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Morena F, Cabrera AR, Greene NP. Exploring heterogeneity: a dive into preclinical models of cancer cachexia. Am J Physiol Cell Physiol 2024; 327:C310-C328. [PMID: 38853648 DOI: 10.1152/ajpcell.00317.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 05/31/2024] [Accepted: 05/31/2024] [Indexed: 06/11/2024]
Abstract
Cancer cachexia (CC) is a multifactorial and complex syndrome experienced by up to 80% of patients with cancer and implicated in ∼40% of cancer-related deaths. Given its significant impact on patients' quality of life and prognosis, there has been a growing emphasis on elucidating the underlying mechanisms of CC using preclinical models. However, the mechanisms of cachexia appear to differ across several variables including tumor type and model and biologic variables such as sex. These differences may be exacerbated by variance in experimental approaches and data reporting. This review examines literature spanning from 2011 to March 2024, focusing on common preclinical models of CC, including Lewis Lung Carcinoma, pancreatic KPC, and colorectal colon-26 and Apcmin/+ models. Our analysis reveals considerable heterogeneity in phenotypic outcomes, and investigated mechanisms within each model, with particular attention to sex differences that may be exacerbated through methodological differences. Although searching for unified mechanisms is critical, we posit that effective treatment approaches are likely to leverage the heterogeneity presented by the tumor and pertinent biological variables to direct specific interventions. In exploring this heterogeneity, it becomes critical to consider methodological and data reporting approaches to best inform further research.
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Affiliation(s)
- Francielly Morena
- Cachexia Research Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, United States
| | - Ana Regina Cabrera
- Cachexia Research Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, United States
| | - Nicholas P Greene
- Cachexia Research Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, United States
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2
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Papadopetraki A, Giannopoulos A, Maridaki M, Zagouri F, Droufakou S, Koutsilieris M, Philippou A. The Role of Exercise in Cancer-Related Sarcopenia and Sarcopenic Obesity. Cancers (Basel) 2023; 15:5856. [PMID: 38136400 PMCID: PMC10741686 DOI: 10.3390/cancers15245856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/03/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
One of the most common adverse effects of cancer and its therapeutic strategies is sarcopenia, a condition which is characterised by excess muscle wasting and muscle strength loss due to the disrupted muscle homeostasis. Moreover, cancer-related sarcopenia may be combined with the increased deposition of fat mass, a syndrome called cancer-associated sarcopenic obesity. Both clinical conditions have significant clinical importance and can predict disease progression and survival. A growing body of evidence supports the claim that physical exercise is a safe and effective complementary therapy for oncology patients which can limit the cancer- and its treatment-related muscle catabolism and promote the maintenance of muscle mass. Moreover, even after the onset of sarcopenia, exercise interventions can counterbalance the muscle mass loss and improve the clinical appearance and quality of life of cancer patients. The aim of this narrative review was to describe the various pathophysiological mechanisms, such as protein synthesis, mitochondrial function, inflammatory response, and the hypothalamic-pituitary-adrenal axis, which are regulated by exercise and contribute to the management of sarcopenia and sarcopenic obesity. Moreover, myokines, factors produced by and released from exercising muscles, are being discussed as they appear to play an important role in mediating the beneficial effects of exercise against sarcopenia.
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Affiliation(s)
- Argyro Papadopetraki
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (A.P.)
| | - Antonios Giannopoulos
- Section of Sports Medicine, Department of Community Medicine & Rehabilitation, Umeå University, 901 87 Umeå, Sweden;
- National Centre for Sport and Exercise Medicine (NCSEM), School of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire LE11 3TU, UK
| | - Maria Maridaki
- Faculty of Physical Education and Sport Science, National and Kapodistrian University of Athens, 172 37 Dafne, Greece
| | - Flora Zagouri
- Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 115 28 Athens, Greece
| | | | - Michael Koutsilieris
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (A.P.)
| | - Anastassios Philippou
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (A.P.)
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3
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Bettariga F, Bishop C, Taaffe DR, Galvão DA, Maestroni L, Newton RU. Time to consider the potential role of alternative resistance training methods in cancer management? JOURNAL OF SPORT AND HEALTH SCIENCE 2023; 12:715-725. [PMID: 37399886 PMCID: PMC10658316 DOI: 10.1016/j.jshs.2023.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/09/2023] [Accepted: 06/08/2023] [Indexed: 07/05/2023]
Abstract
Exercise has emerged as fundamental therapeutic medicine in the management of cancer. Exercise improves health-related outcomes, including quality of life, neuromuscular strength, physical function, and body composition, and it is associated with a lower risk of disease recurrence and increased survival. Moreover, exercise during or post cancer treatments is safe, can ameliorate treatment-related side effects, and may enhance the effectiveness of chemotherapy and radiation therapy. To date, traditional resistance training (RT) is the most used RT modality in exercise oncology. However, alternative training modes, such as eccentric, cluster set, and blood flow restriction are gaining increased attention. These training modalities have been extensively investigated in both athletic and clinical populations (e.g., age-related frailty, cardiovascular disease, type 2 diabetes), showing considerable benefits in terms of neuromuscular strength, hypertrophy, body composition, and physical function. However, these training modes have only been partially or not at all investigated in cancer populations. Thus, this study outlines the benefits of these alternative RT methods in patients with cancer. Where evidence in cancer populations is sparse, we provide a robust rationale for the possible implementation of certain RT methods that have shown positive results in other clinical populations. Finally, we provide clinical insights for research that may guide future RT investigations in patients with cancer and suggest clear practical applications for targeted cancer populations and related benefits.
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Affiliation(s)
- Francesco Bettariga
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Chris Bishop
- London Sport Institute, School of Science and Technology, Middlesex University, London, NW4 4BT, UK
| | - Dennis R Taaffe
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Daniel A Galvão
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Luca Maestroni
- London Sport Institute, School of Science and Technology, Middlesex University, London, NW4 4BT, UK
| | - Robert U Newton
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia; School of Human Movement and Nutrition Sciences, University of Queensland, St. Lucia, QLD 4067, Australia.
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4
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Wang J, Tan S, Gianotti L, Wu G. Evaluation and management of body composition changes in cancer patients. Nutrition 2023; 114:112132. [PMID: 37441827 DOI: 10.1016/j.nut.2023.112132] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/06/2023] [Accepted: 06/10/2023] [Indexed: 07/15/2023]
Abstract
Wasting in cancer patients has long been recognized as a condition that adversely affects cancer patients' quality of life, treatment tolerance, and oncological outcomes. Historically, this condition was mainly evaluated by changes in body weight. However, this approach is not quite accurate because body weight is the overall change of all body compartments. Conditions such as edema and ascites can mask the severity of muscle and adipose tissue depletion. Changes in body composition assessment in cancer patients have historically been underappreciated because of the limited availability of measurement tools. As more evidence highlighting the importance of body composition has emerged, it is imperative to apply a more precise evaluation of nutritional status and a more targeted approach to provide nutritional support for cancer patients. In this review, we will discuss the modalities for evaluating body composition and how to manage body composition changes in cancer patients.
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Affiliation(s)
- Junjie Wang
- Department of General Surgery/Shanghai Clinical Nutrition Research Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shanjun Tan
- Department of General Surgery/Shanghai Clinical Nutrition Research Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Luca Gianotti
- School of Medicine and Surgery, University of Milano-Bicocca, and HBP Surgery Unit, and Foundation IRCCS San Gerardo, Monza, Italy.
| | - Guohao Wu
- Department of General Surgery/Shanghai Clinical Nutrition Research Center, Zhongshan Hospital, Fudan University, Shanghai, China.
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5
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Miyazaki M, Sawada A, Sawamura D, Yoshida S. Decreased insulin-like growth factor-1 expression in response to mechanical loading is associated with skeletal muscle anabolic resistance in cancer cachexia. Growth Horm IGF Res 2023; 69-70:101536. [PMID: 37229943 DOI: 10.1016/j.ghir.2023.101536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 05/07/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Cachexia is a systemic metabolic syndrome characterized by loss of body weight and skeletal muscle mass during chronic wasting diseases, such as cancer. Skeletal muscle in cancer cachexia is less responsive to anabolic factors including mechanical loading; however, the precise molecular mechanism is largely unknown. In this study, we examined the underlying mechanism of anabolic resistance in skeletal muscle in a cancer cachexia model. METHODS CD2F1 mice (male, 8 weeks old) were subcutaneously transplanted (1 × 106 cells per mouse) with a mouse colon cancer-derived cell line (C26) as a model of cancer cachexia. Mechanical overload of the plantaris muscle by synergist tenotomy was performed during the 2nd week and the plantaris muscle was sampled at the 4th week following C26 transplantation. RESULTS The hypertrophic response of skeletal muscle (increased skeletal muscle weight/protein synthesis efficiency and activation of mechanistic target of rapamycin complex 1 signaling) associated with mechanical overload was significantly suppressed during cancer cachexia. Screening of gene expression profile and pathway analysis using microarray revealed that blunted muscle protein synthesis was associated with cancer cachexia and was likely induced by downregulation of insulin-like growth factor-1 (IGF-1) and impaired activation of IGF-1-dependent signaling. CONCLUSIONS These observations indicate that cancer cachexia induces resistance to muscle protein synthesis, which may be a factor for inhibiting the anabolic adaptation of skeletal muscle to physical exercise in cancer patients.
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Affiliation(s)
- Mitsunori Miyazaki
- Department of Integrative Physiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan; Department of Physical Therapy, School of Rehabilitation Sciences, Health Sciences University of Hokkaido, Japan.
| | - Atsushi Sawada
- Department of Physical Therapy, School of Rehabilitation Sciences, Health Sciences University of Hokkaido, Japan
| | - Daisuke Sawamura
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Japan
| | - Susumu Yoshida
- Department of Physical Therapy, School of Rehabilitation Sciences, Health Sciences University of Hokkaido, Japan
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Murphy BT, Mackrill JJ, O'Halloran KD. Impact of cancer cachexia on respiratory muscle function and the therapeutic potential of exercise. J Physiol 2022; 600:4979-5004. [PMID: 36251564 PMCID: PMC10091733 DOI: 10.1113/jp283569] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/09/2022] [Indexed: 01/05/2023] Open
Abstract
Cancer cachexia is defined as a multi-factorial syndrome characterised by an ongoing loss of skeletal muscle mass and progressive functional impairment, estimated to affect 50-80% of patients and responsible for 20% of cancer deaths. Elevations in the morbidity and mortality rates of cachectic cancer patients has been linked to respiratory failure due to atrophy and dysfunction of the ventilatory muscles. Despite this, there is a distinct scarcity of research investigating the structural and functional condition of the respiratory musculature in cancer, with the majority of studies exclusively focusing on limb muscle. Treatment strategies are largely ineffective in mitigating the cachectic state. It is now widely accepted that an efficacious intervention will likely combine elements of pharmacology, nutrition and exercise. However, of these approaches, exercise has received comparatively little attention. Therefore, it is unlikely to be implemented optimally, whether in isolation or combination. In consideration of these limitations, the current review describes the mechanistic basis of cancer cachexia and subsequently explores the available respiratory- and exercise-focused literature within this context. The molecular basis of cachexia is thoroughly reviewed. The pivotal role of inflammatory mediators is described. Unravelling the mechanisms of exercise-induced support of muscle via antioxidant and anti-inflammatory effects in addition to promoting efficient energy metabolism via increased mitochondrial biogenesis, mitochondrial function and muscle glucose uptake provide avenues for interventional studies. Currently available pre-clinical mouse models including novel transgenic animals provide a platform for the development of multi-modal therapeutic strategies to protect respiratory muscles in people with cancer.
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Affiliation(s)
- Ben T Murphy
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
| | - John J Mackrill
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Ken D O'Halloran
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
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Peñailillo L, Valladares-Ide D, Jannas-Velas S, Flores-Opazo M, Jalón M, Mendoza L, Nuñez I, Diaz-Patiño O. Effects of eccentric, concentric and eccentric/concentric training on muscle function and mass, functional performance, cardiometabolic health, quality of life and molecular adaptations of skeletal muscle in COPD patients: a multicentre randomised trial. BMC Pulm Med 2022; 22:278. [PMID: 35854255 PMCID: PMC9297587 DOI: 10.1186/s12890-022-02061-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/04/2022] [Indexed: 11/12/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is the third cause of death worldwide. COPD is characterised by dyspnoea, limited exercise tolerance, and muscle dysfunction. Muscle dysfunction has been linked to dysregulation between muscle protein synthesis, myogenesis and degradation mechanisms. Conventional concentric cycling has been shown to improve several clinical outcomes and reduce muscle wasting in COPD patients. Eccentric cycling is a less explored exercise modality that allows higher training workloads imposing lower cardio-metabolic demand during exercise, which has shown to induce greater muscle mass and strength gains after training. Interestingly, the combination of eccentric and concentric cycling training has scarcely been explored. The molecular adaptations of skeletal muscle after exercise interventions in COPD have shown equivocal results. The mechanisms of muscle wasting in COPD and whether it can be reversed by exercise training are unclear. Therefore, this study aims two-fold: (1) to compare the effects of 12 weeks of eccentric (ECC), concentric (CONC), and combined eccentric/concentric (ECC/CONC) cycling training on muscle mass and function, cardiometabolic health, physical activity levels and quality of life in severe COPD patients; and (2) to examine the molecular adaptations regulating muscle growth after training, and whether they occur similarly in specific muscle fibres (i.e., I, IIa and IIx). Methods Study 1 will compare the effects of 12 weeks of CONC, ECC, versus ECC/CONC training on muscle mass and function, cardiometabolic health, levels of physical activity and quality of life of severe COPD patients using a multicentre randomised trial. Study 2 will investigate the effects of these training modalities on the molecular adaptations regulating muscle protein synthesis, myogenesis and muscle degradation in a subgroup of patients from Study 1. Changes in muscle fibres morphology, protein content, genes, and microRNA expression involved in skeletal muscle growth will be analysed in specific fibre-type pools. Discussion We aim to demonstrate that a combination of eccentric and concentric exercise could maximise the improvements in clinical outcomes and may be ideal for COPD patients. We also expect to unravel the molecular mechanisms underpinning muscle mass regulation after training in severe COPD patients. Trial Registry: Deutshches Register Klinischer Studien; Trial registration: DRKS00027331; Date of registration: 12 January 2022. https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00027331.
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Affiliation(s)
- Luis Peñailillo
- Exercise and Rehabilitation Sciences Laboratory, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, 700 Fernández Concha, Las Condes, 7591538, Santiago, Chile.
| | - Denisse Valladares-Ide
- Long Active Life Laboratory, Instituto de Ciencias de la Salud, Universidad de O'Higgins, Rancagua, Chile
| | - Sebastián Jannas-Velas
- Long Active Life Laboratory, Instituto de Ciencias de la Salud, Universidad de O'Higgins, Rancagua, Chile
| | | | | | - Laura Mendoza
- Respiratory Unit, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Ingrid Nuñez
- Department of Pulmonary Diseases, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago, Chile.,Department of Critical Care, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago, Chile
| | - Orlando Diaz-Patiño
- Department of Pulmonary Diseases, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago, Chile.,Department of Critical Care, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago, Chile
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8
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Hardee JP, Carson JA. Muscular contraction's therapeutic potential for cancer-induced wasting. Am J Physiol Cell Physiol 2022; 323:C378-C384. [PMID: 35704693 PMCID: PMC9359654 DOI: 10.1152/ajpcell.00021.2022] [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] [Indexed: 11/22/2022]
Abstract
Skeletal muscle atrophy and dysfunction contribute to cancer patient morbidity and mortality. Cachexia pathophysiology is highly complex, given that perturbations to the systemic cancer environment and the interaction with diverse tissues can contribute to wasting processes. Systemic interleukin 6 (IL-6) and glycoprotein 130 (gp130) receptor signaling have established roles in some types of cancer-induced muscle wasting through disruptions to protein turnover and oxidative capacity. While exercise has documented benefits for cancer prevention and patient survival, there are significant gaps in our understanding of muscle adaptation and plasticity during severe cachexia. Preclinical models have provided valuable insight into the adaptive potential of muscle to contraction within the cancer environment. We summarize the current understanding of how resistance-type exercise impacts mechanisms involved in cancer-induced muscle atrophy and dysfunction. Specifically, the role of IL-6 and gp130 receptor in the pathophysiology of muscle wasting and the adaptive response to exercise is explained. The discussion includes current knowledge gaps and future research directions needed to improve preclinical research and accelerate clinical translation in human cancer patients.
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Affiliation(s)
- Justin P Hardee
- Centre for Muscle Research, Department of Anatomy & Physiology, University of Melbourne, Parkville, VIC, Australia
| | - James A Carson
- Center for Muscle Metabolism & Neuropathology, Division of Rehabilitation Sciences, University of Tennessee Health Science Center, Memphis, TN, United States.,College of Health Professions, University of Tennessee Health Science Center, Memphis, TN, United States
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9
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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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Mavropalias G, Sim M, Taaffe DR, Galvão DA, Spry N, Kraemer WJ, Häkkinen K, Newton RU. Exercise medicine for cancer cachexia: targeted exercise to counteract mechanisms and treatment side effects. J Cancer Res Clin Oncol 2022; 148:1389-1406. [PMID: 35088134 PMCID: PMC9114058 DOI: 10.1007/s00432-022-03927-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/13/2022] [Indexed: 12/27/2022]
Abstract
Purpose Cancer-induced muscle wasting (i.e., cancer cachexia, CC) is a common and devastating syndrome that results in the death of more than 1 in 5 patients. Although primarily a result of elevated inflammation, there are multiple mechanisms that complement and amplify one another. Research on the use of exercise to manage CC is still limited, while exercise for CC management has been recently discouraged. Moreover, there is a lack of understanding that exercise is not a single medicine, but mode, type, dosage, and timing (exercise prescription) have distinct health outcomes. The purpose of this review was to examine the effects of these modes and subtypes to identify the most optimal form and dosage of exercise therapy specific to each underlying mechanism of CC. Methods The relevant literatures from MEDLINE and Scopus databases were examined. Results Exercise can counteract the most prominent mechanisms and signs of CC including muscle wasting, increased protein turnover, systemic inflammation, reduced appetite and anorexia, increased energy expenditure and fat wasting, insulin resistance, metabolic dysregulation, gut dysbiosis, hypogonadism, impaired oxidative capacity, mitochondrial dysfunction, and cancer treatments side-effects. There are different modes of exercise, and each mode has different sub-types that induce vastly diverse changes when performed over multiple sessions. Choosing suboptimal exercise modes, types, or dosages can be counterproductive and could further contribute to the mechanisms of CC without impacting muscle growth. Conclusion Available evidence shows that patients with CC can safely undertake higher-intensity resistance exercise programs, and benefit from increases in body mass and muscle mass.
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Affiliation(s)
- Georgios Mavropalias
- Exercise Medicine Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia.
| | - Marc Sim
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup, Australia
- Medical School, University of Western Australia, Perth, Australia
| | - Dennis R Taaffe
- Exercise Medicine Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia
| | - Daniel A Galvão
- Exercise Medicine Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia
| | - Nigel Spry
- Exercise Medicine Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia
| | - William J Kraemer
- Exercise Medicine Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia
- Department of Human Sciences, Ohio State University, Columbus, USA
| | - Keijo Häkkinen
- Neuromuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyvaskyla, Finland
| | - Robert U Newton
- Exercise Medicine Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia
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Padilha CS, Cella PS, Chimin P, Voltarelli FA, Marinello PC, Testa MTDEJ, Guirro PB, Duarte JAR, Cecchini R, Guarnier FA, Deminice R. Resistance Training's Ability to Prevent Cancer-induced Muscle Atrophy Extends Anabolic Stimulus. Med Sci Sports Exerc 2021; 53:1572-1582. [PMID: 33731662 DOI: 10.1249/mss.0000000000002624] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE This study aimed to determine the role of mammalian target of rapamycin (mTORC1) activation and catabolic markers in resistance training's (RT) antiatrophy effect during cachexia-induced muscle loss. METHODS Myofiber atrophy was induced by injecting Walker 256 tumor cells into rats exposed or not exposed to the RT protocol of ladder climbing. The role of RT-induced anabolic stimulation was investigated in tumor-bearing rats with the mTORC1 inhibitor rapamycin, and cross-sectional areas of skeletal muscle were evaluated to identify atrophy or hypertrophy. Components of the mTORC1 and ubiquitin-proteasome pathways were assessed by real-time polymerase chain reaction or immunoblotting. RESULTS Although RT prevented myofiber atrophy and impaired the strength of tumor-bearing rats, in healthy rats, it promoted activated mTORC1, as demonstrated by p70S6K's increased phosphorylation and myofiber's enlarged cross-sectional area. However, RT promoted no changes in the ratio of p70S6K to phospho-p70S6K protein expression while prevented myofiber atrophy in tumor-bearing rats. Beyond that, treatment with rapamycin did not preclude RT's preventive effect on myofiber atrophy in tumor-bearing rats. Thus, RT's ability to prevent cancer-induced myofiber atrophy seems to be independent of mTORC1's and p70S6K's activation. Indeed, RT's preventive effect on cancer-induced myofiber atrophy was associated with its capacity to attenuate elevated tumor necrosis factor α and interleukin 6 as well as to prevent oxidative damage in muscles and an elevated abundance of atrogin-1. CONCLUSIONS By inducing attenuated myofiber atrophy independent of mTORC1's signaling activation, RT prevents muscle atrophy during cancer by reducing inflammation, oxidative damage, and atrogin-1 expression.
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Affiliation(s)
| | - Paola S Cella
- Department of Physical Education, State University of Londrina, Londrina, PR, BRAZIL
| | - Patrícia Chimin
- Department of Physical Education, State University of Londrina, Londrina, PR, BRAZIL
| | - Fabrício A Voltarelli
- Federal University of Mato Grosso, Graduate Program of Health Sciences, Faculty of Medicine, Cuiabá, BRAZIL
| | | | | | - Philippe B Guirro
- Department of Physical Education, State University of Londrina, Londrina, PR, BRAZIL
| | - José A R Duarte
- University of Porto, CIAFEL, Faculty of Sport, Porto, PORTUGAL
| | - Rubens Cecchini
- State University of Londrina, Department of General Pathology, Londrina, PR, BRAZIL
| | - Flávia A Guarnier
- State University of Londrina, Department of General Pathology, Londrina, PR, BRAZIL
| | - Rafael Deminice
- Department of Physical Education, State University of Londrina, Londrina, PR, BRAZIL
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12
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Fix DK, Counts BR, Smuder AJ, Sarzynski MA, Koh H, Carson JA. Wheel running improves fasting-induced AMPK signaling in skeletal muscle from tumor-bearing mice. Physiol Rep 2021; 9:e14924. [PMID: 34270178 PMCID: PMC8284248 DOI: 10.14814/phy2.14924] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 04/23/2021] [Indexed: 12/14/2022] Open
Abstract
Disruptions to muscle protein turnover and metabolic regulation contribute to muscle wasting during the progression of cancer cachexia. The initiation of cachexia is also associated with decreased physical activity. While chronic muscle AMPK activation occurs during cachexia progression in ApcMin/+ (MIN) mice, a preclinical cachexia model, the understanding of muscle AMPK's role during cachexia initiation is incomplete. Therefore, we examined if voluntary wheel exercise could improve skeletal muscle AMPK signaling in pre-cachectic MIN mice. Next, we examined muscle AMPK's role in aberrant catabolic signaling in response to a 12-h fast in mice initiating cachexia. Male C57BL/6 (B6: N = 26) and MIN (N = 29) mice were subjected to ad libitum feeding, 12-h fast, or 4 wks. of wheel access and then a 12-h fast during the initiation of cachexia. Male tamoxifen-inducible skeletal muscle AMPKα1 α2 (KO) knockout mice crossed with ApcMin/+ and floxed controls were examined (WT: N = 8, KO: N = 8, MIN: N = 10, MIN KO: N = 6). Male mice underwent a 12-h fast and the gastrocnemius muscle was analyzed. MIN gastrocnemius mass was reduced compared to B6 mice. A 12-h fast induced MIN muscle AMPKT172 , FOXOS413 , and ULK-1S555 phosphorylation compared to B6. Wheel running attenuated these inductions. A 12-h fast induced MIN muscle MuRF-1 protein expression compared to B6 and was suppressed by wheel running. Additionally, fasting induced muscle autophagy signaling and disrupted mitochondrial quality protein expression in the MIN, which was prevented in the MIN KO. We provide evidence that increased skeletal muscle AMPK sensitivity to a 12-h fast is an adverse event in pre-cachectic MIN mice, and exercise can improve this regulation.
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Affiliation(s)
- Dennis K. Fix
- Department of Exercise ScienceArnold School of Public HealthUniversity of South CarolinaColumbiaSCUSA
| | - Brittany R. Counts
- Integrative Muscle Biology LaboratoryDivision of Rehabilitation SciencesCollege of Health ProfessionsUniversity of Tennessee Health Science CenterMemphisTNUSA
| | - Ashley J. Smuder
- Department of Applied Physiology & KinesiologyCollege of Health & Human PerformanceUniversity of FloridaGainesvilleFLUSA
| | - Mark A. Sarzynski
- Department of Exercise ScienceArnold School of Public HealthUniversity of South CarolinaColumbiaSCUSA
| | - Ho‐Jin Koh
- Department of Exercise ScienceArnold School of Public HealthUniversity of South CarolinaColumbiaSCUSA
| | - James A. Carson
- Integrative Muscle Biology LaboratoryDivision of Rehabilitation SciencesCollege of Health ProfessionsUniversity of Tennessee Health Science CenterMemphisTNUSA
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13
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Exercise-A Panacea of Metabolic Dysregulation in Cancer: Physiological and Molecular Insights. Int J Mol Sci 2021; 22:ijms22073469. [PMID: 33801684 PMCID: PMC8037630 DOI: 10.3390/ijms22073469] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 12/14/2022] Open
Abstract
Metabolic dysfunction is a comorbidity of many types of cancers. Disruption of glucose metabolism is of concern, as it is associated with higher cancer recurrence rates and reduced survival. Current evidence suggests many health benefits from exercise during and after cancer treatment, yet only a limited number of studies have addressed the effect of exercise on cancer-associated disruption of metabolism. In this review, we draw on studies in cells, rodents, and humans to describe the metabolic dysfunctions observed in cancer and the tissues involved. We discuss how the known effects of acute exercise and exercise training observed in healthy subjects could have a positive outcome on mechanisms in people with cancer, namely: insulin resistance, hyperlipidemia, mitochondrial dysfunction, inflammation, and cachexia. Finally, we compile the current limited knowledge of how exercise corrects metabolic control in cancer and identify unanswered questions for future research.
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14
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Mohanty V, Subbannayya Y, Patil S, Puttamallesh VN, Najar MA, Datta KK, Pinto SM, Begum S, Mohanty N, Routray S, Abdulla R, Ray JG, Sidransky D, Gowda H, Prasad TSK, Chatterjee A. Molecular alterations in oral cancer using high-throughput proteomic analysis of formalin-fixed paraffin-embedded tissue. J Cell Commun Signal 2021; 15:447-459. [PMID: 33683571 DOI: 10.1007/s12079-021-00609-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 01/04/2023] Open
Abstract
Loss of cell differentiation is a hallmark for the progression of oral squamous cell carcinoma (OSCC). Archival Formalin-Fixed Paraffin-Embedded (FFPE) tissues constitute a valuable resource for studying the differentiation of OSCC and can offer valuable insights into the process of tumor progression. In the current study, we performed LC-MS/MS-based quantitative proteomics of FFPE specimens from pathologically-confirmed well-differentiated, moderately-differentiated, and poorly-differentiated OSCC cases. The data were analyzed in four technical replicates, resulting in the identification of 2376 proteins. Of these, 141 and 109 were differentially expressed in moderately-differentiated and poorly differentiated OSCC cases, respectively, compared to well-differentiated OSCC. The data revealed significant metabolic reprogramming with respect to lipid metabolism and glycolysis with proteins belonging to both these processes downregulated in moderately-differentiated OSCC when compared to well-differentiated OSCC. Signaling pathway analysis indicated the alteration of extracellular matrix organization, muscle contraction, and glucose metabolism pathways across tumor grades. The extracellular matrix organization pathway was upregulated in moderately-differentiated OSCC and downregulated in poorly differentiated OSCC, compared to well-differentiated OSCC. PADI4, an epigenetic enzyme transcriptional regulator, and its transcriptional target HIST1H1B were both found to be upregulated in moderately differentiated and poorly differentiated OSCC, indicating epigenetic events underlying tumor differentiation. In conclusion, the findings support the advantage of using high-resolution mass spectrometry-based FFPE archival blocks for clinical and translational research. The candidate signaling pathways identified in the study could be used to develop potential therapeutic targets for OSCC.
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Affiliation(s)
- Varshasnata Mohanty
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India
| | - Yashwanth Subbannayya
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India.,Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway
| | - Shankargouda Patil
- Division of Oral Pathology, College of Dentistry, Department of Maxillofacial Surgery and Diagnostic Sciences, Jazan University, Jazan, 45142, Saudi Arabia
| | - Vinuth N Puttamallesh
- Institute of Bioinformatics, International Technology Park, Bangalore, Karnataka, 560066, India
| | - Mohd Altaf Najar
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India
| | - Keshava K Datta
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India
| | - Sneha M Pinto
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India.,Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway
| | - Sameera Begum
- Department of Oral Pathology, Yenepoya Dental College, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India
| | - Neeta Mohanty
- Department of Oral Pathology & Microbiology, Institute of Dental Sciences, Siksha'O'Anusandhan University, Bhubaneswar, Odisha, 751003, India
| | - Samapika Routray
- Department of Oral Pathology & Microbiology, Institute of Dental Sciences, Siksha'O'Anusandhan University, Bhubaneswar, Odisha, 751003, India.,Department of Dental Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, 751019, India
| | - Riaz Abdulla
- Department of Oral Pathology, Yenepoya Dental College, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India
| | - Jay Gopal Ray
- Department of Oral Pathology, Dr. R. Ahmed Dental College & Hospital, Kolkata, West Bengal, 700 014, India.,Department of Pathology, Burdwan Dental College and Hospital, Burdwan, West Bengal, 713101, India
| | - David Sidransky
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD, 21231, USA
| | - Harsha Gowda
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India.,Institute of Bioinformatics, International Technology Park, Bangalore, Karnataka, 560066, India.,Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - T S Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India.
| | - Aditi Chatterjee
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed To Be University), Mangalore, Karnataka, 575018, India. .,Institute of Bioinformatics, International Technology Park, Bangalore, Karnataka, 560066, India. .,Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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15
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Dunlap KR, Steiner JL, Rossetti ML, Kimball SR, Gordon BS. A clinically relevant decrease in contractile force differentially regulates control of glucocorticoid receptor translocation in mouse skeletal muscle. J Appl Physiol (1985) 2021; 130:1052-1063. [PMID: 33600283 DOI: 10.1152/japplphysiol.01064.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Muscle atrophy decreases physical function and overall health. Increased glucocorticoid production and/or use of prescription glucocorticoids can significantly induce muscle atrophy by activating the glucocorticoid receptor, thereby transcribing genes that shift protein balance in favor of net protein degradation. Although mechanical overload can blunt glucocorticoid-induced atrophy in young muscle, those affected by glucocorticoids generally have impaired force generation. It is unknown whether contractile force alters the ability of resistance exercise to mitigate glucocorticoid receptor translocation and induce a desirable shift in protein balance when glucocorticoids are elevated. In the present study, mice were subjected to a single bout of unilateral, electrically induced muscle contractions by stimulating the sciatic nerve at 100 Hz or 50 Hz frequencies to elicit high or moderate force contractions of the tibialis anterior, respectively. Dexamethasone was used to activate the glucocorticoid receptor. Dexamethasone increased glucocorticoid signaling, including nuclear translocation of the receptor, but this was mitigated only by high force contractions. The ability of high force contractions to mitigate glucocorticoid receptor translocation coincided with a contraction-mediated increase in muscle protein synthesis, which did not occur in the dexamethasone-treated mice subjected to moderate force contractions. Though moderate force contractions failed to increase protein synthesis following dexamethasone treatment, both high and moderate force contractions blunted the glucocorticoid-mediated increase in LC3 II:I marker of autophagy. Thus, these data show that force generation is important for the ability of resistance exercise to mitigate glucocorticoid receptor translocation and promote a desirable shift in protein balance when glucocorticoids are elevated.NEW & NOTEWORTHY Glucocorticoids induce significant skeletal muscle atrophy by activating the glucocorticoid receptor. Our work shows that muscle contractile force dictates glucocorticoid receptor nuclear translocation. We also show that blunting nuclear translocation by high force contractions coincides with the ability of muscle to mount an anabolic response characterized by increased muscle protein synthesis. This work further defines the therapeutic parameters of skeletal muscle contractions to blunt glucocorticoid-induced atrophy.
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Affiliation(s)
- Kirsten R Dunlap
- Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee, Florida
| | - Jennifer L Steiner
- Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee, Florida.,Institute of Sports Sciences and Medicine, Florida State University, Tallahassee, Florida
| | - Michael L Rossetti
- Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee, Florida
| | - Scot R Kimball
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Bradley S Gordon
- Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee, Florida.,Institute of Sports Sciences and Medicine, Florida State University, Tallahassee, Florida
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16
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Wilcox-Hagerty J, Xu H, Hain BA, Arnold AC, Waning DL. Bone metastases induce metabolic changes and mitophagy in mice. Exp Physiol 2021; 106:506-518. [PMID: 33369797 PMCID: PMC7855482 DOI: 10.1113/ep089130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/19/2020] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? Cachexia causes severe changes in skeletal muscle metabolism and function and is a key predictor of negative outcomes in cancer patients: what are the changes in whole animal energy metabolism and mitochondria in skeletal muscle? What is the main finding and its importance? There is decreased whole animal energy expenditure in mice with cachexia. They displayed highly dysmorphic mitochondria and mitophagy in skeletal muscle. ABSTRACT Cachexia causes changes in skeletal muscle metabolism. Mice with MDA-MB-231 breast cancer bone metastases and cachexia have decreased whole animal energy metabolism and increased skeletal muscle mitophagy. We examined whole animal energy metabolism by indirect calorimetry in mice with MDA-MB-231 breast cancer bone metastases, and showed decreased energy expenditure. We also examined skeletal muscle mitochondria and found that mitochondria in mice with MDA-MB-231 bone metastases are highly dysmorphic and have altered protein markers of mitochondrial biogenesis and dynamics. In addition, LC3B protein was increased in mitochondria of skeletal muscle from cachectic mice, and colocalized with the mitochondrial protein Tom20. Our data demonstrate the importance of mitophagy in cachexia. Understanding these changes will help contribute to defining treatments for cancer cachexia.
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Affiliation(s)
- Jenna Wilcox-Hagerty
- The Penn State College of Medicine, Department of Cellular and Molecular Physiology, Hershey, PA, USA
| | - Haifang Xu
- The Penn State College of Medicine, Department of Cellular and Molecular Physiology, Hershey, PA, USA
| | - Brian A Hain
- The Penn State College of Medicine, Department of Cellular and Molecular Physiology, Hershey, PA, USA
| | - Amy C Arnold
- The Penn State College of Medicine, Department of Neural and Behavioral Sciences, Hershey, PA, USA
| | - David L Waning
- The Penn State College of Medicine, Department of Cellular and Molecular Physiology, Hershey, PA, USA
- Penn State Cancer Institute, Hershey, PA, USA
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