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Katsuumi G, Shimizu I, Suda M, Yoshida Y, Furihata T, Joki Y, Hsiao CL, Jiaqi L, Fujiki S, Abe M, Sugimoto M, Soga T, Minamino T. SGLT2 inhibition eliminates senescent cells and alleviates pathological aging. NATURE AGING 2024; 4:926-938. [PMID: 38816549 PMCID: PMC11257941 DOI: 10.1038/s43587-024-00642-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 05/02/2024] [Indexed: 06/01/2024]
Abstract
It has been reported that accumulation of senescent cells in various tissues contributes to pathological aging and that elimination of senescent cells (senolysis) improves age-associated pathologies. Here, we demonstrate that inhibition of sodium-glucose co-transporter 2 (SGLT2) enhances clearance of senescent cells, thereby ameliorating age-associated phenotypic changes. In a mouse model of dietary obesity, short-term treatment with the SGLT2 inhibitor canagliflozin reduced the senescence load in visceral adipose tissue and improved adipose tissue inflammation and metabolic dysfunction, but normalization of plasma glucose by insulin treatment had no effect on senescent cells. Canagliflozin extended the lifespan of mice with premature aging even when treatment was started in middle age. Metabolomic analyses revealed that short-term treatment with canagliflozin upregulated 5-aminoimidazole-4-carboxamide-1-β-D-ribofuranoside, enhancing immune-mediated clearance of senescent cells by downregulating expression of programmed cell death-ligand 1. These findings suggest that inhibition of SGLT2 has an indirect senolytic effect by enhancing endogenous immunosurveillance of senescent cells.
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Affiliation(s)
- Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Cardiovascular Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Aging, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Advanced Senotherapeutics, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takaaki Furihata
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yusuke Joki
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Chieh-Lun Hsiao
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Liang Jiaqi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shinya Fujiki
- Department of Cardiovascular Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Manabu Abe
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, Japan
| | - Masataka Sugimoto
- Molecular and Cellular Aging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
- Human Biology-Microbiome-Quantum Research Center (WPI-Bio2Q), Keio University, Tokyo, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
- Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, Japan.
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Popa MA, Mihai CM, Șuică VI, Antohe F, Dubey RK, Leeners B, Simionescu M. Dihydrotestosterone Augments the Angiogenic and Migratory Potential of Human Endothelial Progenitor Cells by an Androgen Receptor-Dependent Mechanism. Int J Mol Sci 2024; 25:4862. [PMID: 38732080 PMCID: PMC11084206 DOI: 10.3390/ijms25094862] [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: 03/14/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Endothelial progenitor cells (EPCs) play a critical role in cardiovascular regeneration. Enhancement of their native properties would be highly beneficial to ensuring the proper functioning of the cardiovascular system. As androgens have a positive effect on the cardiovascular system, we hypothesized that dihydrotestosterone (DHT) could also influence EPC-mediated repair processes. To evaluate this hypothesis, we investigated the effects of DHT on cultured human EPCs' proliferation, viability, morphology, migration, angiogenesis, gene and protein expression, and ability to integrate into cardiac tissue. The results showed that DHT at different concentrations had no cytotoxic effect on EPCs, significantly enhanced the cell proliferation and viability and induces fast, androgen-receptor-dependent formation of capillary-like structures. DHT treatment of EPCs regulated gene expression of androgen receptors and the genes and proteins involved in cell migration and angiogenesis. Importantly, DHT stimulation promoted EPC migration and the cells' ability to adhere and integrate into murine cardiac slices, suggesting it has a role in promoting tissue regeneration. Mass spectrometry analysis further highlighted the impact of DHT on EPCs' functioning. In conclusion, DHT increases the proliferation, migration, and androgen-receptor-dependent angiogenesis of EPCs; enhances the cells' secretion of key factors involved in angiogenesis; and significantly potentiates cellular integration into heart tissue. The data offer support for potential therapeutic applications of DHT in cardiovascular regeneration and repair processes.
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Affiliation(s)
- Mirel Adrian Popa
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.A.P.); (C.M.M.); (V.I.Ș.); (F.A.)
| | - Cristina Maria Mihai
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.A.P.); (C.M.M.); (V.I.Ș.); (F.A.)
| | - Viorel Iulian Șuică
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.A.P.); (C.M.M.); (V.I.Ș.); (F.A.)
| | - Felicia Antohe
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.A.P.); (C.M.M.); (V.I.Ș.); (F.A.)
| | - Raghvendra K. Dubey
- Department for Reproductive Endocrinology, University Zurich, 8006 Zürich, Switzerland; (R.K.D.); (B.L.)
| | - Brigitte Leeners
- Department for Reproductive Endocrinology, University Zurich, 8006 Zürich, Switzerland; (R.K.D.); (B.L.)
| | - Maya Simionescu
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.A.P.); (C.M.M.); (V.I.Ș.); (F.A.)
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Zhao X, Zhou S, Liu Y, Gong C, Xiang L, Li S, Wang P, Wang Y, Sun L, Zhang Q, Yang Y. Parishin alleviates vascular ageing in mice by upregulation of Klotho. J Cell Mol Med 2023; 27:1398-1409. [PMID: 37032511 PMCID: PMC10183705 DOI: 10.1111/jcmm.17740] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 04/11/2023] Open
Abstract
Senescence of vascular endothelial cells is the major risk of vascular dysfunction and disease among elderly people. Parishin, which is a phenolic glucoside derived from Gastrodia elata, significantly prolonged yeast lifespan. However, the action of parishin in vascular ageing remains poorly understood. Here, we treated human coronary artery endothelial cells (HCAEC) and naturally aged mice by parishin. Parishin alleviated HCAEC senescence and general age-related features in vascular tissue in naturally aged mice. Network pharmacology approach was applied to determine the compound-target networks of parishin. Our analysis indicated that parishin had a strong binding affinity for Klotho. Expression of Klotho, a protein of age-related declines, was upregulated by parishin in serum and vascular tissue in naturally aged mice. Furthermore, FoxO1, on Klotho/FoxO1 signalling pathway, was increased in the parishin-intervened group, accompanied by the downregulated phosphorylated FoxO1. Taken together, parishin can increase Klotho expression to alleviate vascular endothelial cell senescence and vascular ageing.
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Affiliation(s)
- Xinxiu Zhao
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Shixian Zhou
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Yang Liu
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Caixia Gong
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Lan Xiang
- College of Pharmaceutical SciencesZhejiang University866 Yu Hang Tang RoadHangzhouChina
| | - Shumin Li
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Peixia Wang
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Yuejun Wang
- Zhejiang Aged Care HospitalHangzhou Normal UniversityHangzhouZhejiangChina
| | - Linlin Sun
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Qin Zhang
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
| | - Yunmei Yang
- Department of Geriatrics, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Key Laboratory of Diagnosis and Treatment of Aging and Physic‐chemical Injury Diseases of Zhejiang Province, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
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Wagner N, Wagner KD. Pharmacological Utility of PPAR Modulation for Angiogenesis in Cardiovascular Disease. Int J Mol Sci 2023; 24:ijms24032345. [PMID: 36768666 PMCID: PMC9916802 DOI: 10.3390/ijms24032345] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023] Open
Abstract
Peroxisome proliferator activated receptors, including PPARα, PPARβ/δ, and PPARγ, are ligand-activated transcription factors belonging to the nuclear receptor superfamily. They play important roles in glucose and lipid metabolism and are also supposed to reduce inflammation and atherosclerosis. All PPARs are involved in angiogenesis, a process critically involved in cardiovascular pathology. Synthetic specific agonists exist for all PPARs. PPARα agonists (fibrates) are used to treat dyslipidemia by decreasing triglyceride and increasing high-density lipoprotein (HDL) levels. PPARγ agonists (thiazolidinediones) are used to treat Type 2 diabetes mellitus by improving insulin sensitivity. PPARα/γ (dual) agonists are supposed to treat both pathological conditions at once. In contrast, PPARβ/δ agonists are not in clinical use. Although activators of PPARs were initially considered to have favorable effects on the risk factors for cardiovascular disease, their cardiovascular safety is controversial. Here, we discuss the implications of PPARs in vascular biology regarding cardiac pathology and focus on the outcomes of clinical studies evaluating their benefits in cardiovascular diseases.
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Meyer N, Richter K, Brodowski L, von Kaisenberg C, Melk A, Schmidt B, Limbourg FP, Schröder-Heurich B, von Versen-Höynck F. Impairment of endothelial progenitor cells in women after kidney transplantation. Microcirculation 2023; 30:e12794. [PMID: 36484638 DOI: 10.1111/micc.12794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 11/04/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The long-term survival of kidney transplant patients has substantially improved. However, there is a higher risk for cardiovascular events after transplantation, partly due to immunosuppression. A diminished number of endothelial progenitor cells (EPCs), which play an important role in angiogenesis and the repair of endothelial damage, are associated with an increased cardiovascular risk. The aim of this study was to evaluate whether kidney transplantation affects EPCs in women. METHODS Twenty-four healthy women and 22 female kidney transplant recipients were recruited. The ratio of angiogenic and non-angiogenic circulating progenitor cells (CPCs) was determined by multicolor flow cytometry and related to clinical parameters. Cord blood-derived endothelial colony-forming cells (ECFCs), a proliferative subgroup of endothelial progenitor cells, were treated with pooled sera from transplant patients or healthy controls and tested for their functional integrity using in vitro models. RESULTS Kidney transplant recipients displayed a reduced ratio of angiogenic and non-angiogenic CPCs compared to healthy controls. Differences were especially pronounced in premenopausal women. Exposure to sera of transplanted women led to a significant impairment of ECFC proliferation, migration, and angiogenesis ability. CONCLUSIONS Alterations of EPC populations may contribute to the higher cardiovascular risks after organ transplantation and should be considered in therapeutic strategies.
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Affiliation(s)
- Nadia Meyer
- Gynecology Research Unit, Hannover Medical School, Hannover, Germany
| | - Katja Richter
- Gynecology Research Unit, Hannover Medical School, Hannover, Germany
| | - Lars Brodowski
- Gynecology Research Unit, Hannover Medical School, Hannover, Germany.,Department of Obstetrics and Gynecology, Hannover Medical School, Hannover, Germany
| | | | - Anette Melk
- Children's Hospital, Hannover Medical School, Hannover, Germany
| | - Bernhard Schmidt
- Department of Nephrology, Hannover Medical School, Hannover, Germany
| | - Florian P Limbourg
- Department of Nephrology, Vascular Medicine Research, Hannover Medical School, Hannover, Germany
| | | | - Frauke von Versen-Höynck
- Gynecology Research Unit, Hannover Medical School, Hannover, Germany.,Department of Obstetrics and Gynecology, Hannover Medical School, Hannover, Germany
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Wang Y, Wei J, Zhang P, Zhang X, Wang Y, Chen W, Zhao Y, Cui X. Neuregulin-1, a potential therapeutic target for cardiac repair. Front Pharmacol 2022; 13:945206. [PMID: 36120374 PMCID: PMC9471952 DOI: 10.3389/fphar.2022.945206] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
NRG1 (Neuregulin-1) is an effective cardiomyocyte proliferator, secreted and released by endothelial vascular cells, and affects the cardiovascular system. It plays a major role in heart growth, proliferation, differentiation, apoptosis, and other cardiovascular processes. Numerous experiments have shown that NRG1 can repair the heart in the pathophysiology of atherosclerosis, myocardial infarction, ischemia reperfusion, heart failure, cardiomyopathy and other cardiovascular diseases. NRG1 can connect related signaling pathways through the NRG1/ErbB pathway, which form signal cascades to improve the myocardial microenvironment, such as regulating cardiac inflammation, oxidative stress, necrotic apoptosis. Here, we summarize recent research advances on the molecular mechanisms of NRG1, elucidate the contribution of NRG1 to cardiovascular disease, discuss therapeutic approaches targeting NRG1 associated with cardiovascular disease, and highlight areas for future research.
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Affiliation(s)
- Yan Wang
- First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Jianliang Wei
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Peng Zhang
- First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Xin Zhang
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yifei Wang
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Wenjing Chen
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yanan Zhao
- First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
- *Correspondence: Yanan Zhao, ; Xiangning Cui,
| | - Xiangning Cui
- Department of Cardiovascular, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Yanan Zhao, ; Xiangning Cui,
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Kim SE, Jeong SI, Shim KM, Jang K, Park JS, Lim YM, Kang SS. In Vivo Evaluation of Gamma-Irradiated and Heparin-Immobilized Small-Diameter Polycaprolactone Vascular Grafts with VEGF in Aged Rats. Polymers (Basel) 2022; 14:polym14061265. [PMID: 35335595 PMCID: PMC8955708 DOI: 10.3390/polym14061265] [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: 12/31/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 01/19/2023] Open
Abstract
The effectiveness of small-diameter vascular grafts depends on their antithrombogenic properties and ability to undergo accelerated endothelialization. The extreme hydrophobic nature of poly(ε-caprolactone) (PCL) hinders vascular tissue integration, limiting its use in medical implants. To enhance the antithrombogenicity of PCL as a biomaterial, we grafted 2-aminoethyl methacrylate (AEMA) hydrochloride onto the PCL surface using gamma irradiation; developed a biodegradable heparin-immobilized PCL nanofibrous scaffold using gamma irradiation and N-(3-dimethylaminopropyl)-N′-ethyl carbodiimide hydrochloride/N-hydroxysuccinimide reaction chemistry; and incorporated vascular endothelial growth factor (VEGF) into the scaffold to promote vascular endothelial cell proliferation and prevent thrombosis on the vascular grafts. We assessed the physicochemical properties of PCL, heparin-AEMA-PCL (H-PCL), and VEGF-loaded heparin-AEMA-PCL (VH-PCL) vascular grafts using scanning electron microscopy, attenuated total reflection–Fourier transform infrared spectroscopy, toluidine blue O staining, and fibrinogen adsorption and surface wettability measurement. In addition, we implanted the vascular grafts into 24-month-old Sprague Dawley rats and evaluated them for 3 months. The H-PCL and VH-PCL vascular grafts improved the recovery of blood vessel function by promoting the proliferation of endothelial cells and preventing thrombosis in clinical and histological evaluation, indicating their potential to serve as functional vascular grafts in vascular tissue engineering.
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Affiliation(s)
- Se-Eun Kim
- BK21 FOUR Program, Department of Veterinary Surgery, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea; (S.-E.K.); (K.-M.S.); (K.J.)
- Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Sung-In Jeong
- Advanced Radiation Technology, Korea Atomic Energy Research Institute, Jeongeup-si 56212, Korea; (S.-I.J.); (J.-S.P.)
| | - Kyung-Mi Shim
- BK21 FOUR Program, Department of Veterinary Surgery, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea; (S.-E.K.); (K.-M.S.); (K.J.)
- Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Kwangsik Jang
- BK21 FOUR Program, Department of Veterinary Surgery, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea; (S.-E.K.); (K.-M.S.); (K.J.)
- Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Jong-Seok Park
- Advanced Radiation Technology, Korea Atomic Energy Research Institute, Jeongeup-si 56212, Korea; (S.-I.J.); (J.-S.P.)
| | - Youn-Mook Lim
- Advanced Radiation Technology, Korea Atomic Energy Research Institute, Jeongeup-si 56212, Korea; (S.-I.J.); (J.-S.P.)
- Correspondence: (Y.-M.L.); (S.-S.K.); Tel.: +82-63-570-3065 (Y.-M.L.); +82-62-530-2877 (S.S.K.)
| | - Seong-Soo Kang
- BK21 FOUR Program, Department of Veterinary Surgery, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea; (S.-E.K.); (K.-M.S.); (K.J.)
- Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
- Correspondence: (Y.-M.L.); (S.-S.K.); Tel.: +82-63-570-3065 (Y.-M.L.); +82-62-530-2877 (S.S.K.)
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Jiang Y, Ji JY. Progerin-Induced Impairment in Wound Healing and Proliferation in Vascular Endothelial Cells. FRONTIERS IN AGING 2022; 3:844885. [PMID: 35821855 PMCID: PMC9261432 DOI: 10.3389/fragi.2022.844885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 01/27/2022] [Indexed: 11/29/2022]
Abstract
Progerin as a mutated isoform of lamin A protein was first known to induce premature atherosclerosis progression in patients with Hutchinson-Gilford progeria syndrome (HGPS), and its role in provoking an inflammatory response in vascular cells and accelerating cell senescence has been investigated recently. However, how progerin triggers endothelial dysfunction that often occurs at the early stage of atherosclerosis in a mechanical environment has not been studied intensively. Here, we generated a stable endothelial cell line that expressed progerin and examined its effects on endothelial wound repair under laminar flow. We found decreased wound healing rate in progerin-expressing ECs under higher shear stress compared with those under low shear. Furthermore, the decreased wound recovery could be due to reduced number of cells at late mitosis, suggesting potential interference by progerin with endothelial proliferation. These findings provided insights into how progerin affects endothelial mechanotransduction and may contribute to the disruption of endothelial integrity in HGPS vasculature, as we continue to examine the mechanistic effect of progerin in shear-induced endothelial functions.
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Abstract
Vascular senescence plays a vital role in cardiovascular diseases and it is closely related to cellular senescence. At the molecular level, aging begins with a single cell, and it is characterized by telomere shortening, mitochondrial dysfunction, stem cell exhaustion, epigenetic changes, and so on. Epigenetics is an independent discipline that modifies DNA activity without altering the DNA sequence. The application of epigenetics helps to alleviate the occurrence of human diseases, inhibit senescence, and even inhibit tumor occurrence. Epigenetics mainly includes the modification of DNA, histone, and noncoding RNA. Herein, the application of epigenetics in vascular senescence and aging has been reviewed to provide the prospects and innovative inspirations for future research.
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Iwata H, Minamino T. Identification of a novel therapeutic target in vascular dysfunction: a showcase of reverse and forward translational research linking bench to bedside. Eur Heart J 2021; 43:501-503. [PMID: 34240127 DOI: 10.1093/eurheartj/ehab263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hiroshi Iwata
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.,Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
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Suzuki H, Mikami T, Iwahara N, Akiyama Y, Wanibuchi M, Komatsu K, Yokoyama R, Hirano T, Hosoda R, Horio Y, Kuno A, Mikuni N. Aging-associated inflammation and fibrosis in arachnoid membrane. BMC Neurol 2021; 21:169. [PMID: 33882882 PMCID: PMC8058966 DOI: 10.1186/s12883-021-02202-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 04/13/2021] [Indexed: 05/31/2023] Open
Abstract
Background The physiological and pathological significance of the arachnoid membrane (AM) is still unknown. In this study, we investigated various characteristics of the AM, focusing on the influence of inflammation and fibrosis. Methods Small pieces of AM sample were obtained during neurosurgical procedures from 74 cases. The clinical and pathological characteristics of the hyperplastic AM group (≥ 50 μm) and the non-hyperplastic AM group (< 50 μm) were compared. Then, potential correlations between AM thickness and clinical characteristics were analyzed. Moreover, VEGFα, TGFβ, and TGFα levels were quantitated by real time PCR. Then, the potential correlations between AM thickness and these inflammatory or anti-inflammatory markers, and the influence of the original disease were calculated. Results The median age of the patients in hyperplastic AM group was significantly older than that of the non-hyperplastic AM group. Moreover, the number of fibroblasts, CD68+ cells, CD86+ cells, and CD206+ cells in the hyperplastic AM group was significantly higher than that in the non-hyperplastic AM group. The AM thickness was significantly correlated to age and number of fibroblasts, CD68+ cells, CD86+ cells, and CD206+ cells. The thickness of the AM was significantly correlated to the messenger RNA expression levels of VEGFα (ρ = 0.337), and the VEGFα expression levels were significantly correlated with TGFβ and TNFα. Conclusions The AM hyperplasia was influenced by aging and could be a result of inflammation and fibrosis through cytokine secretion from the inflammatory cells and fibroblasts in the AM.
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Affiliation(s)
- Hime Suzuki
- Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Takeshi Mikami
- Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, Japan.
| | - Naotoshi Iwahara
- Department of Pharmacology, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Yukinori Akiyama
- Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Masahiko Wanibuchi
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Katsuya Komatsu
- Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Rintaro Yokoyama
- Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Tsukasa Hirano
- Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Ryusuke Hosoda
- Department of Pharmacology, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Yoshiyuki Horio
- Department of Pharmacology, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Atsushi Kuno
- Department of Pharmacology, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Nobuhiro Mikuni
- Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, Japan
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12
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Molecules and Mechanisms to Overcome Oxidative Stress Inducing Cardiovascular Disease in Cancer Patients. Life (Basel) 2021; 11:life11020105. [PMID: 33573162 PMCID: PMC7911715 DOI: 10.3390/life11020105] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/18/2021] [Accepted: 01/27/2021] [Indexed: 02/06/2023] Open
Abstract
Reactive oxygen species (ROS) are molecules involved in signal transduction pathways with both beneficial and detrimental effects on human cells. ROS are generated by many cellular processes including mitochondrial respiration, metabolism and enzymatic activities. In physiological conditions, ROS levels are well-balanced by antioxidative detoxification systems. In contrast, in pathological conditions such as cardiovascular, neurological and cancer diseases, ROS production exceeds the antioxidative detoxification capacity of cells, leading to cellular damages and death. In this review, we will first describe the biology and mechanisms of ROS mediated oxidative stress in cardiovascular disease. Second, we will review the role of oxidative stress mediated by oncological treatments in inducing cardiovascular disease. Lastly, we will discuss the strategies that potentially counteract the oxidative stress in order to fight the onset and progression of cardiovascular disease, including that induced by oncological treatments.
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13
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Pregnancy by Assisted Reproductive Technology Is Associated with Shorter Telomere Length in Neonates. Int J Mol Sci 2020; 21:ijms21249688. [PMID: 33353140 PMCID: PMC7766074 DOI: 10.3390/ijms21249688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/12/2020] [Accepted: 12/15/2020] [Indexed: 12/13/2022] Open
Abstract
Telomere length (TL) influences the development of lifestyle-related diseases, and neonatal TL may influence their prevalence. Various factors have been reported to affect neonatal TL. Although the fetus is exposed to multiple conditions in utero, the main factors affecting the shortening of neonatal TL are still not known. In this study, we sought to identify factors that influence fetal TL. A total of 578 mother-newborn pairs were included for TL analysis. TL was measured in genomic DNA extracted from cord blood samples using quantitative PCR. The clinical factors examined at enrollment included the following intrauterine environmental factors: maternal age, assisted reproductive technology (ART) used, body mass index (BMI), gestational diabetes mellitus (GDM), maternal stress, smoking, alcohol consumption, preterm delivery, small-for-gestational-age, neonatal sex, and placental weight. Univariate and multivariate regression analyses were used to verify the relationship between neonatal TL and these clinical factors. The median neonatal TL to single-copy gene ratio was 1.0. Pregnancy with ART was among the 11 factors associated with shorter neonatal TL. From multiple regression analysis, we determined that neonatal TL was significantly shorter for pregnancies in the ART group than in the other groups. We conclude that pregnancy with ART is associated with shorter neonatal TL.
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14
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Gao P, Gao P, Choi M, Chegireddy K, Slivano OJ, Zhao J, Zhang W, Long X. Transcriptome analysis of mouse aortae reveals multiple novel pathways regulated by aging. Aging (Albany NY) 2020; 12:15603-15623. [PMID: 32805724 PMCID: PMC7467355 DOI: 10.18632/aging.103652] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/22/2020] [Indexed: 01/10/2023]
Abstract
Vascular aging has been documented as a vital process leading to arterial dysfunction and age-related cardiovascular and cerebrovascular diseases. However, our understanding of the molecular underpinnings of age-related phenotypes in the vascular system is incomplete. Here we performed bulk RNA sequencing in young and old mouse aortae to elucidate age-associated changes in the transcriptome. Results showed that the majority of upregulated pathways in aged aortae relate to immune response, including inflammation activation, apoptotic clearance, and phagocytosis. The top downregulated pathway in aged aortae was extracellular matrix organization. Additionally, protein folding control and stress response pathways were downregulated in the aged vessels, with an array of downregulated genes encoding heat shock proteins (HSPs). We also found that circadian core clock genes were differentially expressed in young versus old aortae. Finally, transcriptome analysis combined with protein expression examination and smooth muscle cell (SMC) lineage tracing revealed that SMCs in aged aortae retained the differentiated phenotype, with an insignificant decrease in SMC marker gene expression. Our results therefore unveiled critical pathways regulated by arterial aging in mice, which will provide important insight into strategies to defy vascular aging and age-associated vascular diseases.
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Affiliation(s)
- Ping Gao
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA
| | - Pan Gao
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Mihyun Choi
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA
| | - Kavya Chegireddy
- School of Public Health, University at Albany, Albany, NY 12222, USA
| | - Orazio J Slivano
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Jinjing Zhao
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA
| | - Wei Zhang
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Xiaochun Long
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA.,Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
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15
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Su X, Xu Y, Tan Z, Wang X, Yang P, Su Y, Jiang Y, Qin S, Shang L. Prediction for cardiovascular diseases based on laboratory data: An analysis of random forest model. J Clin Lab Anal 2020; 34:e23421. [PMID: 32725839 PMCID: PMC7521325 DOI: 10.1002/jcla.23421] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/19/2020] [Accepted: 02/11/2020] [Indexed: 12/11/2022] Open
Abstract
Background To establish a prediction model for cardiovascular diseases (CVD) in the general population based on random forests. Methods A retrospective study involving 498 subjects was conducted in Xi'an Medical University between 2011 and 2018. The random forest algorithm was used to screen out the variables that greatly affected the CVD prediction and to establish a prediction model. The important variables were included in the multifactorial logistic regression analysis. The area under the curve (AUC) was compared between logistic regression model and random forest model. Results The random forest model revealed the variables, including the age, body mass index (BMI), fasting blood glucose (FBG), diastolic blood pressure (DBP), triglyceride (TG), systolic blood pressure (SBP), total cholesterol (TC), waist circumference, and high‐density lipoprotein‐cholesterol (HDL‐C), were more significant for CVD prediction; the AUC was 0.802 in CVD prediction. Multifactorial logistic regression analysis indicated that the risk factors for CVD included the age [odds ratio (OR): 1.14, 95% confidence intervals (CI): 1.10‐1.17, P < .001], BMI (OR: 1.13, 95% CI: 1.06‐1.20, P < .001), TG (OR: 1.11, 95% CI: 1.02‐1.22, P = .023), and DBP (OR: 1.04, 95% CI: 1.02‐1.06, P = .001); the AUC was 0.843 in CVD prediction. The established logistic regression prediction model was Logit P = Log[P/(1 − P)] = −11.47 + 0.13 × age + 0.12 × BMI + 0.11 × TG + 0.04 × DBP; P = 1/[1 + exp(−Logit P)]. People were prone to develop CVD at the time of P > .51. Conclusions A prediction model for CVD is developed in the general population based on random forests, which provides a simple tool for the early prediction of CVD.
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Affiliation(s)
- Xi Su
- Department of Health Statistics, Fourth Military Medical University, Xi'an, China.,School of Health Management, Xi'an Medical University, Xi'an, China
| | - Yongyong Xu
- Department of Health Statistics, Fourth Military Medical University, Xi'an, China
| | - Zhijun Tan
- Department of Health Statistics, Fourth Military Medical University, Xi'an, China
| | - Xia Wang
- Department of Health Statistics, Fourth Military Medical University, Xi'an, China
| | - Peng Yang
- Department of Health Statistics, Fourth Military Medical University, Xi'an, China
| | - Yani Su
- Data Center, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Yangyang Jiang
- School of Health Management, Xi'an Medical University, Xi'an, China
| | - Sijia Qin
- School of Stomatology, Xi'an Medical University, Xi'an, China
| | - Lei Shang
- Department of Health Statistics, Fourth Military Medical University, Xi'an, China
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16
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Flora GD, Nayak MK. A Brief Review of Cardiovascular Diseases, Associated Risk Factors and Current Treatment Regimes. Curr Pharm Des 2020; 25:4063-4084. [PMID: 31553287 DOI: 10.2174/1381612825666190925163827] [Citation(s) in RCA: 177] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 09/16/2019] [Indexed: 12/22/2022]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of premature death and disability in humans and their incidence is on the rise globally. Given their substantial contribution towards the escalating costs of health care, CVDs also generate a high socio-economic burden in the general population. The underlying pathogenesis and progression associated with nearly all CVDs are predominantly of atherosclerotic origin that leads to the development of coronary artery disease, cerebrovascular disease, venous thromboembolism and, peripheral vascular disease, subsequently causing myocardial infarction, cardiac arrhythmias or stroke. The aetiological risk factors leading to the onset of CVDs are well recognized and include hyperlipidaemia, hypertension, diabetes, obesity, smoking and, lack of physical activity. They collectively represent more than 90% of the CVD risks in all epidemiological studies. Despite high fatality rate of CVDs, the identification and careful prevention of the underlying risk factors can significantly reduce the global epidemic of CVDs. Beside making favorable lifestyle modifications, primary regimes for the prevention and treatment of CVDs include lipid-lowering drugs, antihypertensives, antiplatelet and anticoagulation therapies. Despite their effectiveness, significant gaps in the treatment of CVDs remain. In this review, we discuss the epidemiology and pathology of the major CVDs that are prevalent globally. We also determine the contribution of well-recognized risk factors towards the development of CVDs and the prevention strategies. In the end, therapies for the control and treatment of CVDs are discussed.
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Affiliation(s)
- Gagan D Flora
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, United States
| | - Manasa K Nayak
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, United States
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17
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CD9 induces cellular senescence and aggravates atherosclerotic plaque formation. Cell Death Differ 2020; 27:2681-2696. [PMID: 32346137 DOI: 10.1038/s41418-020-0537-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/26/2022] Open
Abstract
CD9, a 24 kDa tetraspanin membrane protein, is known to regulate cell adhesion and migration, cancer progression and metastasis, immune and allergic responses, and viral infection. CD9 is upregulated in senescent endothelial cells, neointima hyperplasia, and atherosclerotic plaques. However, its role in cellular senescence and atherosclerosis remains undefined. We investigated the potential mechanism for CD9-mediated cellular senescence and its role in atherosclerotic plaque formation. CD9 knockdown in senescent human umbilical vein endothelial cells significantly rescued senescence phenotypes, while CD9 upregulation in young cells accelerated senescence. CD9 regulated cellular senescence through a phosphatidylinositide 3 kinase-AKT-mTOR-p53 signal pathway. CD9 expression increased in arterial tissues from humans and rats with age, and in atherosclerotic plaques in humans and mice. Anti-mouse CD9 antibody noticeably prevented the formation of atherosclerotic lesions in ApoE-/- mice and Ldlr-/- mice. Furthermore, CD9 ablation in ApoE-/- mice decreased atherosclerotic lesions in aorta and aortic sinus. These results suggest that CD9 plays critical roles in endothelial cell senescence and consequently the pathogenesis of atherosclerosis, implying that CD9 is a novel target for prevention and treatment of vascular aging and atherosclerosis.
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18
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Piccirillo F, Carpenito M, Verolino G, Chello C, Nusca A, Lusini M, Spadaccio C, Nappi F, Di Sciascio G, Nenna A. Changes of the coronary arteries and cardiac microvasculature with aging: Implications for translational research and clinical practice. Mech Ageing Dev 2019; 184:111161. [PMID: 31647940 DOI: 10.1016/j.mad.2019.111161] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 10/09/2019] [Accepted: 10/14/2019] [Indexed: 12/28/2022]
Abstract
Aging results in functional and structural changes in the cardiovascular system, translating into a progressive increase of mechanical vessel stiffness, due to a combination of changes in micro-RNA expression patterns, autophagy, arterial calcification, smooth muscle cell migration and proliferation. The two pivotal mechanisms of aging-related endothelial dysfunction are oxidative stress and inflammation, even in the absence of clinical disease. A comprehensive understanding of the aging process is emerging as a primary concern in literature, as vascular aging has recently become a target for prevention and treatment of cardiovascular disease. Change of life-style, diet, antioxidant regimens, anti-inflammatory treatments, senolytic drugs counteract the pro-aging pathways or target senescent cells modulating their detrimental effects. Such therapies aim to reduce the ineluctable burden of age and contrast aging-associated cardiovascular dysfunction. This narrative review intends to summarize the macrovascular and microvascular changes related with aging, as a better understanding of the pathways leading to arterial aging may contribute to design new mechanism-based therapeutic approaches to attenuate the features of vascular senescence and its clinical impact on the cardiovascular system.
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Affiliation(s)
| | | | | | - Camilla Chello
- Dermatology, Università "La Sapienza" di Roma, Rome, Italy
| | | | - Mario Lusini
- Cardiovascular surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | | | - Francesco Nappi
- Cardiac surgery, Centre Cardiologique du Nord de Saint Denis, Paris, France
| | | | - Antonio Nenna
- Cardiovascular surgery, Università Campus Bio-Medico di Roma, Rome, Italy.
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19
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Sun R, He T, Pan Y, Katusic ZS. Effects of senescence and angiotensin II on expression and processing of amyloid precursor protein in human cerebral microvascular endothelial cells. Aging (Albany NY) 2019; 10:100-114. [PMID: 29348391 PMCID: PMC5811245 DOI: 10.18632/aging.101362] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 01/10/2018] [Indexed: 01/18/2023]
Abstract
The present study was designed to determine the effects of senescence and angiotensin II (Ang II) on expression and processing of amyloid precursor protein (APP) in human brain microvascular endothelial cells (BMECs). Senescence caused a decrease in APP expression thereby resulting in reduced secretion of soluble APPα (sAPPα). In contrast, β-site APP cleaving enzyme (BACE1) expression and production of amyloid β (Aβ)40 were increased in senescent endothelium. Importantly, in senescent human BMECs, treatment with BACE1 inhibitor IV inhibited Aβ generation and increased sAPPα production by enhancing a disintegrin and metalloprotease (ADAM)10 expression. Furthermore, Ang II impaired expression of ADAM10 and significantly reduced generation of sAPPα in senescent human BMECs. This inhibitory effect of Ang II was prevented by treatment with BACE1 inhibitor IV. Our results suggest that impairment of α-processing and shift to amyloidogenic pathway of APP contribute to endothelial dysfunction induced by senescence. Loss of sAPPα in senescent cells treated with Ang II exacerbates detrimental effects of senescence on APP processing. Notably, inhibition of BACE1 has beneficial effects on senescence induced endothelial dysfunction. Reported findings may help to explain contributions of senescent cerebral microvascular endothelium to development of cerebral amyloid angiopathy and Alzheimer’s disease (AD) pathology.
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Affiliation(s)
- Ruohan Sun
- Department of Neurology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150001, China.,Department of Anesthesiology and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Tongrong He
- Department of Anesthesiology and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Yujun Pan
- Department of Neurology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150001, China
| | - Zvonimir S Katusic
- Department of Anesthesiology and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
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20
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Shakeri H, Gevaert AB, Schrijvers DM, De Meyer GRY, De Keulenaer GW, Guns PJDF, Lemmens K, Segers VF. Neuregulin-1 attenuates stress-induced vascular senescence. Cardiovasc Res 2019. [PMID: 29528383 DOI: 10.1093/cvr/cvy059] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aims Cardiovascular ageing is a key determinant of life expectancy. Cellular senescence, a state of irreversible cell cycle arrest, is an important contributor to ageing due to the accumulation of damaged cells. Targeting cellular senescence could prevent age-related cardiovascular diseases. In this study, we investigated the effects of neuregulin-1 (NRG-1), an epidermal growth factor with cardioprotective and anti-atherosclerotic effects, on cellular senescence. Methods and results Senescence was induced in cultured rat aortic endothelial cells (ECs) and aortic smooth muscle cells (SMCs) by 2 h exposure to 30 µM hydrogen peroxide (H2O2). Cellular senescence was confirmed after 72 h using senescence-associated-β-galactosidase staining (SA-β-gal), cell surface area, and western blot analyses of SA pathways (acetyl-p53, p21). Recombinant human NRG-1 (rhNRG-1, 20 ng/mL) significantly reduced H2O2-induced senescence, as shown by a lower number of SA-β-gal positive cells, smaller surface area and lower expression of acetyl-p53. In C57BL/6 male mice rendered diabetic with streptozotocin (STZ), rhNRG-1 attenuated cellular senescence in aortic ECs and SMCs. Next, we created mice with SMC-specific knockdown of the NRG-1 receptor ErbB4. Aortic SMCs isolated from SMC-specific ErbB4 deficient mice (ErbB4f/+ SM22α-Cre+) showed earlier cellular senescence in vitro compared with wild-type (ErbB4+/+ SM22α-Cre+) SMCs. Furthermore, when rendered diabetic with STZ, ErbB4f/+ SM22α-Cre+ male mice showed significantly more vascular senescence than their diabetic wild-type littermates and had increased mortality. Conclusions This study is the first to explore the role of NRG-1 in vascular senescence. Our data demonstrate that NRG-1 markedly inhibits stress-induced premature senescence in vascular cells in vitro and in the aorta of diabetic mice in vivo. Consistently, deficiency in the NRG-1 receptor ErbB4 provokes cellular senescence in vitro as well as in vivo.
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Affiliation(s)
- Hadis Shakeri
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Andreas B Gevaert
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium.,Department of Cardiology.,Laboratory for Cellular and Molecular Cardiology, Department of Cardiology, Antwerp University Hospital (UZA), Antwerp, Belgium
| | - Dorien M Schrijvers
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Guido R Y De Meyer
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Gilles W De Keulenaer
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Pieter-Jan D F Guns
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Katrien Lemmens
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Vincent F Segers
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium.,Department of Cardiology
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21
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Yokoyama M, Shimizu I, Nagasawa A, Yoshida Y, Katsuumi G, Wakasugi T, Hayashi Y, Ikegami R, Suda M, Ota Y, Okada S, Fruttiger M, Kobayashi Y, Tsuchida M, Kubota Y, Minamino T. p53 plays a crucial role in endothelial dysfunction associated with hyperglycemia and ischemia. J Mol Cell Cardiol 2019; 129:105-117. [PMID: 30790589 DOI: 10.1016/j.yjmcc.2019.02.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 02/12/2019] [Accepted: 02/16/2019] [Indexed: 12/23/2022]
Abstract
p53 is a guardian of the genome that protects against carcinogenesis. There is accumulating evidence that p53 is activated with aging. Such activation has been reported to contribute to various age-associated pathologies, but its role in vascular dysfunction is largely unknown. The aim of this study was to investigate whether activation of endothelial p53 has a pathological effect in relation to endothelial function. We established endothelial p53 loss-of-function and gain-of-function models by breeding endothelial-cell specific Cre mice with floxed Trp53 or floxed Mdm2/Mdm4 mice, respectively. Then we induced diabetes by injection of streptozotocin. In the diabetic state, endothelial p53 expression was markedly up-regulated and endothelium-dependent vasodilatation was significantly impaired. Impairment of vasodilatation was significantly ameliorated in endothelial p53 knockout (EC-p53 KO) mice, and deletion of endothelial p53 also significantly enhanced the induction of angiogenesis by ischemia. Conversely, activation of endothelial p53 by deleting Mdm2/Mdm4 reduced both endothelium-dependent vasodilatation and ischemia-induced angiogenesis. Introduction of p53 into human endothelial cells up-regulated the expression of phosphatase and tensin homolog (PTEN), thereby reducing phospho-eNOS levels. Consistent with these results, the beneficial impact of endothelial p53 deletion on endothelial function was attenuated in EC-p53 KO mice with an eNOS-deficient background. These results show that endothelial p53 negatively regulates endothelium-dependent vasodilatation and ischemia-induced angiogenesis, suggesting that inhibition of endothelial p53 could be a novel therapeutic target in patients with metabolic disorders.
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Affiliation(s)
- Masataka Yokoyama
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Ayako Nagasawa
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Department of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Takayuki Wakasugi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yuka Hayashi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Ryutaro Ikegami
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yusuke Ota
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Sho Okada
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Marcus Fruttiger
- Institute of Ophthalmology, University College London, London EC1V 9EL, UK
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Masanori Tsuchida
- Department of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan.
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22
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Jiang Y, Ji JY. Understanding lamin proteins and their roles in aging and cardiovascular diseases. Life Sci 2018; 212:20-29. [DOI: 10.1016/j.lfs.2018.09.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/12/2018] [Accepted: 09/14/2018] [Indexed: 02/04/2023]
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23
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Si S, Nakajima-Takagi Y, Iga T, Tsuji M, Hou L, Oshima M, Koide S, Saraya A, Yamazaki S, Takubo K, Kubota Y, Minamino T, Iwama A. Hematopoietic insults damage bone marrow niche by activating p53 in vascular endothelial cells. Exp Hematol 2018; 63:41-51.e1. [DOI: 10.1016/j.exphem.2018.04.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 04/21/2018] [Accepted: 04/22/2018] [Indexed: 01/01/2023]
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24
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Kayamori H, Shimizu I, Yoshida Y, Hayashi Y, Suda M, Ikegami R, Katsuumi G, Wakasugi T, Minamino T. Amlodipine Inhibits Vascular Cell Senescence and Protects Against Atherogenesis Through the Mechanism Independent of Calcium Channel Blockade. Int Heart J 2018; 59:607-613. [PMID: 29681573 DOI: 10.1536/ihj.17-265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Vascular cells have a finite lifespan and eventually enter irreversible growth arrest called cellular senescence. We have previously suggested that vascular cell senescence contributes to the pathogenesis of human atherosclerosis. Amlodipine is a mixture of two enantiomers, one of which (S- enantiomer) has L-type channel blocking activity, while the other (R+ enantiomer) shows ~1000-fold weaker channel blocking activity than S- enantiomer and has other unknown effects. It has been reported that amlodipine inhibits the progression of atherosclerosis in humans, but the molecular mechanism of this beneficial effect remains unknown. Apolipoprotein E-deficient mice on a high-fat diet were treated with amlodipine, its R+ enantiomer or vehicle for eight weeks. Compared with vehicle treatment, both amlodipine and the R+ enantiomer significantly reduced the number of senescent vascular cells and inhibited plaque formation to a similar extent. Expression of the pro-inflammatory molecule interleukin-1β was markedly upregulated in vehicle-treated mice, but was inhibited to a similar extent by treatment with amlodipine or the R+ enantiomer. Likewise, activation of p53 (a critical inducer of senescence) was markedly suppressed by treatment with amlodipine or the R+ enantiomer. These results suggest that amlodipine inhibits vascular cell senescence and protects against atherogenesis at least partly by a mechanism that is independent of calcium channel blockade.
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Affiliation(s)
- Hiromi Kayamori
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences.,Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences.,Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences
| | - Yuka Hayashi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Ryutaro Ikegami
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Takayuki Wakasugi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
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25
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Leszczynska A, Murphy JM. Vascular Calcification: Is it rather a Stem/Progenitor Cells Driven Phenomenon? Front Bioeng Biotechnol 2018; 6:10. [PMID: 29479528 PMCID: PMC5811524 DOI: 10.3389/fbioe.2018.00010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/22/2018] [Indexed: 12/21/2022] Open
Abstract
Vascular calcification (VC) has witnessed a surge of interest. Vasculature is virtually an omnipresent organ and has a notably high capacity for repair throughout embryonic and adult life. Of the vascular diseases, atherosclerosis is a leading cause of morbidity and mortality on account of ectopic cartilage and bone formation. Despite the identification of a number of risk factors, all the current theories explaining pathogenesis of VC in atherosclerosis are far from complete. The most widely accepted response to injury theory and smooth muscle transdifferentiation to explain the VC observed in atherosclerosis is being challenged. Recent focus on circulating and resident progenitor cells in the vasculature and their role in atherogenesis and VC has been the driving force behind this review. This review discusses intrinsic cellular players contributing to fate determination of cells and tissues to form ectopic cartilage and bone formation.
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Affiliation(s)
- Aleksandra Leszczynska
- Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - J Mary Murphy
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
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26
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Ghebre YT, Yakubov E, Wong WT, Krishnamurthy P, Sayed N, Sikora AG, Bonnen MD. Vascular Aging: Implications for Cardiovascular Disease and Therapy. TRANSLATIONAL MEDICINE (SUNNYVALE, CALIF.) 2016; 6:183. [PMID: 28932625 PMCID: PMC5602592 DOI: 10.4172/2161-1025.1000183] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The incidence and prevalence of cardiovascular disease is highest among the elderly, in part, due to deleterious effects of advancing age on the heart and blood vessels. Aging, a known cardiovascular risk factor, is progressively associated with structural and functional changes to the vasculature including hemodynamic disturbance due to increased oxidative stress, premature cellular senescence and impairments in synthesis and/or secretion of endothelium-derived vasoactive molecules. These molecular and physiological changes lead to vessel wall stiffening and thickening, as well as other vascular complications that culminate to loss of vascular tone regulation and endothelial function. Intriguingly, the vessel wall, a biochemically active structure composed of collagen, connective tissue, smooth muscle and endothelial cells, is adversely affected by processes involved in premature or normal aging. Notably, the inner most layer of the vessel wall, the endothelium, becomes senescent and dysfunctional with advancing age. As a result, its ability to release vasoactive molecules such as acetylcholine (ACh), prostacyclin (PGI2), endothelium-derived hyperpolarizing factor (EDHF), and nitric oxide (NO) is reduced and the cellular response to these molecules is also impaired. By contrast, the vascular endothelium increases its generation and release of reactive oxygen (ROS) and nitrogen (RNS) species, vasoconstrictors such as endothelin (ET) and angiotensin (AT), and endogenous inhibitors of NO synthases (NOSs) to block NO. This skews the balance of the endothelium in favor of the release of highly tissue reactive and harmful molecules that promote DNA damage, telomere erosion, senescence, as well as stiffened and hardened vessel wall that is prone to the development of hypertension, diabetes, atherosclerosis and other cardiovascular risk factors. This Review discusses the impact of advancing age on cardiovascular health, and highlights the cellular and molecular mechanisms that underlie age-associated vascular changes. In addition, the role of pharmacological interventions in preventing or delaying age-related cardiovascular disease is discussed.
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Affiliation(s)
- Yohannes T Ghebre
- Department of Radiation Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Eduard Yakubov
- phaRNA Comprehensive RNA Technologies, Houston, Texas, USA
| | - Wing Tak Wong
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Prasanna Krishnamurthy
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Nazish Sayed
- Department of Medicine, Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
| | - Andrew G Sikora
- Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - Mark D Bonnen
- Department of Radiation Oncology, Baylor College of Medicine, Houston, Texas, USA
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27
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Meyer MR, Fredette NC, Daniel C, Sharma G, Amann K, Arterburn JB, Barton M, Prossnitz ER. Obligatory role for GPER in cardiovascular aging and disease. Sci Signal 2016; 9:ra105. [PMID: 27803283 DOI: 10.1126/scisignal.aag0240] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Pharmacological activation of the heptahelical G protein-coupled estrogen receptor (GPER) by selective ligands counteracts multiple aspects of cardiovascular disease. We thus expected that genetic deletion or pharmacological inhibition of GPER would further aggravate such disease states, particularly with age. To the contrary, we found that genetic ablation of Gper in mice prevented cardiovascular pathologies associated with aging by reducing superoxide (⋅O2-) formation by NADPH oxidase (Nox) specifically through reducing the expression of the Nox isoform Nox1 Blocking GPER activity pharmacologically with G36, a synthetic, small-molecule, GPER-selective blocker (GRB), decreased Nox1 abundance and ⋅O2- production to basal amounts in cells exposed to angiotensin II and in mice chronically infused with angiotensin II, reducing arterial hypertension. Thus, this study revealed a role for GPER activity in regulating Nox1 abundance and associated ⋅O2--mediated structural and functional damage that contributes to disease pathology. Our results indicated that GRBs represent a new class of drugs that can reduce Nox abundance and activity and could be used for the treatment of chronic disease processes involving excessive ⋅O2- formation, including arterial hypertension and heart failure.
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Affiliation(s)
- Matthias R Meyer
- University of New Mexico Health Sciences Center, Department of Internal Medicine, Albuquerque, NM 87131, USA
| | - Natalie C Fredette
- University of New Mexico Health Sciences Center, Department of Internal Medicine, Albuquerque, NM 87131, USA
| | - Christoph Daniel
- Friedrich-Alexander-University of Erlangen-Nürnberg, Department of Nephropathology, 91054 Erlangen, Germany
| | - Geetanjali Sharma
- University of New Mexico Health Sciences Center, Department of Internal Medicine, Albuquerque, NM 87131, USA
| | - Kerstin Amann
- Friedrich-Alexander-University of Erlangen-Nürnberg, Department of Nephropathology, 91054 Erlangen, Germany
| | - Jeffrey B Arterburn
- New Mexico State University, Department of Chemistry and Biochemistry, Las Cruces, NM 88003, USA
| | - Matthias Barton
- University of Zürich, Molecular Internal Medicine, 8057 Zürich, Switzerland
| | - Eric R Prossnitz
- University of New Mexico Health Sciences Center, Department of Internal Medicine, Albuquerque, NM 87131, USA.,University of New Mexico Comprehensive Cancer Center, Albuquerque, NM 87131, USA
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28
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Individual response to ionizing radiation. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:369-386. [PMID: 27919342 DOI: 10.1016/j.mrrev.2016.09.001] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/31/2016] [Accepted: 09/02/2016] [Indexed: 12/18/2022]
Abstract
The human response to ionizing radiation (IR) varies among individuals. The first evidence of the individual response to IR was reported in the beginning of the 20th century. Considering nearly one century of observations, we here propose three aspects of individual IR response: radiosensitivity for early or late adverse tissue events after radiotherapy on normal tissues (non-cancer effects attributable to cell death); radiosusceptibility for IR-induced cancers; and radiodegeneration for non-cancer effects that are often attributable to mechanisms other than cell death (e.g., cataracts and circulatory disease). All the molecular and cellular mechanisms behind IR-induced individual effects are not fully elucidated. However, some specific assays may help their quantification according to the dose and to the genetic status. Accumulated data on individual factors have suggested that the individual IR response cannot be ignored and raises some clinical and societal issues. The individual IR response therefore needs to be taken into account to better evaluate the risks related to IR exposure.
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29
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Zhou T, Zhang M, Zhao L, Li A, Qin X. Activation of Nrf2 contributes to the protective effect of Exendin-4 against angiotensin II-induced vascular smooth muscle cell senescence. Am J Physiol Cell Physiol 2016; 311:C572-C582. [PMID: 27488664 DOI: 10.1152/ajpcell.00093.2016] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 07/27/2016] [Indexed: 01/04/2023]
Abstract
Oxidative stress and impaired antioxidant defense are believed to be contributors to the cardiovascular aging process. The transcription factor nuclear factor-E2-related factor 2 (Nrf2) plays a key role in orchestrating cellular antioxidant defenses and maintaining redox homeostasis. Our previous study showed that Exendin-4, a glucagon-like peptide-1 analog, alleviates angiotensin II (ANG II)-induced vascular smooth muscle cell (VSMC) senescence by inhibiting Rac1 activation via cAMP/PKA (Zhao L, Li AQ, Zhou TF, Zhang MQ, Qin XM. Am J Physiol Cell Physiol 307: C1130-C1141, 2014). The objective of this study is to investigate if Nrf2 mediates the antisenescent effect of Exendin-4 in ANG II-induced VSMCs. Here we report that Exendin-4 triggered Nrf2 nuclear translocation, a downstream target of cAMP-responsive element-binding protein (CREB) and expressions of antioxidant genes heme oxygenase-1 (HO-1) and NAD(P)H quinone oxidoreductase-1 (NQO-1) in a dose- and time-dependent manner. In addition, knock-down of Nrf2 attenuated the inhibitory effects of Exendin-4 on ANG II-induced superoxidant generation and VSMC senescence. PKA/CREB pathway participated in the upregulations of HO-1 and NQO-1 induced by Exendin-4. Notably, our study revealed that Exendin-4 dose-dependently increased the acetylation of Nrf2 and the recruitment of transcriptional coactivator CREB binding protein (CBP) to Nrf2. The Exendin-4-induced Nrf2 transactivation was diminished in the presence of CBP small interfering RNA. Microscope imaging of Nrf2, as well as immunoblotting for Nrf2, showed that the Exendin-4-evoked Nrf2 acetylation favored its nuclear retention. Importantly, CBP silencing attenuated the suppressing effects of Exendin-4 on ANG II-induced VSMC senescence and superoxidant production. In conclusion, these results provide a mechanistic insight into how Nrf2 signaling mediates the antisenescent and antioxidative effects induced by Exendin-4 in VSMCs.
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Affiliation(s)
- Tengfei Zhou
- Institute of Cardiovascular Science, Peking University Health Science Center, Beijing, China; and Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Mengqian Zhang
- Institute of Cardiovascular Science, Peking University Health Science Center, Beijing, China; and Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Liang Zhao
- Institute of Cardiovascular Science, Peking University Health Science Center, Beijing, China; and Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Aiqin Li
- Institute of Cardiovascular Science, Peking University Health Science Center, Beijing, China; and Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Xiaomei Qin
- Institute of Cardiovascular Science, Peking University Health Science Center, Beijing, China; and Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China
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30
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Martín-Fernández B, Gredilla R. Mitochondria and oxidative stress in heart aging. AGE (DORDRECHT, NETHERLANDS) 2016; 38:225-238. [PMID: 27449187 PMCID: PMC5061683 DOI: 10.1007/s11357-016-9933-y] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 07/12/2016] [Indexed: 05/06/2023]
Abstract
As average lifespan of humans increases in western countries, cardiac diseases become the first cause of death. Aging is among the most important risk factors that increase susceptibility for developing cardiovascular diseases. The heart has very aerobic metabolism, and is highly dependent on mitochondrial function, since mitochondria generate more than 90 % of the intracellular ATP consumed by cardiomyocytes. In the last few decades, several investigations have supported the relevance of mitochondria and oxidative stress both in heart aging and in the development of cardiac diseases such as heart failure, cardiac hypertrophy, and diabetic cardiomyopathy. In the current review, we compile different studies corroborating this role. Increased mitochondria DNA instability, impaired bioenergetic efficiency, enhanced apoptosis, and inflammation processes are some of the events related to mitochondria that occur in aging heart, leading to reduced cellular survival and cardiac dysfunction. Knowing the mitochondrial mechanisms involved in the aging process will provide a better understanding of them and allow finding approaches to more efficiently improve this process.
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Affiliation(s)
- Beatriz Martín-Fernández
- Department of Physiology, Faculty of Medicine, Complutense University, Plaza Ramon y Cajal s/n, 28040, Madrid, Spain.
| | - Ricardo Gredilla
- Department of Physiology, Faculty of Medicine, Complutense University, Plaza Ramon y Cajal s/n, 28040, Madrid, Spain.
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31
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Whidden MA, Basgut B, Kirichenko N, Erdos B, Tümer N. Altered potassium ATP channel signaling in mesenteric arteries of old high salt-fed rats. J Exerc Nutrition Biochem 2016; 20:58-64. [PMID: 27508155 PMCID: PMC4977904 DOI: 10.20463/jenb.2016.06.20.2.8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 04/27/2016] [Accepted: 04/27/2016] [Indexed: 11/30/2022] Open
Abstract
[Purpose] Both aging and the consumption of a high salt diet are associated with clear changes in the vascular system that can lead to the development of cardiovascular disease; however the mechanisms are not clearly understood. Therefore, we examined whether aging and the consumption of excess salt alters the function of potassium ATP-dependent channel signaling in mesenteric arteries [Methods] Young (7 months) and old (29 months) Fischer 344 x Brown Norway rats were fed a control or a high salt diet (8% NaCl) for 12 days and mesenteric arteries were utilized for vascular reactivity measurements. [Results] Acetylcholine-induced endothelium relaxation was significantly reduced in old arteries (81 ± 4%) when compared with young arteries (92 ± 2%). Pretreatment with the potassium-ATP channel blocker glibenclamide reduced relaxation to acetylcholine in young arteries but did not alter dilation in old arteries. On a high salt diet, endothelium dilation to acetylcholine was significantly reduced in old salt arteries (60 ± 3%) when compared with old control arteries (81 ± 4%). Glibenclamide reduced acetylcholine-induced dilation in young salt arteries but had no effect on old salt arteries. Dilation to cromakalim, a potassium-ATP channel opener, was reduced in old salt arteries when compared with old control arteries. [Conclusion] These findings demonstrate that aging impairs endothelium-dependent relaxation in mesenteric arteries. Furthermore, a high salt diet alters the function of potassium-ATP-dependent channel signaling in old isolated mesenteric arteries and affects the mediation of relaxation stimuli.
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Affiliation(s)
- Melissa A Whidden
- Department of Kinesiology, West Chester University, West Chester USA
| | - Bilgen Basgut
- Department of Pharmacology, Near East University, Northern Cyprus Turkey
| | - Nataliya Kirichenko
- Geriatric Research, Education and Clinical Center, Department of Veterans Affairs Medical Center GainesvilleUSA; Department of Pharmacology and Therapeutics, University of Florida, GainesvilleUSA
| | - Benedek Erdos
- Department of Pharmacology, University of Vermont, Burlington USA
| | - Nihal Tümer
- Geriatric Research, Education and Clinical Center, Department of Veterans Affairs Medical Center GainesvilleUSA; Department of Pharmacology and Therapeutics, University of Florida, GainesvilleUSA
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32
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Pérez LM, Pareja-Galeano H, Sanchis-Gomar F, Emanuele E, Lucia A, Gálvez BG. 'Adipaging': ageing and obesity share biological hallmarks related to a dysfunctional adipose tissue. J Physiol 2016; 594:3187-207. [PMID: 26926488 DOI: 10.1113/jp271691] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 01/21/2016] [Indexed: 12/15/2022] Open
Abstract
The increasing ageing of our societies is accompanied by a pandemic of obesity and related cardiometabolic disorders. Progressive dysfunction of the white adipose tissue is increasingly recognized as an important hallmark of the ageing process, which in turn contributes to metabolic alterations, multi-organ damage and a systemic pro-inflammatory state ('inflammageing'). On the other hand, obesity, the paradigm of adipose tissue dysfunction, shares numerous biological similarities with the normal ageing process such as chronic inflammation and multi-system alterations. Accordingly, understanding the interplay between accelerated ageing related to obesity and adipose tissue dysfunction is critical to gain insight into the ageing process in general as well as into the pathophysiology of obesity and other related conditions. Here we postulate the concept of 'adipaging' to illustrate the common links between ageing and obesity and the fact that, to a great extent, obese adults are prematurely aged individuals.
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Affiliation(s)
- Laura M Pérez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Helios Pareja-Galeano
- Universidad Europea de Madrid, Spain.,Research Institute Hospital 12 de Octubre ('i+12'), Madrid, Spain
| | | | | | - Alejandro Lucia
- Universidad Europea de Madrid, Spain.,Research Institute Hospital 12 de Octubre ('i+12'), Madrid, Spain
| | - Beatriz G Gálvez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Universidad Europea de Madrid, Spain
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33
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Lee JH, Lee SH, Choi SH, Asahara T, Kwon SM. The sulfated polysaccharide fucoidan rescues senescence of endothelial colony-forming cells for ischemic repair. Stem Cells 2016; 33:1939-51. [PMID: 25693733 DOI: 10.1002/stem.1973] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 01/15/2015] [Indexed: 01/08/2023]
Abstract
The efficacy of cell therapy using endothelial colony-forming cells (ECFCs) in the treatment of ischemia is limited by the replicative senescence of isolated ECFCs in vitro. Such senescence must therefore be overcome in order for such cell therapies to be clinically applicable. This study aimed to investigate the potential of sulfated polysaccharide fucoidan to rescue ECFCs from cellular senescence and to improve in vivo vascular repair by ECFCs. Fucoidan-preconditioning of senescent ECFCs was shown by flow cytometry to restore the expression of functional ECFC surface markers (CD34, c-Kit, VEGFR2, and CXCR4) and stimulate the in vitro tube formation capacity of ECFCs. Fucoidan also promoted the expression of cell cycle-associated proteins (cyclin E, Cdk2, cyclin D1, and Cdk4) in senescent ECFCs, significantly reversed cellular senescence, and increased the proliferation of ECFCs via the FAK, Akt, and ERK signaling pathways. Fucoidan was found to enhance the survival, proliferation, incorporation, and endothelial differentiation of senescent ECFCs transplanted in ischemic tissues in a murine hind limb ischemia model. Moreover, ECFC-induced functional recovery and limb salvage were markedly improved by fucoidan pretreatment of ECFCs. To our knowledge, the findings of our study are the first to demonstrate that fucoidan enhances the neovasculogenic potential of ECFCs by rescuing them from replicative cellular senescence. Pretreatment of ECFCs with fucoidan may thus provide a novel strategy for the application of senescent stem cells to therapeutic neovascularization.
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Affiliation(s)
- Jun Hee Lee
- Laboratory for Vascular Medicine and Stem Cell Biology, Department of Physiology, Medical Research Institute, School of Medicine, Pusan National University, Yangsan, Korea
| | - Sang Hun Lee
- Soonchunhyang Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Yongsan-gu, Seoul, Korea.,Department of Biochemistry, School of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Sung Hyun Choi
- Laboratory for Vascular Medicine and Stem Cell Biology, Department of Physiology, Medical Research Institute, School of Medicine, Pusan National University, Yangsan, Korea
| | - Takayuki Asahara
- Department Regenerative Medicine Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Sang-Mo Kwon
- Laboratory for Vascular Medicine and Stem Cell Biology, Department of Physiology, Medical Research Institute, School of Medicine, Pusan National University, Yangsan, Korea
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34
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Barton M, Husmann M, Meyer MR. Accelerated Vascular Aging as a Paradigm for Hypertensive Vascular Disease: Prevention and Therapy. Can J Cardiol 2016; 32:680-686.e4. [PMID: 27118295 DOI: 10.1016/j.cjca.2016.02.062] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/22/2016] [Accepted: 02/23/2016] [Indexed: 12/21/2022] Open
Abstract
Aging is considered the most important nonmodifiable risk factor for cardiovascular disease and death after age 28 years. Because of demographic changes the world population is expected to increase to 9 billion by the year 2050 and up to 12 billion by 2100, with several-fold increases among those 65 years of age and older. Healthy aging and prevention of aging-related diseases and associated health costs have become part of political agendas of governments around the world. Atherosclerotic vascular burden increases with age; accordingly, patients with progeria (premature aging) syndromes die from myocardial infarctions or stroke as teenagers or young adults. The incidence and prevalence of arterial hypertension also increases with age. Arterial hypertension-like diabetes and chronic renal failure-shares numerous pathologies and underlying mechanisms with the vascular aging process. In this article, we review how arterial hypertension resembles premature vascular aging, including the mechanisms by which arterial hypertension (as well as other risk factors such as diabetes mellitus, dyslipidemia, or chronic renal failure) accelerates the vascular aging process. We will also address the importance of cardiovascular risk factor control-including antihypertensive therapy-as a powerful intervention to interfere with premature vascular aging to reduce the age-associated prevalence of diseases such as myocardial infarction, heart failure, hypertensive nephropathy, and vascular dementia due to cerebrovascular disease. Finally, we will discuss the implementation of endothelial therapy, which aims at active patient participation to improve primary and secondary prevention of cardiovascular disease.
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Affiliation(s)
- Matthias Barton
- Molecular Internal Medicine, University of Zürich, Zürich, Switzerland.
| | - Marc Husmann
- Division of Angiology, University Hospital Zürich, Zürich, Switzerland
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35
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Wang J, Uryga AK, Reinhold J, Figg N, Baker L, Finigan A, Gray K, Kumar S, Clarke M, Bennett M. Vascular Smooth Muscle Cell Senescence Promotes Atherosclerosis and Features of Plaque Vulnerability. Circulation 2015; 132:1909-19. [DOI: 10.1161/circulationaha.115.016457] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 09/17/2015] [Indexed: 12/28/2022]
Abstract
Background—
Although vascular smooth muscle cell (VSMC) proliferation is implicated in atherogenesis, VSMCs in advanced plaques and cultured from plaques show evidence of VSMC senescence and DNA damage. In particular, plaque VSMCs show shortening of telomeres, which can directly induce senescence. Senescence can have multiple effects on plaque development and morphology; however, the consequences of VSMC senescence or the mechanisms underlying VSMC senescence in atherosclerosis are mostly unknown.
Methods and Results—
We examined the expression of proteins that protect telomeres in VSMCs derived from human plaques and normal vessels. Plaque VSMCs showed reduced expression and telomere binding of telomeric repeat-binding factor-2 (TRF2), associated with increased DNA damage. TRF2 expression was regulated by p53-dependent degradation of the TRF2 protein. To examine the functional consequences of loss of TRF2, we expressed TRF2 or a TRF2 functional mutant (T188A) as either gain- or loss-of-function studies in vitro and in apolipoprotein E
–/–
mice. TRF2 overexpression bypassed senescence, reduced DNA damage, and accelerated DNA repair, whereas TRF2
188A
showed opposite effects. Transgenic mice expressing VSMC-specific TRF2
T188A
showed increased atherosclerosis and necrotic core formation in vivo, whereas VSMC-specific TRF2 increased the relative fibrous cap and decreased necrotic core areas. TRF2 protected against atherosclerosis independent of secretion of senescence-associated cytokines.
Conclusions—
We conclude that plaque VSMC senescence in atherosclerosis is associated with loss of TRF2. VSMC senes cence promotes both atherosclerosis and features of plaque vulnerability, identifying prevention of senescence as a potential target for intervention.
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Affiliation(s)
- Julie Wang
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Anna K. Uryga
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Johannes Reinhold
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Nichola Figg
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Lauren Baker
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Alison Finigan
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Kelly Gray
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Sheetal Kumar
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Murray Clarke
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Martin Bennett
- From Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
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36
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Brassard JA, Fekete N, Garnier A, Hoesli CA. Hutchinson-Gilford progeria syndrome as a model for vascular aging. Biogerontology 2015; 17:129-45. [PMID: 26330290 DOI: 10.1007/s10522-015-9602-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 08/24/2015] [Indexed: 01/03/2023]
Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is a premature aging disorder caused by a de novo genetic mutation that leads to the accumulation of a splicing isoform of lamin A termed progerin. Progerin expression alters the organization of the nuclear lamina and chromatin. The life expectancy of HGPS patients is severely reduced due to critical cardiovascular defects. Progerin also accumulates in an age-dependent manner in the vascular cells of adults that do not carry genetic mutations associated with HGPS. The molecular mechanisms that lead to vascular dysfunction in HGPS may therefore also play a role in vascular aging. The vascular phenotypic and molecular changes observed in HGPS are strikingly similar to those seen with age, including increased senescence, altered mechanotransduction and stem cell exhaustion. This article discusses the similarities and differences between age-dependent and HGPS-related vascular aging to highlight the relevance of HGPS as a model for vascular aging. Induced pluripotent stem cells derived from HGPS patients are suggested as an attractive model to study vascular aging in order to develop novel approaches to treat cardiovascular disease.
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Affiliation(s)
- Jonathan A Brassard
- Department of Chemical Engineering, McGill University, Wong Building, 3610 University Street, Montréal, QC, H3A 0C5, Canada.,Department of Chemical Engineering, Université Laval, 1065 Avenue de la Médecine, Québec, QC, G1V 0A6, Canada
| | - Natalie Fekete
- Department of Chemical Engineering, McGill University, Wong Building, 3610 University Street, Montréal, QC, H3A 0C5, Canada
| | - Alain Garnier
- Department of Chemical Engineering, Université Laval, 1065 Avenue de la Médecine, Québec, QC, G1V 0A6, Canada
| | - Corinne A Hoesli
- Department of Chemical Engineering, McGill University, Wong Building, 3610 University Street, Montréal, QC, H3A 0C5, Canada.
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37
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Serum from calorie-restricted animals delays senescence and extends the lifespan of normal human fibroblasts in vitro. Aging (Albany NY) 2015; 7:152-66. [PMID: 25855056 PMCID: PMC4394727 DOI: 10.18632/aging.100719] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The cumulative effects of cellular senescence and cell loss over time in various tissues and organs are considered major contributing factors to the ageing process. In various organisms, caloric restriction (CR) slows ageing and increases lifespan, at least in part, by activating nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylases of the sirtuin family. Here, we use an in vitro model of CR to study the effects of this dietary regime on replicative senescence, cellular lifespan and modulation of the SIRT1 signaling pathway in normal human diploid fibroblasts. We found that serum from calorie-restricted animals was able to delay senescence and significantly increase replicative lifespan in these cells, when compared to serum from ad libitum fed animals. These effects correlated with CR-mediated increases in SIRT1 and decreases in p53 expression levels. In addition, we show that manipulation of SIRT1 levels by either over-expression or siRNA-mediated knockdown resulted in delayed and accelerated cellular senescence, respectively. Our results demonstrate that CR can delay senescence and increase replicative lifespan of normal human diploid fibroblasts in vitro and suggest that SIRT1 plays an important role in these processes. (185 words).
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Yoshida Y, Shimizu I, Minamino T. The pathological role of adipose tissue aging in the progression of systemic insulin resistance. Inflamm Regen 2015. [DOI: 10.2492/inflammregen.35.178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama, Japan
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Abstract
Accumulation of DNA damage has been linked to the process of aging and to the onset of age-related diseases including diabetes. Studies on progeroid syndromes have suggested that the DNA damage response is involved in regulation of metabolic homeostasis. DNA damage could impair metabolic organ functions by causing cell death or senescence. DNA damage also could induce tissue inflammation that disturbs the homeostasis of systemic metabolism. Various roles of molecules related to DNA repair in cellular metabolism are being uncovered, and such molecules could also have an impact on systemic metabolism. This review explores mechanisms by which the DNA damage response could contribute to metabolic dysfunction.
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Affiliation(s)
- Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Department of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Department of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan.
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Balistreri CR, Pisano C, Martorana A, Triolo OF, Lio D, Candore G, Ruvolo G. Are the leukocyte telomere length attrition and telomerase activity alteration potential predictor biomarkers for sporadic TAA in aged individuals? AGE (DORDRECHT, NETHERLANDS) 2014; 36:9700. [PMID: 25129574 PMCID: PMC4453932 DOI: 10.1007/s11357-014-9700-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 07/30/2014] [Indexed: 06/03/2023]
Abstract
A large variability in occurrence, complications, and age/gender manifestations characterizes individual susceptibility of sporadic thoracic aortic aneurysms (TAA), even in subjects with the same risk factor profiles. The reasons are poorly understood. On the other hand, TAA pathophysiology mechanisms remain unclear than those involved in abdominal aorta aneurysms. However, recent evidence is suggesting a crucial role of biological ageing in inter-individual risk variation of cardiovascular diseases, including sporadic TAA. Biological age rather than chronological age is a better predictor of vascular risk. Relevant assumptions support this concept. In confirming this evidence and our preliminary data, the mean of blood leukocyte telomere length, through use of terminal restriction fragment assay and in blood samples from sporadic TAA patients and controls, was examined. Telomerase activity was also analyzed in two groups. In addition, we verified the weight of genetic inflammatory variants and the major TAA risk factors in telomere/telomerase impairment. Aorta histopathological abnormalities and systemic inflammatory mediators were ultimately correlated with telomere/telomerase impairment. Data obtained demonstrated shorter telomeres and a reduced telomerase activity in TAA patients significantly associated with a genetic inflammatory risk profile, age, gender, smoking, hypertension, a histopathological phenotype, and higher levels of systemic inflammatory mediators than controls. In conclusion, telomere and telomerase activity's detection might be used as predictor biomarkers of sporadic TAA. Their impairment also suggests a strong role of vascular ageing in sporadic TAA, evocated by both environmental and genetic inflammatory factors.
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Affiliation(s)
- Carmela R Balistreri
- Department of Pathobiology and Medical and Forensic Biotechnologies, University of Palermo, Corso Tukory 211, 90134, Palermo, Italy,
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Ito TK, Yokoyama M, Yoshida Y, Nojima A, Kassai H, Oishi K, Okada S, Kinoshita D, Kobayashi Y, Fruttiger M, Aiba A, Minamino T. A crucial role for CDC42 in senescence-associated inflammation and atherosclerosis. PLoS One 2014; 9:e102186. [PMID: 25057989 PMCID: PMC4109913 DOI: 10.1371/journal.pone.0102186] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 06/16/2014] [Indexed: 12/19/2022] Open
Abstract
Risk factors for atherosclerosis accelerate the senescence of vascular endothelial cells and promote atherogenesis by inducing vascular inflammation. A hallmark of endothelial senescence is the persistent up-regulation of pro-inflammatory genes. We identified CDC42 signaling as a mediator of chronic inflammation associated with endothelial senescence. Inhibition of CDC42 or NF-κB signaling attenuated the sustained up-regulation of pro-inflammatory genes in senescent human endothelial cells. Endothelium-specific activation of the p53/p21 pathway, a key mediator of senescence, also resulted in up-regulation of pro-inflammatory molecules in mice, which was reversed by Cdc42 deletion in endothelial cells. Likewise, endothelial-specific deletion of Cdc42 significantly attenuated chronic inflammation and plaque formation in atherosclerotic mice. While inhibition of NF-κB suppressed the pro-inflammatory responses in acute inflammation, the influence of Cdc42 deletion was less marked. Knockdown of cdc-42 significantly down-regulated pro-inflammatory gene expression and restored the shortened lifespan to normal in mutant worms with enhanced inflammation. These findings indicate that the CDC42 pathway is critically involved in senescence-associated inflammation and could be a therapeutic target for chronic inflammation in patients with age-related diseases without compromising host defenses.
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Affiliation(s)
- Takashi K. Ito
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Masataka Yokoyama
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Aika Nojima
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hidetoshi Kassai
- Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kengo Oishi
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Sho Okada
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Daisuke Kinoshita
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Marcus Fruttiger
- Institute of Ophthalmology, University College London, London, United Kingdom
| | - Atsu Aiba
- Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- PRESTO, Japan Science and Technology Agency, Saitama, Japan
- * E-mail:
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Yokoyama M, Okada S, Nakagomi A, Moriya J, Shimizu I, Nojima A, Yoshida Y, Ichimiya H, Kamimura N, Kobayashi Y, Ohta S, Fruttiger M, Lozano G, Minamino T. Inhibition of Endothelial p53 Improves Metabolic Abnormalities Related to Dietary Obesity. Cell Rep 2014; 7:1691-1703. [DOI: 10.1016/j.celrep.2014.04.046] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 01/09/2014] [Accepted: 04/21/2014] [Indexed: 11/27/2022] Open
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Hartwig F, Bertoldi D, Larangeira M, Wagner MS. Up-regulating telomerase and tumor suppressors: focusing on anti-aging interventions at the population level. Aging Dis 2014; 5:17-26. [PMID: 24490113 DOI: 10.14336/ad.2014.050017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 10/06/2013] [Accepted: 10/07/2013] [Indexed: 12/15/2022] Open
Abstract
Most human populations are undergoing a demographic transition regarding their age structure. This transition is reflected in chronic non-communicable diseases featuring among the main contributors to burden of disease. Considering that the aging process is a major risk factor for such conditions, understanding the mechanisms underlying aging and age-related diseases is critical to develop strategies to impact human health at population and/or individual-levels. Two different aspects of aging process (namely, telomere shortening and DNA damage accumulation) were shown to interact in positively impacting mice median survival. However, strategies aimed at translating such knowledge into actual human health benefits have not yet been discussed. In this manuscript, we present potential exposures that are suited for population-level interventions, and contextualize the roles of population (based on behavioral exposures) and individual-level (based on small-molecule administration) anti-aging interventions in different levels of disease prevention. We suggest that exposures such as moderate wine consumption, reducing calorie intake and active lifestyle are potentially useful for primordial and primary prevention, while small-molecules that activate telomerase and/or tumor suppression responses are more suited for secondary and tertiary prevention (although important for primary prevention in specific population subgroups). We also indicate the need of studying the impacts, on aging and age-related diseases, of different combinations of these exposures in well-conducted randomized controlled trials, and propose Mendelian randomization as a valuable alternative to gather information in human populations regarding the effects of potential anti-aging interventions.
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Affiliation(s)
| | - Daniel Bertoldi
- Biotechnology Baccalaureate Course, Federal University of Pelotas, Brazil
| | - Martin Larangeira
- Biotechnology Baccalaureate Course, Federal University of Pelotas, Brazil
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Blue EK, DiGiuseppe R, Derr-Yellin E, Acosta JC, Pay SL, Hanenberg H, Schellinger MM, Quinney SK, Mund JA, Case J, Haneline LS. Gestational diabetes induces alterations in the function of neonatal endothelial colony-forming cells. Pediatr Res 2014; 75:266-72. [PMID: 24232636 PMCID: PMC3944713 DOI: 10.1038/pr.2013.224] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 07/30/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND Children born to mothers with gestational diabetes mellitus (GDM) experience increased risk of developing hypertension, type 2 diabetes mellitus, and obesity. Disrupted function of endothelial colony-forming cells (ECFCs) may contribute to this enhanced risk. The goal of this study was to determine whether cord blood ECFCs from GDM pregnancies exhibit altered functionality. METHODS ECFCs isolated from the cord blood of control and GDM pregnancies were assessed for proliferation, senescence, and Matrigel network formation. The requirement for p38MAPK in hyperglycemia-induced senescence was determined using inhibition and overexpression studies. RESULTS GDM-exposed ECFCs were more proliferative than control ECFCs. However, GDM-exposed ECFCs exhibited decreased network-forming ability in Matrigel. Aging of ECFCs by serial passaging led to increased senescence and reduced proliferation of GDM-exposed ECFCs. ECFCs from GDM pregnancies were resistant to hyperglycemia-induced senescence compared with those from controls. In response to hyperglycemia, control ECFCs activated p38MAPK, which was required for hyperglycemia-induced senescence. In contrast, GDM-exposed ECFCs showed no change in p38MAPK activation under equivalent conditions. CONCLUSION Intrauterine exposure of ECFCs to GDM induces unique phenotypic alterations. The resistance of GDM-exposed ECFCs to hyperglycemia-induced senescence and decreased p38MAPK activation suggest that these progenitor cells have undergone changes that induce tolerance to a hyperglycemic environment.
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Affiliation(s)
- Emily K. Blue
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN,Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN
| | - Robert DiGiuseppe
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN
| | - Ethel Derr-Yellin
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN,Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN
| | - Juan Carlos Acosta
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN
| | - S. Louise Pay
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN
| | - Helmut Hanenberg
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN,Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN,Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN
| | - Megan M. Schellinger
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN
| | - Sara K. Quinney
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN
| | - Julie A. Mund
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN,Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN,Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN
| | - Jamie Case
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN,Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN,Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN
| | - Laura S. Haneline
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN,Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN,Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN,Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, IN,Department of Cellular & Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN
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Abstract
Patients with some progeroid syndromes, such as Werner syndrome, exhibit atherosclerotic cardiovascular disease (CVD) at a young age as a manifestation of premature aging. Recent studies have revealed that most progeroid syndromes are caused by genetic defects in specific molecules involved in the DNA damage response, a cornerstone of genome stability. Ionizing radiation is one of the most potent genotoxic stimuli and causes various kinds of DNA damage. Further, there is increasing evidence that therapeutic radiation treatments can cause cardiovascular complications. Here, we describe the DNA damage and subsequent response, review recent advances in the understanding of the molecular basis of progeroid syndromes (especially those syndromes that involve CVD), review the pathological and epidemiological analysis of radiation-induced CVD, and discuss the possible role of DNA damage and the DNA damage response in the pathogenesis of atherosclerotic CVD.
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Affiliation(s)
- Takafumi Ishida
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University
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Vemparala K, Roy A, Bahl VK, Prabhakaran D, Nath N, Sinha S, Nandi P, Pandey RM, Reddy KS, Manhapra A, Lakshmy R. Early accelerated senescence of circulating endothelial progenitor cells in premature coronary artery disease patients in a developing country - a case control study. BMC Cardiovasc Disord 2013; 13:104. [PMID: 24245738 PMCID: PMC3871012 DOI: 10.1186/1471-2261-13-104] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 11/09/2013] [Indexed: 12/04/2022] Open
Abstract
Background The decreased number and senescence of circulating endothelial progenitor cells (EPCs) are considered markers of vascular senescence associated with aging, atherosclerosis, and coronary artery disease (CAD) in elderly. In this study, we explore the role of vascular senescence in premature CAD (PCAD) in a developing country by comparing the numerical status and senescence of circulating EPCs in PCAD patients to controls. Methods EPCs were measured by flow cytometry in 57 patients with angiographically documented CAD, and 57 controls without evidence of CAD, recruited from random patients ≤ 50 years of age at All India Institute of Medical Sciences. EPC senescence as determined by telomere length (EPC-TL) and telomerase activity (EPC-TA) was studied by real time polymerase chain reaction (q PCR) and PCR– ELISA respectively. Result The number of EPCs (0.18% Vs. 0.039% of total WBCs, p < 0.0001), and EPC-TL (3.83 Vs. 5.10 kb/genome, p = 0.009) were markedly lower in PCAD patients compared to controls. These differences persisted after adjustment for age, sex, BMI, smoking and medications. EPC-TA was reduced in PCAD patients, but was statistically significant only after adjustment for confounding factors (1.81 Vs. 2.20 IU/cell, unadjusted p = 0.057, adjusted p = 0.044). Conclusions We observed an association between increased vascular cell senescence with PCAD in a sample of young patients from India. This suggests that early accelerated vascular cell senescence may play an important mechanistic role in CAD epidemic in developing countries like India where PCAD burden is markedly higher compared to developed countries.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Ramakrishnan Lakshmy
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
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Regional variations and age-related changes in arginine metabolism in the rat brain stem and spinal cord. Neuroscience 2013; 252:98-108. [DOI: 10.1016/j.neuroscience.2013.08.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 07/26/2013] [Accepted: 08/01/2013] [Indexed: 01/08/2023]
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Olivieri F, Lazzarini R, Babini L, Prattichizzo F, Rippo MR, Tiano L, Di Nuzzo S, Graciotti L, Festa R, Brugè F, Orlando P, Silvestri S, Capri M, Palma L, Magnani M, Franceschi C, Littarru GP, Procopio AD. Anti-inflammatory effect of ubiquinol-10 on young and senescent endothelial cells via miR-146a modulation. Free Radic Biol Med 2013; 63:410-20. [PMID: 23727324 DOI: 10.1016/j.freeradbiomed.2013.05.033] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Revised: 04/12/2013] [Accepted: 05/22/2013] [Indexed: 01/31/2023]
Abstract
Clinical evidence demonstrates that ubiquinol-10, the reduced active form of coenzyme Q10 (CoQ10H₂), improves endothelial function through its antioxidant and probably its anti-inflammatory properties. We previously reported that a biomarker combination including miR-146a, its target protein IL-1 receptor-associated kinase (IRAK-1), and released interleukin (IL)-6, here collectively designated as MIRAKIL, indicates senescence-associated secretory phenotype (SASP) acquisition by primary human umbilical vein endothelial cells (HUVECs). We explore the ability of short- and long-term CoQ10H₂ supplementation to affect MIRAKIL in HUVECs, used as a model of vascular aging, during replicative senescence in the absence/presence of lipopolysaccharide (LPS), a proinflammatory stimulus. Senescent HUVECs had the same ability as young cells to internalize CoQ10 and exhibit an improved oxidative status. LPS-induced NF-κB activation diminished after CoQ10H₂ pretreatment in both young and senescent cells. However, short-term CoQ10H₂ supplementation attenuated LPS-induced MIRAKIL changes in young cells; in senescent cells CoQ10H₂ supplementation significantly attenuated LPS-induced miR-146a and IRAK-1 modulation but failed to curb IL-6 release. Similar results were obtained with long-term CoQ10H₂ incubation. These findings provide new insights into the molecular mechanisms by which CoQ10H₂ stems endothelial cell inflammatory responses and delays SASP acquisition. These phenomena may play a role in preventing the endothelial dysfunction associated with major age-related diseases.
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Affiliation(s)
- Fabiola Olivieri
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60020 Ancona, Italy.
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Shimizu I, Yoshida Y, Moriya J, Nojima A, Uemura A, Kobayashi Y, Minamino T. Semaphorin3E-induced inflammation contributes to insulin resistance in dietary obesity. Cell Metab 2013; 18:491-504. [PMID: 24093674 DOI: 10.1016/j.cmet.2013.09.001] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 07/10/2013] [Accepted: 08/13/2013] [Indexed: 01/02/2023]
Abstract
Semaphorins and their receptors (plexins) are axon-guiding molecules that regulate the development of the nervous system during embryogenesis. Here we describe a previously unknown role of class 3 semaphorin E (Sema3E) in adipose tissue inflammation and insulin resistance. Expression of Sema3E and its receptor plexinD1 was upregulated in the adipose tissue of a mouse model of dietary obesity. Inhibition of the Sema3E-plexinD1 axis markedly reduced adipose tissue inflammation and improved insulin resistance in this model. Conversely, overexpression of Sema3E in adipose tissue provoked inflammation and insulin resistance. Sema3E promoted infiltration of macrophages, and this effect was inhibited by disrupting plexinD1 expression in macrophages. Disruption of adipose tissue p53 expression led to downregulation of Sema3E expression and improved adipose tissue inflammation. These results indicate that Sema3E acts as a chemoattractant for macrophages, with p53-induced upregulation of Sema3E expression provoking adipose tissue inflammation and systemic insulin resistance in association with dietary obesity.
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Affiliation(s)
- Ippei Shimizu
- Department of Cardiovascular Science and Medicine, 1-8-1 Inohana, Chuo-ku, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
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Stochaj U, Kodiha M, Shum-Tim D, Colmegna I. Implications of multipotent mesenchymal stromal cell aging. Regen Med 2013; 8:211-22. [PMID: 23477400 DOI: 10.2217/rme.13.10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aging is defined as the progressive and generalized impairment of function, resulting in an increasing vulnerability to environmental challenges and a growing risk of disease and death. The decline in the regenerative capacity of resident stem cells across different tissues is a central mediator of aging. In this paper we review the evidence implicating multipotent mesenchymal stromal cells as being subject to and causes of tissue and organismal aging. We specifically discuss the nuclear changes that occur in the context of Hutchinson-Gilford progeria syndrome, a premature aging syndrome that preferentially affects tissues of mesenchymal origin.
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Affiliation(s)
- Ursula Stochaj
- Department of Physiology, McGill University, McIntyre Medical Sciences Building, Room 1115, 3655 Promenade Sir William Osler, Montréal, Québec H3G 1Y6, Canada
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