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Vikmoen O, Strandberg E, Svindland KV, Henriksson A, Mazzoni AS, Johansson B, Jönsson J, Karakatsanis A, Annebäck M, Kudrén D, Lindman H, Wärnberg F, Berntsen S, Demmelmaier I, Nordin K, Raastad T. Effects of heavy-load strength training during (neo-)adjuvant chemotherapy on muscle strength, muscle fiber size, myonuclei, and satellite cells in women with breast cancer. FASEB J 2024; 38:e23784. [PMID: 38953567 DOI: 10.1096/fj.202400634r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/30/2024] [Accepted: 06/19/2024] [Indexed: 07/04/2024]
Abstract
To investigate the effects of heavy-load strength training during (neo-)adjuvant chemotherapy in women with breast cancer on muscle strength, body composition, muscle fiber size, satellite cells, and myonuclei. Women with stage I-III breast cancer were randomly assigned to a strength training group (ST, n = 23) performing supervised heavy-load strength training twice a week during chemotherapy, or a usual care control group (CON, n = 17). Muscle strength and body composition were measured and biopsies from m. vastus lateralis collected before the first cycle of chemotherapy (T0) and after chemotherapy and training (T1). Muscle strength increased significantly more in ST than in CON in chest-press (ST: +10 ± 8%, p < .001, CON: -3 ± 5%, p = .023) and leg-press (ST: +11 ± 8%, p < .001, CON: +3 ± 6%, p = .137). Both groups reduced fat-free mass (ST: -4.9 ± 4.0%, p < .001, CON: -5.2 ± 4.9%, p = .004), and increased fat mass (ST: +15.3 ± 16.5%, p < .001, CON: +16.3 ± 19.8%, p = .015) with no significant differences between groups. No significant changes from T0 to T1 and no significant differences between groups were observed in muscle fiber size. For myonuclei per fiber a non-statistically significant increase in CON and a non-statistically significant decrease in ST in type I fibers tended (p = .053) to be different between groups. Satellite cells tended to decrease in ST (type I: -14 ± 36%, p = .097, type II: -9 ± 55%, p = .084), with no changes in CON and no differences between groups. Strength training during chemotherapy improved muscle strength but did not significantly affect body composition, muscle fiber size, numbers of satellite cells, and myonuclei compared to usual care.
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Affiliation(s)
- Olav Vikmoen
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Emelie Strandberg
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | | | - Anna Henriksson
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Anne-Sophie Mazzoni
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | - Birgitta Johansson
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Janniz Jönsson
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
- Department of Surgical Sciences, Faculty of Medicine, Uppsala University, Uppsala, Sweden
| | - Andreas Karakatsanis
- Department of Surgical Sciences, Faculty of Medicine, Uppsala University, Uppsala, Sweden
- Section for Breast Surgery, Department of Surgery, Uppsala University Hospital, Uppsala, Sweden
| | - Matilda Annebäck
- Department of Surgical Sciences, Faculty of Medicine, Uppsala University, Uppsala, Sweden
| | - David Kudrén
- Department of Oncology, Södersjukhuset, Stockholm, Sweden
| | - Henrik Lindman
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Fredrik Wärnberg
- Institute of Clinical Sciences, Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden
- Department of Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Sveinung Berntsen
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
- Department of Sport Science and Physical Education, University of Agder, Kristiansand, Norway
| | - Ingrid Demmelmaier
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
- Department of Sport Science and Physical Education, University of Agder, Kristiansand, Norway
| | - Karin Nordin
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | - Truls Raastad
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
- Department of Sport Science and Physical Education, University of Agder, Kristiansand, Norway
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2
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Tsuda T, Davidow K, D'Aloisio G, Quillen J. Surveillance cardiopulmonary exercise testing can risk-stratify childhood cancer survivors: underlying pathophysiology of poor exercise performance and possible room for improvement. CARDIO-ONCOLOGY (LONDON, ENGLAND) 2023; 9:42. [PMID: 37978571 PMCID: PMC10655267 DOI: 10.1186/s40959-023-00193-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Asymptomatic childhood cancer survivors (CCS) frequently show decreased exercise performance. Poor exercise performance may indicate impaired future cardiovascular health. METHODS Cardiopulmonary exercise testing (CPET) was performed in asymptomatic off-treatment CCS (age ≥ 10 years). Patients were divided into Normal and Poor performance groups by %predicted maximum VO2 at 80%. Both peak and submaximal CPET values were analyzed. RESULTS Thirty-eight males (19 Normal, 19 Poor) and 40 females (18 Normal, 22 Poor) were studied. Total anthracycline dosage was comparable among 4 groups. The body mass index (BMI), although normal, and weight were significantly higher in Poor groups. Peak heart rate (HR) and peak respiratory exchange ratio (RER) were comparable in all four groups. Peak work rate (pWR)/kg, peak oxygen consumption (pVO2)/kg, peak oxygen pulse (pOP)/kg, and ventilatory anaerobic threshold (VAT)/kg were significantly lower, whereas heart rate (HR) increase by WR/kg (ΔHR/Δ[WR/kg] was significantly higher in Poor groups. Simultaneously plotting of weight & pVO2 and ΔHR/ΔWR & ΔVO2/ΔHR revealed a distinct difference between the Normal and Poor groups in both sexes, suggesting decreased skeletal muscle mass and decreased stroke volume reserve, respectively, in Poor CCS. The relationship between VAT and pVO2 was almost identical between the two groups in both sexes. Ventilatory efficiency was mildly diminished in the Poor groups. CONCLUSIONS Decreased skeletal muscle mass, decreased stroke volume reserve, and slightly decreased ventilatory efficiency characterize Poor CCS in both sexes. This unique combined CPET analysis provides useful clinical biomarkers to screen subclinical cardiovascular abnormality in CCS and identifies an area for improvement.
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Affiliation(s)
- Takeshi Tsuda
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA.
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, 19107, USA.
| | - Kimberly Davidow
- Nemours Center for Cancer and Blood Disorders, Nemours Children's Health, Wilmington, DE, 19803, USA
| | - Gina D'Aloisio
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA
| | - Joanne Quillen
- Nemours Center for Cancer and Blood Disorders, Nemours Children's Health, Wilmington, DE, 19803, USA
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3
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Cayot TE, Herbert B, Klika RJ. Treatment side affects exercising microvascular oxygenation response in active breast cancer survivors: A pilot study. Clin Physiol Funct Imaging 2023; 43:96-102. [PMID: 36376074 DOI: 10.1111/cpf.12796] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/19/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022]
Abstract
Cancer treatment is associated with cardiovascular toxicity, skeletal muscle dysfunction and interruptions in mitochondrial respiration. Microvascular oxygenation responses, measured via near-infrared spectroscopy (NIRS), at peak exercise intensity has previously been associated with aerobic capacity. Specifically, the greater magnitude of microvascular deoxygenation observed at peak exercise intensity has been associated with higher aerobic capacity. Therefore, a pilot study investigated if diagnosis side (uninvolved side, treatment side) and/or exercise side (paddle side, non-paddle side) affected microvascular oxygenation responses at peak intensity during paddle exercise. Thirty-three breast cancer survivors (age = 57 ± 9 years, height = 1.64 ± 0.05 m, weight = 76.5 ± 15.6 kg, 7 ± 7 years since treatment) who also competed as dragon boat racers performed a unilateral (paddle), discontinuous graded exercise test (2-min exercise, 1-min rest) on a rowing ergometer to volitional fatigue. Tissue oxygenation saturation (StO2DIFF ) and total haemoglobin concentration (total[heme]DIFF ) responses at peak exercise intensity were measured bilaterally from the posterior deltoids using NIRS. Two-way analysis of variance determined if diagnosis side and/or exercise side effected StO2DIFF or total[heme]DIFF . Diagnosis side elicited a moderate effect (effect size = 0.66) on StO2DIFF , as the treatment side deoxygenated less (-6.0 ± 14.7 ∆BSL) compared to the uninvolved side (-16.9 ± 16.9 ∆BSL) at peak exercise intensity. No other significant main effects or interactions were observed for StO2DIFF or total[heme]DIFF . The pilot findings suggest that the ability of the exercising muscle to use oxygen for the purpose of mitochondrial oxidative respiration may be impaired on the treatment side.
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Affiliation(s)
- Trent E Cayot
- Department of Kinesiology, Health, and Sport Sciences, University of Indianapolis, Indianapolis, Indiana, USA
| | - Brooklyn Herbert
- Department of Kinesiology, Health, and Sport Sciences, University of Indianapolis, Indianapolis, Indiana, USA
| | - Riggs J Klika
- Department of Kinesiology, Health, and Sport Sciences, University of Indianapolis, Indianapolis, Indiana, USA.,Aspen Cancer Survivor Center, Aspen, Colorado, USA
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Cardiopulmonary Exercise Testing Characterizes Silent Cardiovascular Abnormalities in Asymptomatic Pediatric Cancer Survivors. Pediatr Cardiol 2023; 44:344-353. [PMID: 36076098 DOI: 10.1007/s00246-022-02995-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/22/2022] [Indexed: 02/07/2023]
Abstract
Late-onset cardiovascular complications are serious concerns for pediatric cancer survivors (PCS) including those who are asymptomatic. We investigated whether cardiopulmonary exercise testing (CPET) can delineate the underlying pathophysiology of preclinical cardiovascular abnormalities in PCS. We examined CPET data via cycle ergometer in asymptomatic PCS with normal echocardiogram and age-matched controls. Peak and submaximal parameters were analyzed. Fifty-three PCS and 60 controls were studied. Peak oxygen consumption (VO2), peak work rate (WR), and ventilatory anaerobic threshold (VAT) were significantly lower in PCS than controls (1.86 ± 0.53 vs. 2.23 ± 0.61 L/min, 125 ± 45 vs. 154 ± 46 W, and 1.20 ± 0.35 vs. 1.42 ± 0.43 L/min, respectively; all p < 0.01), whereas peak heart rate (HR) and ventilatory efficiency (a slope of minute ventilation over CO2 production or ∆VE/∆VCO2) were comparable. Peak respiratory exchange ratio (RER) was significantly higher in PCS (p = 0.0006). Stroke volume (SV) reserve was decreased in PCS, indicated by simultaneous higher dependency on HR (higher ∆HR/∆WR) and lower peak oxygen pulse (OP). Twelve PCS with high peak RER (≥ 1.3) revealed lower pVO2 and VAT than the rest of PCS despite higher ventilatory efficiency (lower ∆VE/∆VCO2), suggesting fundamental deficiency in oxygen utilization in some PCS. Poor exercise performance in PCS may be mainly attributed to limited stroke volume reserve, but the underlying pathophysiology is multifactorial. Combined assessment of peak and submaximal CPET parameters provided critical information in delineating underlying exercise physiology of PCS.
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5
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Al-Hazmi GH, Refat MS, Alshammari KF, Kubra KT, Shahat A. Efficient toxic doxorubicin hydrochloride removal from aqueous solutions using facial alumina nanorods. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Larsen EH, Mellblom AV, Larsen MH, Ruud E, Thorsen L, Petersen NN, Larsen HB, Fridh MK, Lie HC. Perceived barriers and facilitators to physical activity in childhood cancer survivors and their parents: A large-scale interview study from the International PACCS Study. Pediatr Blood Cancer 2023; 70:e30056. [PMID: 36251019 DOI: 10.1002/pbc.30056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 12/25/2022]
Abstract
BACKGROUND Physical activity (PA) may reduce risks of late effects in childhood cancer survivors, yet many have low activity levels. Using the WHO's International Classification of Functioning, Disability, and Health for Children and Youths (ICF-CY) as a conceptual framework, we aimed to identify perceived barriers and facilitators to PA in young survivors and their parents. DESIGN/METHODS We conducted individual, semi-structured interviews with 63 survivors, aged 9-18 years, ≥1-year off treatment, and 68 parents, recruited from three pediatric oncology departments in Norway and Denmark. Interviews were analyzed inductively using thematic analysis to identify barriers and facilitators to PA, which were mapped onto the ICF-CY model components; body function/structures, activities, participation, and environmental and personal factors. RESULTS Two-thirds of the survivors described how treatment-related impairments of bodily functions (e.g., fatigue, physical weakness, reduced lung capacity) caused physical limitations, reducing opportunities to participate in PA, especially team sports and school physical education. This resulted in a perceived ability gap between survivors and peers, reducing motivation for PA. These PA barriers were moderated by environmental factors that facilitated or further hindered PA participation (family, peer, and school support). Similarily, personal factors also facilitated (acceptance, motivation, goal setting) or hindered (anxiety, low motivation, and lack of trust) PA participation. CONCLUSION Treatment-related long-term or late effects represented significant barriers to PA as their functional consequences reduced survivors' capacities and capabilities to be active. Environmental and personal factors acting as facilitators or further barriers to PA were identified. Applying the ICF-CY framework in clinical practice could help to enable PA participation.
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Affiliation(s)
- Elna Hamilton Larsen
- Department of Behavioural Sciences in Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Paediatric Medicine, Oslo University Hospital, Rikshospitalet, Norway
| | - Anneli Viktoria Mellblom
- Department of Behavioural Sciences in Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway.,Regional Centre for Child and Adolescent Mental Health Eastern and Southern Norway (RBUP), Oslo, Norway
| | - Marie Hamilton Larsen
- Department of Behavioural Sciences in Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ellen Ruud
- Department of Paediatric Medicine, Oslo University Hospital, Rikshospitalet, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lene Thorsen
- Department of Oncology, National Advisory Unit on Late Effects after Cancer Treatment, Oslo University Hospital, Oslo, Norway.,Department for Clinical Service, Division of Cancer Medicine, Oslo University Hospital, Oslo, Norway
| | - Natasha Nybro Petersen
- Department of Pediatrics and Adolescents Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Hanne Baekgaard Larsen
- Department of Pediatrics and Adolescents Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark.,Faculty of Health Sciences, University of Copenhagen and The Pediatric Clinic, Juliane Marie Centre, Rigshospitalet, Copenhagen, Denmark
| | - Martin Kaj Fridh
- Department of Pediatrics and Adolescents Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Hanne Cathrine Lie
- Department of Behavioural Sciences in Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
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7
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Halle JL, Counts BR, Zhang Q, Carson JA. Short duration treadmill exercise improves physical function and skeletal muscle mitochondria protein expression after recovery from FOLFOX chemotherapy in male mice. FASEB J 2022; 36:e22437. [PMID: 35816153 DOI: 10.1096/fj.202200460r] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/10/2022] [Accepted: 06/21/2022] [Indexed: 01/05/2023]
Abstract
FOLFOX (5-FU, leucovorin, oxaliplatin) is a chemotherapy treatment for colorectal cancer which induces toxic side effects involving fatigue, weakness, and skeletal muscle dysfunction. There is a limited understanding of the recovery from these toxicities after treatment cessation. Exercise training can improve chemotherapy-related toxicities. However, how exercise accelerates recovery and the dose required for these benefits are not well examined. The purpose of this study was to examine the effect of exercise duration on physical function, muscle mass, and mitochondria protein expression during the recovery from FOLFOX chemotherapy. 12-week-old male mice were administered four cycles of either PBS or FOLFOX over 8-weeks. Outcomes were assessed after the fourth cycle and after either 4 (short-term; STR) or 10 weeks (long-term; LTR) recovery. Subsets of mice performed 14 sessions (6 d/wk, 18 m/min, 5% grade) of 60 min/d (long) or 15 min/d (short duration) treadmill exercise during STR. Red and white gastrocnemius mRNA and protein expression were examined. FOLFOX treatment decreased run time (RT) (-53%) and grip strength (GS) (-9%) compared to PBS. FOLFOX also reduced muscle OXPHOS complexes, COXIV, and VDAC protein expression. At LTR, FOLFOX RT (-36%) and GS (-16%) remained reduced. Long- and short-duration treadmill exercise improved RT (+58% and +56%) without restoring GS in FOLFOX mice. Both exercise durations increased muscle VDAC and COXIV expression in FOLFOX mice. These data provide evidence that FOLFOX chemotherapy induces persistent deficits in physical function that can be partially reversed by short-duration aerobic exercise.
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Affiliation(s)
- Jessica L Halle
- Integrative Muscle Biology Laboratory, Division of Rehabilitation Sciences, College of Health Professions, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Brittany R Counts
- Integrative Muscle Biology Laboratory, Division of Rehabilitation Sciences, College of Health Professions, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Quan Zhang
- Integrative Muscle Biology Laboratory, Division of Rehabilitation Sciences, College of Health Professions, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - James A Carson
- Integrative Muscle Biology Laboratory, Division of Rehabilitation Sciences, College of Health Professions, University of Tennessee Health Science Center, Memphis, Tennessee, USA
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8
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Ho S, York T, Marchese V. Exploring relationships between inspiratory muscle strength and functional capacity in childhood cancer survivors: a pilot study. Pediatr Hematol Oncol 2022; 39:203-214. [PMID: 34404319 DOI: 10.1080/08880018.2021.1960656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Childhood cancer survivors (CCS) experience short- and long-term side effects from cancer treatment that often impair functional capacity. Inspiratory muscle weakness is a potential mechanism for reduced functional capacity. The objective of this pilot study was to examine the relationship between inspiratory muscle strength and functional capacity in 10 CCS. Inspiratory muscle strength was measured by maximal inspiratory pressure (MIP) while functional capacity was measured by the two-minute walk test (2MWT), the physiological cost index and hemodynamic response to exercise according to changes in heart rate, blood pressure and rate-pressure product (RPP). Overall, MIP and 2MWT distance were below predicted values. Hemodynamic responses to the 2MWT were consistent with little variation, except for elevated diastolic blood pressure (DBP) response. MIP had significant relationships with resting DBP (Spearman's rank correlation coefficient [rs] = -0.70; p = 0.03) and DBP response (rs = 0.72; p = 0.02). Time since completion of cancer treatment had a significant positive relationship with RPP response (rs = 0.67; p = 0.03). Inspiratory muscle weakness in childhood cancer could be an indicator of skeletal muscle dysfunction and should be considered when symptoms of dyspnea or poor functional capacity arise. Inspiratory muscle strength was found to be related to changes in blood pressure in CCS. Future studies should further investigate these relationships and the impact of inspiratory muscle training on hemodynamics and functional capacity in CCS.
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Affiliation(s)
- Simon Ho
- Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Teresa York
- Division of Pediatric Hematology/Oncology, University of Maryland School of Medicine, Baltimore, Maryland, USA.,University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, Maryland, USA
| | - Victoria Marchese
- Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, Maryland, USA.,University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, Maryland, USA
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9
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Farhang-Sardroodi S, La Croix MA, Wilkie KP. Chemotherapy-induced cachexia and model-informed dosing to preserve lean mass in cancer treatment. PLoS Comput Biol 2022; 18:e1009505. [PMID: 35312676 PMCID: PMC8989307 DOI: 10.1371/journal.pcbi.1009505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 04/07/2022] [Accepted: 03/01/2022] [Indexed: 11/19/2022] Open
Abstract
Although chemotherapy is a standard treatment for cancer, it comes with significant side effects. In particular, certain agents can induce severe muscle loss, known as cachexia, worsening patient quality of life and treatment outcomes. 5-fluorouracil, an anti-cancer agent used to treat several cancers, has been shown to cause muscle loss. Experimental data indicates a non-linear dose-dependence for muscle loss in mice treated with daily or week-day schedules. We present a mathematical model of chemotherapy-induced muscle wasting that captures this non-linear dose-dependence. Area-under-the-curve metrics are proposed to quantify the treatment’s effects on lean mass and tumour control. Model simulations are used to explore alternate dosing schedules, aging effects, and morphine use in chemotherapy treatment with the aim of better protecting lean mass while actively targeting the tumour, ultimately leading to improved personalization of treatment planning and improved patient quality of life. In this paper we present a novel mathematical model for muscle loss due to cancer chemotherapy treatment. Loss of muscle mass relates to increased drug toxicity and side-effects, and to decreased patient quality of life and survival rates. With our model, we examine the therapeutic efficacy of various dosing schedules with the aim of controlling a growing tumour while also preserving lean mass. Preservation of body composition, in addition to consideration of inflammation and immune interactions, the gut microbiome, and other systemic health measures, may lead to improved patient-specific treatment plans that improve patient quality of life.
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Affiliation(s)
- Suzan Farhang-Sardroodi
- Modelling Infection, and Immunity Lab, Department of Mathematics and Statistics, York University, Toronto, Canada
- Centre for Disease Modelling (CDM), Department of Mathematics and Statistics, York University, Toronto, Canada
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10
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McCastlain K, Howell CR, Welsh CE, Wang Z, Wilson CL, Mulder HL, Easton J, Mertens AC, Zhang J, Yasui Y, Hudson MM, Robison LL, Kundu M, Ness KK. The Association of Mitochondrial Copy Number With Sarcopenia in Adult Survivors of Childhood Cancer. J Natl Cancer Inst 2021; 113:1570-1580. [PMID: 33871611 PMCID: PMC8562958 DOI: 10.1093/jnci/djab084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 04/07/2021] [Accepted: 04/14/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Adult childhood cancer survivors are at risk for frailty, including low muscle mass and weakness (sarcopenia). Using peripheral blood mitochondrial DNA copy number (mtDNAcn) as a proxy for functional mitochondria, this study describes cross-sectional associations between mtDNAcn and sarcopenia among survivors. METHODS Among 1762 adult childhood cancer survivors (51.6% male; median age = 29.4 years, interquartile range [IQR] = 23.3-36.8), with a median of 20.6 years from diagnosis (IQR = 15.2-28.2), mtDNAcn estimates were derived from whole-genome sequencing. A subset was validated by quantitative polymerase chain reaction and evaluated cross-sectionally using multivariable logistic regression for their association with sarcopenia, defined by race-, age-, and sex-specific low lean muscle mass or weak grip strength. All statistical tests were 2-sided. RESULTS The prevalence of sarcopenia was 27.0%, higher among female than male survivors (31.5% vs 22.9%; P < .001) and associated with age at diagnosis; 51.7% of survivors with sarcopenia were diagnosed ages 4-13 years (P = .01). Sarcopenia was most prevalent (39.0%) among central nervous system tumor survivors. Cranial radiation (odds ratio [OR] = 1.84, 95% confidence interval [CI] = 1.32 to 2.59) and alkylating agents (OR = 1.34, 95% CI = 1.04 to 1.72) increased, whereas glucocorticoids decreased odds (OR = 0.72, 95% CI = 0.56 to 0.93) of sarcopenia. mtDNAcn decreased with age (β = -0.81, P = .002) and was higher among female survivors (β = 9.23, P = .01) and among survivors with a C allele at mt.204 (β = -17.9, P = .02). In adjusted models, every standard deviation decrease in mtDNAcn increased the odds of sarcopenia 20% (OR = 1.20, 95% CI = 1.07 to 1.34). CONCLUSIONS A growing body of evidence supports peripheral blood mtDNAcn as a biomarker for adverse health outcomes; however, this study is the first to report an association between mtDNAcn and sarcopenia among childhood cancer survivors.
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Affiliation(s)
- Kelly McCastlain
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Carrie R Howell
- Department of Preventive Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Catherine E Welsh
- Department of Mathematics & Computer Science, Rhodes College, Memphis, TN, USA
| | - Zhaoming Wang
- Department of Computational Biology, St. Jude Children’s Research Hospital, Memphis, TN, USA
- Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Carmen L Wilson
- Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Heather L Mulder
- Department of Computational Biology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - John Easton
- Department of Computational Biology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Ann C Mertens
- Aflac Cancer & Blood Disorders Center at Children’s Healthcare of Atlanta, GA, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Jinghui Zhang
- Department of Computational Biology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Yutaka Yasui
- Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Melissa M Hudson
- Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Leslie L Robison
- Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Mondira Kundu
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Kirsten K Ness
- Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital, Memphis, TN, USA
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11
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Mureşan M, Olteanu D, Filip GA, Clichici S, Baldea I, Jurca T, Pallag A, Marian E, Frum A, Gligor FG, Svera P, Stancu B, Vicaș L. Comparative Study of the Pharmacological Properties and Biological Effects of Polygonum aviculare L. herba Extract-Entrapped Liposomes versus Quercetin-Entrapped Liposomes on Doxorubicin-Induced Toxicity on HUVECs. Pharmaceutics 2021; 13:pharmaceutics13091418. [PMID: 34575493 PMCID: PMC8467102 DOI: 10.3390/pharmaceutics13091418] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/29/2021] [Accepted: 09/03/2021] [Indexed: 12/13/2022] Open
Abstract
This study aimed to evaluate the comparative biological effects of Polygonum aviculare L. herba (PAH) extract and quercetin-entrapped liposomes on doxorubicin (Doxo)-induced toxicity in HUVECs. HUVECs were treated with two formulations of liposomes loaded with PAH extract (L5 and L6) and two formulations of liposomes loaded with quercetin (L3 prepared with phosphatidylcholine and L4 prepared with phosphatidylserine). The results obtained with atomic force microscopy, zeta potential and entrapment liposome efficiency confirmed the interactions of the liposomes with PAH or free quercetin and a controlled release of flavonoids entrapped in all the liposomes. Doxo decreased the cell viability and induced oxidative stress, inflammation, DNA lesions and apoptosis in parallel with the activation of Nrf2 and NF-kB. Free quercetin, L3 and L4 inhibited the oxidative stress and inflammation and reduced apoptosis, particularly L3. Additionally, these compounds diminished the Nrf2 and NF-kB expressions and DNA lesions, principally L4. PAH extract, L5 and L6 exerted antioxidant and anti-inflammatory activities, reduced γH2AX formation and inhibited extrinsic apoptosis and transcription factors activation but to a lesser extent. The loading of quercetin in liposomes increased the cell viability and exerted better endothelial protection compared to free quercetin, especially L3. The liposomes with PAH extract had moderate efficiency, mainly due to the antioxidant and anti-inflammatory effects and the inhibition of extrinsic apoptosis.
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Affiliation(s)
- Mariana Mureşan
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 10 Piata 1 Decembrie Street, 410073 Oradea, Romania;
| | - Diana Olteanu
- Department of Physiology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 1–3 Clinicilor Street, 400006 Cluj-Napoca, Romania; (D.O.); (S.C.); (I.B.)
| | - Gabriela Adriana Filip
- Department of Physiology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 1–3 Clinicilor Street, 400006 Cluj-Napoca, Romania; (D.O.); (S.C.); (I.B.)
- Correspondence: or
| | - Simona Clichici
- Department of Physiology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 1–3 Clinicilor Street, 400006 Cluj-Napoca, Romania; (D.O.); (S.C.); (I.B.)
| | - Ioana Baldea
- Department of Physiology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 1–3 Clinicilor Street, 400006 Cluj-Napoca, Romania; (D.O.); (S.C.); (I.B.)
| | - Tunde Jurca
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 29 Nicolae Jiga Street, 410028 Oradea, Romania; (T.J.); (A.P.); (E.M.); (L.V.)
| | - Annamaria Pallag
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 29 Nicolae Jiga Street, 410028 Oradea, Romania; (T.J.); (A.P.); (E.M.); (L.V.)
| | - Eleonora Marian
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 29 Nicolae Jiga Street, 410028 Oradea, Romania; (T.J.); (A.P.); (E.M.); (L.V.)
| | - Adina Frum
- Faculty of Medicine, Lucian Blaga University Sibiu, Lucian Blaga Street, No. 2A, 550169 Sibiu, Romania; (A.F.); (F.G.G.)
| | - Felicia Gabriela Gligor
- Faculty of Medicine, Lucian Blaga University Sibiu, Lucian Blaga Street, No. 2A, 550169 Sibiu, Romania; (A.F.); (F.G.G.)
| | - Paula Svera
- INCEMC-National Institute for Research and Development in Electrochemistry and Condensed Matter-Timisoara, No. 144 Dr. A. Paunescu Podeanu Street, 300569 Timisoara, Romania;
| | - Bogdan Stancu
- 2nd Department of General Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania;
| | - Laura Vicaș
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 29 Nicolae Jiga Street, 410028 Oradea, Romania; (T.J.); (A.P.); (E.M.); (L.V.)
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Chemotherapy-Induced Myopathy: The Dark Side of the Cachexia Sphere. Cancers (Basel) 2021; 13:cancers13143615. [PMID: 34298829 PMCID: PMC8304349 DOI: 10.3390/cancers13143615] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/11/2021] [Accepted: 07/14/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary In addition to cancer-related factors, anti-cancer chemotherapy treatment can drive life-threatening body wasting in a syndrome known as cachexia. Emerging evidence has described the impact of several key chemotherapeutic agents on skeletal muscle in particular, and the mechanisms are gradually being unravelled. Despite this evidence, there remains very little research regarding therapeutic strategies to protect muscle during anti-cancer treatment and current global grand challenges focused on deciphering the cachexia conundrum fail to consider this aspect—chemotherapy-induced myopathy remains very much on the dark side of the cachexia sphere. This review explores the impact and mechanisms of, and current investigative strategies to protect against, chemotherapy-induced myopathy to illuminate this serious issue. Abstract Cancer cachexia is a debilitating multi-factorial wasting syndrome characterised by severe skeletal muscle wasting and dysfunction (i.e., myopathy). In the oncology setting, cachexia arises from synergistic insults from both cancer–host interactions and chemotherapy-related toxicity. The majority of studies have surrounded the cancer–host interaction side of cancer cachexia, often overlooking the capability of chemotherapy to induce cachectic myopathy. Accumulating evidence in experimental models of cachexia suggests that some chemotherapeutic agents rapidly induce cachectic myopathy, although the underlying mechanisms responsible vary between agents. Importantly, we highlight the capacity of specific chemotherapeutic agents to induce cachectic myopathy, as not all chemotherapies have been evaluated for cachexia-inducing properties—alone or in clinically compatible regimens. Furthermore, we discuss the experimental evidence surrounding therapeutic strategies that have been evaluated in chemotherapy-induced cachexia models, with particular focus on exercise interventions and adjuvant therapeutic candidates targeted at the mitochondria.
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13
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Oncological Children and Well-Being: Occupational Performance and HRQOL Change after Fine Motor Skills Stimulation Activities. Pediatr Rep 2021; 13:383-400. [PMID: 34287368 PMCID: PMC8293420 DOI: 10.3390/pediatric13030046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/24/2021] [Accepted: 06/29/2021] [Indexed: 11/30/2022] Open
Abstract
Cancer children experience long periods of hospitalization, which are associated with limited performance in several developmental domains and participation restrictions in age appropriate occupations. Fine motor abilities represent building blocks in performing daily life skills and have been found to be closely connected with later academic success. Moreover, medical and psychological sequelae for cancer inpatients may result in diminished daily activities functioning, poor perceived health related quality of life (HRQOL), and increase the likelihood of long-term impairments. This study examines the variations in the occupational performance of children hospitalized for acute lymphoblastic leukemia (ALL) after their participation to a stimulation program designed to enhance fine motor skills. Parents reported significant gains in children's motor functioning, a slight improvement in overall occupational performance related to an increase in the area of productivity and self-care, and a better quality of life perception following the stimulation activities. Feasibility of the stimulation program in a health care setting are discussed evaluating its benefits for cancer children and their families.
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14
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Larsen MH, Larsen EH, Ruud E, Mellblom A, Helland S, Lie HC. "I have to do things differently now, but I make it work"-young childhood cancer survivors' experiences of self-management in everyday living. J Cancer Surviv 2021; 16:728-740. [PMID: 34097249 PMCID: PMC9300523 DOI: 10.1007/s11764-021-01066-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/28/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE Living with late effects can affect young childhood cancer survivors' (CCSs) self-management (SM) abilities. In this study, we explored different approaches to SM of everyday life by young CCS. METHODS This is a sub-study of a larger study on Physical Activity among Childhood Cancer Survivors (the PACCS study). We conducted individual interviews with 22 CCS aged 9 to 18 years who were at least 1 year off-treatment. An hybrid inductive-decductive thematic analysis was used. RESULTS Three main themes were identified: (1) managing everyday life with fatigue, (2) building self-management competence, and (3) cancer survivor as part of identity. Late effects, especially fatigue, contributed to a perceived ability gap compared to peers, limiting participation in everyday activities. CCS developed new SM skills to overcome such challenges and pushed themselves physically and mentally to master and balance activities and rest to regain energy. CCS changed activities, adapted their expectations, or legitimized their apparent lack of SM skills to regain a sense of self-efficacy. Managing the impact of cancer on relationships with family and friends also required use of SM strategies. CONCLUSIONS The findings expand our currently limited knowledge of young CCS and SM skills they develop to manage everyday life after treatment completion. These, combined with ongoing support from family and peers, "make it work". IMPLICATIONS FOR CANCER SURVIVORS The perspectives of young CCS illustrate their SM skills and support needs beyond transitioning off-treatment. Conceptualizing this within follow-up care may contribute to a feeling of mastery and increased satisfaction among CCS.
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Affiliation(s)
- Marie H Larsen
- Department of Behavioural Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo (UIO), Postboks 1111, Blindern, 0317, Oslo, Norway.
| | - Elna H Larsen
- Department of Behavioural Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo (UIO), Postboks 1111, Blindern, 0317, Oslo, Norway.,Department of Paediatric Haematology and Oncology, Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Rikshospitalet, Postbox 4950, Nydalen, 0424, Oslo, Norway
| | - Ellen Ruud
- Department of Paediatric Haematology and Oncology, Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Rikshospitalet, Postbox 4950, Nydalen, 0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo (UIO), Postboks 1111, Blindern, 0317, Oslo, Norway
| | - Anneli Mellblom
- Department of Behavioural Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo (UIO), Postboks 1111, Blindern, 0317, Oslo, Norway.,Regional Centre for Child and Adolescent Mental Health Eastern and Southern Norway (RBUP), Postboks 4623 Nydalen, 0405, Oslo, Norway
| | - Sunniva Helland
- The Children and Youth Clinic, Haukeland University Clinic, Jonas Lies vei 65, 5021, Bergen, Norway
| | - Hanne Cathrine Lie
- Department of Behavioural Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo (UIO), Postboks 1111, Blindern, 0317, Oslo, Norway
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15
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Goodenough CG, Partin RE, Ness KK. Skeletal Muscle and Childhood Cancer: Where are we now and where we go from here. AGING AND CANCER 2021; 2:13-35. [PMID: 34541550 PMCID: PMC8445321 DOI: 10.1002/aac2.12027] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 05/03/2021] [Indexed: 12/22/2022]
Abstract
Skeletal muscle (muscle) is essential for physical health and for metabolic integrity, with sarcopenia (progressive muscle mass loss and weakness), a pre-curser of aging and chronic disease. Loss of lean mass and muscle quality (force generation per unit of muscle) in the general population are associated with fatigue, weakness, and slowed walking speed, eventually interfering with the ability to maintain physical independence, and impacting participation in social roles and quality of life. Muscle mass and strength impairments are also documented during childhood cancer treatment, which often persist into adult survivorship, and contribute to an aging phenotype in this vulnerable population. Although several treatment exposures appear to confer increased risk for loss of mass and strength that persists after therapy, the pathophysiology responsible for poor muscle quantity and quality is not well understood in the childhood cancer survivor population. This is partly due to limited access to both pediatric and adult survivor muscle tissue samples, and to difficulties surrounding non-invasive investigative approaches for muscle assessment. Because muscle accounts for just under half of the body's mass, and is essential for movement, metabolism and metabolic health, understanding mechanisms of injury responsible for both initial and persistent dysfunction is important, and will provide a foundation for intervention. The purpose of this review is to provide an overview of the available evidence describing associations between childhood cancer, its treatment, and muscle outcomes, identifying gaps in current knowledge.
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Affiliation(s)
- Chelsea G. Goodenough
- Epidemiology and Cancer Control Department, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Robyn E. Partin
- Epidemiology and Cancer Control Department, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Kirsten K. Ness
- Epidemiology and Cancer Control Department, St. Jude Children’s Research Hospital, Memphis, TN, USA
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16
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Metronomic 5-Fluorouracil Delivery Primes Skeletal Muscle for Myopathy but Does Not Cause Cachexia. Pharmaceuticals (Basel) 2021; 14:ph14050478. [PMID: 34067869 PMCID: PMC8156038 DOI: 10.3390/ph14050478] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 12/22/2022] Open
Abstract
Skeletal myopathy encompasses both atrophy and dysfunction and is a prominent event in cancer and chemotherapy-induced cachexia. Here, we investigate the effects of a chemotherapeutic agent, 5-fluorouracil (5FU), on skeletal muscle mass and function, and whether small-molecule therapeutic candidate, BGP-15, could be protective against the chemotoxic challenge exerted by 5FU. Additionally, we explore the molecular signature of 5FU treatment. Male Balb/c mice received metronomic tri-weekly intraperitoneal delivery of 5FU (23 mg/kg), with and without BGP-15 (15 mg/kg), 6 times in total over a 15 day treatment period. We demonstrated that neither 5FU, nor 5FU combined with BGP-15, affected body composition indices, skeletal muscle mass or function. Adjuvant BGP-15 treatment did, however, prevent the 5FU-induced phosphorylation of p38 MAPK and p65 NF-B subunit, signalling pathways involved in cell stress and inflammatory signalling, respectively. This as associated with mitoprotection. 5FU reduced the expression of the key cytoskeletal proteins, desmin and dystrophin, which was not prevented by BGP-15. Combined, these data show that metronomic delivery of 5FU does not elicit physiological consequences to skeletal muscle mass and function but is implicit in priming skeletal muscle with a molecular signature for myopathy. BGP-15 has modest protective efficacy against the molecular changes induced by 5FU.
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17
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An evaluation of participation restrictions and associated factors via the ICF-CY framework in children with acute lymphoblastic leukemia receiving maintenance chemotherapy. Eur J Pediatr 2021; 180:1081-1088. [PMID: 33063136 DOI: 10.1007/s00431-020-03833-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/14/2020] [Accepted: 10/09/2020] [Indexed: 10/23/2022]
Abstract
Our aim was to determine impairments in physical functions, activity limitations, and participation restrictions with the International Classification of Functioning, Disability and Health version for Children and Youth (ICF-CY) framework in children with acute lymphoblastic leukemia (ALL) receiving treatment. Physical functions were assessed in terms of pain level, fatigue level, handgrip strength, and motor proficiency. Fine motor activities and lower extremity performance were assessed to determine activity limitations. Participation was assessed with a patient-reported questionnaire. Thirty children with ALL (mean age: 8.45 ± 3.33 years) were included. Pain and fatigue level were mild. Poor handgrip strength was found; their mean handgrip strength was 60% of the normative. Fifty-six percent of the children had below-average motor performance. Participation scores were considerably high, except for sport and physical functioning sub-score. Participation level was positively associated with bilateral coordination and duration after diagnosis, while negatively correlated with pain and fatigue level (p ˂ 0.05).Conclusion: The ICF-CY-based evaluation was useful to understand children's limitations in everyday life. Children with ALL need supportive interventions during treatments in terms of physical functioning and participation in activities. Children with ALL with higher pain and fatigue, poor bilateral coordination, and who were in earlier period after diagnosis had higher risk for participation restriction. What is Known: • Children with ALL had physical functioning limitations on treatments. • Participation restrictions were described in children with ALL off treatment. What is New: • The ICY-CY-based health and functioning evaluation allows health care professionals to globally determine limitations of everyday life in children with ALL on treatment. • Impairments in physical functions, pain severity, fatigue severity, and duration after diagnosis are associated with participation to everyday life in children with ALL on treatment.
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18
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Chudoba D, Łudzik K, Jażdżewska M, Wołoszczuk S. Kinetic and Equilibrium Studies of Doxorubicin Adsorption onto Carbon Nanotubes. Int J Mol Sci 2020; 21:E8230. [PMID: 33153137 PMCID: PMC7663511 DOI: 10.3390/ijms21218230] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 02/07/2023] Open
Abstract
This study provides deep insight into the adsorption process of doxorubicin onto different types of carbon nanotubes that have been proved to show attractive properties as a drug delivery system. The main aim of the work was to propose probable adsorption mechanisms and interactions between the anticancer drug and surface of modified and pristine carbon nanotubes at blood pH. The carbon nanotubes were oxidized to optimize the absorbance efficiency relative to that of pristine multiwalled carbon nanotubes. The adsorption isotherm of the modified system was well described by the Temkin equation. It confirms that the adsorption in the system studied involves also hydrogen and covalent bonding and is exothermic in nature. The experimental kinetic curves of adsorption were fitted to different mathematical models to check if the kinetics of doxorubicin adsorption onto the modified multiwalled carbon nanotubes follows a pseudo-second-order model and the chemical sorption is bound to be the rate-limiting. On the basis of the molecular dynamics simulation, it was shown that in vacuo the aggregation tendency of doxorubicin molecules is far more favorable than their adsorption on pristine carbon nanotubes (CNTs). It suggests that only functionalization of the nanotube surface can affect the interaction between doxorubicin and functional groups of the carriers and increases the efficiency of the drug loading process.
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Affiliation(s)
- Dorota Chudoba
- Faculty of Physics, Adam Mickiewicz University, 61-614 Poznan, Poland; (M.J.); (S.W.)
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia;
| | - Katarzyna Łudzik
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia;
- Department of Physical Chemistry, University of Lodz, 91-403 Lodz, Poland
| | - Monika Jażdżewska
- Faculty of Physics, Adam Mickiewicz University, 61-614 Poznan, Poland; (M.J.); (S.W.)
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia;
| | - Sebastian Wołoszczuk
- Faculty of Physics, Adam Mickiewicz University, 61-614 Poznan, Poland; (M.J.); (S.W.)
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19
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Biswas AK, Acharyya S. The Etiology and Impact of Muscle Wasting in Metastatic Cancer. Cold Spring Harb Perspect Med 2020; 10:cshperspect.a037416. [PMID: 31615873 DOI: 10.1101/cshperspect.a037416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Metastasis arises when cancer cells disseminate from their site of origin and invade distant organs. While cancer cells rarely colonize muscle, they often induce a debilitating muscle-wasting condition known as cachexia that compromises feeding, breathing, and cardiac function in metastatic cancer patients. In fact, nearly 80% of metastatic cancer patients experience a spectrum of muscle-wasting states, which deteriorates the quality of life and overall survival of cancer patients. Muscle wasting in cancer results from increased muscle catabolism induced by circulating tumor factors and a systemic metabolic dysfunction. In addition, muscle loss can be exacerbated by the exposure to antineoplastic therapies and the process of aging. With no approved therapies to alleviate cachexia, muscle health, therefore, becomes a key determinant of prognosis, treatment response, and survival in metastatic cancer patients. This review will discuss the current understanding of cancer-associated cachexia and highlight promising therapeutic strategies to treat muscle wasting in the context of metastatic cancers.
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Affiliation(s)
- Anup K Biswas
- Department of Pathology and Cell Biology, Institute for Cancer Genetics, Columbia University, New York, New York 10032, USA
| | - Swarnali Acharyya
- Department of Pathology and Cell Biology, Institute for Cancer Genetics, Columbia University, New York, New York 10032, USA.,Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York 10032, USA.,Herbert Irving Comprehensive Cancer Center, New York, New York 10032, USA
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20
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Tanner L, Keppner K, Lesmeister D, Lyons K, Rock K, Sparrow J. Cancer Rehabilitation in the Pediatric and Adolescent/Young Adult Population. Semin Oncol Nurs 2020; 36:150984. [DOI: 10.1016/j.soncn.2019.150984] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Papalia H, Rochette E, Pereira B, Merlin E, Kanold J, Duché P. Metabolic response to exercise in childhood brain tumor survivors: A pilot controlled study. Pediatr Blood Cancer 2020; 67:e28053. [PMID: 31625676 DOI: 10.1002/pbc.28053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/16/2019] [Accepted: 10/05/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND/OBJECTIVES Survival rates in children diagnosed with malignant brain tumors exceed 70%. A higher risk of dyslipidemia, central obesity, and insulin resistance has been reported among these children. We investigated substrate utilization during submaximal exercise. DESIGN/METHODS Ten brain tumor survivors and 10 healthy children were matched by sex, age, and Tanner stage. Participants completed a submaximal incremental exercise test to determine their fat and carbohydrate oxidation rates. RESULTS The relative oxygen volume (VO2 ) peak was significantly higher in the control group than in the survivors of childhood brain tumors (43.3 ± 11.9 and 32.4 ± 10.2 mL/kg /min, P = .04). At the same relative exercise intensity, there was no difference in the carbohydrate or lipid oxidation rate between the two groups, or in the maximal fat oxidation (MFO) rate, or in the heart rate or percentage of VO2 peak to reach MFO. Healthy children achieved MFO at significantly higher muscular power than did brain tumor survivors (47.9 ± 20.8 and 21.8 ± 9.6 W, P = .003). CONCLUSION Because child brain tumor survivors are less physically fit than healthy children, and substrate utilization during submaximal exercise is not different, physical activity should be promoted for child brain tumor survivors.
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Affiliation(s)
- Honoré Papalia
- Pédiatrie, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Emmanuelle Rochette
- Pédiatrie, CHU Clermont-Ferrand, Clermont-Ferrand, France.,Unité CRECHE, Université Clermont Auvergne, INSERM, CIC 1405, Clermont-Ferrand, France.,Laboratoire IAPS, Université de Toulon, Toulon, France
| | - Bruno Pereira
- Délégation de la Recherche Clinique et Innovations, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Etienne Merlin
- Pédiatrie, CHU Clermont-Ferrand, Clermont-Ferrand, France.,Unité CRECHE, Université Clermont Auvergne, INSERM, CIC 1405, Clermont-Ferrand, France.,Université Clermont Auvergne, INRA, UMR 1019 UNH, ECREIN, Clermont-Ferrand, France
| | - Justyna Kanold
- Pédiatrie, CHU Clermont-Ferrand, Clermont-Ferrand, France.,Unité CRECHE, Université Clermont Auvergne, INSERM, CIC 1405, Clermont-Ferrand, France
| | - Pascale Duché
- Laboratoire IAPS, Université de Toulon, Toulon, France.,Laboratoire des Adaptations Métaboliques en conditions Physiologiques et Physiopathologiques (AME2P), Université Clermont Auvergne, Clermont-Ferrand, France
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22
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Nelson CM, Marchese V, Rock K, Henshaw RM, Addison O. Alterations in Muscle Architecture: A Review of the Relevance to Individuals After Limb Salvage Surgery for Bone Sarcoma. Front Pediatr 2020; 8:292. [PMID: 32612962 PMCID: PMC7308581 DOI: 10.3389/fped.2020.00292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 05/07/2020] [Indexed: 11/13/2022] Open
Abstract
Osteosarcoma and Ewing's sarcoma are the most common primary bone malignancies affecting children and adolescents. Optimal treatment requires a combination of chemotherapy and/or radiation along with surgical removal when feasible. Advances in multiple aspects of surgical management have allowed limb salvage surgery (LSS) to supplant amputation as the most common procedure for these tumors. However, individuals may experience significant impairment after LSS, including deficits in range of motion and strength that limit function and impact participation in work, school, and the community, ultimately affecting quality of life. Muscle force and speed of contraction are important contributors to normal function during activities such as gait, stairs, and other functional tasks. Muscle architecture is the primary contributor to muscle function and adapts to various stimuli, including periods of immobilization-protected weightbearing after surgery. The impacts of LSS on muscle architecture and how adaptations may impact deficits within the rehabilitation period and into long-term survivorship is not well-studied. The purpose of this paper is to [1] provide relevant background on bone sarcomas and LSS, [2] highlight the importance of muscle architecture, its measurement, and alterations as seen in other relevant populations and [3] discuss the clinical relevance of muscle architectural changes and the impact on muscle dysfunction in this population. Understanding the changes that occur in muscle architecture and its impact on long-term impairments in bone sarcoma survivors is important in developing new rehabilitation treatments that optimize functional outcomes.
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Affiliation(s)
- Christa M Nelson
- Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Victoria Marchese
- Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Kelly Rock
- Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Robert M Henshaw
- Department of Orthopedic Oncology, MedStar Georgetown Orthopedic Institute, Washington, DC, United States.,Department of Orthopedic Oncology, Children's National Medical Center, Washington, DC, United States
| | - Odessa Addison
- Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD, United States.,Baltimore VA GRECC, Baltimore, MD, United States
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23
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Chemotherapy-induced sarcopenia in newly diagnosed cancer patients: Izmir Oncology Group (IZOG) study. Support Care Cancer 2019; 28:2899-2910. [DOI: 10.1007/s00520-019-05165-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 10/31/2019] [Indexed: 12/20/2022]
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The Developmental Pathways of Preschool Children with Acute Lymphoblastic Leukemia: Communicative and Social Sequelae One Year after Treatment. CHILDREN-BASEL 2019; 6:children6080092. [PMID: 31412554 PMCID: PMC6721313 DOI: 10.3390/children6080092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/02/2019] [Accepted: 08/11/2019] [Indexed: 11/20/2022]
Abstract
Early childhood is considered to be a period of rapid development, with the acquisition of abilities predicting future positive school competences. Motor, cognitive, and social difficulties related to cancer therapies heavily impact the development of children with cancer. This study focused on two main aims: To assess the developmental pathways of preschool children with acute lymphoblastic leukemia one year post-treatment and to compare these abilities both with those of a control group of healthy peers and with Italian norms. Forty-four children and their families, recruited through the Hematology-Oncologic Clinic of the Department of Child and Woman Health (University of Padua), agreed to participate in this study. The children’s mean age was 4.52 years (SD = 0.94, range = 2.5–6 years), equally distributed by gender, all diagnosed with acute lymphoblastic leukemia. Matched healthy peers were recruited through pediatricians’ ambulatories. Each family was interviewed adopting the Vineland adaptive behavior scales. Paired sample Wilcoxon tests revealed that children were reported to have significantly more developmental difficulties than their healthy peers. When compared with Italian norms, they scored particularly low in verbal competence, social, and coping skills. No significant association was found between treatment variables and developmental abilities. These findings suggest that the creation of specialized interventions, both for parents and children, may fill the possible delays in children’s development probably due to stress, lack of adequate stimulation, or difficult adaptation.
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25
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Nadeau G, Ouimet-Grennan E, Aaron M, Drouin S, Bertout L, Shalmiev A, Beaulieu P, St-Onge P, Veilleux LN, Rauch F, Petrykey K, Laverdière C, Sinnett D, Alos N, Krajinovic M. Identification of genetic variants associated with skeletal muscle function deficit in childhood acute lymphoblastic leukemia survivors. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2019; 12:33-45. [PMID: 31114288 PMCID: PMC6489684 DOI: 10.2147/pgpm.s192924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/21/2019] [Indexed: 12/12/2022]
Abstract
Background: Although 80% of childhood acute lymphoblastic leukemia (ALL) cases are cured with current treatment protocols, exposure to chemotherapeutics or radiation therapy during a vulnerable period of child development has been associated with a high frequency of late adverse effects (LAE). Previous observations suggest important skeletal muscle size, density and function deficits in ALL survivors. Purpose: Given that only a fraction of all patients will suffer from this particular complication, we investigated whether it could be predicted by genetic markers. Patients and methods: We analysed associations between skeletal muscle force (Fmax) and power (Pmax) and germline genetic variants from 1039 genes derived through whole-exome sequencing. Top-ranking association signals retained after correction for multiple testing were confirmed through genotyping, and further analysed through stratified analyses and multivariate models. Results: Our results show that skeletal muscle function deficit is associated with two common single nucleotide polymorphisms (SNPs) (rs2001616DUOX2, P=0.0002 (Pmax) and rs41270041ADAMTS4, P=0.02 (Fmax)) and two rare ones located in the ALOX15 gene (P=0.001 (Pmax)). These associations were further modulated by sex, body mass index and risk groups, which reflected glucocorticoid dose and radiation therapy (P≤0.02). Conclusion: Occurrence of muscle function deficit in childhood ALL is thus strongly modulated by variations in the DUOX2, ADAMTS4 and ALOX15 genes, which could lead to personalized prevention strategies in childhood ALL survivors.
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Affiliation(s)
- Geneviève Nadeau
- Department of Medicine, University of Montreal, Montreal, QC, Canada
| | | | - Michelle Aaron
- Department of Medicine, University of Montreal, Montreal, QC, Canada
| | - Simon Drouin
- Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada
| | - Laurence Bertout
- Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada
| | - Albert Shalmiev
- Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada
| | - Patrick Beaulieu
- Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada
| | - Pascal St-Onge
- Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada
| | | | - Frank Rauch
- Division of paediatrics, Montreal Shriners Hospital for Children, Montreal, QC, Canada
| | - Kateryna Petrykey
- Department of Medicine, University of Montreal, Montreal, QC, Canada.,Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada
| | - Caroline Laverdière
- Department of Medicine, University of Montreal, Montreal, QC, Canada.,Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada.,Division of Hemato-Oncology, Sainte-Justine University Hospital Centre, Montreal, QC, Canada
| | - Daniel Sinnett
- Department of Medicine, University of Montreal, Montreal, QC, Canada.,Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada.,Division of Hemato-Oncology, Sainte-Justine University Hospital Centre, Montreal, QC, Canada
| | - Nathalie Alos
- Department of Medicine, University of Montreal, Montreal, QC, Canada.,Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada.,Division of Endocrinology, Sainte-Justine University Hospital Centre, Montreal, QC, Canada
| | - Maja Krajinovic
- Department of Medicine, University of Montreal, Montreal, QC, Canada.,Sainte-Justine University Hospital Research Centre, Montreal, QC, Canada.,Division of Hemato-Oncology, Sainte-Justine University Hospital Centre, Montreal, QC, Canada
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26
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Møller AB, Lønbro S, Farup J, Voss TS, Rittig N, Wang J, Højris I, Mikkelsen UR, Jessen N. Molecular and cellular adaptations to exercise training in skeletal muscle from cancer patients treated with chemotherapy. J Cancer Res Clin Oncol 2019; 145:1449-1460. [PMID: 30968255 DOI: 10.1007/s00432-019-02911-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 03/28/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND A growing body of evidence suggests that exercise training has beneficial effects in cancer patients. The aim of the present study was to investigate the molecular basis underlying these beneficial effects in skeletal muscle from cancer patients. METHODS We investigated expression of selected proteins involved in cellular processes known to orchestrate adaptation to exercise training by western blot. Skeletal muscle biopsies were sampled from ten cancer patients before and after 4-7 weeks of ongoing chemotherapy, and subsequently after 10 weeks of continued chemotherapy in combination with exercise training. Biopsies from ten healthy matched subjects served as reference. RESULTS The expression of the insulin-regulated glucose transporter, GLUT4, increased during chemotherapy and continued to increase during exercise training. A similar trend was observed for ACC, a key enzyme in the biosynthesis and oxidation of fatty acids, but we did not observe any changes in other regulators of substrate metabolism (AMPK and PDH) or mitochondrial proteins (Cyt-C, COX-IV, SDHA, and VDAC). Markers of proteasomal proteolysis (MURF1 and ATROGIN-1) decreased during chemotherapy, but did not change further during chemotherapy combined with exercise training. A similar pattern was observed for autophagy-related proteins such as ATG5, p62, and pULK1 Ser757, but not ULK1 and LC3BII/LC3BI. Phosphorylation of FOXO3a at Ser318/321 did not change during chemotherapy, but decreased during exercise training. This could suggest that FOXO3a-mediated transcriptional regulation of MURF1 and ATROGIN-1 serves as a mechanism by which exercise training maintains proteolytic systems in skeletal muscle in cancer patients. Phosphorylation of proteins that regulate protein synthesis (mTOR at Ser2448 and 4EBP1 at Thr37/46) increased during chemotherapy and leveled off during exercise training. Finally, chemotherapy tended to increase the number of satellite cells in type 1 fibers, without any further change during chemotherapy and exercise training. Conversely, the number of satellite cells in type 2 fibers did not change during chemotherapy, but increased during chemotherapy combined with exercise training. CONCLUSIONS Molecular signaling cascades involved in exercise training are disturbed during cancer and chemotherapy, and exercise training may prevent further disruption of these pathways. TRIAL REGISTRATION The study was approved by the local Scientific Ethics Committee of the Central Denmark Region (Project ID: M-2014-15-14; date of approval: 01/27/2014) and the Danish Data Protection Agency (case number 2007-58-0010; date of approval: 01/28/2015). The trial was registered at http//www.clinicaltrials.gov (registration number: NCT02192216; date of registration 07/17-2014).
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Affiliation(s)
- Andreas Buch Møller
- Research Laboratory for Biochemical Pathology, Department of Clinical Medicine, HEALTH, Aarhus University Hospital, Palle Juul-Jensen Blvd., 8200, Aarhus N, Denmark.,Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Simon Lønbro
- Section of Sports Science, Department of Public Health, HEALTH, Aarhus University, Aarhus, Denmark.,Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Jean Farup
- Research Laboratory for Biochemical Pathology, Department of Clinical Medicine, HEALTH, Aarhus University Hospital, Palle Juul-Jensen Blvd., 8200, Aarhus N, Denmark
| | - Thomas Schmidt Voss
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.,Medical Research Laboratory, Department of Clinical Medicine, HEALTH, Aarhus University, Aarhus, Denmark
| | - Nikolaj Rittig
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.,Medical Research Laboratory, Department of Clinical Medicine, HEALTH, Aarhus University, Aarhus, Denmark
| | - Jakob Wang
- Section of Sports Science, Department of Public Health, HEALTH, Aarhus University, Aarhus, Denmark
| | - Inger Højris
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Ulla Ramer Mikkelsen
- Section of Sports Science, Department of Public Health, HEALTH, Aarhus University, Aarhus, Denmark.,Department of Orthopedic Surgery, Bispebjerg Hospital and Center for Healthy Aging, Institute of Sports Medicine, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
| | - Niels Jessen
- Research Laboratory for Biochemical Pathology, Department of Clinical Medicine, HEALTH, Aarhus University Hospital, Palle Juul-Jensen Blvd., 8200, Aarhus N, Denmark. .,Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark. .,Department of Clinical Pharmacology, Aarhus University Hospital, Aarhus, Denmark.
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27
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Archer‐Lahlou E, Lan C, Jagoe RT. Physiological culture conditions alter myotube morphology and responses to atrophy treatments: implications for in vitro research on muscle wasting. Physiol Rep 2018; 6:e13726. [PMID: 29932505 PMCID: PMC6014447 DOI: 10.14814/phy2.13726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/09/2018] [Indexed: 01/05/2023] Open
Abstract
Standard in vitro myotube culture conditions are nonphysiological and there is increasing evidence that this may distort adaptations to both catabolic and anabolic stimuli and hamper preclinical research into mechanisms and treatments for muscle atrophy in cancer and other chronic diseases. We tested a new model of myotube culture which mimics more accurately the basal conditions for muscle tissue in patients with chronic disease, such as cancer. Myotubes derived from C2C12 myoblasts, cultured under the modified conditions were thinner, more numerous, with more uniform morphology and an increased proportion of mature myotubes. Furthermore, modified conditions led to increased expression of mir-210-3p, genes related to slow-twitch, oxidative phenotype and resistance to commonly used experimental atrophy-inducing treatments. However, treatment with a combination of drugs used in anti-cancer treatment (doxorubicin and dexamethasone) under the modified culture conditions did lead to myotube atrophy which was only partially prevented by co-administration of curcumin. The results underline the importance and potential advantages of using physiological conditions for in vivo experiments investigating mechanisms of muscle atrophy and especially for preclinical screening of therapies for cancer-related muscle wasting.
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Affiliation(s)
- Elodie Archer‐Lahlou
- Lady Davis Institute for Medical ResearchSegal Cancer CentreJewish General HospitalMcGill UniversityMontrealQuebecCanada
| | - Cathy Lan
- Lady Davis Institute for Medical ResearchSegal Cancer CentreJewish General HospitalMcGill UniversityMontrealQuebecCanada
| | - R. Thomas Jagoe
- Lady Davis Institute for Medical ResearchSegal Cancer CentreJewish General HospitalMcGill UniversityMontrealQuebecCanada
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28
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Mijwel S, Cardinale DA, Norrbom J, Chapman M, Ivarsson N, Wengström Y, Sundberg CJ, Rundqvist H. Exercise training during chemotherapy preserves skeletal muscle fiber area, capillarization, and mitochondrial content in patients with breast cancer. FASEB J 2018; 32:5495-5505. [PMID: 29750574 DOI: 10.1096/fj.201700968r] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Exercise has been suggested to ameliorate the detrimental effects of chemotherapy on skeletal muscle. The aim of this study was to compare the effects of different exercise regimens with usual care on skeletal muscle morphology and mitochondrial markers in patients being treated with chemotherapy for breast cancer. Specifically, we compared moderate-intensity aerobic training combined with high-intensity interval training (AT-HIIT) and resistance training combined with high-intensity interval training (RT-HIIT) with usual care (UC). Resting skeletal muscle biopsies were obtained pre- and postintervention from 23 randomly selected women from the OptiTrain breast cancer trial who underwent RT-HIIT, AT-HIIT, or UC for 16 wk. Over the intervention, citrate synthase activity, muscle fiber cross-sectional area, capillaries per fiber, and myosin heavy chain isoform type I were reduced in UC, whereas RT-HIIT and AT-HIIT were able to counteract these declines. AT-HIIT promoted up-regulation of the electron transport chain protein levels vs. UC. RT-HIIT favored satellite cell count vs. UC and AT-HIIT. There was a significant association between change in citrate synthase activity and self-reported fatigue. AT-HIIT and RT-HIIT maintained or improved markers of skeletal muscle function compared with the declines found in the UC group, indicating a sustained trainability in addition to the preservation of skeletal muscle structural and metabolic characteristics during chemotherapy. These findings highlight the importance of supervised exercise programs for patients with breast cancer during chemotherapy.-Mijwel, S., Cardinale, D. A., Norrbom, J., Chapman, M., Ivarsson, N., Wengström, Y., Sundberg, C. J., Rundqvist, H. Exercise training during chemotherapy preserves skeletal muscle fiber area, capillarization, and mitochondrial content in patients with breast cancer.
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Affiliation(s)
- Sara Mijwel
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.,Department of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Stockholm, Sweden
| | - Daniele A Cardinale
- Åstrand Laboratory, The Swedish School of Sport and Health Sciences, Stockholm, Sweden
| | - Jessica Norrbom
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Mark Chapman
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Niklas Ivarsson
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Yvonne Wengström
- Department of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Stockholm, Sweden.,Cancer Theme, Karolinska University Hospital, Stockholm, Sweden
| | - Carl Johan Sundberg
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.,Department of Learning, Informatics, Management, and Ethics, Karolinska Institutet, Stockholm, Sweden; and
| | - Helene Rundqvist
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
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29
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Aerobic exercise and cardiopulmonary fitness in childhood cancer survivors treated with a cardiotoxic agent: a meta-analysis. Support Care Cancer 2018; 26:2113-2123. [PMID: 29671063 DOI: 10.1007/s00520-018-4208-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 04/09/2018] [Indexed: 12/21/2022]
Abstract
PURPOSE The main purpose of this review was to synthesize evidence from existing childhood cancer survivor studies that report the effect of aerobic exercise on cardiopulmonary fitness (a marker of cardiovascular health), in survivors that were currently receiving or had been treated with a cardiotoxic agent. METHODS Studies were identified for this review by searching both electronic databases of peer-reviewed articles, as well as various sources of gray literature. Risk of bias was qualitatively assessed in these studies using the domains outlined in the Cochrane Handbook for Systematic Reviews of Interventions. Data was analyzed quantitatively using random-effects meta-analyses and subgroup analyses in RevMan Software. RESULTS Meta-analysis of pooled evidence from the nine included studies suggests that aerobic exercise has a statistically and clinically significant positive effect on cardiopulmonary fitness (effect estimate = 6.92%, p value = 0.02). Findings from subgroup analyses of clinical characteristics and exercise parameters were not significant. CONCLUSIONS The findings from this review, although not directly demonstrating a cardioprotective effect, are a preliminary step towards establishing the putative cardioprotective effect of aerobic exercise against the direct cardiotoxic impact of cancer treatments. The significant positive effect estimate in favor of aerobic exercise is a small but important advancement towards the standardization of aerobic exercise in childhood cancer survivors. Further studies are necessary.
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30
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Chemotherapeutic Drugs and Mitochondrial Dysfunction: Focus on Doxorubicin, Trastuzumab, and Sunitinib. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:7582730. [PMID: 29743983 PMCID: PMC5878876 DOI: 10.1155/2018/7582730] [Citation(s) in RCA: 199] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/23/2018] [Accepted: 02/06/2018] [Indexed: 02/07/2023]
Abstract
Many cancer therapies produce toxic side effects whose molecular mechanisms await full elucidation. The most feared and studied side effect of chemotherapeutic drugs is cardiotoxicity. Also, skeletal muscle physiology impairment has been recorded after many chemotherapeutical treatments. However, only doxorubicin has been extensively studied for its side effects on skeletal muscle. Chemotherapeutic-induced adverse side effects are, in many cases, mediated by mitochondrial damage. In particular, trastuzumab and sunitinib toxicity is mainly associated with mitochondria impairment and is mostly reversible. Vice versa, doxorubicin-induced toxicity not only includes mitochondria damage but can also lead to a more robust and extensive cell injury which is often irreversible and lethal. Drugs interfering with mitochondrial functionality determine the depletion of ATP reservoirs and lead to subsequent reversible contractile dysfunction. Mitochondrial damage includes the impairment of the respiratory chain and the loss of mitochondrial membrane potential with subsequent disruption of cellular energetic. In a context of increased stress, AMPK has a key role in maintaining energy homeostasis, and inhibition of the AMPK pathway is one of the proposed mechanisms possibly mediating mitochondrial toxicity due to chemotherapeutics. Therapies targeting and protecting cell metabolism and energy management might be useful tools in protecting muscular tissues against the toxicity induced by chemotherapeutic drugs.
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31
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Chemotherapeutic agents induce mitochondrial superoxide production and toxicity but do not alter respiration in skeletal muscle in vitro. Mitochondrion 2017; 42:33-49. [PMID: 29079447 DOI: 10.1016/j.mito.2017.10.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 09/21/2017] [Accepted: 10/23/2017] [Indexed: 12/31/2022]
Abstract
Chemotherapeutic agents (CAs) can independently promote skeletal muscle dysfunction, fatigue and wasting with mitochondrial toxicity implicated as a possible mechanism. Thus, we aimed to characterise the effects of various CAs on mitochondrial function, viability and oxidant production in C2C12 myoblasts and myotubes. All CAs significantly reduced the viable mitochondrial pool but did not affect mitochondrial functional parameters. Doxorubicin and oxaliplatin increased oxidant production in myotubes while all CAs, except for irinotecan, increased oxidant production in myoblasts and reduced myotube diameter. Our data demonstrate CAs mito-toxic effects, highlighting the potential for mitochondria-protective therapeutics to address chemotherapy-induced skeletal muscle damage.
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32
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Motor skill delays in pre-school children with leukemia one year after treatment: Hematopoietic stem cell transplantation therapy as an important risk factor. PLoS One 2017; 12:e0186787. [PMID: 29065156 PMCID: PMC5655450 DOI: 10.1371/journal.pone.0186787] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/06/2017] [Indexed: 11/19/2022] Open
Abstract
CNS-directed therapies for the treatment of leukemia can adversely affect the acquisition of new skills, such as reading/writing and math. Two years after the end of treatments, children show gross and fine motor skill delays that may persist even when patients are considered healed. The goal of the present study was to assess motor skills difficulties in pre-school children with leukemia one year after treatment. Particular attention has been paid to those patients who had undergone Hematopoietic Stem Cell Transplantation (HSCT) and to the relationship between motor delays and age bands. Participants were 60 children (median age of 5; inter quartile range: 3.07–5.76), including 31 females and 29 males, 91.7% of them were affected by acute lymphoblastic leukemia (ALL), and 8.3% by acute myeloid leukemia (AML). Five children had undergone HCST. Parents were interviewed by Vineland Adaptive Behavior Scales (VABS) on children’s motor skills and filled in the Italian Temperament Questionnaire (QUIT). VABS’s total scores were converted into equivalent mental age scores (EMA). A score difference of at least three months between current age and equivalent mental age was considered a developmental delay. Non-parametric analyses were run to understand if HSCT treatment and a specific age band influence children’s motor skills. Significant delays were found in global motor skills (56.7%) as well as in fine and gross motor domains. Mann Whitney U tests showed that children with HSCT were reported to have lower gross motor mean ranks (U = 62; p = 0.004; Mean rank = 15.40) than peers without HSCT (Mean rank = 31.87) and lower mean rank values on motor temperament scale (U = 9; p = 0.003; HSCT Mean rank = 4.75 versus no HSCT Mean rank = 27.81). Kruskal Wallis’ tests identified the high risk treatment showing that HSCT experience negatively impacted the motor skills and temperamental motor activity of pre-school children one year after the diagnosis of leukemia.
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33
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Sorensen JC, Petersen AC, Timpani CA, Campelj DG, Cook J, Trewin AJ, Stojanovska V, Stewart M, Hayes A, Rybalka E. BGP-15 Protects against Oxaliplatin-Induced Skeletal Myopathy and Mitochondrial Reactive Oxygen Species Production in Mice. Front Pharmacol 2017; 8:137. [PMID: 28443020 PMCID: PMC5385327 DOI: 10.3389/fphar.2017.00137] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/06/2017] [Indexed: 12/22/2022] Open
Abstract
Chemotherapy is a leading intervention against cancer. Albeit highly effective, chemotherapy has a multitude of deleterious side-effects including skeletal muscle wasting and fatigue, which considerably reduces patient quality of life and survivability. As such, a defense against chemotherapy-induced skeletal muscle dysfunction is required. Here we investigate the effects of oxaliplatin (OXA) treatment in mice on the skeletal muscle and mitochondria, and the capacity for the Poly ADP-ribose polymerase (PARP) inhibitor, BGP-15, to ameliorate any pathological side-effects induced by OXA. To do so, we investigated the effects of 2 weeks of OXA (3 mg/kg) treatment with and without BGP-15 (15 mg/kg). OXA induced a 15% (p < 0.05) reduction in lean tissue mass without significant changes in food consumption or energy expenditure. OXA treatment also altered the muscle architecture, increasing collagen deposition, neutral lipid and Ca2+ accumulation; all of which were ameliorated with BGP-15 adjunct therapy. Here, we are the first to show that OXA penetrates the mitochondria, and, as a possible consequence of this, increases mtROS production. These data correspond with reduced diameter of isolated FDB fibers and shift in the fiber size distribution frequency of TA to the left. There was a tendency for reduction in intramuscular protein content, albeit apparently not via Murf1 (atrophy)- or p62 (autophagy)- dependent pathways. BGP-15 adjunct therapy protected against increased ROS production and improved mitochondrial viability 4-fold and preserved fiber diameter and number. Our study highlights BGP-15 as a potential adjunct therapy to address chemotherapy-induced skeletal muscle and mitochondrial pathology.
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Affiliation(s)
- James C Sorensen
- Centre for Chronic Disease, College of Health & Biomedicine, Victoria UniversityMelbourne, VIC, Australia.,Australian Institute for Musculoskeletal ScienceMelbourne, VIC, Australia
| | - Aaron C Petersen
- Institute of Sport, Exercise & Active Living, Victoria UniversityMelbourne, VIC, Australia
| | - Cara A Timpani
- Centre for Chronic Disease, College of Health & Biomedicine, Victoria UniversityMelbourne, VIC, Australia.,Australian Institute for Musculoskeletal ScienceMelbourne, VIC, Australia
| | - Dean G Campelj
- Centre for Chronic Disease, College of Health & Biomedicine, Victoria UniversityMelbourne, VIC, Australia.,Australian Institute for Musculoskeletal ScienceMelbourne, VIC, Australia
| | - Jordan Cook
- Centre for Chronic Disease, College of Health & Biomedicine, Victoria UniversityMelbourne, VIC, Australia
| | - Adam J Trewin
- Institute of Sport, Exercise & Active Living, Victoria UniversityMelbourne, VIC, Australia
| | - Vanesa Stojanovska
- Centre for Chronic Disease, College of Health & Biomedicine, Victoria UniversityMelbourne, VIC, Australia
| | - Mathew Stewart
- Institute of Sustainability and Innovation, Victoria UniversityMelbourne, VIC, Australia
| | - Alan Hayes
- Centre for Chronic Disease, College of Health & Biomedicine, Victoria UniversityMelbourne, VIC, Australia.,Australian Institute for Musculoskeletal ScienceMelbourne, VIC, Australia.,Institute of Sport, Exercise & Active Living, Victoria UniversityMelbourne, VIC, Australia
| | - Emma Rybalka
- Centre for Chronic Disease, College of Health & Biomedicine, Victoria UniversityMelbourne, VIC, Australia.,Australian Institute for Musculoskeletal ScienceMelbourne, VIC, Australia.,Institute of Sport, Exercise & Active Living, Victoria UniversityMelbourne, VIC, Australia
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Söntgerath R, Eckert K. Impairments of Lower Extremity Muscle Strength and Balance in Childhood Cancer Patients and Survivors: A Systematic Review. Pediatr Hematol Oncol 2016; 32:585-612. [PMID: 26558954 DOI: 10.3109/08880018.2015.1079756] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This review aims to summarize the evidence for impairments of muscle strength and balance during and after treatment for childhood cancer. Thirty-two articles, identified in scientific databases by means of a structured search for investigations of muscle strength and balance in pediatric cancer patients and survivors, are evaluated. A summary of results is given with respect to matching reporting items to provide a qualitative analysis of the evidence. The majority of the studies reached a level 3 rating according to Oxford Centre for Evidence-Based Medicine (OCEBM) 2011 levels of evidence. Muscle strength and balance seem to be impaired in varying degrees depending on the diagnosis, treatment received, and time elapsed between treatment and evaluation. Drawing specific conclusions from the identified studies is difficult because of heterogeneous study samples and methods of research. Individual targeted exercise therapy programs during treatment and follow-up of childhood cancer could help to prevent and further diminish impairments of muscle strength and balance function among childhood cancer patients and survivors.
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Affiliation(s)
- Regine Söntgerath
- a Institute of Exercise and Public Health, Faculty of Sport Science , University of Leipzig , Leipzig , Germany.,b Department of Pediatric Oncology, Hematology and Hemostaseology , University Hospital Leipzig , Leipzig , Germany
| | - Katharina Eckert
- a Institute of Exercise and Public Health, Faculty of Sport Science , University of Leipzig , Leipzig , Germany
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35
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Sorensen JC, Cheregi BD, Timpani CA, Nurgali K, Hayes A, Rybalka E. Mitochondria: Inadvertent targets in chemotherapy-induced skeletal muscle toxicity and wasting? Cancer Chemother Pharmacol 2016; 78:673-83. [PMID: 27167634 DOI: 10.1007/s00280-016-3045-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 04/20/2016] [Indexed: 12/19/2022]
Abstract
Chemotherapy has been associated with increased mitochondrial reactive oxygen species production, mitochondrial dysfunction and skeletal muscle atrophy leading to severe patient clinical complications including skeletal muscle fatigue, insulin resistance and wasting. The exact mechanisms behind this skeletal muscle toxicity are largely unknown, and as such co-therapies to attenuate chemotherapy-induced side effects are lacking. Here, we review the current literature describing the clinical manifestations and molecular origins of chemotherapy-induced myopathy with a focus on the mitochondria as the target organelle via which chemotherapeutic agents establish toxicity. We explore the likely mechanisms through which myopathy is induced, using the anthracycline doxorubicin, and the platinum-based alkylating agent oxaliplatin, as examples. Finally, we recommend directions for future research and outline the potential significance of these proposed directions.
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Affiliation(s)
- James C Sorensen
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Melbourne, 8001, Australia.,Australian Institute of Musculoskeletal Science, Western Health, Melbourne, 3021, Australia
| | - Beatrice D Cheregi
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Melbourne, 8001, Australia
| | - Cara A Timpani
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Melbourne, 8001, Australia.,Australian Institute of Musculoskeletal Science, Western Health, Melbourne, 3021, Australia
| | - Kulmira Nurgali
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Melbourne, 8001, Australia
| | - Alan Hayes
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Melbourne, 8001, Australia.,Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, 8001, Australia.,Australian Institute of Musculoskeletal Science, Western Health, Melbourne, 3021, Australia
| | - Emma Rybalka
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Melbourne, 8001, Australia. .,Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, 8001, Australia. .,Australian Institute of Musculoskeletal Science, Western Health, Melbourne, 3021, Australia.
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A Review of Cardiorespiratory Fitness in Adolescent and Young Adult Survivors of Childhood Cancer: Factors that Affect its Decline and Opportunities for Intervention. J Adolesc Young Adult Oncol 2016; 5:8-15. [DOI: 10.1089/jayao.2015.0031] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Skeletal muscle loss after total gastrectomy, exacerbated by adjuvant chemotherapy. Gastric Cancer 2015; 18:382-9. [PMID: 24715254 DOI: 10.1007/s10120-014-0365-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 02/28/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND Skeletal muscle loss is associated with physical disability, nosocomial infections, postoperative complications, and decreased survival. Preventing the loss of skeletal muscle mass after gastrectomy may lead to improved outcomes. The aims of this study were to assess changes in skeletal muscle mass after total gastrectomy (TG) and to clarify the clinical factors affecting significant loss of skeletal muscle after TG. PATIENTS AND METHODS One hundred and two patients undergoing TG for primary gastric cancer underwent abdominal computed tomography before and 1 year after TG to precisely quantify postoperative changes in skeletal muscle and adipose tissue. Univariate and multivariate logistic regression analyses identified clinical factors contributing to significant loss of skeletal muscle after TG. RESULTS At 1 year after TG, the mass of both skeletal muscle and adipose tissue was reduced by 6.20 ± 6.80 and 65.8 ± 36.1% of the preoperative values, respectively, and 26 patients (25.5%) showed a significant loss of skeletal muscle of more than 10%. Adjuvant chemotherapy with S-1 for ≥6 months (hazard ratio 26.61, 95% confidence interval, 3.487-203.1) was identified as the single independent risk factor for a significant loss of skeletal muscle. CONCLUSIONS Skeletal muscle loss was exacerbated by extended adjuvant chemotherapy after TG. Further research should identify appropriate nutritional interventions for maintaining skeletal muscle mass and leading to improved outcomes.
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Gouspillou G, Scheede-Bergdahl C, Spendiff S, Vuda M, Meehan B, Mlynarski H, Archer-Lahlou E, Sgarioto N, Purves-Smith FM, Konokhova Y, Rak J, Chevalier S, Taivassalo T, Hepple RT, Jagoe RT. Anthracycline-containing chemotherapy causes long-term impairment of mitochondrial respiration and increased reactive oxygen species release in skeletal muscle. Sci Rep 2015; 5:8717. [PMID: 25732599 PMCID: PMC4346812 DOI: 10.1038/srep08717] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/26/2015] [Indexed: 01/23/2023] Open
Abstract
Anticancer treatments for childhood acute lymphoblastic leukaemia (ALL) are highly effective but are now implicated in causing impaired muscle function in long-term survivors. However, no comprehensive assessment of skeletal muscle mitochondrial functions in long-term survivors has been performed and the presence of persistent chemotherapy-induced skeletal muscle mitochondrial dysfunction remains a strong possibility. Non-tumour-bearing mice were treated with two drugs that have been used frequently in ALL treatment (doxorubicin and dexamethasone) for up to 4 cycles at 3-week intervals and euthanized 3 months after the 4th cycle. Treated animals had impaired growth and lower muscle mass as well as reduced mitochondrial respiration and increased reactive oxygen species production per unit oxygen consumption. Mitochondrial DNA content and protein levels of key mitochondrial membrane proteins and markers of mitochondrial biogenesis were unchanged, but protein levels of Parkin were reduced. This suggests a novel pattern of chemotherapy-induced mitochondrial dysfunction in skeletal muscle that persists because of an acquired defect in mitophagy signaling. The results could explain the observed functional impairments in adult survivors of childhood ALL and may also be relevant to long-term survivors of other cancers treated with similar regimes.
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Affiliation(s)
- Gilles Gouspillou
- 1] McGill University Health Centre, Montreal, Quebec, Canada [2] Département de Kinanthropologie, Université du Québec à Montréal, Montreal, Quebec, Canada
| | - Celena Scheede-Bergdahl
- 1] Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada [2] Department of Kinesiology, McGill University, Montreal, Quebec, Canada
| | - Sally Spendiff
- 1] McGill University Health Centre, Montreal, Quebec, Canada [2] Department of Kinesiology, McGill University, Montreal, Quebec, Canada
| | | | - Brian Meehan
- 1] Department of Oncology, McGill University, Montreal, Quebec, Canada [2] Montreal Children's Hospital Research Institute, Montreal, Quebec, Canada
| | - Heather Mlynarski
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | - Elodie Archer-Lahlou
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | | | - Fennigje M Purves-Smith
- 1] McGill University Health Centre, Montreal, Quebec, Canada [2] Department of Kinesiology, McGill University, Montreal, Quebec, Canada
| | - Yana Konokhova
- 1] McGill University Health Centre, Montreal, Quebec, Canada [2] Department of Kinesiology, McGill University, Montreal, Quebec, Canada
| | - Janusz Rak
- 1] Department of Oncology, McGill University, Montreal, Quebec, Canada [2] Montreal Children's Hospital Research Institute, Montreal, Quebec, Canada
| | | | - Tanja Taivassalo
- Department of Kinesiology, McGill University, Montreal, Quebec, Canada
| | - Russell T Hepple
- 1] McGill University Health Centre, Montreal, Quebec, Canada [2] Department of Kinesiology, McGill University, Montreal, Quebec, Canada
| | - R Thomas Jagoe
- 1] Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada [2] Department of Oncology, McGill University, Montreal, Quebec, Canada
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