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Signoretti C, Matsumura S, Fatehi S, D'Silva M, Mathew R, Cendali F, D'Alessandro A, Alam SMS, Garcia V, Miano JM, Gupte SA. G6pdN126D Variant Increases the Risk of Developing VEGFR (Vascular Endothelial Growth Factor Receptor) Blocker-Induced Pulmonary Vascular Disease. J Am Heart Assoc 2024:e035174. [PMID: 39291493 DOI: 10.1161/jaha.123.035174] [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: 03/24/2024] [Accepted: 08/09/2024] [Indexed: 09/19/2024]
Abstract
BACKGROUND G6PD (glucose-6-phosphate-dehydrogenase) is a key enzyme in the glycolytic pathway and has been implicated in the pathogenesis of cancer and pulmonary hypertension-associated vascular remodeling. Here, we investigated the role of an X-linked G6pd mutation (N126D polymorphism), which is known to increase the risk of cardiovascular disease in individuals from sub-Saharan Africa and many others with African ancestry, in the pathogenesis of pulmonary hypertension induced by a vascular endothelial cell growth factor receptor blocker used for treating cancer. METHODS AND RESULTS CRISPR-Cas9 genome editing was used to generate the G6pd variant (N126D; G6pdN126D) in rats. A single dose of the vascular endothelial cell growth factor receptor blocker sugen-5416 (SU; 20 mg/kg in DMSO), which is currently in a Phase 2/3 clinical trial for cancer treatment, was subcutaneously injected into G6pdN126D rats and their wild-type littermates. After 8 weeks of normoxic conditions, right ventricular pressure and hypertrophy, pulmonary artery remodeling, the metabolic profile, and cytokine expression were assessed. Right ventricular pressure and pulmonary arterial wall thickness were increased in G6PDN126D+SU/normoxic rats. Simultaneously, levels of oxidized glutathione, inositol triphosphate, and intracellular Ca2+ were increased in the lungs of G6PDN126D+SU/normoxic rats, whereas nitric oxide was decreased. Also increased in G6PDN126D+SU/normoxic rats were pulmonary levels of plasminogen activator inhibitor-1, thrombin-antithrombin complex, and expression of proinflammatory cytokines CCL3 (chemokine [C-C motif] ligand), CCL5, and CCL7. CONCLUSIONS Our results suggest G6PDN126D increases inositol triphosphate-Ca2+ signaling, inflammation, thrombosis, and hypertrophic pulmonary artery remodeling in SU-treated rats. This suggests an increased risk of vascular endothelial cell growth factor receptor blocker-induced pulmonary hypertension in those carrying this G6PD variant.
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Affiliation(s)
| | - Shun Matsumura
- Department of Pharmacology New York Medical College Valhalla NY USA
| | - Samuel Fatehi
- Department of Pharmacology New York Medical College Valhalla NY USA
| | - Melinee D'Silva
- Department of Pharmacology New York Medical College Valhalla NY USA
| | - Rajamma Mathew
- Department of Medicine, Division of Pediatric Cardiology, Physiology New York Medical College Valhalla NY USA
| | - Francesca Cendali
- Department of Biochemistry and Molecular Genetics University of Colorado Anschutz Medical Campus Aurora CO USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics University of Colorado Anschutz Medical Campus Aurora CO USA
| | - S M Shafiqul Alam
- Department of Pathology, Microbiology, and Immunology (PMI) New York Medical College Valhalla NY USA
| | - Victor Garcia
- Department of Pharmacology New York Medical College Valhalla NY USA
| | - Joseph M Miano
- Department of Medicine Vascular Biology Center, Medical College of Georgia at Augusta University Augusta GA USA
| | - Sachin A Gupte
- Department of Pharmacology New York Medical College Valhalla NY USA
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Ahmed ASI, Blood AB, Zhang L. MicroRNA-210 mediates hypoxia-induced pulmonary hypertension by targeting mitochondrial bioenergetics and mtROS flux. Acta Physiol (Oxf) 2024; 240:e14212. [PMID: 39073309 DOI: 10.1111/apha.14212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 07/11/2024] [Accepted: 07/15/2024] [Indexed: 07/30/2024]
Abstract
AIM Chronic hypoxia is a common cause of pulmonary hypertension (PH). We test the hypothesis that microRNA-210 (miR-210) mediates hypoxia-induced PH by targeting mitochondrial metabolism and increasing reactive oxygen species (mtROS) production in the lungs. METHODS Adult wildtype (WT) or miR-210 knockout (KO) mice were exposed to hypoxia (10.5% O2) or normoxia for 4 weeks. We measured miR-210 levels, right ventricular systolic pressure (RVSP), and histological changes in heart and lung tissues. Mitochondrial bioenergetics and mtROS production were assessed in isolated lung mitochondria. RESULTS Hypoxia increased right ventricular wall thickness and pulmonary vessel wall muscularization in WT, but not miR-210 KO mice. No sex differences were observed. In male mice, hypoxia increased miR-210 levels in the lung and RVSP, which were abrogated by miR-210 deficiency. Hypoxia upregulated mitochondrial oxygen consumption rate and mtROS flux, which were negated in miR-210 KO animals. In addition, chronic hypoxia increased macrophage accumulation in lungs of WT, but not miR-210 KO mice. Moreover, miR-210 overexpression in lungs of WT animals recapitulated the effects of hypoxia and increased mitochondrial oxygen consumption rate, mtROS flux, right ventricular wall thickness, pulmonary vessel wall muscularization and RVSP. MitoQ revoked the effects of miR-210 on lung mitochondrial bioenergetics, right ventricular and pulmonary vessel remodeling and RVSP. CONCLUSION Our findings with loss-of-function and gain-of-function approaches provide explicit evidence that miR-210 mediates hypoxia-induced PH by upregulating mitochondrial bioenergetics and mtROS production in a murine model, revealing new insights into the mechanisms and therapeutic targets for treatment of PH.
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Affiliation(s)
- Abu Shufian Ishtiaq Ahmed
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA
| | - Arlin B Blood
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA
| | - Lubo Zhang
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California, USA
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Wawrzyniak R, Grešner P, Lewicka E, Macioszek S, Furga A, Zieba B, J. Markuszewski M, Da̧browska-Kugacka A. Metabolomics Meets Clinics: A Multivariate Analysis of Plasma and Urine Metabolic Signatures in Pulmonary Arterial Hypertension. J Proteome Res 2024; 23:2795-2804. [PMID: 37827514 PMCID: PMC11302416 DOI: 10.1021/acs.jproteome.3c00255] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Indexed: 10/14/2023]
Abstract
Pulmonary arterial hypertension (PAH) is a severe, multifactorial, and frequently misdiagnosed disorder. The aim of this observational study was to compare the plasma and urine metabolomic profiles of PAH patients and healthy control subjects. Plasma and urine metabolomic profiles were analyzed using the GC-MS technique. Correlations between metabolite levels and clinical parameters among PAH patients, as well as the between-group differences, were evaluated. The linear discriminant analysis model, which allows for subject classification in terms of PAH with the highest possible precision, was developed and proposed. Plasma pyruvic acid, cholesterol, threonine, urine 3-(3-hydroxyphenyl)-3-hydroxypropanoic acid, butyric acid, 1,2-benzenediol, glucoheptonic acid, and 2-oxo-glutaric acid were found to build a relatively accurate classification model for PAH patients. The model reached an accuracy of 91% and significantly improved subject classification (OR = 119 [95% CI: 20.3-698.3], p < 0.0001). Five metabolites were detected in urine that provide easily available and noninvasive tests as compared to right heart catheterization. The selected panel of metabolites has potential for early recognition of patients with dyspnea and faster referral to a reference center.
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Affiliation(s)
- Renata Wawrzyniak
- Department
of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland
| | - Peter Grešner
- Laboratory
of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University
of Gdańsk, Dȩbinki
1, 80-211 Gdańsk, Poland
| | - Ewa Lewicka
- Department
of Cardiology and Electrotherapy, Medical
University of Gdansk, Debinki 7, 80-210 Gdańsk, Poland
| | - Szymon Macioszek
- Department
of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland
| | - Artur Furga
- Department
of General, Endocrine and Transplant Surgery, Invasive Medicine Center, Medical University of Gdańsk, 80-214 Gdańsk, Poland
| | - Bożena Zieba
- First
Department of Cardiology, Medical University
of Gdansk, Smoluchowskiego
17, 80-214 Gdańsk, Poland
| | - Michał J. Markuszewski
- Department
of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland
| | - Alicja Da̧browska-Kugacka
- Department
of Cardiology and Electrotherapy, Medical
University of Gdansk, Debinki 7, 80-210 Gdańsk, Poland
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Wang G, Liu S, Kong X, Jiao H, Tong F, Guo Z, Zhang M, Guan X, Ren N, Li W, Qi L, Wei Y. Lipocalin-2 induced LDHA expression promotes vascular remodelling in pulmonary hypertension. Cell Prolif 2024:e13717. [PMID: 39021353 DOI: 10.1111/cpr.13717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/30/2024] [Accepted: 07/05/2024] [Indexed: 07/20/2024] Open
Abstract
Aerobic glycolysis is involved in the pathogenesis of pulmonary hypertension (PH). The mechanisms by which glycolysis is increased and how it contributes to pulmonary vascular remodelling are not yet fully understood. In this study, we demonstrated that elevated lipocalin-2 (LCN2) in PH significantly enhances aerobic glycolysis in human pulmonary artery smooth muscle cells (PASMCs) by up-regulating LDHA expression. Knockout of Lcn2 or having heterozygous LDHA deficiency in mice significantly inhibits the progression of hypoxic PH. Our study reveals that LCN2 stimulates LDHA expression by activating Akt-HIF-1α signalling pathway. Inhibition of Akt or HIF-1α reduces LDHA expression and proliferation of PASMCs. Both Akt and HIF-1α play critical roles in the development of PH and are suppressed in the pulmonary vessels of hypoxic PH mice lacking LCN2. These findings shed light on the LCN2-Akt-HIF1α-LDHA axis in aerobic glycolysis in PH.
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Affiliation(s)
- Guoliang Wang
- Department of Tumor and Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shenghua Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaohui Kong
- Department of Tumor and Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hong Jiao
- Department of Tumor and Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Feng Tong
- Department of Cardiac Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Zhangke Guo
- Department of Cardiac Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Meng Zhang
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Xiaoxing Guan
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Na Ren
- Department of Clinical Laboratory Center, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Wanzhen Li
- Department of Lipidomics Experimental Platform, State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Lihua Qi
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yingjie Wei
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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5
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Guo S, Wang L, Cao K, Li Z, Song M, Huang S, Li Z, Wang C, Chen P, Wang Y, Dai X, Chen X, Fu X, Feng D, He J, Huo Y, Xu Y. Endothelial nucleotide-binding oligomerization domain-like receptor protein 3 inflammasome regulation in atherosclerosis. Cardiovasc Res 2024; 120:883-898. [PMID: 38626254 DOI: 10.1093/cvr/cvae071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 08/31/2023] [Accepted: 10/07/2023] [Indexed: 04/18/2024] Open
Abstract
AIMS The activation of nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome in endothelial cells (ECs) contributes to vascular inflammation in atherosclerosis. Considering the high glycolytic rate of ECs, we delineated whether and how glycolysis determines endothelial NLRP3 inflammasome activation in atherosclerosis. METHODS AND RESULTS Our results demonstrated a significant up-regulation of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3), a key regulator of glycolysis, in human and mouse atherosclerotic endothelium, which positively correlated with NLRP3 levels. Atherosclerotic stimuli up-regulated endothelial PFKFB3 expression via sterol regulatory element-binding protein 2 (SREBP2) transactivation. EC-selective haplodeficiency of Pfkfb3 in Apoe-/- mice resulted in reduced endothelial NLRP3 inflammasome activation and attenuation of atherogenesis. Mechanistic investigations revealed that PFKFB3-driven glycolysis increased the NADH content and induced oligomerization of C-terminal binding protein 1 (CtBP1), an NADH-sensitive transcriptional co-repressor. The monomer form, but not the oligomer form, of CtBP1 was found to associate with the transcriptional repressor Forkhead box P1 (FOXP1) and acted as a transrepressor of inflammasome components, including NLRP3, caspase-1, and interleukin-1β (IL-1β). Interfering with NADH-induced CtBP1 oligomerization restored its binding to FOXP1 and inhibited the glycolysis-dependent up-regulation of NLRP3, Caspase-1, and IL-1β. Additionally, EC-specific overexpression of NADH-insensitive CtBP1 alleviates atherosclerosis. CONCLUSION Our findings highlight the existence of a glycolysis-dependent NADH/CtBP/FOXP1-transrepression pathway that regulates endothelial NLRP3 inflammasome activation in atherogenesis. This pathway represents a potential target for selective PFKFB3 inhibitors or strategies aimed at disrupting CtBP1 oligomerization to modulate atherosclerosis.
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Affiliation(s)
- Shuai Guo
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Litao Wang
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Kaixiang Cao
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Ziling Li
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Mingchuan Song
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Shuqi Huang
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Zou Li
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Cailing Wang
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Peiling Chen
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Yong Wang
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xiaoyan Dai
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Xianglin Chen
- Department of Neurosurgery, The People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, Guangdong, China
| | - Xiaodong Fu
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Du Feng
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
| | - Jun He
- Department of Rehabilitation Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuqing Huo
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A1459 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Yiming Xu
- School of Basic Medical Sciences, State Key Lab of Respiratory Disease, Guangzhou Medical University, 195 Dongfeng W Rd, Yue Xiu Qu, Guang Zhou Shi, Guang Dong Sheng, China, 510180
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Ba H, Guo Y, Jiang Y, Li Y, Dai X, Liu Y, Li X. Unveiling the metabolic landscape of pulmonary hypertension: insights from metabolomics. Respir Res 2024; 25:221. [PMID: 38807129 PMCID: PMC11131231 DOI: 10.1186/s12931-024-02775-5] [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: 11/27/2023] [Accepted: 03/14/2024] [Indexed: 05/30/2024] Open
Abstract
Pulmonary hypertension (PH) is regarded as cardiovascular disease with an extremely poor prognosis, primarily due to irreversible vascular remodeling. Despite decades of research progress, the absence of definitive curative therapies remains a critical challenge, leading to high mortality rates. Recent studies have shown that serious metabolic disorders generally exist in PH animal models and patients of PH, which may be the cause or results of the disease. It is imperative for future research to identify critical biomarkers of metabolic dysfunction in PH pathophysiology and to uncover metabolic targets that could enhance diagnostic and therapeutic strategies. Metabolomics offers a powerful tool for the comprehensive qualitative and quantitative analysis of metabolites within specific organisms or cells. On the basis of the findings of the metabolomics research on PH, this review summarizes the latest research progress on metabolic pathways involved in processes such as amino acid metabolism, carbohydrate metabolism, lipid metabolism, and nucleotide metabolism in the context of PH.
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Affiliation(s)
- Huixue Ba
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Department of Pharmacy, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Yingfan Guo
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Yujie Jiang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Ying Li
- Department of Health Management, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xuejing Dai
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha, China
| | - Yuan Liu
- Department of Anesthesiology, The Second Xiangya Hospital of Central South University, Changsha, China.
| | - Xiaohui Li
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China.
- Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha, China.
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Zhang H, Li M, Hu CJ, Stenmark KR. Fibroblasts in Pulmonary Hypertension: Roles and Molecular Mechanisms. Cells 2024; 13:914. [PMID: 38891046 PMCID: PMC11171669 DOI: 10.3390/cells13110914] [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: 04/26/2024] [Revised: 05/17/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
Fibroblasts, among the most prevalent and widely distributed cell types in the human body, play a crucial role in defining tissue structure. They do this by depositing and remodeling extracellular matrixes and organizing functional tissue networks, which are essential for tissue homeostasis and various human diseases. Pulmonary hypertension (PH) is a devastating syndrome with high mortality, characterized by remodeling of the pulmonary vasculature and significant cellular and structural changes within the intima, media, and adventitia layers. Most research on PH has focused on alterations in the intima (endothelial cells) and media (smooth muscle cells). However, research over the past decade has provided strong evidence of the critical role played by pulmonary artery adventitial fibroblasts in PH. These fibroblasts exhibit the earliest, most dramatic, and most sustained proliferative, apoptosis-resistant, and inflammatory responses to vascular stress. This review examines the aberrant phenotypes of PH fibroblasts and their role in the pathogenesis of PH, discusses potential molecular signaling pathways underlying these activated phenotypes, and highlights areas of research that merit further study to identify promising targets for the prevention and treatment of PH.
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Affiliation(s)
- Hui Zhang
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Min Li
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Cheng-Jun Hu
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
- Department of Craniofacial Biology, University of Colorado School of Dental Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kurt R. Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
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Kong M, Zhou J, Kang A, Kuai Y, Xu H, Li M, Miao X, Guo Y, Fan Z, Xu Y, Li Z. Histone methyltransferase Suv39h1 regulates hepatic stellate cell activation and is targetable in liver fibrosis. Gut 2024; 73:810-824. [PMID: 38176898 DOI: 10.1136/gutjnl-2023-329671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 12/15/2023] [Indexed: 01/06/2024]
Abstract
OBJECTIVE Liver fibrosis is a prelude to a host of end-stage liver diseases. Hepatic stellate cells (HSCs), switching from a quiescent state to myofibroblasts, are the major source for excessive production of extracellular matrix proteins. In the present study, we investigated the role of Suv39h1, a lysine methyltransferase, in HSC-myofibroblast transition and the implication in liver fibrosis. DESIGN HSC-specific or myofibroblast-specific Suv39h1 deletion was achieved by crossbreeding the Suv39h1 f/f mice to the Lrat-Cre mice or the Postn-CreERT2 mice. Liver fibrosis was induced by CCl4 injection or bile duct ligation. RESULTS We report that Suv39h1 expression was universally upregulated during HSC-myofibroblast transition in different cell and animal models of liver fibrosis and in human cirrhotic liver tissues. Consistently, Suv39h1 knockdown blocked HSC-myofibroblast transition in vitro. HSC-specific or myofibroblast-specific deletion of Suv39h1 ameliorated liver fibrosis in mice. More importantly, Suv39h1 inhibition by a small-molecule compound chaetocin dampened HSC-myofibroblast transition in cell culture and mitigated liver fibrosis in mice. Mechanistically, Suv39h1 bound to the promoter of heme oxygenase 1 (HMOX1) and repressed HMOX1 transcription. HMOX1 depletion blunted the effects of Suv39h1 inhibition on HSC-myofibroblast transition in vitro and liver fibrosis in vivo. Transcriptomic analysis revealed that HMOX1 might contribute to HSC-myofibroblast transition by modulating retinol homeostasis. Finally, myofibroblast-specific HMOX1 overexpression attenuated liver fibrosis in both a preventive scheme and a therapeutic scheme. CONCLUSIONS Our data demonstrate a previously unrecognised role for Suv39h1 in liver fibrosis and offer proof-of-concept of its targetability in the intervention of cirrhosis.
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Affiliation(s)
- Ming Kong
- State Key Laboratory of Natural Medicines, Department of Pharmacology, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Junjing Zhou
- Department of Hepatobiliary Surgery, Affiliated Hospital of JiangnanUniversity, Wuxi, People's Republic of China
| | - Aoqi Kang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease and Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, People's Republic of China
| | - Yameng Kuai
- Key Laboratory of Targeted Intervention of Cardiovascular Disease and Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, People's Republic of China
| | - Huihui Xu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease and Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, People's Republic of China
| | - Min Li
- Department of Pathophysiology, Jiangsu Health Vocational College, Nanjing, People's Republic of China
| | - Xiulian Miao
- Institute of Biomedical Research and College of Life Sciences, Liaocheng University, Liaocheng, People's Republic of China
| | - Yan Guo
- Institute of Biomedical Research and College of Life Sciences, Liaocheng University, Liaocheng, People's Republic of China
| | - Zhiwen Fan
- Department of Pathology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, People's Republic of China
| | - Yong Xu
- State Key Laboratory of Natural Medicines, Department of Pharmacology, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Zilong Li
- State Key Laboratory of Natural Medicines, Department of Pharmacology, China Pharmaceutical University, Nanjing, People's Republic of China
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9
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Zuo Y, Li B, Gao M, Xiong R, He R, Li N, Geng Q. Novel insights and new therapeutic potentials for macrophages in pulmonary hypertension. Respir Res 2024; 25:147. [PMID: 38555425 PMCID: PMC10981837 DOI: 10.1186/s12931-024-02772-8] [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: 07/23/2023] [Accepted: 03/13/2024] [Indexed: 04/02/2024] Open
Abstract
Inflammation and immune processes underlie pulmonary hypertension progression. Two main different activated phenotypes of macrophages, classically activated M1 macrophages and alternatively activated M2 macrophages, are both involved in inflammatory processes related to pulmonary hypertension. Recent advances suggest that macrophages coordinate interactions among different proinflammatory and anti-inflammatory mediators, and other cellular components such as smooth muscle cells and fibroblasts. In this review, we summarize the current literature on the role of macrophages in the pathogenesis of pulmonary hypertension, including the origin of pulmonary macrophages and their response to triggers of pulmonary hypertension. We then discuss the interactions among macrophages, cytokines, and vascular adventitial fibroblasts in pulmonary hypertension, as well as the potential therapeutic benefits of macrophages in this disease. Identifying the critical role of macrophages in pulmonary hypertension will contribute to a comprehensive understanding of this pathophysiological abnormality, and may provide new perspectives for pulmonary hypertension management.
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Affiliation(s)
- Yifan Zuo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Boyang Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Minglang Gao
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Rui Xiong
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Ruyuan He
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
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Sun X, Yang Y, Zhao W, Wang M, Chen Y, Wang J, Yang D, Yang Y. MTMR7 suppresses the phenotypic switching of vascular smooth muscle cell and vascular intimal hyperplasia after injury via regulating p62/mTORC1-mediated glucose metabolism. Atherosclerosis 2024; 390:117470. [PMID: 38342025 DOI: 10.1016/j.atherosclerosis.2024.117470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/24/2023] [Accepted: 01/30/2024] [Indexed: 02/13/2024]
Abstract
BACKGROUND AND AIMS Myotubularin-related protein 7 (MTMR7) suppresses proliferation in various cell types and is associated with cardiovascular and cerebrovascular diseases. However, whether MTMR7 regulates vascular smooth muscle cell (VSMC) and vascular intimal hyperplasia remains unclear. We explored the role of MTMR7 in phenotypic switching of VSMC and vascular intimal hyperplasia after injury. METHODS AND RESULTS MTMR7 expression was significantly downregulated in injured arteries. Compared to wild type (WT) mice, Mtmr7-transgenic (Mtmr7-Tg) mice showed reduced intima/media ratio, decreased percentage of Ki-67-positive cells within neointima, and increased Calponin expression in injured artery. In vitro, upregulating MTMR7 by Len-Mtmr7 transfection inhibited platelet derived growth factor (PDGF)-BB-induced proliferation, migration of VSMC and reversed PDGF-BB-induced decrease in expression of Calponin and SM-MHC. Microarray, single cell sequence, and other bioinformatics analysis revealed that MTMR7 is highly related to glucose metabolism and mammalian target of rapamycin complex 1 (mTORC1). Further experiments confirmed that MTMR7 markedly repressed glycolysis and mTORC1 activity in PDGF-BB-challenged VSMC in vitro. Restoring mTORC1 activity abolished MTMR7-mediated suppression of glycolysis, phenotypic shift in VSMC in vitro and protection against vascular intimal hyperplasia in vivo. Furthermore, upregulating MTMR7 in vitro led to dephosphorylation and dissociation of p62 from mTORC1 in VSMC. External expression of p62 in vitro also abrogated the inhibitory effects of MTMR7 on glycolysis and phenotypic switching in PDGF-BB-stimulated VSMC. CONCLUSIONS Our study demonstrates that MTMR7 inhibits injury-induced vascular intimal hyperplasia and phenotypic switching of VSMC. Mechanistically, the beneficial effects of MTMR7 are conducted via suppressing p62/mTORC1-mediated glycolysis.
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Affiliation(s)
- Xiongshan Sun
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Yao Yang
- From the Department of Pharmacy, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Weiwei Zhao
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Mingliang Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Yingmei Chen
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Jia Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Dachun Yang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China.
| | - Yongjian Yang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China.
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11
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Dong H, Sun Y, Nie L, Cui A, Zhao P, Leung WK, Wang Q. Metabolic memory: mechanisms and diseases. Signal Transduct Target Ther 2024; 9:38. [PMID: 38413567 PMCID: PMC10899265 DOI: 10.1038/s41392-024-01755-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/29/2024] Open
Abstract
Metabolic diseases and their complications impose health and economic burdens worldwide. Evidence from past experimental studies and clinical trials suggests our body may have the ability to remember the past metabolic environment, such as hyperglycemia or hyperlipidemia, thus leading to chronic inflammatory disorders and other diseases even after the elimination of these metabolic environments. The long-term effects of that aberrant metabolism on the body have been summarized as metabolic memory and are found to assume a crucial role in states of health and disease. Multiple molecular mechanisms collectively participate in metabolic memory management, resulting in different cellular alterations as well as tissue and organ dysfunctions, culminating in disease progression and even affecting offspring. The elucidation and expansion of the concept of metabolic memory provides more comprehensive insight into pathogenic mechanisms underlying metabolic diseases and complications and promises to be a new target in disease detection and management. Here, we retrace the history of relevant research on metabolic memory and summarize its salient characteristics. We provide a detailed discussion of the mechanisms by which metabolic memory may be involved in disease development at molecular, cellular, and organ levels, with emphasis on the impact of epigenetic modulations. Finally, we present some of the pivotal findings arguing in favor of targeting metabolic memory to develop therapeutic strategies for metabolic diseases and provide the latest reflections on the consequences of metabolic memory as well as their implications for human health and diseases.
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Affiliation(s)
- Hao Dong
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuezhang Sun
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lulingxiao Nie
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Aimin Cui
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Pengfei Zhao
- Periodontology and Implant Dentistry Division, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Wai Keung Leung
- Periodontology and Implant Dentistry Division, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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12
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Wang L, Guo S, Cao K, Li Z, Li Z, Song M, Wang C, Chen P, Cui Y, Dai X, Feng D, Fu X, He J, Xu Y. Glycolysis Promotes Angiotensin II-Induced Aortic Remodeling Through Regulating Endothelial-to-Mesenchymal Transition via the Corepressor C-Terminal Binding Protein 1. Hypertension 2023; 80:2627-2640. [PMID: 37795602 DOI: 10.1161/hypertensionaha.123.21382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 09/08/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND Endothelial dysfunction plays a crucial role in aortic remodeling. Aerobic glycolysis and endothelial-to-mesenchymal transition (EndoMT) have, respectively, been suggested to contribute to endothelial dysfunction in many cardiovascular diseases. Here, we tested the hypothesis that glycolytic reprogramming is critical for EndoMT induction in aortic remodeling through an epigenetic mechanism mediated by a transcriptional corepressor CtBP1 (C-terminal binding protein 1), a sensor of glycolysis-derived NADH. METHODS EndoMT program, aortic remodeling, and endothelial expression of the glycolytic activator PFKFB3 (6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase isoform 3) were evaluated in Ang (angiotensin) II-infused mice. Mice with endothelial-specific Pfkfb3 deficiency or CtBP1 inactivation, immunoprecipitation, chromatin immunoprecipitation, and luciferase reporter assay were employed to elucidate whether and how PFKFB3/CtBP1 epigenetically controls EndoMT. RESULTS The EndoMT program and increased endothelial PFKFB3 expression were induced in remodeled thoracic aortas. In TGF-β (transforming growth factor-β)-treated human endothelial cells, activated SMAD2/3 (SMAD Family Member 2/3) transcriptionally upregulated PFKFB3 expression. In turn, the TGF-β/SMAD signaling and EndoMT were compromised by silencing or inhibition of PFKFB3. Mechanistic studies revealed that PFKFB3-mediated glycolysis increased NADH content and activated the NADH-sensitive CtBP1. Through interaction with the transcription repressor E2F4 (E2F Transcription Factor 4), CtBP1 enhanced E2F4-mediated transcriptional repression of SMURF2 (SMAD ubiquitin regulatory factor 2), a negative regulator of TGF-β/SMAD2 signaling. Additionally, EC-specific Pfkfb3 deficiency or CtBP1 inactivation in mice led to attenuated Ang II-induced aortic remodeling. CONCLUSIONS Our results demonstrate a glycolysis-mediated positive feedback loop of the TGF-β signaling to induce EndoMT and indicate that therapeutically targeting endothelial PFKFB3 or CtBP1 activity could provide a basis for treating EndoMT-linked aortic remodeling.
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Affiliation(s)
- Litao Wang
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, China (L.W.)
| | - Shuai Guo
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Kaixiang Cao
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Ziling Li
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Zou Li
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Mingchuan Song
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Cailing Wang
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Peiling Chen
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Ying Cui
- Department of Psychiatry, The Third Affiliated Hospital of Guangzhou Medical University, China (Y.C.)
| | - Xiaoyan Dai
- School of Pharmaceutical Sciences (X.D.), Guangzhou Medical University, China
| | - Du Feng
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Xiaodong Fu
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
| | - Jun He
- Guangzhou Medical University, China. Department of Rehabilitation Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, China (J.H.)
| | - Yiming Xu
- School of Basic Medical Sciences (L.W., S.G., K.C., Ziling Li, Zou Li, M.S., C.W., P.C., D.F., X.F., Y.X.), Guangzhou Medical University, China
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13
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Li M, Plecitá-Hlavatá L, Dobrinskikh E, McKeon BA, Gandjeva A, Riddle S, Laux A, Prasad RR, Kumar S, Tuder RM, Zhang H, Hu CJ, Stenmark KR. SIRT3 Is a Critical Regulator of Mitochondrial Function of Fibroblasts in Pulmonary Hypertension. Am J Respir Cell Mol Biol 2023; 69:570-583. [PMID: 37343939 PMCID: PMC10633840 DOI: 10.1165/rcmb.2022-0360oc] [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: 09/14/2022] [Accepted: 06/21/2023] [Indexed: 06/23/2023] Open
Abstract
Pulmonary hypertension (PH) is a heterogeneous and life-threatening cardiopulmonary disorder in which mitochondrial dysfunction is believed to drive pathogenesis, although the underlying mechanisms remain unclear. To determine if abnormal SIRT3 (sirtuin 3) activity is related to mitochondrial dysfunction in adventitial fibroblasts from patients with idiopathic pulmonary arterial hypertension (IPAH) and hypoxic PH calves (PH-Fibs) and whether SIRT3 could be a potential therapeutic target to improve mitochondrial function, SIRT3 concentrations in control fibroblasts, PH-Fibs, and lung tissues were determined using quantitative real-time PCR and western blot. SIRT3 deacetylase activity in cells and lung tissues was determined using western blot, immunohistochemistry staining, and immunoprecipitation. Glycolysis and mitochondrial function in fibroblasts were measured using respiratory analysis and fluorescence-lifetime imaging microscopy. The effects of restoring SIRT3 activity (by overexpression of SIRT3 with plasmid, activation SIRT3 with honokiol, and supplementation with the SIRT3 cofactor nicotinamide adenine dinucleotide [NAD+]) on mitochondrial protein acetylation, mitochondrial function, cell proliferation, and gene expression in PH-Fibs were also investigated. We found that SIRT3 concentrations were decreased in PH-Fibs and PH lung tissues, and its cofactor, NAD+, was also decreased in PH-Fibs. Increased acetylation in overall mitochondrial proteins and SIRT3-specific targets (MPC1 [mitochondrial pyruvate carrier 1] and MnSOD2 [mitochondrial superoxide dismutase]), as well as decreased MnSOD2 activity, was identified in PH-Fibs and PH lung tissues. Normalization of SIRT3 activity, by increasing its expression with plasmid or with honokiol and supplementation with its cofactor NAD+, reduced mitochondrial protein acetylation, improved mitochondrial function, inhibited proliferation, and induced apoptosis in PH-Fibs. Thus, our study demonstrated that restoration of SIRT3 activity in PH-Fibs can reduce mitochondrial protein acetylation and restore mitochondrial function and PH-Fib phenotype in PH.
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Affiliation(s)
- Min Li
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine
| | - Lydie Plecitá-Hlavatá
- Laboratory of Pancreatic Islet Research, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | | | - B. Alexandre McKeon
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine
| | - Aneta Gandjeva
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado; and
| | - Suzette Riddle
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine
| | - Aya Laux
- Department of Craniofacial Biology, and
| | - Ram Raj Prasad
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine
| | - Sushil Kumar
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine
| | - Rubin M. Tuder
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado; and
| | - Hui Zhang
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine
| | | | - Kurt R. Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine
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14
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He J, Fang B, Shan S, Li Q. Mechanical stiffness promotes skin fibrosis through Piezo1-mediated arginine and proline metabolism. Cell Death Discov 2023; 9:354. [PMID: 37752116 PMCID: PMC10522626 DOI: 10.1038/s41420-023-01656-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 09/08/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023] Open
Abstract
The increased mechanics of fibrotic skin tissue continuously regulate fibroblast functions such as survival and differentiation. Although all these processes consume metabolites, it is unclear whether and how cells adapt their metabolic activity to increased matrix stiffness. Here, we show that transferring mouse dermal fibroblasts from soft to stiff substrates causes an up-regulation of arginine and proline metabolism. Increased matrix stiffness stimulates the expression and activity of key metabolic enzymes, leading to the synthesis of L-proline, a major source of collagen. In addition, the novel mechanosensitive channel Piezo1 was identified as a key regulator of arginine and proline metabolism in fibroblasts under increased stiffness. Consistently, targeting Piezo1 to dermal fibroblasts in vivo effectively reduces fibrosis and arginine-proline metabolism in mouse skin. Therefore, mechanical stiffness is a critical environmental cue for fibroblast metabolism and skin fibrosis progression.
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Affiliation(s)
- Jiahao He
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China
| | - Bin Fang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China.
| | - Shengzhou Shan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China.
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China.
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15
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Wawrzyniak R, Biesemans M, Kugacka-Dąbrowska A, Lewicka E, Bartoszewski R, Markuszewski MJ. Plasma untargeted metabolomics with proteinase K discloses phospholipid signature associated with pulmonary arterial hypertension. Sci Rep 2023; 13:15280. [PMID: 37714912 PMCID: PMC10504264 DOI: 10.1038/s41598-023-42293-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/07/2023] [Indexed: 09/17/2023] Open
Abstract
Pulmonary arterial hypertension is a rare but life-threatening and clinically heterogeneous disease. The diagnostic schedule of this disorder is complex, and no specific indicator of the arterial etiology has been explored. In this study, untargeted plasma metabolomics was applied to evaluate the metabolic fingerprints of pulmonary arterial hypertension patients. Plasma samples were prepared using a new approach, which applies proteinase K during the sample preparation procedure to increase the metabolite coverage. The metabolic fingerprints were determined via LC-MS and subsequently analyzed with the use of both uni- and multivariate statistics. A total of 21 metabolites were discovered to be significantly altered in pulmonary arterial hypertensive patients. The metabolites were mainly related to the phospholipid metabolic pathways. In this study, decreases were found in the phosphatidylcholines (PCs) [PC(32:0), PC(40:7), PC(42:7)], phosphatidylethanolamine PE(18:0/18:2), lysophosphatidylethanolamines (LPEs) [LPE(22:6), LPE(18:2), LPE(18:0), LPE(20:4), LPE(20:1), LPE(20:0)], lysophosphatidylcholine LPC(20:4) and lysophosphatidylserine LPS(19:0), as well as increase of sphingomyelin SM(36:2), in the plasma samples of pulmonary arterial hypertensive patients in comparison to the control group. Besides their function as components of the biological membranes, these metabolites are also involved in the intracellular signaling pathways that are related to cell proliferation and apoptosis. The results obtained during this study confirm the potential of (untargeted) metabolomics to identify the molecular characteristics of the pathophysiology of pulmonary arterial hypertension. The clinical relevance of this study constitutes the selection of a metabolic panel that can potentially detect and properly diagnose the disease.
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Affiliation(s)
- Renata Wawrzyniak
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland.
| | - Margot Biesemans
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Alicja Kugacka-Dąbrowska
- Department of Cardiology and Electrotherapy, Medical University of Gdansk, Debinki 7, 80-210, Gdańsk, Poland
| | - Ewa Lewicka
- Department of Cardiology and Electrotherapy, Medical University of Gdansk, Debinki 7, 80-210, Gdańsk, Poland
| | - Rafał Bartoszewski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Ul. F. Joliot-Curie 14A, 50-383, Wrocław, Poland
| | - Michał J Markuszewski
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
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16
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van Kuijk K, McCracken IR, Tillie RJHA, Asselberghs SEJ, Kheder DA, Muitjens S, Jin H, Taylor RS, Wichers Schreur R, Kuppe C, Dobie R, Ramachandran P, Gijbels MJ, Temmerman L, Kirkwoord PM, Luyten J, Li Y, Noels H, Goossens P, Wilson-Kanamori JR, Schurgers LJ, Shen YH, Mees BME, Biessen EAL, Henderson NC, Kramann R, Baker AH, Sluimer JC. Human and murine fibroblast single-cell transcriptomics reveals fibroblast clusters are differentially affected by ageing and serum cholesterol. Cardiovasc Res 2023; 119:1509-1523. [PMID: 36718802 PMCID: PMC10318398 DOI: 10.1093/cvr/cvad016] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/21/2022] [Accepted: 11/04/2022] [Indexed: 02/01/2023] Open
Abstract
AIMS Specific fibroblast markers and in-depth heterogeneity analysis are currently lacking, hindering functional studies in cardiovascular diseases (CVDs). Here, we established cell-type markers and heterogeneity in murine and human arteries and studied the adventitial fibroblast response to CVD and its risk factors hypercholesterolaemia and ageing. METHODS AND RESULTS Murine aorta single-cell RNA-sequencing analysis of adventitial mesenchymal cells identified fibroblast-specific markers. Immunohistochemistry and flow cytometry validated platelet-derived growth factor receptor alpha (PDGFRA) and dipeptidase 1 (DPEP1) across human and murine aorta, carotid, and femoral arteries, whereas traditional markers such as the cluster of differentiation (CD)90 and vimentin also marked transgelin+ vascular smooth muscle cells. Next, pseudotime analysis showed multiple fibroblast clusters differentiating along trajectories. Three trajectories, marked by CD55 (Cd55+), Cxcl chemokine 14 (Cxcl14+), and lysyl oxidase (Lox+), were reproduced in an independent RNA-seq dataset. Gene ontology (GO) analysis showed divergent functional profiles of the three trajectories, related to vascular development, antigen presentation, and/or collagen fibril organization, respectively. Trajectory-specific genes included significantly more genes with known genome-wide associations (GWAS) to CVD than expected by chance, implying a role in CVD. Indeed, differential regulation of fibroblast clusters by CVD risk factors was shown in the adventitia of aged C57BL/6J mice, and mildly hypercholesterolaemic LDLR KO mice on chow by flow cytometry. The expansion of collagen-related CXCL14+ and LOX+ fibroblasts in aged and hypercholesterolaemic aortic adventitia, respectively, coincided with increased adventitial collagen. Immunohistochemistry, bulk, and single-cell transcriptomics of human carotid and aorta specimens emphasized translational value as CD55+, CXCL14+ and LOX+ fibroblasts were observed in healthy and atherosclerotic specimens. Also, trajectory-specific gene sets are differentially correlated with human atherosclerotic plaque traits. CONCLUSION We provide two adventitial fibroblast-specific markers, PDGFRA and DPEP1, and demonstrate fibroblast heterogeneity in health and CVD in humans and mice. Biological relevance is evident from the regulation of fibroblast clusters by age and hypercholesterolaemia in vivo, associations with human atherosclerotic plaque traits, and enrichment of genes with a GWAS for CVD.
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Affiliation(s)
- Kim van Kuijk
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Ian R McCracken
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Renée J H A Tillie
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Sebastiaan E J Asselberghs
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Dlzar A Kheder
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Stan Muitjens
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Han Jin
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Richard S Taylor
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Ruud Wichers Schreur
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Christoph Kuppe
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- Division of Nephrology and Clinical Immunology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Ross Dobie
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Prakesh Ramachandran
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam UMC, Amsterdam, The Netherlands
| | - Marion J Gijbels
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam UMC, Amsterdam, The Netherlands
- GROW, School for Oncology and Development Biology, Maastricht University, Maastricht, The Netherlands
| | - Lieve Temmerman
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Phoebe M Kirkwoord
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Joris Luyten
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Yanming Li
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, TX, USA
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX, USA
| | - Heidi Noels
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Pieter Goossens
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - John R Wilson-Kanamori
- Division of Nephrology and Clinical Immunology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Leon J Schurgers
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Ying H Shen
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, TX, USA
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX, USA
| | - Barend M E Mees
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Erik A L Biessen
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - Neil C Henderson
- Division of Nephrology and Clinical Immunology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Rafael Kramann
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Andrew H Baker
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Judith C Sluimer
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
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17
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Ma Q, Yang Q, Xu J, Sellers HG, Brown ZL, Liu Z, Bordan Z, Shi X, Zhao D, Cai Y, Pareek V, Zhang C, Wu G, Dong Z, Verin AD, Gan L, Du Q, Benkovic SJ, Xu S, Asara JM, Ben-Sahra I, Barman S, Su Y, Fulton DJR, Huo Y. Purine synthesis suppression reduces the development and progression of pulmonary hypertension in rodent models. Eur Heart J 2023; 44:1265-1279. [PMID: 36721994 PMCID: PMC10319969 DOI: 10.1093/eurheartj/ehad044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 12/30/2022] [Accepted: 01/18/2023] [Indexed: 02/02/2023] Open
Abstract
AIMS Proliferation of vascular smooth muscle cells (VSMCs) is a hallmark of pulmonary hypertension (PH). Proliferative cells utilize purine bases from the de novo purine synthesis (DNPS) pathways for nucleotide synthesis; however, it is unclear whether DNPS plays a critical role in VSMC proliferation during development of PH. The last two steps of DNPS are catalysed by the enzyme 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase/inosine monophosphate cyclohydrolase (ATIC). This study investigated whether ATIC-driven DNPS affects the proliferation of pulmonary artery smooth muscle cells (PASMCs) and the development of PH. METHODS AND RESULTS Metabolites of DNPS in proliferative PASMCs were measured by liquid chromatography-tandem mass spectrometry. ATIC expression was assessed in platelet-derived growth factor-treated PASMCs and in the lungs of PH rodents and patients with pulmonary arterial hypertension. Mice with global and VSMC-specific knockout of Atic were utilized to investigate the role of ATIC in both hypoxia- and lung interleukin-6/hypoxia-induced murine PH. ATIC-mediated DNPS at the mRNA, protein, and enzymatic activity levels were increased in platelet-derived growth factor-treated PASMCs or PASMCs from PH rodents and patients with pulmonary arterial hypertension. In cultured PASMCs, ATIC knockdown decreased DNPS and nucleic acid DNA/RNA synthesis, and reduced cell proliferation. Global or VSMC-specific knockout of Atic attenuated vascular remodelling and inhibited the development and progression of both hypoxia- and lung IL-6/hypoxia-induced PH in mice. CONCLUSION Targeting ATIC-mediated DNPS compromises the availability of purine nucleotides for incorporation into DNA/RNA, reducing PASMC proliferation and pulmonary vascular remodelling and ameliorating the development and progression of PH.
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Affiliation(s)
- Qian Ma
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Qiuhua Yang
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Jiean Xu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Hunter G Sellers
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Zach L Brown
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Zhiping Liu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Zsuzsanna Bordan
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Xiaofan Shi
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Dingwei Zhao
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Yongfeng Cai
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Vidhi Pareek
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, PA 16802, USA
| | - Chunxiang Zhang
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China
| | - Guangyu Wu
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Alexander D Verin
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Lin Gan
- Department of Neuroscience & Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Quansheng Du
- Department of Neuroscience & Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Stephen J Benkovic
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania, PA 16802, USA
| | - Suowen Xu
- Department of Endocrinology, the First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei 230001, China
| | - John M Asara
- Division of Signal Transduction, Beth Israel Deaconess Medical Center and Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Issam Ben-Sahra
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL 60611, USA
| | - Scott Barman
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Yunchao Su
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - David J R Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
| | - Yuqing Huo
- Vascular Biology Center, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Sanders Building, CB-3919A, 1460 Laney Walker Blvd, Augusta, GA 30912-2500, USA
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18
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Zhou J, Yan X, Liu Y, Yang J. Succinylation of CTBP1 mediated by KAT2A suppresses its inhibitory activity on the transcription of CDH1 to promote the progression of prostate cancer. Biochem Biophys Res Commun 2023; 650:9-16. [PMID: 36764210 DOI: 10.1016/j.bbrc.2023.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/05/2023]
Abstract
CTBP1 has been demonstrated as a co-repressor in the transcriptional regulation of downstream genes and is involved in various cell process. However, the mechanism of CTBP1 in the progression of prostate cancer is still unclear. Here, we aim to investigate how CTBP1 exerts its role in prostate cancer progression, especially how CTBP1 was regulated by the upstream genes. We found that CTBP1 was highly expressed in prostate cancer and promoted the cell viability, migration, invasion and glycolysis of prostate cancer cells. CDH1 was verified to be the target of CTBP1. We determined that CTBP1 could directly bind with SP1 to inhibit the transcription of CDH1. Moreover, succinylation of CTBP1 was found to be up-regulated in prostate cancer cell. Further studies demonstrated that KAT2A promotes the succinylation of CTBP1 and mediates the transcription suppressing activity of it. In addition, the K46 and K280 was confirmed to be the two sites that regulated by KAT2A. In vivo studies further indicated that CTBP1 could promote the growth of prostate cancer, and this effect of CTBP1 could be partially reversed by KAT2A knockdown. Taken together, we found that succinylation of CTBP1 mediated by KAT2A suppresses the inhibitory activity of CTBP1 on the transcription of CDH1, thus act as an oncogene.
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Affiliation(s)
- Jinmeng Zhou
- Department of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China; Department of Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiaoting Yan
- Department of Urology, The First Hospital of Shanxi Medical University, Taiyuan, China
| | - Ying Liu
- Department of Geriatrics,Beijing Jishuitan Hospital, Beijing, China
| | - Jihong Yang
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China; Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing, China.
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19
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Zhang H, D'Alessandro A, Li M, Reisz JA, Riddle S, Muralidhar A, Bull T, Zhao L, Gerasimovskaya E, Stenmark KR. Histone deacetylase inhibitors synergize with sildenafil to suppress purine metabolism and proliferation in pulmonary hypertension. Vascul Pharmacol 2023; 149:107157. [PMID: 36849042 PMCID: PMC10067337 DOI: 10.1016/j.vph.2023.107157] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 02/22/2023] [Indexed: 02/27/2023]
Abstract
RATIONALE Sildenafil, a well-known vasodilator known to interfere with purinergic signaling through effects on cGMP, is a mainstay in the treatment of pulmonary hypertension (PH). However, little is known regarding its effects on the metabolic reprogramming of vascular cells, which is a hallmark of PH. Purine metabolism, especially intracellular de novo purine biosynthesis is essential for vascular cell proliferation. Since adventitial fibroblasts are critical contributors to proliferative vascular remodeling in PH, in this study we aimed to investigate if sildenafil, beyond its well-known vasodilator role in smooth muscle cells, impacts intracellular purine metabolism and proliferation of fibroblasts derived from human PH patients. METHODS Integrated omics approaches (plasma and cell metabolomics) and pharmacological inhibitor approaches were employed in plasma samples and cultured pulmonary artery fibroblasts from PH patients. MEASUREMENTS AND MAIN RESULTS Plasma metabolome analysis of 27 PH patients before and after treatment with sildenafil, demonstrated a partial, but specific effect of sildenafil on purine metabolites, especially adenosine, adenine, and xanthine. However, circulating markers of cell stress, including lactate, succinate, and hypoxanthine were only decreased in a small subset of sildenafil-treated patients. To better understand potential effects of sildenafil on pathological changes in purine metabolism (especially purine synthesis) in PH, we performed studies on pulmonary fibroblasts from PAH patients (PH-Fibs) and corresponding controls (CO-Fibs), since these cells have previously been shown to demonstrate stable and marked PH associated phenotypic and metabolic changes. We found that PH-Fibs exhibited significantly increased purine synthesis. Treatment of PH-Fibs with sildenafil was insufficient to normalize cellular metabolic phenotype and only modestly attenuated the proliferation. However, we observed that treatments which have been shown to normalize glycolysis and mitochondrial abnormalities including a PKM2 activator (TEPP-46), and the histone deacetylase inhibitors (HDACi), SAHA and Apicidin, had significant inhibitory effects on purine synthesis. Importantly, combined treatment with HDACi and sildenafil exhibited synergistic inhibitory effects on proliferation and metabolic reprogramming in PH-Fibs. CONCLUSIONS While sildenafil alone partially rescues metabolic alterations associated with PH, treatment with HDACi, in combination with sildenafil, represent a promising and potentially more effective strategy for targeting vasoconstriction, metabolic derangement and pathological vascular remodeling in PH.
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Affiliation(s)
- Hui Zhang
- Cardiovascular Pulmonary Research Laboratories, Department of Pediatrics and Medicine, University of Colorado School of Medicine, Denver, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Denver, USA
| | - Min Li
- Cardiovascular Pulmonary Research Laboratories, Department of Pediatrics and Medicine, University of Colorado School of Medicine, Denver, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Denver, USA
| | - Suzette Riddle
- Cardiovascular Pulmonary Research Laboratories, Department of Pediatrics and Medicine, University of Colorado School of Medicine, Denver, USA
| | - Akshay Muralidhar
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Denver, USA
| | - Todd Bull
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Denver, USA
| | - Lan Zhao
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, Hammersmith Hospital, London, UK
| | - Evgenia Gerasimovskaya
- Cardiovascular Pulmonary Research Laboratories, Department of Pediatrics and Medicine, University of Colorado School of Medicine, Denver, USA
| | - Kurt R Stenmark
- Cardiovascular Pulmonary Research Laboratories, Department of Pediatrics and Medicine, University of Colorado School of Medicine, Denver, USA.
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20
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Yang L, Wan N, Gong F, Wang X, Feng L, Liu G. Transcription factors and potential therapeutic targets for pulmonary hypertension. Front Cell Dev Biol 2023; 11:1132060. [PMID: 37009479 PMCID: PMC10064017 DOI: 10.3389/fcell.2023.1132060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 03/03/2023] [Indexed: 03/19/2023] Open
Abstract
Pulmonary hypertension (PH) is a refractory and fatal disease characterized by excessive pulmonary arterial cell remodeling. Uncontrolled proliferation and hypertrophy of pulmonary arterial smooth muscle cells (PASMCs), dysfunction of pulmonary arterial endothelial cells (PAECs), and abnormal perivascular infiltration of immune cells result in pulmonary arterial remodeling, followed by increased pulmonary vascular resistance and pulmonary pressure. Although various drugs targeting nitric oxide, endothelin-1 and prostacyclin pathways have been used in clinical settings, the mortality of pulmonary hypertension remains high. Multiple molecular abnormalities have been implicated in pulmonary hypertension, changes in numerous transcription factors have been identified as key regulators in pulmonary hypertension, and a role for pulmonary vascular remodeling has been highlighted. This review consolidates evidence linking transcription factors and their molecular mechanisms, from pulmonary vascular intima PAECs, vascular media PASMCs, and pulmonary arterial adventitia fibroblasts to pulmonary inflammatory cells. These findings will improve the understanding of particularly interactions between transcription factor-mediated cellular signaling pathways and identify novel therapies for pulmonary hypertension.
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Affiliation(s)
- Liu Yang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Naifu Wan
- Department of Vascular & Cardiology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fanpeng Gong
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xianfeng Wang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Lei Feng
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Guizhu Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
- *Correspondence: Guizhu Liu,
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21
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Wertheim BM, Wang RS, Guillermier C, Hütter CV, Oldham WM, Menche J, Steinhauser ML, Maron BA. Proline and glucose metabolic reprogramming supports vascular endothelial and medial biomass in pulmonary arterial hypertension. JCI Insight 2023; 8:163932. [PMID: 36626231 PMCID: PMC9977503 DOI: 10.1172/jci.insight.163932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
In pulmonary arterial hypertension (PAH), inflammation promotes a fibroproliferative pulmonary vasculopathy. Reductionist studies emphasizing single biochemical reactions suggest a shift toward glycolytic metabolism in PAH; however, key questions remain regarding the metabolic profile of specific cell types within PAH vascular lesions in vivo. We used RNA-Seq to profile the transcriptome of pulmonary artery endothelial cells (PAECs) freshly isolated from an inflammatory vascular injury model of PAH ex vivo, and these data were integrated with information from human gene ontology pathways. Network medicine was then used to map all aa and glucose pathways to the consolidated human interactome, which includes data on 233,957 physical protein-protein interactions. Glucose and proline pathways were significantly close to the human PAH disease module, suggesting that these pathways are functionally relevant to PAH pathobiology. To test this observation in vivo, we used multi-isotope imaging mass spectrometry to map and quantify utilization of glucose and proline in the PAH pulmonary vasculature at subcellular resolution. Our findings suggest that elevated glucose and proline avidity underlie increased biomass in PAECs and the media of fibrosed PAH pulmonary arterioles. Overall, these data show that anabolic utilization of glucose and proline are fundamental to the vascular pathology of PAH.
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Affiliation(s)
| | - Rui-Sheng Wang
- Division of Cardiovascular Medicine, Department of Medicine.,Channing Division of Network Medicine, Department of Medicine; and
| | - Christelle Guillermier
- Division of Genetics, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Center for NanoImaging, Cambridge, Massachusetts, USA
| | - Christiane Vr Hütter
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.,Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria.,Vienna BioCenter PhD Program, Doctoral School of the University of Vienna and the Medical University of Vienna, Vienna, Austria
| | - William M Oldham
- Division of Pulmonary and Critical Medicine, Department of Medicine
| | - Jörg Menche
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.,Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria.,Faculty of Mathematics, University of Vienna, Vienna, Austria
| | - Matthew L Steinhauser
- Division of Genetics, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Center for NanoImaging, Cambridge, Massachusetts, USA.,Division of Cardiovascular Medicine, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.,Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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22
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Novel Molecular Mechanisms Involved in the Medical Treatment of Pulmonary Arterial Hypertension. Int J Mol Sci 2023; 24:ijms24044147. [PMID: 36835558 PMCID: PMC9965798 DOI: 10.3390/ijms24044147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a severe condition with a high mortality rate despite advances in diagnostic and therapeutic strategies. In recent years, significant scientific progress has been made in the understanding of the underlying pathobiological mechanisms. Since current available treatments mainly target pulmonary vasodilation, but lack an effect on the pathological changes that develop in the pulmonary vasculature, there is need to develop novel therapeutic compounds aimed at antagonizing the pulmonary vascular remodeling. This review presents the main molecular mechanisms involved in the pathobiology of PAH, discusses the new molecular compounds currently being developed for the medical treatment of PAH and assesses their potential future role in the therapeutic algorithms of PAH.
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23
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Ryanto GRT, Suraya R, Nagano T. Mitochondrial Dysfunction in Pulmonary Hypertension. Antioxidants (Basel) 2023; 12:372. [PMID: 36829931 PMCID: PMC9952650 DOI: 10.3390/antiox12020372] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/21/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
Pulmonary hypertension (PH) is a multi-etiological condition with a similar hemodynamic clinical sign and end result of right heart failure. Although its causes vary, a similar link across all the classifications is the presence of mitochondrial dysfunction. Mitochondria, as the powerhouse of the cells, hold a number of vital roles in maintaining normal cellular homeostasis, including the pulmonary vascular cells. As such, any disturbance in the normal functions of mitochondria could lead to major pathological consequences. The Warburg effect has been established as a major finding in PH conditions, but other mitochondria-related metabolic and oxidative stress factors have also been reported, making important contributions to the progression of pulmonary vascular remodeling that is commonly found in PH pathophysiology. In this review, we will discuss the role of the mitochondria in maintaining a normal vasculature, how it could be altered during pulmonary vascular remodeling, and the therapeutic options available that can treat its dysfunction.
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Affiliation(s)
- Gusty Rizky Teguh Ryanto
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, Kobe 658-8558, Japan
| | - Ratoe Suraya
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Tatsuya Nagano
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
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24
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Breault NM, Wu D, Dasgupta A, Chen KH, Archer SL. Acquired disorders of mitochondrial metabolism and dynamics in pulmonary arterial hypertension. Front Cell Dev Biol 2023; 11:1105565. [PMID: 36819102 PMCID: PMC9933518 DOI: 10.3389/fcell.2023.1105565] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/09/2023] [Indexed: 02/05/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is an orphan disease of the cardiopulmonary unit that reflects an obstructive pulmonary vasculopathy and presents with hypertrophy, inflammation, fibrosis, and ultimately failure of the right ventricle (RVF). Despite treatment using pulmonary hypertension (PH)-targeted therapies, persistent functional impairment reduces the quality of life for people with PAH and death from RVF occurs in approximately 40% of patients within 5 years of diagnosis. PH-targeted therapeutics are primarily vasodilators and none, alone or in combination, are curative. This highlights a need to therapeutically explore molecular targets in other pathways that are involved in the pathogenesis of PAH. Several candidate pathways in PAH involve acquired mitochondrial dysfunction. These mitochondrial disorders include: 1) a shift in metabolism related to increased expression of pyruvate dehydrogenase kinase and pyruvate kinase, which together increase uncoupled glycolysis (Warburg metabolism); 2) disruption of oxygen-sensing related to increased expression of hypoxia-inducible factor 1α, resulting in a state of pseudohypoxia; 3) altered mitochondrial calcium homeostasis related to impaired function of the mitochondrial calcium uniporter complex, which elevates cytosolic calcium and reduces intramitochondrial calcium; and 4) abnormal mitochondrial dynamics related to increased expression of dynamin-related protein 1 and its binding partners, such as mitochondrial dynamics proteins of 49 kDa and 51 kDa, and depressed expression of mitofusin 2, resulting in increased mitotic fission. These acquired mitochondrial abnormalities increase proliferation and impair apoptosis in most pulmonary vascular cells (including endothelial cells, smooth muscle cells and fibroblasts). In the RV, Warburg metabolism and induction of glutaminolysis impairs bioenergetics and promotes hypokinesis, hypertrophy, and fibrosis. This review will explore our current knowledge of the causes and consequences of disordered mitochondrial function in PAH.
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Affiliation(s)
- Nolan M. Breault
- Department of Medicine, Queen’s University, Kingston, ON, Canada
| | - Danchen Wu
- Department of Medicine, Queen’s University, Kingston, ON, Canada,*Correspondence: Danchen Wu, ; Stephen L. Archer,
| | - Asish Dasgupta
- Department of Medicine, Queen’s University, Kingston, ON, Canada
| | - Kuang-Hueih Chen
- Department of Medicine, Queen’s University, Kingston, ON, Canada
| | - Stephen L. Archer
- Department of Medicine, Queen’s University, Kingston, ON, Canada,Queen’s Cardiopulmonary Unit (QCPU), Translational Institute of Medicine (TIME), Department of Medicine, Queen’s University, Kingston, ON, Canada,*Correspondence: Danchen Wu, ; Stephen L. Archer,
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25
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Bousseau S, Sobrano Fais R, Gu S, Frump A, Lahm T. Pathophysiology and new advances in pulmonary hypertension. BMJ MEDICINE 2023; 2:e000137. [PMID: 37051026 PMCID: PMC10083754 DOI: 10.1136/bmjmed-2022-000137] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 02/02/2023] [Indexed: 04/14/2023]
Abstract
Pulmonary hypertension is a progressive and often fatal cardiopulmonary condition characterised by increased pulmonary arterial pressure, structural changes in the pulmonary circulation, and the formation of vaso-occlusive lesions. These changes lead to increased right ventricular afterload, which often progresses to maladaptive right ventricular remodelling and eventually death. Pulmonary arterial hypertension represents one of the most severe and best studied types of pulmonary hypertension and is consistently targeted by drug treatments. The underlying molecular pathogenesis of pulmonary hypertension is a complex and multifactorial process, but can be characterised by several hallmarks: inflammation, impaired angiogenesis, metabolic alterations, genetic or epigenetic abnormalities, influence of sex and sex hormones, and abnormalities in the right ventricle. Current treatments for pulmonary arterial hypertension and some other types of pulmonary hypertension target pathways involved in the control of pulmonary vascular tone and proliferation; however, these treatments have limited efficacy on patient outcomes. This review describes key features of pulmonary hypertension, discusses current and emerging therapeutic interventions, and points to future directions for research and patient care. Because most progress in the specialty has been made in pulmonary arterial hypertension, this review focuses on this type of pulmonary hypertension. The review highlights key pathophysiological concepts and emerging therapeutic directions, targeting inflammation, cellular metabolism, genetics and epigenetics, sex hormone signalling, bone morphogenetic protein signalling, and inhibition of tyrosine kinase receptors.
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Affiliation(s)
- Simon Bousseau
- Division of Pulmonary, Sleep, and Critical Care Medicine, National Jewish Health, Denver, CO, USA
| | - Rafael Sobrano Fais
- Division of Pulmonary, Sleep, and Critical Care Medicine, National Jewish Health, Denver, CO, USA
| | - Sue Gu
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Cardiovascular Pulmonary Research Lab, University of Colorado School of Medicine, Aurora, CO, USA
| | - Andrea Frump
- Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tim Lahm
- Division of Pulmonary, Sleep, and Critical Care Medicine, National Jewish Health, Denver, CO, USA
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Rocky Mountain Regional Veteran Affairs Medical Center, Aurora, CO, USA
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26
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Xia X, Huang L, Zhou S, Han R, Li P, Wang E, Xia W, Fei G, Zeng D, Wang R. Hypoxia-induced long non-coding RNA plasmacytoma variant translocation 1 upregulation aggravates pulmonary arterial smooth muscle cell proliferation by regulating autophagy via miR-186/Srf/Ctgf and miR-26b/Ctgf signaling pathways. Int J Cardiol 2023; 370:368-377. [PMID: 36174828 DOI: 10.1016/j.ijcard.2022.09.060] [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: 04/13/2022] [Revised: 09/11/2022] [Accepted: 09/22/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The lncRNA PVT1 reportedly functions as a competing endogenous RNA (ceRNA) of miR-186 and miR-26b in different tissue types. In this study, we investigated the possible involvement of the miR-186/Srf/Ctgf and miR-26b/Ctgf signaling pathways in the pathogenesis of hypoxia-induced PAH. METHODS Expression of PVT1, miR-186, miR-26b, and Srf and Ctgf mRNAs were evaluated by real-time polymerase chain reaction. Protein expression of SRF, CTGF, LC3B-I, LC3B-II, and Beclin-I was evaluated using western blotting. The regulatory relationship between the lncRNA, miRNAs, and target mRNAs was explored using luciferase assays. Immunohistochemistry was used to evaluate the expression of SRF and CTGF in situ. MTT assay was performed to assess the proliferation of PASMCs. RESULTS Exposure to hypoxia markedly altered the expression of PVT1, Srf, Ctgf, miR-186, and miR-26b in a rat model. MiR-186 binding sites in the sequences of Srf mRNA and PVT1 were confirmed by luciferase assays, indicating that miR-186 may interact with both PVT1 and Srf mRNA. Additionally, miR-26b binding sites were identified in the sequences of Ctgf mRNA and PVT1, suggesting that miR-26b may interact with both PVT1 and Ctgf mRNA. In line with this, we found that overexpression of PVT1 reduced expression of miR-26b and miR-186 but activated expression of Srf, Ctgf, LC3B-II, and Beclin-I. CONCLUSIONS Upregulation of PVT1 by exposure to hypoxia promoted the expression of CTGF, leading to deregulation of autophagy and abnormal proliferation of PASMCs. Dysregulation of the miR-186/Srf/Ctgf and miR-26b/Ctgf signaling pathways may be involved in the pathogenesis of hypoxia-induced PASMCs.
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Affiliation(s)
- Xingyuan Xia
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei 230022, China
| | - Ling Huang
- Department of Infectious Diseases, Hefei second people's hospital, Hefei 230001, China
| | - Sijing Zhou
- Department of Occupational Diseases, Hefei third clinical college of Anhui Medical University, Hefei 230022, China
| | - Rui Han
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei 230022, China
| | - Pulin Li
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei 230022, China
| | - Enze Wang
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei 230022, China
| | - Wanli Xia
- Department of thoracic surgery, the first affiliated hospital of Anhui medical university, Hefei 230022, China
| | - Guanghe Fei
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei 230022, China.
| | - Daxiong Zeng
- Department of pulmonary and critical care medicine, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou 215006, China.
| | - Ran Wang
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei 230022, China.
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27
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Bousseau S, Lahm T. Hungry for Chloride: Reprogramming Endothelial Cell Metabolism in Pulmonary Arterial Hypertension. Am J Respir Cell Mol Biol 2023; 68:11-12. [PMID: 36269721 PMCID: PMC9817906 DOI: 10.1165/rcmb.2022-0386ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Simon Bousseau
- Division of Pulmonary, Sleep, and Critical Care Medicine National Jewish Health Denver, Colorado
| | - Tim Lahm
- Division of Pulmonary, Sleep, and Critical Care Medicine National Jewish Health Denver, Colorado
- Division of Pulmonary Sciences and Critical Care Medicine University of Colorado Anschutz Medical Campus Aurora, Colorado
- Rocky Mountain Regional Veteran Affairs Medical Center Aurora, Colorado
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KLF4-PFKFB3-driven glycolysis is essential for phenotypic switching of vascular smooth muscle cells. Commun Biol 2022; 5:1332. [PMID: 36470917 PMCID: PMC9722670 DOI: 10.1038/s42003-022-04302-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 11/26/2022] [Indexed: 12/12/2022] Open
Abstract
Vascular smooth muscle cells (VSMCs) within atherosclerotic lesions undergo a phenotypic switching in a KLF4-dependent manner. Glycolysis plays important roles in transdifferentiation of somatic cells, however, it is unclear whether and how KLF4 mediates the link between glycolytic switch and VSMCs phenotypic transitions. Here, we show that KLF4 upregulation accompanies VSMCs phenotypic switching in atherosclerotic lesions. KLF4 enhances the metabolic switch to glycolysis through increasing PFKFB3 expression. Inhibiting glycolysis suppresses KLF4-induced VSMCs phenotypic switching, demonstrating that glycolytic shift is required for VSMCs phenotypic switching. Mechanistically, KLF4 upregulates expression of circCTDP1 and eEF1A2, both of which cooperatively promote PFKFB3 expression. TMAO induces glycolytic shift and VSMCs phenotypic switching by upregulating KLF4. Our study indicates that KLF4 mediates the link between glycolytic switch and VSMCs phenotypic transitions, suggesting that a previously unrecognized KLF4-eEF1A2/circCTDP1-PFKFB3 axis plays crucial roles in VSMCs phenotypic switching.
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29
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Kuhn AR, van Bilsen M. Oncometabolism: A Paradigm for the Metabolic Remodeling of the Failing Heart. Int J Mol Sci 2022; 23:ijms232213902. [PMID: 36430377 PMCID: PMC9699042 DOI: 10.3390/ijms232213902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
Heart failure is associated with profound alterations in cardiac intermediary metabolism. One of the prevailing hypotheses is that metabolic remodeling leads to a mismatch between cardiac energy (ATP) production and demand, thereby impairing cardiac function. However, even after decades of research, the relevance of metabolic remodeling in the pathogenesis of heart failure has remained elusive. Here we propose that cardiac metabolic remodeling should be looked upon from more perspectives than the mere production of ATP needed for cardiac contraction and relaxation. Recently, advances in cancer research have revealed that the metabolic rewiring of cancer cells, often coined as oncometabolism, directly impacts cellular phenotype and function. Accordingly, it is well feasible that the rewiring of cardiac cellular metabolism during the development of heart failure serves similar functions. In this review, we reflect on the influence of principal metabolic pathways on cellular phenotype as originally described in cancer cells and discuss their potential relevance for cardiac pathogenesis. We discuss current knowledge of metabolism-driven phenotypical alterations in the different cell types of the heart and evaluate their impact on cardiac pathogenesis and therapy.
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30
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Zheng H, Hua J, Li H, He W, Chen X, Ji Y, Li Q. Comprehensive analysis of the expression of N6-methyladenosine RNA methylation regulators in pulmonary artery hypertension. Front Genet 2022; 13:974740. [PMID: 36171892 PMCID: PMC9510777 DOI: 10.3389/fgene.2022.974740] [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: 06/21/2022] [Accepted: 08/11/2022] [Indexed: 11/19/2022] Open
Abstract
Background: Pulmonary arterial hypertension (PAH) is a progressive disease characterized by pulmonary vascular remodeling. The development of PAH involves N6-methyladenosine (m6A) modification. However, the functional role of m6A regulators in PAH and the underlying regulatory mechanisms remain unknown so far. Methods: Microarray data (GSE149713) for monocrotaline induced PAH (MCT-PAH) rat models were downloaded and screened for differentially expressed genes (DEGs) and m6A regulators. Next, we screened for differentially expressed m6A regulators in endothelial cells (ECs), smooth muscle cells (SMCs), fibroblasts, interstitial macrophages, NK cells, B cells, T cells, regulatory T cells (Tregs) using scRNA sequencing data. The target DEGs of m6A regulators in ECs, SMCs, fibroblasts, and Tregs were functionally annotated using the Gene Ontology (GO) functional analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. In addition, the cellular interaction analysis was performed to reveal the receptor—ligand pairs regulated by m6A regulators. Pseudo-time trajectory analyses were performed and a ceRNA network of lncRNAs-miRNAs-mRNAs was constructed in SMCs. Furthermore, the RNA transcriptome sequencing data for the SMCs isolated from idiopathic PAH (IPAH) patients (GSE144274) were validated for differentially expressed m6A regulators. Moreover, the HNRNPA2B1 levels in the lung samples from PAH patients and MCT-PAH were determined using immunohistochemistry. Results: The m6A regulators were observed to be dysregulated in PAH. HNRNPA2B1expression level was increased in the PASMCs of scRNAs and IPAH patients. The target DEGs of HNRNPA2B1 were enriched in the regulation of muscle cell differentiation and vasculature development in PASMCs. The HNRNPA2B1 expression levels determined were consistent with the proliferation-related and collagen synthesis-related gene COL4A1. Moreover, the predicted transcription factors (TFs) foxd2/3 and NFκB could be involved in the regulation of HNRNPA2B1. HNRNPA2B1 might be regulating SMCs proliferation and phenotypic transition via rno-miR-330–3p/TGFβR3 and rno-miR-125a-3p/slc39a1. In addition, HNRNPA2B1 was observed to be highly expressed in the lung samples from MCT-PAH rat models and patients with PAH. Conclusion: In summary, the present study identified certain key functional m6A regulators that are involved in pulmonary vascular remodeling. The investigation of m6A patterns might be promising and provide biomarkers for diagnosis and treatment of PAH in the future.
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Affiliation(s)
| | | | | | | | | | - Yingqun Ji
- *Correspondence: Yingqun Ji, ; Qiang Li,
| | - Qiang Li
- *Correspondence: Yingqun Ji, ; Qiang Li,
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31
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Tseng V, Collum SD, Allawzi A, Crotty K, Yeligar S, Trammell A, Ryan Smith M, Kang BY, Sutliff RL, Ingram JL, Jyothula SSSK, Thandavarayan RA, Huang HJ, Nozik ES, Wagner EJ, Michael Hart C, Karmouty-Quintana H. 3'UTR shortening of HAS2 promotes hyaluronan hyper-synthesis and bioenergetic dysfunction in pulmonary hypertension. Matrix Biol 2022; 111:53-75. [PMID: 35671866 PMCID: PMC9676077 DOI: 10.1016/j.matbio.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 01/27/2023]
Abstract
Pulmonary hypertension (PH) comprises a diverse group of disorders that share a common pathway of pulmonary vascular remodeling leading to right ventricular failure. Development of anti-remodeling strategies is an emerging frontier in PH therapeutics that requires a greater understanding of the interactions between vascular wall cells and their extracellular matrices. The ubiquitous matrix glycan, hyaluronan (HA), is markedly elevated in lungs from patients and experimental models with PH. Herein, we identified HA synthase-2 (HAS2) in the pulmonary artery smooth muscle cell (PASMC) layer as a predominant locus of HA dysregulation. HA upregulation involves depletion of NUDT21, a master regulator of alternative polyadenylation, resulting in 3'UTR shortening and hyper-expression of HAS2. The ensuing increase of HAS2 and hyper-synthesis of HA promoted bioenergetic dysfunction of PASMC characterized by impaired mitochondrial oxidative capacity and a glycolytic shift. The resulting HA accumulation stimulated pro-remodeling phenotypes such as cell proliferation, migration, apoptosis-resistance, and stimulated pulmonary artery contractility. Transgenic mice, mimicking HAS2 hyper-synthesis in smooth muscle cells, developed spontaneous PH, whereas targeted deletion of HAS2 prevented experimental PH. Pharmacological blockade of HAS2 restored normal bioenergetics in PASMC, ameliorated cell remodeling phenotypes, and reversed experimental PH in vivo. In summary, our results uncover a novel mechanism of HA hyper-synthesis and downstream effects on pulmonary vascular cell metabolism and remodeling.
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Affiliation(s)
- Victor Tseng
- Respiratory Medicine, Ansible Health Mountain View, CA
| | - Scott D Collum
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston Houston, TX
| | | | - Kathryn Crotty
- Emory University Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine Atlanta, GA
| | - Samantha Yeligar
- Emory University Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine Atlanta, GA
| | - Aaron Trammell
- Emory University Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine Atlanta, GA
| | - M Ryan Smith
- Emory University Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine Atlanta, GA
| | - Bum-Yong Kang
- Emory University Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine Atlanta, GA; Atlanta Veteran Affairs Health Care System Decatur, GA
| | - Roy L Sutliff
- Emory University Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine Atlanta, GA; Atlanta Veteran Affairs Health Care System Decatur, GA
| | | | - Soma S S K Jyothula
- Divisions of Critical Care, Pulmonary & Sleep Medicine, McGovern Medical School, University of Texas Health Science Center at Houston Houston, TX; Debakey Heart & Vascular Center, Houston Methodist Hospital, Houston TX, USA
| | | | - Howard J Huang
- Debakey Heart & Vascular Center, Houston Methodist Hospital, Houston TX, USA
| | - Eva S Nozik
- University of Colorado Anschutz Medical Campus, Department of Pediatrics Aurora, CO
| | - Eric J Wagner
- University of Rochester Medical Center, School of Medicine and Dentistry Rochester, NY
| | - C Michael Hart
- Emory University Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine Atlanta, GA; Atlanta Veteran Affairs Health Care System Decatur, GA.
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston Houston, TX; Divisions of Critical Care, Pulmonary & Sleep Medicine, McGovern Medical School, University of Texas Health Science Center at Houston Houston, TX.
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32
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He YY, Yan Y, Chen JW, Liu S, Hua L, Jiang X, Xu XQ, Lu D, Jing ZC, Yan FX, Han ZY. Plasma metabolomics in the perioperative period of defect repair in patients with pulmonary arterial hypertension associated with congenital heart disease. Acta Pharmacol Sin 2022; 43:1710-1720. [PMID: 34848852 PMCID: PMC9253009 DOI: 10.1038/s41401-021-00804-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 10/22/2021] [Indexed: 11/09/2022] Open
Abstract
The quality of life and survival rates of patients with pulmonary arterial hypertension associated with congenital heart disease (CHD-PAH) have been greatly improved by defect-repair surgery and personalized treatments. However, those who survive surgery may remain at risk of persistent PAH, the prognosis may be considerably worse than those unoperated. Dynamic monitoring of clinical measures during the perioperative period of shunt correction is therefore indispensable and of great value. In this study, we explored the plasma-metabolite profiling in 13 patients with CHD-PAH during the perioperative period of defect repair. Plasma was harvested at four time points: prior to cardiopulmonary bypass (CPB) after anesthesia (Pre), immediately after CPB (T0), 24 h (T24), and 48 h (T48) after defect repair. Untargeted metabolomics strategy based on UPLC Q-TOF MS was used to detect the metabolites. A total of 193 distinguishing metabolites were determined at different time points, enriched in pathways such as oxidation of branched-chain fatty acids. We found that 17 metabolite alterations were significantly correlated with the reduction in mean pulmonary arterial pressure (MPAP) at T48 versus Pre. Gradients in diastolic pulmonary arterial pressure (DPAP), bicarbonate in radial artery (aHCO3), bicarbonate in superior vena cava (svcHCO3), and the partial pressure of dissolved CO2 gas in radial artery (aPCO2) were positively correlated with MPAP gradient. Notably, these clinical-measure gradients were correlated with alterations in shunt-correction-associated metabolites. In total, 12 out of 17 identified metabolites in response to defect repair were increased at both T24 and T48 (all P < 0.05, except propionylcarnitine with P < 0.05 at T24). In contrast, galactinol dihydrate, guanosine monophosphate, and hydroxyphenylacetylglycine tended to decline at T24 and T48 (only galactinol dihydrate with P < 0.05 at T48). In conclusion, 17 metabolites that respond to shunt correction could be used as suitable noninvasive markers, and clinical measures, including DPAP, aHCO3, svcHCO3, and aPCO2, would be of great value in disease monitoring and evaluating future therapeutic interventions.
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Affiliation(s)
- Yang-yang He
- grid.506261.60000 0001 0706 7839State Key Laboratory of Cardiovascular Disease and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China ,grid.256922.80000 0000 9139 560XSchool of Pharmacy, Henan University, Kaifeng, 475004 China
| | - Yi Yan
- grid.5252.00000 0004 1936 973XInstitute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany ,grid.452396.f0000 0004 5937 5237DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Ji-wang Chen
- grid.185648.60000 0001 2175 0319Section of Pulmonary, Critical Care Medicine, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL USA
| | - Sheng Liu
- grid.506261.60000 0001 0706 7839Department of Surgery, FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China
| | - Lu Hua
- grid.506261.60000 0001 0706 7839Department of Internal Medicine, FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China
| | - Xin Jiang
- grid.506261.60000 0001 0706 7839State Key Laboratory of Complex, Severe, and Rare Diseases, and Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Xi-qi Xu
- grid.506261.60000 0001 0706 7839State Key Laboratory of Complex, Severe, and Rare Diseases, and Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Dan Lu
- grid.506261.60000 0001 0706 7839State Key Laboratory of Complex, Severe, and Rare Diseases, and Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Zhi-cheng Jing
- grid.506261.60000 0001 0706 7839State Key Laboratory of Complex, Severe, and Rare Diseases, and Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Fu-xia Yan
- grid.506261.60000 0001 0706 7839Department of Anesthesiology, FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China
| | - Zhi-yan Han
- grid.506261.60000 0001 0706 7839State Key Laboratory of Cardiovascular Disease and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China ,grid.506261.60000 0001 0706 7839Department of Anesthesiology, FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China
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Ding J, Chu C, Mao Z, Yang J, Wang J, Hu L, Chen P, Cao Y, Li Y, Wan H, Wei D, Chen J, Chen F, Yu Y. Metabolomics-based mechanism exploration of pulmonary arterial hypertension pathogenesis: novel lessons from explanted human lungs. Hypertens Res 2022; 45:990-1000. [PMID: 35354935 DOI: 10.1038/s41440-022-00898-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/10/2022] [Accepted: 02/18/2022] [Indexed: 11/09/2022]
Abstract
Pulmonary arterial hypertension has led to global health and social problems, but the pathogenic mechanism has not been fully elucidated. Dysregulated metabolism is closely associated with the pathogenesis of pulmonary arterial hypertension. Here, we investigated metabolic profile shifts to reveal the molecular mechanisms underlying pulmonary hypertension. Explanted lung tissues from 13 idiopathic pulmonary arterial hypertension patients, 5 pulmonary arterial hypertension associated with congenital heart disease patients, and 16 controls were collected for untargeted metabolomics analysis with liquid chromatography coupled with tandem mass spectrometry. The KEGG database and MetaboAnalyst 5.0 were used for pathway analysis. A Cox survival analysis model was applied to evaluate the predictive value of metabolites on prognosis. Protein expression levels in human and rat pulmonary arterial hypertension lungs and hypoxia-exposed human pulmonary artery smooth muscle cells were detected by Western blotting to study the molecular mechanisms. Significant differences in metabolites and metabolic pathways were identified among the pulmonary arterial hypertension subgroups and control tissues. The levels of spermine were positively correlated with the patients' cardiac output, and (2e)-2,5-dichloro-4-oxo-2-hexenedioic acid was positively correlated with the patients' serum creatinine levels. Patients with higher thymine levels had a better prognosis. Moreover, seven differential metabolites were associated with the AKT pathway. AKT pathway inactivation was confirmed in human and rat pulmonary hypertensive lungs and pulmonary artery smooth muscle cells exposed to hypoxia. Our findings provide the first metabolomics evidence for pulmonary arterial hypertension pathogenesis in human lungs and may contribute to the improvement in therapeutic strategies.
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Affiliation(s)
- Jingjing Ding
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chunyan Chu
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhengsheng Mao
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jiawen Yang
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jie Wang
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Li Hu
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Peng Chen
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yue Cao
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yan Li
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hua Wan
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Dong Wei
- Wuxi Lung Transplantation Center, Wuxi People's Hospital Affiliated with Nanjing Medical University, Wuxi, China
| | - Jingyu Chen
- Wuxi Lung Transplantation Center, Wuxi People's Hospital Affiliated with Nanjing Medical University, Wuxi, China.
| | - Feng Chen
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China. .,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, China. .,The Institute of Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Youjia Yu
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China.
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Kitagawa A, Jacob C, Gupte SA. Glucose-6-phosphate dehydrogenase and MEG3 controls hypoxia-induced expression of serum response factor (SRF) and SRF-dependent genes in pulmonary smooth muscle cell. J Smooth Muscle Res 2022; 58:34-49. [PMID: 35491127 PMCID: PMC9057900 DOI: 10.1540/jsmr.58.34] [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] [Indexed: 11/13/2022] Open
Abstract
Although hypoxia induces aberrant gene expression and dedifferentiation of smooth muscle cells (SMCs), mechanisms that alter dedifferentiation gene expression by hypoxia remain unclear. Therefore, we aimed to gain insight into the hypoxia-controlled gene expression in SMCs. We conducted studies using SMCs cultured in 3% oxygen (hypoxia) and the lungs of mice exposed to 10% oxygen (hypoxia). Our results suggest hypoxia upregulated expression of transcription factor CP2-like protein1, krüppel-like factor 4, and E2f transcription factor 1 enriched genes including basonuclin 2 (Bcn2), serum response factor (Srf), polycomb 3 (Cbx8), homeobox D9 (Hoxd9), lysine demethylase 1A (Kdm1a), etc. Additionally, we found that silencing glucose-6-phosphate dehydrogenase (G6PD) expression and inhibiting G6PD activity downregulated Srf transcript and hypomethylation of SMC genes (Myocd, Myh11, and Cnn1) and concomitantly increased their expression in the lungs of hypoxic mice. Furthermore, G6PD inhibition hypomethylated MEG3, a long non-coding RNA, gene and upregulated MEG3 expression in the lungs of hypoxic mice and in hypoxic SMCs. Silencing MEG3 expression in SMC mitigated the hypoxia-induced transcription of SRF. These findings collectively demonstrate that MEG3 and G6PD codependently regulate Srf expression in hypoxic SMCs. Moreover, G6PD inhibition upregulated SRF-MYOCD-driven gene expression, determinant of a differentiated SMC phenotype.
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Affiliation(s)
- Atsushi Kitagawa
- Department of Pharmacology, New York Medical College, BSB 546, 15 Dana Road, Valhalla, NY 10595, USA
| | - Christina Jacob
- Department of Pharmacology, New York Medical College, BSB 546, 15 Dana Road, Valhalla, NY 10595, USA
| | - Sachin A Gupte
- Department of Pharmacology, New York Medical College, BSB 546, 15 Dana Road, Valhalla, NY 10595, USA
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Gu M, Wang Z, Feng F, Yang Y, Sun X, Yang D. Inhibition of PIKfyve Ameliorates the Proliferation and Migration of Vascular Smooth Muscle Cells and Vascular Intima Hyperplasia By Reducing mTORC1 Activity. J Cardiovasc Pharmacol 2022; 79:739-748. [PMID: 35275098 PMCID: PMC9067083 DOI: 10.1097/fjc.0000000000001243] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 02/06/2022] [Indexed: 02/07/2023]
Abstract
ABSTRACT This study was designed to investigate the role and mechanism of PIKfyve in the proliferation and migration of vascular smooth muscle cells (VSMCs) and vascular intima hyperplasia. We first observed increased protein levels of PIKfyve, phospho (p)-S6 Ribosomal Protein (S6)Ser235/236, p-4EBP1Thr37/46 in VSMCs after 24 hours of platelet-derived growth factor (PDGF)-BB treatment. By using cell counting kit-8 assay, Ki-67 immunofluorescence staining and wound healing assay, we found that PIKfyve inhibition ameliorated the enhanced activity of VSMC proliferation and migration induced by PDGF-BB. Silencing PIKfyve also suppressed the phosphorylation of S6 and 4EBP1 (2 major effectors of mammalian target of rapamycin complex 1), glucose consumption, activity of hexokinase, and LDH in PDGF-BB-challenged VSMCs. After rescuing the phosphorylation of S6 and 4EBP1 by silencing Tsc1, the suppressive effects of PIKfyve inhibition on glucose utilization, proliferation, and migration in VSMCs were abolished. The animal model of vascular restenosis was established in C57BL/6J mice by wire injury. We found the expression of PIKfyve was increased in carotid artery at day 28 after injury. Reducing the activity of PIKfyve alleviated vascular neointima hyperplasia after injury. In conclusion, targeting PIKfyve might be a novel effective method to reduce the proliferation and migration of VSMCs and vascular restenosis by affecting mammalian target of rapamycin complex 1-mediated glucose utilization.
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Affiliation(s)
- Min Gu
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Zhen Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Feifei Feng
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Yongjian Yang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Xiongshan Sun
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Dachun Yang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
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Predescu DN, Mokhlesi B, Predescu SA. The Impact of Sex Chromosomes in the Sexual Dimorphism of Pulmonary Arterial Hypertension. THE AMERICAN JOURNAL OF PATHOLOGY 2022; 192:582-594. [PMID: 35114193 PMCID: PMC8978209 DOI: 10.1016/j.ajpath.2022.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/14/2021] [Accepted: 01/11/2022] [Indexed: 02/09/2023]
Abstract
Pulmonary arterial hypertension (PAH) is a sex-biased disease with a poorly understood female prevalence. Emerging research suggests that nonhormonal factors, such as the XX or XY sex chromosome complement and sex bias in gene expression, may also lead to sex-based differences in PAH incidence, penetrance, and progression. Typically, one of females' two X chromosomes is epigenetically silenced to offer a gender-balanced gene expression. Recent data demonstrate that the long noncoding RNA X-inactive specific transcript, essential for X chromosome inactivation and dosage compensation of X-linked gene expression, shows elevated levels in female PAH lung specimens compared with controls. This molecular event leads to incomplete inactivation of the females' second X chromosome, abnormal expression of X-linked gene(s) involved in PAH pathophysiology, and a pulmonary artery endothelial cell (PAEC) proliferative phenotype. Moreover, the pathogenic proliferative p38 mitogen-activated protein kinase/ETS transcription factor ELK1 (Elk1)/cFos signaling is mechanistically linked to the sexually dimorphic proliferative response of PAECs in PAH. Apprehending the complicated relationship between long noncoding RNA X-inactive specific transcript and X-linked genes and how this relationship integrates into a sexually dimorphic proliferation of PAECs and PAH sex paradox remain challenging. We highlight herein new findings related to how the sex chromosome complement and sex-differentiated epigenetic mechanisms to control gene expression are decisive players in the sexual dimorphism of PAH. Pharmacologic interventions in the light of the newly elucidated mechanisms are discussed.
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Affiliation(s)
- Dan N Predescu
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois.
| | - Babak Mokhlesi
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois
| | - Sanda A Predescu
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois
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Wang S, Yan Y, Xu WJ, Gong SG, Zhong XJ, An QY, Zhao YL, Liu JM, Wang L, Yuan P, Jiang R. The Role of Glutamine and Glutaminase in Pulmonary Hypertension. Front Cardiovasc Med 2022; 9:838657. [PMID: 35310969 PMCID: PMC8924297 DOI: 10.3389/fcvm.2022.838657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/14/2022] [Indexed: 01/07/2023] Open
Abstract
Pulmonary hypertension (PH) refers to a clinical and pathophysiological syndrome in which pulmonary vascular resistance and pulmonary arterial pressure are increased due to structural or functional changes in pulmonary vasculature caused by a variety of etiologies and different pathogenic mechanisms. It is followed by the development of right heart failure and even death. In recent years, most studies have found that PH and cancer shared a complex common pathological metabolic disturbance, such as the shift from oxidative phosphorylation to glycolysis. During the shifting process, there is an upregulation of glutamine decomposition driven by glutaminase. However, the relationship between PH and glutamine hydrolysis, especially by glutaminase is yet unclear. This review aims to explore the special linking among glutamine hydrolysis, glutaminase and PH, so as to provide theoretical basis for clinical precision treatment in PH.
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Affiliation(s)
- Shang Wang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Yan
- Institute for Cardiovascular Prevention (IPEK), Ludwig Maximilian University of Munich, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Wei-Jie Xu
- Department of Clinical Laboratory, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Su-Gang Gong
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiu-Jun Zhong
- Department of Respiratory Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qin-Yan An
- Department of Respiratory, Sijing Hospital of Songjiang District, Shanghai, China
| | - Ya-Lin Zhao
- Department of Respiratory and Critical Care Medicine, The First Hospital of Kunming, Kunming, China
| | - Jin-Ming Liu
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lan Wang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ping Yuan
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- Ping Yuan,
| | - Rong Jiang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Rong Jiang,
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G6PD is a critical enabler of hypoxia-induced accumulation of macrophages and platelets in mice lungs and contributor to lung inflammation. Vascul Pharmacol 2022; 144:106976. [DOI: 10.1016/j.vph.2022.106976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/27/2022] [Accepted: 03/03/2022] [Indexed: 02/05/2023]
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Liu S, Yan Y. Animal models of pulmonary hypertension due to left heart disease. Animal Model Exp Med 2022; 5:197-206. [PMID: 35234367 PMCID: PMC9240728 DOI: 10.1002/ame2.12214] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/13/2022] [Accepted: 01/23/2022] [Indexed: 01/02/2023] Open
Abstract
Pulmonary hypertension due to left heart disease (PH‐LHD) is regarded as the most prevalent form of pulmonary hypertension (PH). Indeed, PH is an independent risk factor and predicts adverse prognosis for patients with left heart disease (LHD). Clinically, there are no drugs or treatments that directly address PH‐LHD, and treatment of LHD alone will not also ameliorate PH. To target the underlying physiopathological alterations of PH‐LHD and to develop novel therapeutic approaches for this population, animal models that simulate the pathophysiology of PH‐LHD are required. There are several available models for PH‐LHD that have been successfully employed in rodents or large animals by artificially provoking an elevated pressure load on the left heart, which by transduction elicits an escalated pressure in pulmonary artery. In addition, metabolic derangement combined with aortic banding or vascular endothelial growth factor receptor antagonist is also currently applied to reproduce the phenotype of PH‐LHD. As of today, none of the animal models exactly recapitulates the condition of patients with PH‐LHD. Nevertheless, the selection of an appropriate animal model is essential in basic and translational studies of PH‐LHD. Therefore, this review will summarize the characteristics of each PH‐LHD animal model and discuss the advantages and limitations of the different models.
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Affiliation(s)
- Shao‐Fei Liu
- Charité—Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
- DZHK (German Centre for Cardiovascular Research) Partner Site Berlin Berlin Germany
| | - Yi Yan
- Institute for Cardiovascular Prevention (IPEK) Ludwig‐Maximilians‐University Munich Munich Germany
- DZHK (German Centre for Cardiovascular Research) Partner Site Munich Heart Alliance Munich Germany
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Inhibition of CtBP-Regulated Proinflammatory Gene Transcription Attenuates Psoriatic Skin Inflammation. J Invest Dermatol 2022; 142:390-401. [PMID: 34293351 PMCID: PMC8770725 DOI: 10.1016/j.jid.2021.06.029] [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: 02/25/2020] [Revised: 05/25/2021] [Accepted: 06/03/2021] [Indexed: 02/03/2023]
Abstract
Psoriasis is a chronic immune-mediated disease characterized by excessive proliferation of epidermal keratinocytes and increased immune cell infiltration to the skin. Although it is well-known that psoriasis pathogenesis is driven by aberrant production of proinflammatory cytokines, the mechanisms underlying the imbalance between proinflammatory and anti-inflammatory cytokine expression are incompletely understood. In this study, we report that the transcriptional coregulators CtBP1 and 2 can transactivate a common set of proinflammatory genes both in the skin of imiquimod-induced mouse psoriasis model and in human keratinocytes and macrophages stimulated by imiquimod. We find that mice overexpressing CtBP1 in epidermal keratinocytes display severe skin inflammation phenotypes with increased expression of T helper type 1 and T helper type 17 cytokines. We also find that the expression of CtBPs and CtBP-target genes is elevated both in human psoriatic lesions and in the mouse imiquimod psoriasis model. Moreover, we were able to show that topical treatment with a peptidic inhibitor of CtBP effectively suppresses the CtBP-regulated proinflammatory gene expression and thus attenuates psoriatic inflammation in the imiquimod mouse model. Together, our findings suggest to our knowledge previously unreported strategies for therapeutic modulation of the immune response in inflammatory skin diseases.
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Torimoto K, Okuno K, Kuroda R, Shanas N, Cicalese SM, Eguchi K, Elliott KJ, Kawai T, Corbett CB, Peluzzo AM, St. Paul AK, Autieri MV, Scalia R, Rizzo V, Hashimoto T, Eguchi S. Glucose consumption of vascular cell types in culture: toward optimization of experimental conditions. Am J Physiol Cell Physiol 2022; 322:C73-C85. [PMID: 34817269 PMCID: PMC8791793 DOI: 10.1152/ajpcell.00257.2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this study, we have looked for an optimum media glucose concentration and compared glucose consumption in three vascular cell types, endothelial cells (ECs), vascular smooth muscle cells (VSMCs), and adventitial fibroblasts (AFs) with or without angiotensin II (AngII) stimulation. In a subconfluent 6-well experiment in 1 mL DMEM with a standard low (100 mg/dL), a standard high (450 mg/dL), or a mixed middle (275 mg/dL) glucose concentration, steady and significant glucose consumption was observed in all cell types. After 48-h incubation, media that contained low glucose was reduced to almost 0 mg/dL, media that contained high glucose remained significantly higher at ∼275 mg/dL, and media that contained middle glucose remained closer to physiological range. AngII treatment enhanced glucose consumption in AFs and VSMCs but not in ECs. Enhanced extracellular acidification rate by AngII was also observed in AFs. In AFs, AngII induction of target proteins at 48 h varied depending on the glucose concentration used. In low glucose media, induction of glucose regulatory protein 78 or hexokinase II was highest, whereas induction of VCAM-1 was lowest. Utilization of specific inhibitors further suggests essential roles of angiotensin II type-1 receptor and glycolysis in AngII-induced fibroblast activation. Overall, this study demonstrates a high risk of hypo- or hyperglycemic conditions when standard low or high glucose media is used with vascular cells. Moreover, these conditions may significantly alter experimental outcomes. Media glucose concentration should be monitored during any culture experiments and utilization of middle glucose media is recommended for all vascular cell types.
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Affiliation(s)
- Keiichi Torimoto
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Keisuke Okuno
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Ryohei Kuroda
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - No’Ad Shanas
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Stephanie M. Cicalese
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Kunie Eguchi
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Katherine J. Elliott
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Tatsuo Kawai
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Cali B. Corbett
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Amanda M. Peluzzo
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Amanda K. St. Paul
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Michael V. Autieri
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Rosario Scalia
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Victor Rizzo
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Tomoki Hashimoto
- 2Barrow Aneurysm and AVM Research Center, Departments of Neurosurgery and Neurobiology, Barrow Neurological Institute, Phoenix, Arizona
| | - Satoru Eguchi
- 1Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
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Abstract
Pulmonary arterial hypertension is characterized by obliteration and obstruction of the pulmonary arterioles that in turn results in high right ventricular afterload and right heart failure. The pathobiology of pulmonary arterial hypertension is complex, with contributions from multiple pathophysiologic processes that are regulated by a variety of molecular mechanisms. This nature likely explains the limited efficacy of our current therapies, which only target a small portion of the pathobiological mechanisms that underlie advanced disease. Here we review the pathobiology of pulmonary arterial hypertension, focusing on the systemic, cellular, and molecular mechanisms that underlie the disease.
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Affiliation(s)
- Sudarshan Rajagopal
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Room 128A Hanes House, 330 Trent Drive, Durham, NC 27710, USA.
| | - Yen-Rei A Yu
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, 12605 E. 16th Avenue, Aurora, CO 80045, USA
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43
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He YY, Xie XM, Zhang HD, Ye J, Gencer S, van der Vorst EPC, Döring Y, Weber C, Pang XB, Jing ZC, Yan Y, Han ZY. Identification of Hypoxia Induced Metabolism Associated Genes in Pulmonary Hypertension. Front Pharmacol 2021; 12:753727. [PMID: 34803695 PMCID: PMC8602807 DOI: 10.3389/fphar.2021.753727] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/11/2021] [Indexed: 01/10/2023] Open
Abstract
Objective: Pulmonary hypertension (PH) associated with hypoxia and lung disease (Group 3) is the second most common form of PH and associated with increased morbidity and mortality. This study was aimed to identify hypoxia induced metabolism associated genes (MAGs) for better understanding of hypoxic PH. Methods: Rat pulmonary arterial smooth muscle cells (PASMCs) were isolated and cultured in normoxic or hypoxic condition for 24 h. Cells were harvested for liquid chromatography-mass spectrometry analysis. Functional annotation of distinguishing metabolites was performed using Metaboanalyst. Top 10 enriched metabolite sets were selected for the identification of metabolism associated genes (MAGs) with a relevance score >8 in Genecards. Transcriptomic data from lungs of hypoxic PH in mice/rats or of PH patients were accessed from Gene Expression Omnibus (GEO) database or open-access online platform. Connectivity Map analysis was performed to identify potential compounds to reverse the metabolism associated gene profile under hypoxia stress. The construction and module analysis of the protein-protein interaction (PPI) network was performed. Hub genes were then identified and used to generate LASSO model to determine its accuracy to predict occurrence of PH. Results: A total of 36 altered metabolites and 1,259 unique MAGs were identified in rat PASMCs under hypoxia. 38 differentially expressed MAGs in mouse lungs of hypoxic PH were revealed, with enrichment in multi-pathways including regulation of glucose metabolic process, which might be reversed by drugs such as blebbistatin. 5 differentially expressed MAGs were displayed in SMCs of Sugen 5416/hypoxia induced PH rats at the single cell resolution. Furthermore, 6 hub genes (Cat, Ephx1, Gpx3, Gstm4, Gstm5, and Gsto1) out of 42 unique hypoxia induced MAGs were identified. Higher Cat, Ephx1 and lower Gsto1 were displayed in mouse lungs under hypoxia (all p < 0.05), in consistent with the alteration in lungs of PH patients. The hub gene-based LASSO model can predict the occurrence of PH (AUC = 0.90). Conclusion: Our findings revealed six hypoxia-induced metabolism associated hub genes, and shed some light on the molecular mechanism and therapeutic targets in hypoxic PH.
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Affiliation(s)
- Yang-Yang He
- School of Pharmacy, Henan University, Kaifeng, China
| | - Xin-Mei Xie
- School of Pharmacy, Henan University, Kaifeng, China
| | - Hong-Da Zhang
- State Key Laboratory of Cardiovascular Disease and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jue Ye
- State Key Laboratory of Cardiovascular Disease and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Selin Gencer
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany
| | - Emiel P C van der Vorst
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.,Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, Aachen, Germany.,Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany.,Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, Netherlands
| | - Yvonne Döring
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.,Department of Angiology, Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Christian Weber
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.,Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, Netherlands.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Xiao-Bin Pang
- School of Pharmacy, Henan University, Kaifeng, China
| | - Zhi-Cheng Jing
- State Key Laboratory of Complex, Severe, and Rare Diseases, Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yi Yan
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Zhi-Yan Han
- State Key Laboratory of Cardiovascular Disease and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Buehler PW, Swindle D, Pak DI, Fini MA, Hassell K, Nuss R, Wilkerson RB, D’Alessandro A, Irwin DC. Murine models of sickle cell disease and beta-thalassemia demonstrate pulmonary hypertension with distinctive features. Pulm Circ 2021; 11:20458940211055996. [PMID: 34777785 PMCID: PMC8579334 DOI: 10.1177/20458940211055996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/21/2021] [Indexed: 01/26/2023] Open
Abstract
Sickle cell anemia and β-thalassemia intermedia are very different genetically determined hemoglobinopathies predisposing to pulmonary hypertension. The etiologies responsible for the associated development of pulmonary hypertension in both diseases are multi-factorial with extensive mechanistic contributors described. Both sickle cell anemia and β-thalassemia intermedia present with intra and extravascular hemolysis. And because sickle cell anemia and β-thalassemia intermedia share features of extravascular hemolysis, macrophage iron excess and anemia we sought to characterize the common features of the pulmonary hypertension phenotype, cardiac mechanics, and function as well as lung and right ventricular metabolism. Within the concept of iron, we have defined a unique pulmonary vascular iron accumulation in lungs of sickle cell anemia pulmonary hypertension patients at autopsy. This observation is unlike findings in idiopathic or other forms of pulmonary arterial hypertension. In this study, we hypothesized that a common pathophysiology would characterize the pulmonary hypertension phenotype in sickle cell anemia and β-thalassemia intermedia murine models. However, unlike sickle cell anemia, β-thalassemia is also a disease of dyserythropoiesis, with increased iron absorption and cellular iron extrusion. This process is mediated by high erythroferrone and low hepcidin levels as well as dysregulated iron transport due transferrin saturation, so there may be differences as well. Herein we describe common and divergent features of pulmonary hypertension in aged Berk-ss (sickle cell anemia) and Hbbth/3+ (intermediate β-thalassemia) mice and suggest translational utility as proof-of-concept models to study pulmonary hypertension therapeutics specific to genetic anemias.
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Affiliation(s)
- Paul W. Buehler
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA
- The Center for Blood Oxygen Transport, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
- Paul W. Buehler, Department of Pathology University of Maryland School of Medicine, HSF III, 8th Floor, Room 8180, Baltimore, MD 21201, USA. David C. Irwin, Department of Cardiology, University of Colorado Anschutz, Medical Campus Research Building 2, B133, Room 8121 Aurora, Colorado 80045, USA.
| | - Delaney Swindle
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
| | - David I. Pak
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
| | - Mehdi A. Fini
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
| | - Kathryn Hassell
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - Rachelle Nuss
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - Rebecca B. Wilkerson
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - Angelo D’Alessandro
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - David C. Irwin
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
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Kumar S, Frid MG, Zhang H, Li M, Riddle S, Brown RD, Yadav SC, Roy MK, Dzieciatkowska ME, D'Alessandro A, Hansen KC, Stenmark KR. Complement-containing small extracellular vesicles from adventitial fibroblasts induce proinflammatory and metabolic reprogramming in macrophages. JCI Insight 2021; 6:e148382. [PMID: 34499621 PMCID: PMC8663554 DOI: 10.1172/jci.insight.148382] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 09/08/2021] [Indexed: 12/15/2022] Open
Abstract
Pulmonary hypertension (PH) is a severe cardiopulmonary disease characterized by complement-dependent, fibroblast-induced perivascular accumulation and proinflammatory activation of macrophages. We hypothesized that, in PH, nanoscale-sized small extracellular vesicles (sEVs), released by perivascular/adventitial fibroblasts, are critical mediators of complement-dependent proinflammatory activation of macrophages. Pulmonary adventitial fibroblasts were isolated from calves with severe PH (PH-Fibs) and age-matched controls (CO-Fibs). PH-Fibs exhibited increased secretion of sEVs, compared with CO-Fibs, and sEV biological activity was tested on mouse and bovine bone marrow-derived macrophages (BMDMs) and showed similar responses. Compared with sEVs derived from CO-Fibs, sEVs derived from PH-Fibs (PH-Fib-sEVs) induced augmented expression of proinflammatory cytokines/chemokines and metabolic genes in BMDMs. Pharmacological blockade of exosome release from PH-Fibs resulted in significant attenuation of proinflammatory activation of BMDMs. "Bottom-up" proteomic analyses revealed significant enrichment of complement and coagulation cascades in PH-Fib-sEVs, including augmented expression of the complement component C3. We therefore examined whether the PH-Fib-sEV-mediated proinflammatory activation of BMDMs was complement C3 dependent. Treatment of PH-Fibs with siC3-RNA significantly attenuated the capacity of PH-Fib-sEVs for proinflammatory activation of BMDMs. PH-Fib-sEVs mediated proglycolytic alterations and complement-dependent activation of macrophages toward a proinflammatory phenotype, as confirmed by metabolomic studies. Thus, fibroblast-released sEVs served as critical mediators of complement-induced perivascular/microenvironmental inflammation in PH.
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Affiliation(s)
- Sushil Kumar
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Maria G Frid
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Hui Zhang
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Min Li
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Suzette Riddle
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - R Dale Brown
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | | | - Micaela K Roy
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Monika E Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kirk C Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kurt R Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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Fibroblast Memory in Development, Homeostasis and Disease. Cells 2021; 10:cells10112840. [PMID: 34831065 PMCID: PMC8616330 DOI: 10.3390/cells10112840] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 02/06/2023] Open
Abstract
Fibroblasts are the major cell population in the connective tissue of most organs, where they are essential for their structural integrity. They are best known for their role in remodelling the extracellular matrix, however more recently they have been recognised as a functionally highly diverse cell population that constantly responds and adapts to their environment. Biological memory is the process of a sustained altered cellular state and functions in response to a transient or persistent environmental stimulus. While it is well established that fibroblasts retain a memory of their anatomical location, how other environmental stimuli influence fibroblast behaviour and function is less clear. The ability of fibroblasts to respond and memorise different environmental stimuli is essential for tissue development and homeostasis and may become dysregulated in chronic disease conditions such as fibrosis and cancer. Here we summarise the four emerging key areas of fibroblast adaptation: positional, mechanical, inflammatory, and metabolic memory and highlight the underlying mechanisms and their implications in tissue homeostasis and disease.
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47
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Luo L, Chen Q, Yang L, Zhang Z, Xu J, Gou D. MSCs Therapy Reverse the Gut Microbiota in Hypoxia-Induced Pulmonary Hypertension Mice. Front Physiol 2021; 12:712139. [PMID: 34531759 PMCID: PMC8438532 DOI: 10.3389/fphys.2021.712139] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/09/2021] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stem cell (MSC) therapy is a promising therapeutic approach based on its strong effect on pulmonary hypertension (PH) in rats. However, the detailed mechanism of MSC therapy remains unknown. Alterations in the gut microbiota were found in both type 1 pulmonary arterial hypertension patients and hypoxia/SU5416- or monocrotaline (MCT)-induced PH rats. However, whether the therapeutic mechanism of MSCs is associated with the gut microbiota is poorly understood. Here, we found that gut microbiota homeostasis was disrupted in hypoxia-induced PH mice due to the increased Firmicutes-to-Bacteroidetes (F/B) ratio; enhanced abundances of harmful Marinifilaceae, Helicobacteraceae, and Lactobacillaceae; and decreased abundances of beneficial Bacteroidaceae, Prevotellaceae, Tannerellaceae, and Lachnospiraceae. Unexpectedly, reverses of the increase in disease-associated microbiota and decrease in anti-inflammatory and immunomodulatory functional microbiota were observed in the MSC-treated group. We also identified harmful Erysipelotrichaceae, Alphaproteobacteria, Christensenella timonensis, Coriobacteriales, and Rhodospirillales that may serve as gut microbiota biomarkers of hypoxia-induced PH mice. Micrococcaales, Nesterenkonia, Anaerotruncus, and Tyzzerella may serve as gut microbiota biomarkers of MSC-treated mice. In summary, MSC treatment suppresses hypoxia-induced pulmonary hypertension in mice, and alterated gut microbiota may play a role in the development and progression of PH. The mechanism of MSC therapy is associated with various metabolic pathways of the gut microbiota in hypoxia model PH mice.
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Affiliation(s)
- Lingjie Luo
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Disease, Vascular Disease Research Center, Carson International Cancer Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China.,School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Qinhua Chen
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Disease, Vascular Disease Research Center, Carson International Cancer Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Lei Yang
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Disease, Vascular Disease Research Center, Carson International Cancer Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Zhenxia Zhang
- School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Jihong Xu
- Department of Anesthesiology, Shenzhen University General Hospital, Shenzhen University, Shenzhen, China
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Guangdong Provincial Key Laboratory of Regional Immunity and Disease, Vascular Disease Research Center, Carson International Cancer Center, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
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48
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Wang W, Jiang Z, Zhang D, Fu L, Wan R, Hong K. Comparative Transcriptional Analysis of Pulmonary Arterial Hypertension Associated With Three Different Diseases. Front Cell Dev Biol 2021; 9:672159. [PMID: 34336829 PMCID: PMC8319719 DOI: 10.3389/fcell.2021.672159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/17/2021] [Indexed: 01/02/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a severe cardiovascular disorder with high mortality. Multiple clinical diseases can induce PAH, but the underlying molecular mechanisms shared in PAHs associated with different diseases remain unclear. The aim of this study is to explore the key candidate genes and pathways in PAH associated with congenital heart disease (CHD-PAH), PAH associated with connective tissue disease (CTD-PAH), and idiopathic PAH (IPAH). We performed differential expression analysis based on a public microarray dataset GSE113439 and identified 1,442 differentially expressed genes, of which 80.3% were upregulated. Subsequently, both pathway enrichment analysis and protein–protein interaction network analysis revealed that the “Cell cycle” and “DNA damage” processes were significantly enriched in PAH. The expression of seven upregulated candidate genes (EIF2AK2, TOPBP1, CDC5L, DHX15, and CUL1–3) and three downregulated candidate genes (DLL4, EGFL7, and ACE) were validated by qRT-PCR. Furthermore, cell cycle-related genes Cul1 and Cul2 were identified in pulmonary arterial endothelial cells (PAECs) in vitro. The result revealed an increased expression of Cul2 in PAECs after hypoxic treatment. Silencing Cul2 could inhibit overproliferation and migration of PAECs in hypoxia. Taken together, according to bioinformatic analyses, our work revealed that “Cell cycle” and “DNA damage” process-related genes and pathways were significantly dysregulated expressed in PAHs associated with three different diseases. This commonality in molecular discovery might broaden the genetic perspective and understanding of PAH. Besides, silencing Cul2 showed a protective effect in PAECs in hypoxia. The results may provide new treatment targets in multiple diseases induced by PAH.
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Affiliation(s)
- Wei Wang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhenhong Jiang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dandan Zhang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Linghua Fu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Rong Wan
- Jiangxi Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Kui Hong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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49
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Thomas T, Cendali F, Fu X, Gamboni F, Morrison EJ, Beirne J, Nemkov T, Antonelou MH, Kriebardis A, Welsby I, Hay A, Dziewulska KH, Busch MP, Kleinman S, Buehler PW, Spitalnik SL, Zimring JC, D'Alessandro A. Fatty acid desaturase activity in mature red blood cells and implications for blood storage quality. Transfusion 2021; 61:1867-1883. [PMID: 33904180 DOI: 10.1111/trf.16402] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/24/2021] [Accepted: 03/30/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Increases in the red blood cell (RBC) degree of fatty acid desaturation are reported in response to exercise, aging, or diseases associated with systemic oxidant stress. However, no studies have focused on the presence and activity of fatty acid desaturases (FADS) in the mature RBC. STUDY DESIGN AND METHODS Steady state metabolomics and isotope-labeled tracing experiments, immunofluorescence approaches, and pharmacological interventions were used to determine the degree of fatty acid unsaturation, FADS activity as a function of storage, oxidant stress, and G6PD deficiency in human and mouse RBCs. RESULTS In 250 blood units from the REDS III RBC Omics recalled donor population, we report a storage-dependent accumulation of free mono-, poly-(PUFAs), and highly unsaturated fatty acids (HUFAs), which occur at a faster rate than saturated fatty acid accumulation. Through a combination of immunofluorescence, pharmacological inhibition, tracing experiments with stable isotope-labeled fatty acids, and oxidant challenge with hydrogen peroxide, we demonstrate the presence and redox-sensitive activity of FADS2, FADS1, and FADS5 in the mature RBC. Increases in PUFAs and HUFAs in human and mouse RBCs correlate negatively with storage hemolysis and positively with posttransfusion recovery. Inhibition of these enzymes decreases accumulation of free PUFAs and HUFAs in stored RBCs, concomitant to increases in pyruvate/lactate ratios. Alterations of this ratio in G6PD deficient patients or units supplemented with pyruvate-rich rejuvenation solutions corresponded to decreased PUFA and HUFA accumulation. CONCLUSION Fatty acid desaturases are present and active in mature RBCs. Their activity is sensitive to oxidant stress, storage duration, and alterations of the pyruvate/lactate ratio.
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Affiliation(s)
| | - Francesca Cendali
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Xiaoyun Fu
- BloodWorks Northwest, Seattle, Washington, USA
| | - Fabia Gamboni
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Evan J Morrison
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jonathan Beirne
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Travis Nemkov
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Marianna H Antonelou
- Department of Biology, School of Science, National and Kapodistrian University of Athens (NKUA), Athens, Greece
| | | | - Ian Welsby
- Duke University, Durham, North Carolina, USA
| | - Ariel Hay
- Department of Pathology, University of Virginia, Charloteseville, Virginia, USA
| | | | | | | | | | | | - James C Zimring
- Department of Pathology, University of Virginia, Charloteseville, Virginia, USA
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50
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Butty AM, Chud TCS, Cardoso DF, Lopes LSF, Miglior F, Schenkel FS, Cánovas A, Häfliger IM, Drögemüller C, Stothard P, Malchiodi F, Baes CF. Genome-wide association study between copy number variants and hoof health traits in Holstein dairy cattle. J Dairy Sci 2021; 104:8050-8061. [PMID: 33896633 DOI: 10.3168/jds.2020-19879] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 01/31/2021] [Indexed: 01/06/2023]
Abstract
Genome-wide association studies based on SNP have been completed for multiple traits in dairy cattle; however, copy number variants (CNV) could add genomic information that has yet to be harnessed. The objectives of this study were to identify CNV in genotyped Holstein animals and assess their association with hoof health traits using deregressed estimated breeding values as pseudophenotypes. A total of 23,256 CNV comprising 1,645 genomic regions were identified in 5,845 animals. Fourteen genomic regions harboring structural variations, including 9 deletions and 5 duplications, were associated with at least 1 of the studied hoof health traits. This group of traits included digital dermatitis, interdigital dermatitis, heel horn erosion, sole ulcer, white line lesion, sole hemorrhage, and interdigital hyperplasia; no regions were associated with toe ulcer. Twenty candidate genes overlapped with the regions associated with these traits including SCART1, NRXN2, KIF26A, GPHN, and OR7A17. In this study, an effect on infectious hoof lesions could be attributed to the PRAME (Preferentially Expressed Antigen in Melanoma) gene. Almost all genes detected in association with noninfectious hoof lesions could be linked to known metabolic disorders. The knowledge obtained considering information of associated CNV to the traits of interest in this study could improve the accuracy of estimated breeding values. This may further increase the genetic gain for these traits in the Canadian Holstein population, thus reducing the involuntary animal losses due to lameness.
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Affiliation(s)
- Adrien M Butty
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Tatiane C S Chud
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Diercles F Cardoso
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Lucas S F Lopes
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Filippo Miglior
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Flavio S Schenkel
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Angela Cánovas
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Irene M Häfliger
- Vetsuisse Faculty, Institute of Genetics, University of Bern, Bern 3012, Switzerland
| | - Cord Drögemüller
- Vetsuisse Faculty, Institute of Genetics, University of Bern, Bern 3012, Switzerland
| | - Paul Stothard
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton T6G 2R3, Canada
| | - Francesca Malchiodi
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada; The Semex Alliance, Guelph, Ontario N1H 6J2, Canada
| | - Christine F Baes
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario N1G 2W1, Canada; Vetsuisse Faculty, Institute of Genetics, University of Bern, Bern 3012, Switzerland.
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