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Ping X, Li Q, Ding M, Wang X, Tang C, Yu Z, Yi Q, He Y, Zheng L. Effects of hypoxic compound exercise to promote HIF-1α expression on cardiac pumping function, sleep activity behavior, and exercise capacity in Drosophila. FASEB J 2024; 38:e23499. [PMID: 38430222 DOI: 10.1096/fj.202302269r] [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: 11/07/2023] [Revised: 01/12/2024] [Accepted: 02/06/2024] [Indexed: 03/03/2024]
Abstract
Alteration of HIF-1α expression levels under hypoxic conditions affects the sequence of its downstream target genes thereby producing different effects. In order to investigate whether the effect of hypoxic compound exercise (HE) on HIF-1α expression alters cardiac pumping function, myocardial structure, and exercise capacity, we developed a suitable model of hypoxic exercise using Drosophila, a model organism, and additionally investigated the effect of hypoxic compound exercise on nocturnal sleep and activity behavior. The results showed that hypoxic compound exercise at 6% oxygen concentration for five consecutive days, lasting 1 h per day, significantly improved the cardiac stress resistance of Drosophila. The hypoxic complex exercise promoted the whole-body HIF-1α expression in Drosophila, and improved the jumping ability, climbing ability, moving speed, and moving distance. The expression of HIF-1α in the heart was increased after hypoxic exercise, which made a closer arrangement of myofilaments, an increase in the diameter of cardiac tubules, and an increase in the pumping function of the heart. The hypoxic compound exercise improved the sleep quality of Drosophila by increasing its nocturnal sleep time, the number of deep sleeps, and decreasing its nocturnal awakenings and activities. Therefore, we conclude that hypoxic compound exercise promoted the expression of HIF-1α to enhance the exercise capacity and heart pumping function of Drosophila, and improved the quality of sleep.
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Affiliation(s)
- Xu Ping
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Qiufang Li
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Meng Ding
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Xiaoya Wang
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Chao Tang
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Zhengwen Yu
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Qin Yi
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Yupeng He
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Lan Zheng
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
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2
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Bruhn PJ, Jessen ML, Eiberg J, Ghulam Q. Hypoxia inducible factor 1-alpha in the pathogenesis of abdominal aortic aneurysms in vivo: A narrative review. JVS Vasc Sci 2023; 5:100189. [PMID: 38379781 PMCID: PMC10877407 DOI: 10.1016/j.jvssci.2023.100189] [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: 09/20/2023] [Accepted: 12/21/2023] [Indexed: 02/22/2024] Open
Abstract
Abdominal aortic aneurysms (AAAs) are relatively common, primarily among older men, and, in the case of rupture, are associated with high mortality. Although procedure-related morbidity and mortality have improved with the advent of endovascular repair, noninvasive treatment and improved assessment of AAA rupture risk should still be sought. Several cellular pathways seem contributory to the histopathologic changes that drive AAA growth and rupture. Hypoxia inducible factor 1-alpha (HIF-1α) is an oxygen-sensitive protein that accumulates in the cytoplasm under hypoxic conditions and regulates a wide array of downstream effectors to hypoxia. Examining the potential role of HIF-1α in the pathogenesis of AAAs is alluring, because local hypoxia is known to be present in the AAA vessel wall. A systematic scoping review was performed to review the current evidence regarding the role of HIF-1α in AAA disease in vivo. After screening, 17 studies were included in the analysis. Experimental animal studies and human studies show increased HIF-1α activity in AAA tissue compared with healthy aorta and a correlation of HIF-1α activity with key histopathologic features of AAA disease. In vivo HIF-1α inhibition in animals protects against AAA development and growth. One study reveals a positive correlation between HIF-1α-activating genetic polymorphisms and the risk of AAA disease in humans. The main findings suggest a causal role of HIF-1α in the pathogenesis of AAAs in vivo. Further research into the HIF-1α pathway in AAA disease might reveal clinically applicable pharmacologic targets or biomarkers relevant in the treatment and monitoring of AAA disease.
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Affiliation(s)
| | | | - Jonas Eiberg
- Department of Vascular Surgery, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Copenhagen Academy of Medical Education and Simulation, University of Copenhagen, Copenhagen, Denmark
| | - Qasam Ghulam
- Department of Vascular Surgery, Rigshospitalet, Copenhagen, Denmark
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3
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Chellini F, Tani A, Parigi M, Palmieri F, Garella R, Zecchi-Orlandini S, Squecco R, Sassoli C. HIF-1α/MMP-9 Axis Is Required in the Early Phases of Skeletal Myoblast Differentiation under Normoxia Condition In Vitro. Cells 2023; 12:2851. [PMID: 38132171 PMCID: PMC10742321 DOI: 10.3390/cells12242851] [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: 11/06/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023] Open
Abstract
Hypoxia-inducible factor (HIF)-1α represents an oxygen-sensitive subunit of HIF transcriptional factor, which is usually degraded in normoxia and stabilized in hypoxia to regulate several target gene expressions. Nevertheless, in the skeletal muscle satellite stem cells (SCs), an oxygen level-independent regulation of HIF-1α has been observed. Although HIF-1α has been highlighted as a SC function regulator, its spatio-temporal expression and role during myogenic progression remain controversial. Herein, using biomolecular, biochemical, morphological and electrophysiological analyses, we analyzed HIF-1α expression, localization and role in differentiating murine C2C12 myoblasts and SCs under normoxia. In addition, we evaluated the role of matrix metalloproteinase (MMP)-9 as an HIF-1α effector, considering that MMP-9 is involved in myogenesis and is an HIF-1α target in different cell types. HIF-1α expression increased after 24/48 h of differentiating culture and tended to decline after 72 h/5 days. Committed and proliferating mononuclear myoblasts exhibited nuclear HIF-1α expression. Differently, the more differentiated elongated and parallel-aligned cells, which are likely ready to fuse with each other, show a mainly cytoplasmic localization of the factor. Multinucleated myotubes displayed both nuclear and cytoplasmic HIF-1α expression. The MMP-9 and MyoD (myogenic activation marker) expression synchronized with that of HIF-1α, increasing after 24 h of differentiation. By means of silencing HIF-1α and MMP-9 by short-interfering RNA and MMP-9 pharmacological inhibition, this study unraveled MMP-9's role as an HIF-1α downstream effector and the fact that the HIF-1α/MMP-9 axis is essential in morpho-functional cell myogenic commitment.
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Affiliation(s)
- Flaminia Chellini
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy; (F.C.); (A.T.); (M.P.); (S.Z.-O.)
| | - Alessia Tani
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy; (F.C.); (A.T.); (M.P.); (S.Z.-O.)
| | - Martina Parigi
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy; (F.C.); (A.T.); (M.P.); (S.Z.-O.)
| | - Francesco Palmieri
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy; (F.P.); (R.G.)
| | - Rachele Garella
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy; (F.P.); (R.G.)
| | - Sandra Zecchi-Orlandini
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy; (F.C.); (A.T.); (M.P.); (S.Z.-O.)
| | - Roberta Squecco
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy; (F.P.); (R.G.)
| | - Chiara Sassoli
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy; (F.C.); (A.T.); (M.P.); (S.Z.-O.)
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Zhu J, Wang Y, Rivett A, Li H, Wu L, Wang R, Yang G. Deficiency of cystathionine gamma-lyase promotes aortic elastolysis and medial degeneration in aged mice. J Mol Cell Cardiol 2022; 171:30-44. [PMID: 35843061 DOI: 10.1016/j.yjmcc.2022.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 11/28/2022]
Abstract
Enzymatic degradation of elastin by matrix metalloproteinases (MMPs) leads to the permanent dilation of aortic wall and constitutes the most prominent characters of aortic aneurysm and aging-related medial degeneration. Hydrogen sulfide (H2S) as a gasotransmitter exhibits a wide variety of cardio-protective functions through its anti-inflammatory and anti-oxidative actions. Cystathionine gamma-lyase (CSE) is a main H2S-generating enzyme in cardiovascular system. The regulatory roles of CSE/H2S system on elastin homeostasis and blood vessel degeneration have not yet been explored. Here we found that aged CSE knockout mice had severe aortic dilation and elastic degradation in abdominal aorta and were more sensitive to angiotensin II-induced aortic elastolysis and medial degeneration. Administration of NaHS would protect the mice from angiotensin II-induced inflammation, gelatinolytic activity, elastin fragmentation, and aortic dilation. In addition, human aortic aneurysm samples had higher inflammatory infiltration and lower expression of CSE. In cultured smooth muscle cells (SMCs), TNFα-induced MMP2/9 hyperactivity and elastolysis could be attenuated by exogenously applied NaHS or CSE overexpression while further deteriorated by complete knockout of CSE. It was further found that H2S inhibited MMP2 transcription by posttranslational modification of Sp1 via S-sulfhydration. H2S also directly suppressed MMP hyperactivity by S-sulfhydrating the cysteine switch motif. Taken together, this study revealed the involvement of CSE/H2S system in the pathogenesis of aortic elastolysis and medial degeneration by maintaining the inactive form of MMPs, suggesting that CSE/H2S system can be a target for the prevention of age-related medial degeneration and treatment of aortic aneurysm.
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Affiliation(s)
- Jiechun Zhu
- School of Natural Sciences, Laurentian University, Sudbury, Canada; Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Yuehong Wang
- School of Natural Sciences, Laurentian University, Sudbury, Canada; Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Alexis Rivett
- School of Natural Sciences, Laurentian University, Sudbury, Canada; Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Hongzhu Li
- School of Medicine, Xiamen University, Xiamen, China; Department of Pathophysiology, Harbin Medical University, Harbin, China
| | - Lingyun Wu
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada; Department of Biology, York University, Toronto, Canada
| | - Rui Wang
- Department of Biology, York University, Toronto, Canada
| | - Guangdong Yang
- School of Natural Sciences, Laurentian University, Sudbury, Canada; Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada.
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Yu B, Wang X, Song Y, Xie G, Jiao S, Shi L, Cao X, Han X, Qu A. The role of hypoxia-inducible factors in cardiovascular diseases. Pharmacol Ther 2022; 238:108186. [PMID: 35413308 DOI: 10.1016/j.pharmthera.2022.108186] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/29/2022] [Accepted: 04/06/2022] [Indexed: 12/12/2022]
Abstract
Cardiovascular diseases are the leading cause of death worldwide. During the development of cardiovascular diseases, hypoxia plays a crucial role. Hypoxia-inducible factors (HIFs) are the key transcription factors for adaptive hypoxic responses, which orchestrate the transcription of numerous genes involved in angiogenesis, erythropoiesis, glycolytic metabolism, inflammation, and so on. Recent studies have dissected the precise role of cell-specific HIFs in the pathogenesis of hypertension, atherosclerosis, aortic aneurysms, pulmonary arterial hypertension, and heart failure using tissue-specific HIF-knockout or -overexpressing animal models. More importantly, several compounds developed as HIF inhibitors or activators have been in clinical trials for the treatment of renal cancer or anemia; however, little is known on the therapeutic potential of these inhibitors for cardiovascular diseases. The purpose of this review is to summarize the recent advances on HIFs in the pathogenesis and pathophysiology of cardiovascular diseases and to provide evidence of potential clinical therapeutic targets.
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Affiliation(s)
- Baoqi Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China
| | - Xia Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China
| | - Yanting Song
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China; Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, PR China
| | - Guomin Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China
| | - Shiyu Jiao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China
| | - Li Shi
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China
| | - Xuejie Cao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China
| | - Xinyao Han
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China
| | - Aijuan Qu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, PR China; Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100069, PR China.
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Macrophage metabolic reprogramming aggravates aortic dissection through the HIF1α-ADAM17 pathway ✰. EBioMedicine 2019; 49:291-304. [PMID: 31640947 PMCID: PMC6945268 DOI: 10.1016/j.ebiom.2019.09.041] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/17/2022] Open
Abstract
Background Aortic dissection is a severe inflammatory vascular disease with high mortality and limited therapeutic options. The hallmarks of aortic dissection comprise aortic inflammatory cell infiltration and elastic fiber disruption, highlighting the involvement of macrophage. Here a role for macrophage hypoxia-inducible factor 1-alpha (HIF-1α) in aortic dissection was uncovered. Methods Immunochemistry, immunofluorescence, western blot and qPCR were performed to test the change of macrophage HIF-1α in two kinds of aortic dissection models and human tissues. Metabolomics and Seahorse extracellular flux analysis were used to detect the metabolic state of macrophages involved in the development of aortic dissection. Chromatin Immunoprecipitation (ChIP), enzyme-linked immunosorbent assay (ELISA) and cytometric bead array (CBA) were employed for mechanistic studies. Findings Macrophages involved underwent distinct metabolic reprogramming, especially fumarate accumulation, thus inducing HIF-1α activation in the development of aortic dissection in human and mouse models. Mechanistic studies revealed that macrophage HIF-1α activation triggered vascular inflammation, extracellular matrix degradation and elastic plate breakage through increased a disintegrin and metallopeptidase domain 17 (ADAM17), identified as a novel target gene of HIF-1α. A HIF-1α specific inhibitor acriflavine elicited protective effects on aortic dissection dependent on macrophage HIF-1α. Interpretation This study reveals that macrophage metabolic reprogramming activates HIF-1α and subsequently promotes aortic dissection progression, suggesting that macrophage HIF-1α inhibition might be a potential therapeutic target for treating aortic dissection.
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7
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Li DY, Busch A, Jin H, Chernogubova E, Pelisek J, Karlsson J, Sennblad B, Liu S, Lao S, Hofmann P, Bäcklund A, Eken SM, Roy J, Eriksson P, Dacken B, Ramanujam D, Dueck A, Engelhardt S, Boon RA, Eckstein HH, Spin JM, Tsao PS, Maegdefessel L. H19 Induces Abdominal Aortic Aneurysm Development and Progression. Circulation 2019; 138:1551-1568. [PMID: 29669788 DOI: 10.1161/circulationaha.117.032184] [Citation(s) in RCA: 157] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Long noncoding RNAs have emerged as critical molecular regulators in various biological processes and diseases. Here we sought to identify and functionally characterize long noncoding RNAs as potential mediators in abdominal aortic aneurysm development. METHODS We profiled RNA transcript expression in 2 murine abdominal aortic aneurysm models, Angiotensin II (ANGII) infusion in apolipoprotein E-deficient ( ApoE-/-) mice (n=8) and porcine pancreatic elastase instillation in C57BL/6 wild-type mice (n=12). The long noncoding RNA H19 was identified as 1 of the most highly upregulated transcripts in both mouse aneurysm models compared with sham-operated controls. This was confirmed by quantitative reverse transcription-polymerase chain reaction and in situ hybridization. RESULTS Experimental knock-down of H19, utilizing site-specific antisense oligonucleotides (LNA-GapmeRs) in vivo, significantly limited aneurysm growth in both models. Upregulated H19 correlated with smooth muscle cell (SMC) content and SMC apoptosis in progressing aneurysms. Importantly, a similar pattern could be observed in human abdominal aortic aneurysm tissue samples, and in a novel preclinical LDLR-/- (low-density lipoprotein receptor) Yucatan mini-pig aneurysm model. In vitro knock-down of H19 markedly decreased apoptotic rates of cultured human aortic SMCs, whereas overexpression of H19 had the opposite effect. Notably, H19-dependent apoptosis mechanisms in SMCs appeared to be independent of miR-675, which is embedded in the first exon of the H19 gene. A customized transcription factor array identified hypoxia-inducible factor 1α as the main downstream effector. Increased SMC apoptosis was associated with cytoplasmic interaction between H19 and hypoxia-inducible factor 1α and sequential p53 stabilization. Additionally, H19 induced transcription of hypoxia-inducible factor 1α via recruiting the transcription factor specificity protein 1 to the promoter region. CONCLUSIONS The long noncoding RNA H19 is a novel regulator of SMC survival in abdominal aortic aneurysm development and progression. Inhibition of H19 expression might serve as a novel molecular therapeutic target for aortic aneurysm disease.
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Affiliation(s)
- Daniel Y Li
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar (D.Y.L., A. Busch, J.P., S.L., H.-H.E., L.M.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Albert Busch
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar (D.Y.L., A. Busch, J.P., S.L., H.-H.E., L.M.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Hong Jin
- Department of Medicine (H.J., E.C., A. Bäcklund; S.M.E., P.E., L.M.), Karolinska Institutet, Stockholm, Sweden
| | - Ekaterina Chernogubova
- Department of Medicine (H.J., E.C., A. Bäcklund; S.M.E., P.E., L.M.), Karolinska Institutet, Stockholm, Sweden
| | - Jaroslav Pelisek
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar (D.Y.L., A. Busch, J.P., S.L., H.-H.E., L.M.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Joakim Karlsson
- Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Sweden (J.K.)
| | - Bengt Sennblad
- Department of Cell and Molecular Biology, Science for Life Laboratory, Uppsala University, Sweden (B.S.)
| | - Shengliang Liu
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar (D.Y.L., A. Busch, J.P., S.L., H.-H.E., L.M.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Shen Lao
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar (D.Y.L., A. Busch, J.P., S.L., H.-H.E., L.M.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Patrick Hofmann
- Institute of Cardiovascular Regeneration, University Hospital Frankfurt, and German Center for Cardiovascular Research (DZHK), partner site Rhein-Main, Frankfurt, Germany (P.H., R.A.B.)
| | - Alexandra Bäcklund
- Department of Medicine (H.J., E.C., A. Bäcklund; S.M.E., P.E., L.M.), Karolinska Institutet, Stockholm, Sweden
| | - Suzanne M Eken
- Department of Medicine (H.J., E.C., A. Bäcklund; S.M.E., P.E., L.M.), Karolinska Institutet, Stockholm, Sweden
| | - Joy Roy
- Department of Molecular Medicine and Surgery (J.R.), Karolinska Institutet, Stockholm, Sweden
| | - Per Eriksson
- Department of Medicine (H.J., E.C., A. Bäcklund; S.M.E., P.E., L.M.), Karolinska Institutet, Stockholm, Sweden
| | | | - Deepak Ramanujam
- Institute of Pharmacology and Toxicology (D.R., A.D., S.E.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Anne Dueck
- Institute of Pharmacology and Toxicology (D.R., A.D., S.E.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Stefan Engelhardt
- Institute of Pharmacology and Toxicology (D.R., A.D., S.E.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Reinier A Boon
- Institute of Cardiovascular Regeneration, University Hospital Frankfurt, and German Center for Cardiovascular Research (DZHK), partner site Rhein-Main, Frankfurt, Germany (P.H., R.A.B.)
| | - Hans-Henning Eckstein
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar (D.Y.L., A. Busch, J.P., S.L., H.-H.E., L.M.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany
| | - Joshua M Spin
- Division of Cardiovascular Medicine, Stanford University, CA (J.M.S., P.S.T.)
| | - Philip S Tsao
- Division of Cardiovascular Medicine, Stanford University, CA (J.M.S., P.S.T.)
| | - Lars Maegdefessel
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar (D.Y.L., A. Busch, J.P., S.L., H.-H.E., L.M.), Technical University Munich, and German Center for Cardiovascular Research (DZHK), partner site Munich, Germany.,Department of Medicine (H.J., E.C., A. Bäcklund; S.M.E., P.E., L.M.), Karolinska Institutet, Stockholm, Sweden
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8
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Kelly MJ, Igari K, Yamanouchi D. Osteoclast-Like Cells in Aneurysmal Disease Exhibit an Enhanced Proteolytic Phenotype. Int J Mol Sci 2019; 20:ijms20194689. [PMID: 31546645 PMCID: PMC6801460 DOI: 10.3390/ijms20194689] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/29/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is among the top 20 causes of death in the United States. Surgical repair is the gold standard for AAA treatment, therefore, there is a need for non-invasive therapeutic interventions. Aneurysms are more closely associated with the osteoclast-like catabolic degradation of the artery, rather than the osteoblast-like anabolic processes of arterial calcification. We have reported the presence of osteoclast-like cells (OLCs) in human and mouse aneurysmal tissues. The aim of this study was to examine OLCs from aneurysmal tissues as a source of degenerative proteases. Aneurysmal and control tissues from humans, and from the mouse CaPO4 and angiotensin II (AngII) disease models, were analyzed via flow cytometry and immunofluorescence for the expression of osteoclast markers. We found higher expression of the osteoclast markers tartrate-resistant acid phosphatase (TRAP), matrix metalloproteinase-9 (MMP-9), and cathepsin K, and the signaling molecule, hypoxia-inducible factor-1α (HIF-1α), in aneurysmal tissue compared to controls. Aneurysmal tissues also contained more OLCs than controls. Additionally, more OLCs from aneurysms express HIF-1α, and produce more MMP-9 and cathepsin K, than myeloid cells from the same tissue. These data indicate that OLCs are a significant source of proteases known to be involved in aortic degradation, in which the HIF-1α signaling pathway may play an important role. Our findings suggest that OLCs may be an attractive target for non-surgical suppression of aneurysm formation due to their expression of degradative proteases.
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Affiliation(s)
- Matthew J Kelly
- Division of Vascular Surgery, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA.
| | - Kimihiro Igari
- Division of Vascular Surgery, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA.
- Division of Vascular and Endovascular Surgery, Department of Surgery, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan.
| | - Dai Yamanouchi
- Division of Vascular Surgery, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA.
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Miyake T, Miyake T, Kurashiki T, Morishita R. Molecular Pharmacological Approaches for Treating Abdominal Aortic Aneurysm. Ann Vasc Dis 2019; 12:137-146. [PMID: 31275464 PMCID: PMC6600097 DOI: 10.3400/avd.ra.18-00076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 02/07/2019] [Indexed: 12/12/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is considered to be a potent life-threatening disorder in elderly individuals. Although many patients with a small AAA are detected during routine abdominal screening, there is no effective therapeutic option to prevent the progression or regression of AAA in the clinical setting. Recent advances in molecular biology have led to the identification of several important molecules, including microRNA and transcription factor, in the process of AAA formation. Regulation of these factors using nucleic acid drugs is expected to be a novel therapeutic option for AAA. Nucleic acid drugs can bind to target factors, mRNA, microRNA, and transcription factors in a sequence-specific fashion, resulting in a loss of function of the target molecule at the transcriptional or posttranscriptional level. Of note, inhibition of a transcription factor using a decoy strategy effectively suppresses experimental AAA formation, by regulating the expression of several genes associated with the disease progression. This review focuses on recent advances in molecular therapy of using nucleic acid drugs to treat AAA.
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Affiliation(s)
- Takashi Miyake
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tetsuo Miyake
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tomohiro Kurashiki
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Ryuichi Morishita
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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Appelman-Dijkstra NM, Papapoulos SE. Clinical advantages and disadvantages of anabolic bone therapies targeting the WNT pathway. Nat Rev Endocrinol 2018; 14:605-623. [PMID: 30181608 DOI: 10.1038/s41574-018-0087-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The WNT signalling pathway is a key regulator of bone metabolism, particularly bone formation, which has helped to define the role of osteocytes - the most abundant bone cells - as orchestrators of bone remodelling. Several molecules involved in the control of the WNT signalling pathway have been identified as potential targets for the development of bone-building therapeutics for patients with osteoporosis. Several of these molecules have been investigated in animal models, but only inhibitors of sclerostin (which is produced by osteocytes) have been investigated in phase III clinical studies. Here, we review the rationale for these developments and the specificity and potential off-target actions of WNT-based therapeutics. We also describe the available preclinical and clinical studies and discuss the benefits and risks of using sclerostin inhibitors for the management of patients with osteoporosis.
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Takahara Y, Tokunou T, Ichiki T. Suppression of Abdominal Aortic Aneurysm Formation in Mice by Teneligliptin, a Dipeptidyl Peptidase-4 Inhibitor. J Atheroscler Thromb 2018; 25:698-708. [PMID: 29321388 PMCID: PMC6099070 DOI: 10.5551/jat.42481] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: Dipeptidyl peptidase-4 (DPP-4) inhibitors lower blood glucose levels through inhibition of incretin degradation, which stimulates insulin secretion. Recent studies reported that DPP-4 inhibitors suppressed atherogenesis in apolipoprotein E-knockout (ApoEKO) mice. In this study, we investigated whether teneligliptin, a DPP-4 inhibitor, affects the development of abdominal aortic aneurysms (AAA) in ApoEKO mice. Methods: ApoEKO mice were fed a high-fat diet (HFD) and infused with angiotensin (Ang) II by osmotic mini pumps for 4 weeks to induce AAA with (DPP-4i group) or without (control group) teneligliptin administered orally from 1 week before HFD and Ang II infusion to the end of the experiment. Confluent rat vascular smooth muscle cells (VSMCs) were serum-starved for 48 hours, then incubated with or without teneligliptin for another 24 hours and stimulated with Ang II. Results: Treatment with teneligliptin significantly reduced the AAA formation rate (30.7% vs. 71.4% vs. control, P < 0.05), aortic dilatation (1.32 ± 0.09 mm vs. 1.76 ± 0.18 mm in the control, P < 0.05) and severity score (0.75 ± 0.28 vs. 1.91 ± 0.4 in the control, P < 0.05). Elastin degradation grade was also attenuated in DPP-4i group (2.83 ± 0.17 vs. 3.45 ± 0.16 in the control, P < 0.05). The number of macrophages infiltrating into the abdominal aorta was decreased in the DPP-4i group (51.8 ± 29.8/section vs. 219.5 ± 78.5/section in the control, P < 0.05). Teneligliptin attenuated Ang II-induced phosphorylation of extracellular signal-regulated kinase (ERK) and Akt, and mRNA expression of monocyte chemoattractant protein-1 in VSMCs. Conclusion: Treatment with teneligliptin suppressed AAA formation in ApoEKO mice with HFD and Ang II infusion. Suppression of macrophage infiltration by teneligliptin may be involved in the inhibition of AAA formation.
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Affiliation(s)
- Yusuke Takahara
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Kyushu University
| | - Tomotake Tokunou
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Kyushu University.,Center for Disruptive Cardiovascular Medicine, Department of Advanced Cardiovascular Regulation and Therapeutics, Kyushu University
| | - Toshihiro Ichiki
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Kyushu University.,Department of Cardiology, Harasanshin Hospital
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Wang W, Xu B, Xuan H, Ge Y, Wang Y, Wang L, Huang J, Fu W, Michie SA, Dalman RL. Hypoxia-inducible factor 1 in clinical and experimental aortic aneurysm disease. J Vasc Surg 2017; 68:1538-1550.e2. [PMID: 29242064 DOI: 10.1016/j.jvs.2017.09.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 09/17/2017] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Mural angiogenesis and macrophage accumulation are two pathologic hallmarks of abdominal aortic aneurysm (AAA) disease. The heterodimeric transcription factor hypoxia-inducible factor 1 (HIF-1) is an essential regulator of angiogenesis and macrophage function. In this study, we investigated HIF-1 expression and activity in clinical and experimental AAA disease. METHODS Human aortic samples were obtained from 24 AAA patients and six organ donors during open abdominal surgery. Experimental AAAs were created in 10-week-old male C57BL/6J mice by transient intra-aortic infusion of porcine pancreatic elastase (PPE). Expression of HIF-1α and its target gene messenger RNA (mRNA) levels were assessed in aneurysmal and control aortae. The HIF-1α inhibitors 2-methoxyestradiol and digoxin, the prolyl hydroxylase domain-containing protein (PHD) inhibitors cobalt chloride and JNJ-42041935, and the vehicle alone as control were administered daily to mice at varying time points beginning before or after PPE infusion. Influences on experimental AAA formation and progression were assessed by serial transabdominal ultrasound measurements of aortic diameter and histopathologic analysis at sacrifice. RESULTS The mRNA levels for HIF-1α, vascular endothelial growth factor A, glucose transporter 1, and matrix metalloproteinase 2 were significantly increased in both human and experimental aneurysm tissue. Tissue immunostaining detected more HIF-1α protein in both human and experimental aneurysmal aortae compared with respective control aortae. Treatment with either HIF-1α inhibitor, beginning before or after PPE infusion, prevented enlargement of experimental aneurysms. Both HIF-1α inhibition regimens attenuated medial elastin degradation, smooth muscle cell depletion, and mural angiogenesis and the accumulation of macrophages, T cells, and B cells. Whereas mRNA levels for PHD1 and PHD2 were elevated in experimental aneurysmal aortae, pharmacologic inhibition of PHDs had limited effect on experimental aneurysm progression. CONCLUSIONS Expression of HIF-1α and its target genes is increased in human and experimental AAAs. Treatment with HIF-1α inhibitors limits experimental AAA progression, with histologic evidence of attenuated mural leukocyte infiltration and angiogenesis. These findings underscore the potential significance of HIF-1α in aneurysm pathogenesis and as a target for pharmacologic suppression of AAA disease.
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Affiliation(s)
- Wei Wang
- Department of Surgery, Stanford University School of Medicine, Stanford, Calif; Department of Vascular Surgery, Central South University Xiangya Hospital, Changsha, Hunan, China
| | - Baohui Xu
- Department of Surgery, Stanford University School of Medicine, Stanford, Calif
| | - Haojun Xuan
- Department of Surgery, Stanford University School of Medicine, Stanford, Calif
| | - Yingbin Ge
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yan Wang
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, Calif
| | - Lixin Wang
- Department of Vascular Surgery, Fudan University Zhongshan Hospital, Shanghai, China
| | - Jianhua Huang
- Department of Vascular Surgery, Central South University Xiangya Hospital, Changsha, Hunan, China
| | - Weiguo Fu
- Department of Vascular Surgery, Fudan University Zhongshan Hospital, Shanghai, China
| | - Sara A Michie
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif
| | - Ronald L Dalman
- Department of Surgery, Stanford University School of Medicine, Stanford, Calif.
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HIF1α in aortic aneurysms and beyond. Clin Sci (Lond) 2017; 131:621-623. [PMID: 28302917 DOI: 10.1042/cs20160956] [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: 01/13/2017] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 11/17/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a permanent expansion of the vessel wall with a high prevalence in those 65 years of age and older. Aneurysms are prone to dissection and rupture that carry a mortality rate of over 85%. Currently, surgical repair is the only option to treat this disease. The need to intervene prior to these events has set off a flurry of basic studies in an effort to understand the cellular and molecular mechanisms that govern AAA formation, progression and rupture. In the present study, the role of myeloid cells in contributing to AAA development has been confirmed. More specifically, the transcription factor, hypoxia-inducible factor-1α (HIF1α), was demonstrated to be a necessary component for regulating the expression of extracellular matrix modifying enzymes and their endogenous inhibitors in these cells. This new discovery may lead to therapeutic targets to prohibit the degradation and weakening of the vessel wall with the hope of limiting AAA formation and/or growth.
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