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Du J, Yu X, Zhang W, Zhang X, Zhao H, Xu R, Wen Q. Plasma Biomarker Screening Based on Proteomic Signature of Patients with Resistant Hypertension. J Cardiovasc Transl Res 2024:10.1007/s12265-024-10541-7. [PMID: 38971921 DOI: 10.1007/s12265-024-10541-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 06/25/2024] [Indexed: 07/08/2024]
Abstract
Resistant hypertension (RH) poses a significant health challenge, yet its underlying pathogenesis remains unclear. This study employs untargeted proteomic techniques to analyze the plasma of patients with RH and controlled hypertension (CH), identifying 157 differentially expressed proteins, with TGFB1 emerging as a key candidate. Through gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment, Protein-Protein Interaction Networks (PPI) topological analysis, TGFB1's differential regulation in RH is established. ELISA verification solidifies TGFB1's role, marking it as a potential biological target for early RH diagnosis and treatment. The study underscores the importance of proteomic approaches in enhancing our understanding of RH and improving therapeutic strategies. These findings carry implications for advancing RH diagnostics and treatment modalities, addressing a critical gap in current knowledge.
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Affiliation(s)
- Jianmin Du
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Xiaoqian Yu
- Department of Cardiology, Jinan Central Hospital, Shandong University, Jinan, 250013, China
| | - Wenyu Zhang
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Xinghai Zhang
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Hengli Zhao
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Rui Xu
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China.
| | - Qing Wen
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China.
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2
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Luan S, Zhang L, Cheng X, Wang Y, Feng Q, Wei L, Jiang F, Liu J. The ability and optimal cutoff value of serum cell division cycle 42 in estimating major adverse cardiac event in STEMI patients treated with percutaneous coronary intervention. Heart Vessels 2024; 39:277-287. [PMID: 38153423 DOI: 10.1007/s00380-023-02350-w] [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: 07/14/2023] [Accepted: 10/12/2023] [Indexed: 12/29/2023]
Abstract
Cell division cycle 42 (CDC42) regulates cholesterol efflux, chronic inflammation, and reendothelialization in various atherosclerotic diseases. This study aimed to investigate the correlation of serum CDC42 with myocardial injury indicators and major adverse cardiac event (MACE) in ST-elevation myocardial infarction (STEMI) patients who were treated with percutaneous coronary intervention (PCI). In 250 STEMI patients about to receive PCI, serum samples were collected at enrollment before PCI treatment, and the serum samples were also obtained from 100 healthy controls (HCs) at enrollment. Serum CDC42 was detected by enzyme-linked immunosorbent assay. Serum CDC42 was decreased (versus HCs, P < 0.001) and negatively correlated with diabetes mellitus (P = 0.017), multivessel disease (P = 0.016), cardiac troponin I (P < 0.001), creatine kinase MB (P = 0.012), stent diameter ≥ 3.5 mm (P = 0.039), white blood cell (P < 0.001), low-density lipoprotein cholesterol (P = 0.049), and C-reactive protein (P < 0.001) in STEMI patients. Besides, 29 (11.6%) STEMI patients experienced MACE. The 1-year, 2-year, and 3-year accumulating MACE rates were 7.5%, 17.3%, and 19.3%, accordingly. Serum CDC42 was reduced in STEMI patients who experienced MACE compared to those who did not (P = 0.001). Serum CDC42 ≥ 250 pg/mL, ≥ 400 pg/mL, ≥ 700 pg/mL (cut by near integer value of 1/4th quartile, median, and 3/4th quartile) were associated with decreased accumulating MACE rates in STEMI patients (all P < 0.050). Notably, serum CDC42 ≥ 250 pg/mL (hazard ratio = 0.435, P = 0.031) was independently related to reduced accumulating MACE risk in STEMI patients. A serum CDC42 level of ≥ 250 pg/mL well predicts decreased MACE risk in STEMI patients who are treated with PCI.
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Affiliation(s)
- Shaohua Luan
- Department of Cardiology, HanDan Central Hospital, No.15 Zhonghua Road, Handan, 056001, China
| | - Lei Zhang
- Department of Cardiology, HanDan Central Hospital, No.15 Zhonghua Road, Handan, 056001, China.
| | - Xiaodan Cheng
- Department of Cardiology, HanDan Central Hospital, No.15 Zhonghua Road, Handan, 056001, China
| | - Yuanyuan Wang
- Department of Cardiology, HanDan Central Hospital, No.15 Zhonghua Road, Handan, 056001, China
| | - Qiang Feng
- Department of Cardiology, HanDan Central Hospital, No.15 Zhonghua Road, Handan, 056001, China
| | - Lei Wei
- Department of Cardiovascular Surgery, Shanxi Provincial People's Hospital, Taiyuan, 030032, China
| | - Fan Jiang
- School of Environment and Health, Yanching Institute of Technology, Langfang, 065201, China
| | - Jinjun Liu
- Department of Cardiology, HanDan Central Hospital, No.15 Zhonghua Road, Handan, 056001, China
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Kim SJ, Kwon S, Chung S, Lee EJ, Park SE, Choi SJ, Oh SY, Ryu GH, Jeon HB, Chang JW. Nervonic Acid Inhibits Replicative Senescence of Human Wharton's Jelly-Derived Mesenchymal Stem Cells. Int J Stem Cells 2024; 17:80-90. [PMID: 37822280 PMCID: PMC10899888 DOI: 10.15283/ijsc23101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/01/2023] [Accepted: 08/01/2023] [Indexed: 10/13/2023] Open
Abstract
Cellular senescence causes cell cycle arrest and promotes permanent cessation of proliferation. Since the senescence of mesenchymal stem cells (MSCs) reduces proliferation and multipotency and increases immunogenicity, aged MSCs are not suitable for cell therapy. Therefore, it is important to inhibit cellular senescence in MSCs. It has recently been reported that metabolites can control aging diseases. Therefore, we aimed to identify novel metabolites that regulate the replicative senescence in MSCs. Using a fecal metabolites library, we identified nervonic acid (NA) as a candidate metabolite for replicative senescence regulation. In replicative senescent MSCs, NA reduced senescence-associated β-galactosidase positive cells, the expression of senescence-related genes, as well as increased stemness and adipogenesis. Moreover, in non-senescent MSCs, NA treatment delayed senescence caused by sequential subculture and promoted proliferation. We confirmed, for the first time, that NA delayed and inhibited cellular senescence. Considering optimal concentration, duration, and timing of drug treatment, NA is a novel potential metabolite that can be used in the development of technologies that regulate cellular senescence.
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Affiliation(s)
- Sun Jeong Kim
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, Korea
| | - Soojin Kwon
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, Korea
| | - Soobeen Chung
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, Korea
| | - Eun Joo Lee
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, Korea
| | - Sang Eon Park
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, Korea
| | - Suk-Joo Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Seoul, Korea
| | - Soo-Young Oh
- Department of Obstetrics and Gynecology, Samsung Medical Center, Seoul, Korea
| | - Gyu Ha Ryu
- Department of Medical Device Management and Research, SAIHST, Sungkyunkwan University, Seoul, Korea
- The Office of R&D Strategy & Planning, Samsung Medical Center, Seoul, Korea
| | - Hong Bae Jeon
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
| | - Jong Wook Chang
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, Korea
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
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4
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Peng H, Wang X, Zhang L, Su Y, Yan J, Wu X. Correlation of the serum cell division cycle 42 with CD4 + T cell subsets and in-hospital mortality in Stanford type B aortic dissection patients. Front Cardiovasc Med 2024; 11:1324345. [PMID: 38476381 PMCID: PMC10927740 DOI: 10.3389/fcvm.2024.1324345] [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: 10/19/2023] [Accepted: 01/22/2024] [Indexed: 03/14/2024] Open
Abstract
Objective Cell division cycle 42 (CDC42) regulates CD4+ T-cell differentiation and participates in vascular stiffness and atherosclerosis and is involved in the progression of Stanford type B aortic dissection (TBAD). This study aimed to explore the correlation between serum CDC42 level and CD4+ T cell subsets and in-hospital mortality in TBAD patients. Methods Serum CDC42 and peripheral blood T-helper (Th) 1, Th2, and Th17 cells were detected in 127 TBAD patients by enzyme-linked immunosorbent assay and flow cytometry, respectively. Serum CDC42 was also quantified in 30 healthy controls. Results Serum CDC42 was decreased in TBAD patients vs. healthy controls (median [interquartile range (IQR)]: 418.0 (228.0-761.0) pg/ml vs. 992.0 (716.3-1,445.8) pg/ml, P < 0.001). In TBAD patients, serum CDC42 was negatively correlated with Th17 cells (P = 0.001), but not Th1 (P = 0.130) or Th2 cells (P = 0.098). Seven (5.5%) patients experienced in-hospital mortality. Serum CDC42 was reduced in patients who experienced in-hospital mortality vs. those who did not (median (IQR): 191.0 (145.0-345.0) pg/ml vs. 451.5 (298.3-766.8) pg/ml, P = 0.006). By receiver operating characteristic analysis, serum CDC42 showed a good ability for estimating in-hospital mortality [area under curve = 0.809, 95% confidence interval (CI) = 0.662-0.956]. By the multivariate logistic regression analysis, elevated serum CDC42 [odd ratio (OR) = 0.994, 95% CI = 0.998-1.000, P = 0.043] was independently correlated with lower risk of in-hospital mortality, while higher age (OR = 1.157, 95% CI = 1.017-1.316, P = 0.027) was an independent factor for increased risk of in-hospital mortality. Conclusion Serum CDC42 negatively associates with Th17 cells and is independently correlated with decreased in-hospital mortality risk in TBAD patients.
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Affiliation(s)
- Hui Peng
- Department of Cardiac Surgery, Xingtai People’s Hospital, Xingtai, Hebei, China
| | - Xugang Wang
- Department of Cardiovascular Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Longfei Zhang
- Department of Cardiac Surgery, Xingtai People’s Hospital, Xingtai, Hebei, China
| | - Yang Su
- Department of Cerebrovascular Neurosurgery, Xingtai People’s Hospital, Xingtai, Hebei, China
| | - Jieli Yan
- Department of Cardiac Surgery, Xingtai People’s Hospital, Xingtai, Hebei, China
| | - Xin Wu
- Department of Cardiac Surgery, Xingtai People’s Hospital, Xingtai, Hebei, China
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Umbayev B, Saliev T, Safarova (Yantsen) Y, Yermekova A, Olzhayev F, Bulanin D, Tsoy A, Askarova S. The Role of Cdc42 in the Insulin and Leptin Pathways Contributing to the Development of Age-Related Obesity. Nutrients 2023; 15:4964. [PMID: 38068822 PMCID: PMC10707920 DOI: 10.3390/nu15234964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/22/2023] [Accepted: 11/26/2023] [Indexed: 12/18/2023] Open
Abstract
Age-related obesity significantly increases the risk of chronic diseases such as type 2 diabetes, cardiovascular diseases, hypertension, and certain cancers. The insulin-leptin axis is crucial in understanding metabolic disturbances associated with age-related obesity. Rho GTPase Cdc42 is a member of the Rho family of GTPases that participates in many cellular processes including, but not limited to, regulation of actin cytoskeleton, vesicle trafficking, cell polarity, morphology, proliferation, motility, and migration. Cdc42 functions as an integral part of regulating insulin secretion and aging. Some novel roles for Cdc42 have also been recently identified in maintaining glucose metabolism, where Cdc42 is involved in controlling blood glucose levels in metabolically active tissues, including skeletal muscle, adipose tissue, pancreas, etc., which puts this protein in line with other critical regulators of glucose metabolism. Importantly, Cdc42 plays a vital role in cellular processes associated with the insulin and leptin signaling pathways, which are integral elements involved in obesity development if misregulated. Additionally, a change in Cdc42 activity may affect senescence, thus contributing to disorders associated with aging. This review explores the complex relationships among age-associated obesity, the insulin-leptin axis, and the Cdc42 signaling pathway. This article sheds light on the vast molecular web that supports metabolic dysregulation in aging people. In addition, it also discusses the potential therapeutic implications of the Cdc42 pathway to mitigate obesity since some new data suggest that inhibition of Cdc42 using antidiabetic drugs or antioxidants may promote weight loss in overweight or obese patients.
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Affiliation(s)
- Bauyrzhan Umbayev
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Timur Saliev
- S.D. Asfendiyarov Kazakh National Medical University, Almaty 050012, Kazakhstan;
| | - Yuliya Safarova (Yantsen)
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Aislu Yermekova
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Farkhad Olzhayev
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Denis Bulanin
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan;
| | - Andrey Tsoy
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Sholpan Askarova
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
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Hughes BK, Wallis R, Bishop CL. Yearning for machine learning: applications for the classification and characterisation of senescence. Cell Tissue Res 2023; 394:1-16. [PMID: 37016180 PMCID: PMC10558380 DOI: 10.1007/s00441-023-03768-4] [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: 11/15/2022] [Accepted: 03/05/2023] [Indexed: 04/06/2023]
Abstract
Senescence is a widely appreciated tumour suppressive mechanism, which acts as a barrier to cancer development by arresting cell cycle progression in response to harmful stimuli. However, senescent cell accumulation becomes deleterious in aging and contributes to a wide range of age-related pathologies. Furthermore, senescence has beneficial roles and is associated with a growing list of normal physiological processes including wound healing and embryonic development. Therefore, the biological role of senescent cells has become increasingly nuanced and complex. The emergence of sophisticated, next-generation profiling technologies, such as single-cell RNA sequencing, has accelerated our understanding of the heterogeneity of senescence, with distinct final cell states emerging within models as well as between cell types and tissues. In order to explore data sets of increasing size and complexity, the senescence field has begun to employ machine learning (ML) methodologies to probe these intricacies. Most notably, ML has been used to aid the classification of cells as senescent, as well as to characterise the final senescence phenotypes. Here, we provide a background to the principles of ML tasks, as well as some of the most commonly used methodologies from both traditional and deep ML. We focus on the application of these within the context of senescence research, by addressing the utility of ML for the analysis of data from different laboratory technologies (microscopy, transcriptomics, proteomics, methylomics), as well as the potential within senolytic drug discovery. Together, we aim to highlight both the progress and potential for the application of ML within senescence research.
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Affiliation(s)
- Bethany K Hughes
- Blizard Institute, Barts and The London Faculty of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, E1 2AT, UK
| | - Ryan Wallis
- Blizard Institute, Barts and The London Faculty of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, E1 2AT, UK
| | - Cleo L Bishop
- Blizard Institute, Barts and The London Faculty of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, E1 2AT, UK.
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7
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Bhansali S, Yadav AK, Bakshi C, Dhawan V. Interleukin-35 Mitigates ox-LDL-Induced Proatherogenic Effects via Modulating miRNAs Associated with Coronary Artery Disease (CAD). Cardiovasc Drugs Ther 2023; 37:667-682. [PMID: 35435604 DOI: 10.1007/s10557-022-07335-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/23/2022] [Indexed: 12/20/2022]
Abstract
PURPOSE Recent emergence of miRNAs as important regulators of processes involving lesion formation and regression has highlighted miRNAs as potent therapeutic targets for the treatment of atherosclerosis. Few studies have reported the atheroprotective role of IL-35, a novel immunosuppressive and anti-inflammatory cytokine; however, miRNA-dependent regulation underlying the anti-atherosclerotic potential of IL-35 remains elusive. METHODS THP-1 macrophages were incubated with human recombinant IL-35 (rIL-35) either in the presence or absence of ox-LDL. qRT-PCR was conducted to validate the expression levels of previously identified miRNAs including miR-197-5p, miR-4442, miR-324-3p, miR-6879-5p, and miR-6069 that were differentially expressed in peripheral blood mononuclear cells of coronary artery disease (CAD) patients vs. controls. Additionally, bioinformatic analysis was performed to predict miRNA-associated targets and their corresponding functional significance in CAD. RESULTS Exogenous IL-35 significantly decreased the average area of ox-LDL-stimulated macrophages, indicating the inhibitory effect of IL-35 on lipid-laden foam cell formation. Furthermore, rIL-35 treatment alleviated the ox-LDL-mediated atherogenic effects by modulating the expression levels of aforementioned CAD-associated miRNAs in the cultured macrophages. Moreover, functional enrichment analysis of these miRNA-related targets revealed their role in the molecular processes affecting different stages of atheroslerotic plaque development, such as macrophage polarization, T cell suppression, lipoprotein metabolism, foam cell formation, and iNOS-mediated inflammation. CONCLUSION Our observations uncover the novel role of IL-35 as an epigenetic modifier as it influences the expression level of miRNAs implicated in the pathogenesis of atherosclerosis. Thus, IL-35 cytokine therapy-mediated miRNA targeting could be an effective therapeutic strategy against the development of early atheromas in asymptomatic high-risk CAD patients.
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Affiliation(s)
- Shipra Bhansali
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
- Department of Experimental Medicine and Biotechnology, Research Block-B, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Amit Kumar Yadav
- Department of Experimental Medicine and Biotechnology, Research Block-B, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Chetan Bakshi
- Department of Experimental Medicine and Biotechnology, Research Block-B, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Veena Dhawan
- Department of Experimental Medicine and Biotechnology, Research Block-B, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India.
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Huang H, Wu S, Liang C, Qin C, Ye Z, Tang J, Chen X, Xie X, Wang C, Fu J, Deng M, Liu J. CDC42 Might Be a Molecular Signature of DWI-FLAIR Mismatch in a Nonhuman Primate Stroke Model. Brain Sci 2023; 13:brainsci13020287. [PMID: 36831829 PMCID: PMC9954026 DOI: 10.3390/brainsci13020287] [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: 12/14/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
No definitive blood markers of DWI-FLAIR mismatch, a pivotal indicator of salvageable ischemic penumbra brain tissue, are known. We previously reported that CDC42 and RHOA are associated with the ischemic penumbra. Here, we investigated whether plasma CDC42 and RHOA are surrogate markers of DWI-FLAIR mismatch. Sixteen cynomolgus macaques (3 as controls and 13 for the stroke model) were included. Guided by digital subtraction angiography (DSA), a middle cerebral artery occlusion (MCAO) model was established by occluding the middle cerebral artery (MCA) with a balloon. MRI and neurological deficit scoring were performed to evaluate postinfarction changes. Plasma CDC42 and RHOA levels were measured by enzyme-linked immunosorbent assay (ELISA). The stroke model was successfully established in eight monkeys. Based on postinfarction MRI images, experimental animals were divided into a FLAIR (-) group (N = 4) and a FLAIR (+) group (N = 4). Plasma CDC42 in the FLAIR (-) group showed a significant decrease compared with that in the FLAIR (+) group (p < 0.05). No statistically significant difference was observed for plasma RHOA. The FLAIR (-) group showed a milder neurological function deficit and a smaller infarct volume than the FLAIR (+) group (p < 0.05). Therefore, plasma CDC42 might be a new surrogate marker for DWI-FLAIR mismatch.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Jingli Liu
- Correspondence: ; Tel.: +86-0771-5305790
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9
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Role of a small GTPase Cdc42 in aging and age-related diseases. Biogerontology 2023; 24:27-46. [PMID: 36598630 DOI: 10.1007/s10522-022-10008-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/13/2022] [Indexed: 01/05/2023]
Abstract
A small GTPase, Cdc42 is evolutionarily one of the most ancient members of the Rho family, which is ubiquitously expressed and involved in a wide range of fundamental cellular functions. The crucial role of Cdc42 includes regulation of the actin cytoskeleton, cell polarity, morphology and migration, endocytosis and exocytosis, cell cycle, and proliferation in many different cell types. Many studies have provided compelling yet contradicting evidence that Cdc42 dysregulation plays an important role in cellular and tissue aging. Furthermore, Cdc42 is a critical factor in the development and progression of aging-related pathologies, such as neurodegenerative and cardiovascular disorders, diabetes type 2, and aging-related disorders of the joints and bones, and the inhibition of the Cdc42 demonstrates potentially significant therapeutic and anti-aging effects in animal models of aging and disease. However, regulation of Cdc42 expression and activity is very complex and depends on many factors, such as the origin and complexity of the tissues, hormonal status, etc. Therefore, this review is focused on current advances in understanding the underlying cellular and molecular mechanisms associated with Cdc42 activity and regulation of senescence in different cell types since they may provide a foundation for novel therapeutic strategies and targeted drugs to reverse the aging process and treat aging-associated disorders.
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10
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Feng Q, Guo J, Hou A, Guo Z, Zhang Y, Guo Y, Liu S, Cheng Z, Sun L, Meng L, Han S. The clinical role of serum cell division control 42 in coronary heart disease. Scand J Clin Lab Invest 2023; 83:45-50. [PMID: 36650947 DOI: 10.1080/00365513.2022.2164518] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cell division control 42 (CDC42) regulates blood lipids, atherosclerosis, T cell differentiation and inflammation, which is involved in the process of coronary heart disease (CHD). This study aimed to evaluate the CDC42 level and its correlation with clinical features, the T-helper 17 (Th17)/regulatory-T (Treg) cell ratio and prognosis in CHD patients. In total, 210 CHD patients, 20 healthy controls and 20 disease controls were enrolled. Serum CDC42 levels of all participants were measured by enzyme-linked immunosorbent assay. In CHD patients, Th17 and Treg cells were discovered by flow cytometry; CHD patients were followed-up for a median of 16.9 months (range of 2.5-38.2 months). CDC42 level was lowest in CHD patients (median (interquartile range (IQR)): 402.5 (287.3-599.0) pg/mL), moderate in disease controls (median (IQR): 543.5 (413.0-676.3) pg/mL) and highest in healthy controls (median (IQR): 668.0 (506.5-841.3) pg/mL) (p < .001). Moreover, in CHD patients, lower CDC42 level was related to more prevalent diabetes mellitus (p = .021), and higher levels of C-reactive protein (p = .001), Gensini score (p = .006), Th17 cells (p = .001) and Th17/Treg ratio (p < .001) but was associated with lower Treg cells (p = .018). Furthermore, CDC42 low level [below the median level (402.5 pg/mL) of CDC42 in CHD patients] was correlated with higher accumulating major adverse cardiovascular event (MACE) risk (p = .029), while no correlation was found between the quartile of CDC42 level and accumulating MACE risk in CHD patients (p = .102). The serum CDC42 level is decreased and its low level is related to higher Th17/Treg ratio and increased accumulating MACE risk in CHD patients.
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Affiliation(s)
- Qiang Feng
- Department of Cardiology, HanDan Central Hospital, Handan, China
| | - Jing Guo
- Department of Cardiology, HanDan Central Hospital, Handan, China
| | - Aijun Hou
- Department of Cardiology, HanDan Central Hospital, Handan, China
| | - Zhangli Guo
- Department of Cardiology, HanDan Central Hospital, Handan, China
| | - Yanmin Zhang
- Department of Emergency Medicine, HanDan Central Hospital, Handan, China
| | - Yanhong Guo
- Hospital Emergency Center, HanDan Central Hospital, Handan, China
| | - Shasha Liu
- Department of Emergency Medicine, HanDan Central Hospital, Handan, China
| | - Zhijie Cheng
- Department of Emergency Medicine, HanDan Central Hospital, Handan, China
| | - Lixiao Sun
- Department of Critical Care Medicine, HanDan Central Hospital, Handan, China
| | - Ling Meng
- Department of Emergency Medicine, HanDan Central Hospital, Handan, China
| | - Shasha Han
- Department of Emergency Medicine, HanDan Central Hospital, Handan, China
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11
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Gabai Y, Assouline B, Ben-Porath I. Senescent stromal cells: roles in the tumor microenvironment. Trends Cancer 2023; 9:28-41. [PMID: 36208990 DOI: 10.1016/j.trecan.2022.09.002] [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: 07/07/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 11/07/2022]
Abstract
Cellular senescence forms a barrier to tumorigenesis, by inducing cell cycle arrest in damaged and mutated cells. However, once formed, senescent cells often emit paracrine signals that can either promote or suppress tumorigenesis. There is evidence that, in addition to cancer cells, subsets of tumor stromal cells, including fibroblasts, endothelial cells, and immune cells, undergo senescence. Such senescent stromal cells can influence cancer development and progression and represent potential targets for therapy. However, understanding of their characteristics and roles is limited and few studies have dissected their functions in vivo. Here, we discuss current knowledge and pertinent questions regarding the presence of senescent stromal cells in cancers, the triggers that elicit their formation, and their potential roles within the tumor microenvironment.
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Affiliation(s)
- Yael Gabai
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Benjamin Assouline
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ittai Ben-Porath
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
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12
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Shouib R, Eitzen G. Cdc42 regulates cytokine expression and trafficking in bronchial epithelial cells. Front Immunol 2022; 13:1069499. [PMID: 36618374 PMCID: PMC9816864 DOI: 10.3389/fimmu.2022.1069499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/30/2022] [Indexed: 12/25/2022] Open
Abstract
Airway epithelial cells can respond to incoming pathogens, allergens and stimulants through the secretion of cytokines and chemokines. These pro-inflammatory mediators activate inflammatory signaling cascades that allow a robust immune response to be mounted. However, uncontrolled production and release of cytokines and chemokines can result in chronic inflammation and appears to be an underlying mechanism for the pathogenesis of pulmonary disorders such as asthma and COPD. The Rho GTPase, Cdc42, is an important signaling molecule that we hypothesize can regulate cytokine production and release from epithelial cells. We treated BEAS-2B lung epithelial cells with a set of stimulants to activate inflammatory pathways and cytokine release. The production, trafficking and secretion of cytokines were assessed when Cdc42 was pharmacologically inhibited with ML141 drug or silenced with lentiviral-mediated shRNA knockdown. We found that Cdc42 inhibition with ML141 differentially affected gene expression of a subset of cytokines; transcription of IL-6 and IL-8 were increased while MCP-1 was decreased. However, Cdc42 inhibition or depletion disrupted IL-8 trafficking and reduced its secretion even though transcription was increased. Cytokines transiting through the Golgi were particularly affected by Cdc42 disruption. Our results define a role for Cdc42 in the regulation of cytokine production and release in airway epithelial cells. This underscores the role of Cdc42 in coupling receptor activation to downstream gene expression and also as a regulator of cytokine secretory pathways.
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13
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Cheng X, Ye J, Zhang X, Meng K. Longitudinal Variations of CDC42 in Patients With Acute Ischemic Stroke During 3-Year Period: Correlation With CD4 + T Cells, Disease Severity, and Prognosis. Front Neurol 2022; 13:848933. [PMID: 35547377 PMCID: PMC9081787 DOI: 10.3389/fneur.2022.848933] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/11/2022] [Indexed: 12/26/2022] Open
Abstract
Objective Cell division cycle 42 (CDC42) modulates CD4+ T-cell differentiation, blood lipids, and neuronal apoptosis and is involved in the pathogenesis of acute ischemic stroke (AIS); however, the clinical role of CDC42 in AIS remains unanswered. This study aimed to evaluate the expression of CDC42 in a 3-year follow-up and its correlation with disease severity, T helper (Th)1/2/17 cells, and the prognosis in patients with AIS. Methods Blood CDC42 was detected in 143 patients with AIS at multiple time points during the 3-year follow-up period and in 70 controls at admission by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). In addition, blood Th1, Th2, and Th17 cells and their secreted cytokines (interferon-γ (IFN-γ), interleukin-4 (IL-4), and interleukin-17A (IL-17A)) in patients with AIS were detected by flow cytometry and enzyme-linked immunosorbent assay (ELISA), respectively. Results Compared with controls (p < 0.001), CDC42 was reduced in patients with AIS. CDC42 was negatively correlated with the National Institutes of Health Stroke Scale (NIHSS) score (p < 0.001), whereas, in patients with AIS (all p < 0.050), it was positively associated with Th2 cells and IL-4 but negatively correlated with Th17 cells and IL-17A. CDC42 was decreased from admission to 3 days and gradually increased from 3 days to 3 years in patients with AIS (P<0.001). In a 3-year follow-up, 24 patients with AIS recurred and 8 patients died. On the 3rd day, 7th day, 1st month, 3rd month, 6th month, 1st year, 2nd year, and 3rd year, CDC42 was decreased in recurrent patients than that in non-recurrent patients (all p < 0.050). CDC42 at 7 days (p = 0.033) and 3 months (p = 0.023) was declined in reported deceased patients than in survived patients. Conclusion CDC42 is used as a biomarker to constantly monitor disease progression and recurrence risk of patients with AIS.
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Affiliation(s)
- Xiao Cheng
- Department of Neurology, ShanXi Province People's Hospital of Shanxi Medical University, Taiyuan, China.,Shanxi Key Laboratory of Brain Disease Control, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Jianxin Ye
- Department of Neurology, The 900th Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Fuzhou, China
| | - Xiaolei Zhang
- Department of Neurology, ShanXi Province People's Hospital of Shanxi Medical University, Taiyuan, China
| | - Kun Meng
- Department of Neurology, ShanXi Province People's Hospital of Shanxi Medical University, Taiyuan, China
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14
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Zheng PF, Chen LZ, Liu P, Pan HW. A novel lncRNA-miRNA-mRNA triple network identifies lncRNA XIST as a biomarker for acute myocardial infarction. Aging (Albany NY) 2022; 14:4085-4106. [PMID: 35537778 PMCID: PMC9134965 DOI: 10.18632/aging.204075] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/16/2022] [Indexed: 11/25/2022]
Abstract
Despite the well-established role of long non-coding RNAs (lncRNAs) across various biological processes, their mechanisms in acute myocardial infarction (AMI) are not fully elucidated. The GSE34198 dataset from the Gene Expression Omnibus (GEO) database, which comprised 49 specimens from individuals with AMI and 47 specimens from controls, was extracted and analysed using the weighted gene co-expression network analysis (WGCNA) package. Twenty-seven key genes were identified through a combination of the degree and gene significance (GS) values, and the CDC42 (degree = 64), JAK2 (degree = 41), and CHUK (degree = 30) genes were identified as having the top three-degree values among the 27 genes. Potential interactions between lncRNA, miRNAs and mRNAs were predicted using the starBase V3.0 database, and a lncRNA-miRNA-mRNA triple network containing the lncRNA XIST, twenty-one miRNAs and three hub genes (CDC42, JAK2 and CHUK) was identified. RT-qPCR validation showed that the expression of the JAK2 and CDC42 genes and the lncRNA XIST was noticeably increased in samples from patients with AMI compared to normal samples. Pearson's correlation analysis also proved that JAK2 and CDC42 expression levels correlated positively with lncRNA XIST expression levels. The area under ROC curve (AUC) of lncRNA XIST was 0.886, and the diagnostic efficacy of the lncRNA XIST was significantly better than that of JAK2 and CDC42. The results suggested that the lncRNA XIST appears to be a risk factor for AMI likely through its ability to regulate JAK2 and CDC42 gene expressions, and it is expected to be a novel and reliable biomarker for the diagnosis of AMI.
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Affiliation(s)
- Peng-Fei Zheng
- Cardiology Department, Hunan Provincial People's Hospital, Furong District, Changsha 410000, Hunan, China.,Clinical Research Center for Heart Failure in Hunan Province, Furong District, Changsha 410000, Hunan, China.,Institute of Cardiovascular Epidemiology, Hunan Provincial People's Hospital, Furong District, Changsha 410000, Hunan, China
| | - Lu-Zhu Chen
- Department of Cardiology, The Central Hospital of ShaoYang, Daxiang District, Shaoyang 422000, Hunan, China
| | - Peng Liu
- Department of Cardiology, The Central Hospital of ShaoYang, Daxiang District, Shaoyang 422000, Hunan, China
| | - Hong-Wei Pan
- Cardiology Department, Hunan Provincial People's Hospital, Furong District, Changsha 410000, Hunan, China.,Clinical Research Center for Heart Failure in Hunan Province, Furong District, Changsha 410000, Hunan, China.,Institute of Cardiovascular Epidemiology, Hunan Provincial People's Hospital, Furong District, Changsha 410000, Hunan, China
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15
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Sun J, Cheng B, Su Y, Li M, Ma S, Zhang Y, Zhang A, Cai S, Bao Q, Wang S, Zhu P. The Potential Role of m6A RNA Methylation in the Aging Process and Aging-Associated Diseases. Front Genet 2022; 13:869950. [PMID: 35518355 PMCID: PMC9065606 DOI: 10.3389/fgene.2022.869950] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/31/2022] [Indexed: 12/15/2022] Open
Abstract
N6-methyladenosine (m6A) is the most common and conserved internal eukaryotic mRNA modification. m6A modification is a dynamic and reversible post-transcriptional regulatory modification, initiated by methylase and removed by RNA demethylase. m6A-binding proteins recognise the m6A modification to regulate gene expression. Recent studies have shown that altered m6A levels and abnormal regulator expression are crucial in the ageing process and the occurrence of age-related diseases. In this review, we summarise some key findings in the field of m6A modification in the ageing process and age-related diseases, including cell senescence, autophagy, inflammation, oxidative stress, DNA damage, tumours, neurodegenerative diseases, diabetes, and cardiovascular diseases (CVDs). We focused on the biological function and potential molecular mechanisms of m6A RNA methylation in ageing and age-related disease progression. We believe that m6A modification may provide a new target for anti-ageing therapies.
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Affiliation(s)
- Jin Sun
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Bokai Cheng
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Yongkang Su
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Man Li
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Shouyuan Ma
- Department of Geriatric Cardiology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yan Zhang
- Department of Outpatient, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Anhang Zhang
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Shuang Cai
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Qiligeer Bao
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Shuxia Wang
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Ping Zhu
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
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16
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Interconnections between Inflammageing and Immunosenescence during Ageing. Cells 2022; 11:cells11030359. [PMID: 35159168 PMCID: PMC8834134 DOI: 10.3390/cells11030359] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/13/2022] [Accepted: 01/15/2022] [Indexed: 02/04/2023] Open
Abstract
Acute inflammation is a physiological response to injury or infection, with a cascade of steps that ultimately lead to the recruitment of immune cells to clear invading pathogens and heal wounds. However, chronic inflammation arising from the continued presence of the initial trigger, or the dysfunction of signalling and/or effector pathways, is harmful to health. While successful ageing in older adults, including centenarians, is associated with low levels of inflammation, elevated inflammation increases the risk of poor health and death. Hence inflammation has been described as one of seven pillars of ageing. Age-associated sterile, chronic, and low-grade inflammation is commonly termed inflammageing-it is not simply a consequence of increasing chronological age, but is also a marker of biological ageing, multimorbidity, and mortality risk. While inflammageing was initially thought to be caused by "continuous antigenic load and stress", reports from the last two decades describe a much more complex phenomenon also involving cellular senescence and the ageing of the immune system. In this review, we explore some of the main sources and consequences of inflammageing in the context of immunosenescence and highlight potential interventions. In particular, we assess the contribution of cellular senescence to age-associated inflammation, identify patterns of pro- and anti-inflammatory markers characteristic of inflammageing, describe alterations in the ageing immune system that lead to elevated inflammation, and finally assess the ways that diet, exercise, and pharmacological interventions can reduce inflammageing and thus, improve later life health.
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17
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Zhou M, Wu J, Tan G. The relation of circulating cell division cycle 42 expression with Th1, Th2, and Th17 cells, adhesion molecules, and biochemical indexes in coronary heart disease patients. Ir J Med Sci 2021; 191:2085-2090. [PMID: 34811660 DOI: 10.1007/s11845-021-02836-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/21/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Cell division cycle 42 (CDC42) regulates macrophage polarization, vascular inflammation, atherosclerosis progression, and modifies differentiation of T helper (Th) cells, while its potential as a biomarker in coronary heart disease (CHD) patients is still lacking. This study aimed to evaluate CDC42 expression, its correlation with Th1, Th2, and Th17 cells, adhesion molecules, and biochemical indexes in CHD patients. METHODS One hundred two CHD patients and 50 controls were enrolled. CDC42 expression in peripheral blood mononuclear cells was assessed by reverse transcription quantitative polymerase chain reaction in all participants. In CHD patients, Th1, Th2, and Th17 cells were detected by flow cytometric analysis; meanwhile, serum levels of inflammatory cytokines and adhesion molecules were detected by enzyme-linked immunosorbent assay. RESULTS CDC42 was lower in CHD patients (median (interquartile range (IQR)) = 0.431 (0.304-0.722)) than in controls (median (IQR) = 0.985 (0.572-1.760)) (p < 0.001). CDC42 was positively associated with Th2 cells (p = 0.016) and interleukin (IL)-10 (p = 0.034), but negatively correlated with Th17 cells (p < 0.001) and IL-17A (p < 0.001) in CHD patients. However, no association was found in CDC42 with Th1 cells (p = 0.199) or interferon-γ (p = 0.367) in CHD patients. Besides, CDC42 was negatively correlated with vascular cell adhesion molecule-1 (p = 0.013) and intercellular cell adhesion molecule-1 (p = 0.001) in CHD patients. Additionally, CDC42 negatively associated with C-reactive protein (p < 0.001), Gensini score (p < 0.001), total cholesterol (p = 0.039), and low-density lipoprotein cholesterol (p = 0.014), but not with other biochemical indexes (p > 0.05) in CHD patients. CONCLUSION CDC42 correlates with Th2 cells, Th17 cells, and adhesion molecules, also reflects inflammation, coronary stenosis degree, and cholesterol level in CHD patients.
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Affiliation(s)
- Mi Zhou
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, No. 26 Shengli Street, Jiang'an District, Hubei, 430030, China
| | - Jian Wu
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, No. 26 Shengli Street, Jiang'an District, Hubei, 430030, China
| | - Gang Tan
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, No. 26 Shengli Street, Jiang'an District, Hubei, 430030, China.
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18
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Inhibition of Soluble Epoxide Hydrolase Is Protective against the Multiomic Effects of a High Glycemic Diet on Brain Microvascular Inflammation and Cognitive Dysfunction. Nutrients 2021; 13:nu13113913. [PMID: 34836168 PMCID: PMC8622784 DOI: 10.3390/nu13113913] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 12/22/2022] Open
Abstract
Diet is a modifiable risk factor for cardiovascular disease (CVD) and dementia, yet relatively little is known about the effect of a high glycemic diet (HGD) on the brain’s microvasculature. The objective of our study was to determine the molecular effects of an HGD on hippocampal microvessels and cognitive function and determine if a soluble epoxide hydrolase (sEH) inhibitor (sEHI), known to be vasculoprotective and anti-inflammatory, modulates these effects. Wild type male mice were fed a low glycemic diet (LGD, 12% sucrose/weight) or an HGD (34% sucrose/weight) with/without the sEHI, trans-4-[4-(3-adamantan-1-yl-ureido)-cyclohexyloxy]-benzoic acid (t-AUCB), for 12 weeks. Brain hippocampal microvascular gene expression was assessed by microarray and data analyzed using a multi-omic approach for differential expression of protein and non-protein-coding genes, gene networks, functional pathways, and transcription factors. Global hippocampal microvascular gene expression was fundamentally different for mice fed the HGD vs. the LGD. The HGD response was characterized by differential expression of 608 genes involved in cell signaling, neurodegeneration, metabolism, and cell adhesion/inflammation/oxidation effects reversible by t-AUCB and hence sEH inhibitor correlated with protection against Alzheimer’s dementia. Ours is the first study to demonstrate that high dietary glycemia contributes to brain hippocampal microvascular inflammation through sEH.
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19
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Gene Expression Profile in Different Age Groups and Its Association with Cognitive Function in Healthy Malay Adults in Malaysia. Cells 2021; 10:cells10071611. [PMID: 34199148 PMCID: PMC8304476 DOI: 10.3390/cells10071611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/13/2021] [Accepted: 06/21/2021] [Indexed: 11/16/2022] Open
Abstract
The mechanism of cognitive aging at the molecular level is complex and not well understood. Growing evidence suggests that cognitive differences might also be caused by ethnicity. Thus, this study aims to determine the gene expression changes associated with age-related cognitive decline among Malay adults in Malaysia. A cross-sectional study was conducted on 160 healthy Malay subjects, aged between 28 and 79, and recruited around Selangor and Klang Valley, Malaysia. Gene expression analysis was performed using a HumanHT-12v4.0 Expression BeadChip microarray kit. The top 20 differentially expressed genes at p < 0.05 and fold change (FC) = 1.2 showed that PAFAH1B3, HIST1H1E, KCNA3, TM7SF2, RGS1, and TGFBRAP1 were regulated with increased age. The gene set analysis suggests that the Malay adult's susceptibility to developing age-related cognitive decline might be due to the changes in gene expression patterns associated with inflammation, signal transduction, and metabolic pathway in the genetic network. It may, perhaps, have important implications for finding a biomarker for cognitive decline and offer molecular targets to achieve successful aging, mainly in the Malay population in Malaysia.
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20
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Sun X, Feinberg MW. Vascular Endothelial Senescence: Pathobiological Insights, Emerging Long Noncoding RNA Targets, Challenges and Therapeutic Opportunities. Front Physiol 2021; 12:693067. [PMID: 34220553 PMCID: PMC8242592 DOI: 10.3389/fphys.2021.693067] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/07/2021] [Indexed: 01/10/2023] Open
Abstract
Cellular senescence is a stable form of cell cycle arrest in response to various stressors. While it serves as an endogenous pro-resolving mechanism, detrimental effects ensue when it is dysregulated. In this review, we introduce recent advances for cellular senescence and inflammaging, the underlying mechanisms for the reduction of nicotinamide adenine dinucleotide in tissues during aging, new knowledge learned from p16 reporter mice, and the development of machine learning algorithms in cellular senescence. We focus on pathobiological insights underlying cellular senescence of the vascular endothelium, a critical interface between blood and all tissues. Common causes and hallmarks of endothelial senescence are highlighted as well as recent advances in endothelial senescence. The regulation of cellular senescence involves multiple mechanistic layers involving chromatin, DNA, RNA, and protein levels. New targets are discussed including the roles of long noncoding RNAs in regulating endothelial cellular senescence. Emerging small molecules are highlighted that have anti-aging or anti-senescence effects in age-related diseases and impact homeostatic control of the vascular endothelium. Lastly, challenges and future directions are discussed including heterogeneity of endothelial cells and endothelial senescence, senescent markers and detection of senescent endothelial cells, evolutionary differences for immune surveillance in mice and humans, and long noncoding RNAs as therapeutic targets in attenuating cellular senescence. Accumulating studies indicate that cellular senescence is reversible. A better understanding of endothelial cellular senescence through lifestyle and pharmacological interventions holds promise to foster a new frontier in the management of cardiovascular disease risk.
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Affiliation(s)
- Xinghui Sun
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, United States.,Nebraska Center for the Prevention of Obesity Diseases Through Dietary Molecules, University of Nebraska-Lincoln, Lincoln, NE, United States.,Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Mark W Feinberg
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
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21
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Magalhaes YT, Farias JO, Silva LE, Forti FL. GTPases, genome, actin: A hidden story in DNA damage response and repair mechanisms. DNA Repair (Amst) 2021; 100:103070. [PMID: 33618126 DOI: 10.1016/j.dnarep.2021.103070] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 12/18/2022]
Abstract
The classical small Rho GTPase (Rho, Rac, and Cdc42) protein family is mainly responsible for regulating cell motility and polarity, membrane trafficking, cell cycle control, and gene transcription. Cumulative recent evidence supports important roles for these proteins in the maintenance of genomic stability. Indeed, DNA damage response (DDR) and repair mechanisms are some of the prime biological processes that underlie several disease phenotypes, including genetic disorders, cancer, senescence, and premature aging. Many reports guided by different experimental approaches and molecular hypotheses have demonstrated that, to some extent, direct modulation of Rho GTPase activity, their downstream effectors, or actin cytoskeleton regulation contribute to these cellular events. Although much attention has been paid to this family in the context of canonical actin cytoskeleton remodeling, here we provide a contextualized review of the interplay between Rho GTPase signaling pathways and the DDR and DNA repair signaling components. Interesting questions yet to be addressed relate to the spatiotemporal dynamics of this collective response and whether it correlates with different subcellular pools of Rho GTPases. We highlight the direct and indirect targets, some of which still lack experimental validation data, likely associated with Rho GTPase activation that provides compelling evidence for further investigation in DNA damage-associated events and with potential therapeutic applications in translational medicine.
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Affiliation(s)
- Yuli T Magalhaes
- Laboratory of Biomolecular Systems Signaling, Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil
| | - Jessica O Farias
- Laboratory of Biomolecular Systems Signaling, Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil
| | - Luiz E Silva
- Laboratory of Biomolecular Systems Signaling, Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil
| | - Fabio L Forti
- Laboratory of Biomolecular Systems Signaling, Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil.
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22
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Rentz T, Wanschel ACBA, de Carvalho Moi L, Lorza-Gil E, de Souza JC, Dos Santos RR, Oliveira HCF. The Anti-atherogenic Role of Exercise Is Associated With the Attenuation of Bone Marrow-Derived Macrophage Activation and Migration in Hypercholesterolemic Mice. Front Physiol 2020; 11:599379. [PMID: 33329050 PMCID: PMC7719785 DOI: 10.3389/fphys.2020.599379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/03/2020] [Indexed: 12/13/2022] Open
Abstract
An early event in atherogenesis is the recruitment and infiltration of circulating monocytes and macrophage activation in the subendothelial space. Atherosclerosis subsequently progresses as a unresolved inflammatory disease, particularly in hypercholesterolemic conditions. Although physical exercise training has been a widely accepted strategy to inhibit atherosclerosis, its impact on arterial wall inflammation and macrophage phenotype and function has not yet been directly evaluated. Thus, the aim of this study was to investigate the effects of aerobic exercise training on the inflammatory state of atherosclerotic lesions with a focus on macrophages. Hypercholesterolemic LDL-receptor-deficient male mice were subjected to treadmill training for 8 weeks and fed a high-fat diet. Analyses included plasma lipoprotein and cytokine levels; aortic root staining for lipids (oil red O); macrophages (CD68, MCP1 and IL1β); oxidative (nitrotyrosine and, DHE) and endoplasmic reticulum (GADD) stress markers. Primary bone marrow-derived macrophages (BMDM) were assayed for migration activity, motility phenotype (Rac1 and F-actin) and inflammation-related gene expression. Plasma levels of HDL cholesterol were increased, while levels of proinflammatory cytokines (TNFa, IL1b, and IL6) were markedly reduced in the exercised mice. The exercised mice developed lower levels of lipid content and inflammation in atherosclerotic plaques. Additionally, lesions in the exercised mice had lower levels of oxidative and ER stress markers. BMDM isolated from the exercised mice showed a marked reduction in proinflammatory cytokine gene expression and migratory activity and a disrupted motility phenotype. More importantly, bone marrow from exercised mice transplanted into sedentary mice led to reduced atherosclerosis in the recipient sedentary mice, thus suggesting that epigenetic mechanisms are associated with exercise. Collectively, the presented data indicate that exercise training prevents atherosclerosis by inhibiting bone marrow-derived macrophage recruitment and activation.
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Affiliation(s)
- Thiago Rentz
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
| | - Amarylis C B A Wanschel
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
| | - Leonardo de Carvalho Moi
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
| | - Estela Lorza-Gil
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
| | - Jane C de Souza
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
| | - Renata R Dos Santos
- Division of Radiotherapy, Faculty of Medical Sciences, Medical School Hospital, State University of Campinas, Campinas, Brazil
| | - Helena C F Oliveira
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas, Brazil
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23
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Xiang P, Li F, Ma Z, Yue J, Lu C, You Y, Hou L, Yin B, Qiang B, Shu P, Peng X. HCF-1 promotes cell cycle progression by regulating the expression of CDC42. Cell Death Dis 2020; 11:907. [PMID: 33097698 PMCID: PMC7584624 DOI: 10.1038/s41419-020-03094-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 08/09/2020] [Accepted: 09/09/2020] [Indexed: 11/16/2022]
Abstract
The eukaryotic cell cycle involves a highly orchestrated series of events in which the cellular genome is replicated during a synthesis (S) phase and each of the two resulting copies are segregated properly during mitosis (M). Host cell factor-1 (HCF-1) is a transcriptional co-regulator that is essential for and has been implicated in basic cellular processes, such as transcriptional regulation and cell cycle progression. Although a series of HCF-1 transcriptional targets have been identified, few functional clues have been provided, especially for chromosome segregation. Our results showed that HCF-1 activated CDC42 expression by binding to the −881 to −575 region upstream of the CDC42 transcription start site, and the regulation of CDC42 expression by HCF-1 was correlated with cell cycle progression. The overexpression of a spontaneously cycling and constitutively active CDC42 mutant (CDC42F28L) rescued G1 phase delay and multinucleate defects in mitosis upon the loss of HCF-1. Therefore, these results establish that HCF-1 ensures proper cell cycle progression by regulating the expression of CDC42, which indicates a possible mechanism of cell cycle coordination and the regulation mode of typical Rho GTPases.
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Affiliation(s)
- Pan Xiang
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Fei Li
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Zhihua Ma
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Jiping Yue
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Cailing Lu
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Yuangang You
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Lin Hou
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Bin Yin
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Boqin Qiang
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Pengcheng Shu
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China.
| | - Xiaozhong Peng
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China. .,Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China.
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24
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Casella G, Munk R, Kim KM, Piao Y, De S, Abdelmohsen K, Gorospe M. Transcriptome signature of cellular senescence. Nucleic Acids Res 2019; 47:7294-7305. [PMID: 31251810 DOI: 10.1093/nar/gkz555] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/08/2019] [Accepted: 06/12/2019] [Indexed: 02/07/2023] Open
Abstract
Cellular senescence, an integral component of aging and cancer, arises in response to diverse triggers, including telomere attrition, macromolecular damage and signaling from activated oncogenes. At present, senescent cells are identified by the combined presence of multiple traits, such as senescence-associated protein expression and secretion, DNA damage and β-galactosidase activity; unfortunately, these traits are neither exclusively nor universally present in senescent cells. To identify robust shared markers of senescence, we have performed RNA-sequencing analysis across eight diverse models of senescence triggered in human diploid fibroblasts (WI-38, IMR-90) and endothelial cells (HUVEC, HAEC) by replicative exhaustion, exposure to ionizing radiation or doxorubicin, and expression of the oncogene HRASG12V. The intersection of the altered transcriptomes revealed 50 RNAs consistently elevated and 18 RNAs consistently reduced across all senescence models, including many protein-coding mRNAs and some non-coding RNAs. We propose that these shared transcriptome profiles will enable the identification of senescent cells in vivo, the investigation of their roles in aging and malignancy and the development of strategies to target senescent cells therapeutically.
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Affiliation(s)
- Gabriel Casella
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, Maryland 21224, USA
| | - Rachel Munk
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, Maryland 21224, USA
| | - Kyoung Mi Kim
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, Maryland 21224, USA
| | - Yulan Piao
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, Maryland 21224, USA
| | - Supriyo De
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, Maryland 21224, USA
| | - Kotb Abdelmohsen
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, Maryland 21224, USA
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, Maryland 21224, USA
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25
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Casella G, Tsitsipatis D, Abdelmohsen K, Gorospe M. mRNA methylation in cell senescence. WILEY INTERDISCIPLINARY REVIEWS. RNA 2019; 10:e1547. [PMID: 31144457 PMCID: PMC8474013 DOI: 10.1002/wrna.1547] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/23/2019] [Accepted: 05/01/2019] [Indexed: 01/06/2023]
Abstract
Cellular senescence, a developmental program central to normal aging and aging pathologies, is robustly regulated at the post-transcriptional level. This regulation involves the interaction of RNA-binding proteins and noncoding RNAs with senescence-associated messenger RNAs (mRNAs). There is increasing evidence that these associations are modulated by chemical modifications of specific mRNA nucleotides which can enhance or reduce the binding of regulatory factors. Recent technological advances in mass spectrometry, next-generation sequencing, and genome mapping have improved markedly the detection of mRNA modifications. Given the rising interest in the epitranscriptomic control of gene expression in aging, we discuss our incipient understanding of the chemical mRNA modifications, specifically m6 A and m5 C, that influence cellular senescence. This article is categorized under: RNA Export and Localization > RNA Localization RNA Processing > RNA Editing and Modification.
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Affiliation(s)
- Gabriel Casella
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland
| | - Dimitrios Tsitsipatis
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland
| | - Kotb Abdelmohsen
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland
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26
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Li Z, Wu J, Zhang X, Ou C, Zhong X, Chen Y, Lu L, Liu H, Li Y, Liu X, Wu B, Wang Y, Yang P, Yan J, Chen M. CDC42 promotes vascular calcification in chronic kidney disease. J Pathol 2019; 249:461-471. [PMID: 31397884 DOI: 10.1002/path.5334] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/16/2019] [Accepted: 08/06/2019] [Indexed: 01/12/2023]
Abstract
Vascular calcification is prevalent in patients with chronic kidney disease (CKD) and a major risk factor of cardiovascular disease. Vascular calcification is now recognised as a biological process similar to bone formation involving osteogenic differentiation of vascular smooth muscle cells (VSMCs). Cell division cycle 42 (CDC42), a Rac1 family member GTPase, is essential for cartilage development during endochondral bone formation. However, whether CDC42 affects osteogenic differentiation of VSMCs and vascular calcification remains unknown. In the present study, we observed a significant increase in the expression of CDC42 both in rat VSMCs and in calcified arteries during vascular calcification. Alizarin red staining and calcium content assay revealed that adenovirus-mediated CDC42 overexpression led to an apparent VSMC calcification in the presence of calcifying medium, accompanied with up-regulation of bone-related molecules including RUNX2 and BMP2. By contrast, inhibition of CDC42 by ML141 significantly blocked calcification of VSMCs in vitro and aortic rings ex vivo. Moreover, ML141 markedly attenuated vascular calcification in rats with CKD. Furthermore, pharmacological inhibition of AKT signal was shown to block CDC42-induced VSMC calcification. These findings demonstrate for the first time that CDC42 contributes to vascular calcification through a mechanism involving AKT signalling; this uncovered a new function of CDC42 in regulating vascular calcification. This may provide a potential therapeutic target for the treatment of vascular calcification in the context of CKD. © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Zehua Li
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Ji Wu
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Xiuli Zhang
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Caiwen Ou
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Xinglong Zhong
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Yanting Chen
- Department of Pathophysiology, Zhongshan Medical School, Sun Yat-Sen University, Guangzhou, PR China
| | - Lihe Lu
- Department of Pathophysiology, Zhongshan Medical School, Sun Yat-Sen University, Guangzhou, PR China
| | - Hailin Liu
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Yining Li
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Xiaoyu Liu
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Bo Wu
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Yuxi Wang
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Pingzhen Yang
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Jianyun Yan
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Minsheng Chen
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, PR China.,Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
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27
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Abstract
Cellular senescence defines an irreversible cell growth arrest state linked to loss of tissue function and aging in mammals. This transition from proliferation to senescence is typically characterized by increased expression of the cell-cycle inhibitor p16INK4a and formation of senescence-associated heterochromatin foci (SAHF). SAHF formation depends on HIRA-mediated nucleosome assembly of histone H3.3, which is regulated by the serine/threonine protein kinase Pak2. However, it is unknown if Pak2 contributes to cellular senescence. Here, we show that depletion of Pak2 delayed oncogene-induced senescence in IMR90 human fibroblasts and oxidative stress-induced senescence of mouse embryonic fibroblasts (MEFs), whereas overexpression of Pak2 accelerated senescence of IMR90 cells. Importantly, depletion of Pak2 in BubR1 progeroid mice attenuated the onset of aging-associated phenotypes and extended life span. Pak2 is required for expression of genes involved in cellular senescence and regulated the deposition of newly synthesized H3.3 onto chromatin in senescent cells. Together, our results demonstrate that Pak2 is an important regulator of cellular senescence and organismal aging, in part through the regulation of gene expression and H3.3 nucleosome assembly.
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28
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Flentje A, Kalsi R, Monahan TS. Small GTPases and Their Role in Vascular Disease. Int J Mol Sci 2019; 20:ijms20040917. [PMID: 30791562 PMCID: PMC6413073 DOI: 10.3390/ijms20040917] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 01/31/2019] [Accepted: 02/07/2019] [Indexed: 12/18/2022] Open
Abstract
Over eighty million people in the United States have cardiovascular disease that can affect the heart causing myocardial infarction; the carotid arteries causing stroke; and the lower extremities leading to amputation. The treatment for end-stage cardiovascular disease is surgical—either endovascular therapy with balloons and stents—or open reconstruction to reestablish blood flow. All interventions damage or destroy the protective inner lining of the blood vessel—the endothelium. An intact endothelium is essential to provide a protective; antithrombotic lining of a blood vessel. Currently; there are no agents used in the clinical setting that promote reendothelialization. This process requires migration of endothelial cells to the denuded vessel; proliferation of endothelial cells on the denuded vessel surface; and the reconstitution of the tight adherence junctions responsible for the formation of an impermeable surface. These processes are all regulated in part and are dependent on small GTPases. As important as the small GTPases are for reendothelialization, dysregulation of these molecules can result in various vascular pathologies including aneurysm formation, atherosclerosis, diabetes, angiogenesis, and hypertension. A better understanding of the role of small GTPases in endothelial cell migration is essential to the development for novel agents to treat vascular disease.
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Affiliation(s)
- Alison Flentje
- Division of Vascular Surgery, Department of Surgery, University of Maryland School of Medicine, 22 South Greene Street, Suite S10B00, Baltimore, MD 21201, USA.
| | - Richa Kalsi
- Division of Vascular Surgery, Department of Surgery, University of Maryland School of Medicine, 22 South Greene Street, Suite S10B00, Baltimore, MD 21201, USA.
| | - Thomas S Monahan
- Division of Vascular Surgery, Department of Surgery, University of Maryland School of Medicine, 22 South Greene Street, Suite S10B00, Baltimore, MD 21201, USA.
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29
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Yokoyama M, Shimizu I, Nagasawa A, Yoshida Y, Katsuumi G, Wakasugi T, Hayashi Y, Ikegami R, Suda M, Ota Y, Okada S, Fruttiger M, Kobayashi Y, Tsuchida M, Kubota Y, Minamino T. p53 plays a crucial role in endothelial dysfunction associated with hyperglycemia and ischemia. J Mol Cell Cardiol 2019; 129:105-117. [PMID: 30790589 DOI: 10.1016/j.yjmcc.2019.02.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 02/12/2019] [Accepted: 02/16/2019] [Indexed: 12/23/2022]
Abstract
p53 is a guardian of the genome that protects against carcinogenesis. There is accumulating evidence that p53 is activated with aging. Such activation has been reported to contribute to various age-associated pathologies, but its role in vascular dysfunction is largely unknown. The aim of this study was to investigate whether activation of endothelial p53 has a pathological effect in relation to endothelial function. We established endothelial p53 loss-of-function and gain-of-function models by breeding endothelial-cell specific Cre mice with floxed Trp53 or floxed Mdm2/Mdm4 mice, respectively. Then we induced diabetes by injection of streptozotocin. In the diabetic state, endothelial p53 expression was markedly up-regulated and endothelium-dependent vasodilatation was significantly impaired. Impairment of vasodilatation was significantly ameliorated in endothelial p53 knockout (EC-p53 KO) mice, and deletion of endothelial p53 also significantly enhanced the induction of angiogenesis by ischemia. Conversely, activation of endothelial p53 by deleting Mdm2/Mdm4 reduced both endothelium-dependent vasodilatation and ischemia-induced angiogenesis. Introduction of p53 into human endothelial cells up-regulated the expression of phosphatase and tensin homolog (PTEN), thereby reducing phospho-eNOS levels. Consistent with these results, the beneficial impact of endothelial p53 deletion on endothelial function was attenuated in EC-p53 KO mice with an eNOS-deficient background. These results show that endothelial p53 negatively regulates endothelium-dependent vasodilatation and ischemia-induced angiogenesis, suggesting that inhibition of endothelial p53 could be a novel therapeutic target in patients with metabolic disorders.
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Affiliation(s)
- Masataka Yokoyama
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Ayako Nagasawa
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Department of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan; Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Takayuki Wakasugi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yuka Hayashi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Ryutaro Ikegami
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yusuke Ota
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Sho Okada
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Marcus Fruttiger
- Institute of Ophthalmology, University College London, London EC1V 9EL, UK
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Masanori Tsuchida
- Department of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan.
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30
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Hemshekhar M, Choi KYG, Mookherjee N. Host Defense Peptide LL-37-Mediated Chemoattractant Properties, but Not Anti-Inflammatory Cytokine IL-1RA Production, Is Selectively Controlled by Cdc42 Rho GTPase via G Protein-Coupled Receptors and JNK Mitogen-Activated Protein Kinase. Front Immunol 2018; 9:1871. [PMID: 30158931 PMCID: PMC6104452 DOI: 10.3389/fimmu.2018.01871] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 07/30/2018] [Indexed: 12/20/2022] Open
Abstract
The human host defense peptide LL-37 promotes immune activation such as induction of chemokine production and recruitment of leukocytes. Conversely, LL-37 also mediates anti-inflammatory responses such as production of anti-inflammatory cytokines, e.g., IL-1RA, and the control of pro-inflammatory cytokines, e.g., TNF. The mechanisms regulating these disparate immunomodulatory functions of LL-37 are not completely understood. Rho GTPases are GTP-binding proteins that promote fundamental immune functions such as chemokine production and recruitment of leukocytes. However, recent studies have shown that distinct Rho proteins can both negatively and positively regulate inflammation. Therefore, we interrogated the role of Rho GTPases in LL-37-mediated immunomodulation. We demonstrate that LL-37-induced production of chemokines, e.g., GRO-α and IL-8 is largely dependent on Cdc42/Rac1 Rho GTPase, but independent of the Ras pathway. In contrast, LL-37-induced production of the anti-inflammatory cytokine IL-1RA is not dependent on either Cdc42/Rac1 RhoGTPase or Ras GTPase. Functional studies confirmed that LL-37-induced recruitment of leukocytes (monocytes and neutrophils) is also dependent on Cdc42/Rac1 RhoGTPase activity. We demonstrate that Cdc42/Rac1-dependent bioactivity of LL-37 involves G-protein-coupled receptors (GPCR) and JNK mitogen-activated protein kinase (MAPK) signaling, but not p38 or ERK MAPK signaling. We further show that LL-37 specifically enhances the activity of Cdc42 Rho GTPase, and that the knockdown of Cdc42 suppresses LL-37-induced production of chemokines without altering the peptide's ability to induce IL-1RA. This is the first study to demonstrate the role of Rho GTPases in LL-37-mediated responses. We demonstrate that LL-37 facilitates chemokine production and leukocyte recruitment engaging Cdc42/Rac1 Rho GTPase via GPCR and the JNK MAPK pathway. In contrast, LL-37-mediated anti-inflammatory cytokine IL-1RA production is independent of either Rho or Ras GTPase. The results of this study suggest that Cdc42 Rho GTPase may be the molecular switch that controls the opposing functions of LL-37 in the process of inflammation.
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Affiliation(s)
- Mahadevappa Hemshekhar
- Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Ka-Yee Grace Choi
- Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Neeloffer Mookherjee
- Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
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31
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Si S, Nakajima-Takagi Y, Iga T, Tsuji M, Hou L, Oshima M, Koide S, Saraya A, Yamazaki S, Takubo K, Kubota Y, Minamino T, Iwama A. Hematopoietic insults damage bone marrow niche by activating p53 in vascular endothelial cells. Exp Hematol 2018; 63:41-51.e1. [DOI: 10.1016/j.exphem.2018.04.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 04/21/2018] [Accepted: 04/22/2018] [Indexed: 01/01/2023]
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32
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Umbayev B, Masoud AR, Tsoy A, Alimbetov D, Olzhayev F, Shramko A, Kaiyrlykyzy A, Safarova Y, Davis T, Askarova S. Elevated levels of the small GTPase Cdc42 induces senescence in male rat mesenchymal stem cells. Biogerontology 2018; 19:287-301. [DOI: 10.1007/s10522-018-9757-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/16/2018] [Indexed: 01/21/2023]
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33
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Kayamori H, Shimizu I, Yoshida Y, Hayashi Y, Suda M, Ikegami R, Katsuumi G, Wakasugi T, Minamino T. Amlodipine Inhibits Vascular Cell Senescence and Protects Against Atherogenesis Through the Mechanism Independent of Calcium Channel Blockade. Int Heart J 2018; 59:607-613. [PMID: 29681573 DOI: 10.1536/ihj.17-265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Vascular cells have a finite lifespan and eventually enter irreversible growth arrest called cellular senescence. We have previously suggested that vascular cell senescence contributes to the pathogenesis of human atherosclerosis. Amlodipine is a mixture of two enantiomers, one of which (S- enantiomer) has L-type channel blocking activity, while the other (R+ enantiomer) shows ~1000-fold weaker channel blocking activity than S- enantiomer and has other unknown effects. It has been reported that amlodipine inhibits the progression of atherosclerosis in humans, but the molecular mechanism of this beneficial effect remains unknown. Apolipoprotein E-deficient mice on a high-fat diet were treated with amlodipine, its R+ enantiomer or vehicle for eight weeks. Compared with vehicle treatment, both amlodipine and the R+ enantiomer significantly reduced the number of senescent vascular cells and inhibited plaque formation to a similar extent. Expression of the pro-inflammatory molecule interleukin-1β was markedly upregulated in vehicle-treated mice, but was inhibited to a similar extent by treatment with amlodipine or the R+ enantiomer. Likewise, activation of p53 (a critical inducer of senescence) was markedly suppressed by treatment with amlodipine or the R+ enantiomer. These results suggest that amlodipine inhibits vascular cell senescence and protects against atherogenesis at least partly by a mechanism that is independent of calcium channel blockade.
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Affiliation(s)
- Hiromi Kayamori
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences.,Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences.,Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences
| | - Yuka Hayashi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Ryutaro Ikegami
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Takayuki Wakasugi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences
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34
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Yu S, Mao C, Yu J, Qi X, Wang J, Lu H. A study of the key genes and inflammatory signaling pathways involved in HLA-B27-associated acute anterior uveitis families. Int J Mol Med 2018; 42:259-269. [PMID: 29620146 PMCID: PMC5979938 DOI: 10.3892/ijmm.2018.3596] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 02/21/2018] [Indexed: 12/13/2022] Open
Abstract
The present study was conducted to investigate the key genes and the inflammatory signaling pathways involved in HLA-B27-associated acute anterior uveitis (AAU) families. Four families with HLA-B27-positive AAU patients and their HLA-B27-positive blood relatives were included in the study. Peripheral blood monocytes were isolated from the subjects and stimulated by lipopolysaccharides (LPS). Gene expression microarrays were used to identify the differentially expressed genes (DEGs), and the DEGs were analyzed by a range of bioinformatics-based techniques, including Gene Ontology (GO), Pathway analysis, Signal-Net analysis and Gene Relation Network (Gene-Rel-Net). Finally, ELISA was used to quantify cytokines in the supernatant. The gene expression microarrays identified 801 DEGs, including 349 upregulated and 452 downregulated genes. The GO analysis revealed several important functions, including metabolic, immune and inflammatory responses. The pathway analysis highlighted the enhanced activity of Staphylococcus aureus infection, chemokine and metabolic signaling pathways, as well as cytokine-to-cytokine receptor interactions. A total of 18 DEGs that were found to play critical roles by Signal-Net and Gene-Rel-Net and verified by quantitative polymerase chain reaction analysis were identified as key genes. In conclusion, monocytes from the AUU patients were more sensitive and exhibited a more prominent inflammatory response to stimulation by LPS compared with monocytes from healthy HLA-B27-positive blood relatives. These characterized DEGs may provide new evidence for the pathogenesis of AAU and help identify new therapeutic targets.
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Affiliation(s)
- Shuo Yu
- Department of Ophthalmology, Peking University Third Hospital, Beijing 100083, P.R. China
| | - Cui Mao
- Department of Ophthalmology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Jinyi Yu
- Department of Ophthalmology, Yantai Yuhuangding Hospital, Affiliated Hospital of Medical College, Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Xin Qi
- Department of Ophthalmology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Jing Wang
- Department of Ophthalmology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Hong Lu
- Department of Ophthalmology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
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Song Y, Yan Z. Exploring of the molecular mechanism of rhinitis via bioinformatics methods. Mol Med Rep 2017; 17:3014-3020. [PMID: 29257233 PMCID: PMC5783521 DOI: 10.3892/mmr.2017.8213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 10/06/2017] [Indexed: 12/27/2022] Open
Abstract
The aim of this study was to analyze gene expression profiles for exploring the function and regulatory network of differentially expressed genes (DEGs) in pathogenesis of rhinitis by a bioinformatics method. The gene expression profile of GSE43523 was downloaded from the Gene Expression Omnibus database. The dataset contained 7 seasonal allergic rhinitis samples and 5 non-allergic normal samples. DEGs between rhinitis samples and normal samples were identified via the limma package of R. The webGestal database was used to identify enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways of the DEGs. The differentially co-expressed pairs of the DEGs were identified via the DCGL package in R, and the differential co-expression network was constructed based on these pairs. A protein-protein interaction (PPI) network of the DEGs was constructed based on the Search Tool for the Retrieval of Interacting Genes database. A total of 263 DEGs were identified in rhinitis samples compared with normal samples, including 125 downregulated ones and 138 upregulated ones. The DEGs were enriched in 7 KEGG pathways. 308 differential co-expression gene pairs were obtained. A differential co-expression network was constructed, containing 212 nodes. In total, 148 PPI pairs of the DEGs were identified, and a PPI network was constructed based on these pairs. Bioinformatics methods could help us identify significant genes and pathways related to the pathogenesis of rhinitis. Steroid biosynthesis pathway and metabolic pathways might play important roles in the development of allergic rhinitis (AR). Genes such as CDC42 effector protein 5, solute carrier family 39 member A11 and PR/SET domain 10 might be also associated with the pathogenesis of AR, which provided references for the molecular mechanisms of AR.
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Affiliation(s)
- Yufen Song
- Department of Otolaryngology, The Third Central Hospital of Tianjin, Tianjin 300170, P.R. China
| | - Zhaohui Yan
- Department of Otolaryngology, The Third Central Hospital of Tianjin, Tianjin 300170, P.R. China
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Yang D, Zhang Y, Cheng Y, Hong L, Wang C, Wei Z, Cai Q, Yan R. High Expression of Cell Division Cycle 42 Promotes Pancreatic Cancer Growth and Predicts Poor Outcome of Pancreatic Cancer Patients. Dig Dis Sci 2017; 62:958-967. [PMID: 28181096 DOI: 10.1007/s10620-017-4451-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 01/10/2017] [Indexed: 01/04/2023]
Abstract
BACKGROUND Cell division cycle 42 (CDC42), an important member of the Rho family, is overexpressed in various human cancers. However, its expression and role in pancreatic cancer (PC) are not well understood. AIM The present study was designed to investigate the expression patterns and underlying cellular mechanisms of CDC42 in PC. METHODS First, immunohistochemical analysis, quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting were performed to detect CDC42 expression in clinical pancreatic carcinoma and adjacent tissues. Second, differential expression of CDC42 between PC cells and normal cells was evaluated by qRT-PCR and Western blotting. Third, the correlation between CDC42 expression as well as clinicopathological characteristics and patient survival was analyzed. Finally, CDC42 was knocked down to examine its role both in vivo and in vitro. RESULTS The results showed significantly increased CDC42 expression in pancreatic tumor tissues compared with adjacent normal tissues, as revealed by qRT-PCR, Western blotting and immunostaining. Compared to PanC-1 cells, CDC42 expression was downregulated in HPDE6-C7 cells as shown by qRT-PCR and Western blotting. High CDC42 expression was observed in 69.2% (83/120) of pancreatic adenocarcinoma patients and was significantly associated with tumor differentiation (p = 0.013), median tumor size (p = 0.005), tumor infiltration (pT stage, p = 0.04), lymph nodal status (pN stage, p = 0.044) and TNM staging (p = 0.003). Multivariate Cox regression analysis revealed CDC42 expression to be an independent predictor of survival of PC patients (HR 3.0, 95% CI 1.60-5.61, p = 0.001). Finally, we found that CDC42 promoted the proliferation of PanC-1 cells both in vivo and in vitro. CONCLUSIONS Our findings reveal that CDC42 might play an important role in promoting PC development, and the findings suggest that CDC42 might serve as a potential prognostic indicator of PC.
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Affiliation(s)
- Dejun Yang
- Department of Gastrointestinal Surgery, Shanghai Changzheng Hospital, Second Military Medical University, 415 FengYang Road, Shanghai, 200003, People's Republic of China
| | - Yu Zhang
- Department of Gastrointestinal Surgery, Shanghai Changzheng Hospital, Second Military Medical University, 415 FengYang Road, Shanghai, 200003, People's Republic of China
| | - Yajun Cheng
- Department of Gastrointestinal Surgery, Shanghai Changzheng Hospital, Second Military Medical University, 415 FengYang Road, Shanghai, 200003, People's Republic of China
| | - Liang Hong
- Outpatient Department, Yichuan Community Health Service Center, 43 Lishan Road, Shanghai, 200065, People's Republic of China
| | - Changming Wang
- Department of Gastrointestinal Surgery, Shanghai Changzheng Hospital, Second Military Medical University, 415 FengYang Road, Shanghai, 200003, People's Republic of China
| | - Ziran Wei
- Department of Gastrointestinal Surgery, Shanghai Changzheng Hospital, Second Military Medical University, 415 FengYang Road, Shanghai, 200003, People's Republic of China
| | - Qingping Cai
- Department of Gastrointestinal Surgery, Shanghai Changzheng Hospital, Second Military Medical University, 415 FengYang Road, Shanghai, 200003, People's Republic of China.
| | - Ronglin Yan
- Department of Gastrointestinal Surgery, Shanghai Changzheng Hospital, Second Military Medical University, 415 FengYang Road, Shanghai, 200003, People's Republic of China.
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Wang J, Yue D, Chen X, Wei Z, Lu W, Wu D. Common carotid artery dissection caused by radiotherapy: A case report. Mol Clin Oncol 2016; 5:475-477. [PMID: 27699045 DOI: 10.3892/mco.2016.990] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 07/15/2016] [Indexed: 11/06/2022] Open
Abstract
In the present study, a case of acute cerebral infarction with radiation-induced carotid artery dissection is reported. Carotid artery dissection is generally asymptomatic at the early stages. Due to the non-specific clinical manifestations of carotid artery dissection, a detailed inquiry of the past history of a patient has a critical role in making a diagnosis of radiation-induced common carotid artery dissection. Onset of acute ischemic stroke is the predominant manifestation, and for patients with a history of head-and-neck radiotherapy, dissection should be considered. The condition may progress rapidly, and result in a poor prognosis. Therefore, a correct early diagnosis and initiation of appropriate therapy may lead to rapid recovery, and influence the overall prognosis.
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Affiliation(s)
- Jiayan Wang
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, P.R. China
| | - Dandan Yue
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, P.R. China
| | - Xin Chen
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, P.R. China
| | - Zhenyu Wei
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, P.R. China
| | - Wenmei Lu
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, P.R. China
| | - Danhong Wu
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, P.R. China
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Nazari-Shafti TZ, Cooke JP. Telomerase Therapy to Reverse Cardiovascular Senescence. Methodist Debakey Cardiovasc J 2016; 11:172-5. [PMID: 26634025 DOI: 10.14797/mdcj-11-3-172] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Cellular senescence of endothelial cells plays an important role in the development of vascular lesions that ultimately lead to an atherosclerotic plaque. This review focuses on the age-related changes of endothelial and vascular smooth muscle cells that contribute to vascular disease and discusses potential new targets that could rejuvenate the vascular system and thereby prevent or delay atherosclerosis.
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Affiliation(s)
- Timo Z Nazari-Shafti
- Houston Methodist Research Institute, Houston Methodist Hospital, Houston, Texas
| | - John P Cooke
- Houston Methodist Research Institute, Houston Methodist Hospital, Houston, Texas
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39
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Helm A, Lee R, Durante M, Ritter S. The Influence of C-Ions and X-rays on Human Umbilical Vein Endothelial Cells. Front Oncol 2016; 6:5. [PMID: 26835420 PMCID: PMC4718996 DOI: 10.3389/fonc.2016.00005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 01/04/2016] [Indexed: 12/21/2022] Open
Abstract
Damage to the endothelium of blood vessels, which may occur during radiotherapy, is discussed as a potential precursor to the development of cardiovascular disease. We thus chose human umbilical vein endothelial cells as a model system to examine the effect of low- and high-linear energy transfer (LET) radiation. Cells were exposed to 250 kV X-rays or carbon ions (C-ions) with the energies of either 9.8 MeV/u (LET = 170 keV/μm) or 91 MeV/u (LET = 28 keV/μm). Subculture of cells was performed regularly up to 46 days (~22 population doublings) post-irradiation. Immediately after exposure, cells were seeded for the colony forming assay. Additionally, at regular intervals, mitochondrial membrane potential (MMP) (JC-1 staining) and cellular senescence (senescence-associated β-galactosidase staining) were assessed. Cytogenetic damage was investigated by the micronucleus assay and the high-resolution multiplex fluorescence in situ hybridization (mFISH) technique. Analysis of radiation-induced damage shortly after exposure showed that C-ions are more effective than X-rays with respect to cell inactivation or the induction of cytogenetic damage (micronucleus assay) as observed in other cell systems. For 9.8 and 91 MeV/u C-ions, relative biological effectiveness values of 2.4 and 1.5 were obtained for cell inactivation. At the subsequent time points, the number of micronucleated cells decreased to the control level. Analysis of chromosomal damage by mFISH technique revealed aberrations frequently involving chromosome 13 irrespective of dose or radiation quality. Disruption of the MMP was seen only a few days after exposure to X-rays or C-ions. Cellular senescence was not altered by radiation at any time point investigated. Altogether, our data indicate that shortly after exposure C-ions were more effective in damaging endothelial cells than X-rays. However, late damage to endothelial cells was not found for the applied conditions and endpoints.
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Affiliation(s)
- Alexander Helm
- Department of Biophysics, GSI Helmholtz Centre for Heavy Ion Research , Darmstadt , Germany
| | - Ryonfa Lee
- Department of Biophysics, GSI Helmholtz Centre for Heavy Ion Research , Darmstadt , Germany
| | - Marco Durante
- Department of Biophysics, GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany; Department of Condensed Matter Physics, Technical University of Darmstadt, Darmstadt, Germany
| | - Sylvia Ritter
- Department of Biophysics, GSI Helmholtz Centre for Heavy Ion Research , Darmstadt , Germany
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40
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Liu S, Uppal H, Demaria M, Desprez PY, Campisi J, Kapahi P. Simvastatin suppresses breast cancer cell proliferation induced by senescent cells. Sci Rep 2015; 5:17895. [PMID: 26658759 PMCID: PMC4677323 DOI: 10.1038/srep17895] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Accepted: 11/04/2015] [Indexed: 12/11/2022] Open
Abstract
Cellular senescence suppresses cancer by preventing the proliferation of damaged cells, but senescent cells can also promote cancer though the pro-inflammatory senescence-associated secretory phenotype (SASP). Simvastatin, an HMG-coA reductase inhibitor, is known to attenuate inflammation and prevent certain cancers. Here, we show that simvastatin decreases the SASP of senescent human fibroblasts by inhibiting protein prenylation, without affecting the senescent growth arrest. The Rho family GTPases Rac1 and Cdc42 were activated in senescent cells, and simvastatin reduced both activities. Further, geranylgeranyl transferase, Rac1 or Cdc42 depletion reduced IL-6 secretion by senescent cells. We also show that simvastatin mitigates the effects of senescent conditioned media on breast cancer cell proliferation and endocrine resistance. Our findings identify a novel activity of simvastatin and mechanism of SASP regulation. They also suggest that senescent cells, which accumulate after radio/chemo therapy, promote endocrine resistance in breast cancer and that simvastatin might suppress this resistance.
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Affiliation(s)
- Su Liu
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | | | - Marco Demaria
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Pierre-Yves Desprez
- Buck Institute for Research on Aging, Novato, CA 94945, USA.,California Pacific Medical Center, Research Institute, San Francisco, CA 94107, USA
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA 94945, USA.,Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Pankaj Kapahi
- Buck Institute for Research on Aging, Novato, CA 94945, USA
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Cheng SL, Ramachandran B, Behrmann A, Shao JS, Mead M, Smith C, Krchma K, Bello Arredondo Y, Kovacs A, Kapoor K, Brill LM, Perera R, Williams BO, Towler DA. Vascular smooth muscle LRP6 limits arteriosclerotic calcification in diabetic LDLR-/- mice by restraining noncanonical Wnt signals. Circ Res 2015; 117:142-56. [PMID: 26034040 DOI: 10.1161/circresaha.117.306712] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 05/28/2015] [Indexed: 11/16/2022]
Abstract
RATIONALE Wnt signaling regulates key aspects of diabetic vascular disease. OBJECTIVE We generated SM22-Cre;LRP6(fl/fl);LDLR(-/-) mice to determine contributions of Wnt coreceptor low-density lipoprotein receptor-related protein 6 (LRP6) in the vascular smooth muscle lineage of male low-density lipoprotein receptor-null mice, a background susceptible to diet (high-fat diet)-induced diabetic arteriosclerosis. METHODS AND RESULTS As compared with LRP6(fl/fl);LDLR(-/-) controls, SM22-Cre;LRP6(fl/fl);LDLR(-/-) (LRP6-VKO) siblings exhibited increased aortic calcification on high-fat diet without changes in fasting glucose, lipids, or body composition. Pulse wave velocity (index of arterial stiffness) was also increased. Vascular calcification paralleled enhanced aortic osteochondrogenic programs and circulating osteopontin (OPN), a matricellular regulator of arteriosclerosis. Survey of ligands and Frizzled (Fzd) receptor profiles in LRP6-VKO revealed upregulation of canonical and noncanonical Wnts alongside Fzd10. Fzd10 stimulated noncanonical signaling and OPN promoter activity via an upstream stimulatory factor (USF)-activated cognate inhibited by LRP6. RNA interference revealed that USF1 but not USF2 supports OPN expression in LRP6-VKO vascular smooth muscle lineage, and immunoprecipitation confirmed increased USF1 association with OPN chromatin. ML141, an antagonist of cdc42/Rac1 noncanonical signaling, inhibited USF1 activation, osteochondrogenic programs, alkaline phosphatase, and vascular smooth muscle lineage calcification. Mass spectrometry identified LRP6 binding to protein arginine methyltransferase (PRMT)-1, and nuclear asymmetrical dimethylarginine modification was increased with LRP6-VKO. RNA interference demonstrated that PRMT1 inhibits OPN and TNAP, whereas PRMT4 supports expression. USF1 complexes containing the histone H3 asymmetrically dimethylated on Arg-17 signature of PRMT4 are increased with LRP6-VKO. Jmjd6, a demethylase downregulated with LRP6 deficiency, inhibits OPN and TNAP expression, USF1: histone H3 asymmetrically dimethylated on Arg-17 complex formation, and transactivation. CONCLUSIONS LRP6 restrains vascular smooth muscle lineage noncanonical signals that promote osteochondrogenic differentiation, mediated in part via USF1- and arginine methylation-dependent relays.
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Affiliation(s)
- Su-Li Cheng
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Bindu Ramachandran
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Abraham Behrmann
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Jian-Su Shao
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Megan Mead
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Carolyn Smith
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Karen Krchma
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Yoanna Bello Arredondo
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Attila Kovacs
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Kapil Kapoor
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Laurence M Brill
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Ranjan Perera
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Bart O Williams
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.)
| | - Dwight A Towler
- From the Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Cardiovascular Pathobiology, Orlando, FL (S.-L.C., B.R., A.B., M.M., C.S., Y.B.A., K.K., L.M.B., R.P., D.A.T.); MD Anderson Cancer Center, Cancer Biology, Houston, TX (J.-S.S.); Washington University, Department of Medicine, St. Louis, MO (K.K., A.K.); and Van Andel Research Institute, Department of Cancer and Cell Biology, Grand Rapids, MI (B.O.W.).
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Wang G, Liu K, Li Y, Yi W, Yang Y, Zhao D, Fan C, Yang H, Geng T, Xing J, Zhang Y, Tan S, Yi D. Endoplasmic reticulum stress mediates the anti-inflammatory effect of ethyl pyruvate in endothelial cells. PLoS One 2014; 9:e113983. [PMID: 25470819 PMCID: PMC4254754 DOI: 10.1371/journal.pone.0113983] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 11/02/2014] [Indexed: 12/16/2022] Open
Abstract
Ethyl pyruvate (EP) is a simple aliphatic ester of the metabolic intermediate pyruvate that has been demonstrated to be a potent anti-inflammatory agent in a variety of in vivo and in vitro model systems. However, the protective effects and mechanisms underlying the actions of EP against endothelial cell (EC) inflammatory injury are not fully understood. Previous studies have confirmed that endoplasmic reticulum stress (ERS) plays an important role in regulating the pathological process of EC inflammation. In this study, our aim was to explore the effects of EP on tumor necrosis factor-α (TNF-α)-induced inflammatory injury in human umbilical vein endothelial cells (HUVECs) and to explore the role of ERS in this process. TNF-α treatment not only significantly increased the adhesion of monocytes to HUVECs and inflammatory cytokine (sICAM1, sE-selectin, MCP-1 and IL-8) production in cell culture supernatants but it also increased ICAM and MMP9 protein expression in HUVECs. TNF-α also effectively increased the ERS-related molecules in HUVECs (GRP78, ATF4, caspase12 and p-PERK). EP treatment effectively reversed the effects of the TNF-α-induced adhesion of monocytes on HUVECs, inflammatory cytokines and ERS-related molecules. Furthermore, thapsigargin (THA, an ERS inducer) attenuated the protective effects of EP against TNF-α-induced inflammatory injury and ERS. The PERK siRNA treatment not only inhibited ERS-related molecules but also mimicked the protective effects of EP to decrease TNF-α-induced inflammatory injury. In summary, we have demonstrated for the first time that EP can effectively reduce vascular endothelial inflammation and that this effect at least in part depends on the attenuation of ERS.
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Affiliation(s)
- Ge Wang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi′an 710032, China
- Department of Cardiovascular Surgery, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou Medical University, 268 Yanling Road, Guangzhou 510507, China
| | - Kan Liu
- School of Basic Medical Sciences, The Fourth Military Medical University, 169 Changle West Road, Xi′an 710032, China
| | - Yue Li
- Department of Air Logistics, The 463rd Hospital of PLA, 46 Xiaoheyan Road, Shenyang 110042, China
| | - Wei Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi′an 710032, China
| | - Yang Yang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi′an 710032, China
| | - Dajun Zhao
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi′an 710032, China
| | - Chongxi Fan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi′an 710038, China
| | - Honggang Yang
- Department of Cardiovascular Surgery, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou Medical University, 268 Yanling Road, Guangzhou 510507, China
| | - Ting Geng
- Department of Cardiovascular Surgery, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou Medical University, 268 Yanling Road, Guangzhou 510507, China
| | - Jianzhou Xing
- Department of Cardiovascular Surgery, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou Medical University, 268 Yanling Road, Guangzhou 510507, China
| | - Yu Zhang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi′an 710032, China
| | - Songtao Tan
- Department of Cardiovascular Surgery, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou Medical University, 268 Yanling Road, Guangzhou 510507, China
- * E-mail: (DY); (ST)
| | - Dinghua Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi′an 710032, China
- * E-mail: (DY); (ST)
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