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Chandrasekaran P, Weiskirchen S, Weiskirchen R. Structure, Functions, and Implications of Selected Lipocalins in Human Disease. Int J Mol Sci 2024; 25:4290. [PMID: 38673873 PMCID: PMC11050150 DOI: 10.3390/ijms25084290] [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: 03/20/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
The lipocalin proteins are a large family of small extracellular proteins that demonstrate significant heterogeneity in sequence similarity and have highly conserved crystal structures. They have a variety of functions, including acting as carrier proteins, transporting retinol, participating in olfaction, and synthesizing prostaglandins. Importantly, they also play a critical role in human diseases, including cancer. Additionally, they are involved in regulating cellular homeostasis and immune response and dispensing various compounds. This comprehensive review provides information on the lipocalin family, including their structure, functions, and implications in various diseases. It focuses on selective important human lipocalin proteins, such as lipocalin 2 (LCN2), retinol binding protein 4 (RBP4), prostaglandin D2 synthase (PTGDS), and α1-microglobulin (A1M).
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Affiliation(s)
| | - Sabine Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), Rheinisch-Westfälische Technische Hochschule (RWTH) University Hospital Aachen, D-52074 Aachen, Germany;
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), Rheinisch-Westfälische Technische Hochschule (RWTH) University Hospital Aachen, D-52074 Aachen, Germany;
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2
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Liu X, Shao Y, Han L, Zhang R, Chen J. Emerging Evidence Linking the Liver to the Cardiovascular System: Liver-derived Secretory Factors. J Clin Transl Hepatol 2023; 11:1246-1255. [PMID: 37577236 PMCID: PMC10412704 DOI: 10.14218/jcth.2022.00122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/19/2022] [Accepted: 02/27/2023] [Indexed: 07/03/2023] Open
Abstract
Cardiovascular diseases (CVDs) remain the leading cause of morbidity and mortality worldwide. Recently, accumulating evidence has revealed hepatic mediators, termed as liver-derived secretory factors (LDSFs), play an important role in regulating CVDs such as atherosclerosis, coronary artery disease, thrombosis, myocardial infarction, heart failure, metabolic cardiomyopathy, arterial hypertension, and pulmonary hypertension. LDSFs presented here consisted of microbial metabolite, extracellular vesicles, proteins, and microRNA, they are primarily or exclusively synthesized and released by the liver, and have been shown to exert pleiotropic actions on cardiovascular system. LDSFs mainly target vascular endothelial cell, vascular smooth muscle cells, cardiomyocytes, fibroblasts, macrophages and platelets, and further modulate endothelial nitric oxide synthase/nitric oxide, endothelial function, energy metabolism, inflammation, oxidative stress, and dystrophic calcification. Although some LDSFs are known to be detrimental/beneficial, controversial findings were also reported for many. Therefore, more studies are required to further explore the causal relationships between LDSFs and CVDs and uncover the exact mechanisms, which is expected to extend our understanding of the crosstalk between the liver and cardiovascular system and identify potential therapeutic targets. Furthermore, in the case of patients with liver disease, awareness should be given to the implications of these abnormalities in the cardiovascular system. These studies also underline the importance of early recognition and intervention of liver abnormalities in the practice of cardiovascular care, and a multidisciplinary approach combining hepatologists and cardiologists would be more preferable for such patients.
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Affiliation(s)
- Xiang Liu
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Yijia Shao
- Department of Geriatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Linjiang Han
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Ruyue Zhang
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Jimei Chen
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
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3
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Zhu Q, Li M, Lu W, Wang Y, Li X, Cheng J. Transcriptomic Modulation Reveals the Specific Cellular Response in Chinese Sea Bass ( Lateolabrax maculatus) Gills under Salinity Change and Alkalinity Stress. Int J Mol Sci 2023; 24:ijms24065877. [PMID: 36982950 PMCID: PMC10056482 DOI: 10.3390/ijms24065877] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/27/2023] [Accepted: 03/12/2023] [Indexed: 03/30/2023] Open
Abstract
Salinity and alkalinity are among the important factors affecting the distribution, survival, growth and physiology of aquatic animals. Chinese sea bass (Lateolabrax maculatus) is an important aquaculture fish species in China that can widely adapt to diverse salinities from freshwater (FW) to seawater (SW) but moderately adapt to highly alkaline water (AW). In this study, juvenile L. maculatus were exposed to salinity change (SW to FW) and alkalinity stress (FW to AW). Coordinated transcriptomic responses in L. maculatus gills were investigated and based on the weighted gene co-expression network analysis (WGCNA), 8 and 11 stress-responsive modules (SRMs) were identified for salinity change and alkalinity stress, respectively, which revealed a cascade of cellular responses to oxidative and osmotic stress in L. maculatus gills. Specifically, four upregulated SRMs were enriched with induced differentially expressed genes (DEGs) for alkalinity stress, mainly corresponding to the functions of "extracellular matrix" and "anatomical structure", indicating a strong cellular response to alkaline water. Both "antioxidative activity" and "immune response" functions were enriched in the downregulated alkaline SRMs, which comprised inhibited alkaline specific DEGs, revealing the severely disrupted immune and antioxidative functions under alkalinity stress. These alkaline-specific responses were not revealed in the salinity change groups with only moderately inhibited osmoregulation and induced antioxidative response in L. maculatus gills. Therefore, the results revealed the diverse and correlated regulation of the cellular process and stress response in saline-alkaline water, which may have arisen through the functional divergence and adaptive recruitment of the co-expression genes and will provide vital insights for the development of L. maculatus cultivation in alkaline water.
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Affiliation(s)
- Qing Zhu
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 5 Yushan Road, Qingdao 266003, China
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China
| | - Moli Li
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 5 Yushan Road, Qingdao 266003, China
| | - Wei Lu
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 5 Yushan Road, Qingdao 266003, China
| | - Yapeng Wang
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 5 Yushan Road, Qingdao 266003, China
| | - Xujian Li
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 5 Yushan Road, Qingdao 266003, China
| | - Jie Cheng
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 5 Yushan Road, Qingdao 266003, China
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China
- Laboratory for Marine Fisheries Science and Food Production Processes, National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, China
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4
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Berezin AA, Obradovic Z, Berezina TA, Boxhammer E, Lichtenauer M, Berezin AE. Cardiac Hepatopathy: New Perspectives on Old Problems through a Prism of Endogenous Metabolic Regulations by Hepatokines. Antioxidants (Basel) 2023; 12:antiox12020516. [PMID: 36830074 PMCID: PMC9951884 DOI: 10.3390/antiox12020516] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/12/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Cardiac hepatopathy refers to acute or chronic liver damage caused by cardiac dysfunction in the absence of any other possible causative reasons of liver injury. There is a large number of evidence of the fact that cardiac hepatopathy is associated with poor clinical outcomes in patients with acute or actually decompensated heart failure (HF). However, the currently dominated pathophysiological background does not explain a role of metabolic regulative proteins secreted by hepatocytes in progression of HF, including adverse cardiac remodeling, kidney injury, skeletal muscle dysfunction, osteopenia, sarcopenia and cardiac cachexia. The aim of this narrative review was to accumulate knowledge of hepatokines (adropin; fetuin-A, selenoprotein P, fibroblast growth factor-21, and alpha-1-microglobulin) as adaptive regulators of metabolic homeostasis in patients with HF. It is suggested that hepatokines play a crucial, causative role in inter-organ interactions and mediate tissue protective effects counteracting oxidative stress, inflammation, mitochondrial dysfunction, apoptosis and necrosis. The discriminative potencies of hepatokines for HF and damage of target organs in patients with known HF is under on-going scientific discussion and requires more investigations in the future.
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Affiliation(s)
- Alexander A. Berezin
- Internal Medicine Department, Zaporozhye Medical Academy of Postgraduate Education, 69000 Zaporozhye, Ukraine
- Klinik Barmelweid, Department of Psychosomatic Medicine and Psychotherapy, 5017 Barmelweid, Switzerland
| | - Zeljko Obradovic
- Klinik Barmelweid, Department of Psychosomatic Medicine and Psychotherapy, 5017 Barmelweid, Switzerland
| | - Tetiana A. Berezina
- Department of Internal Medicine & Nephrology, VitaCenter, 69000 Zaporozhye, Ukraine
| | - Elke Boxhammer
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Michael Lichtenauer
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Alexander E. Berezin
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
- Internal Medicine Department, Zaporozhye State Medical University, 69035 Zaporozhye, Ukraine
- Correspondence:
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Nurmohamed NS, Belo Pereira JP, Hoogeveen RM, Kroon J, Kraaijenhof JM, Waissi F, Timmerman N, Bom MJ, Hoefer IE, Knaapen P, Catapano AL, Koenig W, de Kleijn D, Visseren FL, Levin E, Stroes ES. OUP accepted manuscript. Eur Heart J 2022; 43:1569-1577. [PMID: 35139537 PMCID: PMC9020984 DOI: 10.1093/eurheartj/ehac055] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/19/2022] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
Aims Current risk scores do not accurately identify patients at highest risk of recurrent atherosclerotic cardiovascular disease (ASCVD) in need of more intensive therapeutic interventions. Advances in high-throughput plasma proteomics, analysed with machine learning techniques, may offer new opportunities to further improve risk stratification in these patients. Methods and results Targeted plasma proteomics was performed in two secondary prevention cohorts: the Second Manifestations of ARTerial disease (SMART) cohort (n = 870) and the Athero-Express cohort (n = 700). The primary outcome was recurrent ASCVD (acute myocardial infarction, ischaemic stroke, and cardiovascular death). Machine learning techniques with extreme gradient boosting were used to construct a protein model in the derivation cohort (SMART), which was validated in the Athero-Express cohort and compared with a clinical risk model. Pathway analysis was performed to identify specific pathways in high and low C-reactive protein (CRP) patient subsets. The protein model outperformed the clinical model in both the derivation cohort [area under the curve (AUC): 0.810 vs. 0.750; P < 0.001] and validation cohort (AUC: 0.801 vs. 0.765; P < 0.001), provided significant net reclassification improvement (0.173 in validation cohort) and was well calibrated. In contrast to a clear interleukin-6 signal in high CRP patients, neutrophil-signalling-related proteins were associated with recurrent ASCVD in low CRP patients. Conclusion A proteome-based risk model is superior to a clinical risk model in predicting recurrent ASCVD events. Neutrophil-related pathways were found in low CRP patients, implying the presence of a residual inflammatory risk beyond traditional NLRP3 pathways. The observed net reclassification improvement illustrates the potential of proteomics when incorporated in a tailored therapeutic approach in secondary prevention patients.
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Affiliation(s)
| | | | - Renate M. Hoogeveen
- Department of Vascular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Jeffrey Kroon
- Department of Vascular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Jordan M. Kraaijenhof
- Department of Vascular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Farahnaz Waissi
- Department of Vascular Surgery, Division of Surgical Specialties, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Nathalie Timmerman
- Department of Vascular Surgery, Division of Surgical Specialties, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Michiel J. Bom
- Department of Cardiology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Imo E. Hoefer
- Central Diagnostic Laboratory, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Paul Knaapen
- Department of Cardiology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Alberico L. Catapano
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milano, Italy
- IRCCS Multimedica, Milano, Italy
| | - Wolfgang Koenig
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
- German Centre for Cardiovascular Research (DZHK e.V.), Partner Site Munich Heart Alliance, Munich, Germany
- Institute of Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
| | - Dominique de Kleijn
- Department of Vascular Surgery, Division of Surgical Specialties, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Frank L.J. Visseren
- Department of Vascular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Evgeni Levin
- Department of Vascular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
- HorAIzon BV, Delft, The Netherlands
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Hawkins CL, Davies MJ. Role of myeloperoxidase and oxidant formation in the extracellular environment in inflammation-induced tissue damage. Free Radic Biol Med 2021; 172:633-651. [PMID: 34246778 DOI: 10.1016/j.freeradbiomed.2021.07.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/04/2021] [Accepted: 07/05/2021] [Indexed: 12/30/2022]
Abstract
The heme peroxidase family generates a battery of oxidants both for synthetic purposes, and in the innate immune defence against pathogens. Myeloperoxidase (MPO) is the most promiscuous family member, generating powerful oxidizing species including hypochlorous acid (HOCl). Whilst HOCl formation is important in pathogen removal, this species is also implicated in host tissue damage and multiple inflammatory diseases. Significant oxidant formation and damage occurs extracellularly as a result of MPO release via phagolysosomal leakage, cell lysis, extracellular trap formation, and inappropriate trafficking. MPO binds strongly to extracellular biomolecules including polyanionic glycosaminoglycans, proteoglycans, proteins, and DNA. This localizes MPO and subsequent damage, at least partly, to specific sites and species, including extracellular matrix (ECM) components and plasma proteins/lipoproteins. Biopolymer-bound MPO retains, or has enhanced, catalytic activity, though evidence is also available for non-catalytic effects. These interactions, particularly at cell surfaces and with the ECM/glycocalyx induce cellular dysfunction and altered gene expression. MPO binds with higher affinity to some damaged ECM components, rationalizing its accumulation at sites of inflammation. MPO-damaged biomolecules and fragments act as chemo-attractants and cell activators, and can modulate gene and protein expression in naïve cells, consistent with an increasing cycle of MPO adhesion, activity, damage, and altered cell function at sites of leukocyte infiltration and activation, with subsequent tissue damage and dysfunction. MPO levels are used clinically both diagnostically and prognostically, and there is increasing interest in strategies to prevent MPO-mediated damage; therapeutic aspects are not discussed as these have been reviewed elsewhere.
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Affiliation(s)
- Clare L Hawkins
- Department of Biomedical Sciences, University of Copenhagen, Panum Institute, Blegdamsvej 3B, Copenhagen N, DK-2200, Denmark
| | - Michael J Davies
- Department of Biomedical Sciences, University of Copenhagen, Panum Institute, Blegdamsvej 3B, Copenhagen N, DK-2200, Denmark.
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Ferryl Hemoglobin and Heme Induce A 1-Microglobulin in Hemorrhaged Atherosclerotic Lesions with Inhibitory Function against Hemoglobin and Lipid Oxidation. Int J Mol Sci 2021; 22:ijms22136668. [PMID: 34206377 PMCID: PMC8268598 DOI: 10.3390/ijms22136668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 12/12/2022] Open
Abstract
Infiltration of red blood cells into atheromatous plaques and oxidation of hemoglobin (Hb) and lipoproteins are implicated in the pathogenesis of atherosclerosis. α1-microglobulin (A1M) is a radical-scavenging and heme-binding protein. In this work, we examined the origin and role of A1M in human atherosclerotic lesions. Using immunohistochemistry, we observed a significant A1M immunoreactivity in atheromas and hemorrhaged plaques of carotid arteries in smooth muscle cells (SMCs) and macrophages. The most prominent expression was detected in macrophages of organized hemorrhage. To reveal a possible inducer of A1M expression in ruptured lesions, we exposed aortic endothelial cells (ECs), SMCs and macrophages to heme, Oxy- and FerrylHb. Both heme and FerrylHb, but not OxyHb, upregulated A1M mRNA expression in all cell types. Importantly, only FerrylHb induced A1M protein secretion in aortic ECs, SMCs and macrophages. To assess the possible function of A1M in ruptured lesions, we analyzed Hb oxidation and heme-catalyzed lipid peroxidation in the presence of A1M. We showed that recombinant A1M markedly inhibited Hb oxidation and heme-driven oxidative modification of low-density lipoproteins as well plaque lipids derived from atheromas. These results demonstrate the presence of A1M in atherosclerotic plaques and suggest its induction by heme and FerrylHb in the resident cells.
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Bergwik J, Kristiansson A, Larsson J, Ekström S, Åkerström B, Allhorn M. Binding of the human antioxidation protein α 1-microglobulin (A1M) to heparin and heparan sulfate. Mapping of binding site, molecular and functional characterization, and co-localization in vivo and in vitro. Redox Biol 2021; 41:101892. [PMID: 33607500 PMCID: PMC7900767 DOI: 10.1016/j.redox.2021.101892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/27/2022] Open
Abstract
Heparin and heparan sulfate (HS) are linear sulfated disaccharide polymers. Heparin is found mainly in mast cells, while heparan sulfate is found in connective tissue, extracellular matrix and on cell membranes in most tissues. α1-microglobulin (A1M) is a ubiquitous protein with thiol-dependent antioxidant properties, protecting cells and matrix against oxidative damage due to its reductase activities and radical- and heme-binding properties. In this work, it was shown that A1M binds to heparin and HS and can be purified from human plasma by heparin affinity chromatography and size exclusion chromatography. The binding strength is inversely dependent of salt concentration and proportional to the degree of sulfation of heparin and HS. Potential heparin binding sites, located on the outside of the barrel-shaped A1M molecule, were determined using hydrogen deuterium exchange mass spectrometry (HDX-MS). Immunostaining of endothelial cells revealed pericellular co-localization of A1M and HS and the staining of A1M was almost completely abolished after treatment with heparinase. A1M and HS were also found to be co-localized in vivo in the lungs, aorta, kidneys and skin of mice. The redox-active thiol group of A1M was unaffected by the binding to HS, and the cell protection and heme-binding abilities of A1M were slightly affected. The discovery of the binding of A1M to heparin and HS provides new insights into the biological role of A1M and represents the basis for a novel method for purification of A1M from plasma.
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Affiliation(s)
- Jesper Bergwik
- Section for Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden.
| | - Amanda Kristiansson
- Section for Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Jörgen Larsson
- Section for Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Simon Ekström
- Swedish National Infrastructure for Biological Mass Spectrometry (BioMS), Lund University, Lund, Sweden
| | - Bo Åkerström
- Section for Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Maria Allhorn
- Section for Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
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Bergwik J, Kristiansson A, Allhorn M, Gram M, Åkerström B. Structure, Functions, and Physiological Roles of the Lipocalin α 1-Microglobulin (A1M). Front Physiol 2021; 12:645650. [PMID: 33746781 PMCID: PMC7965949 DOI: 10.3389/fphys.2021.645650] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/12/2021] [Indexed: 12/30/2022] Open
Abstract
α1-microglobulin (A1M) is found in all vertebrates including humans. A1M was, together with retinol-binding protein and β-lactoglobulin, one of the three original lipocalins when the family first was proposed in 1985. A1M is described as an antioxidant and tissue cleaning protein with reductase, heme- and radical-binding activities. These biochemical properties are driven by a strongly electronegative surface-exposed thiol group, C34, on loop 1 of the open end of the lipocalin barrel. A1M has been shown to have protective effects in vitro and in vivo in cell-, organ-, and animal models of oxidative stress-related medical conditions. The gene coding for A1M is unique among lipocalins since it is flanked downstream by four exons coding for another non-lipocalin protein, bikunin, and is consequently named α1-microglobulin-bikunin precursor gene (AMBP). The precursor is cleaved in the Golgi, and A1M and bikunin are secreted from the cell separately. Recent publications have suggested novel physiological roles of A1M in regulation of endoplasmic reticulum activities and erythrocyte homeostasis. This review summarizes the present knowledge of the structure and functions of the lipocalin A1M and presents a current model of its biological role(s).
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Affiliation(s)
- Jesper Bergwik
- Department of Clinical Sciences, Section for Infection Medicine, Lund University, Lund, Sweden
| | - Amanda Kristiansson
- Department of Clinical Sciences, Section for Infection Medicine, Lund University, Lund, Sweden.,Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Maria Allhorn
- Department of Clinical Sciences, Section for Infection Medicine, Lund University, Lund, Sweden
| | - Magnus Gram
- Department of Clinical Sciences, Pediatrics, Lund University, Lund, Sweden
| | - Bo Åkerström
- Department of Clinical Sciences, Section for Infection Medicine, Lund University, Lund, Sweden
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10
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Myeloperoxidase: Mechanisms, reactions and inhibition as a therapeutic strategy in inflammatory diseases. Pharmacol Ther 2021; 218:107685. [DOI: 10.1016/j.pharmthera.2020.107685] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/09/2020] [Indexed: 12/17/2022]
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11
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Kristiansson A, Gram M, Flygare J, Hansson SR, Åkerström B, Storry JR. The Role of α 1-Microglobulin (A1M) in Erythropoiesis and Erythrocyte Homeostasis-Therapeutic Opportunities in Hemolytic Conditions. Int J Mol Sci 2020; 21:ijms21197234. [PMID: 33008134 PMCID: PMC7582998 DOI: 10.3390/ijms21197234] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 02/06/2023] Open
Abstract
α1-microglobulin (A1M) is a small protein present in vertebrates including humans. It has several physiologically relevant properties, including binding of heme and radicals as well as enzymatic reduction, that are used in the protection of cells and tissue. Research has revealed that A1M can ameliorate heme and ROS-induced injuries in cell cultures, organs, explants and animal models. Recently, it was shown that A1M could reduce hemolysis in vitro, observed with several different types of insults and sources of RBCs. In addition, in a recently published study, it was observed that mice lacking A1M (A1M-KO) developed a macrocytic anemia phenotype. Altogether, this suggests that A1M may have a role in RBC development, stability and turnover. This opens up the possibility of utilizing A1M for therapeutic purposes in pathological conditions involving erythropoietic and hemolytic abnormalities. Here, we provide an overview of A1M and its potential therapeutic effect in the context of the following erythropoietic and hemolytic conditions: Diamond-Blackfan anemia (DBA), 5q-minus myelodysplastic syndrome (5q-MDS), blood transfusions (including storage), intraventricular hemorrhage (IVH), preeclampsia (PE) and atherosclerosis.
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Affiliation(s)
- Amanda Kristiansson
- Section for Infection Medicine, Department of Clinical Sciences, Lund University, 221 84 Lund, Sweden;
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, 221 84 Lund, Sweden;
- Correspondence:
| | - Magnus Gram
- Department of Clinical Sciences Lund, Pediatrics, Lund University, 221 84 Lund, Sweden;
| | - Johan Flygare
- Department of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, 221 84 Lund, Sweden;
| | - Stefan R. Hansson
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences Lund, Lund University, 221 84 Lund, Sweden;
| | - Bo Åkerström
- Section for Infection Medicine, Department of Clinical Sciences, Lund University, 221 84 Lund, Sweden;
| | - Jill R. Storry
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, 221 84 Lund, Sweden;
- Department of Clinical Immunology and Transfusion Medicine, Office of Medical Services, 221 85 Lund, Sweden
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12
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Revelation of Proteomic Indicators for Colorectal Cancer in Initial Stages of Development. Molecules 2020; 25:molecules25030619. [PMID: 32023884 PMCID: PMC7036866 DOI: 10.3390/molecules25030619] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 02/07/2023] Open
Abstract
Background: Colorectal cancer (CRC) at a current clinical level is still hardly diagnosed, especially with regard to nascent tumors, which are typically asymptotic. Searching for reliable biomarkers of early diagnosis is an extremely essential task. Identification of specific post-translational modifications (PTM) may also significantly improve net benefits and tailor the process of CRC recognition. We examined depleted plasma samples obtained from 41 healthy volunteers and 28 patients with CRC at different stages to conduct comparative proteome-scaled analysis. The main goal of the study was to establish a constellation of protein markers in combination with their PTMs and semi-quantitative ratios that may support and realize the distinction of CRC until the disease has a poor clinical manifestation. Results: Proteomic analysis revealed 119 and 166 proteins for patients in stages I–II and III–IV, correspondingly. Plenty of proteins (44 proteins) reflected conditions of the immune response, lipid metabolism, and response to stress, but only a small portion of them were significant (p < 0.01) for distinguishing stages I–II of CRC. Among them, some cytokines (Clusterin (CLU), C4b-binding protein (C4BP), and CD59 glycoprotein (CD59), etc.) were the most prominent and the lectin pathway was specifically enhanced in patients with CRC. Significant alterations in Inter-alpha-trypsin inhibitor heavy chains (ITIH1, ITIH2, ITIH3, and ITIH4) levels were also observed due to their implication in tumor growth and the malignancy process. Other markers (Alpha-1-acid glycoprotein 2 (ORM2), Alpha-1B-glycoprotein (A1BG), Haptoglobin (HP), and Leucine-rich alpha-2-glycoprotein (LRG1), etc.) were found to create an ambiguous core involved in cancer development but also to exactly promote tumor progression in the early stages. Additionally, we identified post-translational modifications, which according to the literature are associated with the development of colorectal cancer, including kininogen 1 protein (T327-p), alpha-2-HS-glycoprotein (S138-p) and newly identified PTMs, i.e., vitamin D-binding protein (K75-ac and K370-ac) and plasma protease C1 inhibitor (Y294-p), which may also contribute and negatively impact on CRC progression. Conclusions: The contribution of cytokines and proteins of the extracellular matrix is the most significant factor in CRC development in the early stages. This can be concluded since tumor growth is tightly associated with chronic aseptic inflammation and concatenated malignancy related to loss of extracellular matrix stability. Due attention should be paid to Apolipoprotein E (APOE), Apolipoprotein C1 (APOC1), and Apolipoprotein B-100 (APOB) because of their impact on the malfunction of DNA repair and their capability to regulate mTOR and PI3K pathways. The contribution of the observed PTMs is still equivocal, but a significant decrease in the likelihood between modified and native proteins was not detected confidently.
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Hypochlorous acid-mediated modification of proteins and its consequences. Essays Biochem 2019; 64:75-86. [DOI: 10.1042/ebc20190045] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/03/2019] [Accepted: 12/06/2019] [Indexed: 01/06/2023]
Abstract
AbstractMyeloperoxidase (MPO) is a mammalian heme peroxidase released by activated immune cells, which forms chemical oxidants, including hypochlorous acid (HOCl), to kill bacteria and other invading pathogens. In addition to this important role in the innate immune system, there is significant evidence from numerous chronic inflammatory pathologies for the elevated production of HOCl and associated oxidative modification of proteins and damage to host tissue. Proteins are major targets for HOCl in biological systems, owing to their abundance and the high reactivity of several amino acid side-chains with this oxidant. As such, there is significant interest in understanding the molecular mechanisms involved in HOCl-mediated protein damage and defining the consequences of these reactions. Exposure of proteins to HOCl results in a wide range of oxidative modifications and the formation of chlorinated products, which alter protein structure and enzyme activity, and impact the function of biological systems. This review describes the reactivity of HOCl with proteins, including the specific pathways involved in side-chain modification, backbone fragmentation and aggregation, and outlines examples of some of the biological consequences of these reactions, particularly in relation to the development of chronic inflammatory disease.
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Liu H, Luo D, Qiu Y, Huang Y, Chen C, Song X, Gao L, Zhou Y. The Effect of AMBP SNPs, Their Haplotypes, and Gene-Environment Interactions on the Risk of Atherothrombotic Stroke Among the Chinese Population. Genet Test Mol Biomarkers 2019; 23:487-494. [PMID: 31233368 DOI: 10.1089/gtmb.2018.0248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Background/Objectives: Ischemic stroke (IS) is a severe and complex disorder with high morbidity and mortality rates and it has been associated with both environmental and genetic predisposing factors. The purpose of this study was to evaluate the association of the alpha-1-microglobulin/bikunin precursor (AMBP) gene polymorphisms with IS and any possible interactions between specific AMBP alleles and traditional risk factors among a Han Chinese cohort. Materials and Methods: We conducted a candidate gene study designed to characterize nine (9) single nucleotide polymorphisms (SNPs) of the AMBP gene among 195 patients with atherothrombotic stroke (ATS) (a major subtype of IS) and 184 nonstroke controls. Allelic and genotypic frequency differences were evaluated using a logistic regression model. False discovery rate (FDR) correction for multiple comparisons was used. The interactional analyses were performed using the multifactor dimensionality reduction test. Results: We found an association between the rs2567698 CC genotype (odds ratio [OR], 95% confidence interval [CI]: 2.176, 1.159-4.086) and the T allele (OR, 95% CI: 0.654, 0.446-0.960) with risk of ATS in men. However, these associations did not survive FDR correction. In haplotype analyses, the GCCCCCCCC haplotype had a higher frequency (OR, 95% CI: 2.191, 1.048-4.580) in ATS in the ≥45 years of age subgroup, whereas the GCCTCCCCC haplotype decreased the risk for ATS (OR, 95% CI: 0.543, 0.345-0.853) in men. In addition, we also found interactions for ATS risk between SNPs in the AMBP gene and modifiable risk factors for ATS, including: rs11788411 and hypertension in the overall population and women; rs2251680 and hypertension in subjects aged 45 years and older, as well as the interaction among hypertension and the rs2567698 and rs10817564 genotypes in men. Conclusion: Our results show a possible association between AMBP SNP haplotypes and gene-environment interactions with ATS susceptibility in a Han Chinese cohort.
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Affiliation(s)
- Hua Liu
- 1 Department of Neurology, the Third People's Hospital of Chengdu, the Affiliated Hospital of Southwest Jiaotong University, Chengdu, P.R. China.,2 Department of Neurology, Nanchong Central Hospital, Southwest Medical University, Nanchong, P.R. China.,3 Department of Neurology, Yanting County People's Hospital, Yanting, P.R. China
| | - Danyang Luo
- 1 Department of Neurology, the Third People's Hospital of Chengdu, the Affiliated Hospital of Southwest Jiaotong University, Chengdu, P.R. China.,2 Department of Neurology, Nanchong Central Hospital, Southwest Medical University, Nanchong, P.R. China
| | - Ya Qiu
- 4 Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, P.R. China
| | - Yan Huang
- 3 Department of Neurology, Yanting County People's Hospital, Yanting, P.R. China
| | - Cheng Chen
- 5 Department of Neurology, Chengdu Hospital of the Chinese People's Armed Police Forces, Chengdu, P.R. China
| | - Xiaoxiao Song
- 6 Department of Epidemiology and Statistics, School of Public Health, Kunming Medical University, Kunming, P.R. China
| | - Li Gao
- 1 Department of Neurology, the Third People's Hospital of Chengdu, the Affiliated Hospital of Southwest Jiaotong University, Chengdu, P.R. China
| | - Yongmei Zhou
- 1 Department of Neurology, the Third People's Hospital of Chengdu, the Affiliated Hospital of Southwest Jiaotong University, Chengdu, P.R. China
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Vendrame F, Olops L, Saad STO, Costa FF, Fertrin KY. Differences in heme and hemopexin content in lipoproteins from patients with sickle cell disease. J Clin Lipidol 2018; 12:1532-1538. [PMID: 30219641 DOI: 10.1016/j.jacl.2018.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/13/2018] [Accepted: 08/02/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND High blood cholesterol is associated with atherogenesis and endothelial dysfunction. The latter is present in hemolytic diseases, such as sickle cell anemia, whose carriers have hypocholesterolemia and low incidence of coronary artery disease. OBJECTIVE We aimed to characterize cholesterol fractions in patients with sickle cell disease and explore the relationship among lipoproteins, varying degrees of hemolysis, and its biomarkers. METHODS We recruited 37 healthy individuals, 39 with hemoglobin SC disease, and 40 with sickle cell anemia and quantified cholesterol fractions, heme resulting from hemoglobin breakdown, and its main scavenger protein hemopexin. RESULTS Hypocholesterolemia was most significant in patients with sickle cell anemia, and cholesterol levels correlated positively with hemopexin. Nevertheless, patients still had higher relative low-density lipoprotein (LDL) oxidation than healthy subjects. Analysis of lipoproteins isolated by density ultracentrifugation showed that the LDL fraction contained higher concentrations of heme than the high-density lipoprotein (HDL) fraction, whereas HDL contained more hemopexin than LDL, albeit greatly reduced in patients. CONCLUSION Our findings show that the abnormally low lipoprotein levels in sickle cell anemia correlate with hemolysis markers, particularly with hemopexin concentrations, along with significant reduction of this heme scavenger in HDL fractions. This may suggest an important role for HDL in the defense against heme-induced endothelial dysfunction in hemolytic diseases.
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Affiliation(s)
- Felipe Vendrame
- Hematology and Hemotherapy Center, University of Campinas-UNICAMP, Campinas, Brazil
| | - Leticia Olops
- Hematology and Hemotherapy Center, University of Campinas-UNICAMP, Campinas, Brazil
| | | | | | - Kleber Yotsumoto Fertrin
- Hematology and Hemotherapy Center, University of Campinas-UNICAMP, Campinas, Brazil; Division of Hematology, University of Washington, Seattle, WA, USA.
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Andersen CBF, Stødkilde K, Sæderup KL, Kuhlee A, Raunser S, Graversen JH, Moestrup SK. Haptoglobin. Antioxid Redox Signal 2017; 26:814-831. [PMID: 27650279 DOI: 10.1089/ars.2016.6793] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Haptoglobin (Hp) is an abundant human plasma protein that tightly captures hemoglobin (Hb) during hemolysis. The Hb-Hp complex formation reduces the oxidative properties of heme/Hb and promotes recognition by the macrophage scavenger receptor CD163. This leads to Hb-Hp breakdown and heme catabolism by heme oxygenase and biliverdin reductase. Gene duplications of a part of or the entire Hp gene in the primate evolution have led to variant Hp gene products that collectively may be designated "the haptoglobins (Hps)" as they all bind Hb. These variant products include the human-specific multimeric Hp phenotypes in individuals, which are hetero- or homozygous for an Hp2 gene allele. The Hp-related protein (Hpr) is another Hp duplication product in humans and other primates. Alternative functions of the variant Hps are indicated by numerous reports on association between Hp phenotypes and disease as well as the elucidation of a specific role of Hpr in the innate immune defense. Recent Advances: Recent functional and structural information on Hp and receptor systems for Hb removal now provides insight on how Hp carries out essential functions such as the Hb detoxification/removal, and how Hpr, by acting as an Hp-lookalike, can sneak a lethal toxin into trypanosome parasites that cause mammalian sleeping sickness. Critical Issues and Future Directions: The new structural insight may facilitate ongoing attempts of developing Hp derivatives for prevention of Hb toxicity in hemolytic diseases such as sickle cell disease and other hemoglobinopathies. Furthermore, the new structural knowledge may help identifying yet unknown functions based on other disease-relevant biological interactions involving Hps. Antioxid. Redox Signal. 26, 814-831.
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Affiliation(s)
| | | | - Kirstine Lindhardt Sæderup
- 2 Cancer and Inflammation, Department of Molecular Medicine, University of Southern Denmark , Odense C, Denmark
| | - Anne Kuhlee
- 3 Department of Structural Biochemistry, Max-Planck Institute of Molecular Physiology , Dortmund, Germany
| | - Stefan Raunser
- 3 Department of Structural Biochemistry, Max-Planck Institute of Molecular Physiology , Dortmund, Germany
| | - Jonas H Graversen
- 2 Cancer and Inflammation, Department of Molecular Medicine, University of Southern Denmark , Odense C, Denmark
| | - Søren Kragh Moestrup
- 1 Department of Biomedicine, University of Aarhus , Aarhus C, Denmark .,2 Cancer and Inflammation, Department of Molecular Medicine, University of Southern Denmark , Odense C, Denmark .,4 Department of Clinical Biochemistry and Pharmacology, Odense University Hospital , Odense C, Denmark
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Zhou W, Yuan WF, Chen C, Wang SM, Liang SW. Study on material base and action mechanism of compound Danshen dripping pills for treatment of atherosclerosis based on modularity analysis. JOURNAL OF ETHNOPHARMACOLOGY 2016; 193:36-44. [PMID: 27396350 DOI: 10.1016/j.jep.2016.07.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 06/20/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicine (TCM) has been widely used in China and its surrounding countries in clinical treatments for centuries-long time. However, due to the complexity of TCM constituents, both action mechanism and material base of TCM remain nearly unknown. AIM OF THE STUDY The present study was designed to uncover the action mechanism and material base of TCM in a low-cost manner. MATERIALS AND METHODS Compound Danshen dripping pills (DSP) is a widely used TCM for treatment of atherosclerosis, and was researched here to demonstrate the effectiveness of our method. We constructed a heterogeneous network for DSP, identified the significant network module, and analyzed the primary pharmacological units by performing GO and pathways enrichment analysis. RESULTS Two significant network modules were identified from the heterogeneous network of DSP, and three compounds out of four hub nodes in the network were found to intervene in the process of atherosclerosis. Moreover, 13 out of 20 enriched pathways that were ranked in top 10 corresponding to both the two pharmacological units were found to be involved in the process of atherosclerosis. CONCLUSIONS Quercetin, luteolin and apigenin may be the main active compounds which modulate the signaling pathways, such as metabolism of xenobiotics by cytochrome P450, retinol metabolism, etc. The present method helps reveal the action mechanism and material base of DSP for treatment of atherosclerosis.
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Affiliation(s)
- Wei Zhou
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
| | - Wen-Feng Yuan
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
| | - Chao Chen
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China.
| | - Shu-Mei Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
| | - Sheng-Wang Liang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
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Roumenina LT, Rayes J, Lacroix-Desmazes S, Dimitrov JD. Heme: Modulator of Plasma Systems in Hemolytic Diseases. Trends Mol Med 2016; 22:200-213. [PMID: 26875449 DOI: 10.1016/j.molmed.2016.01.004] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/11/2016] [Accepted: 01/14/2016] [Indexed: 12/15/2022]
Abstract
Hemolytic diseases such as sickle-cell disease, β-thalassemia, malaria, and autoimmune hemolytic anemia continue to present serious clinical hurdles. In these diseases, lysis of erythrocytes causes the release of hemoglobin and heme into plasma. Extracellular heme has strong proinflammatory potential and activates immune cells and endothelium, thus contributing to disease pathogenesis. Recent studies have revealed that heme can interfere with the function of plasma effector systems such as the coagulation and complement cascades, in addition to the activity of immunoglobulins. Any perturbation in such functions may have severe pathological consequences. In this review we analyze heme interactions with coagulation, complement, and immunoglobulins. Deciphering such interactions to better understand the complex pathogenesis of hemolytic diseases is pivotal.
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Affiliation(s)
- Lubka T Roumenina
- Sorbonne Universités, Université Pierre et Marie Curie (UPMC) Université Paris 06, Unité Mixte de Recherche en Santé (UMRS 1138), Centre de Recherche des Cordeliers, 75006 Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 1138, Centre de Recherche des Cordeliers, 75006 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Centre de Recherche des Cordeliers, F75006 Paris, France.
| | - Julie Rayes
- Centre for Cardiovascular Sciences, Institute for Biomedical Research, University of Birmingham, Birmingham B15 2TT, UK
| | - Sébastien Lacroix-Desmazes
- Sorbonne Universités, Université Pierre et Marie Curie (UPMC) Université Paris 06, Unité Mixte de Recherche en Santé (UMRS 1138), Centre de Recherche des Cordeliers, 75006 Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 1138, Centre de Recherche des Cordeliers, 75006 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Centre de Recherche des Cordeliers, F75006 Paris, France
| | - Jordan D Dimitrov
- Sorbonne Universités, Université Pierre et Marie Curie (UPMC) Université Paris 06, Unité Mixte de Recherche en Santé (UMRS 1138), Centre de Recherche des Cordeliers, 75006 Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 1138, Centre de Recherche des Cordeliers, 75006 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Centre de Recherche des Cordeliers, F75006 Paris, France.
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