201
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Liang L, Li J, Fu H, Liu X, Liu P. Identification of High Serum Apolipoprotein A1 as a Favorable Prognostic Indicator in Patients with Multiple Myeloma. J Cancer 2019; 10:4852-4859. [PMID: 31598156 PMCID: PMC6775509 DOI: 10.7150/jca.31357] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 08/14/2019] [Indexed: 12/13/2022] Open
Abstract
This study is to explore the prognostic significance of serum lipid profiles in patients with multiple myeloma (MM). The study retrospectively enrolled 307 MM patients in Zhongshan Hospital, Shanghai, China, from 2007 to 2016. We evaluated the prognostic significance of the pre-diagnostic serum lipid profile [cholesterol, triglyceride, low-density lipoprotein (LDL), high-density lipoprotein (HDL), Apolipoprotein A1 (Apo A1) and Apolipoprotein B (Apo B)]. Prognostic factors identified through univariate and multivariate analysis were used to construct a new model based on Lasso Cox regression. Results indicated that lipid levels showed significant difference between ISS stages: Apo A1, Apo B, Cholesterol and LDL levels were lower in late ISS stage. However, only Apo A1 showed statistically significance in overall survival (OS), progression free survival (PFS) and cause specific survival (CSS) (P=0.038, P=0.028, P=0.011) in univariate Cox regression. Patients with higher Apo A1 displayed longer OS (median OS, 67 months vs. 30 months; P<0.001). Also, Apo A1 was revealed to be an independent prognostic indicator through multivariate analysis. Combining the Apo A1 level, Zhongshan Score model was constructed with Lasso regression for prognosis prediction. This model exhibited higher accuracy than International Staging System (ISS) and Durie and Salmon (DS) system. In conclusion, among all the serum lipid profiles, serum Apo A1 is a powerful prognostic indicator for patients with MM.
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Affiliation(s)
- Lifan Liang
- Department of Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Li
- Department of Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hangcheng Fu
- Fudan University Shanghai Cancer Center, Shanghai, China
| | - Xinyang Liu
- Department of Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peng Liu
- Department of Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
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202
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Ding Z, Liu S, Wang X, Theus S, Deng X, Fan Y, Zhou S, Mehta JL. PCSK9 regulates expression of scavenger receptors and ox-LDL uptake in macrophages. Cardiovasc Res 2019; 114:1145-1153. [PMID: 29617722 DOI: 10.1093/cvr/cvy079] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 03/28/2018] [Indexed: 12/15/2022] Open
Abstract
Aims Proprotein convertase subtilisin/kexin type 9 (PCSK9) has been shown to influence macrophage biology and modulate atherogenesis. We conducted this study to examine the regulation of scavenger receptors (SRs) (LOX-1, SRA, and CD36) and oxidized liporoptein cholesterol (ox-LDL) uptake in macrophages by PCSK9. Methods and results Treatment of mouse peritoneal macrophages with tumour necrosis factor alpha (TNF-α) resulted in concentration-dependent modest, but significant, increase in PCSK9 expression. Importantly, treatment of TNF-α primed macrophages with recombinant murine PCSK9 increased the expression of LOX-1, SRA, and CD36 2-5 fold, and enhanced ox-LDL uptake by ≈five-fold. The increase in LOX-1 was much greater than in SRA or CD36. PCSK9 inhibition (by siRNA transfection or use of macrophages from PCSK9-/- mice) reduced the expression of SRs (LOX-1 ≫ SRA or CD36). Ox-LDL uptake in response to PCSK9 was also inhibited in macrophages from LOX-1-/- mice (P < 0.05 vs. macrophages from SRA-/- and CD36-/- mice). Upregulation of PCSK9 by cDNA transfection induced intense ox-LDL uptake which was inhibited by co-transfection of cells with siRNA LOX-1 (P < 0.05 vs. siRNA SRA or siRNA CD36). Further, TNF-α-mediated PCSK9 upregulation and subsequent expression of SRs and ox-LDL uptake were reduced in macrophages from gp91phox-/-, p47phox-/- and p22phox-/- mice (vs. macrophages from wild-type mice). Conclusions This study shows that in an inflammatory milieu, elevated levels of PCSK9 potently stimulate the expression of SRs (principally LOX-1) and ox-LDL uptake in macrophages, and thus contribute to the process of atherogenesis.
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Affiliation(s)
- Zufeng Ding
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.,Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang 453003, China.,Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Shijie Liu
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Xianwei Wang
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Sue Theus
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Xiaoyan Deng
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Sichang Zhou
- Department of Neurological Surgery, Weill Cornell Medicine, New York 10065, NY, USA
| | - Jawahar L Mehta
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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203
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Gu L, Saha ST, Thomas J, Kaur M. Targeting cellular cholesterol for anticancer therapy. FEBS J 2019; 286:4192-4208. [DOI: 10.1111/febs.15018] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/30/2019] [Accepted: 07/24/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Liang Gu
- School of Molecular and Cell Biology University of the Witwatersrand Johannesburg South Africa
| | - Sourav Taru Saha
- School of Molecular and Cell Biology University of the Witwatersrand Johannesburg South Africa
| | - Jodie Thomas
- School of Molecular and Cell Biology University of the Witwatersrand Johannesburg South Africa
| | - Mandeep Kaur
- School of Molecular and Cell Biology University of the Witwatersrand Johannesburg South Africa
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204
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Chai JT, Ruparelia N, Goel A, Kyriakou T, Biasiolli L, Edgar L, Handa A, Farrall M, Watkins H, Choudhury RP. Differential Gene Expression in Macrophages From Human Atherosclerotic Plaques Shows Convergence on Pathways Implicated by Genome-Wide Association Study Risk Variants. Arterioscler Thromb Vasc Biol 2019; 38:2718-2730. [PMID: 30354237 PMCID: PMC6217969 DOI: 10.1161/atvbaha.118.311209] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Supplemental Digital Content is available in the text. Objective— Plaque macrophages are intricately involved in atherogenesis and plaque destabilization. We sought to identify functional pathways in human plaque macrophages that are differentially regulated in respect of (1) plaque stability and (2) lipid content. We hypothesized that differentially regulated macrophage gene sets would relate to genome-wide association study variants associated with risk of acute complications of atherosclerosis. Approach and Results— Forty patients underwent carotid magnetic resonance imaging for lipid quantification before endarterectomy. Carotid plaque macrophages were procured by laser capture microdissection from (1) lipid core and (2) cap region, in 12 recently symptomatic and 12 asymptomatic carotid plaques. Applying gene set enrichment analysis, a number of gene sets were found to selectively upregulate in symptomatic plaque macrophages, which corresponded to 7 functional pathways: inflammation, lipid metabolism, hypoxic response, cell proliferation, apoptosis, antigen presentation, and cellular energetics. Predicted upstream regulators included IL-1β, TNF-α, and NF-κB. In vivo lipid quantification by magnetic resonance imaging correlated most strongly with the upregulation of genes of the IFN/STAT1 pathways. Cross-interrogation of gene set enrichment analysis and meta-analysis gene set enrichment of variant associations showed lipid metabolism pathways, driven by genes coding for APOE and ABCA1/G1 coincided with known risk-associated SNPs (single nucleotide polymorphisms) from genome-wide association studies. Conclusions— Macrophages from recently symptomatic carotid plaques show differential regulation of functional gene pathways. There were additional quantitative relationships between plaque lipid content and key gene sets. The data show a plausible mechanism by which known genome-wide association study risk variants for atherosclerotic complications could be linked to (1) a relevant cellular process, in (2) the key cell type of atherosclerosis, in (3) a human disease-relevant setting.
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Affiliation(s)
- Joshua T Chai
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Neil Ruparelia
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Anuj Goel
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Theodosios Kyriakou
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Luca Biasiolli
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Laurienne Edgar
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Ashok Handa
- Nuffield Department of Surgical Sciences (A.H.), University of Oxford, United Kingdom
| | - Martin Farrall
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Hugh Watkins
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
| | - Robin P Choudhury
- From the Division of Cardiovascular Medicine, Radcliffe Department of Medicine (J.T.C., N.R., A.G., T.K., L.B., L.E., M.F., H.W., R.P.C.), University of Oxford, United Kingdom
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205
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Xu L, Wang YR, Li PC, Feng B. Atorvastatin Blocks Advanced Glycation End Products Induced Reduction in Macrophage Cholesterol Efflux Mediated With ATP-Binding Cassette Transporters G 1. Circ J 2019; 83:1954-1964. [PMID: 31378770 DOI: 10.1253/circj.cj-19-0153] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND There is accumulating evidence that the AGEs-RAGE interaction plays an important role in accelerated atherosclerosis in diabetes. Our previous study showed that the AGEs-RAGE axis can reduce the cholesterol efflux of THP-1 macrophages through suppression of the expression of ABCG1 and that statins can inhibit the expression of RAGE. However, the role of statins in recovering the cholesterol efflux of macrophages reduced by AGEs has not been assessed.Methods and Results:ApoE-/-mice and THP-1 macrophages were both treated by AGEs or AGEs combined with anti-RAGE antibody (only in THP-1 cells), ALT711 and atorvastatin separately. Cholesterol efflux of THP-1 macrophages and murine peritoneal macrophages was tested by fluorescence microplate technique. RT-PCR and western blot analysis were used to measure the expression of RAGE and molecules included in cholesterol efflux. After co-incubating with atorvastatin and AGEs, reduction in lipid accumulation in THP-1 macrophages and improvement of lesions complexity occurred compared with treating by AGEs only. Atorvastatin increased cholesterol efflux and ABCG1 expression of macrophages, which were reduced by AGEs, and decreased the expression of RAGE at the same time. CONCLUSIONS This study demonstrated that atorvastatin can recover the deleterious ABCG1-mediated cholesterol efflux induced by AGEs in THP-1 macrophages and murine peritoneal macrophages by downregulating RAGE expression. It may contribute to the protective action of atorvastatin in diabetic subjects with atherosclerosis.
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Affiliation(s)
- Lei Xu
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine
| | - Yi-Ru Wang
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine
| | - Pei-Cheng Li
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine
| | - Bo Feng
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine
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206
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Barberio MD, Kasselman LJ, Playford MP, Epstein SB, Renna HA, Goldberg M, DeLeon J, Voloshyna I, Barlev A, Salama M, Ferrante SC, Nadler EP, Mehta N, Reiss AB, Freishtat RJ. Cholesterol efflux alterations in adolescent obesity: role of adipose-derived extracellular vesical microRNAs. J Transl Med 2019; 17:232. [PMID: 31331347 PMCID: PMC6647309 DOI: 10.1186/s12967-019-1980-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 07/12/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Macrophage cholesterol efflux capacity has been identified as a predictor for cardiovascular disease. We assessed the relationship between adipocyte-derived extracellular vesicle microRNAs and macrophage cholesterol efflux capacity. METHODS We assessed an adolescent cohort (n = 93, Age, median (IQR) = 17 (3) year, Female = 71, Male = 22) throughout the BMI continuum (BMI = 45.2 (13.2) kg/m2) for: (1) cholesterol efflux capacity and lipoprotein profiles; (2) adipocyte-derived extracellular vesicle microRNAs in serum; (3) the role of visceral adipose tissue extracellular vesicle in regulation of cholesterol efflux and cholesterol efflux gene expression in THP-1 macrophages in vitro. RESULTS Efflux capacity was significantly associated with HDL (r = 0.30, p = 0.01) and LDL (r = 0.33, p = 0.005) particle size. Multivariate-analysis identified six microRNAs associated (p < 0.05) with cholesterol efflux capacity: miR-3129-5p (Beta = 0.695), miR-20b (0.430), miR9-5p (0.111), miR-320d (- 0.190), miR301a-5p (0.042), miR-155-5p (0.004). In response to increasing concentrations (1 μg/mL vs. 3 μg/mL) of VAT extracellular vesicle, cholesterol efflux (66% ± 10% vs. 49% ± 2%; p < 0.01) and expression of ABCA1 (FC = 1.9 ± 0.8 vs 0.5 ± 0.2; p < 0.001), CD36 (0.7 ± 0.4 vs. 2.1 ± 0.8, p = 0.02), CYP27A1 (1.4 ± 0.4 vs. 0.9 ± 0.5; p < 0.05), and LXRA (1.8 ± 1.1 vs. 0.5 ± 0.2; p < 0.05) was altered in THP-1 cells in vitro. CONCLUSION Adipocyte-derived extracellular vesicle microRNAs may, in part, be involved macrophage cholesterol efflux regulation.
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Affiliation(s)
- Matthew D Barberio
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, 20010, USA
| | - Lora J Kasselman
- Winthrop Research Institute and Department of Medicine, NYU Winthrop Hospital, 101 Mineola Boulevard, Suite 4-004, Mineola, NY, 11501, USA
| | | | - Samuel B Epstein
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, 20010, USA
| | - Heather A Renna
- Winthrop Research Institute and Department of Medicine, NYU Winthrop Hospital, 101 Mineola Boulevard, Suite 4-004, Mineola, NY, 11501, USA
| | - Madeleine Goldberg
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, 20010, USA
| | - Joshua DeLeon
- Winthrop Research Institute and Department of Medicine, NYU Winthrop Hospital, 101 Mineola Boulevard, Suite 4-004, Mineola, NY, 11501, USA
| | - Iryna Voloshyna
- Winthrop Research Institute and Department of Medicine, NYU Winthrop Hospital, 101 Mineola Boulevard, Suite 4-004, Mineola, NY, 11501, USA
| | - Ashley Barlev
- Winthrop Research Institute and Department of Medicine, NYU Winthrop Hospital, 101 Mineola Boulevard, Suite 4-004, Mineola, NY, 11501, USA
| | - Michael Salama
- Winthrop Research Institute and Department of Medicine, NYU Winthrop Hospital, 101 Mineola Boulevard, Suite 4-004, Mineola, NY, 11501, USA
| | - Sarah C Ferrante
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, 20010, USA
| | - Evan P Nadler
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, 20010, USA
| | - Nehal Mehta
- National Heart Lung and Blood Institute, Bethesda, MD, USA
| | - Allison B Reiss
- Winthrop Research Institute and Department of Medicine, NYU Winthrop Hospital, 101 Mineola Boulevard, Suite 4-004, Mineola, NY, 11501, USA.
| | - Robert J Freishtat
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, 20010, USA
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207
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Thioredoxin-1 promotes macrophage reverse cholesterol transport and protects liver from steatosis. Biochem Biophys Res Commun 2019; 516:1103-1109. [PMID: 31280865 DOI: 10.1016/j.bbrc.2019.06.109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 06/19/2019] [Indexed: 12/22/2022]
Abstract
Atherosclerosis is characterized by the accumulation of excess cholesterol in plaques. Reverse cholesterol transport (RCT) plays a key role in the removal of cholesterol. In the present study, we examined the effect of thioredoxin-1 (Trx-1) on RCT and explored the underlying mechanism. We found that Trx-1 promoted RCT in vivo, as did T0901317, a known liver X receptor (LXR) ligand. T0901317 also inhibited the development of atherosclerotic plaques but promoted liver steatosis. Furthermore, Trx-1 promoted macrophage cholesterol efflux to apoAI in vitro. Mechanistically, Trx-1 promoted nuclear translocation of LXRα and induced the expression of ATP-binding cassette transporter A1 (ABCA1). Apolipoprotein E knockout (apoE-/-) mice fed an atherogenic diet were daily injected intraperitoneally with saline or Trx-1 (0.33 mg/kg). Trx-1 treatment significantly inhibited the development of atherosclerosis and induced the expression of ABCA1 in macrophages retrieved from apoE-/- mice. Moreover, the liver steatosis was attenuated by Trx-1. Overall, we demonstrated that Trx-1 promotes RCT by upregulating ABCA1 expression through induction of nuclear translocation of LXRα, and protects liver from steatosis.
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208
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Shen W, Anwaier G, Cao Y, Lian G, Chen C, Liu S, Tuerdi N, Qi R. Atheroprotective Mechanisms of Tilianin by Inhibiting Inflammation Through Down-Regulating NF-κB Pathway and Foam Cells Formation. Front Physiol 2019; 10:825. [PMID: 31333487 PMCID: PMC6614704 DOI: 10.3389/fphys.2019.00825] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 06/13/2019] [Indexed: 12/11/2022] Open
Abstract
Tilianin, a representative flavonoid ingredient of Dracocephalum moldavica L., has been used to treat several diseases for centuries, including atherosclerosis (AS). However, pharmacological mechanisms underlying its biological functions remain elusive. In the present study, we investigated the anti-AS mechanisms of tilianin through establishing in vitro models using three types of cells that contributed to AS progression, including macrophage, vascular smooth muscle cells and human umbilical vein endothelial cells, which were proved to be involve in LPS/TNF-α/oxidized low density lipoprotein (ox-LDL)-induced inflammation and ox-LDL induced foam cell formation. Our results indicate that tilianin significantly suppressed LPS induced inflammatory responses on macrophage and remarkably inhibited TNF-α induced VSMCs proliferation and migration. Furthermore, the anti-inflammatory effect of tilianin on macrophages and VSMCs was proved to be mainly by downregulating TNF-α/NF-κB pathway. Moreover, our results demonstrate that tilianin significantly ameliorated ox-LDL induced macrophages oriented foam cells formation through repressing mRNA expression of SR-A1 and inducting the expression of genes related to cholesterol efflux including SRB-1 and ABCA1. However, tilianin had no effect on ox-LDL induced HUVECs injury.
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Affiliation(s)
- Wanli Shen
- School of Pharmacy, Shihezi University, Shihezi, China.,Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
| | - Gulinigaer Anwaier
- School of Basic Medical Science, Shihezi University, Shihezi, China.,Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
| | - Yini Cao
- Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
| | - Guan Lian
- School of Pharmacy, Shihezi University, Shihezi, China.,Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
| | - Cong Chen
- Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
| | - Shu Liu
- School of Pharmacy, Shihezi University, Shihezi, China.,Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
| | - Nuerbiye Tuerdi
- School of Basic Medical Science, Shihezi University, Shihezi, China.,Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
| | - Rong Qi
- School of Basic Medical Science, Shihezi University, Shihezi, China.,School of Pharmacy, Shihezi University, Shihezi, China.,Institute of Cardiovascular Sciences, Peking University Health Science Center, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
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209
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Thelenota ananas saponin extracts attenuate the atherosclerosis in apoE−/− mice by modulating lipid metabolism. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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210
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Shen X, Chen Y, Zhang J, Yan X, Liu W, Guo Y, Shan Q, Liu S. Low-dose PCB126 compromises circadian rhythms associated with disordered glucose and lipid metabolism in mice. ENVIRONMENT INTERNATIONAL 2019; 128:146-157. [PMID: 31055201 DOI: 10.1016/j.envint.2019.04.058] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
It has been documented that 3, 3', 4, 4', 5-pentachlorobiphenyl (PCB126) elicits diverse detrimental effects on human health including metabolic syndrome and non-alcoholic fatty-liver disease (NAFLD), through a wide array of non-carcinogenic mechanisms, which require further detailed investigations. The circadian clock system consists of central clock machinery (located in the suprachiasmatic nucleus in the hypothalamus) and the peripheral clocks (located in nearly all peripheral tissues). Peripheral clocks in the liver play fundamental roles in maintaining liver homeostasis, including the regulation of energy metabolism and the expression of enzymes that fine-tune the absorption and metabolism of xenobiotics. However, the molecular basis of whether PCB126 disrupts liver homeostasis (e.g., glucose and lipid metabolism) by dysregulating the circadian clock system is still unknown. Thus, we performed a set of comprehensive analyses of glucose and lipid metabolism in the liver tissues from low-dose PCB126-treated mice. Our results demonstrated that PCB126 diminished glucose and cholesterol levels in serum and elevated glucose and cholesterol levels in the liver. Moreover, PCB126 compromised PGC1α and PDHE1α, which are the driving force for mitochondrial biogenesis and entry of pyruvate into the tricarboxylic acid (TCA) cycle, respectively, and resulted in the accumulation of glucose, glycogen and pyruvate in the liver after PCB126 exposure. Additionally, PCB126 blocked hepatic cholesterol metabolism and export pathways, leading to an elevated localization of hepatic cholesterol. Mechanistic investigations illustrated that PCB126 greatly altered the expression profile of core clock genes and their target rhythm genes involved in orchestrating glucose and cholesterol metabolism. Together, our results demonstrated that a close correlation between PCB126-disturbed glucose and lipid metabolism and disordered physiological oscillation of circadian genes.
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Affiliation(s)
- Xinming Shen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yongjiu Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jie Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xu Yan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yifan Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Qiuli Shan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China.
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211
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Nguyen MA, Wyatt H, Susser L, Geoffrion M, Rasheed A, Duchez AC, Cottee ML, Afolayan E, Farah E, Kahiel Z, Côté M, Gadde S, Rayner KJ. Delivery of MicroRNAs by Chitosan Nanoparticles to Functionally Alter Macrophage Cholesterol Efflux in Vitro and in Vivo. ACS NANO 2019; 13:6491-6505. [PMID: 31125197 DOI: 10.1021/acsnano.8b09679] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The prevention and treatment of cardiovascular diseases (CVD) has largely focused on lowering circulating LDL cholesterol, yet a significant burden of atherosclerotic disease remains even when LDL is low. Recently, microRNAs (miRNAs) have emerged as exciting therapeutic targets for cardiovascular disease. miRNAs are small noncoding RNAs that post-transcriptionally regulate gene expression by degradation or translational inhibition of target mRNAs. A number of miRNAs have been found to modulate all stages of atherosclerosis, particularly those that promote the efflux of excess cholesterol from lipid-laden macrophages in the vessel wall to the liver. However, one of the major challenges of miRNA-based therapy is to achieve tissue-specific, efficient, and safe delivery of miRNAs in vivo. We sought to develop chitosan nanoparticles (chNPs) that can deliver functional miRNA mimics to macrophages and to determine if these nanoparticles can alter cholesterol efflux and reverse cholesterol transport in vivo. We developed chNPs with a size range of 150-200 nm via the ionic gelation method using tripolyphosphate (TPP) as a cross-linker. In this method, negatively charged miRNAs were encapsulated in the nanoparticles by ionic interactions with polymeric components. We then optimized the efficiency of intracellular delivery of different formulations of chitosan/TPP/miRNA to mouse macrophages. Using a well-defined miRNA with roles in macrophage cholesterol metabolism, we tested whether chNPs could deliver functional miRNAs to macrophages. We find chNPs can transfer exogenous miR-33 to naïve macrophages and reduce the expression of ABCA1, a potent miR-33 target gene, both in vitro and in vivo, confirming that miRNAs delivered via nanoparticles can escape the endosomal system and function in the RISC complex. Because miR-33 and ABCA1 play a key role in regulating the efflux of cholesterol from macrophages, we also confirmed that macrophages treated with miR-33-loaded chNPs exhibited reduced cholesterol efflux to apolipoprotein A1, further confirming functional delivery of the miRNA. In vivo, mice treated with miR33-chNPs showed decreased reverse cholesterol transport (RCT) to the plasma, liver, and feces. In contrast, when efflux-promoting miRNAs were delivered via chNPs, ABCA1 expression and cholesterol efflux into the RCT pathway were improved. Over all, miRNAs can be efficiently delivered to macrophages via nanoparticles, where they can function to regulate ABCA1 expression and cholesterol efflux, suggesting that these miRNA nanoparticles can be used in vivo to target atherosclerotic lesions.
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Affiliation(s)
- My-Anh Nguyen
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
| | - Hailey Wyatt
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
| | - Leah Susser
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
| | - Michele Geoffrion
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
| | - Adil Rasheed
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
| | - Anne-Claire Duchez
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
| | - Mary Lynn Cottee
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
| | - Esther Afolayan
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine , University of Ottawa , Ottawa , Ontario K1H 8M5 , Canada
| | - Eliya Farah
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine , University of Ottawa , Ottawa , Ontario K1H 8M5 , Canada
| | - Zaina Kahiel
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine , University of Ottawa , Ottawa , Ontario K1H 8M5 , Canada
| | - Marceline Côté
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine , University of Ottawa , Ottawa , Ontario K1H 8M5 , Canada
| | - Suresh Gadde
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine , University of Ottawa , Ottawa , Ontario K1H 8M5 , Canada
| | - Katey J Rayner
- University of Ottawa Heart Institute , Ottawa , Ontario K1Y 4W7 , Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine , University of Ottawa , Ottawa , Ontario K1H 8M5 , Canada
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212
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Parrillo L, Spinelli R, Nicolò A, Longo M, Mirra P, Raciti GA, Miele C, Beguinot F. Nutritional Factors, DNA Methylation, and Risk of Type 2 Diabetes and Obesity: Perspectives and Challenges. Int J Mol Sci 2019; 20:ijms20122983. [PMID: 31248068 PMCID: PMC6627657 DOI: 10.3390/ijms20122983] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 12/17/2022] Open
Abstract
A healthy diet improves life expectancy and helps to prevent common chronic diseases such as type 2 diabetes (T2D) and obesity. The mechanisms driving these effects are not fully understood, but are likely to involve epigenetics. Epigenetic mechanisms control gene expression, maintaining the DNA sequence, and therefore the full genomic information inherited from our parents, unchanged. An interesting feature of epigenetic changes lies in their dynamic nature and reversibility. Accordingly, they are susceptible to correction through targeted interventions. Here we will review the evidence supporting a role for nutritional factors in mediating metabolic disease risk through DNA methylation changes. Special emphasis will be placed on the potential of using DNA methylation traits as biomarkers to predict risk of obesity and T2D as well as on their response to dietary and pharmacological (epi-drug) interventions.
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Affiliation(s)
- Luca Parrillo
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Rosa Spinelli
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Antonella Nicolò
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Michele Longo
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Paola Mirra
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Gregory Alexander Raciti
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Claudia Miele
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Francesco Beguinot
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
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213
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Henrich SE, Hong BJ, Rink JS, Nguyen ST, Thaxton CS. Supramolecular Assembly of High-Density Lipoprotein Mimetic Nanoparticles Using Lipid-Conjugated Core Scaffolds. J Am Chem Soc 2019; 141:9753-9757. [PMID: 31177775 DOI: 10.1021/jacs.9b00651] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Synthetic high-density lipoprotein (HDL) mimics have emerged as promising therapeutic agents. However, approaches to date have been unable to reproduce key features of spherical HDLs, which are the most abundant human HDL species. Here, we report the synthesis and characterization of spherical HDL mimics using lipid-conjugated organic core scaffolds. The core design motif constrains and orients phospholipid geometry to facilitate the assembly of soft-core nanoparticles that are approximately 10 nm in diameter and resemble human HDLs in their size, shape, surface chemistry, composition, and protein secondary structure. These particles execute salient HDL functions, including efflux of cholesterol from macrophages, cholesterol delivery to hepatocytes, support lecithin:cholesterol acyltransferase activity, and suppress inflammation. These results represent a significant step toward a genuine functional mimic of human HDLs.
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214
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Lai SJ, Ohkawa R, Horiuchi Y, Kubota T, Tozuka M. Red blood cells participate in reverse cholesterol transport by mediating cholesterol efflux of high-density lipoprotein and apolipoprotein A-I from THP-1 macrophages. Biol Chem 2019; 400:1593-1602. [DOI: 10.1515/hsz-2019-0244] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 06/04/2019] [Indexed: 11/15/2022]
Abstract
Abstract
High-density lipoprotein (HDL) plays a main role in reverse cholesterol transport (RCT), one of the most important functions for preventing atherosclerosis. Recent reports have shown that red blood cells (RBCs) can be associated with RCT, an interaction facilitated by albumin. However, the RCT function of RBCs has not been thoroughly elucidated. In this study, the RCT function of RBCs was assessed using cholesterol efflux capacity (CEC) assays, in which [3H]-labeled cholesterol-loaded human acute monocytic leukemia (THP-1) macrophages were incubated with RBCs as a cholesterol acceptor in the presence or absence of HDL or its main component protein apolipoprotein A-I (apoA-I). The CEC of RBCs was found to be dose dependent, enabling uptake of cholesterol from THP-1 macrophages through apoA-I and HDL, and directly from apoA-I and HDL in medium without the presence THP-1 macrophages. Moreover, RBCs could exchange cholesterol with HDL in a bidirectional manner but could only exchange cholesterol with apoA-I in a single direction. Although albumin promoted the movement of cholesterol, synergistic effects were not observed for both apoA-I and HDL, in contrast to previous findings. These results strongly suggested that RBCs may play important roles in RCT by mediating cholesterol efflux as temporary cholesterol storage.
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Affiliation(s)
- Shao-Jui Lai
- Analytical Laboratory Chemistry, Field of Applied Laboratory Science, Graduate School of Health Care Science , Tokyo Medical and Dental University , 1-5-45 Yushima, Bunkyo-ku , Tokyo 113-8519 , Japan
| | - Ryunosuke Ohkawa
- Analytical Laboratory Chemistry, Field of Applied Laboratory Science, Graduate School of Medical and Dental Sciences , Tokyo Medical and Dental University , 1-5-45 Yushima, Bunkyo-ku , Tokyo 113-8519 , Japan
| | - Yuna Horiuchi
- Analytical Laboratory Chemistry, Field of Applied Laboratory Science, Graduate School of Medical and Dental Sciences , Tokyo Medical and Dental University , 1-5-45 Yushima, Bunkyo-ku , Tokyo 113-8519 , Japan
| | - Tetsuo Kubota
- Immunopathology, Field of Applied Laboratory Science, Graduate School of Medical and Dental Sciences , Tokyo Medical and Dental University , 1-5-45 Yushima, Bunkyo-ku , Tokyo 113-8519 , Japan
| | - Minoru Tozuka
- Analytical Laboratory Chemistry, Field of Applied Laboratory Science, Graduate School of Medical and Dental Sciences , Tokyo Medical and Dental University , 1-5-45 Yushima, Bunkyo-ku , Tokyo 113-8519 , Japan
- Life Science Research Center , Nagano Children’s Hospital , 3100 Toyoshina , Azumino 399-8288 , Japan
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215
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Henrich SE, Thaxton CS. An update on synthetic high-density lipoprotein-like nanoparticles for cancer therapy. Expert Rev Anticancer Ther 2019; 19:515-528. [DOI: 10.1080/14737140.2019.1624529] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Stephen E. Henrich
- Department of Urology, Simpson Querrey Institute for BioNanotechnology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - C. Shad Thaxton
- Department of Urology, Simpson Querrey Institute for BioNanotechnology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
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216
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Park S, Lee IK. Progression of Multifaceted Immune Cells in Atherosclerotic Development. J Lipid Atheroscler 2019; 8:15-25. [PMID: 32821696 PMCID: PMC7379084 DOI: 10.12997/jla.2019.8.1.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/29/2019] [Accepted: 04/16/2019] [Indexed: 12/16/2022] Open
Abstract
Atherosclerosis is a major cause of morbidity and mortality due to cardiovascular diseases, such as coronary artery disease, stroke, and peripheral vascular disease, that are associated with thrombosis-induced organ infarction. In Westernized countries, the high prevalence of obesity-induced insulin resistance is predicted to be a major factor leading to atherosclerotic vascular disease. Both genetic and environmental factors interfere with immune responses in atherosclerosis development with chronic and non-resolving states. The most known autoimmune disease therapy is cytokine-targeted therapy, which targets tumor necrosis factor-α and interleukin (IL)-17 antagonists. Recently, a clinical trial with the anti-IL-1β antibody (canakinumab) had shown that the anti-inflammatory effects in canakinumab-treated subjects play a critical role in reducing cardiovascular disease prevalence. Recent emerging data have suggested effective therapeutics involving anti-obesity and anti-diabetic agents, as well as statin and anti-platelet drugs, for atherothrombosis prevention. It is well-known that specialized immune differentiation and activation completely depends on metabolic reprogramming mediated by mitochondrial dynamics in distinct immune cells. Therefore, there is a strong mechanistic link between metabolism and immune function mediated by mitochondrial function. In this review, we describe that cellular metabolism in immune cells is strongly interconnected with systemic metabolism in terms of diverse phenotypes and activation.
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Affiliation(s)
- Sungmi Park
- Leading-edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, Kyungpook National University Hospital, Daegu, Korea
| | - In-Kyu Lee
- Leading-edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, Kyungpook National University Hospital, Daegu, Korea
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217
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Wang J, Yannie PJ, Ghosh SS, Ghosh S. Regulation of interleukin-1 beta secretion from macrophages via modulation of potassium ion (K + ) channel activity. FEBS Lett 2019; 593:1166-1178. [PMID: 31026357 DOI: 10.1002/1873-3468.13395] [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: 12/31/2018] [Revised: 04/09/2019] [Accepted: 04/22/2019] [Indexed: 11/11/2022]
Abstract
A causal relationship exists between macrophage cholesterol levels and inflammation, for example, Interleukin-1β (IL-1β) secretion. A decrease in intracellular K+ is essential for inflammasome activation/IL-1β secretion and, herein, we examined the hypothesis that cellular cholesterol affects K+ -channel activity and K+ -efflux using mouse peritoneal macrophages (MPMs) and human/THP1 macrophages. An increase in cellular cholesterol led to a significant increase in K+ currents (> 350% in both MPM and THP1). Enhancing cholesterol efflux returned K+ currents back to basal levels with corresponding increase in intracellular K+ (11.2-14.5%) and reduced IL-1β secretion (32-62%). These data demonstrate a novel mechanism by which cellular cholesterol modulates inflammation/inflammasome via regulation of K+ -channel activity and intracellular K+ levels. Attenuation of IL-1β secretion by Nateglinide/Repaglinide further suggests involvement of Kir6 channels.
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Affiliation(s)
- Jing Wang
- Department of Internal Medicine, VCU Medical Center, Richmond, VA, USA
| | - Paul J Yannie
- Hunter Homes McGuire VA Medical Center, Richmond, VA, USA
| | | | - Shobha Ghosh
- Department of Internal Medicine, VCU Medical Center, Richmond, VA, USA.,Hunter Homes McGuire VA Medical Center, Richmond, VA, USA
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218
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Paraoxonase-1 activities in individuals with different HDL circulating levels: Implication in reverse cholesterol transport and early vascular damage. Atherosclerosis 2019; 285:64-70. [PMID: 31029939 DOI: 10.1016/j.atherosclerosis.2019.04.218] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 03/14/2019] [Accepted: 04/10/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND AIMS Epidemiological data showing that high-density lipoprotein cholesterol (HDL-C) is inversely associated with cardiovascular disease have led to the idea that cholesterol contained in this lipoprotein may be protective. Against, recent evidence suggests that the athero-protection from HDLs may result from other functions, unrelated to the carried cholesterol. HDL accessory proteins, such as paraoxonase 1 (PON1), have been suggested to endows HDL with antioxidant and anti-inflammatory properties and to contribute to the athero-protective function of the lipoprotein. We aimed to evaluate whether extreme fluctuation in HDL-C levels correlates with PON1 activity. METHODS Levels of PON1-related arylesterase and lactonase were assessed in subjects with primary hyperalphalipoproteinemia (HAL, HDL-C>90th percentile), hypoalphalipoproteinemia (HA, HDL-C<10th percentile) and controls. Cholesterol efflux capacity (CEC) through several pathways and other metabolic parameters and markers of vascular disease were also determined. RESULTS Despite the marked change in HDL-C and Apoliprotein A1 (APO A1) (p < 0.001 for all comparisons), arylesterase and lactonase were only slightly increased in HAL compared with HA subjects (p < 0.05), but not vs. controls. This change in PON1 activities was no longer significant after adjustment for either HDL-C or APO A1. Both enzymatic activities were positively associated only with aqueous diffusion CEC (r = 0.318, p < 0.05 and r = 0.355, p < 0.05, respectively) and negatively with the presence of plaques (p < 0.05). CONCLUSIONS We showed that extreme high/low HDL-C levels are not associated with equal increase/decrease in PON1 activities. This enzyme appears to contribute to the HDL role in reverse cholesterol transport and anti-atherosclerosis processes. Further investigation is required to corroborate our findings.
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219
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Yang ZH, Pryor M, Noguchi A, Sampson M, Johnson B, Pryor M, Donkor K, Amar M, Remaley AT. Dietary Palmitoleic Acid Attenuates Atherosclerosis Progression and Hyperlipidemia in Low-Density Lipoprotein Receptor-Deficient Mice. Mol Nutr Food Res 2019; 63:e1900120. [PMID: 30921498 DOI: 10.1002/mnfr.201900120] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/12/2019] [Indexed: 01/22/2023]
Abstract
SCOPE Palmitoleic acid (palmitoleate; C16:1 n-7), an omega-7 monounsaturated fatty acid (MUFA) found in plants and marine sources, has been shown to favorably modulate lipid and glucose metabolism. However, its impact on atherosclerosis has not been examined in detail. METHODS AND RESULTS LDL receptor knock out (LDLR-KO) mice are fed a Western diet supplemented with 5% (w/w) palmitoleate concentrate, oleic-rich olive oil, or none (control) for 12 weeks. Dietary palmitoleate increases hepatic C16:1 levels, improves plasma and hepatic lipid/lipoprotein profiles (≈40% decrease in triglycerides), and reduces the atherosclerotic plaque area by ≈45% compared with control or olive oil group (p < 0.05). These favorable changes are accompanied by the downregulation of key genes, such as Srebp1c, Scd1, Il-1β, and Tnfα. ApoB-depleted plasma from mice fed palmitoleate has increased cholesterol efflux capacity by 20% from ABCA1-expressing cells (p < 0.05). A beneficial effect of palmitoleate on glucose metabolism (54% decreased in HOMA-IR, p < 0.05) is also observed. CONCLUSIONS Dietary-supplemented palmitoleate reduces atherosclerosis development in LDLR-KO mice, and is associated with improvement of lipid and glucose metabolism and favorable changes in regulatory genes involved in lipogenesis and inflammation. These findings imply the potential role of dietary palmitoleate in the prevention of cardiovascular disease and diet-induced metabolic disorders.
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Affiliation(s)
- Zhi-Hong Yang
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Milton Pryor
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Audrey Noguchi
- Murine Phenotyping Core, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Maureen Sampson
- Clinical Center, Department of Laboratory Medicine, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Brittany Johnson
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Matthew Pryor
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Kwame Donkor
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Marcelo Amar
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Alan T Remaley
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
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Xu BM, Xiao L, Kang CM, Ding L, Guo FX, Li P, Lu ZF, Wu Q, Xu YJ, Bai HL, Tang JY, Zheng L, Hu YW, Wang Q. LncRNA AC096664.3/PPAR‐γ/ABCG1‐dependent signal transduction pathway contributes to the regulation of cholesterol homeostasis. J Cell Biochem 2019; 120:13775-13782. [PMID: 30938872 DOI: 10.1002/jcb.28650] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 12/13/2018] [Accepted: 02/07/2019] [Indexed: 02/06/2023]
MESH Headings
- ATP Binding Cassette Transporter, Subfamily G, Member 1/genetics
- ATP Binding Cassette Transporter, Subfamily G, Member 1/metabolism
- Atherosclerosis/genetics
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Cholesterol/genetics
- Cholesterol/metabolism
- Homeostasis
- Humans
- Lipoproteins, LDL/genetics
- Lipoproteins, LDL/metabolism
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- PPAR gamma/genetics
- PPAR gamma/metabolism
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Signal Transduction
- THP-1 Cells
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Affiliation(s)
- Bang-Ming Xu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lei Xiao
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chun-Min Kang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Li Ding
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Feng-Xia Guo
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Pan Li
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhi-Feng Lu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qian Wu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuan-Jun Xu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Huan-Lan Bai
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jun-Yi Tang
- Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lei Zheng
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan-Wei Hu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qian Wang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Calderón B, Huerta L, Casado ME, González-Casbas JM, Botella-Carretero JI, Martín-Hidalgo A. Morbid obesity-related changes in the expression of lipid receptors, transporters, and HSL in human sperm. J Assist Reprod Genet 2019; 36:777-786. [PMID: 30659447 PMCID: PMC6505031 DOI: 10.1007/s10815-019-01406-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/09/2019] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE To study the location and expression of receptors (SR-BI/CLA-1, SR-BII, and LDLr) and transporter (ABCA1) involved in uptake and efflux of cholesterol in human spermatozoa and assess whether obesity alters its location/expression and whether this could be related to infertility. DESIGN Observational study. SETTING None PATIENT(S): Ten controls and 20 obese patients. INTERVENTION(S) Anthropometric parameters. Serum and semen samples were collected. MAIN OUTCOME MEASURE(S) Spermatozoon concentration, immunolocalization, and protein expression in semen. RESULTS Spermatozoon concentration and motility was decreased in morbidly obese patients. SR-BI/CLA-1, SR-BII, LDLr, and ABCA1 are located in the spermatozoon cell membrane and the localization does not change between obese patients and controls. Control spermatozoa showed high SR-BI expression, and less expression for the rest of the receptors analyzed, indicating that SR-BI/CLA-1 is relevant in human spermatozoon cholesterol uptake/efflux. On the contrary, spermatozoa of obese patients showed less SR-BI/CLA-1 expression than controls, and more intense positive staining for SR-BII, LDLr, and ABCA1. Finally, human sperm expresses the 130- and 82-kDa hormone-sensitive lipase (HSL) isoforms. The 130-kDa isoform is expressed in the control sperm, and the expression disappears in the obese patients. CONCLUSION(S) The presence of lipid receptors/transporters and HSL in human spermatozoa suggests their role in the process of maturation/capacitation. The changes in the expression of lipid receptors/transporters and the lack of the 130-kDa HSL isoform in obese patients prevent the hydrolysis of cholesterol esters internalized by these receptors, and favor their accumulation in the cytoplasm of the spermatozoa that could contribute to lipotoxicity and infertility.
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Affiliation(s)
- Berniza Calderón
- Instituto Tecnológico Santo Domingo (INTEC), Santo Domingo, República Dominicana
- Departamento de Endocrinología y Metabolismo, Madrid, Spain
| | - Lydia Huerta
- Servicio de Bioquímica-Investigación, Madrid, Spain
| | - María Emilia Casado
- Servicio de Bioquímica-Investigación, Madrid, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn), ISCIII, Madrid, Spain
| | - José Manuel González-Casbas
- Instituto Europeo de Fertilidad y Unidad de Reproducción Asistida, Instituto Ramón y Cajal de Investigación Sanitaria (IRyCIS), Hospital Universitario Ramón y Cajal, E-28034, Madrid, Spain
| | - José Ignacio Botella-Carretero
- Departamento de Endocrinología y Metabolismo, Madrid, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn), ISCIII, Madrid, Spain
| | - Antonia Martín-Hidalgo
- Servicio de Bioquímica-Investigación, Madrid, Spain.
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn), ISCIII, Madrid, Spain.
- Department of Biochemistry-Research, Hospital Universitario Ramón y Cajal, Ctra.ColmenarViejo, Km 9.100, E-28034, Madrid, Spain.
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Hao B, Bi B, Sang C, Yu M, Di D, Luo G, Zhang X. Systematic Review and Meta-Analysis of the Prognostic Value of Serum High-Density Lipoprotein Cholesterol Levels for Solid Tumors. Nutr Cancer 2019; 71:547-556. [PMID: 30871387 DOI: 10.1080/01635581.2019.1577983] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Bo Hao
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China
| | - Baochen Bi
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China
| | - Chen Sang
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China
| | - Miaomei Yu
- Comprehensive Laboratory, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China
| | - Dongmei Di
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China
| | - Guanghua Luo
- Comprehensive Laboratory, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China
| | - Xiaoying Zhang
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China
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223
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High-Density Lipoprotein Functionality as a New Pharmacological Target on Cardiovascular Disease: Unifying Mechanism That Explains High-Density Lipoprotein Protection Toward the Progression of Atherosclerosis. J Cardiovasc Pharmacol 2019. [PMID: 29528874 DOI: 10.1097/fjc.0000000000000573] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The formation of the atherosclerotic plaque that is characterized by the accumulation of abnormal amounts of cholesterol-loaded macrophages in the artery wall is mediated by both inflammatory events and alterations of lipid/lipoprotein metabolism. Reverse transport of cholesterol opposes the formation and development of atherosclerotic plaque by promoting high density lipoprotein (HDL)-mediated removal of cholesterol from peripheral macrophages and its delivery back to the liver for excretion into the bile. Although an inverse association between HDL plasma levels and the risk of cardiovascular disease (CVD) has been demonstrated over the years, several studies have recently shown that the antiatherogenic functions of HDL seem to be mediated by their functionality, not always associated with their plasma concentrations. Therefore, assessment of HDL function, evaluated as the capacity to promote cell cholesterol efflux, may offer a better prediction of CVD than HDL levels alone. In agreement with this idea, it has recently been shown that the assessment of serum cholesterol efflux capacity (CEC), as a metric of HDL functionality, may represent a predictor of atherosclerosis extent in humans. The purpose of this narrative review is to summarize the current evidence concerning the role of cholesterol efflux capacity that is important for evaluating CVD risk, focusing on pharmacological evidences and its relationship with inflammation. We conclude that HDL therapeutics are a promising area of investigation but strategies for identifying efficacy must move beyond the idea of simply raising static HDL-cholesterol levels and toward methods of measuring the dynamics of HDL particle remodeling and the generation of lipid-free apolipoprotein A-I (apoA-I). In this way, apoA-I, unlike mature HDL, can promote the greatest extent of cholesterol efflux relieving cellular cholesterol toxicity and the inflammation it causes.
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224
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Mehrpouri M, Bashash D, Mohammadi MH, Gheydari ME, Satlsar ES, Hamidpour M. Co-culture of Platelets with Monocytes Induced M2 Macrophage Polarization and Formation of Foam Cells: Shedding Light on the Crucial Role of Platelets in Monocyte Differentiation. Turk J Haematol 2019; 36:97-105. [PMID: 30859801 PMCID: PMC6516100 DOI: 10.4274/tjh.galenos.2019.2018.0449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective Far beyond hemostasis and thrombosis, significant evidence has indicated the critical role of platelets in atherosclerosis. SDF-1 is among the pro-inflammatory chemokines that are increased in platelets of patients with coronary artery disease (CAD). The goal of the current work is to identify the in vitro effect of platelets from either CAD patients or healthy volunteers on the induction of macrophages and foam cells. Materials and Methods The expression of SDF-1 on platelet surfaces in CAD patients and healthy volunteers was investigated using flow cytometry. We also evaluated the CXCR4/CXCR7 expression on monocytes from buffy coats of healthy volunteers. The effect of platelets from CAD patients and healthy volunteers on differentiation of monocytes and foam cell formation was evaluated using Oil Red O (ORO) staining. Flow cytometry and real-time PCR were also employed to evaluate surface markers and mRNA expression of genes involved in this process after co-culture of platelets with monocytes. Results Monocytes in co-culture with platelets acquired a spindleshape appearance and ORO-positive lipid droplets. In addition, platelets could induce CD163 expression, as an important marker of M2 macrophage, and upregulate the mRNA expression of the SRB, CD36, ACAT, LXR-α, and ABCA1 genes in monocytes. Notably, platelets of CAD patients with higher expression of SDF-1, increased the expression of genes encoding SRB and CD36 as compared to platelets of healthy volunteers. Conclusion Our results indicate that platelets from CAD patients could provoke monocyte differentiation into macrophages with an M2 phenotype, which in turn may participate in an atheroprotective process.
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Affiliation(s)
- Mahdieh Mehrpouri
- Shahid Beheshti University of Medical Sciences, Faculty of Allied Medical Sciences, Department of Hematology and Blood Banking, Tehran, Iran
| | - Davood Bashash
- Shahid Beheshti University of Medical Sciences, Faculty of Allied Medical Sciences, Department of Hematology and Blood Banking, Tehran, Iran
| | - Mohammad Hossien Mohammadi
- HSCT Research Centre, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Esmail Gheydari
- Shahid Beheshti University of Medical Sciences Faculty of Medicine, Taleghani General Hospital, Department of Cardiology, Tehran, Iran
| | - Esmail Shahabi Satlsar
- Shahid Beheshti University of Medical Sciences, Faculty of Allied Medical Sciences, Department of Hematology and Blood Banking, Tehran, Iran
| | - Mohsen Hamidpour
- HSCT Research Centre, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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225
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Teng X, Li W, Cornaby C, Morel L. Immune cell metabolism in autoimmunity. Clin Exp Immunol 2019; 197:181-192. [PMID: 30770544 DOI: 10.1111/cei.13277] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2019] [Indexed: 12/13/2022] Open
Abstract
Immune metabolism is a rapidly moving field. While most of the research has been conducted to define the metabolism of healthy immune cells in the mouse, it is recognized that the overactive immune system that drives autoimmune diseases presents metabolic abnormalities that provide therapeutic opportunities, as well as a means to understand the fundamental mechanisms of autoimmune activation more clearly. Here, we review recent publications that have reported how the major metabolic pathways are affected in autoimmune diseases, with a focus on rheumatic diseases.
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Affiliation(s)
- X Teng
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, USA
| | - W Li
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, USA
| | - C Cornaby
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, USA
| | - L Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, USA
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226
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Tabari FS, Karimian A, Parsian H, Rameshknia V, Mahmoodpour A, Majidinia M, Maniati M, Yousefi B. The roles of FGF21 in atherosclerosis pathogenesis. Rev Endocr Metab Disord 2019; 20:103-114. [PMID: 30879171 DOI: 10.1007/s11154-019-09488-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
FGF21 is a peptide hormone that regulates homeostasis of lipid and glucose as well as energy metabolism. It is mainly expressed and secreted in liver and adipose tissues, and it is expressed in lower amounts in the aorta. Recent clinical and preclinical studies indicate increased serum FGF21 levels in atherosclerosis patients. Also, FGF21 therapy has been reported to reduce the initiation and progression of atherosclerosis in animal models and in vitro studies. Moreover, growing evidence indicates that administration of exogenous FGF21 induces anti-atherosclerotic effects, because of its ability to reduce lipid profile, alleviation of oxidative stress, inflammation, and apoptosis. Therefore, FGF21 can not only be considered as a biomarker for predicting atherosclerosis, but also induce protective effects against atherosclerosis. Besides, serum levels of FGF21 increase in various diseases including in diabetes mellitus, hypertension, and obesity, which may be related to initiating and exacerbating atherosclerosis. On the other hand, FGF21 therapy significantly improves lipid profiles, and reduces vascular inflammation and oxidative stress in atherosclerosis related diseases. Therefore, further prospective studies are needed to clarify whether FGF21 can be used as a prognostic biomarker to identify individuals at future risk of atherosclerosis in these atherosclerosis-associated diseases. In this review, we will discuss the possible mechanism by which FGF21 protects against atherosclerosis.
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Affiliation(s)
- Farzane Shanebandpour Tabari
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Ansar Karimian
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Hadi Parsian
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Vahid Rameshknia
- Faculty of Medicine, Tabriz Branch, Islamic Azad University, Tabriz, Iran
- Department of Biochemistry, Baku State University, Baku, Azerbaijan
| | - Ata Mahmoodpour
- Anesthesiology Research Team, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mahmood Maniati
- Faculty of Medicine, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bahman Yousefi
- Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Science, Tabriz, Iran.
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227
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Hu X, Zhang N, Fu Y. Role of Liver X Receptor in Mastitis Therapy and Regulation of Milk Fat Synthesis. J Mammary Gland Biol Neoplasia 2019; 24:73-83. [PMID: 30066175 DOI: 10.1007/s10911-018-9403-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/04/2018] [Indexed: 02/03/2023] Open
Abstract
Mastitis is important disease that causes huge economic losses in the dairy industry. In recent years, antibiotic therapy has become the primary treatment for mastitis, however, due to drug residue in milk and food safety factors, we lack safe and effective drugs for treating mastitis. Therefore, new targets and drugs are urgently needed to control mastitis. LXRα, one of the main members of the nuclear receptor superfamily, is reported to play important roles in metabolism, infection and immunity. Activation of LXRα could inhibit LPS-induced mastitis. Furthermore, LXRα is reported to enhance milk fat production, thus, LXRα may serve as a new target for mastitis therapy and regulation of milk fat synthesis. This review summarizes the effects of LXRα in regulating milk fat synthesis and treatment of mastitis and highlights the potential agonists involved in both issues.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- Anti-Inflammatory Agents/therapeutic use
- Cattle
- Dairying
- Escherichia coli/isolation & purification
- Escherichia coli/pathogenicity
- Female
- Global Burden of Disease
- Humans
- Immunity, Innate
- Lactation/metabolism
- Lipid Metabolism
- Liver X Receptors/agonists
- Liver X Receptors/metabolism
- Mammary Glands, Animal/cytology
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/microbiology
- Mammary Glands, Animal/pathology
- Mammary Glands, Human/cytology
- Mammary Glands, Human/immunology
- Mammary Glands, Human/microbiology
- Mammary Glands, Human/pathology
- Mastitis/drug therapy
- Mastitis/immunology
- Mastitis/microbiology
- Mastitis, Bovine/drug therapy
- Mastitis, Bovine/epidemiology
- Mastitis, Bovine/immunology
- Mastitis, Bovine/microbiology
- Membrane Microdomains/metabolism
- Milk/metabolism
- Prevalence
- Receptors, Pattern Recognition/metabolism
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Affiliation(s)
- Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, People's Republic of China
| | - Naisheng Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, People's Republic of China.
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, People's Republic of China.
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228
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ABCA1 Agonist Mimetic Peptide CS-6253 Induces Microparticles Release From Different Cell Types by ABCA1-Efflux-Dependent Mechanism. Can J Cardiol 2019; 35:770-781. [PMID: 31151713 DOI: 10.1016/j.cjca.2019.02.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Small peptides based on the C-terminal domain of apo E have recently been proposed as ATP-binding cassette transporter A1 (ABCA1) agonist with therapeutic potential. Previous work has shown that a novel synthetic peptide, CS-6253, acts synergistically with apolipoprotein A-I or alone to generate high-density lipoprotein (HDL) particles; we have also shown that cells can release microparticles (50-350 nm in apparent diameter) in an ABCA1- and apolipoprotein A-I-dependent manner. The purpose of this study was to explore the ability of a novel synthetic peptide CS-6253 to induce microparticle release from various cell lines in the process of HDL biogenesis. METHODS The effects of CS-6253 on microparticle formation through the ABCA1 transporter were examined in vitro using cell-based systems and pharmacologic manipulations. RESULTS In cell-based systems combined with fast performance liquid chromatography and nano-sight-tracking analysis, we show that ABCA1 and CS-6253 mediate and increase the production of microparticles containing cholesterol. CS-6253 in baby hamster kidney cells not expressing ABCA1 (baby hamster kidney mock cells) did not alter cholesterol removal across the plasma membrane in the absence of ABCA1 expression even at high concentrations. We report that CS-6253 is not cytotoxic. CONCLUSIONS The present study shows that CS-6253 generates cholesterol containing microparticles with size heterogeneity (100-350 nm) in an ABCA1-dependent manner. We show that microparticles contribute to cell cholesterol efflux from monocyte-macrophage cells. At high doses, CS-6253 is not able to extract cholesterol from cells not expressing ABCA1, indicating that CS-6253 requires ABCA1 cooperation for cholesterol mobilization. We conclude that CS-6253 is an ABCA1 agonist peptide that promotes cellular cholesterol efflux through HDL biogenesis and microparticle formation.
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229
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He Y, Kothari V, Bornfeldt KE. High-Density Lipoprotein Function in Cardiovascular Disease and Diabetes Mellitus. Arterioscler Thromb Vasc Biol 2019; 38:e10-e16. [PMID: 29367232 DOI: 10.1161/atvbaha.117.310222] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yi He
- From the Division of Metabolism, Endocrinology and Nutrition, Department of Medicine (Y.H., V.K., K.E.B.) and Department of Pathology (K.E.B.), University of Washington Medicine Diabetes Institute, University of Washington School of Medicine, Seattle
| | - Vishal Kothari
- From the Division of Metabolism, Endocrinology and Nutrition, Department of Medicine (Y.H., V.K., K.E.B.) and Department of Pathology (K.E.B.), University of Washington Medicine Diabetes Institute, University of Washington School of Medicine, Seattle
| | - Karin E Bornfeldt
- From the Division of Metabolism, Endocrinology and Nutrition, Department of Medicine (Y.H., V.K., K.E.B.) and Department of Pathology (K.E.B.), University of Washington Medicine Diabetes Institute, University of Washington School of Medicine, Seattle.
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230
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Abstract
The transport of specific molecules across lipid membranes is an essential function of all living organisms. The processes are usually mediated by specific transporters. One of the largest transporter families is the ATP-binding cassette (ABC) family. More than 40 ABC transporters have been identified in human, which are divided into 7 subfamilies (ABCA to ABCG) based on their gene structure, amino acid sequence, domain organization, and phylogenetic analysis. Of them, at least 11 ABC transporters including P-glycoprotein (P-GP/ABCB1), multidrug resistance-associated proteins (MRPs/ABCCs), and breast cancer resistance protein (BCRP/ABCG2) are involved in multidrug resistance (MDR) development. These ABC transporters are expressed in various tissues such as the liver, intestine, kidney, and brain, playing important roles in absorption, distribution, and excretion of drugs. Some ABC transporters are also involved in diverse cellular processes such as maintenance of osmotic homeostasis, antigen processing, cell division, immunity, cholesterol, and lipid trafficking. Several human diseases such as cystic fibrosis, sitosterolemia, Tangier disease, intrahepatic cholestasis, and retinal degeneration are associated with mutations in corresponding transporters. This chapter will describe function and expression of several ABC transporters (such as P-GP, BCRP, and MRPs), their substrates and inhibitors, as well as their clinical significance.
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Affiliation(s)
- Xiaodong Liu
- China Pharmaceutical University, Nanjing, China.
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231
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Lupo PJ, Brown AL, Arroyo VM, Kamdar KY, Belmont JW, Scheurer ME, Leisenring WM, Gramatges MM, Okcu MF, Yasui Y, Oeffinger KC, Robison LL, Armstrong GT, Bhatia S. DNA methylation and obesity in survivors of pediatric acute lymphoblastic leukemia: A report from the Childhood Cancer Survivor Study. Genes Chromosomes Cancer 2018; 58:52-59. [PMID: 30382603 DOI: 10.1002/gcc.22701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 10/29/2018] [Accepted: 10/29/2018] [Indexed: 12/19/2022] Open
Abstract
Because survivors of pediatric acute lymphoblastic leukemia (ALL) are more likely to be obese than unaffected contemporaries, we compared DNA methylation profiles between normal-weight and obese survivors at adiposity-associated CpG sites previously-reported by epigenome-wide association studies (EWAS) of body mass index (BMI) in the general population. We selected 96 ALL survivors from the Childhood Cancer Survivor Study: 48 obese and 48 normal weight. The Illumina HumanMethylation450 BeadChip was used to compare DNA methylation at 211 loci identified in EWAS of BMI in the general population. Thirty-nine loci were associated (false discovery rate <0.05) with obesity among survivors who only received chemotherapy (n = 49). No loci were significantly associated with obesity among CRT-exposed survivors (n = 47). Our results suggest that previously identified BMI-DNA methylation loci are associated with obesity in ALL survivors who were spared CRT, while no loci were significantly associated with obesity in survivors who received CRT.
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Affiliation(s)
- Philip J Lupo
- Baylor College of Medicine, Department of Pediatrics, Houston, Texas
| | - Austin L Brown
- Baylor College of Medicine, Department of Pediatrics, Houston, Texas
| | - Vidal M Arroyo
- Baylor College of Medicine, Department of Pediatrics, Houston, Texas
| | - Kala Y Kamdar
- Baylor College of Medicine, Department of Pediatrics, Houston, Texas
| | - John W Belmont
- Baylor College of Medicine, Department of Pediatrics, Houston, Texas
| | | | - Wendy M Leisenring
- Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, Washington
| | | | - M. Fatih Okcu
- Baylor College of Medicine, Department of Pediatrics, Houston, Texas
| | - Yutaka Yasui
- St. Jude Children's Research Hospital, Department of Epidemiology and Cancer Control, Memphis, Tennessee
| | | | - Leslie L Robison
- St. Jude Children's Research Hospital, Department of Epidemiology and Cancer Control, Memphis, Tennessee
| | - Gregory T Armstrong
- St. Jude Children's Research Hospital, Department of Epidemiology and Cancer Control, Memphis, Tennessee
| | - Smita Bhatia
- University of Alabama at Birmingham, Department of Pediatrics, Birmingham, Alabama
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232
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Zhang M, Zeng X, Yang Q, Xu J, Liu Z, Zhou Y, Cao Y, Zhang X, An X, Xu Y, Huang L, Han Z, Wang T, Wu C, Fulton DJ, Weintraub NL, Hong M, Huo Y. Ablation of Myeloid ADK (Adenosine Kinase) Epigenetically Suppresses Atherosclerosis in ApoE -/- (Apolipoprotein E Deficient) Mice. Arterioscler Thromb Vasc Biol 2018; 38:2780-2792. [PMID: 30571174 PMCID: PMC6309817 DOI: 10.1161/atvbaha.118.311806] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 09/24/2018] [Indexed: 12/16/2022]
Abstract
Objective- Monocyte-derived foam cells are one of the key players in the formation of atherosclerotic plaques. Adenosine receptors and extracellular adenosine have been demonstrated to modulate foam cell formation. ADK (adenosine kinase) is a major enzyme regulating intracellular adenosine levels, but its functional role in myeloid cells remains poorly understood. To enhance intracellular adenosine levels in myeloid cells, ADK was selectively deleted in novel transgenic mice using Cre-LoxP technology, and foam cell formation and the development of atherosclerotic lesions were determined. Approach and Results- ADK was upregulated in macrophages on ox-LDL (oxidized low-density lipoprotein) treatment in vitro and was highly expressed in foam cells in atherosclerotic plaques. Atherosclerotic mice deficient in ADK in myeloid cells were generated by breeding floxed ADK (ADKF/F) mice with LysM-Cre (myeloid-specific Cre recombinase expressing) mice and ApoE-/- (apolipoprotein E deficient) mice. Mice absent ADK in myeloid cells exhibited much smaller atherosclerotic plaques compared with controls. In vitro assays showed that ADK deletion or inhibition resulted in increased intracellular adenosine and reduced DNA methylation of the ABCG1 (ATP-binding cassette transporter G1) gene. Loss of methylation was associated with ABCG1 upregulation, enhanced cholesterol efflux, and eventually decreased foam cell formation. Conclusions- Augmentation of intracellular adenosine levels through ADK knockout in myeloid cells protects ApoE-/- mice against atherosclerosis by reducing foam cell formation via the epigenetic regulation of cholesterol trafficking. ADK inhibition is a promising approach for the treatment of atherosclerotic diseases.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily G, Member 1/genetics
- ATP Binding Cassette Transporter, Subfamily G, Member 1/metabolism
- Adenosine Kinase/deficiency
- Adenosine Kinase/genetics
- Animals
- Aorta/enzymology
- Aorta/pathology
- Aortic Diseases/enzymology
- Aortic Diseases/genetics
- Aortic Diseases/pathology
- Aortic Diseases/prevention & control
- Atherosclerosis/enzymology
- Atherosclerosis/genetics
- Atherosclerosis/pathology
- Atherosclerosis/prevention & control
- Cells, Cultured
- Cholesterol/metabolism
- DNA Methylation
- Disease Models, Animal
- Epigenesis, Genetic
- Female
- Foam Cells/enzymology
- Foam Cells/pathology
- Male
- Mice, Inbred C57BL
- Mice, Knockout, ApoE
- Plaque, Atherosclerotic
- Signal Transduction
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Affiliation(s)
- Min Zhang
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xianqiu Zeng
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Qiuhua Yang
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Jiean Xu
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Zhiping Liu
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Yaqi Zhou
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Yapeng Cao
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xiaoyu Zhang
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xiaofei An
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Endocrinology, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, China
| | - Yiming Xu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Lei Huang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Zhen Han
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Tao Wang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Chaodong Wu
- Department of Nutrition and Food Science, Texas A&M University, College Station, TX 77840, USA
| | - David J Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Neal L Weintraub
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Mei Hong
- Drug Discovery Center, State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yuqing Huo
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, GA 30912, USA
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233
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IL-34 promotes foam cell formation by enhancing CD36 expression through p38 MAPK pathway. Sci Rep 2018; 8:17347. [PMID: 30478377 PMCID: PMC6255782 DOI: 10.1038/s41598-018-35485-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 11/01/2018] [Indexed: 02/05/2023] Open
Abstract
Atherosclerosis is characterized as a chronic inflammatory disease and macrophage-derived foam cells play a central role during the pathologic processes. A newly discovered cytokine interleukin-34 (IL-34) is closely associated with various inflammatory and autoimmune diseases. Expression of IL-34 in obesity, inflammatory bowel disease (IBD), rheumatoid arthritis (RA), lupus nephritis and coronary artery diseases (CAD) are significantly elevated. However, the role of IL-34 in atherosclerosis remains unknown. In our present study, we found that IL-34 treatment markedly increased the uptake of oxLDL, intracellular total and esterified cholesterol content but not cholesterol efflux, subsequently promoted foam cell formation through up-regulating CD36 expression via p38 MAPK signal pathway in bone marrow derived macrophages (BMDMs). Furthermore, treatment with IL-34 significantly elevated the oxLDL-induced up-regulation of pro-inflammatory cytokines. Our results conclude that IL-34 facilitates foam cell formation by increasing CD36-mediated lipid uptake and suggest a potential new risk biomarker for atherosclerosis.
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Huang JV, Cardenas A, Colicino E, Schooling CM, Rifas-Shiman SL, Agha G, Zheng Y, Hou L, Just AC, Litonjua AA, DeMeo DL, Lin X, Oken E, Hivert MF, Baccarelli AA. DNA methylation in blood as a mediator of the association of mid-childhood body mass index with cardio-metabolic risk score in early adolescence. Epigenetics 2018; 13:1072-1087. [PMID: 30412002 PMCID: PMC6342073 DOI: 10.1080/15592294.2018.1543503] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/20/2018] [Accepted: 10/22/2018] [Indexed: 12/16/2022] Open
Abstract
Obesity is associated with higher cardio-metabolic risk even in childhood and adolescence; whether this association is mediated by epigenetic mechanisms remains unclear. We examined the extent to which mid-childhood body mass index (BMI) z-score (median age 7.7 years) was associated with cardio-metabolic risk score in early adolescence (median age 12.9 years) via mid-childhood DNA methylation among 265 children in the Project Viva. We measured DNA methylation in leukocytes using the Infinium Human Methylation450K BeadChip. We assessed mediation CpG-by-CpG using epigenome-wide association analyses, high-dimensional mediation analysis, and natural effect models. We observed mediation by mid-childhood DNA methylation at 6 CpGs for the association between mid-childhood BMI z-score and cardio-metabolic risk score in early adolescence in the high-dimensional mediation analysis (accounting for 10% of the total effect) and in the natural effect model (β = 0.04, P = 3.2e-2, accounting for 13% of the total effect). The natural direct effect of BMI z-score on cardio-metabolic risk score was still evident (β = 0.27, P = 1.1e-25). We also observed mediation by mid-childhood DNA methylation at 5 CpGs that was in the opposite direction from the total effect (natural effect model: β = -0.04, P = 2.0e-2). Mediation in different directions implies a complex role of DNA methylation in the association between BMI and cardio-metabolic risk and needs further investigation. Future studies with larger sample size and greater variability in cardio-metabolic risk will further help elucidate the role of DNA methylation for cardio-metabolic risk.
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Affiliation(s)
- Jian V. Huang
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, NY, NY, USA
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People’s Republic of China
| | - Andres Cardenas
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Elena Colicino
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - C. Mary Schooling
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People’s Republic of China
- Graduate School of Public Health and Health Policy, City University of New York, New York, USA
| | - Sheryl L. Rifas-Shiman
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Golareh Agha
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, NY, NY, USA
| | - Yinan Zheng
- Center for Population Epigenetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Lifang Hou
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Allan C. Just
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Augusto A. Litonjua
- Division of Pediatric Pulmonary Medicine, Department of Pediatrics, University of Rochester Medical Center, Rochester, NY, USA
| | - Dawn L. DeMeo
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA, USA
| | - Xihong Lin
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Emily Oken
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Marie-France Hivert
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
- Diabetes Unit, Massachusetts General Hospital, Boston, MA, USA
| | - Andrea A. Baccarelli
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, NY, NY, USA
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235
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Imperio GE, Javam M, Lye P, Constantinof A, Dunk CE, Reis FM, Lye SJ, Gibb W, Matthews SG, Ortiga-Carvalho TM, Bloise E. Gestational age-dependent gene expression profiling of ATP-binding cassette transporters in the healthy human placenta. J Cell Mol Med 2018; 23:610-618. [PMID: 30407748 PMCID: PMC6307765 DOI: 10.1111/jcmm.13966] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 09/05/2018] [Accepted: 09/23/2018] [Indexed: 12/18/2022] Open
Abstract
The ATP‐binding cassette (ABC) transporters control placental transfer of several nutrients, steroids, immunological factors, chemicals, and drugs at the maternal‐fetal interface. We and others have demonstrated a gestational age‐dependent expression pattern of two ABC transporters, P‐glycoprotein and breast cancer resistance protein throughout pregnancy. However, no reports have comprehensively elucidated the expression pattern of all 50 ABC proteins, comparing first trimester and term human placentae. We hypothesized that placental ABC transporters are expressed in a gestational‐age dependent manner in normal human pregnancy. Using the TaqMan® Human ABC Transporter Array, we assessed the mRNA expression of all 50 ABC transporters in first (first trimester, n = 8) and third trimester (term, n = 12) human placentae and validated the resulting expression of selected ABC transporters using qPCR, Western blot and immunohistochemistry. A distinct gene expression profile of 30 ABC transporters was observed comparing first trimester vs. term placentae. Using individual qPCR in selected genes, we validated the increased expression of ABCA1 (P < 0.01), ABCA6 (P < 0.001), ABCA9 (P < 0.001) and ABCC3 (P < 0.001), as well as the decreased expression of ABCB11 (P < 0.001) and ABCG4 (P < 0.01) with advancing gestation. One important lipid transporter, ABCA6, was selected to correlate protein abundance and characterize tissue localization. ABCA6 exhibited increased protein expression towards term and was predominantly localized to syncytiotrophoblast cells. In conclusion, expression patterns of placental ABC transporters change as a function of gestational age. These changes are likely fundamental to a healthy pregnancy given the critical role that these transporters play in the regulation of steroidogenesis, immunological responses, and placental barrier function and integrity.
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Affiliation(s)
- Guinever E Imperio
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Laboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Mohsen Javam
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Phetcharawan Lye
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | | | - Caroline E Dunk
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Fernando M Reis
- Division of Human Reproduction, Department of Obstetrics and Gynecology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Stephen J Lye
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - William Gibb
- Department of Obstetrics & Gynecology and Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Stephen G Matthews
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Tania Maria Ortiga-Carvalho
- Laboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Enrrico Bloise
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Laboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
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236
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Raut S, Mooberry L, Sabnis N, Garud A, Dossou AS, Lacko A. Reconstituted HDL: Drug Delivery Platform for Overcoming Biological Barriers to Cancer Therapy. Front Pharmacol 2018; 9:1154. [PMID: 30374303 PMCID: PMC6196266 DOI: 10.3389/fphar.2018.01154] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 09/24/2018] [Indexed: 12/12/2022] Open
Abstract
Drug delivery to malignant tumors is limited by several factors, including off-target toxicities and suboptimal benefits to cancer patient. Major research efforts have been directed toward developing novel technologies involving nanoparticles (NPs) to overcome these challenges. Major obstacles, however, including, opsonization, transport across cancer cell membranes, multidrug-resistant proteins, and endosomal sequestration of the therapeutic agent continue to limit the efficiency of cancer chemotherapy. Lipoprotein-based drug delivery technology, "nature's drug delivery system," while exhibits highly desirable characteristics, it still needs substantial investment from private/government stakeholders to promote its eventual advance to the bedside. Consequently, this review focuses specifically on the synthetic (reconstituted) high-density lipoprotein rHDL NPs, evaluating their potential to overcome specific biological barriers and the challenges of translation toward clinical utilization and commercialization. This highly robust drug transport system provides site-specific, tumor-selective delivery of anti-cancer agents while reducing harmful off-target effects. Utilizing rHDL NPs for anti-cancer therapeutics and tumor imaging revolutionizes the future strategy for the management of a broad range of cancers and other diseases.
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Affiliation(s)
- Sangram Raut
- Lipoprotein Drug Delivery Research Laboratory, Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Linda Mooberry
- Lipoprotein Drug Delivery Research Laboratory, Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Nirupama Sabnis
- Lipoprotein Drug Delivery Research Laboratory, Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Ashwini Garud
- Lipoprotein Drug Delivery Research Laboratory, Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Akpedje Serena Dossou
- Lipoprotein Drug Delivery Research Laboratory, Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Andras Lacko
- Lipoprotein Drug Delivery Research Laboratory, Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States
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237
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Iqbal J, Walsh MT, Hammad SM, Cuchel M, Rader DJ, Hussain MM. ATP binding cassette family A protein 1 determines hexosylceramide and sphingomyelin levels in human and mouse plasma. J Lipid Res 2018; 59:2084-2097. [PMID: 30279221 DOI: 10.1194/jlr.m087502] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/19/2018] [Indexed: 12/31/2022] Open
Abstract
Sphingolipids, including ceramide, SM, and hexosylceramide (HxCer), are carried in the plasma by lipoproteins. They are possible markers of metabolic diseases, but little is known about their control. We previously showed that microsomal triglyceride transfer protein (MTP) is critical to determine plasma ceramide and SM, but not HxCer, levels. In human plasma and mouse models, we examined possible HxCer-modulating pathways, including the role of ABCA1 in determining sphingolipid plasma concentrations. Compared with control samples, plasma from patients with Tangier disease (deficient in ABCA1) had significantly lower HxCer (-69%) and SM (-40%) levels. Similarly, mice deficient in hepatic and intestinal ABCA1 had significantly reduced HxCer (-79%) and SM (-85%) levels. Tissue-specific ablation studies revealed that hepatic ABCA1 determines plasma HxCer and SM levels; that ablation of MTP and ABCA1 in the liver and intestine reduces plasma HxCer, SM, and ceramide levels; and that hepatic and intestinal MTP contribute to plasma ceramide levels, whereas only hepatic MTP modulates plasma SM levels. These results identify the contribution of ABCA1 to plasma SM and HxCer levels and suggest that MTP and ABCA1 are critical determinants of plasma sphingolipid levels.
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Affiliation(s)
- Jahangir Iqbal
- Department of Cell Biology, SUNY Downstate Medical Center, Brooklyn, NY.,King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Eastern Region, Ministry of National Guard Health Affairs, Al Ahsa, Saudi Arabia
| | - Meghan T Walsh
- Department of Cell Biology, SUNY Downstate Medical Center, Brooklyn, NY
| | - Samar M Hammad
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC
| | - Marina Cuchel
- Institute for Translational Medicine and Therapeutics, Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA
| | - Daniel J Rader
- Institute for Translational Medicine and Therapeutics, Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA
| | - M Mahmood Hussain
- Department of Cell Biology, SUNY Downstate Medical Center, Brooklyn, NY .,Diabetes and Obesity Research Center, New York University Winthrop Hospital, Mineola, NY.,Department of Veterans Affairs New York Harbor Healthcare System, Brooklyn, NY
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238
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Tort O, Escribà T, Egaña-Gorroño L, de Lazzari E, Cofan M, Fernandez E, Gatell JM, Martinez E, Garcia F, Arnedo M. Cholesterol efflux responds to viral load and CD4 counts in HIV+ patients and is dampened in HIV exposed. J Lipid Res 2018; 59:2108-2115. [PMID: 30213800 PMCID: PMC6210904 DOI: 10.1194/jlr.m088153] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/29/2018] [Indexed: 01/30/2023] Open
Abstract
Cholesterol efflux (CE) capacity has been inversely associated with atherosclerosis and may provide an insight on inflammation occurring in human immunodeficiency virus (HIV) individuals. We address this by studying CE in HIV patients at different stages of HIV disease progression. In this cross-sectional study, CE from ApoB-depleted plasma, lipids levels, viral load (VL), CD4+/CD8+ T-cells, high-sensitive C-reactive protein (hsCRP), and lipoprotein (a) were evaluated in untreated HIV-infected patients (UHIVs; n = 43), elite controllers (ECs; n = 8), HIV-exposed seronegative individuals (HESNs; n = 32), and healthy controls (HCs; n = 14). Among UHIVs, those with CD4+ <500 cells/mm3 presented the lowest significant CE, HDL cholesterol (HDL-C), and ApoAI levels. ECs showed similar HDL-C, ApoAI, and CE compared with HCs. Among UHIVs, CE positively correlated with CD4+ T-cell counts (Beta: 1.05; 95% CI: 1.02; 1.07), and for VL higher than 3.8 log, CE was inversely associated with VL (Beta: 0.70; 95% CI: 0.51; 0.95). Remarkably, HESNs presented higher CE (0.78 ± 0.14) than UHIVs (0.65 ± 0.17; P = 0.0005), but lower than HCs (0.90 ± 0.13; P = 0.009). hsCRP levels were highest in the UHIV group (0.45 ± 0.49). CE was sensitive to HIV disease progression. Low CE in HIV patients was associated with lower CD4+ T-cells and higher VL and hsCRP. CE was also lower in HESNs compared with HCs. Our results suggest that immune status secondary to HIV progression and exposure influence plasma HDL-CE capacity.
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Affiliation(s)
- Olivia Tort
- Group of Genomics and Pharmacogenomics, Acquired Immune Deficiency Syndrome Research Group, Catalan Project for the Development of a Human Immunodeficiency Virus Vaccine (HIVACAT), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Spain
| | - Tuixent Escribà
- Group of Genomics and Pharmacogenomics, Acquired Immune Deficiency Syndrome Research Group, Catalan Project for the Development of a Human Immunodeficiency Virus Vaccine (HIVACAT), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Spain
| | - Lander Egaña-Gorroño
- Group of Genomics and Pharmacogenomics, Acquired Immune Deficiency Syndrome Research Group, Catalan Project for the Development of a Human Immunodeficiency Virus Vaccine (HIVACAT), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Spain
| | - Elisa de Lazzari
- Infectious Diseases Service, Hospital Clínic-IDIBAPS, Laboratory of Retrovirology and Viral Immunopathogenesis, University of Barcelona, Barcelona, Spain
| | - Montserrat Cofan
- Lipid Clinic, Department of Endocrinology and Nutrition, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Emma Fernandez
- Infectious Diseases Service, Hospital Clínic-IDIBAPS, Laboratory of Retrovirology and Viral Immunopathogenesis, University of Barcelona, Barcelona, Spain
| | - José Maria Gatell
- Hospital Clinic/IDIBAPS, University of Barcelona, ViiV Healthcare, Barcelona, Spain
| | - Esteban Martinez
- Infectious Diseases Service, Hospital Clínic-IDIBAPS, Laboratory of Retrovirology and Viral Immunopathogenesis, University of Barcelona, Barcelona, Spain
| | - Felipe Garcia
- Infectious Diseases Service, Hospital Clínic-IDIBAPS, Laboratory of Retrovirology and Viral Immunopathogenesis, University of Barcelona, Barcelona, Spain
| | - Mireia Arnedo
- Group of Genomics and Pharmacogenomics, Acquired Immune Deficiency Syndrome Research Group, Catalan Project for the Development of a Human Immunodeficiency Virus Vaccine (HIVACAT), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Spain
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239
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Tomato Juice Supplementation Influences the Gene Expression Related to Steatosis in Rats. Nutrients 2018; 10:nu10091215. [PMID: 30200543 PMCID: PMC6165399 DOI: 10.3390/nu10091215] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 08/25/2018] [Accepted: 08/31/2018] [Indexed: 12/12/2022] Open
Abstract
The objective of this work was to identify the effect of tomato juice on the expression of genes and levels of metabolites related to steatosis in rats. Male Sprague Dawley rats (8 weeks-old) were grouped (6 rats/group) in four experimental groups: NA (normal diet and water), NL (normal diet and tomato juice), HA (high-fat diet and water), and HL (high-fat diet and tomato juice). After an intervention period of 5 weeks, rats were sacrificed and biochemical parameters, biomarkers of oxidative stress, liver metabolites, and gene expression were determined. Although the H diet provoked dislipemia related to steatosis, no changes in isoprostanes or liver malondialdehyde (MDA) were observed. Changes in the gene expression of the HA group were produced by the high consumption of fat, whereas the consumption of tomato juice had different effects, depending on the diet. In the NL group, the genes involved in β-oxidation were upregulated, and in groups NL and HL upregulation of CD36 and downregulation of APOB and LPL were observed. In addition, in the HL group the accumulation of lycopene upregulated the genes FXR and HNF4A, which have been suggested as preventive factors in relation to steatosis. Regarding the metabolomics study, intake of tomato juice stimulated the biosynthesis of glutathione and amino acids of the transulfurization pathway, increasing the levels of metabolites related to the antioxidant response.
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240
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Wang X, Luo J, Li N, Liu L, Han X, Liu C, Zuo X, Jiang X, Li Y, Xu Y, Si S. E3317 promotes cholesterol efflux in macrophage cells via enhancing ABCA1 expression. Biochem Biophys Res Commun 2018; 504:68-74. [DOI: 10.1016/j.bbrc.2018.08.125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 08/19/2018] [Indexed: 10/28/2022]
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241
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Myeloid apolipoprotein E controls dendritic cell antigen presentation and T cell activation. Nat Commun 2018; 9:3083. [PMID: 30082772 PMCID: PMC6079066 DOI: 10.1038/s41467-018-05322-1] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 06/24/2018] [Indexed: 01/06/2023] Open
Abstract
Cholesterol homeostasis has a pivotal function in regulating immune cells. Here we show that apolipoprotein E (apoE) deficiency leads to the accumulation of cholesterol in the cell membrane of dendritic cells (DC), resulting in enhanced MHC-II-dependent antigen presentation and CD4+ T-cell activation. Results from WT and apoE KO bone marrow chimera suggest that apoE from cells of hematopoietic origin has immunomodulatory functions, regardless of the onset of hypercholesterolemia. Humans expressing apoE4 isoform (ε4/3–ε4/4) have increased circulating levels of activated T cells compared to those expressing WT apoE3 (ε3/3) or apoE2 isoform (ε2/3–ε2/2). This increase is caused by enhanced antigen-presentation by apoE4-expressing DCs, and is reversed when these DCs are incubated with serum containing WT apoE3. In summary, our study identifies myeloid-produced apoE as a key physiological modulator of DC antigen presentation function, paving the way for further explorations of apoE as a tool to improve the management of immune diseases. Cholesterol homeostasis can modulate immunity via multiple pathways. Here the authors show that apolipoprotein E, an important regulator of cholesterol, produced by myeloid cells can regulate T cell activation by controlling the antigen presentation activity of dendritic cells in both humans and mice.
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242
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Abstract
Various fungi and bacteria can colonize in the brain and produce physical alterations seen in Alzheimer’s disease (AD). Environmental and genetic factors affect the occurrence of fungal colonization, and how fungi can grow, enter the brain, and interact with the innate immune system. The essence of AD development is the defeat of the innate immune system, whether through vulnerable patient health status or treatment that suppresses inflammation by suppressing the innate immune system. External and mechanical factors that lead to inflammation are a door for pathogenic opportunity. Current research associates the presence of fungi in the etiology of AD and is shown in cerebral tissue at autopsy. From the time of the discovery of AD, much speculation exists for an infective cause. Identifying any AD disease organism is obscured by processes that can take place over years. Amyloid protein deposits are generally considered to be evidence of an intrinsic response to stress or imbalance, but instead amyloid may be evidence of the innate immune response which exists to destroy fungal colonization through structural interference and cytotoxicity. Fungi can remain ensconced for a long time in niches or inside cells, and it is the harboring of fungi that leads to repeated reinfection and slow wider colonization that eventually leads to a grave outcome. Although many fungi and bacteria are associated with AD affected tissues, discussion here focuses on Candida albicans as the archetype of human fungal pathology because of its wide proliferation as a commensal fungus, extensive published research, numerous fungal morphologies, and majority proliferation in AD tissues.
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Affiliation(s)
- Bodo Parady
- Children's Hospital Oakland Research Institute, Oakland, CA, USA.,Visiting Scholar, University of California, Berkeley, Berkeley CA, USA
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243
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Singh PK, Khatri I, Jha A, Pretto CD, Spindler KR, Arumugaswami V, Giri S, Kumar A, Bhasin MK. Determination of system level alterations in host transcriptome due to Zika virus (ZIKV) Infection in retinal pigment epithelium. Sci Rep 2018; 8:11209. [PMID: 30046058 PMCID: PMC6060127 DOI: 10.1038/s41598-018-29329-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/10/2018] [Indexed: 12/26/2022] Open
Abstract
Previously, we reported that Zika virus (ZIKV) causes ocular complications such as chorioretinal atrophy, by infecting cells lining the blood-retinal barrier, including the retinal pigment epithelium (RPE). To understand the molecular basis of ZIKV-induced retinal pathology, we performed a meta-analysis of transcriptome profiles of ZIKV-infected human primary RPE and other cell types infected with either ZIKV or other related flaviviruses (Japanese encephalitis, West Nile, and Dengue). This led to identification of a unique ZIKV infection signature comprising 43 genes (35 upregulated and 8 downregulated). The major biological processes perturbed include SH3/SH2 adaptor activity, lipid and ceramide metabolism, and embryonic organ development. Further, a comparative analysis of some differentially regulated genes (ABCG1, SH2B3, SIX4, and TNFSF13B) revealed that ZIKV induced their expression relatively more than dengue virus did in RPE. Importantly, the pharmacological inhibition of ABCG1, a membrane transporter of cholesterol, resulted in reduced ZIKV infectivity. Interestingly, the ZIKV infection signature revealed the downregulation of ALDH5A1 and CHML, genes implicated in neurological (cognitive impairment, expressive language deficit, and mild ataxia) and ophthalmic (choroideremia) disorders, respectively. Collectively, our study revealed that ZIKV induces differential gene expression in RPE cells, and the identified genes/pathways (e.g., ABCG1) could potentially contribute to ZIKV-associated ocular pathologies.
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Affiliation(s)
- Pawan Kumar Singh
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, MI, USA
| | - Indu Khatri
- BIDMC Genomics, Proteomics, Bioinformatics and Systems Biology Centre, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Division of Interdisciplinary Medicine and Biotechnology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Alokkumar Jha
- BIDMC Genomics, Proteomics, Bioinformatics and Systems Biology Centre, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Division of Interdisciplinary Medicine and Biotechnology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Carla D Pretto
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Katherine R Spindler
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | | | - Shailendra Giri
- Department of Neurology, Henry Ford Health System, Detroit, MI, USA
| | - Ashok Kumar
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, MI, USA.
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI, USA.
| | - Manoj K Bhasin
- BIDMC Genomics, Proteomics, Bioinformatics and Systems Biology Centre, Beth Israel Deaconess Medical Center, Boston, MA, USA.
- Division of Interdisciplinary Medicine and Biotechnology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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244
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Liu H, Li X, Song Y, Wang Z. MicroRNA-217 attenuates intima-media complex thickness of ascending aorta measured by ultrasound bio-microscopy and inhibits inflammation and lipid metabolism in atherosclerotic models of ApoE -/- mice. Lipids Health Dis 2018; 17:170. [PMID: 30041636 PMCID: PMC6058357 DOI: 10.1186/s12944-018-0825-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/11/2018] [Indexed: 12/15/2022] Open
Abstract
Background Little investigation was done to test the efficiency of microRNA-217 (miR-217) on atherosclerosis in vivo. Methods ApoE−/− mice were used to construct atherosclerotic models and ultrasound bio-microscopy (UBM) was applied to detect the intima–media thickness (IMT) of the ascending aorta. The serum level of miR-217 and correlation with IMT was investigated. After miR-217 mimic administration, the IMT, inflammation, and lipid-associated molecules were assayed. Results The serum level of miR-217 was reduced in ApoE−/− mice and showed a negative correlation with the IMT of the ascending aorta (r2 = 0.5899, p < 0.0001). miR-217 mimic administration attenuated IMT and down-regulated the level of serum triglyceride (TG), total cholesterol (TC), and low-density-lipoprotein cholesterol (LDL-C), while it could up-regulate high-density lipoprotein cholesterol (HDL-C). Inflammation relevant genes, such as F4/80, tumor necrosis factor (TNF)-α, interleukin (IL)-1, IL-6, and monocyte chemoattractant protein (MCP)-1, and lipid metabolism associated gene, such as LDL receptor, class A scavenger receptors (SR-A), scavenger receptor class B type I (SR-BI), CD36, ATP binding cassette subfamily A member 1 (ABCA1), and ATP binding cassette subfamily G member 1 (ABCG1) in the aorta were significantly down-regulated in miR-217 group when compared with atherosclerosis group. Conclusion miR-217 could down-regulate IMT and modulate the inflammation and lipid metabolism process, which indicates that miR-217 could be a potential treatment option.
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Affiliation(s)
- Haina Liu
- Department of Ultrasonography, The Affiliated Qingdao Municipal Hospital of Qingdao University, No.1 Jiaozhou Road, Qingdao, 266011, China
| | - Xia Li
- Department of Ultrasonography, The Affiliated Qingdao Municipal Hospital of Qingdao University, No.1 Jiaozhou Road, Qingdao, 266011, China
| | - Yanpeng Song
- Department of Ultrasonography, Jiaozhou Central Hospital of Qingdao, No.29 Xuzhou Road, Jiaozhou, 266300, China
| | - Zhibin Wang
- Department of Ultrasonography, The Affiliated Hospital of Qingdao University, No.16 Jiangsu Road, Qingdao, 266003, China.
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245
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Kajani S, Curley S, McGillicuddy FC. Unravelling HDL-Looking beyond the Cholesterol Surface to the Quality Within. Int J Mol Sci 2018; 19:ijms19071971. [PMID: 29986413 PMCID: PMC6073561 DOI: 10.3390/ijms19071971] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/03/2018] [Accepted: 07/04/2018] [Indexed: 12/11/2022] Open
Abstract
High-density lipoprotein (HDL) particles have experienced a turbulent decade of falling from grace with widespread demotion from the most-sought-after therapeutic target to reverse cardiovascular disease (CVD), to mere biomarker status. HDL is slowly emerging from these dark times due to the HDL flux hypothesis wherein measures of HDL cholesterol efflux capacity (CEC) are better predictors of reduced CVD risk than static HDL-cholesterol (HDL-C) levels. HDL particles are emulsions of metabolites, lipids, protein, and microRNA (miR) built on the backbone of Apolipoprotein A1 (ApoA1) that are growing in their complexity due to the higher sensitivity of the respective “omic” technologies. Our understanding of particle composition has increased dramatically within this era and has exposed how our understanding of these particles to date has been oversimplified. Elucidation of the HDL proteome coupled with the identification of specific miRs on HDL have highlighted the “hormonal” characteristics of HDL in that it carries and delivers messages systemically. HDL can dock to most peripheral cells via its receptors, including SR-B1, ABCA1, and ABCG1, which may be a critical step for facilitating HDL-to-cell communication. The composition of HDL particles is, in turn, altered in numerous disease states including diabetes, auto-immune disease, and CVD. The consequence of changes in composition, however, on subsequent biological activities of HDL is currently poorly understood and this is an important avenue for the field to explore in the future. Improving HDL particle quality as opposed to HDL quantity may, in turn, prove a more beneficial investment to reduce CVD risk.
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Affiliation(s)
- Sarina Kajani
- Cardiometabolic Research Group, Diabetes Complications Research Centre, UCD Conway Institute, University College Dublin, Belfield, 4 Dublin, Ireland.
| | - Sean Curley
- Cardiometabolic Research Group, Diabetes Complications Research Centre, UCD Conway Institute, University College Dublin, Belfield, 4 Dublin, Ireland.
| | - Fiona C McGillicuddy
- Cardiometabolic Research Group, Diabetes Complications Research Centre, UCD Conway Institute, University College Dublin, Belfield, 4 Dublin, Ireland.
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246
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Lipid reducing activity of novel cholic acid (CA) analogs: Design, synthesis and preliminary mechanism study. Bioorg Chem 2018; 80:396-407. [PMID: 29986186 DOI: 10.1016/j.bioorg.2018.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 06/27/2018] [Accepted: 07/01/2018] [Indexed: 12/23/2022]
Abstract
Bile acids, initially discovered as endogenous ligands of farnesoid X receptor (FXR), play a central role in the regulation of triglyceride and cholesterol metabolism and have recently emerged as a privileged structure for interacting with nuclear receptors relevant to a large array of metabolic processes. In this paper, phenoxy containing cholic acid derivatives with excellent drug-likeness have been designed, synthesized, and assayed as agents against cholesterol accumulation in Raw264.7 macrophages. The most active compound 14b reduced total cholesterol accumulation in Raw264.7 cells up to 30.5% at non-toxic 10 μM and dosage-dependently attenuated oxLDL-induced foam cell formation. Western blotting and qPCR results demonstrate that 14b reduced both cholesterol and lipid in Raw264.7 cells through (1) increasing the expression of cholesterol transporters ABCA1 and ABCG1, (2) accelerating ApoA1-mediated cholesterol efflux. Through a cell-based luciferase reporter assay and molecular docking analysis, LXR was identified as the potential target for 14b. Interestingly, unlike conventional LXR agonist, 14b did not increase lipogenesis gene SREBP-1c expression. Overall, these diverse properties disclosed herein highlight the potential of 14b as a promising lead for further development of multifunctional agents in the therapy of cardiovascular disease.
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247
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Sonett J, Goldklang M, Sklepkiewicz P, Gerber A, Trischler J, Zelonina T, Westerterp M, Lemaître V, Okada Y, D’Armiento J. A critical role for ABC transporters in persistent lung inflammation in the development of emphysema after smoke exposure. FASEB J 2018; 32:fj201701381. [PMID: 29906247 PMCID: PMC6219826 DOI: 10.1096/fj.201701381] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 06/04/2018] [Indexed: 01/13/2023]
Abstract
Macrophage infiltration is common to both emphysema and atherosclerosis, and cigarette smoke down-regulates the macrophage cholesterol efflux transporter ATP binding cassette (ABC)A1. This decreased cholesterol efflux results in lipid-laden macrophages. We hypothesize that cigarette smoke adversely affects cholesterol transport via an ABCA1-dependent mechanism in macrophages, enhancing TLR4/myeloid differentiation primary response gene 88 (Myd88) signaling and resulting in matrix metalloproteinase (MMP) up-regulation and exacerbation of pulmonary inflammation. ABCA1 is significantly down-regulated in the lung upon smoke exposure conditions. Macrophages exposed to cigarette smoke in vivo and in vitro exhibit impaired cholesterol efflux correlating with significantly decreased ABCA1 expression, up-regulation of the TLR4/Myd88 pathway, and downstream MMP-9 and MMP-13 expression. Treatment with liver X receptor (LXR) agonist restores ABCA1 expression after short-term smoke exposure and attenuates the inflammatory response; after long-term smoke exposure, there is also attenuated physiologic and morphologic changes of emphysema. In vitro, treatment with LXR agonist decreases macrophage inflammatory activation in wild-type but not ABCA1 knockout mice, suggesting an ABCA1-dependent mechanism of action. These studies demonstrate an important association between cigarette smoke exposure and cholesterol-mediated pathways in the macrophage inflammatory response. Modulation of these pathways through manipulation of ABCA1 activity effectively blocks cigarette smoke-induced inflammation and provides a potential novel therapeutic approach for the treatment of chronic obstructive pulmonary disease.-Sonett, J., Goldklang, M., Sklepkiewicz, P., Gerber, A., Trischler, J., Zelonina, T., Westerterp, M., Lemaître, V., Okada, V., D'Armiento, J. A critical role for ABC transporters in persistent lung inflammation in the development of emphysema after smoke exposure.
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Affiliation(s)
- Jarrod Sonett
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Monica Goldklang
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Piotr Sklepkiewicz
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Adam Gerber
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Jordis Trischler
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Tina Zelonina
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Marit Westerterp
- Division of Molecular Medicine, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York, USA
- Department of Pediatrics, Section of Molecular Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Vincent Lemaître
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Yasunori Okada
- Department of Pathophysiology for Locomotive and Neoplastic Diseases, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Jeanine D’Armiento
- Department of Anesthesiology, Center for Molecular Pulmonary Disease, College of Physicians and Surgeons, Columbia University, New York, New York, USA
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248
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Apolipoprotein E and Atherosclerosis: From Lipoprotein Metabolism to MicroRNA Control of Inflammation. J Cardiovasc Dev Dis 2018; 5:jcdd5020030. [PMID: 29789495 PMCID: PMC6023389 DOI: 10.3390/jcdd5020030] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/08/2018] [Accepted: 05/18/2018] [Indexed: 12/26/2022] Open
Abstract
Apolipoprotein (apo) E stands out among plasma apolipoproteins through its unprecedented ability to protect against atherosclerosis. Although best recognized for its ability to mediate plasma lipoprotein clearance in the liver and protect against macrophage foam cell formation, our recent understanding of the influence that apoE can exert to control atherosclerosis has significantly widened. Among apoE’s newfound athero-protective properties include an ability to control exaggerated hematopoiesis, blood monocyte activation and aortic stiffening in mice with hyperlipidemia. Mechanisms responsible for these exciting new properties extend beyond apoE’s ability to prevent cellular lipid excess. Rather, new findings have revealed a role for apoE in regulating microRNA-controlled cellular signaling in cells of the immune system and vascular wall. Remarkably, infusions of apoE-responsive microRNA mimics were shown to substitute for apoE in protecting against systemic and vascular inflammation to suppress atherosclerosis in mice with hyperlipidemia. Finally, more recent evidence suggests that apoE may control the release of microvesicles that could modulate cellular signaling, inflammation and atherosclerosis at a distance. These exciting new findings position apoE within the emerging field of intercellular communication that could introduce new approaches to control atherosclerosis cardiovascular disease.
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249
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Raghavan S, Singh NK, Mani AM, Rao GN. Protease-activated receptor 1 inhibits cholesterol efflux and promotes atherogenesis via cullin 3-mediated degradation of the ABCA1 transporter. J Biol Chem 2018; 293:10574-10589. [PMID: 29777060 DOI: 10.1074/jbc.ra118.003491] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/10/2018] [Indexed: 12/25/2022] Open
Abstract
Although signaling of thrombin via its receptor protease-activated receptor 1 (Par1) is known to occur in atherothrombosis, its link to the actual pathogenesis of this condition is less clear. To better understand the role of thrombin-Par1 signaling in atherosclerosis, here we have studied their effects on cellular cholesterol efflux in mice. We found that by activating Par1 and cullin 3-mediated ubiquitination and degradation of ABC subfamily A member 1 (ABCA1), thrombin inhibits cholesterol efflux in both murine macrophages and smooth muscle cells. Moreover, disruption of the Par1 gene rescued ABCA1 from Western diet-induced ubiquitination and degradation and restored cholesterol efflux in apolipoprotein E-deficient (ApoE-/-) mice. Similarly, the Par1 deletion diminished diet-induced atherosclerotic lesions in the ApoE-/- mice. These observations for the first time indicate a role for thrombin-Par1 signaling in the pathogenesis of diet-induced atherosclerosis. We identify cullin 3 as a cullin-RING ubiquitin E3 ligase that mediates ABCA1 ubiquitination and degradation and thereby inhibits cholesterol efflux. Furthermore, compared with peripheral blood mononuclear cells (PBMCs) from ApoE-/- mice, the PBMCs from ApoE-/-:Par1-/- mice exhibited decreased trafficking to inflamed arteries of Western diet-fed ApoE-/- mice. This finding suggested that besides inhibiting cholesterol efflux, thrombin-Par1 signaling also plays a role in the recruitment of leukocytes during diet-induced atherogenesis. Based on these findings, we conclude that thrombin-Par1 signaling appears to contribute to the pathogenesis of atherosclerosis by impairing cholesterol efflux from cells and by recruiting leukocytes to arteries.
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Affiliation(s)
- Somasundaram Raghavan
- From the Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163
| | - Nikhlesh K Singh
- From the Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163
| | - Arul M Mani
- From the Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163
| | - Gadiparthi N Rao
- From the Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163
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250
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Regulation of macrophage immunometabolism in atherosclerosis. Nat Immunol 2018; 19:526-537. [PMID: 29777212 DOI: 10.1038/s41590-018-0113-3] [Citation(s) in RCA: 302] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 04/18/2018] [Indexed: 02/07/2023]
Abstract
After activation, cells of the myeloid lineage undergo robust metabolic transitions, as well as discrete epigenetic changes, that can dictate both ongoing and future inflammatory responses. In atherosclerosis, in which macrophages play central roles in the initiation, growth, and ultimately rupture of arterial plaques, altered metabolism is a key feature that dictates macrophage function and subsequent disease progression. This Review explores how factors central to the plaque microenvironment (for example, altered cholesterol metabolism, oxidative stress, hypoxia, apoptotic and necrotic cells, and hyperglycemia) shape the metabolic rewiring of macrophages in atherosclerosis as well as how these metabolic shifts in turn alter macrophage immune-effector and tissue-reparative functions. Finally, this overview offers insight into the challenges and opportunities of harnessing metabolism to modulate aberrant macrophage responses in disease.
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