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Lin W, Chen H, Chen X, Guo C. The Roles of Neutrophil-Derived Myeloperoxidase (MPO) in Diseases: The New Progress. Antioxidants (Basel) 2024; 13:132. [PMID: 38275657 PMCID: PMC10812636 DOI: 10.3390/antiox13010132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/06/2024] [Accepted: 01/12/2024] [Indexed: 01/27/2024] Open
Abstract
Myeloperoxidase (MPO) is a heme-containing peroxidase, mainly expressed in neutrophils and, to a lesser extent, in monocytes. MPO is known to have a broad bactericidal ability via catalyzing the reaction of Cl- with H2O2 to produce a strong oxidant, hypochlorous acid (HOCl). However, the overproduction of MPO-derived oxidants has drawn attention to its detrimental role, especially in diseases characterized by acute or chronic inflammation. Broadly speaking, MPO and its derived oxidants are involved in the pathological processes of diseases mainly through the oxidation of biomolecules, which promotes inflammation and oxidative stress. Meanwhile, some researchers found that MPO deficiency or using MPO inhibitors could attenuate inflammation and tissue injuries. Taken together, MPO might be a promising target for both prognostic and therapeutic interventions. Therefore, understanding the role of MPO in the progress of various diseases is of great value. This review provides a comprehensive analysis of the diverse roles of MPO in the progression of several diseases, including cardiovascular diseases (CVDs), neurodegenerative diseases, cancers, renal diseases, and lung diseases (including COVID-19). This information serves as a valuable reference for subsequent mechanistic research and drug development.
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Affiliation(s)
- Wei Lin
- Clinical Pharmacology Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
| | - Huili Chen
- Center of System Pharmacology and Pharmacometrics, College of Pharmacy, University of Florida, Gainesville, FL 32611, USA;
| | - Xijing Chen
- Clinical Pharmacology Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
| | - Chaorui Guo
- Clinical Pharmacology Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
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Petrič B, Redenšek Trampuž S, Dolžan V, Gregorič Kramberger M, Trošt M, Maraković N, Goličnik M, Bavec A. Investigation of Paraoxonase-1 Genotype and Enzyme-Kinetic Parameters in the Context of Cognitive Impairment in Parkinson's Disease. Antioxidants (Basel) 2023; 12:antiox12020399. [PMID: 36829958 PMCID: PMC9952446 DOI: 10.3390/antiox12020399] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/01/2023] [Accepted: 02/04/2023] [Indexed: 02/10/2023] Open
Abstract
Cognitive impairment is a common non-motor symptom of Parkinson's disease (PD), which often progresses to PD dementia. PD patients with and without dementia may differ in certain biochemical parameters, which could thus be used as biomarkers for PD dementia. The enzyme paraoxonase 1 (PON1) has previously been investigated as a potential biomarker in the context of other types of dementia. In a cohort of PD patients, we compared a group of 89 patients with cognitive impairment with a group of 118 patients with normal cognition. We determined the kinetic parameters Km and Vmax for PON1 for the reaction with dihydrocoumarin and the genotype of four single nucleotide polymorphisms in PON1. We found that no genotype or kinetic parameter correlated significantly with cognitive impairment in PD patients. However, we observed associations between PON1 rs662 and PON1 Km (p < 10-10), between PON1 rs662 and PON1 Vmax (p = 9.33 × 10-7), and between PON1 rs705379 and PON1 Vmax (p = 2.21 × 10-10). The present study is novel in three main aspects. (1) It is the first study to investigate associations between the PON1 genotype and enzyme kinetics in a large number of subjects. (2) It is the first study to report kinetic parameters of PON1 in a large number of subjects and to use time-concentration progress curves instead of initial velocities to determine Km and Vmax in a clinical context. (3) It is also the first study to calculate enzyme-kinetic parameters in a clinical context with a new algorithm for data point removal from progress curves, dubbed iFIT. Although our results suggest that in the context of PD, there is no clinically useful correlation between cognitive status on the one hand and PON1 genetic and enzyme-kinetic parameters on the other hand, this should not discourage future investigation into PON1's potential associations with other types of dementia.
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Affiliation(s)
- Boštjan Petrič
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Sara Redenšek Trampuž
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Vita Dolžan
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Milica Gregorič Kramberger
- Department of Neurology, University Medical Center, 1000 Ljubljana, Slovenia
- Chair of Neurology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
- Karolinska Institutet, Department of Neurobiology, Care Sciences and Society (NVS), Division of Clinical Geriatrics, 141 83 Huddinge, Sweden
| | - Maja Trošt
- Department of Neurology, University Medical Center, 1000 Ljubljana, Slovenia
- Chair of Neurology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Nikola Maraković
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
- Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia
| | - Marko Goličnik
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Aljoša Bavec
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
- Correspondence:
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Kuang Y, Wang Y, Cao X, Peng C, Gao H. New prognostic factors and scoring system for patients with acute myeloid leukemia. Oncol Lett 2021; 22:823. [PMID: 34691250 PMCID: PMC8527825 DOI: 10.3892/ol.2021.13084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
Acute myeloid leukemia (AML) is a malignant disease originating from myeloid hematopoietic stem or progenitor cells. It is important to identify molecules associated with the prognosis of AML and conduct an individual risk assessment for different patients. In the present study, the RNA expression profile of 132 patients with AML and 337 healthy individuals were downloaded from the University of California Santa Cruz Xena and the Genotype-Tissue Expression project databases. Differentially expressed mRNA (DEmRNA) transcripts between normal blood and AML blood were identified. Among these, prognosis-associated signature mRNA molecules were screened using univariate Cox and least absolute shrinkage and selection operator regression. A total of four genes, namely, family with sequence similarity 124 member B (FAM124B), 4-hydroxyphenylpyruvate dioxygenase-like protein (HPDL), myeloperoxidase (MPO) and purinergic receptor P2Y1 (P2RY1), were identified using multivariate Cox regression analysis and were used to construct a prognostic scoring system. Moreover, the expression levels of HPDL and MPO were higher in the samples with high immunity scores and estimate scores (sum of stromal score and immune score), compared with those with low scores. Reverse transcription-quantitative PCR and western blot analysis were used to confirm the upregulation of the four candidate genes in AML cell lines as well as in clinical AML samples. In summary, the present study identified a novel mRNA-based prognostic risk scoring system for patients with AML. The four genes used in this scoring system may also play an important role in AML.
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Affiliation(s)
- Ye Kuang
- Medical Laboratory, Yan'An Hospital, Kunming, Yunnan 650000, P.R. China
| | - Yang Wang
- Medical Laboratory, Yan'An Hospital, Kunming, Yunnan 650000, P.R. China
| | - Xianghong Cao
- Medical Laboratory, Yan'An Hospital, Kunming, Yunnan 650000, P.R. China
| | - Chuanmei Peng
- Medical Laboratory, Yan'An Hospital, Kunming, Yunnan 650000, P.R. China
| | - Hui Gao
- Medical Laboratory, Yan'An Hospital, Kunming, Yunnan 650000, P.R. China
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Kargapolova Y, Geißen S, Zheng R, Baldus S, Winkels H, Adam M. The Enzymatic and Non-Enzymatic Function of Myeloperoxidase (MPO) in Inflammatory Communication. Antioxidants (Basel) 2021; 10:antiox10040562. [PMID: 33916434 PMCID: PMC8066882 DOI: 10.3390/antiox10040562] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 12/14/2022] Open
Abstract
Myeloperoxidase is a signature enzyme of polymorphonuclear neutrophils in mice and humans. Being a component of circulating white blood cells, myeloperoxidase plays multiple roles in various organs and tissues and facilitates their crosstalk. Here, we describe the current knowledge on the tissue- and lineage-specific expression of myeloperoxidase, its well-studied enzymatic activity and incoherently understood non-enzymatic role in various cell types and tissues. Further, we elaborate on Myeloperoxidase (MPO) in the complex context of cardiovascular disease, innate and autoimmune response, development and progression of cancer and neurodegenerative diseases.
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Myeloperoxidase targets oxidative host attacks to Salmonella and prevents collateral tissue damage. Nat Microbiol 2017; 2:16268. [PMID: 28112722 DOI: 10.1038/nmicrobiol.2016.268] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 12/13/2016] [Indexed: 02/07/2023]
Abstract
Host control of infections crucially depends on the capability to kill pathogens with reactive oxygen species (ROS). However, these toxic molecules can also readily damage host components and cause severe immunopathology. Here, we show that neutrophils use their most abundant granule protein, myeloperoxidase, to target ROS specifically to pathogens while minimizing collateral tissue damage. A computational model predicted that myeloperoxidase efficiently scavenges diffusible H2O2 at the surface of phagosomal Salmonella and converts it into highly reactive HOCl (bleach), which rapidly damages biomolecules within a radius of less than 0.1 μm. Myeloperoxidase-deficient neutrophils were predicted to accumulate large quantities of H2O2 that still effectively kill Salmonella, but most H2O2 would leak from the phagosome. Salmonella stimulation of neutrophils from normal and myeloperoxidase-deficient human donors experimentally confirmed an inverse relationship between myeloperoxidase activity and extracellular H2O2 release. Myeloperoxidase-deficient mice infected with Salmonella had elevated hydrogen peroxide tissue levels and exacerbated oxidative damage of host lipids and DNA, despite almost normal Salmonella control. These data show that myeloperoxidase has a major function in mitigating collateral tissue damage during antimicrobial oxidative bursts, by converting diffusible long-lived H2O2 into highly reactive, microbicidal and locally confined HOCl at pathogen surfaces.
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Argani H, Ghorbanihaghjo A, Vatankhahan H, Rashtchizadeh N, Raeisi S, Ilghami H. The effect of red grape seed extract on serum paraoxonase activity in patients with mild to moderate hyperlipidemia. SAO PAULO MED J 2016; 134:234-9. [PMID: 27191247 PMCID: PMC10496609 DOI: 10.1590/1516-3180.2015.01702312] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 08/22/2015] [Accepted: 12/23/2015] [Indexed: 12/21/2022] Open
Abstract
CONTEXT AND OBJECTIVE Red grape seed extract (RGSE) contains oligomeric proanthocyanidin complexes as a class of flavonoids. These compounds are potent antioxidants and exert many health-promoting effects. This study aimed to determine the effects of RGSE on serum levels of triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), apolipoprotein AI (apo-AI) levels and paraoxonase (PON) activity in patients with mild to moderate hyperlipidemia (MMH). DESIGN AND SETTINGS A randomized double-blind placebo-controlled clinical trial was conducted at Shahid-Modarres Hospital (Tehran, Iran) and Tabriz University of Medical Sciences. Seventy MMH patients were randomly assigned to receive treatment (200 mg/day of RGSE) or placebo for eight weeks. RESULTS Significant elevation in serum levels of apo-AI (P = 0.001), HDL-C (P = 0.001) and PON activity (P = 0.001) and marked decreases in concentrations of TC (P = 0.015), TG (P = 0.011) and LDL-C (P = 0.014) were found in the cases. PON activity was significantly correlated with apo-AI (r = 0.270; P < 0.01) and HDL-C (r = 0.45; P < 0.001). Significant differences between the RGSE and control groups (before and after treatment) for TC (P = 0.001), TG (P = 0.001), PON (P = 0.03), apo-AI (P = 0.001) and LDL-C (P = 0.002) were seen. CONCLUSION It is possible that RGSE increases PON activity mostly through increasing HDL-C and apo-AI levels in MMH patients. It may thus have potential beneficial effects in preventing oxidative stress and atherosclerosis in these patients.
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Affiliation(s)
- Hassan Argani
- MD. Professor, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Amir Ghorbanihaghjo
- MSc, PhD. Professor, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Hamid Vatankhahan
- MSc. Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Nadereh Rashtchizadeh
- MSc, PhD. Professor, Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Sina Raeisi
- MSc. Doctoral Student, Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Hadi Ilghami
- MSc. Doctoral Student, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Sayın Kocakap DB, Doğru MT, Şimşek V, Çabuk F, Yıldırım N, Çelik Y, Alyılmaz Bekmez S, Erdem S. The association of paraoxonase 1 gene L55M polymorphism with the extent and severity of coronary artery disease in the Turkish population and its dependence on gender. Anatol J Cardiol 2015; 16:175-82. [PMID: 26467378 PMCID: PMC5336803 DOI: 10.5152/akd.2015.6010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Coronary artery disease (CAD) is a common, complex, and progressive disorder characterized by the accumulation of lipids and fibrous elements in the arteries. It is one of the leading causes of death in industrialized nations. Oxidative modification of low-density lipoprotein (LDL) in the arterial wall plays an important role in the initiation and progression of atherosclerosis. Paraoxonase1 (PON1) is involved in lipid metabolism and is believed to protect LDL oxidation. In our study, we aimed to clarify the relationship between PON1 gene L55M polymorphism and the extent and severity of CAD. METHODS In total, 114 patients (54 males, mean age: 56.7 ± 12.0 years; 60 females, mean age: 55.7 ± 13.2 years) with stable angina or angina equivalent symptoms were enrolled in this prospective study. Cardiological evaluation was performed with electrocardiogram and transthoracic echocardiogram. The presence of hypertension, dyslipidemia, diabetes, and smoking status were ascertained. The patients were grouped according to their Gensini scores and gender. Genetic analysis of the PON1 gene L55M polymorphism was performed by polymerase chain reaction-restriction fragment length polymorphism. RESULTS We determined that the LL genotype was more prevalent in patients with Gensini score higher than or equal to 20 (p=0.026) and that this correlated with severe atherosclerotic coronary artery lesions in both gender groups, reaching a statistical significance in the female subjects (p=0.038). CONCLUSION It was thought that the PON1 gene L55M polymorphism plays a significant role in CAD progression, especially in females.
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8
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Wu D, Chen X, Dong C, Liu Q, Yang Y, He C, Wang J, Sun M, Wu Y. Association of single nucleotide polymorphisms in MPO and COX genes with oral lichen planus. Int J Immunogenet 2015; 42:161-7. [PMID: 25823564 DOI: 10.1111/iji.12193] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 02/08/2015] [Accepted: 03/04/2015] [Indexed: 11/28/2022]
Abstract
Oral lichen planus (OLP) is an intractable, chronic inflammatory disorder, and its pathogenesis is still largely unknown. Some literatures supported that genes involved in both oxidative stress and prostaglandin metabolism play an important role in the process of inflammation. To explore their association with OLP, we investigated four single nucleotide polymorphisms (SNPs) from myeloperoxidase (MPO) and cyclooxygenase (COX) genes in 475 Chinese individuals (242 case and 233 controls) by MassArray. Although the genotype distributions had no significant differences between the patients and controls, we found that in different gender, rs2243828 from MPO displayed the statistically significant variance genotype frequencies between patients and controls (P = 0.018 in females, P = 0.035 in males). Moreover, for the major allele recessive model, this SNP also showed a significant difference between case and control groups in males (P = 0.015). In this study, we first observed significant association with MPO polymorphism and OLP risk in different gender groups in Chinese, suggesting MPO polymorphism is a gender-specific risk factor of OLP probably by influencing sex hormone-sensitive elements to regulate inflammatory gene expression networks, and we further revealed that oxidative stress was actually involved in the pathogenesis of this disease. Moreover, these findings inspire us some constructive solutions to the treatment of this disease.
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Affiliation(s)
- D Wu
- Center for DNA Typing, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - X Chen
- Center for DNA Typing, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - C Dong
- Hematology Department, Xianyang Rainbow Hospital, Xi'an, Shaanxi, China
| | - Q Liu
- Periodontal Mucosal Department, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y Yang
- Center for DNA Typing, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - C He
- Center for DNA Typing, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - J Wang
- Department of Operative Dentistry & Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - M Sun
- Center for DNA Typing, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y Wu
- Center for DNA Typing, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, Shaanxi, China
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Association of myeloperoxidase polymorphism (G463A) with cervix cancer. Mol Cell Biochem 2015; 404:1-4. [DOI: 10.1007/s11010-015-2359-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 02/14/2015] [Indexed: 10/24/2022]
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Gugliucci A, Menini T. Paraoxonase 1 and HDL maturation. Clin Chim Acta 2014; 439:5-13. [PMID: 25261854 DOI: 10.1016/j.cca.2014.09.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 09/16/2014] [Accepted: 09/19/2014] [Indexed: 01/25/2023]
Abstract
Understanding the kinetics and function of paraoxonase 1 (PON1) is becoming an important issue in atherosclerosis. Low PON1 activity has been consistently linked with an increased risk of major cardiovascular events in the setting of secondary prevention of coronary artery disease. Recent studies have shown that there is a specific interaction of myeloperoxidase (MPO)-apoAI-PON1 on HDL surface that seems to be germane to atherogenesis. MPO specifically inhibits PON1 and PON1 mitigates MPO effects. Surprisingly, very little is known about the routes by which PON1 gets integrated into HDL or its fate during HDL remodeling in the intravascular space. We have developed a method that assesses PON1 activity in the individual HDL subclasses with the aid of which we have shown that PON1 is present across the HDL particle range and preferentially in HDL3, confirming data from ultracentrifugation (UC) studies. Upon HDL maturation ex vivo PON1 is activated and it shows a flux to both smaller and larger HDL particles as well as to VLDL and sdLDL. At the same time apoE, AI and AII are shifted across particle sizes. PON1 activation and flux across HDL particles are blocked by CETP and LCAT inhibitors. In a group of particles with such a complex biology as HDL, knowledge of the interaction between apo-lipoproteins, lipids and enzymes is key for an increased understanding of the yet multiple unknown features of its function. Solving the HDL paradox will necessitate the development of techniques to explore HDL function that are practical and well adapted to clinical studies and eventually become useful in patient monitoring. The confluence of proteomic, functional studies, HDL subclasses, PON1 assays and zymogram will yield data to draw a more elaborate and comprehensive picture of the function of HDL. It must be noted that all these studies are static and conducted in the fasting state. The crucial phase will be achieved when human kinetic studies (both in the fasting and post-prandial states) on HDL-PON1, apoA-I and lipid fate in the circulation are carried out.
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Affiliation(s)
- Alejandro Gugliucci
- Glycation, Oxidation and Disease Laboratory, Touro University California College of Osteopathic Medicine, Vallejo, CA, USA.
| | - Teresita Menini
- Glycation, Oxidation and Disease Laboratory, Touro University California College of Osteopathic Medicine, Vallejo, CA, USA
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Correlation between genetic polymorphisms within IL-1B and TLR4 genes and cancer risk in a Russian population: a case-control study. Tumour Biol 2014; 35:4821-30. [DOI: 10.1007/s13277-014-1633-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 01/07/2014] [Indexed: 01/14/2023] Open
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Gene–environment interactions in heavy metal and pesticide carcinogenesis. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2014; 760:1-9. [DOI: 10.1016/j.mrgentox.2013.11.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 11/19/2013] [Accepted: 11/25/2013] [Indexed: 01/05/2023]
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Akkız H, Kuran S, Akgöllü E, Üsküdar O, Bekar A, Bayram S, Yıldırım S, Ülger Y, Kaya BY, Şansal M, Çınar E. Effect of PON1 gene polymorphisms in Turkish patients with hepatocellular carcinoma. Meta Gene 2013; 1:93-101. [PMID: 25606379 PMCID: PMC4205027 DOI: 10.1016/j.mgene.2013.09.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 09/11/2013] [Indexed: 12/29/2022] Open
Abstract
Background: Reactive oxygen species (ROS) can oxidize biological molecules that mediate carcinogenesis by causing metabolic malfunction and damage to DNA. Human serum paraoxonases (PON1, PON2 and PON3) play a role in antioxidant defense and protect the cell against ROS. PON1 polymorphisms Q192R and L55M have been shown to be associated with several human cancers, but their association with hepatocellular carcinoma (HCC) has yet to be investigated. Methods: We performed genotyping analysis using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay in a hospital-based case–control study of 217 confirmed HCC patients and 217 age-, gender-, smoking- and alcohol consumption-matched cancer-free controls in Turkish population. Results: Q192R and L55M polymorphisms were in significant linkage disequilibrium (LD) (D′ = 0.77). However, allele, genotype and haplotype analysis showed no significant differences between the risks of HCC and PON1 polymorphisms. Moreover, no significant differences were found between clinical findings, clinicopathological features and sex in comparison with the PON1 genotypes in HCC group. Conclusion: Our results suggest for the first time that neither the Q192R polymorphism nor the L55M polymorphism has relationship with the risk of developing HCC. Further independent studies are required to clarify the possible role of PON1 gene Q192R and L55M polymorphisms on the risk of developing HCC in a larger series and also in patients of different ethnic origins. Human serum paraoxonases (PON) play a key role to protect the cell against ROS. We analyzed for the first time the relationship between PON1 polymorphisms and HCC. No significant differences between HCC risk and PON1 (L55M, Q192R) polymorphisms
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Affiliation(s)
- Hikmet Akkız
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Sedef Kuran
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Ersin Akgöllü
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Oğuz Üsküdar
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Aynur Bekar
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Süleyman Bayram
- Adıyaman University, Adıyaman School of Health, Department of Nursing, 02040 Adıyaman, Turkey
| | - Selçuk Yıldırım
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Yakup Ülger
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Berrin Yalınbaş Kaya
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Mahmut Şansal
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, 01330 Adana, Turkey
| | - Ercan Çınar
- Batman University, Arts & Science Faculty, Chemistry Department (Biochemistry Division), Batman, Turkey
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Li J, Fu Y, Zhao B, Xiao Y, Chen R. Myeloperoxidase G463A polymorphism and risk of lung cancer. Tumour Biol 2013; 35:821-9. [DOI: 10.1007/s13277-013-1113-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 08/13/2013] [Indexed: 10/26/2022] Open
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15
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Association between MPO 463G>A polymorphism and risk of lung cancer: a meta-analysis. Tumour Biol 2013; 34:3449-55. [PMID: 23943394 DOI: 10.1007/s13277-013-0921-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 06/11/2013] [Indexed: 10/26/2022] Open
Abstract
There is a possible association between myeloperoxidase (MPO) 463G>A polymorphism and risk of lung cancer, but previous studies report conflicting results. We performed a meta-analysis of available molecular epidemiologic studies to comprehensively assess the association between MPO 463G>A polymorphism and risk of lung cancer. A systemic literature search was performed in Pubmed, Embase, and Wanfang databases for molecular epidemiologic studies on the association MPO 463G>A polymorphism and risk of lung cancer on March 16, 2013. The pooled odds ratios (ORs) with their 95% confidence interval (95% CI) were calculated to assess the strength of the association. Twenty-six individual case-control studies with a total of 18,433 subjects (7,752 cases and 10,681 controls) were finally included into the meta-analysis. Overall, MPO 463G>A polymorphism was significantly associated with decreased risk of lung cancer under two main genetic comparison models (for A versus G, OR = 0.91, 95 % CI 0.83-0.99, P = 0.035; for AG/AA versus GG, OR = 0.90, 95% CI 0.81-0.99, P = 0.029). Meta-analysis of studies with high quality also showed that MPO 463G>A polymorphism was significantly associated with decreased risk of lung cancer under two main genetic comparison models (for A versus G, OR = 0.91, 95% CI 0.83-0.99, P = 0.035; for AG/AA versus GG, OR = 0.90, 95% CI 0.80-0.99, P = 0.048). Subgroup analysis by ethnicity further showed that there was a significant association between MPO 463G>A polymorphism and decreased risk of lung cancer in Caucasians but not in Asians. The meta-analysis suggests that MPO 463G>A polymorphism is associated with decreased risk of lung cancer, especially in Caucasians.
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Castillo-Tong DC, Pils D, Heinze G, Braicu I, Sehouli J, Reinthaller A, Schuster E, Wolf A, Watrowski R, Maki RA, Zeillinger R, Reynolds WF. Association of myeloperoxidase with ovarian cancer. Tumour Biol 2013; 35:141-8. [PMID: 23893381 DOI: 10.1007/s13277-013-1017-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 07/11/2013] [Indexed: 01/15/2023] Open
Abstract
Myeloperoxidase (MPO) is an oxidant generating enzyme normally restricted to myeloid cells, however aberrant MPO expression has been found to occur in non-myeloid cells in some disease states. The functional -463GA promoter polymorphism alters MPO expression levels. The -463G is within an SP1 binding site and is associated with higher gene expression. The G allele is most frequent with ~62% of European populations being GG homozygotes. The GA polymorphism has been associated with risk or survival in a variety of cancers including lung and breast cancer. In this study we determined the frequency of the -463G/A polymorphism in 230 ovarian cancer patients, 75 patients with borderline ovarian tumors, and 299 healthy controls. The GG genotype was found to be overrepresented in patients with early stage ovarian cancer (83.3% GG, p = 0.008) as compared to healthy controls (62% GG), suggesting that MPO oxidants may increase risk. Immunohistochemical analysis revealed MPO expression in a subset of columnar ovarian epithelial carcinoma cells in early stage carcinomas.
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Affiliation(s)
- Dan Cacsire Castillo-Tong
- Department of Obstetrics and Gynaecology, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
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