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Hagve M, Pereira SL, Walker DK, Engelen MPKJ, Deutz NEP. Statin treatment reduces leucine turnover, but does not affect endogenous production of beta-hydroxy-beta-methylbutyrate (HMB). Metabolism 2024; 156:155920. [PMID: 38677663 DOI: 10.1016/j.metabol.2024.155920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/26/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Statins, or hydroxy-methyl-glutaryl coenzyme A (HMG-CoA) reductase inhibitors, are one of the most commonly prescribed medications for lowering cholesterol. Myopathic side-effects ranging from pain and soreness to critical rhabdomyolysis are commonly reported and often lead to discontinuation. The pathophysiological mechanism is, in general, ascribed to a downstream reduction of Coenzyme Q10 synthesis. HMG-CoA is a metabolite of leucine and its corresponding keto acid α-ketoisocaproic acid (KIC) and β-hydroxy-β-methylbutyrate (HMB), however, little is known about the changes in the metabolism of leucine and its metabolites in response to statins. OBJECTIVE We aimed to investigate if statin treatment has implications on the upstream metabolism of leucine to KIC and HMB, as well as on other branched chain amino acids (BCAA). DESIGN 12 hyperlipidemic older adults under statin treatment were recruited. The study was conducted as a paired prospective study. Included participants discontinued their statin treatment for 4 weeks before they returned for baseline measurements (before). Statin treatment was then reintroduced, and the participants returned for a second study day 7 days after reintroduction (after statin). On study days, participants were injected with stable isotope pulses for measurement of the whole-body production (WBP) of all BCAA (leucine, isoleucine and valine), along with their respective keto acids and HMB. RESULTS We found a reduced leucine WBP (22 %, p = 0.0033), along with a reduction in valine WBP (13 %, p = 0.0224). All other WBP of BCAA and keto acids were unchanged. There were no changes in the WBP of HMB. CONCLUSIONS Our study shows that statin inhibition of HMG-CoA reductase has an upstream impact on the turnover of leucine and valine. Whether this impairment in WBP of leucine may contribute to the known pathophysiological side effects of statins on muscle remains to be further investigated.
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Affiliation(s)
- Martin Hagve
- Center for Translational Research in Aging & Longevity, Dept. Health and Kinesiology, Texas A&M University, College Station, TX, USA.
| | | | - Dillon K Walker
- Center for Translational Research in Aging & Longevity, Dept. Health and Kinesiology, Texas A&M University, College Station, TX, USA
| | - Marielle P K J Engelen
- Center for Translational Research in Aging & Longevity, Dept. Health and Kinesiology, Texas A&M University, College Station, TX, USA.
| | - Nicolaas E P Deutz
- Center for Translational Research in Aging & Longevity, Dept. Health and Kinesiology, Texas A&M University, College Station, TX, USA.
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2
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Mangone LA, Taylor BA, Schmelzer R, Noh SG, White MC, Kwon OS, Thompson PD. Skeletal muscle mitochondrial capacity in patients with statin-associated muscle symptoms (SAMS). Open Heart 2024; 11:e002551. [PMID: 38388189 PMCID: PMC10884190 DOI: 10.1136/openhrt-2023-002551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/11/2024] [Indexed: 02/24/2024] Open
Abstract
OBJECTIVE The objective of this article is to evaluate near-infrared spectroscopy (NIRS), a non-invasive technique to assess tissue oxygenation and mitochondrial function, as a diagnostic tool for statin-associated muscle symptoms (SAMS). METHODS We verified SAMS in 39 statin-treated patients (23 women) using a double-blind, placebo-controlled, cross-over protocol. Subjects with suspected SAMS were randomised to simvastatin 20 mg/day or placebo for 8 weeks, followed by a 4-week no treatment period and then assigned to the alternative treatment, either simvastatin or placebo. Tissue oxygenation was measured before and after each statin or placebo treatment using NIRS during handgrip exercise at increasing intensities of maximal voluntary contraction (MVC). RESULTS 44% (n=17) of patients were confirmed as having SAMS (11 women) because they reported discomfort only during simvastatin treatment. There were no significant differences in percent change in tissue oxygenation in placebo versus statin at all % MVCs in all subjects. The percent change in tissue oxygenation also did not differ significantly between confirmed and unconfirmed SAMS subjects on statin (-2.4% vs -2.4%, respectively) or placebo treatment (-1.1% vs -9%, respectively). The percent change in tissue oxygenation was reduced after placebo therapy in unconfirmed SAMS subjects (-10.2%) (p≤0.01) suggesting potential measurement variability. CONCLUSIONS NIRS in the forearm cannot differentiate between confirmed and unconfirmed SAMS, but further research is needed to assess the usability of NIRS as a diagnostic tool for SAMS. TRIAL REGISTRATION NUMBER NCT03653663.
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Affiliation(s)
- Laura A Mangone
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA
| | - Beth A Taylor
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA
| | - Robert Schmelzer
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA
| | - Sung Gi Noh
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA
| | - Michael C White
- School of Pharmacy, University of Connecticut, Storrs, Connecticut, USA
| | - Oh Sung Kwon
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA
- Center on Aging and Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut, USA
| | - Paul D Thompson
- Heart and Vascular Institute, Hartford HealthCare, Hartford, Connecticut, USA
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3
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Bennett NK, Lee M, Orr AL, Nakamura K. Systems-level analyses dissociate genetic regulators of reactive oxygen species and energy production. Proc Natl Acad Sci U S A 2024; 121:e2307904121. [PMID: 38207075 PMCID: PMC10801874 DOI: 10.1073/pnas.2307904121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 11/20/2023] [Indexed: 01/13/2024] Open
Abstract
Respiratory chain dysfunction can decrease ATP and increase reactive oxygen species (ROS) levels. Despite the importance of these metabolic parameters to a wide range of cellular functions and disease, we lack an integrated understanding of how they are differentially regulated. To address this question, we adapted a CRISPRi- and FACS-based platform to compare the effects of respiratory gene knockdown on ROS to their effects on ATP. Focusing on genes whose knockdown is known to decrease mitochondria-derived ATP, we showed that knockdown of genes in specific respiratory chain complexes (I, III, and CoQ10 biosynthesis) increased ROS, whereas knockdown of other low ATP hits either had no impact (mitochondrial ribosomal proteins) or actually decreased ROS (complex IV). Moreover, although shifting metabolic conditions profoundly altered mitochondria-derived ATP levels, it had little impact on mitochondrial or cytosolic ROS. In addition, knockdown of a subset of complex I subunits-including NDUFA8, NDUFB4, and NDUFS8-decreased complex I activity, mitochondria-derived ATP, and supercomplex level, but knockdown of these genes had differential effects on ROS. Conversely, we found an essential role for ether lipids in the dynamic regulation of mitochondrial ROS levels independent of ATP. Thus, our results identify specific metabolic regulators of cellular ATP and ROS balance that may help dissect the roles of these processes in disease and identify therapeutic strategies to independently target energy failure and oxidative stress.
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Affiliation(s)
- Neal K. Bennett
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA94158
| | - Megan Lee
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA94158
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD20815
| | - Adam L. Orr
- Appel Alzheimer's Disease Research Institute, Weill Cornell Medicine, New York, NY10021
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY10021
| | - Ken Nakamura
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA94158
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD20815
- Graduate Program in Biomedical Sciences, University of California, San Francisco, CA94143
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco, CA94158
- Department of Neurology, University of California, San Francisco, CA94158
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4
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Bennett NK, Lee M, Orr AL, Nakamura K. Systems-level analyses dissociate genetic regulators of reactive oxygen species and energy production. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.14.562276. [PMID: 37904938 PMCID: PMC10614765 DOI: 10.1101/2023.10.14.562276] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Respiratory chain dysfunction can decrease ATP and increase reactive oxygen species (ROS) levels. Despite the importance of these metabolic parameters to a wide range of cellular functions and disease, we lack an integrated understanding of how they are differentially regulated. To address this question, we adapted a CRISPRi- and FACS- based platform to compare the effects of respiratory gene knockdown on ROS to their effects on ATP. Focusing on genes whose knockdown is known to decrease mitochondria-derived ATP, we showed that knockdown of genes in specific respiratory chain complexes (I, III and CoQ10 biosynthesis) increased ROS, whereas knockdown of other low ATP hits either had no impact (mitochondrial ribosomal proteins) or actually decreased ROS (complex IV). Moreover, although shifting metabolic conditions profoundly altered mitochondria-derived ATP levels, it had little impact on mitochondrial or cytosolic ROS. In addition, knockdown of a subset of complex I subunits-including NDUFA8, NDUFB4, and NDUFS8-decreased complex I activity, mitochondria-derived ATP and supercomplex level, but knockdown of these genes had differential effects on ROS. Conversely, we found an essential role for ether lipids in the dynamic regulation of mitochondrial ROS levels independent of ATP. Thus, our results identify specific metabolic regulators of cellular ATP and ROS balance that may help dissect the roles of these processes in disease and identify therapeutic strategies to independently target energy failure and oxidative stress.
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Affiliation(s)
- Neal K. Bennett
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA, 94158, USA
| | - Megan Lee
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA, 94158, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815
| | - Adam L. Orr
- Appel Alzheimer’s Disease Research Institute, Weill Cornell Medicine, New York, NY, USA
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Ken Nakamura
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA, 94158, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815
- Graduate Programs in Neuroscience and Biomedical Sciences, University of California San Francisco, San Francisco, California, USA
- Department of Neurology, University of California, San Francisco, San Francisco, California, 94158, USA
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Bin Dayel FF, Alfirevic A, Chadwick AE. Developing In Vitro Models to Define the Role of Direct Mitochondrial Toxicity in Frequently Reported Drug-Induced Rhabdomyolysis. Biomedicines 2023; 11:biomedicines11051485. [PMID: 37239154 DOI: 10.3390/biomedicines11051485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
The United States Food and Drug Administration Adverse Event Reporting System (FAERS) logged 27,140 rhabdomyolysis cases from 2004 to 31 March 2020. We used FAERS to identify 14 drugs frequently reported in 6583 rhabdomyolysis cases and to investigate whether mitochondrial toxicity is a common pathway of drug-induced rhabdomyolysis by these drugs. Preliminary screening for mitochondrial toxicity was performed using the acute metabolic switch assay, which is adapted here for use in murine L6 cells. Fenofibrate, risperidone, pregabalin, propofol, and simvastatin lactone drugs were identified as mitotoxic and underwent further investigation, using real-time respirometry (Seahorse Technology) to provide more detail on the mechanism of mitochondrial-induced toxicity. To confirm the human relevance of the findings, fenofibrate and risperidone were evaluated in primary human skeletal muscle-derived cells (HSKMDC), using the acute metabolic switch assay and real-time respirometry, which confirmed this designation, although the toxic effects on the mitochondria were more pronounced in HSKMDC. Overall, these studies demonstrate that the L6 model of acute modification may find utility as an initial, cost-effective screen for identifying potential myotoxicants with relevance to humans and, importantly, that drug-induced mitochondrial dysfunction may be a common mechanism shared by some drugs that induce myotoxicity.
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Affiliation(s)
- Faten F Bin Dayel
- Department of Pharmacology and Therapeutics, University of Liverpool, Ashton Street, Liverpool L69 3GE, UK
| | - Ana Alfirevic
- Department of Pharmacology and Therapeutics, University of Liverpool, Ashton Street, Liverpool L69 3GE, UK
| | - Amy E Chadwick
- Department of Pharmacology and Therapeutics, University of Liverpool, Ashton Street, Liverpool L69 3GE, UK
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Allard NAE, Janssen L, Lagerwaard B, Nuijten MAH, Bongers CCWG, Rodenburg RJ, Thompson PD, Eijsvogels TMH, Assendelft WJJ, Schirris TJJ, Timmers S, Hopman MTE. Prolonged Moderate-Intensity Exercise Does Not Increase Muscle Injury Markers in Symptomatic or Asymptomatic Statin Users. J Am Coll Cardiol 2023; 81:1353-1364. [PMID: 37019582 DOI: 10.1016/j.jacc.2023.01.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 04/07/2023]
Abstract
BACKGROUND Statin use may exacerbate exercise-induced skeletal muscle injury caused by reduced coenzyme Q10 (CoQ10) levels, which are postulated to produce mitochondrial dysfunction. OBJECTIVES We determined the effect of prolonged moderate-intensity exercise on markers of muscle injury in statin users with and without statin-associated muscle symptoms. We also examined the association between leukocyte CoQ10 levels and muscle markers, muscle performance, and reported muscle symptoms. METHODS Symptomatic (n = 35; age 62 ± 7 years) and asymptomatic statin users (n = 34; age 66 ± 7 years) and control subjects (n = 31; age 66 ± 5 years) walked 30, 40, or 50 km/d for 4 consecutive days. Muscle injury markers (lactate dehydrogenase, creatine kinase, myoglobin, cardiac troponin I, and N-terminal pro-brain natriuretic peptide), muscle performance, and reported muscle symptoms were assessed at baseline and after exercise. Leukocyte CoQ10 was measured at baseline. RESULTS All muscle injury markers were comparable at baseline (P > 0.05) and increased following exercise (P < 0.001), with no differences in the magnitude of exercise-induced elevations among groups (P > 0.05). Muscle pain scores were higher at baseline in symptomatic statin users (P < 0.001) and increased similarly in all groups following exercise (P < 0.001). Muscle relaxation time increased more in symptomatic statin users than in control subjects following exercise (P = 0.035). CoQ10 levels did not differ among symptomatic (2.3 nmol/U; IQR: 1.8-2.9 nmol/U), asymptomatic statin users (2.1 nmol/U; IQR: 1.8-2.5 nmol/U), and control subjects (2.1 nmol/U; IQR: 1.8-2.3 nmol/U; P = 0.20), and did not relate to muscle injury markers, fatigue resistance, or reported muscle symptoms. CONCLUSIONS Statin use and the presence of statin-associated muscle symptoms does not exacerbate exercise-induced muscle injury after moderate exercise. Muscle injury markers were not related to leukocyte CoQ10 levels. (Exercise-induced Muscle Damage in Statin Users; NCT05011643).
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Affiliation(s)
- Neeltje A E Allard
- Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Lando Janssen
- Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands; Radboud Institute for Health Sciences, Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Bart Lagerwaard
- Human and Animal Physiology, Wageningen University, Wageningen, the Netherlands
| | - Malou A H Nuijten
- Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Coen C W G Bongers
- Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Richard J Rodenburg
- Radboud Center for Mitochondrial Medicine, Translational Metabolic Laboratory, Department of Pediatrics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Paul D Thompson
- Division of Cardiology, Hartford Hospital, Hartford, Connecticut, USA
| | - Thijs M H Eijsvogels
- Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Willem J J Assendelft
- Department of Primary and Community Care, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Tom J J Schirris
- Radboud Institute for Molecular Life Sciences, Department of Pharmacology and Toxicology, Radboud Centre for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Silvie Timmers
- Human and Animal Physiology, Wageningen University, Wageningen, the Netherlands
| | - Maria T E Hopman
- Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands.
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Yao W, Guo B, Jin T, Bao Z, Wang T, Wen S, Huang F. Garcinol Promotes the Formation of Slow-Twitch Muscle Fibers by Inhibiting p300-Dependent Acetylation of PGC-1α. Int J Mol Sci 2023; 24:ijms24032702. [PMID: 36769025 PMCID: PMC9916769 DOI: 10.3390/ijms24032702] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/31/2022] [Accepted: 01/05/2023] [Indexed: 02/04/2023] Open
Abstract
The conversion of skeletal muscle fiber from fast-twitch to slow-twitch is crucial for sustained contractile and stretchable events, energy homeostasis, and anti-fatigue ability. The purpose of our study was to explore the mechanism and effects of garcinol on the regulation of skeletal muscle fiber type transformation. Forty 21-day-old male C57/BL6J mice (n = 10/diet) were fed a control diet or a control diet plus garcinol at 100 mg/kg (Low Gar), 300 mg/kg (Mid Gar), or 500 mg/kg (High Gar) for 12 weeks. The tibialis anterior (TA) and soleus muscles were collected for protein and immunoprecipitation analyses. Dietary garcinol significantly downregulated (p < 0.05) fast myosin heavy chain (MyHC) expression and upregulated (p < 0.05) slow MyHC expression in the TA and soleus muscles. Garcinol significantly increased (p < 0.05) the activity of peroxisome proliferator-activated receptor gamma co-activator 1α (PGC-1α) and markedly decreased (p < 0.05) the acetylation of PGC-1α. In vitro and in vivo experiments showed that garcinol decreased (p < 0.05) lactate dehydrogenase activity and increased (p < 0.05) the activities of malate dehydrogenase and succinic dehydrogenase. In addition, the results of C2C12 myotubes showed that garcinol treatment increased (p < 0.05) the transformation of glycolytic muscle fiber to oxidative muscle fiber by 45.9%. Garcinol treatment and p300 interference reduced (p < 0.05) the expression of fast MyHC but increased (p < 0.05) the expression of slow MyHC in vitro. Moreover, the acetylation of PGC-1α was significantly decreased (p < 0.05). Garcinol promotes the transformation of skeletal muscle fibers from the fast-glycolytic type to the slow-oxidative type through the p300/PGC-1α signaling pathway in C2C12 myotubes.
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Affiliation(s)
- Weilei Yao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Baoyin Guo
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Taimin Jin
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Zhengxi Bao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Tongxin Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Shu Wen
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Feiruo Huang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Correspondence: ; Tel.: +86-10-87286912; Fax: +86-10-87280408
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Statins Induce Locomotion and Muscular Phenotypes in Drosophila melanogaster That Are Reminiscent of Human Myopathy: Evidence for the Role of the Chloride Channel Inhibition in the Muscular Phenotypes. Cells 2022; 11:cells11223528. [PMID: 36428957 PMCID: PMC9688544 DOI: 10.3390/cells11223528] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/17/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022] Open
Abstract
The underlying mechanisms for statin-induced myopathy (SIM) are still equivocal. In this study, we employ Drosophila melanogaster to dissect possible underlying mechanisms for SIM. We observe that chronic fluvastatin treatment causes reduced general locomotion activity and climbing ability. In addition, transmission microscopy of dissected skeletal muscles of fluvastatin-treated flies reveals strong myofibrillar damage, including increased sarcomere lengths and Z-line streaming, which are reminiscent of myopathy, along with fragmented mitochondria of larger sizes, most of which are round-like shapes. Furthermore, chronic fluvastatin treatment is associated with impaired lipid metabolism and insulin signalling. Mechanistically, knockdown of the statin-target Hmgcr in the skeletal muscles recapitulates fluvastatin-induced mitochondrial phenotypes and lowered general locomotion activity; however, it was not sufficient to alter sarcomere length or elicit myofibrillar damage compared to controls or fluvastatin treatment. Moreover, we found that fluvastatin treatment was associated with reduced expression of the skeletal muscle chloride channel, ClC-a (Drosophila homolog of CLCN1), while selective knockdown of skeletal muscle ClC-a also recapitulated fluvastatin-induced myofibril damage and increased sarcomere lengths. Surprisingly, exercising fluvastatin-treated flies restored ClC-a expression and normalized sarcomere lengths, suggesting that fluvastatin-induced myofibrillar phenotypes could be linked to lowered ClC-a expression. Taken together, these results may indicate the potential role of ClC-a inhibition in statin-associated muscular phenotypes. This study underlines the importance of Drosophila melanogaster as a powerful model system for elucidating the locomotion and muscular phenotypes, promoting a better understanding of the molecular mechanisms underlying SIM.
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Infection-Induced Rhabdomyolysis in an Elderly Patient on Stable Rosuvastatin Therapy: A Case Report and Review of the Literature. Am J Ther 2022; 29:e657-e661. [PMID: 33443867 DOI: 10.1097/mjt.0000000000001325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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10
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The main side effects of statins in clinical practice. КЛИНИЧЕСКАЯ ПРАКТИКА 2022. [DOI: 10.17816/clinpract108076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Statins have long occupied a central place in cardiovascular medicine, being an integral component of the prevention and treatment of atherosclerotic cardiovascular diseases (coronary heart disease and its main clinical forms, angina pectoris and myocardial infarction; transient ischemic attacks, ischemic strokes, etc.). By blocking a key enzyme of cholesterol biosynthesis, 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoA-reductase), statins normalize the parameters of the lipid spectrum, primarily, the serum levels of atherogenic low-density lipoprotein cholesterol. However, in addition to the beneficial effects of statins, side effects are also characteristic, which are a significant problem in modern clinical practice due to the fact that they can cause dangerous disorders, forcing physicians to reduce dosages or completely cancel these drugs. Understanding the side effects and the mechanisms underlying their formation is important for improving the measures for the early detection, prevention and treatment of those disorders. This article discusses such side effects of statins as myotoxicity, hepatotoxicity, nephrotoxicity. The pathogenetic mechanisms underlying these toxic effects of statins are discussed. A particular attention is paid to the effect of statins on the oxidative stress, the mechanisms of oxidative damage to cellular macromolecules (lipids, proteins and DNA) and their potential role in the development of myotoxicity, hepatotoxicity and nephrotoxicity.
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Thomas C, Wurzer L, Malle E, Ristow M, Madreiter-Sokolowski CT. Modulation of Reactive Oxygen Species Homeostasis as a Pleiotropic Effect of Commonly Used Drugs. FRONTIERS IN AGING 2022; 3:905261. [PMID: 35821802 PMCID: PMC9261327 DOI: 10.3389/fragi.2022.905261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 05/18/2022] [Indexed: 01/17/2023]
Abstract
Age-associated diseases represent a growing burden for global health systems in our aging society. Consequently, we urgently need innovative strategies to counteract these pathological disturbances. Overwhelming generation of reactive oxygen species (ROS) is associated with age-related damage, leading to cellular dysfunction and, ultimately, diseases. However, low-dose ROS act as crucial signaling molecules and inducers of a vaccination-like response to boost antioxidant defense mechanisms, known as mitohormesis. Consequently, modulation of ROS homeostasis by nutrition, exercise, or pharmacological interventions is critical in aging. Numerous nutrients and approved drugs exhibit pleiotropic effects on ROS homeostasis. In the current review, we provide an overview of drugs affecting ROS generation and ROS detoxification and evaluate the potential of these effects to counteract the development and progression of age-related diseases. In case of inflammation-related dysfunctions, cardiovascular- and neurodegenerative diseases, it might be essential to strengthen antioxidant defense mechanisms in advance by low ROS level rises to boost the individual ROS defense mechanisms. In contrast, induction of overwhelming ROS production might be helpful to fight pathogens and kill cancer cells. While we outline the potential of ROS manipulation to counteract age-related dysfunction and diseases, we also raise the question about the proper intervention time and dosage.
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Affiliation(s)
- Carolin Thomas
- Laboratory of Energy Metabolism Institute of Translational Medicine Department of Health Sciences and Technology ETH Zurich, Schwerzenbach, Switzerland
| | - Lia Wurzer
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Ernst Malle
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Michael Ristow
- Laboratory of Energy Metabolism Institute of Translational Medicine Department of Health Sciences and Technology ETH Zurich, Schwerzenbach, Switzerland
| | - Corina T. Madreiter-Sokolowski
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
- *Correspondence: Corina T. Madreiter-Sokolowski,
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12
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Nsaibia MJ, Devendran A, Goubaa E, Bouitbir J, Capoulade R, Bouchareb R. Implication of Lipids in Calcified Aortic Valve Pathogenesis: Why Did Statins Fail? J Clin Med 2022; 11:jcm11123331. [PMID: 35743402 PMCID: PMC9225514 DOI: 10.3390/jcm11123331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 12/12/2022] Open
Abstract
Calcific Aortic Valve Disease (CAVD) is a fibrocalcific disease. Lipoproteins and oxidized phospholipids play a substantial role in CAVD; the level of Lp(a) has been shown to accelerate the progression of valve calcification. Indeed, oxidized phospholipids carried by Lp(a) into the aortic valve stimulate endothelial dysfunction and promote inflammation. Inflammation and growth factors actively promote the synthesis of the extracellular matrix (ECM) and trigger an osteogenic program. The accumulation of ECM proteins promotes lipid adhesion to valve tissue, which could initiate the osteogenic program in interstitial valve cells. Statin treatment has been shown to have the ability to diminish the death rate in subjects with atherosclerotic impediments by decreasing the serum LDL cholesterol levels. However, the use of HMG-CoA inhibitors (statins) as cholesterol-lowering therapy did not significantly reduce the progression or the severity of aortic valve calcification. However, new clinical trials targeting Lp(a) or PCSK9 are showing promising results in reducing the severity of aortic stenosis. In this review, we discuss the implication of lipids in aortic valve calcification and the current findings on the effect of lipid-lowering therapy in aortic stenosis.
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Affiliation(s)
- Mohamed J. Nsaibia
- Department of Cell Biology and Molecular Medicine, Rutgers University, Newark, NJ 07103, USA;
| | - Anichavezhi Devendran
- Department of Medicine, Cardiovascular Research Institute, The Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Eshak Goubaa
- Thomas Jefferson University East Falls, Philadelphia, PA 19144, USA;
| | - Jamal Bouitbir
- Department of Pharmaceutical Sciences, Division of Molecular and Systems Toxicology, University of Basel, 4056 Basel, Switzerland;
| | - Romain Capoulade
- L’institut Du Thorax, Nantes Université, CNRS, INSERM, F-44000 Nantes, France;
| | - Rihab Bouchareb
- Department of Medicine, Division of Nephrology, The Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: or ; Tel.: +1-(212)-241-8471
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13
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García-Fernández-Bravo I, Torres-Do-Rego A, López-Farré A, Galeano-Valle F, Demelo-Rodriguez P, Alvarez-Sala-Walther LA. Undertreatment or Overtreatment With Statins: Where Are We? Front Cardiovasc Med 2022; 9:808712. [PMID: 35571155 PMCID: PMC9105719 DOI: 10.3389/fcvm.2022.808712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 03/29/2022] [Indexed: 12/26/2022] Open
Abstract
Statins, in addition to healthy lifestyle interventions, are the cornerstone of lipid-lowering therapy. Other low-density lipoprotein (LDL)-lowering drugs include ezetimibe, bile acid sequestrants, and PCSK9 inhibitors. As new evidence emerges from new clinical trials, therapeutic goals change, leading to renewed clinical guidelines. Nowadays, LDL goals are getting lower, leading to the "lower is better" paradigm in LDL-cholesterol (LDL-C) management. Several observational studies have shown that LDL-C control in real life is suboptimal in both primary and secondary preventions. It is critical to enhance the adherence to guideline recommendations through shared decision-making between clinicians and patients, with patient engagement in selecting interventions based on individual values, preferences, and associated conditions and comorbidities. This narrative review summarizes the evidence regarding the benefits of lipid-lowering drugs in reducing cardiovascular events, the pleiotropic effect of statins, real-world data on overtreatment and undertreatment of lipid-lowering therapies, and the changing LDL-C in targets in the clinical guidelines of dyslipidemias over the years.
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Affiliation(s)
| | - Ana Torres-Do-Rego
- Internal Medicine, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Grupo (departamento) de investigación Riesgo cardiovascular y lípidos, Instituto de investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Antonio López-Farré
- Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Francisco Galeano-Valle
- Internal Medicine, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Grupo (departamento) de investigación Riesgo cardiovascular y lípidos, Instituto de investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Pablo Demelo-Rodriguez
- Internal Medicine, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Grupo (departamento) de investigación Riesgo cardiovascular y lípidos, Instituto de investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis A. Alvarez-Sala-Walther
- Internal Medicine, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Grupo (departamento) de investigación Riesgo cardiovascular y lípidos, Instituto de investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
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14
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Zhang Q, Qu H, Chen Y, Luo X, Chen C, Xiao B, Ding X, Zhao P, Lu Y, Chen AF, Yu Y. Atorvastatin Induces Mitochondria-Dependent Ferroptosis via the Modulation of Nrf2-xCT/GPx4 Axis. Front Cell Dev Biol 2022; 10:806081. [PMID: 35309902 PMCID: PMC8927716 DOI: 10.3389/fcell.2022.806081] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/03/2022] [Indexed: 01/25/2023] Open
Abstract
As one of the cornerstones of clinical cardiovascular disease treatment, statins have an extensive range of applications. However, statins commonly used have side reactions, especially muscle-related symptoms (SAMS), such as muscle weakness, pain, cramps, and severe condition of rhabdomyolysis. This undesirable muscular effect is one of the chief reasons for statin non-adherence and/or discontinuation, contributing to adverse cardiovascular outcomes. Moreover, the underlying mechanism of muscle cell damage is still unclear. Here, we discovered that ferroptosis, a programmed iron-dependent cell death, serves as a mechanism in statin-induced myopathy. Among four candidates including atorvastatin, lovastatin, rosuvastatin, and pravastatin, only atorvastatin could lead to ferroptosis in human cardiomyocytes (HCM) and murine skeletal muscle cells (C2C12), instead of human umbilical vein endothelial cell (HUVEC). Atorvastatin inhibits HCM and C2C12 cell viability in a dose-dependent manner, accompanying with significant augmentation in intracellular iron ions, reactive oxygen species (ROS), and lipid peroxidation. A noteworthy investigation found that those alterations particularly occurred in mitochondria and resulted in mitochondrial dysfunction. Biomarkers of myocardial injury increase significantly during atorvastatin intervention. However, all of the aforementioned enhancement could be restrained by ferroptosis inhibitors. Mechanistically, GSH depletion and the decrease in nuclear factor erythroid 2-related factor 2 (Nrf2), glutathione peroxidase 4 (GPx4), and xCT cystine–glutamate antiporter (the main component is SLC7A11) are involved in atorvastatin-induced muscular cell ferroptosis and damage. The downregulation of GPx4 in mitochondria-mediated ferroptosis signaling may be the core of it. In conclusion, our findings explore an innovative underlying pathophysiological mechanism of atorvastatin-induced myopathy and highlight that targeting ferroptosis serves as a protective strategy for clinical application.
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Affiliation(s)
- Qi Zhang
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hang Qu
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yinghui Chen
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xueyang Luo
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chong Chen
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Bing Xiao
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaowei Ding
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Pengjun Zhao
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yanan Lu
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Alex F. Chen
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Yu Yu, ; Alex F. Chen,
| | - Yu Yu
- Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Yu Yu, ; Alex F. Chen,
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15
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Dahiya P, Hussain MA, Mazumder S. mtROS Induced via TLR-2-SOCE Signaling Plays Proapoptotic and Bactericidal Role in Mycobacterium fortuitum-Infected Head Kidney Macrophages of Clarias gariepinus. Front Immunol 2022; 12:748758. [PMID: 34987503 PMCID: PMC8720869 DOI: 10.3389/fimmu.2021.748758] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/29/2021] [Indexed: 12/11/2022] Open
Abstract
The mechanisms underlying Mycobacterium fortuitum-induced mycobacteriosis remain unexplored. Using head kidney macrophages (HKM) from catfish (Clarias gariepinus), we report that Ca2+ surge across mitochondrial-Ca2+ uniporter (MICU), and consequent mitochondrial ROS (mtROS) production, is imperative for mycobactericidal activity. Inhibition of mtROS alleviated HKM apoptosis and enhanced bacterial survival. Based on RNA interference (RNAi) and inhibitor studies, we demonstrate that the Toll-like receptor (TLR)-2–endoplasmic reticulum (ER) stress–store-operated calcium entry (SOCE) axis is instrumental for activating the mt-Ca2+/mtROS cascade in M. fortuitum-infected HKM. Additionally, pharmacological inhibition of mtROS attenuated the expression of CHOP, STIM1, and Orai1, which suggests a positive feedback loop between ER-stress-induced SOCE and mtROS production. Elevated tumor necrosis factor alpha (TNF-α) levels and caspase-8 activity were observed in HKM consequent to M. fortuitum infection, and our results implicate that mtROS is crucial in activating the TNF-mediated caspase-8 activation. Our results for the first time demonstrate mitochondria as an innate immune signaling center regulating mycobacteriosis in fish. We conclude that M. fortuitum-induced persistent SOCE signaling leads to mtROS production, which in turn activates the TNF-α/caspase-8 axis culminating in HKM apoptosis and bacterial clearance.
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Affiliation(s)
- Priyanka Dahiya
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi, India
| | - Md Arafat Hussain
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi, India
| | - Shibnath Mazumder
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi, India.,Faculty of Life Sciences & Biotechnology, South Asian University, New Delhi, India
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16
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Wei J, Huan Y, Heng Z, Zhao C, Jia L, Yu Y, Gao Y. Dynamic urine proteome changes in a rat model of simvastatin-induced skeletal muscle injury. J Proteomics 2022; 254:104477. [PMID: 34990819 DOI: 10.1016/j.jprot.2021.104477] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/19/2021] [Accepted: 12/20/2021] [Indexed: 10/19/2022]
Abstract
Statin-associated muscle symptoms (SAMS) are the main side effects of statins. Currently, there are no effective biomarkers for accurate clinical diagnosis. Urine is not subject to homeostatic control and therefore accumulates early changes, making it an ideal biomarker source. We therefore examined urine proteome changes associated with SAMS. Here, we established a SAMS rat model by intragastric intubation with simvastatin (80 mg/kg). Biochemical analyses and hematoxylin and eosin staining were used to evaluate the degree of muscle injury. The urine proteome on days 3, 6, 9 and 14 was profiled using liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). Differential proteins on day 14 of SAMS were mainly associated with glycolysis/gluconeogenesis, pyruvate metabolism, metabolism of reactive oxygen species and apoptosis, which were associated with the pathological mechanism of SAMS. Among the 14 differential proteins on day 3, Fibrinogen gamma chain (FIBG), Osteopontin (OSTP) and C-reactive protein (CRP) were associated with muscle damage, while EH domain-containing protein 1(EHD1), Cubilin (CUBN) and Fibronectin (FINC) were associated with the pathogenic mechanisms of SAMS. Our preliminary results indicated that the urine proteome can reflect early changes in the SAMS rat model, providing the potential for monitoring drug side effects in future clinical research. SIGNIFICANCE: This study demonstrate that the early muscle damage caused by simvastatin can be reflected in urinary proteins. The urine proteome also has the potential to reflect the pharmacology and toxicology of drugs in future clinical research.
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Affiliation(s)
- Jing Wei
- Clinical Research Center, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China; Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing 100875, China
| | - Yuhang Huan
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing 100875, China; Beijing Advanced Innovation Center for Genomics (ICG), Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
| | - Ziqi Heng
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing 100875, China
| | - Chenyang Zhao
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing 100875, China
| | - Lulu Jia
- Clinical Research Center, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Yuncui Yu
- Clinical Research Center, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Youhe Gao
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing 100875, China.
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17
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Zhang L, Yu X, Wu Y, Fu H, Xu P, Zheng Y, Wen L, Yang X, Zhang F, Hu M, Wang H, Liu X, Qiao J, Peng C, Gao R, Saffery R, Fu Y, Qi H, Tong C, Kilby MD, Baker PN. Gestational Diabetes Mellitus-Associated Hyperglycemia Impairs Glucose Transporter 3 Trafficking in Trophoblasts Through the Downregulation of AMP-Activated Protein Kinase. Front Cell Dev Biol 2021; 9:722024. [PMID: 34796169 PMCID: PMC8593042 DOI: 10.3389/fcell.2021.722024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 10/08/2021] [Indexed: 12/25/2022] Open
Abstract
AMP-activated protein kinase (AMPK) is an important regulator of glucose metabolism, and glucose transporter 3 (GLUT3) is an efficient glucose transporter in trophoblasts. Whether placental AMPK and GLUT3 respond accordingly to gestational diabetes mellitus (GDM) remains uncertain. Here, we explored the regulatory role of AMPK in the GLUT3-dependent uptake of glucose by placental trophoblasts and the viability of the cells. In this study, the level of glycolysis in normal and GDM-complicated placentas was assessed by LC-MS/MS. The trophoblast hyperglycemia model was induced by the incubation of HTR8/SVneo cells with a high glucose concentration. GDM animal models were generated with db/ + mice and C57BL/6J mice fed a high-fat diet, and AMPK was manipulated by the oral administration of metformin. The uptake of glucose by trophoblasts was assessed using 2-NBDG or 2-deoxy-D-[3H] glucose. The results showed that GDM is associated with impaired glycolysis, AMPK activity, GLUT3 expression in the plasma membrane (PM) and cell survival in the placenta. Hyperglycemia induced similar changes in trophoblasts, and these changes were rescued by AMPK activation. Both hyperglycemic db/ + and high-fat diet-induced GDM mice exhibited a compromised AMPK–GLUT3 axis and suppressed cell viability in the placenta as well as excessive fetal growth, and all of these effects were partially alleviated by metformin. Taken together, our findings support the notion that AMPK activation upregulates trophoblast glucose uptake by stimulating GLUT3 translocation, which is beneficial for viability. Thus, the modulation of glucose metabolism in trophoblasts by targeting AMPK might ameliorate the adverse intrauterine environment caused by GDM.
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Affiliation(s)
- Li Zhang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Xinyang Yu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Yue Wu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Huijia Fu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Ping Xu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Biochemistry and Molecular Biology, University of Texas McGovern Medical School, Houston, TX, United States
| | - Yangxi Zheng
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Biochemistry and Molecular Biology, University of Texas McGovern Medical School, Houston, TX, United States.,Department of Stem Cell Transplantation and Cell Therapy, MD Anderson Cancer Center, Houston, TX, United States
| | - Li Wen
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Xiaotao Yang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Fumei Zhang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Mingyu Hu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Hao Wang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Xiyao Liu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Juan Qiao
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Chuan Peng
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China
| | - Rufei Gao
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Richard Saffery
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Department of Paediatrics, Cancer, Disease and Developmental Epigenetics, Murdoch Children's Research Institute, University of Melbourne, Parkville, VIC, Australia
| | - Yong Fu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Hongbo Qi
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Chao Tong
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Mark D Kilby
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
| | - Philip N Baker
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,College of Life Sciences, University of Leicester, Leicester, United Kingdom
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18
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Shapira KE, Shapira G, Schmukler E, Pasmanik-Chor M, Shomron N, Pinkas-Kramarski R, Henis YI, Ehrlich M. Autophagy is induced and modulated by cholesterol depletion through transcription of autophagy-related genes and attenuation of flux. Cell Death Discov 2021; 7:320. [PMID: 34716312 PMCID: PMC8556405 DOI: 10.1038/s41420-021-00718-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 01/18/2023] Open
Abstract
Perturbations to cellular homeostasis, including reduction of the cholesterol level, induce autophagy, a self-digestion process of cellular constituents through an autophagosomal-lysosomal pathway. In accord with its function as a membrane organizer and metabolic sentinel, the cellular response to cholesterol depletion comprises multiple phenomena, including the activation of transcriptional responses, accumulation of reactive oxygen species (ROS), and activation of stress-related signaling pathways. However, the molecular mechanisms by which cholesterol depletion regulates autophagy and the putative involvement of transcriptional responses, ROS and/or stress-related signaling in autophagy regulation in this biological context are not fully understood. Here, we find that cholesterol depletion regulates autophagy at three different levels. First, employing RNA-seq, we show that cholesterol depletion increases the expression of autophagy-related genes independent of ROS or JNK activity. Second, analysis of LC3 lipidation and intracellular localization, and of p62 levels and degradation kinetics, reveals that cholesterol depletion mediates autophagy induction while interfering with autophagic flux. Of note, only the latter depends on ROS accumulation and JNK activity. In view of the common use of cholesterol-reducing drugs as therapeutic agents, our findings have important implications for multiple cellular settings in which autophagy plays a prominent role.
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Affiliation(s)
- Keren E Shapira
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Guy Shapira
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
- Edmond J Safra Center for Bioinformatics, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Eran Schmukler
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Metsada Pasmanik-Chor
- Bioinformatics Unit, George S. Wise Faculty of Life Science, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Noam Shomron
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
- Edmond J Safra Center for Bioinformatics, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Ronit Pinkas-Kramarski
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Yoav I Henis
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel.
| | - Marcelo Ehrlich
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel.
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19
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Sanvee GM, Hitzfeld L, Bouitbir J, Krähenbühl S. mTORC2 is an important target for simvastatin-associated toxicity in C2C12 cells and mouse skeletal muscle - Roles of Rap1 geranylgeranylation and mitochondrial dysfunction. Biochem Pharmacol 2021; 192:114750. [PMID: 34461118 DOI: 10.1016/j.bcp.2021.114750] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 12/25/2022]
Abstract
Statins decrease the serum LDL-cholesterol concentration and reduce the risk for cardiovascular diseases but can cause myopathy, which may be related to mTORC inhibition. In the current study, we investigated which mTORC is inhibited by simvastatin and by which mechanisms. In C2C12 myoblasts and myotubes and mouse gastrocnemius, simvastatin was cytotoxic and inhibited S6rp and Akt Ser473 phosphorylation, indicating inhibition of mTORC1 and mTORC2, respectively. In contrast to simvastatin, the mTORC1 inhibitor rapamycin did not inhibit mTORC2 activity and was not cytotoxic. Like simvastatin, knock-down of Rictor, an essential component of mTORC2, impaired Akt Ser473 and S6rp phosphorylation and was cytotoxic for C2C12 myoblasts, suggesting that mTORC2 inhibition is an important myotoxic mechanism. The investigation of the mechanism of mTORC2 inhibition showed that simvastatin impaired Ras farnesylation, which was prevented by farnesol but without restoring mTORC2 activity. In comparison, Rap1 knock-down reduced mTORC2 activity and was cytotoxic for C2C12 myoblasts. Simvastatin impaired Rap1 geranylgeranylation and function, which was prevented by geranylgeraniol. In addition, simvastatin and the complex III inhibitor antimycin A caused mitochondrial superoxide accumulation and impaired the activity of mTORC2, which could partially be prevented by the antioxidant MitoTEMPO. In conclusion, mTORC2 inhibition is an important mechanism of simvastatin-induced myotoxicity. Simvastatin inhibits mTORC2 by impairing geranylgeranylation of Rap1 and by inducing mitochondrial dysfunction.
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Affiliation(s)
- Gerda M Sanvee
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland
| | - Leonie Hitzfeld
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland
| | - Jamal Bouitbir
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland; Division of Molecular and Systemic Toxicology, Department of Pharmaceutical Sciences, University of Basel, Switzerland; Swiss Centre for Applied Human Research (SCAHT), Switzerland
| | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland; Swiss Centre for Applied Human Research (SCAHT), Switzerland.
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20
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Sartori R, Hagg A, Zampieri S, Armani A, Winbanks CE, Viana LR, Haidar M, Watt KI, Qian H, Pezzini C, Zanganeh P, Turner BJ, Larsson A, Zanchettin G, Pierobon ES, Moletta L, Valmasoni M, Ponzoni A, Attar S, Da Dalt G, Sperti C, Kustermann M, Thomson RE, Larsson L, Loveland KL, Costelli P, Megighian A, Merigliano S, Penna F, Gregorevic P, Sandri M. Perturbed BMP signaling and denervation promote muscle wasting in cancer cachexia. Sci Transl Med 2021; 13:eaay9592. [PMID: 34349036 DOI: 10.1126/scitranslmed.aay9592] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 03/18/2021] [Indexed: 02/05/2023]
Abstract
Most patients with advanced solid cancers exhibit features of cachexia, a debilitating syndrome characterized by progressive loss of skeletal muscle mass and strength. Because the underlying mechanisms of this multifactorial syndrome are incompletely defined, effective therapeutics have yet to be developed. Here, we show that diminished bone morphogenetic protein (BMP) signaling is observed early in the onset of skeletal muscle wasting associated with cancer cachexia in mouse models and in patients with cancer. Cancer-mediated factors including Activin A and IL-6 trigger the expression of the BMP inhibitor Noggin in muscle, which blocks the actions of BMPs on muscle fibers and motor nerves, subsequently causing disruption of the neuromuscular junction (NMJ), denervation, and muscle wasting. Increasing BMP signaling in the muscles of tumor-bearing mice by gene delivery or pharmacological means can prevent muscle wasting and preserve measures of NMJ function. The data identify perturbed BMP signaling and denervation of muscle fibers as important pathogenic mechanisms of muscle wasting associated with tumor growth. Collectively, these findings present interventions that promote BMP-mediated signaling as an attractive strategy to counteract the loss of functional musculature in patients with cancer.
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Affiliation(s)
- Roberta Sartori
- Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Adam Hagg
- Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
- Biomedicine Discovery Institute, Department of Physiology, Monash University, Melbourne, VIC 3800, Australia
| | - Sandra Zampieri
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
- Myology Center, University of Padova, 35122 Padua, Italy
| | - Andrea Armani
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | | | - Laís R Viana
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
- Department of Structural and Functional Biology, Biology Institute, University of Campinas, Campinas, São Paulo 13083-97, Brazil
| | - Mouna Haidar
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052, Australia
| | - Kevin I Watt
- Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Hongwei Qian
- Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Camilla Pezzini
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Pardis Zanganeh
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052, Australia
| | - Bradley J Turner
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052, Australia
| | - Anna Larsson
- Theme Cancer, Karolinska University Hospital, Solna 171 76, Sweden
| | - Gianpietro Zanchettin
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
| | - Elisa S Pierobon
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
| | - Lucia Moletta
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
| | - Michele Valmasoni
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
| | - Alberto Ponzoni
- Department of Radiology, Padova General Hospital, 35121 Padova, Italy
| | - Shady Attar
- Department of Medicine, University Hospital of Padova, 35121 Padova, Italy
| | - Gianfranco Da Dalt
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
| | - Cosimo Sperti
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
| | - Monika Kustermann
- Center for Anatomy and Cell Biology, Medical University of Vienna, 1090 Vienna, Austria
| | - Rachel E Thomson
- Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Lars Larsson
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Biobehavioral Health, The Pennsylvania State University, University Park, PA 16802, USA
| | - Kate L Loveland
- Centre for Reproductive Health. Hudson Institute of Medical Research, Clayton, VIC 3168, Australia
- Department of Molecular and Translational Sciences, and Anatomy and Developmental Biology, Monash University, VIC 3800, Australia
| | - Paola Costelli
- Department of Clinical and Biological Sciences, University of Turin, 10125 Turin, Italy
| | - Aram Megighian
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Stefano Merigliano
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padova, 35128 Padua, Italy
| | - Fabio Penna
- Department of Clinical and Biological Sciences, University of Turin, 10125 Turin, Italy
| | - Paul Gregorevic
- Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia.
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, VIC 3010, Australia
- Department of Biochemistry and Molecular Biology, Monash University, VIC 3800, Australia
- Department of Neurology, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Marco Sandri
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy.
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
- Myology Center, University of Padova, 35122 Padua, Italy
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada
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21
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C2C12 myoblasts are more sensitive to the toxic effects of simvastatin than myotubes and show impaired proliferation and myotube formation. Biochem Pharmacol 2021; 190:114649. [PMID: 34111424 DOI: 10.1016/j.bcp.2021.114649] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 11/23/2022]
Abstract
Statins reduce cardiovascular complications in patients with high LDL-cholesterol but are associated with myopathy. We compared the toxicity of simvastatin of C2C12 myoblasts and myotubes. Since myoblasts can proliferate and fuse to myotubes, myoblasts can be considered as satellite cells and myotubes as mature muscle fibers. Simvastatin increased plasma membrane permeability and decreased the cellular ATP content in both myoblasts and myotubes, but with a stronger effect on myoblasts. While insulin prevented cytotoxicity up to 8 h after addition of simvastatin to myotubes, prevention in myoblasts required simultaneous addition. Mevalonate and geranylgeraniol prevented simvastatin-associated cytotoxicity in both myoblasts and myotubes. Simvastatin impaired the phosphorylation of the insulin receptor (IR β), Akt ser473 and S6rp, and increased phosphorylation of AMPK thr172 in both myotubes and myoblasts, which was prevented by insulin and mevalonate. Simvastatin impaired oxygen consumption and increased superoxide production by myoblasts and myotubes and induced apoptosis via cytochrome c release. In addition, simvastatin impaired proliferation and fusion of myoblasts to myotubes by inhibiting the expression of the nuclear transcription factor MyoD and of the metalloprotease ADAM-12. Decreased expression of the proliferation factor Ki-67 and of ADAM-12 were also observed in gastrocnemius of mice treated with simvastatin. In conclusion, myoblasts were more susceptible to the toxic effects of simvastatin and simvastatin impaired myoblast proliferation and myotube formation. Impaired muscle regeneration may represent a new mechanism of statin myotoxicity.
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22
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Effects of Simvastatin on Lipid Metabolism in Wild-Type Mice and Mice with Muscle PGC-1α Overexpression. Int J Mol Sci 2021; 22:ijms22094950. [PMID: 34066911 PMCID: PMC8125015 DOI: 10.3390/ijms22094950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/29/2021] [Accepted: 05/01/2021] [Indexed: 12/05/2022] Open
Abstract
Previous studies suggest that statins may disturb skeletal muscle lipid metabolism potentially causing lipotoxicity with insulin resistance. We investigated this possibility in wild-type mice (WT) and mice with skeletal muscle PGC-1α overexpression (PGC-1α OE mice). In WT mice, simvastatin had only minor effects on skeletal muscle lipid metabolism but reduced glucose uptake, indicating impaired insulin sensitivity. Muscle PGC-1α overexpression caused lipid droplet accumulation in skeletal muscle with increased expression of the fatty acid transporter CD36, fatty acid binding protein 4, perilipin 5 and CPT1b but without significant impairment of muscle glucose uptake. Simvastatin further increased the lipid droplet accumulation in PGC-1α OE mice and stimulated muscle glucose uptake. In conclusion, the impaired muscle glucose uptake in WT mice treated with simvastatin cannot be explained by lipotoxicity. PGC-1α OE mice are protected from lipotoxicity of fatty acids and triglycerides by increased the expression of FABP4, formation of lipid droplets and increased expression of CPT1b.
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23
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Haxhi J, Thompson PD. Rationale for the use of metformin and exercise to counteract statin-associated side effects. Int J Clin Pract 2021; 75:e13900. [PMID: 33277775 DOI: 10.1111/ijcp.13900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 12/01/2020] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Statins are the most widely prescribed drugs for lowering low-density lipoprotein cholesterol (LDL-C) and reducing cardiovascular morbidity and mortality. They are usually well-tolerated, but have two main safety concerns: statin-associated muscle symptoms (SAMS) and new-onset type 2 diabetes (NOD). METHODS A PubMed search was carried out using the following key words were used: statins, statin-associated muscle symptoms, statin myalgia, statin-associated diabetes, metformin and statins, exercise and statins. RESULTS Mitochondrial damage and muscle atrophy are likely the central mechanisms producing SAMS, whereas decreased glucose transport, fatty acid oxidation and insulin secretion are likely involved in the development of NOD. Metformin and exercise training share many pathways that could potentially contrast SAMS and NOD. Clinical evidence also supports the combination of statins with metformin and exercise. CONCLUSION This combination appears attractive both from a clinical and an economical viewpoint, since all three therapies are highly cost-effective and their combination could result in diabetes and cardiovascular disease prevention.
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Affiliation(s)
- Jonida Haxhi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
- Division of Cardiology, Hartford Hospital, Hartford, CT, USA
| | - Paul D Thompson
- Division of Cardiology, Hartford Hospital, Hartford, CT, USA
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24
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Fu CN, Song JW, Song ZP, Wang QW, Bai WW, Guo T, Li P, Liu C, Wang SX, Dong B. Excessive expression of miR-1a by statin causes skeletal injury through targeting mitogen-activated protein kinase kinase kinase 1. Aging (Albany NY) 2021; 13:11470-11490. [PMID: 33864447 PMCID: PMC8109097 DOI: 10.18632/aging.202839] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/16/2021] [Indexed: 12/17/2022]
Abstract
Backgrounds: A major side effect of statin, a widely used drug to treat hyperlipidemia, is skeletal myopathy through cell apoptosis. The aim of this study is to investigate the roles of microRNA in statin-induced injury. Methods: Apolipoprotein E knockout (ApoE-/-) mice were administered with simvastatin (20 mg/kg/day) for 8 weeks. Exercise capacity was evaluated by hanging grid test, forelimb grip strength, and running tolerance test. Results: In cultured skeletal muscle cells, statin increased the levels of miR-1a but decreased the levels of mitogen-activated protein kinase kinase kinase 1 (MAP3K1) in a time or dose dependent manner. Both computational target-scan analysis and luciferase gene reporter assay indicated that MAP3K1 is the target gene of miR-1a. Statin induced cell apoptosis of skeletal muscle cells, but abolished by downregulating of miR-1a or upregulation of MAP3K1. Further, the effects of miR-1a inhibition on statin-induced cell apoptosis were ablated by MAP3K1 siRNA. In ApoE-/- mice, statin induced cell apoptosis of skeletal muscle cells and decreased exercise capacity in mice infected with vector, but not in mice with lentivirus-mediated miR-1a gene silence. Conclusion: Statin causes skeletal injury through induction of miR-1a excessive expression to decrease MAP3K1 gene expression.
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Affiliation(s)
- Chang-Ning Fu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Cardiology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Jia-Wen Song
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhi-Peng Song
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qian-Wen Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wen-Wu Bai
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tao Guo
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Peng Li
- Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, School of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Chao Liu
- Hubei Key Laboratory of Diabetes and Angiopathy, Hubei University of Science and Technology, Xianning, China
| | - Shuang-Xi Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, School of Pharmacy, Xinxiang Medical University, Xinxiang, China.,Hubei Key Laboratory of Diabetes and Angiopathy, Hubei University of Science and Technology, Xianning, China
| | - Bo Dong
- Department of Cardiology, Shandong Provincial Hospital, Shandong University, Jinan, China
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25
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Mollazadeh H, Tavana E, Fanni G, Bo S, Banach M, Pirro M, von Haehling S, Jamialahmadi T, Sahebkar A. Effects of statins on mitochondrial pathways. J Cachexia Sarcopenia Muscle 2021; 12:237-251. [PMID: 33511728 PMCID: PMC8061391 DOI: 10.1002/jcsm.12654] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/09/2020] [Accepted: 10/20/2020] [Indexed: 12/12/2022] Open
Abstract
Statins are a family of drugs that are used for treating hyperlipidaemia with a recognized capacity to prevent cardiovascular disease events. They inhibit β-hydroxy β-methylglutaryl-coenzyme A reductase, i.e. the rate-limiting enzyme in mevalonate pathway, reduce endogenous cholesterol synthesis, and increase low-density lipoprotein clearance by promoting low-density lipoprotein receptor expression mainly in the hepatocytes. Statins have pleiotropic effects including stabilization of atherosclerotic plaques, immunomodulation, anti-inflammatory properties, improvement of endothelial function, antioxidant, and anti-thrombotic action. Despite all beneficial effects, statins may elicit adverse reactions such as myopathy. Studies have shown that mitochondria play an important role in statin-induced myopathies. In this review, we aim to report the mechanisms of action of statins on mitochondrial function. Results have shown that statins have several effects on mitochondria including reduction of coenzyme Q10 level, inhibition of respiratory chain complexes, induction of mitochondrial apoptosis, dysregulation of Ca2+ metabolism, and carnitine palmitoyltransferase-2 expression. The use of statins has been associated with the onset of additional pathological conditions like diabetes and dementia as a result of interference with mitochondrial pathways by various mechanisms, such as reduction in mitochondrial oxidative phosphorylation, increase in oxidative stress, decrease in uncoupling protein 3 concentration, and interference in amyloid-β metabolism. Overall, data reported in this review suggest that statins may have major effects on mitochondrial function, and some of their adverse effects might be mediated through mitochondrial pathways.
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Affiliation(s)
- Hamid Mollazadeh
- Department of Physiology and Pharmacology, Faculty of MedicineNorth Khorasan University of Medical SciencesBojnurdIran
- Natural Products and Medicinal Plants Research CenterNorth Khorasan University of Medical SciencesBojnurdIran
| | - Erfan Tavana
- Student Research Committee, School of MedicineNorth Khorasan University of Medical SciencesBojnurdIran
| | - Giovanni Fanni
- Department of Medical SciencesUniversity of TurinTurinItaly
| | - Simona Bo
- Department of Medical Sciences, AOU Città della Salute e della Scienza di TorinoUniversity of TurinTurinItaly
| | - Maciej Banach
- Department of HypertensionWAM University Hospital in LodzMedical University of Lodz, LodzPoland
- Polish Mother's Memorial Hospital Research Institute (PMMHRI), LodzPoland
| | - Matteo Pirro
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of MedicineUniversity of PerugiaPerugiaItaly
| | - Stephan von Haehling
- Department of Cardiology and PneumologyUniversity Medical Center GöttingenGöttingenGermany
- German Center for Cardiovascular Research (DZHK), partner site GöttingenGöttingenGermany
| | - Tannaz Jamialahmadi
- Department of Food Science and TechnologyIslamic Azad UniversityQuchanQuchanIran
- Department of Nutrition, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology InstituteMashhad University of Medical SciencesMashhadIran
- Neurogenic Inflammation Research CenterMashhad University of Medical SciencesMashhadIran
- Halal Research Center of IRIFDATehranIran
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26
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Zhang ZY, Ren J, Chu F, Guan JX, Yang GY, Liu YT, Zhang XY, Ge SQ, Huang QY. Biochemical, molecular, and morphological variations of flight muscles before and after dispersal flight in a eusocial termite, Reticulitermes chinensis. INSECT SCIENCE 2021; 28:77-92. [PMID: 32039551 DOI: 10.1111/1744-7917.12763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 01/28/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
Swarming behavior facilitates pair formation, and therefore mating, in many eusocial termites. However, the physiological adjustments and morphological transformations of the flight muscles involved in flying and flightless insect forms are still unclear. Here, we found that the dispersal flight of the eusocial termite Reticulitermes chinensis Snyder led to a gradual decrease in adenosine triphosphate supply from oxidative phosphorylation, as well as a reduction in the activities of critical mitochondrial respiratory enzymes from preflight to dealation. Correspondingly, using three-dimensional reconstruction and transmission electron microscopy (TEM), the flight muscles were found to be gradually deteriorated during this process. In particular, two tergo-pleural muscles (IItpm5 and III-tpm5) necessary to adjust the rotation of wings for wing shedding behavior were present only in flying alates. These findings suggest that flight muscle systems vary in function and morphology to facilitate the swarming flight procedure, which sheds light on the important role of swarming in successful extension and fecundity of eusocial termites.
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Affiliation(s)
- Zhen-Yu Zhang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jing Ren
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Fei Chu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jun-Xia Guan
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Guang-Yu Yang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yu-Tong Liu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xin-Ying Zhang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Si-Qin Ge
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Qiu-Ying Huang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
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27
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Brand MD. Riding the tiger - physiological and pathological effects of superoxide and hydrogen peroxide generated in the mitochondrial matrix. Crit Rev Biochem Mol Biol 2020; 55:592-661. [PMID: 33148057 DOI: 10.1080/10409238.2020.1828258] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Elevated mitochondrial matrix superoxide and/or hydrogen peroxide concentrations drive a wide range of physiological responses and pathologies. Concentrations of superoxide and hydrogen peroxide in the mitochondrial matrix are set mainly by rates of production, the activities of superoxide dismutase-2 (SOD2) and peroxiredoxin-3 (PRDX3), and by diffusion of hydrogen peroxide to the cytosol. These considerations can be used to generate criteria for assessing whether changes in matrix superoxide or hydrogen peroxide are both necessary and sufficient to drive redox signaling and pathology: is a phenotype affected by suppressing superoxide and hydrogen peroxide production; by manipulating the levels of SOD2, PRDX3 or mitochondria-targeted catalase; and by adding mitochondria-targeted SOD/catalase mimetics or mitochondria-targeted antioxidants? Is the pathology associated with variants in SOD2 and PRDX3 genes? Filtering the large literature on mitochondrial redox signaling using these criteria highlights considerable evidence that mitochondrial superoxide and hydrogen peroxide drive physiological responses involved in cellular stress management, including apoptosis, autophagy, propagation of endoplasmic reticulum stress, cellular senescence, HIF1α signaling, and immune responses. They also affect cell proliferation, migration, differentiation, and the cell cycle. Filtering the huge literature on pathologies highlights strong experimental evidence that 30-40 pathologies may be driven by mitochondrial matrix superoxide or hydrogen peroxide. These can be grouped into overlapping and interacting categories: metabolic, cardiovascular, inflammatory, and neurological diseases; cancer; ischemia/reperfusion injury; aging and its diseases; external insults, and genetic diseases. Understanding the involvement of mitochondrial matrix superoxide and hydrogen peroxide concentrations in these diseases can facilitate the rational development of appropriate therapies.
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28
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Simvastatin Impairs Glucose Homeostasis in Mice Depending on PGC-1α Skeletal Muscle Expression. Biomedicines 2020; 8:biomedicines8090351. [PMID: 32942550 PMCID: PMC7555587 DOI: 10.3390/biomedicines8090351] [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] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/05/2020] [Accepted: 09/11/2020] [Indexed: 01/11/2023] Open
Abstract
Several studies showed an increased risk for diabetes with statin treatment. PGC-1α is an important regulator of muscle energy metabolism and mitochondrial biogenesis. Since statins impair skeletal muscle PGC-1α expression and reduced PGC-1α expression has been observed in diabetic patients, we investigated the possibility that skeletal muscle PGC1α expression influences the effect of simvastatin on muscle glucose metabolism. Mice with muscle PGC-1α knockout (KO) or PGC-1α overexpression (OE), and wild-type (WT) mice were investigated. Mice were treated orally for 3 weeks with simvastatin (5 mg/kg/day) and investigated by intraperitoneal glucose tolerance (iGTT), in vivo skeletal muscle glucose uptake, muscle glycogen content, and Glut4 and hexokinase mRNA and protein expression. Simvastatin impaired glucose metabolism in WT mice, as manifested by increased glucose blood concentrations during the iGTT, decreased skeletal muscle glucose uptake and glycogen stores. KO mice showed impaired glucose homeostasis with increased blood glucose concentrations during the iGTT already without simvastatin treatment and simvastatin induced a decrease in skeletal muscle glucose uptake. In OE mice, simvastatin treatment increased blood glucose and insulin concentrations during the iGTT, and increased skeletal muscle glucose uptake, glycogen stores, and Glut4 and hexokinase protein expression. In conclusion, simvastatin impaired skeletal muscle insulin sensitivity in WT mice, while KO mice exhibited impaired skeletal muscle insulin sensitivity already in the absence of simvastatin. In OE mice, simvastatin augmented muscular glucose uptake but impaired whole-body insulin sensitivity. Thus, simvastatin affected glucose homeostasis depending on PGC-1α expression.
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29
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Bellezza I, Riuzzi F, Chiappalupi S, Arcuri C, Giambanco I, Sorci G, Donato R. Reductive stress in striated muscle cells. Cell Mol Life Sci 2020; 77:3547-3565. [PMID: 32072237 PMCID: PMC11105111 DOI: 10.1007/s00018-020-03476-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/17/2020] [Accepted: 02/03/2020] [Indexed: 12/11/2022]
Abstract
Reductive stress is defined as a condition of sustained increase in cellular glutathione/glutathione disulfide and NADH/NAD+ ratios. Reductive stress is emerging as an important pathophysiological event in several diseased states, being as detrimental as is oxidative stress. Occurrence of reductive stress has been documented in several cardiomyopathies and is an important pathophysiological factor particularly in coronary artery disease and myocardial infarction. Excess activation of the transcription factor, Nrf2-the master regulator of the antioxidant response-, consequent in most cases to defective autophagy, can lead to reductive stress. In addition, hyperglycemia-induced activation of the polyol pathway can lead to increased NADH/NAD+ ratio, which might translate into increased levels of hydrogen sulfide-via enhanced activity of cystathionine β-synthase-that would fuel reductive stress through inhibition of mitochondrial complex I. Reductive stress may be either a potential weapon against cancer priming tumor cells to apoptosis or a cancer's ally promoting tumor cell proliferation and making tumor cells resistant to reactive oxygen species-inducing drugs. In non-cancer pathological states reductive stress is definitely harmful paradoxically leading to reactive oxygen species overproduction via excess NADPH oxidase 4 activity. In face of the documented occurrence of reductive stress in several heart diseases, there is much less information about the occurrence and effects of reductive stress in skeletal muscle tissue. In the present review we describe relevant results emerged from studies of reductive stress in the heart and review skeletal muscle conditions in which reductive stress has been experimentally documented and those in which reductive stress might have an as yet unrecognized pathophysiological role. Establishing whether reductive stress has a (patho)physiological role in skeletal muscle will hopefully contribute to answer the question whether antioxidant supplementation to the general population, athletes, and a large cohort of patients (e.g. heart, sarcopenic, dystrophic, myopathic, cancer, and bronco-pulmonary patients) is harmless or detrimental.
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Affiliation(s)
- Ilaria Bellezza
- Department of Experimental Medicine, Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
| | - Francesca Riuzzi
- Department of Experimental Medicine, Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
- Interuniversity Institute of Myology (IIM), University of Perugia, 06132, Perugia, Italy
| | - Sara Chiappalupi
- Department of Experimental Medicine, Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
- Interuniversity Institute of Myology (IIM), University of Perugia, 06132, Perugia, Italy
| | - Cataldo Arcuri
- Department of Experimental Medicine, Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
| | - Ileana Giambanco
- Department of Experimental Medicine, Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
| | - Guglielmo Sorci
- Department of Experimental Medicine, Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
- Interuniversity Institute of Myology (IIM), University of Perugia, 06132, Perugia, Italy
- Centro Universitario Di Ricerca Sulla Genomica Funzionale, University of Perugia, 06132, Perugia, Italy
| | - Rosario Donato
- Department of Experimental Medicine, Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy.
- Interuniversity Institute of Myology (IIM), University of Perugia, 06132, Perugia, Italy.
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Bouitbir J, Panajatovic MV, Frechard T, Roos NJ, Krähenbühl S. Imatinib and Dasatinib Provoke Mitochondrial Dysfunction Leading to Oxidative Stress in C2C12 Myotubes and Human RD Cells. Front Pharmacol 2020; 11:1106. [PMID: 32792947 PMCID: PMC7390871 DOI: 10.3389/fphar.2020.01106] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 07/07/2020] [Indexed: 12/14/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) can cause skeletal muscle toxicity in patients, but the underlying mechanisms are mostly unclear. The goal of the current study was to better characterize the role of mitochondria in TKI-associated myotoxicity. We exposed C2C12 murine myoblasts and myotubes as well as human rhabdomyosarcoma cells (RD cells) for 24 h to imatinib (1–100 µM), erlotinib (1–20 µM), and dasatinib (0.001–100 µM). In C2C12 myoblasts, imatinib was membrane toxic at 50 µM and depleted the cellular ATP pool at 20 µM. In C2C12 myotubes exposed to imatinib, ATP depletion started at 50 µM whereas membrane toxicity was not detectable. In myoblasts and myotubes exposed to dasatinib, membrane toxicity started at 0.5 µM and 2 µM, respectively, and the ATP drop was visible at 0.1 µM and 0.2 µM, respectively. When RD cells were exposed to imatinib, ATP depletion started at 20 µM whereas membrane toxicity was not detectable. Dasatinib was membrane toxic at 20 µM and depleted the cellular ATP pool already at 0.5 µM. Erlotinib was not toxic in both cell models. Imatinib (20 µM) and dasatinib (1 µM) reduced complex I activity in both cell models. Moreover, the mitochondrial membrane potential (Δψm) was dissipated for both TKIs in myotubes. In RD cells, the Δψm was reduced only by dasatinib. Both TKIs increased mitochondrial superoxide accumulation and decreased the mitochondrial copy number in both cell lines. In consequence, they increased protein expression of superoxide dismutase (SOD) 2 and thioredoxin 2 and cleavage of caspase 3, indicating apoptosis in C2C12 myotubes. Moreover, in both cell models, the mRNA expression of Sod1 and Sod2 increased when RD cells were exposed to dasatinib. Furthermore, dasatinib increased the mRNA expression of atrogin-1 and murf-1, which are important transcription factors involved in muscle atrophy. The mRNA expression of atrogin-1 increased also in RD cells exposed to imatinib. In conclusion, imatinib and dasatinib are mitochondrial toxicants in mouse C2C12 myotubes and human RD cells. Mitochondrial superoxide accumulation induced by these two TKIs is due to the inhibition of complex I and is probably related to impaired mitochondrial and myocyte proliferation.
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Affiliation(s)
- Jamal Bouitbir
- Division of Clinical Pharmacology & Toxicology, University Hospital of Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland.,Swiss Centre for Applied Human Toxicology (SCAHT), University of Basel, Basel, Switzerland
| | - Miljenko Valentin Panajatovic
- Division of Clinical Pharmacology & Toxicology, University Hospital of Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Theo Frechard
- Division of Clinical Pharmacology & Toxicology, University Hospital of Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Noëmi Johanna Roos
- Division of Clinical Pharmacology & Toxicology, University Hospital of Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology, University Hospital of Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland.,Swiss Centre for Applied Human Toxicology (SCAHT), University of Basel, Basel, Switzerland
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Seo DY, Heo JW, No MH, Yoo SZ, Ko JR, Park DH, Kang JH, Kim CJ, Jung SJ, Han J, Kwak HB. Exercise Training Protects against Atorvastatin-Induced Skeletal Muscle Dysfunction and Mitochondrial Dysfunction in the Skeletal Muscle of Rats. J Clin Med 2020; 9:E2292. [PMID: 32707695 PMCID: PMC7408828 DOI: 10.3390/jcm9072292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/30/2020] [Accepted: 07/16/2020] [Indexed: 12/17/2022] Open
Abstract
Statins are used to prevent and treat atherosclerotic cardiovascular disease, but they also induce myopathy and mitochondrial dysfunction. Here, we investigated whether exercise training prevents glucose intolerance, muscle impairment, and mitochondrial dysfunction in the skeletal muscles of Wistar rats treated with atorvastatin (5 mg kg-1 day-1) for 12 weeks. The rats were assigned to the following three groups: the control (CON), atorvastatin-treated (ATO), and ATO plus aerobic exercise training groups (ATO+EXE). The ATO+EXE group exhibited higher glucose tolerance and forelimb strength and lower creatine kinase levels than the other groups. Mitochondrial respiratory and Ca2+ retention capacity was significantly lower in the ATO group than in the other groups, but exercise training protected against atorvastatin-induced impairment in both the soleus and white gastrocnemius muscles. The mitochondrial H2O2 emission rate was relatively higher in the ATO group and lower in the ATO+EXE group, in both the soleus and white gastrocnemius muscles, than in the CON group. In the soleus muscle, the Bcl-2, SOD1, SOD2, Akt, and AMPK phosphorylation levels were significantly higher in the ATO+EXE group than in the ATO group. In the white gastrocnemius muscle, the SOD2, Akt, and AMPK phosphorylation levels were significantly higher in the ATO+EXE group than in the ATO group. Therefore, exercise training might regulate atorvastatin-induced muscle damage, muscle fatigue, and mitochondrial dysfunction in the skeletal muscles.
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Affiliation(s)
- Dae Yun Seo
- Department of Physiology, National Research Laboratory for Mitochondrial Signaling, BK21 Plus Project Team, College of Medicine, Smart Marine Therapeutics Center, Cardiovascular and Metabolic Disease Center, Inje University, Busan 47392, Korea; (D.Y.S.); (J.R.K.)
| | - Jun-Won Heo
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (J.-W.H.); (M.-H.N.); (S.-Z.Y.); (D.-H.P.)
| | - Mi-Hyun No
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (J.-W.H.); (M.-H.N.); (S.-Z.Y.); (D.-H.P.)
| | - Su-Zi Yoo
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (J.-W.H.); (M.-H.N.); (S.-Z.Y.); (D.-H.P.)
| | - Jeong Rim Ko
- Department of Physiology, National Research Laboratory for Mitochondrial Signaling, BK21 Plus Project Team, College of Medicine, Smart Marine Therapeutics Center, Cardiovascular and Metabolic Disease Center, Inje University, Busan 47392, Korea; (D.Y.S.); (J.R.K.)
| | - Dong-Ho Park
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (J.-W.H.); (M.-H.N.); (S.-Z.Y.); (D.-H.P.)
| | - Ju-Hee Kang
- Department of Pharmacology and Medicinal Toxicology Research Center, Inha University School of Medicine, Incheon 22212, Korea;
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Su-Jeen Jung
- Department of Leisure Sports, Seoil University, Seoul 02192, Korea;
| | - Jin Han
- Department of Physiology, National Research Laboratory for Mitochondrial Signaling, BK21 Plus Project Team, College of Medicine, Smart Marine Therapeutics Center, Cardiovascular and Metabolic Disease Center, Inje University, Busan 47392, Korea; (D.Y.S.); (J.R.K.)
| | - Hyo-Bum Kwak
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (J.-W.H.); (M.-H.N.); (S.-Z.Y.); (D.-H.P.)
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Ren L, Xuan L, Han F, Zhang J, Gong L, Lv Y, Zhang W, Yang S, Xu B, Yan Y, Guo L, Liu H, Wan Z, Liu L. Vitamin D supplementation rescues simvastatin induced myopathy in mice via improving mitochondrial cristae shape. Toxicol Appl Pharmacol 2020; 401:115076. [PMID: 32479918 DOI: 10.1016/j.taap.2020.115076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 05/14/2020] [Accepted: 05/26/2020] [Indexed: 01/06/2023]
Abstract
Statin induced myopathy (SIM) is a main deleterious effect leading to the poor treatment compliance, while the preventive or therapeutic treatments are absent. Mounting evidences demonstrated that vitamin D plays a vital role in muscle as a direct modulator. The deficiency of vitamin D was considered as a cause of muscle dysfunction, whereas the supplementation resulted in a remission. However, there is no causal proof that vitamin D supplementation rescues SIM. Here, using the mice model of simvastatin-induced myopathy, we investigated the role of vitamin D supplementation and the mechanisms associated with mitochondria. Results indicated that simvastatin administration (80 mg/kg) impaired skeletal muscle with the increased serum creatine kinase (CK) level and the declined grip strength, which were alleviated by vitamin D supplementation. Moreover, vitamin D supplementation rescued the energy metabolism dysfunction in simvastatin-treated mice gastrocnemius by reducing the abnormal aggregation of muscular glycogen and lactic acid. Mitochondrial homeostasis plays a key role in the process of energy metabolism. Thus, the mitochondrial dysfunction is a mortal damage for the highly energy-requiring tissue. In our study, the mitochondrial cristae observed under transmission electron microscope (TEM) were lytic in simvastatin-treated gastrocnemius. Interestingly, vitamin D supplementation improved the mitochondrial cristae shape by regulating the expression of mitofusin-1/2 (MFN1/2), optic atrophy 1 (OPA1) and dynamin-related protein 1 (Drp1). As expected, the mitochondrial dysfunction and oxidative stress was mitigated by vitamin D supplementation. In conclusion, these findings suggested that moderate vitamin D supplementation rescued simvastatin induced myopathy via improving the mitochondrial cristae shape and function.
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Affiliation(s)
- Lulu Ren
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Lingling Xuan
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Feifei Han
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Jie Zhang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Lili Gong
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Yali Lv
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Wen Zhang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Song Yang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Benshan Xu
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Yan Yan
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Lifang Guo
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China; School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - He Liu
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Zirui Wan
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
| | - Lihong Liu
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
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The impact of statins on physical activity and exercise capacity: an overview of the evidence, mechanisms, and recommendations. Eur J Appl Physiol 2020; 120:1205-1225. [PMID: 32248287 DOI: 10.1007/s00421-020-04360-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 03/24/2020] [Indexed: 12/16/2022]
Abstract
PURPOSE Statins are among the most widely prescribed medications worldwide. Considered the 'gold-standard' treatment for cardiovascular disease (CVD), statins inhibit HMG-CoA reductase to ultimately reduce serum LDL-cholesterol levels. Unfortunately, the main adverse event of statin use is the development of muscle-associated problems, referred to as SAMS (statin-associated muscle symptoms). While regular moderate physical activity also decreases CVD risk, there is apprehension that physical activity may induce and/or exacerbate SAMS. While much work has gone into identifying the epidemiology of SAMS, only recent research has focused on the extent to which these muscle symptoms are accompanied by functional declines. The purpose of this review is to provide an overview of possible mechanisms underlying SAMS and summarize current evidence regarding the relationship between statin treatment, physical activity, exercise capacity, and SAMS development. METHODS PubMed and Google Scholar databases were used to search the most relevant and up-to-date peer-reviewed research on the topic. RESULTS The mechanism(s) behind SAMS, including altered mitochondrial metabolism, reduced coenzyme Q10 levels, reduced vitamin D levels, impaired calcium homeostasis, elevated extracellular glutamate, and genetic polymorphisms, still lack consensus and remain up for debate. Our summation of the evidence leads us to suggest that the etiology of SAMS development is likely multifactorial. Our review also demonstrates that there is limited evidence for statins impairing exercise adaptations or reducing exercise capacity for the majority of the investigated populations. CONCLUSION The available evidence indicates that the benefits of engaging in physical activity while on statin medication largely outweigh the risks.
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Oliveira PWC, Couto MR, de Sousa GJ, Peixoto P, Moraes FSA, de Andrade TU, Bissoli NS. Effects of Drugs, Phytoestrogens, Nutrients and Probiotics on Endothelial Dysfunction in the Estrogen-Deficient State. Curr Pharm Des 2020; 26:3711-3722. [PMID: 32228420 DOI: 10.2174/1381612826666200331084338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/22/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Endothelial dysfunction is commonly present in estrogen-deficient states, e.g., after menopause. In the search for alternatives to hormone replacement therapy (HRT), treatments based on phytoestrogens or in non-hormonal mechanisms have been under evaluation. OBJECTIVE Here we aim to present an overview of innovative potential treatments for endothelial dysfunction in estrogen-deficient states, introducing our own preliminary data about the probiotic kefir. METHODS We conducted a review based on a PubMed database search for keywords of interest (Menopause, Ovariectomy, Vascular dysfunction, Hot flashes, Metformin, Statins, Phytoestrogens, Omega-3, Vitamin D, Probiotics). RESULTS Vascular parameters were found to be improved by both metformin and statins through pleiotropic effects, being related to a decrease in oxidative stress and restoration of the nitric oxide pathway. Phytoestrogens such as genistein and resveratrol have also been shown to improve vascular dysfunction, which seems to involve their estrogenic-like actions. Omega-3, vitamin D and its analogues, as well as probiotics, have shown similar vascular beneficial effects in both postmenopausal women and an animal model of ovariectomy (OVX), which could be related to antioxidant and/or anti-inflammatory effects. Moreover, our preliminary data on the probiotic kefir treatment in OVX rats suggested a vascular antioxidant effect. In particular, some evidence points to statins and vitamin D having anti-atherogenic effects. CONCLUSION Pleiotropic effects of common medications and natural compounds could have therapeutic potential for endothelial dysfunction in estrogen-deficient states. They could, therefore, work as future complementary or alternative treatments to HRT.
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Affiliation(s)
- Phablo Wendell C Oliveira
- Department of Physiological Sciences, Universidade Federal do Espirito Santo, Vitoria, Espirito Santo, Brazil
| | - Mariana R Couto
- Department of Physiological Sciences, Universidade Federal do Espirito Santo, Vitoria, Espirito Santo, Brazil
| | - Glauciene J de Sousa
- Department of Physiological Sciences, Universidade Federal do Espirito Santo, Vitoria, Espirito Santo, Brazil
| | - Pollyana Peixoto
- Department of Physiological Sciences, Universidade Federal do Espirito Santo, Vitoria, Espirito Santo, Brazil
| | - Flávia S A Moraes
- Department of Pharmacy, University Vila Velha, Vila Velha, ES, Brazil
| | | | - Nazaré S Bissoli
- Department of Physiological Sciences, Universidade Federal do Espirito Santo, Vitoria, Espirito Santo, Brazil
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Panajatovic MV, Singh F, Roos NJ, Duthaler U, Handschin C, Krähenbühl S, Bouitbir J. PGC-1α plays a pivotal role in simvastatin-induced exercise impairment in mice. Acta Physiol (Oxf) 2020; 228:e13402. [PMID: 31605661 DOI: 10.1111/apha.13402] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/29/2019] [Accepted: 10/02/2019] [Indexed: 12/12/2022]
Abstract
AIM Statins decrease cardiovascular complications, but can induce myopathy. Here, we explored the implication of PGC-1α in statin-associated myotoxicity. METHODS We treated PGC-1α knockout (KO), PGC-1α overexpression (OE) and wild-type (WT) mice orally with 5 mg simvastatin kg-1 day-1 for 3 weeks and assessed muscle function and metabolism. RESULTS In WT and KO mice, but not in OE mice, simvastatin decreased grip strength, maximal running distance and vertical power assessed by ergometry. Post-exercise plasma lactate concentrations were higher in WT and KO compared to OE mice. In glycolytic gastrocnemius, simvastatin decreased mitochondrial respiration, increased mitochondrial ROS production and free radical leak in WT and KO, but not in OE mice. Simvastatin increased mRNA expression of Sod1 and Sod2 in glycolytic and oxidative gastrocnemius of WT, but decreased it in KO mice. OE mice had a higher mitochondrial DNA content in both gastrocnemius than WT or KO mice and simvastatin exhibited a trend to decrease the citrate synthase activity in white and red gastrocnemius in all treatment groups. Simvastatin showed a trend to decrease the mitochondrial volume fraction in both muscle types of all treatment groups. Mitochondria were smaller in WT and KO compared to OE mice and simvastatin further reduced the mitochondrial size in WT and KO mice, but not in OE mice. CONCLUSIONS Simvastatin impairs skeletal muscle function, muscle oxidative metabolism and mitochondrial morphology preferentially in WT and KO mice, whereas OE mice appear to be protected, suggesting a role of PGC-1α in preventing simvastatin-associated myotoxicity.
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Affiliation(s)
- Miljenko Valentin Panajatovic
- Division of Clinical Pharmacology & Toxicology University Hospital Basel Switzerland
- Department of Biomedicine University of Basel Basel Switzerland
| | - François Singh
- Division of Clinical Pharmacology & Toxicology University Hospital Basel Switzerland
- Department of Biomedicine University of Basel Basel Switzerland
| | - Noëmi Johanna Roos
- Division of Clinical Pharmacology & Toxicology University Hospital Basel Switzerland
- Department of Biomedicine University of Basel Basel Switzerland
| | - Urs Duthaler
- Division of Clinical Pharmacology & Toxicology University Hospital Basel Switzerland
- Department of Biomedicine University of Basel Basel Switzerland
| | | | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology University Hospital Basel Switzerland
- Department of Biomedicine University of Basel Basel Switzerland
- Swiss Centre for Applied Human Toxicology (SCAHT) Basel Switzerland
| | - Jamal Bouitbir
- Division of Clinical Pharmacology & Toxicology University Hospital Basel Switzerland
- Department of Biomedicine University of Basel Basel Switzerland
- Swiss Centre for Applied Human Toxicology (SCAHT) Basel Switzerland
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Won KJ, Goh YJ, Hwang SH. Lysophosphatidic Acid Inhibits Simvastatin-Induced Myocytoxicity by Activating LPA Receptor/PKC Pathway. Molecules 2020; 25:molecules25071529. [PMID: 32230890 PMCID: PMC7180799 DOI: 10.3390/molecules25071529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/03/2020] [Accepted: 03/25/2020] [Indexed: 01/21/2023] Open
Abstract
Statins such as simvastatin have many side effects, including muscle damage, which is known to be the most frequent undesirable side effect. Lysophosphatidic acid (LPA), a kind of biolipid, has diverse cellular activities, including cell proliferation, survival, and migration. However, whether LPA affects statin-linked muscle damage has not been reported yet. In the present study, to determine whether LPA might exert potential protective effect on statin-induced myocyotoxicity, the effect of LPA on cytotoxicity in rat L6 myoblasts exposed to simvastatin was explored. Viability and apoptosis of rat L6 myoblasts were detected via 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-5- [(phenylamino)carbonyl]-2H-tetrazolium hydroxide (XTT) assay and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay, respectively. Protein expression levels were detected via Western blotting. Simvastatin decreased viability of L6 cells. Such decrease in viability was recovered in the presence of LPA. Treatment with LPA suppressed simvastatin-induced apoptosis in L6 cells. In addition, treatment with LPA receptor inhibitor Ki16425, protein kinase C (PKC) inhibitor GF109203X, or intracellular calcium chelator BAPTA-AM attenuated the recovery effect of LPA on simvastatin-induced L6 cell toxicity. These findings indicate that LPA may inhibit simvastatin-induced toxicity in L6 cells probably by activating the LPA receptor-PKC pathway. Therefore, LPA might have potential as a bioactive molecule to protect muscles against simvastatin-induced myotoxicity.
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Affiliation(s)
- Kyung-Jong Won
- Department of Physiology and Medical Science, School of Medicine, Konkuk University, Chungju 27478, Korea
| | - Yu-Jin Goh
- Department of Pharmaceutical Engineering, College of Health Sciences, Sangji University, Wonju 26339, Korea
| | - Sung-Hee Hwang
- Department of Pharmaceutical Engineering, College of Health Sciences, Sangji University, Wonju 26339, Korea
- Correspondence: ; Tel.: +82-33-738-7922
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Pergolizzi JV, Coluzzi F, Colucci RD, Olsson H, LeQuang JA, Al-Saadi J, Magnusson P. Statins and muscle pain. Expert Rev Clin Pharmacol 2020; 13:299-310. [PMID: 32089020 DOI: 10.1080/17512433.2020.1734451] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Introduction: Statins remain among the most frequently prescribed drugs and constitute a cornerstone in the prevention of cardiovascular disease. However, muscle symptoms are often reported from patients on statins. Muscle symptoms are frequently reported as adverse events associated with statin therapy.Areas covered: In the present narrative review, statin-associated muscle pain is discussed. It elucidates potential mechanisms and possible targets for management.Expert opinion: In general, the evidence in support of muscle pain caused by statins is in some cases equivocal and not particularly strong. Reported symptoms are difficult to quantify. Rarely is it possible to establish a causal link between statins and muscle pain. In randomized controlled trials, statins are well tolerated, and muscle-pain related side-effects is similar to placebo. There are also nocebo effects of statins. Exchange of statin may be beneficial although all statins have been associated with muscle pain. In some patients reduction of dose is worth trying, especially in primary prevention Although the benefits of statins outweigh potential risks in the vast majority of cases, careful clinical judgment may be necessary in certain cases to manage potential side effects on an individual basis.
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Affiliation(s)
| | - Flaminia Coluzzi
- Department of Medical and Surgical Sciences and Biotechnologies, Unit of Anaesthesia, Intensive Care and Pain Medicine, Sapienza University of Rome, Rome, Italy
| | - Robert D Colucci
- NEMA Research, Inc., Naples, FL, USA.,Colucci & Associates, LLC, Newtown, Connecticut, USA
| | - Hanna Olsson
- Centre for Research and Development, Region Gävleborg/Uppsala University, Gävle, Sweden
| | | | - Jonathan Al-Saadi
- Centre for Research and Development, Region Gävleborg/Uppsala University, Gävle, Sweden
| | - Peter Magnusson
- Centre for Research and Development, Region Gävleborg/Uppsala University, Gävle, Sweden.,Cardiology Research Unit, Institution of Medicine, Karolinska Institutet, Stockholm, Sweden
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Multiple acyl-COA dehydrogenase deficiency in elderly carriers. J Neurol 2020; 267:1414-1419. [DOI: 10.1007/s00415-020-09729-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 01/17/2020] [Accepted: 01/24/2020] [Indexed: 12/16/2022]
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Anoveros‐Barrera A, Bhullar AS, Stretch C, Esfandiari N, Dunichand‐Hoedl AR, Martins KJ, Bigam D, Khadaroo RG, McMullen T, Bathe OF, Damaraju S, Skipworth RJ, Putman CT, Baracos VE, Mazurak VC. Clinical and biological characterization of skeletal muscle tissue biopsies of surgical cancer patients. J Cachexia Sarcopenia Muscle 2019; 10:1356-1377. [PMID: 31307124 PMCID: PMC9536086 DOI: 10.1002/jcsm.12466] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/10/2019] [Accepted: 05/28/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Researchers increasingly use intraoperative muscle biopsy to investigate mechanisms of skeletal muscle atrophy in patients with cancer. Muscles have been assessed for morphological, cellular, and biochemical features. The aim of this study was to conduct a state-of-the-science review of this literature and, secondly, to evaluate clinical and biological variation in biopsies of rectus abdominis (RA) muscle from a cohort of patients with malignancies. METHODS Literature was searched for reports on muscle biopsies from patients with a cancer diagnosis. Quality of reports and risk of bias were assessed. Data abstracted included patient characteristics and diagnoses, sample size, tissue collection and biobanking procedures, and results. A cohort of cancer patients (n = 190, 88% gastrointestinal malignancies), who underwent open abdominal surgery as part of their clinical care, consented to RA biopsy from the site of incision. Computed tomography (CT) scans were used to quantify total abdominal muscle and RA cross-sectional areas and radiodensity. Biopsies were assessed for muscle fibre area (μm2 ), fibre types, myosin heavy chain isoforms, and expression of genes selected for their involvement in catabolic pathways of muscle. RESULTS Muscle biopsy occurred in 59 studies (total N = 1585 participants). RA was biopsied intraoperatively in 40 studies (67%), followed by quadriceps (26%; percutaneous biopsy) and other muscles (7%). Cancer site and stage, % of male participants, and age were highly variable between studies. Details regarding patient medical history and biopsy procedures were frequently absent. Lack of description of the population(s) sampled and low sample size contributed to low quality and risk of bias. Weight-losing cases were compared with weight stable cancer or healthy controls without considering a measure of muscle mass in 21 out of 44 studies. In the cohort of patients providing biopsy for this study, 78% of patients had preoperative CT scans and a high proportion (64%) met published criteria for sarcopenia. Fibre type distribution in RA was type I (46% ± 13), hybrid type I/IIA (1% ± 1), type IIA (36% ± 10), hybrid type IIA/D (15% ± 14), and type IID (2% ± 5). Sexual dimorphism was prominent in RA CT cross-sectional area, mean fibre cross-sectional area, and in expression of genes associated with muscle growth, apoptosis, and inflammation (P < 0.05). Medical history revealed multiple co-morbid conditions and medications. CONCLUSIONS Continued collaboration between researchers and cancer surgeons enables a more complete understanding of mechanisms of cancer-associated muscle atrophy. Standardization of biobanking practices, tissue manipulation, patient characterization, and classification will enhance the consistency, reliability, and comparability of future studies.
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Affiliation(s)
- Ana Anoveros‐Barrera
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental SciencesUniversity of AlbertaEdmontonABCanada
| | - Amritpal S. Bhullar
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental SciencesUniversity of AlbertaEdmontonABCanada
| | | | - Nina Esfandiari
- Department of Oncology, Faculty of Medicine and DentistryUniversity of AlbertaEdmontonABCanada
| | - Abha R. Dunichand‐Hoedl
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental SciencesUniversity of AlbertaEdmontonABCanada
| | - Karen J.B. Martins
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental SciencesUniversity of AlbertaEdmontonABCanada
| | - David Bigam
- Department of Surgery, Faculty of Medicine and DentistryUniversity of AlbertaEdmontonABCanada
| | - Rachel G. Khadaroo
- Department of Surgery, Faculty of Medicine and DentistryUniversity of AlbertaEdmontonABCanada
| | - Todd McMullen
- Department of Surgery, Faculty of Medicine and DentistryUniversity of AlbertaEdmontonABCanada
| | - Oliver F. Bathe
- Department of OncologyUniversity of CalgaryCalgaryABCanada
- Department of SurgeryUniversity of CalgaryCalgaryABCanada
| | - Sambasivarao Damaraju
- Department of Laboratory Medicine and PathologyUniversity of AlbertaEdmontonABCanada
- Department of Oncology, Faculty of Medicine and DentistryUniversity of AlbertaEdmontonABCanada
| | | | - Charles T. Putman
- Faculty of Kinesiology, Sport, and Recreation, Faculty of Medicine and DentistryUniversity of AlbertaEdmontonABCanada
| | - Vickie E. Baracos
- Department of Oncology, Faculty of Medicine and DentistryUniversity of AlbertaEdmontonABCanada
| | - Vera C. Mazurak
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental SciencesUniversity of AlbertaEdmontonABCanada
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Lyra-Leite DM, Andres AM, Cho N, Petersen AP, Ariyasinghe NR, Kim SS, Gottlieb RA, McCain ML. Matrix-guided control of mitochondrial function in cardiac myocytes. Acta Biomater 2019; 97:281-295. [PMID: 31401347 PMCID: PMC6801042 DOI: 10.1016/j.actbio.2019.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 02/08/2023]
Abstract
In ventricular myocardium, extracellular matrix (ECM) remodeling is a hallmark of physiological and pathological growth, coincident with metabolic rewiring of cardiac myocytes. However, the direct impact of the biochemical and mechanical properties of the ECM on the metabolic function of cardiac myocytes is mostly unknown. Furthermore, understanding the impact of distinct biomaterials on cardiac myocyte metabolism is critical for engineering physiologically-relevant models of healthy and diseased myocardium. For these reasons, we systematically measured morphological and metabolic responses of neonatal rat ventricular myocytes cultured on fibronectin- or gelatin-coated polydimethylsiloxane (PDMS) of three elastic moduli and gelatin hydrogels with four elastic moduli. On all substrates, total protein content, cell morphology, and the ratio of mitochondrial DNA to nuclear DNA were preserved. Cytotoxicity was low on all substrates, although slightly higher on PDMS compared to gelatin hydrogels. We also quantified oxygen consumption rates and extracellular acidification rates using a Seahorse extracellular flux analyzer. Our data indicate that several metrics associated with baseline glycolysis and baseline and maximum mitochondrial function are enhanced when cardiac myocytes are cultured on gelatin hydrogels compared to all PDMS substrates, irrespective of substrate rigidity. These results yield new insights into how mechanical and biochemical cues provided by the ECM impact mitochondrial function in cardiac myocytes. STATEMENT OF SIGNIFICANCE: Cardiac development and disease are associated with remodeling of the extracellular matrix coincident with metabolic rewiring of cardiac myocytes. However, little is known about the direct impact of the biochemical and mechanical properties of the extracellular matrix on the metabolic function of cardiac myocytes. In this study, oxygen consumption rates were measured in neonatal rat ventricular myocytes maintained on several commonly-used biomaterial substrates to reveal new relationships between the extracellular matrix and cardiac myocyte metabolism. Several mitochondrial parameters were enhanced on gelatin hydrogels compared to synthetic PDMS substrates. These data are important for comprehensively understanding matrix-regulation of cardiac myocyte physiology. Additionally, these data should be considered when selecting scaffolds for engineering in vitro cardiac tissue models.
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Affiliation(s)
- Davi M Lyra-Leite
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles CA, 90089, United States
| | - Allen M Andres
- Smidt Heart Institute and Barbra Streisand Women's Heart Center, Cedars-Sinai Medical Center, Los Angeles CA, 90048, United States
| | - Nathan Cho
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles CA, 90089, United States
| | - Andrew P Petersen
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles CA, 90089, United States
| | - Nethika R Ariyasinghe
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles CA, 90089, United States
| | - Suyon Sarah Kim
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles CA, 90089, United States
| | - Roberta A Gottlieb
- Smidt Heart Institute and Barbra Streisand Women's Heart Center, Cedars-Sinai Medical Center, Los Angeles CA, 90048, United States
| | - Megan L McCain
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles CA, 90089, United States; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles CA, 90033, United States.
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The comparative effects of high dose atorvastatin and proprotein convertase subtilisin/kexin type 9 inhibitor on the mitochondria of oxidative muscle fibers in obese-insulin resistant female rats. Toxicol Appl Pharmacol 2019; 382:114741. [PMID: 31473249 DOI: 10.1016/j.taap.2019.114741] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/06/2019] [Accepted: 08/28/2019] [Indexed: 12/23/2022]
Abstract
The present study aimed to compare the effects of high dose atorvastatin and a proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor on the mitochondrial function in oxidative muscle fibers in obese female rats. Female Wistar rats were fed with either a normal diet (ND: n = 12) or a high-fat diet (HFD: n = 36) for a total of 15 weeks. At week 13, ND-fed rats received a vehicle, and HFD-fed rats were divided to three groups to receive either a vehicle, 40 mg/kg/day of atorvastatin, or 4 mg/kg/day of PCSK9 inhibitor (SBC-115076) for 3 weeks. Soleus muscles were investigated to assess mitochondrial ROS, membrane potential, swelling, mitochondrial-related protein expression, and level of malondialdehyde (MDA). The results showed that HFD-fed rats with vehicle developed obese-insulin resistance and dyslipidemia. Both atorvastatin and PCSK9 inhibitor reduced obesity and dyslipidemia, as well as improved insulin sensitivity in HFD-fed rats. However, the efficacy of PCSK9 inhibitor to increase weight loss and reduce dyslipidemia in HFD-fed rats was greater than those of atorvastatin. An increase in MDA level, ratio of p-Drp1ser616/total Drp1 protein, CPT1 protein, mitochondrial ROS, and membrane depolarization in the soleus muscle were observed in HFD-fed rats with vehicle. PCSK9 inhibitor enabled the restoration of all these parameters to normal levels. However, atorvastatin facilitated restoration of some parameters, including MDA level, p-Drp1ser616/total Drp1 ratio, and CPT1 protein expression. These findings suggest that PCSK9 inhibitor is superior to atorvastatin in instigating weight loss, cholesterol reduction, and attenuation of mitochondrial oxidative stress in oxidative muscle fibers of obese female rats.
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Rana RB, Jilani K, Shahid M, Riaz M, Ranjha MH, Bibi I, Asghar A, Irfan M. Atorvastatin Induced Erythrocytes Membrane Blebbing. Dose Response 2019; 17:1559325819869076. [PMID: 31447619 PMCID: PMC6691667 DOI: 10.1177/1559325819869076] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/02/2019] [Accepted: 07/18/2019] [Indexed: 01/01/2023] Open
Abstract
Atorvastatin, an inhibitor of 3-hydroxy-3-methylglutaryl-coenzymeA reductase, is usually used for the treatment of hypercholesterolemia. Besides its pharmacological and side actions, its toxic effects on human nucleus devoid of erythrocytes are still unknown. Eryptosis is an alternative term used for suicidal erythrocyte death. Membrane blebbing is among the common markers of eryptosis. In this study, eryptotic effect of atorvastatin was investigated by exposing the erythrocytes for 48 hours to different concentrations (1-10 µM) of atorvastatin. The experimental work related to investigation of eryptosis was done by cell size measurement and calcium channel inhibition. As a possible mechanism of eryptosis, atorvastatin-induced oxidative stress was evaluated by determining catalase, glutathione peroxidase, and superoxide dismutase activities. Similarly, necrotic effect of atorvastatin was also determined by hemolytic assay. Results of our study illustrated that the tested doses of atorvastatin may induce oxidative stress as observed by significant reduction in superoxide dismutase, glutathione peroxidase, and catalase activities as well as induce eryptosis, featured by erythrocytes membrane blebbing. The study concluded that induction of oxidative stress by atorvastatin may lead to eryptosis.
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Affiliation(s)
| | - Kashif Jilani
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Shahid
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Riaz
- Department of Allied Health Sciences, Faculty of Medical and Health Sciences, University of Sargodha, Sargodha, Pakistan
| | | | - Ismat Bibi
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Asma Asghar
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Irfan
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
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Thompson PD, Taylor B. A Novel Mechanism to Explain Statin-Associated Skeletal Muscle Symptoms. JACC Basic Transl Sci 2019; 4:524-526. [PMID: 31468007 PMCID: PMC6712415 DOI: 10.1016/j.jacbts.2019.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Paul D. Thompson
- Division of Cardiology, Hartford Hospital, Hartford, Connecticut
| | - Beth Taylor
- Division of Cardiology, Hartford Hospital, Hartford, Connecticut
- Department of Kinesiology, University of Connecticut, Hartford, Connecticut
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Lotteau S, Ivarsson N, Yang Z, Restagno D, Colyer J, Hopkins P, Weightman A, Himori K, Yamada T, Bruton J, Steele D, Westerblad H, Calaghan S. A Mechanism for Statin-Induced Susceptibility to Myopathy. JACC Basic Transl Sci 2019; 4:509-523. [PMID: 31468006 PMCID: PMC6712048 DOI: 10.1016/j.jacbts.2019.03.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/27/2019] [Accepted: 03/27/2019] [Indexed: 12/12/2022]
Abstract
This study aimed to identify a mechanism for statin-induced myopathy that explains its prevalence and selectivity for skeletal muscle, and to understand its interaction with moderate exercise. Statin-associated adverse muscle symptoms reduce adherence to statin therapy; this limits the effectiveness of statins in reducing cardiovascular risk. The issue is further compounded by perceived interactions between statin treatment and exercise. This study examined muscles from individuals taking statins and rats treated with statins for 4 weeks. In skeletal muscle, statin treatment caused dissociation of the stabilizing protein FK506 binding protein (FKBP12) from the sarcoplasmic reticulum (SR) calcium (Ca2+) release channel, the ryanodine receptor 1, which was associated with pro-apoptotic signaling and reactive nitrogen species/reactive oxygen species (RNS/ROS)-dependent spontaneous SR Ca2+ release events (Ca2+ sparks). Statin treatment had no effect on Ca2+ spark frequency in cardiac myocytes. Despite potentially deleterious effects of statins on skeletal muscle, there was no impact on force production or SR Ca2+ release in electrically stimulated muscle fibers. Statin-treated rats with access to a running wheel ran further than control rats; this exercise normalized FKBP12 binding to ryanodine receptor 1, preventing the increase in Ca2+ sparks and pro-apoptotic signaling. Statin-mediated RNS/ROS-dependent destabilization of SR Ca2+ handling has the potential to initiate skeletal (but not cardiac) myopathy in susceptible individuals. Importantly, although exercise increases RNS/ROS, it did not trigger deleterious statin effects on skeletal muscle. Indeed, our results indicate that moderate exercise might benefit individuals who take statins.
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Key Words
- Ca2+, calcium
- FDB, flexor digitorum brevis
- FKBP12, FK506 binding protein (calstabin)
- GAS, gastrocnemius
- HADHA, hydroxyacyl-CoA dehydrogenase/3-ketoacyl-CoA thiolase/enoyl-CoA hydratase
- HMG CoA, 3-hydroxy-3-methylglutaryl coenzyme A
- L-NAME, N(ω)-nitro-L-arginine methyl ester
- NOS, nitric oxide synthase
- PGC1α, peroxisome proliferator-activated receptor γ co-activator 1α
- RNS, reactive nitrogen species
- ROS, reactive oxygen species
- RyR, ryanodine receptor
- SOD, superoxide dismutase
- SR, sarcoplasmic reticulum
- TUNEL, terminal deoxynucleotidyl transferase dUTP nick end labeling
- calcium leak
- exercise
- myopathy
- ryanodine receptor
- statin
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Affiliation(s)
- Sabine Lotteau
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Niklas Ivarsson
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Zhaokang Yang
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Damien Restagno
- VetAgro Sup, APCSe, Université de Lyon, Marcy l’Etoile, France
| | - John Colyer
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Philip Hopkins
- Leeds Institute of Medical Research at St James’s, University of Leeds, Leeds, United Kingdom
| | - Andrew Weightman
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, United Kingdom
| | - Koichi Himori
- Graduate School of Health Sciences, Sapporo Medical University, Chuo-ku, Sapporo, Japan
| | - Takashi Yamada
- Graduate School of Health Sciences, Sapporo Medical University, Chuo-ku, Sapporo, Japan
| | - Joseph Bruton
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Derek Steele
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Håkan Westerblad
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Sarah Calaghan
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
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Cao R, Li Q, Chen Y, Yao M, Wu Q, Zhou H. Efficacy of locally-delivered statins adjunct to non-surgical periodontal therapy for chronic periodontitis: a Bayesian network analysis. BMC Oral Health 2019; 19:105. [PMID: 31196047 PMCID: PMC6567452 DOI: 10.1186/s12903-019-0789-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/20/2019] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Studies indicate locally-delivered statins offer additional benefits to scaling and root planning (SRP), however, it is still hard to say which type of statins is better. This network meta-analysis aimed to assess the effect of locally-delivered statins and rank the most efficacious statin for treating chronic periodontitis (CP) in combination with SRP. METHODS We screened four literature databases (Pubmed, Embase, Cochrane Library, and Web of Science) for randomized controlled clinical trials (RCTs) published up to June 2018 that compared different statins in the treatment of chronic periodontitis. The outcomes analyzed were changes in intrabony defect depth (IBD), pocket depth (PD), and clinical attachment level (CAL). We carried out Bayesian network meta-analysis of CP without systemic diseases. Traditional and Bayesian network meta-analyses were conducted using random-effects models. RESULTS Greater filling of IBD, reduction in PD, and gain in CAL were observed for SRP treated in combination with statins when compared to SRP alone for treating CP without systemic diseases. Specifically, SRP+ Atorvastatin (ATV) (mean difference [MD]: 1.5 mm, 1.4 mm, 1.8 mm, respectively), SRP + Rosuvastatin (RSV) (MD: 1.8 mm, 2.0 mm, 2.1 mm, respectively), and SRP + Simvastatin (SMV) (MD: 1.1 mm, 2.2 mm, 2.1 mm, respectively) were identified. However, no difference was found among the statins tested. In CP patients with type 2 diabetic (T2DM) or in smokers, additional benefits were observed from locally delivered statins. CONCLUSION Local statin use adjunctive to SRP confers additional benefits in treating CP by SRP, even in T2DM and smokers. RSV may be the best one to fill in IBD. However, considering the limitations of this study, clinicians must use cautious when applying the results and further studies are required to explore the efficacy of statins in CP with or without the risk factors (T2DM comorbidity or smoking history).
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Affiliation(s)
- Ruoyan Cao
- Department of Prosthodontics, Xiangya Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
| | - Qiulan Li
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Middle Renmin Road, Changsha, 410011 China
| | - Yu Chen
- Department of Prosthodontics, Xiangya Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
| | - Mianfeng Yao
- Department of Oral Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410083 China
| | - Qiqi Wu
- Department of Operative Dentistry and Endodontics, Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
| | - Hongbo Zhou
- Department of Prosthodontics, Xiangya Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
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Sanvee GM, Bouitbir J, Krähenbühl S. Insulin prevents and reverts simvastatin-induced toxicity in C2C12 skeletal muscle cells. Sci Rep 2019; 9:7409. [PMID: 31092879 PMCID: PMC6520350 DOI: 10.1038/s41598-019-43938-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 04/30/2019] [Indexed: 02/06/2023] Open
Abstract
Simvastatin is an inhibitor of the 3-hydroxy-3-methylglutaryl-CoA reductase used for decreasing low density lipoprotein (LDL)-cholesterol in patients. It is well-tolerated but can cause myopathy. Our aims were to enlarge our knowledge regarding mechanisms and effects of insulin on simvastatin-associated myotoxicity in C2C12 myotubes. Simvastatin (10 µM) reduced membrane integrity and ATP content in myotubes treated for 24 hours, which could be prevented and partially reversed concentration- and time-dependently by insulin. Furthermore, simvastatin impaired the phosphorylation of Akt (Protein Kinase B) mainly at Ser473 and less at Thr308, indicating impaired activity of the mammalian Target of Rapamycin Complex 2 (mTORC2). Impaired activation of Akt increased mRNA expression of the muscle atrophy F-Box (MAFbx), decreased activation of the mammalian Target of Rapamycin Complex 1 (mTORC1) and stimulated apoptosis by impairing the Ser9 phosphorylation of glycogen synthase kinase 3β. Decreased phosphorylation of Akt at both phosphorylation sites and of downstream substrates as well as apoptosis were prevented concentration-dependently by insulin. In addition, simvastatin caused accumulation of the insulin receptor β-chain in the endoplasmic reticulum (ER) and increased cleavage of procaspase-12, indicating ER stress. Insulin reduced the expression of the insulin receptor β-chain but increased procaspase-12 activation in the presence of simvastatin. In conclusion, simvastatin impaired activation of Akt Ser473 most likely as a consequence of reduced activity of mTORC2. Insulin could prevent the effects of simvastatin on the insulin signaling pathway and on apoptosis, but not on the endoplasmic reticulum (ER) stress induction.
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Affiliation(s)
- Gerda M Sanvee
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Jamal Bouitbir
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland.,Swiss Centre for Applied Human Toxicology (SCAHT), Basel, Switzerland
| | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland. .,Department of Biomedicine, University of Basel, Basel, Switzerland. .,Swiss Centre for Applied Human Toxicology (SCAHT), Basel, Switzerland.
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Bouitbir J, Sanvee GM, Panajatovic MV, Singh F, Krähenbühl S. Mechanisms of statin-associated skeletal muscle-associated symptoms. Pharmacol Res 2019; 154:104201. [PMID: 30877064 DOI: 10.1016/j.phrs.2019.03.010] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/24/2019] [Accepted: 03/10/2019] [Indexed: 12/25/2022]
Abstract
Statins lower the serum low-density lipoprotein cholesterol and prevent cardiovascular events by inhibiting 3-hydroxy-3-methyl-glutaryl-CoA reductase. Although the safety of statins is documented, many patients ingesting statins may suffer from skeletal muscle-associated symptoms (SAMS). Importantly, SAMS are a common reason for stopping the treatment with statins. Statin-associated muscular symptoms include fatigue, weakness and pain, possibly accompanied by elevated serum creatine kinase activity. The most severe muscular adverse reaction is the potentially fatal rhabdomyolysis. The frequency of SAMS is variable but in up to 30% of the patients ingesting statins, depending on the population treated and the statin used. The mechanisms leading to SAMS are currently not completely clarified. Over the last 15 years, several research articles focused on statin-induced mitochondrial dysfunction as a reason for SAMS. Statins can impair the function of the mitochondrial respiratory chain, thereby reducing ATP and increasing ROS production. This can induce mitochondrial membrane permeability transition, release of cytochrome c into the cytosol and induce apoptosis. In parallel, statins inhibit activation of Akt, mainly due to reduced function of mTORC2, which may be related to mitochondrial dysfunction. Mitochondrial dysfunction by statins is also responsible for activation of AMPK, which is associated with impaired activation of mTORC1. Reduced activation of mTORC1 leads to increased skeletal muscle protein degradation, impaired protein synthesis and stimulation of apoptosis. In this paper, we discuss some of the different hypotheses how statins affect skeletal muscle in more detail, focusing particularly on those related to mitochondrial dysfunction and the impairment of the Akt/mTOR pathway.
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Affiliation(s)
- Jamal Bouitbir
- Division of Clinical Pharmacology & Toxicology, University Hospital, 4031, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), Basel, Switzerland
| | - Gerda M Sanvee
- Division of Clinical Pharmacology & Toxicology, University Hospital, 4031, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland
| | - Miljenko V Panajatovic
- Division of Clinical Pharmacology & Toxicology, University Hospital, 4031, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland
| | - François Singh
- Division of Clinical Pharmacology & Toxicology, University Hospital, 4031, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland
| | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology, University Hospital, 4031, Basel, Switzerland; Department of Biomedicine, University of Basel, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), Basel, Switzerland.
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49
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Mechanisms of insulin resistance by simvastatin in C2C12 myotubes and in mouse skeletal muscle. Biochem Pharmacol 2019; 164:23-33. [PMID: 30796916 DOI: 10.1016/j.bcp.2019.02.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 02/19/2019] [Indexed: 02/06/2023]
Abstract
Statins inhibit cholesterol biosynthesis and lower serum LDL-cholesterol levels. They are generally well tolerated, but can cause insulin resistance in patients. Therefore, we investigated the mechanisms underlying the statin-induced insulin resistance. We used mice and C2C12 myotubes (murine cell line): mice (n = 10) were treated with oral simvastatin (5 mg/kg/day) or water (control) for 21 days and C2C12 cells were exposed to 10 μM simvastatin for 24 h. After intraperitoneal glucose application (2 g/kg), simvastatin-treated mice had higher glucose but equal insulin plasma concentrations than controls and lower glucose transport into skeletal muscle. Similarly, glucose uptake by C2C12 myotubes exposed to 10 μM simvastatin for 24 h was impaired compared to control cells. In simvastatin-treated C2C12 myotubes, mRNA and protein expression of the insulin receptor (IR) β-chain was increased, but the phosphorylation (Tyr1361) was impaired. Simvastatin decreased numerically Akt/PKB Thr308 phosphorylation (via insulin signaling pathway) and significantly Akt/PKB Ser473 phosphorylation (via mTORC2), which was explained by impaired phosphorylation of mTOR Ser2448. Reduced phosphorylation of Akt/PKB impaired downstream phosphorylation of GSK3β, leading to impaired translocation of GLUT4 into plasma membranes of C2C12 myotubes. In contrast, reduced phosphorylation of AS160 could be excluded as a reason for impaired GLUT4 translocation. In conclusion, simvastatin caused insulin resistance in mice and impaired glucose uptake in C2C12 myotubes. The findings in myotubes can be explained by diminished activation of Akt/PKB by mTORC2 and downstream effects on GSK3β, impairing the translocation of GLUT4 and the uptake of glucose.
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PGC-1β modulates statin-associated myotoxicity in mice. Arch Toxicol 2018; 93:487-504. [PMID: 30511338 DOI: 10.1007/s00204-018-2369-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/29/2018] [Indexed: 01/07/2023]
Abstract
Statins inhibit cholesterol biosynthesis and lower serum LDL-cholesterol levels. Statins are generally well tolerated, but can be associated with potentially life-threatening myopathy of unknown mechanism. We have shown previously that statins impair PGC-1β expression in human and rat skeletal muscle, suggesting that PGC-1β may play a role in statin-induced myopathy. PGC-1β is a transcriptional co-regulator controlling the expression of important genes in mitochondrial biogenesis, antioxidative capacity and energy metabolism. The principle aim of the current study was to investigate the interaction between atorvastatin and PGC-1β in more detail. We therefore treated wild-type mice and mice with selective skeletal muscle knockout of PGC-1β (PGC-1β(i)skm-/- mice) with oral atorvastatin (5 mg/kg/day) for 2 weeks. At the end of treatment, we determined body parameters, muscle function, structure, and composition as well as the function of muscle mitochondria, mitochondrial biogenesis and activation of apoptotic pathways. In wild-type mice, atorvastatin selectively impaired mitochondrial function in glycolytic muscle and caused a conversion of oxidative type IIA to glycolytic type IIB myofibers. Conversely, in oxidative muscle of wild-type mice, atorvastatin enhanced mitochondrial function via activation of mitochondrial biogenesis pathways and decreased apoptosis. In PGC-1β(i)skm-/- mice, atorvastatin induced a switch towards glycolytic fibers, caused mitochondrial dysfunction, increased mitochondrial ROS production, impaired mitochondrial proliferation and induced apoptosis in both glycolytic and oxidative skeletal muscle. Our work reveals that atorvastatin mainly affects glycolytic muscle in wild-type mice and demonstrates the importance of PGC-1β for oxidative muscle integrity during long-term exposure to a myotoxic agent.
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