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Wang P, Konja D, Singh S, Zhang B, Wang Y. Endothelial Senescence: From Macro- to Micro-Vasculature and Its Implications on Cardiovascular Health. Int J Mol Sci 2024; 25:1978. [PMID: 38396653 PMCID: PMC10889199 DOI: 10.3390/ijms25041978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/02/2024] [Accepted: 02/03/2024] [Indexed: 02/25/2024] Open
Abstract
Endothelial cells line at the most inner layer of blood vessels. They act to control hemostasis, arterial tone/reactivity, wound healing, tissue oxygen, and nutrient supply. With age, endothelial cells become senescent, characterized by reduced regeneration capacity, inflammation, and abnormal secretory profile. Endothelial senescence represents one of the earliest features of arterial ageing and contributes to many age-related diseases. Compared to those in arteries and veins, endothelial cells of the microcirculation exhibit a greater extent of heterogeneity. Microcirculatory endothelial senescence leads to a declined capillary density, reduced angiogenic potentials, decreased blood flow, impaired barrier properties, and hypoperfusion in a tissue or organ-dependent manner. The heterogeneous phenotypes of microvascular endothelial cells in a particular vascular bed and across different tissues remain largely unknown. Accordingly, the mechanisms underlying macro- and micro-vascular endothelial senescence vary in different pathophysiological conditions, thus offering specific target(s) for therapeutic development of senolytic drugs.
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Affiliation(s)
- Peichun Wang
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR, China; (P.W.); (D.K.); (S.S.); (B.Z.)
- Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Daniels Konja
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR, China; (P.W.); (D.K.); (S.S.); (B.Z.)
- Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Sandeep Singh
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR, China; (P.W.); (D.K.); (S.S.); (B.Z.)
- Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Beijia Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR, China; (P.W.); (D.K.); (S.S.); (B.Z.)
- Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Yu Wang
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR, China; (P.W.); (D.K.); (S.S.); (B.Z.)
- Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
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2
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Rasouli M, Naeimzadeh Y, Hashemi N, Hosseinzadeh S. Age-Related Alterations in Mesenchymal Stem Cell Function: Understanding Mechanisms and Seeking Opportunities to Bypass the Cellular Aging. Curr Stem Cell Res Ther 2024; 19:15-32. [PMID: 36642876 DOI: 10.2174/1574888x18666230113144016] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/28/2022] [Accepted: 11/23/2022] [Indexed: 01/17/2023]
Abstract
Undoubtedly, mesenchymal stem cells (MSCs) are the most common cell therapy candidates in clinical research and therapy. They not only exert considerable therapeutic effects to alleviate inflammation and promote regeneration, but also show low-immunogenicity properties, which ensure their safety following allogeneic transplantation. Thanks to the necessity of providing a sufficient number of MSCs to achieve clinically efficient outcomes, prolonged in vitro cultivation is indisputable. However, either following long-term in vitro expansion or aging in elderly individuals, MSCs face cellular senescence. Senescent MSCs undergo an impairment in their function and therapeutic capacities and secrete degenerative factors which negatively affect young MSCs. To this end, designing novel investigations to further elucidate cellular senescence and to pave the way toward finding new strategies to reverse senescence is highly demanded. In this review, we will concisely discuss current progress on the detailed mechanisms of MSC senescence and various inflicted changes following aging in MSC. We will also shed light on the examined strategies underlying monitoring and reversing senescence in MSCs to bypass the comprised therapeutic efficacy of the senescent MSCs.
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Affiliation(s)
- Mehdi Rasouli
- Department of Tissue Engineering and Applied Cell Science, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yasaman Naeimzadeh
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nader Hashemi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simzar Hosseinzadeh
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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3
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Metabolic landscape in cardiac aging: insights into molecular biology and therapeutic implications. Signal Transduct Target Ther 2023; 8:114. [PMID: 36918543 PMCID: PMC10015017 DOI: 10.1038/s41392-023-01378-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 02/06/2023] [Accepted: 02/20/2023] [Indexed: 03/16/2023] Open
Abstract
Cardiac aging is evident by a reduction in function which subsequently contributes to heart failure. The metabolic microenvironment has been identified as a hallmark of malignancy, but recent studies have shed light on its role in cardiovascular diseases (CVDs). Various metabolic pathways in cardiomyocytes and noncardiomyocytes determine cellular senescence in the aging heart. Metabolic alteration is a common process throughout cardiac degeneration. Importantly, the involvement of cellular senescence in cardiac injuries, including heart failure and myocardial ischemia and infarction, has been reported. However, metabolic complexity among human aging hearts hinders the development of strategies that targets metabolic susceptibility. Advances over the past decade have linked cellular senescence and function with their metabolic reprogramming pathway in cardiac aging, including autophagy, oxidative stress, epigenetic modifications, chronic inflammation, and myocyte systolic phenotype regulation. In addition, metabolic status is involved in crucial aspects of myocardial biology, from fibrosis to hypertrophy and chronic inflammation. However, further elucidation of the metabolism involvement in cardiac degeneration is still needed. Thus, deciphering the mechanisms underlying how metabolic reprogramming impacts cardiac aging is thought to contribute to the novel interventions to protect or even restore cardiac function in aging hearts. Here, we summarize emerging concepts about metabolic landscapes of cardiac aging, with specific focuses on why metabolic profile alters during cardiac degeneration and how we could utilize the current knowledge to improve the management of cardiac aging.
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Li J, Feng Y, Zhao J, Fang Z, Liu H. Telomerase reverse transcriptase promotes angiogenesis in neonatal rats after hypoxic-ischemic brain damage. PeerJ 2022; 10:e14220. [PMID: 36299510 PMCID: PMC9590416 DOI: 10.7717/peerj.14220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/20/2022] [Indexed: 01/24/2023] Open
Abstract
Background Angiogenesis is an endogenous repair mechanism following hypoxic-ischemic brain damage (HIBD). Interestingly, recent studies have shown that angiogenesis can be regulated by telomerase reverse transcriptase (TERT), a critical component of telomerase. As telomerase reverse transcriptase can promote angiogenesis after stroke, we hypothesized that it could also promote angiogenesis after HIBD. To test this hypothesis, we developed in vivo and in vitro HIBD models in neonatal rats. Methods TERT was overexpressed by lentivirus and adenovirus infection, and levels were measured using quantitative real-time polymerase chain reaction. We used a cell counting kit to quantify the proliferation rate of brain microvascular endothelial cells (BMECs), and immunofluorescence staining to measure CD34 expression levels. A microvessel formation assay was used to evaluate angiogenesis. Blood-brain barrier (BBB) integrity was assessed using immunohistochemical staining for ZO-1 and Evans Blue staining. Lastly, the expression level of Notch-1 was measured by western blotting. Results Overexpression of TERT promoted the proliferation of BMECs after hypoxic-ischemic damage in vitro. TERT overexpression increased the formation of microvessels in the neonatal brain after HIBD both in vivo and in vitro. Overexpression of TERT improved BBB integrity in the brains of neonatal rats after HIBD. In addition, the expression level of Notch-1 was increased in BMECs following oxygen glucose deprivation, and overexpression of TERT further increased Notch-1 expression levels in BMECs following oxygen glucose deprivation. Discussion Our results reveal that telomerase reverse transcriptase promotes angiogenesis and maintains the integrity of the blood-brain barrier after neonatal hypoxic-ischemic brain damage. Furthermore, the Notch-1 signaling pathway appears to contribute to the angiogenic function of telomerase reverse transcriptase. This protective effect of telomerase reverse transcriptase opens new horizons for future investigations aimed at uncovering the full potential of telomerase reverse transcriptase as a promising new target for the treatment of hypoxic-ischemic encephalopathy.
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Affiliation(s)
- Jiao Li
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yi Feng
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jing Zhao
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Zhi Fang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Haiting Liu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
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5
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Affiliation(s)
- Rosalinda Madonna
- Cardiology Division, University of Pisa, Pisa, Italy.,Department of Internal Medicine, McGovern School of Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
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6
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Harada M, Hu B, Lu J, Wang J, Rinke AE, Wu Z, Liu T, Phan SH. The dual distinct role of telomerase in repression of senescence and myofibroblast differentiation. Aging (Albany NY) 2021; 13:16957-16973. [PMID: 34253690 PMCID: PMC8312426 DOI: 10.18632/aging.203246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/04/2021] [Indexed: 12/13/2022]
Abstract
Many aging related diseases such as cancer implicate the myofibroblast in disease progression. Furthermore genesis of the myofibroblast is associated with manifestation of cellular senescence of unclear significance. In this study we investigated the role of a common regulator, namely telomerase reverse transcriptase (TERT), in order to evaluate the potential significance of this association between both processes. We analyzed the effects of TERT overexpression or deficiency on expression of CDKN2A and ACTA2 as indicators of senescence and differentiation, respectively. We assess binding of TERT or YB-1, a repressor of both genes, to their promoters. TERT repressed both CDKN2A and ACTA2 expression, and abolished stress-induced expression of both genes. Conversely, TERT deficiency enhanced their expression. Altering CDKN2A expression had no effect on ACTA2 expression. Both TERT and YB-1 were shown to bind the CDKN2A promoter but only YB-1 was shown to bind the ACTA2 promoter. TERT overexpression inhibited CDKN2A promoter activity while stimulating YB-1 expression and activation to repress ACTA2 gene. TERT repressed myofibroblast differentiation and senescence via distinct mechanisms. The latter was associated with TERT binding to the CDKN2A promoter, but not to the ACTA2 promoter, which may require interaction with co-factors such as YB-1.
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Affiliation(s)
- Masanori Harada
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.,Department of Respiratory Medicine, Fujieda Municipal General Hospital, Fujieda, Japan
| | - Biao Hu
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jeffrey Lu
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jing Wang
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.,Xinjiang Key Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Andrew E Rinke
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Zhe Wu
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tianju Liu
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Sem H Phan
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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Chen L, Luo G, Liu Y, Lin H, Zheng C, Xie D, Zhu Y, Chen L, Huang X, Hu D, Xie J, Chen Z, Liao W, Bin J, Wang Q, Liao Y. Growth differentiation factor 11 attenuates cardiac ischemia reperfusion injury via enhancing mitochondrial biogenesis and telomerase activity. Cell Death Dis 2021; 12:665. [PMID: 34215721 PMCID: PMC8253774 DOI: 10.1038/s41419-021-03954-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 12/28/2022]
Abstract
It has been reported that growth differentiation factor 11 (GDF11) protects against myocardial ischemia/reperfusion (IR) injury, but the underlying mechanisms have not been fully clarified. Considering that GDF11 plays a role in the aging/rejuvenation process and that aging is associated with telomere shortening and cardiac dysfunction, we hypothesized that GDF11 might protect against IR injury by activating telomerase. Human plasma GDF11 levels were significantly lower in acute coronary syndrome patients than in chronic coronary syndrome patients. IR mice with myocardial overexpression GDF11 (oe-GDF11) exhibited a significantly smaller myocardial infarct size, less cardiac remodeling and dysfunction, fewer apoptotic cardiomyocytes, higher telomerase activity, longer telomeres, and higher ATP generation than IR mice treated with an adenovirus carrying a negative control plasmid. Furthermore, mitochondrial biogenesis-related proteins and some antiapoptotic proteins were significantly upregulated by oe-GDF11. These cardioprotective effects of oe-GDF11 were significantly antagonized by BIBR1532, a specific telomerase inhibitor. Similar effects of oe-GDF11 on apoptosis and mitochondrial energy biogenesis were observed in cultured neonatal rat cardiomyocytes, whereas GDF11 silencing elicited the opposite effects to oe-GDF11 in mice. We concluded that telomerase activation by GDF11 contributes to the alleviation of myocardial IR injury through enhancing mitochondrial biogenesis and suppressing cardiomyocyte apoptosis.
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MESH Headings
- Aminobenzoates/pharmacology
- Animals
- Apoptosis
- Bone Morphogenetic Proteins/genetics
- Bone Morphogenetic Proteins/metabolism
- Case-Control Studies
- Cells, Cultured
- Disease Models, Animal
- Enzyme Inhibitors/pharmacology
- Growth Differentiation Factors/genetics
- Growth Differentiation Factors/metabolism
- Humans
- Male
- Mice, Inbred C57BL
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/enzymology
- Mitochondria, Heart/genetics
- Mitochondria, Heart/pathology
- Myocardial Infarction/enzymology
- Myocardial Infarction/genetics
- Myocardial Infarction/pathology
- Myocardial Infarction/prevention & control
- Myocardial Reperfusion Injury/enzymology
- Myocardial Reperfusion Injury/genetics
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- Naphthalenes/pharmacology
- Organelle Biogenesis
- Rats
- Signal Transduction
- Telomerase/antagonists & inhibitors
- Telomerase/metabolism
- Mice
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Affiliation(s)
- Lin Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Guangjin Luo
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yameng Liu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Hairuo Lin
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Cankun Zheng
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Dongxiao Xie
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yingqi Zhu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Lu Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xiaoxia Huang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Donghong Hu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jiahe Xie
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhenhuan Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wangjun Liao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Jianping Bin
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qiancheng Wang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Yulin Liao
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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Madonna R, Guarnieri S, Kovácsházi C, Görbe A, Giricz Z, Geng YJ, Mariggiò MA, Ferdinandy P, De Caterina R. Telomerase/myocardin expressing mesenchymal cells induce survival and cardiovascular markers in cardiac stromal cells undergoing ischaemia/reperfusion. J Cell Mol Med 2021; 25:5381-5390. [PMID: 33949765 PMCID: PMC8184669 DOI: 10.1111/jcmm.16549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/19/2021] [Accepted: 03/31/2021] [Indexed: 12/17/2022] Open
Abstract
Cardiac stromal cells (CSCs) contain a pool of cells with supportive and paracrine functions. Various types of mesenchymal stromal cells (MSCs) can influence CSCs in the cardiac niche through their paracrine activity. Ischaemia/reperfusion (I/R) leads to cell death and reduction of the paracrine activity of CSCs. The forced co‐expression of telomerase reverse transcriptase (TERT) and myocardin (MYOCD), known to potentiate anti‐apoptotic, pro‐survival and pro‐angiogenic activities of MSCs isolated from the adipose tissue (AT‐MSCs), may increase CSC survival, favouring their paracrine activities. We aimed at investigating the hypothesis that CSCs feature improved resistance to simulated I/R (SI/R) and increased commitment towards the cardiovascular lineage when preconditioned with conditioned media (CM) or extracellular vesicles (EV) released from AT‐MSCs overexpressing TERT and MYOCD (T/M AT‐MSCs). Murine CSCs were isolated with the cardiosphere (CSps) isolation technique. T/M AT‐MSCs and their secretome improved spontaneous intracellular calcium changes and ryanodine receptor expression in aged CSps. The cytoprotective effect of AT‐MSCs was tested in CSCs subjected to SI/R. SI/R induced cell death as compared to normoxia (28 ± 4 vs 10 ± 3%, P = .02). Pre‐treatment with CM (15 ± 2, P = .02) or with the EV‐enriched fraction (10 ± 1%, P = .02) obtained from mock‐transduced AT‐MSCs in normoxia reduced cell death after SI/R. The effect was more pronounced with CM (7 ± 1%, P = .01) or the EV‐enriched fraction (2 ± 1%, P = .01) obtained from T/M AT‐MSCs subjected to SI/R. In parallel, we observed lower expression of the apoptosis marker cleaved caspase‐3 and higher expression of cardiac and vascular markers eNOS, sarcomeric α‐actinin and cardiac actin. The T/M AT‐MSCs secretome exerts a cytoprotective effect and promotes development of CSCs undergoing SI/R towards a cardiovascular phenotype.
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Affiliation(s)
- Rosalinda Madonna
- Department of Internal Medicine, McGovern School of Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA.,Department of Pathology, Cardiology Division, University of Pisa, Pisa, Italy
| | - Simone Guarnieri
- Center for Advanced Studies and Technology -CAST, Chieti-Pescara, Chieti, Italy.,Department of Neuroscience, Imaging and Clinical Sciences, Chieti-Pescara and StemTeCh Group, "G. d'Annunzio" University, Chieti, Italy
| | - Csenger Kovácsházi
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Aniko Görbe
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Zoltán Giricz
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - Yong-Jian Geng
- Department of Internal Medicine, McGovern School of Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Maria Addolorata Mariggiò
- Center for Advanced Studies and Technology -CAST, Chieti-Pescara, Chieti, Italy.,Department of Neuroscience, Imaging and Clinical Sciences, Chieti-Pescara and StemTeCh Group, "G. d'Annunzio" University, Chieti, Italy
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary
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9
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Kalstad AA, Myhre PL, Laake K, Opstad TB, Tveit A, Solheim S, Arnesen H, Seljeflot I. Biomarkers of ageing and cardiac remodeling are associated with atrial fibrillation. SCAND CARDIOVASC J 2021; 55:213-219. [PMID: 33650449 DOI: 10.1080/14017431.2021.1889653] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Objectives. Ageing is one of the strongest risk factors for atrial fibrillation (AF), and additional risk factors are also closely related to ageing. Remodeling is part of the pathophysiology of AF, and a possible common denominator of ageing and other AF risk factors. The aim of this study was to investigate any association between the presence of AF and the ageing biomarkers, leukocyte telomere length (LTL) and sirtuin-1 (SIRT-1), and the cardiac remodeling biomarkers Galectin-3 and sST2 in elderly myocardial infarction (MI) patients. Design. Patients were included after admission for MI. Diagnosis of AF was retrieved from medical records and classified as either history of AF before MI or new onset from admission to study inclusion. SIRT-1, sST2 and Galectin-3 were analyzed by ELISAs and LTL by qPCR. Results. In total, 299 patients were included, median age 75 years, 70.2% male. A history of AF was recorded in 38 patients and 30 patients experienced new onset AF. Higher levels of SIRT-1 were associated with lower risk of having a history of AF (OR = 0.46 (95% CI 0.26, 0.81), p = 0.007), whereas higher sST2 levels were associated with higher risk of AF (OR = 4.13 (95% CI 1.69, 10.13), p = 0.002). Results remained significant after adjustment for other AF risk factors. No significant associations with AF were found for Galectin-3 or LTL. None of the biomarkers associated with new onset AF. Conclusion. In elderly patients with MI, higher ST2 and lower SIRT-2 levels were associated with higher prevalence of AF, possibly reflecting both ageing and the remodeling phenomena in AF. Clinical trials registration: ClinicalTrials.gov (NCT01841944).
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Affiliation(s)
- Are A Kalstad
- Department of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway.,Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Peder L Myhre
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Division of Medicine, Department of Cardiology, Akershus University Hospital, Lørenskog, Norway
| | - Kristian Laake
- Department of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway
| | - Trine B Opstad
- Department of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway.,Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Arnljot Tveit
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Medical Research, Vestre Viken Hospital Trust, Baerum Hospital, Gjettum, Norway
| | - Svein Solheim
- Department of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway
| | - Harald Arnesen
- Department of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway.,Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Ingebjørg Seljeflot
- Department of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway.,Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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10
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Madonna R, Pieragostino D, Rossi C, Guarnieri S, Nagy CT, Giricz Z, Ferdinandy P, Del Boccio P, Mariggiò MA, Geng YJ, De Caterina R. Transplantation of telomerase/myocardin-co-expressing mesenchymal cells in the mouse promotes myocardial revascularization and tissue repair. Vascul Pharmacol 2020; 135:106807. [PMID: 33130246 DOI: 10.1016/j.vph.2020.106807] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 10/26/2020] [Indexed: 12/17/2022]
Abstract
AIM Cell therapies are hampered by poor survival and growth of grafts. We tested whether forced co-expression of telomerase reverse transcriptase (TERT) and myocardin (MYOCD) improves post-infarct revascularization and tissue repair by adipose tissue-derived mesenchymal stromal cells (AT-MSCs). METHODS AND RESULTS We transplanted AT-MSCs overexpressing MYOCD and TERT in a murine model of acute myocardial infarction (AMI). We characterized paracrine effects of AT-MSCs. When transplanted into infarcted hearts of C57BL/6 mice, AT-MSCs overexpressing TERT and MYOCD decreased scar tissue and the intra-scar CD3 and B220 lymphocyte infiltration; and increased arteriolar density as well as ejection fraction compared with saline or mock-transduced AT-MSCs. These effects were accompanied by higher persistence of the injected cells in the heart, increased numbers of Ki-67+ and CD117+ cells, and the expression of cardiac actin and β-myosin heavy chain. Intramyocardial delivery of the secretome and its extracellular vesicle (EV)-enriched fraction also decreased scar tissue formation and increased arteriolar density in the murine AMI model. Proteomic analysis of AT-MSCs-EV-enriched fraction predicted the activation of vascular development and the inhibition of immune cell trafficking. Elevated concentrations of miR-320a, miR-150-5p and miR-126-3p associated with regulation of apoptosis and vasculogenesis were confirmed in the AT-MSCs-EV-enriched fraction. CONCLUSIONS AT-MSCs overexpressing TERT and MYOCD promote persistence of transplanted aged AT-MSCs and enhance arteriolar density in a murine model of AMI. EV-enriched fraction is the component of the paracrine secretion by AT-MSCs with pro-angiogenic and anti-fibrotic activities.
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Affiliation(s)
- Rosalinda Madonna
- Department of Internal Medicine, McGovern School of Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America; Chair of Cardiology, Department of Surgical, Medical and Molecular Pathology, University of Pisa, Pisa, Italy.
| | - Damiana Pieragostino
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Claudia Rossi
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Simone Guarnieri
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Department of Neuroscience, Imaging and Clinical Sciences, "G. d'Annunzio" University, Chieti-Pescara and StemTeCh Group, Chieti, Italy
| | - Csilla T Nagy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Zoltán Giricz
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Piero Del Boccio
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Maria Addolorata Mariggiò
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Department of Neuroscience, Imaging and Clinical Sciences, "G. d'Annunzio" University, Chieti-Pescara and StemTeCh Group, Chieti, Italy
| | - Yong-Jian Geng
- Department of Internal Medicine, McGovern School of Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America
| | - Raffaele De Caterina
- Chair of Cardiology, Department of Surgical, Medical and Molecular Pathology, University of Pisa, Pisa, Italy
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11
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Jiang P, Chamberlain CS, Vanderby R, Thomson JA, Stewart R. TimeMeter assesses temporal gene expression similarity and identifies differentially progressing genes. Nucleic Acids Res 2020; 48:e51. [PMID: 32123905 PMCID: PMC7229845 DOI: 10.1093/nar/gkaa142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 02/03/2020] [Accepted: 02/26/2020] [Indexed: 01/02/2023] Open
Abstract
Comparative time series transcriptome analysis is a powerful tool to study development, evolution, aging, disease progression and cancer prognosis. We develop TimeMeter, a statistical method and tool to assess temporal gene expression similarity, and identify differentially progressing genes where one pattern is more temporally advanced than the other. We apply TimeMeter to several datasets, and show that TimeMeter is capable of characterizing complicated temporal gene expression associations. Interestingly, we find: (i) the measurement of differential progression provides a novel feature in addition to pattern similarity that can characterize early developmental divergence between two species; (ii) genes exhibiting similar temporal patterns between human and mouse during neural differentiation are under strong negative (purifying) selection during evolution; (iii) analysis of genes with similar temporal patterns in mouse digit regeneration and axolotl blastema differentiation reveals common gene groups for appendage regeneration with potential implications in regenerative medicine.
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Affiliation(s)
- Peng Jiang
- Regenerative Biology Laboratory, Morgridge Institute for Research, Madison, WI 53707, USA
| | - Connie S Chamberlain
- Department of Orthopedics and Rehabilitation, University of Wisconsin, Madison, WI 53706, USA
| | - Ray Vanderby
- Department of Orthopedics and Rehabilitation, University of Wisconsin, Madison, WI 53706, USA.,Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706, USA
| | - James A Thomson
- Regenerative Biology Laboratory, Morgridge Institute for Research, Madison, WI 53707, USA.,Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Ron Stewart
- Regenerative Biology Laboratory, Morgridge Institute for Research, Madison, WI 53707, USA
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12
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Bradfield A, Button L, Drury J, Green DC, Hill CJ, Hapangama DK. Investigating the Role of Telomere and Telomerase Associated Genes and Proteins in Endometrial Cancer. Methods Protoc 2020; 3:E63. [PMID: 32899298 PMCID: PMC7565490 DOI: 10.3390/mps3030063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/24/2020] [Accepted: 08/30/2020] [Indexed: 12/16/2022] Open
Abstract
Endometrial cancer (EC) is the commonest gynaecological malignancy. Current prognostic markers are inadequate to accurately predict patient survival, necessitating novel prognostic markers, to improve treatment strategies. Telomerase has a unique role within the endometrium, whilst aberrant telomerase activity is a hallmark of many cancers. The aim of the current in silico study is to investigate the role of telomere and telomerase associated genes and proteins (TTAGPs) in EC to identify potential prognostic markers and therapeutic targets. Analysis of RNA-seq data from The Cancer Genome Atlas identified differentially expressed genes (DEGs) in EC (568 TTAGPs out of 3467) and ascertained DEGs associated with histological subtypes, higher grade endometrioid tumours and late stage EC. Functional analysis demonstrated that DEGs were predominantly involved in cell cycle regulation, while the survival analysis identified 69 DEGs associated with prognosis. The protein-protein interaction network constructed facilitated the identification of hub genes, enriched transcription factor binding sites and drugs that may target the network. Thus, our in silico methods distinguished many critical genes associated with telomere maintenance that were previously unknown to contribute to EC carcinogenesis and prognosis, including NOP56, WFS1, ANAPC4 and TUBB4A. Probing the prognostic and therapeutic utility of these novel TTAGP markers will form an exciting basis for future research.
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Affiliation(s)
- Alice Bradfield
- Department of Women’s and Children’s Health, University of Liverpool, Crown St, Liverpool L69 7ZX, UK; (A.B.); (J.D.); (C.J.H.)
| | - Lucy Button
- Faculty of Health and Life Sciences, University of Liverpool, Brownlow Hill, Liverpool L69 7ZX, UK;
| | - Josephine Drury
- Department of Women’s and Children’s Health, University of Liverpool, Crown St, Liverpool L69 7ZX, UK; (A.B.); (J.D.); (C.J.H.)
| | - Daniel C. Green
- Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, UK;
| | - Christopher J. Hill
- Department of Women’s and Children’s Health, University of Liverpool, Crown St, Liverpool L69 7ZX, UK; (A.B.); (J.D.); (C.J.H.)
| | - Dharani K. Hapangama
- Department of Women’s and Children’s Health, University of Liverpool, Crown St, Liverpool L69 7ZX, UK; (A.B.); (J.D.); (C.J.H.)
- Liverpool Women’s NHS Foundation Trust, Member of Liverpool Health Partners, Liverpool L8 7SS, UK
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13
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Pesce M, Bär C, Madonna R, Thum T. Debating new strategies for cardiac protection in the ageing heart in Naples, Italy: news from the joint meeting of the ESC Working Groups of Myocardial Function and Cellular Biology of the Heart. Cardiovasc Res 2020; 116:1802-1804. [PMID: 32666085 DOI: 10.1093/cvr/cvaa218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Maurizio Pesce
- Unità di Ingegneria Tissutale Cardiovascolare, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Christian Bär
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.,REBIRTH Center for Translational Regenerative Medicine, 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
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.,REBIRTH Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
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14
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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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15
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Ruan DT, Gao S, Shelat H, King B, Geng YJ. Differential expression of microRNA and arachidonic acid metabolism in aspirin-treated human cardiac and peri-cardiac fat-derived mesenchymal stem cells. Vascul Pharmacol 2020; 127:106651. [PMID: 32044414 DOI: 10.1016/j.vph.2020.106651] [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: 04/25/2019] [Revised: 10/09/2019] [Accepted: 02/06/2020] [Indexed: 02/07/2023]
Abstract
Aspirin is a widely used drug with anti-coagulating and anti-inflammatory effects on atherosclerotic vascular disease. The goal of this study was to investigate expression of microRNA (miR) in association with changes in arachidonic acid (AA) metabolism in cardiac and surrounding fat mesenchymal stem cells (MSCs) treated with or without aspirin. Aspirin-targeted endogenous lipid metabolites that impact specific miRNA expression were examined by mass spectrometry. The pattern of miR expression was characterized using a microarray of 1100 miRs. There were a dozen miRs expressed differentially in MSCs from human myocardium and peri-myocardial fat tissue at baseline, including hsa-miR-1307-3p, 765, 4739, 3613-3p, 4281, 6816-5p, 2861, and 146b-5p. After exposure to aspirin, cardiac MSCs expressed an array of of miRs (eg, hsa-miR-4734, 10a-5p, 4267, 3197, and 3182), while generation of their endogenous AA metabolites was depressed. However, in the peri-cardiac adipose tissue-derived MSCs, treatment with the same doses of aspirin caused mild changes in the miR expression levels. In conclusion, MSCs from human myocardium and peri-myocardial fat tissue respond differentially to aspirin treatment by alterations in miR expression and AA metabolism. The study further raises an intriguing issue as to whether the copious amounts of aspirin taken worldwide by patients with cardiovascular disease may have direct impacts on their heart repair processes by regulation of stromal cell miR expression and AA metabolism.
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Affiliation(s)
- Diana T Ruan
- Columbia University Vagelos College of Physician and Surgeons, Columbia University, New York, NY, United States of America; Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America
| | - Song Gao
- Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America
| | - Harnath Shelat
- Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America
| | - Bridgette King
- College of Agriculture and Life Science, Texas A&M University, College Station, TX, United States of America
| | - Yong-Jian Geng
- Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America.
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16
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Irisin Improves Autophagy of Aged Hepatocytes via Increasing Telomerase Activity in Liver Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6946037. [PMID: 31976032 PMCID: PMC6959141 DOI: 10.1155/2020/6946037] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/16/2019] [Indexed: 02/06/2023]
Abstract
An aged liver has decreased reparative capacity during ischemia-reperfusion (IR) injury. A recent study showed that plasma irisin levels predict telomere length in healthy adults. The aim of the present study is to clarify the role of irisin, telomerase activity, and autophagy during hepatic IR in the elderly. To study this, hepatic IR was established in 22-month- and 3-month-old rats and primary hepatocytes were isolated. The results showed that the old rats exhibited more serious liver injury and lower levels of irisin expression, telomerase activity, autophagy ability, and mitochondrial function than young rats during hepatic IR. Irisin activated autophagy and improved mitochondrial function via increasing telomerase activity in aged hepatocytes. Inhibition of telomerase activity by BIBP1532 abolished the protective role of irisin in hepatocytes during hypoxia and reoxygenation. Additionally, this study proved irisin increased the telomerase activity via inhibition of the phosphorylation of JNK during hepatic IR. Administration of exogenous irisin significantly mitigated the inflammation, oxidative stress, apoptosis, and liver injury in an old rat model of hepatic IR. In conclusion, irisin improves autophagy of aged hepatocytes via increasing telomerase activity in hepatic IR. Irisin exhibits conspicuous benefits in increasing reparative capacity of an aged liver during hepatic IR.
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17
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Balistreri CR, Garagnani P, Madonna R, Vaiserman A, Melino G. Developmental programming of adult haematopoiesis system. Ageing Res Rev 2019; 54:100918. [PMID: 31226498 DOI: 10.1016/j.arr.2019.100918] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/15/2019] [Accepted: 06/17/2019] [Indexed: 12/15/2022]
Abstract
The Barker hypothesis of 'foetal origin of adult diseases' has led to emphasize the concept of 'developmental programming', based on the crucial role of epigenetic factors. Accordingly, it has been demonstrated that parental adversity (before conception and during pregnancy) and foetal factors (i.e., hypoxia, malnutrition and placental insufficiency) permanently modify the physiological systems of the progeny, predisposing them to premature ageing and chronic disease during adulthood. Thus, an altered functionality of the endocrine, immune, nervous and cardiovascular systems is observed in the progeny. However, it remains to be understood whether the haematopoietic system itself also represents a portrait of foetal programming. Here, we provide evidence, reporting and discussing related theories, and results of studies described in the literature. In addition, we have outlined our opinions and suggest how it is possible to intervene to correct foetal mal-programming. Some pro-health interventions and recommendations are proposed, with the hope of guarantee the health of future generations and trying to combat the continuous increase in age-related diseases in human populations.
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18
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Enhanced cardiac repair by telomerase reverse transcriptase over-expression in human cardiac mesenchymal stromal cells. Sci Rep 2019; 9:10579. [PMID: 31332256 PMCID: PMC6646304 DOI: 10.1038/s41598-019-47022-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 07/08/2019] [Indexed: 12/11/2022] Open
Abstract
We have previously reported a subpopulation of mesenchymal stromal cells (MSCs) within the platelet-derived growth factor receptor-alpha (PDGFRα)/CD90 co-expressing cardiac interstitial and adventitial cell fraction. Here we further characterise PDGFRα/CD90-expressing cardiac MSCs (PDGFRα + cMSCs) and use human telomerase reverse transcriptase (hTERT) over-expression to increase cMSCs ability to repair the heart after induced myocardial infarction. hTERT over-expression in PDGFRα + cardiac MSCs (hTERT + PDGFRα + cMSCs) modulates cell differentiation, proliferation, survival and angiogenesis related genes. In vivo, transplantation of hTERT + PDGFRα + cMSCs in athymic rats significantly increased left ventricular function, reduced scar size, increased angiogenesis and proliferation of both cardiomyocyte and non-myocyte cell fractions four weeks after myocardial infarction. In contrast, transplantation of mutant hTERT + PDGFRα + cMSCs (which generate catalytically-inactive telomerase) failed to replicate this cardiac functional improvement, indicating a telomerase-dependent mechanism. There was no hTERT + PDGFRα + cMSCs engraftment 14 days after transplantation indicating functional improvement occurred by paracrine mechanisms. Mass spectrometry on hTERT + PDGFRα + cMSCs conditioned media showed increased proteins associated with matrix modulation, angiogenesis, cell proliferation/survival/adhesion and innate immunity function. Our study shows that hTERT can activate pro-regenerative signalling within PDGFRα + cMSCs and enhance cardiac repair after myocardial infarction. An increased understanding of hTERT’s role in mesenchymal stromal cells from various organs will favourably impact clinical regenerative and anti-cancer therapies.
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19
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Madonna R, Angelucci S, Di Giuseppe F, Doria V, Giricz Z, Görbe A, Ferdinandy P, De Caterina R. Proteomic analysis of the secretome of adipose tissue-derived murine mesenchymal cells overexpressing telomerase and myocardin. J Mol Cell Cardiol 2019; 131:171-186. [PMID: 31055035 DOI: 10.1016/j.yjmcc.2019.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 02/06/2019] [Accepted: 04/18/2019] [Indexed: 12/25/2022]
Abstract
RATIONALE Understanding mechanisms of the therapeutic effects of stem/progenitor cells, among which adipose tissue-derived mesenchymal stromal cells (AT-MSCs), has important implications for clinical use. Since the majority of such cells die within days or weeks after transplantation and do not persist in the transplanted organ or tissue, their effects appear to be largely mediated by paracrine signaling pathways, and are enhanced by overexpression of the antisenescent protein telomerase reverse transcriptase (TERT), and the anti-apoptotic transcription factor myocardin (MYOCD). AIM By a proteomic approach combining two-dimensional gel electrophoresis (2DE) with matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF/TOF) mass spectrometry, we aimed at analyzing how soluble and vesicular secretomes of aged murine AT-MSCs and their angiogenic function are modulated by the overexpression of TERT and MYOCD. METHODS We cultured murine mock-transduced AT-MSCs and "rejuvenated" AT-MSCs overexpressing TERT and MYOCD (rTMAT-MSCs) harvested from 1-year-old male C57BL/6 mice. We established proteomes from 3 mock-transduced AT-MSCs and rTMAT-MSCs cultures in serum-free conditions, as well as their corresponding conditioned medium (CM) and exosome-enriched fractions (Exo+). RESULTS AND CONCLUSIONS Proteomic analysis revealed a 2-fold increase of matrix metalloproteinase-2 (MMP-2) and its inhibitor metalloproteinase inhibitor 2 (TIMP2) in the CM - but not in the Exo + - of rTMAT-MSCs as compared to mock-transduced AT-MSCs. At the functional level, rTMAT-MSCs-CM, and - to a lesser extent - its Exo + fraction, increased tube formation of human vein endothelial cells (HUVECs), which could be blocked by anti-MMP2 and enhanced by anti-TIMP2 antibodies, respectively. Altogether, our results identify MMP2 and its inhibitor TIMP2 as novel candidates by which rTMAT-MSCs can support angiogenesis. Our strategy also illustrates the usefulness of comparative targeted proteomic approach to decipher molecular pathways underlying rTMAT-MSCs properties.
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Affiliation(s)
- Rosalinda Madonna
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Department of Internal Medicine, Cardiology, The University of Texas Health Science Center at Houston, Houston, Texas, United States; Department of Neurosciences, Imaging and Clinical Sciences, "G. d'Annunzio" University, Chieti-Pescara, Chieti, Italy.
| | - Stefania Angelucci
- Department of Medical, Oral & Biotechnological Sciences, Dentistry and Biotechnology, and Aging Research Center and Translational Medicine, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy; Stem TeCh Group, Via L Polacchi 13, Chieti, Italy
| | - Fabrizio Di Giuseppe
- Department of Medical, Oral & Biotechnological Sciences, Dentistry and Biotechnology, and Aging Research Center and Translational Medicine, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy; Stem TeCh Group, Via L Polacchi 13, Chieti, Italy
| | - Vanessa Doria
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Department of Neurosciences, Imaging and Clinical Sciences, "G. d'Annunzio" University, Chieti-Pescara, Chieti, Italy
| | - Zoltán Giricz
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Anikó Görbe
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Raffaele De Caterina
- Center of Aging Sciences and Translational Medicine - CESI-Met and Institute of Cardiology, "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy; Institute of Cardiology, University of Pisa, Pisa, Italy; Department of Neurosciences, Imaging and Clinical Sciences, "G. d'Annunzio" University, Chieti-Pescara, Chieti, Italy.
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20
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Atamna H, Tenore A, Lui F, Dhahbi JM. Organ reserve, excess metabolic capacity, and aging. Biogerontology 2018; 19:171-184. [PMID: 29335816 DOI: 10.1007/s10522-018-9746-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 01/09/2018] [Indexed: 12/21/2022]
Abstract
"Organ reserve" refers to the ability of an organ to successfully return to its original physiological state following repeated episodes of stress. Clinical evidence shows that organ reserve correlates with the ability of older adults to cope with an added workload or stress, suggesting a role in the process of aging. Although organ reserve is well documented clinically, it is not clearly defined at the molecular level. Interestingly, several metabolic pathways exhibit excess metabolic capacities (e.g., bioenergetics pathway, antioxidants system, plasticity). These pathways comprise molecular components that have an excess of quantity and/or activity than that required for basic physiological demand in vivo (e.g., mitochondrial complex IV or glycolytic enzymes). We propose that the excess in mtDNA copy number and tandem DNA repeats of telomeres are additional examples of intrinsically embedded structural components that could comprise excess capacity. These excess capacities may grant intermediary metabolism the ability to instantly cope with, or manage, added workload or stress. Therefore, excess metabolic capacities could be viewed as an innate mechanism of adaptability that substantiates organ reserve and contributes to the cellular defense systems. If metabolic excess capacities or organ reserves are impaired or exhausted, the ability of the cell to cope with stress is reduced. Under these circumstances cell senescence, transformation, or death occurs. In this review, we discuss excess metabolic and structural capacities as integrated metabolic pathways in relation to organ reserve and cellular aging.
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Affiliation(s)
- Hani Atamna
- School of Medicine, California University of Science and Medicine (CUSM), 217 E Club Center Dr. Suite A, San Bernardino, CA, 92408, USA.
- California Northstate University, College of Medicine, Elk Grove, CA, USA.
| | - Alfred Tenore
- School of Medicine, California University of Science and Medicine (CUSM), 217 E Club Center Dr. Suite A, San Bernardino, CA, 92408, USA
- California Northstate University, College of Medicine, Elk Grove, CA, USA
| | - Forshing Lui
- School of Medicine, California University of Science and Medicine (CUSM), 217 E Club Center Dr. Suite A, San Bernardino, CA, 92408, USA
- California Northstate University, College of Medicine, Elk Grove, CA, USA
| | - Joseph M Dhahbi
- School of Medicine, California University of Science and Medicine (CUSM), 217 E Club Center Dr. Suite A, San Bernardino, CA, 92408, USA
- California Northstate University, College of Medicine, Elk Grove, CA, USA
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21
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Telomere Biology and Thoracic Aortic Aneurysm. Int J Mol Sci 2017; 19:ijms19010003. [PMID: 29267201 PMCID: PMC5795955 DOI: 10.3390/ijms19010003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/13/2017] [Accepted: 12/19/2017] [Indexed: 12/27/2022] Open
Abstract
Ascending aortic aneurysms are mostly asymptomatic and present a great risk of aortic dissection or perforation. Consequently, ascending aortic aneurysms are a source of lethality with increased age. Biological aging results in progressive attrition of telomeres, which are the repetitive DNA sequences at the end of chromosomes. These telomeres play an important role in protection of genomic DNA from end-to-end fusions. Telomere maintenance and telomere attrition-associated senescence of endothelial and smooth muscle cells have been indicated to be part of the pathogenesis of degenerative vascular diseases. This systematic review provides an overview of telomeres, telomere-associated proteins and telomerase to the formation and progression of aneurysms of the thoracic ascending aorta. A better understanding of telomere regulation in the vascular pathology might provide new therapeutic approaches. Measurements of telomere length and telomerase activity could be potential prognostic biomarkers for increased risk of death in elderly patients suffering from an aortic aneurysm.
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Grigorian-Shamagian L, Liu W, Fereydooni S, Middleton RC, Valle J, Cho JH, Marbán E. Cardiac and systemic rejuvenation after cardiosphere-derived cell therapy in senescent rats. Eur Heart J 2017; 38:2957-2967. [PMID: 29020403 PMCID: PMC5837602 DOI: 10.1093/eurheartj/ehx454] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 05/17/2017] [Accepted: 07/17/2017] [Indexed: 02/07/2023] Open
Abstract
AIM The aim is to assess the effects of CDCs on heart structure, function, gene expression, and systemic parameters in aged rats. Diastolic dysfunction is characteristic of aged hearts. Cardiosphere-derived cell (CDC) therapy has exhibited several favourable effects on heart structure and function in humans and in preclinical models; however, the effects of CDCs on aging have not been evaluated. METHODS AND RESULTS We compared intra-cardiac injections of neonatal rat CDCs to vehicle (phosphate-buffered saline, PBS) in 21.8 ± 1.6 month-old rats (mean ± standard deviation; n = 23 total). Ten rats 4.1 ± 1.5 months of age comprised a young reference group. Blood, echocardiographic, haemodynamic and treadmill stress tests were performed at baseline in all animals, and 1 month after treatment in old animals. Histology and the transcriptome were assessed after terminal phenotyping. For in vitro studies, human heart progenitors from older donors, or cardiomyocytes from aged rats were exposed to human CDCs or exosomes secreted by CDCs (CDC-XO) from paediatric donors. Transcriptomic analysis revealed that CDCs, but not PBS, recapitulated a youthful pattern of gene expression in the hearts of old animals (85.5% of genes differentially expressed, P < 0.05). Telomeres in heart cells were longer in CDC-transplanted animals (P < 0.0001 vs. PBS). Cardiosphere-derived cells attenuated hypertrophy by echo (P < 0.01); histology confirmed decreases in cardiomyocyte area (P < 0.0001) and myocardial fibrosis (P < 0.05) vs. PBS. Cardiosphere-derived cell injection improved diastolic dysfunction [lower E/A (P < 0.01), E/E' (P = 0.05), end-diastolic pressure-volume relationship (P < 0.05) compared with baseline), and lowered serum brain natriuretic peptide (both P < 0.05 vs. PBS). In CDC-transplanted old rats, exercise capacity increased ∼20% (P < 0.05 vs. baseline), body weight decreased ∼30% less (P = 0.05 vs. PBS) and hair regrowth after shaving was more robust (P < 0.05 vs. PBS). Serum biomarkers of inflammation (IL-10, IL-1b, and IL-6) improved in the CDC group (P < 0.05 for each, all vs. PBS). Young CDCs secrete exosomes which increase telomerase activity, elongate telomere length, and reduce the number of senescent human heart cells in culture. CONCLUSION Young CDCs rejuvenate old animals as gauged by cardiac gene expression, heart function, exercise capacity, and systemic biomarkers.
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Affiliation(s)
| | - Weixin Liu
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Soraya Fereydooni
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Ryan C. Middleton
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Jackelyn Valle
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Jae Hyung Cho
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Eduardo Marbán
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
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Oltolina F, Zamperone A, Colangelo D, Gregoletto L, Reano S, Pietronave S, Merlin S, Talmon M, Novelli E, Diena M, Nicoletti C, Musarò A, Filigheddu N, Follenzi A, Prat M. Human Cardiac Progenitor Spheroids Exhibit Enhanced Engraftment Potential. PLoS One 2015; 10:e0137999. [PMID: 26375957 PMCID: PMC4572703 DOI: 10.1371/journal.pone.0137999] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 08/24/2015] [Indexed: 01/08/2023] Open
Abstract
A major obstacle to an effective myocardium stem cell therapy has always been the delivery and survival of implanted stem cells in the heart. Better engraftment can be achieved if cells are administered as cell aggregates, which maintain their extra-cellular matrix (ECM). We have generated spheroid aggregates in less than 24 h by seeding human cardiac progenitor cells (hCPCs) onto methylcellulose hydrogel-coated microwells. Cells within spheroids maintained the expression of stemness/mesenchymal and ECM markers, growth factors and their cognate receptors, cardiac commitment factors, and metalloproteases, as detected by immunofluorescence, q-RT-PCR and immunoarray, and expressed a higher, but regulated, telomerase activity. Compared to cells in monolayers, 3D spheroids secreted also bFGF and showed MMP2 activity. When spheroids were seeded on culture plates, the cells quickly migrated, displaying an increased wound healing ability with or without pharmacological modulation, and reached confluence at a higher rate than cells from conventional monolayers. When spheroids were injected in the heart wall of healthy mice, some cells migrated from the spheroids, engrafted, and remained detectable for at least 1 week after transplantation, while, when the same amount of cells was injected as suspension, no cells were detectable three days after injection. Cells from spheroids displayed the same engraftment capability when they were injected in cardiotoxin-injured myocardium. Our study shows that spherical in vivo ready-to-implant scaffold-less aggregates of hCPCs able to engraft also in the hostile environment of an injured myocardium can be produced with an economic, easy and fast protocol.
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Affiliation(s)
- Francesca Oltolina
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Andrea Zamperone
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Donato Colangelo
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Luca Gregoletto
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Simone Reano
- Dept. Translational Medicine, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Stefano Pietronave
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Simone Merlin
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Maria Talmon
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Eugenio Novelli
- Dept. of Cardiac Surgery, Clinica S. Gaudenzio, Novara, Italy
| | - Marco Diena
- Dept. of Cardiac Surgery, Clinica S. Gaudenzio, Novara, Italy
| | - Carmine Nicoletti
- Institute Pasteur Cenci-Bolognetti, DAHFMO, Roma, Italy
- Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Rome, Italy
| | - Antonio Musarò
- Institute Pasteur Cenci-Bolognetti, DAHFMO, Roma, Italy
- Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Rome, Italy
| | - Nicoletta Filigheddu
- Dept. Translational Medicine, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Antonia Follenzi
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
- Centro di Biotecnologie per la Ricerca Medica Applicata (BRMA), Novara, Italy
| | - Maria Prat
- Dept. Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
- Centro di Biotecnologie per la Ricerca Medica Applicata (BRMA), Novara, Italy
- * E-mail:
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Iyngkaran P, Thomas M. Bedside-to-Bench Translational Research for Chronic Heart Failure: Creating an Agenda for Clients Who Do Not Meet Trial Enrollment Criteria. CLINICAL MEDICINE INSIGHTS-CARDIOLOGY 2015; 9:121-32. [PMID: 26309418 PMCID: PMC4527366 DOI: 10.4137/cmc.s18737] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 03/09/2015] [Accepted: 03/25/2015] [Indexed: 01/09/2023]
Abstract
Congestive heart failure (CHF) is a chronic condition usually without cure. Significant developments, particularly those addressing pathophysiology, mainly started at the bench. This approach has seen many clinical observations initially explored at the bench, subsequently being trialed at the bedside, and eventually translated into clinical practice. This evidence, however, has several limitations, importantly the generalizability or external validity. We now acknowledge that clinical management of CHF is more complicated than merely translating bench-to-bedside evidence in a linear fashion. This review aims to help explore this evolving area from an Australian perspective. We describe the continuation of research once core evidence is established and describe how clinician-scientist collaboration with a bedside-to-bench view can help enhance evidence translation and generalizability. We describe why an extension of the available evidence or generating new evidence is occasionally needed to address the increasingly diverse cohort of patients. Finally, we explore some of the tools used by basic scientists and clinicians to develop evidence and describe the ones we feel may be most beneficial.
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Affiliation(s)
- P Iyngkaran
- Flinders University, NT Medical School, Darwin, Australia
| | - M Thomas
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
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Sanchis-Gomar F, Lucia A. Acute myocardial infarction: ‘telomerasing’ for cardioprotection. Trends Mol Med 2015; 21:203-5. [DOI: 10.1016/j.molmed.2015.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 01/29/2015] [Accepted: 02/03/2015] [Indexed: 01/20/2023]
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Yamashita S, Ogawa K, Ikei T, Fujiki T, Katakura Y. FOXO3a potentiates hTERT gene expression by activating c-MYC and extends the replicative life-span of human fibroblast. PLoS One 2014; 9:e101864. [PMID: 25000517 PMCID: PMC4085005 DOI: 10.1371/journal.pone.0101864] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/12/2014] [Indexed: 11/26/2022] Open
Abstract
In our previous studies, we reported that SIRT1 prevents cellular senescence in human fibroblast, and that SIRT1-induced inhibition of cellular senescence is due to enhanced hTERT gene expression. In this study, we investigate the molecular mechanisms behind SIRT1-induced potentiation of hTERT transcription and show that FOXO3a functions downstream of SIRT1 and prevents the induction of cellular senescence by enhancing hTERT gene expression. Furthermore, we found that FOXO3a-induced potentiation of hTERT gene expression is regulated in a c-MYC/E-box dependent manner. In addition, we found that FOXO3a binds to the novel binding element in the c-MYC promoter, and this interaction activates the transcription of the c-MYC gene. The resulting increase in c-MYC leads to higher levels of c-MYC recruited to the hTERT promoter and, in turn, activates hTERT gene expression. Taken together, this pathway might constitute the molecular basis for the anti-senescence effects of SIRT1 and FOXO3a.
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Affiliation(s)
- Shuntaro Yamashita
- Graduate School of Systems Life Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Kaori Ogawa
- Graduate School of Bioresources and Bioenvironmental Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Takahiro Ikei
- Graduate School of Bioresources and Bioenvironmental Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Tsukasa Fujiki
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Yoshinori Katakura
- Graduate School of Systems Life Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
- Graduate School of Bioresources and Bioenvironmental Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
- * E-mail:
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27
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Zhao F, Qu Y, Liu H, Du B, Mu D. Umbilical cord blood mesenchymal stem cells co-modified by TERT and BDNF: a novel neuroprotective therapy for neonatal hypoxic-ischemic brain damage. Int J Dev Neurosci 2014; 38:147-54. [PMID: 24999119 DOI: 10.1016/j.ijdevneu.2014.06.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 06/18/2014] [Accepted: 06/25/2014] [Indexed: 01/01/2023] Open
Abstract
Hypoxic-ischemic brain damage (HIBD), a leading cause of perinatal disability and death, has limited therapeutic options. Stem cell therapy has been demonstrated as a potential novel therapy for neurological disorders. Compared with other types of stem cells, umbilical cord blood mesenchymal stem cells (UCB-MSCs) have several unique characteristics, such as a higher rate of cell proliferation and clonality. However, the limited life span of UCB-MSCs hinders their clinical application. Therefore, efforts are urgently needed to circumvent this disadvantage. Telomerase reverse transcriptase (TERT), which promotes cell proliferation and survival, plays a protective role in hypoxic-ischemic (HI) brain injury. Thus, it is reasonable to propose that UCB-MSCs modified by exogenous TERT expression might have a longer lifespan and increased viability. Moreover, brain-derived neurotrophic factor (BDNF), a neurotrophin that regulates development, regeneration, survival and maintenance of neurons, facilitates post-injury recovery when administered by infusion or virus-mediated delivery. Therefore, TERT- and BDNF-modified UCB-MSCs may have a longer lifespan and also maintain neural differentiation, thus promoting the recovery of neurological function following hypoxic-ischemic brain damage (HIBD) and thereby representing a new effective strategy for HIBD in neonates.
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Affiliation(s)
- Fengyan Zhao
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Yi Qu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Haiting Liu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Baowen Du
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Dezhi Mu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China; Department of Pediatrics and Neurology, University of California, San Francisco, CA 94143, USA.
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Akasheva DU, Plokhova EV, Strazhesko ID, Dudinskaya EN, Tkacheva ON. HEART AND AGE (PART III): MODIFYING AGEING PROCESSES. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2013. [DOI: 10.15829/1728-8800-2013-5-91-96] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Glodzik L, Randall C, Rusinek H, de Leon MJ. Cerebrovascular reactivity to carbon dioxide in Alzheimer's disease. J Alzheimers Dis 2013; 35:427-40. [PMID: 23478306 DOI: 10.3233/jad-122011] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
There is growing evidence that cerebrovascular reactivity to carbon dioxide (CVRCO2) is impaired in Alzheimer's disease (AD). Preclinical and animal studies suggest chronic hypercontractility in brain vessels in AD. We review (a) preclinical studies of mechanisms for impaired CVRCO2 in AD; (b) clinical studies of cerebrovascular function in subjects with AD dementia, mild cognitive impairment (MCI), and normal cognition. Although results of clinical studies are inconclusive, an increasing number of reports reveal an impairment of vascular reactivity to carbon dioxide in subjects with AD, and possibly also in MCI. Thus, CVRCO2 may be an attractive means to detect an early vascular dysfunction in subjects at risk.
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Affiliation(s)
- Lidia Glodzik
- Center for Brain Health, Department of Psychiatry, New York University School of Medicine, New York, NY 10016, USA.
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Madonna R, Taylor DA, Geng YJ, De Caterina R, Shelat H, Perin EC, Willerson JT. Transplantation of mesenchymal cells rejuvenated by the overexpression of telomerase and myocardin promotes revascularization and tissue repair in a murine model of hindlimb ischemia. Circ Res 2013; 113:902-14. [PMID: 23780385 DOI: 10.1161/circresaha.113.301690] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
RATIONALE The number and function of stem cells decline with aging, reducing the ability of stem cells to contribute to endogenous repair processes. The repair capacity of stem cells in older individuals may be improved by genetically reprogramming the stem cells to exhibit delayed senescence and enhanced regenerative properties. OBJECTIVE We examined whether the overexpression of myocardin (MYOCD) and telomerase reverse transcriptase (TERT) enhanced the survival, growth, and myogenic differentiation of mesenchymal stromal cells (MSCs) isolated from adipose or bone marrow tissues of aged mice. We also examined the therapeutic efficacy of transplanted MSCs overexpressing MYOCD and TERT in a murine model of hindlimb ischemia. METHODS AND RESULTS MSCs from adipose or bone marrow tissues of young (1 month old) and aged (12 months old) male C57BL/6 and apolipoprotein E-null mice were transiently transduced with lentiviral vectors encoding TERT, MYOCD, or both TERT and MYOCD. Flow cytometry and bromodeoxyuridine cell proliferation assays showed that transduction with TERT and, to a lesser extent, MYOCD, increased MSC viability and proliferation. In colony-forming assays, MSCs overexpressing TERT and MYOCD were more clonogenic than mock-transduced MSCs. Fas-induced apoptosis was inhibited in MSCs overexpressing MYOCD or TERT. When compared with aged mock-transduced MSCs, aged MSCs overexpressing TERT, MYOCD, or both TERT and MYOCD increased myogenic marker expression, blood flow, and arteriogenesis when transplanted into the ischemic hindlimbs of apolipoprotein E-null mice. CONCLUSIONS The delivery of the TERT and MYOCD genes into MSCs may have therapeutic applications for restoring, or rejuvenating, aged MSCs from adipose and bone marrow tissues.
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Shen XH, Xu SJ, Jin CY, Ding F, Zhou YC, Fu GS. Interleukin-8 prevents oxidative stress-induced human endothelial cell senescence via telomerase activation. Int Immunopharmacol 2013; 16:261-7. [DOI: 10.1016/j.intimp.2013.04.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 03/28/2013] [Accepted: 04/02/2013] [Indexed: 01/17/2023]
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Genetic variants implicated in telomere length associated with left ventricular function in patients with hypertension and cardiac organ damage. J Mol Med (Berl) 2013; 90:1059-67. [PMID: 22314626 DOI: 10.1007/s00109-012-0874-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 01/24/2012] [Accepted: 01/26/2012] [Indexed: 10/14/2022]
Abstract
Telomere length has emerged as a biological correlate for ageing, which in turn is a risk factor for the manifestation of cardiovascular diseases. This study investigated the relation between leucocyte telomere length (LTL) and its genetic background to cardiac structure and function in patients with arterial hypertension. We analysed a cohort of 1,106 treated hypertensive patients (83.3% males; mean age, 57.9 ± 9.8 years) with an ejection fraction (EF) over 40% and documented cardiovascular disease or target organ damage. LTL and genotypes of single nucleotide polymorphisms (SNPs), previously implicated in LTL, were determined by real-time PCR. The mean left ventricular mass index (LVMI) and EF were 51.8 ± 21.0 g/H2.7 and 61.1 ± 9.6%, respectively. In multivariate adjusted analysis, a 1.5-fold LTL was positively related with a 2.2% increase of LVMI (CI = 0.1% to 4.2%, p = 0.044) and an absolute increase in EF of 0.6% (CI = 0.1% to 1.1%, p = 0.028). One SNP near TERC (rs16847897) showed a significant absolute difference in EF dependent on allele status (rs16847897, G allele 2.7%; CI = 0.7% to 4.6%; p raw = 0.008, p mt = 0.048, after adjustment for multiple testing). This applied also for two SNPs in BICD1 (rs2630578, C allele −1.8%; CI = −2.8% to −0.7%; p raw = 0.002, p mt = 0.018; rs1151026, G allele −1.9%, CI = −3.0% to −0.8%; p raw < 0.001, p mt = 0.002) with the extension that a frequent haplotype in BICD1 showed an absolute −1.8% (CI = −3.0% to −0.7%; p raw = 0.002, p mt = 0.008) lower EF compared with those lacking this haplotype. Our results point to a role of genetic variants recently implicated in LTL for left ventricular function in hypertensive patients.
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Anzalone R, Corrao S, Lo Iacono M, Loria T, Corsello T, Cappello F, Di Stefano A, Giannuzzi P, Zummo G, Farina F, La Rocca G. Isolation and characterization of CD276+/HLA-E+ human subendocardial mesenchymal stem cells from chronic heart failure patients: analysis of differentiative potential and immunomodulatory markers expression. Stem Cells Dev 2013; 22:1-17. [PMID: 23013234 DOI: 10.1089/scd.2012.0402] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are virtually present in all postnatal organs as well as in perinatal tissues. MSCs can be differentiated toward several mature cytotypes and interestingly hold potentially relevant immunomodulatory features. Myocardial infarction results in severe tissue damage, cardiomyocyte loss, and eventually heart failure. Cellular cardiomyoplasty represents a promising approach for myocardial repair. Clinical trials using MSCs are underway for a number of heart diseases, even if their outcomes are hampered by low long-term improvements and the possible presence of complications related to cellular therapy administration. Therefore, elucidating the presence and role of MSCs that reside in the post-infarct human heart should provide essential alternatives for therapy. In the current article we show a novel method to reproducibly isolate and culture MSCs from the subendocardial zone of human left ventricle from patients undergoing heart transplant for post-infarct chronic heart failure (HSE-MSCs, human subendocardial mesenchymal stem cells). By using both immunocytochemistry and reverse transcriptase-polymerase chain reaction (RT-PCR), we demonstrated that these cells do express key MSCs markers and do express heart-specific transcription factors in their undifferentiated state, while lacking strictly cardiomyocyte-specific proteins. Moreover, these cells do express immunomodulatory molecules that should disclose their further potential in immune modulation processes in the post-infarct microenvironment. Another novel datum of potentially relevant interest is the expression of cardiac myosin heavy chain at nucclear level in HSE-MSCs. Standard MSCs trilineage differentiation experiments were also performed. The present paper adds new data on the basic biological features of heart-resident MSCs that populate the organ following myocardial infarction. The use of heart-derived MSCs to promote in-organ repair or as a cellular source for cardiomyoplasty is a fascinating and challenging task, which deserves further research efforts.
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Affiliation(s)
- Rita Anzalone
- Sezione di Anatomia Umana, Dipartimento di Biomedicina Sperimentale e Neuroscienze Cliniche (BIONEC), Università degli Studi di Palermo, Palermo, Italy
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Richardson GD, Breault D, Horrocks G, Cormack S, Hole N, Owens WA. Telomerase expression in the mammalian heart. FASEB J 2012; 26:4832-40. [PMID: 22919071 PMCID: PMC3509052 DOI: 10.1096/fj.12-208843] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
While the mammalian heart has low, but functionally significant, levels of telomerase expression, the cellular population responsible remains incompletely characterized. This study aimed to identify the cell types responsible for cardiac telomerase activity in neonatal, adult, and cryoinjured adult hearts using transgenic mice expressing green fluorescent protein (GFP), driven by the promoter for murine telomerase reverse transcriptase (mTert), which is a necessary and rate-limiting component of telomerase. A rare population of mTert-GFP-expressing cells was identified that possessed all detectable cardiac telomerase RNA and telomerase activity. It was heterogeneous and included cells coexpressing markers of cardiomyocytic, endothelial, and mesenchymal lineages, putative cardiac stem cell markers, and, interestingly, cardiomyocytes with a differentiated phenotype. Quantification using both flow cytometry and immunofluorescence identified a significant decline in mTert-GFP cells in adult animals compared to neonates (∼9- and ∼20-fold, respectively). Cardiac injury resulted in a ∼6.45-fold expansion of this population (P<0.005) compared with sham-operated controls. This study identifies the cells responsible for cardiac telomerase activity, demonstrates a significant diminution with age but a marked response to injury, and, given the relationship between telomerase activity and stem cell populations, suggests that they represent a potential target for further investigation of cardiac regenerative potential.—Richardson, G. D., Breault, D., Horrocks, G., Cormack, S., Hole, N., Owens, W. A. Telomerase expression in the mammalian heart.
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Affiliation(s)
- Gavin D Richardson
- Institute of Genetic Medicine, International Centre for Life, Newcastle University, Newcastle upon Tyne, NE1 3BZ, UK.
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McDonald RA, Hata A, MacLean MR, Morrell NW, Baker AH. MicroRNA and vascular remodelling in acute vascular injury and pulmonary vascular remodelling. Cardiovasc Res 2011; 93:594-604. [PMID: 22065733 DOI: 10.1093/cvr/cvr299] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Vascular remodelling is an integral pathological process central to a number of cardiovascular diseases. The complex interplay between distinct cell populations in the vessel wall following vascular injury leads to inflammation, cellular dysfunction, pro-growth signals in the smooth muscle cell (SMC) compartment, and the acquisition of a synthetic phenotype. Although the signals for vascular remodelling are diverse in different pathological contexts, SMC proliferation and migration are consistently observed. It is therefore critical to elucidate key mechanisms central to these processes. MicroRNAs (miRNAs) are small non-coding sequences of RNA that have the capacity to regulate many genes, pathways, and complex biological networks within cells, acting either alone or in concert with one another. In diseases such as cancer and cardiac disease, the role of miRNA in disease pathogenesis has been documented in detail. In contrast, despite a great deal of interest in miRNA, relatively few studies have directly assessed the role of miRNA in vascular remodelling. The potential for modulation of miRNA to achieve therapeutic benefits in this setting is attractive. Here, we focus on the role of miRNA in vascular inflammation and remodelling associated with acute vascular injury (vein graft disease, angioplasty restenosis, and in-stent restenosis) as well as in vascular remodelling associated with the development of pulmonary arterial hypertension.
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Affiliation(s)
- Robert A McDonald
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow G12 8TA, UK
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Is telomerase the final downstream effector of the escape of cardiomyocytes from the point-of-no-return of apoptosis in infants of diabetic mothers? Int J Cardiol 2011; 151:378-9. [DOI: 10.1016/j.ijcard.2011.06.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Accepted: 06/25/2011] [Indexed: 02/02/2023]
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Geng YJ, Willerson JT. Repairing the Infarcted Heart with Stem Cells from Umbilical Cord Stroma. Cardiology 2011; 120:100-2. [DOI: 10.1159/000334241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Accepted: 10/08/2011] [Indexed: 12/24/2022]
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