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Gutlapalli SD, Kondapaneni V, Toulassi IA, Poudel S, Zeb M, Choudhari J, Cancarevic I. The Effects of Resveratrol on Telomeres and Post Myocardial Infarction Remodeling. Cureus 2020; 12:e11482. [PMID: 33329978 PMCID: PMC7735524 DOI: 10.7759/cureus.11482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 11/14/2020] [Indexed: 12/15/2022] Open
Abstract
Post myocardial infarction (MI) remodeling is the term used to define the changes in cardiac musculature after sustaining an ischemic injury. These changes decrease myocardial function and ultimately lead to heart failure. We review the contributing factors to post-MI remodeling, its association with telomere biology, as well as a myriad of other factors affecting aging and telomere length in relation to cardiovascular health. The main focus is on the effects of resveratrol in the cardiovascular system and its potential for therapeutic use in preventing long-term cardiovascular morbidity and mortality. We tried to answer important questions regarding the potential for resveratrol as a therapeutic drug to prevent adverse post-MI remodeling. In our search, we gathered 62 studies and narrowed our data down to 44 studies. The database used was PubMed, and the keywords used are "Resveratrol", "Telomere", "Post Myocardial Infarction". All the studies were carefully screened for relevant articles regarding our topic manually, Articles related to a positive association between resveratrol and its anti-aging, cardioprotective effects have been included in our study, as we could not find any articles in our search which showed a negative correlation. Our review concluded that resveratrol had pro-telomerase effects which could counter the development of adverse post-MI remodeling. Therefore resveratrol could be a useful therapeutic add-on drug to prevent cardiovascular disease. It is essential that further research including observational and large-scale clinical trials should be conducted to increase our understanding of the efficacy and viability of these novel therapeutic interventions.
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Affiliation(s)
- Sai Dheeraj Gutlapalli
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Varshitha Kondapaneni
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ijeoma A Toulassi
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Sujan Poudel
- Family Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Psychiatry and Behavioral Sciences, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Mehwish Zeb
- Pediatrics, Khyber Teaching Hospital, Peshawar, PAK
| | - Jinal Choudhari
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ivan Cancarevic
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
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102
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Herrera JJ, Louzon S, Pifer K, Leander D, Merrihew GE, Park JH, Szczesniak K, Whitson J, Wilkinson JE, Fiehn O, MacCoss MJ, Day SM, Miller RA, Garratt M. Acarbose has sex-dependent and -independent effects on age-related physical function, cardiac health, and lipid biology. JCI Insight 2020; 5:137474. [PMID: 32990683 PMCID: PMC7710286 DOI: 10.1172/jci.insight.137474] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 09/23/2020] [Indexed: 11/17/2022] Open
Abstract
With an expanding aging population burdened with comorbidities, there is considerable interest in treatments that optimize health in later life. Acarbose (ACA), a drug used clinically to treat type 2 diabetes mellitus (T2DM), can extend mouse life span with greater effect in males than in females. Using a genetically heterogeneous mouse model, we tested the ability of ACA to ameliorate functional, pathological, and biochemical changes that occur during aging, and we determined which of the effects of age and drug were sex dependent. In both sexes, ACA prevented age-dependent loss of body mass, in addition to improving balance/coordination on an accelerating rotarod, rotarod endurance, and grip strength test. Age-related cardiac hypertrophy was seen only in male mice, and this male-specific aging effect was attenuated by ACA. ACA-sensitive cardiac changes were associated with reduced activation of cardiac growth-promoting pathways and increased abundance of peroxisomal proteins involved in lipid metabolism. ACA further ameliorated age-associated changes in cardiac lipid species, particularly lysophospholipids - changes that have previously been associated with aging, cardiac dysfunction, and cardiovascular disease in humans. In the liver, ACA had pronounced effects on lipid handling in both sexes, reducing hepatic lipidosis during aging and shifting the liver lipidome in adulthood, particularly favoring reduced triglyceride (TAG) accumulation. Our results demonstrate that ACA, already in clinical use for T2DM, has broad-ranging antiaging effects in multiple tissues, and it may have the potential to increase physical function and alter lipid biology to preserve or improve health at older ages.
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Affiliation(s)
- Jonathan J Herrera
- Department of Molecular & Integrative Physiology, University of Michigan (UM), Ann Arbor, Michigan, USA
| | - Sean Louzon
- Department of Molecular & Integrative Physiology, University of Michigan (UM), Ann Arbor, Michigan, USA
| | - Kaitlyn Pifer
- Department of Pathology, UM Medical School, Ann Arbor, Michigan, USA
| | - Danielle Leander
- Department of Pathology, UM Medical School, Ann Arbor, Michigan, USA
| | | | | | - Kate Szczesniak
- Department of Molecular & Integrative Physiology, University of Michigan (UM), Ann Arbor, Michigan, USA
| | - Jeremy Whitson
- Department of Pathology, University of Washington, Seattle, Washington, USA
| | - John E Wilkinson
- Unit for Laboratory Animal Medicine and Department of Pathology, UM, Ann Arbor, Michigan, USA
| | | | | | - Sharlene M Day
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Richard A Miller
- Department of Pathology, UM Medical School, Ann Arbor, Michigan, USA.,UM Geriatrics Center, Ann Arbor, Michigan, USA
| | - Michael Garratt
- Department of Pathology, UM Medical School, Ann Arbor, Michigan, USA.,Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
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103
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Cianflone E, Cappetta D, Mancuso T, Sabatino J, Marino F, Scalise M, Albanese M, Salatino A, Parrotta EI, Cuda G, De Angelis A, Berrino L, Rossi F, Nadal-Ginard B, Torella D, Urbanek K. Statins Stimulate New Myocyte Formation After Myocardial Infarction by Activating Growth and Differentiation of the Endogenous Cardiac Stem Cells. Int J Mol Sci 2020; 21:ijms21217927. [PMID: 33114544 PMCID: PMC7663580 DOI: 10.3390/ijms21217927] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 12/20/2022] Open
Abstract
The 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins) exert pleiotropic effects on cardiac cell biology which are not yet fully understood. Here we tested whether statin treatment affects resident endogenous cardiac stem/progenitor cell (CSC) activation in vitro and in vivo after myocardial infarction (MI). Statins (Rosuvastatin, Simvastatin and Pravastatin) significantly increased CSC expansion in vitro as measured by both BrdU incorporation and cell growth curve. Additionally, statins increased CSC clonal expansion and cardiosphere formation. The effects of statins on CSC growth and differentiation depended on Akt phosphorylation. Twenty-eight days after myocardial infarction by permanent coronary ligation in rats, the number of endogenous CSCs in the infarct border zone was significantly increased by Rosuvastatin-treatment as compared to untreated controls. Additionally, commitment of the activated CSCs into the myogenic lineage (c-kitpos/Gata4pos CSCs) was increased by Rosuvastatin administration. Accordingly, Rosuvastatin fostered new cardiomyocyte formation after MI. Finally, Rosuvastatin treatment reversed the cardiomyogenic defects of CSCs in c-kit haploinsufficient mice, increasing new cardiomyocyte formation by endogenous CSCs in these mice after myocardial infarction. In summary, statins, by sustaining Akt activation, foster CSC growth and differentiation in vitro and in vivo. The activation and differentiation of the endogenous CSC pool and consequent new myocyte formation by statins improve myocardial remodeling after coronary occlusion in rodents. Similar effects might contribute to the beneficial effects of statins on human cardiovascular diseases.
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Affiliation(s)
- Eleonora Cianflone
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (E.C.); (J.S.); (M.A.); (E.I.P.); (B.N.-G.)
| | - Donato Cappetta
- Department of Experimental Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (D.C.); (A.D.A.); (L.B.); (F.R.)
| | - Teresa Mancuso
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (T.M.); (F.M.); (M.S.); (A.S.); (G.C.)
| | - Jolanda Sabatino
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (E.C.); (J.S.); (M.A.); (E.I.P.); (B.N.-G.)
| | - Fabiola Marino
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (T.M.); (F.M.); (M.S.); (A.S.); (G.C.)
| | - Mariangela Scalise
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (T.M.); (F.M.); (M.S.); (A.S.); (G.C.)
| | - Michele Albanese
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (E.C.); (J.S.); (M.A.); (E.I.P.); (B.N.-G.)
| | - Alessandro Salatino
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (T.M.); (F.M.); (M.S.); (A.S.); (G.C.)
| | - Elvira Immacolata Parrotta
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (E.C.); (J.S.); (M.A.); (E.I.P.); (B.N.-G.)
| | - Giovanni Cuda
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (T.M.); (F.M.); (M.S.); (A.S.); (G.C.)
| | - Antonella De Angelis
- Department of Experimental Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (D.C.); (A.D.A.); (L.B.); (F.R.)
| | - Liberato Berrino
- Department of Experimental Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (D.C.); (A.D.A.); (L.B.); (F.R.)
| | - Francesco Rossi
- Department of Experimental Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (D.C.); (A.D.A.); (L.B.); (F.R.)
| | - Bernardo Nadal-Ginard
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (E.C.); (J.S.); (M.A.); (E.I.P.); (B.N.-G.)
| | - Daniele Torella
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (T.M.); (F.M.); (M.S.); (A.S.); (G.C.)
- Correspondence: (D.T.); (K.U.)
| | - Konrad Urbanek
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (T.M.); (F.M.); (M.S.); (A.S.); (G.C.)
- Correspondence: (D.T.); (K.U.)
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104
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Kiyota N, Shiga Y, Omodaka K, Pak K, Nakazawa T. Time-Course Changes in Optic Nerve Head Blood Flow and Retinal Nerve Fiber Layer Thickness in Eyes with Open-angle Glaucoma. Ophthalmology 2020; 128:663-671. [PMID: 33065167 DOI: 10.1016/j.ophtha.2020.10.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/21/2020] [Accepted: 10/07/2020] [Indexed: 01/20/2023] Open
Abstract
PURPOSE To determine whether decreased optic nerve head (ONH) blood flow (BF) precedes or follows decreased circumpapillary retinal nerve fiber layer thickness (cpRNFLT) in eyes with open-angle glaucoma (OAG). DESIGN Retrospective, longitudinal study. PARTICIPANTS This study followed up 350 eyes of 225 OAG patients for at least 2 years and collected data from each patient from at least 5 examinations obtained with laser speckle flowgraphy (LSFG) and OCT. METHODS In the superior, temporal, and inferior ONH quadrants, tissue area mean blur rate (MT), representing ONH tissue BF, was measured with LSFG, whereas cpRNFLT was measured with OCT. A multivariate linear mixed-effects model was used to identify potential predictors of faster MT decrease, adjusting for possible confounding factors. Based on these results, each quadrant of each patient was assigned a risk point if the quadrant was the superior or temporal, if patient age was older than the median (61 years), and if patient pulse rate was higher than median (74 beats per minute). The quadrants were then compared with a mixed-effects Cox model for MT and cpRNFLT changes, defined as a difference between the baseline value and the values from the latest 2 consecutive follow-up visits of more than 1.96 × the corresponding coefficient of variation. MAIN OUTCOME MEASURES Ophthalmic and systemic variables and MT and cpRNFLT in the superior, temporal, and inferior quadrants. RESULTS The multivariate model showed that MT decrease was faster in older patients with higher pulse rate and slower in inferior quadrants (P < 0.05). Quadrants with 0 risk points showed primary cpRNFLT decrease (P = 0.048), 1-risk point quadrants showed simultaneous cpRNFLT and MT decrease (P = 0.260), and 2-risk point and 3-risk point quadrants showed primary MT decrease (P < 0.001). CONCLUSIONS Older patients with higher pulse rate are at greater risk of a primary reduction in ONH tissue BF, that is, preceding cpRNFLT decrease, in the superior and temporal quadrants.
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Affiliation(s)
- Naoki Kiyota
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Yukihiro Shiga
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kazuko Omodaka
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kyongsun Pak
- Division of Biostatistics, Department of Data Management, Center for Clinical Research, National Center for Child Health and Development, Tokyo, Japan
| | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan.
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105
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Whitson JA, Bitto A, Zhang H, Sweetwyne MT, Coig R, Bhayana S, Shankland EG, Wang L, Bammler TK, Mills KF, Imai S, Conley KE, Marcinek DJ, Rabinovitch PS. SS-31 and NMN: Two paths to improve metabolism and function in aged hearts. Aging Cell 2020; 19:e13213. [PMID: 32779818 PMCID: PMC7576234 DOI: 10.1111/acel.13213] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/16/2020] [Accepted: 07/13/2020] [Indexed: 12/14/2022] Open
Abstract
The effects of two different mitochondrial-targeted drugs, SS-31 and NMN, were tested on Old mouse hearts. After treatment with the drugs, individually or Combined, heart function was examined by echocardiography. SS-31 partially reversed an age-related decline in diastolic function while NMN fully reversed an age-related deficiency in systolic function at a higher workload. Metabolomic analysis revealed that both NMN and the Combined treatment increased nicotinamide and 1-methylnicotinamide levels, indicating greater NAD+ turnover, but only the Combined treatment resulted in significantly greater steady-state NAD(H) levels. A novel magnetic resonance spectroscopy approach was used to assess how metabolite levels responded to changing cardiac workload. PCr/ATP decreased in response to increased workload in Old Control, but not Young, hearts, indicating an age-related decline in energetic capacity. Both drugs were able to normalize the PCr/ATP dynamics. SS-31 and NMN treatment also increased mitochondrial NAD(P)H production under the higher workload, while only NMN increased NAD+ in response to increased work. These measures did not shift in hearts given the Combined treatment, which may be owed to the enhanced NAD(H) levels in the resting state after this treatment. Overall, these results indicate that both drugs are effective at restoring different aspects of mitochondrial and heart health and that combining them results in a synergistic effect that rejuvenates Old hearts and best recapitulates the Young state.
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Affiliation(s)
- Jeremy A. Whitson
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
| | - Alessandro Bitto
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
| | - Huiliang Zhang
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
| | - Mariya T. Sweetwyne
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
| | - Rene Coig
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
| | - Saakshi Bhayana
- Department of RadiologyUniversity of WashingtonSeattleWashingtonUSA
| | | | - Lu Wang
- Department of Environmental & Occupational Health SciencesUniversity of WashingtonSeattleWashingtonUSA
| | - Theo K. Bammler
- Department of Environmental & Occupational Health SciencesUniversity of WashingtonSeattleWashingtonUSA
| | - Kathryn F. Mills
- Department of Developmental BiologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Shin‐Ichiro Imai
- Department of Developmental BiologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Kevin E. Conley
- Department of RadiologyUniversity of WashingtonSeattleWashingtonUSA
| | | | - Peter S. Rabinovitch
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWashingtonUSA
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106
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Cao J, Cowan DB, Wang DZ. tRNA-Derived Small RNAs and Their Potential Roles in Cardiac Hypertrophy. Front Pharmacol 2020; 11:572941. [PMID: 33041815 PMCID: PMC7527594 DOI: 10.3389/fphar.2020.572941] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/28/2020] [Indexed: 12/21/2022] Open
Abstract
Transfer RNAs (tRNAs) are abundantly expressed, small non-coding RNAs that have long been recognized as essential components of the protein translation machinery. The tRNA-derived small RNAs (tsRNAs), including tRNA halves (tiRNAs), and tRNA fragments (tRFs), were unexpectedly discovered and have been implicated in a variety of important biological functions such as cell proliferation, cell differentiation, and apoptosis. Mechanistically, tsRNAs regulate mRNA destabilization and translation, as well as retro-element reverse transcriptional and post-transcriptional processes. Emerging evidence has shown that tsRNAs are expressed in the heart, and their expression can be induced by pathological stress, such as hypertrophy. Interestingly, cardiac pathophysiological conditions, such as oxidative stress, aging, and metabolic disorders can be viewed as inducers of tsRNA biogenesis, which further highlights the potential involvement of tsRNAs in these conditions. There is increasing enthusiasm for investigating the molecular and biological functions of tsRNAs in the heart and their role in cardiovascular disease. It is anticipated that this new class of small non-coding RNAs will offer new perspectives in understanding disease mechanisms and may provide new therapeutic targets to treat cardiovascular disease.
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Affiliation(s)
- Jun Cao
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Douglas B Cowan
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Da-Zhi Wang
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
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107
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No MH, Choi Y, Cho J, Heo JW, Cho EJ, Park DH, Kang JH, Kim CJ, Seo DY, Han J, Kwak HB. Aging Promotes Mitochondria-Mediated Apoptosis in Rat Hearts. Life (Basel) 2020; 10:life10090178. [PMID: 32899456 PMCID: PMC7555313 DOI: 10.3390/life10090178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/16/2020] [Accepted: 09/04/2020] [Indexed: 12/26/2022] Open
Abstract
Aging represents a major risk for developing cardiac disease, including heart failure. The gradual deterioration of cell quality control with aging leads to cell death, a phenomenon associated with mitochondrial dysfunction in the heart. Apoptosis is an important quality control process and a necessary phenomenon for maintaining homeostasis and normal function of the heart. However, the mechanism of mitochondria-mediated apoptosis in aged hearts remains poorly understood. Here, we used male Fischer 344 rats of various ages, representing very young (1 month), young (4 months), middle-aged (12 months), and old (20 months) rats, to determine whether mitochondria-mediated apoptotic signals and apoptosis in the left ventricle of the heart are altered notably with aging. As the rats aged, the extramyocyte space and myocyte cross-sectional area in their left ventricle muscle increased, while the number of myocytes decreased. Additionally, mitochondrion-mediated apoptotic signals and apoptosis increased remarkably during aging. Therefore, our results demonstrate that aging promotes remarkable morphological changes and increases the degree of mitochondrion-mediated apoptosis in the left ventricle of rat hearts.
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Affiliation(s)
- Mi-Hyun No
- Department of Biomedical Science, Program in Biomedical Science & Engineering, Department of Kinesiology, Inha University, Incheon 22212, Korea; (M.-H.N.); (J.-W.H.); (E.-J.C.); (D.-H.P.)
| | - Youngju Choi
- Institute of Sports and Arts Convergence, Inha University, Incheon 22212, Korea; (Y.C.); (J.C.); (J.-H.K.)
| | - Jinkyung Cho
- Institute of Sports and Arts Convergence, Inha University, Incheon 22212, Korea; (Y.C.); (J.C.); (J.-H.K.)
| | - Jun-Won Heo
- Department of Biomedical Science, Program in Biomedical Science & Engineering, Department of Kinesiology, Inha University, Incheon 22212, Korea; (M.-H.N.); (J.-W.H.); (E.-J.C.); (D.-H.P.)
- Institute of Sports and Arts Convergence, Inha University, Incheon 22212, Korea; (Y.C.); (J.C.); (J.-H.K.)
| | - Eun-Jeong Cho
- Department of Biomedical Science, Program in Biomedical Science & Engineering, Department of Kinesiology, Inha University, Incheon 22212, Korea; (M.-H.N.); (J.-W.H.); (E.-J.C.); (D.-H.P.)
- Institute of Sports and Arts Convergence, Inha University, Incheon 22212, Korea; (Y.C.); (J.C.); (J.-H.K.)
| | - Dong-Ho Park
- Department of Biomedical Science, Program in Biomedical Science & Engineering, Department of Kinesiology, Inha University, Incheon 22212, Korea; (M.-H.N.); (J.-W.H.); (E.-J.C.); (D.-H.P.)
- Institute of Sports and Arts Convergence, Inha University, Incheon 22212, Korea; (Y.C.); (J.C.); (J.-H.K.)
| | - Ju-Hee Kang
- Institute of Sports and Arts Convergence, Inha University, Incheon 22212, Korea; (Y.C.); (J.C.); (J.-H.K.)
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Dae Yun Seo
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 47392, Korea; (D.Y.S.); (J.H.)
| | - Jin Han
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 47392, Korea; (D.Y.S.); (J.H.)
| | - Hyo-Bum Kwak
- Department of Biomedical Science, Program in Biomedical Science & Engineering, Department of Kinesiology, Inha University, Incheon 22212, Korea; (M.-H.N.); (J.-W.H.); (E.-J.C.); (D.-H.P.)
- Institute of Sports and Arts Convergence, Inha University, Incheon 22212, Korea; (Y.C.); (J.C.); (J.-H.K.)
- Correspondence: ; Tel.: +82-32-860-8183; Fax: +82-32-860-8188
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108
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Bornstein R, Gonzalez B, Johnson SC. Mitochondrial pathways in human health and aging. Mitochondrion 2020; 54:72-84. [PMID: 32738358 PMCID: PMC7508824 DOI: 10.1016/j.mito.2020.07.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 12/27/2022]
Abstract
Mitochondria are eukaryotic organelles known best for their roles in energy production and metabolism. While often thought of as simply the 'powerhouse of the cell,' these organelles participate in a variety of critical cellular processes including reactive oxygen species (ROS) production, regulation of programmed cell death, modulation of inter- and intracellular nutrient signaling pathways, and maintenance of cellular proteostasis. Disrupted mitochondrial function is a hallmark of eukaryotic aging, and mitochondrial dysfunction has been reported to play a role in many aging-related diseases. While mitochondria are major players in human diseases, significant questions remain regarding their precise mechanistic role. In this review, we detail mechanisms by which mitochondrial dysfunction participate in disease and aging based on findings from model organisms and human genetics studies.
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Affiliation(s)
| | - Brenda Gonzalez
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Simon C Johnson
- Department of Neurology, University of Washington, Seattle, WA, USA; Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA; Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA.
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109
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Testai L, Citi V, Martelli A, Brogi S, Calderone V. Role of hydrogen sulfide in cardiovascular ageing. Pharmacol Res 2020; 160:105125. [PMID: 32783975 DOI: 10.1016/j.phrs.2020.105125] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/17/2020] [Accepted: 08/05/2020] [Indexed: 12/11/2022]
Abstract
Cardiovascular diseases are the main cause of morbidity and mortality in the Western society and ageing is a relevant non-modifiable risk factor. Morphological and functional alterations at endothelial level represent first events of ageing, inevitably followed by vascular dysfunction and consequent atherosclerosis that deeply influences cardiovascular health. Indeed, myocardial hypertrophy and fibrosis typically occur and contribute to compromise overall cardiac output. As regards the intracellular molecular mechanisms involved in the cardiovascular ageing, an intricate network is emerging, revealing a role for many mediators, including SIRT1/AMPK/PCG1α pathway, anti-oxidants factors (i.e. Nrf-2 and FOXOs) and pro-inflammatory cytokines. Thus, the search for pharmacological and non-pharmacological strategies that can promote a "healthy ageing", in order to slow down age-related machinery, are currently an exciting challenge for the biomedical research. Interestingly, hydrogen sulfide (H2S) has been recently recognized as a new player capable to influence intracellular machinery involved in ageing and then it is view as a potential target for preventing cardiovascular diseases. Therefore, this review is focused on the role of H2S in cardiovascular ageing, and on the evidence of the relationship between progressive decline in endogenous H2S levels and the onset of various cardiovascular age-related diseases.
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Affiliation(s)
- Lara Testai
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120, Pisa, Italy; Interdepartmental Research Centre of Ageing, Biology and Pathology, University of Pisa, 56120, Pisa, Italy; Interdepartmental Research Centre "Nutraceuticals and Food for Health (NUTRAFOOD)", University of Pisa, 56120, Pisa, Italy.
| | - Valentina Citi
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120, Pisa, Italy
| | - Alma Martelli
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120, Pisa, Italy; Interdepartmental Research Centre of Ageing, Biology and Pathology, University of Pisa, 56120, Pisa, Italy; Interdepartmental Research Centre "Nutraceuticals and Food for Health (NUTRAFOOD)", University of Pisa, 56120, Pisa, Italy
| | - Simone Brogi
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120, Pisa, Italy
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120, Pisa, Italy; Interdepartmental Research Centre of Ageing, Biology and Pathology, University of Pisa, 56120, Pisa, Italy; Interdepartmental Research Centre "Nutraceuticals and Food for Health (NUTRAFOOD)", University of Pisa, 56120, Pisa, Italy
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Hansen NL, Haarmark C, Zerahn B. Ventricular peak emptying and filling rates measured by gated tomographic radionuclide angiography using a cadmium-zinc-telluride SPECT camera in chemotherapy-naïve cancer patients. J Nucl Cardiol 2020; 27:1193-1201. [PMID: 31127488 DOI: 10.1007/s12350-019-01756-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 05/14/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Radionuclide angiography is widely used for left ventricular function assessment. This study establishes normative data and inter-study repeatability on peak ventricular filling and emptying rates obtained by a cadmium-zinc-telluride SPECT camera. METHOD Cancer patients (N = 764) without diabetes or cardiovascular diseases referred for baseline assessment of cardiac function were included. Repeatability was assessed in 46 patients where two separate acquisitions were performed. Left and right ventricular emptying rates (LPER, RPER) and filling rates (LPFR, RPFR) were obtained and whenever possible also atrial filling rates (PFRa). RESULTS Filling rates were higher in women than men. Emptying rates tended to increase with age, whereas filling rates and the E/A ratio decreased. One patient was excluded from the repeatability analysis due to an unexplained high intra-observer variation. Intraclass correlation coefficients for LPER, RPER, LPFR, and RPFR were 0.99, 0.94, 0.99, and 0.84, no proportional biases were detected. CONCLUSION Reference values and relations to age and gender in chemotherapy-naïve cancer patients without cardiopulmonary disease are presented. The CZT camera provides reproducible estimates of peak emptying and filling rates.
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Affiliation(s)
- Naja Liv Hansen
- Department of Clinical Physiology and Nuclear Medicine, Herlev Hospital, Copenhagen, Denmark.
- Department of Clinical Physiology and Nuclear Medicine, Bispebjerg Hospital, Copenhagen, Denmark.
| | - Christian Haarmark
- Department of Clinical Physiology and Nuclear Medicine, Herlev Hospital, Copenhagen, Denmark
| | - Bo Zerahn
- Department of Clinical Physiology and Nuclear Medicine, Herlev Hospital, Copenhagen, Denmark
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111
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Keshavarz-Bahaghighat H, Darwesh AM, Sosnowski DK, Seubert JM. Mitochondrial Dysfunction and Inflammaging in Heart Failure: Novel Roles of CYP-Derived Epoxylipids. Cells 2020; 9:E1565. [PMID: 32604981 PMCID: PMC7408578 DOI: 10.3390/cells9071565] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 02/07/2023] Open
Abstract
Age-associated changes leading to a decline in cardiac structure and function contribute to the increased susceptibility and incidence of cardiovascular diseases (CVD) in elderly individuals. Indeed, age is considered a risk factor for heart failure and serves as an important predictor for poor prognosis in elderly individuals. Effects stemming from chronic, low-grade inflammation, inflammaging, are considered important determinants in cardiac health; however, our understanding of the mechanisms involved remains unresolved. A steady decline in mitochondrial function is recognized as an important biological consequence found in the aging heart which contributes to the development of heart failure. Dysfunctional mitochondria contribute to increased cellular stress and an innate immune response by activating the NLRP-3 inflammasomes, which have a role in inflammaging and age-related CVD pathogenesis. Emerging evidence suggests a protective role for CYP450 epoxygenase metabolites of N-3 and N-6 polyunsaturated fatty acids (PUFA), epoxylipids, which modulate various aspects of the immune system and protect mitochondria. In this article, we provide insight into the potential roles N-3 and N-6 PUFA have modulating mitochondria, inflammaging and heart failure.
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Affiliation(s)
- Hedieh Keshavarz-Bahaghighat
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2E1, Canada; (H.K.-B.); (A.M.D.); (D.K.S.)
| | - Ahmed M. Darwesh
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2E1, Canada; (H.K.-B.); (A.M.D.); (D.K.S.)
| | - Deanna K. Sosnowski
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2E1, Canada; (H.K.-B.); (A.M.D.); (D.K.S.)
| | - John M. Seubert
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2E1, Canada; (H.K.-B.); (A.M.D.); (D.K.S.)
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2E1, Canada
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta 2020-M Katz Group Centre for Pharmacy and Health Research 11361-87 Avenue, Edmonton, AB T6G 2E1, Canada
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112
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Impaired peroxisomal import in Drosophila oenocytes causes cardiac dysfunction by inducing upd3 as a peroxikine. Nat Commun 2020; 11:2943. [PMID: 32523050 PMCID: PMC7286907 DOI: 10.1038/s41467-020-16781-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 05/25/2020] [Indexed: 12/22/2022] Open
Abstract
Aging is characterized by a chronic, low-grade inflammation, which is a major risk factor for cardiovascular diseases. It remains poorly understood whether pro-inflammatory factors released from non-cardiac tissues contribute to the non-autonomous regulation of age-related cardiac dysfunction. Here, we report that age-dependent induction of cytokine unpaired 3 (upd3) in Drosophila oenocytes (hepatocyte-like cells) is the primary non-autonomous mechanism for cardiac aging. We show that upd3 is significantly up-regulated in aged oenocytes. Oenocyte-specific knockdown of upd3 is sufficient to block aging-induced cardiac arrhythmia. We further show that the age-dependent induction of upd3 is triggered by impaired peroxisomal import and elevated JNK signaling in aged oenocytes. We term hormonal factors induced by peroxisome dysfunction as peroxikines. Intriguingly, oenocyte-specific overexpression of Pex5, the key peroxisomal import receptor, blocks age-related upd3 induction and alleviates cardiac arrhythmicity. Thus, our studies identify an important role of hepatocyte-specific peroxisomal import in mediating non-autonomous regulation of cardiac aging.
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113
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Saheera S, Krishnamurthy P. Cardiovascular Changes Associated with Hypertensive Heart Disease and Aging. Cell Transplant 2020; 29:963689720920830. [PMID: 32393064 PMCID: PMC7586256 DOI: 10.1177/0963689720920830] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cardiovascular diseases are the leading cause of mortality and morbidity worldwide and account for more than 17.9 million deaths (World Health Organization report). Hypertension and aging are two major risk factors for the development of cardiac structural and functional abnormalities. Hypertension, or elevated blood pressure, if left untreated can result in myocardial hypertrophy leading to heart failure (HF). Left ventricular hypertrophy consequent to pressure overload is recognized as the most important predictor of congestive HF and sudden death. The pathological changes occurring during hypertensive heart disease are very complex and involve many cellular and molecular alterations. In contrast, the cardiac changes that occur with aging are a slow but life-long process and involve all of the structural components in the heart and vasculature. However, these structural changes in the cardiovascular system lead to alterations in overall cardiac physiology and function. The pace at which these pathophysiological changes occur varies between individuals owing to many genetic and environmental risk factors. This review highlights the molecular mechanisms of cardiac structural and functional alterations associated with hypertension and aging.
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Affiliation(s)
- Sherin Saheera
- Department of Cardiovascular Medicine, University of Massachusetts Medical School, Worcester, USA
| | - Prasanna Krishnamurthy
- Department of Biomedical Engineering, School of Medicine and School of Engineering, The University of Alabama at Birmingham, USA
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Ruiz-Meana M, Bou-Teen D, Ferdinandy P, Gyongyosi M, Pesce M, Perrino C, Schulz R, Sluijter JPG, Tocchetti CG, Thum T, Madonna R. Cardiomyocyte ageing and cardioprotection: consensus document from the ESC working groups cell biology of the heart and myocardial function. Cardiovasc Res 2020; 116:1835-1849. [DOI: 10.1093/cvr/cvaa132] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/25/2020] [Accepted: 04/30/2020] [Indexed: 12/12/2022] Open
Abstract
Abstract
Advanced age is a major predisposing risk factor for the incidence of coronary syndromes and comorbid conditions which impact the heart response to cardioprotective interventions. Advanced age also significantly increases the risk of developing post-ischaemic adverse remodelling and heart failure after ischaemia/reperfusion (IR) injury. Some of the signalling pathways become defective or attenuated during ageing, whereas others with well-known detrimental consequences, such as glycoxidation or proinflammatory pathways, are exacerbated. The causative mechanisms responsible for all these changes are yet to be elucidated and are a matter of active research. Here, we review the current knowledge about the pathophysiology of cardiac ageing that eventually impacts on the increased susceptibility of cells to IR injury and can affect the efficiency of cardioprotective strategies.
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Affiliation(s)
- Marisol Ruiz-Meana
- Department of Cardiology, Hospital Universitari Vall d’Hebron, Vall d’Hebron Institut de Recerca (VHIR), Universitat Autonoma de Barcelona and Centro de Investigación Biomédica en Red-CV, CIBER-CV, Madrid, Spain
| | - Diana Bou-Teen
- Department of Cardiology, Hospital Universitari Vall d’Hebron, Vall d’Hebron Institut de Recerca (VHIR), Universitat Autonoma de Barcelona and Centro de Investigación Biomédica en Red-CV, CIBER-CV, Madrid, Spain
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Mariann Gyongyosi
- Department of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| | - Maurizio Pesce
- Unità di Ingegneria Tissutale Cardiovascolare, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Cinzia Perrino
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig University Giessen, Giessen, Germany
| | - Joost P G Sluijter
- Laboratory of Experimental Cardiology, Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- Circulatory Health Laboratory, Regenerative Medicine Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Carlo G Tocchetti
- Department of Translational Medical Sciences and Interdepartmental Center of Clinical and Translational Sciences (CIRCET), Federico II University, Naples, Italy
| | - Thomas Thum
- Institute for Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Rosalinda Madonna
- Institute of Cardiology, University of Pisa, Pisa, Italy
- Department of Internal Medicine, University of Texas Medical School in Houston, Houston, TX, USA
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115
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Functional alterations and transcriptomic changes during zebrafish cardiac aging. Biogerontology 2020; 21:637-652. [PMID: 32372324 DOI: 10.1007/s10522-020-09881-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 04/25/2020] [Indexed: 12/22/2022]
Abstract
Aging dramatically increases the risk of cardiovascular diseases in human. Animal models are of great value to study cardiac aging, and zebrafish have become a popular model for aging study recently. However, there is limited knowledge about the progression and regulation of cardiac aging in zebrafish. In this study we first validated the effectiveness of a panel of aging-related markers and revealed their spatial-temporal specificity. Using these markers, we discovered that cardiac aging in zebrafish initiated at mid-age around 24 months, followed by a gradual progression marked with increased DNA damage, inflammatory response and reduced mitochondrial function. Furthermore, we showed aging-related expression profile change in zebrafish hearts was similar to that in rat hearts. Overall, our results provide a deeper insight into the cardiac aging process in zebrafish, which will set up foundation for generating novel cardiac aging models suitable for large scale screening of pharmaceutical targets.
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116
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Molenaars M, Daniels EG, Meurs A, Janssens GE, Houtkooper RH. Mitochondrial cross-compartmental signalling to maintain proteostasis and longevity. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190414. [PMID: 32362258 DOI: 10.1098/rstb.2019.0414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Lifespan in eukaryotic species can be prolonged by shifting from cellular states favouring growth to those favouring maintenance and stress resistance. For instance, perturbations in mitochondrial oxidative phosphorylation (OXPHOS) can shift cells into this latter state and extend lifespan. Because mitochondria rely on proteins synthesized from nuclear as well as mitochondrial DNA, they need to constantly send and receive messages from other compartments of the cell in order to function properly and maintain homeostasis, and lifespan extension is often dependent on this cross-compartmental signalling. Here, we describe the mechanisms of bi-directional mitochondrial cross-compartmental signalling resulting in proteostasis and longevity. These proteostasis mechanisms are highly context-dependent, governed by the origin and extent of stress. Furthermore, we discuss the translatability of these mechanisms and explore therapeutic developments, such as the antibiotic studies targeting mitochondria or mitochondria-derived peptides as therapies for age-related diseases such as neurodegeneration and cancer. This article is part of the theme issue 'Retrograde signalling from endosymbiotic organelles'.
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Affiliation(s)
- Marte Molenaars
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Eileen G Daniels
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Amber Meurs
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Georges E Janssens
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
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Khaltourina D, Matveyev Y, Alekseev A, Cortese F, Ioviţă A. Aging Fits the Disease Criteria of the International Classification of Diseases. Mech Ageing Dev 2020; 189:111230. [PMID: 32251691 DOI: 10.1016/j.mad.2020.111230] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/04/2020] [Accepted: 03/09/2020] [Indexed: 12/24/2022]
Abstract
The disease criteria used by the World Health Organization (WHO) were applied to human biological aging in order to assess whether aging can be classified as a disease. These criteria were developed for the 11th revision of the International Classification of Diseases (ICD) and included disease diagnostics, mechanisms, course and outcomes, known interventions, and linkage to genetic and environmental factors. RESULTS: Biological aging can be diagnosed with frailty indices, functional, blood-based biomarkers. A number of major causal mechanisms of human aging involved in various organs have been described, such as inflammation, replicative cellular senescence, immune senescence, proteostasis failures, mitochondrial dysfunctions, fibrotic propensity, hormonal aging, body composition changes, etc. We identified a number of clinically proven interventions, as well as genetic and environmental factors of aging. Therefore, aging fits the ICD-11 criteria and can be considered a disease. Our proposal was submitted to the ICD-11 Joint Task force, and this led to the inclusion of the extension code for "Ageing-related" (XT9T) into the "Causality" section of the ICD-11. This might lead to greater focus on biological aging in global health policy and might provide for more opportunities for the new therapy developers.
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Affiliation(s)
- Daria Khaltourina
- Department of Risk Factor Prevention, Federal Research Institute for Health Organization and Informatics of Ministry of Health of the Russian Federation, Dobrolyubova St. 11, Moscow, 127254, Russia; International Longevity Alliance, 19 avenue Jean Jaurès, Sceaux, 92330, France.
| | - Yuri Matveyev
- Research Lab, Moscow Regional Research and Clinical Institute, Schepkina St. 61/2 k.1, Moscow, 129110, Russia
| | - Aleksey Alekseev
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, GSP-1, Moscow, 119991, Russia
| | - Franco Cortese
- Biogerontology Research Foundation, Apt 2354 Chynoweth House, Trevissome Park, Truro, London, TR4 8UN, UK
| | - Anca Ioviţă
- International Longevity Alliance, 19 avenue Jean Jaurès, Sceaux, 92330, France
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Dong M, Yang Z, Fang H, Xiang J, Xu C, Zhou Y, Wu Q, Liu J. Aging Attenuates Cardiac Contractility and Affects Therapeutic Consequences for Myocardial Infarction. Aging Dis 2020; 11:365-376. [PMID: 32257547 PMCID: PMC7069457 DOI: 10.14336/ad.2019.0522] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/22/2019] [Indexed: 12/21/2022] Open
Abstract
Cardiac function of the human heart changes with age. The age-related change of systolic function is subtle under normal conditions, but abrupt under stress or in a pathogenesis state. Aging decreases the cardiac tolerance to stress and increases susceptibility to ischemia, which caused by aging-induced Ca2+ transient impairment and metabolic dysfunction. The changes of contractility proteins and the relative molecules are in a non-linear fashion. Specifically, the expression and activation of cMLCK increase first then fall during ischemia and reperfusion (I/R). This change is responsible for the nonmonotonic contractility alteration in I/R which the underlying mechanism is still unclear. Contractility recovery in I/R is also attenuated by age. The age-related change in cardiac contractility influences the therapeutic effect and intervention timepoint. For most cardiac ischemia therapies, the therapeutic result in the elderly is not identical to the young. Anti-aging treatment has the potential to prevent the development of ischemic injury and improves cardiac function. In this review we discuss the mechanism underlying the contractility changes in the aged heart and age-induced ischemic injury. The potential mechanism underlying the increased susceptibility to ischemic injury in advanced age is highlighted. Furthermore, we discuss the effect of age and the administration time for intervention in cardiac ischemia therapies.
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Affiliation(s)
- Ming Dong
- Department of Pathophysiology, Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Guangdong, China
| | - Ziyi Yang
- Department of Pathophysiology, Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Guangdong, China
| | - Hongcheng Fang
- Shenzhen Shajing Hospital, Affiliated of Guangzhou Medical University, Shenzhen, Guangdong, China
| | - Jiaqing Xiang
- Department of Pathophysiology, Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Guangdong, China
| | - Cong Xu
- Department of Pathophysiology, Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Guangdong, China
| | - Yanqing Zhou
- Department of Pathophysiology, Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Guangdong, China
| | - Qianying Wu
- Department of Pathophysiology, Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Guangdong, China
| | - Jie Liu
- Department of Pathophysiology, Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Guangdong, China
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Wang Y, Sano S, Yura Y, Ke Z, Sano M, Oshima K, Ogawa H, Horitani K, Min KD, Miura-Yura E, Kour A, Evans MA, Zuriaga MA, Hirschi KK, Fuster JJ, Pietras EM, Walsh K. Tet2-mediated clonal hematopoiesis in nonconditioned mice accelerates age-associated cardiac dysfunction. JCI Insight 2020; 5:135204. [PMID: 32154790 PMCID: PMC7213793 DOI: 10.1172/jci.insight.135204] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 02/26/2020] [Indexed: 12/17/2022] Open
Abstract
Clonal hematopoiesis of indeterminate potential is prevalent in elderly individuals and associated with increased risks of all-cause mortality and cardiovascular disease. However, mouse models to study the dynamics of clonal hematopoiesis and its consequences on the cardiovascular system under homeostatic conditions are lacking. We developed a model of clonal hematopoiesis using adoptive transfer of unfractionated ten-eleven translocation 2-mutant (Tet2-mutant) bone marrow cells into nonirradiated mice. Consistent with age-related clonal hematopoiesis observed in humans, these mice displayed a progressive expansion of Tet2-deficient cells in multiple hematopoietic stem and progenitor cell fractions and blood cell lineages. The expansion of the Tet2-mutant fraction was also observed in bone marrow-derived CCR2+ myeloid cell populations within the heart, but there was a negligible impact on the yolk sac-derived CCR2- cardiac-resident macrophage population. Transcriptome profiling revealed an enhanced inflammatory signature in the donor-derived macrophages isolated from the heart. Mice receiving Tet2-deficient bone marrow cells spontaneously developed age-related cardiac dysfunction characterized by greater hypertrophy and fibrosis. Altogether, we show that Tet2-mediated hematopoiesis contributes to cardiac dysfunction in a nonconditioned setting that faithfully models human clonal hematopoiesis in unperturbed bone marrow. Our data support clinical findings that clonal hematopoiesis per se may contribute to diminished health span.
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Affiliation(s)
- Ying Wang
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Soichi Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Zhonghe Ke
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Miho Sano
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Kosei Oshima
- Molecular Cardiology/Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Hayato Ogawa
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Keita Horitani
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Kyung-Duk Min
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Emiri Miura-Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Anupreet Kour
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Megan A. Evans
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Maria A. Zuriaga
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Karen K. Hirschi
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Jose J. Fuster
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Eric M. Pietras
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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No MH, Heo JW, Yoo SZ, Kim CJ, Park DH, Kang JH, Seo DY, Han J, Kwak HB. Effects of aging and exercise training on mitochondrial function and apoptosis in the rat heart. Pflugers Arch 2020; 472:179-193. [PMID: 32048000 DOI: 10.1007/s00424-020-02357-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 01/18/2020] [Accepted: 02/04/2020] [Indexed: 12/13/2022]
Abstract
Aging is associated with vulnerability to cardiovascular diseases, and mitochondrial dysfunction plays a critical role in cardiovascular disease pathogenesis. Exercise training is associated with benefits against chronic cardiac diseases. The purpose of this study was to determine the effects of aging and treadmill exercise training on mitochondrial function and apoptosis in the rat heart. Fischer 344 rats were divided into young sedentary (YS; n = 10, 4 months), young exercise (YE; n = 10, 4 months), old sedentary (OS; n = 10, 20 months), and old exercise (OE; n = 10, 20 months) groups. Exercise training groups ran on a treadmill at 15 m/min (young) or 10 m/min (old), 45 min/day, 5 days/week for 8 weeks. Morphological parameters, mitochondrial function, mitochondrial dynamics, mitophagy, and mitochondria-mediated apoptosis were analyzed in cardiac muscle. Mitochondrial O2 respiratory capacity and Ca2+ retention capacity gradually decreased, and mitochondrial H2O2 emitting potential significantly increased with aging. Exercise training attenuated aging-induced mitochondrial H2O2 emitting potential and mitochondrial O2 respiratory capacity, while protecting Ca2+ retention in the old groups. Aging triggered imbalanced mitochondrial dynamics and excess mitophagy, while exercise training ameliorated the aging-induced imbalance in mitochondrial dynamics and excess mitophagy. Aging induced increase in Bax and cleaved caspase-3 protein levels, while decreasing Bcl-2 levels. Exercise training protected against the elevation of apoptotic signaling markers by decreasing Bax and cleaved caspase-3 and increasing Bcl-2 protein levels, while decreasing the Bax/Bcl-2 ratio and terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL)-positive myonuclei. These data demonstrate that regular exercise training prevents aging-induced impairment of mitochondrial function and mitochondria-mediated apoptosis in cardiac muscles.
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Affiliation(s)
- Mi-Hyun No
- Department of Kinesiology, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Jun-Won Heo
- Department of Kinesiology, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Su-Zi Yoo
- Department of Kinesiology, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Chang-Ju Kim
- Department of Physiology, Kyung Hee University, Seoul, South Korea
| | - Dong-Ho Park
- Department of Kinesiology, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Ju-Hee Kang
- Department of Pharmacology and Medicinal Toxicology Research Center, Inha University School of Medicine, Incheon, South Korea
| | - Dae-Yun Seo
- Department of Physiology and Cardiovascular and Metabolic Disease Center, Inje University School of Medicine, Busan, South Korea
| | - Jin Han
- Department of Physiology and Cardiovascular and Metabolic Disease Center, Inje University School of Medicine, Busan, South Korea
| | - Hyo-Bum Kwak
- Department of Kinesiology, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea.
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Grilo GA, Shaver PR, Stoffel HJ, Morrow CA, Johnson OT, Iyer RP, de Castro Brás LE. Age- and sex-dependent differences in extracellular matrix metabolism associate with cardiac functional and structural changes. J Mol Cell Cardiol 2020; 139:62-74. [PMID: 31978395 PMCID: PMC11017332 DOI: 10.1016/j.yjmcc.2020.01.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 12/19/2019] [Accepted: 01/10/2020] [Indexed: 01/08/2023]
Abstract
Age-related remodeling of the heart causes structural and functional changes in the left ventricle (LV) that are associated with a high index of morbidities and mortality worldwide. Some cardiac pathologies in the elderly population vary between genders revealing that cardiac remodeling during aging may be sex-dependent. Herein, we analyzed the effects of cardiac aging in male and female C57Bl/6 mice in four age groups, 3, 6, 12, and 18 month old (n = 6-12 animals/sex/age), to elucidate which age-related characteristics of LV remodeling are sex-specific. We focused particularly in parameters associated with age-dependent remodeling of the LV extracellular matrix (ECM) that are involved in collagen metabolism. LV function and anatomical structure were assessed both by conventional echocardiography and speckle tracking echocardiography (STE). We then measured ECM proteins that directly affect LV contractility and remodeling. All data were analyzed across ages and between sexes and were directly linked to LV functional changes. Echocardiography confirmed an age-dependent decrease in chamber volumes and LV internal diameters, indicative of concentric remodeling. As in humans, animals displayed preserved ejection fraction with age. Notably, changes to chamber dimensions and volumes were temporally distinct between sexes. Complementary to the traditional echocardiography, STE revealed that circumferential strain rate declined in 18 month old females, compared to younger animals, but not in males, suggesting STE as an earlier indicator for changes in cardiac function between sexes. Age-dependent collagen deposition and expression in the endocardium did not differ between sexes; however, other factors involved in collagen metabolism were sex-specific. Specifically, while decorin, osteopontin, Cthrc1, and Ddr1 expression were age-dependent but sex-independent, periostin, lysyl oxidase, and Mrc2 displayed age-dependent and sex-specific differences. Moreover, our data also suggest that with age males and females have distinct TGFβ signaling pathways. Overall, our results give evidence of sex-specific molecular changes during physiological cardiac remodeling that associate with age-dependent structural and functional dysfunction. These data highlight the importance of including sex-differences analysis when studying cardiac aging.
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Affiliation(s)
- Gabriel A Grilo
- Department of Physiology, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America
| | - Patti R Shaver
- Department of Physiology, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America
| | - Hamilton J Stoffel
- Department of Physiology, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America
| | - Caleb Anthony Morrow
- Department of Physiology, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America
| | - Octavious T Johnson
- Department of Physiology, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America
| | - Rugmani P Iyer
- Department of Physiology, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America
| | - Lisandra E de Castro Brás
- Department of Physiology, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America; Department of Cardiovascular Sciences, The Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States of America.
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122
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Li C, Mu N, Gu C, Liu M, Yang Z, Yin Y, Chen M, Wang Y, Han Y, Yu L, Ma H. Metformin mediates cardioprotection against aging-induced ischemic necroptosis. Aging Cell 2020; 19:e13096. [PMID: 31944526 PMCID: PMC6996959 DOI: 10.1111/acel.13096] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 10/23/2019] [Accepted: 12/08/2019] [Indexed: 12/13/2022] Open
Abstract
Necroptosis is crucially involved in severe cardiac pathological conditions. However, whether necroptosis contributes to age‐related intolerance to ischemia/reperfusion (I/R) injury remains elusive. In addition, metformin as a potential anti‐aging related injury drug, how it interacts with myocardial necroptosis is not yet clear. Male C57BL/6 mice at 3–4‐ (young) and 22–24 months of age (aged) and RIPK3‐deficient (Ripk3−/−) mice were used to investigate aging‐related I/R injury in vivo. Metformin (125 μg/kg, i.p.), necrostatin‐1 (3.5 mg/kg), and adenovirus vector encoding p62‐shRNAs (Ad‐sh‐p62) were used to treat aging mice. I/R‐induced myocardial necroptosis was exaggerated in aged mice, which correlated with autophagy defects characterized by p62 accumulation in aged hearts or aged human myocardium. Functionally, blocking autophagic flux promoted H/R‐evoked cardiomyocyte necroptosis in vitro. We further revealed that p62 forms a complex with RIP1‐RIP3 (necrosome) and promotes the binding of RIP1 and RIP3. In mice, necrostatin‐1 treatment (a RIP1 inhibitor), RIP3 deficiency, and cardiac p62 knockdown in vivo demonstrated that p62‐RIP1‐RIP3‐dependent myocardial necroptosis contributes to aging‐related myocardial vulnerability to I/R injury. Notably, metformin treatment disrupted p62‐RIP1‐RIP3 complexes and effectively repressed I/R‐induced necroptosis in aged hearts, ultimately reducing mortality in this model. These findings highlight previously unknown mechanisms of aging‐related myocardial ischemic vulnerability: p62‐necrosome‐dependent necroptosis. Metformin acts as a cardioprotective agent that inhibits this unfavorable chain mechanism of aging‐related I/R susceptibility.
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Affiliation(s)
- Chen Li
- Department of Physiology and Pathophysiology Fourth Military Medical University Xi'an China
| | - Nan Mu
- Department of Physiology and Pathophysiology Fourth Military Medical University Xi'an China
| | - Chunhu Gu
- Department of Cardiovascular Surgery Xijing Hospital Fourth Military Medical University Xi'an China
| | - Manling Liu
- Department of Physiology and Pathophysiology Fourth Military Medical University Xi'an China
| | - Zheng Yang
- Department of Physiology and Pathophysiology Fourth Military Medical University Xi'an China
| | - Yue Yin
- Department of Physiology and Pathophysiology Fourth Military Medical University Xi'an China
| | - Mai Chen
- Department of Cardiovascular Medicine Xijing Hospital Fourth Military Medical University Xi'an China
| | - Yishi Wang
- Department of Physiology and Pathophysiology Fourth Military Medical University Xi'an China
| | - Yuehu Han
- Department of Cardiovascular Surgery Xijing Hospital Fourth Military Medical University Xi'an China
| | - Lu Yu
- Department of Pathology Xijing Hospital Fourth Military Medical University Xi'an China
| | - Heng Ma
- Department of Physiology and Pathophysiology Fourth Military Medical University Xi'an China
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123
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Leitman M, Efrati S, Fuchs S, Hadanny A, Vered Z. The effect of hyperbaric oxygenation therapy on myocardial function. Int J Cardiovasc Imaging 2020; 36:833-840. [PMID: 31953651 DOI: 10.1007/s10554-020-01773-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 01/07/2020] [Indexed: 12/11/2022]
Abstract
Hyperbaric oxygenation therapy is successfully implemented for the treatment of several disorders. Data on the effect of hyperbaric oxygenation on echocardiographic parameters in asymptomatic patients is limited. The current study sought to evaluate the effect of hyperbaric oxygenation therapy on echocardiographic parameters in asymptomatic patients. Thirty-one consecutive patients underwent a 60-sessions course of hyperbaric oxygenation therapy in an attempt to improve cognitive impairment. In all subjects, echocardiography examination was performed before and after a course of hyperbaric oxygenation therapy. Conventional and speckle tracking imaging parameters were calculated and analyzed. The mean age was 70 ± 9.5 years, 28 [90%] were males. History of coronary artery disease was present in 12 [39%]. 94% suffered from hypertension, 42% had diabetes mellitus. Baseline wall motion abnormalities were found in eight patients, however, global ejection fraction was within normal limits. During the study, ejection fraction [EF], increased from 60.71 ± 6.02 to 62.29 ± 5.19%, p = 0.02. Left ventricular end systolic volume [LVESV], decreased from 38.08 ± 13.30 to 35.39 ± 13.32 ml, p = 0.01. Myocardial performance index [MPi] improved, from 0.29 ± 0.07 to 0.26 ± 0.08, p = 0.03. Left ventricular [LV] global longitudinal strain increased from - 19.31 ± 3.17% to - 20.16 ± 3.34%, p = 0.036 due to improvement in regional strain in the apical and antero-septal segments. Twist increased from 18.32 ± 6.61° to 23.12 ± 6.35° p = 0.01, due to improvement in the apical rotation, from 11.76 ± 4.40° to 16.10 ± 5.56°, p = 0.004. Hyperbaric oxygen therapy appears to improve left ventricular function, especially in the apical segments, and is associated with better cardiac performance. If our results are confirmed in further studies, HBOT can be used in many patients with heart failure and systolic dysfunction.
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Affiliation(s)
- Marina Leitman
- Department of Cardiology, Shamir Medical Center, Zerifin, Israel. .,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Shai Efrati
- Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Shmuel Fuchs
- Department of Cardiology, Shamir Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amir Hadanny
- Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Zvi Vered
- Department of Cardiology, Shamir Medical Center, Zerifin, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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124
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Staerk L, Preis SR, Lin H, Lubitz SA, Ellinor PT, Levy D, Benjamin EJ, Trinquart L. Protein Biomarkers and Risk of Atrial Fibrillation: The FHS. Circ Arrhythm Electrophysiol 2020; 13:e007607. [PMID: 31941368 DOI: 10.1161/circep.119.007607] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Identification of protein biomarkers associated with incident atrial fibrillation (AF) may improve the understanding of the pathophysiology, risk prediction, and development of new therapeutics for AF. We examined the associations between 85 protein biomarkers and incident AF. METHODS We included participants ≥50 years of age from the FHS (Framingham Heart Study) Offspring and Third Generation cohorts, who had 85 fasting plasma proteins measured using Luminex xMAP platform. Hazard ratios (per 1 SD increment of rank-normalized biomarker [hazard ratio]) and 95% CIs for incident AF were calculated using Cox regression models adjusted for age, sex, height, weight, current smoking, systolic blood pressure, diastolic blood pressure, hypertension treatment, diabetes mellitus, valvular heart disease, prevalent myocardial infarction, and prevalent heart failure. We used the false discovery rate to account for multiple testing. RESULTS The study sample comprised 3378 participants (54% women) with mean (SD) age of 61.5 (8.4) years. In total, 401 developed AF over a mean follow-up of 12.3±3.8 years. We observed lower hazard of incident AF associated with higher mean levels of IGF1 (insulin-like growth factor 1; hazard ratio per 1 SD increment in protein level, 0.84 [95% CI, 0.76-0.93]), and higher hazard of incident AF associated with higher mean levels of both IGFBP1 (insulin-like growth factor-binding protein 1; hazard ratio, 1.24 [95% CI, 1.1-1.39]) and NT-proBNP (N-terminal pro-B-type natriuretic peptide; hazard ratio, 1.73 [95% CI, 1.52-1.96]). CONCLUSIONS Decreased levels of IGF1 and increased levels of IGFBP1 and NT-proBNP were associated with higher risk of incident AF.
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Affiliation(s)
- Laila Staerk
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, MA (L.S., H.L., D.L., E.J.B., L.T.).,Department of Cardiology, Copenhagen University Hospital Herlev and Gentofte, Helleup, Denmark (L.S.)
| | - Sarah R Preis
- Department of Biostatistics (S.R.P., L.T.), Boston University School of Public Health, MA
| | - Honghuang Lin
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, MA (L.S., H.L., D.L., E.J.B., L.T.).,Section of Computational Biomedicine (H.L.), Department of Medicine, Boston University School of Medicine, MA
| | - Steven A Lubitz
- Cardiac Arrhythmia Service and Cardiovascular Research Center, Massachusetts General Hospital, Boston (S.A.L., P.T.E.)
| | - Patrick T Ellinor
- Cardiac Arrhythmia Service and Cardiovascular Research Center, Massachusetts General Hospital, Boston (S.A.L., P.T.E.)
| | - Daniel Levy
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, MA (L.S., H.L., D.L., E.J.B., L.T.)
| | - Emelia J Benjamin
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, MA (L.S., H.L., D.L., E.J.B., L.T.).,Department of Epidemiology (E.J.B.), Boston University School of Public Health, MA.,Cardiology and Preventive Medicine Sections (E.J.B.), Department of Medicine, Boston University School of Medicine, MA.,Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (E.J.B.)
| | - Ludovic Trinquart
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, MA (L.S., H.L., D.L., E.J.B., L.T.).,Department of Biostatistics (S.R.P., L.T.), Boston University School of Public Health, MA
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125
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Zhao C, Li G, Li J. Non-coding RNAs and Cardiac Aging. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1229:247-258. [PMID: 32285416 DOI: 10.1007/978-981-15-1671-9_14] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aging is an important risk factor for cardiovascular diseases. Aging increasing the morbidity and mortality in cardiovascular disease patients. With the society is aging rapidly in the world, medical burden of aging-related cardiovascular diseases increasing drastically. Hence, it is urgent to explore the underlying mechanism and treatment of cardiac aging. Noncoding RNAs (ncRNAs, including microRNAs, long noncoding RNAs and circular RNAs) have been reported to be involved in many pathological processes, including cell proliferation, cell death differentiation, hypertrophy and aging in wide variety of cells and tissues. In this chapter, we will summarize the physiology and molecular mechanisms of cardiac aging. Then, the recent research advances of ncRNAs in cardiac aging will be provided. The lessons learned from ncRNAs and cardiac aging studies would bring new insights into the regulatory mechanisms ncRNAs as well as treatment of aging-related cardiovascular diseases.
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Affiliation(s)
- Cuimei Zhao
- Department of Cardiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Guoping Li
- Cardiovascular Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jin Li
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, China.
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126
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Chang K, Kang P, Liu Y, Huang K, Miao T, Sagona AP, Nezis IP, Bodmer R, Ocorr K, Bai H. TGFB-INHB/activin signaling regulates age-dependent autophagy and cardiac health through inhibition of MTORC2. Autophagy 2019; 16:1807-1822. [PMID: 31884871 PMCID: PMC8386626 DOI: 10.1080/15548627.2019.1704117] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Age-related impairment of macroautophagy/autophagy and loss of cardiac tissue homeostasis contribute significantly to cardiovascular diseases later in life. MTOR (mechanistic target of rapamycin kinase) signaling is the most well-known regulator of autophagy, cellular homeostasis, and longevity. The MTOR signaling consists of two structurally and functionally distinct multiprotein complexes, MTORC1 and MTORC2. While MTORC1 is well characterized but the role of MTORC2 in aging and autophagy remains poorly understood. Here we identified TGFB-INHB/activin signaling as a novel upstream regulator of MTORC2 to control autophagy and cardiac health during aging. Using Drosophila heart as a model system, we show that cardiac-specific knockdown of TGFB-INHB/activin-like protein daw induces autophagy and alleviates age-related heart dysfunction, including cardiac arrhythmias and bradycardia. Interestingly, the downregulation of daw activates TORC2 signaling to regulate cardiac autophagy. Activation of TORC2 alone through overexpressing its subunit protein rictor promotes autophagic flux and preserves cardiac function with aging. In contrast, activation of TORC1 does not block autophagy induction in daw knockdown flies. Lastly, either daw knockdown or rictor overexpression in fly hearts prolongs lifespan, suggesting that manipulation of these pathways in the heart has systemic effects on longevity control. Thus, our studies discover the TGFB-INHB/activin-mediated inhibition of TORC2 as a novel mechanism for age-dependent decreases in autophagic activity and cardiac health. Abbreviations: AI: arrhythmia index; BafA1: bafilomycin A1; BMP: bone morphogenetic protein; CQ: chloroquine; CVD: cardiovascular diseases; DI: diastolic interval; ER: endoplasmic reticulum; HP: heart period; HR: heart rate; MTOR: mechanistic target of rapamycin kinase; NGS: normal goat serum; PBST: PBS with 0.1% Triton X-100; PDPK1: 3-phosphoinositide dependent protein kinase 1; RICTOR: RPTOR independent companion of MTOR complex 2; ROI: region of interest; ROUT: robust regression and outlier removal; ROS: reactive oxygen species; R-SMAD: receptor-activated SMAD; SI: systolic interval; SOHA: semi-automatic optical heartbeat analysis; TGFB: transformation growth factor beta; TSC1: TSC complex subunit 1.
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Affiliation(s)
- Kai Chang
- Department of Genetics, Development, and Cell Biology, Iowa State University , Ames, IA, USA
| | - Ping Kang
- Department of Genetics, Development, and Cell Biology, Iowa State University , Ames, IA, USA
| | - Ying Liu
- Department of Genetics, Development, and Cell Biology, Iowa State University , Ames, IA, USA
| | - Kerui Huang
- Department of Genetics, Development, and Cell Biology, Iowa State University , Ames, IA, USA
| | - Ting Miao
- Department of Genetics, Development, and Cell Biology, Iowa State University , Ames, IA, USA
| | | | - Ioannis P Nezis
- School of Life Sciences, University of Warwick , Coventry, UK
| | - Rolf Bodmer
- Development, Aging, and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute , La Jolla, CA, USA
| | - Karen Ocorr
- Development, Aging, and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute , La Jolla, CA, USA
| | - Hua Bai
- Department of Genetics, Development, and Cell Biology, Iowa State University , Ames, IA, USA
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127
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de Lucia C, Wallner M, Eaton DM, Zhao H, Houser SR, Koch WJ. Echocardiographic Strain Analysis for the Early Detection of Left Ventricular Systolic/Diastolic Dysfunction and Dyssynchrony in a Mouse Model of Physiological Aging. J Gerontol A Biol Sci Med Sci 2019; 74:455-461. [PMID: 29917053 PMCID: PMC6417453 DOI: 10.1093/gerona/gly139] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Indexed: 01/31/2023] Open
Abstract
Heart disease is the leading cause of hospitalization and death worldwide, severely affecting health care costs. Aging is a significant risk factor for heart disease, and the senescent heart is characterized by structural and functional changes including diastolic and systolic dysfunction as well as left ventricular (LV) dyssynchrony. Speckle tracking-based strain echocardiography (STE) has been shown as a noninvasive, reproducible, and highly sensitive methodology to evaluate LV function in both animal models and humans. Herein, we describe the efficiency of this technique as a comprehensive and sensitive method for the detection of age-related cardiac dysfunction in mice. Compared with conventional echocardiographic measurements, radial and longitudinal strain, and reverse longitudinal strain were able to detect subtle changes in systolic and diastolic cardiac function in mice at an earlier time point during aging. Additionally, the data show a gradual and consistent decrease with age in regional contractility throughout the entire LV, in both radial and longitudinal axes. Furthermore, we observed that LV segmental dyssynchrony in longitudinal axis reliably differentiated between aged and young mice. Therefore, we propose the use of echocardiographic strain as a highly sensitive and accurate technology enabling and evaluating the effect of new treatments to fight age-induced cardiac disease.
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Affiliation(s)
- Claudio de Lucia
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Markus Wallner
- Cardiovascular Research Center and Department of Physiology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania.,Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Deborah M Eaton
- Cardiovascular Research Center and Department of Physiology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Huaqing Zhao
- Department of Clinical Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Steven R Houser
- Cardiovascular Research Center and Department of Physiology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Walter J Koch
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
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128
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Inducible Cardiac-Specific Deletion of Sirt1 in Male Mice Reveals Progressive Cardiac Dysfunction and Sensitization of the Heart to Pressure Overload. Int J Mol Sci 2019; 20:ijms20205005. [PMID: 31658614 PMCID: PMC6834316 DOI: 10.3390/ijms20205005] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/04/2019] [Accepted: 10/08/2019] [Indexed: 01/01/2023] Open
Abstract
Heart failure is associated with profound alterations of energy metabolism thought to play a major role in the progression of this syndrome. SIRT1 is a metabolic sensor of cellular energy and exerts essential functions on energy metabolism, oxidative stress response, apoptosis, or aging. Importantly, SIRT1 deacetylates the peroxisome proliferator-activated receptor gamma co-activator 1α (PGC-1α), the master regulator of energy metabolism involved in mitochondrial biogenesis and fatty acid utilization. However, the exact role of SIRT1 in controlling cardiac energy metabolism is still incompletely understood and conflicting results have been obtained. We generated a cardio-specific inducible model of Sirt1 gene deletion in mice (Sirt1ciKO) to decipher the role of SIRT1 in control conditions and following cardiac stress induced by pressure overload. SIRT1 deficiency induced a progressive cardiac dysfunction, without overt alteration in mitochondrial content or properties. Sixteen weeks after Sirt1 deletion an increase in mitochondrial reactive oxygen species (ROS) production and a higher rate of oxidative damage were observed, suggesting disruption of the ROS production/detoxification balance. Following pressure overload, cardiac dysfunction and alteration in mitochondrial properties were exacerbated in Sirt1ciKO mice. Overall the results demonstrate that SIRT1 plays a cardioprotective role on cardiac energy metabolism and thereby on cardiac function.
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129
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Lin C, Chen S, Lien H, Lin S, Lee T. Targeting the PI3K/STAT3 axis modulates age-related differences in macrophage phenotype in rats with myocardial infarction. J Cell Mol Med 2019; 23:6378-6392. [PMID: 31313516 PMCID: PMC6714172 DOI: 10.1111/jcmm.14526] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/24/2019] [Accepted: 06/11/2019] [Indexed: 02/06/2023] Open
Abstract
Ageing is associated with impaired repair mechanisms in cardiovascular diseases. Macrophages contribute to cardiac fibrosis after myocardial infarction (MI). The phosphatidyl-inositol-3-kinase (PI3K) pathway has been shown to play a role in cardiac remodelling after MI. It remained unclear whether n-butylidenephthalide, a major component of Angelica sinensis, can attenuate cardiac fibrosis by regulating the PI3K/signal transducer and activator of transcription 3 (STAT3)-mediated macrophage phenotypes in ageing rats after MI. Twenty-four hours after ligation of the left anterior descending artery, young (2-month-old) and ageing (18-month-old) male Wistar rats were treated with either vehicle or n-butylidenephthalide for 4 weeks. There were similar infarct sizes in both age groups. Compared with young rats, ageing rats exhibited significant increased cardiac fibrosis after MI, which can be attenuated after administering n-butylidenephthalide. MI was associated with decreased activities of PI3K and STAT3 in ageing rats compared with young rats. In both age groups, n-butylidenephthalide effectively provided a significant increase of STAT3 phosphorylation, STAT3 activity, STAT3 nuclear translocation, myocardial IL-10 levels and the percentage of M2c macrophage and a decrease of myofibroblast infiltration. The effects of n-butylidenephthalide on increased IL-10 levels were reversed by LY294002 or S3I-201. Furthermore, LY294002 abolished the STAT3 phosphorylation, whereas PI3K activity was not affected following the inhibition of STAT3. In conclusions, the host environment is responsible for ageing-related myofibroblast dysregulation in response to MI which can be improved by administering n-butylidenephthalide via macrophage differentiation towards M2 phenotype by targeting the PI3K/STAT3 axis.
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Affiliation(s)
- Chih‐Chan Lin
- Department of Medical ResearchChi‐Mei Medical CenterTainanTaiwan
| | - Syue‐yi Chen
- Cardiovascular Institute, An Nan Hospital, China Medical UniversityTainanTaiwan
| | - Hsiao‐Yin Lien
- Department of pharmacyKaohsiung Veterans general hospital Tainan branchTainanTaiwan
| | - Shinn‐Zong Lin
- Bioinnovation Center, Tzu Chi foundationDepartment of NeurosurgeryBuddhist Tzu Chi General Hospital, Tzu Chi UniversityYunlinTaiwan
| | - Tsung‐Ming Lee
- Cardiovascular Institute, An Nan HospitalTainanTaiwan
- Department of MedicineChina Medical UniversityTaichungTaiwan
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130
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Cieslik KA, Sekhar RV, Granillo A, Reddy A, Medrano G, Heredia CP, Entman ML, Hamilton DJ, Li S, Reineke E, Gupte AA, Zhang A, Taffet GE. Improved Cardiovascular Function in Old Mice After N-Acetyl Cysteine and Glycine Supplemented Diet: Inflammation and Mitochondrial Factors. J Gerontol A Biol Sci Med Sci 2019. [PMID: 29538624 DOI: 10.1093/gerona/gly034] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Metabolic, inflammatory, and functional changes occur in cardiovascular aging which may stem from oxidative stress and be remediable with antioxidants. Glutathione, an intracellular antioxidant, declines with aging, and supplementation with glutathione precursors, N-acetyl cysteine (NAC) and glycine (Gly), increases tissue glutathione. Thirty-month old mice were fed diets supplemented with NAC or NAC+Gly and, after 7 weeks, cardiac function and molecular studies were performed. The NAC+Gly supplementation improved diastolic function, increasing peak early filling velocity, and reducing relaxation time, left atrial volume, and left ventricle end diastolic pressure. By contrast, cardiac function did not improve with NAC alone. Both diet supplementations decreased cardiac levels of inflammatory mediators; only NAC+Gly reduced leukocyte infiltration. Several mitochondrial genes reduced with aging were upregulated in hearts by NAC+Gly diet supplementation. These Krebs cycle and oxidative phosphorylation enzymes, suggesting improved mitochondrial function, and permeabilized cardiac fibers from NAC+Gly-fed mice produced ATP from carbohydrate and fatty acid sources, whereas fibers from control old mice were less able to utilize fatty acids. Our data indicate that NAC+Gly supplementation can improve diastolic function in the old mouse and may have potential to prevent important morbidities for older people.
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Affiliation(s)
- Katarzyna A Cieslik
- Division of Cardiovascular Sciences and the DeBakey Heart Center, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Rajagopal V Sekhar
- Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine, Houston, Texas
| | - Alejandro Granillo
- Division of Cardiovascular Sciences and the DeBakey Heart Center, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Anilkumar Reddy
- Division of Cardiovascular Sciences and the DeBakey Heart Center, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Indus Instruments, Webster, Texas
| | - Guillermo Medrano
- Division of Cardiovascular Sciences and the DeBakey Heart Center, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Celia Pena Heredia
- Division of Cardiovascular Sciences and the DeBakey Heart Center, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Mark L Entman
- Division of Cardiovascular Sciences and the DeBakey Heart Center, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Dale J Hamilton
- Department of Medicine, Houston Methodist, Texas.,Center for Bioenergetics, Houston Methodist Hospital Research Institute, Texas
| | - Shumin Li
- Center for Bioenergetics, Houston Methodist Hospital Research Institute, Texas
| | - Erin Reineke
- Center for Bioenergetics, Houston Methodist Hospital Research Institute, Texas
| | - Anisha A Gupte
- Department of Medicine, Houston Methodist, Texas.,Center for Bioenergetics, Houston Methodist Hospital Research Institute, Texas
| | - Aijun Zhang
- Department of Medicine, Houston Methodist, Texas.,Center for Bioenergetics, Houston Methodist Hospital Research Institute, Texas
| | - George E Taffet
- Division of Cardiovascular Sciences and the DeBakey Heart Center, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Department of Medicine, Houston Methodist, Texas.,Section of Geriatrics, Department of Medicine, Baylor College of Medicine, Houston, Texas
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131
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Cruz Junho CV, Trentin-Sonoda M, Alvim JM, Gaisler-Silva F, Carneiro-Ramos MS. Ca2+/Calmodulin-dependent kinase II delta B is essential for cardiomyocyte hypertrophy and complement gene expression after LPS and HSP60 stimulation in vitro. ACTA ACUST UNITED AC 2019; 52:e8732. [PMID: 31314855 PMCID: PMC6644523 DOI: 10.1590/1414-431x20198732] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 05/21/2019] [Indexed: 12/23/2022]
Abstract
Inflammation plays an important role in the development of cardiovascular diseases (CVDs), suggesting that the immune system is a target of therapeutic interventions used for treating CVDs. This study evaluated mechanisms underlying inflammatory response and cardiomyocyte hypertrophy associated with bacterial lipopolysaccharide (LPS)- or heat shock protein 60 (HSP60)-induced Toll-like receptor (TLR) stimulation and the effect of a small interfering RNA (siRNA) against Ca2+/calmodulin-dependent kinase II delta B (CaMKIIδB) on these outcomes. Our results showed that treatment with HSP60 or LPS (TLR agonists) induced cardiomyocyte hypertrophy and complement system C3 and factor B gene expression. In vitro silencing of CaMKIIδB prevented complement gene transcription and cardiomyocyte hypertrophy associated with TLR 2/4 activation but did not prevent the increase in interleukin-6 and tumor necrosis factor-alfa gene expression in primary cultured cardiomyocytes. Moreover, CaMKIIδB silencing attenuated nuclear factor-kappa B expression. These findings supported the hypothesis that CaMKIIδB acts as a link between inflammation and cardiac hypertrophy. Furthermore, the present study is the first to show that extracellular HSP60 activated complement gene expression through CaMKIIδB. Our results indicated that a stress stimulus induced by LPS or HSP60 treatment promoted cardiomyocyte hypertrophy and initiated an inflammatory response through the complement system. However, CaMKIIδB silencing prevented the cardiomyocyte hypertrophy independent of inflammatory response induced by LPS or HSP60 treatment.
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Affiliation(s)
- C V Cruz Junho
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| | - M Trentin-Sonoda
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil.,Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - J M Alvim
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil.,Laboratorio de Genética e Cardiologia Molecular, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - F Gaisler-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| | - M S Carneiro-Ramos
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
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132
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Sudi SB, Tanaka T, Oda S, Nishiyama K, Nishimura A, Sunggip C, Mangmool S, Numaga-Tomita T, Nishida M. TRPC3-Nox2 axis mediates nutritional deficiency-induced cardiomyocyte atrophy. Sci Rep 2019; 9:9785. [PMID: 31278358 PMCID: PMC6611789 DOI: 10.1038/s41598-019-46252-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/25/2019] [Indexed: 01/29/2023] Open
Abstract
Myocardial atrophy, characterized by the decreases in size and contractility of cardiomyocytes, is caused by severe malnutrition and/or mechanical unloading. Extracellular adenosine 5′-triphosphate (ATP), known as a danger signal, is recognized to negatively regulate cell volume. However, it is obscure whether extracellular ATP contributes to cardiomyocyte atrophy. Here, we report that ATP induces atrophy of neonatal rat cardiomyocytes (NRCMs) without cell death through P2Y2 receptors. ATP led to overproduction of reactive oxygen species (ROS) through increased amount of NADPH oxidase (Nox) 2 proteins, due to increased physical interaction between Nox2 and canonical transient receptor potential 3 (TRPC3). This ATP-mediated formation of TRPC3-Nox2 complex was also pathophysiologically involved in nutritional deficiency-induced NRCM atrophy. Strikingly, knockdown of either TRPC3 or Nox2 suppressed nutritional deficiency-induced ATP release, as well as ROS production and NRCM atrophy. Taken together, we propose that TRPC3-Nox2 axis, activated by extracellular ATP, is the key component that mediates nutritional deficiency-induced cardiomyocyte atrophy.
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Affiliation(s)
- Suhaini Binti Sudi
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan.,Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan.,Faculty of Medicine and Health Sciences, University Malaysia Sabah, Kota Kinabalu, 88400, Malaysia
| | - Tomohiro Tanaka
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan.,Center for Novel Science Initiatives (CNSI), National Institutes of Natural Sciences, Tokyo, 105-0001, Japan
| | - Sayaka Oda
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan.,Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan.,SOKENDAI (School of Life Science, The Graduate University for Advanced Studies), Okazaki, 444-8787, Japan
| | - Kazuhiro Nishiyama
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Akiyuki Nishimura
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Caroline Sunggip
- Faculty of Medicine and Health Sciences, University Malaysia Sabah, Kota Kinabalu, 88400, Malaysia
| | | | - Takuro Numaga-Tomita
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan.,Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan.,SOKENDAI (School of Life Science, The Graduate University for Advanced Studies), Okazaki, 444-8787, Japan
| | - Motohiro Nishida
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan. .,Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, 444-8787, Japan. .,Center for Novel Science Initiatives (CNSI), National Institutes of Natural Sciences, Tokyo, 105-0001, Japan. .,SOKENDAI (School of Life Science, The Graduate University for Advanced Studies), Okazaki, 444-8787, Japan. .,Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
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133
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Blice-Baum AC, Guida MC, Hartley PS, Adams PD, Bodmer R, Cammarato A. As time flies by: Investigating cardiac aging in the short-lived Drosophila model. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1831-1844. [PMID: 30496794 PMCID: PMC6527462 DOI: 10.1016/j.bbadis.2018.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/05/2018] [Accepted: 11/13/2018] [Indexed: 02/06/2023]
Abstract
Aging is associated with a decline in heart function across the tissue, cellular, and molecular levels. The risk of cardiovascular disease grows significantly over time, and as developed countries continue to see an increase in lifespan, the cost of cardiovascular healthcare for the elderly will undoubtedly rise. The molecular basis for cardiac function deterioration with age is multifaceted and not entirely clear, and there is a limit to what investigations can be performed on human subjects or mammalian models. Drosophila melanogaster has emerged as a useful model organism for studying aging in a short timeframe, benefitting from a suite of molecular and genetic tools and displaying highly conserved traits of cardiac senescence. Here, we discuss recent advances in our understanding of cardiac aging and how the fruit fly has aided in these developments.
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Affiliation(s)
| | - Maria Clara Guida
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA, USA.
| | - Paul S Hartley
- Bournemouth University, Department of Life and Environmental Science, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, UK.
| | - Peter D Adams
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA, USA.
| | - Rolf Bodmer
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA, USA.
| | - Anthony Cammarato
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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134
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Han C, Zhou J, Liu B, Liang C, Pan X, Zhang Y, Zhang Y, Wang Y, Shao L, Zhu B, Wang J, Yin Q, Yu XY, Li Y. Delivery of miR-675 by stem cell-derived exosomes encapsulated in silk fibroin hydrogel prevents aging-induced vascular dysfunction in mouse hindlimb. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:322-332. [DOI: 10.1016/j.msec.2019.01.122] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 01/25/2019] [Accepted: 01/26/2019] [Indexed: 01/10/2023]
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135
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Stem Cell-Derived Exosomes Prevent Aging-Induced Cardiac Dysfunction through a Novel Exosome/lncRNA MALAT1/NF- κB/TNF- α Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9739258. [PMID: 31089420 PMCID: PMC6476062 DOI: 10.1155/2019/9739258] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 12/12/2018] [Indexed: 12/22/2022]
Abstract
Aging is a risk factor for cardiovascular disease, and there is no effective therapeutic approach to alleviate this condition. NF-κB and TNF-α have been implicated in the activation of the aging process, but the signaling molecules responsible for the inactivation of NF-κB and TNF-α remain unknown. Exosomes have been reported to improve heart functions by releasing miRNA. Recent studies suggest that lncRNAs are more tissue-specific and developmental stage-specific compared to miRNA. However, the role of lncRNA in exosome-mediated cardiac repair has not been explored. In the present study, we focused on metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), which is an lncRNA associated with cell senescence. We discovered that human umbilical cord mesenchymal stem cell- (UMSC-) derived exosomes prevent aging-induced cardiac dysfunction. Silencer RNA against lncRNA MALAT1 blocked the beneficial effects of exosomes. In summary, we discovered that UMSC-derived exosomes prevent aging-induced cardiac dysfunction by releasing novel lncRNA MALAT1, which in turn inhibits the NF-κB/TNF-α signaling pathway. These findings will lead to the development of therapies that delay aging and progression of age-related diseases.
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136
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Chacar S, Hajal J, Saliba Y, Bois P, Louka N, Maroun RG, Faivre J, Fares N. Long-term intake of phenolic compounds attenuates age-related cardiac remodeling. Aging Cell 2019; 18:e12894. [PMID: 30680911 PMCID: PMC6413651 DOI: 10.1111/acel.12894] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 10/26/2018] [Accepted: 11/27/2018] [Indexed: 01/14/2023] Open
Abstract
With the onset of advanced age, cardiac-associated pathologies have increased in prevalence. The hallmarks of cardiac aging include cardiomyocyte senescence, fibroblast proliferation, inflammation, and hypertrophy. The imbalance between levels of reactive oxygen species (ROS) and antioxidant enzymes is greatly enhanced in aging cells, promoting cardiac remodeling. In this work, we studied the long-term impact of phenolic compounds (PC) on age-associated cardiac remodeling. Three-month-old Wistar rats were treated for 14 months till middle-age with either 2.5, 5, 10, or 20 mg kg-1 day-1 of PC. PC treatment showed a dose-dependent preservation of cardiac ejection fraction and fractional shortening as well as decreased hypertrophy reflected by left ventricular chamber diameter and posterior wall thickness as compared to untreated middle-aged control animals. Analyses of proteins from cardiac tissue showed that PC attenuated several hypertrophic pathways including calcineurin/nuclear factor of activated T cells (NFATc3), calcium/calmodulin-dependent kinase II (CAMKII), extracellular regulated kinase 1/2 (ERK1/2), and glycogen synthase kinase 3ß (GSK 3ß). PC-treated groups exhibited reduced plasma inflammatory and fibrotic markers and revealed as well ameliorated extracellular matrix remodeling and interstitial inflammation by a downregulated p38 pathway. Myocardia from PC-treated middle-aged rats presented less fibrosis with suppression of profibrotic transforming growth factor-ß1 (TGF-ß1) Smad pathway. Additionally, reduction of apoptosis and oxidative damage in the PC-treated groups was reflected by elevated antioxidant enzymes and reduced RNA/DNA damage markers. Our findings pinpoint that a daily consumption of phenolic compounds could preserve the heart from the detrimental effects of aging storm.
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Affiliation(s)
- Stéphanie Chacar
- Faculté de Médecine, Laboratoire de Recherche en Physiologie et Physiopathologie, LRPP, Pôle Technologie SantéUniversité Saint JosephBeyrouthLiban
- Faculté des Sciences, Centre d’Analyses et de Recherche, UR GPF, Laboratoire CTAUniversité Saint‐JosephBeyrouthLiban
- Laboratoire Signalisation et Transports Ioniques Membranaires (STIM)Université de PoitiersPoitiersFrance
| | - Joelle Hajal
- Faculté de Médecine, Laboratoire de Recherche en Physiologie et Physiopathologie, LRPP, Pôle Technologie SantéUniversité Saint JosephBeyrouthLiban
| | - Youakim Saliba
- Faculté de Médecine, Laboratoire de Recherche en Physiologie et Physiopathologie, LRPP, Pôle Technologie SantéUniversité Saint JosephBeyrouthLiban
| | - Patrick Bois
- Laboratoire Signalisation et Transports Ioniques Membranaires (STIM)Université de PoitiersPoitiersFrance
| | - Nicolas Louka
- Faculté des Sciences, Centre d’Analyses et de Recherche, UR GPF, Laboratoire CTAUniversité Saint‐JosephBeyrouthLiban
| | - Richard G. Maroun
- Faculté des Sciences, Centre d’Analyses et de Recherche, UR GPF, Laboratoire CTAUniversité Saint‐JosephBeyrouthLiban
| | - Jean‐François Faivre
- Laboratoire Signalisation et Transports Ioniques Membranaires (STIM)Université de PoitiersPoitiersFrance
| | - Nassim Fares
- Faculté de Médecine, Laboratoire de Recherche en Physiologie et Physiopathologie, LRPP, Pôle Technologie SantéUniversité Saint JosephBeyrouthLiban
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137
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Donelson J, Wang Q, Monroe TO, Jiang X, Zhou J, Yu H, Mo Q, Sun Q, Marini JC, Wang X, Nakata PA, Hirschi KD, Wang J, Rodney GG, Wehrens XH, Cheng N. Cardiac-specific ablation of glutaredoxin 3 leads to cardiac hypertrophy and heart failure. Physiol Rep 2019; 7:e14071. [PMID: 31033205 PMCID: PMC6487472 DOI: 10.14814/phy2.14071] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 01/08/2023] Open
Abstract
Growing evidence suggests that redox-sensitive proteins including glutaredoxins (Grxs) can protect cardiac muscle cells from oxidative stress-induced damage. Mammalian Grx3 has been shown to be critical in regulating cellular redox states. However, how Grx3 affects cardiac function by modulating reactive oxygen species (ROS) signaling remains unknown. In this study, we found that the expression of Grx3 in the heart is decreased during aging. To assess the physiological role of Grx3 in the heart, we generated mice in which Grx3 was conditionally deleted in cardiomyocytes (Grx3 conditional knockout (CKO) mice). Grx3 CKO mice were viable and grew indistinguishably from their littermates at young age. No difference in cardiac function was found comparing Grx3 CKO mice and littermate controls at this age. However, by the age of 12 months, Grx3 CKO mice exhibited left ventricular hypertrophy with a significant decrease in ejection fraction and fractional shortening along with a significant increase of ROS production in cardiomyocytes compared to controls. Deletion of Grx3 also impaired Ca2+ handling, caused enhanced sarcoplasmic reticulum (SR) calcium (Ca2+ ) leak, and decreased SR Ca2+ uptake. Furthermore, enhanced ROS production and alteration of Ca2+ handling in cardiomyocytes occurred, prior to cardiac dysfunction in young mice. Therefore, our findings demonstrate that Grx3 is an important factor in regulating cardiac hypertrophy and heart failure by modulating both cellular redox homeostasis and Ca2+ handling in the heart.
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Affiliation(s)
- Jimmonique Donelson
- USDA/ARS Children Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTexas
| | - Qiongling Wang
- Molecular Physiology & BiophysicsBaylor College of MedicineHoustonTexas
| | - Tanner O. Monroe
- Molecular Physiology & BiophysicsBaylor College of MedicineHoustonTexas
| | - Xiqian Jiang
- Pharmacology and Chemical BiologyBaylor College of MedicineHoustonTexas
- Molecular and Cellular BiologyBaylor College of MedicineHoustonTexas
| | - Jianjie Zhou
- Ministry of Education Key Laboratory of Protein ScienceCenter for Structural BiologySchool of Life SciencesTsinghua UniversityBeijingChina
| | - Han Yu
- USDA/ARS Children Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTexas
| | - Qianxing Mo
- Department of Biostatistics & BioinformaticsH. Lee Moffitt Cancer Center & Research InstituteTampaFlorida
| | - Qin Sun
- Molecular and Human GeneticsBaylor College of MedicineHoustonTexas
| | - Juan C. Marini
- USDA/ARS Children Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTexas
- Section of Critical Care MedicineDepartment of PediatricsBaylor College of MedicineHoustonTexas
| | - Xinquan Wang
- Ministry of Education Key Laboratory of Protein ScienceCenter for Structural BiologySchool of Life SciencesTsinghua UniversityBeijingChina
| | - Paul A. Nakata
- USDA/ARS Children Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTexas
| | - Kendal D. Hirschi
- USDA/ARS Children Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTexas
| | - Jin Wang
- Pharmacology and Chemical BiologyBaylor College of MedicineHoustonTexas
- Molecular and Cellular BiologyBaylor College of MedicineHoustonTexas
- Center for Drug DiscoveryDan L. Duncan Cancer CenterBaylor College of MedicineHoustonTexas
| | - George G. Rodney
- Molecular Physiology & BiophysicsBaylor College of MedicineHoustonTexas
| | - Xander H.T. Wehrens
- USDA/ARS Children Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTexas
- Molecular Physiology & BiophysicsBaylor College of MedicineHoustonTexas
- Cardiovascular Research InstituteBaylor College of MedicineHoustonTexas
| | - Ninghui Cheng
- USDA/ARS Children Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTexas
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138
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Ahuja G, Bartsch D, Yao W, Geissen S, Frank S, Aguirre A, Russ N, Messling JE, Dodzian J, Lagerborg KA, Vargas NE, Muck JS, Brodesser S, Baldus S, Sachinidis A, Hescheler J, Dieterich C, Trifunovic A, Papantonis A, Petrascheck M, Klinke A, Jain M, Valenzano DR, Kurian L. Loss of genomic integrity induced by lysosphingolipid imbalance drives ageing in the heart. EMBO Rep 2019; 20:embr.201847407. [PMID: 30886000 DOI: 10.15252/embr.201847407] [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: 11/14/2018] [Revised: 01/31/2019] [Accepted: 02/15/2019] [Indexed: 11/09/2022] Open
Abstract
Cardiac dysfunctions dramatically increase with age. Revealing a currently unknown contributor to cardiac ageing, we report the age-dependent, cardiac-specific accumulation of the lysosphingolipid sphinganine (dihydrosphingosine, DHS) as an evolutionarily conserved hallmark of the aged vertebrate heart. Mechanistically, the DHS-derivative sphinganine-1-phosphate (DHS1P) directly inhibits HDAC1, causing an aberrant elevation in histone acetylation and transcription levels, leading to DNA damage. Accordingly, the pharmacological interventions, preventing (i) the accumulation of DHS1P using SPHK2 inhibitors, (ii) the aberrant increase in histone acetylation using histone acetyltransferase (HAT) inhibitors, (iii) the DHS1P-dependent increase in transcription using an RNA polymerase II inhibitor, block DHS-induced DNA damage in human cardiomyocytes. Importantly, an increase in DHS levels in the hearts of healthy young adult mice leads to an impairment in cardiac functionality indicated by a significant reduction in left ventricular fractional shortening and ejection fraction, mimicking the functional deterioration of aged hearts. These molecular and functional defects can be partially prevented in vivo using HAT inhibitors. Together, we report an evolutionarily conserved mechanism by which increased DHS levels drive the decline in cardiac health.
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Affiliation(s)
- Gaurav Ahuja
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Max Planck Institute for Biology of Ageing, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Deniz Bartsch
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Wenjie Yao
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Simon Geissen
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Internal Medicine III, University of Cologne, Cologne, Germany
| | - Stefan Frank
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Aitor Aguirre
- Departments of Medicine & Pharmacology, University of California San Diego, San Diego, CA, USA
| | - Nicole Russ
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Jan-Erik Messling
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Joanna Dodzian
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Max Planck Institute for Biology of Ageing, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Kim A Lagerborg
- Departments of Medicine & Pharmacology, University of California San Diego, San Diego, CA, USA
| | - Natalia Emilse Vargas
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Joscha Sergej Muck
- Max Planck Institute for Biology of Ageing, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Susanne Brodesser
- CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Stephan Baldus
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Internal Medicine III, University of Cologne, Cologne, Germany
| | - Agapios Sachinidis
- Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Juergen Hescheler
- Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Christoph Dieterich
- Department of Internal Medicine III, University Hospital Heidelberg & German Center for Cardiovascular Research (DZHK), Heidelberg, Germany
| | - Aleksandra Trifunovic
- CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Argyris Papantonis
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | | | - Anna Klinke
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Internal Medicine III, University of Cologne, Cologne, Germany
| | - Mohit Jain
- Departments of Medicine & Pharmacology, University of California San Diego, San Diego, CA, USA
| | - Dario Riccardo Valenzano
- Max Planck Institute for Biology of Ageing, Cologne, Germany .,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Leo Kurian
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany .,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
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139
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Abstract
The objective of the present study is to evaluate the effect of epigallocatechin gallate (EGCG) on aging-mediated cardiac hypertrophy, fibrosis, and apoptosis. The Wistar albino rats were divided into 4 groups (n = 18). Group I: young (3 months), group II: aged (24-26 months), group III: aged + EGCG (200 mg/kg for 30 days), and group IV: young + EGCG. At the end of 30 days, EGCG administration to the aged animals showed significant (P < 0.001) reduction of low-density lipoprotein, very low-density lipoprotein, triglyceride, total cholesterol with concomitant increase of high-density lipoprotein (P < 0.001) when compared with aged rats. Increased (P < 0.001) heart volume, weight with concomitant increase of left ventricular wall thickness, and reduced ventricular cavity were observed in aged rats supplemented with EGCG compared with aged animals. Histology and histomorphometry study of aged animals treated with EGCG showed marked increases in the diameter and volume of cardiomyocytes with concomitant reduction of numerical density when compared with aged animals. Reduced reactive oxygen species (P < 0.001) production with association of increased antioxidant defense system (P < 0.001) in aged hearts supplemented with EGCG when compared with aged animals. TUNEL staining and fibrosis showed a marked increase in apoptotic cell death (P < 0.001) and collagen deposition (P < 0.001) in aged animals treated with EGCG when compared with aged animals. Aged animals treated with EGCG showed a marked increase in protein expression of TGFβ, TNFα, and nuclear factor kappa B (NF-κB) and significant (P < 0.001) alteration in the gene expression of TGFβ, TNFα, NF-κB, α-SMA, and Nrf2 when compared with aged animals. Taken together, it is evident that EGCG may potentially inhibit aging-induced cardiac hypertrophy, fibrosis, and apoptosis, thereby preserving cardiac function. The proposed mechanism would be inhibition of reactive oxygen species-dependent activation of TGFβ1, TNFα, and NF-κB signaling pathway. Hence, the present study suggests that EGCG can be useful to fight against aging-induced cardiac hypertrophy, fibrosis, and apoptosis.
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140
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Altered gene expression pattern indicates the differential regulation of the immune response system as an important factor in cardiac aging. Exp Gerontol 2019; 117:13-20. [DOI: 10.1016/j.exger.2018.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/04/2018] [Accepted: 05/02/2018] [Indexed: 12/28/2022]
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141
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Anderson R, Lagnado A, Maggiorani D, Walaszczyk A, Dookun E, Chapman J, Birch J, Salmonowicz H, Ogrodnik M, Jurk D, Proctor C, Correia-Melo C, Victorelli S, Fielder E, Berlinguer-Palmini R, Owens A, Greaves LC, Kolsky KL, Parini A, Douin-Echinard V, LeBrasseur NK, Arthur HM, Tual-Chalot S, Schafer MJ, Roos CM, Miller JD, Robertson N, Mann J, Adams PD, Tchkonia T, Kirkland JL, Mialet-Perez J, Richardson GD, Passos JF. Length-independent telomere damage drives post-mitotic cardiomyocyte senescence. EMBO J 2019; 38:embj.2018100492. [PMID: 30737259 PMCID: PMC6396144 DOI: 10.15252/embj.2018100492] [Citation(s) in RCA: 302] [Impact Index Per Article: 60.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 12/18/2018] [Accepted: 01/02/2019] [Indexed: 01/08/2023] Open
Abstract
Ageing is the biggest risk factor for cardiovascular disease. Cellular senescence, a process driven in part by telomere shortening, has been implicated in age‐related tissue dysfunction. Here, we address the question of how senescence is induced in rarely dividing/post‐mitotic cardiomyocytes and investigate whether clearance of senescent cells attenuates age‐related cardiac dysfunction. During ageing, human and murine cardiomyocytes acquire a senescent‐like phenotype characterised by persistent DNA damage at telomere regions that can be driven by mitochondrial dysfunction and crucially can occur independently of cell division and telomere length. Length‐independent telomere damage in cardiomyocytes activates the classical senescence‐inducing pathways, p21CIP and p16INK4a, and results in a non‐canonical senescence‐associated secretory phenotype, which is pro‐fibrotic and pro‐hypertrophic. Pharmacological or genetic clearance of senescent cells in mice alleviates detrimental features of cardiac ageing, including myocardial hypertrophy and fibrosis. Our data describe a mechanism by which senescence can occur and contribute to age‐related myocardial dysfunction and in the wider setting to ageing in post‐mitotic tissues.
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Affiliation(s)
- Rhys Anderson
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Anthony Lagnado
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Damien Maggiorani
- INSERM Institute of metabolic and cardiovascular diseases, University of Toulouse, Toulouse, France
| | - Anna Walaszczyk
- Cardiovascular Research Centre, Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Emily Dookun
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK.,Cardiovascular Research Centre, Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - James Chapman
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Jodie Birch
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Hanna Salmonowicz
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Mikolaj Ogrodnik
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Diana Jurk
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK.,Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Carole Proctor
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Clara Correia-Melo
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Stella Victorelli
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Edward Fielder
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | | | - Andrew Owens
- Cardiovascular Research Centre, Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Laura C Greaves
- Wellcome Trust Centre for Mitochondrial Research, Centre for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Kathy L Kolsky
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Angelo Parini
- INSERM Institute of metabolic and cardiovascular diseases, University of Toulouse, Toulouse, France
| | - Victorine Douin-Echinard
- INSERM Institute of metabolic and cardiovascular diseases, University of Toulouse, Toulouse, France
| | | | - Helen M Arthur
- Cardiovascular Research Centre, Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Simon Tual-Chalot
- Cardiovascular Research Centre, Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Marissa J Schafer
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Carolyn M Roos
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Jordan D Miller
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Neil Robertson
- Institute of Cancer Sciences, CR-UK Beatson Institute, University of Glasgow, Glasgow, UK
| | - Jelena Mann
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Peter D Adams
- Institute of Cancer Sciences, CR-UK Beatson Institute, University of Glasgow, Glasgow, UK.,Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Tamara Tchkonia
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - James L Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Jeanne Mialet-Perez
- INSERM Institute of metabolic and cardiovascular diseases, University of Toulouse, Toulouse, France
| | - Gavin D Richardson
- Cardiovascular Research Centre, Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - João F Passos
- Ageing Research Laboratories, Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK .,Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK.,Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
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142
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Adult Cardiac Stem Cell Aging: A Reversible Stochastic Phenomenon? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5813147. [PMID: 30881594 PMCID: PMC6383393 DOI: 10.1155/2019/5813147] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 11/08/2018] [Indexed: 12/17/2022]
Abstract
Aging is by far the dominant risk factor for the development of cardiovascular diseases, whose prevalence dramatically increases with increasing age reaching epidemic proportions. In the elderly, pathologic cellular and molecular changes in cardiac tissue homeostasis and response to injury result in progressive deteriorations in the structure and function of the heart. Although the phenotypes of cardiac aging have been the subject of intense study, the recent discovery that cardiac homeostasis during mammalian lifespan is maintained and regulated by regenerative events associated with endogenous cardiac stem cell (CSC) activation has produced a crucial reconsideration of the biology of the adult and aged mammalian myocardium. The classical notion of the adult heart as a static organ, in terms of cell turnover and renewal, has now been replaced by a dynamic model in which cardiac cells continuously die and are then replaced by CSC progeny differentiation. However, CSCs are not immortal. They undergo cellular senescence characterized by increased ROS production and oxidative stress and loss of telomere/telomerase integrity in response to a variety of physiological and pathological demands with aging. Nevertheless, the old myocardium preserves an endogenous functionally competent CSC cohort which appears to be resistant to the senescent phenotype occurring with aging. The latter envisions the phenomenon of CSC ageing as a result of a stochastic and therefore reversible cell autonomous process. However, CSC aging could be a programmed cell cycle-dependent process, which affects all or most of the endogenous CSC population. The latter would infer that the loss of CSC regenerative capacity with aging is an inevitable phenomenon that cannot be rescued by stimulating their growth, which would only speed their progressive exhaustion. The resolution of these two biological views will be crucial to design and develop effective CSC-based interventions to counteract cardiac aging not only improving health span of the elderly but also extending lifespan by delaying cardiovascular disease-related deaths.
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143
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de Boer RA, De Keulenaer G, Bauersachs J, Brutsaert D, Cleland JG, Diez J, Du XJ, Ford P, Heinzel FR, Lipson KE, McDonagh T, Lopez-Andres N, Lunde IG, Lyon AR, Pollesello P, Prasad SK, Tocchetti CG, Mayr M, Sluijter JPG, Thum T, Tschöpe C, Zannad F, Zimmermann WH, Ruschitzka F, Filippatos G, Lindsey ML, Maack C, Heymans S. Towards better definition, quantification and treatment of fibrosis in heart failure. A scientific roadmap by the Committee of Translational Research of the Heart Failure Association (HFA) of the European Society of Cardiology. Eur J Heart Fail 2019; 21:272-285. [PMID: 30714667 PMCID: PMC6607480 DOI: 10.1002/ejhf.1406] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/28/2018] [Accepted: 12/03/2018] [Indexed: 12/19/2022] Open
Abstract
Fibrosis is a pivotal player in heart failure development and progression. Measurements of (markers of) fibrosis in tissue and blood may help to diagnose and risk stratify patients with heart failure, and its treatment may be effective in preventing heart failure and its progression. A lack of pathophysiological insights and uniform definitions has hampered the research in fibrosis and heart failure. The Translational Research Committee of the Heart Failure Association discussed several aspects of fibrosis in their workshop. Early insidious perturbations such as subclinical hypertension or inflammation may trigger first fibrotic events, while more dramatic triggers such as myocardial infarction and myocarditis give rise to full blown scar formation and ongoing fibrosis in diseased hearts. Aging itself is also associated with a cardiac phenotype that includes fibrosis. Fibrosis is an extremely heterogeneous phenomenon, as several stages of the fibrotic process exist, each with different fibrosis subtypes and a different composition of various cells and proteins — resulting in a very complex pathophysiology. As a result, detection of fibrosis, e.g. using current cardiac imaging modalities or plasma biomarkers, will detect only specific subforms of fibrosis, but cannot capture all aspects of the complex fibrotic process. Furthermore, several anti‐fibrotic therapies are under investigation, but such therapies generally target aspecific aspects of the fibrotic process and suffer from a lack of precision. This review discusses the mechanisms and the caveats and proposes a roadmap for future research.
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Affiliation(s)
- Rudolf A de Boer
- University Medical Center Groningen, University of Groningen, Department of Cardiology, Groningen, The Netherlands
| | | | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Dirk Brutsaert
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - John G Cleland
- Robertson Centre for Biostatistics & Clinical Trials, University of Glasgow, Glasgow, UK
| | - Javier Diez
- Program of Cardiovascular Diseases, Center for Applied Medical Research, Departments of Nephrology, and Cardiology and Cardiac Surgery, University Clinic, University of Navarra, Pamplona, Spain
| | - Xiao-Jun Du
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | | | - Frank R Heinzel
- Department of Cardiology, Campus Virchow-Klinikum, Charite Universitaetsmedizin Berlin, Berlin, Germany
| | | | | | - Natalia Lopez-Andres
- Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Publica de Navarra, Idisna, Spain
| | - Ida G Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Alexander R Lyon
- Royal Brompton Hospital, and Imperial College London, London, UK
| | | | | | - Carlo G Tocchetti
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Manuel Mayr
- The James Black Centre, King's College, University of London, London, UK
| | - Joost P G Sluijter
- University Medical Centre Utrecht, Experimental Cardiology Laboratory, UMC Utrecht Regenerative Medicine Center, University Utrecht, Utrecht, The Netherlands
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.,REBIRTH Excellence Cluster, Hannover Medical School, Hannover, Germany.,DZHK (German Center for Cardiovascular Research) partner site Berlin, Berlin, Germany
| | - Carsten Tschöpe
- Department of Cardiology, Campus Virchow-Klinikum, Charite Universitaetsmedizin Berlin, Berlin, Germany
| | - Faiez Zannad
- Centre d'Investigation Clinique, CHU de Nancy, Nancy, France
| | - Wolfram-Hubertus Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) partner site Göttingen, Göttingen, Germany
| | - Frank Ruschitzka
- Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland
| | - Gerasimos Filippatos
- Heart Failure Unit, Department of Cardiology, School of Medicine, Athens University Hospital Attikon, National and Kapodistrian University of Athens, Athens, Greece
| | - Merry L Lindsey
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center and Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center, Jackson, MS, USA
| | - Christoph Maack
- Comprehensive Heart Failure Centre, University and University Hospital Würzburg, Würzburg, Germany
| | - Stephane Heymans
- Department of Cardiology, CARIM School for Cardiovascular Diseases Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Department of Cardiovascular Sciences, Centre for Molecular and Vascular Biology, KU Leuven, Leuven, Belgium.,The Netherlands Heart Institute, Nl-HI, Utrecht, The Netherlands
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144
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Abstract
There has been an increasing interest in studying cardiac fibers in order to improve the current knowledge regarding the mechanical and physiological properties of the heart during heart failure (HF), particularly early HF. Having a thorough understanding of the changes in cardiac fiber orientation may provide new insight into the mechanisms behind the progression of left ventricular (LV) remodeling and HF. We conducted a systematic review on various technologies for imaging cardiac fibers and its link to HF. This review covers literature reports from 1900 to 2017. PubMed and Google Scholar databases were searched using the keywords "cardiac fiber" and "heart failure" or "myofiber" and "heart failure." This review highlights imaging methodologies, including magnetic resonance diffusion tensor imaging (MR-DTI), ultrasound, and other imaging technologies as well as their potential applications in basic and translational research on the development and progression of HF. MR-DTI and ultrasound have been most useful and significant in evaluating cardiac fibers and HF. New imaging technologies that have the ability to measure cardiac fiber orientations and identify structural and functional information of the heart will advance basic research and clinical diagnoses of HF.
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Affiliation(s)
- Shana R Watson
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - James D Dormer
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Baowei Fei
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA. .,Winship Cancer Institute of Emory University, Atlanta, GA, USA. .,Department of Mathematics and Computer Science, Emory University, Atlanta, GA, USA. .,Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, Atlanta, GA, USA. .,Quantitative Bioimaging Laboratory, Department of Radiology and Imaging Sciences, School of Medicine, Emory University, Atlanta, United States.
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145
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Carvalho RC, Vigário PDS, Chachamovitz DSDO, Silvestre DHDS, Silva PRDO, Vaisman M, Teixeira PDFDS. Heart rate response to graded exercise test of elderly subjects in different ranges of TSH levels. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2019; 62:591-596. [PMID: 30624498 PMCID: PMC10118665 DOI: 10.20945/2359-3997000000083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 09/25/2018] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Life expectancy is increasing worldwide and studies have been demonstrating that elevated serum thyroid stimulating hormone (TSH) concentration in elderly is associated with some better health outcomes. This elevation is somewhat physiological as aging. The aim of this study was to investigate the heart rate (HR) response during a graded exercise test and its recovery in healthy elderly, comparing subjects within serum TSH in the lower limit of reference range to those within the TSH in the upper limit. SUBJECTS AND METHODS A cross-sectional study was conducted with 86 healthy elderly aged 71.5 ± 5.1 years, with serum TSH between 0.4 - 4.0 mUl/mL. The participants were divided into two groups according to TSH level: < 1.0 mUl/mL (n = 13) and ≥ 1.0 µUI/mL (n = 73). All participants performed an ergometric test on a treadmill. The HR was recorded and analyzed at rest, during exercise and during the three minutes immediately after exercise. RESULTS No differences were observed in relation to HR at peak of exercise (TSH < 1.0 µUI/mL: 133.9 ± 22.5 bpm vs. TSH ≥ 1.0 µUI/mL: 132.4 ± 21.3 bpm; p = 0.70) and during the first minute of recovery phase (TSH < 1.0 µUI/mL: 122.3 ± 23.1 bpm vs. TSH ≥ 1.0 µUI/mL: 115.7 ± 18.4 bpm p = 0.33). The groups also presented similar chronotropic index (TSH < 1.0 µUI/mL: 78.1 ± 30.6 vs. TSH ≥ 1.0 µUI/mL: 79.5 ± 26.4; p = 0.74). CONCLUSION In this sample studied, there were no difference between lower and upper TSH level concerning HR response during rest, peak of exercise and exercise recovery.
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Affiliation(s)
- Rafael Cavalcante Carvalho
- Laboratório de Ergoespirometria e Cineantropometria, Escola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brasil
| | - Patrícia Dos Santos Vigário
- Programa de Pós-Graduação em Ciências da Reabilitação, Centro Universitário Augusto Motta (UNISUAM), Rio de Janeiro, RJ, Brasil
| | | | - Diego Henrique da Silva Silvestre
- Laboratório de Ergoespirometria e Cineantropometria, Escola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brasil
| | - Pablo Rodrigo de Oliveira Silva
- Programa de Pós-Graduação em Ciências da Reabilitação, Centro Universitário Augusto Motta (UNISUAM), Rio de Janeiro, RJ, Brasil
| | - Mario Vaisman
- Serviço de Endocrinologia, Hospital Universitário Clementino Fraga Filho (HUCFF), Rio de Janeiro, RJ, Brasil
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146
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Toba H, Lindsey ML. Extracellular matrix roles in cardiorenal fibrosis: Potential therapeutic targets for CVD and CKD in the elderly. Pharmacol Ther 2019; 193:99-120. [PMID: 30149103 PMCID: PMC6309764 DOI: 10.1016/j.pharmthera.2018.08.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Whereas hypertension, diabetes, and dyslipidemia are age-related risk factors for cardiovascular disease (CVD) and chronic kidney disease (CKD), aging alone is an independent risk factor. With advancing age, the heart and kidney gradually but significantly undergo inflammation and subsequent fibrosis, which eventually results in an irreversible decline in organ physiology. Through cardiorenal network interactions, cardiac dysfunction leads to and responds to renal injury, and both facilitate aging effects. Thus, a comprehensive strategy is needed to evaluate the cardiorenal aging network. Common hallmarks shared across systems include extracellular matrix (ECM) accumulation, along with upregulation of matrix metalloproteinases (MMPs) including MMP-9. The wide range of MMP-9 substrates, including ECM components and inflammatory cytokines, implicates MMP-9 in a variety of pathological and age-related processes. In particular, there is strong evidence that inflammatory cell-derived MMP-9 exacerbates cardiorenal aging. This review explores the potential therapeutic targets against CVD and CKD in the elderly, focusing on ECM and MMP roles.
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Affiliation(s)
- Hiroe Toba
- Department of Clinical Pharmacology, Division of Pathological Sciences, Kyoto Pharmaceutical University, Kyoto, Japan.
| | - Merry L Lindsey
- Mississippi Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, and Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center, Jackson, MS, USA.
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147
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Valdés Á, Treuer AV, Barrios G, Ponce N, Fuentealba R, Dulce RA, González DR. NOX Inhibition Improves β-Adrenergic Stimulated Contractility and Intracellular Calcium Handling in the Aged Rat Heart. Int J Mol Sci 2018; 19:ijms19082404. [PMID: 30111689 PMCID: PMC6121436 DOI: 10.3390/ijms19082404] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/28/2018] [Accepted: 08/01/2018] [Indexed: 12/26/2022] Open
Abstract
Cardiac aging is characterized by alterations in contractility and intracellular calcium ([Ca2+]i) homeostasis. It has been suggested that oxidative stress may be involved in this process. We and others have reported that in cardiomyopathies the NADPH oxidase (NOX)-derived superoxide is increased, with a negative impact on [Ca2+]i and contractility. We tested the hypothesis that in the aged heart, [Ca2+]i handling and contractility are disturbed by NOX-derived superoxide. For this we used adults (≈5 month-old) and aged (20–24 month-old) rats. Contractility was evaluated in isolated hearts, challenged with isoproterenol. To assess [Ca2+]i, isolated cardiac myocytes were field-stimulated and [Ca2+]i was monitored with fura-2. Cardiac concentration-response to isoproterenol was depressed in aged compared to adults hearts (p < 0.005), but was restored by NOX inhibitors apocynin and VAS2870. In isolated cardiomyocytes, apocynin increased the amplitude of [Ca2+]i in aged myocytes (p < 0.05). Time-50 [Ca2+]i decay was increased in aged myocytes (p < 0.05) and reduced towards normal by NOX inhibition. In addition, we found that myofilaments Ca2+ sensitivity was reduced in aged myocytes (p < 0.05), and was further reduced by apocynin. NOX2 expression along with NADPH oxidase activity was increased in aged hearts. Phospholamban phosphorylation (Ser16/Thr17) after isoproterenol treatment was reduced in aged hearts compared to adults and was restored by apocynin treatment (p < 0.05). In conclusion, β-adrenergic-induced contractility was depressed in aged hearts, and NOX inhibition restored back to normal. Moreover, altered Ca2+ handling in aged myocytes was also improved by NOX inhibition. These results suggest a NOX-dependent effect in aged myocytes at the level of Ca2+ handling proteins and myofilaments.
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Affiliation(s)
- Álvaro Valdés
- Departamento de Ciencias Básicas Biomédicas, Facultad Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile.
| | - Adriana V Treuer
- Departamento de Ciencias Básicas Biomédicas, Facultad Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile.
| | - Guillermo Barrios
- Departamento de Ciencias Básicas Biomédicas, Facultad Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile.
| | - Nikol Ponce
- Departamento de Ciencias Básicas Biomédicas, Facultad Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile.
| | - Roberto Fuentealba
- Departamento de Ciencias Básicas Biomédicas, Facultad Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile.
| | - Raul A Dulce
- Interdisciplinary Stem Cell Institute, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
| | - Daniel R González
- Departamento de Ciencias Básicas Biomédicas, Facultad Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile.
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148
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Abstract
Heart failure (HF) has become increasingly common within the elderly population, decreasing their survival and overall quality of life. In fact, despite the improvements in treatment, many elderly people suffer from cardiac dysfunction (HF, valvular diseases, arrhythmias or hypertension-induced cardiac hypertrophy) that are much more common in an older fragile heart. Since β-adrenergic receptor (β-AR) signaling is abnormal in failing as well as aged hearts, this pathway is an effective diagnostic and therapeutic target. Both HF and aging are characterized by activation/hyperactivity of various neurohormonal pathways, the most important of which is the sympathetic nervous system (SNS). SNS hyperactivity is initially a compensatory mechanism to stimulate contractility and maintain cardiac output. Unfortunately, this chronic stimulation becomes detrimental and causes decreased cardiac function as well as reduced inotropic reserve due to a decrease in cardiac β-ARs responsiveness. Therapies which (e.g., β-blockers and physical activity) restore β-ARs responsiveness can ameliorate cardiac performance and outcomes during HF, particularly in older patients. In this review, we will discuss physiological β-adrenergic signaling and its alterations in both HF and aging as well as the potential clinical application of targeting β-adrenergic signaling in these disease processes.
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149
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de Lucia C, Eguchi A, Koch WJ. New Insights in Cardiac β-Adrenergic Signaling During Heart Failure and Aging. Front Pharmacol 2018; 9:904. [PMID: 30147654 PMCID: PMC6095970 DOI: 10.3389/fphar.2018.00904] [Citation(s) in RCA: 184] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 07/24/2018] [Indexed: 12/13/2022] Open
Abstract
Heart failure (HF) has become increasingly common within the elderly population, decreasing their survival and overall quality of life. In fact, despite the improvements in treatment, many elderly people suffer from cardiac dysfunction (HF, valvular diseases, arrhythmias or hypertension-induced cardiac hypertrophy) that are much more common in an older fragile heart. Since β-adrenergic receptor (β-AR) signaling is abnormal in failing as well as aged hearts, this pathway is an effective diagnostic and therapeutic target. Both HF and aging are characterized by activation/hyperactivity of various neurohormonal pathways, the most important of which is the sympathetic nervous system (SNS). SNS hyperactivity is initially a compensatory mechanism to stimulate contractility and maintain cardiac output. Unfortunately, this chronic stimulation becomes detrimental and causes decreased cardiac function as well as reduced inotropic reserve due to a decrease in cardiac β-ARs responsiveness. Therapies which (e.g., β-blockers and physical activity) restore β-ARs responsiveness can ameliorate cardiac performance and outcomes during HF, particularly in older patients. In this review, we will discuss physiological β-adrenergic signaling and its alterations in both HF and aging as well as the potential clinical application of targeting β-adrenergic signaling in these disease processes.
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Affiliation(s)
| | | | - Walter J. Koch
- Department of Pharmacology – Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
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150
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Carreira PE, Carmona L, Joven BE, Loza E, Andréu JL, Riemekasten G, Vettori S, Balbir-Gurman A, Airò P, Walker U, Damjanov N, Matucci-Cerinic M, Ananieva LP, Rednic S, Czirják L, Distler O, Farge D, Hesselstrand R, Corrado A, Caramaschi P, Tikly M, Allanore Y. Differences associated with age at onset in early systemic sclerosis patients: a report from the EULAR Scleroderma Trials and Research Group (EUSTAR) database. Scand J Rheumatol 2018; 48:42-51. [DOI: 10.1080/03009742.2018.1459830] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- PE Carreira
- Rheumatology Department, University Hospital 12 de Octubre, Madrid, Spain
| | - L Carmona
- Musculoskeletal Health Institute, Madrid, Spain
| | - BE Joven
- Rheumatology Department, University Hospital 12 de Octubre, Madrid, Spain
| | - E Loza
- Musculoskeletal Health Institute, Madrid, Spain
| | - JL Andréu
- Rheumatology Department, University Hospital Puerta de Hierro, Madrid, Spain
| | - G Riemekasten
- Department of Rheumatology, University of Lübeck, Lübeck, Germany
| | - S Vettori
- Rheumatology Unit, Department of Internal Medicine Clinical and Experimental ‘F Magrassi-A-Lanzara’, Second University of Naples, Naples, Italy
| | - A Balbir-Gurman
- B Shine Rheumatology Unit, Rambam Health Care Campus and Rappaport Faculty of Medicine-Technion, Haifa, Israel
| | - P Airò
- Rheumatology and Clinical Immunology Unit, Civil Hospitali, Brescia, Italy
| | - U Walker
- Rheumatology Department, Felix Platter Hospital, Basel, Switzerland
| | - N Damjanov
- University of Belgrade School of Medicine, Belgrade, Serbia
| | - M Matucci-Cerinic
- Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
| | - LP Ananieva
- Institute of Rheumatology, Russian Academy of Medical Science, Moscow, Russia
| | - S Rednic
- Rheumatology Clinic, University of Medicine and Pharmacy ‘Iuliu Hatieganu’ Cluj, Cluj-Napoca, Romania
| | - L Czirják
- Department of Immunology and Rheumatology, Faculty of Medicine, University of Pécs, Pécs, Hungary
| | - O Distler
- Division of Rheumatology, University Hospital Zürich, Zürich, Switzerland
| | - D Farge
- Department of Internal Medicine, Saint-Louis Hospital, Paris, France
| | - R Hesselstrand
- Department of Rheumatology, Lund University Hospital, Lund, Sweden
| | - A Corrado
- Rheumatology Unit, University of Foggia, ‘Col. D’Avanzo’ Hospital, Foggia, Italy
| | | | - M Tikly
- Rheumatology Unit, Department of Medicine, Chris Hani Baragwanath Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Y Allanore
- Rheumatology A Department, Cochin Hospital, APHP, Paris Descartes University, Paris, France
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