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Martínez-Gayo A, Félix-Soriano E, Sáinz N, González-Muniesa P, Moreno-Aliaga MJ. Changes Induced by Aging and Long-Term Exercise and/or DHA Supplementation in Muscle of Obese Female Mice. Nutrients 2022; 14:nu14204240. [PMID: 36296923 PMCID: PMC9610919 DOI: 10.3390/nu14204240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
Obesity and aging promote chronic low-grade systemic inflammation. The aim of the study was to analyze the effects of long-term physical exercise and/or omega-3 fatty acid Docosahexaenoic acid (DHA) supplementation on genes or proteins related to muscle metabolism, inflammation, muscle damage/regeneration and myokine expression in aged and obese mice. Two-month-old C57BL/6J female mice received a control or a high-fat diet for 4 months. Then, the diet-induced obese (DIO) mice were distributed into four groups: DIO, DIO + DHA, DIO + EX (treadmill training) and DIO + DHA + EX up to 18 months. Mice fed a control diet were sacrificed at 2, 6 and 18 months. Aging increased the mRNA expression of Tnf-α and decreased the expression of genes related to glucose uptake (Glut1, Glut4), muscle atrophy (Murf1, Atrogin-1, Cas-9) and myokines (Metrnl, Il-6). In aged DIO mice, exercise restored several of these changes. It increased the expression of genes related to glucose uptake (Glut1, Glut4), fatty acid oxidation (Cpt1b, Acox), myokine expression (Fndc5, Il-6) and protein turnover, decreased Tnf-α expression and increased p-AKT/AKT ratio. No additional effects were observed when combining exercise and DHA. These data suggest the effectiveness of long-term training to prevent the deleterious effects of aging and obesity on muscle dysfunction.
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Affiliation(s)
- Alejandro Martínez-Gayo
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain
- Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
| | - Elisa Félix-Soriano
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain
- Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
| | - Neira Sáinz
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain
- Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
| | - Pedro González-Muniesa
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain
- Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Health Institute (ISCIII), 28029 Madrid, Spain
- IdISNA–Navarra Institute for Health Research, 31008 Pamplona, Spain
- Correspondence: (P.G.-M.); (M.J.M.-A.)
| | - María J. Moreno-Aliaga
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain
- Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Health Institute (ISCIII), 28029 Madrid, Spain
- IdISNA–Navarra Institute for Health Research, 31008 Pamplona, Spain
- Correspondence: (P.G.-M.); (M.J.M.-A.)
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102
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A preliminary study on the role of Piezo1 channels in myokine release from cultured mouse myotubes. Biochem Biophys Res Commun 2022; 623:148-153. [DOI: 10.1016/j.bbrc.2022.07.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 07/14/2022] [Indexed: 11/20/2022]
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103
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Purnamasari D, Tetrasiwi EN, Kartiko GJ, Astrella C, Husam K, Laksmi PW. Sarcopenia and Chronic Complications of Type 2 Diabetes Mellitus. Rev Diabet Stud 2022; 18:157-165. [PMID: 36309772 PMCID: PMC9652710 DOI: 10.1900/rds.2022.18.157] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Sarcopenia, defined as the loss of skeletal muscle mass and strength and/or a decrease in physical performance, is classically related to aging. However, chronic disease, including type 2 diabetes mellitus (T2DM), may accelerate the development of sarcopenia. Previous studies found strong association between T2DM and sarcopenia. Insulin resistance that exists in T2DM is thought to be the key mediator for impaired physical function and mobility which may lead to sarcopenia. T2DM may cause sarcopenia through the mediation of insulin resistance, inflammation, accumulation of advanced glycation end-products, and oxidative stress that may affect muscle mass and strength, protein metabolism, and vascular and mitochondrial dysfunction. On the other hand, loss of muscle in sarcopenia may play a role in the development of T2DM through the decreased production of myokines that play a role in glucose and fat metabolism. This review highlights the findings of existing literature on the relationship between T2DM and sarcopenia which emphasize the pathophysiology, chronic vascular complications, and the course of macrovascular and microvascular complications in T2DM.
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Affiliation(s)
- Dyah Purnamasari
- Division of Endocrinology Metabolism and Diabetes, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia,,Metabolic Disorder, Cardiovascular and Aging Research Center, The Indonesian Medical Education and Research Institute, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Erpryta Nurdia Tetrasiwi
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Gracia Jovita Kartiko
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Cindy Astrella
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Khoirul Husam
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Purwita Wijaya Laksmi
- Division of Geriatric, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia.,Address correspondence to: Purwita Wijaya Laksmi, e-mail:
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104
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Low skeletal muscle radiodensity and neutrophil-to-lymphocyte ratio as predictors of poor outcome in patients with COVID-19. Sci Rep 2022; 12:15718. [PMID: 36127500 PMCID: PMC9488878 DOI: 10.1038/s41598-022-20126-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 09/08/2022] [Indexed: 12/15/2022] Open
Abstract
Inflammatory states and body composition changes are associated with a poor prognosis in many diseases, but their role in coronavirus disease 2019 (COVID-19) is not fully understood. To assess the impact of low skeletal muscle radiodensity (SMD), high neutrophil-to-lymphocyte ratio (NLR) and a composite score based on both variables, on complications, use of ventilatory support, and survival in patients with COVID-19. Medical records of patients hospitalized between May 1, 2020, and July 31, 2020, with a laboratory diagnosis of COVID-19 who underwent computed tomography (CT) were retrospectively reviewed. CT-derived body composition measurements assessed at the first lumbar vertebra level, and laboratory tests performed at diagnosis, were used to calculate SMD and NLR. Prognostic values were estimated via univariate and multivariate logistic regression analyses and the Kaplan–Meier curve. The study was approved by the local Institutional Review Board (CAAE 36276620.2.0000.5404). A total of 200 patients were included. Among the patients assessed, median age was 59 years, 58% were men and 45% required ICU care. A total of 45 (22.5%) patients died. Multivariate logistic analysis demonstrated that a low SMD (OR 2.94; 95% CI 1.13–7.66, P = 0.027), high NLR (OR 3.96; 95% CI 1.24–12.69, P = 0.021) and both low SMD and high NLR (OR 25.58; 95% CI 2.37–276.71, P = 0.008) combined, were associated with an increased risk of death. Patients who had both low SMD and high NLR required more mechanical ventilation (P < 0.001) and were hospitalized for a longer period (P < 0.001). Low SMD, high NLR and the composite score can predict poor prognosis in patients with COVID-19, and can be used as a tool for early identification of patients at risk. Systemic inflammation and low muscle radiodensity are useful predictors of poor prognosis, and the assessment of these factors in clinical practice should be considered.
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105
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Cho Y, Chang Y, Ryu S, Jung H, Kim C, Oh H, Kim MK, Sohn W, Shin H, Wild SH, Byrne CD. Skeletal muscle mass to visceral fat area ratio as a predictor of NAFLD in lean and overweight men and women with effect modification by sex. Hepatol Commun 2022; 6:2238-2252. [PMID: 35503803 PMCID: PMC9426405 DOI: 10.1002/hep4.1975] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 12/12/2022] Open
Abstract
The effect of sarcopenic visceral obesity on the risk of nonalcoholic fatty liver disease (NAFLD) is uncertain. We investigated (a) whether the skeletal muscle mass to visceral fat area ratio (SV ratio), as a measure of sarcopenic visceral obesity, is a risk factor for NAFLD; and (b) whether the SV ratio adds to conventional adiposity measures to improve prediction of incident NAFLD. Adults without NAFLD (n = 151,017) were followed up for a median of 3.7 years. Hepatic steatosis was measured using ultrasonography, and liver fibrosis scores were estimated using the Fibrosis-4 index (FIB-4) and the NAFLD Fibrosis Score (NFS). Cox proportional hazards models were used to determine sex-specific adjusted hazard ratios (aHRs) (95% confidence intervals [CIs]). The incremental predictive performance was assessed using the area under the receiver operating characteristic curve, net reclassification improvement, and integrated discrimination improvement. Multivariable aHRs (95% CIs) for incident NAFLD comparing the lowest versus the highest quintile of SV ratio were 3.77 (3.56-3.99) for men and 11.69 (10.46-13.06) for women (p-interaction by sex < 0.001). For incident NAFLD with intermediate/high FIB-4, aHRs were 2.83 (2.19-3.64) for men and 7.96 (3.85-16.44) for women (similar results were obtained for NFS). Associations remained significant even after adjustment for body mass index, waist circumference, and time-varying covariates. These associations were also more pronounced in nonobese than obese participants (p-interaction < 0.001). The addition of SV ratio to conventional adiposity measures modestly improved risk prediction for incident NAFLD. SV ratio was inversely associated with risk of developing NAFLD, with effect modification by sex and obesity. Conclusion: Low SV ratio is a complementary index to conventional adiposity measures in the evaluation of NAFLD risk.
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Affiliation(s)
- Yoosun Cho
- Total Healthcare CenterKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Yoosoo Chang
- Center for Cohort StudiesKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Occupational and Environmental MedicineKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Clinical Research Design & EvaluationSamsung Advanced Institute for Health Sciences & TechnologySungkyunkwan UniversitySeoulRepublic of Korea
| | - Seungho Ryu
- Center for Cohort StudiesKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Occupational and Environmental MedicineKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Clinical Research Design & EvaluationSamsung Advanced Institute for Health Sciences & TechnologySungkyunkwan UniversitySeoulRepublic of Korea
| | - Hyun‐Suk Jung
- Total Healthcare CenterKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Chan‐won Kim
- Total Healthcare CenterKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Hyungseok Oh
- Total Healthcare CenterKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Mi Kyung Kim
- Department of Preventive MedicineCollege of MedicineHanyang UniversitySeoulRepublic of Korea
| | - Won Sohn
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulSouth Korea
| | - Hocheol Shin
- Center for Cohort StudiesKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Family MedicineKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | | | - Christopher D. Byrne
- Nutrition and MetabolismFaculty of MedicineUniversity of SouthamptonSouthamptonUK
- National Institute for Health Research Southampton Biomedical Research CenterUniversity Hospital SouthamptonSouthamptonUK
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106
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Cancer Cachexia: Signaling and Transcriptional Regulation of Muscle Catabolic Genes. Cancers (Basel) 2022; 14:cancers14174258. [PMID: 36077789 PMCID: PMC9454911 DOI: 10.3390/cancers14174258] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 02/08/2023] Open
Abstract
Simple Summary An uncontrollable loss in the skeletal muscle of cancer patients which leads to a significant reduction in body weight is clinically referred to as cancer cachexia (CC). While factors derived from the tumor environment which trigger various signaling pathways have been identified, not much progress has been made clinically to effectively prevent muscle loss. Deeper insights into the transcriptional and epigenetic regulation of muscle catabolic genes may shed light on key regulators which can be targeted to develop new therapeutic avenues. Abstract Cancer cachexia (CC) is a multifactorial syndrome characterized by a significant reduction in body weight that is predominantly caused by the loss of skeletal muscle and adipose tissue. Although the ill effects of cachexia are well known, the condition has been largely overlooked, in part due to its complex etiology, heterogeneity in mediators, and the involvement of diverse signaling pathways. For a long time, inflammatory factors have been the focus when developing therapeutics for the treatment of CC. Despite promising pre-clinical results, they have not yet advanced to the clinic. Developing new therapies requires a comprehensive understanding of how deregulated signaling leads to catabolic gene expression that underlies muscle wasting. Here, we review CC-associated signaling pathways and the transcriptional cascade triggered by inflammatory cytokines. Further, we highlight epigenetic factors involved in the transcription of catabolic genes in muscle wasting. We conclude with reflections on the directions that might pave the way for new therapeutic approaches to treat CC.
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107
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Inflammation: Roles in Skeletal Muscle Atrophy. Antioxidants (Basel) 2022; 11:antiox11091686. [PMID: 36139760 PMCID: PMC9495679 DOI: 10.3390/antiox11091686] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 12/03/2022] Open
Abstract
Various diseases can cause skeletal muscle atrophy, usually accompanied by inflammation, mitochondrial dysfunction, apoptosis, decreased protein synthesis, and enhanced proteolysis. The underlying mechanism of inflammation in skeletal muscle atrophy is extremely complex and has not been fully elucidated, thus hindering the development of effective therapeutic drugs and preventive measures for skeletal muscle atrophy. In this review, we elaborate on protein degradation pathways, including the ubiquitin-proteasome system (UPS), the autophagy-lysosome pathway (ALP), the calpain and caspase pathways, the insulin growth factor 1/Akt protein synthesis pathway, myostatin, and muscle satellite cells, in the process of muscle atrophy. Under an inflammatory environment, various pro-inflammatory cytokines directly act on nuclear factor-κB, p38MAPK, and JAK/STAT pathways through the corresponding receptors, and then are involved in muscle atrophy. Inflammation can also indirectly trigger skeletal muscle atrophy by changing the metabolic state of other tissues or cells. This paper explores the changes in the hypothalamic-pituitary-adrenal axis and fat metabolism under inflammatory conditions as well as their effects on skeletal muscle. Moreover, this paper also reviews various signaling pathways related to muscle atrophy under inflammatory conditions, such as cachexia, sepsis, type 2 diabetes mellitus, obesity, chronic obstructive pulmonary disease, chronic kidney disease, and nerve injury. Finally, this paper summarizes anti-amyotrophic drugs and their therapeutic targets for inflammation in recent years. Overall, inflammation is a key factor causing skeletal muscle atrophy, and anti-inflammation might be an effective strategy for the treatment of skeletal muscle atrophy. Various inflammatory factors and their downstream pathways are considered promising targets for the treatment and prevention of skeletal muscle atrophy.
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108
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Liang Z, Zhang T, Liu H, Li Z, Peng L, Wang C, Wang T. Inflammaging: The ground for sarcopenia? Exp Gerontol 2022; 168:111931. [PMID: 35985553 DOI: 10.1016/j.exger.2022.111931] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/02/2022] [Accepted: 08/14/2022] [Indexed: 12/15/2022]
Abstract
Sarcopenia is a progressive skeletal muscle disease that occurs most commonly in the elderly population, contributing to increased costs and hospitalization. Exercise and nutritional therapy have been proven to be effective for sarcopenia, and some drugs can also alleviate declines in muscle mass and function due to sarcopenia. However, there is no specific pharmacological treatment for sarcopenia at present. This review will mainly discuss the relationship between inflammaging and sarcopenia. The increased secretion of proinflammatory cytokines with aging may be because of cellular senescence, immunosenescence, alterations in adipose tissue, damage-associated molecular patterns (DAMPs), and gut microbes due to aging. These sources of inflammaging can impact the sarcopenia process through direct or indirect pathways. Conversely, sarcopenia can also aggravate the process of inflammaging, creating a vicious cycle. Targeting sources of inflammaging can influence muscle function, which could be considered a therapeutic target for sarcopenia. Moreover, not only proinflammatory cytokines but also anti-inflammatory cytokines can influence muscle and inflammation and participate in the progression of sarcopenia. This review focuses on the effects of TNF-α, IL-6, and IL-10, which can be detected in plasma. Therefore, clearing chronic inflammation by targeting proinflammatory cytokines (TNF-α, IL-1, IL-6) and the inflammatory pathway (JAK/STAT, autophagy, NF-κB) may be effective in treating sarcopenia.
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Affiliation(s)
- Zejun Liang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Tianxiao Zhang
- School of Healthcare Sciences, Cardiff University, Health Park, CF14 4XN Wales, UK
| | - Honghong Liu
- West China School of Nursing/West China Hospital, Sichuan University, NO.37 Alley, Chengdu 610041, Sichuan, PR China
| | - Zhenlin Li
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Lihong Peng
- Department of Rehabilitation Medicine, West China Second University Hospital, Sichuan University, PR China
| | - Changyi Wang
- Department of Rehabilitation Medicine, Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China; Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Tiantian Wang
- Department of Rehabilitation Medicine, Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China; Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China.
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109
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Flavanol-Rich Cocoa Supplementation Inhibits Mitochondrial Biogenesis Triggered by Exercise. Antioxidants (Basel) 2022; 11:antiox11081522. [PMID: 36009241 PMCID: PMC9405215 DOI: 10.3390/antiox11081522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 11/17/2022] Open
Abstract
The potential role of cocoa supplementation in an exercise context remains unclear. We describe the effects of flavanol-rich cocoa supplementation during training on exercise performance and mitochondrial biogenesis. Forty-two male endurance athletes at the beginning of the training season received either 5 g of cocoa (425 mg of flavanols) or maltodextrin (control) daily for 10 weeks. Two different doses of cocoa (equivalent to 5 g and 15 g per day of cocoa for a 70 kg person) were tested in a mouse exercise training study. In the athletes, while both groups had improved exercise performance, the maximal aerobic speed increased only in the control group. A mitochondrial DNA analysis revealed that the control group responded to training by increasing the mitochondrial load whereas the cocoa group showed no increase. Oxidative stress was lower in the cocoa group than in the control group, together with lower interleukin-6 levels. In the muscle of mice receiving cocoa, we corroborated an inhibition of mitochondrial biogenesis, which might be mediated by the decrease in the expression of nuclear factor erythroid-2-related factor 2. Our study shows that supplementation with flavanol-rich cocoa during the training period inhibits mitochondrial biogenesis adaptation through the inhibition of reactive oxygen species generation without impacting exercise performance.
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110
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Effects of losartan and exercise on muscle mass and exercise endurance of old mice. Exp Gerontol 2022; 165:111869. [PMID: 35710057 DOI: 10.1016/j.exger.2022.111869] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/29/2022] [Accepted: 06/08/2022] [Indexed: 11/04/2022]
Abstract
This study evaluated the effects of angiotensin II type I receptor blocker (ARB) on muscle mass and exercise capacity in healthy older animals. The effects of combined ARB and exercise training were also determined. Eighty 18-month-old mice were randomized into the control group (C), exercise group (E), losartan group (L) and losartan plus exercise group (LE). Mice in the L and LE groups received losartan from drinking water every day. Mice in the E and LE groups trained on a treadmill 30 min per day, 3 days per week for 4 months. Exercise endurance and spontaneous physical activity of mice were measured at baseline and monthly for 4 months. After 4 months of intervention, serum interleukin-6 (IL-6) levels, muscle mass, and muscle fiber cross sectional area (CSA) were measured. Total antioxidant capacity (TAC), lipid peroxidation and IL-6 levels were determined in quadriceps. We found that exercise endurance only increased in the E and LE groups. Muscle TAC levels of E, L, and LE groups were greater than that in the C group. Serum IL-6 and lipid peroxidation levels were not different among groups. LE group, but not E and L groups, had greater muscle mass, larger muscle fiber CSA, and greater muscle IL-6 levels than that in the C group after 4 months of intervention. These results suggest that losartan promotes the adaptions of muscle mass with exercise training in healthy older animals.
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Zhang L, Li M, Wang W, Yu W, Liu H, Wang K, Chang M, Deng C, Ji Y, Shen Y, Qi L, Sun H. Celecoxib alleviates denervation-induced muscle atrophy by suppressing inflammation and oxidative stress and improving microcirculation. Biochem Pharmacol 2022; 203:115186. [PMID: 35882305 DOI: 10.1016/j.bcp.2022.115186] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/16/2022] [Accepted: 07/19/2022] [Indexed: 11/25/2022]
Abstract
The molecular mechanism underlying denervation-induced muscle atrophy is complex and incompletely understood. Our previous results suggested that inflammation may play an important role in the early stages of muscle atrophy. Celecoxib is reported to exert anti-inflammatory effects. Here, we explored the effect of celecoxib on denervation-induced muscle atrophy and sought to identify the mechanism involved. We found that celecoxib treatment significantly increased the wet weight ratio and CSA of the tibialisanteriormuscle. Additionally, celecoxib downregulated the levels of COX-2, inflammatory factors and reduced inflammatory cell infiltration. GO and KEGG pathway enrichment analysis indicated that after 3 days of celecoxib treatment in vivo, the differentially expressed genes (DEGs) were mainly associated with the regulation of immune responses related to complement activation; after 14 days, the DEGs were mainly involved in the regulation of oxidative stress and inflammation-related responses. Celecoxib administration reduced the levels of ROS and oxidative stress-related proteins. Furthermore, we found that celecoxib treatment inhibited the denervation-induced up-regulation of the ubiquitin-proteasome and autophagy-lysosomal systems related proteins; decreased mitophagy in target muscles; and increased levels of MHC. Finally, celecoxib also attenuated microvascular damage in denervated skeletal muscle. Combined, our findings demonstrated that celecoxib inhibits inflammation and oxidative stress in denervated skeletal muscle, thereby suppressing mitophagy and proteolysis, improving blood flow in target muscles, and, ultimately, alleviating denervation-induced muscle atrophy. Our results confirmed that inflammatory responses play a key role in denervation-induced muscle atrophy and highlight a novel strategy for the prevention and treatment of this condition.
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Affiliation(s)
- Lilei Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China
| | - Ming Li
- Department of Laboratory Medicine, Department of Endocrinology, Binhai County People's Hospital affiliated to Kangda College of Nanjing Medical University, Yancheng, Jiangsu Province 224500, P. R. China
| | - Wei Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China; Department of Pathology, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, P. R. China
| | - Weiran Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China
| | - Hua Liu
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, 55 Ninghai Middle Road, Haian, Nantong, Jiangsu Province 226600, P. R. China
| | - Kexin Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China
| | - Mengyuan Chang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China
| | - Chunyan Deng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China
| | - Yanan Ji
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China.
| | - Lei Qi
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province 226001, P. R. China.
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, 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, Jiangsu Province 226001, P. R. China.
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Hein TR, Peterson L, Bartikoski BJ, Portes J, Espírito Santo RC, Xavier RM. The effect of disease-modifying anti-rheumatic drugs on skeletal muscle mass in rheumatoid arthritis patients: a systematic review with meta-analysis. Arthritis Res Ther 2022; 24:171. [PMID: 35854372 PMCID: PMC9295282 DOI: 10.1186/s13075-022-02858-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/30/2022] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Rheumatoid arthritis (RA) is an autoimmune disease, characterized by chronic and systemic inflammation. Besides, it is known that RA patients may present several comorbidities, such as sarcopenia, a condition where patients present both muscle mass and muscle quality impairment. RA treatment is mostly pharmacological and consists in controlling systemic inflammation and disease activity. Despite that, the effect of pharmacological treatment on sarcopenia is not well characterized. OBJECTIVE To summarize the effects of disease-modifying anti-rheumatic drugs (DMARDs) on skeletal muscle tissue in rheumatoid arthritis (RA) patients. METHODS A systematic review of randomized clinical trials and observational studies was conducted using MEDLINE, Embase, Cochrane Library, and Web of Science. We selected studies with rheumatoid arthritis patients treated with disease-modifying anti-rheumatic drugs (DMARDs) that analyzed muscle mass parameters such as lean mass and appendicular lean mass. Methodological quality was assessed using the Newcastle-Ottawa Quality Assessment Scale. Standardized mean difference (SMD) and 95% confidence intervals (CI) were set. A meta-analysis of observational studies was performed using the R software, and we considered significant statistics when p < 0.05. RESULTS Nine studies were included in this systematic review. In the meta-analysis, DMARD treatment had no positive difference (p = 0.60) in lean mass. In the same way, in the appendicular lean mass parameter, our results showed that DMARDs did not have changes between baseline and post-treatment analysis (p = 0.93). CONCLUSION There is no evidence of a significant effect of DMARD therapy, either synthetic or biological, on muscle mass. However, this association should be investigated with more studies.
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Affiliation(s)
- Thales R Hein
- Universidade Federal do Rio Grande do Sul, Rheumatology, Rua Ramiro Barcelos, 2350, Porto Alegre, RS, 90035-903, Brazil.
| | - Leonardo Peterson
- Universidade Federal do Rio Grande do Sul, Rheumatology, Rua Ramiro Barcelos, 2350, Porto Alegre, RS, 90035-903, Brazil
| | - Barbara J Bartikoski
- Universidade Federal do Rio Grande do Sul, Rheumatology, Rua Ramiro Barcelos, 2350, Porto Alegre, RS, 90035-903, Brazil
| | - Juliana Portes
- Universidade Federal do Rio Grande do Sul, Rheumatology, Rua Ramiro Barcelos, 2350, Porto Alegre, RS, 90035-903, Brazil
| | - Rafaela C Espírito Santo
- Universidade Federal do Rio Grande do Sul, Rheumatology, Rua Ramiro Barcelos, 2350, Porto Alegre, RS, 90035-903, Brazil
| | - Ricardo M Xavier
- Universidade Federal do Rio Grande do Sul, Rheumatology, Rua Ramiro Barcelos, 2350, Porto Alegre, RS, 90035-903, Brazil
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Forcina L, Franceschi C, Musarò A. The hormetic and hermetic role of IL-6. Ageing Res Rev 2022; 80:101697. [PMID: 35850167 DOI: 10.1016/j.arr.2022.101697] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/24/2022] [Accepted: 07/14/2022] [Indexed: 02/07/2023]
Abstract
Interleukin-6 is a pleiotropic cytokine regulating different tissues and organs in diverse and sometimes discrepant ways. The dual and sometime hermetic nature of IL-6 action has been highlighted in several contexts and can be explained by the concept of hormesis, in which beneficial or toxic effects can be induced by the same molecule depending on the intensity, persistence, and nature of the stimulation. According with hormesis, a low and/or controlled IL-6 release is associated with anti-inflammatory, antioxidant, and pro-myogenic actions, whereas increased systemic levels of IL-6 can induce pro-inflammatory, pro-oxidant and pro-fibrotic responses. However, many aspects regarding the multifaceted action of IL-6 and the complex nature of its signal transduction remains to be fully elucidated. In this review we collect mechanistic insight into the molecular networks contributing to normal or pathologic changes during advancing age and in chronic diseases. We point out the involvement of IL-6 deregulation in aging-related diseases, dissecting the hormetic action of this key mediator in different tissues, with a special focus on skeletal muscle. Since IL-6 can act as an enhancer of detrimental factor associated with both aging and pathologic conditions, such as chronic inflammation and oxidative stress, this cytokine could represent a "Gerokine", a determinant of the switch from physiologic aging to age-related diseases.
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Affiliation(s)
- Laura Forcina
- DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Via A. Scarpa, 14, Rome 00161, Italy.
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.
| | - Antonio Musarò
- DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Scuola Superiore di Studi Avanzati Sapienza (SSAS), Via A. Scarpa, 14, Rome 00161, Italy.
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Huang Q, Wu M, Wu X, Zhang Y, Xia Y. Muscle-to-tumor crosstalk: The effect of exercise-induced myokine on cancer progression. Biochim Biophys Acta Rev Cancer 2022; 1877:188761. [PMID: 35850277 DOI: 10.1016/j.bbcan.2022.188761] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 02/07/2023]
Abstract
Physical exercise has gradually become a focus in cancer treatment due to its pronounced role in reducing cancer risk, enhancing therapeutic efficacy, and improving prognosis. In recent decades, skeletal muscles have been considered endocrine organs, exerting their biological functions via the endocrine, autocrine, and paracrine systems by secreting various types of myokines. The amount of myokines secreted varies depending on the intensity, type, and duration of exercise. Recent studies have shown that muscle-derived myokines are highly involved the effects of exercise on cancer. Multiple myokines, such as interleukin-6 (IL-6), oncostatin M (OSM), secreted protein acidic and rich in cysteine (SPARC), and irisin, directly mediate cancer progression by influencing the proliferation, apoptosis, stemness, drug resistance, metabolic reprogramming, and epithelial-mesenchymal transformation (EMT) of cancer cells. In addition, IL-6, interleukin-8 (IL-8), interleukin-15 (IL-15), brain-derived neurotrophic factor (BDNF), and irisin can improve obesity-induced inflammation by stimulating lipolysis of adipose tissues, promoting glucose uptake, and accelerating the browning of white fat. Furthermore, some myokines could regulate the tumor microenvironment, such as angiogenesis and the immune microenvironment. Cancer cachexia occurs in up to 80% of cancer patients and is responsible for 22%-30% of patient deaths. It is characterized by systemic inflammation and decreased muscle mass. Exercise-induced myokine production is important in regulating cancer cachexia. This review summarizes the roles and underlying mechanisms of myokines, such as IL-6, myostatin, IL-15, irisin, fibroblast growth factor 21 (FGF21) and musclin, in cancer cachexia. Through comprehensive analysis, we conclude that myokines are potential targets for inhibiting cancer progression and the associated cachexia.
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Affiliation(s)
- Qianrui Huang
- Department of Rehabilitation Medicine, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Mengling Wu
- Department of Rehabilitation Medicine, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuyi Wu
- Department of Rehabilitation Medicine, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Rehabilitation Medicine in Sichuan Province/Rehabilitation Medicine Research Institute, Chengdu 610041, China
| | - Yiwen Zhang
- Department of Rehabilitation Medicine, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Yong Xia
- Department of Rehabilitation Medicine, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Rehabilitation Medicine in Sichuan Province/Rehabilitation Medicine Research Institute, Chengdu 610041, China.
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Vachher M, Bansal S, Kumar B, Yadav S, Arora T, Wali NM, Burman A. Contribution of organokines in the development of NAFLD/NASH associated hepatocellular carcinoma. J Cell Biochem 2022; 123:1553-1584. [PMID: 35818831 DOI: 10.1002/jcb.30252] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/17/2022] [Accepted: 03/29/2022] [Indexed: 12/16/2022]
Abstract
Globally the incidence of hepatocellular carcinoma (HCC) is on an upsurge. Evidence is accumulating that liver disorders like nonalcoholic fatty liver disease (NAFLD) and its more progressive form nonalcoholic steatohepatitis (NASH) are associated with increased risk of developing HCC. NAFLD has a prevalence of about 25% and 50%-90% in obese population. With the growing burden of obesity epidemic worldwide, HCC presents a major healthcare burden. While cirrhosis is one of the major risk factors of HCC, available literature suggests that NAFLD/NASH associated HCC also develops in minimum or noncirrhotic livers. Therefore, there is an urgent need to understand the pathogenesis and risk factors associated with NAFLD and NASH related HCC that would help in early diagnosis and favorable prognosis of HCC secondary to NAFLD. Adipokines, hepatokines and myokines are factors secreted by adipocytes, hepatocytes and myocytes, respectively, playing essential roles in cellular homeostasis, energy balance and metabolism with autocrine, paracrine and endocrine effects. In this review, we endeavor to focus on the role of these organokines in the pathogenesis of NAFLD/NASH and its progression to HCC to augment the understanding of the factors stimulating hepatocytes to acquire a malignant phenotype. This shall aid in the development of novel therapeutic strategies and tools for early diagnosis of NAFLD/NASH and HCC.
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Affiliation(s)
- Meenakshi Vachher
- Department of Biochemistry, Institute of Home Economics, University of Delhi, Delhi, India
| | - Savita Bansal
- Department of Biochemistry, Institute of Home Economics, University of Delhi, Delhi, India
| | - Bhupender Kumar
- Department of Biochemistry, Institute of Home Economics, University of Delhi, Delhi, India
| | - Sandeep Yadav
- Department of Biochemistry, Institute of Home Economics, University of Delhi, Delhi, India
| | - Taruna Arora
- Department of Biochemistry, Institute of Home Economics, University of Delhi, Delhi, India
| | - Nalini Moza Wali
- Department of Biochemistry, Institute of Home Economics, University of Delhi, Delhi, India
| | - Archana Burman
- Department of Biochemistry, Institute of Home Economics, University of Delhi, Delhi, India
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Suzuki T, Shimizu M, Yamauchi Y, Sato R. Nobiletin enhances plasma Interleukin-6 and C-X-C motif chemokine ligand 1 levels that are increased by treadmill running. Food Sci Nutr 2022; 10:2360-2369. [PMID: 35844904 PMCID: PMC9281940 DOI: 10.1002/fsn3.2844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 12/04/2022] Open
Abstract
Exercise increases the muscular secretion of Interleukin-6 (IL-6), which is partially regulated by β2-adrenergic receptor signaling. Nobiletin is a polymethoxyflavone (PMF) found in citrus fruits that induces the secretion of IL-6 from C2C12 myotubes, but it remains unclear whether nobiletin promotes IL-6 secretion during exercise. The aim of this study was to clarify the effects of nobiletin on IL-6 secretion during exercise. Nobiletin and epinephrine were found to synergistically increase IL-6 secretion from differentiated C2C12 cells, which was suppressed by the inhibition of adenylyl cyclase (AC) or protein kinase A (PKA). Treadmill running for 60 min increased plasma levels of IL-6, epinephrine, and norepinephrine in rats. Nobiletin (5 mg/kg) orally administered 30 min before running increased plasma IL-6 levels further, although it did not increase plasma epinephrine and norepinephrine. In a similar manner to IL-6, nobiletin and epinephrine synergistically increased the secretion of C-X-C motif chemokine ligand 1 (CXCL-1) from C2C12 cells, or the increase in plasma CXCL-1 was enhanced by nobiletin after treadmill running of rats. Our results suggest that nobiletin promotes IL-6 and CXCL-1 secretion from skeletal muscle by synergistic enhancement of the PKA pathway in β2-adrenergic receptor signaling.
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Affiliation(s)
- Toshihide Suzuki
- Nutri‐Life Science LaboratoryDepartment of Applied Biological ChemistryGraduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Makoto Shimizu
- Nutri‐Life Science LaboratoryDepartment of Applied Biological ChemistryGraduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Yoshio Yamauchi
- Nutri‐Life Science LaboratoryDepartment of Applied Biological ChemistryGraduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
- Food Biochemistry LaboratoryDepartment of Applied Biological ChemistryGraduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Ryuichiro Sato
- Nutri‐Life Science LaboratoryDepartment of Applied Biological ChemistryGraduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
- Food Biochemistry LaboratoryDepartment of Applied Biological ChemistryGraduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
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Hostrup M, Knudsen JG, Kristensen CM, Jessen S, Pilegaard H, Bangsbo J. Beta 2 -agonist increases skeletal muscle interleukin 6 production and release in response to resistance exercise in men. Scand J Med Sci Sports 2022; 32:1099-1108. [PMID: 35460295 PMCID: PMC9545867 DOI: 10.1111/sms.14171] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Several tissues produce and release interleukin-6 (IL-6) in response to beta2 -adrenergic stimulation with selective agonists (beta2 -agonists). Moreover, exercise stimulates muscle IL-6 production, but whether beta2 -agonists regulate skeletal muscle production and release of IL-6 in humans in association with exercise remains to be clarified. Thus, we investigated leg IL-6 release in response to beta2 -agonist salbutamol in lean young men at rest and in recovery from resistance exercise. DESIGN The study employed a randomized controlled crossover design, where 12 men ingested either salbutamol (16 mg) or placebo for 4 days, followed by the last dose (24 mg) administered 1½ h before exercise. Arterial and femoral venous plasma IL-6 as well as femoral artery blood flow was measured before and ½-5 h in recovery from quadriceps muscle resistance exercise. Furthermore, vastus lateralis muscle biopsies were collected ½ and 5 h after exercise for determination of mRNA levels of IL-6 and Tumor Necrosis Factor (TNF)-α. RESULTS Average leg IL-6 release was 1.7-fold higher (p = 0.01) for salbutamol than placebo, being 138 ± 76 and 79 ± 66 pg min-1 (mean ± SD) for salbutamol and placebo, respectively, but IL-6 release was not significantly different between treatments within specific sampling points at rest and after exercise. Muscle IL-6 mRNA was 1.5- and 1.7-fold higher (p = 0.001) for salbutamol than placebo ½ and 5 h after exercise, respectively, whereas no significant treatment differences were observed for TNF-α mRNA. CONCLUSIONS Beta2 -adrenergic stimulation with high doses of the selective beta2 -agonist salbutamol, preceeded by 4 consecutive daily doses, induces transcription of IL-6 in skeletal muscle in response to resistance exercise, and increases muscle IL-6 release in lean individuals.
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Affiliation(s)
- Morten Hostrup
- August Krogh Section of Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Jakob Grunnet Knudsen
- Section for Cell Biology and Physiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Caroline Maag Kristensen
- Section for Cell Biology and Physiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Søren Jessen
- August Krogh Section of Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Henriette Pilegaard
- Section for Cell Biology and Physiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Jens Bangsbo
- August Krogh Section of Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
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de Sousa DFM, Malavazzi TCDS, Deana AM, Horliana ACRT, Fernandes KPS, Bussadori SK, Mesquita-Ferrari RA. Simultaneous red and infrared light-emitting diodes reduced pain in individuals with temporomandibular disorder: a randomized, controlled, double-blind, clinical trial. Lasers Med Sci 2022; 37:3423-3431. [PMID: 35751005 DOI: 10.1007/s10103-022-03600-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/19/2022] [Indexed: 12/22/2022]
Abstract
The aim of the present study was to evaluate the effects of photobiomodulation (PBM) with the simultaneous use of red and infrared LEDs on pain and mandibular range of motion in individuals with temporomandibular disorder (TMD). Eighteen participants were randomly allocated to an LED group or control group. The device had 18 red LEDs (660 nm) and 18 infrared LEDs (850 nm), with a total power irradiated of 126 mW and 75.6 J per point. The device was placed in the regions of the temporomandibular joint (TMJ) and masticatory muscles once per day three times per week for 2 weeks. Pain intensity was measured using the visual analog scale (VAS). Mandibular range of motion was determined using digital calipers and considering different conditions (unassisted opening without pain, maximum opening with and without assistance, right and left lateral movements, and protrusion). Evaluations were performed before treatment, immediately after the first LED irradiation session and at the end of six sessions. A significant reduction in pain intensity was found in the LED group at the end of treatment compared to the control group (p < 0.001) as well as in the comparison between the pretreatment and end of treatment evaluations (p < 0.001). Regarding mandibular movements, no statistically significant differences between the LED group and control group were found at the end of treatment for any of the conditions analyzed or in the comparison between the beginning and end of treatment with LED. Photobiomodulation using a cluster with red and infrared LEDs induced a reduction in pain in individuals with temporomandibular disorder but did not alter mandibular range of motion in these individuals. Trial registration number: NCT03696706; retrospectively registered (ClinicalTrials.gov).
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Affiliation(s)
- Dowglas Fernando Magalhães de Sousa
- Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, São Paulo, SP, 01525-000, Brazil
| | | | - Alessandro Melo Deana
- Postgraduate Program in Biophotonics Applied to the Health Sciences, UNINOVE, São Paulo, SP, Brazil
| | | | | | - Sandra Kalil Bussadori
- Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, São Paulo, SP, 01525-000, Brazil.,Postgraduate Program in Biophotonics Applied to the Health Sciences, UNINOVE, São Paulo, SP, Brazil
| | - Raquel Agnelli Mesquita-Ferrari
- Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, São Paulo, SP, 01525-000, Brazil. .,Postgraduate Program in Biophotonics Applied to the Health Sciences, UNINOVE, São Paulo, SP, Brazil.
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Baig MH, Ahmad K, Moon JS, Park SY, Ho Lim J, Chun HJ, Qadri AF, Hwang YC, Jan AT, Ahmad SS, Ali S, Shaikh S, Lee EJ, Choi I. Myostatin and its Regulation: A Comprehensive Review of Myostatin Inhibiting Strategies. Front Physiol 2022; 13:876078. [PMID: 35812316 PMCID: PMC9259834 DOI: 10.3389/fphys.2022.876078] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/06/2022] [Indexed: 12/12/2022] Open
Abstract
Myostatin (MSTN) is a well-reported negative regulator of muscle growth and a member of the transforming growth factor (TGF) family. MSTN has important functions in skeletal muscle (SM), and its crucial involvement in several disorders has made it an important therapeutic target. Several strategies based on the use of natural compounds to inhibitory peptides are being used to inhibit the activity of MSTN. This review delivers an overview of the current state of knowledge about SM and myogenesis with particular emphasis on the structural characteristics and regulatory functions of MSTN during myogenesis and its involvements in various muscle related disorders. In addition, we review the diverse approaches used to inhibit the activity of MSTN, especially in silico approaches to the screening of natural compounds and the design of novel short peptides derived from proteins that typically interact with MSTN.
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Affiliation(s)
- Mohammad Hassan Baig
- Department of Family Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Khurshid Ahmad
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, South Korea
| | - Jun Sung Moon
- Department of Internal Medicine, College of Medicine, Yeungnam University, Daegu, South Korea
| | - So-Young Park
- Department of Physiology, College of Medicine, Yeungnam University, Daegu, South Korea
| | - Jeong Ho Lim
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, South Korea
| | - Hee Jin Chun
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, South Korea
| | - Afsha Fatima Qadri
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
| | - Ye Chan Hwang
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
| | - Arif Tasleem Jan
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Syed Sayeed Ahmad
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
| | - Shahid Ali
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
| | - Sibhghatulla Shaikh
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
| | - Eun Ju Lee
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, South Korea
- *Correspondence: Eun Ju Lee, ; Inho Choi,
| | - Inho Choi
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, South Korea
- *Correspondence: Eun Ju Lee, ; Inho Choi,
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Cancer- and cardiac-induced cachexia: same fate through different inflammatory mediators? Inflamm Res 2022; 71:771-783. [PMID: 35680678 DOI: 10.1007/s00011-022-01586-y] [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: 11/17/2021] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Inflammation is widely recognized as the driving force of cachexia induced by chronic diseases; however, therapies targeting inflammation do not always reverse cachexia. Thus, whether inflammation per se plays an important role in the clinical course of cachectic patients is still a matter of debate. AIMS To give new insights into cachexia's pathogenesis and diagnosis, we performed a comprehensive literature search on the contribution of inflammatory markers to this syndrome, focusing on the noncommunicable diseases cancer and cardiovascular diseases. METHODS A systematic review was performed in PubMed using the keywords ("cancer" OR "cardiac" cachexia AND "human" OR "patient" AND "plasma" or "serum"). A total of 744 studies were retrieved and, from these, 206 were selected for full-text screening. In the end, 98 papers focusing on circulating biomarkers of cachexia were identified, which resulted in a list of 113 different mediators. RESULTS Data collected from the literature highlight the contribution of interleukin-6 (IL-6) and C-reactive protein (CRP) to cachexia, independently of the underlying condition. Despite not being specific, once the diagnosis of cachexia is established, CRP might help to monitor the effectiveness of anti-cachexia therapies. In cardiac diseases, B-type natriuretic peptide (BNP), renin, and obestatin might be putative markers of body wasting, whereas in cancer, growth differentiation factor (GDF) 15, transforming growth factor (TGF)-β1 and vascular endothelial growth factor (VEGF) C seem to be better markers of this syndrome. Independently of the circulating mediators, NF-κB and JAK/STAT signaling pathways play a key role in bridging inflammation with muscle wasting; however, therapies targeting these pathways were not proven effective for all cachectic patients. CONCLUSION The critical and integrative analysis performed herein will certainly feed future research focused on the better comprehension of cachexia pathogenesis toward the improvement of its diagnosis and the development of personalized therapies targeting specific cachexia phenotypes.
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Giron M, Thomas M, Dardevet D, Chassard C, Savary-Auzeloux I. Gut microbes and muscle function: can probiotics make our muscles stronger? J Cachexia Sarcopenia Muscle 2022; 13:1460-1476. [PMID: 35278043 PMCID: PMC9178375 DOI: 10.1002/jcsm.12964] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/07/2022] [Accepted: 02/03/2022] [Indexed: 12/20/2022] Open
Abstract
Evidence suggests that gut microbiota composition and diversity can be a determinant of skeletal muscle metabolism and functionality. This is true in catabolic (sarcopenia and cachexia) or anabolic (exercise or in athletes) situations. As gut microbiota is known to be causal in the development and worsening of metabolic dysregulation phenotypes such as obesity or insulin resistance, it can regulate, at least partially, skeletal muscle mass and function. Skeletal muscles are physiologically far from the gut. Signals generated by the gut due to its interaction with the gut microbiome (microbial metabolites, gut peptides, lipopolysaccharides, and interleukins) constitute links between gut microbiota activity and skeletal muscle and regulate muscle functionality via modulation of systemic/tissue inflammation as well as insulin sensitivity. The probiotics able to limit sarcopenia and cachexia or promote health performances in rodents are mainly lactic acid bacteria and bifidobacteria. In humans, the same bacteria have been tested, but the scarcity of the studies, the variability of the populations, and the difficulty to measure accurately and with high reproducibility muscle mass and function have not allowed to highlight specific strains able to optimize muscle mass and function. Further studies are required on more defined population, in order to design personalized nutrition. For elderly, testing the efficiency of probiotics according to the degree of frailty, nutritional state, or degree of sarcopenia before supplementation is essential. For exercise, selection of probiotics capable to be efficient in recreational and/or elite athletes, resistance, and/or endurance exercise would also require further attention. Ultimately, a combination of strategies capable to optimize muscle functionality, including bacteria (new microbes, bacterial ecosystems, or mix, more prone to colonize a specific gut ecosystem) associated with prebiotics and other 'traditional' supplements known to stimulate muscle anabolism (e.g. proteins), could be the best way to preserve muscle functionality in healthy individuals at all ages or patients.
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Affiliation(s)
- Muriel Giron
- Université Clermont Auvergne, INRAE, UNH, Clermont-Ferrand, France.,Université Paris-Saclay, INRAE UMR1319, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,INRAE UMR0545, Unité Mixte de Recherche sur le Fromage, Aurillac, France
| | - Muriel Thomas
- Université Paris-Saclay, INRAE UMR1319, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
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Silva SB, Honorato-Sampaio K, Costa SP, Domingues TE, da Cruz TMM, Rodrigues CM, Costa KB, Dos Santos JM, da Silva Lage VK, Gaiad TP, Santos AP, Dias-Peixoto MF, Coimbra CC, Dos Reis AM, Szawka RE, Figueiredo PHS, Costa HS, Oliveira MX, Mendonça VA, Lacerda ACR. The superior beneficial effects of exercise training versus hormone replacement therapy on skeletal muscle of ovariectomized rats. Sci Rep 2022; 12:8764. [PMID: 35610295 PMCID: PMC9130272 DOI: 10.1038/s41598-022-12739-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/06/2022] [Indexed: 12/31/2022] Open
Abstract
Previous studies have highlighted the positive effects of Estradiol (E2) replacement therapy and physical exercise on skeletal muscle during menopause. However, the comparison effects of exercise training (ET) and estradiol replacement therapy during menopause on skeletal muscle have not been investigated to date. This study aimed to compare the effects of endurance exercise training versus E2 replacement therapy on mitochondrial density, redox status, and inflammatory biomarkers in the skeletal muscle of ovariectomized rats. Thirty female Wistar rats (12-week-old) were randomly assigned into three groups: Untrained ovariectomized rats (UN-OVX, n = 10); untrained ovariectomized rats treated with estradiol replacement therapy (E2-OVX); and, trained ovariectomized rats (TR-OVX). After ovariectomy, the E2-OVX rats were treated subcutaneously with E2 (implanted Silastic® capsule containing 360 μg of 17β-estradiol/mL) while the TR-OVX group performed an exercise training protocol (50–70% of maximal running speed on a treadmill, 60 min/day, 5 days/week for 8 weeks). After euthanasia, the soleus muscle was processed for histological and biochemical evaluations. Only exercise prevented the reduction of maximal oxygen consumption and increased mechanical efficiency (ME). While mitochondrial muscle density, total antioxidant capacity (FRAP), catalase (CAT) activity, and interleukin 10 levels were higher in TR-OVX, only OVX-E2 presented higher CAT activity and lower interleukin 6 levels. Endurance exercise training compared with E2 replacement therapy maintains the aerobic capacity improving the ME of OVX rats. In addition, only endurance exercise training raises the skeletal muscle mitochondrial content and tends to balance the redox and inflammatory status in the skeletal muscle of OVX rats.
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Affiliation(s)
- Sara Barros Silva
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil.,Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Kinulpe Honorato-Sampaio
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil.,Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Sabrina Paula Costa
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Talita Emanuela Domingues
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil
| | - Timilly Mayra Martins da Cruz
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Cíntia Maria Rodrigues
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil
| | - Karine Beatriz Costa
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil
| | - Jousielle Márcia Dos Santos
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil
| | - Vanessa Kelly da Silva Lage
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil
| | - Thais Peixoto Gaiad
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Ana Paula Santos
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Marco Fabrício Dias-Peixoto
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil.,Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Cândido Celso Coimbra
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Adelina Martha Dos Reis
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Raphael Escorsim Szawka
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Pedro Henrique Scheidt Figueiredo
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil.,Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Henrique Silveira Costa
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil.,Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Murilo Xavier Oliveira
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil.,Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Vanessa Amaral Mendonça
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil.,Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil.,Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil
| | - Ana Cristina Rodrigues Lacerda
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Campus JK-Highway MGT-367-Km 583, N°. 5000-Alto da Jacuba, Diamantina, 39100-000, Brazil. .,Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil. .,Programa Multicêntrico de Pós-graduação Multicêntrico em Ciências Fisiológicas (PPGMCF), Sociedade Brasileira de Fisiologia (SBFis), Diamantina, Brazil. .,Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil. .,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil.
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Jouffroy R, Anglicheau D, Mansencal N, Toussaint JF, Antero J. Relationship between Exercise Intensity and IL-6 Increase during an 80 km Long-Distance Running Race. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116368. [PMID: 35681953 PMCID: PMC9179966 DOI: 10.3390/ijerph19116368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 12/10/2022]
Abstract
Background: IL-6 plasma concentration (IL-6PC) reflects the systemic inflammation related to exercise intensity level. This study aims to describe the IL-6PC kinetics during a long-distance running race. IL-6PC was measured in 20 male runners before (0 km), at each refreshment point (at 21 and 53 km, i.e., k21 and k53, respectively) and at the end of an 80 km long-distance run (k80). Methods: IL-6PC variations (absolute and relative values in each of the three sections (S)) were calculated over S1 (0_k21), S2 (k21_k53) and S3 (k53_k80) and compared with the exercise intensity (duration*race speed) within each section. Results: The mean IL-6PC increased during the run: 2.1 ± 0.6 ng.L−1 at 0 km, 21.0 ± 11.3 ng.L−1 at k21, 38.9 ± 13.0 ng.L−1 at k53 and 49.8 ± 11.9 ng.L−1 at k80. Exercise intensity increased between S1 (24.2 ± 0.5) and S2 (51.9 ± 3.2) (p = 0.04) but not between S2 and S3 (67.4 ± 4.5) (p = 0.69). IL-6PC variation was associated with exercise intensity within S1 (p = 0.03) and S2 (p = 2 × 10−3) and showed at least a trend within S3 (p = 0.06). Conclusions: IL-6PC increases that occur during the early stages of a long-distance run are associated with the running intensity, and then IL-6PC remain stable after the reduction in intensity related to the decrease in running speed.
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Affiliation(s)
- Romain Jouffroy
- Intensive Care Unit, Ambroise Paré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), 92100 Boulogne-Billancourt, France
- IRMES—Institute for Research in Medicine and Epidemiology of Sport, INSEP, 75012 Paris, France; (J.F.T.); (J.A.)
- INSERM U-1018, Centre de Recherche en Epidémiologie et Santé des Populations, Paris Saclay University, 94800 Paris, France;
- URP 7329, Université de Paris, 75012 Paris, France
- Correspondence: ; Tel.: +33-0-149-095-601; Fax: +33-0-149-095-892
| | - Dany Anglicheau
- Necker-Enfants Malades Institute, French National Institute of Health and Medical Research U1151, 75015 Paris, France;
- Paris Descartes, Sorbonne Paris Cité University, 75006 Paris, France
- Department of Nephrology and Kidney Transplantation, Necker Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), 75015 Paris, France
| | - Nicolas Mansencal
- INSERM U-1018, Centre de Recherche en Epidémiologie et Santé des Populations, Paris Saclay University, 94800 Paris, France;
- Department of Cardiology, Ambroise Paré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Centre de Référence des Cardiomyopathies et des Troubles du Rythme Cardiaque Héréditaires Ou Rares, Université de Versailles-Saint Quentin (UVSQ), 92100 Boulogne, France
| | - Jean François Toussaint
- IRMES—Institute for Research in Medicine and Epidemiology of Sport, INSEP, 75012 Paris, France; (J.F.T.); (J.A.)
- URP 7329, Université de Paris, 75012 Paris, France
- Centre d’Investigations en Médecine du Sport, Hôtel-Dieu, Assistance Publique-Hôpitaux de Paris (AP-HP), 75004 Paris, France
| | - Juliana Antero
- IRMES—Institute for Research in Medicine and Epidemiology of Sport, INSEP, 75012 Paris, France; (J.F.T.); (J.A.)
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124
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Exercise Counteracts the Deleterious Effects of Cancer Cachexia. Cancers (Basel) 2022; 14:cancers14102512. [PMID: 35626116 PMCID: PMC9139714 DOI: 10.3390/cancers14102512] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary This review provides an overview of the effects of exercise training on the major mechanisms related to cancer cachexia (CC). The review also discusses how cancer comorbidities can influence the ability of patients/animals with cancer to perform exercise training and what precautions should be taken when they exercise. The contribution of other factors, such as exercise modality and biological sex, to exercise effectiveness in ameliorating CC are also elaborated in the final sections. We provide meticulous evidence for how advantageous exercise training can be in patients/animals with CC at molecular and cellular levels. Finally, we emphasise what factors should be considered to optimise and personalise an exercise training program in CC. Abstract Cancer cachexia (CC) is a multifactorial syndrome characterised by unintentional loss of body weight and muscle mass in patients with cancer. The major hallmarks associated with CC development and progression include imbalanced protein turnover, inflammatory signalling, mitochondrial dysfunction and satellite cell dysregulation. So far, there is no effective treatment to counteract muscle wasting in patients with CC. Exercise training has been proposed as a potential therapeutic approach for CC. This review provides an overview of the effects of exercise training in CC-related mechanisms as well as how factors such as cancer comorbidities, exercise modality and biological sex can influence exercise effectiveness in CC. Evidence in mice and humans suggests exercise training combats all of the hallmarks of CC. Several exercise modalities induce beneficial adaptations in patients/animals with CC, but concurrent resistance and endurance training is considered the optimal type of exercise. In the case of cancer patients presenting comorbidities, exercise training should be performed only under specific guidelines and precautions to avoid adverse effects. Observational comparison of studies in CC using different biological sex shows exercise-induced adaptations are similar between male and female patients/animals with cancer, but further studies are needed to confirm this.
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Abstract
The loss of skeletal muscle mass and size, or muscle atrophy, is a common human experience, linked to disability, for which there are no widely accepted pharmacological therapies. Piezo1 is a mechanosensitive cation channel that opens upon alteration of the plasma membrane lipid bilayer, such as through increased membrane tension. In this issue of the JCI, Hirata et al. identified Piezo1 and its downstream effectors, Krüppel-like factor 15 (KLF15) and interleukin-6 (IL-6), as an important signaling pathway in a murine model of disuse atrophy. Through genetic and pharmacological modulation of the pathway, the authors demonstrated that immobilization resulted in downregulation of Piezo1 and basal intracellular calcium concentration ([Ca2+]i), increasing expression of Klf15 and its downstream target Il6 and thereby inducing muscle atrophy. Piezo1 has been considered a therapeutic target for diverse disorders, including atherosclerosis and kidney fibrosis, and with this publication should now also be considered a viable target for disuse atrophy.
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Affiliation(s)
| | - Kathryn R. Wagner
- Product Development Neuroscience, F. Hoffmann-La Roche, Basel, Switzerland
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126
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Lombardo M, Feraco A, Bellia C, Prisco L, D’Ippolito I, Padua E, Storz MA, Lauro D, Caprio M, Bellia A. Influence of Nutritional Status and Physical Exercise on Immune Response in Metabolic Syndrome. Nutrients 2022; 14:nu14102054. [PMID: 35631195 PMCID: PMC9145042 DOI: 10.3390/nu14102054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/25/2022] Open
Abstract
Metabolic Syndrome (MetS) is a cluster of metabolic alterations mostly related to visceral adiposity, which in turn promotes glucose intolerance and a chronic systemic inflammatory state, characterized by immune cell infiltration. Such immune system activation increases the risk of severe disease subsequent to viral infections. Strong correlations between elevated body mass index (BMI), type-2-diabetes and increased risk of hospitalization after pandemic influenza H1N1 infection have been described. Similarly, a correlation between elevated blood glucose level and SARS-CoV-2 infection severity and mortality has been described, indicating MetS as an important predictor of clinical outcomes in patients with COVID-19. Adipose secretome, including two of the most abundant and well-studied adipokines, leptin and interleukin-6, is involved in the regulation of energy metabolism and obesity-related low-grade inflammation. Similarly, skeletal muscle hormones—called myokines—released in response to physical exercise affect both metabolic homeostasis and immune system function. Of note, several circulating hormones originate from both adipose tissue and skeletal muscle and display different functions, depending on the metabolic context. This review aims to summarize recent data in the field of exercise immunology, investigating the acute and chronic effects of exercise on myokines release and immune system function.
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Affiliation(s)
- Mauro Lombardo
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (A.F.); (L.P.); (E.P.); (M.C.); (A.B.)
- Correspondence:
| | - Alessandra Feraco
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (A.F.); (L.P.); (E.P.); (M.C.); (A.B.)
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Roma, 00166 Rome, Italy
| | - Chiara Bellia
- Department of Biomedicine, Neurosciences, and Advanced Diagnostics, University of Palermo, 90127 Palermo, Italy;
| | - Luigi Prisco
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (A.F.); (L.P.); (E.P.); (M.C.); (A.B.)
| | - Ilenia D’Ippolito
- Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (I.D.); (D.L.)
| | - Elvira Padua
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (A.F.); (L.P.); (E.P.); (M.C.); (A.B.)
- School of Human Movement Science, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Maximilian Andreas Storz
- Department of Internal Medicine II, Center for Complementary Medicine, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany;
| | - Davide Lauro
- Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (I.D.); (D.L.)
| | - Massimiliano Caprio
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (A.F.); (L.P.); (E.P.); (M.C.); (A.B.)
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Roma, 00166 Rome, Italy
| | - Alfonso Bellia
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (A.F.); (L.P.); (E.P.); (M.C.); (A.B.)
- Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (I.D.); (D.L.)
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Fortino SA, Wageh M, Pontello R, McGlory C, Kumbhare D, Phillips SM, Parise G. Sex-Based Differences in the Myogenic Response and Inflammatory Gene Expression Following Eccentric Contractions in Humans. Front Physiol 2022; 13:880625. [PMID: 35574443 PMCID: PMC9099417 DOI: 10.3389/fphys.2022.880625] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
After muscle injury, the interaction between muscle satellite cells (SC) and the immune response is instrumental for the repair and regeneration of skeletal muscle tissue. Studies have reported sex-based differences in the skeletal muscle inflammatory and regenerative response following injury. However, many of these studies investigated such differences by manipulating the concentration of estradiol, in rodents and humans, without directly comparing males to females. We sought to explore differences in the myogenic and inflammatory response following unaccustomed eccentric exercise in males and females. We hypothesized that females would have a blunted myogenic and inflammatory response as compared to males. Methods: 26 (13 male, 13 female) healthy young adults (22 ± 0.4 years [mean ± SEM]) performed 300 maximal eccentric contractions (180°/s) of the knee extensors. Muscle biopsies were taken before (pre) and 48 h (post) following eccentric damage. SC content and activation were determined by immunohistochemical and real time-polymerase chain reaction (rt-PCR) analysis. Inflammatory markers were analyzed using rt-PCR. Results: Following eccentric damage, males had a greater expansion of type I-associated SC (p < 0.05), and there was a trend for a greater expansion in total SC (type I + II fibers) (p = 0.06) compared to females. There was a trend for a greater increase in Pax7 and CCL2 gene expression in males compared to females (p = 0.09). Conclusion: We conclude that there are sex-based differences in the myogenic and inflammatory response, where females have a blunted SC and inflammatory response.
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Affiliation(s)
| | - Mai Wageh
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | - Riley Pontello
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | - Chris McGlory
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
- School of Kinesiology and Health Studies, Queen’s University, Kingston, ON, Canada
| | - Dinesh Kumbhare
- Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada
| | | | - Gianni Parise
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
- *Correspondence: Gianni Parise,
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IL-6 Deficiency Attenuates Skeletal Muscle Atrophy by Inhibiting Mitochondrial ROS Production through the Upregulation of PGC-1α in Septic Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9148246. [PMID: 35528525 PMCID: PMC9068301 DOI: 10.1155/2022/9148246] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/13/2022] [Accepted: 03/29/2022] [Indexed: 02/07/2023]
Abstract
Current evidences indicate that both inflammation and oxidative stress contribute to the pathogenesis of sepsis-associated skeletal muscle atrophy. However, the interaction between inflammation and oxidative stress has not been completely understood in sepsis-associated skeletal muscle atrophy. Here in the present study, a murine model of sepsis has been established by cecal ligation and puncture (CLP) with wild-type and interleukin- (IL-) 6 knockout (KO) mice. Our results suggested that IL-6 KO largely attenuated skeletal muscle atrophy as reflected by reduced protein degradation, increased cross-sectional area (CSA) of myofibers, and improved muscle contractile function (all
). In addition, we observed that IL-6 KO promoted the expression of peroxisome proliferator-activated receptor γ coactivator–1alpha (PGC–1α) and inhibited CLP-induced mitochondrial reactive oxygen species (ROS) production in skeletal muscles (all
). However, the knockdown of PGC–1α abolished the protective effects of IL-6 KO in CLP-induced skeletal muscle atrophy and reversed the changes in mitochondrial ROS production (all
). Ex vivo experiments found that exogenous IL-6 inhibited PGC–1α expression, promoted mitochondrial ROS production, and induced proteolysis in C2C12 cells (all
). Together, these results suggested that IL-6 deficiency attenuated skeletal muscle atrophy by inhibiting mitochondrial ROS production through the upregulation of PGC–1α expression in septic mice.
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Leuchtmann AB, Furrer R, Steurer SA, Schneider-Heieck K, Karrer-Cardel B, Sagot Y, Handschin C. Interleukin-6 potentiates endurance training adaptation and improves functional capacity in old mice. J Cachexia Sarcopenia Muscle 2022; 13:1164-1176. [PMID: 35191221 PMCID: PMC8978011 DOI: 10.1002/jcsm.12949] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/18/2022] [Accepted: 01/23/2022] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Interventions to preserve functional capacities at advanced age are becoming increasingly important. So far, exercise provides the only means to counteract age-related decrements in physical performance and muscle function. Unfortunately, the effectiveness of exercise interventions in elderly populations is hampered by reduced acceptance and compliance as well as disuse complications. We therefore studied whether application of interleukin-6 (IL-6), a pleiotropic myokine that is induced by skeletal muscle activity and exerts broad systemic effects in response to exercise, affects physical performance and muscle function alone or in combination with training in aged mice. METHODS Sedentary old male mice (Sed+Saline, n = 15) were compared with animals that received recombinant IL-6 (rIL-6) in an exercise-mimicking pulsatile manner (Sed+IL-6, n = 16), were trained with a moderate-intensity, low-volume endurance exercise regimen (Ex+Saline, n = 13), or were exposed to a combination of these two interventions (Ex+IL-6, n = 16) for 12 weeks. Before and at the end of the intervention, mice underwent a battery of tests to quantify endurance performance, muscle contractility in situ, motor coordination, and gait and metabolic parameters. RESULTS Mice exposed to enhanced levels of IL-6 during endurance exercise bouts showed superior improvements in endurance performance (33% more work and 12% greater peak power compared with baseline), fatigue resistance in situ (P = 0.0014 vs. Sed+Saline; P = 0.0199 vs. Sed+IL-6; and P = 0.0342 vs. Ex+Saline), motor coordination (rotarod performance, P = 0.0428), and gait (gait speed, P = 0.0053) following training. Pulsatile rIL-6 treatment in sedentary mice had only marginal effects on glucose tolerance and some gait parameters. No increase in adverse events or mortality related to rIL-6 treatment was observed. CONCLUSIONS Administration of rIL-6 paired with treadmill running bouts potentiates the adaptive response to a moderate-intensity low-volume endurance exercise regimen in old mice, while being safe and well tolerated.
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Affiliation(s)
| | | | | | | | | | - Yves Sagot
- Sonnet Biotherapeutics CH SA, Geneva, Switzerland
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130
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de Sousa Neto IV, da Cunha Nascimento D, Prestes J, da Fonseca EF, Celes RS, Rolnick N, de Sousa Barbalho YG, Silva ADO, Stival MM, de Lima LR, Funghetto SS. Initial Muscle Quality Affects Individual Responsiveness of Interleukin-6 and Creatine Kinase following Acute Eccentric Exercise in Sedentary Obese Older Women. BIOLOGY 2022; 11:biology11040537. [PMID: 35453736 PMCID: PMC9026080 DOI: 10.3390/biology11040537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/09/2022] [Accepted: 03/11/2022] [Indexed: 11/18/2022]
Abstract
This study aimed to evaluate the time course and responsiveness of plasma interleukin-6 (IL-6) and creatine kinase (CK) levels following acute eccentric resistance exercise in sedentary obese older women with a different muscle quality index (MQI). Eighty-eight participants (69.4 ± 6.06 years) completed an acute eccentric resistance exercise (7 sets of 10 repetitions at 110% of 10-repetition maximum with 3 min rest interval). Participants were divided into two groups: high or low MQI according to 50th percentile cut-off. The responsiveness was based on minimal clinical important difference. There were no differences between groups and time on IL-6 and CK levels (p > 0.05). However, the high MQI group displayed a lower proportion of low responders (1 for laboratory and 2 for field-based vs. 5 and 4) and a higher proportion of high responders for IL-6 (7 for laboratory and 6 for field-based vs. 4 and 5) compared to low MQI group. In addition, the high MQI group showed a higher proportion of high responders for CK (11 for laboratory and 9 for field-based vs. 6 and 6) compared to low MQI. A prior MQI screening can provide feedback to understand the magnitude response. Individual responsiveness should be taken into consideration for maximizing eccentric exercise prescription.
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Affiliation(s)
- Ivo Vieira de Sousa Neto
- Laboratory of Molecular Analysis, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil
- Graduate Program of Sciences and Technology of Health, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil; (Y.G.d.S.B.); (M.M.S.); (S.S.F.)
- Correspondence:
| | - Dahan da Cunha Nascimento
- Graduate Program of Physical Education, Catholic University of Brasilia, Brasilia 70910-900, Brazil; (D.d.C.N.); (J.P.); (E.F.d.F.); (R.S.C.)
| | - Jonato Prestes
- Graduate Program of Physical Education, Catholic University of Brasilia, Brasilia 70910-900, Brazil; (D.d.C.N.); (J.P.); (E.F.d.F.); (R.S.C.)
| | - Eduardo Fernandes da Fonseca
- Graduate Program of Physical Education, Catholic University of Brasilia, Brasilia 70910-900, Brazil; (D.d.C.N.); (J.P.); (E.F.d.F.); (R.S.C.)
| | - Rodrigo Souza Celes
- Graduate Program of Physical Education, Catholic University of Brasilia, Brasilia 70910-900, Brazil; (D.d.C.N.); (J.P.); (E.F.d.F.); (R.S.C.)
| | - Nicholas Rolnick
- The Human Performance Mechanic, Lehman College, New York, NY 10468, USA;
| | - Yuri Gustavo de Sousa Barbalho
- Graduate Program of Sciences and Technology of Health, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil; (Y.G.d.S.B.); (M.M.S.); (S.S.F.)
| | | | - Marina Morato Stival
- Graduate Program of Sciences and Technology of Health, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil; (Y.G.d.S.B.); (M.M.S.); (S.S.F.)
- Department of Nursing, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil;
| | - Luciano Ramos de Lima
- Department of Nursing, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil;
| | - Silvana Schwerz Funghetto
- Graduate Program of Sciences and Technology of Health, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil; (Y.G.d.S.B.); (M.M.S.); (S.S.F.)
- Department of Nursing, Faculty of Ceilândia, Universidade de Brasília, Brasilia 70910-900, Brazil;
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Hirata Y, Nomura K, Kato D, Tachibana Y, Niikura T, Uchiyama K, Hosooka T, Fukui T, Oe K, Kuroda R, Hara Y, Adachi T, Shibasaki K, Wake H, Ogawa W. A Piezo1/KLF15/IL-6 axis mediates immobilization-induced muscle atrophy. J Clin Invest 2022; 132:1-13. [PMID: 35290243 PMCID: PMC9159676 DOI: 10.1172/jci154611] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 03/01/2022] [Indexed: 11/17/2022] Open
Abstract
Although immobility is a common cause of muscle atrophy, the mechanism underlying this causality is unclear. We here show that Krüppel-like factor 15 (KLF15) and IL-6 are upregulated in skeletal muscle of limb-immobilized mice and that mice with KLF15 deficiency in skeletal muscle or with systemic IL-6 deficiency are protected from immobility-induced muscle atrophy. A newly developed Ca2+ bioimaging revealed that the cytosolic Ca2+ concentration ([Ca2+]i) of skeletal muscle is reduced to below the basal level by immobilization, which is associated with the downregulation of Piezo1. Acute disruption of Piezo1 in skeletal muscle induced Klf15 and Il6 expression as well as muscle atrophy, which was prevented by antibodies against IL-6. A role for the Piezo1/KLF15/IL-6 axis in immobility-induced muscle atrophy was validated in human samples. Our results thus uncover a paradigm for Ca2+ signaling in that a decrease in [Ca2+]i from the basal level triggers a defined biological event.
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Affiliation(s)
- Yu Hirata
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazuhiro Nomura
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Daisuke Kato
- Department of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshihisa Tachibana
- Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kana Uchiyama
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tetsuya Hosooka
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tomoaki Fukui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Keisuke Oe
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuji Hara
- Department of Integrative Physiology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Takahiro Adachi
- Department of Precision Health, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Koji Shibasaki
- Laboratory of Neurochemistry, Graduate School of Human Health Science, University of Nagasaki, Nagasaki, Japan
| | - Hiroaki Wake
- Department of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Wataru Ogawa
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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132
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Ruan T, Harney D, Koay YC, Loo L, Larance M, Caron L. Anabolic Factors and Myokines Improve Differentiation of Human Embryonic Stem Cell Derived Skeletal Muscle Cells. Cells 2022; 11:cells11060963. [PMID: 35326414 PMCID: PMC8946006 DOI: 10.3390/cells11060963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 02/04/2023] Open
Abstract
Skeletal muscle weakness is linked to many adverse health outcomes. Current research to identify new drugs has often been inconclusive due to lack of adequate cellular models. We previously developed a scalable monolayer system to differentiate human embryonic stem cells (hESCs) into mature skeletal muscle cells (SkMCs) within 26 days without cell sorting or genetic manipulation. Here, building on our previous work, we show that differentiation and fusion of myotubes can be further enhanced using the anabolic factors testosterone (T) and follistatin (F) in combination with a cocktail of myokines (C). Importantly, combined TFC treatment significantly enhanced both the hESC-SkMC fusion index and the expression levels of various skeletal muscle markers, including the motor protein myosin heavy chain (MyHC). Transcriptomic and proteomic analysis revealed oxidative phosphorylation as the most up-regulated pathway, and a significantly higher level of ATP and increased mitochondrial mass were also observed in TFC-treated hESC-SkMCs, suggesting enhanced energy metabolism is coupled with improved muscle differentiation. This cellular model will be a powerful tool for studying in vitro myogenesis and for drug discovery pertaining to further enhancing muscle development or treating muscle diseases.
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Affiliation(s)
- Travis Ruan
- Dr. John and Anne Chong Lab for Functional Genomics, Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (T.R.); (L.L.)
| | - Dylan Harney
- Larance Laboratory, Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (D.H.); (M.L.)
| | - Yen Chin Koay
- Cardiometabolic Disease Group, Heart Research Institute, Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia;
| | - Lipin Loo
- Dr. John and Anne Chong Lab for Functional Genomics, Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (T.R.); (L.L.)
| | - Mark Larance
- Larance Laboratory, Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (D.H.); (M.L.)
| | - Leslie Caron
- Dr. John and Anne Chong Lab for Functional Genomics, Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (T.R.); (L.L.)
- MMG, Marseille Medical Genetics, Aix Marseille Univ, INSERM U1251, 13005 Marseille, France
- Correspondence:
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133
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Shen Y, Levolger S, Zaid Al-Kaylani AHA, Uyttenboogaart M, van Donkelaar CE, Van Dijk JMC, Viddeleer AR, Bokkers RPH. Skeletal muscle atrophy and myosteatosis are not related to long-term aneurysmal subarachnoid hemorrhage outcome. PLoS One 2022; 17:e0264616. [PMID: 35245308 PMCID: PMC8896675 DOI: 10.1371/journal.pone.0264616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 02/15/2022] [Indexed: 11/30/2022] Open
Abstract
The prognosis of aneurysmal subarachnoid hemorrhage (aSAH) is highly variable. This study aims to investigate whether skeletal muscle atrophy and myosteatosis are associated with poor outcome after aSAH. In this study, a cohort of 293 consecutive aSAH-patients admitted during a 4-year period was retrospectively analyzed. Cross-sectional muscle measurements were obtained at the level of the third cervical vertebra. Muscle atrophy was defined by a sex-specific cutoff value. Myosteatosis was defined by a BMI-specific cutoff value. Poor neurological outcome was defined as modified Rankin Scale 4-6 at 2 and 6-month follow-up. Patient survival state was checked until January 2021. Generalized estimating equation was performed to assess the effect of muscle atrophy / myosteatosis on poor neurological outcome after aSAH. Cox regression was performed to analyze the impact of muscle atrophy and myosteatosis on overall survival. The study found that myosteatosis was associated with poor neurological condition (WFNS 4-5) at admission after adjusting for covariates (odds ratio [OR] 2.01; 95%CI 1.05,3.83; P = .03). It was not associated with overall survival (P = .89) or with poor neurological outcomes (P = .18) when adjusted for other prognostic markers. Muscle atrophy was not associated with overall survival (P = .58) or neurological outcome (P = .32) after aSAH. In conclusion, myosteatosis was found to be associated with poor physical condition directly after onset of aSAH. Skeletal muscle atrophy and myosteatosis were however irrelevant to outcome in the Western-European aSAH patient. Future studies are needed to validate these finding.
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Affiliation(s)
- Yuanyuan Shen
- Department of Neurosurgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Neurosurgery, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Stef Levolger
- Department of Radiology, Medical Imaging Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Abdallah H. A. Zaid Al-Kaylani
- Department of Radiology, Medical Imaging Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Maarten Uyttenboogaart
- Department of Radiology, Medical Imaging Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Carlina E. van Donkelaar
- Department of Neurosurgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J. Marc C. Van Dijk
- Department of Neurosurgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Alain R. Viddeleer
- Department of Radiology, Medical Imaging Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Reinoud P. H. Bokkers
- Department of Radiology, Medical Imaging Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Wang XH, Mitch WE, Price SR. Pathophysiological mechanisms leading to muscle loss in chronic kidney disease. Nat Rev Nephrol 2022; 18:138-152. [PMID: 34750550 DOI: 10.1038/s41581-021-00498-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2021] [Indexed: 12/16/2022]
Abstract
Loss of muscle proteins is a deleterious consequence of chronic kidney disease (CKD) that causes a decrease in muscle strength and function, and can lead to a reduction in quality of life and increased risk of morbidity and mortality. The effectiveness of current treatment strategies in preventing or reversing muscle protein losses is limited. The limitations largely stem from the systemic nature of diseases such as CKD, which stimulate skeletal muscle protein degradation pathways while simultaneously activating mechanisms that impair muscle protein synthesis and repair. Stimuli that initiate muscle protein loss include metabolic acidosis, insulin and IGF1 resistance, changes in hormones, cytokines, inflammatory processes and decreased appetite. A growing body of evidence suggests that signalling molecules secreted from muscle can enter the circulation and subsequently interact with recipient organs, including the kidneys, while conversely, pathological events in the kidney can adversely influence protein metabolism in skeletal muscle, demonstrating the existence of crosstalk between kidney and muscle. Together, these signals, whether direct or indirect, induce changes in the levels of regulatory and effector proteins via alterations in mRNAs, microRNAs and chromatin epigenetic responses. Advances in our understanding of the signals and processes that mediate muscle loss in CKD and other muscle wasting conditions will support the future development of therapeutic strategies to reduce muscle loss.
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Affiliation(s)
- Xiaonan H Wang
- Renal Division, Department of Medicine, Emory University, Atlanta, GA, USA
| | - William E Mitch
- Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - S Russ Price
- Department of Biochemistry and Molecular Biology, Brody School of Medicine, East Carolina University, Greenville, NC, USA. .,Department of Internal Medicine, Brody School of Medicine, East Carolina University, Greenville, NC, USA.
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135
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Sun Y, Liang C, Zheng L, Liu L, Li Z, Yang G, Li Y. Anti-fatigue effect of hypericin in a chronic forced exercise mouse model. JOURNAL OF ETHNOPHARMACOLOGY 2022; 284:114767. [PMID: 34710555 DOI: 10.1016/j.jep.2021.114767] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Hypericum perforatum L. is a traditional Chinese medicine used to sooth the liver, relieve depression, reduce body temperature, reduce sweating, and stimulate lactation. HP was extracted from Hypericum perforatum L. AIM OF STUDY The antifatigue effects of hypericin were assessed in a series of experiments. MATERIALS AND METHODS Six-to eight-week-old male ICR mice were raised in our lab. Mice were subjected to swimming training for 2 h, 6 days/week for 6 weeks. One hour prior to each swimming session, intraperitoneal injection of saline or HP (2 or 4 mg/kg) was performed. RESULTS Compared with the fatigue model control group, HP was found to significantly increase the swimming time in forced swimming tests. The molecular mechanisms underlying the antifatigue effects were further revealed by analysing energy metabolism, the oxidant-antioxidant system and the inflammatory response. HP normalized changes in BLA, LDH, BUN, and CK, LG in the liver. In addition, multiple assays have confirmed that HP improved the MDA, T-AOC, GSH-PX and SOD activity, and the relevant signalling pathways involved in the antifatigue effects were clarified. Furthermore, HP improves the expression of pro- and anti-inflammatory cytokines in skeletal muscle. CONCLUSION These results suggested that the anti-chronic fatigue effects of HP are likely achieved by normalizing energy metabolism and attenuating oxidative and inflammatory responses. Consequently, this study supports HP use in the clinic to alleviate chronic fatigue.
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Affiliation(s)
- Yang Sun
- School of Physical Education, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Chen Liang
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Lihua Zheng
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Lei Liu
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, Jilin, 130024, China.
| | - Zhijin Li
- Xiamen Health and Medical Big Data Center (Xiamen Medicine Research Institute), Xiamen Key Laboratory of Natural Medicine Research and Development, Xiamen, Fujian, 361008, China.
| | - Guang Yang
- School of Physical Education, Northeast Normal University, Changchun, Jilin, 130024, China.
| | - Yuxin Li
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, Jilin, 130024, China
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136
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Kistner TM, Pedersen BK, Lieberman DE. Interleukin 6 as an energy allocator in muscle tissue. Nat Metab 2022; 4:170-179. [PMID: 35210610 DOI: 10.1038/s42255-022-00538-4] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 01/21/2022] [Indexed: 12/31/2022]
Abstract
Extensive research has shown that interleukin 6 (IL-6) is a multifunctional molecule that is both proinflammatory and anti-inflammatory, depending on the context. Here, we combine an evolutionary perspective with physiological data to propose that IL-6's context-dependent effects on metabolism reflect its adaptive role for short-term energy allocation. This energy-allocation role is especially salient during physical activity, when skeletal muscle releases large amounts of IL-6. We predict that during bouts of physical activity, myokine IL-6 fulfills the three main characteristics of a short-term energy allocator: it is secreted from muscle in response to an energy deficit, it liberates somatic energy through lipolysis and it enhances muscular energy uptake and transiently downregulates immune function. We then extend this model of energy allocation beyond myokine IL-6 to reinterpret the roles that IL-6 plays in chronic inflammation, as well as during COVID-19-associated hyperinflammation and multiorgan failure.
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Affiliation(s)
- Timothy M Kistner
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
| | - Bente K Pedersen
- Centre of Inflammation and Metabolism/Centre for Physical Activity Research (CIM/CFAS), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
| | - Daniel E Lieberman
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
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137
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Correia RR, Batista VRG, Veras ASC, Tavares MEDA, Souza FLA, Pacagnelli FL, Campos DHS, Giometti IC, Teixeira GR. High-intensity interval training attenuates the effects caused by arterial hypertension in the ventral prostate. Prostate 2022; 82:373-387. [PMID: 34905633 DOI: 10.1002/pros.24285] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/01/2021] [Accepted: 12/03/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND The prostatic effects induced by arterial hypertension is very controversial and its mechanism is unclear. High-intensity interval training (HIIT) is an exercise considered to be hypotensive. The objective of this work was to investigate the molecular, biochemical, and morphological effects of 8 weeks of HIIT in the prostatic tissue of spontaneously hypertensive rats (SHR). METHODS Twenty male SHR rats, 51.4 weeks old, were used. The SHR animals were divided into two groups: spontaneously sedentary hypertensive and spontaneously hypertensive submitted to HIIT. We analyze androgens receptor and glucocorticoid receptors in the prostate. Still, we verify effects of the hypertension and HIIT on the physiopathology prostatic, for immunohistochemistry investigated BCL-2, BAX, IGF-1, FAS/CD95, data's inflammatory tumour necrosis factor α, nuclear factor kappa B and interleukin (IL)-6, anti-inflammatory IL-10. The echocardiographic evaluation was performed at the baseline and after the training period. RESULTS Arterial hypertension promote high prostatic intraepithelial neoplasia incidence in the prostate, increases IGF-1, BCL-2 (p < 0.05), and inflammatory proteins (p < 0.05). Eight weeks of HIIT training reduced the arterial pressure and increase the concentration of tissue collagen and intracellular glycogen and showed a higher expression of BAX, FAS/CD95, and IL-10 proteins (p < 0.05), coinciding with a lower incidence of lesions and lower prostate weight (p < 0.05) and reduction of the BCL-2 and IGF-1. CONCLUSION Our data suggested that arterial hypertension suppressed apoptosis and increased damage prostatic. On other hand, HIIT promotes morphology and function improves in the prostatic environment, inhibited inflammation, and increased apoptosis.
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Affiliation(s)
- Rafael Ribeiro Correia
- Department of Physical Education, Experimental Laboratory of Exercise Biology (LEBioEx), School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Victor Rogério Garcia Batista
- Department of Physical Education, Experimental Laboratory of Exercise Biology (LEBioEx), School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Allice Santos Cruz Veras
- Department of Physical Education, Experimental Laboratory of Exercise Biology (LEBioEx), School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
- Multicentric Program of Postgraduate in Physiological Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Maria Eduarda de Almeida Tavares
- Department of Physical Education, Experimental Laboratory of Exercise Biology (LEBioEx), School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
- Multicentric Program of Postgraduate in Physiological Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | | | - Francis Lopes Pacagnelli
- Postgraduate Animal Science Program, University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
| | - Dijon Henrique Salomé Campos
- Department of Clinical Medicine, Botucatu Medical School, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Ines Cristina Giometti
- Department of Reproduction, Faculty of Agricultural Sciences, University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
| | - Giovana Rampazzo Teixeira
- Department of Physical Education, Experimental Laboratory of Exercise Biology (LEBioEx), School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
- Multicentric Program of Postgraduate in Physiological Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
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138
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Anderson JE. Key concepts in muscle regeneration: muscle "cellular ecology" integrates a gestalt of cellular cross-talk, motility, and activity to remodel structure and restore function. Eur J Appl Physiol 2022; 122:273-300. [PMID: 34928395 PMCID: PMC8685813 DOI: 10.1007/s00421-021-04865-4] [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: 10/10/2021] [Accepted: 11/10/2021] [Indexed: 12/21/2022]
Abstract
This review identifies some key concepts of muscle regeneration, viewed from perspectives of classical and modern research. Early insights noted the pattern and sequence of regeneration across species was similar, regardless of the type of injury, and differed from epimorphic limb regeneration. While potential benefits of exercise for tissue repair was debated, regeneration was not presumed to deliver functional restoration, especially after ischemia-reperfusion injury; muscle could develop fibrosis and ectopic bone and fat. Standard protocols and tools were identified as necessary for tracking injury and outcomes. Current concepts vastly extend early insights. Myogenic regeneration occurs within the environment of muscle tissue. Intercellular cross-talk generates an interactive system of cellular networks that with the extracellular matrix and local, regional, and systemic influences, forms the larger gestalt of the satellite cell niche. Regenerative potential and adaptive plasticity are overlain by epigenetically regionalized responsiveness and contributions by myogenic, endothelial, and fibroadipogenic progenitors and inflammatory and metabolic processes. Muscle architecture is a living portrait of functional regulatory hierarchies, while cellular dynamics, physical activity, and muscle-tendon-bone biomechanics arbitrate regeneration. The scope of ongoing research-from molecules and exosomes to morphology and physiology-reveals compelling new concepts in muscle regeneration that will guide future discoveries for use in application to fitness, rehabilitation, and disease prevention and treatment.
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Affiliation(s)
- Judy E Anderson
- Department of Biological Sciences, Faculty of Science, University of Manitoba, 50 Sifton Road, Winnipeg, MB, R3T 2N2, Canada.
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139
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Andarianto A, Rejeki P, Sakina, Pranoto A, Seputra TA, Sugiharto, Miftahussurur M. Inflammatory markers in response to interval and continuous exercise in obese women. COMPARATIVE EXERCISE PHYSIOLOGY 2022. [DOI: 10.3920/cep210038] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Obesity is strongly associated with the degree of inflammation characterised by proinflammatory cytokines, such as tumour necrosis factor-α (TNF-α). Lifestyle modification with exercise is the right strategy because it can stimulate interleukin 6 (IL-6) secretion which acts as an anti-inflammatory. This study aimed to analyse the response of interval and continuous exercise to inflammatory markers in obese women. Twenty-four women participated in this study and were randomly divided into 3 groups: CONG (n=8, control group without any intervention): MCEG (n=8, continuous exercise group) and MIEG (n=8, interval exercise group). ELISA was used to measure the levels of IL-6 and TNF-α, pre-exercise and post-exercise. The data were analysed using the paired sample t-test. The mean levels of TNF-α, pre-exercise and post-exercise, were 19.35±2.73 vs 19.36±2.23 pg/ml (P=0.989) in CONG, 19.42±2.79 vs 16.63±0.82 pg/ml (P=0.017) in MCEG, and 19.46±3.08 vs 16.96±2.11 pg/ml (P=0.079) in MIEG. Mean levels of IL-6, pre-exercise and post-exercise, were 7.56±2.88 vs 7.66±4.12 pg/ml (P=0.957) for CONG, 7.68±3.41 vs 13.97±2.38 pg/ml (P=0.001) for MCEG, and 7.78±1.99 vs 13.66±3.55 pg/ml (P=0.001) for MIEG. We concluded that interval and continuous exercise decreased pro-inflammatory and increased anti-inflammatory cytokines.
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Affiliation(s)
- A. Andarianto
- Sport Health Science, Faculty of Medicine, Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya, Indonesia
| | - P.S. Rejeki
- Sport Health Science, Faculty of Medicine, Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya, Indonesia
- Medical Program, Faculty of Medicine, Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya, Indonesia
- Physiology Division, Department of Medical Physiology and Biochemistry, Faculty of Medicine, Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya, Indonesia
| | - Sakina
- Medical Program, Faculty of Medicine, Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya, Indonesia
- Department of Anatomy, Histology, and Pharmacology, Faculty of Medicine Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya Indonesia
| | - A. Pranoto
- Medical Science, Faculty of Medicine, Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya, Indonesia
| | - T.W. Aga Seputra
- Sport Health Science, Faculty of Medicine, Universitas Airlangga, Jl. Prof. Dr. Moestopo No.47, 60131 Surabaya, Indonesia
| | - Sugiharto
- Department of Sport Science, Faculty of Sport Science, Universitas Negeri Malang, Jl. Semarang No.5, 65145 Malang, Indonesia
| | - M. Miftahussurur
- Institute of Tropical Disease, Universitas Airlangga, 60286 Surabaya, Indonesia
- Gastroentero-Hepatology Division, Department of Internal Medicine, Faculty of Medicine, Dr. Soetomo Teaching Hospital, Universitas Airlangga, Jl. Prof. Dr. Moestopo No. 6-8, 60286 Surabaya, Indonesia
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140
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Ducloux D, Courivaud C. Prevention of Post-Transplant Diabetes Mellitus: Towards a Personalized Approach. J Pers Med 2022; 12:116. [PMID: 35055431 PMCID: PMC8778007 DOI: 10.3390/jpm12010116] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/06/2022] [Accepted: 01/13/2022] [Indexed: 02/01/2023] Open
Abstract
Post-transplant diabetes is a frequent complication after transplantation. Moreover, patients suffering from post-transplant diabetes have increased cardiovascular morbidity and reduced survival. Pathogenesis mainly involves beta-cell dysfunction in presence of insulin resistance. Both pre- and post-transplant risk factors are well-described, and some of them may be corrected or prevented. However, the frequency of post-transplant diabetes has not decreased in recent years. We realized a critical appraisal of preventive measures to reduce post-transplant diabetes.
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Affiliation(s)
- Didier Ducloux
- CHU Besançon, Department of Nephrology, Dialysis and Renal Transplantation, Federation Hospitalo-Universitaire INCREASE, 25000 Besançon, France;
- UMR RIGHT 1098, INSERM-EFS-UFC, 1 Bd Fleming, 25000 Besançon, France
| | - Cécile Courivaud
- CHU Besançon, Department of Nephrology, Dialysis and Renal Transplantation, Federation Hospitalo-Universitaire INCREASE, 25000 Besançon, France;
- UMR RIGHT 1098, INSERM-EFS-UFC, 1 Bd Fleming, 25000 Besançon, France
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141
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Rohm TV, Meier DT, Olefsky JM, Donath MY. Inflammation in obesity, diabetes, and related disorders. Immunity 2022; 55:31-55. [PMID: 35021057 PMCID: PMC8773457 DOI: 10.1016/j.immuni.2021.12.013] [Citation(s) in RCA: 533] [Impact Index Per Article: 266.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 01/13/2023]
Abstract
Obesity leads to chronic, systemic inflammation and can lead to insulin resistance (IR), β-cell dysfunction, and ultimately type 2 diabetes (T2D). This chronic inflammatory state contributes to long-term complications of diabetes, including non-alcoholic fatty liver disease (NAFLD), retinopathy, cardiovascular disease, and nephropathy, and may underlie the association of type 2 diabetes with other conditions such as Alzheimer's disease, polycystic ovarian syndrome, gout, and rheumatoid arthritis. Here, we review the current understanding of the mechanisms underlying inflammation in obesity, T2D, and related disorders. We discuss how chronic tissue inflammation results in IR, impaired insulin secretion, glucose intolerance, and T2D and review the effect of inflammation on diabetic complications and on the relationship between T2D and other pathologies. In this context, we discuss current therapeutic options for the treatment of metabolic disease, advances in the clinic and the potential of immune-modulatory approaches.
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Affiliation(s)
- Theresa V. Rohm
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Daniel T. Meier
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, CH-4031 Basel, Switzerland.,Department of Biomedicine (DBM), University of Basel, University Hospital Basel, CH-4031 Basel, Switzerland
| | - Jerrold M. Olefsky
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Marc Y. Donath
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, CH-4031 Basel, Switzerland.,Department of Biomedicine (DBM), University of Basel, University Hospital Basel, CH-4031 Basel, Switzerland.,Correspondence:
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142
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Bilski J, Pierzchalski P, Szczepanik M, Bonior J, Zoladz JA. Multifactorial Mechanism of Sarcopenia and Sarcopenic Obesity. Role of Physical Exercise, Microbiota and Myokines. Cells 2022; 11:cells11010160. [PMID: 35011721 PMCID: PMC8750433 DOI: 10.3390/cells11010160] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 02/07/2023] Open
Abstract
Obesity and ageing place a tremendous strain on the global healthcare system. Age-related sarcopenia is characterized by decreased muscular strength, decreased muscle quantity, quality, and decreased functional performance. Sarcopenic obesity (SO) is a condition that combines sarcopenia and obesity and has a substantial influence on the older adults’ health. Because of the complicated pathophysiology, there are disagreements and challenges in identifying and diagnosing SO. Recently, it has become clear that dysbiosis may play a role in the onset and progression of sarcopenia and SO. Skeletal muscle secretes myokines during contraction, which play an important role in controlling muscle growth, function, and metabolic balance. Myokine dysfunction can cause and aggravate obesity, sarcopenia, and SO. The only ways to prevent and slow the progression of sarcopenia, particularly sarcopenic obesity, are physical activity and correct nutritional support. While exercise cannot completely prevent sarcopenia and age-related loss in muscular function, it can certainly delay development and slow down the rate of sarcopenia. The purpose of this review was to discuss potential pathways to muscle deterioration in obese individuals. We also want to present the current understanding of the role of various factors, including microbiota and myokines, in the process of sarcopenia and SO.
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Affiliation(s)
- Jan Bilski
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-008 Krakow, Poland
- Correspondence: ; Tel.: +48-12-421-93-51
| | - Piotr Pierzchalski
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Marian Szczepanik
- Department of Medical Biology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-034 Krakow, Poland;
| | - Joanna Bonior
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Jerzy A. Zoladz
- Chair of Exercise Physiology and Muscle Bioenergetics, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Krakow, Poland;
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143
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Soda K. Overview of Polyamines as Nutrients for Human Healthy Long Life and Effect of Increased Polyamine Intake on DNA Methylation. Cells 2022; 11:cells11010164. [PMID: 35011727 PMCID: PMC8750749 DOI: 10.3390/cells11010164] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 02/04/2023] Open
Abstract
Polyamines, spermidine and spermine, are synthesized in every living cell and are therefore contained in foods, especially in those that are thought to contribute to health and longevity. They have many physiological activities similar to those of antioxidant and anti-inflammatory substances such as polyphenols. These include antioxidant and anti-inflammatory properties, cell and gene protection, and autophagy activation. We have first reported that increased polyamine intake (spermidine much more so than spermine) over a long period increased blood spermine levels and inhibited aging-associated pathologies and pro-inflammatory status in humans and mice and extended life span of mice. However, it is unlikely that the life-extending effect of polyamines is exerted by the same bioactivity as polyphenols because most studies using polyphenols and antioxidants have failed to demonstrate their life-extending effects. Recent investigations revealed that aging-associated pathologies and lifespan are closely associated with DNA methylation, a regulatory mechanism of gene expression. There is a close relationship between polyamine metabolism and DNA methylation. We have shown that the changes in polyamine metabolism affect the concentrations of substances and enzyme activities involved in DNA methylation. I consider that the increased capability of regulation of DNA methylation by spermine is a key of healthy long life of humans.
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Affiliation(s)
- Kuniyasu Soda
- Department Cardiovascular Institute for Medical Research, Saitama Medical Center, Jichi Medical University, 1-847, Amanuma, Saitama-City 330-0834, Saitama, Japan
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144
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Patsalos A, Halasz L, Medina-Serpas MA, Berger WK, Daniel B, Tzerpos P, Kiss M, Nagy G, Fischer C, Simandi Z, Varga T, Nagy L. A growth factor-expressing macrophage subpopulation orchestrates regenerative inflammation via GDF-15. J Exp Med 2022; 219:e20210420. [PMID: 34846534 PMCID: PMC8635277 DOI: 10.1084/jem.20210420] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 08/03/2021] [Accepted: 11/01/2021] [Indexed: 12/13/2022] Open
Abstract
Muscle regeneration is the result of the concerted action of multiple cell types driven by the temporarily controlled phenotype switches of infiltrating monocyte-derived macrophages. Pro-inflammatory macrophages transition into a phenotype that drives tissue repair through the production of effectors such as growth factors. This orchestrated sequence of regenerative inflammatory events, which we termed regeneration-promoting program (RPP), is essential for proper repair. However, it is not well understood how specialized repair-macrophage identity develops in the RPP at the transcriptional level and how induced macrophage-derived factors coordinate tissue repair. Gene expression kinetics-based clustering of blood circulating Ly6Chigh, infiltrating inflammatory Ly6Chigh, and reparative Ly6Clow macrophages, isolated from injured muscle, identified the TGF-β superfamily member, GDF-15, as a component of the RPP. Myeloid GDF-15 is required for proper muscle regeneration following acute sterile injury, as revealed by gain- and loss-of-function studies. Mechanistically, GDF-15 acts both on proliferating myoblasts and on muscle-infiltrating myeloid cells. Epigenomic analyses of upstream regulators of Gdf15 expression identified that it is under the control of nuclear receptors RXR/PPARγ. Finally, immune single-cell RNA-seq profiling revealed that Gdf15 is coexpressed with other known muscle regeneration-associated growth factors, and their expression is limited to a unique subpopulation of repair-type macrophages (growth factor-expressing macrophages [GFEMs]).
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Affiliation(s)
- Andreas Patsalos
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Laszlo Halasz
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Miguel A. Medina-Serpas
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Wilhelm K. Berger
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Bence Daniel
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Petros Tzerpos
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Máté Kiss
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gergely Nagy
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - Zoltan Simandi
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL
| | - Tamas Varga
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Laszlo Nagy
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Laporte E, De Vriendt S, Hoekx J, Vankelecom H. Interleukin-6 is dispensable in pituitary normal development and homeostasis but needed for pituitary stem cell activation following local injury. Front Endocrinol (Lausanne) 2022; 13:1092063. [PMID: 36619565 PMCID: PMC9815540 DOI: 10.3389/fendo.2022.1092063] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Recently, we discovered that the cytokine interleukin-6 (IL-6) acts as a pituitary stem cell-activating factor, both when administered in vivo and when added to stem cell organoid cultures in vitro. Moreover, its expression, predominantly localized in the gland's stem and mesenchymal cells, promptly increases following damage in the adult pituitary, leading to stem-cell proliferative activation. Given these findings that IL-6 is involved in pituitary stem cell regulation, we addressed the question whether the cytokine has an impact on the pituitary phenotype during active phases of the gland's remodeling, in particular embryonic development and neonatal maturation, as well as during homeostasis at adulthood and aging, all unknown today. Using the IL-6 knock-out (KO) mouse model, we show that IL-6 is dispensable for pituitary embryonic and neonatal endocrine cell development, as well as for hormonal cell homeostasis in adult and aging glands. The findings match the absence of effects on the stem cell compartment at these stages. However, using this IL-6 KO model, we found that IL-6 is needed for the acute stem-cell proliferative activation reaction upon pituitary injury. Intriguingly, regeneration still occurs which may be due to compensatory behavior by other cytokines which are upregulated in the damaged IL-6 KO pituitary, although at lower but prolonged levels, which might lead to a delayed (and less forceful) stem cell response. Taken together, our study revealed that IL-6 is dispensable for normal pituitary development and homeostasis but plays a key role in the prompt stem cell activation upon local damage, although its presence is not essentially needed for the final regenerative realization.
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146
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Zhu L, Han Z, He Y, Sun H. Caspase-1-Dependent Pyroptosis Mediates Adjuvant Activity of Platycodin D as an Adjuvant for Intramuscular Vaccines. Cells 2022; 11:cells11010134. [PMID: 35011696 PMCID: PMC8750424 DOI: 10.3390/cells11010134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 02/06/2023] Open
Abstract
Platycodin D (PD) is a potent adjuvant with dual Th1 and Th2 potentiating activity, but its mechanisms of action remain unclear. Here, the C2C12 myoblast cell line and mice were used as in vitro and in vivo models to identify potential signaling pathways involved in the adjuvant activity of PD. PD induced a transient cytotoxicity and inflammatory response in the C2C12 cells and in mouse quadricep muscles. A comparative analysis of microarray data revealed that PD induced similar gene expression profiles in the C2C12 cells and in the quadricep muscles, and triggered rapid regulation of death, immune, and inflammation-related genes, both in vivo and in vitro. It was further demonstrated that caspase-1-dependent pyroptosis was involved in the PD-induced cytotoxicity and inflammatory response in the C2C12 cells via the Ca2+–c-jun N-terminal kinase (JNK)/p38 mitogen-activated protein kinase (MAPK)–NLR family pyrin domain containing 3 (NLRP3) inflammasome signaling pathway. Consistently, the in vivo analysis revealed that a local blockage of NLRP3 and caspase-1 inhibited PD-induced cytokine production and immune cell recruitment at the injection site, and impaired the adjuvant activity of PD on antigen-specific immune responses to model antigen ovalbumin (OVA) in mice. These findings identified the caspase-1-dependent adjuvanticity of PD and expanded the current knowledge on the mechanisms of action of saponin-based adjuvants.
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147
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Abstract
Physical exercise can be effective in preventing or ameliorating various diseases, including diabetes, cardiovascular diseases, neurodegenerative diseases, and cancer. However, not everyone may be able to participate in exercise due to illnesses, age-related frailty, or difficulty in long-term behavior change. An alternative option is to utilize pharmacological interventions that mimic the positive effects of exercise training. Recent studies have identified signaling pathways associated with the benefits of physical activity and discovered exercise mimetics that can partially simulate the systemic impact of exercise. This review describes the molecular targets for exercise mimetics and their effect on skeletal muscle and other tissues. We will also discuss the potential advantages of using natural products as a multi-targeting agent for mimicking the health-promoting effects of exercise.
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Affiliation(s)
- Young Jin Jang
- Major of Food Science & Technology, Seoul Women’s University, Seoul 01797, Korea
| | - Sanguine Byun
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
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148
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Decreased miR-497-5p Suppresses IL-6 Induced Atrophy in Muscle Cells. Cells 2021; 10:cells10123527. [PMID: 34944037 PMCID: PMC8700610 DOI: 10.3390/cells10123527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/24/2021] [Accepted: 12/01/2021] [Indexed: 12/11/2022] Open
Abstract
Interleukin-6 (IL-6) is a pro-inflammatory cytokine associated with skeletal muscle wasting in cancer cachexia. The control of gene expression by microRNAs (miRNAs) in muscle wasting involves the regulation of thousands of target transcripts. However, the miRNA-target networks associated with IL6-induced muscle atrophy remain to be characterized. Here, we show that IL-6 promotes the atrophy of C2C12 myotubes and changes the expression of 20 miRNAs (5 up-regulated and 15 down-regulated). Gene Ontology analysis of predicted miRNAs targets revealed post-transcriptional regulation of genes involved in cell differentiation, apoptosis, migration, and catabolic processes. Next, we performed a meta-analysis of miRNA-published data that identified miR-497-5p, a down-regulated miRNAs induced by IL-6, also down-regulated in other muscle-wasting conditions. We used miR-497-5p mimics and inhibitors to explore the function of miR-497-5p in C2C12 myoblasts and myotubes. We found that miR-497-5p can regulate the expression of the cell cycle genes CcnD2 and CcnE1 without affecting the rate of myoblast cellular proliferation. Notably, miR-497-5p mimics induced myotube atrophy and reduced Insr expression. Treatment with miR-497-5p inhibitors did not change the diameter of the myotubes but increased the expression of its target genes Insr and Igf1r. These genes are known to regulate skeletal muscle regeneration and hypertrophy via insulin-like growth factor pathway and were up-regulated in cachectic muscle samples. Our miRNA-regulated network analysis revealed a potential role for miR-497-5p during IL6-induced muscle cell atrophy and suggests that miR-497-5p is likely involved in a compensatory mechanism of muscle atrophy in response to IL-6.
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149
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Kousari A, Moser C, Olefsky M, Brown TT, Currier JS, McComsey GA, Scherzinger A, Stein JH, Lake JE, Erlandson KM. Poorer Muscle Quality and Quantity With ART Initiation Is Associated With Greater Inflammation and Immune Activation. J Acquir Immune Defic Syndr 2021; 88:399-405. [PMID: 34326283 PMCID: PMC8556226 DOI: 10.1097/qai.0000000000002776] [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: 04/02/2021] [Accepted: 06/22/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND We have previously shown that the initiation of antiretroviral therapy (ART) is associated with a decrease in skeletal muscle density (greater fat accumulation), suggesting that gains in lean body mass seen in many ART studies may reflect gains in low quality, fatty muscle. Here, we explore whether skeletal muscle density and area are associated with markers of inflammation and immune activation. METHODS ART-naïve people with HIV were randomized to raltegravir or ritonavir-boosted atazanavir or darunavir, each with tenofovir disoproxil fumarate/emtricitabine. Abdominal computed tomography scans from baseline and week 96 were reanalyzed for psoas density and area and correlations explored with inflammation [interleukin-6 (IL-6) and high-sensitivity C-reactive protein] and immune activation [soluble CD14 (sCD14), soluble CD163 (sCD163), and %CD38+HLADR+ on CD4+ or CD8+ T cells]. RESULTS Two hundred twenty-two participants had available inflammation/immune activation markers and paired computed tomography scans. At baseline, lower psoas density (greater fat) correlated with higher IL-6 (r = -0.26, P < 0.001) and sCD163 (r -0.15, P = 0.03) and lower lean psoas area correlated with higher IL-6, high-sensitivity C-reactive protein, sCD14, sCD163, and %CD38+HLADR+ on CD4+ T cells (r = -0.30-0.13; all P ≤ 0.05). From baseline to week 96, greater percent decrease in total psoas density (more fat) correlated with greater increase in IL-6 (r = -0.14; P = 0.04); greater % decrease in lean psoas area correlated greater increases in IL-6, sCD14, sCD163, and %CD38+HLADR+ on CD8+ T cells (r = -0.15 to -0.18; all P < 0.04). CONCLUSIONS Greater fat infiltration within the psoas muscle (lower density) and greater loss in lean psoas muscle area were associated with higher inflammation and immune activation, which may portend important effects on muscle function and cardiometabolic risk.
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Affiliation(s)
| | - Carlee Moser
- Harvard T.H. Chan School of Public Health; Boston, MA
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Steinhart B, Jordan KR, Bapat J, Post MD, Brubaker LW, Bitler BG, Wrobel J. The Spatial Context of Tumor-Infiltrating Immune Cells Associates with Improved Ovarian Cancer Survival. Mol Cancer Res 2021; 19:1973-1979. [PMID: 34615692 PMCID: PMC8642308 DOI: 10.1158/1541-7786.mcr-21-0411] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/13/2021] [Accepted: 09/30/2021] [Indexed: 12/24/2022]
Abstract
Ovarian cancer is the deadliest gynecologic malignancy. Multi-omics techniques have provided a platform for improved predictive modeling of therapy response and patient outcomes. While high-grade serous carcinoma (HGSOC) tumors are immunogenic and numerous studies have defined positive correlation to immune cell infiltration, immunotherapies in clinical trials have exhibited low efficacy rates. There is a significant need to better comprehend the role and composition of immune cells in mediating ovarian cancer therapeutic response and progression. We performed multiplex IHC with an HGSOC tissue microarray (n = 127) to characterize the immune cell composition within tumors. After analyzing the composition and spatial context of T cells (CD4/CD8), macrophages (CD68), and B cells (CD19) within the tumor, we found that increased B-cell and CD4 T-cell presence correlated with overall survival. More importantly, we observed that the proximity between tumor-associated macrophages and B cells or CD4 T cells significantly correlated with overall survival. IMPLICATIONS: The results highlight the antitumor role of B cells and CD4 T cells, and that the spatial interactions between immune cell types are a novel predictor of therapeutic response and patient outcomes.
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Affiliation(s)
- Benjamin Steinhart
- Department of Biostatistics & Informatics, Colorado School of Public Health, The University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Kimberly R Jordan
- Department of Immunology and Microbiology, The University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Jaidev Bapat
- Cancer Biology Graduate Program, The University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Miriam D Post
- Department of Pathology, The University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Lindsay W Brubaker
- Department of Obstetrics & Gynecology, Division of Gynecologic Oncology, The University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Benjamin G Bitler
- University of Colorado Comprehensive Cancer Center, Aurora, Colorado.
- Department of Obstetrics & Gynecology, Division of Reproductive Sciences, The University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Julia Wrobel
- Department of Biostatistics & Informatics, Colorado School of Public Health, The University of Colorado Anschutz Medical Campus, Aurora, Colorado.
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