1
|
Kunachowicz D, Ściskalska M, Kepinska M. Modulatory Effect of Lifestyle-Related, Environmental and Genetic Factors on Paraoxonase-1 Activity: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2813. [PMID: 36833509 PMCID: PMC9957543 DOI: 10.3390/ijerph20042813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Paraoxonase-1 (PON1) is a calcium-dependent, HDL-bound serum hydrolase active toward a wide variety of substrates. PON1 displays three types of activities, among which lactonase, paraoxonase, arylesterase and phosphotriesterase can be distinguished. Not only is this enzyme a major organophosphate compound detoxifier, but it is also an important constituent of the cellular antioxidant system and has anti-inflammatory and antiatherogenic functions. The concentration and activity of PON1 is highly variable among individuals, and these differences can be both of genetic origin and be a subject of epigenetic regulation. Owing to the fact that, in recent decades, the exposure of humans to an increasing number of different xenobiotics has been continuously rising, the issues concerning the role and activity of PON1 shall be reconsidered with particular attention to growing pharmaceuticals intake, dietary habits and environmental awareness. In the following manuscript, the current state of knowledge concerning the influence of certain modifiable and unmodifiable factors, including smoking, alcohol intake, gender, age and genotype variation on PON1 activity, along with pathways through which these could interfere with the enzyme's protective functions, is presented and discussed. Since exposure to certain xenobiotics plays a key role in PON1 activity, the influence of organophosphates, heavy metals and several pharmaceutical agents is also specified.
Collapse
Affiliation(s)
| | | | - Marta Kepinska
- Department of Pharmaceutical Biochemistry, Division of Biomedical and Environmental Sciences, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50–556 Wrocław, Poland
| |
Collapse
|
2
|
Paraoxonase 1 hydrolysis of EPA-derived lactone impairs endothelial-mediated vasodilation. Prostaglandins Other Lipid Mediat 2022; 162:106665. [PMID: 35817276 DOI: 10.1016/j.prostaglandins.2022.106665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/26/2022] [Accepted: 07/07/2022] [Indexed: 11/20/2022]
Abstract
Human serum paraoxonase-1 (PON1) is a lactonase that plays a significant role in anti-atherosclerotic high-density lipoprotein (HDL) activity. PON1 is also localized in endothelial cell membranes, where it is enzymatically active and regulates endothelial signals. PON1 has a high specificity for lipophilic lactones and has been shown to hydrolyze and regulate lactone lipid mediators derived from arachidonic polyunsaturated fatty acids (PUFA). Previously, we showed that an arachidonic acid lactone metabolite (AA-L) dose-dependently dilates PON1 gene deletion (PON1KO) mouse mesenteric arteries significantly more than wild-type arteries. In contrast, preincubation with HDL or rePON1 reduced AA-L-dependent vasodilation. Recently we showed that an additional δ-lactone metabolite derived from the eicosapentaenoic acid lactone, 5,6-δ-DiHETE lactone (EPA-L) reduced blood pressure by dilating microvessels of hypertensive rats. However, whether PON1 regulates the activity of the EPA-L lipid mediator is unknown. AIM To demonstrate that PON1 hydrolyzes EPA-L and to reveal the effect of this hydrolysis on endothelial-dependent vascular dilation. METHODS AND RESULTS In vascular reactivity experiments, EPA-L dose-dependently dilated PON1KO mouse mesenteric arteries significantly more than wild-type mesenteric arteries. This dilation was not affected by nitric oxide inhibition. PON1 impaired the cellular calcium increase mediated by EPA-L in endothelial cells, though this impairment decreased with PON1 internalization to the cell. CONCLUSION These findings support that PUFA-lactones are physiological substrates of PON1, and that PON1 activity in the endothelial membrane affects the dilation of microvessels that is induced by these endothelial-derived hyperpolarizing PUFA-lactones.
Collapse
|
3
|
Slutsky Smith EA, Khatib S, Szuchman-Sapir A. Fishing for lipid lactones using selective reaction and characteristic fragmentation pattern. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1197:123201. [PMID: 35306351 DOI: 10.1016/j.jchromb.2022.123201] [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: 08/16/2021] [Revised: 02/15/2022] [Accepted: 02/26/2022] [Indexed: 10/18/2022]
Abstract
Extensive research has been invested in developing sensitive methods to identify lipid mediators (LMs) from multiple biological matrices. Previous studies point to the existence of a potential family of lactone-containing metabolites generated from eicosanoid families, isoprostanes, and prostanoid-like compounds that may function as LMs. However, targeted lipidomic studies do not routinely include lactone-containing lipids due to their low ionizability and instability under some common sample preparation conditions. Thus, the discovery of lactone-containing LM is limited. Herein we describe a method for selective identification of lipid lactones from within biological matrices. This method is based on a selective reaction of lactones with 1-(3-aminopropyl)imidazole, followed by cation exchange solid phase extraction and the identification of characteristic fragmentation patterns unique to reaction products of lactones in LC/MS/MS. NMR and LC/MS results indicated that saturated and unsaturated aliphatic ɣ and δ lactone model compounds mixed with human serum were successfully detected. MS/MS analyses of the reaction products revealed a unique pattern for the lactones, resulting from common neutral losses and fragmentation. When applied to esters and free fatty acids, some reaction products were observed. However, these reaction products' MS/MS fragmentation did not match the specific fragmentation of the lactones' reaction products. Confirming that lactones can be detected in a highly selective manner from within complex biological matrices when using the presented method. Thus, the presented method can selectively analyze lactones and may further complement existing lipidomic approaches to discover new LMs.
Collapse
Affiliation(s)
- Elana A Slutsky Smith
- Laboratory of Vascular Signaling Research, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel
| | - Soliman Khatib
- Laboratory of Natural Products and Analytical Chemistry, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel
| | - Andrea Szuchman-Sapir
- Laboratory of Vascular Signaling Research, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel.
| |
Collapse
|
4
|
Connelly PW, Yan AT, Nash MM, Wald RM, Lok C, Gunaratnam L, Kirpalani A, Prasad GVR. The Increase in Paraoxonase 1 Is Associated With Decrease in Left Ventricular Volume in Kidney Transplant Recipients. Front Cardiovasc Med 2021; 8:763389. [PMID: 34926614 PMCID: PMC8674585 DOI: 10.3389/fcvm.2021.763389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/20/2021] [Indexed: 11/26/2022] Open
Abstract
Background: Patients on dialysis have impaired cardiac function, in part due to increased fluid volume and ventricular stress. Restored kidney function through transplantation reduces left ventricular volume in both systole and diastole. We previously reported that the decrease in NT-proB-type natriuretic peptide (NT-proBNP) was associated with a decrease in adiponectin. Paraoxonase 1 (PON1) has been inversely associated with cardiovascular outcomes. We now report the association of changes in PON1 with changes in left ventricular volume and left ventricular mass after kidney transplantation. Design: Patients on dialysis were assessed at baseline and 12 months after kidney transplantation (n = 38). A comparison group of patients on dialysis who were not expected to receive a transplant in the next 24 months were studied (n = 43) to determine if the change of PON1 with kidney transplantation achieved a significance greater than that due to biologic variation. Left ventricular volume and mass were determined by cardiac magnetic resonance imaging. PON1 was measured by arylesterase activity and by mass. Results: PON1 mass and activity were not different between the groups at baseline. Both PON1 mass and activity were increased post-kidney transplantation (p < 0.0001 for change). The change in PON1 mass (p = 0.0062) and PON1 arylesterase activity (p = 0.0254) were inversely correlated with the change in NT-proBNP for patients receiving a kidney transplant. However, only the change in the PON1 mass, and not the change in PON1 arylesterase, was inversely correlated with the change in left ventricular volume (ml/m2.7) (p = 0.0146 and 0.0114 for diastolic and systolic, respectively) and with the change in hemoglobin (p = 0.0042). Conclusion: Both PON1 mass and arylesterase activity are increased by kidney transplantation. The increase in PON1 mass is consistent with a novel relationship to the increase in hemoglobin and decrease in left ventricular volume and NT-proBNP seen when kidney function is restored.
Collapse
Affiliation(s)
- Philip W Connelly
- Division of Endocrinology and Metabolism, Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, Canada
| | - Andrew T Yan
- Division of Cardiology, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Michelle M Nash
- Kidney Transplant Program, St. Michael's Hospital, Toronto, ON, Canada
| | - Rachel M Wald
- Division of Cardiology, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Charmaine Lok
- Division of Nephrology, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Lakshman Gunaratnam
- Division of Nephrology, London Health Sciences Centre, Western University, London, ON, Canada
| | - Anish Kirpalani
- Department of Medical Imaging, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - G V Ramesh Prasad
- Kidney Transplant Program, St. Michael's Hospital, Toronto, ON, Canada
| |
Collapse
|
5
|
Barsheshet M, Ertracht O, Boginya A, Reuveni T, Atar S, Szuchman-Sapir A. Vasodilation and blood pressure-lowering effect mediated by 5,6-EEQ lactone in 5/6 nephrectomy hypertensive rats. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:159031. [PMID: 34428548 DOI: 10.1016/j.bbalip.2021.159031] [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: 05/13/2021] [Revised: 08/03/2021] [Accepted: 08/16/2021] [Indexed: 11/18/2022]
Abstract
Microvascular dysfunction is a key contributor to vascular hypertension, one of the most common chronic diseases in the world. Microvascular dysfunction leads to the loss of nitric oxide-mediated endothelial dilation and the subsequent compensatory function of endothelium-derived hyperpolarizing (EDH) factors in the regulation of vascular tone. Previously, we showed that lactone metabolite derived from arachidonic acid induces endothelial-dependent vasodilation in isolated human microvessels. Based on structural similarities, we hypothesize that additional lactone metabolites formed from eicosapentaenoic fatty acid (EPA) may bear EDH properties. AIM To elucidate the vasodilatory and blood pressure (BP)-reducing characteristics of the 5,6-EEQ (5,6-epoxyeicosatetraenoic acids) lactone (EPA-L) in hypertensive 5/6 nephrectomy (5/6Nx) rats. METHODS 5/6Nx hypertensive rats intravenously administrated with EPA-L for five days. BP, blood and urine chemistry, and kidney function were detected and analyzed. Vascular dilation was detected using a pressure myograph with or without Ca2+ - activated K+ (KCa) endothelial channel inhibitors. KCNN3 and KCNN4 gene expression (mRNA) detected in mesenteric arteries from 5/6Nx and NT rats. RESULTS EPA-L administration to 5/6Nx rats significantly (p < 0.05) reduced BP and heart rate without affecting kidney function. 5/6Nx rat mesenteric arterioles exhibited a lower dilation response to acetylcholine (10-7 mol/l) than normotensive (NT) vessels, while EPA-L administration restored the vessel relaxation response. The EPA-L-driven relaxation of mesenteric arteries was significantly reduced by pretreatment with TRAM-34 and apamin. However, KCa channel expression did not significantly differ between 5/6Nx and NT mesenteric arteries. CONCLUSION EPA-L reduces BP by improving microvessel dilation involving calcium-dependent potassium endothelial channels.
Collapse
Affiliation(s)
- Michal Barsheshet
- Laboratory of Vascular Signaling Research, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel
| | - Offir Ertracht
- The Cardiovascular Research Laboratory, Research institute, Galilee Medical Center, Nahariya, Israel
| | - Alexandra Boginya
- Laboratory of Vascular Signaling Research, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel
| | - Tal Reuveni
- The Cardiovascular Research Laboratory, Research institute, Galilee Medical Center, Nahariya, Israel
| | - Shaul Atar
- The Cardiovascular Research Laboratory, Research institute, Galilee Medical Center, Nahariya, Israel; The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel; The Cardiology Department, Galilee Medical Center, Nahariya, Israel
| | - Andrea Szuchman-Sapir
- Laboratory of Vascular Signaling Research, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel.
| |
Collapse
|
6
|
Muri J, Feng Q, Wolleb H, Shamshiev A, Ebner C, Tortola L, Broz P, Carreira EM, Kopf M. Cyclopentenone Prostaglandins and Structurally Related Oxidized Lipid Species Instigate and Share Distinct Pro- and Anti-inflammatory Pathways. Cell Rep 2021; 30:4399-4417.e7. [PMID: 32234476 DOI: 10.1016/j.celrep.2020.03.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 12/11/2019] [Accepted: 03/05/2020] [Indexed: 01/06/2023] Open
Abstract
Oxidized lipids play a critical role in a variety of diseases with two faces: pro- and anti-inflammatory. The molecular mechanisms of this Janus-faced activity remain largely unknown. Here, we have identified that cyclopentenone-containing prostaglandins such as 15d-PGJ2 and structurally related oxidized phospholipid species possess a dual and opposing bioactivity in inflammation, depending on their concentration. Exposure of dendritic cells (DCs)/macrophages to low concentrations of such lipids before Toll-like receptor (TLR) stimulation instigates an anti-inflammatory response mediated by nuclear factor erythroid 2-related factor 2 (Nrf2)-dependent inhibition of nuclear factor κB (NF-κB) activation and downstream targets. By contrast, high concentrations of such lipids upon TLR activation of DCs/macrophages result in inflammatory apoptosis characterized by mitochondrial depolarization and caspase-8-mediated interleukin (IL)-1β maturation independently of Nrf2 and the classical inflammasome pathway. These results uncover unexpected pro- and anti-inflammatory activities of physiologically relevant lipid species generated by enzymatic and non-enzymatic oxidation dependent on their concentration, a phenomenon known as hormesis.
Collapse
Affiliation(s)
- Jonathan Muri
- Institute of Molecular Health Sciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Qian Feng
- Institute of Molecular Health Sciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Helene Wolleb
- Laboratory of Organic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Abdijapar Shamshiev
- Institute of Molecular Health Sciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Christian Ebner
- Laboratory of Organic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Luigi Tortola
- Institute of Molecular Health Sciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Petr Broz
- Department of Biochemistry, University of Lausanne, 1066 Epalinges, Switzerland
| | - Erick M Carreira
- Laboratory of Organic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Manfred Kopf
- Institute of Molecular Health Sciences, ETH Zürich, 8093 Zürich, Switzerland.
| |
Collapse
|
7
|
Raz BD, Dimitry C, Andrea SS. The uptake mechanism and intracellular fate of Paraoxonase-1 in endothelial cells. Free Radic Biol Med 2020; 153:26-33. [PMID: 32244050 DOI: 10.1016/j.freeradbiomed.2020.03.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/18/2020] [Accepted: 03/30/2020] [Indexed: 12/16/2022]
Abstract
Paraoxonase-1 (PON1) is a high-density lipoprotein (HDL)-associated lactonase that plays a significant role in the anti-atherosclerotic activity of HDL. However, several studies have shown that PON1 localizes in cells, where it operates independently of HDL. Previously, we showed that PON1 localizes in endothelial cells (ECs), and impairs vasodilation mediated by the endothelium-derived hyperpolarizing factor (EDHF) 5,6-δ-DHTL. However, the internalization pathway of PON1 into ECs, and the intracellular fate of PON1 are unknown. Therefore, the present study aimed to elucidate the uptake mechanism, intracellular trafficking and the function of PON1 in ECs. We conducted a series of inhibition experiments of fluorescently labeled recombinant PON1 (rePON1) in ECs, followed by FACS analyses. We found that rePON1 binds the EC membrane via specific binding sites located in lipid-rafts/caveolae microdomains that are shared with HDL, and internalized through dynamin-dependent endocytosis. Qualitative assessments of the intracellular trafficking of rePON1, using confocal z-stack images, showed colocalization of the labeled rePON1 with early and late endosome/lysosome markers. Accordingly, a "pulse-chase" incubation of rePON1, followed by lactonase activity measurement in EC lysate, revealed that rePON1 retains its lactonase activity after binding to the cells. However, this activity decreases over time. Finally, induction of endothelial dysfunction with high glucose, angiotensin II, or palmitic acid increased rePON1 uptake by ECs. In conclusion, these results indicate that free PON1 interacts with ECs via binding sites located in lipid-rafts/caveolae, where it is enzymatically active and regulates endothelial functions. However, once internalized, PON1 is degraded. Additionally, alteration in endothelial function affects PON1 uptake by ECs.
Collapse
Affiliation(s)
- Ben-David Raz
- Laboratory of Vascular Signaling Research, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel
| | | | - Szuchman-Sapir Andrea
- Laboratory of Vascular Signaling Research, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel.
| |
Collapse
|
8
|
Naik B, Gupta N, Ojha R, Singh S, Prajapati VK, Prusty D. High throughput virtual screening reveals SARS-CoV-2 multi-target binding natural compounds to lead instant therapy for COVID-19 treatment. Int J Biol Macromol 2020; 160:1-17. [PMID: 32470577 PMCID: PMC7250083 DOI: 10.1016/j.ijbiomac.2020.05.184] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 12/21/2022]
Abstract
The present-day world is severely suffering from the recently emerged SARS-CoV-2. The lack of prescribed drugs for the deadly virus has stressed the likely need to identify novel inhibitors to alleviate and stop the pandemic. In the present high throughput virtual screening study, we used in silico techniques like receptor-ligand docking, Molecular dynamic (MD), and ADME properties to screen natural compounds. It has been documented that many natural compounds display antiviral activities, including anti–SARS-CoV effect. The present study deals with compounds of Natural Product Activity and Species Source (NPASS) database with known biological activity that probably impedes the activity of six essential enzymes of the virus. Promising drug-like compounds were identified, demonstrating better docking score and binding energy for each druggable targets. After an extensive screening analysis, three novel multi-target natural compounds were predicted to subdue the activity of three/more major drug targets simultaneously. Concerning the utility of natural compounds in the formulation of many therapies, we propose these compounds as excellent lead candidates for the development of therapeutic drugs against SARS-CoV-2.
Collapse
Affiliation(s)
- Biswajit Naik
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817 Ajmer, Rajasthan, India
| | - Nidhi Gupta
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817 Ajmer, Rajasthan, India
| | - Rupal Ojha
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817 Ajmer, Rajasthan, India
| | - Satyendra Singh
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817 Ajmer, Rajasthan, India
| | - Vijay Kumar Prajapati
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817 Ajmer, Rajasthan, India
| | - Dhaneswar Prusty
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817 Ajmer, Rajasthan, India.
| |
Collapse
|
9
|
Mutual Influences between Nitric Oxide and Paraoxonase 1. Antioxidants (Basel) 2019; 8:antiox8120619. [PMID: 31817387 PMCID: PMC6943684 DOI: 10.3390/antiox8120619] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 12/13/2022] Open
Abstract
One of the best consolidated paradigms in vascular pharmacology is that an uncontrolled excess of oxidizing chemical species causes tissue damage and loss of function in the endothelial and subendothelial layers. The fact that high-density lipoproteins play an important role in preventing such an imbalance is integrated into that concept, for which the expression and activity of paraoxonases is certainly crucial. The term paraoxonase (aryldialkyl phosphatase, EC 3.1.8.1) encompasses at least three distinct isoforms, with a wide variation in substrate affinity, cell and fluid localization, and biased expression of polymorphism. The purpose of this review is to determine the interactions that paraoxonase 1 has with nitric oxide synthase, its reaction product, nitric oxide (nitrogen monoxide, NO), and its derived reactive species generated in an oxidative medium, with a special focus on its pathological implications.
Collapse
|
10
|
Alaminos-Castillo MÁ, Ho-Plagaro A, García-Serrano S, Santiago-Fernandez C, Rodríguez-Pacheco F, Garrido-Sanchez L, Rodriguez C, Valdes S, Gonzalo M, Moreno-Ruiz FJ, Rodríguez-Cañete A, Montiel-Casado C, Garcia-Fuentes E. Increased PON lactonase activity in morbidly obese patients is associated with impaired lipid profile. Int J Clin Pract 2019; 73:e13315. [PMID: 30681756 DOI: 10.1111/ijcp.13315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/10/2019] [Accepted: 01/22/2019] [Indexed: 12/26/2022] Open
Abstract
AIMS The paraoxonase-1 (PON1) enzyme could play an important role in the anti-oxidant capacity of high-density lipoprotein. However, there are no studies which analyse the evolution of the three activities of PON1 (PON arylesterase, PON paraoxonase and PON lactonase) after Roux-en-Y Gastric Bypass (RYGB) in morbidly obese subjects. We analysed the association of PON concentration and activities with the evolution of morbidly obese subjects who underwent RYGB, and its relationship with biochemical variables and different atherogenic indices. METHODS Twenty-seven non-obese and 82 morbidly obese subjects were studied before and 6 months after RYGB. RESULTS Before RYGB, morbidly obese subjects had a lower PON1 concentration (P < 0.05) and higher PON lactonase activity (P < 0.001) than non-obese subjects, with no differences in PON arylesterase and PON paraoxonase activities. After RYGB, PON1 concentration (P < 0.05) and PON lactonase activity (P < 0.001) decreased with regard to the presurgery state. PON lactonase activity correlated with the atherogenic index of plasma before (r = 0.19, P = 0.047) and after RYGB (r = 0.27, P = 0.035). In different multiple lineal regression analysis models, presurgery PON lactonase activity was associated with total cholesterol (β = 0.909, P < 0.001), LDL (β = 0.632, P = 0.006) and DBP (β = 0.230, P = 0.030) (R2 = 0.295), postsurgery PON lactonase activity was associated with esterified cholesterol (β = 0.362, P = 0.011) (R2 = 0.131), and the change (Δ) in PON lactonase activity after RYGB was associated with Δesterified cholesterol (β = 0.304, P = 0.030) (R2 = 0.093). CONCLUSIONS PON lactonase activity is associated with the presence of morbid obesity and with an impaired lipid profile. All associations found could indicate the relationship between PON lactonase activity and the development of atherosclerosis.
Collapse
Affiliation(s)
| | - Ailec Ho-Plagaro
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Universidad de Málaga, Málaga, Spain
| | - Sara García-Serrano
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas-CIBERDEM, Málaga, Spain
| | - Concepción Santiago-Fernandez
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Universidad de Málaga, Málaga, Spain
| | - Francisca Rodríguez-Pacheco
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
| | - Lourdes Garrido-Sanchez
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- CIBER Fisiología de la Obesidad y Nutrición-CIBEROBN, Málaga, Spain
| | - Cristina Rodriguez
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
| | - Sergio Valdes
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas-CIBERDEM, Málaga, Spain
| | - Montserrat Gonzalo
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Francisco J Moreno-Ruiz
- Unidad de Gestión Clínica de Cirugía General, Digestiva y Trasplantes, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Alberto Rodríguez-Cañete
- Unidad de Gestión Clínica de Cirugía General, Digestiva y Trasplantes, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Custodia Montiel-Casado
- Unidad de Gestión Clínica de Cirugía General, Digestiva y Trasplantes, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Eduardo Garcia-Fuentes
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- CIBER Fisiología de la Obesidad y Nutrición-CIBEROBN, Málaga, Spain
| |
Collapse
|
11
|
Teiber JF, Xiao J, Kramer GL, Ogawa S, Ebner C, Wolleb H, Carreira EM, Shih DM, Haley RW. Identification of biologically active δ-lactone eicosanoids as paraoxonase substrates. Biochem Biophys Res Commun 2018; 505:87-92. [PMID: 30241945 DOI: 10.1016/j.bbrc.2018.09.083] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 09/13/2018] [Indexed: 01/08/2023]
Abstract
The mammalian paraoxonases (PONs 1, 2 and 3) are a family of esterases that are highly conserved within and between species. They exhibit antioxidant and anti-inflammatory activities. However, their physiological function(s) and native substrates are uncertain. Previous structure-activity relationship studies demonstrate that PONs have a high specificity for lipophilic lactones, suggesting that such compounds may be representative of native substrates. This report describes the ability of PONs to hydrolyze two bioactive δ-lactones derived from arachidonic acid, 5,6-dihydroxy-eicosatrienoic acid lactone (5,6-DHTL) and cyclo-epoxycyclopentenone (cyclo-EC). Both lactones were very efficiently hydrolyzed by purified PON3. PON1 efficiently hydrolyzed 5,6-DHTL, but with a specific activity about 15-fold lower than PON3. 5,6-DHTL was a poor substrate for PON2. Cyclo-EC was a poor substrate for PON1 and not hydrolyzed by PON2. Studies with the PON inhibitor EDTA and a serine esterase inhibitor indicated that the PONs are the main contributors to hydrolysis of the lactones in human and mouse liver homogenates. Studies with homogenates from PON3 knockout mouse livers indicated that >80% of the 5,6-DHTL and cyclo-EC lactonase activities were attributed to PON3. The findings provide further insight into the structural requirements for PONs substrates and support the hypothesis that PONs, particularly PON1 and PON3, evolved to hydrolyze and regulate a class of lactone lipid mediators derived from polyunsaturated fatty acids.
Collapse
Affiliation(s)
- John F Teiber
- Department of Internal Medicine, Division of Epidemiology, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
| | - Junhui Xiao
- Department of Internal Medicine, Division of Epidemiology, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Gerald L Kramer
- Department of Internal Medicine, Division of Epidemiology, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Seiji Ogawa
- ETH-Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog Weg 3, HCI H335, Zürich, 8093, Switzerland
| | - Christian Ebner
- ETH-Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog Weg 3, HCI H335, Zürich, 8093, Switzerland
| | - Helene Wolleb
- ETH-Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog Weg 3, HCI H335, Zürich, 8093, Switzerland
| | - Erick M Carreira
- ETH-Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog Weg 3, HCI H335, Zürich, 8093, Switzerland
| | - Diana M Shih
- Department of Medicine, Division of Cardiology, UCLA, Los Angeles, CA, 90095, USA
| | - Robert W Haley
- Department of Internal Medicine, Division of Epidemiology, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| |
Collapse
|
12
|
Perła-Kaján J, Borowczyk K, Głowacki R, Nygård O, Jakubowski H. Paraoxonase 1 Q192R genotype and activity affect homocysteine thiolactone levels in humans. FASEB J 2018; 32:fj201800346R. [PMID: 29782204 DOI: 10.1096/fj.201800346r] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Genetic or nutritional deficiencies in 1 carbon and homocysteine (Hcy) metabolism elevate Hcy-thiolactone levels and are associated with cardiovascular and neurologic diseases. Hcy-thiolactone causes protein damage, cellular toxicity, and proatherogenic changes in gene expression in human cells and tissues. A polymorphic cardio-protective enzyme, paraoxonase 1 (PON1), hydrolyzes Hcy-thiolactone in vitro. However, whether Hcy-thiolactone hydrolysis is a physiologic function of the PON1 protein and whether polymorphisms in the PON1 gene affect Hcy-thiolactone levels in humans was unknown. Here we show that the PON1-192 genotype, which affects the enzymatic activity of the PON1 protein, also affected urinary Hcy-thiolactone levels, normalized to creatinine. Carriers of the PON1-192R allele had significantly lower Hcy-thiolactone/creatinine levels than individuals carrying the PON1-192Q allele. Individuals with low serum PON1 paraoxonase activity had significantly higher Hcy-thiolactone/creatinine levels compared with individuals with high paraoxonase activity. In contrast, Hcy-thiolactone/creatinine levels were unaffected by serum PON1 arylesterase activity or by PON1 protein levels. Taken together, these findings suggest that PON1 hydrolyzes Hcy-thiolactone in humans and that the interindividual variations in PON1 genotype/activity can modulate the pathology of hyperhomocysteinemia.-Perła-Kaján, J., Borowczyk, K., Głowacki, R., Nygård, O., Jakubowski, H. Paraoxonase 1 Q192r genotype and activity affect homocysteine thiolactone levels in humans.
Collapse
Affiliation(s)
- Joanna Perła-Kaján
- Department of Biochemistry and Biotechnology, University of Life Sciences, Poznań, Poland
| | - Kamila Borowczyk
- Department of Environmental Chemistry, Faculty of Chemistry, University of Łódź, Łódź, Poland
| | - Rafał Głowacki
- Department of Environmental Chemistry, Faculty of Chemistry, University of Łódź, Łódź, Poland
| | - Ottar Nygård
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Hieronim Jakubowski
- Department of Biochemistry and Biotechnology, University of Life Sciences, Poznań, Poland
- Department of Microbiology, Biochemistry, and Molecular Genetics, International Center for Public Health, Rutgers-New Jersey Medical School, Newark, New Jersey, USA
| |
Collapse
|
13
|
Levi-Rosenzvig R, Beyer AM, Hockenberry J, Ben-Shushan RS, Chuyun D, Atiya S, Tamir S, Gutterman DD, Szuchman-Sapir A. 5,6-δ-DHTL, a stable metabolite of arachidonic acid, is a potential EDHF that mediates microvascular dilation. Free Radic Biol Med 2017; 103:87-94. [PMID: 28007573 DOI: 10.1016/j.freeradbiomed.2016.12.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 11/25/2016] [Accepted: 12/18/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Prominent among the endothelium-derived hyperpolarizing factors (EDHFs) are the Cytochrome P450 (CYP) epoxygenase-derived arachidonic acid metabolites-the epoxyeicosatrienoic acids (EETs), that are known as vasodilators in the microcirculation. Among the EET isomers, 5,6-EET undergoes rapid lactonization in aqueous solution to the more stable 5,6-δ DHTL (5,6-dihydroxytrienoic lactone) isomer. It is unclear whether this metabolic transformation maintains its vasodilator potential and what is the mechanism of action. Thus, the aim of this study was to investigate the capacity of the lactone isomer, 5,6- δ DHTL, to induce dilation of arterioles and explore the endothelial Ca2+ response mechanism. APPROACH AND RESULTS In isolated human microvessels 5,6- δ DHTL induced a dose dependent vasodilation, that was inhibited by mechanical denudation of the endothelial layer. This 5,6- δ DHTL -dependent dilation was partially reduced in the presence of L-NAME (NOS inhibitor) or the NO-scavenger, cPTIO (by 19.7%, which was not statistically significantly). In human endothelial cells, 5,6- δ DHTL induced an increase in intracellular Ca2+([Ca2+]i) in a dose dependent manner. This increase in [Ca2+]i was similar to that induced by the 5,6-EET isomer, and significantly higher than observed by administering the hydrolytic dihydroxy isomer, 5,6-DHET. Further experiments aimed to investigate the mechanism of action revealed, that the 5,6-δ DHTL-mediated ([Ca2+]i elevation was reduced by IP3 and ryanodine antagonists, but not by antagonists to the TRPV4 membrane channel. Similar to their effect on the dilation response in the arteries, NO inhibitors reduced the 5,6-δ DHTL-mediated ([Ca2+]i elevation by 20%. Subsequent 5,6-δ DHTL -dependent K+ ion efflux from endothelial cells, was abolished by the inhibition of small and intermediate conductance KCa. CONCLUSIONS The present study shows that 5,6-δ DHTL is a potential EDHF, that dilates microvessels through a mechanism that involves endothelial dependent Ca2+ entry, requiring endothelial hyperpolarization. These results suggest the existence of additional lactone-containing metabolites that can be derived from the PUFA metabolism and which may function as novel EDHFs.
Collapse
Affiliation(s)
- Reut Levi-Rosenzvig
- Laboratory of Human Health and Nutrition Sciences, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel
| | - Andreas M Beyer
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA; Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Joseph Hockenberry
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Rotem Shelly Ben-Shushan
- Laboratory of Human Health and Nutrition Sciences, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel
| | | | - Shahar Atiya
- Laboratory of Human Health and Nutrition Sciences, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel
| | - Snait Tamir
- Laboratory of Human Health and Nutrition Sciences, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel
| | - David D Gutterman
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Andrea Szuchman-Sapir
- Laboratory of Human Health and Nutrition Sciences, MIGAL-Galilee Research Institute, Ltd., Kiryat Shmona, Israel; Tel-Hai College, Upper Galilee, Israel.
| |
Collapse
|
14
|
Ellinsworth DC, Sandow SL, Shukla N, Liu Y, Jeremy JY, Gutterman DD. Endothelium-Derived Hyperpolarization and Coronary Vasodilation: Diverse and Integrated Roles of Epoxyeicosatrienoic Acids, Hydrogen Peroxide, and Gap Junctions. Microcirculation 2016; 23:15-32. [PMID: 26541094 DOI: 10.1111/micc.12255] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 11/01/2015] [Indexed: 12/22/2022]
Abstract
Myocardial perfusion and coronary vascular resistance are regulated by signaling metabolites released from the local myocardium that act either directly on the VSMC or indirectly via stimulation of the endothelium. A prominent mechanism of vasodilation is EDH of the arteriolar smooth muscle, with EETs and H(2)O(2) playing important roles in EDH in the coronary microcirculation. In some cases, EETs and H(2)O(2) are released as transferable hyperpolarizing factors (EDHFs) that act directly on the VSMCs. By contrast, EETs and H(2)O(2) can also promote endothelial KCa activity secondary to the amplification of extracellular Ca(2+) influx and Ca(2+) mobilization from intracellular stores, respectively. The resulting endothelial hyperpolarization may subsequently conduct to the media via myoendothelial gap junctions or potentially lead to the release of a chemically distinct factor(s). Furthermore, in human isolated coronary arterioles dilator signaling involving EETs and H(2)O(2) may be integrated, being either complimentary or inhibitory depending on the stimulus. With an emphasis on the human coronary microcirculation, this review addresses the diverse and integrated mechanisms by which EETs and H(2)O(2) regulate vessel tone and also examines the hypothesis that myoendothelial microdomain signaling facilitates EDH activity in the human heart.
Collapse
Affiliation(s)
| | - Shaun L Sandow
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland, Australia
| | - Nilima Shukla
- Bristol Heart Institute, University of Bristol, Bristol, UK
| | - Yanping Liu
- Division of Research Infrastructure, National Center for Research Resources, National Institutes of Health, Bethesda, Maryland, USA
| | - Jamie Y Jeremy
- Bristol Heart Institute, University of Bristol, Bristol, UK
| | - David D Gutterman
- Division of Cardiovascular Medicine, Departments of Medicine, Physiology and Pharmacology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| |
Collapse
|
15
|
Ramírez D, Caballero J. Is It Reliable to Use Common Molecular Docking Methods for Comparing the Binding Affinities of Enantiomer Pairs for Their Protein Target? Int J Mol Sci 2016; 17:ijms17040525. [PMID: 27104528 PMCID: PMC4848981 DOI: 10.3390/ijms17040525] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 03/22/2016] [Accepted: 04/01/2016] [Indexed: 12/05/2022] Open
Abstract
Molecular docking is a computational chemistry method which has become essential for the rational drug design process. In this context, it has had great impact as a successful tool for the study of ligand–receptor interaction modes, and for the exploration of large chemical datasets through virtual screening experiments. Despite their unquestionable merits, docking methods are not reliable for predicting binding energies due to the simple scoring functions they use. However, comparisons between two or three complexes using the predicted binding energies as a criterion are commonly found in the literature. In the present work we tested how wise is it to trust the docking energies when two complexes between a target protein and enantiomer pairs are compared. For this purpose, a ligand library composed by 141 enantiomeric pairs was used, including compounds with biological activities reported against seven protein targets. Docking results using the software Glide (considering extra precision (XP), standard precision (SP), and high-throughput virtual screening (HTVS) modes) and AutoDock Vina were compared with the reported biological activities using a classification scheme. Our test failed for all modes and targets, demonstrating that an accurate prediction when binding energies of enantiomers are compared using docking may be due to chance. We also compared pairs of compounds with different molecular weights and found the same results.
Collapse
Affiliation(s)
- David Ramírez
- Centro de Bioinformática y Simulación Molecular (CBSM), Universidad de Talca. 2 Norte 685, Casilla 721, Talca, Chile.
| | - Julio Caballero
- Centro de Bioinformática y Simulación Molecular (CBSM), Universidad de Talca. 2 Norte 685, Casilla 721, Talca, Chile.
| |
Collapse
|