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Lu XR, Tao Q, Qin Z, Liu XW, Li SH, Bai LX, Ge WB, Liu YX, Li JY, Yang YJ. A combined transcriptomics and proteomics approach to reveal the mechanism of AEE relieving hyperlipidemia in ApoE -/- mice. Biomed Pharmacother 2024; 173:116400. [PMID: 38484560 DOI: 10.1016/j.biopha.2024.116400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/01/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024] Open
Abstract
Hyperlipidemia caused by abnormal lipid metabolism has reached epidemic proportions. This phenomenon is also common in companion animals. Previous studies showed that AEE significantly improves abnormal blood lipids in hyperlipidemia rats and mice, but its mechanism is still not clear enough. In this study, the mechanism and potential key pathways of AEE on improving hyperlipidemia in mice were investigated through the transcriptome and proteome study of ApoE-/- mice liver and the verification study on high-fat HepG2 cells. The results showed that AEE significantly decreased the serum TC and LDL-C levels of hyperlipidemia ApoE-/- mice, and significantly increased the enzyme activity of CYP7A1. After AEE intervention, the results of mice liver transcriptome and proteome showed that differential genes and proteins were enriched in lipid metabolism-related pathways. The results of RT-qPCR showed that AEE significantly regulated the expression of genes related to lipid metabolism in mice liver tissue. AEE significantly upregulated the protein expression of CYP7A1 in hyperlipidemia ApoE-/- mice liver tissue. The results in vitro showed that AEE significantly decreased the levels of TC and TG, and improved lipid deposition in high-fat HepG2 cells. AEE significantly increased the expression of CYP7A1 protein in high-fat HepG2 cells. AEE regulates the expression of genes related to lipid metabolism in high-fat HepG2 cells, mainly by FXR-SHP-CYP7A1 and FGF19-TFEB-CYP7A1 pathways. To sum up, AEE can significantly improve the hyperlipidemia status of ApoE-/- mice and the lipid deposition of high-fat HepG2 cells, and its main pathway is probably the bile acid metabolism-related pathway centered on CYP7A1.
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Affiliation(s)
- Xiao-Rong Lu
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Qi Tao
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Zhe Qin
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Xi-Wang Liu
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Shi-Hong Li
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Li-Xia Bai
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Wen-Bo Ge
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Ya-Xian Liu
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Jian-Yong Li
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China.
| | - Ya-Jun Yang
- Key Lab of New Animal Drug of Gansu Province,Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China.
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Tehranchinia Z, Abdollahimajd F, Haghighatkhah H, Talebi A, Yarahmadi A, Zoghi G. The frequency of fatty liver in patients with alopecia areata: A case-control study. J Cosmet Dermatol 2023; 22:2579-2583. [PMID: 37017934 DOI: 10.1111/jocd.15754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/03/2023] [Accepted: 03/21/2023] [Indexed: 04/06/2023]
Abstract
BACKGROUND Alopecia areata (AA) is an immune-mediated nonscarring hair loss disorder with multiple subtypes, including alopecia universalis (AU). Previous studies have shown a link between serum lipid profile and alopecia. We aimed to investigate the frequency of fatty liver in patients with AU and patchy alopecia areata (PAA) compared to a control group. METHODS This case-control study included patients with AU and PAA referred to a dermatology clinic from September 23, 2019 to September 23, 2020. A group of individuals without hair loss disorders attending the same clinic were selected as controls. Participants' general information, including age, sex, weight, height, and waist circumference (WC), was recorded. Body mass index (BMI) was calculated for all participants. Also, hyperlipidemia and statin use were noted and liver enzymes were evaluated. For AU and PAA patients, disease duration and the Severity of Alopecia Tool (SALT) score were also recorded. Then, all subjects underwent ultrasound to assess fatty liver and its grade. RESULTS Overall, 32 patients were included in each group. All three groups were comparable in age, sex, weight, height, BMI, WC, hyperlipidemia, abnormal liver enzymes, and statin use. Disease duration and SALT score were significantly higher in the AU than in the PAA group (p = 0.009 and p < 0.001, respectively). The frequency of fatty liver was the highest in AU patients (40.6%), followed by 34.4% in PAA patients, and 21.9% in controls (p = 0.263). This was also the case for grade-1 fatty liver, while grade-2 was more common in PAA patients, and grade-3 was only observed in one patient from the AU group (p = 0.496). CONCLUSIONS Fatty liver was more frequent in AU and PAA patients than controls, without statistically significant differences. There might be an association between fatty liver and AA, particularly the AU subtype.
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Affiliation(s)
- Zohreh Tehranchinia
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fahimeh Abdollahimajd
- Department of Dermatology, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamidreza Haghighatkhah
- Radiology Department of Diagnosis Imaging, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Talebi
- Colorectal Research Center, Rasool Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Amin Yarahmadi
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ghazal Zoghi
- Endocrinology and Metabolism Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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3
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Ijaz MU, Vaziri F, Wan YJY. Effects of Bacillus Calmette-Guérin on immunometabolism, microbiome and liver diseases ⋆. LIVER RESEARCH 2023; 7:116-123. [PMID: 38223885 PMCID: PMC10786626 DOI: 10.1016/j.livres.2023.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Metabolic diseases have overtaken infectious diseases as the most serious public health issue and economic burden in most countries. Moreover, metabolic diseases increase the risk of having infectious diseases. The treatment of metabolic disease may require a long-term strategy of taking multiple medications, which can be costly and have side effects. Attempts to expand the therapeutic use of vaccination to prevent or treat metabolic diseases have attracted significant interest. A growing body of evidence indicates that Bacillus Calmette-Guérin (BCG) offers protection against non-infectious diseases. The non-specific effects of BCG occur likely due to the induction of trained immunity. In this regard, understanding how BCG influences the development of chronic metabolic health including liver diseases would be important. This review focuses on research on BCG, the constellation of disorders associated with metabolic health issues including liver diseases and diabetes as well as how BCG affects the gut microbiome, immunity, and metabolism.
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Affiliation(s)
- Muhammad Umair Ijaz
- Department of Medical Pathology and Laboratory Medicine, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Farzam Vaziri
- Department of Medical Pathology and Laboratory Medicine, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Yu-Jui Yvonne Wan
- Department of Medical Pathology and Laboratory Medicine, University of California Davis School of Medicine, Sacramento, CA, USA
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4
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van der Vorst EPC, Döring Y. How slimming regulatory T cells limit atherosclerosis: Mechanistic insights into T cell lipid metabolism. Atherosclerosis 2022; 362:23-25. [PMID: 36400604 DOI: 10.1016/j.atherosclerosis.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Emiel P C van der Vorst
- Institute for Molecular Cardiovascular Research (IMCAR) and Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, 52074, Aachen, Germany; Aachen-Maastricht Institute for CardioRenal Disease (AMICARE), RWTH Aachen University, 52074, Aachen, Germany; Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich (LMU), 80336, Munich, Germany.
| | - Yvonne Döring
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich (LMU), 80336, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80336, Munich, Germany; Division of Angiology, Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern, Switzerland; Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
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5
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Guak H, Krawczyk CM. Implications of cellular metabolism for immune cell migration. Immunology 2020; 161:200-208. [PMID: 32920838 DOI: 10.1111/imm.13260] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/25/2020] [Accepted: 09/02/2020] [Indexed: 12/15/2022] Open
Abstract
Cell migration is an essential, energetically demanding process in immunity. Immune cells navigate the body via chemokines and other immune mediators, which are altered under inflammatory conditions of injury or infection. Several factors determine the migratory abilities of different types of immune cells in diverse contexts, including the precise co-ordination of cytoskeletal remodelling, the expression of specific chemokine receptors and integrins, and environmental conditions. In this review, we present an overview of recent advances in our understanding of the relationship of each of these factors with cellular metabolism, with a focus on the spatial organization of glycolysis and mitochondria, reciprocal regulation of chemokine receptors and the influence of environmental changes.
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Affiliation(s)
- Hannah Guak
- Department of Physiology, McGill University, Montreal, QC, Canada.,Metabolic and Nutritional Programming Group, Van Andel Institute, Grand Rapids, MI, USA
| | - Connie M Krawczyk
- Metabolic and Nutritional Programming Group, Van Andel Institute, Grand Rapids, MI, USA
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Moopanar K, Mvubu NE. Lineage-specific differences in lipid metabolism and its impact on clinical strains of Mycobacterium tuberculosis. Microb Pathog 2020; 146:104250. [PMID: 32407863 DOI: 10.1016/j.micpath.2020.104250] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 04/01/2020] [Accepted: 05/06/2020] [Indexed: 01/02/2023]
Abstract
Mycobacterium tuberculosis (M. tb) is the causative agent of TB and its incidences has been on the rise since 1993. Lipid metabolism is an imperative metabolic process, which grants M. tb the ability to utilize host-derived lipids as a secondary source of nutrition during infection. In addition to degrading host lipids, M. tb is proficient at using lipids, such as cholesterol, to facilitate its entry into macrophages. Mycolic acids, constituents of the mycobacterial cell wall, offer protection and aid in persistence of the bacterium. These are effectively synthesized using a complex fatty acid synthase system. Many pathogenesis studies have reported differences in lipid-metabolism of clinical strains of M. tb that belongs to diverse lineages of the Mycobacterium tuberculosis complex (MTBC). East-Asian and Euro-American lineages possess "unique" cell wall-associated lipids compared to the less transmissible Ethiopian lineage, which may offer these lineages a competitive advantage. Therefore, it is crucial to comprehend the complexities among the MTBC lineages with lipid metabolism and their impact on virulence, transmissibility and pathogenesis. Thus, this review provides an insight into lipid metabolism in various lineages of the MTBC and their impact on virulence and persistence during infection, as this may provide critical insight into developing novel therapeutics to combat TB.
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Affiliation(s)
- K Moopanar
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, South Africa.
| | - N E Mvubu
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, South Africa.
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Ospina-Quintero L, Jaramillo JC, Tabares-Guevara JH, Ramírez-Pineda JR. Reformulating Small Molecules for Cardiovascular Disease Immune Intervention: Low-Dose Combined Vitamin D/Dexamethasone Promotes IL-10 Production and Atheroprotection in Dyslipidemic Mice. Front Immunol 2020; 11:743. [PMID: 32395119 PMCID: PMC7197409 DOI: 10.3389/fimmu.2020.00743] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/01/2020] [Indexed: 12/15/2022] Open
Abstract
The targeting of proinflammatory pathways has a prophylactic and therapeutic potential on atherosclerotic cardiovascular diseases (CVD). An alternative/complementary strategy is the promotion of endogenous atheroprotective mechanisms that are impaired during atherosclerosis progression, such as the activity of tolerogenic dendritic cells (tolDC) and regulatory T cells (Treg). There is a need to develop novel low cost, safe and effective tolDC/Treg-inducing formulations that are atheroprotective and that can be of easy translation into clinical settings. We found that apolipoprotein E-deficient (ApoE–/–) mice treated with a low-dose combined formulation of Vitamin D and Dexamethasone (VitD/Dexa), delivered repetitively and subcutaneously (sc) promoted interleukin-10 (IL-10) production by dendritic cells and other antigen presenting cells in the lymph nodes draining the site of injection and the spleens. Expectedly, the treatment also increased the numbers of IL-10-producing CD4+ T cells. Concomitantly, the frequency of IFNγ-producing CD4+ and CD8+ T cells in the spleen, and the IFNγ response of splenocytes to polyclonal stimulation ex vivo were lower after VitD/Dexa treatment, indicating a reduced proatherogenic Th1 response. Interestingly, VitD/Dexa-treated mice had smaller atherosclerotic lesions, with reduced lipid content and lower inflammatory infiltrate of macrophages and T cells in the aortic root. No hypolipidemic or antioxidant effect could be detected, suggesting that a dominantly immunomodulatory mechanism of atheroprotection was engaged under the low-dose sc VitD/Dexa conditions used. Finally, no evidence of clinical, biochemical or immune toxicity was observed in treated ApoE–/– mice and, most importantly, C57BL/6 mice latently infected with Leishmania parasites and treated with an identical VitD/Dexa dose/scheme showed no clinical or microbiological signs of disease reactivation, suggesting the absence of general immunosuppression. Altogether, these results indicate that a non-toxic, non-immunosuppressive, low-dose of VitD/Dexa, administered subcutaneously and repetitively, exerts atheroprotective effects in dyslipidemic mice, apparently due to the induction of an IL-10-producing network of lymphoid and myeloid immune cells. These well known, widely available, and inexpensive small molecules can be easily co-formulated into a simple and accessible agent with a potential use as a prophylactic or therapeutic immune intervention for CVD and other chronic inflammatory diseases.
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Affiliation(s)
- Laura Ospina-Quintero
- Grupo Inmunomodulación (GIM), Instituto de Investigaciones Médicas, Facultad de Medicina, Corporación Académica para el Estudio de Patologías Tropicales (CAEPT), Universidad de Antioquia, Medellin, Colombia
| | - Julio C Jaramillo
- Grupo Inmunomodulación (GIM), Instituto de Investigaciones Médicas, Facultad de Medicina, Corporación Académica para el Estudio de Patologías Tropicales (CAEPT), Universidad de Antioquia, Medellin, Colombia
| | - Jorge H Tabares-Guevara
- Grupo Inmunomodulación (GIM), Instituto de Investigaciones Médicas, Facultad de Medicina, Corporación Académica para el Estudio de Patologías Tropicales (CAEPT), Universidad de Antioquia, Medellin, Colombia
| | - José R Ramírez-Pineda
- Grupo Inmunomodulación (GIM), Instituto de Investigaciones Médicas, Facultad de Medicina, Corporación Académica para el Estudio de Patologías Tropicales (CAEPT), Universidad de Antioquia, Medellin, Colombia
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Protective Effect of Shenqi Maixintong Capsule against ox-LDL-Induced Injury in RAW264.7 Macrophages. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020. [DOI: 10.1155/2020/6708152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Shenqi Maixintong capsule (SMC), a traditional Chinese medicine compound, exerts various therapeutic effects, including nourishing one’s vitality, improving blood circulation, regulating vital energy, and promoting coronary circulation. Studies have demonstrated that SMC could effectively alleviate atherosclerosis (AS) and delay its development. However, the effect of SMC on lipid metabolism remains unclear. Herein, we investigated the mechanism of SMC on lipid metabolism of RAW264.7 cells induced by oxidized low-density lipoprotein (ox-LDL). Drug-containing serum was prepared by intragastric administration of SD (Sprague Dawley) rats. RAW264.7 cells were transformed into foam cells with 25 mg/L ox-LDL. SMC-treated rat serum increased the survival rate of ox-LDL-induced RAW264.7 cells. Oil Red staining, total cholesterol, and free cholesterol detection data showed that the intermediated dose of SMC had the best effect on reducing the lipid accumulation, lipid droplets, intracellular cholesterol, and total cholesterol content of RAW264.7 cells. The results of western blotting showed that the expression of ABCA1, ABCG1, LXRα, PPARγ, and peroxisome proliferation-activated receptor alpha (PPARα) was increased by SMC, and proprotein convertase subtilisin/kexin type 9 (PCSK9) was reduced, which promoted reverse cholesterol transport (RCT) of RAW264.7 cells and inhibited foam cell formation. Furthermore, SOD and MDA data indicated that SMC could reduce the senescence of RAW264.7 cells. These findings suggest that SMC might prevent ox-LDL-induced damage of macrophages in AS patients by improving cell viability and slowing down lipid accumulation and senescence.
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Nanomaterial Effects on Viral Infection. INTERACTION OF NANOMATERIALS WITH THE IMMUNE SYSTEM 2020. [PMCID: PMC7122331 DOI: 10.1007/978-3-030-33962-3_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The potential for environmental and occupational exposures of populations to nanomaterials (NMs) has fostered concerns of associated adverse health effects, with a particular emphasis on pulmonary injury and disease. Many studies have revealed that several types of NMs can evoke a variety of biological responses, such as pulmonary inflammation and oxidative stress, which contribute to allergy, fibrosis, and granuloma formation. Less attention has been paid to health effects that may result from exposure to NMs and additional stressors such as pathogens, with a particular focus on susceptibility to viral infection. This chapter will summarize the current body of literature related to NMs and viral exposures with a primary focus on immune modulation. A summary of the studies performed and major findings to date will be discussed, highlighting proposed molecular mechanisms behind NM-driven host susceptibility, challenges, limitations, and future research needs. Specific mechanisms discussed include direct interaction between NMs and biological molecules, activation of pattern recognition receptors (PRRs) and related signaling pathways, production of oxidative stress and mitochondrial dysfunction, inflammasome activation, and modulation of lipid signaling networks.
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Cimmino G, Cirillo P, Conte S, Pellegrino G, Barra G, Maresca L, Morello A, Calì G, Loffredo F, De Palma R, Arena G, Sawamura T, Ambrosio G, Golino P. Oxidized low-density lipoproteins induce tissue factor expression in T-lymphocytes via activation of lectin-like oxidized low-density lipoprotein receptor-1. Cardiovasc Res 2019; 116:1125-1135. [DOI: 10.1093/cvr/cvz230] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/17/2019] [Accepted: 08/21/2019] [Indexed: 12/11/2022] Open
Abstract
Abstract
Aims
T-lymphocytes plays an important role in the pathophysiology of acute coronary syndromes. T-cell activation in vitro by pro-inflammatory cytokines may lead to functional tissue factor (TF) expression, indicating a possible contribution of immunity to thrombosis. Oxidized low-density lipoproteins (oxLDLs) are found abundantly in atherosclerotic plaques. We aimed at evaluating the effects of oxLDLs on TF expression in T cells and the role of the lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1).
Methods and results
CD3+ cells were isolated from healthy volunteers. Gene, protein, and surface expression of TF, as well as of LOX-1, were assessed at different time-points after oxLDL stimulation. To determine whether oxLDL-induced TF was LOX-1 dependent, T cells were pre-incubated with an LOX-1 inhibiting peptide (L-RBP) or with an anti-LOX-1 blocking antibody. To exclude that TF expression was mediated by reactive oxygen species (ROS) generation, oxLDL-stimulated T cells were pre-incubated with superoxide dismutase + catalase or with 4-Hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (Tempol), an intracellular free radical scavenger. Finally, to determine if the observed findings in vitro may have a biological relevance, the presence of CD3+/TF+/LOX-1+ cells was evaluated by immunofluorescence in human carotid atherosclerotic lesions. oxLDLs induced functionally active TF expression in T cells in a dose- and time-dependent manner, independently on ROS generation. No effect was observed in native LDL-treated T cells. LOX-1 expression was also induced by oxLDLs in a time- and dose-dependent manner. Pre-incubation with L-RBP or anti-LOX-1 antibody almost completely inhibited oxLDL-mediated TF expression. Interestingly, human carotid plaques showed significant infiltration of CD3+ cells (mainly CD8+ cells), some of which were positive for both TF and LOX-1.
Conclusion
oxLDLs induce functional TF expression in T-lymphocytes in vitro via interaction of oxLDLs with LOX-1. Human carotid atherosclerotic plaques contain CD3+/CD8+cells that express both TF and LOX-1, indicating that also in patients these mechanisms may play an important role.
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Affiliation(s)
- Giovanni Cimmino
- Department of Translational Medical Sciences, Section of Cardiology, University of Campania “Luigi Vanvitelli”, c/o Monaldi Hospital, Via L. Bianchi, 1, 80131 Naples, Italy
| | - Plinio Cirillo
- Department of Advanced Biomedical Sciences, Section of Cardiology, University of Naples “Federico II”, Naples, Italy
| | - Stefano Conte
- Department of Translational Medical Sciences, Section of Cardiology, University of Campania “Luigi Vanvitelli”, c/o Monaldi Hospital, Via L. Bianchi, 1, 80131 Naples, Italy
| | - Grazia Pellegrino
- Department of Advanced Biomedical Sciences, Section of Cardiology, University of Naples “Federico II”, Naples, Italy
| | - Giusi Barra
- Department of Clinical and Experimental Medicine, Section of Clinical Immunology, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Lucio Maresca
- Vascular Surgery Unit, Monaldi Hospital, Naples, Italy
| | - Andrea Morello
- Department of Advanced Biomedical Sciences, Section of Cardiology, University of Naples “Federico II”, Naples, Italy
| | - Gaetano Calì
- Endocrinology and Experimental Oncology Institute, CNR, Naples, Italy
| | - Francesco Loffredo
- Department of Translational Medical Sciences, Section of Cardiology, University of Campania “Luigi Vanvitelli”, c/o Monaldi Hospital, Via L. Bianchi, 1, 80131 Naples, Italy
- Molecular Cardiology, International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Raffaele De Palma
- Department of Clinical and Experimental Medicine, Section of Clinical Immunology, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Institute of Protein Biochemistry, CNR, Naples, Italy
| | - Giulia Arena
- Department of Translational Medical Sciences, Section of Cardiology, University of Campania “Luigi Vanvitelli”, c/o Monaldi Hospital, Via L. Bianchi, 1, 80131 Naples, Italy
| | - Tatsuya Sawamura
- Department of Physiology, Shinshu University School of Medicine, Asahi, Japan
| | | | - Paolo Golino
- Department of Translational Medical Sciences, Section of Cardiology, University of Campania “Luigi Vanvitelli”, c/o Monaldi Hospital, Via L. Bianchi, 1, 80131 Naples, Italy
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Anti-atherosclerosis effect of H2S donors based on nicotinic acid and chlorfibrate structures. Bioorg Med Chem 2019; 27:3307-3318. [DOI: 10.1016/j.bmc.2019.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/02/2019] [Accepted: 06/05/2019] [Indexed: 01/01/2023]
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12
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Jones RS, Tu C, Zhang M, Qu J, Morris ME. Characterization and Proteomic-Transcriptomic Investigation of Monocarboxylate Transporter 6 Knockout Mice: Evidence of a Potential Role in Glucose and Lipid Metabolism. Mol Pharmacol 2019; 96:364-376. [PMID: 31436537 DOI: 10.1124/mol.119.116731] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/27/2019] [Indexed: 12/14/2022] Open
Abstract
Monocarboxylate transporter 6 [(MCT6), SLC16A5] is an orphan transporter with no known endogenous substrates or physiological role. Previous in vitro and in vivo experiments investigated MCT6 substrate/inhibitor specificity in Xenopus laevis oocytes; however, these data remain limited. Transcriptomic changes in the livers of mice undergoing different dieting schemes have suggested that Mct6 plays a role in glucose and lipid metabolism. The objectives of this study were 1) to develop a novel knockout (KO) mouse model (Mct6-/-) using CRISPR/Cas9 technology, 2) to characterize the KO animal model by examining physiological and biochemical parameters, and 3) to understand the physiological role of MCT6 in vivo through global proteomic and liver transcriptomic profiling. mRNA tissue analysis demonstrated knockout of Mct6, which showed greater than 90% knockdown of Mct6 (Slc16a5) gene expression in all major tissues analyzed when normalized to Mct6+/+ mice. Proteomic analyses identified greater than 4000 unique proteins in kidney, liver, and colon tissues, among which 51, 38, and 241 proteins were significantly altered, respectively (for each tissue), between Mct6+/+ and Mct6-/- mice. Additionally, Mct6-/- mice demonstrated significant changes in 199 genes in the liver compared with Mct6+/+ mice. In silico biological pathway analyses revealed significant changes in proteins and genes involved in glucose and lipid metabolism-associated pathways. This study is the first to provide evidence for an association of Mct6 in the regulation of glucose and lipid metabolism. SIGNIFICANCE STATEMENT: This paper focuses on elucidating the innate biological role of an orphan transporter in vivo, which has not been investigated thus far. Using efficient and high-throughput technologies, such as CRISPR/Cas9 gene editing, liquid chromatography-tandem mass spectrometry-based proteomic and RNA-sequencing transcriptomic analyses, our laboratory provides the first existence and characterization of a Mct6 knockout mouse model. The evidence gathered in this paper, as well as other laboratories, support the importance of MCT6 in regulating a variety of glucose and lipid metabolic pathways, which may indicate its significance in metabolic diseases.
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Affiliation(s)
- Robert S Jones
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York (R.S.J., C.T., J.Q., M.E.M.); and New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York (C.T., M.Z., J.Q.)
| | - Chengjian Tu
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York (R.S.J., C.T., J.Q., M.E.M.); and New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York (C.T., M.Z., J.Q.)
| | - Ming Zhang
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York (R.S.J., C.T., J.Q., M.E.M.); and New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York (C.T., M.Z., J.Q.)
| | - Jun Qu
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York (R.S.J., C.T., J.Q., M.E.M.); and New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York (C.T., M.Z., J.Q.)
| | - Marilyn E Morris
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York (R.S.J., C.T., J.Q., M.E.M.); and New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York (C.T., M.Z., J.Q.)
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13
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dos Santos Silva DB, Fonseca LFS, Pinheiro DG, Muniz MMM, Magalhães AFB, Baldi F, Ferro JA, Chardulo LAL, de Albuquerque LG. Prediction of hub genes associated with intramuscular fat content in Nelore cattle. BMC Genomics 2019; 20:520. [PMID: 31238883 PMCID: PMC6591902 DOI: 10.1186/s12864-019-5904-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 06/12/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The aim of this study was to use transcriptome RNA-Seq data from longissimus thoracis muscle of uncastrated Nelore males to identify hub genes based on co-expression network obtained from differentially expressed genes (DEGs) associated with intramuscular fat content. RESULTS A total of 30 transcriptomics datasets (RNA-Seq) obtained from longissimus thoracis muscle were selected based on the phenotypic value of divergent intramuscular fat content: 15 with the highest intramuscular fat content (HIF) and 15 with the lowest intramuscular fat content (LIF). The transcriptomics datasets were aligned with a reference genome and 65 differentially expressed genes (DEGs) were identified, including 21 upregulated and 44 downregulated genes in HIF animals. The normalized count data from DEGs was then used for co-expression network construction. From the co-expression network, four modules were identified. The topological properties of the network were analyzed; those genes engaging in the most interactions (maximal clique centrality method) with other DEGs were predicted to be hub genes (PDE4D, KLHL30 and IL1RAP), which consequently may play a role in cellular and/or systemic lipid biology in Nelore cattle. Top modules screened from the gene co-expression network were identify. The two candidate modules had clear associated biological pathways related to fat development, cell adhesion, and muscle differentiation, immune system, among others. The hub genes belonged in top modules and were downregulated in HIF animals. PDE4D and IL1RAP have known effects on lipid metabolism and the immune system through the regulation of cAMP signaling. Given that cAMP is known to play a role in lipid systems, PDE4D and IL1RAP downregulation may contribute to increased levels of intracellular cAMP and thus may have effects on IF content differences in Nelore cattle. KLHL30 may have effects on muscle metabolism. Klhl protein families play a role in protein degradation. However, the downregulation of this gene and its role in lipid metabolism has not yet been clarified. CONCLUSIONS The results reported in this study indicate candidate genes and molecular mechanisms involved in IF content difference in Nelore cattle.
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Affiliation(s)
- Danielly Beraldo dos Santos Silva
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, SP Brazil
- National Council for Scientific and Technological Development (CNPq), Brasilia, DF Brazil
| | - Larissa Fernanda Simielli Fonseca
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, SP Brazil
- National Council for Scientific and Technological Development (CNPq), Brasilia, DF Brazil
| | - Daniel Guariz Pinheiro
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, SP Brazil
| | | | | | - Fernando Baldi
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, SP Brazil
- National Council for Scientific and Technological Development (CNPq), Brasilia, DF Brazil
| | - Jesus Aparecido Ferro
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, SP Brazil
- National Council for Scientific and Technological Development (CNPq), Brasilia, DF Brazil
| | | | - Lucia Galvão de Albuquerque
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, SP Brazil
- National Council for Scientific and Technological Development (CNPq), Brasilia, DF Brazil
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14
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Li SS, Cao H, Shen DZ, Chen C, Xing SL, Dou FF, Jia QL. Effect of Quercetin on Atherosclerosis Based on Expressions of ABCA1, LXR-α and PCSK9 in ApoE -/- Mice. Chin J Integr Med 2019; 26:114-121. [PMID: 31144159 DOI: 10.1007/s11655-019-2942-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2018] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To investigate the effect of quercetin on ATP binding cassette transporter A1 (ABCA1), liver X receptor (LXR), and proprotein convertase subtilisin/kexin type 9 (PCSK9) expressions in apoE-knockout (ApoE-/-) mice. METHODS The high-fat diet-induced atherosclerosis (AS) in ApoE-/- mice was established. Thirty-six mice were divided into 3 groups using random number table method: model group (n=12), quercetin group (n=12), and atorvastatin group (n=12), with C57BL/6J mice of the same strain and age as the control group (n=12). Quercetin group and atorvastatin group were administrated with quercetin and atorvastatin by oral gavage, with doses of 12.5 and 4 mg/(kg•d), respectively. Animals in the control and model groups were given an equal volume of distilled water by oral gavage once per day for a total of 12 weeks. Western blot and immunohistochemical methods were employed to determine the aortic ABCA1, LXR-α and PCSK9 protein expression. Enzyme linked immunosorbent assay method was used to detect the expression of serum total cholesterol (TC), triglyceride (TG), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholesterol (LDL-C), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and IL-10, combined with tissue pathological examination. RESULTS ApoE-/- mice fed with a high-fat diet had notable atherosclerosis lesions, with reduced ABCA1, LXR-α and IL-10 levels (all P<0.01), elevated PCSK9, TNF-α and IL-6 expression, and increased TC and LDL-C contents (all P<0.01). After quercetin intervention, the areas of AS plaques and the expressions of PCSK9, TNF-α and IL-6 were significantly reduced (all P<0.01), while the expressions of ABCA1 and LXR-α were increased significantly (all P<0.01). CONCLUSION Quercetin effectively interfered with AS development by regulating the expressions of ABCA1, LXR- α and PCSK9 in ApoE-/- mice.
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Affiliation(s)
- Shan-Shan Li
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China
| | - Hui Cao
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China
| | - Ding-Zhu Shen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China.
| | - Chuan Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China
| | - San-Li Xing
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China
| | - Fang-Fang Dou
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China
| | - Qing-Ling Jia
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China
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15
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Kuznetsova TA, Ivanushko LA, Persiyanova EV, Ermakova SP, Besednova NN. Markers of Systemic Inflammation in Experimental Dyslipidemia Induced by P-407: Modulation with Fucoidan from Brown Alga Fucus evanescens. Bull Exp Biol Med 2019; 166:766-769. [PMID: 31028586 DOI: 10.1007/s10517-019-04436-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Indexed: 02/01/2023]
Abstract
The effect of sulfated polysaccharide from brown alga Fucus evanescens (fucoidan) administered via different routes (peroral and parenteral) on the dynamic of some lipid metabolism parameters and markers of systemic inflammation in mice with experimental dyslipidemia induced by prolonged administration of poloxamer P-407. It was found that fucoidan corrected the main parameters of lipid metabolism, reduced the level of endothelial dysfunction marker endothelin-1 and proinflammatory cytokines TNFα, IFNγ in blood serum in animals with experimental dyslipidemia. These findings open prospects for using fucoidan in the complex treatment of metabolic disorders and atherosclerotic inflammation.
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Affiliation(s)
- T A Kuznetsova
- G. P. Somov Research Institute of Epidemiology and Microbiology, Far-Eastern Division of the Russian Academy of Sciences, Vladivostok, Russia.
| | - L A Ivanushko
- G. P. Somov Research Institute of Epidemiology and Microbiology, Far-Eastern Division of the Russian Academy of Sciences, Vladivostok, Russia
| | - E V Persiyanova
- G. P. Somov Research Institute of Epidemiology and Microbiology, Far-Eastern Division of the Russian Academy of Sciences, Vladivostok, Russia
| | - S P Ermakova
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Division of the Russian Academy of Sciences, Vladivostok, Russia
| | - N N Besednova
- G. P. Somov Research Institute of Epidemiology and Microbiology, Far-Eastern Division of the Russian Academy of Sciences, Vladivostok, Russia
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16
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Lim CP, Severin RK, Petukhova L. Big Data Reveal Insights into Alopecia Areata Comorbidities. J Investig Dermatol Symp Proc 2019; 19:S57-S61. [PMID: 29273109 DOI: 10.1016/j.jisp.2017.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Autoimmune diseases create a substantial burden of disease, and alopecia areata is among the more prevalent forms. Comorbidities are medical conditions that tend to occur together and may provide etiologic insights, suggest novel therapeutic strategies, and help patients and family members understand the risk of other health conditions. It is well established that having one autoimmune disease increases risk for others because of an underlying shared biology. Precision medicine initiatives are creating vast amounts of data that allow us to efficiently identify comorbidities. A survey across various datasets suggests that patients with autoimmune disease, and patients with alopecia areata in particular, may have comorbid neuropsychiatric and metabolic conditions.
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Affiliation(s)
- Chean Ping Lim
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Rachel K Severin
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Lynn Petukhova
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA; Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York, USA.
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17
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Bock KW. Human AHR functions in vascular tissue: Pro- and anti-inflammatory responses of AHR agonists in atherosclerosis. Biochem Pharmacol 2018; 159:116-120. [PMID: 30508524 DOI: 10.1016/j.bcp.2018.11.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023]
Abstract
Despite decades of intense research physiologic aryl hydrocarbon receptor (AHR) functions have not been elucidated. Challenges include marked species differences and dependence on cell type and cellular context. A previous commentary on human AHR functions in skin and intestine has been extended to vascular tissue. Similar functions appear to be operating in vascular tissue including microbial defense, modulation of stem/progenitor cells as well as control of immunity and inflammation. However, AHR functions are Janus faced: Detrimental AHR functions in vascular tissue are well documented, e.g., upon exposure to polycyclic aromatic hydrocarbons in cigarette smoke leading to oxidative stress and generation of oxidized LDL. Modified LDL particles accumulate in macrophages and smooth muscle-derived pro-inflammatory foam cells, the hallmark of atherosclerosis. On the other hand, numerous anti-inflammatory AHR agonists have been identified including bilirubin and quercetin. Mechanisms as to how AHR produces pro- and anti-inflammatory responses in the vascular system need further investigation.
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Affiliation(s)
- Karl Walter Bock
- Department of Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Wilhelmstrasse 56, D-72074 Tübingen, Germany.
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18
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Riedel BC, Daianu M, Ver Steeg G, Mezher A, Salminen LE, Galstyan A, Thompson PM. Uncovering Biologically Coherent Peripheral Signatures of Health and Risk for Alzheimer's Disease in the Aging Brain. Front Aging Neurosci 2018; 10:390. [PMID: 30555318 PMCID: PMC6283260 DOI: 10.3389/fnagi.2018.00390] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/08/2018] [Indexed: 11/21/2022] Open
Abstract
Brain aging is a multifaceted process that remains poorly understood. Despite significant advances in technology, progress toward identifying reliable risk factors for suboptimal brain health requires realistically complex analytic methods to explain relationships between genetics, biology, and environment. Here we show the utility of a novel unsupervised machine learning technique - Correlation Explanation (CorEx) - to discover how individual measures from structural brain imaging, genetics, plasma, and CSF markers can jointly provide information on risk for Alzheimer's disease (AD). We examined 829 participants (M age: 75.3 ± 6.9 years; 350 women and 479 men) from the Alzheimer's Disease Neuroimaging Initiative database to identify multivariate predictors of cognitive decline and brain atrophy over a 1-year period. Our sample included 231 cognitively normal individuals, 397 with mild cognitive impairment (MCI), and 201 with AD as their baseline diagnosis. Analyses revealed latent factors based on data-driven combinations of plasma markers and brain metrics, that were aligned with established biological pathways in AD. These factors were able to improve disease prediction along the trajectory from normal cognition and MCI to AD, with an area under the receiver operating curve of up to 99%, and prediction accuracy of up to 89.9% on independent "held out" testing data. Further, the most important latent factors that predicted AD consisted of a novel set of variables that are essential for cardiovascular, immune, and bioenergetic functions. Collectively, these results demonstrate the strength of unsupervised network measures in the detection and prediction of AD.
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Affiliation(s)
- Brandalyn C. Riedel
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Marina del Rey, CA, United States
| | - Madelaine Daianu
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Marina del Rey, CA, United States
| | - Greg Ver Steeg
- USC Information Sciences Institute, Marina del Rey, CA, United States
| | - Adam Mezher
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Marina del Rey, CA, United States
| | - Lauren E. Salminen
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Marina del Rey, CA, United States
| | - Aram Galstyan
- USC Information Sciences Institute, Marina del Rey, CA, United States
| | - Paul M. Thompson
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Marina del Rey, CA, United States
- Departments of Neurology, Psychiatry, Radiology, Engineering, and Pediatrics, University of Southern California, Los Angeles, CA, United States
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19
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Miliani M, Nouar M, Paris O, Lefranc G, Mennechet F, Aribi M. Thymoquinone Potently Enhances the Activities of Classically Activated Macrophages Pulsed with Necrotic Jurkat Cell Lysates and the Production of Antitumor Th1-/M1-Related Cytokines. J Interferon Cytokine Res 2018; 38:539-551. [PMID: 30422744 DOI: 10.1089/jir.2018.0010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Antitumor activity of classically activated macrophage (Mϕ) may be impaired within the tumors, spleen, and bone marrow. Thus, it is possible to boost its antitumor activity after its pulsing with necrotic tumor cell lysates combined with an adjuvant. We set out to determine the potential adjuvant effects of thymoquinone (TQ; 2-isopropyl-5-methyl-1,4-benzoquinone, C10H12O2) on both functional activities of classically activated Mϕs, pulsed or not with necrotic Jurkat T cell line lysates (NecrJCL), and the balance of antitumor cytokines (ATCs) versus immunosuppressive cytokines (ISCs) during crosstalk with autologous human CD4+ T cells. We found that TQ treatment resulted in a significant upregulation of phagocytic activity, respiratory burst, the production of interleukin-2 (IL-2), IL-6, and IL-17 in NecrJCL-pulsed Mϕ co-culture system, and, conversely, in downregulation of the production of IL-6, IL-17, nitric oxide (NO), and arginase activity in nonpulsed TQ-treated Mϕs co-culture system. In addition, TQ has also shown low upregulation effect on the production of interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), and IL-1β, pathogen killing capacity and H2O2 in NecrJCL-pulsed Mϕs co-cultures. Moreover, TQ significantly downregulated arginase activity, and significantly upregulated inducible NO synthase (iNOS) activity-to-arginase activity ratio in NecrJCL-pulsed Mϕ co-cultures. Furthermore, TQ downregulated IL-10-to-IL-17 ratio and total cellular cholesterol content (ttcCHOL), but upregulated the ratios of IL-1β-to-IL-4, IL-1β-to-IL-10, IFN-γ-to-IL-4, IFN-γ-to-IL-10, TNF-α-to-IL-4, TNF-α-to-IL-10, and combined proinflammatory cytokines (PICs)-to-anti-inflammatory cytokines (AICs) in NecrJCL-pulsed Mϕs co-culture system, whereas significant differences were highlighted only for IL-10-to-IL-17, IFN-γ-to-IL-10, and PICs-to-AICs ratios. Our outcomes demonstrated that TQ can act as potent adjuvant for enhancing both the functional activities of NecrJCL-pulsed Mϕ and the production of ATCs during their interplay with CD4+ T cells.
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Affiliation(s)
- Maroua Miliani
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Mouna Nouar
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Océane Paris
- Institut de Génétique Moléculaire de Montpellier (IGMM)-UMR5535, CNRS et Université de Montpellier, Montpellier, France
| | - Gérard Lefranc
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Franck Mennechet
- Institut de Génétique Moléculaire de Montpellier (IGMM)-UMR5535, CNRS et Université de Montpellier, Montpellier, France
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
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20
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Lacy M, Atzler D, Liu R, de Winther M, Weber C, Lutgens E. Interactions between dyslipidemia and the immune system and their relevance as putative therapeutic targets in atherosclerosis. Pharmacol Ther 2018; 193:50-62. [PMID: 30149100 DOI: 10.1016/j.pharmthera.2018.08.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cardiovascular disease (CVD) continues to be a leading cause of death worldwide with atherosclerosis being the major underlying pathology. The interplay between lipids and immune cells is believed to be a driving force in the chronic inflammation of the arterial wall during atherogenesis. Atherosclerosis is initiated as lipid particles accumulate and become trapped in vessel walls. The subsequent immune response, involving both adaptive and immune cells, progresses plaque development, which may be exacerbated under dyslipidemic conditions. Broad evidence, especially from animal models, clearly demonstrates the effect of lipids on immune cells from their development in the bone marrow to their phenotypic switching in circulation. Interestingly, recent research has also shown a long-lasting epigenetic signature from lipids on immune cells. Traditionally, cardiovascular therapies have approached atherosclerosis through lipid-lowering medications because, until recently, anti-inflammatory therapies have been largely unsuccessful in clinical trials. However, the recent Canakinumab Antiinflammatory Thrombosis Outcomes Study (CANTOS) provided pivotal support of the inflammatory hypothesis of atherosclerosis in man spurring on anti-inflammatory strategies to treat atherosclerosis. In this review, we describe the interactions between lipids and immune cells along with their specific outcomes as well as discuss their future perspective as potential cardiovascular targets.
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Affiliation(s)
- Michael Lacy
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Dorothee Atzler
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany; Walther Straub Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University, Munich, Germany
| | - Rongqi Liu
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Menno de Winther
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany; Department of Medical Biochemistry, Amsterdam University Medical Centre, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, the Netherlands
| | - Christian Weber
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Esther Lutgens
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany; Department of Medical Biochemistry, Amsterdam University Medical Centre, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, the Netherlands.
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21
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Swapna LS, Molinaro AM, Lindsay-Mosher N, Pearson BJ, Parkinson J. Comparative transcriptomic analyses and single-cell RNA sequencing of the freshwater planarian Schmidtea mediterranea identify major cell types and pathway conservation. Genome Biol 2018; 19:124. [PMID: 30143032 PMCID: PMC6109357 DOI: 10.1186/s13059-018-1498-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 08/01/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND In the Lophotrochozoa/Spiralia superphylum, few organisms have as high a capacity for rapid testing of gene function and single-cell transcriptomics as the freshwater planaria. The species Schmidtea mediterranea in particular has become a powerful model to use in studying adult stem cell biology and mechanisms of regeneration. Despite this, systematic attempts to define gene complements and their annotations are lacking, restricting comparative analyses that detail the conservation of biochemical pathways and identify lineage-specific innovations. RESULTS In this study we compare several transcriptomes and define a robust set of 35,232 transcripts. From this, we perform systematic functional annotations and undertake a genome-scale metabolic reconstruction for S. mediterranea. Cross-species comparisons of gene content identify conserved, lineage-specific, and expanded gene families, which may contribute to the regenerative properties of planarians. In particular, we find that the TRAF gene family has been greatly expanded in planarians. We further provide a single-cell RNA sequencing analysis of 2000 cells, revealing both known and novel cell types defined by unique signatures of gene expression. Among these are a novel mesenchymal cell population as well as a cell type involved in eye regeneration. Integration of our metabolic reconstruction further reveals the extent to which given cell types have adapted energy and nucleotide biosynthetic pathways to support their specialized roles. CONCLUSIONS In general, S. mediterranea displays a high level of gene and pathway conservation compared with other model systems, rendering it a viable model to study the roles of these pathways in stem cell biology and regeneration.
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Affiliation(s)
| | - Alyssa M Molinaro
- Hospital for Sick Children, Toronto, ON, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Nicole Lindsay-Mosher
- Hospital for Sick Children, Toronto, ON, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Bret J Pearson
- Hospital for Sick Children, Toronto, ON, Canada. .,Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada. .,Ontario Institute for Cancer Research, Toronto, ON, Canada.
| | - John Parkinson
- Hospital for Sick Children, Toronto, ON, Canada. .,Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada. .,Department of Biochemistry, University of Toronto, Toronto, ON, Canada.
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22
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Roohi A, Tabrizi M, Yaseri M, Mohammadrezaei FM, Nikbin B. Healthy Adult LDL-C Bears Reverse Association with Serum IL-17A Levels. Curr Chem Genom Transl Med 2018; 12:1-8. [PMID: 30069429 PMCID: PMC6047196 DOI: 10.2174/2213988501812010001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 05/26/2018] [Accepted: 06/12/2018] [Indexed: 02/05/2023] Open
Abstract
Background: Hypercholesterolemia is a modifiable risk factor in atherosclerosis with a complex association with inflammation. Objective: In the present study, the association between low-density lipoprotein cholesterol (LDL-C) and interleukin 17A (IL-17A), as an inflammatory cytokine, was investigated. In addition to IL-17A, serum levels of interleukin 23 (IL-23) and transforming growth factor β (TGF-β), as effective cytokines in T helper 17 cell (Th17) development, were also determined. Method: Cytokine levels were measured using enzyme-linked immunosorbent assay (ELISA) in healthy subjects with LDL-C<130 versus LDL-C=>130 mg/dL. Results: Although IL-17A is an inflammatory cytokine and a positive association between its levels and LDL-C is expected, the data obtained in this study provide support for a reverse association (p<0.05). Conclusion: Inflammation plays a major role in atherosclerosis development; however, various inflammatory components involved in atherosclerosis assert their own unique association with hypercholesterolemia.
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Affiliation(s)
- Azam Roohi
- Department of Immunology, School of Public Health,Tehran University of Medical Sciences,Tehran,Iran
| | - Mina Tabrizi
- Department of Medical Genetics, School of Medicine,Tehran University of Medical Sciences,Tehran,Iran
| | - Mehdi Yaseri
- Department of Epidemiology and Biostatistics, School of Public Health,Tehran University of Medical Sciences,Tehran,Iran
| | | | - Behrouz Nikbin
- Department of Immunology, School of Medicine,Tehran University of Medical Sciences,Tehran,Iran
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23
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Li S, Cao H, Shen D, Jia Q, Chen C, Xing SL. Quercetin protects against ox‑LDL‑induced injury via regulation of ABCAl, LXR‑α and PCSK9 in RAW264.7 macrophages. Mol Med Rep 2018; 18:799-806. [PMID: 29845234 PMCID: PMC6059709 DOI: 10.3892/mmr.2018.9048] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 05/04/2018] [Indexed: 02/01/2023] Open
Abstract
Quercetin is a flavonoid that has anti‑inflammatory, anti‑oxidant and lipid metabolic effects. It has also been reported to reduce the risk of cardiovascular disease. The present study measured the effects of quercetin on the expression of ATP‑binding cassette transporter 1 (ABCAl), ATP‑binding cassette sub‑family G member 1 (ABCG1), liver X receptor‑α (LXR‑α), proprotein convertase subtilisin/kexin type 9 (PCSK9), p53, p21 and p16 induced by oxidized low density lipoprotein (ox‑LDL). RAW264.7 macrophages were exposed to ox‑LDL with or without 20 µmol/l quercetin and cell proliferation and senescence were quantified using β‑gal staining. Superoxide dismutase (SOD), malondialdehyde (MDA) and lipid droplets were measured in the cytoplasm using oil red staining, while intracellular and total cholesterol (TC) were measured using filipin staining and a TC kit. Immunofluorescent studies and western blot analysis were performed to quantify the expression of ABCAl, ABCG1, LXR‑α, PCSK9, p53, p21 and p16. Quercetin increased RAW264.7 cell viability and reduced lipid accumulation, senescence, lipid droplets, intracellular cholesterol and TC. It was concluded that quercetin inhibits ox‑LDL‑induced lipid droplets in RAW264.7 cells by upregulation of ABCAl, ABCG1, LXR‑α and downregulation of PCSK9, p53, p21 and p16.
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Affiliation(s)
- Shanshan Li
- Shanghai Geriatrics Institute of Chinese Medicine, Shanghai 200031, P.R. China
| | - Hui Cao
- Shanghai Geriatrics Institute of Chinese Medicine, Shanghai 200031, P.R. China
| | - Dingzhu Shen
- Shanghai Geriatrics Institute of Chinese Medicine, Shanghai 200031, P.R. China
| | - Qingling Jia
- Shanghai Geriatrics Institute of Chinese Medicine, Shanghai 200031, P.R. China
| | - Chuan Chen
- Shanghai Geriatrics Institute of Chinese Medicine, Shanghai 200031, P.R. China
| | - San Li Xing
- Shanghai Geriatrics Institute of Chinese Medicine, Shanghai 200031, P.R. China
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Ouyang N, Gan H, He Q, Lei H, Wang SY, Liu Q, Zhou C. Dysfunction of cholesterol sensor SCAP promotes inflammation activation in THP-1 macrophages. Exp Cell Res 2018; 367:162-169. [PMID: 29596892 DOI: 10.1016/j.yexcr.2018.03.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 03/15/2018] [Accepted: 03/24/2018] [Indexed: 01/19/2023]
Abstract
Crosstalk occurs between dyslipidemia and chronic inflammation, which are both precipitants of atherosclerosis. Sterol regulatory element binding proteins cleavage-activating protein (SCAP) plays a key role in regulating cholesterol homeostasis. The present study investigated the effects of SCAP dysfunction on the expression of inflammatory cytokines and lipid metabolism in THP-1 macrophages. Intracellular cholesterol content was assessed by Oil Red O staining and quantitative assays. The expression of SCAP, HMGCR, pro-IL-1β and N-SREBP2, p65(N) in the nucleus were examined by real-time quantitative RT-PCR and Western blotting. The level of secretary proteins IL-1β, TNF-α and MCP-1 in the supernatants were determined by ELISA. The translocation of SCAP from the endoplasmic reticulum (ER) to the Golgi was detected by confocal microscopy. Our results demonstrated that over-expression of SCAP significantly increased the expression of HMGCR, pro-IL-1β in the cytoplasm, and mature IL-1β, TNF-α, MCP-1 in the supernatants, while knocking down SCAP dramatically decreased the expression of these molecules. Betulin effectively suppressed the accumulation of intracellular cholesterol in the SCAP over-expressed THP-1 macrophages, but did not affect the expression of inflammatory cytokines, indicating that the pro-inflammatory effect of SCAP was independent of its routine role in regulating cholesterol homeostasis. Furthermore, we investigated the molecular mechanisms mediating the crosstalk between dyslipidemia and inflammatory responses. Knocking down SCAP attenuated LPS-induced IκB phosphorylation and reduced the nuclear level of p65, while over-expression of SCAP increased the nuclear level of p65. Knocking down p65 abolished the proinflammatory effect represented by elevated expression of the inflammatory mediators in the SCAP over-expressed THP-1 macrophages, suggesting that SCAP dysfunction stimulated inflammatory responses via activating the NF-κB signaling pathway. In conclusion, the cholesterol sensor SCAP plays a role in regulating the expression of inflammatory factors such as IL-1β, TNF-α, and MCP-1 in THP-1 macrophages. SCAP mediates the inflammatory response via activating the NF-κB pathway. This new function of SCAP is independent of its role in lipid metabolism.
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Affiliation(s)
- Nan Ouyang
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Hua Gan
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Quan He
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Han Lei
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China; Centre for Lipid Research, Key Laboratory of Metabolism on Lipid and Glucose, Chongqing Medical University, Chongqing 400016, PR China
| | - Stephen Y Wang
- Geisel School of Medicine at Dartmouth, 1 Rope Ferry Rd, Hanover, NH 03755, USA
| | - Qing Liu
- Centre for Clinical Research, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Chao Zhou
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China; Centre for Lipid Research, Key Laboratory of Metabolism on Lipid and Glucose, Chongqing Medical University, Chongqing 400016, PR China.
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25
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Genoula M, Marín Franco JL, Dupont M, Kviatcovsky D, Milillo A, Schierloh P, Moraña EJ, Poggi S, Palmero D, Mata-Espinosa D, González-Domínguez E, León Contreras JC, Barrionuevo P, Rearte B, Córdoba Moreno MO, Fontanals A, Crotta Asis A, Gago G, Cougoule C, Neyrolles O, Maridonneau-Parini I, Sánchez-Torres C, Hernández-Pando R, Vérollet C, Lugo-Villarino G, Sasiain MDC, Balboa L. Formation of Foamy Macrophages by Tuberculous Pleural Effusions Is Triggered by the Interleukin-10/Signal Transducer and Activator of Transcription 3 Axis through ACAT Upregulation. Front Immunol 2018; 9:459. [PMID: 29593722 PMCID: PMC5854656 DOI: 10.3389/fimmu.2018.00459] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/20/2018] [Indexed: 12/18/2022] Open
Abstract
The ability of Mycobacterium tuberculosis (Mtb) to persist in its human host relies on numerous immune evasion strategies, such as the deregulation of the lipid metabolism leading to the formation of foamy macrophages (FM). Yet, the specific host factors leading to the foamy phenotype of Mtb-infected macrophages remain unknown. Herein, we aimed to address whether host cytokines contribute to FM formation in the context of Mtb infection. Our approach is based on the use of an acellular fraction of tuberculous pleural effusions (TB-PE) as a physiological source of local factors released during Mtb infection. We found that TB-PE induced FM differentiation as observed by the increase in lipid bodies, intracellular cholesterol, and expression of the scavenger receptor CD36, as well as the enzyme acyl CoA:cholesterol acyl transferase (ACAT). Importantly, interleukin-10 (IL-10) depletion from TB-PE prevented the augmentation of all these parameters. Moreover, we observed a positive correlation between the levels of IL-10 and the number of lipid-laden CD14+ cells among the pleural cells in TB patients, demonstrating that FM differentiation occurs within the pleural environment. Downstream of IL-10 signaling, we noticed that the transcription factor signal transducer and activator of transcription 3 was activated by TB-PE, and its chemical inhibition prevented the accumulation of lipid bodies and ACAT expression in macrophages. In terms of the host immune response, TB-PE-treated macrophages displayed immunosuppressive properties and bore higher bacillary loads. Finally, we confirmed our results using bone marrow-derived macrophage from IL-10-/- mice demonstrating that IL-10 deficiency partially prevented foamy phenotype induction after Mtb lipids exposure. In conclusion, our results evidence a role of IL-10 in promoting the differentiation of FM in the context of Mtb infection, contributing to our understanding of how alterations of the host metabolic factors may favor pathogen persistence.
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Affiliation(s)
- Melanie Genoula
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina
| | - José Luis Marín Franco
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina
| | - Maeva Dupont
- International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina.,Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Denise Kviatcovsky
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina
| | - Ayelén Milillo
- Laboratorio de Fisiología de los Procesos Inflamatorios, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Pablo Schierloh
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina
| | - Eduardo Jose Moraña
- Instituto Prof. Dr. Raúl Vaccarezza, Hospital de Infecciosas Dr. F. J. Muñiz, Buenos Aires, Argentina
| | - Susana Poggi
- Instituto Prof. Dr. Raúl Vaccarezza, Hospital de Infecciosas Dr. F. J. Muñiz, Buenos Aires, Argentina
| | - Domingo Palmero
- Instituto Prof. Dr. Raúl Vaccarezza, Hospital de Infecciosas Dr. F. J. Muñiz, Buenos Aires, Argentina
| | - Dulce Mata-Espinosa
- Sección de Patología Experimental, Departamento de Patología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Erika González-Domínguez
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Juan Carlos León Contreras
- Sección de Patología Experimental, Departamento de Patología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Paula Barrionuevo
- Laboratorio de Fisiología de los Procesos Inflamatorios, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Bárbara Rearte
- Laboratorio de Fisiología de los Procesos Inflamatorios, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Marlina Olyissa Córdoba Moreno
- Laboratorio de Fisiología de los Procesos Inflamatorios, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | | | - Agostina Crotta Asis
- Laboratory of Physiology and Genetics of Actinomycetes, Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Gabriela Gago
- Laboratory of Physiology and Genetics of Actinomycetes, Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Céline Cougoule
- International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina.,Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Olivier Neyrolles
- International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina.,Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Isabelle Maridonneau-Parini
- International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina.,Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Carmen Sánchez-Torres
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Rogelio Hernández-Pando
- Sección de Patología Experimental, Departamento de Patología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Christel Vérollet
- International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina.,Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Geanncarlo Lugo-Villarino
- International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina.,Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - María Del Carmen Sasiain
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina
| | - Luciana Balboa
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Toulouse, France.,International Associated Laboratory (LIA) CNRS IM-TB/HIV (1167), Buenos Aires, Argentina
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26
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Atherogenic diet induced lipid accumulation induced NFκB level in heart, liver and brain of Wistar rat and diosgenin as an anti-inflammatory agent. Life Sci 2018; 196:28-37. [DOI: 10.1016/j.lfs.2018.01.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 01/11/2018] [Accepted: 01/11/2018] [Indexed: 12/11/2022]
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27
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Mailer RKW, Gisterå A, Polyzos KA, Ketelhuth DFJ, Hansson GK. Hypercholesterolemia Induces Differentiation of Regulatory T Cells in the Liver. Circ Res 2017; 120:1740-1753. [PMID: 28420668 DOI: 10.1161/circresaha.116.310054] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 04/13/2017] [Accepted: 04/17/2017] [Indexed: 11/16/2022]
Abstract
RATIONALE The liver is the central organ that responds to dietary cholesterol intake and facilitates the release and clearance of lipoprotein particles. Persistent hypercholesterolemia leads to immune responses against lipoprotein particles that drive atherosclerosis. However, the effect of hypercholesterolemia on hepatic T-cell differentiation remains unknown. OBJECTIVE To investigate hepatic T-cell subsets upon hypercholesterolemia. METHODS AND RESULTS We observed that hypercholesterolemia elevated the intrahepatic regulatory T (Treg) cell population and increased the expression of transforming growth factor-β1 in the liver. Adoptive transfer experiments revealed that intrahepatically differentiated Treg cells relocated to the inflamed aorta in atherosclerosis-prone low-density lipoprotein receptor deficient (Ldlr-/-) mice. Moreover, hypercholesterolemia induced the differentiation of intrahepatic, but not intrasplenic, Th17 cells in wild-type mice, whereas the disrupted liver homeostasis in hypercholesterolemic Ldlr-/- mice led to intrahepatic Th1 cell differentiation and CD11b+CD11c+ leukocyte accumulation. CONCLUSIONS Our results elucidate a new mechanism that controls intrahepatic T-cell differentiation during atherosclerosis development and indicates that intrahepatically differentiated T cells contribute to the CD4+ T-cell pool in the atherosclerotic aorta.
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Affiliation(s)
- Reiner K W Mailer
- From the Cardiovascular Medicine Unit, Department of Medicine, Karolinska Insititutet, Karolinska University Hospital, Stockholm, Sweden
| | - Anton Gisterå
- From the Cardiovascular Medicine Unit, Department of Medicine, Karolinska Insititutet, Karolinska University Hospital, Stockholm, Sweden
| | - Konstantinos A Polyzos
- From the Cardiovascular Medicine Unit, Department of Medicine, Karolinska Insititutet, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel F J Ketelhuth
- From the Cardiovascular Medicine Unit, Department of Medicine, Karolinska Insititutet, Karolinska University Hospital, Stockholm, Sweden
| | - Göran K Hansson
- From the Cardiovascular Medicine Unit, Department of Medicine, Karolinska Insititutet, Karolinska University Hospital, Stockholm, Sweden.
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28
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Leite F, Lima M, Marino F, Cosentino M, Ribeiro L. β 2 Adrenoceptors are underexpressed in peripheral blood mononuclear cells and associated with a better metabolic profile in central obesity. Int J Med Sci 2017; 14:853-861. [PMID: 28824322 PMCID: PMC5562192 DOI: 10.7150/ijms.19638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 05/17/2017] [Indexed: 11/05/2022] Open
Abstract
Background: Central obesity (CO) is an inflammatory disease. Because immune cells and adipocytes are catecholamines(CA)-producing cells, we studied the expression of adrenoceptors (AR) in peripheral blood mononuclear cells (PBMCs) hypothesizing a distinct adrenergic pattern in inflammatory obesity. Methods: AR expression was assessed in blood donors categorized by waist circumference (WC) (CO: WC≥0.80 m in women and ≥0.94 m in men). Following a pilot study for all AR subtypes, we measured β2AR expression in fifty-seven individuals and correlated this result with anthropometric, metabolic and inflammatory parameters. A ratio (R) between AR mRNA of CO and non-CO<0.5 was considered under and >2.0 over expression. Results: The pilot study revealed no differences between groups, except for β2AR mRNA. CO individuals showed underexpression of β2AR relatively to those without CO (R=0.08; p=0.009). β2AR expression inversely correlated with triacylglycerol (r=-0.271; p=0.041), very low-density lipoprotein-cholesterol (r=-0.313; p=0.018) and leptin (r=-0.392; p=0.012) and positively with high-density lipoprotein-cholesterol (r=0.310: p=0.045) plasma levels. Multiple logistic regression analysis showed a protective effect of β2AR expression (≥2x10-6) [odds ratio (OR) 0.177 with respective confidence interval of 95% (95% CI) (0.040- 0.796)] for the occurrence of CO. A higher association was found for women as compared to men (Ξ9:1) [OR 8.972 (95% CI) (1.679-47.949)]. Conclusion: PBMCs β2AR, underexpressed in centrally obese, are associated with a better metabolic profile and showed a protective role for the development of CO. The discovery of β2AR as a new molecular marker of obesity subphenotypes in PBMCs might contribute to clarify the adrenergic immunomodulation of inflammatory obesity.
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Affiliation(s)
- Fernanda Leite
- Department of Biomedicine, Faculty of Medicine, University of Porto, Portugal.,Department of Clinical Haematology, Centro Hospitalar of Porto, Portugal.,UMIB/ICBAS - Unit for Multidisciplinary Investigation in Biomedicine- Instituto de Ciências Biomédicas Abel Salazar, Porto, Portugal
| | - Margarida Lima
- Department of Clinical Haematology, Centro Hospitalar of Porto, Portugal.,UMIB/ICBAS - Unit for Multidisciplinary Investigation in Biomedicine- Instituto de Ciências Biomédicas Abel Salazar, Porto, Portugal
| | - Franca Marino
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Marco Cosentino
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Laura Ribeiro
- Department of Biomedicine, Faculty of Medicine, University of Porto, Portugal.,Department of Public Health Sciences, Forensic and Medical Education, Faculty of Medicine, University of Porto, Portugal.,I3S-Instituto de Investigação e Inovação em Saúde, University of Porto, Portugal
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29
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van Dam AD, Bekkering S, Crasborn M, van Beek L, van den Berg SM, Vrieling F, Joosten SA, van Harmelen V, de Winther MPJ, Lütjohann D, Lutgens E, Boon MR, Riksen NP, Rensen PCN, Berbée JFP. BCG lowers plasma cholesterol levels and delays atherosclerotic lesion progression in mice. Atherosclerosis 2016; 251:6-14. [PMID: 27232458 DOI: 10.1016/j.atherosclerosis.2016.05.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 05/03/2016] [Accepted: 05/18/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND AIMS Bacille-Calmette-Guérin (BCG), prepared from attenuated live Mycobacterium bovis, modulates atherosclerosis development as currently explained by immunomodulatory mechanisms. However, whether BCG is pro- or anti-atherogenic remains inconclusive as the effect of BCG on cholesterol metabolism, the main driver of atherosclerosis development, has remained underexposed in previous studies. Therefore, we aimed to elucidate the effect of BCG on cholesterol metabolism in addition to inflammation and atherosclerosis development in APOE*3-Leiden.CETP mice, a well-established model of human-like lipoprotein metabolism. METHODS Hyperlipidemic APOE*3-Leiden.CETP mice were fed a Western-type diet containing 0.1% cholesterol and were terminated 6 weeks after a single intravenous injection with BCG (0.75 mg; 5 × 10(6) CFU). RESULTS BCG-treated mice exhibited hepatic mycobacterial infection and hepatomegaly. The enlarged liver (+53%, p = 0.001) coincided with severe immune cell infiltration and a higher cholesterol content (+31%, p = 0.03). Moreover, BCG reduced plasma total cholesterol levels (-34%, p = 0.003), which was confined to reduced nonHDL-cholesterol levels (-36%, p = 0.002). This was due to accelerated plasma clearance of cholesterol from intravenously injected [(14)C]cholesteryl oleate-labelled VLDL-like particles (t½ -41%, p = 0.002) as a result of elevated hepatic uptake (+25%, p = 0.05) as well as reduced intestinal cholestanol and plant sterol absorption (up to -37%, p = 0.003). Ultimately, BCG decreased foam cell formation of peritoneal macrophages (-18%, p = 0.02) and delayed atherosclerotic lesion progression in the aortic root of the heart. BCG tended to decrease atherosclerotic lesion area (-59%, p = 0.08) and reduced lesion severity. CONCLUSIONS BCG reduces plasma nonHDL-cholesterol levels and delays atherosclerotic lesion formation in hyperlipidemic mice.
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Affiliation(s)
- Andrea D van Dam
- Dept. of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden, The Netherlands.
| | - Siroon Bekkering
- Dept. of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Malou Crasborn
- Dept. of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden, The Netherlands
| | - Lianne van Beek
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden, The Netherlands; Dept. of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Susan M van den Berg
- Dept. of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands
| | - Frank Vrieling
- Dept. of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Simone A Joosten
- Dept. of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Vanessa van Harmelen
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden, The Netherlands; Dept. of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Menno P J de Winther
- Dept. of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands
| | - Dieter Lütjohann
- Institute of Clinical Chemistry and Clinical Pharmacology, University Clinics Bonn, Bonn, Germany
| | - Esther Lutgens
- Dept. of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands; Institute for Cardiovascular Prevention, Ludwig Maximilian's University Munich, Munich, Germany
| | - Mariëtte R Boon
- Dept. of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden, The Netherlands
| | - Niels P Riksen
- Dept. of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Patrick C N Rensen
- Dept. of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden, The Netherlands
| | - Jimmy F P Berbée
- Dept. of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden, The Netherlands
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30
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Metabolomic study on the faecal extracts of atherosclerosis mice and its application in a Traditional Chinese Medicine. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1007:140-8. [PMID: 26596842 DOI: 10.1016/j.jchromb.2015.10.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 10/13/2015] [Accepted: 10/14/2015] [Indexed: 02/05/2023]
Abstract
The intestinal microbiota and their metabolites are closely related to the formation of atherosclerosis (AS). In this study, a metabolomic approach based on the reversed-phase liquid chromatography/quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS) platform was established to analyze the metabolic profiling of fecal extracts from AS mice model. The established metabolomic platform was also used for clearing the effective mechanism of a Traditional Chinese Medicine (TCM) named Sishen granule (SSKL). Totally, sixteen potential biomarkers in faeces of AS mice were identified and 5 of them could be reversed by SSKL. Through functional analysis of these biomarkers and the established network, lipid metabolism, cholesterol metabolism, energy cycle, and inflammation reaction were considered as the most relevant pathological changes in gastrointestinal tract of AS mice. The metabolomic study not only revealed the potential biomarkers in AS mice' faeces but also supplied a systematic view of the pathological changes in gastrointestinal metabolite in AS mice. This metabolomic study also demonstrated that SSKL had the therapeutic effectiveness on AS through partly reversing the lipid metabolism, inflammation and energy metabolism.
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31
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Hsu YC, Hsu CC, Chang KH, Lee CY, Chong LW, Wang YC, Kao CH. Increased Subsequent Risk of Peptic Ulcer Diseases in Patients With Bipolar Disorders. Medicine (Baltimore) 2015; 94:e1203. [PMID: 26200637 PMCID: PMC4602988 DOI: 10.1097/md.0000000000001203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Previous studies have reported that patients with bipolar disorders (BDs) exhibit increased physical comorbidity and psychological distress. Studies have shown that schizophrenia and anxiety increase the risk of peptic ulcer diseases (PUDs). Therefore, we conducted this study to determine the association between these 2 diseases and examine the possible risk factors. We used patients diagnosed with BDs from the Taiwan National Health Insurance Research Database. A comparison cohort comprising patients without BDs was frequency matched by age, sex, and comorbidities, and the occurrence of PUDs was evaluated in both the cohorts. The BD and non-BD cohort consisted of 21,060 patients with BDs and 84,240 frequency-matched patients without BDs, respectively. The incidence of PUDs (hazard ratio, 1.51; 95% confidence interval, 1.43-1.59; P < 0.001) was higher among the patients with BDs than the control patients. Cox models showed that irrespective of comorbidities, BDs were an independent risk factor for PUDs. Patients with BDs exhibit a substantially higher risk for developing PUDs. According to our data, we suggest that, following a diagnosis of BD, practitioners could notice the occurrence of PUD and associated prevention. Further prospective clinical studies investigating the relationship between BDs and PUDs are warranted.
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Affiliation(s)
- Yi-Chao Hsu
- From the Department of Psychiatry (C-CH), Kaohsiung Veterans General Hospital, Kaohsiung; Institute of Biomedical Sciences (Y-CH), Mackay Medical College, Taipei; Department of Medical Research (K-HC), Taichung Veterans General Hospital, Taichung; School of Chinese Medicine for Post-Baccalaureate (C-YL), I-Shou University, Kaohsiung; Division of Hepatology and Gastroenterology (L-WC), Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei; Management Office for Health Data (Y-CW), China Medical University Hospital, Taichung; College of Medicine (Y-CW), China Medical University, Taichung; Department of Nuclear Medicine and PET Center (C-HK), China Medical University Hospital, Taichung; Graduate Institute of Clinical Medical Science and School of Medicine (C-HK), College of Medicine, China Medical University, Taichung, Taiwan
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