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Wang X, Zhu L, Liu J, Ma Y, Qiu C, Liu C, Gong Y, Yuwen Y, Guan G, Zhang Y, Pan S, Wang J, Liu Z. Palmitic acid in type 2 diabetes mellitus promotes atherosclerotic plaque vulnerability via macrophage Dll4 signaling. Nat Commun 2024; 15:1281. [PMID: 38346959 PMCID: PMC10861578 DOI: 10.1038/s41467-024-45582-8] [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: 06/26/2023] [Accepted: 01/26/2024] [Indexed: 02/15/2024] Open
Abstract
Patients with Type 2 Diabetes Mellitus are increasingly susceptible to atherosclerotic plaque vulnerability, leading to severe cardiovascular events. In this study, we demonstrate that elevated serum levels of palmitic acid, a type of saturated fatty acid, are significantly linked to this enhanced vulnerability in patients with Type 2 Diabetes Mellitus. Through a combination of human cohort studies and animal models, our research identifies a key mechanistic pathway: palmitic acid induces macrophage Delta-like ligand 4 signaling, which in turn triggers senescence in vascular smooth muscle cells. This process is critical for plaque instability due to reduced collagen synthesis and deposition. Importantly, our findings reveal that macrophage-specific knockout of Delta-like ligand 4 in atherosclerotic mice leads to reduced plaque burden and improved stability, highlighting the potential of targeting this pathway. These insights offer a promising direction for developing therapeutic strategies to mitigate cardiovascular risks in patients with Type 2 Diabetes Mellitus.
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Affiliation(s)
- Xiqiang Wang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
| | - Ling Zhu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
| | - Jing Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
| | - Yanpeng Ma
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
| | - Chuan Qiu
- Division of Bioinformatics and Genomics, Deming Department of Medicine, Tulan Center of Biomedical Informatics and Genomics, Tulane University, New Orleans, LA, 70112, USA
| | - Chengfeng Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
| | - Yangchao Gong
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
| | - Ya Yuwen
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
- Medical School, Xizang Minzu University, Xianyang, Shaanxi Province, 712000, China
| | - Gongchang Guan
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China
| | - Yong Zhang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China.
| | - Shuo Pan
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China.
| | - Junkui Wang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China.
| | - Zhongwei Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, 710068, China.
- Affiliated Shaanxi Provincial People's Hospital, Medical Research Institute, Northwestern Polytechnical University, Xi'an, Shaanxi Province, 710072, China.
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Ma Y, Zheng S, Wang X, Zhu L, Wang J, Pan S, Zhang Y, Liu Z. AGEs induce high expression of Dll4 via endoplasmic reticulum stress PERK signaling-mediated internal ribosomal entry site mechanism in macrophages. Heliyon 2023; 9:e21170. [PMID: 37886757 PMCID: PMC10597754 DOI: 10.1016/j.heliyon.2023.e21170] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Background and aim Advanced glycation end products (AGEs)- exposed macrophages was characterized by Delta-like ligand 4 (Dll4) high expressed and has been shown to participate in diabetes-related atherosclerosis. This study was aimed to investigate the translational regulatory mechanism of Dll4 high expression in macrophages exposed to AGEs. Methods Human Dll4 5' untranslated region (5'UTR) sequence was cloned and inserted into a bicistronic reporter plasmid. Human THP-1 macrophages transfected with the bicistronic reporter plasmids were exposed to AGEs. Dual-luciferase assay was used to detect internal ribosome entry site (IRES) activity contained in Dll4 5'UTR. Small interference RNA transfection was used to knock-down specific gene expression. Localization of protein was analyzed. Results AGEs exposure significantly induced IRES activity in Dll4 5' UTR in human macrophages. Internal potential promoter and ribosome read-through mechanisms were excluded. Inhibition of endoplasmic reticulum stress and specific silencing of protein kinase R-like endoplasmic reticulum kinase (PERK)/eukaryotic initiation factor 2α (eIF2α) signaling pathway activation reduced IRES activity in Dll4 5' UTR in human macrophages. Dll4 5' UTR IRES activity was also inhibited by targeted silencing of heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1). Moreover, specific inhibition of PERK/eIF2α signaling pathway led to deactivation of hnRNPA1, resulting to reduction of AGEs- induced Dll4 5' UTR IRES activity in human macrophages. Conclusions AGEs induced Dll4 5' UTR IRES activity in human macrophages which was dependent on endoplasmic reticulum stress PERK/eIF2α signaling pathway. hnRNPA1 acted the role as an ITAF was also indispensable for AGEs-induced Dll4 5'UTR IRES activity in human macrophages.
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Affiliation(s)
- Yanpeng Ma
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Atherosclerosis Integrated Chinese and Western Medicine Key Research Laboratory, Research Office of Shaanxi Administration of Traditional Chinese Medicine, Xi'an, 710003, China
- Affiliated Shaanxi Provincial People's Hospital, Northwestern Polytechnical University, Xi'an, 710068, China
| | - Shixiang Zheng
- Department of Critical Medicine, Fujian Medical University Union Hospital, Fuzhou, 350000, China
| | - Xiqiang Wang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Atherosclerosis Integrated Chinese and Western Medicine Key Research Laboratory, Research Office of Shaanxi Administration of Traditional Chinese Medicine, Xi'an, 710003, China
- Affiliated Shaanxi Provincial People's Hospital, Northwestern Polytechnical University, Xi'an, 710068, China
| | - Ling Zhu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Atherosclerosis Integrated Chinese and Western Medicine Key Research Laboratory, Research Office of Shaanxi Administration of Traditional Chinese Medicine, Xi'an, 710003, China
- Affiliated Shaanxi Provincial People's Hospital, Northwestern Polytechnical University, Xi'an, 710068, China
| | - Junkui Wang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Atherosclerosis Integrated Chinese and Western Medicine Key Research Laboratory, Research Office of Shaanxi Administration of Traditional Chinese Medicine, Xi'an, 710003, China
- Affiliated Shaanxi Provincial People's Hospital, Northwestern Polytechnical University, Xi'an, 710068, China
| | - Shuo Pan
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Atherosclerosis Integrated Chinese and Western Medicine Key Research Laboratory, Research Office of Shaanxi Administration of Traditional Chinese Medicine, Xi'an, 710003, China
- Affiliated Shaanxi Provincial People's Hospital, Northwestern Polytechnical University, Xi'an, 710068, China
| | - Yong Zhang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Atherosclerosis Integrated Chinese and Western Medicine Key Research Laboratory, Research Office of Shaanxi Administration of Traditional Chinese Medicine, Xi'an, 710003, China
- Affiliated Shaanxi Provincial People's Hospital, Northwestern Polytechnical University, Xi'an, 710068, China
| | - Zhongwei Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Atherosclerosis Integrated Chinese and Western Medicine Key Research Laboratory, Research Office of Shaanxi Administration of Traditional Chinese Medicine, Xi'an, 710003, China
- Affiliated Shaanxi Provincial People's Hospital, Northwestern Polytechnical University, Xi'an, 710068, China
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Forlano R, Mullish BH, Nathwani R, Dhar A, Thursz MR, Manousou P. Non-Alcoholic Fatty Liver Disease and Vascular Disease. Curr Vasc Pharmacol 2020; 19:269-279. [DOI: 10.2174/1570161118666200318103001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/24/2020] [Accepted: 03/01/2020] [Indexed: 02/07/2023]
Abstract
Non-Alcoholic Fatty Liver Disease (NAFLD) represents an increasing cause of liver disease
worldwide. However, notably, the primary cause of morbidity and mortality in patients with NAFLD is
cardiovascular disease (CVD), with fibrosis stage being the strongest disease-specific predictor. It is
globally projected that NAFLD will become increasingly prevalent, especially among children and
younger adults. As such, even within the next few years, NAFLD will contribute considerably to the
overall CVD burden.
In this review, we discuss the role of NAFLD as an emerging risk factor for CVD. In particular, this
article aims to provide an overview of pathological drivers of vascular damage in patients with NAFLD.
Moreover, the impact of NAFLD on the development, severity and the progression of subclinical and
clinical CVD will be discussed. Finally, the review illustrates current and potential future perspectives
to screen for CVD in this high-risk population.
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Affiliation(s)
- Roberta Forlano
- Liver Unit, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Benjamin H. Mullish
- Liver Unit, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Rooshi Nathwani
- Liver Unit, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Ameet Dhar
- Liver Unit, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Mark R. Thursz
- Liver Unit, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Pinelopi Manousou
- Liver Unit, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
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Matrine blocks AGEs- induced HCSMCs phenotypic conversion via suppressing Dll4-Notch pathway. Eur J Pharmacol 2018; 835:126-131. [PMID: 30063915 DOI: 10.1016/j.ejphar.2018.07.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 11/23/2022]
Abstract
Vascular smooth muscle cells (VSMCs) contractile- synthetic phenotypic conversion takes responsibility in the atherosclerotic plaque formation by abnormal synthesis, secretion and deposition of extracellular matrix (ECM). Matrine exerts therapeutic effects on both cardiovascular diseases and organ fibrosis. In this study, we investigated matrine's inhibitory effect and mechanisms on AGEs- induced VSMC contractile- synthetic phenotypic conversion. Cultured human coronary smooth muscle cells (HCSMCs) were exposed to AGEs. Matrine at serially diluted concentrations were used to treat the cells. HCSMCs phenotype was identified by immunofluorescent staining of contractile phenotypic markers including mooth muscle myosin heavy chain (MYH11) and smooth muscle α-actin (ACTA2). Sircol collagen assay was used to assess the collagen secretion level. Notch signaling activation was determined by luciferase assay. Western blotting was used to evaluate expression levels of collagen I, collagen VIII, Delta-like (Dll)1, Dll3, Dll4, Jagged1, Jagged2, Notch intracellular domain (NICD)1 and Hes family basic helix-loop-helix (bHLH) transcription factor1 (HES1). Matrine pre-treatment recovered the AGEs- induced contractile- synthetic phenotypic conversion by increasing MYH11 and ACTA2 in HCSMCs. Matrine reduced AGEs- mediated activation of Notch signaling, down-regulated expression levels of NICD1, HES1, collagen I and collagen VIII and collagen secretion contents in HCSMCs. Matrine inhibited expression level of Dll4 without affecting other Notch ligands including Dll1, Dll3, Jagged1 and Jagged2 in HCSMCs exposed to AGEs. These results suggested that AGEs exposure facilitated the contractile- synthetic phenotypic conversion of HCSMCs. Matrine blocked this phenotypic conversion by suppressing Dll4- Notch signaling pathway activation.
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McCarty MF, DiNicolantonio JJ. The protection conferred by chelation therapy in post-MI diabetics might be replicated by high-dose zinc supplementation. Med Hypotheses 2015; 84:451-5. [DOI: 10.1016/j.mehy.2015.01.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 01/23/2015] [Accepted: 01/26/2015] [Indexed: 12/20/2022]
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Paneni F, Costantino S, Cosentino F. Insulin resistance, diabetes, and cardiovascular risk. Curr Atheroscler Rep 2015; 16:419. [PMID: 24781596 DOI: 10.1007/s11883-014-0419-z] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Obesity and type 2 diabetes mellitus (T2DM) are major drivers of cardiovascular disease (CVD). The link between environmental factors, obesity, and dysglycemia indicates that progression to diabetes with time occurs along a "continuum", not necessarily linear, which involves different cellular mechanisms including alterations of insulin signaling, changes in glucose transport, pancreatic beta cell dysfunction, as well as the deregulation of key genes involved in oxidative stress and inflammation. The present review critically addresses key pathophysiological aspects including (i) hyperglycemia and insulin resistance as predictors of CV outcome, (ii) molecular mechanisms underpinning the progression of diabetic vascular complications despite intensive glycemic control, and (iii) stratification of CV risk, with particular emphasis on emerging biomarkers. Taken together, these important aspects may contribute to the development of promising diagnostic approaches as well as mechanism-based therapeutic strategies to reduce CVD burden in obese and diabetic subjects.
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Affiliation(s)
- Francesco Paneni
- Cardiology Unit, Department of Medicine, Karolinska University Hospital, Solna, 171 76, Stockholm, Sweden
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Paneni F, Costantino S, Cosentino F. Molecular mechanisms of vascular dysfunction and cardiovascular biomarkers in type 2 diabetes. Cardiovasc Diagn Ther 2014; 4:324-32. [PMID: 25276618 DOI: 10.3978/j.issn.2223-3652.2014.08.02] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 07/30/2014] [Indexed: 12/18/2022]
Abstract
Prevalence of obesity and type 2 diabetes (T2DM) is alarmingly increasing worldwide. Albeit advances in therapy have reduced morbidity and mortality in T2DM, cardiovascular risk is far to be eradicated and mechanism-based therapeutic approaches are in high demand. In this perspective, deciphering novel molecular networks of vascular disease will be instrumental to develop novel diagnostic and therapeutic strategies in people affected by diabetes. There is therefore a need to address current knowledge gaps in disease aetiology in order to support innovation in diagnosis and treatment. Unfortunately, we are still lacking cost-effective markers able to identify atherosclerotic vascular disease at an early stage. The issue of risk stratification deserves attention because not every T2DM patient carries the same degree of inflammation and oxidative stress. The diversity of metabolic phenotypes with different outcomes underscores the need for cardiovascular risk stratification within such heterogeneous population. Early predictors of vascular damage are mandatory to implement intensive treatment strategies and, hence, reduce cardiovascular disease burden in this setting. In this review we critically discuss novel molecular mechanisms of diabetic vascular disease and their possible translation to the clinical setting.
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Affiliation(s)
- Francesco Paneni
- Cardiology Unit, Department of Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Sarah Costantino
- Cardiology Unit, Department of Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Francesco Cosentino
- Cardiology Unit, Department of Medicine, Karolinska University Hospital, Stockholm, Sweden
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