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Zehrfeld N, Abelmann M, Benz S, Zippel CL, Beider S, Kramer E, Seeliger T, Sogkas G, Gödecke V, Ahrenstorf G, Armbruster FP, Skripuletz T, Witte T, Derda AA, Sonnenschein K, Ernst D. Primary Sjögren's syndrome independently promotes premature subclinical atherosclerosis. RMD Open 2024; 10:e003559. [PMID: 38663882 PMCID: PMC11043759 DOI: 10.1136/rmdopen-2023-003559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
OBJECTIVES Cardiovascular comorbidities are common in patients with autoimmune diseases. This study investigates the extent of subclinical atherosclerosis in patients with primary Sjögren's syndrome (pSS). Correlations with clinical factors such as organ involvement (OI) or disease activity were analysed and oxLDL antibodies (oxLDL ab) were measured as potential biomarkers of vascular damage. METHODS Patients with pSS were consecutively included from the rheumatology outpatient clinic. Age- and sex-matched controls were recruited (2:1 ratio). Data collection was performed by a standardised questionnaire and Doppler ultrasound to evaluate the plaque extent and carotid intima-media thickness (cIMT). Propensity score matching included all cardiovascular risk (CVR) factors and corresponding laboratory markers. RESULTS Data were available for 299 participants (199 pSS/100 controls), aged 59.4 years (50.6-65.0), 19.1% male. After matching, the pSS cohort had greater cIMT (p<0.001) and plaque extent (OR=1.82; 95% CI 1.14 to 2.95). Subgroup analyses of patients with pSS revealed that OI was associated with increased cIMT (p=0.025) and increased plaque occurrence compared with patients without OI (OR=1.74; 95% CI 1.02 to 3.01). OxLDL ab tended to be lower in patients with plaque (p=0.052). Correlations of higher Oxidized Low Density Lipoprotein (oxLDL) ab with EULAR Sjögren's Syndrome Disease Activity Index (p<0.001) and anti-Sjögren's-syndrome-related antigen A autoantibodies (SSA/Ro antibodies) (p=0.026) were observed. CONCLUSIONS Subclinical atherosclerosis occurs earlier and more severely in patients with pSS. The difference in cIMT between pSS and controls seems mainly driven by patients with OI, suggesting that this subgroup is particularly at risk. OxLDL ab might protect against atherosclerotic progression in patients with pSS. CVR stratification and preventive medications such as Hydroxymethylglutaryl-CoA (HMG-CoA) reductase inhibitors should be discussed and further longitudinal studies are needed.
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Affiliation(s)
- Nadine Zehrfeld
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Malin Abelmann
- Cardiology & Angiology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Sabrina Benz
- Faculty of Social Sciences, University of Mannheim, Mannheim, Germany
| | - Clara Luisa Zippel
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Sonja Beider
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Emelie Kramer
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Tabea Seeliger
- Neurology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Georgios Sogkas
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Vega Gödecke
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Gerrit Ahrenstorf
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | | | | | - Torsten Witte
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Anselm Arthur Derda
- Cardiology & Angiology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | | | - Diana Ernst
- Rheumatology & Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
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Chintapula U, Chikate T, Sahoo D, Kieu A, Guerrero Rodriguez ID, Nguyen KT, Trott D. Immunomodulation in age-related disorders and nanotechnology interventions. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1840. [PMID: 35950266 PMCID: PMC9840662 DOI: 10.1002/wnan.1840] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 05/19/2022] [Accepted: 06/01/2022] [Indexed: 01/31/2023]
Abstract
Recently, the aging population has increased exponentially around the globe bringing more challenges to improve quality of life in those populations while reducing the economic burden on healthcare systems. Aging is associated with changes in the immune system culminating in detrimental effects such as immune dysfunction, immunosenescence, and chronic inflammation. Age-related decline of immune functions is associated with various pathologies including cardiovascular, autoimmune, neurodegenerative, and infectious diseases to name a few. Conventional treatment addresses the onset of age-related diseases by early detection of risk factors, administration of vaccines as preventive care, immunomodulatory treatment, and other dietary supplements. However, these approaches often come with systemic side-effects, low bioavailability of therapeutic agents, and poor outcomes seen in the elderly. Recent innovations in nanotechnology have led to the development of novel biomaterials/nanomaterials, which explore targeted drug delivery and immunomodulatory interactions in vivo. Current nanotechnology-based immunomodulatory approaches that have the potential to be used as therapeutic interventions for some prominent age-related diseases are discussed here. Finally, we explore challenges and future aspects of nanotechnology in the treatments of age-related disorders to improve quality of life in the elderly. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Cardiovascular Disease Therapeutic Approaches and Drug Discovery > Nanomedicine for Neurological Disease Therapeutic Approaches and Drug Discovery > Emerging Technologies.
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Affiliation(s)
- Uday Chintapula
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, USA
- Joint Bioengineering Program, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Tanmayee Chikate
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, USA
| | - Deepsundar Sahoo
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, USA
| | - Amie Kieu
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, USA
| | | | - Kytai T. Nguyen
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, USA
- Joint Bioengineering Program, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Daniel Trott
- Department of Kinesiology, University of Texas at Arlington, Arlington, Texas, USA
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Sauriasari R, Zulfa AI, Sekar AP, Azmi NU, Tan XW, Matsuura E. Role of urinary H2O2, 8-iso-PGF2α, and serum oxLDL/β2GP1 complex in the diabetic kidney disease. PLoS One 2022; 17:e0263113. [PMID: 35381015 PMCID: PMC8982868 DOI: 10.1371/journal.pone.0263113] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 01/13/2022] [Indexed: 11/19/2022] Open
Abstract
Oxidant species is reported as a major determinant in the pathophysiology of diabetic kidney disease. However, reactive oxygen species (ROS) formation in the initial phase and progressing phase of diabetic kidney disease remains unclear. Therefore, we conducted this study to find out what ROS and their modified product are associated with eGFR in type 2 diabetes mellitus (T2DM) patients. A cross-sectional study was performed on 227 T2DM patients. The study subjects were divided into three groups based on their eGFR stage (Group 1, eGFR > 89 ml/min/1.73 m2; Group 2, eGFR = 60-89 ml/min/1.73 m2; and Group 3, eGFR < 60 ml/min/1.73 m2). Enzyme-linked immunosorbent assay (ELISA) was used to measure serum oxLDL/β2GPI complex and urinary 8-iso-PGF2α, while ferrous ion oxidation xylenol orange method 1 (FOX-1) was used to measure urinary hydrogen peroxide (H2O2). H2O2 significantly decreased across the groups, whereas OxLDL/β2GPI complex increased, but not significant, and there was no trend for 8-iso-PGF2α. Consistently, in the total study population, only H2O2 showed correlation with eGFR (r = 0.161, p = 0.015). Multiple linear regression analysis showed that significant factors for increased eGFR were H2O2, diastolic blood pressure, and female. Whereas increased systolic blood pressure and age were significant factors affecting the decrease of eGFR. We also found that urinary H2O2 had correlation with serum oxLDL/β2GPI complex in total population. This finding could lead to further research on urinary H2O2 for early detection and research on novel therapies of diabetic kidney disease.
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Affiliation(s)
- Rani Sauriasari
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
- * E-mail:
| | | | | | | | - Xian Wen Tan
- Department of Cell Chemistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Eiji Matsuura
- Department of Cell Chemistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
- Collaborative Research Center (OMIC), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
- Neutron Therapy Research Center, Okayama University, Okayama, Japan
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dos Santos ÍGD, de Oliveira Mendes TA, Silva GAB, Reis AMS, Monteiro-Vitorello CB, Schaker PDC, Herai RH, Fabotti ABC, Coutinho LL, Jorge EC. Didelphis albiventris: an overview of unprecedented transcriptome sequencing of the white-eared opossum. BMC Genomics 2019; 20:866. [PMID: 31730444 PMCID: PMC6858782 DOI: 10.1186/s12864-019-6240-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 10/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The white-eared opossum (Didelphis albiventris) is widely distributed throughout Brazil and South America. It has been used as an animal model for studying different scientific questions ranging from the restoration of degraded green areas to medical aspects of Chagas disease, leishmaniasis and resistance against snake venom. As a marsupial, D. albiventris can also contribute to the understanding of the molecular mechanisms that govern the different stages of organogenesis. Opossum joeys are born after only 13 days, and the final stages of organogenesis occur when the neonates are inside the pouch, depending on lactation. As neither the genome of this opossum species nor its transcriptome has been completely sequenced, the use of D. albiventris as an animal model is limited. In this work, we sequenced the D. albiventris transcriptome by RNA-seq to obtain the first catalogue of differentially expressed (DE) genes and gene ontology (GO) annotations during the neonatal stages of marsupial development. RESULTS The D. albiventris transcriptome was obtained from whole neonates harvested at birth (P0), at 5 days of age (P5) and at 10 days of age (P10). The de novo assembly of these transcripts generated 85,338 transcripts. Approximately 30% of these transcripts could be mapped against the amino acid sequences of M. domestica, the evolutionarily closest relative of D. albiventris to be sequenced thus far. Among the expressed transcripts, 2077 were found to be DE between P0 and P5, 13,780 between P0 and P10, and 1453 between P5 and P10. The enriched GO terms were mainly related to the immune system, blood tissue development and differentiation, vision, hearing, digestion, the CNS and limb development. CONCLUSIONS The elucidation of opossum transcriptomes provides an out-group for better understanding the distinct characteristics associated with the evolution of mammalian species. This study provides the first transcriptome sequences and catalogue of genes for a marsupial species at different neonatal stages, allowing the study of the mechanisms involved in organogenesis.
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Affiliation(s)
- Íria Gabriela Dias dos Santos
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais Brazil
| | | | - Gerluza Aparecida Borges Silva
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais Brazil
| | - Amanda Maria Sena Reis
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais Brazil
| | | | - Patricia Dayane Carvalho Schaker
- Departamento de Genética, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, São Paulo Brazil
| | - Roberto Hirochi Herai
- Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba, Paraná, Brazil
| | | | - Luiz Lehmann Coutinho
- Departamento de Zootecnia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, São Paulo Brazil
| | - Erika Cristina Jorge
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais Brazil
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Innate Immune Dysregulation in the Development of Cardiovascular Disease in Lupus. Curr Rheumatol Rep 2019; 21:46. [DOI: 10.1007/s11926-019-0842-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Xie L, Lin H, Wang C. Elevation of serum oxLDL/β2-GPI complexes was correlated with diabetic microvascular complications in Type 2 diabetes mellitus patients. J Clin Lab Anal 2018; 33:e22676. [PMID: 30259578 DOI: 10.1002/jcla.22676] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND High levels of oxLDL/β2-GPI complexes might be a consequence of LDL atherogenic modification mediated by oxidative stress. We aimed to determine whether the levels of serum oxLDL/β2-GPI complexes were correlated with diabetic microvascular complications in type 2 diabetes mellitus (T2DM) patients. METHODS Levels of oxLDL/β2-GPI complexes, oxLDL, routine lipid/lipoprotein parameters were measured in 100 healthy controls, 128 T2DM patients without any microvascular complications, and 172 T2DM patients with microvascular complications. Spearman's correlation, multivariable linear regression logistic regression analysis, and receiver operating characteristic (ROC) curve were performed. RESULTS Levels of serum oxLDL/β2-GPI complexes and oxLDL were significantly higher in T2DM patients with microvascular complications (oxLDL/β2-GPI complexes: 1.10 ± 0.18 U/mL; oxLDL: 48.12 ± 7.24 mmol/L) than those in T2DM patients without microvascular complications (oxLDL/β2-GPI complexes: 0.98 ± 0.16 U/mL; oxLDL: 41.45 ± 6.81 mmol/L) and controls (oxLDL/β2-GPI complexes: 0.79 ± 0.15 U/mL; oxLDL: 27.85 ± 5.32 mmol/L). Variables that remained significantly associated with oxLDL/β2-GPI complexes were oxLDL (β = 0.568, P < 0.001), TC (β = 0.312, P = 0.013) and microvascular complications (β = 0.205, P = 0.027), which accounted for 58.3% of the variation of the level of oxLDL/β2-GPI complexes in T2DM patients (R2 = 0.583). Logistic regression analysis demonstrated that elevation of oxLDL/β2-GPI complexes (OR = 3.14, 95% CI: 1.04-9.46, P = 0.042) and oxLDL levels (OR = 3.02, 95% CI: 1.16-7.83, P = 0.023) were independently associated with occurrence of microvascular complications. Cutoff value of oxLDL/β2-GPI for the presence of microvascular complications was 1.05 U/mL, and AUC area of ROC curve was 0.783 (95%CI: 0.713-0.853), yielding a sensitivity of 86.8% and specificity of 64.9%. CONCLUSIONS Elevation of serum oxLDL/β2-GPI complexes was associated with microvascular complications in T2DM patients.
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Affiliation(s)
- Lianzhi Xie
- Laboratory Department, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Hui Lin
- Laboratory Department, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Caihong Wang
- Endocrinology Department, The First Affiliated Hospital of Xiamen University, Xiamen, China
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Ames PRJ, Di Girolamo G, D'Andrea G, Lopez LR, Gaeta G, Iannaccone L, Maraglione M. Predictive Value of Oxidized Low-Density Lipoprotein/β 2-Glycoprotein-I Complexes (oxLDL/β 2GPI) in Nonautoimmune Atherothrombosis. Clin Appl Thromb Hemost 2018; 24:1050-1055. [PMID: 29669439 PMCID: PMC6714739 DOI: 10.1177/1076029618767752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Lipid oxidation is a definite feature of atherosclerosis, and oxidized low-density lipoprotein (oxLDL) is not only highly immunogenic but toxic to several cell types. Beta-2-glycoprotein-I (β2GPI) dampens oxLDL toxicity by forming binary oxLDL/β2GPI complexes. We evaluated whether circulating oxLDL/β2GPI complexes are associated to atherosclerosis-related events (ARE) and to venous thromboembolism (VTE). METHODS In a cross-sectional case-control study, cases were (a) 57 consecutive patients (male/female [M/F] 33/24, mean age 57 [10] years) attending a thrombosis unit for ARE (myocardial infarction [MI] n = 20, peripheral vascular disease n = 7, and ischemic strokes n = 30); (b) 52 consecutive patients (M/F 22/30, mean age 55 [17] years) attending the same unit for unprovoked (VTE); (c) normal controls comprised 90 participants (M/F 35/55, mean age 41 [15] years); and (d) oxLDL/β2GPI complexes were measured by immunoassay and resulting levels divided into quartiles. RESULTS The odds ratio (OR) of ARE was greater in the fourth and second quartiles than in the first quartile (8.5 and 6.0, respectively); the OR of developing MI was greatest in the fourth quartile (17.8). By multivariable analysis with age, sex, smoking, lipid status, statin, and ARE phenotypes as independent variables and oxLDL/β2GPI as the dependent variable, only MI predicted oxLDL/β2GPI ( P < .0001). CONCLUSIONS OxLDL/β2GPI may be regarded as a marker of ARE, in particular of MI.
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Affiliation(s)
- Paul R J Ames
- 1 Immune Response & Vascular Disease Unit, CEDOC, NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Giuseppe Di Girolamo
- 2 Department of Clinical and Experimental Medicine, Medical Genetics, University of Foggia, Foggia, Italy
| | - Giovanna D'Andrea
- 2 Department of Clinical and Experimental Medicine, Medical Genetics, University of Foggia, Foggia, Italy
| | - Luis R Lopez
- 3 Medical Department, Corgenix, Inc., Broomfield, CO, USA
| | | | | | - Maurizio Maraglione
- 2 Department of Clinical and Experimental Medicine, Medical Genetics, University of Foggia, Foggia, Italy
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Zhang L, Wu Y, Qiu L, Liu Y, Li Q. Elevated Levels of Serum β2-Glycoprotein I/Oxidized Low-Density Lipoprotein Complexes Are Associated with Cerebral Infarction in Patients with Type 2 Diabetes Mellitus. Med Sci Monit 2018; 24:1232-1240. [PMID: 29489742 PMCID: PMC5841189 DOI: 10.12659/msm.907078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background To determine whether the levels of β2-glycoprotein I (β2-GPI)/oxidized low-density lipoprotein (oxLDL) complexes are correlated with cerebral infarction in patients with type 2 diabetes mellitus (T2DM). Material/Methods The levels of β2-GPI/oxLDL complexes, oxLDL, routine lipid/lipoprotein parameters, oxidative stress molecules, and inflammatory factors were measured in 78 healthy controls, 82 diabetics without cerebral infarction, and 79 diabetics with cerebral infarction. Correlation, multiple linear regression, and logistic regression analyses were performed. Results Serum β2-GPI/oxLDL complexes and oxLDL levels were significantly elevated in cerebral infarction in patients with T2DM (β2-GPI/oxLDL: 1.09±0.16 U/mL; oxLDL: 47.83±8.17 mmol/L) compared with T2DM without cerebral infarction (β2-GPI/oxLDL: 0.95±0.13 U/mL; oxLDL: 41.24±7.12 mmol/L) and healthy controls (β2-GPI/oxLDL: 0.81±0.12 U/mL; oxLDL: 27.97±4.57 mmol/L). The levels of β2-GPI/oxLDL complex in lacunar infarction (1.16±0.15 U/ml) were significantly higher than atherothrombotic infarction (1.07±0.19 U/ml) and cardioembolic infarction (1.00±0.23 U/ml). In all patients with T2DM, the β2-GPI/oxLDL levels were positively correlated with total cholesterol (r=0.474, p=0.001) and triglycerides (r=0.431, p=0.003). oxLDL levels were positively correlated with total cholesterol (r=0.445, p=0.002). The logistic regression analysis indicated that elevated β2-GPI/oxLDL and oxLDL levels were independently associated with diabetic cerebral infarction. Conclusions Elevated levels of serum β2-GPI/oxLDL complexes are associated with cerebral infarction in patients with T2DM, especially in those with lacunar infarction.
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Affiliation(s)
- Limei Zhang
- Department of Endocrinology, Second Affiliated Hospital of Harbin Medical University Heilongjiang, Harbin, Heilongjiang, China (mainland)
| | - Yanhui Wu
- Department of Endocrinology, Second Affiliated Hospital of Harbin Medical University Heilongjiang, Harbin, Heilongjiang, China (mainland)
| | - Lili Qiu
- Department of Endocrinology, Second Affiliated Hospital of Harbin Medical University Heilongjiang, Harbin, Heilongjiang, China (mainland)
| | - Yanhong Liu
- Department of Clinical Laboratory Medicine, Second Affiliated Hospital of Harbin Medical University Heilongjiang, Harbin, Heilongjiang, China (mainland)
| | - Qiang Li
- Department of Endocrinology, Second Affiliated Hospital of Harbin Medical University Heilongjiang, Harbin, Heilongjiang, China (mainland)
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Serum oxLDL-β2GPI complex reflects metabolic syndrome and inflammation in adipose tissue in obese. Int J Obes (Lond) 2017; 42:405-411. [PMID: 29081508 DOI: 10.1038/ijo.2017.260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 10/03/2017] [Accepted: 10/08/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND/OBJECTIVES OxLDL-β2GPI complex has been suggested to have a role in the development of atherosclerosis and other inflammatory diseases. The aim of this study was to investigate the possible association of circulating oxLDL-β2GPI with obesity-induced inflammatory state of adipose tissue and related comorbidities as metabolic syndrome development. SUBJECTS/METHODS Two cohorts of subjects were examined in the study. Cohort I: 36 women with wide range of body mass index (17-48 kg m-2) and metabolic status (with or without metabolic syndrome (MS); cohort II: 20 obese women undergoing a dietary intervention (DI) consisting of 1-month very-low-calorie diet, and 5 months of weight-stabilization period. Serum levels of oxLDL-β2GPI were measured by enzyme-linked immunosorbent assay. Insulin sensitivity was evaluated by hyperinsulinemic-euglycemic clamp and homeostasis model assessment of insulin resistance. mRNA expression of macrophage markers was determined in both subcutaneous (SAT) and visceral (VAT) adipose tissue in cohort I and in SAT in cohort II. RESULTS Serum oxLDL-β2GPI levels were increased in obese subjects with MS compared to lean or obese without MS (obese with MS: 26.6±5.0 vs lean: 15.17±1.97, P<0.001; vs obese without MS: 16.36±2.89, P<0.05). Serum oxLDL-β2GPI correlated with MS indices (glucose, high-density lipoprotein, triglyceride and ureic acid) and with mRNA expression of macrophage markers in VAT. Weight-reducing DI decreased serum oxLDL-β2GPI levels together with lipid parameters and the mRNA expression of inflammatory markers in SAT. CONCLUSIONS OxLDL-β2GPI seems to be an important marker of visceral adipose tissue inflammation and possibly a factor contributing to insulin resistance and metabolic syndrome development in obese patients.
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Cevik O, Baykal AT, Sener A. Platelets Proteomic Profiles of Acute Ischemic Stroke Patients. PLoS One 2016; 11:e0158287. [PMID: 27336623 PMCID: PMC4919045 DOI: 10.1371/journal.pone.0158287] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 06/13/2016] [Indexed: 12/20/2022] Open
Abstract
Platelets play a crucial role in the pathogenesis of stroke and antiplatelet agents exist for its treatment and prevention. Through the use of LC-MS based protein expression profiling, platelets from stroke patients were analyzed and then correlated with the proteomic analyses results in the context of this disease. This study was based on patients who post ischemic stroke were admitted to hospital and had venous blood drawn within 24 hrs of the incidence. Label-free protein expression analyses of the platelets' tryptic digest was performed in triplicate on a UPLC-ESI-qTOF-MS/MS system and ProteinLynx Global Server (v2.5, Waters) was used for tandem mass data extraction. The peptide sequences were searched against the reviewed homo sapiens database (www.uniprot.org) and the quantitation of protein variation was achieved through Progenesis LC-MS software (V4.0, Nonlinear Dynamics). These Label-free differential proteomics analysis of platelets ensured that 500 proteins were identified and 83 of these proteins were found to be statistically significant. The differentially expressed proteins are involved in various processes such as inflammatory response, cellular movement, immune cell trafficking, cell-to-cell signaling and interaction, hematological system development and function and nucleic acid metabolism. The expressions of myeloperoxidase, arachidonate 12-Lipoxygenase and histidine-rich glycoprotein are involved in cellular metabolic processes, crk-like protein and ras homolog gene family member A involved in cell signaling with vitronectin, thrombospondin 1, Integrin alpha 2b, and integrin beta 3 involved in cell adhesion. Apolipoprotein H, immunoglobulin heavy constant gamma 1 and immunoglobulin heavy constant gamma 3 are involved in structural, apolipoprotein A-I, and alpha-1-microglobulin/bikunin precursor is involved in transport, complement component 3 and clusterin is involved in immunity proteins as has been discussed. Our data provides an insight into the proteins that are involved in the platelets' activation response during ischemic stroke. It could be argued that this study lays the foundation for future mechanistic studies.
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Affiliation(s)
- Ozge Cevik
- Cumhuriyet University, Faculty of Pharmacy, Department of Biochemistry, Sivas, Turkey
- Marmara University, Faculty of Pharmacy, Department of Biochemistry, Istanbul, Turkey
- * E-mail:
| | - Ahmet Tarik Baykal
- Acibadem University, School of Medicine, Department of Medical Biochemistry, Istanbul, Turkey
| | - Azize Sener
- Marmara University, Faculty of Pharmacy, Department of Biochemistry, Istanbul, Turkey
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Zhang J, Wang D, He S. Roles of antibody against oxygenized low density lipoprotein in atherosclerosis: recent advances. Int J Clin Exp Med 2015; 8:11922-11929. [PMID: 26550105 PMCID: PMC4612790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 06/24/2015] [Indexed: 06/05/2023]
Abstract
Atherosclerosis is a chronic immune inflammatory disease. Atherosclerosis and relevant disease are threatening human life and health. Oxygenized low density lipoprotein (oxLDL) is a molecular basis in the pathogenesis of atherosclerosis and able to induce inflammation, stimulate immune system and interfere with lipid metabolism in the occurrence and development of atherosclerosis. Antibody against oxLDL has been an important molecule in the immune related pathogenesis of atherosclerosis. In available studies on atherosclerosis, antibody against oxLDL has been a focus, but how oxLDL acts to affect the atherosclerosis and relevant diseases, whether oxLDL is protective or detrimental, and whether oxLDL acts in different ways at different stages of atherosclerosis are still unclear. This paper focuses on the role of antibody against oxLDL in the atherosclerosis and relevant diseases, and summarizes the advances in this field, aiming to provide new clue and new methods for the therapy of atherosclerosis.
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Affiliation(s)
- Jing Zhang
- Second Xiangya Hospital, Central South UniversityChangsha 410011, China
| | - Daxin Wang
- Second Xiangya Hospital, Central South UniversityChangsha 410011, China
- Department of Cardiology, Northern Jiangsu People’s Hospital, Medical College of Yangzhou UniversityYangzhou 225001, China
| | - Shenghu He
- Department of Cardiology, Northern Jiangsu People’s Hospital, Medical College of Yangzhou UniversityYangzhou 225001, China
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