Yoshihiro Kadota
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Yukako Morishita
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Miki Ota
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Fumiya Yamanaka
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Minjun Xu
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Masahito Ikawa
- Animal Resource Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Naokazu Inoue
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Fuminori Kawano
- Graduate School of Health Sciences, Matsumoto University, Matsumoto, Nagano, Japan
| | - Naoya Nakai
- School of Human Cultures, University of Shiga Prefecture, Hikone, Shiga, Japan
| | - Taro Murakami
- Department of Nutrition, Shigakkan University, Obu, Aichi, Japan
| | - Shinji Miura
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Yukino Hatazawa
- Graduate School of Environmental and Life Science, Kyoto Prefectural University, Kyoto, Japan
| | - Yasutomi Kamei
- Graduate School of Environmental and Life Science, Kyoto Prefectural University, Kyoto, Japan
| | - Yoshiharu Shimomura
- Laboratory of Nutritional Biochemistry, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| |
Collapse
|
39
|
Yoshimura R, Takai M, Namaki H, Minami K, Imamura W, Kato H, Kamei Y, Kanamoto R. Down Regulation of Asparagine Synthetase and 3-Phosphoglycerate Dehydrogenase, and the Up-Regulation of Serine Dehydratase in Rat Liver from Intake of Excess Amount of Leucine Are Not Related to Leucine-Caused Amino Acid Imbalance. J Nutr Sci Vitaminol (Tokyo) 2016; 61:441-8. [PMID: 26875484 DOI: 10.3177/jnsv.61.441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Asparagine synthetase (ASNS), 3-phosphoglycerate dehydrogenase (PHGDH) and serine dehydratase (SDS) in rat liver are expressed in response to protein and amino acid intake. In the present study, we examined the expression of these enzymes in relation to amino acid imbalance caused by leucine. Rats were subjected to leucine administration in the diet or orally between meals. Consumption of more than 2% leucine in a 6% casein diet suppressed food intake and caused growth retardation in a dose-dependent manner, but this was not seen in a 12% or 40% casein diet. ASNS and PHGDH expression in the liver was significantly induced by the 6% casein diet and was suppressed by leucine in a dose-dependent manner, whereas the SDS expression was induced. These effects were leucine specific and not seen with ingestion of isoleucine or valine. However, leucine orally administered between meals did not change the food intake or growth of rats fed a 6% casein die, though it similarly affected the expression of ASNS, PHGDH and SDS in the liver. These results suggest that the growth retardation caused by leucine imbalance was mainly because of the suppression of food intake, and demonstrated that there are no causal relationships between ASNS, PHGDH and SDS expression and amino acid imbalance caused by leucine.
Collapse
Affiliation(s)
- Ryoji Yoshimura
- Laboratory of Molecular Nutrition, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Xiao W, Chen P, Liu X, Zhao L. The Impaired Function of Macrophages Induced by Strenuous Exercise Could Not Be Ameliorated by BCAA Supplementation. Nutrients 2015; 7:8645-56. [PMID: 26506374 PMCID: PMC4632445 DOI: 10.3390/nu7105425] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 10/08/2015] [Accepted: 10/14/2015] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to evaluate the effect of strenuous exercise on the functions of peritoneal macrophages in rats and to test the hypothesis that branched-chain amino acid (BCAA) supplementation will be beneficial to the macrophages of rats from strenuous exercise. Forty male Wistar rats were randomly divided into five groups: (C) Control, E) Exercise, (E1) Exercise with one week to recover, (ES) Exercise + Supplementation and (ES1) Exercise + Supplementation with 1 week to recover. All rats except those of the sedentary control were subjected to four weeks of strenuous exercise. Blood hemoglobin, serum testosterone and BCAA levels were tested. Peritoneal macrophages functions were also determined at the same time. The data showed that hemoglobin, testosterone, BCAA levels, and body weight in group E decreased significantly as compared with that of group C. Meanwhile, phagocytosis capacity (decreased by 17.07%, p = 0.031), reactive oxygen species (ROS) production (decreased by 26%, p = 0.003) and MHC II mRNA (decreased by 22%, p = 0.041) of macrophages decreased in the strenuous exercise group as compared with group C. However, the chemotaxis of macrophages did not change significantly. In addition, BCAA supplementation could slightly increase the serum BCAA levels of rats from strenuous exercise (increased by 6.70%, p > 0.05). Moreover, the body weight, the blood hemoglobin, the serum testosterone and the function of peritoneal macrophages in group ES did not change significantly as compared with group E. These results suggest that long-term intensive exercise impairs the function of macrophages, which is essential for microbicidal capability. This may represent a novel mechanism of immunosuppression induced by strenuous exercise. Moreover, the impaired function of macrophage induced by strenuous exercise could not be ameliorated by BCAA supplementation in the dosing and timing used for this study.
Collapse
Affiliation(s)
- Weihua Xiao
- Department of Sports Science, Shanghai University of Sport, Shanghai 200438, China.
| | - Peijie Chen
- Department of Sports Science, Shanghai University of Sport, Shanghai 200438, China.
| | - Xiaoguang Liu
- Department of Sports Science, Shanghai University of Sport, Shanghai 200438, China.
| | - Linlin Zhao
- Department of Sports Science, Shanghai University of Sport, Shanghai 200438, China.
| |
Collapse
|
41
|
Jang J, Yun HY, Park J, Lim K. Protective effect of branched chain amino acids on hindlimb suspension-induced muscle atrophy in growing rats. J Exerc Nutrition Biochem 2015; 19:183-9. [PMID: 26527098 PMCID: PMC4624119 DOI: 10.5717/jenb.2015.15062704] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 06/08/2015] [Accepted: 06/27/2015] [Indexed: 11/04/2022] Open
Abstract
PURPOSE The effect of BCAA (branched chain amino acid) administration on muscle atrophy during growth phases is not well known. We investigated whether BCAA administration can prevent the muscle atrophy induced by hindlimb suspension in growing male rats. METHODS Male Wistar rats were assigned to 1 of 2 groups (n = 7/group): hindlimb suspension and hindlimb suspension with oral BCAA administration (600 mg·kg(-1)·day(-1), valine 1: leucine 2: isoleucine 1). After 14 days of hindlimb suspension, the weight and mRNA levels of the soleus muscle were measured. RESULTS BCAA administration prevented a decrease in soleus muscle weight. BCAA administration attenuated atrogin-1 and MuRF1 mRNA expression, which has been reported to play a pivotal role in muscle atrophy. CONCLUSION BCAA could serve as an effective supplement for the prevention or treatment of muscle atrophy, especially atrophy caused by weightlessness.
Collapse
Affiliation(s)
- Jiwoong Jang
- Laboratory of Exercise Nutrition, Department of Physical Education, Konkuk University, Seoul, Republic of Korea
| | - Hea-Yeon Yun
- Physical Activity and Performance Institute (PAPI), Konkuk University, Seoul, Republic of Korea
| | - Jonghoon Park
- Laboratory of Exercise Nutrition, Department of Physical Education, Konkuk University, Seoul, Republic of Korea ; Physical Activity and Performance Institute (PAPI), Konkuk University, Seoul, Republic of Korea
| | - Kiwon Lim
- Laboratory of Exercise Nutrition, Department of Physical Education, Konkuk University, Seoul, Republic of Korea ; Physical Activity and Performance Institute (PAPI), Konkuk University, Seoul, Republic of Korea
| |
Collapse
|
42
|
Decuypere JP, Ceulemans LJ, Agostinis P, Monbaliu D, Naesens M, Pirenne J, Jochmans I. Autophagy and the Kidney: Implications for Ischemia-Reperfusion Injury and Therapy. Am J Kidney Dis 2015; 66:699-709. [PMID: 26169721 DOI: 10.1053/j.ajkd.2015.05.021] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 05/21/2015] [Indexed: 11/11/2022]
Abstract
Autophagy, an evolutionary conserved intracellular lysosome-dependent catabolic process, is an important mechanism for cellular homeostasis and survival during pathologic stress conditions in the kidney, such as ischemia-reperfusion injury (IRI). However, stimulation of autophagy has been described to both improve and exacerbate IRI in the kidney. We summarize the current understanding of autophagy in renal IRI and discuss possible reasons for these contradictory findings. Furthermore, we hypothesize that autophagy plays a dual role in renal IRI, having both protective and detrimental properties, depending on the duration of the ischemic period and the phase of the IRI process. Finally, we discuss the influence of currently used diuretics and immunosuppressive drugs on autophagy, underscoring the need to clarify the puzzling role of autophagy in renal IRI.
Collapse
Affiliation(s)
- Jean-Paul Decuypere
- Department of Microbiology and Immunology, Laboratory of Abdominal Transplantation, KU Leuven, University of Leuven, Leuven, Belgium; Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium.
| | - Laurens J Ceulemans
- Department of Microbiology and Immunology, Laboratory of Abdominal Transplantation, KU Leuven, University of Leuven, Leuven, Belgium; Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Patrizia Agostinis
- Department of Cellular and Molecular Medicine, Laboratory of Cell Death Research and Therapy, Leuven, Belgium
| | - Diethard Monbaliu
- Department of Microbiology and Immunology, Laboratory of Abdominal Transplantation, KU Leuven, University of Leuven, Leuven, Belgium; Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Maarten Naesens
- Department of Microbiology and Immunology, Laboratory of Nephrology, KU Leuven, University of Leuven, Leuven, Belgium; Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | - Jacques Pirenne
- Department of Microbiology and Immunology, Laboratory of Abdominal Transplantation, KU Leuven, University of Leuven, Leuven, Belgium; Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Ina Jochmans
- Department of Microbiology and Immunology, Laboratory of Abdominal Transplantation, KU Leuven, University of Leuven, Leuven, Belgium; Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| |
Collapse
|
43
|
Tanada Y, Shioi T, Kato T, Kawamoto A, Okuda J, Kimura T. Branched-chain amino acids ameliorate heart failure with cardiac cachexia in rats. Life Sci 2015; 137:20-7. [PMID: 26141987 DOI: 10.1016/j.lfs.2015.06.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 06/01/2015] [Accepted: 06/27/2015] [Indexed: 12/25/2022]
Abstract
AIMS Heart failure (HF) is associated with changes in energy metabolism of the heart, as well as in extra-cardiac organs such as the skeletal muscles. Cardiac cachexia is a common complication and is associated with poor prognosis. Branched-chain amino acids (BCAAs) reportedly improve sarcopenia and cancer cachexia. We tested the hypothesis that BCAA ameliorates HF with cardiac cachexia. MAIN METHODS We used Dahl salt-sensitive (DS) rats fed a high-salt diet as a model of HF. DS rats fed a low-salt diet were used as a control. BCAA were administered in drinking water from 11weeks of age, when cardiac hypertrophy was established but the cardiac function was preserved. Survival and the cardiac function were monitored, and animals were sacrificed at 21weeks of age and analyzed. KEY FINDINGS In HF rats, BCAA treatment decreased the heart rate, preserved the cardiac function, and prolonged survival. BCAA also prevented body weight loss, associated with preservation of the skeletal muscle weight. Moreover, gene expression related to mitochondrial biogenesis and function was increased with BCAA in skeletal muscles. SIGNIFICANCE BCAA preserved the body weight and cardiac function and prolonged survival in HF rats. The expression of genes involved in mitochondrial biogenesis and function in skeletal muscles was increased by BCAA.
Collapse
Affiliation(s)
- Yohei Tanada
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tetsuo Shioi
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
| | - Takao Kato
- Cardiovascular Center, Tazuke Kofukai Medical Research Institute, Kitano Hospital, 2-4-20 Ohgimachi, Kita-ku, Osaka 530-8480, Japan
| | - Akira Kawamoto
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Junji Okuda
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| |
Collapse
|
44
|
Dexamethasone and BCAA Failed to Modulate Muscle Mass and mTOR Signaling in GH-Deficient Rats. PLoS One 2015; 10:e0128805. [PMID: 26086773 PMCID: PMC4472719 DOI: 10.1371/journal.pone.0128805] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 04/30/2015] [Indexed: 01/07/2023] Open
Abstract
Branched-chain amino acids (BCAAs) and IGF-I, the secretion of which is stimulated by growth hormone (GH), prevent muscle atrophy. mTOR plays a pivotal role in the protective actions of BCAA and IGF-1. The pathway by which BCAA activates mTOR is different from that of IGF-1, which suggests that BCAA and GH work independently. We tried to examine whether BCAA exerts a protective effect against dexamethasone (Dex)-induced muscle atrophy independently of GH using GH-deficient spontaneous dwarf rats (SDRs). Unexpectedly, Dex did not induce muscle atrophy assessed by the measurement of cross-sectional area (CSA) of the muscle fibers and did not increase atrogin-1, MuRF1 and REDD1 expressions, which are activated during protein degradation. Glucocorticoid (GR) mRNA levels were higher in SDRs compared to GH-treated SDRs, indicating that the low expression of GR is not the reason of the defect of Dex's action in SDRs. BCAA did not stimulate the phosphorylation of p70S6K or 4E-BP1, which stimulate protein synthesis. BCAA did not decrease the mRNA level of atrogin-1 or MuRF1. These findings suggested that Dex failed to modulate muscle mass and that BCAA was unable to activate mTOR in SDRs because these phosphorylations of p70S6K and 4E-BP1 and the reductions of these mRNAs are regulated by mTOR. In contrast, after GH supplementation, these responses to Dex were normalized and muscle fiber CSA was decreased by Dex. BCAA prevented the Dex-induced decrease in CSA. BCAA increased the phosphorylation of p70S6K and decreased the Dex-induced elevations of atrogin-1 and Bnip3 mRNAs. However, the amount of mTORC1 components including mTOR was not decreased in the SDRs compared to the normal rats. These findings suggest that GH increases mTORC1 activity but not its content to recover the action of BCAA in SDRs and that GH is required for actions of Dex and BCAA in muscles.
Collapse
|
45
|
NOH KYUNGKYUN, CHUNG KIWUNG, SUNG BOKYUNG, KIM MINJO, PARK CHANHUM, YOON CHANGSHIN, CHOI JAESUE, KIM MIKYUNG, KIM CHEOLMIN, KIM NAMDEUK, CHUNG HAEYOUNG. Loquat (Eriobotrya japonica) extract prevents dexamethasone-induced muscle atrophy by inhibiting the muscle degradation pathway in Sprague Dawley rats. Mol Med Rep 2015; 12:3607-3614. [DOI: 10.3892/mmr.2015.3821] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 05/08/2015] [Indexed: 11/06/2022] Open
|
46
|
Ribeiro CB, Christofoletti DC, Pezolato VA, de Cássia Marqueti Durigan R, Prestes J, Tibana RA, Pereira ECL, de Sousa Neto IV, Durigan JLQ, da Silva CA. Leucine minimizes denervation-induced skeletal muscle atrophy of rats through akt/mtor signaling pathways. Front Physiol 2015; 6:73. [PMID: 25852565 PMCID: PMC4364154 DOI: 10.3389/fphys.2015.00073] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 02/20/2015] [Indexed: 11/20/2022] Open
Abstract
The aim of the present study was to evaluate the effect of leucine treatment (0.30 mM) on muscle weight and signaling of myoproteins related to synthesis and degradation pathways of soleus muscle following seven days of complete sciatic nerve lesion. Wistar rats (n = 24) of 3–4 months of age (192 ± 23 g) were used. The animals were randomly distributed into four experimental groups (n = 6/group): control, treated with leucine (L), denervated (D) and denervated treated with leucine (DL). Dependent measures were proteins levels of AKT, AMPK, mTOR, and ACC performed by Western blot. Leucine induced a reduction in the phosphorylation of AMPK (p < 0.05) by 16% in the L and by 68% in the DL groups as compared with control group. Denervation increased AMPK by 24% in the D group as compared with the control group (p < 0.05). AKT was also modulated by denervation and leucine treatment, highlighted by the elevation of AKT phosphorylation in the D (65%), L (98%) and DL (146%) groups as compared with the control group (p < 0.05). AKT phosphorylation was 49% higher in the D group as compared with the DL group. Furthermore, denervation decreased mTOR phosphorylation by 29% in the D group as compared with the control group. However, leucine treatment induced an increase of 49% in the phosphorylation of mTOR in the L group as compared with the control group, and an increase of 154% in the DL as compared with the D group (p < 0.05). ACC phosphorylation was 20% greater in the D group than the control group. Furthermore, ACC in the soleus was 22% lower in the in the L group and 50% lower in the DL group than the respective control group (p < 0.05). In conclusion, leucine treatment minimized the deleterious effects of denervation on rat soleus muscle by increasing anabolic (AKT and mTOR) and decreasing catabolic (AMPK) pathways. These results may be interesting for muscle recovery following acute denervation, which may contribute to musculoskeletal rehabilitation after denervation.
Collapse
Affiliation(s)
- Carolina B Ribeiro
- Programa de Pós-graduação em Ciências do Movimento Humano, Methodist University of Piracicaba, UNIMEP Piracicaba, Brazil
| | - Daiane C Christofoletti
- Programa de Pós-graduação em Ciências do Movimento Humano, Methodist University of Piracicaba, UNIMEP Piracicaba, Brazil
| | - Vitor A Pezolato
- Programa de Pós-graduação em Ciências do Movimento Humano, Methodist University of Piracicaba, UNIMEP Piracicaba, Brazil
| | | | - Jonato Prestes
- Graduate Program of Physical Education, Catholic University of Brasília Brasilia, Brazil
| | - Ramires A Tibana
- Graduate Program of Physical Education, Catholic University of Brasília Brasilia, Brazil
| | - Elaine C L Pereira
- Graduate Program of Science and Technology of Health, University of Brasília Brasilia, Brazil
| | - Ivo V de Sousa Neto
- Graduate Program of Physical Education, Catholic University of Brasília Brasilia, Brazil
| | - João L Q Durigan
- Graduate Program of Science and Technology of Health, University of Brasília Brasilia, Brazil ; Graduate Program of Physical Education, University of Brasília Brasilia, Brazil
| | - Carlos A da Silva
- Programa de Pós-graduação em Ciências do Movimento Humano, Methodist University of Piracicaba, UNIMEP Piracicaba, Brazil
| |
Collapse
|
47
|
Abstract
Muscle RING finger 1 (MuRF1) and muscle atrophy F-box (MAFbx)/atrogin-1 were identified more than 10 years ago as two muscle-specific E3 ubiquitin ligases that are increased transcriptionally in skeletal muscle under atrophy-inducing conditions, making them excellent markers of muscle atrophy. In the past 10 years much has been published about MuRF1 and MAFbx with respect to their mRNA expression patterns under atrophy-inducing conditions, their transcriptional regulation, and their putative substrates. However, much remains to be learned about the physiological role of both genes in the regulation of mass and other cellular functions in striated muscle. Although both MuRF1 and MAFbx are enriched in skeletal, cardiac, and smooth muscle, this review will focus on the current understanding of MuRF1 and MAFbx in skeletal muscle, highlighting the critical questions that remain to be answered.
Collapse
Affiliation(s)
- Sue C Bodine
- Departments of Neurobiology, Physiology, and Behavior and Physiology and Membrane Biology, University of California Davis, Davis, California; and Northern California Veterans Affairs Health Systems, Mather, California
| | - Leslie M Baehr
- Membrane Biology, University of California Davis, Davis, California; and
| |
Collapse
|
48
|
Noh KK, Chung KW, Choi YJ, Park MH, Jang EJ, Park CH, Yoon C, Kim ND, Kim MK, Chung HY. β-Hydroxy β-methylbutyrate improves dexamethasone-induced muscle atrophy by modulating the muscle degradation pathway in SD rat. PLoS One 2014; 9:e102947. [PMID: 25032690 PMCID: PMC4102592 DOI: 10.1371/journal.pone.0102947] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/24/2014] [Indexed: 11/18/2022] Open
Abstract
Skeletal muscle atrophy results from various conditions including high levels of glucocorticoids, and β-hydroxy β-methylbutyrate (HMB; a metabolite of leucine) is a potent therapeutical supplement used to treat various muscle disorders. Recent studies have demonstrated that HMB inhibits dexamethasone-induced atrophy in cultured myotubes, but its effect on dexamethasone-induced muscle atrophy has not been determined in vivo. In the present study, we investigated the effect of HMB on dexamethasone-induced muscle atrophy in rats. Treatment with dexamethasone weakened grip strengths and increased muscle damage as determined by increased serum creatine kinase levels and by histological analysis. Dexamethasone treatment also reduced both soleus and gastrocnemius muscle masses. However, HMB supplementation significantly prevented reductions in grip strengths, reduced muscle damage, and prevented muscle mass and protein concentration decrease in soleus muscle. Biochemical analysis demonstrated that dexamethasone markedly increased levels of MuRF1 protein, which causes the ubiquitination and degradation of MyHC. Indeed, dexamethasone treatment decreased MyHC protein expression and increased the ubiquitinated-MyHC to MyHC ratio. However, HMB supplementation caused the down-regulations of MuRF1 protein and of ubiquitinated-MyHC. Furthermore, additional experiments provided evidence that HMB supplementation inhibited the nuclear translocation of FOXO1 induced by dexamethasone, and showed increased MyoD expression in the nuclear fractions of soleus muscles. These findings suggest that HMB supplementation attenuates dexamethasone-induced muscle wasting by regulating FOXO1 transcription factor and subsequent MuRF1 expression. Accordingly, our results suggest that HMB supplementation could be used to prevent steroid myopathy.
Collapse
Affiliation(s)
- Kyung Kyun Noh
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Ki Wung Chung
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Yeon Ja Choi
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Min Hi Park
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Eun Ji Jang
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Chan Hum Park
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Changshin Yoon
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Nam Deuk Kim
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Mi Kyung Kim
- Longevity Life Science and Technology Institute, Pusan National University, Busan, Republic of Korea
| | - Hae Young Chung
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, Pusan National University, Busan, Republic of Korea
- * E-mail:
| |
Collapse
|
49
|
Troncoso R, Paredes F, Parra V, Gatica D, Vásquez-Trincado C, Quiroga C, Bravo-Sagua R, López-Crisosto C, Rodriguez AE, Oyarzún AP, Kroemer G, Lavandero S. Dexamethasone-induced autophagy mediates muscle atrophy through mitochondrial clearance. Cell Cycle 2014; 13:2281-95. [PMID: 24897381 DOI: 10.4161/cc.29272] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Glucocorticoids, such as dexamethasone, enhance protein breakdown via ubiquitin-proteasome system. However, the role of autophagy in organelle and protein turnover in the glucocorticoid-dependent atrophy program remains unknown. Here, we show that dexamethasone stimulates an early activation of autophagy in L6 myotubes depending on protein kinase, AMPK, and glucocorticoid receptor activity. Dexamethasone increases expression of several autophagy genes, including ATG5, LC3, BECN1, and SQSTM1 and triggers AMPK-dependent mitochondrial fragmentation associated with increased DNM1L protein levels. This process is required for mitophagy induced by dexamethasone. Inhibition of mitochondrial fragmentation by Mdivi-1 results in disrupted dexamethasone-induced autophagy/mitophagy. Furthermore, Mdivi-1 increases the expression of genes associated with the atrophy program, suggesting that mitophagy may serve as part of the quality control process in dexamethasone-treated L6 myotubes. Collectively, these data suggest a novel role for dexamethasone-induced autophagy/mitophagy in the regulation of the muscle atrophy program.
Collapse
Affiliation(s)
- Rodrigo Troncoso
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Felipe Paredes
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Valentina Parra
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile; Department of Internal Medicine (Cardiology Division); University of Texas Southwestern Medical Center; Dallas, TX USA
| | - Damián Gatica
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - César Vásquez-Trincado
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Clara Quiroga
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Roberto Bravo-Sagua
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Camila López-Crisosto
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Andrea E Rodriguez
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Alejandra P Oyarzún
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile
| | - Guido Kroemer
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer; INSERM; Centre de Recherche des Cordeliers; Paris, France; Metabolomics and Cell Biology Platforms; Institut Gustave Roussy; Villejuif, France; Pôle de Biologie; Hôpital Européen Georges Pompidou; AP-HP; Paris, France; Université Paris Descartes; Paris Sorbonne Cité; Paris, France
| | - Sergio Lavandero
- Advanced Center for Chronic Disease (ACCDiS); University of Chile; Santiago, Chile; Center for Molecular Studies of the Cell; Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago, Chile; Department of Internal Medicine (Cardiology Division); University of Texas Southwestern Medical Center; Dallas, TX USA
| |
Collapse
|
50
|
Izumi Y, Miyashita T, Kitajima T, Yoshimura S, Takeoka A, Eguchi K, Motomura M, Kawakami A, Migita K. Two cases of refractory polymyositis accompanied with steroid myopathy. Mod Rheumatol 2014; 25:143-9. [DOI: 10.3109/14397595.2013.874750] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Yasumori Izumi
- Department of General Internal Medicine and Rheumatology, NHO National Nagasaki Medical Center, Omura, Japan
| | - Taiichiro Miyashita
- Department of General Internal Medicine and Rheumatology, NHO National Nagasaki Medical Center, Omura, Japan
| | - Tsubasa Kitajima
- Department of General Internal Medicine and Rheumatology, NHO National Nagasaki Medical Center, Omura, Japan
| | - Shunsuke Yoshimura
- Department of General Internal Medicine and Rheumatology, NHO National Nagasaki Medical Center, Omura, Japan
| | - Atsushi Takeoka
- Department of General Internal Medicine and Rheumatology, NHO National Nagasaki Medical Center, Omura, Japan
| | - Katsumi Eguchi
- Department of Rheumatology, Sasebo City General Hospital, Sasebo, Japan
| | - Masakatsu Motomura
- Department of Neurology and Rheumatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Atsushi Kawakami
- Department of Neurology and Rheumatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Kiyoshi Migita
- Department of General Internal Medicine and Rheumatology, NHO National Nagasaki Medical Center, Omura, Japan
| |
Collapse
|