1
|
Guo Z, Zhang W, Gao H, Li Y, Li X, Yang X, Fan L. High expression levels of haem oxygenase-1 promote ferroptosis in macrophage-derived foam cells and exacerbate plaque instability. Redox Biol 2024; 76:103345. [PMID: 39255694 DOI: 10.1016/j.redox.2024.103345] [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: 08/08/2024] [Revised: 08/25/2024] [Accepted: 09/04/2024] [Indexed: 09/12/2024] Open
Abstract
Plaque rupture with consequent thrombosis is the leading cause of acute cardiovascular events, during which macrophage death is a hallmark. Ferroptosis is a pivotal intermediate link between early and advanced atherosclerosis. Existing evidence indicates the involvement of macrophage ferroptosis in plaque vulnerability; however, the exact mechanism remains elusive. The aim of this study was to explore key ferroptosis-related genes (FRGs) involved in plaque progression and the underlying molecular mechanisms involved. The expression landscape of FRGs was obtained from atherosclerosis-related GEO datasets. Molecular mechanism studies of ferroptosis were performed using bone marrow-derived macrophages (BMDMs) and macrophage-derived foam cells (MDFCs). Bioinformatics analysis and immunohistochemistry revealed that macrophage haem oxygenase-1 (HMOX1) is the key FRG involved in plaque destabilization. Hypoxic conditions induced a significant increase in Hmox1 expression in MDFCs but not in macrophages. In addition, the beneficial or deleterious effects of Hmox1 were dependent on the degree of Hmox1 induction. Hmox1 overexpression drove inflammatory responses and ferroptotic oxidative stress in MDFCs and aggravated the plaque burden in atherosclerotic model mice. Further mechanistic investigations demonstrated that hypoxia-mediated degradation of egl-9 family hypoxia-inducible factor 3 (Egln3) stabilized Hif1a, which subsequently promoted Hmox1 transcription. Our findings suggest that high Hmox1 expression under hypoxia is deleterious to MDFC viability and plaque stability, providing a reference for the management of acute cardiovascular events.
Collapse
Affiliation(s)
- Zhenyu Guo
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Wan Zhang
- Department of Vascular Surgery, Huadong Hospital, Fudan University, Shanghai, 200040, China
| | - Hongxia Gao
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, 201700, China
| | - Yang Li
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Xu Li
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, 201700, China
| | - Xiaohu Yang
- Department of Interventional & Vascular Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China.
| | - Longhua Fan
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, 201700, China.
| |
Collapse
|
2
|
Diz-Küçükkaya R, İyigün T, Albayrak Ö, Eker C, Günel T. JAK2V617F Mutation in Endothelial Cells of Patients with Atherosclerotic Carotid Disease. Turk J Haematol 2024; 41:167-174. [PMID: 38801025 DOI: 10.4274/tjh.galenos.2024.2024.0161] [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] [Indexed: 05/29/2024] Open
Abstract
Objective It has been shown that clonal mutations occur in hematopoietic stem cells with advancing age and increase the risk of death due to atherosclerotic vascular diseases, similarly to myeloproliferative neoplasms. Endothelial cells (ECs) and hematopoietic stem cells develop from common stem cells called hemangioblasts in the early embryonic period. However, the presence of hemangioblasts in the postnatal period is controversial. In this study, JAK2 gene variants were examined in patients with atherosclerotic carotid disease and without any hematological malignancies. Materials and Methods Ten consecutive patients (8 men and 2 women) with symptomatic atherosclerotic carotid stenosis were included in this study. ECs (CD31+CD45-) were separated from tissue samples taken by carotid endarterectomy. JAK2 variants were examined in ECs, peripheral blood mononuclear cells, and oral epithelial cells of the patients with next-generation sequencing. Results The median age of the patients was 74 (range: 58-80) years and the median body mass index value was 24.44 (range: 18.42-30.85) kg/m2. Smoking history was present in 50%, hypertension in 80%, diabetes in 70%, and ischemic heart disease in 70% of the cases. The JAK2V617F mutation was detected in the peripheral blood mononuclear cells of 3 of the 10 patients, and 2 patients also had the JAK2V617F mutation in their ECs. The JAK2V617F mutation was not found in the oral epithelial cells of any of the patients. Conclusion In this study, for the first time in the literature, we showed that the JAK2V617F mutation was found somatically in both peripheral blood cells and ECs in patients with atherosclerosis. This finding may support that ECs and hematopoietic cells originate from a common clone or that somatic mutations can be transmitted to ECs by other mechanisms. Examining the molecular and functional changes caused by the JAK2V617F mutation in ECs may help open a new avenue for treating atherosclerosis.
Collapse
Affiliation(s)
- Reyhan Diz-Küçükkaya
- İstanbul University, Institute of Graduate Studies in Science, Department of Molecular Biology and Genetics, İstanbul, Türkiye
| | - Taner İyigün
- Turkish Ministry of Health, Mehmet Akif Ersoy Chest and Cardiovascular Surgery Education and Research Hospital, Clinic of Cardiovascular Surgery, İstanbul, Türkiye
| | - Özgür Albayrak
- Koç University Hospital Research Center for Translational Medicine, Flow Cytometry Core Facility, İstanbul, Türkiye
| | - Candan Eker
- İstanbul Bilgi University Faculty of Engineering and Natural Sciences, Department of Genetics and Bioengineering, İstanbul, Türkiye
| | - Tuba Günel
- İstanbul University, Institute of Graduate Studies in Science, Department of Molecular Biology and Genetics, İstanbul, Türkiye
| |
Collapse
|
3
|
Wu X, Pan X, Zhou Y, Pan J, Kang J, Yu JJJ, Cao Y, Quan C, Gong L, Li Y. Identification of key genes for atherosclerosis in different arterial beds. Sci Rep 2024; 14:6543. [PMID: 38503760 PMCID: PMC10951242 DOI: 10.1038/s41598-024-55575-8] [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: 01/16/2024] [Accepted: 02/25/2024] [Indexed: 03/21/2024] Open
Abstract
Atherosclerosis (AS) is the pathologic basis of various cardiovascular and cerebrovascular events, with a high degree of heterogeneity among different arterial beds. However, mechanistic differences between arterial beds remain unexplored. The aim of this study was to explore key genes and potential mechanistic differences between AS in different arterial beds through bioinformatics analysis. Carotid atherosclerosis (CAS), femoral atherosclerosis (FAS), infrapopliteal atherosclerosis (IPAS), abdominal aortic atherosclerosis (AAS), and AS-specific differentially expressed genes (DEGs) were screened from the GSE100927 and GSE57691 datasets. Immune infiltration analysis was used to identify AS immune cell infiltration differences. Unsupervised cluster analysis of AS samples from different regions based on macrophage polarization gene expression profiles. Weighted gene co-expression network analysis (WGCNA) was performed to identify the most relevant module genes with AS. Hub genes were then screened by LASSO regression, SVM-REF, and single-gene differential analysis, and a nomogram was constructed to predict the risk of AS development. The results showed that differential expression analysis identified 5, 4, 121, and 62 CAS, FAS, IPAS, AAS-specific DEGs, and 42 AS-common DEGs, respectively. Immune infiltration analysis demonstrated that the degree of macrophage and mast cell enrichment differed significantly in different regions of AS. The CAS, FAS, IPAS, and AAS could be distinguished into two different biologically functional and stable molecular clusters based on macrophage polarization gene expression profiles, especially for cardiomyopathy and glycolipid metabolic processes. Hub genes for 6 AS (ADAP2, CSF3R, FABP5, ITGAX, MYOC, and SPP1), 4 IPAS (CLECL1, DIO2, F2RL2, and GUCY1A2), and 3 AAS (RPL21, RPL26, and RPL10A) were obtained based on module gene, gender stratification, machine learning algorithms, and single-gene difference analysis, respectively, and these genes were effective in differentiating between different regions of AS. This study demonstrates that there are similarities and heterogeneities in the pathogenesis of AS between different arterial beds.
Collapse
Affiliation(s)
- Xize Wu
- Nantong Hospital of Traditional Chinese Medicine, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, No. 41 Jianshe Road, Chongchuan District, Nantong, 226000, Jiangsu, China
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Xue Pan
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
- Dazhou Vocational College of Chinese Medicine, Dazhou, 635000, Sichuan, China
| | - Yi Zhou
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Jiaxiang Pan
- The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, No. 33, Beiling Street, Huanggu District, Shenyang, 110032, Liaoning, China
| | - Jian Kang
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - J J Jiajia Yu
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Yingyue Cao
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Chao Quan
- Nantong Hospital of Traditional Chinese Medicine, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, No. 41 Jianshe Road, Chongchuan District, Nantong, 226000, Jiangsu, China.
| | - Lihong Gong
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China.
- The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, No. 33, Beiling Street, Huanggu District, Shenyang, 110032, Liaoning, China.
- Liaoning Provincial Key Laboratory of TCM Geriatric Cardio-Cerebrovascular Diseases, Shenyang, 110847, Liaoning, China.
| | - Yue Li
- The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, No. 33, Beiling Street, Huanggu District, Shenyang, 110032, Liaoning, China.
- Liaoning Provincial Key Laboratory of TCM Geriatric Cardio-Cerebrovascular Diseases, Shenyang, 110847, Liaoning, China.
| |
Collapse
|
4
|
Kounatidis D, Vallianou NG, Poulaki A, Evangelopoulos A, Panagopoulos F, Stratigou T, Geladari E, Karampela I, Dalamaga M. ApoB100 and Atherosclerosis: What's New in the 21st Century? Metabolites 2024; 14:123. [PMID: 38393015 PMCID: PMC10890411 DOI: 10.3390/metabo14020123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
ApoB is the main protein of triglyceride-rich lipoproteins and is further divided into ApoB48 in the intestine and ApoB100 in the liver. Very low-density lipoprotein (VLDL) is produced by the liver, contains ApoB100, and is metabolized into its remnants, intermediate-density lipoprotein (IDL) and low-density lipoprotein (LDL). ApoB100 has been suggested to play a crucial role in the formation of the atherogenic plaque. Apart from being a biomarker of atherosclerosis, ApoB100 seems to be implicated in the inflammatory process of atherosclerosis per se. In this review, we will focus on the structure, the metabolism, and the function of ApoB100, as well as its role as a predictor biomarker of cardiovascular risk. Moreover, we will elaborate upon the molecular mechanisms regarding the pathophysiology of atherosclerosis, and we will discuss the disorders associated with the APOB gene mutations, and the potential role of various drugs as therapeutic targets.
Collapse
Affiliation(s)
- Dimitris Kounatidis
- Second Department of Internal Medicine, Hippokration General Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Natalia G Vallianou
- Department of Internal Medicine, Evangelismos General Hospital, 10676 Athens, Greece
| | - Aikaterini Poulaki
- Hematology Unit, Second Department of Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | | | - Fotis Panagopoulos
- Department of Internal Medicine, Evangelismos General Hospital, 10676 Athens, Greece
| | - Theodora Stratigou
- Department of Endocrinology and Metabolism, Evangelismos General Hospital, 10676 Athens, Greece
| | - Eleni Geladari
- Department of Internal Medicine, Evangelismos General Hospital, 10676 Athens, Greece
| | - Irene Karampela
- Second Department of Critical Care, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Maria Dalamaga
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| |
Collapse
|