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HDL Proteomics

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https://www.readbyqxmd.com/read/28936395/antioxidative-activity-of-high-density-lipoprotein-hdl-mechanistic-insights-into-potential-clinical-benefit
#1
REVIEW
Fernando Brites, Maximiliano Martin, Isabelle Guillas, Anatol Kontush
Uptake of low-density lipoprotein (LDL) particles by macrophages represents a key step in the development of atherosclerotic plaques, leading to the foam cell formation. Chemical modification of LDL is however necessary to induce this process. Proatherogenic LDL modifications include aggregation, enzymatic digestion and oxidation. LDL oxidation by one-electron (free radicals) and two-electron oxidants dramatically increases LDL affinity to macrophage scavenger receptors, leading to rapid LDL uptake and fatty streak formation...
December 2017: BBA Clinical
https://www.readbyqxmd.com/read/28883884/itraq-based-quantitative-proteomics-analysis-of-the-protective-effect-of-yinchenwuling-powder-on-hyperlipidemic-rats
#2
Zheyu Zhang, Wenbo Wang, Ling Jin, Xin Cao, Gonghui Jian, Ning Wu, Xia Xu, Ye Yao, Dongsheng Wang
Yinchenwuling powder (YCL) is an effective traditional Chinese medicine formula to modulate lipid levels. In this study, we established hyperlipidemic rat models and treated them with YCL. The serum concentrations of lipid, malondialdehyde (MDA), endothelin-1 (ET-1), and calcitonin gene-related peptide (CGRP) were measured. Adventitia-free vascular proteins between hyperlipidemic rats and YCL-treated rats were identified using iTRAQ-based quantitative proteomics research approach. Proteins with 1.3-fold difference were analyzed through bioinformatics, and proteomic results were verified by Western blot...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28768900/plasminogen-promotes-cholesterol-efflux-by-the-abca1-pathway
#3
Nathalie Pamir, Patrick M Hutchins, Graziella E Ronsein, Hao Wei, Chongren Tang, Riku Das, Tomas Vaisar, Edward Plow, Volker Schuster, Catherine A Reardon, Richard Weinberg, David A Dichek, Santica Marcovina, Godfrey S Getz, Jay W Heinecke
Using genetic and biochemical approaches, we investigated proteins that regulate macrophage cholesterol efflux capacity (CEC) and ABCA1-specific CEC (ABCA1 CEC), 2 functional assays that predict cardiovascular disease (CVD). Macrophage CEC and the concentration of HDL particles were markedly reduced in mice deficient in apolipoprotein A-I (APOA1) or apolipoprotein E (APOE) but not apolipoprotein A-IV (APOA4). ABCA1 CEC was markedly reduced in APOA1-deficient mice but was barely affected in mice deficient in APOE or APOA4...
August 3, 2017: JCI Insight
https://www.readbyqxmd.com/read/28754556/kidney-function-is-associated-with-an-altered-protein-composition-of-high-density-lipoprotein
#4
Katya B Rubinow, Clark M Henderson, Cassianne Robinson-Cohen, Jonathan Himmelfarb, Ian H de Boer, Tomas Vaisar, Bryan Kestenbaum, Andrew N Hoofnagle
Patients with chronic kidney disease (CKD) exhibit a myriad of metabolic derangements, including dyslipidemia characterized by low plasma concentrations of high-density lipoprotein (HDL)-associated cholesterol. However, the effects of kidney disease on HDL composition have not been comprehensively determined. Here we used a targeted mass spectrometric approach to quantify 38 proteins contained in the HDL particles within a CKD cohort of 509 participants with a broad range of estimated glomerular filtration rates (eGFRs) (CKD stages I-V, and a mean eGFR of 45...
July 26, 2017: Kidney International
https://www.readbyqxmd.com/read/28683964/detrimental-effect-of-hypercholesterolemia-on-high-density-lipoprotein-particle-remodeling%C3%A2-in%C3%A2-pigs
#5
Teresa Padró, Judit Cubedo, Sandra Camino, Maria Teresa Béjar, Soumaya Ben-Aicha, Guiomar Mendieta, Joan Carles Escolà-Gil, Rafael Escate, Manuel Gutiérrez, Laura Casani, Lina Badimon, Gemma Vilahur
BACKGROUND: Beneficial effects of high-density lipoproteins (HDL) seem altered in patients with symptomatic cardiovascular disease. We recently demonstrated in a swine model of ischemia-reperfusion (IR) that hypercholesterolemia abolishes HDL-related cardioprotection. OBJECTIVES: This study sought to investigate, using the same animal model, whether the reported impairment of HDL cardioprotective function was associated with alterations in HDL remodeling and functionality...
July 11, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28608804/phytosterols-and-omega-3-supplementation-exert-novel-regulatory-effects-on-metabolic-and-inflammatory-pathways-a-proteomic-study
#6
Carmen Lambert, Judit Cubedo, Teresa Padró, Joan Sánchez-Hernández, Rosa M Antonijoan, Antonio Perez, Lina Badimon
Cardiovascular disease (CVD) remains one of the major causes of death and disability worldwide. In addition to drug treatment, nutritional interventions or supplementations are becoming a health strategy for CVD prevention. Phytosterols (PhyS) are natural components that have been shown to reduce cholesterol levels; while poly-unsaturated fatty acids (PUFA), mainly omega-3 (ω3) fatty acids, have shown to reduce triglyceride levels. Here we aimed to investigate whether the proteins in the main lipoproteins (low density lipoproteins (LDL) and high density lipoproteins (HDL)) as well as proteins in the lipid free plasma fraction (LPDP) were regulated by the intake of PhyS-milk or ω3-milk, in overweight healthy volunteers by a proteomic based systems biology approach...
June 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28486149/dietary-supplementation-with-long-chain-monounsaturated-fatty-acid-isomers-decreases-atherosclerosis-and-alters-lipoprotein-proteomes-in-ldlr-mice
#7
Zhi-Hong Yang, Scott M Gordon, Denis Sviridov, Shuibang Wang, Robert L Danner, Milton Pryor, Boris Vaisman, Yuka Shichijo, Nobushige Doisaki, Alan T Remaley
BACKGROUND AND AIMS: Concentrated fish oils, containing a mixture of long-chain monounsaturated fatty acids (LCMUFA) with aliphatic chains longer than 18 C atoms (i.e., C20:1 and C22:1), have been shown to attenuate atherosclerosis development in mouse models. It is not clear, however, how individual LCMUFA isomers may act on atherosclerosis. METHODS: In the present study, we used saury fish oil-derived concentrates enriched in either C20:1 or C22:1 isomer fractions to investigate their individual effect on atherosclerosis and lipoprotein metabolism...
July 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28476857/apolipoprotein-a-ii-alters-the-proteome-of-human-lipoproteins-and-enhances-cholesterol-efflux-from-abca1
#8
John T Melchior, Scott E Street, Allison B Andraski, Jeremy D Furtado, Frank M Sacks, Rebecca L Shute, Emily I Greve, Debi K Swertfeger, Hailong Li, Amy S Shah, L Jason Lu, W Sean Davidson
HDLs are a family of heterogeneous particles that vary in size, composition, and function. The structure of most HDLs is maintained by two scaffold proteins, apoA-I and apoA-II, but up to 95 other "accessory" proteins have been found associated with the particles. Recent evidence suggests that these accessory proteins are distributed across various subspecies and drive specific biological functions. Unfortunately, our understanding of the molecular composition of such subspecies is limited. To begin to address this issue, we separated human plasma and HDL isolated by ultracentrifugation (UC-HDL) into particles with apoA-I and no apoA-II (LpA-I) and those with both apoA-I and apoA-II (LpA-I/A-II)...
July 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28410926/effect-of-high-density-lipoprotein-cholesterol-on-the-relationship-of-serum-iron-and-hemoglobin-with-kidney-function-in-diabetes
#9
Ashley N Williams, Baqiyyah N Conway
Findings of increased hemoglobin inside the HDL proteome among persons with diabetes who have haptoglobin 2-2 genotype suggest that iron-induced lipid peroxidation may be involved in diabetic kidney disease. We investigated the relationships of serum hemoglobin and iron with kidney function, and whether this varied by level of HDLc, in 5296 adults with and 49,161 without diabetes. Estimated eGFR was our marker of kidney function. Hemoglobin was positively associated with eGFR among those with diabetes and inversely among those without diabetes (interaction p-value <0...
June 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28223350/mapping-atheroprotective-functions-and-related-proteins-lipoproteins-in-size-fractionated-human-plasma
#10
Debi K Swertfeger, Hailong Li, Sandra Rebholz, Xiaoting Zhu, Amy S Shah, W Sean Davidson, Long J Lu
HDL has been shown to possess a variety of cardio-protective functions, including removal of excess cholesterol from the periphery, and inhibition of lipoprotein oxidation. It has been proposed that various HDL subparticles exist, each with distinct protein and lipid compositions, which may be responsible for HDL's many functions. We hypothesized that HDL functions will co-migrate with the operational lipoprotein subspecies when separated by gel filtration chromatography. Plasma from 10 healthy male donors was fractionated and the protein composition of the phospholipid containing fractions was analyzed by mass spectrometry (MS)...
April 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28209220/very-low-density-lipoprotein-associated-apolipoproteins-predict-cardiovascular-events-and-are-lowered-by-inhibition%C3%A2-of%C3%A2-apoc-iii
#11
Raimund Pechlaner, Sotirios Tsimikas, Xiaoke Yin, Peter Willeit, Ferheen Baig, Peter Santer, Friedrich Oberhollenzer, Georg Egger, Joseph L Witztum, Veronica J Alexander, Johann Willeit, Stefan Kiechl, Manuel Mayr
BACKGROUND: Routine apolipoprotein (apo) measurements for cardiovascular disease (CVD) are restricted to apoA-I and apoB. Here, the authors measured an unprecedented range of apolipoproteins in a prospective, population-based study and relate their plasma levels to risk of CVD. OBJECTIVES: This study sought to measure apolipoproteins directly by mass spectrometry and compare their associations with incident CVD and to obtain a system-level understanding of the correlations of apolipoproteins with the plasma lipidome and proteome...
February 21, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28002079/unbiased-and-targeted-mass-spectrometry-for-the-hdl-proteome
#12
Sasha A Singh, Masanori Aikawa
PURPOSE OF REVIEW: Mass spectrometry is an ever evolving technology that is equipped with a variety of tools for protein research. Some lipoprotein studies, especially those pertaining to HDL biology, have been exploiting the versatility of mass spectrometry to understand HDL function through its proteome. Despite the role of mass spectrometry in advancing research as a whole, however, the technology remains obscure to those without hands on experience, but still wishing to understand it...
February 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/27989944/top-down-protein-identification-using-isotopic-envelope-fingerprinting
#13
Kaijie Xiao, Fan Yu, Zhixin Tian
For top-down protein database search and identification from tandem mass spectra, our isotopic envelope fingerprinting search algorithm and ProteinGoggle search engine have demonstrated their strength of efficiently resolving heavily overlapping data as well separating non-ideal data with non-ideal isotopic envelopes from ideal ones with ideal isotopic envelopes. Here we report our updated ProteinGoggle 2.0 for intact protein database search with full-capacity. The indispensable updates include users' optional definition of dynamic post-translational modifications and static chemical labeling during database creation, comprehensive dissociation methods and ion series, as well as a Proteoform Score for each proteoform...
January 30, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/27934969/quantitative-hdl-proteomics-identifies-peroxiredoxin-6-as-a-biomarker-of-human-abdominal-aortic-aneurysm
#14
Elena Burillo, Inmaculada Jorge, Diego Martínez-López, Emilio Camafeita, Luis Miguel Blanco-Colio, Marco Trevisan-Herraz, Iakes Ezkurdia, Jesús Egido, Jean-Baptiste Michel, Olivier Meilhac, Jesús Vázquez, Jose Luis Martin-Ventura
High-density lipoproteins (HDLs) are complex protein and lipid assemblies whose composition is known to change in diverse pathological situations. Analysis of the HDL proteome can thus provide insight into the main mechanisms underlying abdominal aortic aneurysm (AAA) and potentially detect novel systemic biomarkers. We performed a multiplexed quantitative proteomics analysis of HDLs isolated from plasma of AAA patients (N = 14) and control study participants (N = 7). Validation was performed by western-blot (HDL), immunohistochemistry (tissue), and ELISA (plasma)...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917957/refined-purification-strategy-for-reliable-proteomic-profiling-of-hdl2-3-impact-on-proteomic-complexity
#15
Michael Holzer, Sabine Kern, Ruth Birner-Grünberger, Sanja Curcic, Akos Heinemann, Gunther Marsche
Proteomics have extended the list of high-density lipoprotein (HDL) associated proteins to about 90. One of the major issues of global protein characterization is establishing specificity of association as opposed to contamination, a fact which has never been addressed for isolated HDL. We have developed a refined purification strategy to isolate HDL by density, followed by purification by size to generate "highly purified" fractions of HDL2/3, which allow the reliable quantification of the HDL proteome for biomarker discovery...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27865523/alterations-in-high-density-lipoprotein-proteome-and-function-associated-with-persistent-organic-pollutants
#16
Stefan A Ljunggren, Ingela Helmfrid, Ulf Norinder, Mats Fredriksson, Gun Wingren, Helen Karlsson, Mats Lindahl
There is a growing body of evidence that persistent organic pollutants (POPs) may increase the risk for cardiovascular disease (CVD), but the mechanisms remain unclear. High-density lipoprotein (HDL) acts protective against CVD by different processes, and we have earlier found that HDL from subjects with CVD contains higher levels of POPs than healthy controls. In the present study, we have expanded analyses on the same individuals living in a contaminated community and investigated the relationship between the HDL POP levels and protein composition/function...
November 16, 2016: Environment International
https://www.readbyqxmd.com/read/27600335/itraq-based-proteomic-analysis-of-plasma-reveals-abnormalities-in-lipid-metabolism-proteins-in-chronic-kidney-disease-related-atherosclerosis
#17
Magdalena Luczak, Dorota Formanowicz, Łukasz Marczak, Joanna Suszyńska-Zajczyk, Elżbieta Pawliczak, Maria Wanic-Kossowska, Maciej Stobiecki
Patients with chronic kidney disease (CKD) have a considerably higher risk of death due to cardiovascular causes. Using an iTRAQ MS/MS approach, we investigated the alterations in plasma protein accumulation in patients with CKD and classical cardiovascular disease (CVD) without CKD. The proteomic analysis led to the identification of 130 differentially expressed proteins among CVD and CKD patients and healthy volunteers. Bioinformatics analysis revealed that 29 differentially expressed proteins were involved in lipid metabolism and atherosclerosis, 20 of which were apolipoproteins and constituents of high-density lipoprotein (HDL) and low-density lipoprotein (LDL)...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27506748/functional-and-proteomic-alterations-of-plasma-high-density-lipoproteins-in-type-1-diabetes-mellitus
#18
Shankarappa Manjunatha, Klaus Distelmaier, Surendra Dasari, Rickey E Carter, Yogish C Kudva, K Sreekumaran Nair
OBJECTIVE: Higher HDL-cholesterol (HDL-C) is linked to lower cardiovascular risk but individuals with type 1 diabetes mellitus (T1DM) with normal or high HDL-C have higher cardiovascular events compared to age matched non-diabetic controls (ND). We determined whether altered HDL functions despite having normal HDL-C concentration may explain increased cardiovascular risk in T1DM individuals. We also determined whether irreversible posttranslational modifications (PTMs) of HDL bound proteins occur in T1DM individuals with altered HDL functions...
September 2016: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/27385375/impact-of-genetic-deletion-of-platform-apolipoproteins-on-the-size-distribution-of-the-murine-lipoproteome
#19
Scott M Gordon, Hailong Li, Xiaoting Zhu, Patrick Tso, Catherine A Reardon, Amy S Shah, L Jason Lu, W Sean Davidson
UNLABELLED: Given their association with cardiovascular disease protection, there has been intense interest in understanding the biology of high density lipoproteins (HDL). HDL is actually a family of diverse particle types, each made up of discrete - but as yet undetermined - combinations of proteins drawn from up to 95 lipophilic plasma proteins. The abundant apolipoproteins (apo) of the A class (apoA-I, apoA-II and apoA-IV) have been proposed to act as organizing platforms for auxiliary proteins, but this concept has not been systematically evaluated...
September 2, 2016: Journal of Proteomics
https://www.readbyqxmd.com/read/27344311/masp1-thbs1-gpld1-and-apoa-iv-are-novel-biomarkers-associated-with-prediabetes-the-kora-f4-study
#20
Christine von Toerne, Cornelia Huth, Tonia de Las Heras Gala, Florian Kronenberg, Christian Herder, Wolfgang Koenig, Christa Meisinger, Wolfgang Rathmann, Melanie Waldenberger, Michael Roden, Annette Peters, Barbara Thorand, Stefanie M Hauck
AIMS/HYPOTHESIS: Individuals at a high risk of type 2 diabetes demonstrate moderate impairments in glucose metabolism years before the clinical manifestation of type 2 diabetes, a state called 'prediabetes'. In order to elucidate the pathophysiological processes leading to type 2 diabetes, we aimed to identify protein biomarkers associated with prediabetes. METHODS: In a proteomics study, we used targeted selected reaction monitoring (SRM)-MS to quantify 23 candidate proteins in the plasma of 439 randomly selected men and women aged 47-76 years from the population-based German KORA F4 study...
September 2016: Diabetologia
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