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Fan H, Xia S, Xiang J, Li Y, Ross MO, Lim SA, Yang F, Tu J, Xie L, Dougherty U, Zhang FQ, Zheng Z, Zhang R, Wu R, Dong L, Su R, Chen X, Althaus T, Riedell PA, Jonker PB, Muir A, Lesinski GB, Rafiq S, Dhodapkar MV, Stock W, Odenike O, Patel AA, Opferman J, Tsuji T, Matsuzaki J, Shah H, Faubert B, Elf SE, Layden B, Bissonnette BM, He YY, Kline J, Mao H, Odunsi K, Gao X, Chi H, He C, Chen J. Trans-vaccenic acid reprograms CD8 + T cells and anti-tumour immunity. Nature 2023; 623:1034-1043. [PMID: 37993715 PMCID: PMC10686835 DOI: 10.1038/s41586-023-06749-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [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: 06/21/2022] [Accepted: 10/16/2023] [Indexed: 11/24/2023]
Abstract
Diet-derived nutrients are inextricably linked to human physiology by providing energy and biosynthetic building blocks and by functioning as regulatory molecules. However, the mechanisms by which circulating nutrients in the human body influence specific physiological processes remain largely unknown. Here we use a blood nutrient compound library-based screening approach to demonstrate that dietary trans-vaccenic acid (TVA) directly promotes effector CD8+ T cell function and anti-tumour immunity in vivo. TVA is the predominant form of trans-fatty acids enriched in human milk, but the human body cannot produce TVA endogenously1. Circulating TVA in humans is mainly from ruminant-derived foods including beef, lamb and dairy products such as milk and butter2,3, but only around 19% or 12% of dietary TVA is converted to rumenic acid by humans or mice, respectively4,5. Mechanistically, TVA inactivates the cell-surface receptor GPR43, an immunomodulatory G protein-coupled receptor activated by its short-chain fatty acid ligands6-8. TVA thus antagonizes the short-chain fatty acid agonists of GPR43, leading to activation of the cAMP-PKA-CREB axis for enhanced CD8+ T cell function. These findings reveal that diet-derived TVA represents a mechanism for host-extrinsic reprogramming of CD8+ T cells as opposed to the intrahost gut microbiota-derived short-chain fatty acids. TVA thus has translational potential for the treatment of tumours.
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Affiliation(s)
- Hao Fan
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Siyuan Xia
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Human Cell Biology and Genetics, Southern University of Science and Technology School of Medicine, Shenzhen, China
| | - Junhong Xiang
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
| | - Yuancheng Li
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA
| | - Matthew O Ross
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
| | - Seon Ah Lim
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Fan Yang
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
| | - Jiayi Tu
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Lishi Xie
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | | | - Freya Q Zhang
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Zhong Zheng
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
| | - Rukang Zhang
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Rong Wu
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Lei Dong
- Department of Systems Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Rui Su
- Department of Systems Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Xiufen Chen
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Thomas Althaus
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Peter A Riedell
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Patrick B Jonker
- The Ben May Department for Cancer Research, The University of Chicago, Chicago, IL, USA
| | - Alexander Muir
- The Ben May Department for Cancer Research, The University of Chicago, Chicago, IL, USA
| | - Gregory B Lesinski
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Sarwish Rafiq
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Madhav V Dhodapkar
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Wendy Stock
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | | | - Anand A Patel
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Joseph Opferman
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Takemasa Tsuji
- Department of Obstetrics and Gynecology, The University of Chicago, Chicago, IL, USA
| | - Junko Matsuzaki
- Department of Obstetrics and Gynecology, The University of Chicago, Chicago, IL, USA
| | - Hardik Shah
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Brandon Faubert
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Shannon E Elf
- The Ben May Department for Cancer Research, The University of Chicago, Chicago, IL, USA
| | - Brian Layden
- Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | | | - Yu-Ying He
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Justin Kline
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Hui Mao
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA
| | - Kunle Odunsi
- Department of Obstetrics and Gynecology, The University of Chicago, Chicago, IL, USA
| | - Xue Gao
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Hongbo Chi
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA.
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
| | - Jing Chen
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA.
- Winship Cancer Institute, Emory University, Atlanta, GA, USA.
- Department of Medicine, The University of Chicago, Chicago, IL, USA.
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Roberge CL, Miceli RT, Murphy LR, Kingsley DM, Gross RA, Corr DT. Sophorolipid Candidates Demonstrate Cytotoxic Efficacy against 2D and 3D Breast Cancer Models. J Nat Prod 2023; 86:1159-1170. [PMID: 37104545 PMCID: PMC10760934 DOI: 10.1021/acs.jnatprod.2c00804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Sophorolipids are biosurfactants derived from the nonpathogenic yeasts such as Starmerella bombicola with potential efficacy in anticancer applications. Simple and cost-effective synthesis of these drugs makes them a promising alternative to traditional chemotherapeutics, pending their success in preliminary drug-screening. Drug-screening typically utilizes 2D cell monolayers due to their simplicity and ease of high-throughput assessment. However, 2D assays fail to capture the complexity and 3D context of the tumor microenvironment and have consequently been implicated in the high percentage of drugs investigated in vitro that later fail in clinical trials. Herein, we screened two sophorolipid candidates and a clinically-used chemotherapeutic, doxorubicin, on in vitro breast cancer models ranging from 2D monolayers to 3D spheroids, employing optical coherence tomography to confirm these morphologies. We calculated corresponding IC50 values for these drugs and found one of the sophorolipids to have comparable toxicities to the chemotherapeutic control. Our findings show increased drug resistance associated with model dimensionality, such that all drugs tested showed that 3D spheroids exhibited higher IC50 values than their 2D counterparts. These findings demonstrate promising preliminary data to support the use of sophorolipids as a more affordable alternative to traditional clinical interventions and demonstrate the importance of 3D tumor models in assessing drug response.
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Affiliation(s)
- Cassandra L Roberge
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Rebecca T Miceli
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Lillian R Murphy
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - David M Kingsley
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Richard A Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - David T Corr
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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3
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Braumann S, Schumacher W, Im NG, Nettersheim FS, Mehrkens D, Bokredenghel S, Hof A, Nies RJ, Adler C, Winkels H, Knöll R, Freeman BA, Rudolph V, Klinke A, Adam M, Baldus S, Mollenhauer M, Geißen S. Nitro-Oleic Acid (NO 2-OA) Improves Systolic Function in Dilated Cardiomyopathy by Attenuating Myocardial Fibrosis. Int J Mol Sci 2021; 22:9052. [PMID: 34445757 PMCID: PMC8396484 DOI: 10.3390/ijms22169052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022] Open
Abstract
Nitro-oleic acid (NO2-OA), a nitric oxide (NO)- and nitrite (NO2-)-derived electrophilic fatty acid metabolite, displays anti-inflammatory and anti-fibrotic signaling actions and therapeutic benefit in murine models of ischemia-reperfusion, atrial fibrillation, and pulmonary hypertension. Muscle LIM protein-deficient mice (Mlp-/-) develop dilated cardiomyopathy (DCM), characterized by impaired left ventricular function and increased ventricular fibrosis at the age of 8 weeks. This study investigated the effects of NO2-OA on cardiac function in Mlp-/- mice both in vivo and in vitro. Mlp-/- mice were treated with NO2-OA or vehicle for 4 weeks via subcutaneous osmotic minipumps. Wildtype (WT) littermates treated with vehicle served as controls. Mlp-/- mice exhibited enhanced TGFβ signalling, fibrosis and severely reduced left ventricular systolic function. NO2-OA treatment attenuated interstitial myocardial fibrosis and substantially improved left ventricular systolic function in Mlp-/- mice. In vitro studies of TGFβ-stimulated primary cardiac fibroblasts further revealed that the anti-fibrotic effects of NO2-OA rely on its capability to attenuate fibroblast to myofibroblast transdifferentiation by inhibiting phosphorylation of TGFβ downstream targets. In conclusion, we demonstrate a substantial therapeutic benefit of NO2-OA in a murine model of DCM, mediated by interfering with endogenously activated TGFβ signaling.
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Affiliation(s)
- Simon Braumann
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Wibke Schumacher
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
- Cologne Cardiovascular Research Center (CCRC), Faculty of Medicine, University of Cologne, 50937 Cologne, Germany;
| | - Nam Gyu Im
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Felix Sebastian Nettersheim
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Dennis Mehrkens
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
- Cologne Cardiovascular Research Center (CCRC), Faculty of Medicine, University of Cologne, 50937 Cologne, Germany;
| | - Senai Bokredenghel
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Alexander Hof
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Richard Julius Nies
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Christoph Adler
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
| | - Holger Winkels
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
| | - Ralph Knöll
- Department of Medicine, Integrated Cardio Metabolic Centre (ICMC), Heart and Vascular Theme, Karolinska Institute, 17177 Stockholm, Sweden;
- Bioscience, Cardiovascular, Renal & Metabolism, BioPharmaceuticals R&D, AstraZeneca, 43150 Mölndal, Sweden
| | - Bruce A. Freeman
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA;
| | - Volker Rudolph
- Cologne Cardiovascular Research Center (CCRC), Faculty of Medicine, University of Cologne, 50937 Cologne, Germany;
- Agnes Wittenborg Institute for Translational Cardiovascular Research, Clinic for General and Interventional Cardiology/Angiology, Herz- und Diabeteszentrum NRW, University Hospital of the Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany;
| | - Anna Klinke
- Agnes Wittenborg Institute for Translational Cardiovascular Research, Clinic for General and Interventional Cardiology/Angiology, Herz- und Diabeteszentrum NRW, University Hospital of the Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany;
| | - Matti Adam
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Stephan Baldus
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
- Cologne Cardiovascular Research Center (CCRC), Faculty of Medicine, University of Cologne, 50937 Cologne, Germany;
| | - Martin Mollenhauer
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
| | - Simon Geißen
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany; (F.S.N.); (D.M.); (S.B.); (A.H.); (R.J.N.); (C.A.); (H.W.); (M.A.); (S.B.); (M.M.); (S.G.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and Faculty of Mathematics and Natural Sciences, University of Cologne, 50937 Cologne, Germany; (W.S.); (N.G.I.)
- Cologne Cardiovascular Research Center (CCRC), Faculty of Medicine, University of Cologne, 50937 Cologne, Germany;
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Tovar R, Gavito AL, Vargas A, Soverchia L, Hernandez-Folgado L, Jagerovic N, Baixeras E, Ciccocioppo R, Rodríguez de Fonseca F, Decara J. Palmitoleoylethanolamide Is an Efficient Anti-Obesity Endogenous Compound: Comparison with Oleylethanolamide in Diet-Induced Obesity. Nutrients 2021; 13:nu13082589. [PMID: 34444748 PMCID: PMC8400335 DOI: 10.3390/nu13082589] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 12/23/2022] Open
Abstract
Obesity is currently a major epidemic in the developed world. However, we lack a wide range of effective pharmacological treatments and therapies against obesity, and those approved are not devoid of adverse effects. Dietary components such as palmitoleic acid have been proposed to improve metabolic disbalance in obesity, although the mechanisms involved are not well understood. Both palmitoleic acid (POA) and oleic acid (OA) can be transformed in N-acylethanolamines (NAEs), mediating the effects of dietary POA and OA. To test this hypothesis, here, we study the effects on food intake and body weight gain of palmitoleylethanolamide (POEA) and the OA-derived NAE analogue, oleoylethanolamide (OEA), in Sprague-Dawley rats with a hypercaloric cafeteria diet (HFD). Plasma biochemical metabolites, inflammatory mediators, and lipogenesis-associated liver protein expression were also measured. The results indicate that POEA is able to improve health status in diet-induced obesity, decreasing weight, liver steatosis, inflammation, and dyslipemia. The action of POEA was found to be almost identical to that of OEA, which is an activator of the nuclear peroxisome proliferator receptor alpha (PPARα), and it is structurally related to POEA. These results suggest that the dietary administration of either POA or POEA might be considered as nutritional intervention as complementary treatment for complicated obesity in humans.
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Affiliation(s)
- Rubén Tovar
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (R.T.); (A.L.G.); (A.V.)
- Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
| | - Ana Luisa Gavito
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (R.T.); (A.L.G.); (A.V.)
| | - Antonio Vargas
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (R.T.); (A.L.G.); (A.V.)
| | - Laura Soverchia
- Pharmacology Unit, School of Pharmacy, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (L.S.); (R.C.)
| | - Laura Hernandez-Folgado
- Instituto de Química Médica, CSIC, C/Juan de la Cierva 3, 28006 Madrid, Spain; (L.H.-F.); (N.J.)
| | - Nadine Jagerovic
- Instituto de Química Médica, CSIC, C/Juan de la Cierva 3, 28006 Madrid, Spain; (L.H.-F.); (N.J.)
| | - Elena Baixeras
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain;
| | - Roberto Ciccocioppo
- Pharmacology Unit, School of Pharmacy, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (L.S.); (R.C.)
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (R.T.); (A.L.G.); (A.V.)
- Correspondence: (F.R.d.F.); (J.D.); Tel.: +34-952614012 (F.R.d.F. & J.D.)
| | - Juan Decara
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (R.T.); (A.L.G.); (A.V.)
- Pharmacology Unit, School of Pharmacy, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (L.S.); (R.C.)
- Correspondence: (F.R.d.F.); (J.D.); Tel.: +34-952614012 (F.R.d.F. & J.D.)
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5
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Pérez-Martín E, Muñoz-Castañeda R, Moutin MJ, Ávila-Zarza CA, Muñoz-Castañeda JM, Del Pilar C, Alonso JR, Andrieux A, Díaz D, Weruaga E. Oleoylethanolamide Delays the Dysfunction and Death of Purkinje Cells and Ameliorates Behavioral Defects in a Mouse Model of Cerebellar Neurodegeneration. Neurotherapeutics 2021; 18:1748-1767. [PMID: 33829414 PMCID: PMC8609004 DOI: 10.1007/s13311-021-01044-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Accepted: 03/16/2021] [Indexed: 02/04/2023] Open
Abstract
Oleoylethanolamide (OEA) is an endocannabinoid that has been proposed to prevent neuronal damage and neuroinflammation. In this study, we evaluated the effects of OEA on the disruption of both cerebellar structure and physiology and on the behavior of Purkinje cell degeneration (PCD) mutant mice. These mice exhibit cerebellar degeneration, displaying microtubule alterations that trigger the selective loss of Purkinje cells and consequent behavioral impairments. The effects of different doses (1, 5, and 10 mg/kg, i.p.) and administration schedules (chronic and acute) of OEA were assessed at the behavioral, histological, cellular, and molecular levels to determine the most effective OEA treatment regimen. Our in vivo results demonstrated that OEA treatment prior to the onset of the preneurodegenerative phase prevented morphological alterations in Purkinje neurons (the somata and dendritic arbors) and decreased Purkinje cell death. This effect followed an inverted U-shaped time-response curve, with acute administration on postnatal day 12 (10 mg/kg, i.p.) being the most effective treatment regimen tested. Indeed, PCD mice that received this specific OEA treatment regimen showed improvements in motor, cognitive and social functions, which were impaired in these mice. Moreover, these in vivo neuroprotective effects of OEA were mediated by the PPARα receptor, as pretreatment with the PPARα antagonist GW6471 (2.5 mg/kg, i.p.) abolished them. Finally, our in vitro results suggested that the molecular effect of OEA was related to microtubule stability and structure since OEA administration normalized some alterations in microtubule features in PCD-like cells. These findings provide strong evidence supporting the use of OEA as a pharmacological agent to limit severe cerebellar neurodegenerative processes.
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Affiliation(s)
- Ester Pérez-Martín
- Laboratory of Neuronal Plasticity and Neurorepair, Institute for Neurosciences of Castile and Leon (INCyL), University of Salamanca, 37007, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain
| | - Rodrigo Muñoz-Castañeda
- Laboratory of Neuronal Plasticity and Neurorepair, Institute for Neurosciences of Castile and Leon (INCyL), University of Salamanca, 37007, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain
| | - Marie-Jo Moutin
- GIN, Univ. Grenoble Alpes, CNRS, CEA, Grenoble Institute Neurosciences, Inserm, U121638000, Grenoble, France
| | - Carmelo A Ávila-Zarza
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain
- Department of Statistics, University of Salamanca, 37007, Salamanca, Spain
| | - José M Muñoz-Castañeda
- Department of Theoretical, Atomic and Optical Physics, University of Valladolid, 47071, Valladolid, Spain
| | - Carlos Del Pilar
- Laboratory of Neuronal Plasticity and Neurorepair, Institute for Neurosciences of Castile and Leon (INCyL), University of Salamanca, 37007, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain
| | - José R Alonso
- Laboratory of Neuronal Plasticity and Neurorepair, Institute for Neurosciences of Castile and Leon (INCyL), University of Salamanca, 37007, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain
- Universidad de Tarapacá, Arica, Chile
| | - Annie Andrieux
- GIN, Univ. Grenoble Alpes, CNRS, CEA, Grenoble Institute Neurosciences, Inserm, U121638000, Grenoble, France
| | - David Díaz
- Laboratory of Neuronal Plasticity and Neurorepair, Institute for Neurosciences of Castile and Leon (INCyL), University of Salamanca, 37007, Salamanca, Spain.
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain.
| | - Eduardo Weruaga
- Laboratory of Neuronal Plasticity and Neurorepair, Institute for Neurosciences of Castile and Leon (INCyL), University of Salamanca, 37007, Salamanca, Spain.
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain.
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Moya M, San Felipe D, Ballesta A, Alén F, Rodríguez de Fonseca F, García-Bueno B, Marco EM, Orio L. Cerebellar and cortical TLR4 activation and behavioral impairments in Wernicke-Korsakoff Syndrome: Pharmacological effects of oleoylethanolamide. Prog Neuropsychopharmacol Biol Psychiatry 2021; 108:110190. [PMID: 33271211 DOI: 10.1016/j.pnpbp.2020.110190] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 01/19/2023]
Abstract
Wernicke-Korsakoff Syndrome (WKS) is a neuropsychiatric disorder whose etiology is a thiamine deficiency (TD), with alcoholism being the main underlying cause. Previous evidence suggests the presence of initial neuroinflammation and oxidative/nitrosative stress in the physiopathology, although the specific molecular mechanisms underlying TD-induced brain damage and behavioral disabilities are unknown. We explored the specific role of the innate immune receptor TLR4 in three murine models of WKS, based on the combination of a thiamine-deficient diet and pyrithiamine injections (0.25 mg/kg, i.p.) over time. The Symptomatic Model (SM) allowed us to describe the complete neurological/neurobehavioral symptomatology over 16 days of TD. Animals showed an upregulation of the TLR4 signaling pathway both in the frontal cortex (FC) and cerebellum and clear motor impairments related with cerebellar dysfunction. However, in the Pre-Symptomatic Model (PSM), 12 days of TD induced the TLR4 pathway upregulation in the FC, which correlated with disinhibited-like behavior, but not in the cerebellum, and no motor impairments. In addition, we tested the effects of the biolipid oleoylethanolamide (OEA, 10 mg/kg, i.p., once daily, starting before any symptom of the pathology is manifested) through the Glucose-Precipitated Model (GPM), which was generated by glucose loading (5 g/kg, i.v., last day) in thiamine-deficient animals to accelerate damage. Pretreatment with OEA prevented the TLR4-induced signature in the FC, as well as an underlying incipient memory disability and disinhibited-like behavior. This study suggests a key role for TLR4 in TD-induced neuroinflammation in the FC and cerebellum, and it reveals different vulnerability of these brain regions in WKS over time. Pre-treatment with OEA counteracts TD-induced TLR4-associated neuroinflammation and may serve as co-adjuvant therapy to prevent WKS-induced neurobehavioral alterations.
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Affiliation(s)
- Marta Moya
- Department of Psychobiology and Behavioral Sciences Methods, Faculty of Psychology, Universidad Complutense de Madrid (UCM), Madrid, Spain; Red de Trastornos Adictivos (RTA) del Instituto de Salud Carlos III (ISCIII), Spain
| | - Diego San Felipe
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, UCM, Spain
| | - Antonio Ballesta
- Department of Psychobiology and Behavioral Sciences Methods, Faculty of Psychology, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Francisco Alén
- Department of Psychobiology and Behavioral Sciences Methods, Faculty of Psychology, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Fernando Rodríguez de Fonseca
- Department of Psychobiology and Behavioral Sciences Methods, Faculty of Psychology, Universidad Complutense de Madrid (UCM), Madrid, Spain; Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental, Hospital Regional de Málaga, Spain; Red de Trastornos Adictivos (RTA) del Instituto de Salud Carlos III (ISCIII), Spain
| | - Borja García-Bueno
- Department of Pharmacology and Toxicology, Faculty of Medicine, UCM, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Instituto Universitario de Investigación en Neuroquímica UCM, Spain
| | - Eva M Marco
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, UCM, Spain; Red de Trastornos Adictivos (RTA) del Instituto de Salud Carlos III (ISCIII), Spain
| | - Laura Orio
- Department of Psychobiology and Behavioral Sciences Methods, Faculty of Psychology, Universidad Complutense de Madrid (UCM), Madrid, Spain; Red de Trastornos Adictivos (RTA) del Instituto de Salud Carlos III (ISCIII), Spain.
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7
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Romano A, Friuli M, Del Coco L, Longo S, Vergara D, Del Boccio P, Valentinuzzi S, Cicalini I, Fanizzi FP, Gaetani S, Giudetti AM. Chronic Oleoylethanolamide Treatment Decreases Hepatic Triacylglycerol Level in Rat Liver by a PPARγ/SREBP-Mediated Suppression of Fatty Acid and Triacylglycerol Synthesis. Nutrients 2021; 13:394. [PMID: 33513874 PMCID: PMC7910994 DOI: 10.3390/nu13020394] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/18/2021] [Accepted: 01/23/2021] [Indexed: 12/14/2022] Open
Abstract
Oleoylethanolamide (OEA) is a naturally occurring bioactive lipid belonging to the family of N-acylethanolamides. A variety of beneficial effects have been attributed to OEA, although the greater interest is due to its potential role in the treatment of obesity, fatty liver, and eating-related disorders. To better clarify the mechanism of the antiadipogenic effect of OEA in the liver, using a lipidomic study performed by 1H-NMR, LC-MS/MS and thin-layer chromatography analyses we evaluated the whole lipid composition of rat liver, following a two-week daily treatment of OEA (10 mg kg-1 i.p.). We found that OEA induced a significant reduction in hepatic triacylglycerol (TAG) content and significant changes in sphingolipid composition and ceramidase activity. We associated the antiadipogenic effect of OEA to decreased activity and expression of key enzymes involved in fatty acid and TAG syntheses, such as acetyl-CoA carboxylase, fatty acid synthase, diacylglycerol acyltransferase, and stearoyl-CoA desaturase 1. Moreover, we found that both SREBP-1 and PPARγ protein expression were significantly reduced in the liver of OEA-treated rats. Our findings add significant and important insights into the molecular mechanism of OEA on hepatic adipogenesis, and suggest a possible link between the OEA-induced changes in sphingolipid metabolism and suppression of hepatic TAG level.
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Affiliation(s)
- Adele Romano
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.R.); (M.F.); (S.G.)
| | - Marzia Friuli
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.R.); (M.F.); (S.G.)
| | - Laura Del Coco
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy; (L.D.C.); (S.L.); (D.V.)
| | - Serena Longo
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy; (L.D.C.); (S.L.); (D.V.)
| | - Daniele Vergara
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy; (L.D.C.); (S.L.); (D.V.)
| | - Piero Del Boccio
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (P.D.B.); (S.V.)
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
| | - Silvia Valentinuzzi
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (P.D.B.); (S.V.)
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
| | - Ilaria Cicalini
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
- Department of Medicine and Aging Science, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Francesco P. Fanizzi
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy; (L.D.C.); (S.L.); (D.V.)
| | - Silvana Gaetani
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.R.); (M.F.); (S.G.)
| | - Anna M. Giudetti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy; (L.D.C.); (S.L.); (D.V.)
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8
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Tutunchi H, Ostadrahimi A, Saghafi-Asl M, Hosseinzadeh-Attar MJ, Shakeri A, Asghari-Jafarabadi M, Roshanravan N, Farrin N, Naemi M, Hasankhani M. Oleoylethanolamide supplementation in obese patients newly diagnosed with non-alcoholic fatty liver disease: Effects on metabolic parameters, anthropometric indices, and expression of PPAR-α, UCP1, and UCP2 genes. Pharmacol Res 2020; 156:104770. [PMID: 32217148 DOI: 10.1016/j.phrs.2020.104770] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 12/18/2022]
Abstract
The effects of oleoylethanolamide (OEA) on NAFLD are yet to be examined in human. The objective of the present study was to examine the effects of OEA supplementation along with weight loss intervention on the expression of PPAR-α, uncoupling proteins 1and 2 (UCP1 and UCP2) genes in the peripheral blood mononuclear cells (PBMCs), metabolic parameters, and anthropometric indices among obese patients with NAFLD. In this triple-blind placebo-controlled randomized clinical trial, 76 obese patients newly diagnosed with NAFLD were randomly allocated into either OEA or placebo group along with calorie-restricted diets for 12 weeks. At pre-and post-intervention phase, mRNA expression levels of PPAR-α, UCP1, and UCP2 genes in the PBMCs, serum levels of metabolic parameters as well as diet and appetite sensations were assessed. There was a significant increase in the expression levels of PPAR-α, UCP1, and UCP2 genes in the PBMCs, compared to the placebo at the endpoint. A significant decrease in the anthropometric indices, energy and carbohydrate intakes, glycemic parameters, except for hemoglobin A1c concentration was also observed in the OEA group, compared to the placebo group. OEA treatment significantly resulted in decreased serum levels of triglyceride (TG), alanine aminotransferase (ALT), aspartate aminotransferase (AST), ALT/AST, increased serum levels of high-density lipoprotein cholesterol (HDL-C), and improved appetite sensations. Importantly, a significant improvement in TG, ALT, AST, ALT/AST, HDL-C levels as well as appetite sensations by OEA were under the influence of body mass index (BMI). Although liver steatosis severity was significantly reduced in both groups, the between-group differences did not reach statistical significance (P = 0.061). In conclusion, the present study, for the first time, revealed that OEA supplementation significantly improved anthropometric and metabolic risk factors related to NAFLD.
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Affiliation(s)
- Helda Tutunchi
- Student Research Committee, Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Alireza Ostadrahimi
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Maryam Saghafi-Asl
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad-Javad Hosseinzadeh-Attar
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
| | - Abolhasan Shakeri
- Department of Radiology, Imam Reza Teaching Hospital, Clinical Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
| | | | - Neda Roshanravan
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Nazila Farrin
- Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Naemi
- Student Research Committee, Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Hasankhani
- Student Research Committee, Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Rom O, Xu G, Guo Y, Zhu Y, Wang H, Zhang J, Fan Y, Liang W, Lu H, Liu Y, Aviram M, Liu Z, Kim S, Liu W, Wang X, Chen YE, Villacorta L. Nitro-fatty acids protect against steatosis and fibrosis during development of nonalcoholic fatty liver disease in mice. EBioMedicine 2019; 41:62-72. [PMID: 30772307 PMCID: PMC6444056 DOI: 10.1016/j.ebiom.2019.02.019] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 02/07/2019] [Accepted: 02/07/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) and resulting nonalcoholic steatohepatitis (NASH) are reaching global epidemic proportions. Lack of non-invasive diagnostic tools and effective therapies constitute two of the major hurdles for a bona fide treatment and a reversal of NASH progression and/or regression of the disease. Nitro-oleic acid (OA-NO2) has been proven effective in multiple experimental models of inflammation and fibrosis. Thus, the potential benefit of in vivo administration of OA-NO2 to treat advanced NAFLD was tested herein in a model of long-term NASH diet-induced liver damage. METHODS Non-invasive imaging (e.g. photoacustic-ultrasound (PA-US)) was pursued to establish advanced experimental model of NASH in mice in which both steatosis and fibrosis were diagnosed prior experimental therapy with OA-NO2. Experimental controls included equimolar amounts of the non-nitrated oleic acid (OA). CLAMS and NMR-based analysis was used for energy metabolism. FINDINGS CLAMS and NMR-based analysis demonstrates that OA-NO2 improves body composition and energy metabolism and inhibits hepatic triglyceride (TG) accumulation. Photoacoustic-ultrasound imaging revealed a robust inhibition of liver steatosis and fibrosis by OA-NO2. RNA-sequencing analysis uncovered inflammation and fibrosis as major pathways suppressed by OA-NO2 administration, as well as regulation of lipogenesis and lipolysis pathways, with a robust inhibition of SREBP1 proteolytic activation and subsequent lipogenesis gene expression by OA-NO2. These results were further supported by histological analysis and quantification of lipid accumulation, lobular inflammation (F4/80 staining) and fibrosis (collagen deposition, αSMA staining) as well as established parameters of liver damage (ALT). In vitro studies indicate that OA-NO2 inhibits TG biosynthesis and accumulation in hepatocytes and inhibits fibrogenesis in human stellate cells. INTERPRETATION OA-NO2 improve steatohepatitis and fibrosis and may constitute an effective therapeutic approach against advanced NAFLD that warrants further clinical evaluation.
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Affiliation(s)
- Oren Rom
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Guan Xu
- Department of Radiology, Michigan Medicine, Ann Arbor, MI, USA
| | - Yanhong Guo
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Yunhao Zhu
- Department of Radiology, Michigan Medicine, Ann Arbor, MI, USA
| | - Huilun Wang
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Jifeng Zhang
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Yanbo Fan
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Wenying Liang
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Haocheng Lu
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Yuhao Liu
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Michael Aviram
- The Lipid Research Laboratory, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Zhipeng Liu
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, West Lafayette, Indiana, USA
| | - Seongho Kim
- Biostatistics Core, Karmanos Cancer Institute, Wayne State University, Detroit, MI, USA
| | - Wanqing Liu
- Department of Pharmaceutical Sciences and Pharmacology, Wayne State University, Detroit, MI, USA
| | - Xueding Wang
- Department of Radiology, Michigan Medicine, Ann Arbor, MI, USA
| | - Y Eugene Chen
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Luis Villacorta
- Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI, USA.
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10
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Luo D, Zhang Y, Yuan X, Pan Y, Yang L, Zhao Y, Zhuo R, Chen C, Peng L, Li W, Jin X, Zhou Y. Oleoylethanolamide inhibits glial activation via moudulating PPARα and promotes motor function recovery after brain ischemia. Pharmacol Res 2019; 141:530-540. [PMID: 30660821 DOI: 10.1016/j.phrs.2019.01.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/29/2018] [Accepted: 01/14/2019] [Indexed: 02/06/2023]
Abstract
Glial activation and scar formation impede the neurological function recovery after cerebral ischemia. Oleoylethanolamide (OEA), a bioactive lipid mediator, shows neuroprotection against acute brain ischemia, however, its long-term effect, especially on glial scar formation, has not been characterized. In this research, we investigate the effect of OEA on glial activation and scar formation after cerebral ischemia in vitro and in vivo experiments. Glial scar formation in vitro model was induced by transforming growth factor β1 (TGF-β1) in C6 glial cell culture, and experiment model in vivo was induced by middle cerebral artery occlusion (MCAO) in mice. The protein expressions of the markers of glial activation (S100β, GFAP, or pSmads) and glial scar (neurocan) were detected by Western blot and/or immunofluorescence staining; To evaluate the role of PPARɑ in the effect of OEA on glial activation, the PPARɑ antagonist GW6471 was used. Behavior tests were used to assay the effect of OEA on motor function recovery 14 days after brain ischemia in mice. Our results show that OEA (10-50 μM) concentration-dependently inhibited the upregulation of S100β, GFAP, pSmads and neurocan induced by TGF-β1 in C6 glial cells. At the same time, OEA promoted the protein expression and nuclear transportation of PPARɑ in glial cells. PPARα antagonist GW6471 abolished the effect of OEA on glial activation. In addition, we found that delay administration of OEA inhibited the astrocyte activation and promoted the recovery of motor function after brain ischemia in mice. These results indicate that OEA may be developed into a new candidate for attenuating astrocytic scar formation and improving motor function after ischemic stroke.
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Affiliation(s)
- Doudou Luo
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Yali Zhang
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China; Medical College, Xuchang University, Xuchang, 461000, PR China
| | - Xiaoqian Yuan
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Yilin Pan
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China
| | - Lichao Yang
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Yun Zhao
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Rengong Zhuo
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Caixia Chen
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Lu Peng
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Wenjun Li
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China
| | - Xin Jin
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China.
| | - Yu Zhou
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102, PR China; Key Laboratory of Chiral Drugs, Xiamen, 361102, PR China.
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11
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Pradhan PK, Sood N, Yadav MK, Arya P, Chaudhary DK, Kumar U, Kumar CB, Swaminathan TR, Rathore G. Effect of immunization of rohu Labeo rohita with inactivated germinated zoospores in providing protection against Aphanomyces invadans. Fish Shellfish Immunol 2018; 78:195-201. [PMID: 29684607 DOI: 10.1016/j.fsi.2018.04.041] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 04/18/2018] [Accepted: 04/19/2018] [Indexed: 06/08/2023]
Abstract
Infection with Aphanomyces invadans is one of the most destructive diseases of freshwater fishes. Indian major carps, the dominant cultured species in the Indian sub-continent are highly susceptible to this disease. Till date, there is no effective treatment for control of this disease and immunization can be one of the strategies to reduce disease-related losses. In the present study, inactivated germinated zoospores of A. invadans were evaluated as antigen in conjunction with and without adjuvant Montanide™ ISA 763 A VG, for assessing their efficacy in rendering protection against A. invadans infection. For the experiment, rohu Labeo rohita, (n = 160, 74 ± 12 g) were divided into 4 groups (C, A, G and GA) with 40 fish in each group. The fish in groups i.e., C, A, G and GA were injected intraperitoneally with PBS, adjuvant emulsified with PBS, inactivated germinated zoospores, and inactivated germinated zoospores emulsified with adjuvant, respectively. After 21 days of immunization, the fish were given a booster dose as above. After 7 days of the booster dose, the fish were challenged with zoospores of A. invadans to determine the relative percent survival (RPS). The results revealed that all the fish in C, A and G group succumbed to infection (0% RPS), although there was delayed mortality in fish from A and G groups in comparison to the C group. However, the fish in GA group showed significantly higher (P < 0.05) protection (66.7% RPS). In addition, following booster immunization (before challenge), the antibody level in the GA group was significantly higher (P < 0.05) than the control group. In western blotting, sera from G and GA groups showed reactivity with peptides of about 54 KDa. Following challenge (on 14th day), the antibody level as well as total antiprotease activity in fish of all the groups was significantly decreased in comparison to pre-challenge, except fish in GA group not exhibiting any gross lesions. In addition, sera of surviving fish of GA group showed significant inhibition of germination of zoospores and germlings growth in comparison to other groups (P < 0.05). Further, histopathological examination of the muscle tissue revealed that, in fish of GA group without any gross lesions, there were well developed granulomas and extensive mononuclear cell infiltration restricted to the site of injection, whereas in other groups, there was extensive myonecrosis with proliferating hyphae. These preliminary findings indicate that inactivated germinated zoospores of A. invadans in combination with adjuvant could stimulate good immune response and confer remarkable protection in rohu.
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Affiliation(s)
- Pravata K Pradhan
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India.
| | - Neeraj Sood
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India.
| | - Manoj K Yadav
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - Pooja Arya
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - Dharmendra K Chaudhary
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - Uday Kumar
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - Chandra Bhushan Kumar
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - T R Swaminathan
- Peninsular and Marine Fish Genetic Resources Centre, ICAR-NBFGR, CMFRI Campus, Kochi, 682 018, Kerala, India
| | - Gaurav Rathore
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
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Takita M, Iwanishi M, Minami T, Kono M, Chishina H, Arizumi T, Yada N, Hagiwara S, Minami Y, Ida H, Ueshima K, Naoshi N, Kudo M. Monoethanolamine Oleate Sclerotherapy for Polycystic Liver Disease. Dig Dis 2016; 34:654-658. [PMID: 27750233 DOI: 10.1159/000448826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The objective of treatment for polycystic liver disease is to reduce the liver volume and reduce or resolve compression symptoms such as abdominal fullness and abdominal pain due to hepatomegaly. Liver cysts are treated internally by puncture and aspiration of the cyst contents or hepatic artery embolization and surgically by cyst fenestration or hepatectomy, but no clear consensus has been reached concerning their selection. We introduced monoethanolamine oleate (EO) sclerotherapy therapy for liver cysts in 1999 and reported its effectiveness. In this study, cases were added, and the results including those of long-term follow-up were evaluated. SUBJECTS Twenty-two patients (5 males and 17 females, mean age 65.2) who underwent EO infusion therapy for liver cysts between January 1999 and June 2011 were evaluated. METHODS Liver cysts were punctured under ultrasound guidance, and a 7Fr pigtail catheter was inserted. After aspirating the cyst contents, EO was infused, and a clamp was applied for 24 h. Then, the catheter was declamped, cyst contents were aspirated again, and the catheter was removed. After the treatment, the cyst size was measured, and the patients were followed up. RESULTS Eight simple cysts in 8 patients (simple cyst group) and 21 cysts in 14 patients with multiple cysts (polycystic liver disease group) were treated and followed up over a median of 78 months (0-203 months). The mean volume reduction rate was 99% in the simple cyst group and 91% in the polycystic liver disease group (p = 0.04). One procedural accident resulting in liver abscess formation was observed in 1 patient 1 week after discharge, and it required drain placement and antibiotic administration. While mild abdominal pain was observed in a few patients, it was resolved spontaneously under observation. CONCLUSION EO infusion therapy achieves fairly high treatment response in the volume reduction (99%) and sustained shrinkage over long-term follow-up. Therefore, this is a breakthrough technique in the treatment of polycystic liver disease as well as simple cyst and should be a standard of care in the treatment of this disease.
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Zhao H, Pflug BR, Lai X, Wang M. Pyruvate dehydrogenase alpha 1 as a target of omega-3 polyunsaturated fatty acids in human prostate cancer through a global phosphoproteomic analysis. Proteomics 2016; 16:2419-31. [PMID: 27357730 DOI: 10.1002/pmic.201600166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/23/2016] [Accepted: 06/27/2016] [Indexed: 01/26/2023]
Abstract
Prostate cancer is one of the leading cancers in men. Taking dietary supplements, such as fish oil (FO), which is rich in n-3 polyunsaturated fatty acids (PUFAs), has been employed as a strategy to lower prostate cancer risk and control disease progression. In this study, we investigated the global phosphoproteomic changes induced by FO using a combination of phosphoprotein-enrichment strategy and high-resolution tandem mass spectrometry. We found that FO induces many more phosphorylation changes than oleic acid when they both are compared to control group. Quantitative comparison between untreated group and FO- or oleic acid-treated groups uncovered a number of important protein phosphorylation changes induced by n-3PUFAs. This phosphoproteomic discovery study and the follow-up Western Blot validation study elucidate that phosphorylation levels of the two regulatory serine residues in pyruvate dehydrogenase alpha 1 (PDHA1), serine-232 and serine-300, are significantly decreased upon FO treatment. As expected, increased pyruvate dehydrogenase activity was also observed. This study suggests that FO-induced phosphorylation changes in PDHA1 is more likely related to the glucose metabolism pathway, and n-3 PUFAs may have a role in controlling the balance between lipid and glucose oxidation.
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Affiliation(s)
- Heng Zhao
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Beth R Pflug
- Department of Medicine, Division of Clinical Pharmacology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Xianyin Lai
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Cellular & Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Mu Wang
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA.
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Ano Y, Ozawa M, Kutsukake T, Sugiyama S, Uchida K, Yoshida A, Nakayama H. Preventive effects of a fermented dairy product against Alzheimer's disease and identification of a novel oleamide with enhanced microglial phagocytosis and anti-inflammatory activity. PLoS One 2015; 10:e0118512. [PMID: 25760987 PMCID: PMC4356537 DOI: 10.1371/journal.pone.0118512] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 01/19/2015] [Indexed: 11/24/2022] Open
Abstract
Despite the ever-increasing number of patients with dementia worldwide, fundamental therapeutic approaches to this condition have not been established. Epidemiological studies suggest that intake of fermented dairy products prevents cognitive decline in the elderly. However, the active compounds responsible for the effect remain to be elucidated. The present study aims to elucidate the preventive effects of dairy products on Alzheimer’s disease and to identify the responsible component. Here, in a mouse model of Alzheimer’s disease (5xFAD), intake of a dairy product fermented with Penicillium candidum had preventive effects on the disease by reducing the accumulation of amyloid β (Aβ) and hippocampal inflammation (TNF-α and MIP-1α production), and enhancing hippocampal neurotrophic factors (BDNF and GDNF). A search for preventive substances in the fermented dairy product identified oleamide as a novel dual-active component that enhanced microglial Aβ phagocytosis and anti-inflammatory activity towards LPS stimulation in vitro and in vivo. During the fermentation, oleamide was synthesized from oleic acid, which is an abundant component of general dairy products owing to lipase enzymatic amidation. The present study has demonstrated the preventive effect of dairy products on Alzheimer’s disease, which was previously reported only epidemiologically. Moreover, oleamide has been identified as an active component of dairy products that is considered to reduce Aβ accumulation via enhanced microglial phagocytosis, and to suppress microglial inflammation after Aβ deposition. Because fermented dairy products such as camembert cheese are easy to ingest safely as a daily meal, their consumption might represent a preventive strategy for dementia.
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Affiliation(s)
- Yasuhisa Ano
- Central Laboratories for Key Technologies, Kirin Company Ltd., 1–13–5 Fukuura Kanazawa-ku, Yokohama-shi, Kanagawa, 236–0004, Japan
- * E-mail:
| | - Makiko Ozawa
- Graduate School of Agricultural and Life Sciences, the University of Tokyo, 1–1–1 Yayoi, Bunkyo-ku, Tokyo, 113–8657, Japan
| | - Toshiko Kutsukake
- Central Laboratories for Key Technologies, Kirin Company Ltd., 1–13–5 Fukuura Kanazawa-ku, Yokohama-shi, Kanagawa, 236–0004, Japan
| | - Shinya Sugiyama
- Koiwai Dairy Products Co., Ltd., 36–1 Maruyachi, Shizukuishi-cho, Iwate, 020–0507, Japan
| | - Kazuyuki Uchida
- Graduate School of Agricultural and Life Sciences, the University of Tokyo, 1–1–1 Yayoi, Bunkyo-ku, Tokyo, 113–8657, Japan
| | - Aruto Yoshida
- Central Laboratories for Key Technologies, Kirin Company Ltd., 1–13–5 Fukuura Kanazawa-ku, Yokohama-shi, Kanagawa, 236–0004, Japan
| | - Hiroyuki Nakayama
- Graduate School of Agricultural and Life Sciences, the University of Tokyo, 1–1–1 Yayoi, Bunkyo-ku, Tokyo, 113–8657, Japan
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Chung SY, Mattison CP, Reed S, Wasserman RL, Desormeaux WA. Treatment with oleic acid reduces IgE binding to peanut and cashew allergens. Food Chem 2015; 180:295-300. [PMID: 25766831 DOI: 10.1016/j.foodchem.2015.02.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/26/2015] [Accepted: 02/12/2015] [Indexed: 01/03/2023]
Abstract
Oleic acid (OA) is known to bind and change the bioactivities of proteins, such as α-lactalbumin and β-lactoglobulin in vitro. The objective of this study was to determine if OA binds to allergens from a peanut extract or cashew allergen and changes their allergenic properties. Peanut extract or cashew allergen (Ana o 2) was treated with or without 5mM sodium oleate at 70°C for 60 min (T1) or under the same conditions with an additional overnight incubation at 37°C (T2). After treatment, the samples were dialyzed and analyzed by SDS-PAGE and for OA content. IgE binding was evaluated by ELISA and western blot, using a pooled serum or plasma from individuals with peanut or cashew allergies. Results showed that OA at a concentration of 5mM reduced IgE binding to the allergens. Peanut sample T2 exhibited a lower IgE binding and a higher OA content (protein-bound) than T1. Cashew allergen T2 also showed a reduction in IgE binding. We conclude that OA reduces the allergenic properties of peanut extract and cashew allergen by binding to the allergens. Our findings indicate that OA in the form of sodium oleate may be potentially useful as a coating to reduce the allergenic properties of peanut and cashew allergens.
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Affiliation(s)
- Si-Yin Chung
- USDA-ARS, Southern Regional Research Center, New Orleans, LA, USA.
| | | | - Shawndrika Reed
- USDA-ARS, Southern Regional Research Center, New Orleans, LA, USA
| | - Richard L Wasserman
- Allergy Immunology Research Center of North Texas, Department of Pediatrics, University of Texas Southwestern Medical School, Dallas, TX 75390, USA
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Li L, Li L, Chen L, Lin X, Xu Y, Ren J, Fu J, Qiu Y. Effect of oleoylethanolamide on diet-induced nonalcoholic fatty liver in rats. J Pharmacol Sci 2014; 127:244-50. [PMID: 25837920 DOI: 10.1016/j.jphs.2014.12.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 11/30/2014] [Accepted: 12/01/2014] [Indexed: 02/07/2023] Open
Abstract
Oleoylethanolamine (OEA), an endogenous high-affinity agonist of peroxisome proliferator-activated receptor alpha (PPAR-α), has revealed the pharmacological properties in the treatment of obesity, atherosclerosis and other diseases through the modulation of lipid metabolism. To assess whether OEA can also regulate non-alcoholic fatty liver disease (NAFLD) caused by fat accumulation, we administrated OEA or fenofibrate in Sprague Dawley (SD) rats fed with a high fat diet (HFD). After 6 or 17 weeks treatment, OEA (5 mg/kg/day, i.p.) relieved the development of NAFLD compared with control groups by regulating the levels of plasma TG, TC, ALT and AST and liver inflammatory cytokines. Gene expression analysis of liver tissue and plasma from the animal models showed that OEA and fenofibrate both promoted the lipid β-oxidation by activating PPAR-α. Detailed research revealed that OEA inhibited the mRNA expression of lipogenesis in a PPAR-α-independant manner, while fenofibrate expressed an opposite effection. In summary, our research results suggested that as a potential lead compound, OEA could improve HFD-induced NAFLD with higher efficacy and safety than fenofibrate.
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Affiliation(s)
- Long Li
- Department of Medical Sciences, Medical College, Xiamen University, Xiamen, Fujian, China; Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, China
| | - Lei Li
- Department of Medical Sciences, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Ling Chen
- Department of Medical Sciences, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Xiaoyu Lin
- Center of Liver Diseases, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Yaping Xu
- Department of Medical Sciences, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Jie Ren
- Department of Medical Sciences, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Jin Fu
- Department of Medical Sciences, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Yan Qiu
- Department of Medical Sciences, Medical College, Xiamen University, Xiamen, Fujian, China.
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Fan A, Wu X, Wu H, Li L, Huang R, Zhu Y, Qiu Y, Fu J, Ren J, Zhu C. Atheroprotective effect of oleoylethanolamide (OEA) targeting oxidized LDL. PLoS One 2014; 9:e85337. [PMID: 24465540 PMCID: PMC3896367 DOI: 10.1371/journal.pone.0085337] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 12/04/2013] [Indexed: 01/11/2023] Open
Abstract
Dietary fat-derived lipid oleoylethanolamide (OEA) has shown to modulate lipid metabolism through a peroxisome proliferator-activated receptor-alpha (PPAR-α)-mediated mechanism. In our study, we further demonstrated that OEA, as an atheroprotective agent, modulated the atherosclerotic plaques development. In vitro studies showed that OEA antagonized oxidized LDL (ox-LDL)-induced vascular endothelial cell proliferation and vascular smooth muscle cell migration, and suppressed lipopolysaccharide (LPS)-induced LDL modification and inflammation. In vivo studies, atherosclerosis animals were established using balloon-aortic denudation (BAD) rats and ApoE(-/-) mice fed with high-caloric diet (HCD) for 17 or 14 weeks respectively, and atherosclerotic plaques were evaluated by oil red staining. The administration of OEA (5 mg/kg/day, intraperitoneal injection, i.p.) prevented or attenuated the formation of atherosclerotic plaques in HCD-BAD rats or HCD-ApoE(-/-) mice. Gene expression analysis of vessel tissues from these animals showed that OEA induced the mRNA expressions of PPAR-α and downregulated the expression of M-CFS, an atherosclerotic marker, and genes involved in oxidation and inflammation, including iNOS, COX-2, TNF-α and IL-6. Collectively, our results suggested that OEA exerted a pharmacological effect on modulating atherosclerotic plaque formation through the inhibition of LDL modification in vascular system and therefore be a potential candidate for anti-atherosclerosis drug.
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Affiliation(s)
- Angran Fan
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Xiaofeng Wu
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Huijuan Wu
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Long Li
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Rui Huang
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Yueyong Zhu
- Division of Liver Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Yan Qiu
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Jin Fu
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Jie Ren
- Department of Medical Science, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Chenggang Zhu
- School of Life Sciences, Fudan University, Shanghai, China
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Abstract
BACKGROUND Most colon cancers start with dysregulated Wnt/β-catenin signalling and remain a major therapeutic challenge. Examining whether HAMLET (human α-lactalbumin made lethal to tumour cells) may be used for colon cancer treatment is logical, based on the properties of the complex and its biological context. OBJECTIVE To investigate if HAMLET can be used for colon cancer treatment and prevention. Apc(Min)(/+) mice, which carry mutations relevant to hereditary and sporadic human colorectal tumours, were used as a model for human disease. METHOD HAMLET was given perorally in therapeutic and prophylactic regimens. Tumour burden and animal survival of HAMLET-treated and sham-fed mice were compared. Tissue analysis focused on Wnt/β-catenin signalling, proliferation markers and gene expression, using microarrays, immunoblotting, immunohistochemistry and ELISA. Confocal microscopy, reporter assay, immunoprecipitation, immunoblotting, ion flux assays and holographic imaging were used to determine effects on colon cancer cells. RESULTS Peroral HAMLET administration reduced tumour progression and mortality in Apc(Min)(/+) mice. HAMLET accumulated specifically in tumour tissue, reduced β-catenin and related tumour markers. Gene expression analysis detected inhibition of Wnt signalling and a shift to a more differentiated phenotype. In colon cancer cells with APC mutations, HAMLET altered β-catenin integrity and localisation through an ion channel-dependent pathway, defining a new mechanism for controlling β-catenin signalling. Remarkably, supplying HAMLET to the drinking water from the time of weaning also significantly prevented tumour development. CONCLUSIONS These data identify HAMLET as a new, peroral agent for colon cancer prevention and treatment, especially needed in people carrying APC mutations, where colon cancer remains a leading cause of death.
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Affiliation(s)
- Manoj Puthia
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, , Lund, Sweden
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Hiraoka K, Mota De Queiroz A, Aparecida Marinho S, Costa Pereira AA, Costa Hanemann JA. Sclerotherapy with monoethanolamine oleate in benign oral vascular lesions. Minerva Stomatol 2012; 61:31-36. [PMID: 22274308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM The aim of the present study was to carry out a retrospective survey at the Stomatology Clinic of a federal university in Brazil of 411 dental charts for the assessment of vascular tumors. METHODS After the determination of the sample, the following clinical patient information was recorded: gender, age, ethnic background, marital status, profession, place of birth, clinical diagnosis, anatomic site and tumor size. RESULTS Among all patients treated, 4.4% had benign vascular tumors in the oral cavity. The majority of these tumors were asymptomatic, with a purplish, bluish or reddish coloration and of variable size. A clinical examination and vitropressure were essential to the diagnosis. The most affected age group was 60 to 75 years. Vascular tumors most often affected white individuals and the female gender. The most common anatomic site was the tongue, followed by the buccal mucosa. Treatment with sclerotherapy proved effective, with complete regression in 94.5% of the tumors. CONCLUSION The majority of patients demonstrated wholehearted acceptance of the treatment and side effects following the administration of the substance were slight. Sclerotherapy is a simple, low-cost method of safe and easy execution, allowing the elimination of surgical trauma and a lesser risk of hemorrhage.
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Affiliation(s)
- K Hiraoka
- Department of Clinical Dentistry and Surgery School of Dentistry, Federal University of Alfenas (UNIFAL)Alfenas, Minas Gerais, Brazil
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Avila-Martin G, Galan-Arriero I, Gómez-Soriano J, Taylor J. Treatment of rat spinal cord injury with the neurotrophic factor albumin-oleic acid: translational application for paralysis, spasticity and pain. PLoS One 2011; 6:e26107. [PMID: 22046257 PMCID: PMC3202524 DOI: 10.1371/journal.pone.0026107] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Accepted: 09/19/2011] [Indexed: 01/11/2023] Open
Abstract
Sensorimotor dysfunction following incomplete spinal cord injury (iSCI) is often characterized by the debilitating symptoms of paralysis, spasticity and pain, which require treatment with novel pleiotropic pharmacological agents. Previous in vitro studies suggest that Albumin (Alb) and Oleic Acid (OA) may play a role together as an endogenous neurotrophic factor. Although Alb can promote basic recovery of motor function after iSCI, the therapeutic effect of OA or Alb-OA on a known translational measure of SCI associated with symptoms of spasticity and change in nociception has not been studied. Following T9 spinal contusion injury in Wistar rats, intrathecal treatment with: i) Saline, ii) Alb (0.4 nanomoles), iii) OA (80 nanomoles), iv) Alb-Elaidic acid (0.4/80 nanomoles), or v) Alb-OA (0.4/80 nanomoles) were evaluated on basic motor function, temporal summation of noxious reflex activity, and with a new test of descending modulation of spinal activity below the SCI up to one month after injury. Albumin, OA and Alb-OA treatment inhibited nociceptive Tibialis Anterior (TA) reflex activity. Moreover Alb-OA synergistically promoted early recovery of locomotor activity to 50 ± 10% of control and promoted de novo phasic descending inhibition of TA noxious reflex activity to 47 ± 5% following non-invasive electrical conditioning stimulation applied above the iSCI. Spinal L4-L5 immunohistochemistry demonstrated a unique increase in serotonin fibre innervation up to 4.2 ± 1.1 and 2.3 ± 0.3 fold within the dorsal and ventral horn respectively with Alb-OA treatment when compared to uninjured tissue, in addition to a reduction in NR1 NMDA receptor phosphorylation and microglia reactivity. Early recovery of voluntary motor function accompanied with tonic and de novo phasic descending inhibition of nociceptive TA flexor reflex activity following Alb-OA treatment, mediated via known endogenous spinal mechanisms of action, suggests a clinical application of this novel neurotrophic factor for the treatment of paralysis, spasticity and pain.
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Affiliation(s)
- Gerardo Avila-Martin
- Neurología Experimental, Hospital Nacional de Parapléjicos, Servicio de Salud de Castilla-La Mancha, Toledo, Castilla La-Mancha, Spain
| | - Iriana Galan-Arriero
- Neurología Experimental, Hospital Nacional de Parapléjicos, Servicio de Salud de Castilla-La Mancha, Toledo, Castilla La-Mancha, Spain
| | - Julio Gómez-Soriano
- Neurología Experimental, Hospital Nacional de Parapléjicos, Servicio de Salud de Castilla-La Mancha, Toledo, Castilla La-Mancha, Spain
- Escuela de Enfermería y Fisioterapia de Toledo, Universidad de Castilla La-Mancha, Toledo, Castilla-La Mancha, Spain
| | - Julian Taylor
- Neurología Experimental, Hospital Nacional de Parapléjicos, Servicio de Salud de Castilla-La Mancha, Toledo, Castilla La-Mancha, Spain
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Mariano FV, Vargas PA, Della Coletta R, Lopes MA. Sclerotherapy followed by surgery for the treatment of oral hemangioma: a report of two cases. Gen Dent 2011; 59:e121-e125. [PMID: 21903533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hemangiomas, vascular malformations, and varices are common benign vascular lesions in the head and neck region. They can occur in the mouth and primarily affect the lips, tongue, buccal mucosa, and palate. The main types of treatments are surgery and intralesional injection of sclerosant agents. However, other therapies have been considered, such as systemic corticosteroids, laser therapy, interferon a, and cryotherapy. Currently, sclerotherapy is employed largely because of its efficiency and ability to conserve the surrounded tissues. Surgery can be used exclusively or associated with sclerotherapy in lesions that do not show complete resolution. This article describes the cases of two patients with oral hemangiomas that were submitted to sclerotherapy with ethanolamine oleate. Although an important decrease was detected after seven applications in both cases, surgical resection of the residual lesion was performed to achieve optimal results.
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Abstract
PURPOSE To evaluate the outcome and complications of sclerotherapy with injection ethanolamine oleate for the treatment of venous malformations (VMs). METHODS Eighty-three patients' (39 males and 44 females) age ranging from 3 months to 21 years with 85 lesions were followed clinically for about 1 year following treatment with injection of ethanolamine oleate. The cases were enrolled between January 2006 and December 2009. The amount of ethanolamine oleate per treatment session ranged from 0.50 to 10 ml, and maximum dose was 0.40 ml per kg body weight. All patients were evaluated after 8 weeks of last injection session. All of the treatment sessions were performed on a day-case basis. RESULTS Eighty-five lesions have under gone 201 sclerotherapy sessions with 39 requiring one, 27 requiring two and 19 lesions requiring more than two sessions. Sclerotherapy with ethanolamine oleate provided complete resolution of symptoms in 79 lesions and significant improvement of 6 lesions. There is no recurrence of studied patients. All patients experienced pain and swelling to a variable degree for short duration. Skin sloughed out in four patients which were healed spontaneously. No other complications were observed in our study. CONCLUSION The treatment of VMs with injection ethanolamine oleate is safe and effective.
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Affiliation(s)
- Shafiqul Hoque
- Department of Pediatric Surgery, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh.
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Strassburg S, Pfluger PT, Chaudhary N, Tso P, Tschöp MH, Anker SD, Nogueiras R, Perez-Tilve D. Action profile of the antiobesity drug candidate oleoyl-estrone in rats. Obesity (Silver Spring) 2010; 18:2260-7. [PMID: 20339368 DOI: 10.1038/oby.2010.53] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Oleoyl-estrone (OE) has been presented as a potential antiobesity therapeutic, but the published series of studies from one laboratory has not yet been independently confirmed, and the exact mechanism of action is unknown. Based on the hypothesis that OE has potential for the treatment of obesity, male and female rats were chronically treated with several doses of OE to evaluate the impact of this compound on energy metabolism. Body weight, body composition, energy balance parameters and the expression of hypothalamic neuropeptides regulating food intake as well as key markers of the reproductive system were examined. OE impressively reduced food consumption and body weight gain in both sexes. Although a major part of the loss in body weight could be explained by decreased fat mass, a substantial loss of lean mass also occurred after OE administration. The loss of weight can be sufficiently explained by the suppression of food consumption, as there were no major changes in energy expenditure, locomotor activity or respiratory quotient. In situ hybridization data showed no significant change in the expression of key neuropeptides and hormone receptors regulating feeding behavior after OE treatment. Cocaine-amphetamine-regulated transcript (CART) mRNA levels were decreased in the arcuate nucleus of OE-treated rats. Hypogonadism and low plasma testosterone levels were found in OE-treated males, whereas females showed substantially increased liver size. The present data suggest that OE decreases food intake and body weight but also appears to cause a significant impact on the hypothalamus-pituitary-reproductive axis.
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Affiliation(s)
- Sabine Strassburg
- Obesity Research Center, Department of Internal Medicine, University of Cincinnati-Metabolic Diseases Institute, Cincinnati, Ohio, USA
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Sasamoto A, Kamiya J, Nimura Y, Nagino M. Successful embolization therapy for bleeding from jejunal varices after choledochojejunostomy: report of a case. Surg Today 2010. [PMID: 20676866 DOI: 10.1007/s00595-009-4149-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We report a case of successful embolization of jejunal varices that were the cause of massive gastrointestinal bleeding from a choledochojejunostomy site, resulting from obstruction of the extrahepatic portal vein. A 42-year-old man who had undergone choledochojejunostomy for intrahepatic and choledochal stones was readmitted after he started passing massive dark bloody stools. Gastrointestinal endoscopic examination and angiography could not identify the source of bleeding. Percutaneous transhepatic portography showed obstruction of the right branches of the portal vein. The formation of jejunal varices at the site of choledochojejunostomy was revealed by portography and by cholangioscopy, suggesting the varices as the cause of massive bleeding. Bleeding could not be controlled long-term by cholangioscopic sclerosing therapy. We finally stopped the bleeding by embolizing a jejunal vein to the afferent loop.
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Affiliation(s)
- Akitoshi Sasamoto
- Department of Surgery, Shizuoka Kosei Hospital, 23 Kitaban-cho, Aoi-ku, Shizuoka, 420-8623, Japan
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25
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Sasamoto A, Kamiya J, Nimura Y, Nagino M. Successful embolization therapy for bleeding from jejunal varices after choledochojejunostomy: report of a case. Surg Today 2010; 40:788-91. [PMID: 20676866 DOI: 10.1007/s00595-009-4129-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2008] [Accepted: 06/16/2009] [Indexed: 02/06/2023]
Abstract
We report a case of successful embolization of jejunal varices that were the cause of massive gastrointestinal bleeding from a choledochojejunostomy site, resulting from obstruction of the extrahepatic portal vein. A 42-year-old man who had undergone choledochojejunostomy for intrahepatic and choledochal stones was readmitted after he started passing massive dark bloody stools. Gastrointestinal endoscopic examination and angiography could not identify the source of bleeding. Percutaneous transhepatic portography showed obstruction of the right branches of the portal vein. The formation of jejunal varices at the site of choledochojejunostomy was revealed by portography and by cholangioscopy, suggesting the varices as the cause of massive bleeding. Bleeding could not be controlled long-term by cholangioscopic sclerosing therapy. We finally stopped the bleeding by embolizing a jejunal vein to the afferent loop.
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Affiliation(s)
- Akitoshi Sasamoto
- Department of Surgery, Shizuoka Kosei Hospital, 23 Kitaban-cho, Aoi-ku, Shizuoka, 420-8623, Japan
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Kamaraj G, Rana SK, Srinivasan VA. Serological response in cattle immunized with inactivated oil and Algel adjuvant vaccines against infectious bovine rhinotracheitis. New Microbiol 2009; 32:135-141. [PMID: 19579689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Infectious bovine rhinotracheitis (IBR) virus was grown in Madin Darby bovine kidney (MDBK) cell line using a roller culture system for its large-scale production. Optimum multiplicity of infection (MOI) of 1:750 was found to give consistent virus yield. To determine the appropriate payload, three batches of antigen with virus titres ranging from 10(8.37) to 10(6.37) TCID50 per ml were used to prepare experimental inactivated IBR oil adjuvant vaccine. Beta-propiolactone (BPL) was used as inactivant. The vaccine formulation using inactivated BHV-1 virus antigen with a pre-inactivation titer of 10(8.37) TCID50 per dose elicited better sero-conversion in cattle calves as evidenced from the mean log SN titre of 1.02. To choose the appropriate adjuvant, two batches of vaccine each containing aluminum hydroxide gel (Algel) and Montanide oil respectively were tested in calves. Two groups of 16 calves each were inoculated with Algel and oil adjuvant vaccine respectively twice at four weeks to test the immunogenicity. Adequate titres of vaccine induced anti BHV-1 antibodies could be demonstrated both by ELISA and MNT up to 180 days post vaccination in both the groups.
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Affiliation(s)
- G Kamaraj
- Research and Development Centre, Indian Immunologicals Ltd. Gachibowli, Hyderabad, India
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del Mar Romero M, Fernández-López JA, Esteve M, Alemany M. Site-related white adipose tissue lipid-handling response to oleoyl-estrone treatment in overweight male rats. Eur J Nutr 2009; 48:291-9. [PMID: 19326039 DOI: 10.1007/s00394-009-0013-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Accepted: 02/27/2009] [Indexed: 01/18/2023]
Abstract
BACKGROUND Oleoyl-estrone (OE) decreases energy intake while maintaining glucose homeostasis, and energy expenditure at the expense of body fat. White adipose tissue (WAT) depots behave differently under starvation, postprandial state and pharmacologically induced lipolysis. AIM OF THE STUDY To understand the mechanism of massive lipid loss from WAT elicited by OE treatment. METHODS We used overweight male rats. Rats receiving OE (10 nmol/g) gavages were compared with controls and a pair-fed group. Whole fat pads from the mesenteric, retroperitoneal, epididymal and inguinal subcutaneous sites were excised and analyzed for lipid, DNA, mRNA and the expression of lipogenic, fatty acid transporters and lipase genes. RESULTS In OE and pair-fed rats, WAT weights decreased, with the limited loss of cells. Patterns of gene expression in most WAT sites were similar for OE and PF, suggesting a shared mechanism of fat mobilization, but in mesenteric WAT, PF increased lipogenic and fatty acid transporter gene expressions. However, OE inhibited lipogenic expressions more deeply than PF. CONCLUSIONS White adipose tissue sites showed different expression patterns, hinting at relatively specialized functions in fat storage; thus, single site analyses cannot be extrapolated to whole WAT. Differences between mesenteric and the other sites suggest that 'visceral fat' should be reserved for this site only, and not applied to other abdominal fat depots (epididymal, retroperitoneal).
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Affiliation(s)
- María del Mar Romero
- Department of Nutrition and Food Science, Faculty of Biology, University of Barcelona, Barcelona, Spain.
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Suardíaz M, Estivill-Torrús G, Goicoechea C, Bilbao A, Rodríguez de Fonseca F. Analgesic properties of oleoylethanolamide (OEA) in visceral and inflammatory pain. Pain 2007; 133:99-110. [PMID: 17449181 DOI: 10.1016/j.pain.2007.03.008] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2006] [Revised: 01/15/2007] [Accepted: 03/07/2007] [Indexed: 10/23/2022]
Abstract
Oleoylethanolamide (OEA) is a natural fatty acid amide that mainly modulates feeding and energy homeostasis by binding to peroxisome proliferator-activated receptor-alpha (PPAR-alpha) [Rodríguez de Fonseca F, Navarro M, Gómez R, Escuredo L, Navas F, Fu J, et al. An anorexic lipid mediator regulated by feeding. Nature 2001;414:209-12; Fu J, Gaetani S, Oveisi F, Lo Verme J, Serrano A, Rodríguez de Fonseca F, et al. Oleoylethanolamide regulates feeding and body weight through activation of the nuclear receptor PPAR-alpha. Nature 2003;425:90-3]. Additionally, it has been proposed that OEA could act via other receptors, including the vanilloid receptor (TRPV1) [Wang X, Miyares RL, Ahern GP. Oleoylethanolamide excites vagal sensory neurones, induces visceral pain and reduces short-term food intake in mice via capsaicin receptor TRPV1. J Physiol 2005;564:541-7.] or the GPR119 receptor [Overton HA, Babbs AJ, Doel SM, Fyfe MC, Gardner LS, Griffin G, et al. Deorphanization of a G protein-coupled receptor for oleoylethanolamide and its use in the discovery of small-molecule hypophagic agents. Cell Metab 2006;3:167-175], suggesting that OEA might subserve other physiological roles, including pain perception. We have evaluated the effect of OEA in two types of nociceptive responses evoked by visceral and inflammatory pain in rodents. Our results suggest that OEA has analgesic properties reducing the nociceptive responses produced by administration of acetic acid and formalin in two experimental animal models. Additional research was performed to investigate the mechanisms underlying this analgesic effect. To this end, we evaluated the actions of OEA in mice null for the PPAR-alpha receptor gene and compared its actions with those of PPAR-alpha receptor wild-type animal. We also compared the effect of MK-801 in order to evaluate the role of NMDA receptor in this analgesia. Our data showed that OEA reduced visceral and inflammatory responses through a PPAR-alpha-activation independent mechanism. Co-administration of subanalgesic doses of MK-801 and OEA produced an analgesic effect, suggesting the participation of glutamatergic transmission in the antinociceptive effect of OEA. This study represents a novel approach to the examination of the effectiveness of OEA in nociceptive responses and provides a framework for understanding its biological functions and endogenous targets in visceral and inflammatory pain.
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Affiliation(s)
- Margarita Suardíaz
- Fundación IMABIS, Unidad de Investigación, Hospital Universitario Carlos Haya, Málaga 29010, Spain
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Wei XY, Yang JY, Dong YX, Wu CF. Anxiolytic-like effects of oleamide in group-housed and socially isolated mice. Prog Neuropsychopharmacol Biol Psychiatry 2007; 31:1189-95. [PMID: 17521793 DOI: 10.1016/j.pnpbp.2007.04.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Revised: 04/14/2007] [Accepted: 04/16/2007] [Indexed: 11/24/2022]
Abstract
Oleamide (cis-9,10-octadecenoamide) is an endogenous sleep-inducing lipid and prototypic member of a new class of biological signaling molecules identified in recent years. In the present study, the anxiolytic-like effect of oleamide was studied in several experimental models of anxiety in group-housed and socially isolated mice. As the results show, socially isolated mice exhibited an anxiogenic-like profile in the elevated plus-maze test, the light/dark test, and the hole-board test, which could be significantly reversed by oleamide (10 or 20 mg/kg, i.p.). Moreover, oleamide significantly reduced the anxiety levels in grouped-housed mice. In the isolation-induced aggressive test, oleamide markedly reduced the attacking duration and increased the attacking latency. It is concluded that oleamide has an anxiolytic-like effect in socially isolated or group-housed mice, which suggests that fatty acid amides might be involved in the regulation of anxiety-related behavior in mice.
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Affiliation(s)
- Xiu Yan Wei
- Department of Pharmacology, Shenyang Pharmaceutical University, 110016 Shenyang, PR China
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Naik MN, Honavar SG, Murthy RK, Raizada K, Thomas R. Ethanolamine Oleate Sclerotherapy Versus Simple Cyst Aspiration in the Management of Orbitopalpebral Cyst Associated With Congenital Microphthalmos. Ophthalmic Plast Reconstr Surg 2007; 23:307-11. [PMID: 17667104 DOI: 10.1097/iop.0b013e3180987243] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To evaluate the efficacy of ethanolamine oleate (EO) sclerotherapy in the management of orbitopalpebral cysts associated with congenital microphthalmos, and compare it with simple cyst aspiration. METHODS Retrospective, interventional comparative case series of 12 orbitopalpebral cysts of 8 patients associated with congenital microphthalmos. Five cysts were treated with simple aspiration and 7 cysts with EO sclerotherapy. Cyst resolution was the main outcome measure. RESULTS Five cysts underwent aspiration alone at a median age of 12 weeks. One (20%; 95% CI, 0%-55.1%) of these 5 showed complete resolution. Seven cysts (6 patients) underwent aspiration combined with EO sclerotherapy at a median age of 30 weeks (3 had recurred following prior cyst aspiration). Postsclerotherapy, 6 eyes (85.7%; 95% CI, 59.8%-100%) showed complete cyst resolution (p = 0.072, Fisher exact test). The mean follow-up was 8.8 months (range, 3-23 months). In the EO group, 1 cyst (14.3%) required repeat sclerotherapy and another cyst showed partial resolution at 6 weeks. The number needed to treat with sclerotherapy to prevent 1 recurrence was 2 (1-5, 95% CI). No procedure-related complications were noted. CONCLUSIONS Simple aspiration of orbitopalpebral cyst is associated with a high recurrence rate and should be reserved for early prognostication of visual potential in the microphthalmic eye. Minimally invasive EO sclerotherapy provides a rapid, effective, and uncomplicated treatment modality for definitive therapy, and should be preferred in cases with no visual prognosis in the microphthalmic eye demonstrating adequate bony orbital expansion.
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Affiliation(s)
- Milind N Naik
- Ophthalmic Plastic Surgery Service, LV Prasad Eye Institute, Hyderabad, India.
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Valmori D, Souleimanian NE, Tosello V, Bhardwaj N, Adams S, O'Neill D, Pavlick A, Escalon JB, Cruz CM, Angiulli A, Angiulli F, Mears G, Vogel SM, Pan L, Jungbluth AA, Hoffmann EW, Venhaus R, Ritter G, Old LJ, Ayyoub M. Vaccination with NY-ESO-1 protein and CpG in Montanide induces integrated antibody/Th1 responses and CD8 T cells through cross-priming. Proc Natl Acad Sci U S A 2007; 104:8947-52. [PMID: 17517626 PMCID: PMC1885608 DOI: 10.1073/pnas.0703395104] [Citation(s) in RCA: 248] [Impact Index Per Article: 14.6] [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: 02/22/2007] [Indexed: 01/05/2023] Open
Abstract
The use of recombinant tumor antigen proteins is a realistic approach for the development of generic cancer vaccines, but the potential of this type of vaccines to induce specific CD8(+) T cell responses, through in vivo cross-priming, has remained unclear. In this article, we report that repeated vaccination of cancer patients with recombinant NY-ESO-1 protein, Montanide ISA-51, and CpG ODN 7909, a potent stimulator of B cells and T helper type 1 (Th1)-type immunity, resulted in the early induction of specific integrated CD4(+) Th cells and antibody responses in most vaccinated patients, followed by the development of later CD8(+) T cell responses in a fraction of them. The correlation between antibody and T cell responses, together with the ability of vaccine-induced antibodies to promote in vitro cross-presentation of NY-ESO-1 by dendritic cells to vaccine-induced CD8(+) T cells, indicated that elicitation of NY-ESO-1-specific CD8(+) T cell responses by cross-priming in vivo was associated with the induction of adequate levels of specific antibodies. Together, our data provide clear evidence of in vivo cross-priming of specific cytotoxic T lymphocytes by a recombinant tumor antigen vaccine, underline the importance of specific antibody induction for the cross-priming to occur, and support the use of this type of formulation for the further development of efficient cancer vaccines.
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Affiliation(s)
- Danila Valmori
- *Ludwig Institute Clinical Trial Center, Columbia University, New York, NY 10032
| | | | - Valeria Tosello
- *Ludwig Institute Clinical Trial Center, Columbia University, New York, NY 10032
| | - Nina Bhardwaj
- New York University School of Medicine, New York, NY 10016
| | - Sylvia Adams
- New York University School of Medicine, New York, NY 10016
| | - David O'Neill
- New York University School of Medicine, New York, NY 10016
| | - Anna Pavlick
- New York University School of Medicine, New York, NY 10016
| | | | | | | | | | - Gregory Mears
- Division of Medical Oncology, Columbia University Medical Center, New York, NY 10032; and
| | - Susan M. Vogel
- Division of Medical Oncology, Columbia University Medical Center, New York, NY 10032; and
| | - Linda Pan
- Ludwig Institute for Cancer Research, New York, NY 10158
| | | | | | - Ralph Venhaus
- Ludwig Institute for Cancer Research, New York, NY 10158
| | - Gerd Ritter
- Ludwig Institute for Cancer Research, New York, NY 10158
| | - Lloyd J. Old
- Ludwig Institute for Cancer Research, New York, NY 10158
| | - Maha Ayyoub
- *Ludwig Institute Clinical Trial Center, Columbia University, New York, NY 10032
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Takuma Y, Nouso K, Takayama H, Makino Y, Saito S, Tanaka S, Ogata M, Ohta T, Kubota J, Iwamuro M. Gastric ulcer after prophylactic balloon-occluded retrograde transvenous obliteration. J Gastroenterol 2007; 42:257-60. [PMID: 17380286 DOI: 10.1007/s00535-006-2000-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2006] [Accepted: 12/12/2006] [Indexed: 02/07/2023]
Abstract
A 74-year-old man with compensated hepatitis C virus-related liver cirrhosis was admitted for the treatment of small hepatocellular carcinoma (HCC) by radiofrequency ablation therapy (RFA). As a routine pretreatment examination, gastrointestinal endoscopy was performed, and large nodular varices were observed in the gastric fornix, with telangiectasia on top of the varices. As soon as the RFA was completed, prophylactic balloon-occluded retrograde transvenous obliteration (B-RTO) was performed. Seven days after the B-RTO, the patient complicated of upper abdominal pain. Gastrointestinal endoscopy was performed, and a deep ulcer, located at the top of the tumor-shaped gastric varices, was found. The ulcer showed rapid healing after 1-week administration of a proton pump inhibitor (PPI). A severe ulcer after a B-RTO procedure, is extremely rare, because sclerosing agents rarely flow into the gastric mucosa. The ulcer in this patient was deep and large, and it may have been due to direct mucosal damage caused by the sclerosing agent, because mucosal telangiectasia on top of the varices was observed before the B-RTO. It is likely that, in this patient, the mucosal vessels communicated with the submucosal large varices, and ethanolamine oleate (EOI) flowed into the gastric mucosa via this communication. Based on our experience, we recommend periodic follow-up endoscopy.
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Affiliation(s)
- Yoshitaka Takuma
- Department of Internal Medicine, National Hospital Organization Iwakuni Clinical Center, 2-5-1 Kuroiso-cho, Iwakuni, Yamaguchi, 740-8510, Japan
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Imazu H, Kojima K, Katsumura M, Omar S. Is there an alternative therapy to cyanoacrylate injection for safe and effective obliteration of bleeding gastric varices. World J Gastroenterol 2006; 12:5587. [PMID: 17007008 PMCID: PMC4088253 DOI: 10.3748/wjg.v12.i34.5587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Flameng W, Meuris B, Yperman J, De Visscher G, Herijgers P, Verbeken E. Factors influencing calcification of cardiac bioprostheses in adolescent sheep. J Thorac Cardiovasc Surg 2006; 132:89-98. [PMID: 16798307 DOI: 10.1016/j.jtcvs.2006.02.036] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2005] [Revised: 12/11/2005] [Accepted: 02/06/2006] [Indexed: 12/01/2022]
Abstract
OBJECTIVE We determined the possible effects of age, antimineralization treatments, circulatory implant conditions, prosthesis design, and valve-related structural aspects on valve calcification in adolescent sheep. METHODS Calcium content was measured by means of atomic absorption spectrometry in bioprostheses implanted in 120 sheep (age <1 year) for a period of 3 or 6 months. RESULTS Bioprostheses calcified significantly in adolescent sheep, but the extent of calcification was multifactorial. Multivariate analysis of the calcium content reveals that age, mitral or pulmonary implant position, prosthesis design (stented or stentless), structure (porcine or pericardial, wall portion or cusp), and antimineralization treatment are independent factors influencing calcification; implant duration beyond 3 months was not. In juvenile sheep (age 5 months) the wall portion, as well as the cusps of the prosthesis, calcified significantly more than in adolescent sheep (age 11 months). Irrespective of age, the cusps of valves implanted in the mitral position calcified more than those in the pulmonary position. The wall portion of stentless valves calcified more than that of stented valves, and pericardial valves calcified less than porcine valves. The surfactant (Tween 80, No-React, and alpha-amino-oleic acid) and alcohol (ethanol and octanediol) treatment significantly reduced cusp calcification; sodium dodecylsulfate did not. None of the anticalcification treatments was able to prevent wall calcification in stentless porcine valves. CONCLUSION These findings suggest that tissue valve calcification is determined by many independent factors, which can be identified by using adolescent sheep as a preclinical in vivo model.
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Affiliation(s)
- Willem Flameng
- Laboratory of Experimental Cardiac Surgery, Department of Cardiovascular Diseases, Katholieke Universiteit Leuven, Leuven, Belgium.
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Abstract
Vascular anomalies are comprised of either hemangiomas or vascular malformations.Low-flow vascular malformations can be divided into capillary, venous, and lymphatic types and are usually present at birth, undergo pari passu growth, and produce symptoms related to mass effect or stasis. High-flow malformations are comprised pre-dominantly of arteriovenous malformations that follow a more aggressive clinical course of hyperemia, adjacent mass effect, steal phenomenon, tissue destruction, and ultimately high output failure. Ultrasound, CT, nuclear medicine, angiography, and particularly MRI have greatly enhanced diagnostic accuracy and provide detailed information for percutaneous and surgical treatment planning and an objective means of following therapeutic efficacy. Interventional radiologic percutaneous sclerotherapy for low-flow lesions and embolosclerotherapy for high-flow lesions with or without adjunctive surgical intervention have become the mainstay of therapy.
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Affiliation(s)
- Gerald M Legiehn
- Department of Radiology, Division of Interventional Radiology, Vancouver General Hospital, University of British Columbia, 899 West Twelfth Avenue, Vancouver, British Columbia, Canada, V5Z 1M9.
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Anan A, Irie M, Watanabe H, Sohda T, Iwata K, Suzuki N, Yoshikane M, Nakane H, Hashiba T, Yokoyama M, Higashihara H, Okazaki M, Sakisaka S. Colonic varices treated by balloon-occluded retrograde transvenous obliteration in a cirrhotic patient with encephalopathy: a case report. Gastrointest Endosc 2006; 63:880-4. [PMID: 16650568 DOI: 10.1016/j.gie.2005.11.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2005] [Accepted: 11/27/2005] [Indexed: 12/11/2022]
Affiliation(s)
- Akira Anan
- Third Department of Internal Medicine, Department of Emergency and Critical Care Medicine, Fukuoka University School of Medicine, Fukuoka, Japan
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Lee YJ, Chung DY, Lee SJ, Ja Jhon G, Lee YS. Enhanced radiosensitization of p53 mutant cells by oleamide. Int J Radiat Oncol Biol Phys 2006; 64:1466-74. [PMID: 16580498 DOI: 10.1016/j.ijrobp.2005.11.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2005] [Revised: 11/27/2005] [Accepted: 11/29/2005] [Indexed: 01/28/2023]
Abstract
PURPOSE Effect of oleamide, an endogenous fatty-acid primary amide, on tumor cells exposed to ionizing radiation (IR) has never before been explored. METHODS AND MATERIALS NCI H460, human lung cancer cells, and human astrocytoma cell lines, U87 and U251, were used. The cytotoxicity of oleamide alone or in combination with IR was determined by clonogenic survival assay, and induction of apoptosis was estimated by FACS analysis. Protein expressions were confirmed by Western blotting, and immunofluorescence analysis of Bax by use of confocal microscopy was also performed. The combined effect of IR and oleamide to suppress tumor growth was studied by use of xenografts in the thighs of nude mice. RESULTS Oleamide in combination with IR had a synergistic effect that decreased clonogenic survival of lung-carcinoma cell lines and also sensitized xenografts in nude mice. Enhanced induction of apoptosis of the cells by the combined treatment was mediated by loss of mitochondrial membrane potential, which resulted in the activation of caspase-8, caspase-9, and caspase-3 accompanied by cytochrome c release and Bid cleavage. The synergistic effects of the combined treatment were more enhanced in p53 mutant cells than in p53 wild-type cells. In p53 wild-type cells, both oleamide and radiation induced Bax translocation to mitochondria. On the other hand, in p53 mutant cells, radiation alone slightly induced Bax translocation to mitochondria, whereas oleamide induced a larger translocation. CONCLUSIONS Oleamide may exhibit synergistic radiosensitization in p53 mutant cells through p53-independent Bax translocation to mitochondria.
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Affiliation(s)
- Yoon-Jin Lee
- Laboratory of Radiation Effect, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
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Matsumoto A, Takimoto K. Gastric fundal varices: new aspects of nonsurgical treatment in Japan. ACTA ACUST UNITED AC 2006; 3:4-5. [PMID: 16397587 DOI: 10.1038/ncpgasthep0364] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2005] [Accepted: 11/02/2005] [Indexed: 01/10/2023]
Affiliation(s)
- Akio Matsumoto
- Department of Gastroenterology, Racto Clinic, Takehana, Kyoto, Japan.
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Nishikawa M, Sakamoto K, Hidaka M, Yamashita A, Yamamoto G. Venous malformation of the tongue in a child treated by sclerotherapy with ethanolamine oleate: a case report. J Pediatr Surg 2006; 41:599-600. [PMID: 16516646 DOI: 10.1016/j.jpedsurg.2005.12.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We describe a 3-year-old boy with a huge venous malformation (VM) in the tongue, which was treated by direct injection of ethanolamine oleate (EO). After the injection of 5% EO, the VM shrank and good tongue movement was obtained without problematic side effects. Our findings in this case suggest that sclerotherapy with EO is a safe and effective method for treating VM in the oral region.
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Affiliation(s)
- Masanori Nishikawa
- Department of Oral and Maxillofacial Surgery, Shiga University of Medical Science, Shiga 520-2192, Japan.
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Abstract
OBJECTIVE The combined effects of limited food intake and OE treatment have been analysed in order to determine whether hypocaloric diets enhance the slimming effects of OE on mature overweight male rats. Two levels of dietary limitation at 50 and 25% of a standard intake were established, roughly corresponding to the human LCDs and VLCDs. DESIGN Wistar male rats (6 weeks old) were made overweight by a cafeteria diet. After transition to standard diet, they were subjected to food restriction: down to 50 or 25% with respect to the transition period. Half the animals were given daily oral gavages of 10 nmol/g oleoyl-estrone (OE), and the rest received only the vehicle during 10 days. MEASUREMENTS Changes in weight and body composition: water, lipid, protein or gross energy were determined by comparing the final pool size with that of day 0, calculated from the initial body weight and the composition of untreated rats. Energy and nitrogen balances were estimated. Plasma levels of metabolites and hormones were also measured. RESULTS OE induced changes in body composition similar to those elicited by a 50% reduction in food, with massive loss of lipid and energy. OE-treated rats ate less than the controls, but additional effects on body composition on reduced diet were minimal. OE improved metabolic homoeostasis: better maintained glycaemia, lower cholesterol and shallower hormonal changes, but at the expense of slightly increased protein mobilisation. CONCLUSIONS The data presented suggest that no advantages are accomplished by combining OE treatment and hypocaloric diets compared with OE alone, at least under the experimental conditions tested, since the effects were not additive. Despite OE affecting food intake, mechanisms other than that are deemed responsible for the mobilisation of body fat, since intake alone cannot explain the effects on body weight, nor the metabolic and hormonal changes in OE-treated rats. It is concluded that the combination of food restriction and OE may result in unwanted increased protein mobilisation with no synergy between both slimming treatments.
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Affiliation(s)
- M M Romero
- Departament de Nutrició i Bromatologia, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
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Abstract
Intramuscular hemangioma is a rare but important cause of pain and potentially decreased performance in athletes. These benign tumors occur more often in the lower extremity and usually present during the first three decades of life. Symptomatic intramuscular hemangiomas usually present with pain and swelling, which often worsen with activity. Diagnosis can be difficult, resulting in frustration and prolonged activity limitations for these patients. Magnetic resonance imaging and clinical findings can often suggest the diagnosis. Recommended treatment is usually wide total excision, but there are certain cases in which excision is not possible. In difficult areas such as the hands or feet, a sclerosing agent can be injected into the hemangioma to reduce the size of the hemangioma, decrease pain, and improve function.
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Affiliation(s)
- Steve J Wisniewski
- Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
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Miyamoto M, Oka M, Izumiya T, Nagaoka T, Ishihara Y, Ueda K, Enomoto S, Yanaoka K, Arii K, Tamai H, Shimizu Y, Ichinose M. Nonparasitic solitary giant hepatic cyst causing obstructive jaundice was successfully treated with monoethanolamine oleate. Intern Med 2006; 45:621-5. [PMID: 16755093 DOI: 10.2169/internalmedicine.45.1408] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
A 77-year-old man hospitalized for epigastric pain showed jaundice of the skin and conjunctivae. Laboratory tests revealed elevated hepatobiliary enzymes and inflammatory markers, and imaging studies demonstrated a 12 cm hepatic cyst compressing the common bile duct. The diagnosis was a giant hepatic cyst causing obstructive jaundice. Cyst drainage and sclerotherapy with 5% monoethanolamine oleate was performed twice, resulting in almost complete disappearance of the cyst. Obstructive jaundice due to a hepatic cyst, as seen in this case, is relatively rare and this report includes a review of other similar cases in Japan.
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Kojima K, Imazu H, Matsumura M, Honda Y, Umemoto N, Moriyasu H, Orihashi T, Uejima M, Morioka C, Komeda Y, Uemura M, Yoshiji H, Fukui H. Sclerotherapy for gastric fundal variceal bleeding: is complete obliteration possible without cyanoacrylate? J Gastroenterol Hepatol 2005; 20:1701-6. [PMID: 16246189 DOI: 10.1111/j.1440-1746.2005.03992.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Many studies have suggested that endoscopic obliteration using cyanoacrylate for bleeding gastric fundal varices is effective. However, serious complications by injection of cyanoacrylate into varices have also been reported. METHODS Thirty patients with bleeding gastric fundal varices underwent endoscopic injection sclerotherapy using 5% ethanolamine oleate under fluoroscopic guidance plus infusion of vasopressin and a transdermal nitroglycerin patch. The injection of 5% ethanolamine oleate was continued until it filled the varices and their feeder veins under fluoroscopic guidance. The injection needle was removed while thrombin glue was sprayed at the puncture site through the side hole of the injector needle to prevent bleeding from the puncture site. RESULTS Complete hemostasis was achieved in 28/30 patients (93.3%). The cumulative rebleeding rate after 1, 3 and 5 years was 13%, 19% and 19%, respectively. The 1-, 3-, and 5-year cumulative mortality rates were 31%, 54% and 59%, respectively. There was no complication related to infusion of vasopressin and sclerotherapy procedure. CONCLUSION The sclerotherapy method carried out using 5% ethanolamine oleate combined with infusion of vasopressin under fluoroscopic guidance might be a feasible method for obliteration of gastric fundal varices as an alternative to cyanoacrylate.
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Affiliation(s)
- Kuniyuki Kojima
- Third Department of Internal Medicine, Nara Medical University Hospital, Kashihara-shi, Nara, Japan
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Yamamoto K, Sakaguchi H, Anai H, Tanaka T, Morimoto K, Kichikawa K, Uchida H. Sclerotherapy for Simple Cysts with Use of Ethanolamine Oleate: Preliminary Experience. Cardiovasc Intervent Radiol 2005; 28:751-5. [PMID: 16132390 DOI: 10.1007/s00270-004-0277-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
We evaluated the efficacy of ethanolamine oleate (EO) as a sclerosing agent for a symptomatic hepatic or renal cyst. Seven patients with symptomatic hepatic (n = 3) or renal cysts (n = 4) were treated by sclerotherapy with EO. The cyst size in the greater diameter ranged from 6 to 13 cm. The cyst was punctured under ultrasound guidance, and after all of the cyst's content was aspirated, an iodized contrast agent was injected to check the absence of communication between the cyst and biliary tree, urinary tract, or vessels. Then, the solution of ethanolamine oleate-iopamidol mixture (EOI) of 10% of the volume of the cyst's content was injected via catheter. After 30 min, the injected EOI was aspirated completely before catheter removal. A follow-up computed tomography scan was performed at 1 and 3 months after treatment. The volume of the cyst and its reduction rate was calculated. In addition, symptoms and complications were assessed. The volume of the cyst ranged from 64 to 636 ml (mean: 328 ml) before treatment. Three months after treatment, it ranged from 2 to 50 ml (mean: 15ml) and the reduction rate of the cyst's volume was more than 90% on average. Symptoms caused by the cyst disappeared in all cases and no major complication was encountered. Although two patients had a low-grade fever after sclerotherapy, it was easily controlled. It is suggested that the sclerotherapy with EO might be a safe, effective, well-tolerated treatment for symptomatic hepatic or renal cysts.
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Affiliation(s)
- Kiyosei Yamamoto
- Department of Radiology, Nara Medical University, Kashihara, Nara, Japan.
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Naik MN, Murthy RK, Raizada K, Honavar SG. Ethanolamine oleate sclerotherapy in the management of orbito-palpebral cyst associated with congenital microphthalmos. Am J Ophthalmol 2005; 139:939-41. [PMID: 15860316 DOI: 10.1016/j.ajo.2004.11.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2004] [Indexed: 11/18/2022]
Abstract
PURPOSE To report a novel, nonsurgical method of management of orbito-palpebral cyst associated with congenital microphthalmos. DESIGN Interventional case series. METHODS Two patients with orbito-palpebral cyst were included. Case 1 had bilateral orbito-palpebral cyst, whereas case 2 was unilateral. Transcutaneous cyst aspiration in both cases revealed a severely microphthalmic eye with no visual potential. Ethanolamine oleate sclerotherapy was performed immediately after cyst aspiration in both patients. RESULTS Complete resolution of the orbito-palpebral cysts was noted within 6 weeks, and the custom prosthesis was well retained. CONCLUSIONS Ethanolamine oleate sclerotherapy may be an effective minimal intervention treatment option for cosmetic rehabilitation of patients with orbito-palpebral cyst associated with congenital microphthalmos with no visual potential.
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Affiliation(s)
- Milind N Naik
- Division of Ophthalmic Plastic Surgery, Orbit, and Ocular Oncology, LV Prasad Eye Institute, Banjara Hills, Hyderabad 500 034, India.
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Zamora CA, Sugimoto K, Tsurusaki M, Izaki K, Fukuda T, Matsumoto S, Kuwata Y, Kawasaki R, Taniguchi T, Hirota S, Sugimura K. Endovascular obliteration of bleeding duodenal varices in patients with liver cirrhosis. Eur Radiol 2005; 16:73-9. [PMID: 15856238 DOI: 10.1007/s00330-005-2781-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2004] [Revised: 03/22/2005] [Accepted: 04/08/2005] [Indexed: 02/07/2023]
Abstract
The purpose of this paper is to describe our experience with endovascular obliteration of duodenal varices in patients with liver cirrhosis and portal hypertension. Balloon-occluded transvenous retrograde and percutaneous transhepatic anterograde embolizations were performed for duodenal varices in five patients with liver cirrhosis, portal hypertension, and decreased liver function. All patients had undergone previous endoscopic treatments that failed to stop bleeding and were poor surgical candidates. Temporary balloon occlusion catheters were used to achieve accumulation of an ethanolamine oleate-iopamidol mixture inside the varices. Elimination of the varices was successful in all patients. Retrograde transvenous obliteration via efferent veins to the inferior vena cava was enough to achieve adequate sclerosant accumulation in three patients. A combined anterograde-retrograde embolization was used in one patient with balloon occlusion of afferent and efferent veins. Transhepatic embolization through the afferent vein was performed in one patient under balloon occlusion of both efferent and afferent veins. There was complete variceal thrombosis and no bleeding was observed at follow-up. No major complications were recorded. Endovascular obliteration of duodenal varices is a feasible and safe alternative procedure for managing patients with portal hypertension and hemorrhage from this source.
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Affiliation(s)
- Carlos Armando Zamora
- Department of Radiology, Kobe University School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe-shi, Hyogo-ken, 650-0017, Japan.
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Guthmann MD, Bitton RJ, Carnero AJL, Gabri MR, Cinat G, Koliren L, Lewi D, Fernandez LE, Alonso DF, Gómez DE, Fainboim L. Active specific immunotherapy of melanoma with a GM3 ganglioside-based vaccine: a report on safety and immunogenicity. J Immunother 2005; 27:442-51. [PMID: 15534488 DOI: 10.1097/00002371-200411000-00004] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel cancer vaccine was obtained by combining GM3 ganglioside with Neisseria meningitidis outer membrane protein complex to obtain very-small-size proteoliposomes (GM3/VSSP). The authors report the results of a phase 1 study of intramuscular administration of GM3/VSSP/Montanide ISA 51 to patients with metastatic melanoma. Twenty-six patients were included in three dose-level cohorts of 120, 240, and 360 mug. The first five doses (induction phase) were given at 2-week intervals, and the remaining four doses were given monthly. Patients were evaluated for dose-related toxicities and antitumor effects. In addition, serum and peripheral blood mononuclear cells were obtained at baseline and throughout treatment to evaluate humoral and cellular immune responses. One episode of severe hypotension and fever was observed in a patient included at the highest dose level. Other toxicities consisted of local reactions at the site of injection and mild fever and chills. Five doses of GM3/VSSP induced an anti-GM3 IgM response in 44% of patients. Serum reactivity was also observed against melanoma cell lines and tumor biopsies. GM3/VSSP was shown to induce very strong in vitro IFNgamma secretion in all evaluated melanoma patients. Furthermore, in one patient IFNgamma secretion was shown to be GM3-specific. A 62% reduction of a mediastinal mass was documented in one patient (partial response), while a second patient benefited from initial disease stabilization followed by tumor reduction in nonmeasurable soft tissue lesions accompanied by vitiligo.
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Affiliation(s)
- Marcelo D Guthmann
- Immunogenetics Division, Hospital de Clínicas, University of Buenos Aires, Buenos Aires, Argentina
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Ferrer-Lorente R, Cabot C, Fernández-López JA, Remesar X, Alemany M. Effects of oleoyl-estrone with dexfenfluramine, sibutramine or phentermine on overweight rats. Eur J Pharmacol 2005; 513:243-8. [PMID: 15862807 DOI: 10.1016/j.ejphar.2005.02.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2004] [Revised: 11/26/2004] [Accepted: 02/25/2005] [Indexed: 10/25/2022]
Abstract
We studied the combination of oleoyl-estrone with either dexfenfluramine, sibutramine or phentermine in overweight male rats treated for 10 days in order to determine whether they shared a mechanism of action. Oleoyl-estrone, dexfenfluramine and sibutramine decreased body weight and energy (essentially lipids); losses were higher when combined with oleoyl-estrone. Glycemia was maintained except under phentermine; oleoyl-estrone induced decreases in triacylglycerols, cholesterol, insulin and HOMA (homeostasis model assessment). Combination of oleoyl-estrone and sibutramine resulted in the loss of up to 29% body energy in 10 days. Energy expenditure was maintained. The effects of oleoyl-estrone and dexfenfluramine or sibutramine on appetite were substantially additive. All oleoyl-estrone-treated rats showed increased insulin sensitivity. In conclusion, combined treatment of overweight rats with oleoyl-estrone and sibutramine or dexfenfluramine results in a dramatic loss of weight and fat, whilst maintaining circulating energy homoeostasis.
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Affiliation(s)
- Raquel Ferrer-Lorente
- Department of Nutrition and Food Science, Faculty of Biology, University of Barcelona, Av. Diagonal, 645, 08028 Barcelona, Spain
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Zilla P, Bezuidenhout D, Human P. Carbodiimide Treatment Dramatically Potentiates the Anticalcific Effect of Alpha-Amino Oleic Acid on Glutaraldehyde-Fixed Aortic Wall Tissue. Ann Thorac Surg 2005; 79:905-10. [PMID: 15734403 DOI: 10.1016/j.athoracsur.2003.12.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/10/2003] [Indexed: 11/22/2022]
Abstract
BACKGROUND Bifunctional amines were previously found to act as bridging molecules between the terminal ends of incomplete glutaraldehyde (GA) cross-links. The additional cross-links thus formed between -NH2 groups of tissue were seen to significantly inhibit bioprosthetic calcification. In the current study, the potential ability of alpha-amino oleic acid (AOA) to act as a bridging molecule between -NH2- and COOH-dependent cross-links was hypothesized to similarly augment the anticalcification effect of the AOA molecule. METHODS Porcine aortic wall tissue from Medtronic Freestyle valve bioprostheses incorporating the AOA anticalcification process additionally underwent carboxyl-group cross-linking with Jeffamine (poly[propylene glyco]-bis-[aminopropyl ether]) using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC). Tissue was subdermally implanted into 5-week-old Long-Evans rats for 60 days. Standard 0.2% GA-fixed tissue served as a control. To further assess the impact of storage solution on AOA tissue, samples were either stored in GA (0.2%GA) or EDC (25 mmol/L carbodiimide) before implantation. Tissue calcification was assessed by atomic absorption spectroscopy and histochemical staining. RESULTS Aldehyde end-capping with AOA achieved only a modest reduction of calcification in GA-treated aortic wall tissue (-20.0%; p < 0.05). Replacing GA with EDC as a storage solution led to a further 32.4% (p < 0.01) mitigation of calcification in Freestyle tissue. Incorporating an intermediate EDC/Jeffamine cross-linking step achieved a distinct additional reduction of calcification by 40.4% (p < 0.05). Overall, aortic wall calcification was 59.7% (p < 0.0001) lower if commercial Freestyle tissue underwent an additional EDC/Jeffamine cross-linking step and subsequent storage in EDC. Relative to control GA-fixed tissue, this represented a 67.8% (p < 0.0001) reduction. Incorporation of AOA was essential for the beneficial effect of the additional EDC/Jeffamine cross-linking step. CONCLUSIONS Potentially utilizing both the amino- and the carboxyl moieties of AOA for tissue binding dramatically reduces aortic wall calcification of GA-fixed tissue.
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Affiliation(s)
- Peter Zilla
- Chris Barnard Division of Cardiothoracic Surgery, Cape Heart Center, University of Cape Town, Cape Town, South Africa.
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