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Rimola V, Hahnefeld L, Zhao J, Jiang C, Angioni C, Schreiber Y, Osthues T, Pierre S, Geisslinger G, Ji RR, Scholich K, Sisignano M. Lysophospholipids Contribute to Oxaliplatin-Induced Acute Peripheral Pain. J Neurosci 2020; 40:9519-9532. [PMID: 33158961 PMCID: PMC7724144 DOI: 10.1523/jneurosci.1223-20.2020] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/09/2020] [Accepted: 10/13/2020] [Indexed: 02/06/2023] Open
Abstract
Oxaliplatin, a platinum-based chemotherapeutic drug, which is used as first-line treatment for some types of colorectal carcinoma, causes peripheral neuropathic pain in patients. In addition, an acute peripheral pain syndrome develop in almost 90% of patients immediately after oxaliplatin treatment, which is poorly understood mechanistically but correlates with incidence and severity of the later-occurring neuropathy. Here we investigated the effects of acute oxaliplatin treatment in a murine model, showing that male and female mice develop mechanical hypersensitivity 24 h after oxaliplatin treatment. Interestingly, we found that the levels of several lipids were significantly altered in nervous tissue during oxaliplatin-induced acute pain. Specifically, the linoleic acid metabolite 9,10-EpOME (epoxide of linoleic acid) as well as the lysophospholipids lysophosphatidylcholine (LPC) 18:1 and LPC 16:0 were significantly increased 24 h after oxaliplatin treatment in sciatic nerve, DRGs, or spinal cord tissue as revealed by untargeted and targeted lipidomics. In contrast, inflammatory markers including cytokines and chemokines, ROS markers, and growth factors are unchanged in the respective nervous system tissues. Importantly, LPC 18:1 and LPC 16:0 can induce Ca2+ transients in primary sensory neurons, and we identify LPC 18:1 as a previously unknown endogenous activator of the ligand-gated calcium channels transient receptor potential V1 and M8 (transient receptor potential vanilloid 1 and transient receptor potential melastatin 8) in primary sensory neurons using both pharmacological inhibition and genetic knockout. Additionally, a peripheral LPC 18:1 injection was sufficient to induce mechanical hypersensitivity in naive mice. Hence, targeting signaling lipid pathways may ameliorate oxaliplatin-induced acute peripheral pain and the subsequent long-lasting neuropathy.SIGNIFICANCE STATEMENT The first-line cytostatic drug oxaliplatin can cause acute peripheral pain and chronic neuropathic pain. The former is causally connected with the chronic neuropathic pain, but its mechanisms are poorly understood. Here, we performed a broad unbiased analysis of cytokines, chemokines, growth factors, and ∼200 lipids in nervous system tissues 24 h after oxaliplatin treatment, which revealed a crucial role of lysophospholipids lysophosphatidylcholine (LPC) 18:1, LPC 16:0, and 9,10-EpOME in oxaliplatin-induced acute pain. We demonstrate for the first time that LPC 18:1 contributes to the activation of the ion channels transient receptor potential vanilloid 1 and transient receptor potential melastatin 8 in sensory neurons and causes mechanical hypersensitivity after peripheral injection in vivo These findings suggest that the LPC-mediated lipid signaling is involved in oxaliplatin-induced acute peripheral pain.
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Affiliation(s)
- Vittoria Rimola
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, University Hospital, Goethe-University, D-60590 Frankfurt am Main, Germany
| | - Lisa Hahnefeld
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, University Hospital, Goethe-University, D-60590 Frankfurt am Main, Germany
| | - Junli Zhao
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina 27710
| | - Changyu Jiang
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina 27710
| | - Carlo Angioni
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, University Hospital, Goethe-University, D-60590 Frankfurt am Main, Germany
| | - Yannick Schreiber
- Fraunhofer Institute for Molecular Biology and Applied Ecology-Project Group Translational Medicine and Pharmacology (IME-TMP), 60596 Frankfurt am Main, Germany
| | - Tabea Osthues
- Fraunhofer Institute for Molecular Biology and Applied Ecology-Project Group Translational Medicine and Pharmacology (IME-TMP), 60596 Frankfurt am Main, Germany
| | - Sandra Pierre
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, University Hospital, Goethe-University, D-60590 Frankfurt am Main, Germany
| | - Gerd Geisslinger
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, University Hospital, Goethe-University, D-60590 Frankfurt am Main, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology-Project Group Translational Medicine and Pharmacology (IME-TMP), 60596 Frankfurt am Main, Germany
- Fraunhofer Cluster of Excellence for Immune-Mediated Diseases (CIMD), 30625 Hannover, Germany
| | - Ru-Rong Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina 27710
| | - Klaus Scholich
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, University Hospital, Goethe-University, D-60590 Frankfurt am Main, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology-Project Group Translational Medicine and Pharmacology (IME-TMP), 60596 Frankfurt am Main, Germany
- Fraunhofer Cluster of Excellence for Immune-Mediated Diseases (CIMD), 30625 Hannover, Germany
| | - Marco Sisignano
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, University Hospital, Goethe-University, D-60590 Frankfurt am Main, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology-Project Group Translational Medicine and Pharmacology (IME-TMP), 60596 Frankfurt am Main, Germany
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Yarla NS, Bishayee A, Sethi G, Reddanna P, Kalle AM, Dhananjaya BL, Dowluru KSVGK, Chintala R, Duddukuri GR. Targeting arachidonic acid pathway by natural products for cancer prevention and therapy. Semin Cancer Biol 2016; 40-41:48-81. [PMID: 26853158 DOI: 10.1016/j.semcancer.2016.02.001] [Citation(s) in RCA: 229] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/23/2016] [Accepted: 02/01/2016] [Indexed: 12/16/2022]
Abstract
Arachidonic acid (AA) pathway, a metabolic process, plays a key role in carcinogenesis. Hence, AA pathway metabolic enzymes phospholipase A2s (PLA2s), cyclooxygenases (COXs) and lipoxygenases (LOXs) and their metabolic products, such as prostaglandins and leukotrienes, have been considered novel preventive and therapeutic targets in cancer. Bioactive natural products are a good source for development of novel cancer preventive and therapeutic drugs, which have been widely used in clinical practice due to their safety profiles. AA pathway inhibitory natural products have been developed as chemopreventive and therapeutic agents against several cancers. Curcumin, resveratrol, apigenin, anthocyans, berberine, ellagic acid, eugenol, fisetin, ursolic acid, [6]-gingerol, guggulsteone, lycopene and genistein are well known cancer chemopreventive agents which act by targeting multiple pathways, including COX-2. Nordihydroguaiaretic acid and baicalein can be chemopreventive molecules against various cancers by inhibiting LOXs. Several PLA2s inhibitory natural products have been identified with chemopreventive and therapeutic potentials against various cancers. In this review, we critically discuss the possible utility of natural products as preventive and therapeutic agents against various oncologic diseases, including prostate, pancreatic, lung, skin, gastric, oral, blood, head and neck, colorectal, liver, cervical and breast cancers, by targeting AA pathway. Further, the current status of clinical studies evaluating AA pathway inhibitory natural products in cancer is reviewed. In addition, various emerging issues, including bioavailability, toxicity and explorability of combination therapy, for the development of AA pathway inhibitory natural products as chemopreventive and therapeutic agents against human malignancy are also discussed.
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Affiliation(s)
- Nagendra Sastry Yarla
- Department of Biochemisty/Bionformatics, Institute of Science, GITAM University, Rushikonda, Visakhapatnam 530 045, Adhra Pradesh, India
| | - Anupam Bishayee
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin Health Sciences Institute, 18301 N. Miami Avenue, Miami, FL 33169, USA.
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore; School of Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University, Western Australia 6009, Australia
| | - Pallu Reddanna
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad 500 046, Telagana, India
| | - Arunasree M Kalle
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad 500 046, Telagana, India; Department of Environmental Health Sciences, Laboratory of Human Environmental Epigenomes, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Bhadrapura Lakkappa Dhananjaya
- Toxinology/Toxicology and Drug Discovery Unit, Center for Emerging Technologies, Jain Global Campus, Jain University, Kanakapura Taluk, Ramanagara 562 112, Karnataka, India
| | - Kaladhar S V G K Dowluru
- Department of Biochemisty/Bionformatics, Institute of Science, GITAM University, Rushikonda, Visakhapatnam 530 045, Adhra Pradesh, India; Department of Microbiology and Bioinformatics, Bilaspur University, Bilaspur 495 001, Chhattisgarh, India
| | - Ramakrishna Chintala
- Department of Environmental Sciences, Institute of Science, GITAM University, Rushikonda, Visakhapatnam 530 045, Adhra Pradesh, India
| | - Govinda Rao Duddukuri
- Department of Biochemisty/Bionformatics, Institute of Science, GITAM University, Rushikonda, Visakhapatnam 530 045, Adhra Pradesh, India.
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Duvernay MT, Matafonov A, Lindsley CW, Hamm HE. Platelet Lipidomic Profiling: Novel Insight into Cytosolic Phospholipase A2α Activity and Its Role in Human Platelet Activation. Biochemistry 2015; 54:5578-88. [PMID: 26295742 DOI: 10.1021/acs.biochem.5b00549] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
With a newer, more selective and efficacious cytosolic phospholipase A2α (cPLA2α) inhibitor available, we revisited the role of cPLA2α activity in platelet activation and discovered that a component of platelet signaling, even larger than previously appreciated, relies on this enzyme. In a whole blood shear-based flow chamber assay, giripladib, a cPLA2α inhibitor, reduced platelet adhesion and accumulation on collagen. Moreover, giripladib differentially affected P-selectin expression and GPIIbIIIa activation depending on the agonist employed. While protease-activated receptor 1 (PAR1)-mediated platelet activation was unaffected by giripladib, the levels of PAR4- and GPVI-mediated platelet activation were significantly reduced. Meanwhile, the thromboxane A2 receptor antagonist SQ29548 had no effect on PAR-, GPVI-, or puriniergic receptor-mediated platelet activation, suggesting that another eicosanoid produced downstream of arachidonic acid liberation by cPLA2α was responsible for this large component of PAR4- and GPVI-mediated platelet activation. In parallel, we profiled PAR-mediated changes in glycerophospholipid (GPL) mass with and without giripladib to better understand cPLA2α-mediated lipid metabolism. Phosphatidylcholine and phosphatidylethanolamine (PE) demonstrated the largest consumption of mass during thrombin stimulation. Additionally, we confirm phosphatidylinositol as a major substrate of cPLA2α. A comparison of PAR1- and PAR4-induced metabolism revealed the consumption of more putative arachidonyl-PE species downstream of PAR1 activation. Instead of enhanced cPLA2α activity and therefore more arachidonic acid liberation downstream of PAR4, these results indicate the major role that cPLA2α activity plays in platelet function and suggest that a novel eicosanoid is produced in response to platelet activation that represents a large component of PAR4- and GPVI-mediated responses.
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Affiliation(s)
- Matthew T Duvernay
- Department of Pharmacology, Vanderbilt University , Nashville, Tennessee 37232, United States
| | - Anton Matafonov
- Hematology/Oncology, Vanderbilt University , Nashville, Tennessee 37232, United States
| | - Craig W Lindsley
- Center for Neuroscience Drug Discovery, Vanderbilt University , Nashville, Tennessee 37232, United States
| | - Heidi E Hamm
- Department of Pharmacology, Vanderbilt University , Nashville, Tennessee 37232, United States
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Group VIB calcium-independent phospholipase A2 (iPLA2γ) regulates platelet activation, hemostasis and thrombosis in mice. PLoS One 2014; 9:e109409. [PMID: 25313821 PMCID: PMC4196902 DOI: 10.1371/journal.pone.0109409] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 08/31/2014] [Indexed: 11/19/2022] Open
Abstract
In platelets, group IVA cytosolic phospholipase A2 (cPLA2α) has been implicated as a key regulator in the hydrolysis of platelet membrane phospholipids, leading to pro-thrombotic thromboxane A2 and anti-thrombotic 12-(S)-hydroxyeicosatetranoic acid production. However, studies using cPLA2α-deficient mice have indicated that other PLA2(s) may also be involved in the hydrolysis of platelet glycerophospholipids. In this study, we found that group VIB Ca2+-independent PLA2 (iPLA2γ)-deficient platelets showed decreases in adenosine diphosphate (ADP)-dependent aggregation and ADP- or collagen-dependent thromboxane A2 production. Electrospray ionization mass spectrometry analysis of platelet phospholipids revealed that fatty acyl compositions of ethanolamine plasmalogen and phosphatidylglycerol were altered in platelets from iPLA2γ-null mice. Furthermore, mice lacking iPLA2γ displayed prolonged bleeding times and were protected against pulmonary thromboembolism. These results suggest that iPLA2γ is an additional, long-sought-after PLA2 that hydrolyzes platelet membranes and facilitates platelet aggregation in response to ADP.
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Sundarraj S, Kannan S, Thangam R, Gunasekaran P. Effects of the inhibition of cytosolic phospholipase A2α in non-small cell lung cancer cells. J Cancer Res Clin Oncol 2012; 138:827-35. [DOI: 10.1007/s00432-012-1157-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Accepted: 01/10/2012] [Indexed: 10/14/2022]
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Hoffmann M, Lopez JJ, Pergola C, Feisst C, Pawelczik S, Jakobsson PJ, Sorg BL, Glaubitz C, Steinhilber D, Werz O. Hyperforin induces Ca2+-independent arachidonic acid release in human platelets by facilitating cytosolic phospholipase A2 activation through select phospholipid interactions. Biochim Biophys Acta Mol Cell Biol Lipids 2010; 1801:462-72. [DOI: 10.1016/j.bbalip.2009.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Revised: 12/15/2009] [Accepted: 12/17/2009] [Indexed: 10/20/2022]
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Beckett CS, Kell PJ, Creer MH, McHowat J. Phospholipase A2-catalyzed hydrolysis of plasmalogen phospholipids in thrombin-stimulated human platelets. Thromb Res 2006; 120:259-68. [PMID: 17055038 PMCID: PMC2204082 DOI: 10.1016/j.thromres.2006.09.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Revised: 07/31/2006] [Accepted: 09/12/2006] [Indexed: 11/25/2022]
Abstract
In the present study, phospholipase A(2) (PLA(2))-catalyzed hydrolysis of platelet membrane phospholipids was investigated by measuring PLA(2) activity, phospholipid hydrolysis, arachidonic acid release and choline lysophospholipid production in thrombin-stimulated human platelets. Thrombin-stimulated platelets demonstrated selective hydrolysis of arachidonylated plasmenylcholine and plasmenylethanolamine, with little change in diacyl phospholipids. Accelerated plasmalogen hydrolysis was accompanied by increased arachidonic acid and thromboxane B(2) release and increased lysoplasmenylcholine production. Thrombin stimulation caused an increase in PLA(2) activity measured in the cytosolic fraction with plasmenylcholine only; no increase in activity was measured with phosphatidylcholine. No change in membrane-associated PLA(2) activity was observed with either substrate tested. Pretreatment with the Ca(2+)-independent PLA(2)-selective inhibitor, bromoenol lactone, inhibited completely any thrombin-stimulated phospholipid hydrolysis. Thus, thrombin stimulation of human platelets activates a cytosolic PLA(2) that selectively hydrolyzes arachidonylated plasmalogen phospholipids.
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Affiliation(s)
- Caroline S Beckett
- Saint Louis University School of Medicine, Department of Pathology, 1402 S. Grand Blvd. St. Louis, MO 63104, United States
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Liu J, Pestina TI, Berndt MC, Steward SA, Jackson CW, Gartner TK. The roles of ADP and TXA in botrocetin/VWF-induced aggregation of washed platelets. J Thromb Haemost 2004; 2:2213-22. [PMID: 15613029 DOI: 10.1111/j.1538-7836.2004.01023.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Binding of von Willebrand factor (VWF) to the platelet membrane glycoprotein (GP) Ib-IX-V complex initiates a cascade of events leading to alphaIIbbeta3 activation and platelet aggregation. The roles of ADP and thromboxane A2 (TXA2) in agglutination-induced GPIbalpha-mediated platelet activation have not been fully described. METHODS Botrocetin and human VWF were used to stimulate washed mouse platelets. Platelets deficient in TXA2 receptors, Galphaq, or alphaIIbbeta3, and inhibitors and chelating agents were used to investigate the roles of TXA2, ADP, alphaIIbbeta3 and Ca2+ in botrocetin/VWF-induced signaling. RESULTS Our data demonstrate that botrocetin/VWF/GPIbalpha-mediated agglutination results in calcium-independent protein kinase C (PKC) and phospholipase A2 (PLA2) activities required for GPIbalpha-elicited TXA2 production that in turn causes dense granule secretion. Aggregation of washed platelets requires TXA2-induced alphaIIbbeta3 activation and ADP signaling. TXA2 or ADP can activate alphaIIbbeta3, but both are required for alpha-granule secretion and aggregation. Botrocetin/VWF-induced dense granule secretion is Galphaq-dependent. alpha-Granule secretion requires initial ADP signaling through P2Y1 and subsequent signaling through P2Y12. Signaling initiated by agglutination is propagated and amplified in an alphaIIbbeta3-dependent manner. CONCLUSIONS In contrast to adhesion or shear stress-induced GPIb-elicited signaling, agglutination-elicited GPIb signaling that activates alphaIIbbeta3 requires TXA2. Agglutination-elicited TXA2 production is independent of Ca2+ influx and mobilization of internal Ca2+ stores. Therefore, our results demonstrate that agglutination-elicited GPIb signaling causes alphaIIbbeta3 activation by a mechanism that is distinct from those used by adhesion, or shear stress-induced GPIb signaling.
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Affiliation(s)
- J Liu
- Division of Experimental Hematology, St Jude Children's Research Hospital, Memphis, TN 38152, USA.
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Schmitt M, Lehr M. HPLC assay with UV spectrometric detection for the evaluation of inhibitors of cytosolic phospholipase A2. J Pharm Biomed Anal 2004; 35:135-42. [PMID: 15030888 DOI: 10.1016/j.jpba.2003.12.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2003] [Revised: 12/22/2003] [Accepted: 12/29/2003] [Indexed: 11/30/2022]
Abstract
A non-radioactive spectrometric assay for the evaluation of inhibitors of cytosolic phospholipase A(2) (cPLA(2)) is described. The enzyme was isolated from human platelets applying anion exchange chromatography. Sonicated covesicles consisting of 0.2mM 1-stearoyl-2-arachidonoyl-sn-glycero-3-phosphocholine and 0.1mM 1,2-dioleoyl-sn-glycerol were used as enzyme substrate. The cPLA(2) activity was determined by measuring the arachidonic acid released by the enzyme with reversed-phase HPLC and UV detection at 200 nm after cleaning up the samples by solid phase extraction. Two known cPLA(2) inhibitors were used to validate the test assay.
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Affiliation(s)
- Melanie Schmitt
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Hittorfstrasse 58-62, D-48149 Münster, Germany
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Berger A, Monnard I, Baur M, Charbonnet C, Safonova I, Jomard A. Epidermal anti-Inflammatory properties of 5,11,14 20:3: effects on mouse ear edema, PGE2 levels in cultured keratinocytes, and PPAR activation. Lipids Health Dis 2002; 1:5. [PMID: 12617747 PMCID: PMC139966 DOI: 10.1186/1476-511x-1-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2002] [Accepted: 12/06/2002] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND 5,11,14 20:3 is similar to 20:4n-6 but lacks the internal Delta8 double bond essential for prostaglandin and eicosanoid synthesis. When previously fed to laboratory animals as a gymnosperm seed oil component it has shown anti-inflammatory properties. RESULTS Herein, topically applied Podocarpus nagi methyl esters (containing 26% 5,11,14 20:3) were incorporated into mouse ear phospholipids, reduced 20:4n-6, and reduced 20:4n-6- and TPA-induced mouse ear edema. Purified 5,11,14 20:3 was taken up by cultured human skin keratinocytes, reduced 20:4n-6, and reduced PGE2 levels dramatically. Purified 5,11,14 20:3 did not affect PPARalpha, PPARgamma, or PPARdelta transactivation. CONCLUSIONS Topical application of 5,11,14 20:3 to skin surfaces can thus reduce inflammatory processes, most likely by displacing 20:4n-6 from phospholipid pools and reducing downstream inflammatory products derived from 20:4n-6 such as PGE2 and leukotrienes. It could have potential use in treating clinical skin disorders resulting from overproduction of 20:4n-6-derived eicosanoid products.
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Affiliation(s)
- Alvin Berger
- Nestlé Research Center, Vers-Chez-les-Blanc, 1000 Lausanne 26, Switzerland
- Current address: Cytochroma, Inc., Manager Lipidomics™, 330 Cochrane Drive, Markham, Ontario L3R 8E4, Canada
| | - Irina Monnard
- Nestlé Research Center, Vers-Chez-les-Blanc, 1000 Lausanne 26, Switzerland
| | - Markus Baur
- Nestlé Research Center, Vers-Chez-les-Blanc, 1000 Lausanne 26, Switzerland
- Current address: Boehringer Ingelheim Pharma KG, Biopharmaceutical Quality & Development, Head of Manufacturing Alliances, Birkendorfer Str. 65, 88397 Biberach / Riss, Germany
| | - Corinne Charbonnet
- Nestlé Research Center, Vers-Chez-les-Blanc, 1000 Lausanne 26, Switzerland
- Current address: chemin de Vuichardaz 9, CH-1030 Bussigny-près-Lausanne, Switzerland
| | - Irina Safonova
- Galderma R&D, Route des Lucioles, BP 87, 06902 Sophia Antipolis, France
| | - André Jomard
- Galderma R&D, Route des Lucioles, BP 87, 06902 Sophia Antipolis, France
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