1
|
Kim JG, Sharma AR, Lee YH, Chatterjee S, Choi YJ, Rajvansh R, Chakraborty C, Lee SS. Therapeutic Potential of Quercetin as an Antioxidant for Bone-Muscle-Tendon Regeneration and Aging. Aging Dis 2024:AD.2024.0282. [PMID: 39012676 DOI: 10.14336/ad.2024.0282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 06/24/2024] [Indexed: 07/17/2024] Open
Abstract
Quercetin (QC), a naturally occurring bioflavonoid found in various fruits and vegetables, possesses many potential health benefits, primarily attributed to its robust antioxidant properties. The generation of oxidative stress in bone cells is a key modulator of their physiological behavior. Moreover, oxidative stress status influences the pathophysiology of mineralized tissues. Increasing scientific evidence demonstrates that manipulating the redox balance in bone cells might be an effective technique for developing bone disease therapies. The QC antioxidant abilities in skeletal muscle significantly enhance muscle regeneration and reduce muscle atrophy. In addition, QC has been shown to have protective effects against oxidative stress, inflammation, apoptosis, and matrix degradation in tendons, helping to maintain the structural integrity and functionality of tendons. Thus, the antioxidant properties of QC might be crucial for addressing age-related musculoskeletal disorders like osteoporosis, sarcopenia, and tendon-related inflammatory conditions. Understanding how QC influences redox signaling pathways involved in musculoskeletal disorders, including their effect on bone, muscle, and tendon differentiation, might provide insights into the diverse advantages of QC in promoting tissue regeneration and preventing cellular damage. Therefore, this study reviewed the intricate relationship among oxidative stress, inflammation, and tissue repair, affected by the antioxidative abilities of QC, in age-related musculoskeletal tissues to improve the overall health of bones, muscles, and tendons of the skeletal system. Also, reviewing the ongoing clinical trials of QC for musculoskeletal systems is encouraging. Given the positive effect of QC on musculoskeletal health, further scientific investigations and controlled human intervention studies are necessary to explore the therapeutic potential to its optimum strength.
Collapse
Affiliation(s)
- Jae Gyu Kim
- Institute for Skeletal Aging &;amp Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Korea
| | - Ashish Ranjan Sharma
- Institute for Skeletal Aging &;amp Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Korea
| | - Yeon-Hee Lee
- Institute for Skeletal Aging &;amp Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Korea
| | - Srijan Chatterjee
- Institute for Skeletal Aging &;amp Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Korea
| | - Yean Jung Choi
- Department of Food and Nutrition, Sahmyook University, Seoul 01795, Korea
| | - Roshani Rajvansh
- Institute for Skeletal Aging &;amp Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Korea
| | - Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Barasat-Barrackpore Road, Kolkata, West Bengal 700126, India
| | - Sang-Soo Lee
- Institute for Skeletal Aging &;amp Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Korea
| |
Collapse
|
2
|
Nguyen NB, Le TT, Kang SW, Cha KH, Choi S, Youn HY, Jung SH, Kim M. Cornflower Extract and Its Active Components Alleviate Dexamethasone-Induced Muscle Wasting by Targeting Cannabinoid Receptors and Modulating Gut Microbiota. Nutrients 2024; 16:1130. [PMID: 38674820 PMCID: PMC11054969 DOI: 10.3390/nu16081130] [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: 01/31/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Sarcopenia, a decline in muscle mass and strength, can be triggered by aging or medications like glucocorticoids. This study investigated cornflower (Centaurea cyanus) water extract (CC) as a potential protective agent against DEX-induced muscle wasting in vitro and in vivo. CC and its isolated compounds mitigated oxidative stress, promoted myofiber growth, and boosted ATP production in C2C12 myotubes. Mechanistically, CC reduced protein degradation markers, increased mitochondrial content, and activated protein synthesis signaling. Docking analysis suggested cannabinoid receptors (CB) 1 and 2 as potential targets of CC compounds. Specifically, graveobioside A from CC inhibited CB1 and upregulated CB2, subsequently stimulating protein synthesis and suppressing degradation. In vivo, CC treatment attenuated DEX-induced muscle wasting, as evidenced by enhanced grip strength, exercise performance, and modulation of muscle gene expression related to differentiation, protein turnover, and exercise performance. Moreover, CC enriched gut microbial diversity, and the abundance of Clostridium sensu stricto 1 positively correlated with muscle mass. These findings suggest a multifaceted mode of action for CC: (1) direct modulation of the muscle cannabinoid receptor system favoring anabolic processes and (2) indirect modulation of muscle health through the gut microbiome. Overall, CC presents a promising therapeutic strategy for preventing and treating muscle atrophy.
Collapse
Affiliation(s)
- Ngoc Bao Nguyen
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea; (N.B.N.); (T.T.L.); (S.W.K.); (S.C.); (H.-Y.Y.)
- Department of Biochemistry and Molecular Biology, College of Dentistry, Gangneung Wonju National University, Gangneung 25451, Republic of Korea
| | - Tam Thi Le
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea; (N.B.N.); (T.T.L.); (S.W.K.); (S.C.); (H.-Y.Y.)
| | - Suk Woo Kang
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea; (N.B.N.); (T.T.L.); (S.W.K.); (S.C.); (H.-Y.Y.)
| | - Kwang Hyun Cha
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26426, Republic of Korea
| | - Sowoon Choi
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea; (N.B.N.); (T.T.L.); (S.W.K.); (S.C.); (H.-Y.Y.)
| | - Hye-Young Youn
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea; (N.B.N.); (T.T.L.); (S.W.K.); (S.C.); (H.-Y.Y.)
| | - Sang Hoon Jung
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea; (N.B.N.); (T.T.L.); (S.W.K.); (S.C.); (H.-Y.Y.)
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Myungsuk Kim
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea; (N.B.N.); (T.T.L.); (S.W.K.); (S.C.); (H.-Y.Y.)
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26426, Republic of Korea
| |
Collapse
|
3
|
Jeon DY, Jeong SY, Lee JW, Kim J, Kim JH, Chu HS, Jeong WJ, Lee BJ, Ahn B, Kim J, Choi SH, Park JW. FOXO1 Is a Key Mediator of Glucocorticoid-Induced Expression of Tristetraprolin in MDA-MB-231 Breast Cancer Cells. Int J Mol Sci 2022; 23:ijms232213673. [PMID: 36430156 PMCID: PMC9693238 DOI: 10.3390/ijms232213673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 11/10/2022] Open
Abstract
The mRNA destabilizing factor tristetraprolin (TTP) functions as a tumor suppressor by down-regulating cancer-associated genes. TTP expression is significantly reduced in various cancers, which contributes to cancer processes. Enforced expression of TTP impairs tumorigenesis and abolishes maintenance of the malignant state, emphasizing the need to identify a TTP inducer in cancer cells. To search for novel candidate agents for inducing TTP in cancer cells, we screened a library containing 1019 natural compounds using MCF-7 breast cancer cells transfected with a reporter vector containing the TTP promoter upstream of the luciferase gene. We identified one molecule, of which the enantiomers are betamethasone 21-phosphate (BTM-21-P) and dexamethasone 21-phosphate (BTM-21-P), as a potent inducer of TTP in cancer cells. We confirmed that BTM-21-P, DXM-21-P, and dexamethasone (DXM) induced the expression of TTP in MDA-MB-231 cells in a glucocorticoid receptor (GR)-dependent manner. To identify potential pathways linking BTM-21-P and DXM-21-P to TTP induction, we performed an RNA sequencing-based transcriptome analysis of MDA-MB-231 cells at 3 h after treatment with these compounds. A heat map analysis of FPKM expression showed a similar expression pattern between cells treated with the two compounds. The KEGG pathway analysis results revealed that the upregulated DEGs were strongly associated with several pathways, including the Hippo signaling pathway, PI3K-Akt signaling pathway, FOXO signaling pathway, NF-κB signaling pathway, and p53 signaling pathway. Inhibition of the FOXO pathway using a FOXO1 inhibitor blocked the effects of BTM-21-P and DXM-21-P on the induction of TTP in MDA-MB-231 cells. We found that DXM enhanced the binding of FOXO1 to the TTP promoter in a GR-dependent manner. In conclusion, we identified a natural compound of which the enantiomers are DXM-21-P and BTM-21-P as a potent inducer of TTP in breast cancer cells. We also present new insights into the role of FOXO1 in the DXM-21-P- and BTM-21-P-induced expression of TTP in cancer cells.
Collapse
Affiliation(s)
- Do Yong Jeon
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Korea
| | - So Yeon Jeong
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Korea
| | - Ju Won Lee
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Korea
| | - Jeonghwan Kim
- School of System Biomedical Science, Soongsil University, Seoul 06978, Korea
| | - Jee Hyun Kim
- RopheLBio, B102, Seoul Forest M Tower, Seoul 04778, Korea
| | - Hun Su Chu
- RopheLBio, B102, Seoul Forest M Tower, Seoul 04778, Korea
| | - Won Jin Jeong
- RopheLBio, B102, Seoul Forest M Tower, Seoul 04778, Korea
| | - Byung Ju Lee
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Korea
| | - Byungyong Ahn
- Department of Food Science and Nutrition, University of Ulsan, Ulsan 44610, Korea
| | - Junil Kim
- School of System Biomedical Science, Soongsil University, Seoul 06978, Korea
| | - Seong Hee Choi
- RopheLBio, B102, Seoul Forest M Tower, Seoul 04778, Korea
- Correspondence: (S.H.C.); (J.W.P.)
| | - Jeong Woo Park
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Korea
- Correspondence: (S.H.C.); (J.W.P.)
| |
Collapse
|
4
|
Shen Y, Li M, Wang K, Qi G, Liu H, Wang W, Ji Y, Chang M, Deng C, Xu F, Shen M, Sun H. Diabetic Muscular Atrophy: Molecular Mechanisms and Promising Therapies. Front Endocrinol (Lausanne) 2022; 13:917113. [PMID: 35846289 PMCID: PMC9279556 DOI: 10.3389/fendo.2022.917113] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/03/2022] [Indexed: 12/23/2022] Open
Abstract
Diabetes mellitus (DM) is a typical chronic disease that can be divided into 2 types, dependent on insulin deficiency or insulin resistance. Incidences of diabetic complications gradually increase as the disease progresses. Studies in diabetes complications have mostly focused on kidney and cardiovascular diseases, as well as neuropathy. However, DM can also cause skeletal muscle atrophy. Diabetic muscular atrophy is an unrecognized diabetic complication that can lead to quadriplegia in severe cases, seriously impacting patients' quality of life. In this review, we first identify the main molecular mechanisms of muscle atrophy from the aspects of protein degradation and synthesis signaling pathways. Then, we discuss the molecular regulatory mechanisms of diabetic muscular atrophy, and outline potential drugs and treatments in terms of insulin resistance, insulin deficiency, inflammation, oxidative stress, glucocorticoids, and other factors. It is worth noting that inflammation and oxidative stress are closely related to insulin resistance and insulin deficiency in diabetic muscular atrophy. Regulating inflammation and oxidative stress may represent another very important way to treat diabetic muscular atrophy, in addition to controlling insulin signaling. Understanding the molecular regulatory mechanism of diabetic muscular atrophy could help to reveal new treatment strategies.
Collapse
Affiliation(s)
- Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Ming Li
- Department of Laboratory Medicine, Department of Endocrinology, Binhai County People’s Hospital affiliated to Kangda College of Nanjing Medical University, Yancheng, China
| | - Kexin Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Guangdong Qi
- Department of Laboratory Medicine, Department of Endocrinology, Binhai County People’s Hospital affiliated to Kangda College of Nanjing Medical University, Yancheng, China
| | - Hua Liu
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, Nantong, China
| | - Wei Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Yanan Ji
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Mengyuan Chang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Chunyan Deng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Feng Xu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
| | - Mi Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, National Medical Products Administration (NMPA) Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
- Nanjing Institute of Tissue Engineering and Regenerative Medicine Technology, Nanjing, China
| |
Collapse
|
5
|
Jia H, Yamashita T, Li X, Kato H. Laurel Attenuates Dexamethasone-Induced Skeletal Muscle Atrophy In Vitro and in a Rat Model. Nutrients 2022; 14:nu14102029. [PMID: 35631169 PMCID: PMC9143575 DOI: 10.3390/nu14102029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 12/13/2022] Open
Abstract
Prevention of muscle atrophy contributes to improved quality of life and life expectancy. In this study, we investigated the effects of laurel, selected from 34 spices and herbs, on dexamethasone (DEX)-induced skeletal muscle atrophy and deciphered the underlying mechanisms. Co-treatment of C2C12 myotubes with laurel for 12 h inhibited the DEX-induced expression of intracellular ubiquitin ligases—muscle atrophy F-box (atrogin-1/MAFbx) and muscle RING finger 1 (MuRF1)—and reduction in myotube diameter. Male Wistar rats were supplemented with 2% laurel for 17 days, with DEX-induced skeletal muscle atrophy occurring in the last 3 days. Laurel supplementation inhibited the mRNA expression of MuRF1, regulated DNA damage and development 1 (Redd1), and forkhead box class O 1 (Foxo1) in the muscles of rats. Mechanistically, we evaluated the effects of laurel on the cellular proteolysis machinery—namely, the ubiquitin/proteasome system and autophagy—and the mTOR signaling pathway, which regulates protein synthesis. These data indicated that the amelioration of DEX-induced skeletal muscle atrophy induced by laurel, is mainly mediated by the transcriptional inhibition of downstream factors of the ubiquitin-proteasome system. Thus, laurel may be a potential food ingredient that prevents muscle atrophy.
Collapse
|
6
|
Torres-Velarde JM, Kolora SRR, Khudyakov JI, Crocker DE, Sudmant PH, Vázquez-Medina JP. Elephant seal muscle cells adapt to sustained glucocorticoid exposure by shifting their metabolic phenotype. Am J Physiol Regul Integr Comp Physiol 2021; 321:R413-R428. [PMID: 34260302 DOI: 10.1152/ajpregu.00052.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 07/12/2021] [Indexed: 12/15/2022]
Abstract
Elephant seals experience natural periods of prolonged food deprivation while breeding, molting, and undergoing postnatal development. Prolonged food deprivation in elephant seals increases circulating glucocorticoids without inducing muscle atrophy, but the cellular mechanisms that allow elephant seals to cope with such conditions remain elusive. We generated a cellular model and conducted transcriptomic, metabolic, and morphological analyses to study how seal cells adapt to sustained glucocorticoid exposure. Seal muscle progenitor cells differentiate into contractile myotubes with a distinctive morphology, gene expression profile, and metabolic phenotype. Exposure to dexamethasone at three ascending concentrations for 48 h modulated the expression of six clusters of genes related to structural constituents of muscle and pathways associated with energy metabolism and cell survival. Knockdown of the glucocorticoid receptor (GR) and downstream expression analyses corroborated that GR mediates the observed effects. Dexamethasone also decreased cellular respiration, shifted the metabolic phenotype toward glycolysis, and induced mitochondrial fission and dissociation of mitochondria-endoplasmic reticulum (ER) interactions without decreasing cell viability. Knockdown of DNA damage-inducible transcript 4 (DDIT4), a GR target involved in the dissociation of mitochondria-ER membranes, recovered respiration and modulated antioxidant gene expression in myotubes treated with dexamethasone. These results show that adaptation to sustained glucocorticoid exposure in elephant seal myotubes involves a metabolic shift toward glycolysis, which is supported by alterations in mitochondrial morphology and a reduction in mitochondria-ER interactions, resulting in decreased respiration without compromising cell survival.
Collapse
Affiliation(s)
| | | | - Jane I Khudyakov
- Department of Biological Sciences, University of the Pacific, Stockton, California
| | - Daniel E Crocker
- Department of Biology, Sonoma State University, Rohnert Park, California
| | - Peter H Sudmant
- Department of Integrative Biology, University of California, Berkeley, California
| | | |
Collapse
|
7
|
Aravena-Canales D, Aedo JE, Molina A, Valdés JA. Regulation of the early expression of MAFbx/atrogin-1 and MuRF1 through membrane-initiated cortisol action in the skeletal muscle of rainbow trout. Comp Biochem Physiol B Biochem Mol Biol 2021; 253:110565. [PMID: 33497801 DOI: 10.1016/j.cbpb.2021.110565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/18/2020] [Accepted: 01/13/2021] [Indexed: 11/17/2022]
Abstract
Glucocorticoids are key stress-related hormones in vertebrates, with cortisol being the main glucocorticoid in teleosts. Glucocorticoids exert their effects through two mechanisms of action: genomic/classic and membrane initiated. In mammals, cortisol-mediated stress has been found to be associated with increased expression of critical atrophy-related genes (atrogenes), such as MAFbx/atrogin-1 and murf1/trim63. However, the direct impact of cortisol on the early regulation of atrogene expression in teleost skeletal muscle and the contribution of membrane-initiated cortisol action to this process have not been identified. In this work, the mRNA levels of atrogin-1 and murf1 were assessed in isolated myotubes and skeletal muscle of rainbow trout administered with cortisol or cortisol-BSA. This latter compound is a membrane-impermeable cortisol analog that exclusively induces membrane-initiated effects. We found that cortisol (10 mg/kg) first decreased the expression of both atrogenes at 3 h of treatment and then increased their expression at 9 h of treatment in the skeletal muscle of rainbow trout. Additionally, the in vitro analysis suggested that membrane-initiated cortisol action regulates murf1 but not atrogin-1 in rainbow trout myotubes. Using RU486 to selectively block glucocorticoid receptor (GR), we found that early downregulation of murf1 is potentially mediated by membrane GR signaling in myotubes. Considering the results of both the in vivo and in vitro approaches, we suggest that membrane-initiated cortisol action regulates the early expression of atrophy-related processes in teleosts.
Collapse
Affiliation(s)
- Daniela Aravena-Canales
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile
| | - Jorge E Aedo
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile
| | - Alfredo Molina
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile
| | - Juan Antonio Valdés
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile.
| |
Collapse
|
8
|
Langendorf EK, Rommens PM, Drees P, Mattyasovszky SG, Ritz U. Detecting the Effects of the Glucocorticoid Dexamethasone on Primary Human Skeletal Muscle Cells-Differences to the Murine Cell Line. Int J Mol Sci 2020; 21:E2497. [PMID: 32260276 PMCID: PMC7177793 DOI: 10.3390/ijms21072497] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/26/2020] [Accepted: 03/31/2020] [Indexed: 12/20/2022] Open
Abstract
Skeletal muscle atrophy is characterized by a decrease in muscle fiber size as a result of a decreased protein synthesis, which leads to degradation of contractile muscle fibers. It can occur after denervation and immobilization, and glucocorticoids (GCs) may also increase protein breakdown contributing to the loss of muscle mass and myofibrillar proteins. GCs are already used in vitro to induce atrophic conditions, but until now no studies with primary human skeletal muscle existed. Therefore, this study deals with the effects of the GC dexamethasone (dex) on primary human myoblasts and myotubes. After incubation with 1, 10, and 100 µM dex for 48 and 72 h, gene and protein expression analyses were performed by qPCR and Western blot. Foxo, MuRF-1, and MAFbx were significantly upregulated by dex, and there was increased gene expression of myogenic markers. However, prolonged incubation periods demonstrated no Myosin protein degradation, but an increase of MuRF-1 expression. In conclusion, applying dex did not only differently affect primary human myoblasts and myotubes, as differences were also observed when compared to murine cells. Based on our findings, studies using cell lines or animal cells should be interpreted with caution as signaling transduction and functional behavior might differ in diverse species.
Collapse
Affiliation(s)
| | | | | | | | - Ulrike Ritz
- Department of Orthopedics and Traumatology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (E.K.L.); (P.M.R.); (P.D.); (S.G.M.)
| |
Collapse
|
9
|
Xing L, Zhang X, Feng H, Liu S, Li D, Hasegawa T, Guo J, Li M. Silencing FOXO1 attenuates dexamethasone-induced apoptosis in osteoblastic MC3T3-E1 cells. Biochem Biophys Res Commun 2019; 513:1019-1026. [PMID: 31010677 DOI: 10.1016/j.bbrc.2019.04.112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 04/15/2019] [Indexed: 12/12/2022]
Abstract
Dexamethasone (DEX), a widely used glucocorticoid with strong anti-inflammatory and immunosuppressive activities, has been reported to induce apoptosis in osteoblasts, but the underlying mechanisms are still not comprehensively investigated. FOXO1 plays an important role in the regulation of cell proliferation and apoptosis. Our study aims to explore the role of FOXO1 in DEX-induced apoptosis of osteoblastic MC3T3-E1 cells through bioinformatics and experiments. We first employed bioinformatics to identify DEX-related genes and revealed their functions by GO enrichment analysis including FOXO1 associated biological processes. Expression level of FOXO1 was validated by GEO data. Then, experiments were performed to verify the hypothesis. CCK8 was used to detect cell viability and apoptosis was detected by flow cytometry. SiRNA was used to silence FOXO1 and western-blot was employed to detect protein expression. Results demonstrated DEX-related genes involved in cell proliferation, apoptosis and angiogenesis and FOXO1 was a regulator of apoptosis. DEX could up-regulate FOXO1 expression, inhibit cell viability, promote apoptosis. SiRNA-FOXO1 could attenuate DEX-induced apoptosis in MC3T3-E1. These findings suggested DEX could affect some vital biological processes of MC3T3-E1 and FOXO1 played an essential role in DEX-induced apoptosis in MC3T3-E1.
Collapse
Affiliation(s)
- Lu Xing
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, 250012, China
| | - Xiaoqi Zhang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, 250012, China
| | - Hao Feng
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, 250012, China
| | - Shanshan Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, 250012, China
| | - Dongfang Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, 250012, China
| | - Tomoka Hasegawa
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Sapporo, 060-8586, Japan
| | - Jie Guo
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, 250012, China
| | - Minqi Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, 250012, China.
| |
Collapse
|
10
|
Kretschmar C, Peña-Oyarzun D, Hernando C, Hernández-Moya N, Molina-Berríos A, Hernández-Cáceres MP, Lavandero S, Budini M, Morselli E, Parra V, Troncoso R, Criollo A. Polycystin-2 Is Required for Starvation- and Rapamycin-Induced Atrophy in Myotubes. Front Endocrinol (Lausanne) 2019; 10:280. [PMID: 31133985 PMCID: PMC6517509 DOI: 10.3389/fendo.2019.00280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 04/16/2019] [Indexed: 12/13/2022] Open
Abstract
Muscle atrophy involves a massive catabolism of intracellular components leading to a significant reduction in cellular and tissue volume. In this regard, autophagy, an intracellular mechanism that degrades proteins and organelles, has been implicated with muscle breakdown. Recently, it has shown that polycystin-2 (PC2), a membrane protein that belongs to the transient receptor potential (TRP) family, is required for the maintenance of cellular proteostasis, by regulating autophagy in several cell types. The role of PC2 in the control of atrophy and autophagy in skeletal muscle remains unknown. Here, we show that PC2 is required for the induction of atrophy in C2C12 myotubes caused by nutrient deprivation or rapamycin exposure. Consistently, overexpression of PC2 induces atrophy in C2C12 myotubes as indicated by decreasing of the myogenic proteins myogenin and caveolin-3. In addition, we show that inhibition of mTORC1, by starvation or rapamycin is inhibited in cells when PC2 is silenced. Importantly, even if PC2 regulates mTORC1, our results show that the regulation of atrophy by PC2 is independent of autophagy. This study provides novel evidence regarding the role of PC2 in skeletal muscle cell atrophy.
Collapse
Affiliation(s)
- Catalina Kretschmar
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Daniel Peña-Oyarzun
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Cecilia Hernando
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Nadia Hernández-Moya
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Alfredo Molina-Berríos
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
| | - María Paz Hernández-Cáceres
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sergio Lavandero
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
- Facultad de Medicina, Centro de Estudios en Ejercicio, Metabolismo y Cáncer, Universidad de Chile, Santiago, Chile
- Cardiology Division, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Mauricio Budini
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Eugenia Morselli
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Valentina Parra
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
- Facultad de Medicina, Centro de Estudios en Ejercicio, Metabolismo y Cáncer, Universidad de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
| | - Rodrigo Troncoso
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
- Laboratorio de Investigación en Nutrición y Actividad Física, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile
- *Correspondence: Rodrigo Troncoso
| | - Alfredo Criollo
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas, Universidad de Chile, Santiago, Chile
- Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
- Autophagy Research Center, Santiago, Chile
- Alfredo Criollo
| |
Collapse
|