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Vaden SL, Kendall AR, Foster JD, New HL, Eagleson JS, May JL, Traas AM, Wilson MJ, McIntyre BH, Hinderer CJ, Olenick LK, Wilson JM. Adeno-associated virus-vectored erythropoietin gene therapy for anemia in cats with chronic kidney disease. J Vet Intern Med 2023; 37:2200-2210. [PMID: 37847024 PMCID: PMC10658539 DOI: 10.1111/jvim.16900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 09/27/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND A treatment of chronic kidney disease (CKD)-associated anemia in cats is needed. SB-001 is an adeno-associated virus-vectored (AAV)-based gene therapeutic agent that is administered intramuscularly, causing the expression of feline erythropoietin. HYPOTHESIS/OBJECTIVE We hypothesized that SB-001 injection would lead to a sustained increase in PCV in cats with CKD-associated anemia. ANIMALS Twenty-three cats with International Renal Interest Society (IRIS) Stage 2 to 4 CKD-associated anemia were enrolled at 4 veterinary clinics. METHODS In a prospective clinical trial, cats were treated with 1 of 3 regimens of SB-001 (Lo 1.2 × 109 genome copies [GCs] on Day 0; Lo ± Hi [supplemental 2nd dose of 3.65 × 109 GC on Day 42]; Hi 3.65 × 109 GC IM on Day 0) and followed for 70 days. RESULTS A response to SB-001 at any time between Day 28 and Day 70 was seen in 86% (95% confidence interval 65, 97%) of all cats. There was a significant (P < .003) increase in PCV from Day 0 to Day 28 (mean increase 6 ± 6 percentage points [pp]; n = 21), Day 42 (8 ± 9 pp; n = 21), Day 56 (10 ± 11 pp; n = 17), and Day 70 (13 ± 14 pp, n = 14). Twelve cats were hypertensive at baseline, 4 of which developed encephalopathy during the study. An additional 6 cats became hypertensive during the study. CONCLUSIONS AND CLINICAL IMPORTANCE Results of this study suggest that SB-001 therapy represents a suitable single injection treatment that can address nonregenerative anemia in cats with CKD. It was generally well tolerated; however, hypertension and encephalopathy developed in some cats as previously described in association with erythropoiesis-stimulating agent therapy.
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Affiliation(s)
- Shelly L. Vaden
- Department of Clinical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth Carolina27607USA
| | - Allison R. Kendall
- Department of Clinical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth Carolina27607USA
| | | | - Heidi L. New
- VCA Sacramento Veterinary Referral CenterSacramentoCalifornia95287USA
| | | | | | | | | | | | - Christian J. Hinderer
- Gene Therapy Program, Department of Medicine, Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvania19104USA
| | | | - James M. Wilson
- Gene Therapy Program, Department of Medicine, Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvania19104USA
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2
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Khalifa AA, Ali MA, Elsokkary NH, Elblehi SS, El-Mas MM. Mitochondrial modulation of amplified preconditioning influences of remote ischemia plus erythropoietin against skeletal muscle ischemia/reperfusion injury in rats. Life Sci 2023; 329:121979. [PMID: 37516431 DOI: 10.1016/j.lfs.2023.121979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/17/2023] [Accepted: 07/23/2023] [Indexed: 07/31/2023]
Abstract
AIMS Skeletal muscle ischemia and reperfusion (S-I/R) injury is relieved by interventions like remote ischemic preconditioning (RIPC). Here, we tested the hypothesis that simultaneous exposure to a minimal dose of erythropoietin (EPO) boosts the protection conferred by RIPC against S-I/R injury and concomitant mitochondrial oxidative and apoptotic defects. MAIN METHODS S-I/R injury was induced in rats by 3-h right hindlimb ischemia followed by 3-h of reperfusion, whereas RIPC involved 3 brief consecutive I/R cycles of the contralateral hindlimb. KEY FINDINGS S-I/R injury caused (i) rises in serum lactate dehydrogenase and creatine kinase and falls in serum pyruvate, (ii) structural deformities like sarcoplasm vacuolations, segmental necrosis, and inflammatory cells infiltration, and (iii) decreased amplitude and increased duration of electromyography action potentials. These defects were partially ameliorated by RIPC and dose-dependently by EPO (500 or 5000 IU/kg). Further, greater repairs of S-I/R-evoked damages were seen after prior exposure to the combined RIPC/EPO-500 intervention. The latter also caused more effective (i) preservation of mitochondrial number (confocal microscopy assessed Mitotracker red staining) and function (citrate synthase activity), (ii) suppression of mitochondrial DNA damage and indices of oxidative stress and apoptosis (succinate dehydrogenase, myeloperoxidase, cardiolipin, and cytochrome c), (iii) preventing calcium and nitric oxide metabolites (NOx) accumulation and glycogen consumption, and (iv) upregulating EPO receptors (EPO-R) gene expression. SIGNIFICANCE dual RIPC/EPO conditioning exceptionally mends structural, functional, and neuronal deficits caused by I/R injury and interrelated mitochondrial oxidative and apoptotic damage. Clinically, the utilization of relatively low EPO doses could minimize the hormone-related adverse effects.
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Affiliation(s)
- Asmaa A Khalifa
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt.
| | - Mennatallah A Ali
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt.
| | - Nahed H Elsokkary
- Department of Physiology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Samar S Elblehi
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Behera, Egypt.
| | - Mahmoud M El-Mas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt; Department of Pharmacology and Toxicology, College of Medicine, Kuwait University, Kuwait.
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Evans E, Walhin JP, Hengist A, Betts JA, Dearlove DJ, Gonzalez JT. Ketone monoester ingestion increases postexercise serum erythropoietin concentrations in healthy men. Am J Physiol Endocrinol Metab 2023; 324:E56-E61. [PMID: 36449571 PMCID: PMC9870573 DOI: 10.1152/ajpendo.00264.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/18/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022]
Abstract
Intravenous ketone body infusion can increase erythropoietin (EPO) concentrations, but responses to ketone monoester ingestion postexercise are currently unknown. The purpose of this study was to assess the effect of ketone monoester ingestion on postexercise erythropoietin (EPO) concentrations. Nine healthy men completed two trials in a randomized, crossover design (1-wk washout). During trials, participants performed 1 h of cycling (initially alternating between 50% and 90% of maximal aerobic capacity for 2 min each interval, and then 50% and 80%, and 50% and 70% when the higher intensity was unsustainable). Participants ingested 0.8 g·kg-1 sucrose with 0.4 g·kg-1 protein immediately after exercise, and at 1, 2, and 3 h postexercise. During the control trial (CONTROL), no further nutrition was provided, whereas on the ketone monoester trial (KETONE), participants also ingested 0.29 g·kg-1 of the ketone monoester (R)-3-hydroxybutyl (R)-3-hydroxybutyrate immediately postexercise and at 1 and 2 h postexercise. Blood was sampled immediately postexercise, every 15 min in the first hour and hourly thereafter for 4 h. Serum EPO concentrations increased to a greater extent in KETONE than in CONTROL (time × condition interaction: P = 0.046). Peak serum EPO concentrations were higher with KETONE (means ± SD: 9.0 ± 2.3 IU·L-1) compared with CONTROL (7.5 ± 1.5 IU·L-1, P < 0.01). Serum β-hydroxybutyrate concentrations were also higher, and glucose concentrations lower, with KETONE versus CONTROL (both P < 0.01). In conclusion, ketone monoester ingestion increases postexercise erythropoietin concentrations, revealing a new avenue for orally ingestible ketone monoesters to potentially alter hemoglobin mass.NEW & NOTEWORTHY To our knowledge, this study was the first to assess the effects of ketone monoester ingestion on erythropoietin concentrations after exercise. We demonstrated that ingestion of a ketone monoester postexercise increased serum erythropoietin concentrations and reduced serum glucose concentrations in healthy men. These data reveal the possibility for ketone monoesters to alter hemoglobin mass.
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Affiliation(s)
- Eric Evans
- Centre for Nutrition, Exercise and Metabolism, University of Bath, Bath, United Kingdom
| | - Jean-Philippe Walhin
- Centre for Nutrition, Exercise and Metabolism, University of Bath, Bath, United Kingdom
- Department for Health, University of Bath, Bath, United Kingdom
| | - Aaron Hengist
- Centre for Nutrition, Exercise and Metabolism, University of Bath, Bath, United Kingdom
- Department for Health, University of Bath, Bath, United Kingdom
| | - James A Betts
- Centre for Nutrition, Exercise and Metabolism, University of Bath, Bath, United Kingdom
- Department for Health, University of Bath, Bath, United Kingdom
| | - David J Dearlove
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, University of Oxford, Oxford, United Kingdom
| | - Javier T Gonzalez
- Centre for Nutrition, Exercise and Metabolism, University of Bath, Bath, United Kingdom
- Department for Health, University of Bath, Bath, United Kingdom
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van de Haterd B, Verboven K, Vandenabeele F, Agten A. The Role of Skeletal Muscle Mitochondria in Colorectal Cancer Related Cachexia: Friends or Foes? Int J Mol Sci 2022; 23:14833. [PMID: 36499157 PMCID: PMC9737299 DOI: 10.3390/ijms232314833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 12/05/2022] Open
Abstract
Up to 60% of colorectal cancer (CRC) patients develop cachexia. The presence of CRC related cachexia is associated with more adverse events during systemic therapy, leading to a high mortality rate. The main manifestation in CRC related cachexia is the loss of skeletal muscle mass, resulting from an imbalance between skeletal muscle protein synthesis and protein degradation. In CRC related cachexia, systemic inflammation, oxidative stress, and proteolytic systems lead to mitochondrial dysfunction, resulting in an imbalanced skeletal muscle metabolism. Mitochondria fulfill an important function in muscle maintenance. Thus, preservation of the skeletal muscle mitochondrial homeostasis may contribute to prevent the loss of muscle mass. However, it remains elusive whether mitochondria play a benign or malignant role in the development of cancer cachexia. This review summarizes current (mostly preclinical) evidence about the role of skeletal muscle mitochondria in the development of CRC related cachexia. Future human research is necessary to determine the physiological role of skeletal muscle mitochondria in the development of human CRC related cachexia.
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Affiliation(s)
- Britt van de Haterd
- REVAL—Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Agoralaan, 3590 Diepenbeek, Belgium
| | - Kenneth Verboven
- REVAL—Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Agoralaan, 3590 Diepenbeek, Belgium
- BIOMED—Biomedical Research Center, Hasselt University, Agoralaan, 3590 Diepenbeek, Belgium
| | - Frank Vandenabeele
- REVAL—Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Agoralaan, 3590 Diepenbeek, Belgium
| | - Anouk Agten
- REVAL—Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Agoralaan, 3590 Diepenbeek, Belgium
- U-RISE—Uhasselt Research Group on Innovative and Society-Engaged Education, School for Educational Studies, Hasselt University, Agoralaan, 3590 Diepenbeek, Belgium
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5
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Günter CI, Ilg FP, Hapfelmeier A, Egert-Schwender S, Jelkmann W, Giri S, Bader A, Machens HG. Relation Between Gender and Concomitant Medications With Erythropoietin-Treatment on Wound Healing in Burn Patients. Post Hoc Subgroup-Analysis of the Randomized, Placebo-Controlled Clinical Trial “EPO in Burns”. Front Pharmacol 2022; 13:812888. [PMID: 35847006 PMCID: PMC9284535 DOI: 10.3389/fphar.2022.812888] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/25/2022] [Indexed: 11/21/2022] Open
Abstract
Burns are leading causes of mortality and morbidity, including prolonged hospitalization, disfigurement, and disability. Erythropoietin (EPO) is a well-known hormone causing erythropoiesis. However, EPO may play a role in healing acute and chronic wounds due to its anti-inflammatory and pro-regenerative effects. Therefore, the large, prospective, placebo-controlled, randomized, double-blind, multi-center clinical trial “EPO in Burns” was initiated to investigate the effects of EPO versus placebo treatment in severely burned patients. The primary endpoint of “EPO in Burns” was defined as the time elapsed until complete re-epithelialization of a defined split skin graft donor site. Additional analyses of post hoc defined subgroups were performed in view of the primary endpoint. The verum (n 45) and control (n 39) groups were compared with regard to the time it took for study wounds (a predefined split skin graft donor site) to reach the three stages of wound healing (re-epithelialization levels). In addition, the effects of gender (females n 18) and concomitant medications insulin (n 36), non-steroidal anti-inflammatory drugs (NSAIDs) (n 41), and vasopressor agents (n 43) were tested. Life tables were used to compare study groups (EPO vs. placebo) within subgroups. The Cox regression model was applied to evaluate interactions between the study drug (EPO) and concomitant medications for each re-epithelialization level. Using our post hoc defined subgroups, we observed a lower chance of wound healing for women compared to men (in terms of hazard ratio: hr100%: 5.984 [95%-CI: (0.805–44.490), p = 0.080]) in our study population, regardless of the study medication. In addition, results indicated an earlier onset of re-epithelialization in the first days of EPO treatment (EPO: 10% vs. Placebo: 3%). Moreover, the interpretation of the hazard ratio suggested EPO might have a positive, synergistic effect on early stages of re-epithelialization when combined with insulin [hr50%: 1.307 (p = 0.568); hr75%: 1,199 (p = 0.715)], as well as a stabilizing effect on critically ill patients [reduced need for vasopressors in the EPO group (EPO: 44% vs. Placebo 59%)]. However, additional high-quality data from clinical trials designed to address these endpoints are required to gain further insight into these effects.
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Affiliation(s)
- Christina Irene Günter
- Clinic for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
- *Correspondence: Christina Irene Günter,
| | - Felicitas Paula Ilg
- Clinic for Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Alexander Hapfelmeier
- Institute of Medical Informatics, Statistics and Epidemiology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Silvia Egert-Schwender
- Müncher Studienzentrum, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | | | - Shibashish Giri
- Institute for Cell Techniques and Applied Stem Cell Biology, University of Leipzig, Leipzig, Germany
| | - Augustinus Bader
- Institute for Cell Techniques and Applied Stem Cell Biology, University of Leipzig, Leipzig, Germany
| | - Hans-Günter Machens
- Clinic for Plastic and Hand Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
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6
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Yoo JI, Ha YC, Cha Y. Nutrition and Exercise Treatment of Sarcopenia in Hip Fracture Patients: Systematic Review. J Bone Metab 2022; 29:63-73. [PMID: 35718923 PMCID: PMC9208903 DOI: 10.11005/jbm.2022.29.2.63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/03/2022] [Indexed: 11/11/2022] Open
Abstract
Background This study aimed to investigate nutritional or rehabilitation intervention protocols for hip fracture patients with sarcopenia and to analyze the effect of these protocols through a systematic review of studies that reported clinical results. Methods Studies were selected based on the following criteria: (1) study design: randomized controlled trials or non-randomized comparative studies; (2) study population: patients with hip fracture; (3) intervention: nutritional or rehabilitation; and (4) reporting the clinical outcomes and definition of sarcopenia. Results Of the 247 references initially identified from the selected databases, 5 randomized controlled studies and 2 comparative studies were selected for further investigation. The total number of patients was 497. We found 2 specific rehabilitation interventions, one medication intervention using erythropoietin, and 4 nutritional interventions using amino-acid or protein. Among the studies included in this systematic review, 2 studies did not find a clear statistical difference in assessment tools compared to controls after intervention. On the other hand, the rest of the studies positively interpreted the results for intervention. The most frequently used assessment tool for intervention was handgrip strength. Conclusions Although mainstream methods of intervention for sarcopenia include nutritional, exercise, and drug interventions, the validity of these interventions in elderly hip fractures has not been clearly proven. In addition, as most studies only reported short-term results, there is no consensus on the optimal long-term treatment.
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Affiliation(s)
- Jun-Il Yoo
- Department of Orthopaedic Surgery, Gyeongang National University Hospital, Gyeongsang National University, Jinju, Korea
| | - Yong-Chan Ha
- Department of Orthopaedic Surgery, Seoul Bumin Hospital, Seoul, Korea
| | - Yonghan Cha
- Department of Orthopaedic Surgery, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
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7
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Gawish MF, Selim SA, Abd El-Star AA, Ahmed SM. Histological and immunohistochemical study of the effect of ozone versus erythropoietin on induced skeletal muscle ischemia-reperfusion injury in adult male rats. Ultrastruct Pathol 2022; 46:96-109. [PMID: 35130793 DOI: 10.1080/01913123.2022.2035874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Ischemia reperfusion (IR) injury of skeletal muscles is a serious problem because of its local and systemic complications. Previous studies reported that ozone and erythropoietin could alleviate IR effect on several organs. The current research is established to evaluate the possible protective role of ozone versus erythropoietin following IR injury of the gastrocnemius muscle. Fifty rats were equally divided into five groups: I control, II ischemia reperfusion (IR), III post-reperfusion ozone treated, IV post-reperfusion erythropoietin-treated, and V recovering post-reperfusion without treatment groups. The right femoral arteries of all rats were clamped for three hours to induce ischemia then clamps were released to allow reperfusion for two hours. Rats of group II were scarified immediately after reperfusion period. Rats of group III were injected with ozone just after reperfusion for 14 days. Animals of group IV were injected with erythropoietin just after reperfusion for 14 days. Rats of group V rats were kept for 2 weeks following reperfusion without treatment. Blood samples were obtained to estimate lactate dehydrogenase (LDH) and creatine kinase (CK) enzymes. Gastrocnemius muscle was processed for measurement of tissue malondialdehyde (MDA), as well as examination by light and electron microscopes. iNOS and PCNA immunohistochemistry and statistical analysis were applied. The current results indicated that both ozone and erythropoietin could be used as protective agents reducing the muscular damage induced by IR injury.
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Affiliation(s)
- Magdy F Gawish
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
| | - Sally A Selim
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
| | - Alyaa A Abd El-Star
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
| | - Samah M Ahmed
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
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8
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Dziembowska I, Wójcik M, Bukowski J, Żekanowska E. Physical Training Increases Erythroferrone Levels in Men. BIOLOGY 2021; 10:biology10111215. [PMID: 34827208 PMCID: PMC8614876 DOI: 10.3390/biology10111215] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/14/2021] [Accepted: 11/17/2021] [Indexed: 02/07/2023]
Abstract
Intense physical activity contributes to an increased demand for red blood cells, which transport oxygen to working muscles. The purpose of this study was to assess the concentration of erythroferrone (ERFE), the novel marker of erythroid activity in athletes, during the beginning of their training season. The study group consisted of 39 athletes aged 23.24 ± 3.77 years. The study was carried out during the athletes' preparatory period of the training cycle. The control group consisted of 34 healthy men aged 22.33 ± 2.77 years. The erythropoietic activity was evaluated by determining athletes' concentrations of erythropoietin (EPO) and erythroferrone (ERFE). The level of physical activity was assessed using the International Physical Activity Questionnaire (IPAQ). In the athletes' group, we observed higher concentrations of EPO (Me = 12.65 mIU/mL) and ERFE (40.00 pg/mL) compared to the control group (EPO: Me = 5.74 mIU/ml, p = 0.001; ERFE: Me = 25.50 pg/mL, p = 0.0034). The average intensity of physical exercise significantly differentiated the participants as far as EPO and ERFE concentrations. These results suggest that intense physical activity, at least at the beginning of the training season, may stimulate EPO production, which increases ERFE release. This seems to be an adaptative mechanism that provides adequate iron for enhanced erythropoiesis.
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Affiliation(s)
- Inga Dziembowska
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (J.B.); (E.Ż.)
- Correspondence:
| | - Małgorzata Wójcik
- Institute of Health Sciences, Hipolit Cegielski State University of Applied Sciences in Gniezno, Ks. Kard. Stefana Wyszyńskiego 38, 62-200 Gniezno, Poland;
| | - Jakub Bukowski
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (J.B.); (E.Ż.)
| | - Ewa Żekanowska
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (J.B.); (E.Ż.)
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9
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Dong B, Li Q, Zhang T, Liang X, Jia M, Fu Y, Bai J, Fu S. Population Genetic Polymorphism of Skeletal Muscle Strength Related Genes in Five Ethnic Minorities in North China. Front Genet 2021; 12:756802. [PMID: 34745225 PMCID: PMC8564566 DOI: 10.3389/fgene.2021.756802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/21/2021] [Indexed: 11/13/2022] Open
Abstract
Musculoskeletal performance is a complex trait influenced by environmental and genetic factors, and it has different manifestations in different populations. Heilongjiang province, located in northern China, is a multi-ethnic region with human cultures dating back to the Paleolithic Age. The Daur, Hezhen, Ewenki, Mongolian and Manchu ethnic groups in Heilongjiang province may have strong physical fitness to a certain extent. Based on the genetic characteristics of significant correlation between some important genes and skeletal muscle function, this study selected 23 SNPs of skeletal muscle strength-related genes and analyzed the distribution of these loci and genetic diversity in the five ethnic groups. Use Haploview (version 4.1) software to calculate the chi-square and the Hardy-Weinberg equilibrium to assess the difference between the two ethnic groups. Use R (version 4.0.2) software to perform principal component analysis of different ethnic groups. Use MEGA (version 7.0) software to construct the phylogenetic tree of different ethnic groups. Use POPGENE (version 1.32) software to calculate the heterozygosity and the FST values of 23 SNPs. Use Arlequin (version 3.5.2.2) software to analyze molecular variance (AMOVA) among 31 populations. The results showed that there was haplotype diversity of VDR, angiotensin-converting enzyme, ACTN3, EPO and IGF1 genes in the five ethnic groups, and there were genetic differences in the distribution of these genes in the five ethnic groups. Among them, the average gene heterozygosity (AVE_HET) of the 23 SNPs in the five populations was 0.398. The FST values of the 23 SNPs among the five ethnic groups varied from 0.0011 to 0.0137. According to the principal component analysis, the genetic distance of Daur, Mongolian and Ewenki is relatively close. According to the phylogenetic tree, the five ethnic groups are clustered together with the Asian population. These data will enrich existing genetic information of ethnic minorities.
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Affiliation(s)
- Bonan Dong
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China (Harbin Medical University), Ministry of Education, Harbin, China
| | - Qiuyan Li
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China (Harbin Medical University), Ministry of Education, Harbin, China.,Editorial Department of International Journal of Genetics, Harbin Medical University, Harbin, China
| | - Tingting Zhang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China (Harbin Medical University), Ministry of Education, Harbin, China
| | - Xiao Liang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China (Harbin Medical University), Ministry of Education, Harbin, China
| | - Mansha Jia
- Scientific Research Centre, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yansong Fu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China (Harbin Medical University), Ministry of Education, Harbin, China
| | - Jing Bai
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China (Harbin Medical University), Ministry of Education, Harbin, China
| | - Songbin Fu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China (Harbin Medical University), Ministry of Education, Harbin, China
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10
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Nijholt KT, Meems LMG, Ruifrok WPT, Maass AH, Yurista SR, Pavez-Giani MG, Mahmoud B, Wolters AHG, van Veldhuisen DJ, van Gilst WH, Silljé HHW, de Boer RA, Westenbrink BD. The erythropoietin receptor expressed in skeletal muscle is essential for mitochondrial biogenesis and physiological exercise. Pflugers Arch 2021; 473:1301-1313. [PMID: 34142210 PMCID: PMC8302562 DOI: 10.1007/s00424-021-02577-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/16/2021] [Accepted: 05/05/2021] [Indexed: 12/13/2022]
Abstract
Erythropoietin (EPO) is a haematopoietic hormone that regulates erythropoiesis, but the EPO-receptor (EpoR) is also expressed in non-haematopoietic tissues. Stimulation of the EpoR in cardiac and skeletal muscle provides protection from various forms of pathological stress, but its relevance for normal muscle physiology remains unclear. We aimed to determine the contribution of the tissue-specific EpoR to exercise-induced remodelling of cardiac and skeletal muscle. Baseline phenotyping was performed on left ventricle and m. gastrocnemius of mice that only express the EpoR in haematopoietic tissues (EpoR-tKO). Subsequently, mice were caged in the presence or absence of a running wheel for 4 weeks and exercise performance, cardiac function and histological and molecular markers for physiological adaptation were assessed. While gross morphology of both muscles was normal in EpoR-tKO mice, mitochondrial content in skeletal muscle was decreased by 50%, associated with similar reductions in mitochondrial biogenesis, while mitophagy was unaltered. When subjected to exercise, EpoR-tKO mice ran slower and covered less distance than wild-type (WT) mice (5.5 ± 0.6 vs. 8.0 ± 0.4 km/day, p < 0.01). The impaired exercise performance was paralleled by reductions in myocyte growth and angiogenesis in both muscle types. Our findings indicate that the endogenous EPO-EpoR system controls mitochondrial biogenesis in skeletal muscle. The reductions in mitochondrial content were associated with reduced exercise capacity in response to voluntary exercise, supporting a critical role for the extra-haematopoietic EpoR in exercise performance.
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Affiliation(s)
- Kirsten T Nijholt
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Laura M G Meems
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Willem P T Ruifrok
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Alexander H Maass
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Salva R Yurista
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Mario G Pavez-Giani
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Belend Mahmoud
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Anouk H G Wolters
- Department of Cell Biology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Dirk J van Veldhuisen
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Wiek H van Gilst
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Herman H W Silljé
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands
| | - B Daan Westenbrink
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, HPC AB31, 9700 RB, P.O. Box 30.001, Groningen, The Netherlands.
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11
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Talukder MAH, Lee JI, Hegarty JP, Gurjar AA, O'Brien M, Karuman Z, Wandling GD, Govindappa PK, Elfar JC. Obligatory role of Schwann cell-specific erythropoietin receptors in erythropoietin-induced functional recovery and neurogenic muscle atrophy after nerve injury. Muscle Nerve 2020; 63:268-272. [PMID: 33205838 DOI: 10.1002/mus.27121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND Erythropoietin (EPO) promotes myelination and functional recovery in rodent peripheral nerve injury (PNI). While EPO receptors (EpoR) are present in Schwann cells, the role of EpoR in PNI recovery is unknown because of the lack of EpoR antagonists or Schwann cell-specific EpoR knockout animals. METHODS Using the Cre-loxP system, we developed a myelin protein zero (Mpz) promoter-driven knockout mouse model of Schwann cell EpoR (MpzCre-EpoRflox/flox , Mpz-EpoR-KO). Mpz-EpoR-KO and control mice were assigned to sciatic nerve crush injury followed by EPO treatment. RESULTS EPO treatment significantly accelerated functional recovery in control mice in contrast to significantly reduced functional recovery in Mpz-EpoR-KO mice. Significant muscle atrophy was found in the injured hindlimb of EPO-treated Mpz-EpoR-KO mice but not in EPO-treated control mice. CONCLUSIONS These preliminary findings provide direct evidence for an obligatory role of Schwann-cell specific EpoR for EPO-induced functional recovery and muscle atrophy following PNI.
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Affiliation(s)
- M A Hassan Talukder
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Jung Il Lee
- Department of Orthopaedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
| | - John P Hegarty
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Anagha A Gurjar
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Mary O'Brien
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Zara Karuman
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Grant D Wandling
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Prem Kumar Govindappa
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - John C Elfar
- Department of Orthopaedics and Rehabilitation, Center for Orthopaedics and Translational Science, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
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12
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Avola M, Mangano GRA, Testa G, Mangano S, Vescio A, Pavone V, Vecchio M. Rehabilitation Strategies for Patients with Femoral Neck Fractures in Sarcopenia: A Narrative Review. J Clin Med 2020; 9:E3115. [PMID: 32993140 PMCID: PMC7600322 DOI: 10.3390/jcm9103115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/21/2020] [Accepted: 09/26/2020] [Indexed: 12/14/2022] Open
Abstract
Sarcopenia is defined as a syndrome characterized by progressive and generalized loss of skeletal muscle mass and strength. It has been identified as one of the most common comorbidities associated with femoral neck fracture (FNF). The aim of this review was to evaluate the impact of physical therapy on FNF patients' function and rehabilitation. The selected articles were randomized controlled trials (RCTs), published in the last 10 years. Seven full texts were eligible for this review: three examined the impact of conventional rehabilitation and nutritional supplementation, three evaluated the effects of rehabilitation protocols compared to new methods and a study explored the intervention with erythropoietin (EPO) in sarcopenic patients with FNF and its potential effects on postoperative rehabilitation. Physical activity and dietary supplementation are the basic tools of prevention and rehabilitation of sarcopenia in elderly patients after hip surgery. The most effective physical therapy seems to be exercise of progressive resistance. Occupational therapy should be included in sarcopenic patients for its importance in cognitive rehabilitation. Erythropoietin and bisphosphonates could represent medical therapy resources.
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Affiliation(s)
- Marianna Avola
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University Hospital Policlinico-San Marco University of Catania, 95123 Catania, Italy; (M.A.); (G.R.A.M.); (M.V.)
| | - Giulia Rita Agata Mangano
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University Hospital Policlinico-San Marco University of Catania, 95123 Catania, Italy; (M.A.); (G.R.A.M.); (M.V.)
| | - Gianluca Testa
- Department of General Surgery and Medical Surgical Specialties, Section of Orthopaedics and Traumatology, University Hospital Policlinico-San Marco, University of Catania, 95123 Catania, Italy; (S.M.); (A.V.); (V.P.)
| | - Sebastiano Mangano
- Department of General Surgery and Medical Surgical Specialties, Section of Orthopaedics and Traumatology, University Hospital Policlinico-San Marco, University of Catania, 95123 Catania, Italy; (S.M.); (A.V.); (V.P.)
| | - Andrea Vescio
- Department of General Surgery and Medical Surgical Specialties, Section of Orthopaedics and Traumatology, University Hospital Policlinico-San Marco, University of Catania, 95123 Catania, Italy; (S.M.); (A.V.); (V.P.)
| | - Vito Pavone
- Department of General Surgery and Medical Surgical Specialties, Section of Orthopaedics and Traumatology, University Hospital Policlinico-San Marco, University of Catania, 95123 Catania, Italy; (S.M.); (A.V.); (V.P.)
| | - Michele Vecchio
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University Hospital Policlinico-San Marco University of Catania, 95123 Catania, Italy; (M.A.); (G.R.A.M.); (M.V.)
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13
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Takemura K, Nishi H, Inagi R. Mitochondrial Dysfunction in Kidney Disease and Uremic Sarcopenia. Front Physiol 2020; 11:565023. [PMID: 33013483 PMCID: PMC7500155 DOI: 10.3389/fphys.2020.565023] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 08/12/2020] [Indexed: 12/19/2022] Open
Abstract
Recently, there has been an increased focus on the influences of mitochondrial dysfunction on various pathologies. Mitochondria are major intracellular organelles with a variety of critical roles, such as adenosine triphosphate production, metabolic modulation, generation of reactive oxygen species, maintenance of intracellular calcium homeostasis, and the regulation of apoptosis. Moreover, mitochondria are attracting attention as a therapeutic target in several diseases. Additionally, a lot of existing agents have been found to have pharmacological effects on mitochondria. This review provides an overview of the mitochondrial change in the kidney and skeletal muscle, which is often complicated with sarcopenia and chronic kidney disease (CKD). Furthermore, the pharmacological effects of therapeutics for CKD on mitochondria are explored.
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Affiliation(s)
- Koji Takemura
- Division of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Nishi
- Division of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Reiko Inagi
- Division of CKD Pathophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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14
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Wu SH, Lu IC, Tai MH, Chai CY, Kwan AL, Huang SH. Erythropoietin Alleviates Burn-induced Muscle Wasting. Int J Med Sci 2020; 17:33-44. [PMID: 31929736 PMCID: PMC6945565 DOI: 10.7150/ijms.38590] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 11/05/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Burn injury induces long-term skeletal muscle pathology. We hypothesized EPO could attenuate burn-induced muscle fiber atrophy. Methods: Rats were allocated into four groups: a sham burn group, an untreated burn group subjected to third degree hind paw burn, and two burn groups treated with weekly or daily EPO for four weeks. Gastrocnemius muscle was analyzed at four weeks post-burn. Results: EPO attenuated the reduction of mean myofiber cross-sectional area post-burn and the level of the protective effect was no significant difference between two EPO-treated groups (p=0.784). Furthermore, EPO decreased the expression of atrophy-related ubiquitin ligase, atrogin-1, which was up-regulated in response to burn. Compared to untreated burn rats, those receiving weekly or daily EPO groups had less cell apoptosis by TUNEL assay. EPO decreased the expression of cleaved caspase 3 (key factor in the caspase-dependent pathway) and apoptosis-inducing factor (implicated in the caspase-independent pathway) after burn. Furthermore, EPO alleviated connective tissue overproduction following burn via transforming growth factor beta 1-Smad2/3 pathway. Daily EPO group caused significant erythrocytosis compared with untreated burn group but not weekly EPO group. Conclusion: EPO therapy attenuated skeletal muscle apoptosis and fibrosis at four weeks post-burn. Weekly EPO may be a safe and effective option in muscle wasting post-burn.
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Affiliation(s)
- Sheng-Hua Wu
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Anesthesiology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Anesthesiology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Anesthesiology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - I-Cheng Lu
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Anesthesiology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Anesthesiology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Hong Tai
- Center for Neuroscience, National Sun Yat-Sen University, Kaohsiung, Taiwan.,Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - Chee-Yin Chai
- Departments of Pathology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Aij-Lie Kwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shu-Hung Huang
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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15
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Zhang Y, Chen L, Wu P, Lang J, Chen L. Intervention with erythropoietin in sarcopenic patients with femoral intertrochanteric fracture and its potential effects on postoperative rehabilitation. Geriatr Gerontol Int 2019; 20:150-155. [PMID: 31837195 DOI: 10.1111/ggi.13845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 10/04/2019] [Accepted: 11/22/2019] [Indexed: 01/08/2023]
Abstract
AIM To explore the intervention with erythropoietin (EPO) in sarcopenic patients with femoral intertrochanteric fractures, and its potential effects on postoperative rehabilitation. METHODS A total of 141 patients with femoral intertrochanteric fracture were selected from January 2018 to January 2019. Patients (aged ≥60 years) with indications for EPO use, but without significant medical history, were selected in the present study. All patients were screened for sarcopenia, and divided into the intervention group and control group according to whether they took EPO. The intervention groups received EPO postoperatively every day for 10 days, whereas the control groups received an equal dose of normal saline. Patients' handgrip strength, appendicular skeletal muscle, duration of hospitalization and postoperative infection rate were assessed by analysis. RESULTS Among sarcopenic women, the handgrip strength was higher in the intervention group than in the control group after a week (P < 0.05). However, no significant effect was found in men (P > 0.05). The appendicular skeletal muscle increment of the intervention group with sarcopenia was markedly increased regardless of sex (P < 0.001). In addition, the postoperative infection rate was lower in the intervention group than the control group (P < 0.05), accompanied by a shorter hospital stay due to EPO administration (P < 0.05). CONCLUSIONS EPO can improve the muscle strength of female patients with sarcopenia during the perioperative period, and increase muscle mass both of women and men. It can improve the symptoms of sarcopenia, but cannot reverse sarcopenia. Additionally, it can reduce the postoperative complications of patients with hip fracture and shorten the length of hospital stay. Therefore, postoperative administration of EPO might potentially promote rapid postoperative rehabilitation. Geriatr Gerontol Int 2020; 20: 150-155.
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Affiliation(s)
- Yiou Zhang
- Wenzhou Medical University Affiliated Cixi Hospital, Ningbo, China
| | - Li Chen
- University of Melbourne Medical School, Melbourne, Victoria, Australia
| | - Peng Wu
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Junzhe Lang
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lei Chen
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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16
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Macias-Velez RJ, Fukushima-Díaz de León L, Beas-Zárate C, Rivera-Cervantes MC. Intranasal Erythropoietin Protects CA1 Hippocampal Cells, Modulated by Specific Time Pattern Molecular Changes After Ischemic Damage in Rats. J Mol Neurosci 2019; 68:590-602. [PMID: 31054091 DOI: 10.1007/s12031-019-01308-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/20/2019] [Indexed: 12/21/2022]
Abstract
Erythropoietin, a multitarget molecule exhibited neuroprotective properties, especially against cerebral ischemia. However, little effort has been made to determinate both the administration pathway and doses that diminishes neuronal damage. In this study, we investigate the effect on CA1 region of different intranasal doses of rHuEPO (500, 1000 and 2500 IU/kg) applied in distinct post-damage times (1, 6, and 24 h) against ischemic cellular damage. Furthermore, most effective dose and time were used to evaluate gen and protein expression changes in 3 key molecules (EPO, EPOR, and βcR). We established that CA1-region present histopathological damage in this ischemia model and that rHuEPO protects cells against damage, particularly at 1000 IU dose. Molecular data shows that EPO and EPOR gene expression are upregulated in a short term after damage treatment with rHuEPO (1 h); oppositely, BcR is upregulated in ischemic and Isc + EPO. Protein expression data displays no changes on EPO expression in evaluated times after treatment, but a tendency to increase 24 h after damage; in the opposite way, EPOR is upregulated significantly 6 h after treatment and this effect last until 24 h. So, our data suggest that a single intranasal dose of rHuEPO (1 h post-injury) provides histological neurorestoration in CA1 hippocampal region, even if we did not observe a dose-dependent dose effect, the medium dose evaluated (1000 UI/kg of b.w.) was more effective and sufficient for induces molecular changes that provides a platform for neuroprotection.
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Affiliation(s)
- R J Macias-Velez
- Laboratorio de Neurobiología Celular, Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - L Fukushima-Díaz de León
- Laboratorio de Neurobiología Celular, Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - C Beas-Zárate
- Laboratorio de Regeneración Neural y Desarrollo Neural, Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - M C Rivera-Cervantes
- Laboratorio de Neurobiología Celular, Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico.
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17
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Derakhshan P. What is the role of erythropoietin prolotherapy on pain relief of knee osteoarthritis? JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2018; 23:50. [PMID: 30057634 PMCID: PMC6040149 DOI: 10.4103/jrms.jrms_802_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Pooya Derakhshan
- Pain Research Center, Iran University of Medical Sciences (IUMS), Tehran, Islamic Republic of Iran
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18
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Pan Y, Yang XH, Guo LL, Gu YH, Qiao QY, Jin HM. Erythropoietin Reduces Insulin Resistance via Regulation of Its Receptor-Mediated Signaling Pathways in db/db Mice Skeletal Muscle. Int J Biol Sci 2017; 13:1329-1340. [PMID: 29104499 PMCID: PMC5666531 DOI: 10.7150/ijbs.19752] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 08/08/2017] [Indexed: 01/09/2023] Open
Abstract
Erythropoietin (EPO) can reduce insulin resistance (IR) in adipocytes; however, it is unknown whether EPO can decrease IR in skeletal muscle. Here we investigated whether EPO could reduce IR in type 2 diabetic mouse skeletal muscle and its possible signaling mechanisms of action. Twelve-week-old db/db diabetic mice were employed in this study. Systemic use of EPO improved glucose profiles in type 2 diabetic mice after 4 and 8 weeks treatment. EPO up-regulated EPOR protein expression in skeletal muscle, and subsequently activated downstream signaling molecules such as JAK2, IRS-1, PI3K, AKT, and eNOS. We next constructed lentivirally-delivered shRNAs against EPOR and transfected skeletal muscle cells to knockdown EPOR. EPOR knockdown inhibited EPO induced JAK2, IRS-1, PI3K, AKT, eNOS signaling transduction, autophagy and Glut 4 translocation, as well as promoted apoptosis in skeletal muscle. Thus, EPO reduces skeletal muscle IR in type 2 diabetic mice via its specific receptor, EPOR. Possible mechanisms involved in its action may include increased autophagy and reduced apoptosis in type 2 diabetic skeletal muscles, which provides a new strategy for the treatment of IR.
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Affiliation(s)
- Yu Pan
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiu Hong Yang
- Division of Nephrology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Li Li Guo
- Hemodialysis Center, Baoshan Branch of Shanghai No.1 People's Hospital, Shanghai, China
| | - Yan Hong Gu
- Division of Nephrology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Qing Yan Qiao
- Division of Nephrology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Hui Min Jin
- Division of Nephrology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
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19
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Gilboa D, Haim-Ohana Y, Deshet-Unger N, Ben-Califa N, Hiram-Bab S, Reuveni D, Zigmond E, Gassmann M, Gabet Y, Varol C, Neumann D. Erythropoietin enhances Kupffer cell number and activity in the challenged liver. Sci Rep 2017; 7:10379. [PMID: 28871174 PMCID: PMC5583293 DOI: 10.1038/s41598-017-11082-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 08/15/2017] [Indexed: 02/07/2023] Open
Abstract
Erythropoietin (EPO) is the main hormone driving mammalian erythropoiesis, with activity mediated via the surface receptor, EPO-R, on erythroid progenitor cells. Recombinant human EPO is currently used clinically for the treatment of anemia in patients with end-stage renal disease, and in certain cancer patients suffering from anemia induced either by the tumor itself or by chemotherapy. EPO-R expression is also detected in non-erythroid cells, including macrophages present in the peritoneum, spleen, and bone marrow (BM). Here we demonstrate that Kupffer cells (KCs) - the liver-resident macrophages - are EPO targets. We show that, in vitro, EPO initiated intracellular signalling and enhanced phagocytosis in a rat KC line (RKC-2) and in sorted KCs. Moreover, continuous EPO administration in mice, resulted in an increased number of KCs, up-regulation of liver EPO-R expression and elevated production of the monocyte chemoattractant CCL2, with corresponding egress of Ly6Chi monocytes from the BM. In a model of acute acetaminophen-induced liver injury, EPO administration increased the recruitment of Ly6Chi monocytes and neutrophils to the liver. Taken together, our results reveal a new role for EPO in stimulating KC proliferation and phagocytosis, and in recruiting Ly6Chi monocytes in response to liver injury.
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Affiliation(s)
- Dafna Gilboa
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yasmin Haim-Ohana
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Naamit Deshet-Unger
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nathalie Ben-Califa
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sahar Hiram-Bab
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Debby Reuveni
- The Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center and Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ehud Zigmond
- The Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center and Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Max Gassmann
- Institute for Veterinary Physiology, Vetsuisse Faculty and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Yankel Gabet
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Chen Varol
- The Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center and Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Drorit Neumann
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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20
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Poniewierska-Baran A, Rajewska-Majchrzak J, Ratajczak MZ. Erythropoietin enhances migration of human neuroblastoma cells: in vitro studies and potential therapeutic implications. JOURNAL OF CANCER STEM CELL RESEARCH 2017; 5:e1003. [PMID: 29862309 PMCID: PMC5978773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The erythropoietin receptor (EpoR) is expressed by cells from the erythroid lineage; however, evidence has accumulated that it is also expressed by some other non-hematopoietic tissues including several solid tumor cells and proposed candidates for cancer stem cells. This is an important concern, because recombinant erythropoietin (EPO) is frequently employed in cancer patients as a drug to ameliorate anemia related to chemo/radiotherapy. In our studies, we employed three human neuroblastoma (NB) cell lines and found in all of them the expression of EpoR and EPO mRNA. The functionality of EpoR in RMS cell lines was evaluated by chemotaxis, adhesion, and direct cell proliferation assays. We noticed that all three human NB cell lines responded to EPO stimulation by enhanced chemotaxis and cell adhesion. However, at the same time we did not observe any significant effect of EPO on proliferation. Based on this EPO supplementation in NB patients employed because of radio/chemotherapy induced anemias may have an unwanted side effect on tumor metastasis.
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Affiliation(s)
- Agata Poniewierska-Baran
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY
- Department of Physiology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Justyna Rajewska-Majchrzak
- Chair and Clinic of Pediatric Surgery and Oncology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Mariusz Z. Ratajczak
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY
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Bianchi S, Fusi J, Franzoni F, Giovannini L, Galetta F, Mannari C, Guidotti E, Tocchini L, Santoro G. "Effects of recombinant human erythropoietin high mimicking abuse doses on oxidative stress processes in rats". Biomed Pharmacother 2016; 82:355-63. [PMID: 27470373 DOI: 10.1016/j.biopha.2016.05.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/12/2016] [Accepted: 05/13/2016] [Indexed: 12/21/2022] Open
Abstract
Although many studies highlight how long-term moderate dose of Recombinant Human Erythropoietin (rHuEPO) treatments result in beneficial and antioxidants effects, few studies take into account the effects that short-term high doses of rHuEPO (mimicking abuse conditions) might have on the oxidative stress processes. Thus, the aim of this study was to investigate the in vivo antioxidant activity of rHuEPO, administered for a short time and at high doses to mimic its sports abuse as doping. Male Wistar healthy rats (n=36) were recruited for the study and were treated with three different concentrations of rHuEPO: 7.5, 15, 30μg/kg. Plasma concentrations of erythropoietin, 8-epi Prostaglandin F2α, plasma and urinary concentrations of NOx were evaluated with specific assay kit, while hematocrit levels were analyzed with an automated cell counter. Antioxidant activity of rHuEPO was assessed analyzing the possible variation of the plasma scavenger capacity against hydroxylic and peroxylic radicals by TOSC (Total Oxyradical Scavenging Capacity) assay. Statistical analyses showed higher hematocrit values, confirmed by a statistically significant increase of plasmatic EPO concentration. An increase in plasma scavenging capacity against peroxyl and hydroxyl radicals, in 8-isoprostane plasmatic concentrations and in plasmatic and urinary levels of NOX were also found in all the treated animals, though not always statistically significant. Our results confirm the literature data regarding the antioxidant action of erythropoietin administered at low doses and for short times, whereas they showed an opposite incremental oxidative stress action when erythropoietin is administered at high doses.
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Affiliation(s)
- Sara Bianchi
- Department of Translational Research and New Technologies in Medicine and Surgery, Pharmacology, Medical School, University of Pisa, Via Roma 55, 56126, Pisa, Italy.
| | - Jonathan Fusi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Ferdinando Franzoni
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Luca Giovannini
- Department of Translational Research and New Technologies in Medicine and Surgery, Pharmacology, Medical School, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - Fabio Galetta
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Claudio Mannari
- Department of Translational Research and New Technologies in Medicine and Surgery, Pharmacology, Medical School, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - Emanuele Guidotti
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Leonardo Tocchini
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Gino Santoro
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126, Pisa, Italy
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22
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Pichon A, Jeton F, El Hasnaoui-Saadani R, Hagström L, Launay T, Beaudry M, Marchant D, Quidu P, Macarlupu JL, Favret F, Richalet JP, Voituron N. Erythropoietin and the use of a transgenic model of erythropoietin-deficient mice. HYPOXIA 2016; 4:29-39. [PMID: 27800506 PMCID: PMC5085313 DOI: 10.2147/hp.s83540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Despite its well-known role in red blood cell production, it is now accepted that erythropoietin (Epo) has other physiological functions. Epo and its receptors are expressed in many tissues, such as the brain and heart. The presence of Epo/Epo receptors in these organs suggests other roles than those usually assigned to this protein. Thus, the aim of this review is to describe the effects of Epo deficiency on adaptation to normoxic and hypoxic environments and to suggest a key role of Epo on main physiological adaptive functions. Our original model of Epo-deficient (Epo-TAgh) mice allowed us to improve our knowledge of the possible role of Epo in O2 homeostasis. The use of anemic transgenic mice revealed Epo as a crucial component of adaptation to hypoxia. Epo-TAgh mice survive well in hypoxic conditions despite low hematocrit. Furthermore, Epo plays a key role in neural control of ventilatory acclimatization and response to hypoxia, in deformability of red blood cells, in cerebral and cardiac angiogenesis, and in neuro- and cardioprotection.
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Affiliation(s)
- Aurélien Pichon
- Laboratory "Hypoxia and Lung" EA 2363, University Paris 13, Sorbonne Paris Cité, Bobigny Cedex; Laboratory of Excellence GR-Ex, Paris; Laboratory MOVE EA 6314, FSS, Poitiers University, Poitiers, France
| | - Florine Jeton
- Laboratory "Hypoxia and Lung" EA 2363, University Paris 13, Sorbonne Paris Cité, Bobigny Cedex; Laboratory of Excellence GR-Ex, Paris
| | | | - Luciana Hagström
- Laboratório Interdisciplinar de Biociências, Universidade de Brasília, Brasília, Brazil
| | - Thierry Launay
- Unité de Biologie Intégrative des Adaptations à l'Exercice, University Paris Saclay and Genopole , University Sorbonne-Paris-Cité, Paris, France
| | - Michèle Beaudry
- Laboratory "Hypoxia and Lung" EA 2363, University Paris 13, Sorbonne Paris Cité, Bobigny Cedex
| | - Dominique Marchant
- Laboratory "Hypoxia and Lung" EA 2363, University Paris 13, Sorbonne Paris Cité, Bobigny Cedex
| | - Patricia Quidu
- Laboratory "Hypoxia and Lung" EA 2363, University Paris 13, Sorbonne Paris Cité, Bobigny Cedex
| | - Jose-Luis Macarlupu
- High Altitude Unit, Laboratories for Research and Development, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Fabrice Favret
- Laboratory "Mitochondrie, Stress Oxydant et Protection Musculaire" EA 3072, University of Strasbourg, Strasbourg, France
| | - Jean-Paul Richalet
- Laboratory "Hypoxia and Lung" EA 2363, University Paris 13, Sorbonne Paris Cité, Bobigny Cedex; Laboratory of Excellence GR-Ex, Paris
| | - Nicolas Voituron
- Laboratory "Hypoxia and Lung" EA 2363, University Paris 13, Sorbonne Paris Cité, Bobigny Cedex; Laboratory of Excellence GR-Ex, Paris
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23
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Sivanesan D, Beauchamp C, Quinou C, Lee J, Lesage S, Chemtob S, Rioux JD, Michnick SW. IL23R (Interleukin 23 Receptor) Variants Protective against Inflammatory Bowel Diseases (IBD) Display Loss of Function due to Impaired Protein Stability and Intracellular Trafficking. J Biol Chem 2016; 291:8673-85. [PMID: 26887945 DOI: 10.1074/jbc.m116.715870] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Indexed: 01/19/2023] Open
Abstract
Genome-wide association studies as well as murine models have shown that the interleukin 23 receptor (IL23R) pathway plays a pivotal role in chronic inflammatory diseases such as Crohn disease (CD), ulcerative colitis, psoriasis, and type 1 diabetes. Genome-wide association studies and targeted re-sequencing studies have revealed the presence of multiple potentially causal variants of the IL23R. Specifically the G149R, V362I, and R381Q IL23Rα chain variants are linked to protection against the development of Crohn disease and ulcerative colitis in humans. Moreover, the exact mechanism of action of these receptor variants has not been elucidated. We show that all three of these IL23Rα variants cause a reduction in IL23 receptor activation-mediated phosphorylation of the signal-transducing activator of transcription 3 (STAT3) and phosphorylation of signal transducing activator of transcription 4 (STAT4). The reduction in signaling is due to lower levels of cell surface receptor expression. For G149R, the receptor retention in the endoplasmic reticulum is due to an impairment of receptor maturation, whereas the R381Q and V362I variants have reduced protein stability. Finally, we demonstrate that the endogenous expression of IL23Rα protein from V362I and R381Q variants in human lymphoblastoid cell lines exhibited lower expression levels relative to susceptibility alleles. Our results suggest a convergent cause of IL23Rα variant protection against chronic inflammatory disease.
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Affiliation(s)
- Durga Sivanesan
- From the Department of Biochemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada, University of Ottawa, Department of Biochemistry, Microbiology, and Immunology, Ottawa, Ontario K1H 8M5, Canada
| | - Claudine Beauchamp
- University of Montreal and the Montreal Heart Institute, Research Center, Montreal, Quebec H1T 1C8, Canada
| | - Christiane Quinou
- CHU Sainte-Justine, Research Centre, Montreal, Quebec H3T 1C5, Canada, and
| | - Jonathan Lee
- University of Ottawa, Department of Biochemistry, Microbiology, and Immunology, Ottawa, Ontario K1H 8M5, Canada
| | - Sylvie Lesage
- Centre of Recherche Hospital Maisonneuve-Rosemont, Department of Microbiology, Infection, and Immunology, University of Montreal, Montreal, Quebec H1T 2M4, Canada
| | - Sylvain Chemtob
- CHU Sainte-Justine, Research Centre, Montreal, Quebec H3T 1C5, Canada, and
| | - John D Rioux
- University of Montreal and the Montreal Heart Institute, Research Center, Montreal, Quebec H1T 1C8, Canada
| | - Stephen W Michnick
- From the Department of Biochemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada,
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24
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Pin F, Busquets S, Toledo M, Camperi A, Lopez-Soriano FJ, Costelli P, Argilés JM, Penna F. Combination of exercise training and erythropoietin prevents cancer-induced muscle alterations. Oncotarget 2015; 6:43202-15. [PMID: 26636649 PMCID: PMC4791226 DOI: 10.18632/oncotarget.6439] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 11/21/2015] [Indexed: 12/11/2022] Open
Abstract
Cancer cachexia is a syndrome characterized by loss of skeletal muscle mass, inflammation, anorexia and anemia, contributing to patient fatigue and reduced quality of life. In addition to nutritional approaches, exercise training (EX) has been proposed as a suitable tool to manage cachexia. In the present work the effect of mild exercise training, coupled to erythropoietin (EPO) administration to prevent anemia, has been tested in tumor-bearing mice. In the C26 hosts, acute exercise does not prevent and even worsens muscle wasting. Such pattern is prevented by EPO co-administration or by the adoption of a chronic exercise protocol. EX and EPO co-treatment spares oxidative myofibers from atrophy and counteracts the oxidative to glycolytic shift, inducing PGC-1α. LLC hosts are responsive to exercise and their treatment with the EX-EPO combination prevents the loss of muscle strength and the onset of mitochondrial ultrastructural alterations, while increases muscle oxidative capacity and intracellular ATP content, likely depending on PGC-1α induction and mitophagy promotion. Consistently, muscle-specific PGC-1α overexpression prevents LLC-induced muscle atrophy and Atrogin-1 hyperexpression. Overall, the present data suggest that low intensisty exercise can be an effective tool to be included in combined therapeutic approaches against cancer cachexia, provided that anemia is coincidently treated in order to enhance the beneficial action of exercise.
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MESH Headings
- Anemia/drug therapy
- Anemia/etiology
- Animals
- Blotting, Western
- Cachexia/etiology
- Cachexia/prevention & control
- Disease Models, Animal
- Epoetin Alfa/pharmacology
- Exercise Therapy/methods
- Female
- Hematinics/pharmacology
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Transgenic
- Microscopy, Electron, Transmission
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/pathology
- Muscular Atrophy/etiology
- Muscular Atrophy/prevention & control
- Neoplasms, Experimental/complications
- Physical Conditioning, Animal
- Real-Time Polymerase Chain Reaction
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Affiliation(s)
- Fabrizio Pin
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Silvia Busquets
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain
| | - Miriam Toledo
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - Andrea Camperi
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Francisco J. Lopez-Soriano
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain
| | - Paola Costelli
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Josep M. Argilés
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain
| | - Fabio Penna
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
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25
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Christensen B, Nellemann B, Thorsen K, Nielsen MM, Pedersen SB, Ornstrup MJ, JØrgensen JOL, Jessen N. Prolonged erythropoietin treatment does not impact gene expression in human skeletal muscle. Muscle Nerve 2015; 51:554-61. [PMID: 25088500 DOI: 10.1002/mus.24355] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2014] [Indexed: 01/12/2023]
Abstract
INTRODUCTION We tested for the presence of erythropoietin receptor (Epo-R) in human skeletal muscle and alterations in gene expression after prolonged use of an erythropoiesis-stimulating agent (ESA). METHODS Nine healthy men were treated with ESA for 10 weeks (darbepoietin alfa). Muscle biopsies were collected before and after treatment. Alterations in gene expression were evaluated by gene array. Western blot and PCR analysis were used to test for Epo-R presence in human skeletal muscle. RESULTS Very low Epo-R mRNA levels were found, but a new and sensitive antibody did not identify Epo-R protein in human skeletal muscle. The between-subject variation in skeletal muscle gene expression was greater than that observed in response to prolonged ESA treatment. CONCLUSIONS Erythropoietin is unlikely to exert direct effects in human skeletal muscle due to a lack of Epo-R protein. Furthermore, prolonged ESA treatment does not seem to exert either direct or indirect effects on skeletal muscle gene expression.
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Affiliation(s)
- Britt Christensen
- Department of Endocrinology and Internal Medicine, NBG/THG, Aarhus University Hospital, Aarhus, Denmark; Medical Research Laboratories, Aarhus University, Aarhus, Denmark; Section of Sports Sciences, Institute of Public Health, Aarhus University, Aarhus, Denmark
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26
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Hiram-Bab S, Liron T, Deshet-Unger N, Mittelman M, Gassmann M, Rauner M, Franke K, Wielockx B, Neumann D, Gabet Y. Erythropoietin directly stimulates osteoclast precursors and induces bone loss. FASEB J 2015; 29:1890-900. [PMID: 25630969 DOI: 10.1096/fj.14-259085] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 12/23/2014] [Indexed: 12/24/2022]
Abstract
Erythropoietin (EPO) primarily regulates red blood cell formation, and EPO serum levels are increased on hypoxic stress (e.g., anemia and altitude). In addition to anemia, recent discoveries suggest new therapeutic indications for EPO, unrelated to erythropoiesis. We investigated the skeletal role of EPO using several models of overexpression (Tg6 mice) and EPO administration (intermittent/continuous, high/low doses) in adult C57Bl6 female mice. Using microcomputed tomography, histology, and serum markers, we found that EPO induced a 32%-61% trabecular bone loss caused by increased bone resorption (+60%-88% osteoclast number) and reduced bone formation rate (-19 to -74%; P < 0.05 throughout). EPO targeted the monocytic lineage by increasing the number of bone monocytes/macrophages, preosteoclasts, and mature osteoclasts. In contrast to the attenuated bone formation in vivo, EPO treatment in vitro did not inhibit osteoblast differentiation and activity, suggesting an indirect effect of EPO on osteoblasts. However, EPO had a direct effect on preosteoclasts by stimulating osteoclastogenesis in isolated cultures (+60%) via the Jak2 and PI3K pathways. In summary, our findings demonstrate that EPO negatively regulates bone mass and thus bears significant clinical implications for the potential management of patients with endogenously or therapeutically elevated EPO levels.
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Affiliation(s)
- Sahar Hiram-Bab
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Tamar Liron
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Naamit Deshet-Unger
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Moshe Mittelman
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Max Gassmann
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Martina Rauner
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Kristin Franke
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Ben Wielockx
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Drorit Neumann
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
| | - Yankel Gabet
- *Department of Cell and Developmental Biology, Department of Anatomy and Anthropology, and Department of Medicine, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Institute of Veterinary Physiology, Vetsuisse Faculty, and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Department of Medicine III, Dresden University Medical Center, Dresden, Germany; and Institute of Pathology, University of Technology, Dresden, Germany
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27
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Larsen MS, Vissing K, Thams L, Sieljacks P, Dalgas U, Nellemann B, Christensen B. Erythropoietin administration alone or in combination with endurance training affects neither skeletal muscle morphology nor angiogenesis in healthy young men. Exp Physiol 2014; 99:1409-20. [PMID: 25128327 DOI: 10.1113/expphysiol.2014.080606] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The aim was to investigate the ability of an erythropoiesis-stimulating agent (ESA), alone or in combination with endurance training, to induce changes in human skeletal muscle fibre and vascular morphology. In a comparative study, 36 healthy untrained men were randomly dispersed into the following four groups: sedentary-placebo (SP, n = 9); sedentary-ESA (SE, n = 9); training-placebo (TP, n = 10); or training-ESA (TE, n = 8). The ESA or placebo was injected once weekly. Training consisted of progressive bicycling three times per week for 10 weeks. Before and after the intervention period, muscle biopsies and magnetic resonance images were collected from the thigh muscles, blood was collected, body composition measured and endurance exercise performance evaluated. The ESA treatment (SE and TE) led to elevated haematocrit, and both ESA treatment and training (SE, TP and TE) increased maximal O2 uptake. With regard to skeletal muscle morphology, TP alone exhibited increases in whole-muscle cross-sectional area and fibre diameter of all fibre types. Also exclusively for TP was an increase in type IIa fibres and a corresponding decrease in type IIx fibres. Furthermore, an overall training effect (TP and TE) was statistically demonstrated in whole-muscle cross-sectional area, muscle fibre diameter and type IIa and type IIx fibre distribution. With regard to muscle vascular morphology, TP and TE both promoted a rise in capillary to muscle fibre ratio, with no differences between the two groups. There were no effects of ESA treatment on any of the muscle morphological parameters. Despite the haematopoietic effects of ESA, we provide novel evidence that endurance training rather than ESA treatment induces adaptational changes in angiogenesis and muscle morphology.
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Affiliation(s)
- Mads S Larsen
- Section of Sports Science, Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - Kristian Vissing
- Section of Sports Science, Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - Line Thams
- Section of Sports Science, Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - Peter Sieljacks
- Section of Sports Science, Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - Ulrik Dalgas
- Section of Sports Science, Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - Birgitte Nellemann
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Britt Christensen
- Section of Sports Science, Institute of Public Health, Aarhus University, Aarhus, Denmark Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
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28
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Morawin B, Turowski D, Naczk M, Siatkowski I, Zembron-Lacny A. THE COMBINATION OF α-LIPOIC ACID INTAKE WITH ECCENTRIC EXERCISE MODULATES ERYTHROPOIETIN RELEASE. Biol Sport 2014; 31:179-85. [PMID: 25177095 PMCID: PMC4135061 DOI: 10.5604/20831862.1111435] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2014] [Indexed: 12/19/2022] Open
Abstract
The generation of reactive nitrogen/oxygen species (RN/OS) represents an important mechanism in erythropoietin (EPO) expression and skeletal muscle adaptation to physical and metabolic stress. RN/OS generation can be modulated by intense exercise and nutrition supplements such as α-lipoic acid, which demonstrates both anti- and pro-oxidative action. The study was designed to show the changes in the haematological response through the combination of α-lipoic acid intake with running eccentric exercise. Sixteen healthy young males participated in the randomised and placebo-controlled study. The exercise trial involved a 90-min run followed by a 15-min eccentric phase at 65% VO2max (-10% gradient). It significantly increased serum concentrations of nitric oxide (NO), hydrogen peroxide (H2O2) and pro-oxidative products such as 8-isoprostanes (8-iso), lipid peroxides (LPO) and protein carbonyls (PC). α-Lipoic acid intake (Thiogamma: 1200 mg daily for 10 days prior to exercise) resulted in a 2-fold elevation of serum H2O2 concentration before exercise, but it prevented the generation of NO, 8-iso, LPO and PC at 20 min, 24 h, and 48 h after exercise. α-Lipoic acid also elevated serum EPO level, which highly correlated with NO/H2O2 ratio (r = 0.718, P < 0.01). Serum total creatine kinase (CK) activity, as a marker of muscle damage, reached a peak at 24 h after exercise (placebo 732 ± 207 IU · L-1, α-lipoic acid 481 ± 103 IU · L-1), and correlated with EPO (r = 0.478, P < 0.01) in the α-lipoic acid group. In conclusion, the intake of high α-lipoic acid modulates RN/OS generation, enhances EPO release and reduces muscle damage after running eccentric exercise.
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Affiliation(s)
- B Morawin
- University School of Physical Education in Poznan, Poland
| | - D Turowski
- Department of Biochemistry, Institute of Sport, Warsaw, Poland
| | - M Naczk
- University School of Physical Education in Poznan, Poland
| | - I Siatkowski
- Department of Mathematical and Statistical Methods, Poznan University of Life Sciences, Poland
| | - A Zembron-Lacny
- Department of Biology Basis of Physical Education and Sport, University of Zielona Gora, Poland
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29
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Lamon S, Zacharewicz E, Stephens AN, Russell AP. EPO-receptor is present in mouse C2C12 and human primary skeletal muscle cells but EPO does not influence myogenesis. Physiol Rep 2014; 2:e00256. [PMID: 24760510 PMCID: PMC4002236 DOI: 10.1002/phy2.256] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The role and regulation of the pleiotropic cytokine erythropoietin (EPO) in skeletal muscle are controversial. EPO exerts its effects by binding its specific receptor (EPO‐R), which activates intracellular signaling and gene transcription in response to internal and external stress signals. EPO is suggested to play a direct role in myogenesis via the EPO‐R, but several studies have questioned the effect of EPO treatment in muscle in vitro and in vivo. The lack of certainty surrounding the use of nonspecific EPO‐R antibodies contributes to the ambiguity of the field. Our study demonstrates that the EPO‐R gene and protein are expressed at each stage of mouse C2C12 and human skeletal muscle cell proliferation and differentiation and validates a specific antibody for the detection of the EPO‐R protein. However, in our experimental conditions, EPO treatment had no effect on mouse C2C12 and human muscle cell proliferation, differentiation, protein synthesis or EPO‐R expression. While an increase in Akt and MAPK phosphorylation was observed, we demonstrate that this effect resulted from the stress caused by changing medium and not from EPO treatment. We therefore suggest that skeletal muscle EPO‐R might be present in a nonfunctional form, or too lowly expressed to play a role in muscle cell function. The EPO‐R is expressed at the gene and protein level in mouse and human myoblasts and myotubes. However, EPO treatment does not seem to activate the EPO‐R and its downstream signaling pathways in skeletal muscle cells, questioning its functionality.
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Affiliation(s)
- Séverine Lamon
- Centre for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
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