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He X, Zhang J, Huang M, Wang J, Yang S, Yu X, Xu Y, Yang W. Serum apolipoprotein H determines ferroptosis resistance by modulating cellular lipid composition. Cell Death Dis 2024; 15:718. [PMID: 39353906 PMCID: PMC11445452 DOI: 10.1038/s41419-024-07099-2] [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: 05/16/2024] [Revised: 09/07/2024] [Accepted: 09/23/2024] [Indexed: 10/03/2024]
Abstract
Ferroptosis is a regulated cell death process dependent on iron, triggered by the accumulation of lipid peroxidation. The environmental context significantly impacts cellular sensitivities to ferroptosis. Serum, constituting the extracellular fluid composition in vivo, provides crucial environmental biomolecules. In this study, we investigated the influence of sera on ferroptosis induction, pinpointing the serum protein apolipoprotein H (APOH) as a pivotal inhibitor of ferroptosis. Moreover, we elucidated that APOH suppresses ferroptosis by activating the phosphoinositide 3-kinase (PI3K)-AKT-sterol regulatory element-binding proteins (SREBPs) pathway, thereby elevating stearoyl-CoA desaturase (SCD) levels and augmenting cellular monounsaturated fatty acid-containing phospholipids (MUFA-PLs). Furthermore, ApoHinfer, the peptide derivative of the active region of APOH, mimics its ferroptosis inhibitory activity. Our findings underscore the critical role of serum protein APOH in the inhibition of ferroptosis and indicates potential therapeutic applications in treating cancer and diseases associated with ferroptosis.
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Affiliation(s)
- Xiang He
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiahui Zhang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Masha Huang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Wang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Simin Yang
- Core Facility of Basic Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiang Yu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingjie Xu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen Yang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Marasco V, Fusani L, Haubensak P, Pola G, Smith S. Brain gene expression reveals pathways underlying nocturnal migratory restlessness. Sci Rep 2024; 14:22420. [PMID: 39341882 PMCID: PMC11439032 DOI: 10.1038/s41598-024-73033-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 09/12/2024] [Indexed: 10/01/2024] Open
Abstract
Migration is one of the most extreme and energy demanding life history strategies to have evolved in the animal kingdom. In birds, champions of long-distance migrations, the seasonal emergence of the migratory phenotype is characterised by rapid physiological and metabolic remodelling, including substantial accumulation of fat stores and increases in nocturnality. The molecular underpinnings and brain adaptations to seasonal migrations remain poorly understood. Here, we exposed Common quails (Coturnix coturnix) to controlled changes in day length to simulate southward autumn migration, and then blocked the photoperiod until birds entered the non-migratory wintering phase. We first performed de novo RNA-Sequencing from selected brain samples (hypothalamus) collected from birds at a standardised time at night, either in a migratory state (when restlessness was highest and at their body mass peak), or in a non-migratory state and conducted differential gene expression and functional pathways analyses. We found that the migratory state was associated with up-regulation of a few, yet functionally well defined, gene expression networks implicated in fat trafficking, protein and carbohydrate metabolism. Further analyses that focused on candidate genes (apolipoprotein H or APOH, lysosomal associated membrane protein-2 or LAMP2) from samples collected during the day or night across the entire study population suggested differences in the expression of these genes depending on the time of the day with the largest expression levels being found in the migratory birds sampled at night. We also found that expression of APOH was positively associated with levels of nocturnal activity in the migratory birds; such an association was absent within the non-migratory birds. Our results provide novel experimental evidence revealing that hypothalamic changes in expression of apolipoprotein pathways, which regulate the circulatory transport of lipids, are likely key regulatory activators of nocturnal migratory movements. Our study paves the way for performing deeper functional investigations on seasonal molecular remodelling underlying the development of the migratory phenotype.
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Affiliation(s)
- Valeria Marasco
- Department of Interdisciplinary Life Sciences, Research Institute of Wildlife Ecology, University of Veterinary Medicine Vienna, Savoyenstraße 1a, Vienna, 1160, Austria.
| | - Leonida Fusani
- Department of Interdisciplinary Life Sciences, Konrad Lorenz Institute of Ethology, University of Veterinary Medicine Vienna, Savoyenstraße 1a, Vienna, A-1160, Austria
- Department of Behavioural and Cognitive Biology, University of Vienna, Djerassiplatz 1, Vienna, 1030, Austria
| | - Patricia Haubensak
- Department of Interdisciplinary Life Sciences, Konrad Lorenz Institute of Ethology, University of Veterinary Medicine Vienna, Savoyenstraße 1a, Vienna, A-1160, Austria
| | - Gianni Pola
- Istituto Sperimentale Zootecnico per la Sicilia, via Roccazzo 85, 90135, Palermo, Italy
| | - Steve Smith
- Department of Interdisciplinary Life Sciences, Konrad Lorenz Institute of Ethology, University of Veterinary Medicine Vienna, Savoyenstraße 1a, Vienna, A-1160, Austria
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Mourino-Alvarez L, Juarez-Alia C, Sastre-Oliva T, Perales-Sánchez I, Hernandez-Fernandez G, Chicano-Galvez E, Peralbo-Molina Á, Madruga F, Blanco-Lopez E, Tejerina T, Barderas MG. Dysregulation of Lipid Metabolism Serves as A Link Between Alzheimer's and Cardiovascular Disease, As Witnessed in A Cross-Sectional Study. Aging Dis 2024:AD.2024.0434. [PMID: 39012677 DOI: 10.14336/ad.2024.0434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 05/31/2024] [Indexed: 07/17/2024] Open
Abstract
Cardiovascular risk factors and established cardiovascular disease (CVD) increase the risk of suffering dementia of the Alzheimer's type (DAT). Here, we set out to define specific molecular profiles of CVD in patients with DAT to better understand its relationship, to unravel the mechanisms underlying the high risk of developing DAT in CVD patients and to define new markers of early disease. Plasma samples from patients with DAT, with and without CVD, were analyzed through a multiomics approach, with integration of metabolomics and proteomics datasets using the OmicsNet web-based tool. Metabolomics results showed an enrichment in lipids and lipid-like molecules. Similarly, the most significant cluster identified through proteomics was formed by 5 proteins related to lipoprotein and cholesterol metabolism. After integration and functional enrichment, glycerolipid metabolism, fatty acid degradation and sphingolipid metabolism were among the most significant functions. Finally, differential expression of ABCA1 and APOH proteins was verified, in an independent cohort also including controls and patients with CVD alone. Both proteins positively correlated with phospho-Tau (181), a classical hallmark of DAT. Different molecular profiles exist in patients with DAT, with and without CVD, with exacerbated alterations in patients in which DAT and CVD co-exist. This information may help to define biomarkers like ABCA1 and APOH that identify patients with cardiovascular dysfunction that are at high risk of developing DAT. Such markers will allow more personalized interventions to be selected, a further step towards precision medicine for individuals whose molecular profiles indicate a distinct response to the same management strategies.
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Affiliation(s)
- Laura Mourino-Alvarez
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM, 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, IDISCAM, 45071 Toledo, Spain
| | - Cristina Juarez-Alia
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM, 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, IDISCAM, 45071 Toledo, Spain
| | - Tamara Sastre-Oliva
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM, 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, IDISCAM, 45071 Toledo, Spain
| | - Inés Perales-Sánchez
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM, 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, IDISCAM, 45071 Toledo, Spain
| | - German Hernandez-Fernandez
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM, 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, IDISCAM, 45071 Toledo, Spain
| | - Eduardo Chicano-Galvez
- IMIBIC Mass Spectrometry and Molecular Imaging Unit, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba (UCO), Córdoba, Spain
| | - Ángela Peralbo-Molina
- IMIBIC Mass Spectrometry and Molecular Imaging Unit, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba (UCO), Córdoba, Spain
| | - Felipe Madruga
- Departament of Geriatrics, Hospital Virgen del Valle, SESCAM, Toledo, Spain
| | - Emilio Blanco-Lopez
- Department of Cardiology, Ciudad Real General University Hospital, Ciudad Real, Spain
| | - Teresa Tejerina
- Department of Pharmacology, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - María G Barderas
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM, 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, IDISCAM, 45071 Toledo, Spain
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Bjørkum AA, Griebel L, Birkeland E. Human serum proteomics reveals a molecular signature after one night of sleep deprivation. SLEEP ADVANCES : A JOURNAL OF THE SLEEP RESEARCH SOCIETY 2024; 5:zpae042. [PMID: 39131770 PMCID: PMC11310596 DOI: 10.1093/sleepadvances/zpae042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 05/31/2024] [Indexed: 08/13/2024]
Abstract
Study Objectives Sleep deprivation is highly prevalent and caused by conditions such as night shift work or illnesses like obstructive sleep apnea. Compromised sleep affects cardiovascular-, immune-, and neuronal systems. Recently, we published human serum proteome changes after a simulated night shift. This pilot proteomic study aimed to further explore changes in human blood serum after 6 hours of sleep deprivation at night. Methods Human blood serum samples from eight self-declared healthy females were analyzed using Orbitrap Eclipse mass spectrometry (MS-MS) and high-pressure liquid chromatography. We used a within-participant design, in which the samples were taken after 6 hours of sleep at night and after 6 hours of sleep deprivation the following night. Systems biological databases and bioinformatic software were used to analyze the data and comparative analysis were done with other published sleep-related proteomic datasets. Results Out of 494 proteins, 66 were found to be differentially expressed proteins (DEPs) after 6 hours of sleep deprivation. Functional enrichment analysis revealed the associations of these DEPs with several biological functions related to the altered regulation of cellular processes such as platelet degranulation and blood coagulation, as well as associations with different curated gene sets. Conclusions This study presents serum proteomic changes after 6 hours of sleep deprivation, supports previous findings showing that short sleep deprivation affects several biological processes, and reveals a molecular signature of proteins related to pathological conditions such as altered coagulation and platelet function, impaired lipid and immune function, and cell proliferation. Data are available via ProteomeXchange with identifier PXD045729. This paper is part of the Genetic and other molecular underpinnings of sleep, sleep disorders, and circadian rhythms including translational approaches Collection.
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Affiliation(s)
- Alvhild Alette Bjørkum
- Department of Safety, Chemistry and Biomedical Laboratory Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Leandra Griebel
- Department of Safety, Chemistry and Biomedical Laboratory Sciences, Western Norway University of Applied Sciences, Bergen, Norway
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology, Zurich, Switzerland
| | - Even Birkeland
- The Proteomics Unit at The Department of Biomedicine, University of Bergen, Bergen, Norway
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Giriyappagoudar M, Vastrad B, Horakeri R, Vastrad C. Study on Potential Differentially Expressed Genes in Idiopathic Pulmonary Fibrosis by Bioinformatics and Next-Generation Sequencing Data Analysis. Biomedicines 2023; 11:3109. [PMID: 38137330 PMCID: PMC10740779 DOI: 10.3390/biomedicines11123109] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 12/24/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic progressive lung disease with reduced quality of life and earlier mortality, but its pathogenesis and key genes are still unclear. In this investigation, bioinformatics was used to deeply analyze the pathogenesis of IPF and related key genes, so as to investigate the potential molecular pathogenesis of IPF and provide guidance for clinical treatment. Next-generation sequencing dataset GSE213001 was obtained from Gene Expression Omnibus (GEO), and the differentially expressed genes (DEGs) were identified between IPF and normal control group. The DEGs between IPF and normal control group were screened with the DESeq2 package of R language. The Gene Ontology (GO) and REACTOME pathway enrichment analyses of the DEGs were performed. Using the g:Profiler, the function and pathway enrichment analyses of DEGs were performed. Then, a protein-protein interaction (PPI) network was constructed via the Integrated Interactions Database (IID) database. Cytoscape with Network Analyzer was used to identify the hub genes. miRNet and NetworkAnalyst databaseswereused to construct the targeted microRNAs (miRNAs), transcription factors (TFs), and small drug molecules. Finally, receiver operating characteristic (ROC) curve analysis was used to validate the hub genes. A total of 958 DEGs were screened out in this study, including 479 up regulated genes and 479 down regulated genes. Most of the DEGs were significantly enriched in response to stimulus, GPCR ligand binding, microtubule-based process, and defective GALNT3 causes HFTC. In combination with the results of the PPI network, miRNA-hub gene regulatory network and TF-hub gene regulatory network, hub genes including LRRK2, BMI1, EBP, MNDA, KBTBD7, KRT15, OTX1, TEKT4, SPAG8, and EFHC2 were selected. Cyclothiazide and rotigotinethe are predicted small drug molecules for IPF treatment. Our findings will contribute to identification of potential biomarkers and novel strategies for the treatment of IPF, and provide a novel strategy for clinical therapy.
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Affiliation(s)
- Muttanagouda Giriyappagoudar
- Department of Radiation Oncology, Karnataka Institute of Medical Sciences (KIMS), Hubballi 580022, Karnataka, India;
| | - Basavaraj Vastrad
- Department of Pharmaceutical Chemistry, K.L.E. Socitey’s College of Pharmacy, Gadag 582101, Karnataka, India;
| | - Rajeshwari Horakeri
- Department of Computer Science, Govt First Grade College, Hubballi 580032, Karnataka, India;
| | - Chanabasayya Vastrad
- Biostatistics and Bioinformatics, Chanabasava Nilaya, Bharthinagar, Dharwad 580001, Karnataka, India
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Jiang Y, Zhuang X, Zhang J, Li M, Du S, Tian J, Yuan Y, Ji G, Hu C. Clinical characterization and proteomic profiling of lean nonalcoholic fatty liver disease. Front Endocrinol (Lausanne) 2023; 14:1171397. [PMID: 38034020 PMCID: PMC10687542 DOI: 10.3389/fendo.2023.1171397] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 07/06/2023] [Indexed: 12/02/2023] Open
Abstract
Introduction Obesity has been historically associated with nonalcoholic fatty liver disease (NAFLD), but it can also occur in lean individuals. However, limited data is available on this special group. To investigate the clinical and proteomic characteristics of lean subjects with NAFLD, and to identify potential clinical variables and plasma proteins for diagnosing NAFLD in lean individuals, we collected clinical data from a large cohort of 2,236 subjects. Methods Diagnosis of NAFLD relied on detecting pronounced hepatic steatosis through abdominal ultrasonography. Participants were categorized into four groups based on body mass index: overweight NAFLD, overweight control, lean NAFLD, and lean control. Plasma proteomic profiling was performed on samples from 20 subjects in each group. The lean NAFLD group was compared to both lean healthy and obese NAFLD groups across all data. Results and discussion The results indicated that the lean NAFLD group exhibited intermediate metabolic profiles, falling between those of the lean healthy and overweight NAFLD groups. Proteomic profiling of plasma in lean subjects with or without NAFLD revealed 45 statistically significant changes in proteins, of which 37 showed high diagnostic value (AUC > 0.7) for lean NAFLD. These potential biomarkers primarily involved lipid metabolism, the immune and complement systems, and platelet degranulation. Furthermore, AFM, GSN, CFH, HGFAC, MMP2, and MMP9 have been previously associated with NAFLD or NAFLD-related factors such as liver damage, insulin resistance, metabolic syndromes, and extracellular homeostasis. Overall, lean individuals with NAFLD exhibit distinct clinical profiles compared to overweight individuals with NAFLD. Despite having worse metabolic profiles than their healthy counterparts, lean NAFLD patients generally experience milder systemic metabolic disturbances compared to obese NAFLD patients. Additionally, the plasma proteomic profile is significantly altered in lean NAFLD, highlighting the potential of differentially expressed proteins as valuable biomarkers or therapeutic targets for diagnosing and treating NAFLD in this population.
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Affiliation(s)
- Yuanye Jiang
- Department of Gastroenterology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoyu Zhuang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiaqi Zhang
- Department of Pharmacy, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Meng Li
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shengnan Du
- Department of Gastroenterology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiyun Tian
- Department of Gastroenterology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifu Yuan
- Department of Gastroenterology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guang Ji
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Cheng Hu
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Lee SH, Cho S, Lee JY, Hong JY, Kim S, Jeong MH, Kim WH. Identification of Potential Drug Targets for Antiplatelet Therapy Specifically Targeting Platelets of Old Individuals through Proteomic Analysis. Biomedicines 2023; 11:2944. [PMID: 38001945 PMCID: PMC10669211 DOI: 10.3390/biomedicines11112944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
Aging is a growing problem worldwide, and the prevalence and mortality of arterial and venous thromboembolism (VTE) are higher in the elderly than in the young population. To address this issue, various anticoagulants have been used. However, no evidence can confirm that antithrombotic agents are suitable for the elderly. Therefore, this study aims to investigate the platelet proteome of aged mice and identify antithrombotic drug targets specific to the elderly. Based on the proteome analysis of platelets from aged mice, 308 increased or decreased proteins were identified. Among these proteins, three targets were selected as potential antithrombotic drug targets. These targets are membrane proteins or related to platelet function and include beta-2-glycoprotein 1 (β2GP1, ApolipoproteinH (ApoH)), alpha-1-acid glycoprotein2 (AGP2, Orosomucoid-2 (Orm2)), and Ras-related protein (Rab11a).
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Affiliation(s)
- Seung Hee Lee
- Division of Cardiovascular Disease Research, Department of Chronic Disease Convergence Research, Korea National Institute of Health, Cheongju-si 28159, Republic of Korea; (S.C.)
| | | | | | | | | | | | - Won-Ho Kim
- Division of Cardiovascular Disease Research, Department of Chronic Disease Convergence Research, Korea National Institute of Health, Cheongju-si 28159, Republic of Korea; (S.C.)
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Feng J, Zheng N, Fan X, Li S, Jiang Y, Yi X, Yang H. Association of laxatives use with incident dementia and modifying effect of genetic susceptibility: a population-based cohort study with propensity score matching. BMC Geriatr 2023; 23:122. [PMID: 36870957 PMCID: PMC9985868 DOI: 10.1186/s12877-023-03854-w] [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: 12/01/2022] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Constipation was associated with incidence of dementia and cognitive decline. Laxatives are the mainstay of constipation management and are commonly used among older populations for both treatment and prevention of constipation. However, the association between use of laxatives and incident dementia, and whether laxatives use may modify the effect of genetic predisposition on dementia remains unclear. METHODS We applied 1:3 propensity score matching to balance the baseline characteristics of the laxative users versus non-users and to reduce potential confounders using multi-variates adjusted Cox hazards regression models. We categorized genetic risk into three groups (low, middle, and high) through a genetic risk score of common genetic variants. Information on laxatives use was assessed at baseline and categories into four varieties, including bulk forming laxatives, softeners and emollients, osmotic laxatives, and stimulant laxatives. RESULTS Of 486,994 participants, there were 14,422 laxatives users in UK Biobank. After propensity score matching, participants with use of laxatives (n = 14,422) and matched non-laxative (n = 43,266) exposed individuals were enrolled. Over follow-up to 15 years, there were 1377 participants developed dementia (539 for Alzheimer's disease, and 343 for vascular dementia). The use of laxatives had greater risk of dementia (HR, 1.72; 95% CI:1.54-1.92), Alzheimer's disease (HR, 1.36; 95% CI: 1.13-1.63), and vascular dementia (HR, 1.53; 95% CI: 1.23-1.92). Compared to non-laxative exposed participants, those with use of softeners and emollients drugs, stimulant laxatives, and osmotic laxatives were associated with 96% (HR, 1.96; 95 CI: 1.23-3.12; P = 0.005), 80% (HR, 1.80; 95% CI: 1.37-2.37; P < 0.001), and 107% (HR, 2.07; 95% CI: 1.47-2.92; P < 0.001) higher risk of developed incident dementia, respectively. In joint effect analysis, compared to participants with low/middle genetic susceptibility and non-laxatives use, the HR (95% CIs) of dementia was 4.10 (3.49-4.81) for those with high genetic susceptibility plus use of laxatives. There was an additive interaction between laxatives use and genetic susceptibility on dementia (RERI: 0.736, 95% CI: 0.127 to 1.246; AP: 0.180, 95% CI: 0.047 to 0.312). CONCLUSIONS Use of laxatives was associated with higher risk of dementia and modify the effect of genetic susceptibility on dementia. Our findings suggested that attention should be paid to the relationship between laxatives use and dementia, especially in people at high genetic susceptibility.
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Affiliation(s)
- Jiangtao Feng
- Department of Orthopedics, Tianjin NanKai Hospital, Tianjin, 300100, China
| | - Nan Zheng
- Department of Network Security and Informatization, Tianjin Medical University, Tianjin, 300070, China
| | - Xutong Fan
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical University, Qixiangtai Road 22, Heping District, Tianjin, 300070, China
| | - Shu Li
- School of Management, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Yuhan Jiang
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical University, Qixiangtai Road 22, Heping District, Tianjin, 300070, China
| | - Xianfu Yi
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical University, Qixiangtai Road 22, Heping District, Tianjin, 300070, China
| | - Hongxi Yang
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical University, Qixiangtai Road 22, Heping District, Tianjin, 300070, China. .,Department of Pharmacology, Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Qixiangtai Road 22, Heping District, Tianjin, 300070, China.
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Alur V, Raju V, Vastrad B, Vastrad C, Kavatagimath S, Kotturshetti S. Bioinformatics Analysis of Next Generation Sequencing Data Identifies Molecular Biomarkers Associated With Type 2 Diabetes Mellitus. Clin Med Insights Endocrinol Diabetes 2023; 16:11795514231155635. [PMID: 36844983 PMCID: PMC9944228 DOI: 10.1177/11795514231155635] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 01/19/2023] [Indexed: 02/23/2023] Open
Abstract
Background Type 2 diabetes mellitus (T2DM) is the most common metabolic disorder. The aim of the present investigation was to identify gene signature specific to T2DM. Methods The next generation sequencing (NGS) dataset GSE81608 was retrieved from the gene expression omnibus (GEO) database and analyzed to identify the differentially expressed genes (DEGs) between T2DM and normal controls. Then, Gene Ontology (GO) and pathway enrichment analysis, protein-protein interaction (PPI) network, modules, miRNA (micro RNA)-hub gene regulatory network construction and TF (transcription factor)-hub gene regulatory network construction, and topological analysis were performed. Receiver operating characteristic curve (ROC) analysis was also performed to verify the prognostic value of hub genes. Results A total of 927 DEGs (461 were up regulated and 466 down regulated genes) were identified in T2DM. GO and REACTOME results showed that DEGs mainly enriched in protein metabolic process, establishment of localization, metabolism of proteins, and metabolism. The top centrality hub genes APP, MYH9, TCTN2, USP7, SYNPO, GRB2, HSP90AB1, UBC, HSPA5, and SQSTM1 were screened out as the critical genes. ROC analysis provides prognostic value of hub genes. Conclusion The potential crucial genes, especially APP, MYH9, TCTN2, USP7, SYNPO, GRB2, HSP90AB1, UBC, HSPA5, and SQSTM1, might be linked with risk of T2DM. Our study provided novel insights of T2DM into genetics, molecular pathogenesis, and novel therapeutic targets.
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Affiliation(s)
- Varun Alur
- Department of Endocrinology, J.J.M
Medical College, Davanagere, Karnataka, India
| | - Varshita Raju
- Department of Obstetrics and
Gynecology, J.J.M Medical College, Davanagere, Karnataka, India
| | - Basavaraj Vastrad
- Department of Pharmaceutical Chemistry,
K.L.E. College of Pharmacy, Gadag, Karnataka, India
| | | | - Satish Kavatagimath
- Department of Pharmacognosy, K.L.E.
College of Pharmacy, Belagavi, Karnataka, India
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Pan Z, Du G, Li G, Wu D, Chen X, Geng Z. Apolipoprotein H: a novel regulator of fat accumulation in duck myoblasts. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2022; 64:1199-1214. [PMID: 36812035 PMCID: PMC9890340 DOI: 10.5187/jast.2022.e60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/07/2022] [Accepted: 07/09/2022] [Indexed: 12/14/2022]
Abstract
Apolipoprotein H (APOH) primarily engages in fat metabolism and inflammatory disease response. This study aimed to investigate the effects of APOH on fat synthesis in duck myoblasts (CS2s) by APOH overexpression and knockdown. CS2s overexpressing APOH showed enhanced triglyceride (TG) and cholesterol (CHOL) contents and elevated the mRNA and protein expression of AKT serine/threonine kinase 1 (AKT1), ELOVL fatty acid elongase 6 (ELOVL6), and acetyl-CoA carboxylase 1 (ACC1) while reducing the expression of protein kinase AMP-activated catalytic subunit alpha 1 (AMPK), peroxisome proliferator activated receptor gamma (PPARG), acyl-CoA synthetase long chain family member 1 (ACSL1), and lipoprotein lipase (LPL). The results showed that knockdown of APOH in CS2s reduced the content of TG and CHOL, reduced the expression of ACC1, ELOVL6, and AKT1, and increased the gene and protein expression of PPARG, LPL, ACSL1, and AMPK. Our results showed that APOH affected lipid deposition in myoblasts by inhibiting fatty acid beta-oxidation and promoting fatty acid biosynthesis by regulating the expression of the AKT/AMPK pathway. This study provides the necessary basic information for the role of APOH in fat accumulation in duck myoblasts for the first time and enables researchers to study the genes related to fat deposition in meat ducks in a new direction.
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Affiliation(s)
- Ziyi Pan
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Guoqing Du
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Guoyu Li
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Dongsheng Wu
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Xingyong Chen
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China,Corresponding author: Xingyong Chen,
College of Animal Science and Technology, Anhui Agricultural University, Hefei
230036, China. Tel: +86-15605510863, E-mail:
| | - Zhaoyu Geng
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China,Corresponding author: Xingyong Chen,
College of Animal Science and Technology, Anhui Agricultural University, Hefei
230036, China. Tel: +86-15605510863, E-mail:
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11
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The Potential Diagnostic Value of Immune-Related Genes in Interstitial Fibrosis and Tubular Atrophy after Kidney Transplantation. J Immunol Res 2022; 2022:7212852. [PMID: 35755170 PMCID: PMC9232312 DOI: 10.1155/2022/7212852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/29/2022] [Accepted: 05/11/2022] [Indexed: 12/02/2022] Open
Abstract
Background Inflammation within areas of interstitial fibrosis and tubular atrophy (IF/TA) is associated with kidney allograft failure. The aim of this study was to reveal new diagnostic markers of IF/TA based on bioinformatics analysis. Methods Raw data of IF/TA samples after kidney transplantation and control samples after kidney transplantation were extracted from the Gene Expression Omnibus (GEO) database (GSE76882 and GSE120495 datasets), and genes that were differentially expressed between the two groups (DEGs) were screened. Gene Set Enrichment Analysis (GSEA), ESTIMATE and single sample GSEA (ssGSEA), least absolute shrinkage and selection operator (LASSO) regression analysis, and competing endogenous RNA (ceRNA) network were used to analyze the data. Results The results of GSEA revealed that multiple immune-related pathways were enriched in the IF/TA group, and subsequent immune landscape analysis also showed that the IF/TA group had higher immune and stromal scores and up to 15 types of immune cells occupied them, such as B cells, cytotoxic cells, and T cells. LASSO regression analysis selected 6 (including ANGPTL3, APOH, LTF, FCGR2B, HLA-DQA2, and EGF) out of 14 DE-IRGs as diagnostic genes to construct a diagnostic model. Then, receiver operating characteristic (ROC) curve analysis showed the powerful diagnostic value of the model, and the area under the curve (AUC) of a single diagnostic gene was greater than 0.75. The results of ingenuity pathway analysis (IPA) also indicated that DEGs were involved in the immune system and kidney disease-related pathways. Finally, we found multiple miRNAs that could regulate diagnostic genes from the ceRNA network. Conclusion This study identified 6 IF/TA-related genes, which might be used as a new diagnosis model in the clinical practice.
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12
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Ekhzaimy AA, Masood A, Benabdelkamel H, Elhassan T, Musambil M, Alfadda AA. Plasma proteomics reveals an improved cardio-metabolic profile in patients with type 2 diabetes post-liraglutide treatment. Diab Vasc Dis Res 2022; 19:14791641221094322. [PMID: 35616478 PMCID: PMC9152203 DOI: 10.1177/14791641221094322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Diabetes mellitus is a chronic multisystem disease with a high global prevalence, including in Saudi Arabia. The Glucagon-like Peptide (GLP-1) receptor agonist liraglutide is known to lower glucose levels, reduce weight and improve cardiovascular outcome. However, mechanisms underlying the benefits of liraglutide treatment in patients with type 2 diabetes mellitus (T2DM) remain unclear. METHODS In the present study, a 2D-DIGE MALDI-TOF mass spectrometric approach combined with bioinformatics and network pathway analysis explore the plasma proteomic profile. The study involved 20 patients with T2DM with mean age of 54.4 ± 9.5 years and Hemoglobin A1c (HbA1c) between 8% and 11% (inclusive). RESULTS A statistically significant change (p < .006) was observed in HbA1c with no significant changes in body weight, renal function, or markers of dyslipidemia post-treatment with liraglutide. 2 D-DIGE gel analysis identified significant changes (⩾1.5-fold change, Analysis of variance (ANOVA), p ⩽ 0.05) in 72 proteins, (62 down and 10 up) in liraglutide pre-treatment compared to the post-treatment state. Proteins identified in our study were found to regulate metabolic processes including acute phase response proteins, enzymes, apolipoproteins with involvement of the inflammatory signaling pathways, NF-κB, AKT, and p38 MAPK. CONCLUSION Liraglutide treatment decreased levels of acute phase response that to reduce the systemic chronic inflammatory state and oxidative stress, and eventually improve the cardio-metabolic profile in these patients.
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Affiliation(s)
- Aishah A Ekhzaimy
- Department of Medicine, College of Medicine and King Saud Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Afshan Masood
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Hicham Benabdelkamel
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Tasnem Elhassan
- Department of Medicine, College of Medicine and King Saud Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Mohthash Musambil
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Assim A Alfadda
- Department of Medicine, College of Medicine and King Saud Medical City, King Saud University, Riyadh, Saudi Arabia
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Strategic Center for Diabetes Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Assim A Alfadda, Department of Medicine, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia.
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13
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Cheng Q, Yuan X, Lin S, Zhao Y, Wang H, Zhu F, Wang Y, Xu T, Wu J, Wang K, Zhang J, Sun X, Li C, Liang H, Fang L, Xue B. Serum proteome profiling reveals differentially expressed proteins between subjects with metabolically healthy obesity and nonalcoholic fatty liver disease. J Proteomics 2022; 260:104556. [DOI: 10.1016/j.jprot.2022.104556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/21/2022] [Accepted: 03/07/2022] [Indexed: 11/15/2022]
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14
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Li X, Wang L, Wang L, Feng Z, Peng C. Single-Cell Sequencing of Hepatocellular Carcinoma Reveals Cell Interactions and Cell Heterogeneity in the Microenvironment. Int J Gen Med 2021; 14:10141-10153. [PMID: 34992435 PMCID: PMC8711111 DOI: 10.2147/ijgm.s338090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 12/01/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is the main histological subtype of liver cancer, which has the characteristics of poor prognosis and high fatality rate. Single-cell sequencing can provide quantitative and unbiased characterization of cell heterogeneity by analyzing the molecular profile of the whole genome of thousands of single cells. Thus, the purpose of this study was to identify novel prognostic markers for HCC based on single-cell sequencing data. METHODS Single-cell sequencing of 21 HCC samples and 256 normal liver tissue samples in the GSE124395 dataset was collected from the Gene Expression Omnibus (GEO) database. The quality-controlled cells were grouped by unsupervised cluster analysis and identified the marker genes of each cell cluster. Hereafter, these cell clusters were annotated by singleR and CellMarker according to the expression patterns of the marker genes. Pseudotime analysis was performed to construct the trajectory of cell evolution and to define hub genes in the evolution process. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were used to explore the potential regulatory mechanism of hub genes in HCC. Next, the differential expression of hub genes and the correlation of the expression of these genes with patients' survival and diagnosis were investigated in The Cancer Genome Atlas (TCGA) database. RESULTS A total of 9 clusters corresponding to 9 cell types, including NKT cells, hepatocytes, endothelial cells, Kupffer cells, EPCAM+ cells, cancer cells, plasma cells (B cells), immature B cells, and myofibroblasts were identified. We screened 63 key genes related to cell differentiation through trajectory analysis, which were enriched in the process of coagulation. Ultimately, we identified 10 survival-related hub genes in the TCGA database, namely ALDOB, APOC3, APOH, CYP2E1, CYP3A4, GC, HRG, LINC01554, PDK4, and TXN. CONCLUSION In conclusion, ALDOB, APOC3, APOH, CYP2E1, CYP3A4, GC, HRG, LINC01554, PDK4, and TXN may serve as hub genes in the diagnosis and prognosis for HCC.
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Affiliation(s)
- Xinyao Li
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Lei Wang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Liusong Wang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Zanjie Feng
- Department of Biochemistry and Molecular Biology, Zunyi Medical University, Zunyi, People’s Republic of China
| | - Cijun Peng
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
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15
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Dynamic tracking and identification of tissue-specific secretory proteins in the circulation of live mice. Nat Commun 2021; 12:5204. [PMID: 34471136 PMCID: PMC8410947 DOI: 10.1038/s41467-021-25546-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 08/12/2021] [Indexed: 12/16/2022] Open
Abstract
Secretory proteins are an essential component of interorgan communication networks that regulate animal physiology. Current approaches for identifying secretory proteins from specific cell and tissue types are largely limited to in vitro or ex vivo models which often fail to recapitulate in vivo biology. As such, there is mounting interest in developing in vivo analytical tools that can provide accurate information on the origin, identity, and spatiotemporal dynamics of secretory proteins. Here, we describe iSLET (in situ Secretory protein Labeling via ER-anchored TurboID) which selectively labels proteins that transit through the classical secretory pathway via catalytic actions of Sec61b-TurboID, a proximity labeling enzyme anchored in the ER lumen. To validate iSLET in a whole-body system, we express iSLET in the mouse liver and demonstrate efficient labeling of liver secretory proteins which could be tracked and identified within circulating blood plasma. Furthermore, proteomic analysis of the labeled liver secretome enriched from liver iSLET mouse plasma is highly consistent with previous reports of liver secretory protein profiles. Taken together, iSLET is a versatile and powerful tool for studying spatiotemporal dynamics of secretory proteins, a valuable class of biomarkers and therapeutic targets. The in vivo identification of proteins secreted from a specific cell type or tissue remains challenging. Here, the authors develop a proximity labeling-based method to selectively label secreted proteins and combine it with proteomics to identify liver secretory proteins in mouse plasma.
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16
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Lee JS, Lee EJ, Yeom J, Oh JS, Hong S, Lee CK, Yoo B, Kim K, Kim YG. Urine β-2-glycoprotein 1 as a biomarker for diagnosis of systemic lupus erythematosus. Lupus 2021; 30:1306-1313. [PMID: 33966541 DOI: 10.1177/09612033211014268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The need for a biomarker with robust sensitivity and specificity in diagnosing systemic lupus erythematosus (SLE) remains unmet. Compared with blood samples, urine samples are more easily collected; thus, we aimed to identify such a biomarker based on urinary proteomics which could distinguish patients with SLE from healthy controls (HCs). METHODS Urine samples were collected from 76 SLE patients who visited rheumatology clinic in 2019 at Asan medical center and from 25 HCs. Urine proteins were analyzed using sequential windowed acquisition of all theoretical fragment ion spectra-mass spectrometry, and the candidate marker was confirmed by enzyme-linked immunosorbent assay (ELISA). Receiver operating characteristic curve analysis was used to determine the diagnostic value of the candidate biomarker. RESULTS Of 1157 proteins quantified, 153 were differentially expressed in urine samples from HCs. Among them were previously known markers including α-1-acid glycoprotein 1, α-2-HS-glycoprotein, ceruloplasmin, and prostaglandin-H2 D-isomerase. Moreover, the amount of β-2 glycoprotein (APOH) was increased in the urine of patients with SLE. The ELISA results also showed the level of urine APOH was higher in patients with SLE than in HCs and patients with rheumatoid arthritis. Moreover, the level was not different between SLE patients with and without nephritis. The urine APOH had an area under the curve value of 0.946 at a cut-off value of 228.53 ng/mg (sensitivity 91.5%, specificity 92.0%) for the diagnosis of SLE. CONCLUSION The results indicate that the urine APOH level can be an appropriate screening tool in a clinical setting when SLE is suspected.
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Affiliation(s)
- Jung Sun Lee
- Department of Internal Medicine, Seoul Veterans Hospital, Seoul, Korea
| | - Eun-Ju Lee
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jeonghun Yeom
- Clinical Proteomics Core Laboratory, Convergence Medicine Research Center, Asan Medical Center, Seoul, Korea
| | - Ji Seon Oh
- Department of Information Medicine, Asan Medical Center, Seoul, Korea
| | - Seokchan Hong
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang-Keun Lee
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Bin Yoo
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kyunggon Kim
- Clinical Proteomics Core Laboratory, Convergence Medicine Research Center, Asan Medical Center, Seoul, Korea
| | - Yong-Gil Kim
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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17
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Monjezi MR, Fouladseresht H, Farjadian S, Gharesi-Fard B, Khosropanah S, Doroudchi M. T Cell Proliferative Responses and IgG Antibodies to β2GPI in Patients with Diabetes and Atherosclerosis. Endocr Metab Immune Disord Drug Targets 2021; 21:495-503. [PMID: 32368987 DOI: 10.2174/1871530320666200505115850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 03/15/2020] [Accepted: 03/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetes increases the risk of myocardial infarction (MI) by 2 to 3 folds. Tlymphocytes play a role in atherosclerosis, which is the main pathology behind MI. Cellular immune responses to beta-2 glycoprotein I (β2GPI) are shown in carotid atherosclerosis. OBJECTIVE To investigate the self-reactive, β2GPI-specific T-lymphocytes in patients with and without diabetes and atherosclerosis. METHODS Collectively, 164 subjects with and without diabetes that underwent coronary angiography were divided into four groups based on their diabetes status and coronary stenosis. Group I=Diabetic with ≥50% stenosis: A+D+ (n=66); Group II=Non-diabetic with ≥50% stenosis, A+D- (n=39); Group III=Diabetic with <50% stenosis: A-D+ (n=28); and Group IV=Non-diabetic with <50% stenosis: AD- (n=31). All groups were evaluated for anti-β2GPI IgG antibody by ELISA method. Then, PBMCs were isolated from 18 subjects and were stimulated with β2GPI-derived peptides to assess their proliferation in accordance with their HLA-DRB1 alleles. RESULTS Mean β2GPI IgG levels were higher in groups with ≥50% stenosis (A+) compared to those with <50% stenosis (A-), (P=0.02). The co-presence of diabetes in A+ individuals increased mean β2GPI-specific IgG. Auto-reactive β2GPI-specific T cells were detected in the repertoire of T-lymphocytes in all groups. β2GPI-peptides showed promiscuous restriction by various HLADRB1. CONCLUSION β2GPI is the target of cellular and humoral immune responses in patients with atherosclerosis. Since the T cell responses but not antibodies were detectable in A-D+ and A-D- groups, it is reasonable to assume that cellular responses preceded the humoral responses. Post-translation modifications of β2GPI under oxidative and glycemic stresses may have increased the IgG levels in patients with diabetes. Finally, identification of antigens that trigger immuno-pathogenesis in atherosclerosis and diabetes may help the development of immunomodulation methods to prevent or treat these debilitating diseases.
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Affiliation(s)
- Mohammad R Monjezi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Fouladseresht
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shirin Farjadian
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Behrouz Gharesi-Fard
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahdad Khosropanah
- Department of Cardiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrnoosh Doroudchi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Wang N, Zhu F, Chen L, Chen K. Proteomics, metabolomics and metagenomics for type 2 diabetes and its complications. Life Sci 2018; 212:194-202. [DOI: 10.1016/j.lfs.2018.09.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/18/2018] [Accepted: 09/18/2018] [Indexed: 02/08/2023]
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19
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do Nascimento de Oliveira V, Lima-Neto ABM, van Tilburg MF, de Oliveira Monteiro-Moreira AC, Duarte Pinto Lobo M, Rondina D, Fernandes VO, Montenegro APDR, Montenegro RM, Guedes MIF. Proteomic analysis to identify candidate biomarkers associated with type 1 diabetes. Diabetes Metab Syndr Obes 2018; 11:289-301. [PMID: 29942143 PMCID: PMC6005324 DOI: 10.2147/dmso.s162008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Type 1 diabetes mellitus (DM1) is one of the most common chronic diseases observed during childhood. The incidence of DM1 is increasing worldwide, and there is currently no way to prevent or delay the onset or to cure the disease. Most diseases, including diabetes, stem from abnormalities in the functioning of proteins, and some studies have reported the expression of protein variation to be involved in the development of DM1. Thus, the aim of this study was to investigate the differential expression of serum proteins in patients with DM1. MATERIALS AND METHODS Serum of patients with DM1 (n=30) and healthy controls (n=30) was collected. A proteomic approach was used with depletion of albumin and immunoglobulin G chromatography on serum samples followed by data-independent, label-free mass spectrometric analysis. RESULTS A total of eight serum proteins were identified as being differentially expressed and involved in the immune system, lipid metabolism, and pathways of coagulation. DM1 was associated with the upregulation of six proteins: alpha-2-macroglobulin, apolipoprotein A-II, β2 glycoprotein I, Ig alpha-2 chain C region, alpha-1-microglobulin, and prothrombin. A total of two proteins were downregulated, including pregnancy zone protein and complement C4. CONCLUSION To the best of our knowledge, these findings show differential expression of proteins revealing new proteins that may be involved in the development and progression of diabetes.
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Affiliation(s)
- Valzimeire do Nascimento de Oliveira
- Collegiate Nutrition Science, Laboratory of Biotechnology and Molecular Biology, Ceará State University, Fortaleza, Ceará, Brazil
- Collegiate Biotechnology, Northeast Network of Biotechnology, Laboratory of Biotechnology and Molecular Biology, Ceará State University, Fortaleza, Ceará, Brazil
- Correspondence: Valzimeire do Nascimento de Oliveira, Av. Dr. Silas Munguba, 1700, Campus do Itaperi, bloco D, 1 andar, Sala 01, Laboratório de Biologia Molecular e Biotecnologia, Fortaleza, Ceará, Brazil, Tel +55 85 99991 3404, Email
| | | | - Maurício Fraga van Tilburg
- Collegiate Biotechnology, Northeast Network of Biotechnology, Laboratory of Biotechnology and Molecular Biology, Ceará State University, Fortaleza, Ceará, Brazil
| | | | | | - Davide Rondina
- School of Veterinary Science, Ceará State of University, Fortaleza, Ceará, Brazil
| | | | | | | | - Maria Izabel Florindo Guedes
- Collegiate Nutrition Science, Laboratory of Biotechnology and Molecular Biology, Ceará State University, Fortaleza, Ceará, Brazil
- Collegiate Biotechnology, Northeast Network of Biotechnology, Laboratory of Biotechnology and Molecular Biology, Ceará State University, Fortaleza, Ceará, Brazil
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20
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Dong S, Qi M, Wang Y, Chen L, Weaver JC, Krilis SA, Giannakopoulos B. β2GPI exerts an anti-obesity effect in female mice by inhibiting lipogenesis and promoting lipolysis. Oncotarget 2017; 8:92652-92666. [PMID: 29190946 PMCID: PMC5696212 DOI: 10.18632/oncotarget.21536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/12/2017] [Indexed: 02/01/2023] Open
Abstract
In humans, males compared to females have increased visceral adipose tissue which contributes to their increased risk of early death. Mice display analogous sexual diamorphism whereby females are protected from weight gain when fed a high fat diet compared to males. A role has recently been reported for β2-glycoprotein I, an abundant plasma protein, in healthy leanness in humans. In this study we investigated the role of β2-glycoprotein I in fat metabolism in male and female mice fed a normal chow or high fat diet. We have made a number of novel insights into factors contributing to sexual diamorphism in obesity. Female wild type mice are protected from obesity when fed a high fat diet due to down regulation of lipogenesis in the visceral adipose tissues. This down regulation is due to β2-glycoprotein I as female mice deficient in this protein have increased levels of lipogenesis enzymes in their visceral adipose tissues with an accompanying increase in weight compared to female wild type controls. Understanding female specific regulators of obesity may lead to sex specific anti-obesity therapies to address this major health problem.
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Affiliation(s)
- Shangwen Dong
- Department of Infectious Diseases, Immunology and Sexual Health and Department of Medicine, St George Hospital, University of New South Wales, New South Wales, Sydney, Australia.,Department of Cardiothoracic Surgery, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China
| | - Miao Qi
- Department of Infectious Diseases, Immunology and Sexual Health and Department of Medicine, St George Hospital, University of New South Wales, New South Wales, Sydney, Australia
| | - Ying Wang
- Department of Infectious Diseases, Immunology and Sexual Health and Department of Medicine, St George Hospital, University of New South Wales, New South Wales, Sydney, Australia.,Laboratory of Hormones and Development (Ministry of Health), Metabolic Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Liming Chen
- Laboratory of Hormones and Development (Ministry of Health), Metabolic Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - James Crofton Weaver
- Department of Cardiology, St George Hospital, New South Wales, Sydney, Australia
| | - Steven Antony Krilis
- Department of Infectious Diseases, Immunology and Sexual Health and Department of Medicine, St George Hospital, University of New South Wales, New South Wales, Sydney, Australia
| | - Bill Giannakopoulos
- Department of Infectious Diseases, Immunology and Sexual Health and Department of Medicine, St George Hospital, University of New South Wales, New South Wales, Sydney, Australia.,Department of Rheumatology, St George Hospital, New South Wales, Sydney, Australia
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Martin-Lorenzo M, Gonzalez-Calero L, Martinez PJ, Baldan-Martin M, Lopez JA, Ruiz-Hurtado G, de la Cuesta F, Segura J, Vazquez J, Vivanco F, Barderas MG, Ruilope LM, Alvarez-Llamas G. Immune system deregulation in hypertensive patients chronically RAS suppressed developing albuminuria. Sci Rep 2017; 7:8894. [PMID: 28827575 PMCID: PMC5566220 DOI: 10.1038/s41598-017-09042-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 07/19/2017] [Indexed: 12/22/2022] Open
Abstract
Albuminuria development in hypertensive patients is an indicator of higher cardiovascular (CV) risk and renal damage. Chronic renin-angiotensin system (RAS) suppression facilitates blood pressure control but it does not prevent from albuminuria development. We pursued the identification of protein indicators in urine behind albuminuria development in hypertensive patients under RAS suppression. Urine was collected from 100 patients classified in three groups according to albuminuria development: (a) patients with persistent normoalbuminuria; (b) patients developing de novo albuminuria; (c) patients with maintained albuminuria. Quantitative analysis was performed in a first discovery cohort by isobaric labeling methodology. Alterations of proteins of interest were confirmed by target mass spectrometry analysis in an independent cohort. A total of 2416 proteins and 1223 functional categories (coordinated protein responses) were identified. Immune response, adhesion of immune and blood cells, and phagocytosis were found significantly altered in patients with albuminuria compared to normoalbuminuric individuals. The complement system C3 increases, while Annexin A1, CD44, S100A8 and S100A9 proteins showed significant diminishment in their urinary levels when albuminuria is present. This study reveals specific links between immune response and controlled hypertension in patients who develop albuminuria, pointing to potential protein targets for novel and future therapeutic interventions.
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Affiliation(s)
| | | | - Paula J Martinez
- Departament of Immunology, IIS-Fundacion JimenezDiaz, REDinREN, Madrid, Spain
| | | | | | - Gema Ruiz-Hurtado
- Hypertension Unit, Instituto de Investigación imas12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Fernando de la Cuesta
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos SESCAM, Toledo, Spain
| | - Julián Segura
- Hypertension Unit, Instituto de Investigación imas12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Jesús Vazquez
- Laboratory of Cardiovascular Proteomics CNIC, Madrid, Spain
| | - Fernando Vivanco
- Departament of Immunology, IIS-Fundacion JimenezDiaz, REDinREN, Madrid, Spain.,Department of Biochemistry and Molecular Biology I, Universidad Complutense, Madrid, Spain
| | - Maria G Barderas
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos SESCAM, Toledo, Spain
| | - Luis M Ruilope
- Hypertension Unit, Instituto de Investigación imas12, Hospital Universitario 12 de Octubre, Madrid, Spain. .,Universidad Europea, Madrid, Spain.
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22
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Gómez-Cardona EE, Hernández-Domínguez EE, Velarde-Salcedo AJ, Pacheco AB, Diaz-Gois A, De León-Rodríguez A, Barba de la Rosa AP. 2D-DIGE as a strategy to identify serum biomarkers in Mexican patients with Type-2 diabetes with different body mass index. Sci Rep 2017; 7:46536. [PMID: 28425473 PMCID: PMC5397846 DOI: 10.1038/srep46536] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 03/22/2017] [Indexed: 12/11/2022] Open
Abstract
Obesity and type 2 diabetes(T2D) are the most prevalent and serious metabolic diseases affecting people worldwide. However racial and ethnic disparities seems to be a risk factor for their development. Mexico has been named as one of the largest populations with the highest prevalence of diabetes and obesity. The aim of this study was to identify novel T2D-associated proteins in Mexican patients. Blood samples were collected from 62 Mexican patients with T2D and they were grouped according to their body mass index(BMI). A panel of 10 diabetes and obesity serum markers was determined using MAGPIX. A comparative proteomics study was performed using two-dimensional difference in-gel electrophoresis(2D-DIGE) followed by mass spectrometry(LC-MS/MS). We detected 113 spots differentially accumulated, in which 64 unique proteins were identified, proteins that were involved in metabolism pathways, molecular transport, and cellular signalling. Four proteins(14-3-3, ApoH, ZAG, and OTO3) showing diabetes-related variation and also changes in relation to obesity were selected for further validation by western blotting. Our results reveal new diabetes related proteins present in the Mexican population. These could provide additional insight into the understanding of diabetes development in Mexican population and may also be useful candidate biomarkers.
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Affiliation(s)
- Erik E Gómez-Cardona
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San Jose No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, Mexico
| | - Eric E Hernández-Domínguez
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San Jose No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, Mexico
| | - Aída J Velarde-Salcedo
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San Jose No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, Mexico
| | - Alberto-Barrera- Pacheco
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San Jose No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, Mexico
| | - Agustín Diaz-Gois
- Juridiscción Sanitaria No. 1, Centros de Salud San Luis Potosi, San Luis Potosi, Mexico
| | - Antonio De León-Rodríguez
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San Jose No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, Mexico.,Department of Genetics, University of Cambridge, Downing Street, Cambridge CB2 3EH, UK
| | - Ana P Barba de la Rosa
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San Jose No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, Mexico
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23
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Redox Status of β2GPI in Different Stages of Diabetic Angiopathy. DISEASE MARKERS 2016; 2016:8246839. [PMID: 27818568 PMCID: PMC5081428 DOI: 10.1155/2016/8246839] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/09/2016] [Indexed: 12/16/2022]
Abstract
We explored the redox status of beta 2 glycoprotein I (β2GPI) in different stages of diabetic angiopathy. Type 2 diabetes mellitus (T2DM) had a significantly lower proportion of reduced β2GPI as compared to healthy controls (p < 0.05). There was a trend that the mild coronal atherosclerosis heart disease (CAD) had higher proportion of reduced β2GPI than non-CAD and severe-CAD groups, however without significances (p > 0.05). The mild-A-stenosis group and mild-diabetic retinopathy (DR) groups had higher proportion of reduced β2GPI than their severely affected counterparts. The mild-slow nerve conduction velocity (NCVS) group had higher proportion of reduced β2GPI than normal nerve conduction velocity (NCVN group) and severe-NCVS groups. The proportion of reduced β2GPI was in positive correlation with 24 h urine microalbumin and total urine protein, and the proportion of reduced β2GPI was in negative correlation with serum and skin advanced glycation end products (AGEs). Taken together, our data implicate that the proportion of reduced β2GPI increased in the early stage of angiopathy and decreased with the aggravation of angiopathy.
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24
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Genome-wide significant results identified for plasma apolipoprotein H levels in middle-aged and older adults. Sci Rep 2016; 6:23675. [PMID: 27030319 PMCID: PMC4814826 DOI: 10.1038/srep23675] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/07/2016] [Indexed: 11/09/2022] Open
Abstract
Apolipoprotein H (ApoH) is a multi-functional plasma glycoprotein that has been associated with negative health outcomes. ApoH levels have high heritability. We undertook a genome-wide association study of ApoH levels using the largest sample to date and replicated the results in an independent cohort (total N = 1,255). In the discovery phase, a meta-analysis of two cohorts, the Sydney Memory and Ageing Study (Sydney MAS) and the Older Australian Twins Study (OATS) (n = 942) revealed genome-wide significant results in or near the APOH gene on chromosome 17 (top SNP, rs7211380, p = 1 × 10−11). The results were replicated in an independent cohort, the Hunter Community Study (p < 0.002) (n = 313). Conditional and joint analysis (COJO) confirmed the association of the chromosomal 17 region with ApoH levels. The set of independent SNPs identified by COJO explained 23% of the variance. The relationships between the top SNPs and cardiovascular/lipid/cognition measures and diabetes were assessed in Sydney MAS, with suggestive results observed for diabetes and cognitive performance. However, replication of these results in the smaller OATS cohort was not found. This work provides impetus for future research to better understand the contribution of genetics to ApoH levels and its possible impacts on health.
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25
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Hasstedt SJ, Coon H, Xin Y, Adams TD, Hunt SC. APOH interacts with FTO to predispose to healthy thinness. Hum Genet 2015; 135:201-7. [PMID: 26711810 DOI: 10.1007/s00439-015-1629-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 12/18/2015] [Indexed: 01/17/2023]
Abstract
We identified eight candidate thinness predisposition variants from the Illumina HumanExome chip genotyped on members of pedigrees selected for either healthy thinness or severe obesity. For validation, we tested the candidates for association with healthy thinness in additional pedigree members while accounting for effects of obesity-associated genes: NPFFR2, NPY2R, FTO, and MC4R. Significance was obtained for the interaction of FTO rs9939609 with APOH missense variant rs52797880 (minor allele frequency 0.054). The thinness odds ratio was estimated as 2.15 (p < 0.05) for the combination of APOH heterozygote with the homozygote for the non-obesity FTO allele. Significance was not obtained for any other combination of a candidate variant with an obesity gene or for any of the eight candidates tested independently.
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Affiliation(s)
- Sandra J Hasstedt
- Department of Human Genetics, University of Utah School of Medicine, 15 N 2030 E, Salt Lake City, UT, 84112-5330, USA.
| | - Hilary Coon
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Yuanpei Xin
- Cardiovascular Genetics Division, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Ted D Adams
- Cardiovascular Genetics Division, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Steven C Hunt
- Cardiovascular Genetics Division, University of Utah School of Medicine, Salt Lake City, UT, USA.,Department of Genetic Medicine, Weill Cornell Medical College, Doha, Qatar
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26
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Lipovich L, Hou ZC, Jia H, Sinkler C, McGowen M, Sterner KN, Weckle A, Sugalski AB, Pipes L, Gatti DL, Mason CE, Sherwood CC, Hof PR, Kuzawa CW, Grossman LI, Goodman M, Wildman DE. High-throughput RNA sequencing reveals structural differences of orthologous brain-expressed genes between western lowland gorillas and humans. J Comp Neurol 2015; 524:288-308. [PMID: 26132897 DOI: 10.1002/cne.23843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 06/20/2015] [Accepted: 06/23/2015] [Indexed: 12/22/2022]
Abstract
The human brain and human cognitive abilities are strikingly different from those of other great apes despite relatively modest genome sequence divergence. However, little is presently known about the interspecies divergence in gene structure and transcription that might contribute to these phenotypic differences. To date, most comparative studies of gene structure in the brain have examined humans, chimpanzees, and macaque monkeys. To add to this body of knowledge, we analyze here the brain transcriptome of the western lowland gorilla (Gorilla gorilla gorilla), an African great ape species that is phylogenetically closely related to humans, but with a brain that is approximately one-third the size. Manual transcriptome curation from a sample of the planum temporale region of the neocortex revealed 12 protein-coding genes and one noncoding-RNA gene with exons in the gorilla unmatched by public transcriptome data from the orthologous human loci. These interspecies gene structure differences accounted for a total of 134 amino acids in proteins found in the gorilla that were absent from protein products of the orthologous human genes. Proteins varying in structure between human and gorilla were involved in immunity and energy metabolism, suggesting their relevance to phenotypic differences. This gorilla neocortical transcriptome comprises an empirical, not homology- or prediction-driven, resource for orthologous gene comparisons between human and gorilla. These findings provide a unique repository of the sequences and structures of thousands of genes transcribed in the gorilla brain, pointing to candidate genes that may contribute to the traits distinguishing humans from other closely related great apes.
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Affiliation(s)
- Leonard Lipovich
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201.,Department of Neurology, School of Medicine, Wayne State University, Detroit, Michigan, 48201
| | - Zhuo-Cheng Hou
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201.,Department of Animal Genetics, China Agricultural University, Beijing, China
| | - Hui Jia
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201
| | - Christopher Sinkler
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201
| | - Michael McGowen
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201.,School of Biological and Chemical Sciences, Queen Mary, University of London, London, United Kingdom
| | - Kirstin N Sterner
- Department of Anthropology, University of Oregon, Eugene, Oregon, 97403
| | - Amy Weckle
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201.,Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, Illinois, 61801.,Department of Molecular and Integrative Physiology, University of Illinois, Urbana, Illinois, 61801
| | - Amara B Sugalski
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201
| | - Lenore Pipes
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, 10021
| | - Domenico L Gatti
- Department of Biochemistry and Molecular Biology, School of Medicine, Wayne State University, Detroit, Michigan, 48201.,Cardiovascular Research Institute, School of Medicine, Wayne State University, Detroit, Michigan, 48201
| | - Christopher E Mason
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, 10021
| | - Chet C Sherwood
- Department of Anthropology and the Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC, 20052
| | - Patrick R Hof
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, 10029.,New York Consortium in Evolutionary Primatology, New York, New York, 10024
| | | | - Lawrence I Grossman
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201
| | - Morris Goodman
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201.,Department of Anatomy and Cell Biology, School of Medicine, Wayne State University, Detroit, Michigan, 48201
| | - Derek E Wildman
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, 48201.,Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, Illinois, 61801.,Department of Molecular and Integrative Physiology, University of Illinois, Urbana, Illinois, 61801
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27
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Silencing LRH-1 in colon cancer cell lines impairs proliferation and alters gene expression programs. Proc Natl Acad Sci U S A 2015; 112:2467-72. [PMID: 25675535 DOI: 10.1073/pnas.1500978112] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Colorectal cancers (CRCs) account for nearly 10% of all cancer deaths in industrialized countries. Recent evidence points to a central role for the nuclear receptor liver receptor homolog-1 (LRH-1) in intestinal tumorigenesis. Interaction of LRH-1 with the Wnt/β-catenin pathway, highly active in a critical subpopulation of CRC cells, underscores the importance of elucidating LRH-1's role in this disease. Reduction of LRH-1 diminishes tumor burden in murine models of CRC; however, it is not known whether LRH-1 is required for tumorigenesis, for proliferation, or for both. In this work, we address this question through shRNA-mediated silencing of LRH-1 in established CRC cell lines. LRH-1 mRNA knockdown results in significantly impaired proliferation in a cell line highly expressing the receptor and more modest impairment in a cell line with moderate LRH-1 expression. Cell-cycle analysis shows prolongation of G0/G1 with LRH-1 silencing, consistent with LRH-1 cell-cycle influences in other tissues. Cluster analysis of microarray gene expression demonstrates significant genome wide alterations with major effects in cell-cycle regulation, signal transduction, bile acid and cholesterol metabolism, and control of apoptosis. This study demonstrates a critical proproliferative role for LRH-1 in established colon cancer cell lines. LRH-1 exerts its effects via multiple signaling networks. Our results suggest that selected CRC patients could benefit from LRH-1 inhibitors.
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28
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Xu J, Wang P, Wang T, Wang M, Chen S, Yu P, Yu D. Effects of reduced β2-glycoprotein I on the expression of aortic matrix metalloproteinases and tissue inhibitor matrix metalloproteinases in diabetic mice. BMC Cardiovasc Disord 2014; 14:114. [PMID: 25204377 PMCID: PMC4166470 DOI: 10.1186/1471-2261-14-114] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Accepted: 09/05/2014] [Indexed: 01/19/2023] Open
Abstract
Background Reduced β2-glycoprotein I (reduced β2GP I), which has free sulfhydryl groups, is present in plasma and serum; it can protect vascular endothelial cells from damage due to oxidative stress in vitro. We investigated the effects of reduced β2GP I on the expression of various matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) in the aortas of diabetic mice. Methods We provided 120 female 8-week-old Balb/c mice with a high sugar, high fat diet. After 8 weeks they were injected with streptozotocin to induce diabetes. We treated mice in the mono dose groups with β2GP I, reduced β2GP I, or phosphate-buffered saline (PBS) on day 1 and fed them for 3 weeks. The mice in the complex dose groups were treated with β2GP I, reduced β2GP I, or PBS on days 1 and 22 and fed for 6 weeks. Control mice were given a standard chow diet. Blood lipids were measured at the end of 3 or 6 weeks, and aortas removed to observe morphological and molecular biological changes. Results The low-density lipoprotein cholesterol levels in mice of the reduced β2GP I group were lower than those in the diabetic group. Aortic lipid deposition in the reduced β2GP I group was significantly less than in the diabetic control group. In the aortas, reduced β2GP I decreased MMP2/TIMP2 mRNA and protein expression levels, and MMP9/TIMP1 expression levels compared with those in diabetic controls. Reduced β2GP I down-regulated p38 mitogen-activated protein kinase (p38MAPK) mRNA expression and phosphorylated p38MAPK protein expression compared with those in diabetic controls of the complex dose group. Conclusions Reduced β2GP I plays a role in diabetic mice related to vascular protection, inhibiting vascular lipid deposition, and plaque formation by reducing MMPs/TIMPs expression through down-regulation of the p38MAPK signaling pathway.
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Affiliation(s)
| | | | | | | | | | - Pei Yu
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, the Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, No,66 Tong-An Road, Heping district, Tianjin, 300070, China.
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29
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Chambers JC, Abbott J, Zhang W, Turro E, Scott WR, Tan ST, Afzal U, Afaq S, Loh M, Lehne B, O'Reilly P, Gaulton KJ, Pearson RD, Li X, Lavery A, Vandrovcova J, Wass MN, Miller K, Sehmi J, Oozageer L, Kooner IK, Al-Hussaini A, Mills R, Grewal J, Panoulas V, Lewin AM, Northwood K, Wander GS, Geoghegan F, Li Y, Wang J, Aitman TJ, McCarthy MI, Scott J, Butcher S, Elliott P, Kooner JS. The South Asian genome. PLoS One 2014; 9:e102645. [PMID: 25115870 PMCID: PMC4130493 DOI: 10.1371/journal.pone.0102645] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 06/21/2014] [Indexed: 12/15/2022] Open
Abstract
The genetic sequence variation of people from the Indian subcontinent who comprise one-quarter of the world's population, is not well described. We carried out whole genome sequencing of 168 South Asians, along with whole-exome sequencing of 147 South Asians to provide deeper characterisation of coding regions. We identify 12,962,155 autosomal sequence variants, including 2,946,861 new SNPs and 312,738 novel indels. This catalogue of SNPs and indels amongst South Asians provides the first comprehensive map of genetic variation in this major human population, and reveals evidence for selective pressures on genes involved in skin biology, metabolism, infection and immunity. Our results will accelerate the search for the genetic variants underlying susceptibility to disorders such as type-2 diabetes and cardiovascular disease which are highly prevalent amongst South Asians.
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Affiliation(s)
- John C. Chambers
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
- MRC-HPA Centre for Environment and Health, Imperial College London, Norfolk Place, London, United Kingdom
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
| | - James Abbott
- Centre for Integrative Systems Biology and Bioinformatics, Imperial College London, London, United Kingdom
| | - Weihua Zhang
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
| | - Ernest Turro
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
- Computational Biology and Statistics, University of Cambridge, Cambridge, United Kingdom
| | - William R. Scott
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Sian-Tsung Tan
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
- NHLI, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Uzma Afzal
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Saima Afaq
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Marie Loh
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Benjamin Lehne
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Paul O'Reilly
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Kyle J. Gaulton
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Richard D. Pearson
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Xinzhong Li
- Institute of Clinical Sciences, Imperial College London, London, United Kingdom
- Royal Brompton and Harefield Hospitals NHS Trust, London, United Kingdom
| | - Anita Lavery
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Jana Vandrovcova
- MRC Clinical Sciences Centre, Imperial College London, London, United Kingdom
| | - Mark N. Wass
- Centre for Integrative Systems Biology and Bioinformatics, Imperial College London, London, United Kingdom
| | - Kathryn Miller
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
| | - Joban Sehmi
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
- NHLI, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | | | | | - Abtehale Al-Hussaini
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Rebecca Mills
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
| | - Jagvir Grewal
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
| | | | - Alexandra M. Lewin
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
| | - Korrinne Northwood
- MRC Clinical Sciences Centre, Imperial College London, London, United Kingdom
| | - Gurpreet S. Wander
- Hero DMC Heart Institute, Dayanand Medical College and Hospital, Ludhiana, India
| | - Frank Geoghegan
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
| | | | | | - Timothy J. Aitman
- MRC Clinical Sciences Centre, Imperial College London, London, United Kingdom
| | - Mark I. McCarthy
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
- Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford, United Kingdom
| | - James Scott
- NHLI, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Sarah Butcher
- Centre for Integrative Systems Biology and Bioinformatics, Imperial College London, London, United Kingdom
| | - Paul Elliott
- Epidemiology and Biostatistics, Imperial College London, Norfolk Place, London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
- MRC-HPA Centre for Environment and Health, Imperial College London, Norfolk Place, London, United Kingdom
| | - Jaspal S. Kooner
- Imperial College Healthcare NHS Trust, London, United Kingdom
- Ealing Hospital NHS Trust, Southall, Middlesex, United Kingdom
- NHLI, Imperial College London, Hammersmith Hospital, London, United Kingdom
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30
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Chiu WC, Lin JY, Lee TS, You LR, Chiang AN. β₂-glycoprotein I inhibits VEGF-induced endothelial cell growth and migration via suppressing phosphorylation of VEGFR2, ERK1/2, and Akt. Mol Cell Biochem 2012; 372:9-15. [PMID: 22956423 DOI: 10.1007/s11010-012-1440-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 08/25/2012] [Indexed: 12/26/2022]
Abstract
β(2)-glycoprotein I (β(2)-GPI) is a plasma glycoprotein with diverse functions, but the impact and molecular effects of β(2)-GPI on vascular biology are as yet unclear. Based on the limited information available on the contribution of β(2)-GPI to endothelial cells, we investigated the effect of β(2)-GPI on cell growth and migration in human aortic endothelial cells (HAECs). The regulation of β(2)-GPI as part of intracellular signaling in HAECs was also examined. Vascular endothelial growth factor (VEGF) is a pro-angiogenic factor that may regulate endothelial functions. We found that β(2)-GPI dose-dependently inhibited VEGF-induced endothelial cell growth using the 3-(4,5-dimethylthiazol-2-yl)-2,5-dipenyl tetrazolium bromide assay and cell counts. Using wound healing and Boyden chamber assays, β(2)-GPI remarkably reduced VEGF-increased cell migration at the physiological concentration. Furthermore, β(2)-GPI suppressed VEGF-induced phosphorylation of VEGF receptor 2 (VEGFR2), extracellular signal-regulated kinase 1/2 (ERK1/2), and Akt. These results suggest that β(2)-GPI plays an essential role in the down-regulation of VEGF-induced endothelial responses and may be a useful component for anti-angiogenic therapy.
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Affiliation(s)
- Wen-Chin Chiu
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, 155 Section 2, Li-Nong Street, Shih-Pai, Taipei 11221, Taiwan, Republic of China
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31
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β2-Glycoprotein I inhibits endothelial cell migration through the nuclear factor κB signalling pathway and endothelial nitric oxide synthase activation. Biochem J 2012; 445:125-33. [DOI: 10.1042/bj20111383] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
β2-GPI (β2-glycoprotein I) is a plasma glycoprotein ascribed with an anti-angiogenic function; however, the biological role and molecular basis of its action in cell migration remain unknown. The aim of the present study was to assess the contribution of β2-GPI to HAEC (human aortic endothelial cell) migration and the details of its underlying mechanism. Using wound healing and Boyden chamber assays, we found that β2-GPI inhibited endothelial cell migration, which was restored by its neutralizing antibody. NF-κB (nuclear factor κB) inhibitors and lentiviral siRNA (small interfering RNA) silencing of NF-κB significantly attenuated the inhibitory effect of β2-GPI on cell migration. Moreover, β2-GPI was found to induce IκBα (inhibitor of NF-κB) phosphorylation and translocation of p65 and p50. We further demonstrated that mRNA and protein levels of eNOS [endothelial NO (nitric oxide) synthase] and NO production were all increased by β2-GPI and these effects were remarkably inhibited by NF-κB inhibitors and siRNAs of p65 and p50. Furthermore, β2-GPI-mediated inhibition of cell migration was reversed by eNOS inhibitors and eNOS siRNAs. The findings of the present study provide novel insight into the ability of β2-GPI to inhibit endothelial cell migration predominantly through the NF-κB/eNOS/NO signalling pathway, which indicates a potential direction for clinical therapy in vascular diseases.
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32
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Song F, Poljak A, Crawford J, Kochan NA, Wen W, Cameron B, Lux O, Brodaty H, Mather K, Smythe GA, Sachdev PS. Plasma apolipoprotein levels are associated with cognitive status and decline in a community cohort of older individuals. PLoS One 2012; 7:e34078. [PMID: 22701550 PMCID: PMC3372509 DOI: 10.1371/journal.pone.0034078] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 02/21/2012] [Indexed: 11/29/2022] Open
Abstract
Objectives Apolipoproteins have recently been implicated in the etiology of Alzheimer’s disease (AD). In particular, Apolipoprotein J (ApoJ or clusterin) has been proposed as a biomarker of the disease at the pre-dementia stage. We examined a group of apolipoproteins, including ApoA1, ApoA2, ApoB, ApoC3, ApoE, ApoH and ApoJ, in the plasma of a longitudinal community based cohort. Methods 664 subjects (257 with Mild Cognitive Impairment [MCI] and 407 with normal cognition), mean age 78 years, from the Sydney Memory and Aging Study (MAS) were followed up over two years. Plasma apolipoprotein levels at baseline (Wave 1) were measured using a multiplex bead fluorescence immunoassay technique. Results At Wave 1, MCI subjects had lower levels of ApoA1, ApoA2 and ApoH, and higher levels of ApoE and ApoJ, and a higher ApoB/ApoA1 ratio. Carriers of the apolipoprotein E ε4 allele had significantly lower levels of plasma ApoE, ApoC3 and ApoH and a significantly higher level of ApoB. Global cognitive scores were correlated positively with ApoH and negatively with ApoJ levels. ApoJ and ApoE levels were correlated negatively with grey matter volume and positively with cerebrospinal fluid (CSF) volume on MRI. Lower ApoA1, ApoA2 and ApoH levels, and higher ApoB/ApoA1 ratio, increased the risk of cognitive decline over two years in cognitively normal individuals. ApoA1 was the most significant predictor of decline. These associations remained after statistically controlling for lipid profile. Higher ApoJ levels predicted white matter atrophy over two years. Conclusions Elderly individuals with MCI have abnormal apolipoprotein levels, which are related to cognitive function and volumetric MRI measures cross-sectionally and are predictive of cognitive impairment in cognitively normal subjects. ApoA1, ApoH and ApoJ are potential plasma biomarkers of cognitive decline in non-demented elderly individuals.
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Affiliation(s)
- Fei Song
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- School of Psychiatry, University of New South Wales, Sydney, Australia
- Bioanalytical Mass Spectrometry Facility, University of New South Wales, Sydney, Australia
| | - Anne Poljak
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- Bioanalytical Mass Spectrometry Facility, University of New South Wales, Sydney, Australia
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - John Crawford
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Nicole A. Kochan
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Wei Wen
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Barbara Cameron
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Ora Lux
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
| | - Henry Brodaty
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- School of Psychiatry, University of New South Wales, Sydney, Australia
- Dementia Collaborative Research Centre, University of New South Wales, Sydney, Australia
| | - Karen Mather
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- School of Psychiatry, University of New South Wales, Sydney, Australia
| | - George A. Smythe
- Bioanalytical Mass Spectrometry Facility, University of New South Wales, Sydney, Australia
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Perminder S. Sachdev
- Brain and Aging Research Program, University of New South Wales, Sydney, Australia
- School of Psychiatry, University of New South Wales, Sydney, Australia
- * E-mail:
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Advanced glycation end products of human β₂ glycoprotein I modulate the maturation and function of DCs. Blood 2011; 117:6152-61. [PMID: 21498672 DOI: 10.1182/blood-2010-12-325514] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In chronic disorders related to endothelial cell dysfunction, plasma β₂ glycoprotein I (β₂GPI) plays a role as a target antigen of pathogenetic autoimmune responses. However, information is still lacking to clarify why β₂GPI triggers autoimmunity. It is possible that posttranslational modification of the protein, such as nonenzymatic glycosylation, leads to the formation of advanced glycation end products (AGEs). The aim of our study was to explore whether glucose-modified β₂GPI is able to interact and activate monocyte-derived immature dendritic cells (iDCs) from healthy human donors. SDS-PAGE and spectrofluorometric analyses indicated that β₂GPI incubated with glucose was sugar modified, and that this modification likely consisted of AGE formation, resulting in AGE-β₂GPI. AGE-β₂GPI caused phenotypical and functional maturation of iDCs involving the activation of p38 MAPK, ERK, and NF-κB. It also induced on DCs a significant up-regulation of RAGE, the receptor for AGEs. Evidence for RAGE involvement comes from blocking experiments with an anti-RAGE mAb, confocal analysis, and coimmunoprecipitation experiments. AGE-β₂GPI-stimulated DCs had increased allostimulatory ability and primed naive T lymphocytes toward a Th2 polarization. These findings might explain in part the interactive role of β₂GPI, AGEs, and DCs in chronic disorders related to endothelial cell dysfunction.
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