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Catinelli BB, Rossignoli PS, Floriano JF, Carr AM, de Oliveira RG, Dos Santos NJ, Úbeda LCC, Spadella MA, Hallur RLS, Sobrevia L, Felisbino SL, Calderon IMP, Barbosa AMP, Rudge MVC. Reversal of diabetic-induced myopathy by swimming exercise in pregnant rats: a translational intervention study. Sci Rep 2022; 12:7375. [PMID: 35513450 PMCID: PMC9072313 DOI: 10.1038/s41598-022-10801-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/29/2022] [Indexed: 11/09/2022] Open
Abstract
Gestational diabetes mellitus (GDM) plus rectus abdominis muscle (RAM) myopathy predicts long-term urinary incontinence (UI). Atrophic and stiff RAM are characteristics of diabetes-induced myopathy (DiM) in pregnant rats. This study aimed to determine whether swimming exercise (SE) has a therapeutic effect in mild hyperglycemic pregnant rats model. We hypothesized that SE training might help to reverse RAM DiM. Mild hyperglycemic pregnant rats model was obtained by a unique subcutaneous injection of 100 mg/kg streptozotocin (diabetic group) or citrate buffer (non-diabetic group) on the first day of life in Wistar female newborns. At 90 days of life, the rats are mated and randomly allocated to remain sedentary or subjected to a SE protocol. The SE protocol started at gestational day 0 and consisted of 60 min/day for 6 days/week in a period of 20 days in a swim tunnel. On day 21, rats were sacrificed, and RAM was collected and studied by picrosirius red, immunohistochemistry, and transmission electron microscopy. The SE protocol increased the fiber area and diameter, and the slow-twitch and fast-twitch fiber area and diameter in the diabetic exercised group, a finding was also seen in control sedentary animals. There was a decreased type I collagen but not type III collagen area and showed a similar type I/type III ratio compared with the control sedentary group. In conclusion, SE during pregnancy reversed the RAM DiM in pregnant rats. These findings may be a potential protocol to consider in patients with RAM damage caused by GDM.
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Affiliation(s)
- Bruna B Catinelli
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Patrícia S Rossignoli
- Department of Physiotherapy and Occupational Therapy, School of Philosophy and Sciences, São Paulo State University (UNESP), Marília, São Paulo, Brazil
| | - Juliana F Floriano
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Aline M Carr
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Rafael G de Oliveira
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Nilton J Dos Santos
- Laboratory of Extracellular Matrix Biology, Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.,Department of Structural and Functional Biology, Institute of Biology (IB), UNICAMP, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Lara C C Úbeda
- University of Marília (UNIMAR), Marília, São Paulo, Brazil
| | | | - Raghavendra L S Hallur
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.,Pravara Institute of Medical Sciences (Deemed to be University), Loni, Rahata Taluk, Ahmednagar District, Maharashtra, 413736, India
| | - Luis Sobrevia
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.,Cellular and Molecular Physiology Laboratory (CMPL), Department of Obstetrics, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024, Santiago, Chile.,Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, 41012, Seville, Spain.,University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, QLD, 4029, Australia.,Division of Pathology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen (UMCG), 9713GZ, Groningen, The Netherlands
| | - Sérgio L Felisbino
- Laboratory of Extracellular Matrix Biology, Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Iracema M P Calderon
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Angélica M P Barbosa
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.,Department of Physiotherapy and Occupational Therapy, School of Philosophy and Sciences, São Paulo State University (UNESP), Marília, São Paulo, Brazil
| | - Marilza V C Rudge
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
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Vesentini G, Barbosa AMP, Floriano JF, Felisbino SL, Costa SMB, Piculo F, Marini G, Nunes SK, Reyes DRA, Marcondes JPC, Hallur RLS, Rozza AL, Magalhães CG, Costa R, Abbade JF, Corrente JE, Calderon IMP, Matheus SMM, Rudge MVC. Deleterious effects of gestational diabetes mellitus on the characteristics of the rectus abdominis muscle associated with pregnancy-specific urinary incontinence. Diabetes Res Clin Pract 2020; 166:108315. [PMID: 32679058 DOI: 10.1016/j.diabres.2020.108315] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 06/05/2020] [Accepted: 07/07/2020] [Indexed: 12/15/2022]
Abstract
AIMS To evaluate the effects of gestational diabetes mellitus (GDM) on the structural characteristics of the rectus abdominis muscle (RAM) and its indirect effects on pregnancy-specific urinary incontinence (PSUI). METHODS A total of 92 pregnant women were divided into four groups, according to their clinical conditions: non-GDM continent, non-GDM associated PSUI, GDM continent and GDM associated PSUI. The muscle morphometry (histochemistry and immunohistochemistry) for the fiber types and collagen fiber distribution, the ultrastructural analysis (transmission electron microscopy), the protein expression of fiber types and calcium signaling (Western blotting), and the content of types I and III collagen fiber (ELISA) in RAM collected at delivery were assessed. RESULTS The GDM groups presented a significantly increased number of slow fibers and slow-twitch oxidative fiber expression; decreased fiber area, number of fast fibers, and area of collagen; an increase in central nuclei; ultrastructural alterations with focal lesion areas such as myeloid structures, sarcomere disorganization, and mitochondrial alteration. The PSUI groups presented a considerable decrease in types I and III collagen contents and the localization of collagen fiber. CONCLUSIONS Our data reveal that GDM causes morphological, biochemical and physiological changes in the RAM, and this might predispose women to PSUI.
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Affiliation(s)
- Giovana Vesentini
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Angélica M P Barbosa
- São Paulo State University (UNESP), School of Philosophy and Sciences, Department of Physical Therapy and Occupational Therapy, Marilia, São Paulo State, Brazil
| | - Juliana F Floriano
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Sérgio L Felisbino
- São Paulo State University (UNESP), Institute of Biosciences, Department of Morphology, Botucatu, São Paulo State, Brazil
| | - Sarah M B Costa
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Fernanda Piculo
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Gabriela Marini
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil; Universidade Sagrado Coração, Department of Health Sciences, Bauru, São Paulo, Brazil
| | - Sthefanie K Nunes
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - David R A Reyes
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - João P C Marcondes
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Raghavendra L S Hallur
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Ariane L Rozza
- São Paulo State University (UNESP), Institute of Biosciences, Department of Morphology, Botucatu, São Paulo State, Brazil
| | - Cláudia G Magalhães
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Roberto Costa
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Joelcio F Abbade
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - José E Corrente
- São Paulo State University (UNESP), Institute of Biosciences, Biostatistics Department, Botucatu, São Paulo, Brazil
| | - Iracema M P Calderon
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil
| | - Selma M M Matheus
- São Paulo State University (UNESP), Institute of Biosciences, Department of Anatomy, Botucatu, São Paulo State, Brazil
| | - Marilza V C Rudge
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, São Paulo State, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Department of Gynecology and Obstetrics, Botucatu, Sao Paulo, Brazil.
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Polis B, Samson AO. Role of the metabolism of branched-chain amino acids in the development of Alzheimer's disease and other metabolic disorders. Neural Regen Res 2020; 15:1460-1470. [PMID: 31997805 PMCID: PMC7059578 DOI: 10.4103/1673-5374.274328] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Alzheimer’s disease is an incurable chronic neurodegenerative disorder and the leading cause of dementia, imposing a growing economic burden upon society. The disease progression is associated with gradual deposition of amyloid plaques and the formation of neurofibrillary tangles within the brain parenchyma, yet severe dementia is the culminating phase of the enduring pathology. Converging evidence suggests that Alzheimer’s disease-related cognitive decline is the outcome of an extremely complex and persistent pathophysiological process. The disease is characterized by distinctive abnormalities apparent at systemic, histological, macromolecular, and biochemical levels. Moreover, besides the well-defined and self-evident characteristic profuse neurofibrillary tangles, dystrophic neurites, and amyloid-beta deposits, the Alzheimer’s disease-associated pathology includes neuroinflammation, substantial neuronal loss, apoptosis, extensive DNA damage, considerable mitochondrial malfunction, compromised energy metabolism, and chronic oxidative stress. Likewise, distinctive metabolic dysfunction has been named a leading cause and a hallmark of Alzheimer’s disease that is apparent decades prior to disease manifestation. State-of-the-art metabolomics studies demonstrate that altered branched-chain amino acids (BCAAs) metabolism accompanies Alzheimer’s disease development. Lower plasma valine levels are correlated with accelerated cognitive decline, and, conversely, an increase in valine concentration is associated with reduced risk of Alzheimer’s disease. Additionally, a clear BCAAs-related metabolic signature has been identified in subjects with obesity, diabetes, and atherosclerosis. Also, arginine metabolism is dramatically altered in Alzheimer’s disease human brains and animal models. Accordingly, a potential role of the urea cycle in the Alzheimer’s disease development has been hypothesized, and preclinical studies utilizing intervention in the urea cycle and/or BCAAs metabolism have demonstrated clinical potential. Continual failures to offer a competent treatment strategy directed against amyloid-beta or Tau proteins-related lesions, which could face all challenges of the multifaceted Alzheimer’s disease pathology, led to the hypothesis that hyperphosphorylated Tau and deposited amyloid-beta proteins are just hallmarks or epiphenomena, but not the ultimate causes of Alzheimer’s disease. Therefore, approaches targeting amyloid-beta or Tau are not adequate to cure the disease. Accordingly, the modern scientific vision of Alzheimer’s disease etiology and pathogenesis must reach beyond the hallmarks, and look for alternative strategies and areas of research.
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Affiliation(s)
- Baruh Polis
- Drug Discovery Laboratory, The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Abraham O Samson
- Drug Discovery Laboratory, The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
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Nascimento CM, Ingles M, Salvador-Pascual A, Cominetti MR, Gomez-Cabrera MC, Viña J. Sarcopenia, frailty and their prevention by exercise. Free Radic Biol Med 2019; 132:42-49. [PMID: 30176345 DOI: 10.1016/j.freeradbiomed.2018.08.035] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/08/2018] [Accepted: 08/30/2018] [Indexed: 12/12/2022]
Abstract
Sarcopenia is a major component of the frailty syndrome, both being considered as strong predictors of morbidity, disability, and death in older people. In this review, we explore the definitions of sarcopenia and frailty and summarize the current knowledge on their relationship with oxidative stress and the possible therapeutic interventions to prevent or treat them, including exercise-based interventions and multimodal strategies. We highlight the relevance of the impairment of the nervous system and of the anabolic response (protein synthesis) in muscle aging leading to frailty and sarcopenia. We also discuss the importance of malnutrition and physical inactivity in these geriatric syndromes. Finally, we propose multimodal interventions, including exercise programs and nutritional supplementation, as the strategies to prevent and treat both sarcopenia and frailty.
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Affiliation(s)
- C M Nascimento
- Laboratorio de Biologia do Envelhecimento (LABEN), Departamento de Gerontologia UFSCar, Rod. Washington Luis, km 235, São Carlos, SP, Brazil
| | - M Ingles
- Freshage Research Group. Department of Physiotherapy. University of Valencia, CIBERFES, INCLIVA, Spain
| | - A Salvador-Pascual
- Freshage Research Group. Department of Physiology. University of Valencia, CIBERFES, INCLIVA, Spain
| | - M R Cominetti
- Laboratorio de Biologia do Envelhecimento (LABEN), Departamento de Gerontologia UFSCar, Rod. Washington Luis, km 235, São Carlos, SP, Brazil
| | - M C Gomez-Cabrera
- Freshage Research Group. Department of Physiology. University of Valencia, CIBERFES, INCLIVA, Spain.
| | - J Viña
- Freshage Research Group. Department of Physiology. University of Valencia, CIBERFES, INCLIVA, Spain
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Resistance training alone or combined with leucine supplementation improves the serum lipid profile of diabetic rats, whereas leucine alone does not. Endocr Regul 2018; 52:146-151. [DOI: 10.2478/enr-2018-0018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Objectives. Diabetes mellitus is associated with dyslipidemia, which contributes to a higher risk of thrombosis, atherosclerosis and cardiovascular disease. This study evaluated the effects of leucine and resistance training on the serum lipid profile in rats with streptozotocin-induced diabetes for 8 weeks.
Methods. Wistar rats with neonatal streptozotocin-induced diabetes were treated with leucine supplementation (5%) and/or resistance training (3 days per week) for 8 weeks, and divided in DL (diabetic and leucine), DT (diabetic and resistance training group) and DLT (diabetic, leucine and resistance training) groups. Others 2 groups of animals received isonitrogen AIN-93M diet that was defined as a control diet: group D (diabetic untreated) and group C (non-diabetic).
Results. The decrease in serum total cholesterol and increase in high-density lipoprotein cholesterol (HDL-C) was observed in the resistance training-induced diabetic rats when compared with diabetic rats. There was no change in serum lipid profile in leucine-supplemented diabetic rats and no synergistic effect of leucine and resistance training. The fasting glucose levels were reduced in all animals treated compared to D group.
Conclusion. The diabetic trained rats demonstrate a protective effect of resistance training on the serum lipid profile.
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Martins CEC, Lima VBDS, Schoenfeld BJ, Tirapegui J. Effects of leucine supplementation and resistance training on myopathy of diabetic rats. Physiol Rep 2018; 5:e13273. [PMID: 28536139 PMCID: PMC5449559 DOI: 10.14814/phy2.13273] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 04/03/2017] [Accepted: 04/06/2017] [Indexed: 11/24/2022] Open
Abstract
Leucine supplementation and resistance training positively influence the protein translation process and the cell signaling mTOR (mammalian target of rapamycin) pathway that regulates muscle protein balance and muscle remodeling, and thus may be therapeutic to diabetic myopathy. However, the effect of a combined intervention has not been well studied. Forty male Wistar rats were divided into five groups, control (C), diabetic control (D), diabetic + trained (DT), diabetic + L-leucine (DL), diabetic + L-leucine + trained (DLT). The supplementation of 5% leucine in chow, and resistance training were conducted for 8 weeks postweaning of rats. The extensor digitorum longus was used to assess signaling proteins involved in muscle protein synthesis, and the gastrocnemius and soleus were used for determination of muscle weight. Blood samples were collected for biochemical assays. Strength and ambulation tests were employed to evaluate motor performance. Results showed that both leucine supplementation and resistance training elevated the activity of mTOR-p70S6K in diabetic rats (P < 0.05). Moreover, though leucine supplementation in combination with resistance training demonstrated synergistic effects on p70S6K (P < 0.05), both treatments were capable of recovering motor performance (P < 0.05). In conclusion, 5% leucine supplementation combined with resistance training has the potential to attenuate muscle loss and motor performance decrements in diabetic rats, at least in part through increased protein synthesis.
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Affiliation(s)
- Carlos Eduardo C Martins
- Department of Food Science and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Vanessa B de S Lima
- Department of Food Science and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Julio Tirapegui
- Department of Food Science and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
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Li X, Zhou Y, Zhang X, Cao X, Wu C, Guo P. Cordycepin stimulates autophagy in macrophages and prevents atherosclerotic plaque formation in ApoE -/- mice. Oncotarget 2017; 8:94726-94737. [PMID: 29212261 PMCID: PMC5706907 DOI: 10.18632/oncotarget.21886] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/21/2017] [Indexed: 12/12/2022] Open
Abstract
Autophagy in macrophages plays a key role in the pathogenesis and progression of atherosclerosis and has become a potential therapeutic target. Here we show that cordycepin (Cpn), a natural derivative of adenosine, markedly reduced atherosclerotic plaque and ameliorated associated symptoms such as dyslipidemia, hyperglycemia and inflammation in ApoE-/- mice. Supplementation of Cpn dose-dependently inhibited oxLDL-elicited foam cell formation and modulated intracellular cholesterol homeostasis by inhibiting cholesterol uptake and promoting cholesterol efflux in RAW264.7 macrophages. Notably, Cpn exhibited significant stimulating effect on macrophage autophagy, as estimated by western blotting, immunofluorescent staining and autophagic vacuoles observation by transmission electron microscopy. The inhibitive effects of Cpn on foam cell formation were dramatically deteriorated in the presence of various autophagy inhibitors, suggesting that autophagy participate, at least in part, in the atheroprotective role of Cpn. Further investigations using different autophagy inhibitors and specific siRNAs for AMP-activated protein kinase (AMPK) gamma1 subunit indicated that Cpn may stimulate macrophage autophagy through AMPK-mTOR pathway. Together, our results demonstrated Cpn as a potential therapeutic agent for the prevention and treatment of atherosclerosis, and the autophagic activity presents a novel mechanism for Cpn-mediated atheroprotection.
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Affiliation(s)
- Xin Li
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P.R. China
| | - Yue Zhou
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P.R. China
| | - Xue Zhang
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P.R. China
| | - Xiaoxue Cao
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P.R. China
| | - Chongming Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P.R. China
| | - Peng Guo
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P.R. China
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