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Gunasekara N, Clauss D, Bloch W. Effects of Exercise-Induced Changes in Myokine Expression on the Tumor Microenvironment. Sports Med Int Open 2024; 8:a22831663. [PMID: 38933599 PMCID: PMC11204211 DOI: 10.1055/a-2283-1663] [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: 10/10/2023] [Accepted: 04/26/2024] [Indexed: 06/28/2024] Open
Abstract
In this narrative review, we summarize the direct and indirect effects that myokines have on the tumor microenvironment. We took studies of various cancer types and species into account. Systematic reviews and meta-analyses that matched the search terms were also considered. We searched databases for six months. As a narrative approach was chosen, no data was analyzed or reanalyzed. The goal of this narrative review is to create an overview on the topic to identify research gaps and answer the questions as to whether myokine expression may be relevant in cancer research in regard to the tumor microenvironment. Six commonly known myokines were chosen. We found strong links between the influence exercise has on interleukin-6, oncostatin M, secreted protein acidic and rich in cysteine, and irisin in the context of tumor progression and inhibition via interactions with the tumor microenvironment. It became clear that the effects of myokines on the tumor microenvironment can vary and contribute to disease progression or regression. Interactions among myokines and immune cells must also be considered and require further investigation. To date, no study has shown a clear connection, while multiple studies suggest further investigation of the topic, similar to the effects of exercise on myokine expression.
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Affiliation(s)
- Nadira Gunasekara
- Institute of Cardiology and Sports Medicine, German Sport University
Cologne, Cologne, Germany
| | - Dorothea Clauss
- Institute of Cardiology and Sports Medicine, German Sport University
Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Institute of Cardiology and Sports Medicine, German Sport University
Cologne, Cologne, Germany
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2
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He A, Pu Y, Jia C, Wu M, He H, Xia Y. The Influence of Exercise on Cancer Risk, the Tumor Microenvironment and the Treatment of Cancer. Sports Med 2024; 54:1371-1397. [PMID: 38687441 DOI: 10.1007/s40279-024-02031-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2024] [Indexed: 05/02/2024]
Abstract
There are several modifiable factors that can be targeted to prevent and manage the occurrence and progression of cancer, and maintaining adequate exercise is a crucial one. Regular physical exercise has been shown to be a beneficial strategy in preventing cancer, potentially amplifying the effectiveness of established cancer therapies, alleviating certain cancer-related symptoms, and possibly mitigating side effects resulting from treatment. Nevertheless, the exact mechanisms by which exercise affects tumors, especially its impact on the tumor microenvironment (TME), remain uncertain. This review aims to present an overview of the beneficial effects of exercise in the context of cancer management, followed by a summary of the exercise parameters, especially exercise intensity, that need to be considered when prescribing exercise for cancer patients. Finally, we discuss the influence of exercise on the TME, including its effects on crucial immune cells (e.g., T cells, macrophages, neutrophils, natural killer cells, myeloid-derived suppressor cells, B cells), intratumor angiogenesis, and cancer metabolism. This comprehensive review provides up-to-date scientific evidence on the effects of exercise training on cancer and offers guidance to clinicians for the development of safe and feasible exercise training programs for cancer patients in clinical practice.
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Affiliation(s)
- Anqi He
- Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yamin Pu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chengsen Jia
- Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Mengling Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hongchen He
- Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China.
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Yong Xia
- Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China.
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
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3
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Queiroz MIC, Lazaro CM, Dos Santos LMB, Rentz T, Virgilio-da-Silva JV, Moraes-Vieira PMM, Cunha FAS, Santos JCC, Vercesi AE, Leite ACR, Oliveira HCF. In vivo chronic exposure to inorganic mercury worsens hypercholesterolemia, oxidative stress and atherosclerosis in the LDL receptor knockout mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 275:116254. [PMID: 38547729 DOI: 10.1016/j.ecoenv.2024.116254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 04/12/2024]
Abstract
Heavy metal exposure leads to multiple system dysfunctions. The mechanisms are likely multifactorial and involve inflammation and oxidative stress. The aim of this study was to evaluate markers and risk factors for atherosclerosis in the LDL receptor knockout mouse model chronically exposed to inorganic mercury (Hg) in the drinking water. Results revealed that Hg exposed mice present increased plasma levels of cholesterol, without alterations in glucose. As a major source and target of oxidants, we evaluated mitochondrial function. We found that liver mitochondria from Hg treated mice show worse respiratory control, lower oxidative phosphorylation efficiency and increased H2O2 release. In addition, Hg induced mitochondrial membrane permeability transition. Erythrocytes from Hg treated mice showed a 50% reduction in their ability to take up oxygen, lower levels of reduced glutathione (GSH) and of antioxidant enzymes (SOD, catalase and GPx). The Hg treatment disturbed immune system cells counting and function. While lymphocytes were reduced, monocytes, eosinophils and neutrophils were increased. Peritoneal macrophages from Hg treated mice showed increased phagocytic activity. Hg exposed mice tissues present metal impregnation and parenchymal architecture alterations. In agreement, increased systemic markers of liver and kidney dysfunction were observed. Plasma, liver and kidney oxidative damage indicators (MDA and carbonyl) were increased while GSH and thiol groups were diminished by Hg exposure. Importantly, atherosclerotic lesion size in the aorta root of Hg exposed mice were larger than in controls. In conclusion, in vivo chronic exposure to Hg worsens the hypercholesterolemia, impairs mitochondrial bioenergetics and redox function, alters immune cells profile and function, causes several tissues oxidative damage and accelerates atherosclerosis development.
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Affiliation(s)
- Maiara I C Queiroz
- Institute of Chemistry and Biotecnology, Federal University do Alagoas (UFAL), AL, Brazil
| | - Carolina M Lazaro
- Dept of Structural and Functional Biology, Biology Institute, State University of Campinas (Unicamp), SP, Brazil
| | - Lohanna M B Dos Santos
- Dept of Structural and Functional Biology, Biology Institute, State University of Campinas (Unicamp), SP, Brazil
| | - Thiago Rentz
- Dept of Structural and Functional Biology, Biology Institute, State University of Campinas (Unicamp), SP, Brazil
| | - João V Virgilio-da-Silva
- Dept Genetics and Evolution, Microbiology and Immunology, Biology Institute, State University of Campinas (Unicamp), SP, Brazil
| | - Pedro M M Moraes-Vieira
- Dept Genetics and Evolution, Microbiology and Immunology, Biology Institute, State University of Campinas (Unicamp), SP, Brazil
| | - Francisco A S Cunha
- Institute of Chemistry and Biotecnology, Federal University do Alagoas (UFAL), AL, Brazil; Institute of Chemistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | - Josué C C Santos
- Institute of Chemistry and Biotecnology, Federal University do Alagoas (UFAL), AL, Brazil
| | - Anibal E Vercesi
- Dept of Pathology, Faculty of Medical Sciences, State University of Campinas (Unicamp), SP, Brazil
| | - Ana Catarina R Leite
- Institute of Chemistry and Biotecnology, Federal University do Alagoas (UFAL), AL, Brazil.
| | - Helena C F Oliveira
- Dept of Structural and Functional Biology, Biology Institute, State University of Campinas (Unicamp), SP, Brazil.
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Novel Role of CETP in Macrophages: Reduction of Mitochondrial Oxidants Production and Modulation of Cell Immune-Metabolic Profile. Antioxidants (Basel) 2022; 11:antiox11091734. [PMID: 36139808 PMCID: PMC9495589 DOI: 10.3390/antiox11091734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 01/22/2023] Open
Abstract
Plasma cholesteryl ester transfer protein (CETP) activity diminishes HDL-cholesterol levels and thus may increase atherosclerosis risk. Experimental evidence suggests CETP may also exhibit anti-inflammatory properties, but local tissue-specific functions of CETP have not yet been clarified. Since oxidative stress and inflammation are major features of atherogenesis, we investigated whether CETP modulates macrophage oxidant production, inflammatory and metabolic profiles. Comparing macrophages from CETP-expressing transgenic mice and non-expressing littermates, we observed that CETP expression reduced mitochondrial superoxide anion production and H2O2 release, increased maximal mitochondrial respiration rates, and induced elongation of the mitochondrial network and expression of fusion-related genes (mitofusin-2 and OPA1). The expression of pro-inflammatory genes and phagocytic activity were diminished in CETP-expressing macrophages. In addition, CETP-expressing macrophages had less unesterified cholesterol under basal conditions and after exposure to oxidized LDL, as well as increased HDL-mediated cholesterol efflux. CETP knockdown in human THP1 cells increased unesterified cholesterol and abolished the effects on mitofusin-2 and TNFα. In summary, the expression of CETP in macrophages modulates mitochondrial structure and function to promote an intracellular antioxidant state and oxidative metabolism, attenuation of pro-inflammatory gene expression, reduced cholesterol accumulation, and phagocytosis. These localized functions of CETP may be relevant for the prevention of atherosclerosis and other inflammatory diseases.
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Emery A, Moore S, Turner JE, Campbell JP. Reframing How Physical Activity Reduces The Incidence of Clinically-Diagnosed Cancers: Appraising Exercise-Induced Immuno-Modulation As An Integral Mechanism. Front Oncol 2022; 12:788113. [PMID: 35359426 PMCID: PMC8964011 DOI: 10.3389/fonc.2022.788113] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/14/2022] [Indexed: 12/13/2022] Open
Abstract
Undertaking a high volume of physical activity is associated with reduced risk of a broad range of clinically diagnosed cancers. These findings, which imply that physical activity induces physiological changes that avert or suppress neoplastic activity, are supported by preclinical intervention studies in rodents demonstrating that structured regular exercise commonly represses tumour growth. In Part 1 of this review, we summarise epidemiology and preclinical evidence linking physical activity or regular structured exercise with reduced cancer risk or tumour growth. Despite abundant evidence that physical activity commonly exerts anti-cancer effects, the mechanism(s)-of-action responsible for these beneficial outcomes is undefined and remains subject to ongoing speculation. In Part 2, we outline why altered immune regulation from physical activity - specifically to T cells - is likely an integral mechanism. We do this by first explaining how physical activity appears to modulate the cancer immunoediting process. In doing so, we highlight that augmented elimination of immunogenic cancer cells predominantly leads to the containment of cancers in a 'precancerous' or 'covert' equilibrium state, thus reducing the incidence of clinically diagnosed cancers among physically active individuals. In seeking to understand how physical activity might augment T cell function to avert cancer outgrowth, in Part 3 we appraise how physical activity affects the determinants of a successful T cell response against immunogenic cancer cells. Using the cancer immunogram as a basis for this evaluation, we assess the effects of physical activity on: (i) general T cell status in blood, (ii) T cell infiltration to tissues, (iii) presence of immune checkpoints associated with T cell exhaustion and anergy, (iv) presence of inflammatory inhibitors of T cells and (v) presence of metabolic inhibitors of T cells. The extent to which physical activity alters these determinants to reduce the risk of clinically diagnosed cancers - and whether physical activity changes these determinants in an interconnected or unrelated manner - is unresolved. Accordingly, we analyse how physical activity might alter each determinant, and we show how these changes may interconnect to explain how physical activity alters T cell regulation to prevent cancer outgrowth.
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Affiliation(s)
- Annabelle Emery
- Department for Health, University of Bath, Bath, United Kingdom
| | - Sally Moore
- Department of Haematology, Royal United Hospitals Bath NHS Foundation Trust, Bath, United Kingdom
| | - James E Turner
- Department for Health, University of Bath, Bath, United Kingdom
| | - John P Campbell
- Department for Health, University of Bath, Bath, United Kingdom
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6
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Leitner BP, Siebel S, Akingbesote ND, Zhang X, Perry RJ. Insulin and cancer: a tangled web. Biochem J 2022; 479:583-607. [PMID: 35244142 PMCID: PMC9022985 DOI: 10.1042/bcj20210134] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 12/13/2022]
Abstract
For a century, since the pioneering work of Otto Warburg, the interwoven relationship between metabolism and cancer has been appreciated. More recently, with obesity rates rising in the U.S. and worldwide, epidemiologic evidence has supported a link between obesity and cancer. A substantial body of work seeks to mechanistically unpack the association between obesity, altered metabolism, and cancer. Without question, these relationships are multifactorial and cannot be distilled to a single obesity- and metabolism-altering hormone, substrate, or factor. However, it is important to understand the hormone-specific associations between metabolism and cancer. Here, we review the links between obesity, metabolic dysregulation, insulin, and cancer, with an emphasis on current investigational metabolic adjuncts to standard-of-care cancer treatment.
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Affiliation(s)
- Brooks P. Leitner
- Departments of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, U.S.A
- Departments of Internal Medicine, Yale School of Medicine, New Haven, CT, U.S.A
| | - Stephan Siebel
- Departments of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, U.S.A
- Departments of Internal Medicine, Yale School of Medicine, New Haven, CT, U.S.A
- Departments of Pediatrics, Yale School of Medicine, New Haven, CT, U.S.A
| | - Ngozi D. Akingbesote
- Departments of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, U.S.A
- Departments of Internal Medicine, Yale School of Medicine, New Haven, CT, U.S.A
| | - Xinyi Zhang
- Departments of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, U.S.A
- Departments of Internal Medicine, Yale School of Medicine, New Haven, CT, U.S.A
| | - Rachel J. Perry
- Departments of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, U.S.A
- Departments of Internal Medicine, Yale School of Medicine, New Haven, CT, U.S.A
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Assis LHDP, Dorighello GDG, Rentz T, de Souza JC, Vercesi AE, de Oliveira HCF. In Vivo Pravastatin Treatment Reverses Hypercholesterolemia Induced Mitochondria-Associated Membranes Contact Sites, Foam Cell Formation, and Phagocytosis in Macrophages. Front Mol Biosci 2022; 9:839428. [PMID: 35372506 PMCID: PMC8965079 DOI: 10.3389/fmolb.2022.839428] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Statins are successful drugs used to treat hypercholesterolemia, a primary cause of atherosclerosis. In this work, we investigated how hypercholesterolemia and pravastatin treatment impact macrophage and mitochondria functions, the key cell involved in atherogenesis. By comparing bone marrow-derived macrophages (BMDM) of wild-type (WT) and LDL receptor knockout (LDLr−/−) mice, we observed hypercholesterolemia increased the number of contact sites at mitochondria-associated endoplasmic reticulum (ER) membranes (MAMs), enhanced mitochondrial hydrogen peroxide release, altered the gene expression of inflammatory markers, and increased oxidized LDL (ox-LDL) uptake and phagocytic activity. Three months of in vivo pravastatin treatment of LDLr−/− mice reversed the number of contact sites at the MAM, ox-LDL uptake, and phagocytosis in LDLr−/− BMDM. Additionally, pravastatin increased BMDM mitochondrial network branching. In peritoneal macrophages (PMs), hypercholesterolemia did not change MAM stability, but stimulated hydrogen peroxide production and modulated gene expression of pro- and anti-inflammatory markers. It also increased mitochondrial branching degree and had no effects on ox-LDL uptake and phagocytosis in PM. Pravastatin treatment increased superoxide anion production and changed inflammation-related gene expression in LDLr−/− PM. In addition, pravastatin increased markedly the expression of the mitochondrial dynamics-related genes Mfn2 and Fis1 in both macrophages. In summary, our results show that hypercholesterolemia and pravastatin treatment affect macrophage mitochondria network structure as well as their interaction with the endoplasmic reticulum (ER). These effects impact on macrophage conversion rates to foam cell and macrophage phagocytic capacity. These findings associate MAM stability changes with known mechanisms involved in atherosclerosis progression and resolution.
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Affiliation(s)
| | | | - Thiago Rentz
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
| | - Jane Cristina de Souza
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | - Aníbal Eugênio Vercesi
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | - Helena Coutinho Franco de Oliveira
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
- *Correspondence: Helena Coutinho Franco de Oliveira,
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8
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Zhong D, Li Y, Huang Y, Hong X, Li J, Jin R. Molecular Mechanisms of Exercise on Cancer: A Bibliometrics Study and Visualization Analysis via CiteSpace. Front Mol Biosci 2022; 8:797902. [PMID: 35096970 PMCID: PMC8794585 DOI: 10.3389/fmolb.2021.797902] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/21/2021] [Indexed: 12/24/2022] Open
Abstract
Objective: To analyze the research hot spots and frontiers of molecular mechanisms of exercise on cancer via CiteSpace. Method: Related publications in the Web of Science Core Collection Science Citation Index Expanded were retrieved from inception to November 27th, 2021. Then we used CiteSpace to generate network maps and identify top authors, institutions, countries, keywords, co-cited authors, journals, references and research trends. Results: A total of 1,130 related publications were retrieved. The most productive author and journal were Lee W Jones and PLOS ONE. Hanahan D and Warburg O were the most cited authors. Fudan University and Shanghai Jiao Tong University were the leading institutions, while China was the leading country. Top-cited authors and references generally focused on the epidemiology and hallmarks of cancer. Top five keywords with both high frequency and high betweenness centrality were breast cancer, aerobic glycolysis, oxidative stress, gene expression, skeletal muscle. Keyword “warburg effect” ranked first with the highest citation burst, while “inflammation”, “hepatocellular carcinoma”, “epithelial mesenchymal transition”, and “adipose tissue” were emerging research foci. Conclusion: This study analyzed the research hot spots and frontiers of molecular mechanisms of exercise on cancer via CiteSpace. Based on the results, altered metabolism (aerobic glycolysis, insulin resistance, myokines), oxidative stress, gene expression and apoptosis were hot-research mechanisms of exercise on cancer. Emerging research foci of mechanisms were generally around inflammation, epithelial mesenchymal transition and adipokines. In addition, future studies could carry in-depth research of interactions between different mechanisms and try to elucidate the recommended doses and intensities of exercise for cancer, especially in breast, colorectal, prostate cancer and hepatocellular carcinoma.
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Affiliation(s)
- Dongling Zhong
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuxi Li
- School of Acupuncture Moxibustion and Tuina, The Third Affiliated Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yijie Huang
- The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xiaojuan Hong
- School of Acupuncture Moxibustion and Tuina, The Third Affiliated Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiaojuan Hong, ; Rongjiang Jin, ; Juan Li,
| | - Juan Li
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiaojuan Hong, ; Rongjiang Jin, ; Juan Li,
| | - Rongjiang Jin
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiaojuan Hong, ; Rongjiang Jin, ; Juan Li,
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Niels T, Tomanek A, Freitag N, Schumann M. Can Exercise Counteract Cancer Cachexia? A Systematic Literature Review and Meta-Analysis. Integr Cancer Ther 2021; 19:1534735420940414. [PMID: 32954861 PMCID: PMC7503012 DOI: 10.1177/1534735420940414] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background: Cancer-cachexia is associated with chronic inflammation, impaired muscle metabolism and body mass loss, all of which are classical targets of physical exercise. Objectives: This systematic review and meta-analysis aimed to determine the effects of exercise on body and muscle mass in cachectic cancer hosts. Data Sources: PubMed/Medline, EMBASE, CINHAL, ISI Web of Science, and Cochrane Library were searched until July 2019. Study Selection: Trials had to be randomized controlled trials or controlled trials including cancer patients or animal models with cachexia-inducing tumors. Only sole exercise interventions over at least 7 days performed in a controlled environment were included. Data Extraction: Risk of bias was assessed and a random-effects model was used to pool effect sizes by standardized mean differences (SMD). Results: All eligible 20 studies were performed in rodents. Studies prescribed aerobic (n = 15), strength (n = 3) or combined training (n = 2). No statistical differences were observed for body mass and muscle weight of the gastrocnemius, soleus, and tibialis muscles between the exercise and control conditions (SMD = ‒0.05, 95%CI-0.64-0.55, P = 0.87). Exercise duration prior to tumor inoculation was a statistical moderator for changes in body mass under tumor presence (P = 0.04). Limitations: No human trials were identified. A large study heterogeneity was present, probably due to different exercise modalities and outcome reporting. Conclusion: Exercise does not seem to affect cancer-cachexia in rodents. However, the linear regression revealed that exercise duration prior to tumor inoculation led to reduced cachexia-severity, possibly strengthening the rationale for the use of exercise in cancer patients at cachexia risk.
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Affiliation(s)
- Timo Niels
- University Hospital of Cologne, Cologne, Germany
| | | | - Nils Freitag
- German Sport University Cologne, Cologne, Germany
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Dorighello GG, Rovani JC, Paim BA, Rentz T, Assis LHP, Vercesi AE, Oliveira HCF. Mild Mitochondrial Uncoupling Decreases Experimental Atherosclerosis, A Proof of Concept. J Atheroscler Thromb 2021; 29:825-838. [PMID: 34092712 PMCID: PMC9174088 DOI: 10.5551/jat.62796] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Aim: Atherosclerosis is responsible for high morbidity and mortality rates around the world. Local arterial oxidative stress is involved in all phases of atherosclerosis development. Mitochondria is a relevant source of the oxidants, particularly under certain risky conditions, such as hypercholesterolemia. The aim of this study was to test whether lowering the production of mitochondrial oxidants by induction of a mild uncoupling can reduce atherosclerosis in hypercholesterolemic LDL receptor knockout mice.
Methods: The mice were chronically treated with very low doses of DNP (2,4-dinitrophenol) and metabolic, inflammatory and redox state markers and atherosclerotic lesion sizes were determined.
Results: The DNP treatment did not change the classical atherosclerotic risk markers, such as plasma lipids, glucose homeostasis, and fat mass, as well as systemic inflammatory markers. However, the DNP treatment diminished the production of mitochondrial oxidants, systemic and tissue oxidative damage markers, peritoneal macrophages and aortic rings oxidants generation. Most importantly, development of spontaneous and diet-induced atherosclerosis (lipid and macrophage content) were significantly decreased in the DNP-treated mice. In vitro, DNP treated peritoneal macrophages showed decreased H2O2 production, increased anti-inflammatory cytokines gene expression and secretion, increased phagocytic activity, and decreased LDL-cholesterol uptake.
Conclusions: These findings are a proof of concept that activation of mild mitochondrial uncoupling is sufficient to delay the development of atherosclerosis under the conditions of hypercholesterolemia and oxidative stress. These results promote future approaches targeting mitochondria for the prevention or treatment of atherosclerosis.
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Affiliation(s)
- Gabriel G Dorighello
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas.,Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas
| | - Juliana C Rovani
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas
| | - Bruno A Paim
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas
| | - Thiago Rentz
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas
| | - Leandro H P Assis
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas
| | - Anibal E Vercesi
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas
| | - Helena C F Oliveira
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas
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11
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Martins CG, Appel MH, Coutinho DSS, Soares IP, Fischer S, de Oliveira BC, Fachi MM, Pontarolo R, Bonatto SJR, Fernandes LC, Iagher F, de Souza LM. Consumption of latex from Euphorbia tirucalli L. promotes a reduction of tumor growth and cachexia, and immunomodulation in Walker 256 tumor-bearing rats. JOURNAL OF ETHNOPHARMACOLOGY 2020; 255:112722. [PMID: 32114165 DOI: 10.1016/j.jep.2020.112722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/17/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Euphorbia tirucalli L. is an African plant that grows well in Brazil. Individuals diagnosed with cancer frequently consume latex from E. tirucalli, dissolved in drinking water. In vitro studies confirm the antitumor potential of E. tirucalli latex, but in vivo evaluations are scarce. AIM OF THE STUDY To evaluate the effect of intake of an aqueous solution of E. tirucalli latex on tumor growth, cachexia, and immune response in Walker 256 tumor-bearing rats. MATERIALS AND METHODS Latex from E. tirucalli was collected and analyzed by LC-MS. Sixty male Wistar rats (age, 90 days) were randomly divided into four groups: C, control group (without tumor); W, Walker 256 tumor-bearing group; SW1, W animals but treated with 25 μL latex/mL water; and SW2, W animals but treated with 50 μL latex/mL water. Animals received 1 mL of latex solution once a day by gavage. After 15 d, animals were euthanized, tumor mass was determined, and glucose and triacylglycerol serum levels were measured by using commercial kits. Change in the body weight during tumor development was calculated, and proliferation capacity of tumor cells was assessed by the Alamar Blue assay. Phagocytosis and superoxide anion production by peritoneal macrophages and circulating neutrophils were analyzed by enzymatic and colorimetric assays. Data are analyzed by one-way ANOVA followed by Tukey's post-hoc test, with the significance level set at 5%. RESULTS The analysis of the latex revealed the presence of triterpenes. The ingestion of the latex aqueous solution promoted 40% and 60% reduction of the tumor mass in SW1 and SW2 groups, respectively (p < 0.05). The proliferative capacity of tumor cells from SW2 group was 76% lower than that of cells from W group (p < 0.0001). Animals treated with latex gained, on average, 20 g (SW1) and 8 g (SW2) weight. Glucose and triacylglycerol serum levels in SW1 and SW2 animals were similar to those in C group rats. Peritoneal macrophages and blood neutrophils from SW1 and SW2 animals produced 30-40% less superoxide anions than those from W group animals (p < 0.05), but neutrophils from SW2 group showed an increased phagocytic capacity (20%, vs. W group). CONCLUSIONS E. tirucalli latex, administered orally for 15 d, efficiently reduced tumor growth and cachexia in Walker 256 tumor-bearing rats. Decreased tumor cell proliferative capacity was one of the mechanisms involved in this effect. Further, the data suggest immunomodulatory properties of E. tirucalli latex. The results agree with folk data on the antitumor effect of latex ingestion, indicating that it may be useful as an adjunct in the treatment of cancer patients. For this, further in vivo studies in animal and human models need to be conducted.
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Affiliation(s)
- Carolina G Martins
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil; Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Department of Physiology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Marcia H Appel
- Department of Structural Biology, Molecular and Genetics, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Débora S S Coutinho
- Department of Physiology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Igor P Soares
- Department of Physiology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Stefani Fischer
- Department of Physiology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Bruna C de Oliveira
- Department of Physiology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Mariana M Fachi
- Department of Pharmacy, Federal University of Paraná, Curitiba, PR, Brazil
| | - Roberto Pontarolo
- Department of Pharmacy, Federal University of Paraná, Curitiba, PR, Brazil
| | - Sandro J R Bonatto
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil; Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | | | - Fabíola Iagher
- Department of Physiology, Federal University of Paraná, Curitiba, PR, Brazil.
| | - Lauro M de Souza
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil; Faculdades Pequeno Príncipe, Curitiba, PR, Brazil.
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12
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Holmen Olofsson G, Jensen AWP, Idorn M, thor Straten P. Exercise Oncology and Immuno-Oncology; A (Future) Dynamic Duo. Int J Mol Sci 2020; 21:ijms21113816. [PMID: 32471301 PMCID: PMC7312459 DOI: 10.3390/ijms21113816] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
Recent advances in clinical oncology is based on exploiting the capacity of the immune system to combat cancer: immuno-oncology. Thus, immunotherapy of cancer is now used to treat a variety of malignant diseases. A striking feature is that even patients with late-stage disease may experience curative responses. However, most patients still succumb to disease, and do not benefit from treatment. Exercise has gained attention in clinical oncology and has been used for many years to improve quality of life, as well as to counteract chemotherapy-related complications. However, more recently, exercise has garnered interest, largely due to data from animal studies suggesting a striking therapeutic effect in preclinical cancer models; an effect largely mediated by the immune system. In humans, physical activity is associated with a lower risk for a variety of malignancies, and some data suggest a positive clinical effect for cancer patients. Exercise leads to mobilization of cells of the immune system, resulting in redistribution to different body compartments, and in preclinical models, exercise has been shown to lead to immunological changes in the tumor microenvironment. This suggests that exercise and immunotherapy could have a synergistic effect if combined.
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Affiliation(s)
- Gitte Holmen Olofsson
- Department of Oncology, National Center for Cancer Immune Therapy (CCIT-DK), University Hospital Herlev, 2730 Herlev, Denmark;
- Correspondence: (G.H.O.); (P.t.S.)
| | - Agnete Witness Praest Jensen
- Department of Oncology, National Center for Cancer Immune Therapy (CCIT-DK), University Hospital Herlev, 2730 Herlev, Denmark;
| | - Manja Idorn
- Department of Biomedicine, Faculty of Health, Aarhus University, 8000 Aarhus, Denmark;
| | - Per thor Straten
- Department of Oncology, National Center for Cancer Immune Therapy (CCIT-DK), University Hospital Herlev, 2730 Herlev, Denmark;
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
- Correspondence: (G.H.O.); (P.t.S.)
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13
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Abstract
PURPOSE OF REVIEW Cancer cachexia is a complex condition that occurs in approximately 50% of cancer patients and in 80% of those with advanced cancer. It is characterized by lean body mass loss, adipose tissue loss, altered metabolism, increased inflammation, and a decrease in quality of life. Cancer cachexia is a frustrating condition to manage and treatment requires an innovative approach. The purpose of this article is to review the current treatments for cancer cachexia and how they could be used in a multimodal approach. RECENT FINDINGS Cancer cachexia has many causes, but is primarily a result of reduced energy-protein intake and altered metabolism augmented by a proinflammatory state. There is not a formal consensus on diagnosing cancer cachexia, but proactive screening and assessments for malnutrition are an effective first step toward identifying high-risk patients. Treatment of cancer cachexia includes optimizing nutrition care, using appropriate pharmacological agents, preserving lean body mass, and the cooperation of the healthcare team. SUMMARY Cancer cachexia is a complex multifactorial condition that can only be successfully managed and treated with a multimodal approach that involves a multidisciplinary team that includes an oncology registered dietitian nutritionist and exercise physiologist that target early detection and management of cancer cachexia.
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14
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Fei Z, Li D, Li K, Zhou M, Li Y, Li Y, Sun Z. Detraining after tumor-bearing accelerates tumor growth while continuous training decreases tumor growth in mice. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2020. [DOI: 10.1016/j.jtcms.2020.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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15
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Buss LA, Dachs GU. Effects of Exercise on the Tumour Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1225:31-51. [PMID: 32030646 DOI: 10.1007/978-3-030-35727-6_3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Epidemiological evidence suggests that exercise improves survival in cancer patients. However, much is still unknown regarding the mechanisms of this positive survival effect and there are indications that exercise may not be universally beneficial for cancer patients. The key to understanding in which situations exercise is beneficial may lie in understanding its influence on the tumour microenvironment (TME)-and conversely, the influence of the tumour on physical functioning. The TME consists of a vast multitude of different cell types, mechanical and chemical stressors and humoral factors. The interplay of these different components greatly influences tumour cell characteristics and, subsequently, tumour growth rate and aggression. Exercise exerts whole-body physiological effects and can directly and indirectly affect the TME. In this chapter, we first discuss the possible role of exercise capacity ('fitness') and exercise adaptability on tumour responsiveness to exercise. We summarise how exercise affects aspects of the TME such as tumour perfusion, vascularity, hypoxia (reduced oxygenation) and immunity. Additionally, we discuss the role of myokines and other circulating factors in eliciting these changes in the TME. Finally, we highlight unanswered questions and key areas for future research in exercise oncology and the TME.
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Affiliation(s)
- Linda A Buss
- Mackenzie Cancer Research Group, Department of Pathology and Biomedical Science, University of Otago Christchurch, Christchurch, New Zealand
| | - Gabi U Dachs
- Mackenzie Cancer Research Group, Department of Pathology and Biomedical Science, University of Otago Christchurch, Christchurch, New Zealand.
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16
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Patel DI, Wallace D, Abuchowski K, Rivas P, Gallegos A, Musi N, Kumar AP. Nexrutine ® preserves muscle mass similar to exercise in prostate cancer mouse model. Physiol Rep 2019; 7:e14217. [PMID: 31456341 PMCID: PMC6712237 DOI: 10.14814/phy2.14217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 12/31/2022] Open
Abstract
Muscle loss is a debilitating side effect to prostate cancer (PCa) experienced by nearly 60% of men. The purpose of this study was to test the hypothesis that Nexrutine® , a bark extract from the Phellodendrum amurense, can protect against prostate cancer induced muscle loss in a similar manner as exercise, using the transgenic adenocarcinoma of mouse prostate (TRAMP) model. Forty-five, 8- to 10-week old TRAMP mice were randomized to either control, Nexrutine® (600 mg/kg pelleted in chow) or exercise (voluntary wheel running). Mice were serially sacrificed at weeks 4, 8, 12, and 20, at which time either the left or right gastrocnemius muscle was harvested, weighted, and frozen. Proteolysis inducing factor (PIF), ubiquitin, and NF-κB concentrations were quantified using ELISA kits. Nexrutine® and exercise were equally able to protect TRAMP mice against PCa-induced muscle loss (P = 0.04). Both interventions decreased intramuscular PIF concentrations at 20 weeks compared to control (P < 0.05). A treatment effect was also observed when all time points were combined with exercise significantly lowering PIF concentrations (P < 0.01). Exercise significantly lowered intramuscular ubiquitin concentrations in weeks 4, 8, and 20 compared to control mice (P < 0.001). A treatment effect was also observed with exercise significantly lowering ubiquitin compared to control mice (P < 0.001). No significant changes were observed for NF-κB. The results of this investigation demonstrate that PCa-induced muscle loss can be attenuated with the herbal supplement Nexrutine® . This investigation provides preliminary evidence to support continued research into Nexrutine® as a potential exercise analog in protecting against muscle loss.
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Affiliation(s)
- Darpan I. Patel
- School of NursingUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
- Barshop Institute for AgingUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
- Mays Cancer Center at UT Health San AntonioSan AntonioTexas
| | - Derek Wallace
- School of NursingUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
| | - Kira Abuchowski
- School of NursingUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
| | - Paul Rivas
- Department of Urology, School of MedicineUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
| | - Amber Gallegos
- School of NursingUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
| | - Nicolas Musi
- Barshop Institute for AgingUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
| | - Addanki Pratap. Kumar
- Mays Cancer Center at UT Health San AntonioSan AntonioTexas
- Department of Urology, School of MedicineUniversity of Texas Health Science Center at San AntonioSan AntonioTexas
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17
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Moreira VM, Almeida D, da Silva Franco CC, Gomes RM, Palma-Rigo K, Prates KV, Tófolo LP, Malta A, Francisco FA, Pavanello A, Previate C, da Silva Silveira S, Ribeiro TA, Martins IP, de Moraes AMP, Matiusso CCI, Saavedra LPJ, de Barros Machado KG, Fabbri Corá T, Gongora A, Cardozo LE, da Silva PHO, Venci R, Vieira E, de Oliveira JC, Miranda RA, de Souza HM, Miksza D, da Costa Lima LD, de Castro-Prado MAA, Rinaldi W, de Freitas Mathias PC. Moderate exercise training since adolescence reduces Walker 256 tumour growth in adult rats. J Physiol 2019; 597:3905-3925. [PMID: 31210356 DOI: 10.1113/jp277645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 05/07/2019] [Indexed: 12/19/2022] Open
Abstract
KEY POINTS Cancer growth, cell proliferation and cachexia index can be attenuated by the beneficial programming effect of moderate exercise training, especially if it begins in adolescence. Walker 256 tumour-bearing rats who started exercise training during adolescence did not revert the basal low glycaemia and insulinaemia observed before tumour cell inoculation. The moderate exercise training improved glucose tolerance and peripheral insulin sensitivity only in rats exercised early in adolescence. The chronic effects of our exercise protocol are be beneficial to prevent cancer cachexia and hold clear potential as a nonpharmacological therapy of insulin sensitization. ABSTRACT We tested the hypothesis that moderate exercise training, performed early, starting during adolescence or later in life during adulthood, can inhibit tumour cell growth as a result of changes in biometric and metabolic markers. Male rats that were 30 and 70 days old performed a treadmill running protocol over 8 weeks for 3 days week-1 , 44 min day-1 and at 55-65% V ̇ O 2 max . After the end of training, a batch of rats was inoculated with Walker 256 carcinoma cells. At 15 days after carcinoma cell inoculation, the tumour was weighed and certain metabolic parameters were evaluated. The data demonstrated that physical performance was better in rats that started exercise training during adolescence according to the final workload and V ̇ O 2 max . Early or later moderate exercise training decreased the cachexia index, cell proliferation and tumour growth; however, the effects were more pronounced in rats that exercised during adolescence. Low glycaemia, insulinaemia and tissue insulin sensitivity was not reverted in Walker 256 tumour-bearing rats who trained during adolescence. Cancer growth can be attenuated by the beneficial programming effect of moderate exercise training, especially if it begins during adolescence. In addition, improvement in glucose-insulin homeostasis might be involved in this process.
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Affiliation(s)
- Veridiana Mota Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Douglas Almeida
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | | | | | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Kelly Valério Prates
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Flávio Andrade Francisco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Carina Previate
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Sandra da Silva Silveira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Isabela Peixoto Martins
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Ana Maria Praxedes de Moraes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Camila Cristina Ianoni Matiusso
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Lucas Paulo Jacinto Saavedra
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Katia Gama de Barros Machado
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Thauany Fabbri Corá
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Adriane Gongora
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Lucas Eduardo Cardozo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Paulo Henrique Olivieri da Silva
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Renan Venci
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Elaine Vieira
- Post-Graduate Program of Physical Education, Catholic University of Brasília, Águas Claras, DF, Brazil
| | | | - Rosiane Aparecida Miranda
- Laboratory of Molecular Endocrinology, Carlos Chagas Filho Biophysis Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Daniele Miksza
- Department of Physiology, State University of Londrina, Londrina, PR, Brazil
| | - Luiz Delmar da Costa Lima
- Superior School of Physical Education and Physical Therapy of Goiás State, State University of Goiás, Goiânia, GO, Brazil
| | - Marialba Avezum Alves de Castro-Prado
- Laboratory of Microorganisms Genetics and Mutagenesis, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Wilson Rinaldi
- Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
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18
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Resveratrol Action on Lipid Metabolism in Cancer. Int J Mol Sci 2019; 20:ijms20112704. [PMID: 31159437 PMCID: PMC6601040 DOI: 10.3390/ijms20112704] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 12/12/2022] Open
Abstract
Cancer diseases have the leading position in human mortality nowadays. The age of oncologic patients is still decreasing, and the entire scientific society is eager for new ways to fight against cancer. One of the most discussed issues is prevention by means of natural substances. Resveratrol is a naturally occurring plant polyphenol with proven antioxidant, anti-inflammatory, and anticancer effects. Tumor cells display specific changes in the metabolism of various lipids. Resveratrol alters lipid metabolism in cancer, thereby affecting storage of energy, cell signaling, proliferation, progression, and invasiveness of cancer cells. At the whole organism level, it contributes to the optimal metabolism extent with respect to the demands of the organism. Thus, resveratrol could be used as a preventive and anticancer agent. In this review, we focus on some of the plethora of lipid pathways and signal molecules which are affected by resveratrol during carcinogenesis.
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19
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Ricardo de Brito Bello S, Naliwaiko K, Vicentini MS, Rossetti FX, Claudio Fernandes L, Messias-Reason IJD. Nutrition and Cancercapsaicin Treatment Reduces Tumor Growth, Tumor Cell Proliferation Ex Vivo and Partially Reverses Cancer Cachexia in Walker 256 Tumor-Bearing Rats. Nutr Cancer 2019; 71:111-117. [PMID: 30741012 DOI: 10.1080/01635581.2018.1557219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Capsaicin (trans-8-methyl-n-vanillyl-6-nonenamide) is the main pungent component found in hot peppers. AIM In this study, we investigated the effect of capsaicin treatment on tumor growth and the metabolic indicators of cachexia in Walker 256 tumor-bearing rats. METHODS Male Wistar rats were inoculated subcutaneously in the right flank with 1 ml of a sterile suspension of 3 × 107 Walker tumor cells. The treated groups received capsaicin intraperitoneal 5 mg/kg body weight for 13 days. RESULTS The tumor weight on Day 14 in the non-treated group was 18 g. The rats also had a body weight loss, hypoglycemia, hyperlactacidemia, hypertriacylglycerolemia, and a depletion in glycogen storage. Treatment with capsaicin decreased tumor growth by 49% and a reversal of triacylglycerol serum. We also found a 32% reduction in tumor cell proliferation ex vivo. Lactate serum concentrations and body weight were lower but did not reach control levels. CONCLUSION The treatment with capsaicin reduces tumor growth and cellular proliferation along with increased apoptosis and partial cachexia reversal.
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Affiliation(s)
- Sérgio Ricardo de Brito Bello
- a Departamento de Fisiologia, Laboratório de Metabolismo Celular , Universidade Federal do Paraná , Curitiba , Brazil
| | - Katya Naliwaiko
- b Departamento de Biologia Celular , Universidade Federal do Paraná , Curitiba , Brazil
| | - Mariana Scudeller Vicentini
- c Faculdades Integradas do Vale do Ribeira , Departamento de Saúde, Coordenação de Nutrição, Registro , Brazil
| | - Francini Xavier Rossetti
- c Faculdades Integradas do Vale do Ribeira , Departamento de Saúde, Coordenação de Nutrição, Registro , Brazil
| | - Luiz Claudio Fernandes
- a Departamento de Fisiologia, Laboratório de Metabolismo Celular , Universidade Federal do Paraná , Curitiba , Brazil
| | - Iara José de Messias-Reason
- d Departamento de Patologia Médica , Hospital das Clínicas, Universidade Federal do Paraná , Curitiba , Brazil
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20
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Eschke RCKR, Lampit A, Schenk A, Javelle F, Steindorf K, Diel P, Bloch W, Zimmer P. Impact of Physical Exercise on Growth and Progression of Cancer in Rodents-A Systematic Review and Meta-Analysis. Front Oncol 2019; 9:35. [PMID: 30805305 PMCID: PMC6370688 DOI: 10.3389/fonc.2019.00035] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/14/2019] [Indexed: 12/14/2022] Open
Abstract
Background: Physical exercise is suspected to reduce cancer risk and mortality. So far, little is known about the underlying mechanisms. Although limited, murine models represent a promising attempt in order to gain knowledge in this field. Objective: A systematic review and meta-analysis examining various treatment protocols was conducted in order to determine the impact of exercise on tumor growth in rodents. Methods: PubMed, Google scholar and System for information on Gray literature in Europe were screened from inception to October 2017. Risk of bias within individual studies was assessed using the Office of Health Assessment and Translation risk of bias rating tool for human and animal trials. The effect of exercise on tumor growth over and above non-exercise control was pooled using random-effects model. Subgroup analyses were conducted to identify potential moderators. Results: The quality of the included 17 articles ranged between "probably low" and "high risk of bias." A significant reduction in tumor growth in exercising animals compared to controls was detected (Hedges' g = -0.40; 95% CI -0.66 to -0.14, p < 0.01) with between-study heterogeneity (τ2 = 0.217, I 2 = 70.28%, p < 0.001). The heterogeneity was partially explained by three moderators representing the in-between group differences of "maximum daily exercise" R 2 = 33% (p < 0.01), "type of cancer administration" R 2 = 28% (p < 0.05), and "training initiation" R 2 = 27% (p < 0.05). Conclusion: This meta-analysis suggests that physical exercise leads to reduction of tumor size in rodents. Since "maximum daily exercise" was found to have at least modest impact on tumor growth, more clinical trials investigating dose-response relationships are needed.
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Affiliation(s)
| | - Amit Lampit
- Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia.,Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Alexander Schenk
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Florian Javelle
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Karen Steindorf
- Division of Physical Activity, Prevention and Cancer, German Cancer Research Center, Heidelberg, Germany
| | - Patrick Diel
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Philipp Zimmer
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany.,Division of Physical Activity, Prevention and Cancer, German Cancer Research Center, Heidelberg, Germany
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21
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Rodrigues FM, Adélio JI, Santana VO, De Marco Ornelas E, de Souza RR, Cardoso CG, da Veiga GL, Fonseca FLA, Maifrino LBM. Physical exercise alters hepatic morphology of low-density lipoprotein receptor knockout ovariectomized mice. Med Mol Morphol 2018; 52:15-22. [PMID: 29934711 DOI: 10.1007/s00795-018-0198-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/18/2018] [Indexed: 02/06/2023]
Abstract
To explore the effects of physical exercise on the liver of animals in menopause, we analyzed the histomorphometric parameters of the hepatic tissue in ovariectomized and dyslipidemic female mice. The animals were distributed in six groups (n = 5): sedentary control (SC), sedentary ovariectomized control (SOC), trained ovariectomized control (TOC), sedentary LDL knockout (LDL-S), sedentary ovariectomized LDL knockout (LDL-SO), and trained ovariectomized LDL knockout (LDL-TO). At the end of the experiment, the liver and the visceral adipose tissue (VAT) of animals were removed for morphometric and stereological studies. In the LDL-S and LDL-SO animals, both sedentary, results showed reduction in the area (µm2) and major and minor diameters (µm) of hepatocytes and reduction in the portions of large hepatocytes, and increase in the percentage of Kupffer cells. The trained group showed a tendency of increase in the area and diameter and in the percentage of hepatocytes, as well significant reduction in the percentage of Kupffer cells and interstitial tissue. We suggested that training can prevent cell and tissue damage caused by the process of increase in hepatic fat, lipoperoxidation, and tissue inflammation in animals with privation of estrogen and dyslipidemia, apparently reflecting a better metabolic response of the hepatic tissue in organisms undergoing training.
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Affiliation(s)
- Franciele Mercúrio Rodrigues
- Stricto Sensu Postgraduate Program in Physical Education and Aging, Universidade São Judas Tadeu, São Paulo, Brazil
| | - Jenifer Inácio Adélio
- Stricto Sensu Postgraduate Program in Physical Education and Aging, Universidade São Judas Tadeu, São Paulo, Brazil
| | - Vanessa Oliveira Santana
- Stricto Sensu Postgraduate Program in Physical Education and Aging, Universidade São Judas Tadeu, São Paulo, Brazil
| | - Elisabeth De Marco Ornelas
- Stricto Sensu Postgraduate Program in Physical Education and Aging, Universidade São Judas Tadeu, São Paulo, Brazil
| | - Romeu Rodrigues de Souza
- Stricto Sensu Postgraduate Program in Physical Education and Aging, Universidade São Judas Tadeu, São Paulo, Brazil
| | - Clever Gomes Cardoso
- Department of Histology, Embryology and Molecular Biology, Universidade Federal de Goiás (UFG), Goiania, Brazil
| | - Glaucia Luciano da Veiga
- Clinical Analysis Laboratory, Faculdade de Medicina do ABC-FMABC2000, Lauro Gomes Avenue, Santo André, SP, CEP 09060-650, Brazil
| | - Fernando Luiz Affonso Fonseca
- Clinical Analysis Laboratory, Faculdade de Medicina do ABC-FMABC2000, Lauro Gomes Avenue, Santo André, SP, CEP 09060-650, Brazil.
- Pharmaceutical Sciences Department of Universidade Federal de São Paulo-Unifesp, Diadema, SP, Brazil.
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22
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Xia Z, Cholewa JM, Zhao Y, Yang Y, Shang H, Jiang H, Su Q, Zanchi NE. A potential strategy for counteracting age-related sarcopenia: preliminary evidence of combined exercise training and leucine supplementation. Food Funct 2018; 8:4528-4538. [PMID: 29099523 DOI: 10.1039/c7fo01181d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Previous research has demonstrated the positive effects of concurrent/combined aerobic and resistance exercise or leucine supplementation on skeletal muscle protein synthesis (MPS) and hypertrophy in aging organisms. However, the effects of a multimodal intervention which combines both aerobic and resistance exercise and leucine supplementation has not been fully elucidated. Eighteen month old and 2 month old C57BL/6 mice were assigned to aging control (AC, n = 8), aging and multimodal intervention (AMI, n = 8) and young control (YC, n = 8). Mice in the YC and AC groups were fed an alanine-rich diet (3.4%), and mice in the AMI group received an isonitrogenous leucine-supplemented (5%) diet in combination with combined aerobic (30 minutes swimming) and resistance exercise training (incremental jumping submersed in water with overload corresponding to 40%-50% body weight) for a total of 4 weeks. The gastrocnemius muscles were dissected for western blotting detection (signaling proteins involved in MPS) and the ex vivo determination of protein synthesis and protein content. The muscle strength of the hind limbs was measured pre-experiment and repeated once per week on Sunday for 4 weeks. Mice in the AC and AMI groups showed lower ex vivo protein synthesis, protein content, expression of signaling proteins involved in MPS, maximal grip strength but higher plasma cortisol compared with the YC group post intervention. When compared to AC mice, the multimodal treatment led to lower activity of Sestrin2, higher expression of PI3K III and the phosphorylation of mTOR, p70S6K and 4E-BP1, as well as higher plasma leucine, wet gastrocnemius muscle weight and muscle weight to body weight ratio. Furthermore, the multimodal intervention induced more pronounced anabolic response such as higher ex vivo protein synthesis rate, total protein content, and myofibrillar fractions in gastrocnemius muscle, and greater maximum grip strength. The present research shows that a multimodal intervention including combined both aerobic and resistance exercise training and 5% leucine supplementation has the potential to maintain skeletal muscle protein synthesis and attenuate losses in muscular strength during the aging process.
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Affiliation(s)
- Z Xia
- Exercise Physiology and Biochemistry Laboratory, College of Physical Education, Jinggangshan University, Ji'an, China
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Hofmann P. Cancer and Exercise: Warburg Hypothesis, Tumour Metabolism and High-Intensity Anaerobic Exercise. Sports (Basel) 2018; 6:sports6010010. [PMID: 29910314 PMCID: PMC5969185 DOI: 10.3390/sports6010010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/24/2018] [Accepted: 01/29/2018] [Indexed: 12/22/2022] Open
Abstract
There is ample evidence that regular moderate to vigorous aerobic physical activity is related to a reduced risk for various forms of cancer to suggest a causal relationship. Exercise is associated with positive changes in fitness, body composition, and physical functioning as well as in patient-reported outcomes such as fatigue, sleep quality, or health-related quality of life. Emerging evidence indicates that exercise may also be directly linked to the control of tumour biology through direct effects on tumour-intrinsic factors. Beside a multitude of effects of exercise on the human body, one underscored effect of exercise training is to target the specific metabolism of tumour cells, namely the Warburg-type highly glycolytic metabolism. Tumour metabolism as well as the tumour–host interaction may be selectively influenced by single bouts as well as regularly applied exercise, dependent on exercise intensity, duration, frequency and mode. High-intensity anaerobic exercise was shown to inhibit glycolysis and some studies in animals showed that effects on tumour growth might be stronger compared with moderate-intensity aerobic exercise. High-intensity exercise was shown to be safe in patients; however, it has to be applied carefully with an individualized prescription of exercise.
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Affiliation(s)
- Peter Hofmann
- Institute of Sports Sciences, Exercise Physiology, Training & Training Therapy Research Group, University of Graz, Max Mell Allee 11, Graz 8010, Austria.
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Xi SS, Bai XX, Gu L, Bao LH, Yang HM, An W, Wang XM, Zhang H. Metabotropic glutamate receptor 5 mediates the suppressive effect of 6-OHDA-induced model of Parkinson's disease on liver cancer. Pharmacol Res 2017; 121:145-157. [PMID: 28455267 DOI: 10.1016/j.phrs.2017.04.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 03/16/2017] [Accepted: 04/24/2017] [Indexed: 12/29/2022]
Abstract
Numerous epidemiological studies suggested that there is a variable cancer risk in patients with Parkinson's disease (PD). However, the underlying mechanisms remain unclear. In the present study, the role of metabotropic glutamate receptor 5 (mGluR5) has been investigated in 6-hydroxydopamine (6-OHDA)-induced PD combined with liver cancer both in vitro and in vivo. We found that PD cellular model from 6-OHDA-lesioned MN9D cells suppressed the growth, migration, and invasion of Hepa1-6 cells via down-regulation of mGluR5-mediated ERK and Akt pathway. The application of 2-methyl-6-(phenylethyl)-pyridine and knockdown of mGluR5 further decreased the effect on Hepa-1-6 cells when co-cultured with conditioned media. The effect was increased by (S)-3,5-dihydroxyphenylglycine and overexpression of mGluR5. Moreover, more release of glutamate from 6-OHDA-lesioned MN9D cells suppressed mGluR5-mediated effect of Hepa1-6 cells. Application of riluzole eliminated the increased glutamate release induced by 6-OHDA in MN9D cells and aggravated the suppressive effect on Hepa-1-6 cells. In addition, the growth of implanted liver cancer was inhibited in 6-OHDA induced PD-like rats, and was associated with increased glutamate release in the serum and down-regulation of mGluR5 in tumor tissue. Collectively, these results indicate that selective antagonism of glutamate and mGluR5 has a potentially beneficial effect in both liver cancer and PD, and thus may provide more understanding for the clinical investigation and further an additional therapeutic target for these two diseases.
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Affiliation(s)
- Shao-Song Xi
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Xiao-Xu Bai
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Li Gu
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Li-Hui Bao
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Hui-Min Yang
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Wei An
- Department of Cell Biology, School of Basic Medical Sciences, Municipal Laboratory for Liver Protection and Regulation of Regeneration, Capital Medical University, Beijing 100069, China
| | - Xiao-Min Wang
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Hong Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, China.
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Khamoui AV, Park BS, Kim DH, Yeh MC, Oh SL, Elam ML, Jo E, Arjmandi BH, Salazar G, Grant SC, Contreras RJ, Lee WJ, Kim JS. Aerobic and resistance training dependent skeletal muscle plasticity in the colon-26 murine model of cancer cachexia. Metabolism 2016; 65:685-698. [PMID: 27085776 DOI: 10.1016/j.metabol.2016.01.014] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 01/14/2016] [Accepted: 01/29/2016] [Indexed: 12/20/2022]
Abstract
PURPOSE The appropriate mode of exercise training for cancer cachexia is not well-established. Using the colon-26 (C26) mouse model of cancer cachexia, we defined and compared the skeletal muscle responses to aerobic and resistance training. METHODS Twelve-month old Balb/c mice were initially assigned to control, aerobic training (AT; wheel running), or resistance training (RT; ladder climbing) (n=16-17/group). After 8weeks of training, half of each group was injected with C26 tumor cells, followed by 3 additional weeks of training. Body composition and neuromuscular function was evaluated pre- and post-training. Muscles were collected post-training and analyzed for fiber cross-sectional area (CSA), Akt-mTOR signaling, and expression of insulin-like growth factor-I (IGF-I) and myogenic regulatory factors. RESULTS Total body mass decreased (p<0.05) in C26 (-8%), AT+C26 (-18%), and RT+C26 (-15%) but not control. Sensorimotor function declined (p<0.05) in control (-16%), C26 (-13%), and RT+C26 (-23%) but not AT+C26. Similarly, strength/body weight decreased (p<0.05) in control (-7%), C26 (-21%), and RT+C26 (-10%) but not AT+C26. Gastrocnemius mass/body weight tended to be greater in AT+C26 vs. C26 (+6%, p=0.09). Enlargement of the spleen was partially corrected in AT+C26 (-27% vs. C26, p<0.05). Fiber CSA was lower in all C26 groups vs. control (-32% to 46%, p<0.05); however, the effect size calculated from C26 and AT+C26 was large (+24%, d=1.04). Phosphorylated levels of mTOR in AT+C26 exceeded C26 (+32%, p<0.05). RT+C26 showed greater mRNA expression (p<0.05) of IGF-IEa (+79%) and myogenin (+126%) with a strong tendency for greater IGF-IEb (+127%, p=0.069) vs. CONCLUSIONS Aerobic or resistance training was unable to prevent tumor-induced body weight loss. However, aerobic training may have preserved function, reduced the inflammatory response of the spleen, and marginally rescued muscle mass possibly through activation of mTOR. Aerobic training may therefore have therapeutic value for patients with cancer cachexia. In contrast, resistance training induced the expression of genes associated with muscle damage and repair. This gene response may be supportive of excessive stress generated by high resistance loading in a tumor-bearing state.
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Affiliation(s)
- Andy V Khamoui
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA; The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA
| | - Bong-Sup Park
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Do-Houn Kim
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA; The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA
| | - Ming-Chia Yeh
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA; The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA
| | - Seung-Lyul Oh
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Marcus L Elam
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA; The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA
| | - Edward Jo
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA; The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA; Department of Kinesiology and Health Promotion, California State Polytechnic University, Pomona, CA, USA
| | - Bahram H Arjmandi
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA; The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA
| | - Gloria Salazar
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Samuel C Grant
- The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA; Department of Chemical and Biomedical Engineering and The National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA
| | - Robert J Contreras
- Department of Psychology and Program in Neuroscience, Florida State University, Tallahassee, FL, USA
| | - Won Jun Lee
- Department of Exercise Science, Ewha Womans University, Seoul, Republic of Korea
| | - Jeong-Su Kim
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA; The Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA.
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Abreu P, Mendes SVD, Leal-Cardoso JH, Ceccatto VM. Anaerobic threshold employed on exercise training prescription and performance assessment for laboratory rodents: A short review. Life Sci 2016; 151:1-6. [DOI: 10.1016/j.lfs.2016.02.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 01/08/2023]
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Saran U, Humar B, Kolly P, Dufour JF. Hepatocellular carcinoma and lifestyles. J Hepatol 2016; 64:203-14. [PMID: 26341826 DOI: 10.1016/j.jhep.2015.08.028] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/19/2015] [Accepted: 08/24/2015] [Indexed: 12/31/2022]
Abstract
The majority of hepatocellular carcinoma occurs over pre-existing chronic liver diseases that share cirrhosis as an endpoint. In the last decade, a strong association between lifestyle and hepatocellular carcinoma has become evident. Abundance of energy-rich food and sedentary lifestyles have caused metabolic conditions such as obesity and diabetes mellitus to become global epidemics. Obesity and diabetes mellitus are both tightly linked to non-alcoholic fatty liver disease and also increase hepatocellular carcinoma risk independent of cirrhosis. Emerging data suggest that physical activity not only counteracts obesity, diabetes mellitus and non-alcoholic fatty liver disease, but also reduces cancer risk. Physical activity exerts significant anticancer effects in the absence of metabolic disorders. Here, we present a systematic review on lifestyles and hepatocellular carcinoma.
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Affiliation(s)
- Uttara Saran
- Hepatology, Department of Clinical Research, University of Berne, Berne, Switzerland; University Clinic of Visceral Surgery and Medicine, Inselspital Berne, Berne, Switzerland
| | - Bostjan Humar
- Department of Visceral & Transplantation Surgery, University Hospital Zürich, Zürich, Switzerland
| | - Philippe Kolly
- Hepatology, Department of Clinical Research, University of Berne, Berne, Switzerland; University Clinic of Visceral Surgery and Medicine, Inselspital Berne, Berne, Switzerland
| | - Jean-François Dufour
- Hepatology, Department of Clinical Research, University of Berne, Berne, Switzerland; University Clinic of Visceral Surgery and Medicine, Inselspital Berne, Berne, Switzerland.
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28
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Spontaneous Physical Activity Downregulates Pax7 in Cancer Cachexia. Stem Cells Int 2015; 2016:6729268. [PMID: 27034684 PMCID: PMC4807049 DOI: 10.1155/2016/6729268] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/02/2015] [Accepted: 09/04/2015] [Indexed: 02/06/2023] Open
Abstract
Emerging evidence suggests that the muscle microenvironment plays a prominent role in cancer cachexia. We recently showed that NF-kB-induced Pax7 overexpression impairs the myogenic potential of muscle precursors in cachectic mice, suggesting that lowering Pax7 expression may be beneficial in cancer cachexia. We evaluated the muscle regenerative potential after acute injury in C26 colon carcinoma tumor-bearing mice and healthy controls. Our analyses confirmed that the delayed muscle regeneration observed in muscles form tumor-bearing mice was associated with a persistent local inflammation and Pax7 overexpression. Physical activity is known to exert positive effects on cachectic muscles. However, the mechanism by which a moderate voluntary exercise ameliorates muscle wasting is not fully elucidated. To verify if physical activity affects Pax7 expression, we hosted control and C26-bearing mice in wheel-equipped cages and we found that voluntary wheel running downregulated Pax7 expression in muscles from tumor-bearing mice. As expected, downregulation of Pax7 expression was associated with a rescue of muscle mass and fiber size. Our findings shed light on the molecular basis of the beneficial effect exerted by a moderate physical exercise on muscle stem cells in cancer cachexia. Furthermore, we propose voluntary exercise as a physiological tool to counteract the overexpression of Pax7 observed in cancer cachexia.
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29
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Malicka I, Siewierska K, Pula B, Kobierzycki C, Haus D, Paslawska U, Cegielski M, Dziegiel P, Podhorska-Okolow M, Wozniewski M. The effect of physical training on the N-methyl-N-nitrosourea-induced mammary carcinogenesis of Sprague-Dawley rats. Exp Biol Med (Maywood) 2015; 240:1408-15. [PMID: 25990440 DOI: 10.1177/1535370215587532] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 04/13/2015] [Indexed: 12/21/2022] Open
Abstract
The impact of physical activity on carcinogenesis has been demonstrated in many studies. Taking into account the discrepant results of physical exercise on the cell proliferation and apoptosis of breast cancer, we aimed to examine the impact of physical training on N-methyl-N-nitrosourea-(MNU)-induced mammary carcinogenesis. Fifty female rats were divided into four groups according to the intensity of physical activity they undertook. The number of developed tumors, tumor volume, and histopathological diagnoses were noted. Apoptosis and cell proliferation were studied by the number of TUNEL-positive and Ki-67-expressing cells. We demonstrated a statistically significant decrease in the tumor number between all trained groups and the control group. The results were most pronounced in the group with a moderate intensity of training. Moreover, we showed a decrease in tumor volume as training intensity increased, though the differences were not statistically significant. The mean number of TUNEL-positive cancer cells was significantly higher in the training groups than in the control group. These data suggest that physical training, especially of moderate intensity, may alleviate MNU-induced mammary carcinogenesis. The results could suggest that physical exercise-induced apoptosis may be a protective mechanism.
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Affiliation(s)
- Iwona Malicka
- Department of Physiotherapy, Wrocław University of Physical Education, Wroclaw 51-612, Poland
| | - Katarzyna Siewierska
- Department of Physiotherapy, Wrocław University of Physical Education, Wroclaw 51-612, Poland
| | - Bartosz Pula
- Department of Histology and Embryology, Medical University, Wroclaw 51-612, Poland
| | | | - Dominik Haus
- Department of Histology and Embryology, Medical University, Wroclaw 51-612, Poland
| | - Urszula Paslawska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs, and Cats, University of Environmental and Life Sciences, Wroclaw 51-612, Poland
| | - Marek Cegielski
- Department of Histology and Embryology, Medical University, Wroclaw 51-612, Poland
| | - Piotr Dziegiel
- Department of Physiotherapy, Wrocław University of Physical Education, Wroclaw 51-612, Poland Department of Histology and Embryology, Medical University, Wroclaw 51-612, Poland
| | | | - Marek Wozniewski
- Department of Physiotherapy, Wrocław University of Physical Education, Wroclaw 51-612, Poland
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Mikhaylova M, Schumacher A, Borutzki C, Neumann JR, Macharadze T, El-Mousleh T, Wahle P, Zenclussen AC, Kreutz MR. Analysis of Y-P30/Dermcidin expression and properties of the Y-P30 peptide. BMC Res Notes 2014; 7:400. [PMID: 24969620 PMCID: PMC4082292 DOI: 10.1186/1756-0500-7-400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 06/20/2014] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND The survival promoting peptide Y-P30 has a variety of neuritogenic and neuroprotective effects in vitro and in vivo. In previous work we reported the expression of Y-P30/dermcidin in maternal peripheral blood mononuclear cells (PBMCs) and the transport of the protein to the fetal brain. In this study we analyzed hormonal regulation of Y-P30 in human immune cells and expression of Y-P30 in the placenta. We further studied the stability and secretion of the Y-P30 peptide. RESULTS We found indications that Y-P30 might be produced in human placenta. The Y-P30 mRNA was rarely found in isolated human PBMCs and alpha-feto-protein, human chorionic gonadotropin as well as estradiol combined with progesterone could not induce Y-P30 expression. Y-P30 was found to be extraordinarily stable; therefore, contamination with the peptide and the Y-P30/Dermcidin precursor mRNA is a serious concern in experiments looking at the expression of Y-P30/Dermcidin. In cultured cell lines and primary neurons we found that Y-P30 could be released, but neuronal uptake of Y-P30 was not observed. CONCLUSIONS Our data suggest that a source of Y-P30 apart from eccrine glands might be the placenta. The peptide can be secreted together with the signaling peptide and it might reach the fetal brain where it can exert its neuritogenic functions by binding to neuronal membranes.
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Affiliation(s)
| | | | | | | | | | | | | | - Ana C Zenclussen
- RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany.
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Goh J, Ladiges WC. Exercise enhances wound healing and prevents cancer progression during aging by targeting macrophage polarity. Mech Ageing Dev 2014; 139:41-8. [PMID: 24932991 DOI: 10.1016/j.mad.2014.06.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 04/28/2014] [Accepted: 06/04/2014] [Indexed: 12/14/2022]
Abstract
Physical activity, which can include regular and repetitive exercise training, has been shown to decrease the incidence of age-related diseases. Aging is characterized by aberrant immune responses, including impaired wound healing and increased cancer risk. The behavior and polarized phenotype of tissue macrophages are distinct between young and old organisms. The balance of M1 and M2 macrophages is altered in the aged tissue microenvironment, with a tilt towards an M2-dominant macrophage population, as well as its associated signaling pathways. These M2-type responses may result in unresolved inflammation and create an environment that impairs wound healing and is favorable for cancer growth. We discuss the concept that exercise training can improve the regulation of macrophage polarization and normalize the inflammatory process, and thereby exert anticancer effects and enhance wound healing in older humans.
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Affiliation(s)
- Jorming Goh
- Interdisciplinary Program in Nutritional Sciences, University of Washington, Seattle, WA, USA; Department of Comparative Medicine, University of Washington, Seattle, WA, USA
| | - Warren C Ladiges
- Department of Comparative Medicine, University of Washington, Seattle, WA, USA.
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Landgraf P, Mikhaylova M, Macharadze T, Borutzki C, Zenclussen AC, Wahle P, Kreutz MR. Binding of Y-P30 to syndecan 2/3 regulates the nuclear localization of CASK. PLoS One 2014; 9:e85924. [PMID: 24498267 PMCID: PMC3911912 DOI: 10.1371/journal.pone.0085924] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 12/03/2013] [Indexed: 12/02/2022] Open
Abstract
The survival promoting peptide Y-P30 has documented neuroprotective effects as well as cell survival and neurite outgrowth promoting activity in vitro and in vivo. Previous work has shown that multimerization of the peptide with pleiotrophin (PTN) and subsequent binding to syndecan (SDC) -2 and -3 is involved in its neuritogenic effects. In this study we show that Y-P30 application regulates the nuclear localization of the SDC binding partner Calcium/calmodulin-dependent serine kinase (CASK) in neuronal primary cultures during development. In early development at day in vitro (DIV) 8 when mainly SDC-3 is expressed supplementation of the culture medium with Y-P30 reduces nuclear CASK levels whereas it has the opposite effect at DIV 18 when SDC-2 is the dominant isoform. In the nucleus CASK regulates gene expression via its association with the T-box transcription factor T-brain-1 (Tbr-1) and we indeed found that gene expression of downstream targets of this complex, like the GluN2B NMDA-receptor, exhibits a corresponding down- or up-regulation at the mRNA level. The differential effect of Y-P30 on the nuclear localization of CASK correlates with its ability to induce shedding of the ectodomain of SDC-2 but not -3. shRNA knockdown of SDC-2 at DIV 18 and SDC-3 at DIV 8 completely abolished the effect of Y-P30 supplementation on nuclear CASK levels. During early development a protein knockdown of SDC-3 also attenuated the effect of Y-P30 on axon outgrowth. Taken together these data suggest that Y-P30 can control the nuclear localization of CASK in a SDC-dependent manner.
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Affiliation(s)
- Peter Landgraf
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Marina Mikhaylova
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Tamar Macharadze
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Corinna Borutzki
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Ana-Claudia Zenclussen
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Petra Wahle
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University, Bochum, Germany
| | - Michael R Kreutz
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
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Zhang Y, Li M, Wei L, Zhu L, Hu S, Wu S, Ma S, Gao Y. Differential protein expression in perfusates from metastasized rat livers. Proteome Sci 2013; 11:37. [PMID: 23895178 PMCID: PMC3734188 DOI: 10.1186/1477-5956-11-37] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 06/21/2013] [Indexed: 11/10/2022] Open
Abstract
Background Liver perfusates exhibit theoretical advantages regarding the discovery of disease biomarkers because they contain proteins that readily enter the blood-stream, and perfusion preserves the disease state in its natural context. The purpose of the study is to explore the value of liver perfusate proteome in the biomarker discovery of liver diseases. Results In this study, 86 differentially expressed proteins were identified in perfusates from isolated rat livers metastasized by Walker-256 tumor cells. Among these proteins, 27 were predicted to be secreted, and 59 were intracellular or membrane proteins. Most of the secretory proteins (70.4%) were decreased in metastasized liver perfusates. The main canonical ingenuity pathway to which these secretory proteins belonged was acute phase response, which indicated that the liver-associated immune reaction was damaged by the metastasis. In contrast, most of the intracellular or membrane proteins (86.4%) exhibited higher relative abundances in the metastasized liver perfusates. Some of these proteins, including Rpl21, Atic, Eif3s2, Echs1, Eps15 and Ywhab, have previously been reported to be involved in cancer genesis and progression. As a member of the 14-3-3 protein family, Ywhab plays a key role in cellular proliferation and oncogenic transformation and has been reported to be involved in the development of breast cancer. Its abundance was elevated by 3.5-fold in the metastasized perfusates. Validation by Western blotting revealed a 3.7-fold increase in the abundance of this protein in metastasized plasma. Conclusions These results show that perfusate proteome can be used as an alternative initial resource for biomarker identification, which ultimately requires validation in serum.
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Affiliation(s)
- Yang Zhang
- National Key Laboratory of Medical Molecular Biology, Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China.,Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Menglin Li
- National Key Laboratory of Medical Molecular Biology, Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Lilong Wei
- National Key Laboratory of Medical Molecular Biology, Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Lisi Zhu
- National Key Laboratory of Medical Molecular Biology, Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Siqi Hu
- National Key Laboratory of Medical Molecular Biology, Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Shuzhen Wu
- Core Instrument Facility, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Sucan Ma
- National Key Laboratory of Medical Molecular Biology, Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Youhe Gao
- National Key Laboratory of Medical Molecular Biology, Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
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Gould DW, Lahart I, Carmichael AR, Koutedakis Y, Metsios GS. Cancer cachexia prevention via physical exercise: molecular mechanisms. J Cachexia Sarcopenia Muscle 2013; 4:111-24. [PMID: 23239116 PMCID: PMC3684702 DOI: 10.1007/s13539-012-0096-0] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 11/14/2012] [Indexed: 01/09/2023] Open
Abstract
Cancer cachexia is a debilitating consequence of disease progression, characterised by the significant weight loss through the catabolism of both skeletal muscle and adipose tissue, leading to a reduced mobility and muscle function, fatigue, impaired quality of life and ultimately death occurring with 25-30 % total body weight loss. Degradation of proteins and decreased protein synthesis contributes to catabolism of skeletal muscle, while the loss of adipose tissue results mainly from enhanced lipolysis. These mechanisms appear to be at least, in part, mediated by systemic inflammation. Exercise, by virtue of its anti-inflammatory effect, is shown to be effective at counteracting the muscle catabolism by increasing protein synthesis and reducing protein degradation, thus successfully improving muscle strength, physical function and quality of life in patients with non-cancer-related cachexia. Therefore, by implementing appropriate exercise interventions upon diagnosis and at various stages of treatment, it may be possible to reverse protein degradation, while increasing protein synthesis and lean body mass, thus counteracting the wasting seen in cachexia.
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Affiliation(s)
- Douglas W Gould
- School of Sport, Performing Arts and Leisure, Department of Physical Activity, Exercise and Health, University of Wolverhampton, Walsall, West Midlands, UK,
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Panveloski-Costa AC, Papoti M, Moreira RJ, Seraphim PM. Respostas lactacidêmicas de ratos ao treinamento intermitente de alta intensidade. REV BRAS MED ESPORTE 2012. [DOI: 10.1590/s1517-86922012000200012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Durante contrações musculares de alta intensidade intervaladas por curtos períodos de tempo há importante participação do metabolismo glicolítico e, consequentemente, aumento das concentrações de lactato sanguíneo. O objetivo do estudo foi avaliar as respostas lactacidêmicas agudas e crônicas de ratos Wistar submetidos a um treinamento intermitente de alta intensidade (salto tipo jump squat) de três sessões semanais, a cada 24h, três séries de 12 repetições com intervalos de 60s entre cada uma. Houve aumento das concentrações de lactato sanguíneo durante a sessão aguda do treinamento (lactacidemia basal vs. lactacidemia após último esforço, P < 0,001). Contrariamente, após seis semanas de treinamento, ocorreu redução de 49% na resposta lactacidêmica ao exercício em relação à primeira sessão, P = 0,0002. O exercício intermitente de alta intensidade intervalado favorece a participação do sistema glicolítico; no entanto, o treinamento intermitente de alta intensidade promove redução das respostas lactacidêmicas, sugerindo melhora da capacidade de ressíntese de fosfocreatina e da biogênese mitocondrial.
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Khamoui AV, Kim JS. Candidate mechanisms underlying effects of contractile activity on muscle morphology and energetics in cancer cachexia. Eur J Cancer Care (Engl) 2011; 21:143-57. [PMID: 21880081 DOI: 10.1111/j.1365-2354.2011.01287.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Skeletal muscle wasting is a prominent pathophysiological feature of cancer cachexia. Recent evidence suggests the manifestation of mitochondrial dysfunction along with a diminished oxidative capacity. These abnormalities have been concurrently observed with impaired muscle force production and the accelerated onset of fatigue in both tumour-bearing animals and cancer patients exhibiting wasting. To address the burden imposed by cachexia, nutritional and pharmacological interventions have been investigated extensively; in contrast, contractile activity-based countermeasures (i.e. exercise training) have been less frequently explored. Although limited, several preclinical studies that implemented contractile activity have reported favourable outcomes such as the retention of muscle mass and the restoration of energetic homeostasis. Even fewer investigations have examined the mechanisms accounting for these protective effects. An experimental approach addressing contractile activity-dependent expression of muscle mass and energy metabolism regulators may yield information that provides mechanistic support for exercise countermeasures. In this review, we present several candidate mechanisms underlying the protective effects of contractile activity as support for exercise countermeasure strategies. Given the limited quantity of data in this area, insights will be derived from studies on contractile activity-dependent modulation of common cellular and molecular events regulating muscle morphology and energetics during other muscle wasting conditions (e.g. sarcopenia).
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Affiliation(s)
- A V Khamoui
- Department of Nutrition, Food and Exercise Sciences, The Florida State University, Tallahassee, FL 32306, USA
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de Lima C, Alves L, Iagher F, Machado AF, Kryczyk M, Yamazaki RK, Brito GAP, Nunes EA, Naliwaiko K, Fernandes LC. Tumor growth reduction in Walker 256 tumor-bearing rats performing anaerobic exercise: participation of Bcl-2, Bax, apoptosis, and peroxidation. Appl Physiol Nutr Metab 2011; 36:533-8. [PMID: 21851206 DOI: 10.1139/h11-047] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Physical activity has been used in cancer prevention and treatment. In this study, we investigated some of the mechanisms by which anaerobic exercise reduces tumor growth. To do so, rats were trained for 8 weeks. Training consisted of jumping in a swimming pool for ten 30-s sets, with a load that was 50% of body weight attached to the back, 4 times per week. At the sixth week, anaerobic exercise trained rats (EX group) were inoculated with a suspension of Walker 256 tumor cells. Tumor weight, apoptotic tumor cells, tumor Bax and Bcl-2 protein expression, tumor lipid peroxidation, and tumor cell proliferation ex vivo were evaluated. Tumor weight was significantly lower in the EX group (∼30%) than in rats that did not undergo training (sedentary group) (p < 0.05). Apoptosis in the tumor cells of EX rats was 2-fold higher than in the tumor cells of sedentary rats; in addition, Bax expression increased by 10% and Bcl-2 decreased by 13% in EX rats. Lipid peroxidation was 4-fold higher in the tumor cells of EX rats than in those of sedentary rats (p < 0.05). Tumor cell proliferation ex vivo was 29% lower in the EX group than in the sedentary group (p < 0.05). In conclusion, Walker 256 tumor-bearing exercised rats presented more tumor cell apoptosis, a higher tumor content of lipid peroxides, pro-apoptotic protein expression balance, and reduced tumor weight and cell proliferation ex vivo, compared with sedentary rats. These events, together, account for the lower tumor growth we observed in the EX rats.
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Affiliation(s)
- Carina de Lima
- Department of Physiology, Federal University of Paraná, Curitiba-PR, Brazil
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Chen MF, Chen HI, Jen CJ. Exercise training upregulates macrophage MKP-1 and affects immune responses in mice. Med Sci Sports Exerc 2011; 42:2173-9. [PMID: 20404768 DOI: 10.1249/mss.0b013e3181e2158d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE Currently, it is unclear how chronic exercise affects immunity. Mitogen-activated protein kinase (MAPK) mediates the production of proinflammatory cytokines, whereas MAPK phosphatase-1 (MKP-1) plays an essential role in intracellular homeostasis by negatively regulating macrophage MAPK activation. We hypothesized that chronic exercise might upregulate macrophage MKP-1 and thus prevent excessive inflammatory responses. METHODS To verify this hypothesis, we compared the basal immune status and lipopolysaccharide (LPS)-evoked immune responses between sedentary and 8-wk treadmill exercise-trained male C57BL/6 mice. RESULTS Although the basal levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were undetectable in the serum of both groups, the exercised mice showed the following immune adaptations in vivo: (i) higher basal MKP-1 mRNA level in peritoneal macrophages, (ii) lower basal p38 MAPK activity and enhanced MKP-1 immunostaining in macrophages, and (iii) lower serum levels of IL-6 and TNF-α and less leukocyte infiltration into peritoneal cavity after systemic administration of LPS when compared with sedentary controls. In addition, when peritoneal macrophages isolated from exercised mice were exposed to LPS in vitro, they showed (i) accelerated MKP-1 protein expression, (ii) reduced p38 MAPK activity, and (iii) reduced cytokine secretion of IL-6, TNF-α, and monocyte chemotactic protein-1. Finally, 2 months of deconditioning completely reversed the exercise-enhanced basal MKP-1 immunostaining in macrophages and the exercise-suppressed cytokine secretion under LPS-evoked conditions. CONCLUSIONS Exercise training upregulated basal macrophage MKP-1 expression, accelerated LPS-evoked MKP-1 up-regulation, and affected LPS-evoked immune responses in mice.
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Affiliation(s)
- Mei-Feng Chen
- Institute of Basic Medical Sciences, National Cheng Kung University Medical College, Tainan, Taiwan
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Combined approach to counteract experimental cancer cachexia: eicosapentaenoic acid and training exercise. J Cachexia Sarcopenia Muscle 2011; 2:95-104. [PMID: 21766055 PMCID: PMC3118004 DOI: 10.1007/s13539-011-0028-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Accepted: 04/20/2011] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND: Cancer cachexia is a syndrome characterized by loss of skeletal muscle protein, depletion of lipid stores, anorexia, weakness, and perturbations of the hormonal homeostasis. Despite several therapeutic approaches described in the past, effective interventions countering cancer cachexia are still lacking. METHODS: The present work was aimed to verify the ability of eicosapentaenoic acid (EPA) to prevent the muscle depletion in Lewis lung carcinoma-bearing mice and to test the ability of endurance exercise training to increase the EPA effect. RESULTS: EPA alone did not prevent the muscle loss induced by tumor growth while the combination with exercise induced a partial rescue of muscle strength and mass. Moreover, the association of EPA and exercise reduced the dramatic PAX-7 accumulation and stimulated the increase of PCG-1 protein. CONCLUSIONS: Overall, the present data suggest that exercise is an effective tool that should be added for combined therapeutic approaches against cancer cachexia. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s13539-011-0028-4) contains supplementary material, which is available to authorized users.
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Current World Literature. Curr Opin Support Palliat Care 2009; 3:305-12. [DOI: 10.1097/spc.0b013e3283339c93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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