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Luo W, Gu Y, Fu S, Wang J, Zhang J, Wang Y. Emerging opportunities to treat idiopathic pulmonary fibrosis: Design, discovery, and optimizations of small-molecule drugs targeting fibrogenic pathways. Eur J Med Chem 2023; 260:115762. [PMID: 37683364 DOI: 10.1016/j.ejmech.2023.115762] [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: 06/30/2023] [Revised: 08/15/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most common fibrotic form of idiopathic diffuse lung disease. Due to limited treatment options, IPF patients suffer from poor survival. About ten years ago, Pirfenidone (Shionogi, 2008; InterMune, 2011) and Nintedanib (Boehringer Ingelheim, 2014) were approved, greatly changing the direction of IPF drug design. However, limited efficacy and side effects indicate that neither can reverse the process of IPF. With insights into the occurrence of IPF, novel targets and agents have been proposed, which have fundamentally changed the treatment of IPF. With the next-generation agents, targeting pro-fibrotic pathways in the epithelial-injury model offers a promising approach. Besides, several next-generation IPF drugs have entered phase II/III clinical trials with encouraging results. Due to the rising IPF treatment requirements, there is an urgent need to completely summarize the mechanisms, targets, problems, and drug design strategies over the past ten years. In this review, we summarize known mechanisms, target types, drug design, and novel technologies of IPF drug discovery, aiming to provide insights into the future development and clinical application of next-generation IPF drugs.
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Affiliation(s)
- Wenxin Luo
- Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yilin Gu
- Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Siyu Fu
- Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jiaxing Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, 38163, Tennessee, United States
| | - Jifa Zhang
- Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu, 610212, Sichuan, China.
| | - Yuxi Wang
- Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu, 610212, Sichuan, China.
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Tsutsumi T, Kawabata K, Yamazaki N, Tsukigawa K, Nishi H, Tokumura A. Extracellular and intracellular productions of lysophosphatidic acids and cyclic phosphatidic acids by lysophospholipase D from exogenously added lysophosphatidylcholines to cultured NRK52E cells. Biochim Biophys Acta Mol Cell Biol Lipids 2023:159349. [PMID: 37295607 DOI: 10.1016/j.bbalip.2023.159349] [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: 05/09/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023]
Abstract
Lysophosphatidic acid (LPA) is a bioactive lysophospholipid that is a notable biomarker of kidney injury. However, it is not clear how LPA is produced in renal cells. In this study, we explored LPA generation and its enzymatic pathway in a rat kidney-derived cell, NRK52E cells. Culturing of NRK52E cells with acyl lysophosphatidylcholine (acyl LPC), or lyso-platelet activating factor (lysoPAF, alkyl LPC) was resulted in increased extracellular level of choline, co-product with LPA by lysophospholipase D (lysoPLD). Their activities were enhanced by addition of calcium ions to the cell culture medium, but failed to be inhibited by S32826, an autotaxin (ATX)-specific inhibitor. Liquid chromatography-tandem mass spectrometric analysis revealed the small, but significant extracellular production of acyl LPA/cyclic phosphatidic acid (cPA) and alkyl LPA/cPA. The mRNA expression of glycerophosphodiesterase (GDE) 7 with lysoPLD activity was elevated in confluent NRK52E cells cultured over 3 days. GDE7 plasmid-transfection of NRK52E cells augmented both extracellular and intracellular productions of LPAs (acyl and alkyl) as well as extracellular productions of cPAs (acyl and alkyl) from exogenous LPCs (acyl and alkyl). These results suggest that intact NRK52E cells are able to produce choline and LPA/cPA from exogenous LPCs through the enzymatic action of GDE7 that is located on the plasma membranes and intracellular membranes.
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Affiliation(s)
- Toshihiko Tsutsumi
- Pharmaceutics, Graduate School of Clinical Pharmacy, Kyushu University of Health and Welfare, 1714-1 Yoshino-machi, Nobeoka, Miyazaki 882-8508, Japan.
| | - Kohei Kawabata
- Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan
| | - Naoshi Yamazaki
- Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan
| | - Hiroyuki Nishi
- Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan
| | - Akira Tokumura
- Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan; Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
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Saliakoura M, Konstantinidou G. Lipid Metabolic Alterations in KRAS Mutant Tumors: Unmasking New Vulnerabilities for Cancer Therapy. Int J Mol Sci 2023; 24:ijms24021793. [PMID: 36675307 PMCID: PMC9864058 DOI: 10.3390/ijms24021793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
KRAS is one of the most commonly mutated genes, an event that leads to development of highly aggressive and resistant to any type of available therapy tumors. Mutated KRAS drives a complex network of lipid metabolic rearrangements to support the adaptation of cancer cells to harsh environmental conditions and ensure their survival. Because there has been only a little success in the continuous efforts of effectively targeting KRAS-driven tumors, it is of outmost importance to delineate the exact mechanisms of how they get rewired, leading to this distinctive phenotype. Therefore, the aim of this review is to summarize the available data acquired over the last years with regard to the lipid metabolic regulation of KRAS-driven tumors and elucidate their specific characteristics in an attempt to unravel novel therapeutic targets.
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Lysophosphatidylinositol Induced Morphological Changes and Stress Fiber Formation through the GPR55-RhoA-ROCK Pathway. Int J Mol Sci 2022; 23:ijms231810932. [PMID: 36142844 PMCID: PMC9504244 DOI: 10.3390/ijms231810932] [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: 08/22/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022] Open
Abstract
We previously reported that lysophosphatidylinositol (LPI) functions as an endogenous agonist of GPR55, a novel cannabinoid receptor. However, the physiological roles of LPI-GPR55 have not yet been elucidated in detail. In the present study, we found that LPI induced morphological changes in GPR55-expressing HEK293 cells. LPI induced the cell rounding of GPR55-expressing HEK293 cells but not of empty-vector-transfected cells. LPI also induced the activation of small GTP-binding protein RhoA and increased stress fiber formation in GPR55-expressing HEK293 cells. The inhibition of RhoA and Rho kinase ROCK by the C3 exoenzyme and the ROCK inhibitor reduced LPI-induced cell rounding and stress fiber formation. These results clearly indicated that the LPI-induced morphological changes and the assembly of the cytoskeletons were mediated through the GPR55-RhoA-ROCK pathway.
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Tsutsumi T, Yasuda K, Neya M, Okada H, Tokumura A. Lysophosphatidic acid production from lysophosphatidylcholine by lysophospholipase D activity of autotaxin in plasma of women with normal and adverse pregnancies. Prostaglandins Other Lipid Mediat 2022; 163:106670. [PMID: 35963509 DOI: 10.1016/j.prostaglandins.2022.106670] [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: 06/30/2022] [Revised: 08/02/2022] [Accepted: 08/09/2022] [Indexed: 11/29/2022]
Abstract
To identify biomarker lipids causing preterm delivery, we focused on lysophosphatidylcholine (LPC) and lysophosphatidic acid (LPA). The results of liquid chromatography-tandem mass spectrometry revealed that plasma levels of LPCs and LPAs were higher in the first and third (T3) trimesters of human normal and adverse pregnancies than in the second trimester, suggesting the direct metabolic conversion of LPC to LPA by lysophospholipase D (lysoPLD) activity of autotaxin. The elevated LPC and LPA levels in women with preterm deliveries in T3 were higher than in women with term deliveries under normal pregnancy in T3. We measured lysoPLD activity of diluted sera of pregnant women by quantification of choline released from exogenous LPC, and found progressive increases of lysoPLD activities in women with normal and adverse pregnancies. Ratios of lysoPLD activities for linoleoyl LPC to that for palmitoyl LPC were found to be decreased in pregnant women compared to that in non-pregnant women. These results may be due to the altered patterns of endogenous modulators for autotaxin and the profiles of the bound metal ion.
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Affiliation(s)
- Toshihiko Tsutsumi
- Graduate School of Clinical Pharmacy, Kyushu University of Health and Welfare, 1714-1 Yoshinomachi, Nobeoka 882-8508, Japan
| | - Katsuhiko Yasuda
- Department of Obstetrics and Gynecology, Kansai Medical University, Shinmachi, Hirakata 573-1191, Japan
| | - Mariko Neya
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Hidetaka Okada
- Department of Obstetrics and Gynecology, Kansai Medical University, Shinmachi, Hirakata 573-1191, Japan
| | - Akira Tokumura
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan; Faculty of Pharmacy, Yasuda Women's University, 6-13-1 Yasuhigashi, Asaminami-ku, Hiroshima 731-0153, Japan.
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Effects of lysophosphatidic acid on sling and clasp fibers of the human lower esophageal sphincter. TURKISH JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY 2022; 30:404-409. [PMID: 36303683 PMCID: PMC9580277 DOI: 10.5606/tgkdc.dergisi.2022.22084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 08/05/2021] [Indexed: 11/21/2022]
Abstract
Background
This study aims to explore the role of lysophosphatidic acid receptors in the regulation mechanisms of contraction and relaxation of human lower esophageal sphincter.
Methods
Between July 2015 and March 2016, muscle strips were collected from a total of 30 patients (19 males, 11 females; mean age: 62±9.9 years; range, 52 to 68 years) who underwent an esophagectomy for mid-third esophageal carcinomas. The specimens were maintained in oxygenated Krebs solution. Muscle tension measurement technique in vitro was used to examine the effects of non-selective lysophosphatidic acid receptors agonists and antagonists, as well as selective lysophosphatidic acid receptors agonists on the clasp and sling fibers of human lower esophageal sphincter.
Results
The non-selective dopamine receptor agonist lysophosphatidic acid induced the contraction of the clasp and sling fibers of the human lower esophageal sphincter. The response induced by nonselective lysophosphatidic acid receptor agonist was inhibited completely by non-selective lysophosphatidic acid receptor antagonist. The selective lysophosphatidic acid 1 and 2 receptor agonist and the selective lysophosphatidic acid 3 receptor agonist induced a concentration-dependent contractile response of the clasp and sling fibers of the human lower esophageal sphincter. There was no significant difference in contraction rates between the clasp and sling fibers (p>0.05).
Conclusion
This study indicates that lysophosphatidic acid regulates the lower esophageal sphincter is through its receptor; the lysophosphatidic acid receptors may be involved in the contractile response of the human lower esophageal sphincter.
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Biologically active lipids in the regulation of lymphangiogenesis in disease states. Pharmacol Ther 2021; 232:108011. [PMID: 34614423 DOI: 10.1016/j.pharmthera.2021.108011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/31/2021] [Accepted: 09/01/2021] [Indexed: 02/06/2023]
Abstract
Lymphatic vessels have crucial roles in the regulation of interstitial fluids, immune surveillance, and the absorption of dietary fat in the intestine. Lymphatic function is also closely related to the pathogenesis of various disease states such as inflammation, lymphedema, endometriosis, liver dysfunction, and tumor metastasis. Lymphangiogenesis, the formation of new lymphatic vessels from pre-existing lymphatic vessels, is a critical determinant in the above conditions. Although the effect of growth factors on lymphangiogenesis is well-characterized, and biologically active lipids are known to affect smooth muscle contractility and vasoaction, there is accumulating evidence that biologically active lipids are also important inducers of growth factors and cytokines that regulate lymphangiogenesis. This review discusses recent advances in our understanding of biologically active lipids, including arachidonic acid metabolites, sphingosine 1-phosphate, and lysophosphatidic acid, as regulators of lymphangiogenesis, and the emerging importance of the lymphangiogenesis as a therapeutic target.
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Tsutsumi T, Ino M, Shimizu Y, Kawabata K, Nishi H, Tokumura A. Altered plasma levels of lysophospholipids in response to adrenalectomy of rats. Prostaglandins Other Lipid Mediat 2021; 156:106579. [PMID: 34245896 DOI: 10.1016/j.prostaglandins.2021.106579] [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: 10/27/2020] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 11/15/2022]
Abstract
The aim of this study was to investigate effects of reduced stress hormone by adrenalectomy on rat plasma levels of lysophosphatidic acid (LPA) and other lysophospholipids. We measured activities of lysophospholipase D (lysoPLD) in plasma and lipid phosphate phosphatase (LPP) in blood by determining choline and inorganic phosphate, respectively. LPA, lysophosphatidylcholine (LPC), lysophosphatidylethanolamine (LPE), lysophosphatidylinositol (LPI), lysophosphatidylserine (LPS) and lysophosphatodylglycerol were quantified by LC-MS/MS. In adrenalectomized rats, plasma levels of LPA, LPE, LPS and LPI, but not LPC, were increased. The increased level of LPA were due to decreased LPC level, increases plasma activity of lysoPLD toward LPC and decreased LPP activity toward LPA. Daily injections of deoxycoricosterone into rats selectively reversed increased level of LPS. Our results suggest enzymatic mechanism for increased plasma level of LPA, and indicate that the circulating levels of lysophospholipids including LPA in rats are differently affected by artificial suppression of release of adrenergic hormones.
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Affiliation(s)
- Toshihiko Tsutsumi
- Graduate School of Clinical Pharmacy, Kyushu University of Health and Welfare, 1714-1 Yoshinomachi, Nobeoka, 882-8508, Japan
| | - Masaki Ino
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima, 770-8505, Japan
| | - Yoshibumi Shimizu
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima, 770-8505, Japan
| | - Kohei Kawabata
- Department of Pharmacy, Yasuda Women's University, 13-6-1 Yasuhigashi, Asaminamiku, Hiroshima, 731-0153, Japan
| | - Hiroyuki Nishi
- Department of Pharmacy, Yasuda Women's University, 13-6-1 Yasuhigashi, Asaminamiku, Hiroshima, 731-0153, Japan
| | - Akira Tokumura
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima, 770-8505, Japan; Department of Pharmacy, Yasuda Women's University, 13-6-1 Yasuhigashi, Asaminamiku, Hiroshima, 731-0153, Japan.
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Chiang JC, Chen WM, Lin KH, Hsia K, Ho YH, Lin YC, Shen TL, Lu JH, Chen SK, Yao CL, Chen BPC, Lee H. Lysophosphatidic acid receptors 2 and 3 regulate erythropoiesis at different hematopoietic stages. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1866:158818. [PMID: 33035680 DOI: 10.1016/j.bbalip.2020.158818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/17/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022]
Abstract
Hematopoiesis, the complex developmental process that forms blood components and replenishes the blood system, involves multiple intracellular and extracellular mechanisms. We previously demonstrated that lysophosphatidic acid (LPA), a lipid growth factor, has opposing regulatory effects on erythrocyte differentiation through activation of LPA receptors 2 and 3; yet the mechanisms underlying this process remain unclear. In this study, LPA2 is observed that highly expressed in common myeloid progenitors (CMP) in murine myeloid cells, whereas the expression of LPA3 displaces in megakaryocyte-erythroid progenitors (MEP) of later stage of myeloid differentiation. Therefore, we hypothesized that the switching expression of LPA2 and LPA3 determine the hematic homeostasis of mammalian megakaryocytic-erythroid lineage. In vitro colony-forming unit assays of murine progenitors reveal that LPA2 agonist GRI reduces the erythroblast differentiation potential of CMP. In contrast, LPA3 agonist OMPT increases the production of erythrocytes from megakaryocyte-erythrocyte progenitor cells (MEP). In addition, treatment with GRI reduces the erythroid, CMP, and MEP populations in mice, indicating that LPA2 predominantly inhibits myeloid differentiation at an early stage. In contrast, activation of LPA3 increases the production of terminally differentiated erythroid cells through activation of erythropoietic transcriptional factor. We also demonstrate that the LPA3 signaling is essential for restoration of phenylhydrazine (PHZ)-induced acute hemolytic anemia in mice and correlates to erythropoiesis impairment of Hutchinson-Gilford progeria Symptom (HGPS) premature aging expressed K562 model. Our results reveal the distinct roles of LPA2 and LPA3 at different stages of hematopoiesis in vivo, providing potentiated therapeutic strategies of anemia treatment.
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Affiliation(s)
- Jui-Chung Chiang
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Wei-Min Chen
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Kuan-Hung Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Kai Hsia
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ya-Hsuan Ho
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge, United Kingdom
| | - Yueh-Chien Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan; Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Jen-Her Lu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Surgery, Medicine & Pediatrics, School of Medicine, National Defense Medical Center, Taipei, Taiwan; Department of Pediatrics, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Kuo Chen
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
| | - Chao-Ling Yao
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
| | - Benjamin P C Chen
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Hsinyu Lee
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Center for Biotechnology, National Taiwan University, Taipei, Taiwan; Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan; Angiogenesis Research Center, National Taiwan University, Taipei, Taiwan; Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan.
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Tsutsumi T, Matsuda R, Morito K, Kawabata K, Yokota M, Nikawadori M, Inoue-Fujiwara M, Kawashima S, Hidaka M, Yamamoto T, Yamazaki N, Tanaka T, Shinohara Y, Nishi H, Tokumura A. Identification of human glycerophosphodiesterase 3 as an ecto phospholipase C that converts the G protein-coupled receptor 55 agonist lysophosphatidylinositol to bioactive monoacylglycerols in cultured mammalian cells. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158761. [PMID: 32629025 DOI: 10.1016/j.bbalip.2020.158761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 12/30/2022]
Abstract
A family of glycerol-based lysolipid mediators comprises lysophosphatidic acid as a representative phospholipidic member but also a monoacylglycerol as a non-phosphorus-containing member. These critical lysolipid mediators are known to be produced from different lysophospholipids by actions of lysophospholipases C and D in mammals. Some members of the glycerophosphodiesterase (GDE) family have attracted recent attention due to their phospholipid-metabolizing activity. In this study, we found selective depletion of lysophosphatidylinositol among lysophospholipids in the culture medium of COS-7 cells transfected with a vector containing glycerophosphodiester phosphodiesterase 2 (GDPD2, GDE3). Thin-layer chromatography and liquid chromatography-tandem mass spectrometry of lipids extracted from GDE3-transfected COS-7 cells exposed to fluorescent analogs of phosphatidylinositol (PI) revealed that GDE3 acted as an ecto-type lysophospholipase C preferring endogenous lysophosphatidylinositol and PI having a long-chain acyl and a short-chain acyl group rather than endogenous PI and its fluorescent analog having two long chain acyl groups. In MC3T3-E1 cells cultured with an osteogenic or mitogenic medium, mRNA expression of GDE3 was increased by culturing in 10% fetal bovine serum for several days, concomitant with increased activity of ecto-lysophospholipase C, converting arachidonoyl-lysophosphatidylinositol, a physiological agonist of G protein-coupled receptor 55, to arachidonoylglycerol, a physiological agonist of cannabinoid receptors 1 and 2. We suggest that GDE3 acts as an ecto-lysophospholipase C, by switching signaling from lysophosphatidylinositol to that from arachidonoylglycerol in an opposite direction in mouse bone remodeling.
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Affiliation(s)
- Toshihiko Tsutsumi
- Graduate School of Clinical Pharmacy, Kyushu University of Health and Welfare, 1714-1 Yoshinomachi, Nobeoka 882-8508, Japan
| | - Risa Matsuda
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Katsuya Morito
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Kohei Kawabata
- Faculty of Pharmacy, Yasuda Women's University, 6-13-1 Yasuhigashi, Asaminami-ku, Hiroshima 731-0153, Japan
| | - Miho Yokota
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Miki Nikawadori
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Manami Inoue-Fujiwara
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Satoshi Kawashima
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan; Institute of Advanced Medical Sciences, Tokushima University, Kuramotocho 3, Tokushima 770-8503, Japan
| | - Mayumi Hidaka
- Faculty of Pharmacy, Yasuda Women's University, 6-13-1 Yasuhigashi, Asaminami-ku, Hiroshima 731-0153, Japan
| | - Takenori Yamamoto
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan; Institute of Advanced Medical Sciences, Tokushima University, Kuramotocho 3, Tokushima 770-8503, Japan
| | - Naoshi Yamazaki
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Tamotsu Tanaka
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan; Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8502, Japan
| | - Yasuo Shinohara
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan; Institute of Advanced Medical Sciences, Tokushima University, Kuramotocho 3, Tokushima 770-8503, Japan
| | - Hiroyuki Nishi
- Faculty of Pharmacy, Yasuda Women's University, 6-13-1 Yasuhigashi, Asaminami-ku, Hiroshima 731-0153, Japan
| | - Akira Tokumura
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima 770-8505, Japan; Faculty of Pharmacy, Yasuda Women's University, 6-13-1 Yasuhigashi, Asaminami-ku, Hiroshima 731-0153, Japan.
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Yasuda D, Kobayashi D, Akahoshi N, Ohto-Nakanishi T, Yoshioka K, Takuwa Y, Mizuno S, Takahashi S, Ishii S. Lysophosphatidic acid-induced YAP/TAZ activation promotes developmental angiogenesis by repressing Notch ligand Dll4. J Clin Invest 2019; 129:4332-4349. [PMID: 31335323 DOI: 10.1172/jci121955] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Lysophosphatidic acid (LPA) is a potent lipid mediator with various biological functions mediated through six G protein-coupled receptors (GPCRs), LPA1-6. Previous studies have demonstrated that LPA-Gα12/Gα13 signaling plays an important role in embryonic vascular development. However, the responsible LPA receptors and underlying mechanisms are poorly understood. Here, we show a critical role of LPA4 and LPA6 in developmental angiogenesis. In mice, Lpa4;Lpa6 double knockout (DKO) embryos were lethal due to global vascular deficiencies, and endothelial cell (EC)-specific Lpa4;Lpa6 DKO retinas had impaired sprouting angiogenesis. Mechanistically, LPA activated the transcriptional regulators YAP and TAZ through LPA4/LPA6-mediated Gα12/Gα13-Rho-ROCK signaling in ECs. YAP/TAZ knockdown increased β-catenin- and Notch intracellular domain (NICD)-mediated endothelial expression of the Notch ligand delta-like 4 (DLL4). Fibrin gel sprouting assay revealed that LPA4/LPA6, Gα12/Gα13, or YAP/TAZ knockdown consistently blocked EC sprouting, which was rescued by a Notch inhibitor. Of note, the inhibition of Notch signaling also ameliorated impaired retinal angiogenesis in EC-specific Lpa4;Lpa6 DKO mice. Overall, these results suggest that the Gα12/Gα13-coupled receptors LPA4 and LPA6 synergistically regulate endothelial Dll4 expression through YAP/TAZ activation. This could in part account for the mechanism of YAP/TAZ-mediated developmental angiogenesis. Our findings provide a novel insight into the biology of GPCR-activated YAP/TAZ.
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Affiliation(s)
- Daisuke Yasuda
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Daiki Kobayashi
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Noriyuki Akahoshi
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Takayo Ohto-Nakanishi
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Kazuaki Yoshioka
- Department of Vascular Molecular Physiology, Kanazawa University Graduate School of Medicine, Ishikawa, Japan
| | - Yoh Takuwa
- Department of Vascular Molecular Physiology, Kanazawa University Graduate School of Medicine, Ishikawa, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, University of Tsukuba, Ibaraki, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, University of Tsukuba, Ibaraki, Japan
| | - Satoshi Ishii
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
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12
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Inoue M, Okamoto Y, Atsumi Y, Shiojiri M, Hidaka M, Tanaka T, Tsutsumi T, Shirasaka N, Tokumura A. Addition of high load of lysophosphatidic acid to standard and high-fat chows causes no significant changes of its circulating and peripheral tissue levels but affects body weight and visceral fat mass of mice. Biofactors 2018; 44:548-557. [PMID: 30368958 DOI: 10.1002/biof.1451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 01/17/2023]
Abstract
Oral administration of lysophosphatidic acid (LPA), a critical intercellular lipid mediator, exerts wound healing and antiulcer effects on gastrointestinal system. To evaluate effects of food-derived LPA on body homeostasis, we measured LPA levels by liquid chromatography-tandem mass spectrometry in chows, feces, plasma, liver, and visceral fat of mice fed a normal or high-fat chow supplemented with or without LPA-rich soybean phospholipids for 30 days. Reductions in daily body weight gains and visceral fat mass were mainly related to lower chow intake by mice fed the LPA-rich high-fat chow, whereas reduced body weight gains and fat mass were mainly related to decreased intestinal triacylglycerol absorption in mice fed LPA-rich chow. Our results showed no significant increase in plasma, liver, or adipose LPA levels, even if a quite high LPA concentration (2.0%) in chows was ingested daily, suggesting limited effects of food-derived LPA on the lumen side of the digestive tract. © 2018 BioFactors, 44(6):548-557, 2018.
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Affiliation(s)
- Manami Inoue
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Yoko Okamoto
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Yuta Atsumi
- Bio Chemicals Department, Enzymes Division, Product Development Section, Nagase ChemteX Corporation, Fukuchiyama, Kyoto, Japan
| | - Masatoshi Shiojiri
- Bio Chemicals Department, Enzymes Division, Product Development Section, Nagase ChemteX Corporation, Fukuchiyama, Kyoto, Japan
| | - Mayumi Hidaka
- Department of Life Sciences, Faculty of Pharmacy, Yasuda Women's University, Asaminamiku, Hiroshima, Japan
| | - Tamotsu Tanaka
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Toshihiko Tsutsumi
- Department of Pharmaceutics, Graduate School of Clinical Pharmacy, Kyushu University of Health and Welfare, Nobeoka, Japan
| | - Naoki Shirasaka
- Bio Chemicals Department, Enzymes Division, Product Development Section, Nagase ChemteX Corporation, Fukuchiyama, Kyoto, Japan
| | - Akira Tokumura
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
- Department of Life Sciences, Faculty of Pharmacy, Yasuda Women's University, Asaminamiku, Hiroshima, Japan
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13
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Wu PY, Lin YC, Huang YL, Chen WM, Chen CC, Lee H. Mechanisms of Lysophosphatidic Acid-Mediated Lymphangiogenesis in Prostate Cancer. Cancers (Basel) 2018; 10:cancers10110413. [PMID: 30384405 PMCID: PMC6266502 DOI: 10.3390/cancers10110413] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 10/28/2018] [Accepted: 10/29/2018] [Indexed: 11/16/2022] Open
Abstract
Prostate cancer (PCa) is the most common noncutaneous cancer in men worldwide. One of its major treatments is androgen deprivation therapy, but PCa frequently relapses as aggressive castration resistant local tumors and distal metastases. Hence, the development of novel agents or treatment modalities for advanced PCa is crucial. Many tumors, including PCa, first metastasize to regional lymph nodes via lymphatic vessels. Recent findings demonstrate that the bioactive lipid lysophosphatidic acid (LPA) promotes PCa progression by regulating vascular endothelial growth factor-C (VEGF-C), a critical mediator of tumor lymphangiogenesis and lymphatic metastasis. Many of the underlying molecular mechanisms of the LPA–VEGF-C axis have been described, revealing potential biomarkers and therapeutic targets that may aid in the diagnosis and treatment of advanced PCa. Herein, we review the literature that illustrates a functional role for LPA signaling in PCa progression. These discoveries may be especially applicable to anti-lymphangiogenic strategies for the prevention and therapy of metastatic PCa.
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Affiliation(s)
- Pei-Yi Wu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan.
| | - Yueh-Chien Lin
- Department of Life Sciences, National Taiwan University, Taipei 10617, Taiwan.
| | - Yuan-Li Huang
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan.
| | - Wei-Min Chen
- Department of Life Sciences, National Taiwan University, Taipei 10617, Taiwan.
| | - Chien-Chin Chen
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi 60002, Taiwan.
- Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan.
| | - Hsinyu Lee
- Department of Life Sciences, National Taiwan University, Taipei 10617, Taiwan.
- Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan.
- Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei 10617, Taiwan.
- Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan.
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14
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Sato A, Nakazawa K, Sugawara A, Yamazaki Y, Ebina K. The interaction of β 2-glycoprotein I with lysophosphatidic acid in platelet aggregation and blood clotting. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:1232-1241. [PMID: 30312773 DOI: 10.1016/j.bbapap.2018.10.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 10/01/2018] [Accepted: 10/08/2018] [Indexed: 02/09/2023]
Abstract
β2-Glycoprotein I (β2-GPI) is a plasma protein that binds to oxidized low-density lipoprotein (LDL) and negatively charged substances, and inhibits platelet activation and blood coagulation. In this study, we investigated the interaction of β2-GPI with a negatively charged lysophosphatidic acid (LPA) in platelet aggregation and blood clotting. Two negatively charged lysophospholipids, LPA and lysophosphatidylserine, specifically inhibited the binding of β2-GPI to oxidized LDL in a concentration-dependent manner. Intrinsic tryptophan fluorescence studies demonstrated that emission intensity of β2-GPI decreases in an LPA-concentration-dependent manner without a shift in wavelength maxima. LPA specifically induced the aggregation of β2-GPI in phosphate-buffered saline, and in incubated plasma and serum, both of which are known to accumulate LPA by the action of lecithin-cholesterol acyltransferase and lysophospholipase D/autotaxin. β2-GPI aggregated by LPA did not inhibit activated von Willebrand factor-induced aggregation, and did not prolong the activated partial thromboplastin time in blood plasma, in contrast to non-aggregated β2-GPI. These results suggest that β2-GPI aggregated by the binding to LPA fails to inhibit platelet aggregation and blood clotting in contrast to non-aggregated β2-GPI.
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Affiliation(s)
- Akira Sato
- Faculty of Pharmacy, Iwaki Meisei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima 970-8551, Japan.
| | - Keiju Nakazawa
- Faculty of Pharmacy, Iwaki Meisei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima 970-8551, Japan
| | - Ayano Sugawara
- Faculty of Pharmacy, Iwaki Meisei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima 970-8551, Japan
| | - Yoji Yamazaki
- Faculty of Pharmacy, Iwaki Meisei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima 970-8551, Japan
| | - Keiichi Ebina
- Faculty of Pharmacy, Iwaki Meisei University, 5-5-1, Chuodai-Iino, Iwaki, Fukushima 970-8551, Japan
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15
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Kurabayashi N, Tanaka A, Nguyen MD, Sanada K. The LPA-LPA4 axis is required for establishment of bipolar morphology and radial migration of newborn cortical neurons. Development 2018; 145:145/17/dev162529. [DOI: 10.1242/dev.162529] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 07/30/2018] [Indexed: 11/20/2022]
Abstract
ABSTRACT
Newborn neurons in the developing neocortex undergo radial migration, a process that is coupled with their precise passage from multipolar to bipolar shape. The cell-extrinsic signals that govern this transition are, however, poorly understood. Here, we find that lysophosphatidic acid (LPA) signaling contributes to the establishment of a bipolar shape in mouse migratory neurons through LPA receptor 4 (LPA4). LPA4 is robustly expressed in migratory neurons. LPA4-depleted neurons show impaired multipolar-to-bipolar transition and become arrested in their migration. Further, LPA4-mediated LPA signaling promotes formation of the pia-directed process in primary neurons overlaid on neocortical slices. In addition, LPA4 depletion is coupled with altered actin organization as well as with destabilization of the F-actin-binding protein filamin A (FlnA). Finally, overexpression of FlnA rescues the morphology and migration defects of LPA4-depleted neurons. Thus, the LPA-LPA4 axis regulates bipolar morphogenesis and radial migration of newborn cortical neurons via remodeling of the actin cytoskeleton.
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Affiliation(s)
- Nobuhiro Kurabayashi
- Molecular Genetics Research Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Aiki Tanaka
- Molecular Genetics Research Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Minh Dang Nguyen
- Hotchkiss Brain Institute, University of Calgary, Departments of Clinical Neurosciences, Cell Biology and Anatomy, Biochemistry and Molecular Biology, 3330 Hospital Drive NW, HMR 151, Calgary, Alberta T2N4N1, Canada
| | - Kamon Sanada
- Molecular Genetics Research Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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16
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Ramesh S, Govindarajulu M, Suppiramaniam V, Moore T, Dhanasekaran M. Autotaxin⁻Lysophosphatidic Acid Signaling in Alzheimer's Disease. Int J Mol Sci 2018; 19:ijms19071827. [PMID: 29933579 PMCID: PMC6073975 DOI: 10.3390/ijms19071827] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/12/2018] [Accepted: 06/18/2018] [Indexed: 12/14/2022] Open
Abstract
The brain contains various forms of lipids that are important for maintaining its structural integrity and regulating various signaling cascades. Autotaxin (ATX) is an ecto-nucleotide pyrophosphatase/phosphodiesterase-2 enzyme that hydrolyzes extracellular lysophospholipids into the lipid mediator lysophosphatidic acid (LPA). LPA is a major bioactive lipid which acts through G protein-coupled receptors (GPCRs) and plays an important role in mediating cellular signaling processes. The majority of synthesized LPA is derived from membrane phospholipids through the action of the secreted enzyme ATX. Both ATX and LPA are highly expressed in the central nervous system. Dysfunctional expression and activity of ATX with associated changes in LPA signaling have recently been implicated in the pathogenesis of Alzheimer’s disease (AD). This review focuses on the current understanding of LPA signaling, with emphasis on the importance of the autotaxin–lysophosphatidic acid (ATX–LPA) pathway and its alterations in AD and a brief note on future therapeutic applications based on ATX–LPA signaling.
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Affiliation(s)
- Sindhu Ramesh
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL 36849, USA.
| | - Manoj Govindarajulu
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL 36849, USA.
| | - Vishnu Suppiramaniam
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL 36849, USA.
| | - Timothy Moore
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL 36849, USA.
| | - Muralikrishnan Dhanasekaran
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL 36849, USA.
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17
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Yamashita A, Hayashi Y, Matsumoto N, Nemoto-Sasaki Y, Koizumi T, Inagaki Y, Oka S, Tanikawa T, Sugiura T. Coenzyme-A-Independent Transacylation System; Possible Involvement of Phospholipase A2 in Transacylation. BIOLOGY 2017; 6:biology6020023. [PMID: 28358327 PMCID: PMC5485470 DOI: 10.3390/biology6020023] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 03/23/2017] [Accepted: 03/24/2017] [Indexed: 11/29/2022]
Abstract
The coenzyme A (CoA)-independent transacylation system catalyzes fatty acid transfer from phospholipids to lysophospholipids in the absence of cofactors such as CoA. It prefers to use C20 and C22 polyunsaturated fatty acids such as arachidonic acid, which are esterified in the glycerophospholipid at the sn-2 position. This system can also acylate alkyl ether-linked lysophospholipids, is involved in the enrichment of arachidonic acid in alkyl ether-linked glycerophospholipids, and is critical for the metabolism of eicosanoids and platelet-activating factor. Despite their importance, the enzymes responsible for these reactions have yet to be identified. In this review, we describe the features of the Ca2+-independent, membrane-bound CoA-independent transacylation system and its selectivity for arachidonic acid. We also speculate on the involvement of phospholipase A2 in the CoA-independent transacylation reaction.
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Affiliation(s)
- Atsushi Yamashita
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Yasuhiro Hayashi
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Naoki Matsumoto
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Yoko Nemoto-Sasaki
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Takanori Koizumi
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Yusuke Inagaki
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Saori Oka
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Takashi Tanikawa
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
| | - Takayuki Sugiura
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo 173-8605, Japan.
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18
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Lorke DE, Stegmeier-Petroianu A, Petroianu GA. Biologic activity of cyclic and caged phosphates: a review. J Appl Toxicol 2016; 37:13-22. [DOI: 10.1002/jat.3369] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 07/01/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Dietrich E. Lorke
- Department of Cellular Biology & Pharmacology, Herbert Wertheim College of Medicine; Florida International University; Miami Florida USA
| | - Anka Stegmeier-Petroianu
- Mannheim Institute of Public Health, Social and Preventive Medicine; Medical Faculty Mannheim, Heidelberg University; D-68167 Mannheim Germany
| | - Georg A. Petroianu
- Department of Cellular Biology & Pharmacology, Herbert Wertheim College of Medicine; Florida International University; Miami Florida USA
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19
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Autotaxin, Pruritus and Primary Biliary Cholangitis (PBC). Autoimmun Rev 2016; 15:795-800. [PMID: 27019050 DOI: 10.1016/j.autrev.2016.03.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 03/17/2016] [Indexed: 01/14/2023]
Abstract
Autotaxin (ATX) is a 125-kD type II ectonucleotide pyrophosphatase/phosphodiesterase (ENPP2 or NPP2) originally discovered as an unknown "autocrine motility factor" in human melanoma cells. In addition to its pyrophosphatase/phosphodiesterase activities ATX has lysophospholipase D (lysoPLD) activity, catalyzing the conversion of lysophosphatidylcholine (LPC) into lysophosphatidic acid (LPA). ATX is the only ENPP family member with lysoPLD activity and it produces most of the LPA in circulation. In support of this, ATX heterozygous mice have 50% of normal LPA plasma levels. The ATX-LPA signaling axis plays an important role in both normal physiology and disease pathogenesis and recently has been linked to pruritus in chronic cholestatic liver diseases, including primary biliary cholangitis (PBC). Several lines of evidence have suggested that a circulating puritogen is responsible, but the identification of the molecule has yet to be definitively identified. In contrast, plasma ATX activity is strongly associated with pruritus in PBC, suggesting a targetable molecule for treatment. We review herein the biochemistry of ATX and the rationale for its role in pruritus.
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20
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Shim GH, Kim HS, Kim ES, Lee KY, Kim EK, Choi JH. Expression of autotaxin and lysophosphatidic acid receptors 1 and 3 in the developing rat lung and in response to hyperoxia. Free Radic Res 2015; 49:1362-70. [PMID: 26178778 DOI: 10.3109/10715762.2015.1073850] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We sought to evaluate lysophosphatidic acid (LPA) signaling improvement in lung development by assessing the expression of autotaxin and LPA receptor 1 and 3 (LPAR1 and LPAR3) in the neonatal rat lung during normal perinatal development and in response to hyperoxia. In the developmental study, rats were sacrificed on days 17, 19, and 21 of gestation; on postnatal days 1, 4, and 7; and at adulthood (postnatal 9 weeks). In the hyperoxia study, 42 postnatal 4-day-old rat pups were divided into seven groups and exposed to either 85% O2 for 24, 72, or 120 h or room air for 0, 24, 72, or 120 h. The rats were then euthanized after 0, 24, 72, and 120 h of exposure. Immunofluorescence demonstrated that autotaxin, LPAR1, and LPAR3 proteins were broadly colocalized in airway epithelial cells, but mainly distributed in vascular endothelial and mesenchymal cells during the first postnatal week. The expression of autotaxin, LPAR1, and LPAR3 were increased during late gestation and then decreased after birth. Autotaxin expression and enzymatic activity were significantly increased at 72 and 120 h after exposure to hyperoxia. LPAR1 and LPAR3 expression was also increased after 120 h of hyperoxic exposure. These findings suggest that LPA-associated molecules were upregulated at birth and induced by hyperoxia in the developing rat lung. Therefore, the LPA pathway may be involved in normal lung development, including vascular development, as well as wound-healing processes of injured neonatal lung tissue, which is at risk of neonatal hyperoxic acute lung injury.
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Affiliation(s)
- G H Shim
- a Department of Pediatrics , Inje University Sanggye Paik Hospital , Seoul , Korea
| | - H-S Kim
- b Department of Pediatrics , Seoul National University College of Medicine , Seoul , Korea
| | - E S Kim
- c Department of Pediatrics , Kangwon National University Hospital, Kangwon National University School of Medicine , Chuncheon , Korea
| | - K-Y Lee
- d Clinical Research Institute of Seoul National University Hospital , Seoul , Korea
| | - E-K Kim
- b Department of Pediatrics , Seoul National University College of Medicine , Seoul , Korea
| | - J-H Choi
- b Department of Pediatrics , Seoul National University College of Medicine , Seoul , Korea
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21
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LPA Promotes T Cell Recruitment through Synthesis of CXCL13. Mediators Inflamm 2015; 2015:248492. [PMID: 26339130 PMCID: PMC4539179 DOI: 10.1155/2015/248492] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 12/01/2014] [Accepted: 12/03/2014] [Indexed: 02/05/2023] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive phospholipid playing an important role in various inflammatory diseases by inducing expression and secretion of many inflammatory cytokines/chemokines. Here we report in a murine air pouch model of inflammation that LPA induced CXCL13 secretion in a time-dependent manner and with exacerbation of the response when LPA was administered after a pretreatment with TNF-α, a key inflammatory cytokine. LPA mediates recruitment of leukocytes, including that of CD3+ cells into unprimed and TNF-α-primed air pouches. CXCL13 neutralization using a blocking antibody injected into air pouches prior to administration of LPA into TNF-α-primed air pouches decreased CD3+ cell influx. Our data highlight that LPA-mediated CXCL13 secretion plays a role in T cell recruitment and participates in regulation of the inflammatory response.
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22
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Igarashi H, Akahoshi N, Ohto-Nakanishi T, Yasuda D, Ishii S. The lysophosphatidic acid receptor LPA4 regulates hematopoiesis-supporting activity of bone marrow stromal cells. Sci Rep 2015; 5:11410. [PMID: 26090649 PMCID: PMC4473687 DOI: 10.1038/srep11410] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 05/26/2015] [Indexed: 12/23/2022] Open
Abstract
Lysophosphatidic acid (LPA) is a pleiotropic lipid mediator that acts through G protein-coupled receptors (LPA1-6). Although several biological roles of LPA4 are becoming apparent, its role in hematopoiesis has remained unknown. Here, we show a novel regulatory role for LPA4 in hematopoiesis. Lpar4 mRNA was predominantly expressed in mouse bone marrow (BM) PDGFRα+ stromal cells, known as the components of the hematopoietic stem/progenitor cell (HSPC) niche. Compared with wild-type mice, LPA4-deficient mice had reduced HSPC numbers in the BM and spleen and were hypersusceptible to myelosuppression, most likely due to impairments in HSPC recovery and stem cell factor production in the BM. Analysis of reciprocal BM chimeras (LPA4-deficient BM into wild-type recipients and vice versa) indicated that stromal cells likely account for these phenotypes. Consistently, LPA4-deficient BM stromal cells showed downregulated mRNA expression of stem cell factor and tenascin-c in vitro. Taken together, these results suggest a critical and novel role for the LPA/LPA4 axis in regulating BM stromal cells.
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Affiliation(s)
- Hidemitsu Igarashi
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Noriyuki Akahoshi
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Takayo Ohto-Nakanishi
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Daisuke Yasuda
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Satoshi Ishii
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
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23
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Tokuhara Y, Kurano M, Shimamoto S, Igarashi K, Nojiri T, Kobayashi T, Masuda A, Ikeda H, Nagamatsu T, Fujii T, Aoki J, Yatomi Y. A New Enzyme Immunoassay for the Quantitative Determination of Classical Autotaxins (ATXα, ATXβ, and ATXγ) and Novel Autotaxins (ATXδ and ATXε). PLoS One 2015; 10:e0130074. [PMID: 26083365 PMCID: PMC4471343 DOI: 10.1371/journal.pone.0130074] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 05/15/2015] [Indexed: 12/30/2022] Open
Abstract
Background Autotaxin (ATX) is a secreted enzyme that converts lysophosphatidylcholine to lysophosphatidic acid, a potent bioactive lipid mediator, through its lysophospholipase D activity. Although five alternative splicing isoforms of ATX have been identified as ATXα, ATXβ, ATXγ, ATXδ, and ATXε and the expression patterns of each isoform differ among several tissues, the clinical significance of each isoform remains to be elucidated. Methods Anti-ATXβ and anti-ATXδ monoclonal antibodies were produced by immunization with recombinant human ATXβ and ATXδ expressed using a baculovirus system, respectively. We then developed enzyme immunoassays to measure the serum concentrations of “classical ATX” (ATXα, ATXβ, and ATXγ) and “novel ATX” (ATXδ and ATXε) antigens and evaluated the usefulness of these assays using human serum samples. Results The with-run and between-run precision, interference, detection limit, and linearity studies for the present assay were well validated. In healthy subjects, the serum concentrations of classical ATX and novel ATX were significantly (P < 0.01) higher in women than in men, while the ratios of classical ATX or novel ATX to total ATX were not different between women and men. The concentrations of both classical ATX and novel ATX in normal pregnant subjects and patients with chronic liver diseases or follicular lymphoma were significantly higher than those in healthy subjects, while the ratio of both ATX isoforms to total ATX did not vary among these groups. Conclusions We have developed a new enzyme immunoassay to determine the concentrations of classical ATX and novel ATX in human serum. These assays may be helpful for elucidating the distinct functional roles of each ATX isoform, which are largely unknown at present.
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Affiliation(s)
- Yasunori Tokuhara
- Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan
- CREST, Japan Science and Technology Corporation (JST), Saitama, Japan
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa, Japan
| | - Makoto Kurano
- CREST, Japan Science and Technology Corporation (JST), Saitama, Japan
- Department of Clinical Laboratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Satoshi Shimamoto
- Bioscience Division, Reagent Development Department, AIA Research Group, TOSOH Corporation, Kanagawa, Japan
| | - Koji Igarashi
- Bioscience Division, Reagent Development Department, AIA Research Group, TOSOH Corporation, Kanagawa, Japan
| | - Takahiro Nojiri
- Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan
| | - Tamaki Kobayashi
- Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan
| | - Akiko Masuda
- CREST, Japan Science and Technology Corporation (JST), Saitama, Japan
- Department of Clinical Laboratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hitoshi Ikeda
- CREST, Japan Science and Technology Corporation (JST), Saitama, Japan
- Department of Clinical Laboratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Junken Aoki
- CREST, Japan Science and Technology Corporation (JST), Saitama, Japan
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Miyagi, Japan
| | - Yutaka Yatomi
- Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan
- CREST, Japan Science and Technology Corporation (JST), Saitama, Japan
- Department of Clinical Laboratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- * E-mail:
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González de San Román E, Manuel I, Giralt MT, Chun J, Estivill-Torrús G, Rodríguez de Fonseca F, Santín LJ, Ferrer I, Rodríguez-Puertas R. Anatomical location of LPA1 activation and LPA phospholipid precursors in rodent and human brain. J Neurochem 2015; 134:471-85. [PMID: 25857358 DOI: 10.1111/jnc.13112] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/02/2015] [Accepted: 03/31/2015] [Indexed: 12/29/2022]
Abstract
Lysophosphatidic acid (LPA) is a signaling molecule that binds to six known G protein-coupled receptors: LPA1 -LPA6 . LPA evokes several responses in the CNS, including cortical development and folding, growth of the axonal cone and its retraction process. Those cell processes involve survival, migration, adhesion proliferation, differentiation, and myelination. The anatomical localization of LPA1 is incompletely understood, particularly with regard to LPA binding. Therefore, we have used functional [(35) S]GTPγS autoradiography to verify the anatomical distribution of LPA1 binding sites in adult rodent and human brain. The greatest activity was observed in myelinated areas of the white matter such as corpus callosum, internal capsule and cerebellum. MaLPA1 -null mice (a variant of LPA1 -null) lack [(35) S]GTPγS basal binding in white matter areas, where the LPA1 receptor is expressed at high levels, suggesting a relevant role of the activity of this receptor in the most myelinated brain areas. In addition, phospholipid precursors of LPA were localized by MALDI-IMS in both rodent and human brain slices identifying numerous species of phosphatides and phosphatidylcholines. Both phosphatides and phosphatidylcholines species represent potential LPA precursors. The anatomical distribution of these precursors in rodent and human brain may indicate a metabolic relationship between LPA and LPA1 receptors. Lysophosphatidic acid (LPA) is a signaling molecule that binds to six known G protein-coupled receptors (GPCR), LPA1 to LPA6 . LPA evokes several responses in the central nervous system (CNS), including cortical development and folding, growth of the axonal cone and its retraction process. We used functional [(35) S]GTPγS autoradiography to verify the anatomical distribution of LPA1 -binding sites in adult rodent and human brain. The distribution of LPA1 receptors in rat, mouse and human brains show the highest activity in white matter myelinated areas. The basal and LPA-evoked activities are abolished in MaLPA1 -null mice. The phospholipid precursors of LPA are localized by MALDI-IMS. The anatomical distribution of LPA precursors in rodent and human brain suggests a relationship with functional LPA1 receptors.
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Affiliation(s)
| | - Iván Manuel
- Department of Pharmacology, Faculty of Medicine and Odontology, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - María Teresa Giralt
- Department of Pharmacology, Faculty of Medicine and Odontology, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Jerold Chun
- Molecular and Cellular Neuroscience Department, Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, California, USA
| | - Guillermo Estivill-Torrús
- UGC Intercentros de Neurociencias y UGC de Salud Mental, Instituto de Investigación Biomédica de Malaga (IBIMA), Hospitales Universitarios Regional de Málaga y Virgen de la Victoria, Universidad de Málaga, Spain
| | - Fernando Rodríguez de Fonseca
- UGC Intercentros de Neurociencias y UGC de Salud Mental, Instituto de Investigación Biomédica de Malaga (IBIMA), Hospitales Universitarios Regional de Málaga y Virgen de la Victoria, Universidad de Málaga, Spain
| | - Luis Javier Santín
- Departmento de Psicobiología y Metodología de las Ciencias del Comportamiento. Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad of Málaga, Málaga, Spain
| | - Isidro Ferrer
- Institute of Neuropathology, University Hospital Bellvitge, University of Barcelona, Ciberned, Spain
| | - Rafael Rodríguez-Puertas
- Department of Pharmacology, Faculty of Medicine and Odontology, University of the Basque Country, UPV/EHU, Leioa, Spain
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Llona-Minguez S, Ghassemian A, Helleday T. Lysophosphatidic acid receptor (LPAR) modulators: The current pharmacological toolbox. Prog Lipid Res 2015; 58:51-75. [DOI: 10.1016/j.plipres.2015.01.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/15/2015] [Accepted: 01/20/2015] [Indexed: 12/17/2022]
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Jiang T, Lu N, Yang J, Hang Y, Wang J, Zhao P, Hua J. Dibenzo[a,c]phenazine-derived near-infrared fluorescence biosensor for detection of lysophosphatidic acid based on aggregation-induced emission. RSC Adv 2015. [DOI: 10.1039/c5ra21408d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A new near-infrared fluorescence turn-on detector forLPAis developed by taking advantage of aggregation-induced emission behaviour. It exhibits good sensitivity and selectivity toLPAwith the limit of detection of 4.47 × 10−7M.
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Affiliation(s)
- Tao Jiang
- Key Laboratory for Advanced Materials
- Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Niannian Lu
- Key Laboratory for Advanced Materials
- Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Ji Yang
- Key Laboratory for Advanced Materials
- Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Yandi Hang
- Key Laboratory for Advanced Materials
- Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Jian Wang
- Key Laboratory for Advanced Materials
- Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Ping Zhao
- Key Laboratory for Advanced Materials
- Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Jianli Hua
- Key Laboratory for Advanced Materials
- Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
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Aikawa S, Hashimoto T, Kano K, Aoki J. Lysophosphatidic acid as a lipid mediator with multiple biological actions. J Biochem 2014; 157:81-9. [PMID: 25500504 DOI: 10.1093/jb/mvu077] [Citation(s) in RCA: 172] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Lysophosphatidic acid (LPA) is one of the simplest glycerophospholipids with one fatty acid chain and a phosphate group as a polar head. Although LPA had been viewed just as a metabolic intermediate in de novo lipid synthetic pathways, it has recently been paid much attention as a lipid mediator. LPA exerts many kinds of cellular processes, such as cell proliferation and smooth muscle contraction, through cognate G protein-coupled receptors. Because lipids are not coded by the genome directly, it is difficult to know their patho- and physiological roles. However, recent studies have identified several key factors mediating the biological roles of LPA, such as receptors and producing enzymes. In addition, studies of transgenic and gene knockout animals for these LPA-related genes, have revealed the biological significance of LPA. In this review we will summarize recent advances in the studies of LPA production and its roles in both physiological and pathological conditions.
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Affiliation(s)
- Shizu Aikawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai 980-8578, Japan and CREST, Japan Science and Technology Corporation, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takafumi Hashimoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai 980-8578, Japan and CREST, Japan Science and Technology Corporation, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Kuniyuki Kano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai 980-8578, Japan and CREST, Japan Science and Technology Corporation, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Junken Aoki
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai 980-8578, Japan and CREST, Japan Science and Technology Corporation, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai 980-8578, Japan and CREST, Japan Science and Technology Corporation, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
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Brunnert D, Sztachelska M, Bornkessel F, Treder N, Wolczynski S, Goyal P, Zygmunt M. Lysophosphatidic acid and sphingosine 1-phosphate metabolic pathways and their receptors are differentially regulated during decidualization of human endometrial stromal cells. Mol Hum Reprod 2014; 20:1016-25. [DOI: 10.1093/molehr/gau051] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Potentials of the Circulating Pruritogenic Mediator Lysophosphatidic Acid in Development of Allergic Skin Inflammation in Mice. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 184:1593-603. [DOI: 10.1016/j.ajpath.2014.01.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 01/05/2014] [Accepted: 01/16/2014] [Indexed: 01/03/2023]
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Acyltransferases and transacylases that determine the fatty acid composition of glycerolipids and the metabolism of bioactive lipid mediators in mammalian cells and model organisms. Prog Lipid Res 2014; 53:18-81. [DOI: 10.1016/j.plipres.2013.10.001] [Citation(s) in RCA: 160] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 07/20/2013] [Accepted: 10/01/2013] [Indexed: 12/21/2022]
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Saito K. Reminiscence of phospholipase B in Penicillium notatum. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2014; 90:333-46. [PMID: 25391318 PMCID: PMC4324925 DOI: 10.2183/pjab.90.333] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 09/02/2014] [Indexed: 06/04/2023]
Abstract
Since the phospholipase B (PLB) was reported as a deacylase of both lecithin and lysolecithin yielding fatty acids and glycerophosphocholine (GPC), there was a question as to whether it is a single enzyme or a mixture of a phospholipase A2 (PLA2) and a lysophospholipase (LPL). We purified the PLB in Penicillium notatum and showed that it catalyzed deacylation of sn-1 and sn-2 fatty acids of 1,2-diacylphospholipids and also sn-1 or sn-2 fatty acids of 1- or 2-monoacylphospholipids (lysophospholipids). Further, it also has a monoacyllipase activity. The purified PLB is a glycoprotein with m.w. of 91,300. The sugar moiety is M9 only and the protein moiety consists of 603 amino acids. PLB, different from PLA2, shows other enzymatic activities, such as transacylase, lipase and acylesterase. PLB activity is influenced by various substances, e.g. detergents, deoxycholate, diethylether, Fe(3+), and endogenous protease. Therefore, PLB might have broader roles than PLA2 in vivo. The database shows an extensive sequence similarity between P. notatum PLB and fungal PLB, cPLA2 and patatin, suggesting a homologous relationship. The catalytic triad of cPLA2, Ser, Asp and Arg, is also present in P. notatum PLB. Other related PLBs, PLB/Lipases are discussed.
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Tsutsumi T, Ishihara A, Yamamoto A, Asaji H, Yamakawa S, Tokumura A. The potential protective role of lysophospholipid mediators in nephrotoxicity induced by chronically exposed cadmium. Food Chem Toxicol 2013; 65:52-62. [PMID: 24361405 DOI: 10.1016/j.fct.2013.12.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 12/09/2013] [Accepted: 12/12/2013] [Indexed: 12/17/2022]
Abstract
Cadmium is a hazardous metal whose chronic exposure induces renal failure due to fibrosis, but the mechanisms are not well known. In this study we analyzed the molecular species of lysophosphatidic acid (LPA) and related phospholipids, together with their metabolic enzyme activity, in plasma from Wistar rats exposed up to 300ppm Cd(2+) in drinking water for 114days. Exposure of 300ppm Cd(2+) for 114days enhanced autotoxin (ATX)/lysophospholipase D activity, but significantly lowered the total levels of LPA and lysophosphatidylethanolamine. Interestingly, the total level of sphingosine-1-phosphate (S1P) was elevated dose-dependently by Cd(2+). Cultured rat kidney-derived interstitial fibroblast cells, NRK49F cells and proximal epithelial cells, NRK52E cells, were both responsive to the protective action of LPA or S1P against Cd(2+) toxicity. The former cell expresses ATX RNA. In conclusion, the elevation of LPA-producing enzyme activity and S1P concentrations in plasma after exposure of rats to Cd(2+) would protect from the renal toxicity of Cd(2+).
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Affiliation(s)
- Toshihiko Tsutsumi
- Department of Pharmaceutical Sciences, Kyushu University of Health and Welfare, Japan
| | - Akira Ishihara
- Department of Anatomic Pathology, Prefectural Nobeoka Hospital, Miyazaki, Japan
| | - Aimi Yamamoto
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, University of Tokushima Graduate School, Japan
| | - Hiroki Asaji
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, University of Tokushima Graduate School, Japan
| | - Syougo Yamakawa
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, University of Tokushima Graduate School, Japan
| | - Akira Tokumura
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, University of Tokushima Graduate School, Japan.
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Jo JW, Jee BC, Suh CS, Kim SH. Addition of lysophosphatidic acid to mouse oocyte maturation media can enhance fertilization and developmental competence. Hum Reprod 2013; 29:234-41. [PMID: 24293550 DOI: 10.1093/humrep/det427] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
STUDY QUESTION Does exposure to lysophosphatidic acid (LPA) during in vitro maturation (IVM) enhance the maturation and developmental competence of mouse oocytes? SUMMARY ANSWER Supplementation of IVM medium with 30 μM LPA enhanced the developmental competence of in vitro matured oocytes and so made them more comparable to in vivo matured control oocytes. WHAT IS KNOWN ALREADY LPA is a small phospholipid that acts as an extracellular signaling molecule by binding to and activating at least five G protein-coupled receptors. LPA has various biological actions, with both developmental and physiological effects. STUDY DESIGN, SIZE, DURATION During IVM, LPA at six different doses (0, 1, 10, 30, 50 or 100 μM) was added into the TCM-199 medium. After maturation, the developmental competence and other parameters of the oocytes were assessed. PARTICIPANTS/MATERIALS, SETTING, METHODS Immature GV stage oocytes from 5- to 6-week-old female BDF-1 mice were incubated for 17-18 h in IVM medium containing 0, 1, 10 or 30 μM LPA and then either fertilized in vitro with epididymal sperm, or assessed for spindle morphology, mitochondrial membrane potential (ΔΨm) or the mRNA expression of a meiotic checkpoint gene (Mad2), a microtubule structure gene (Hook1), two maternally derived genes (Mater and Hsf1) and an apoptosis-related gene (Caspase6). The fertilized embryos were grown in vitro to assess blastocyst-formation rates, differential cell counts and apoptosis. MAIN RESULTS AND THE ROLE OF CHANCE Rates of maturation, fertilization and blastocyst formation and hatching were significantly higher in the 30 μM LPA-supplemented group (94.3, 96.3, 79.1 and 51.3%, respectively) than in the unsupplemented control (0 μM) group (80.5, 87.5, 61.3 and 37.8%, respectively) and more comparable to that of the in vivo matured oocytes (100, 96.5, 95.3 and 92.9%, respectively). LPA did not adversely affect mitochondrial activity, spindle integrity, blastocyst cell number, caspase positivity or Mad2 expression. Oocytes matured in 30 μM LPA had reduced Caspase6 expression, but Hook1, Mater and Hsf1 were up-regulated in all of the LPA-supplemented groups. LIMITATIONS, REASONS FOR CAUTION Chromosomal aneuploidy in the resultant blastocysts and the production of normal pups were not assessed. Only mouse oocytes were assessed. WIDER IMPLICATIONS OF THE FINDINGS Supplementation of IVM medium with 30 μM LPA may enhance the developmental competence of mouse oocytes without affecting apoptosis, spindle normalcy or mitochondrial integrity. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by a research grant (02-2012-021) from the Seoul National University Bundang Hospital. The authors declare that they have no competing interests.
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Affiliation(s)
- Jun Woo Jo
- Department of Obstetrics and Gynaecology, Seoul National University Bundang Hospital, 300 Gumi, Bundang, Seongnam, Gyeonggi 463-707 Korea
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Lysophosphatidic acid stimulates hyaluronan production by mouse cumulus-oocyte complexes. Reprod Med Biol 2013; 13:95-102. [PMID: 29662370 DOI: 10.1007/s12522-013-0169-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 09/18/2013] [Indexed: 11/27/2022] Open
Abstract
Purpose In mammals, cumulus expansion due to increased synthesis of hyaluronan was suggested to correlate with modification of the gap junction between cumulus cells and the oocyte, leading to cumulus expansion. We examined whether lysophosphatidic acid, a lipid mediator detected in mammalian body fluids, stimulates significant production of hyaluronan and thus affects mouse cumulus expansion in vitro. Methods Cumulus-oocyte complexes isolated from the gonadotropin-treated ovaries of B6C3F1 mice were exposed to lysophosphatidic acid in the presence and absence of 0.3 % fetal bovine serum for measurement of cumulus expansion and released hyaluronan, respectively. Results Exogenously added lysophosphatidic acid concentration-dependently stimulated production of hyaluronan in the cumulus cell-oocyte complex, and the stimulatory effect of lysophosphatidic acid on hyaluronan production was mediated through the signal pathways, including LPA receptor-Gi coupling, EGF receptor transactivation, and activations of phosphatidylinositol-specific phospholipase C, protein kinase C and mitogen-activated protein kinases. LPA increased mRNA expression of tumor necrosis α-induced protein 6, a hyaluronan-binding protein, and expansion of cumulus cell-oocyte complex. Conclusions Lysophosphatidic acid in follicular fluids may participate in physiological cumulus expansion before ovulation by stimulating production of hyaluronan and proteins that enable the association of hyaluronan with cumulus cells and oocytes.
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Molina S, Moran-Valero M, Martin D, Vázquez L, Vargas T, Torres C, Ramirez de Molina A, Reglero G. Antiproliferative effect of alkylglycerols as vehicles of butyric acid on colon cancer cells. Chem Phys Lipids 2013; 175-176:50-6. [DOI: 10.1016/j.chemphyslip.2013.07.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 07/26/2013] [Accepted: 07/31/2013] [Indexed: 11/30/2022]
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Yamashita A, Oka S, Tanikawa T, Hayashi Y, Nemoto-Sasaki Y, Sugiura T. The actions and metabolism of lysophosphatidylinositol, an endogenous agonist for GPR55. Prostaglandins Other Lipid Mediat 2013; 107:103-16. [PMID: 23714700 DOI: 10.1016/j.prostaglandins.2013.05.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 05/14/2013] [Accepted: 05/14/2013] [Indexed: 12/12/2022]
Abstract
Lysophosphatidylinositol (LPI) is a subspecies of lysophospholipid and is assumed to be not only a degradation product of phosphatidylinositol (PI), but also a bioactive lysophospholipid mediator. However, not much attention has been directed toward LPI compared to lysophosphatidic acid (LPA), since the receptor for LPI has not been identified. During screening for an agonist for the orphan G protein coupled receptor GPR55, we identified LPI, 2-arachidonoyl LPI in particular, as an agonist for GPR55. Our efforts to identify an LPI receptor facilitated research on LPI as a lipid messenger. In addition, we also found that DDHD1, previously identified as phosphatidic acid-preferring phospholipase A1, was one of the synthesizing enzymes of 2-arachidonoyl LPI. Here, we summarized the background for discovering the LPI receptor, and the actions/metabolism of LPI. We also referred to the biosynthesis of PI, a 1-stearoyl-2-arachidonoyl species, since the molecule is the precursor of 2-arachidonoyl LPI. Furthermore, we discussed physiological and/or pathophysiological processes involving LPI and GPR55, including the relevance of LPI-GPR55 and cannabinoids, since GPR55 was previously postulated to be another cannabinoid receptor. Although there is no doubt that GPR55 is the LPI receptor, we should re-consider whether or not GPR55 is in fact another cannabinoid receptor.
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Affiliation(s)
- Atsushi Yamashita
- Faculty of Pharma-Sciences, Teikyo University, Kaga 2-11-1, Itabashi-Ku, Tokyo 173-8605, Japan.
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Lan M, Liu W, Wang Y, Ge J, Wu J, Zhang H, Chen J, Zhang W, Wang P. Copolythiophene-derived colorimetric and fluorometric sensor for lysophosphatidic acid based on multipoint interactions. ACS APPLIED MATERIALS & INTERFACES 2013; 5:2283-2288. [PMID: 23459452 DOI: 10.1021/am400319g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
3-Phenylthiophene-based water-soluble copolythiophenes (CPT9) were designed for colorimetric and fluorometric detection of lysophosphatidic acid (LPA) based on electrostatic interaction, hydrophobic interaction, and hydrogen bonding. Other negatively charged species gave nearly no interference, and the detection limit reached to 0.6 μM, which is below the requisite detection limits for LPA in human plasma samples. The appealing performance of CPT9 was demonstrated to originate from the multipoint interaction-induced conformational change of conjugated backbone and weakened electron transfer effect. To our best knowledge, this is the first polythiophene based optical sensor which displays emission peak red-shift followed with fluorescence enhancement.
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Affiliation(s)
- Minhuan Lan
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049, China
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Abstract
Lysophosphatidic acid (LPA) is a potent bioactive phospholipid. As many other biological active lipids, LPA is an autacoid: it is formed locally on demand, and it acts locally near its site of synthesis. LPA has a plethora of biological activities on blood cells (platelets, monocytes) and cells of the vessel wall (endothelial cells, smooth muscle cells, macrophages) that are all key players in atherosclerotic and atherothrombotic processes. The specific cellular actions of LPA are determined by its multifaceted molecular structures, the expression of multiple G-protein coupled LPA receptors at the cell surface and their diverse coupling to intracellular signalling pathways. Numerous studies have now shown that LPA has thrombogenic and atherogenic actions. Here, we aim to provide a comprehensive, yet concise, thoughtful and critical review of this exciting research area and to pinpoint potential pharmacological targets for inhibiting thrombogenic and atherogenic activities of LPA. We hope that the review will serve to accelerate knowledge of basic and clinical science, and to foster drug development in the field of LPA and atherosclerotic/atherothrombotic diseases.
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Affiliation(s)
- Andreas Schober
- Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
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Sumida H, Nakamura K, Yanagida K, Ohkawa R, Asano Y, Kadono T, Tamaki K, Igarashi K, Aoki J, Sato S, Ishii S, Shimizu T, Yatomi Y. Decrease in circulating autotaxin by oral administration of prednisolone. Clin Chim Acta 2012; 415:74-80. [PMID: 23063960 DOI: 10.1016/j.cca.2012.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 09/30/2012] [Accepted: 10/01/2012] [Indexed: 12/25/2022]
Abstract
BACKGROUND Autotaxin (ATX), secreted mainly from adipose tissue, functions as a lysophospholipase D (lysoPLD) to hydrolyze lysophosphatidylcholine (LPC) into lysophosphatidic acid (LPA). ATX-LPA signaling is implicated in a wide range of physiological and pathophysiological processes including immune response. METHODS The present study measured serum ATX antigen levels in patients with various autoimmune diseases using a recently developed automated enzyme immunoassay. In addition, serum lysoPLD activity was assessed by measuring choline liberation from the substrate LPC. Moreover, the effect of prednisolone (PSL) on mRNA expression of ATX was evaluated using cultured adipose tissue from mice. RESULTS Decreased serum ATX antigen levels were observed after the initiation of treatment with PSL. The decreased levels recovered during tapering of PSL dose in a dose-dependent manner without exacerbation of disease activity. Moreover, decreased ATX mRNA expression in PSL-treated cultured murine adipose tissue suggested that the effect of PSL on serum ATX may have resulted from changes in adipose tissue ATX expression. CONCLUSIONS Our results suggest that measurement of serum ATX antigen level may be clinically useful for the assessment of steroid treatment effect and drug compliance with steroids. Furthermore, our findings provide many novel insights into the biosynthesis, physiological functions, pathological roles, and clinical significance of circulating ATX.
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Affiliation(s)
- Hayakazu Sumida
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan.
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Current progress in non-Edg family LPA receptor research. Biochim Biophys Acta Mol Cell Biol Lipids 2012; 1831:33-41. [PMID: 22902318 DOI: 10.1016/j.bbalip.2012.08.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 08/01/2012] [Accepted: 08/02/2012] [Indexed: 01/08/2023]
Abstract
Lysophosphatidic acid (LPA) is the simplest phospholipid yet possesses myriad biological functions. Until 2003, the functions of LPA were thought to be elicited exclusively by three subtypes of the endothelial differentiation gene (Edg) family of G protein-coupled receptors - LPA(1), LPA(2), and LPA(3). However, several biological functions of LPA could not be assigned to any of these receptors indicating the existence of one or more additional LPA receptor(s). More recently, the discovery of a second cluster of LPA receptors which includes LPA(4), LPA(5), and LPA(6) has paved the way for new avenues of LPA research. Analyses of these non-Edg family LPA receptors have begun to fill in gaps to understand biological functions of LPA such as platelet aggregation and vascular development that could not be ascribed to classical Edg family LPA receptors and are also unveiling new biological functions. Here we review recent progress in the non-Edg family LPA receptor research, with special emphasis on the pharmacology, signaling, and physiological roles of this family of receptors. This article is part of a Special Issue entitled Advances in Lysophospholipid Research.
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Blackburn J, Mansell JP. The emerging role of lysophosphatidic acid (LPA) in skeletal biology. Bone 2012; 50:756-62. [PMID: 22193551 DOI: 10.1016/j.bone.2011.12.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 12/01/2011] [Accepted: 12/03/2011] [Indexed: 11/22/2022]
Abstract
Lysophosphatidic acid (LPA) is the simplest signalling lipid eliciting pleiotropic actions upon most mammalian cell types. Although LPA has an established role in many biological processes, particularly wound healing and cancer, the participation of LPA in skeletal biology is just beginning to emerge. Early studies, identified in this review, gave a solid indication that LPA, via binding to one of several cell surface receptors, activated multiple intracellular systems culminating in altered cell morphology, growth, motility and survival. More recently the ablation of murine LPA1 and 4 receptors implies that this lipid has a role in skeletal development and post natal bone accrual. Greater understanding of the ability of LPA to influence, for example, osteoblast growth, maturation and survival could be advantageous in developing novel strategies aimed at improving skeletal tissue repair and regeneration. Herein this review provides an insight into the diversity of studies exploring the actions of a small lipid on those major cell types key to skeletal tissue health and homeostasis.
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Affiliation(s)
- Julia Blackburn
- Musculoskeletal Research Unit, Avon Orthopaedic Centre, Southmead Hospital, Westbury-on-Trym, Bristol, BS10 5NB, UK
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42
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Tokumura A, Taira S, Kikuchi M, Tsutsumi T, Shimizu Y, Watsky MA. Lysophospholipids and lysophospholipase D in rabbit aqueous humor following corneal injury. Prostaglandins Other Lipid Mediat 2012; 97:83-9. [PMID: 22281604 DOI: 10.1016/j.prostaglandins.2012.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 12/26/2011] [Accepted: 01/10/2012] [Indexed: 11/29/2022]
Abstract
We previously found that lysophosphatidic acid (LPA)-like activity eliciting Cl(-) currents in Xenopus oocytes is increased in rabbit aqueous humor (AH) following corneal freeze wounds. The purpose of this study was to examine whether actual levels of LPA in AH from wounded eyes are higher than those from control eyes, and to determine the sources and enzymatic pathways of AH LPA in control and wounded conditions. Lysophospholipase D (lysoPLD) activity was measured by the enzymatic determination of choline following incubation of AH samples with exogenous lysophosphatidylcholines (LPCs). The molecular species compositions of LPA and LPC in fresh and incubated AH were determined by liquid chromatography-tandem mass spectrometry. A high, but similar activity of lysoPLD in the samples from both control and freeze-wounded eyes was detected. Its enzymatic properties resemble those of plasma lysoPLD, identified as autotaxin. Levels of LPCs, predominant substrates of lysoPLD in AH, were several times higher in the AH samples from injured eyes than those from the control eyes. Our results suggest that lysoPLD is constitutively released from corneal tissues and/or ciliary body into the AH, with no injury-induced increase in release following freeze-wounding. They also suggest that wound-induced increases in LPA-like biological activity are due to linoleoyl species-rich molecular composition in AH from wounded eyes. A possible mechanism of the altered molecular composition is an increase in the AH concentrations of LPCs, linoleoyl species of which are preferentially converted to corresponding unsaturated LPA by the constitutively active lysoPLD.
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Affiliation(s)
- Akira Tokumura
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan.
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43
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Zhao W, Liu W, Zhang W, Zeng L, Fan Z, Wu J, Wang P. A chromo- and fluorogenic sensor for probing the cancer biomarker lysophosphatidic acid. Analyst 2012; 137:1853-9. [DOI: 10.1039/c2an16153b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ino M, Shimizu Y, Tanaka T, Tokumura A. Alterations of Plasma Levels of Lysophosphatidic Acid in Response to Fasting of Rats. Biol Pharm Bull 2012; 35:2059-63. [DOI: 10.1248/bpb.b12-00497] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Masaki Ino
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, The University of Tokushima Graduate School
| | - Yoshibumi Shimizu
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, The University of Tokushima Graduate School
| | - Tamotsu Tanaka
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, The University of Tokushima Graduate School
| | - Akira Tokumura
- Department of Pharmaceutical Health Chemistry, Institute of Health Biosciences, The University of Tokushima Graduate School
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Hashimoto T, Okudaira S, Igarashi K, Hama K, Yatomi Y, Aoki J. Identification and biochemical characterization of a novel autotaxin isoform, ATXδ, with a four-amino acid deletion. J Biochem 2011; 151:89-97. [PMID: 21994952 DOI: 10.1093/jb/mvr126] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Autotaxin (ATX) is lysophospholipase D, which converts lysophospholipids such as lysophosphatidylcholine (LPC) to lysophosphatidic acid (LPA), a bioactive lipid mediator with multiple biological roles. ATX is present in high concentrations in various biological fluids and is responsible for LPA production in these fluids. The plasma ATX level is altered in some patho-physiological conditions. Three splicing isoforms of ATX have been reported so far (ATXα, β and γ). In this study, we identified and characterized ATXδ, a novel alternative splice variant of ATX, which has a four-amino acid deletion in the L2 linker region of ATXβ. ATXδ was found to be the second major isoform following ATXβ and fully active. ATXβ and ATXδ showed similar divalent cation sensitivity and cell motility-stimulating activity. ATXβ and ATXδ are present in wide range of organism from fish to mammals. Among them, only ATXδ was found in Gallus gallus and Xenopus laevis, suggesting the indispensable role of the isoform. ATXδ was expressed in various human tissues with different expression patterns from that of ATXβ. These results show that ATXδ is a second major ATX isoform sharing similar biochemical characters with the major isoform, ATXβ, and is a potential biomarker.
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Affiliation(s)
- Takafumi Hashimoto
- Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Science, Tohoku University, 6-3 Aoba Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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Tsutsumi T, Adachi M, Nikawadori M, Morishige J, Tokumura A. Presence of bioactive lysophosphatidic acid in renal effluent of rats with unilateral ureteral obstruction. Life Sci 2011; 89:195-203. [DOI: 10.1016/j.lfs.2011.06.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Revised: 05/30/2011] [Accepted: 06/02/2011] [Indexed: 10/18/2022]
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Inoue M, Adachi M, Shimizu Y, Tsutsumi T, Tokumura A. Comparison of lysophospholipid levels in rat feces with those in a standard chow. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:7062-7067. [PMID: 21648420 DOI: 10.1021/jf200986k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Although lysophospholipids have attracted much attention due to their diverse physiological activities through their specific receptors, little is known about their metabolic fates in mammalian digestive systems after their ingestion as a minor food component. In this study, we analyzed five lysophospholipids in lipid extracts of a standard rat chow and feces of rats fed the chow by two-dimensional thin layer chromatography and liquid chromatography-tandem mass spectrometry. The most abundant lysophospholipid in the rat chow was lysophosphatidylcholine followed by lysophosphatidylethanolamine, lysophosphatidic acid (LPA), lysophosphatidylinositol and lysophosphatidylserine (LPS) in an increasing order, but their concentrations were very low in rat feces. Among the molecular species of LPS in the chow, only saturated species were detected in the feces in significant amounts. In addition, several molecular species of LPA remained in the feces in variable portions (saturated > monounsaturated > polyunsaturated). These results suggest that a portion of ingested LPA and LPS reach the rat large intestine, affecting physiological colon functions.
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Affiliation(s)
- Manami Inoue
- Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima 770-8505, Japan
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Yanagida K, Ishii S. Non-Edg family LPA receptors: the cutting edge of LPA research. J Biochem 2011; 150:223-32. [PMID: 21746769 DOI: 10.1093/jb/mvr087] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive lipid mediator with diverse physiological and pathological actions on many types of cells. Originally, LPA was thought to elicit its biological functions through three subtypes of endothelial differentiation gene (Edg) family G protein-coupled receptors (LPA1, LPA2 and LPA3) until our group identified a fourth subtype, LPA4. The discovery of this receptor, which is structurally distinct from the Edg family LPA receptors, led to the identification of two additional LPA receptors, LPA5 and LPA6, homologous to LPA4. These 'non-Edg family' LPA receptors now provide a new framework for understanding the diverse functions of LPA, including vascular development, platelet activation and hair growth. In this review, we summarize the identification, intracellular signalling and biological functions of this novel cluster of LPA receptors.
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Affiliation(s)
- Keisuke Yanagida
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, The University of Tokyo, Tokyo 113-0033
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49
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Zhao C, Sardella A, Chun J, Poubelle PE, Fernandes MJ, Bourgoin SG. TNF-alpha promotes LPA1- and LPA3-mediated recruitment of leukocytes in vivo through CXCR2 ligand chemokines. J Lipid Res 2011; 52:1307-18. [PMID: 21521824 DOI: 10.1194/jlr.m008045] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive lysophospholipid present in low concentrations in serum and biological fluids but in high concentrations at sites of inflammation. LPA evokes a variety of cellular responses via binding to and activation of its specific G protein-coupled receptors (GPCR), namely LPA(1-6). Even though LPA is a chemoattractant for inflammatory cells in vitro, such a role for LPA in vivo remains largely unexplored. In the present study, we used the murine air pouch model to study LPA-mediated leukocyte recruitment in vivo using selective LPA receptor agonist/antagonist and LPA(3)-deficient mice. We report that 1) LPA injection into the air pouch induced leukocyte recruitment and that both LPA(1) and LPA(3) were involved in this process; 2) LPA stimulated the release of the pro-inflammatory chemokines keratinocyte-derived chemokine (KC) and interferon-inducible protein-10 (IP-10) in the air pouch; 3) tumor necrosis factor-α (TNF-α) injected into the air pouch prior to LPA strongly potentiated LPA-mediated secretion of cytokines/chemokines, including KC, IL-6, and IP-10, which preceded the enhanced leukocyte influx; and 4) blocking CXCR2 significantly reduced leukocyte infiltration. We suggest that LPA, via LPA(1) and LPA(3) receptors, may play a significant role in inducing and/or sustaining the massive infiltration of leukocytes during inflammation.
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Affiliation(s)
- Chenqi Zhao
- Rheumatology and Immunology Research Center, CHUQ-CHUL Research Center and Faculty of Medicine, Laval University, Québec City, Québec, Canada
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50
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Tokumura A. Physiological Significance of Lysophospholipids that Act on the Lumen Side of Mammalian Lower Digestive Tracts. ACTA ACUST UNITED AC 2011. [DOI: 10.1248/jhs.57.115] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Akira Tokumura
- Department of Pharmaceutical Health Chemistry, Institute of Biosciences, University of Tokushima Graduate School
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