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Janovicz A, Majer A, Kosztelnik M, Geiszt M, Chun J, Ishii S, Tigyi GJ, Benyó Z, Ruisanchez É. Autotaxin-lysophosphatidic acid receptor 5 axis evokes endothelial dysfunction via reactive oxygen species signaling. Exp Biol Med (Maywood) 2023; 248:1887-1894. [PMID: 37837357 PMCID: PMC10792427 DOI: 10.1177/15353702231199081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/29/2023] [Indexed: 10/16/2023] Open
Abstract
Lysophosphatidylcholine (LPC) is a bioactive lipid that has been shown to attenuate endothelium-dependent vasorelaxation contributing to endothelial dysfunction; however, the underlying mechanisms are not well understood. In this study, we investigated the molecular mechanisms involved in the development of LPC-evoked impairment of endothelium-dependent vasorelaxation. In aortic rings isolated from wild-type (WT) mice, a 20-min exposure to LPC significantly reduced the acetylcholine chloride (ACh)-induced vasorelaxation indicating the impairment of normal endothelial function. Interestingly, pharmacological inhibition of autotaxin (ATX) by GLPG1690 partially reversed the endothelial dysfunction, suggesting that lysophosphatidic acid (LPA) derived from LPC may be involved in the effect. Therefore, the effect of LPC was also tested in aortic rings isolated from different LPA receptor knock-out (KO) mice. LPC evoked a marked reduction in ACh-dependent vasorelaxation in Lpar1, Lpar2, and Lpar4 KO, but its effect was significantly attenuated in Lpar5 KO vessels. Furthermore, addition of superoxide dismutase reduced the LPC-induced endothelial dysfunction in WT but not in the Lpar5 KO mice. In addition, LPC increased H2O2 release from WT vessels, which was significantly reduced in Lpar5 KO vessels. Our findings indicate that the ATX-LPA-LPA5 receptor axis is involved in the development of LPC-induced impairment of endothelium-dependent vasorelaxation via LPA5 receptor-mediated reactive oxygen species production. Taken together, in this study, we identified a new pathway contributing to the development of LPC-induced endothelial dysfunction.
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Affiliation(s)
- Anna Janovicz
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Cerebrovascular and Neurocognitive Disorders Research Group, H-1052 Budapest, Hungary
| | - Aliz Majer
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
| | - Mónika Kosztelnik
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Cerebrovascular and Neurocognitive Disorders Research Group, H-1052 Budapest, Hungary
| | - Miklós Geiszt
- Department of Physiology, Faculty of Medicine, Semmelweis University, H-1094 Budapest, Hungary
| | - Jerold Chun
- Translational Neuroscience at Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Satoshi Ishii
- Department of Immunology, Graduate School of Medicine, Akita University, Akita 010-8543, Japan
| | - Gábor József Tigyi
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Zoltán Benyó
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Cerebrovascular and Neurocognitive Disorders Research Group, H-1052 Budapest, Hungary
| | - Éva Ruisanchez
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Cerebrovascular and Neurocognitive Disorders Research Group, H-1052 Budapest, Hungary
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Ruisanchez É, Janovicz A, Panta RC, Kiss L, Párkányi A, Straky Z, Korda D, Liliom K, Tigyi G, Benyó Z. Enhancement of Sphingomyelinase-Induced Endothelial Nitric Oxide Synthase-Mediated Vasorelaxation in a Murine Model of Type 2 Diabetes. Int J Mol Sci 2023; 24:ijms24098375. [PMID: 37176081 PMCID: PMC10179569 DOI: 10.3390/ijms24098375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/30/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Sphingolipids are important biological mediators both in health and disease. We investigated the vascular effects of enhanced sphingomyelinase (SMase) activity in a mouse model of type 2 diabetes mellitus (T2DM) to gain an understanding of the signaling pathways involved. Myography was used to measure changes in the tone of the thoracic aorta after administration of 0.2 U/mL neutral SMase in the presence or absence of the thromboxane prostanoid (TP) receptor antagonist SQ 29,548 and the nitric oxide synthase (NOS) inhibitor L-NAME. In precontracted aortic segments of non-diabetic mice, SMase induced transient contraction and subsequent weak relaxation, whereas vessels of diabetic (Leprdb/Leprdb, referred to as db/db) mice showed marked relaxation. In the presence of the TP receptor antagonist, SMase induced enhanced relaxation in both groups, which was 3-fold stronger in the vessels of db/db mice as compared to controls and could not be abolished by ceramidase or sphingosine-kinase inhibitors. Co-administration of the NOS inhibitor L-NAME abolished vasorelaxation in both groups. Our results indicate dual vasoactive effects of SMase: TP-mediated vasoconstriction and NO-mediated vasorelaxation. Surprisingly, in spite of the general endothelial dysfunction in T2DM, the endothelial NOS-mediated vasorelaxant effect of SMase was markedly enhanced.
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Affiliation(s)
- Éva Ruisanchez
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Cerebrovascular and Neurocognitive Disorders Research Group, H-1052 Budapest, Hungary
| | - Anna Janovicz
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Cerebrovascular and Neurocognitive Disorders Research Group, H-1052 Budapest, Hungary
| | - Rita Cecília Panta
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
| | - Levente Kiss
- Department of Physiology, Semmelweis University, H-1094 Budapest, Hungary
| | - Adrienn Párkányi
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
| | - Zsuzsa Straky
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
| | - Dávid Korda
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
| | - Károly Liliom
- Institute of Biophysics and Radiation Biology, Semmelweis University, H-1094 Budapest, Hungary
| | - Gábor Tigyi
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Zoltán Benyó
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Cerebrovascular and Neurocognitive Disorders Research Group, H-1052 Budapest, Hungary
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Kerkovits NM, Janovicz A, Ruisanchez É, Őrfi E, Gál P, Szénási G, Benyó Z. Anaphylatoxin C3a induces vasoconstriction and hypertension mediated by thromboxane A
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in mice. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.lb510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Anna Janovicz
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
| | - Éva Ruisanchez
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
| | - Erik Őrfi
- Department of PathophysiologySemmelweis UniversityBudapestHungary
| | - Péter Gál
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of SciencesBudapestHungary
| | - Gábor Szénási
- Department of PathophysiologySemmelweis UniversityBudapestHungary
| | - Zoltán Benyó
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
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Janovicz A, Kerkovits NM, Majer A, Balogh L, Balogh A, Tigyi GJ, Benyo Z, Ruisanchez E. Role of the LPC‐ATX‐LPA Axis in the Development of Endothelial Dysfunction. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.lb509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anna Janovicz
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
| | | | - Aliz Majer
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
| | - Lili Balogh
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
| | - Andrea Balogh
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
| | - Gabor Joseph Tigyi
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
- Department of PhysiologyUniversity of Tennessee Health Science CenterMemphisTN
| | - Zoltan Benyo
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
| | - Eva Ruisanchez
- Institute of Clinical Experimental ResearchSemmelweis UniversityBudapestHungary
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