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Antoniou AI, Nordio G, Di Paolo ML, Colombo E, Gaffuri B, Polito L, Amenta A, Seneci P, Dalla Via L, Perdicchia D, Passarella D. 2-Hydroxyoleic Acid as a Self-Assembly Inducer for Anti-Cancer Drug-Centered Nanoparticles. Pharmaceuticals (Basel) 2023; 16:ph16050722. [PMID: 37242505 DOI: 10.3390/ph16050722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/02/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
A potent nontoxic antitumor drug, 2-hydroxyoleic acid (6, 2OHOA) used for membrane lipid therapy, was selected as a self-assembly inducer due to its ability to form nanoparticles (NPs) in water. For this purpose, it was conjugated with a series of anticancer drugs through a disulfide-containing linker to enhance cell penetration and to secure drug release inside the cell. The antiproliferative evaluation of the synthesized NP formulations against three human tumor cell lines (biphasic mesothelioma MSTO-211H, colorectal adenocarcinoma HT-29, and glioblastoma LN-229) showed that nanoassemblies 16-22a,bNPs exhibit antiproliferative activity at micromolar and submicromolar concentrations. Furthermore, the ability of the disulfide-containing linker to promote cellular effects was confirmed for most nanoformulations. Finally, 17bNP induced intracellular ROS increase in glioblastoma LN-229 cells similarly to free drug 8, and such elevated production was decreased by pretreatment with the antioxidant N-acetylcysteine. Also, nanoformulations 18bNP and 21bNP confirmed the mechanism of action of the free drugs.
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Affiliation(s)
- Antonia I Antoniou
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Giulia Nordio
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | - Maria Luisa Di Paolo
- Dipartimento di Medicina Molecolare, Università degli Studi di Padova, Via G. Colombo 3, 35131 Padova, Italy
| | - Eleonora Colombo
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Beatrice Gaffuri
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Laura Polito
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", SCITEC-CNR, Via G. Fantoli 16/15, 20138 Milano, Italy
| | - Arianna Amenta
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Pierfausto Seneci
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Lisa Dalla Via
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | - Dario Perdicchia
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Daniele Passarella
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
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Morán-Zendejas R, Rodríguez-Menchaca AA. The anti-tumor drug 2-hydroxyoleic acid regulates the oncogenic potassium channel Kv10.1. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2023. [DOI: 10.1186/s43088-023-00354-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Abstract
Background
2-hydroxyoleic acid (2OHOA) is a synthetic fatty acid with antitumor properties that alters membrane composition and structure, which in turn influences the functioning of membrane proteins and cell signaling. In this study, we propose a novel antitumoral mechanism of 2OHOA accomplished through the regulation of Kv10.1 channels. We evaluated the effects of 2OHOA on Kv10.1 channels expressed in HEK-293 cells by using electrophysiological techniques and a cell proliferation assay.
Results
2OHOA increased Kv10.1 channel currents in a voltage-dependent manner, shifted its conductance-voltage relationship towards negative potentials, and accelerated its activation kinetics. Moreover, 2OHOA reduced proliferation of cells that exogenously (HEK-293) and endogenously (MCF-7) expressed Kv10.1 channels. It is worth noting that the antiproliferative effect of 2OHOA was maintained in HEK-293 cells expressing a non-conducting mutant of Kv10.1 channel (Kv10.1-F456A), while it did not affect HEK-293 cells not expressing Kv10.1 channels, suggesting that 2OHOA interferes with a non-conducting function of Kv10.1 channels involved in cell proliferation. Finally, we found that 2OHOA can act synergistically with astemizole, a Kv10.1 channel blocker, to decrease cell proliferation more efficiently.
Conclusion
Our data suggest that 2OHOA decreases cell proliferation, at least in part, by regulating Kv10.1 channels.
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Sessa L, Concilio S, Fominaya J, Eletto D, Piotto S, Busquets X. A new serotonin 2A receptor antagonist with potential benefits in Non-Alcoholic Fatty Liver Disease. Life Sci 2023; 314:121315. [PMID: 36581095 DOI: 10.1016/j.lfs.2022.121315] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 12/28/2022]
Abstract
Peripheral 5-hydroxytryptamine 2A receptor (5-HT2AR) could be a new pharmacological target for NASH, an evolution of NAFLD characterized by hepatic steatosis, cytoskeletal alterations, and hepatic inflammation that can arise with or without fibrosis. SJT4a is a synthetic β-carboline antagonist for 5-HT2AR developed by SJT molecular research to treat NASH. We performed a combined in silico/in vivo study on this potential drug to elucidate its activity and possible mechanism of action. The in silico protocol compares SJT4a with four known 5-HT2AR ligands with different activities (LSD, methiothepin, zotepine, risperidone). We performed molecular docking calculations, evaluation of binding energy by AI-based methods and Molecular Dynamics simulations of the five ligand-target complexes. Moreover, we used a pseudo-semantic analysis to evaluate the potential mechanism of action of SJT4a. In silico predictions and pseudo-semantic analysis suggested antagonistic activity for SJT4a. The in silico prediction was confirmed by [3H]-5HT radioligand binding together with SJT4a competition analysis in CHO-K1 cell cultures expressing 5-HT2AR. SJT4a was then tested in vivo. We investigated the effect of 8 weeks of treatment with SJT4A on metabolic parameters, liver pathology, NAFLD activity score, and fibrosis stage in male DIO-NASH C57BL/6 J mice diet-induced obesity fed with an obesogenic diet compared with DIO-NASH and LEAN-CHOW vehicles. In our tests, SJT4a showed intense activity in diminishing the most relevant hallmarks of NASH in the DIO-NASH mice model. We proposed a possible mode of action for SJT4a based on its 5-HT2AR antagonist activity.
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Affiliation(s)
- Lucia Sessa
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy; Bionam Center for Biomaterials, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy
| | - Simona Concilio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy; Bionam Center for Biomaterials, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy
| | - Jesús Fominaya
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, 07122 Palma, Spain
| | - Daniela Eletto
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy
| | - Stefano Piotto
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy; Bionam Center for Biomaterials, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy.
| | - Xavier Busquets
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, 07122 Palma, Spain.
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Sarkar A, Santoro J, Di Biasi L, Marrafino F, Piotto S. YAMACS: a graphical interface for GROMACS. Bioinformatics 2022; 38:4645-4646. [PMID: 35997557 DOI: 10.1093/bioinformatics/btac573] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 08/22/2022] [Indexed: 12/24/2022] Open
Abstract
SUMMARY A graphical user interface for the GROMACS program has been developed as plugins for YASARA molecular graphics suite. The most significant GROMACS methods can be run entirely via a windowed menu system, and the results are shown on screen in real time. AVAILABILITY AND IMPLEMENTATION YAMACS is written in Python and is freely available for download at https://github.com/YAMACS-SML/YAMACS and is supported on Linux. It has been released under GPL-3.0 license. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Arkadeep Sarkar
- Department of Pharmacy, University of Salerno, Fisciano, SA 84084, Italy
| | - Jacopo Santoro
- Department of Pharmacy, University of Salerno, Fisciano, SA 84084, Italy
| | - Luigi Di Biasi
- Department of Computer Science, University of Salerno, Fisciano, SA 84084, Italy
| | | | - Stefano Piotto
- Department of Pharmacy, University of Salerno, Fisciano, SA 84084, Italy.,Bionam Center for Biomaterials, University of Salerno, Fisciano, SA 84084, Italy
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5
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Golan H, Mechoulam R, Smoum R, Cohen-Zada E, Pri-Chen S, Wiener S, Grinberg I, Bar-Lev DD, Haj CG, Fisher T, Toren A. Anti-Tumorigenic Effect of a Novel Derivative of 2-Hydroxyoleic Acid and the Endocannabinoid Anandamide on Neuroblastoma Cells. Biomedicines 2022; 10:biomedicines10071552. [PMID: 35884854 PMCID: PMC9312959 DOI: 10.3390/biomedicines10071552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 11/21/2022] Open
Abstract
Modulation of the endogenous cannabinoid system has been suggested as a potential anticancer strategy. In the search for novel and less toxic therapeutic options, structural modifications of the endocannabinoid anandamide and the synthetic derivative of oleic acid, Minerval (HU-600), were done to obtain 2-hydroxy oleic acid ethanolamide (HU-585), which is an HU-600 derivative with the anandamide side chain. We showed that treatment of SK-N-SH neuroblastoma cells with HU-585 induced a better anti-tumorigenic effect in comparison to HU-600 as evidenced by 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide assay, colony-forming assay, and migration assay. Moreover, HU-585 demonstrated pro-apoptotic properties shown by increased levels of activated caspase-3 following treatment and a better senescence induction effect in comparison to HU-600, as demonstrated by increased activity of lysosomal β-galactosidase. Finally, we observed that combined treatment of HU-585 with the senolytic drugs ABT-263 in vitro, and ABT-737 in vivo resulted in enhanced anti-proliferative effects and reduced neuroblastoma xenograft growth in comparison to treatment with HU-585 alone. Based on these results, we suggest that HU-585 is a pro-apoptotic and senescence-inducing compound, better than HU-600. Hence, it may be a beneficial option for the treatment of resistant neuroblastoma especially when combined with senolytic drugs that enhance its anti-tumorigenic effects.
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Affiliation(s)
- Hana Golan
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
- Department of Pediatric Hematology Oncology, The Edmond and Lily Safra Children’s Hospital, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Raphael Mechoulam
- Medicinal Chemistry Laboratory, The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (R.M.); (R.S.); (C.G.H.)
| | - Reem Smoum
- Medicinal Chemistry Laboratory, The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (R.M.); (R.S.); (C.G.H.)
| | - Efrat Cohen-Zada
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
| | - Sara Pri-Chen
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
| | - Sapir Wiener
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
| | - Igor Grinberg
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
| | - Dekel D. Bar-Lev
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
| | - Christeeneh G. Haj
- Medicinal Chemistry Laboratory, The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (R.M.); (R.S.); (C.G.H.)
| | - Tamar Fisher
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
| | - Amos Toren
- Pediatric Hematology Oncology Research Laboratory, Cancer Research Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel; (H.G.); (E.C.-Z.); (S.P.-C.); (S.W.); (I.G.); (D.D.B.-L.); (T.F.)
- Department of Pediatric Hematology Oncology, The Edmond and Lily Safra Children’s Hospital, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel
- Correspondence:
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Mishra K, Péter M, Nardiello AM, Keller G, Llado V, Fernandez-Garcia P, Kahlert UD, Barasch D, Saada A, Török Z, Balogh G, Escriba PV, Piotto S, Kakhlon O. Multifaceted Analyses of Isolated Mitochondria Establish the Anticancer Drug 2-Hydroxyoleic Acid as an Inhibitor of Substrate Oxidation and an Activator of Complex IV-Dependent State 3 Respiration. Cells 2022; 11:cells11030578. [PMID: 35159387 PMCID: PMC8834245 DOI: 10.3390/cells11030578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/01/2022] [Accepted: 02/05/2022] [Indexed: 02/04/2023] Open
Abstract
The synthetic fatty acid 2-hydroxyoleic acid (2OHOA) has been extensively investigated as a cancer therapy mainly based on its regulation of membrane lipid composition and structure, activating various cell fate pathways. We discovered, additionally, that 2OHOA can uncouple oxidative phosphorylation, but this has never been demonstrated mechanistically. Here, we explored the effect of 2OHOA on mitochondria isolated by ultracentrifugation from U118MG glioblastoma cells. Mitochondria were analyzed by shotgun lipidomics, molecular dynamic simulations, spectrophotometric assays for determining respiratory complex activity, mass spectrometry for assessing beta oxidation and Seahorse technology for bioenergetic profiling. We showed that the main impact of 2OHOA on mitochondrial lipids is their hydroxylation, demonstrated by simulations to decrease co-enzyme Q diffusion in the liquid disordered membranes embedding respiratory complexes. This decreased co-enzyme Q diffusion can explain the inhibition of disjointly measured complexes I–III activity. However, it doesn’t explain how 2OHOA increases complex IV and state 3 respiration in intact mitochondria. This increased respiration probably allows mitochondrial oxidative phosphorylation to maintain ATP production against the 2OHOA-mediated inhibition of glycolytic ATP production. This work correlates 2OHOA function with its modulation of mitochondrial lipid composition, reflecting both 2OHOA anticancer activity and adaptation to it by enhancement of state 3 respiration.
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Affiliation(s)
- Kumudesh Mishra
- Department of Neurology, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem 9112102, Israel;
- Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 9112102, Israel; (G.K.); (D.B.); (A.S.)
| | - Mária Péter
- Lipodom Ltd., Dorottya Utca 35-37, 6726 Szeged, Hungary; (M.P.); (Z.T.); (G.B.)
- Biological Research Centre, Institute of Biochemistry, 6726 Szeged, Hungary
| | - Anna Maria Nardiello
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy;
- Bionam Center for Biomaterials, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Guy Keller
- Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 9112102, Israel; (G.K.); (D.B.); (A.S.)
- Department of Genetics, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem 9112102, Israel
| | - Victoria Llado
- Laminar Pharmaceuticals, Ctra. de Valldemossa Km. 7, 4 Parc BIT Ed. Naorte Bolque A-1°-3, 07121 Palma de Mallorca, Spain; (V.L.); (P.F.-G.)
| | - Paula Fernandez-Garcia
- Laminar Pharmaceuticals, Ctra. de Valldemossa Km. 7, 4 Parc BIT Ed. Naorte Bolque A-1°-3, 07121 Palma de Mallorca, Spain; (V.L.); (P.F.-G.)
| | - Ulf D. Kahlert
- Molecular and Experimental Surgery, Clinic for General, Visceral, Vascular, and Transplant Surgery, Medical Faculty, University Hospital Magdeburg, 39120 Magdeburg, Germany;
| | - Dinorah Barasch
- Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 9112102, Israel; (G.K.); (D.B.); (A.S.)
- Mass Spectrometry Unit, Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Ann Saada
- Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 9112102, Israel; (G.K.); (D.B.); (A.S.)
- Department of Genetics, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem 9112102, Israel
| | - Zsolt Török
- Lipodom Ltd., Dorottya Utca 35-37, 6726 Szeged, Hungary; (M.P.); (Z.T.); (G.B.)
- Biological Research Centre, Institute of Biochemistry, 6726 Szeged, Hungary
| | - Gábor Balogh
- Lipodom Ltd., Dorottya Utca 35-37, 6726 Szeged, Hungary; (M.P.); (Z.T.); (G.B.)
- Biological Research Centre, Institute of Biochemistry, 6726 Szeged, Hungary
| | - Pablo V. Escriba
- Laminar Pharmaceuticals, Ctra. de Valldemossa Km. 7, 4 Parc BIT Ed. Naorte Bolque A-1°-3, 07121 Palma de Mallorca, Spain; (V.L.); (P.F.-G.)
- Department of Biology, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
- Correspondence: (P.V.E.); (S.P.); (O.K.)
| | - Stefano Piotto
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy;
- Bionam Center for Biomaterials, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
- Correspondence: (P.V.E.); (S.P.); (O.K.)
| | - Or Kakhlon
- Department of Neurology, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem 9112102, Israel;
- Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 9112102, Israel; (G.K.); (D.B.); (A.S.)
- Correspondence: (P.V.E.); (S.P.); (O.K.)
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Sessa L, Nardiello AM, Santoro J, Concilio S, Piotto S. Hydroxylated Fatty Acids: The Role of the Sphingomyelin Synthase and the Origin of Selectivity. MEMBRANES 2021; 11:membranes11100787. [PMID: 34677553 PMCID: PMC8539438 DOI: 10.3390/membranes11100787] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/07/2021] [Accepted: 10/13/2021] [Indexed: 12/16/2022]
Abstract
Sphingolipids are a class of lipids acting as key modulators of many physiological and pathophysiological processes. Hydroxylation patterns have a major influence on the biophysical properties of sphingolipids. In this work, we have studied the mechanism of action of hydroxylated lipids in sphingomyelin synthase (SMS). The structures of the two human isoforms, SMS1 and SMS2, have been generated through neural network supported homology. Furthermore, we have elucidated the reaction mechanism that allows SMS to recover the choline head from a phosphocholine (PC) and transfer it to ceramide, and we have clarified the role of the hydroxyl group in the interaction with the enzyme. Finally, the effect of partial inhibition of SMS on the levels of PC and sphingomyelin was calculated for different rate constants solving ordinary differential equation systems.
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8
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Ou P, Stanek A, Huan Z, Roman CAJ, Huan C. SMS2 deficiency impairs PKCδ-regulated B cell tolerance in the germinal center. Cell Rep 2021; 36:109624. [PMID: 34469734 DOI: 10.1016/j.celrep.2021.109624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 06/14/2021] [Accepted: 08/05/2021] [Indexed: 11/29/2022] Open
Abstract
B cell tolerance prevents autoimmunity by deleting or deactivating autoreactive B cells that otherwise may cause autoantibody-driven disorders, including systemic lupus erythematosus (lupus). Lupus is characterized by immunoglobulin Gs carrying a double-stranded (ds)-DNA autospecificity derived mainly from somatic hypermutation in the germinal center (GC), pointing to a checkpoint breach of GC B cell tolerance that leads to lupus. However, tolerance mechanisms in the GC remain poorly understood. Here, we show that upregulated sphingomyelin synthase 2 (SMS2) in anti-dsDNA GC B cells induces apoptosis by directly activating protein kinase C δ (PKCδ)'s pro-apoptotic activity. This tolerance mechanism prevents lupus autoimmunity in C57/BL6 mice and can be stimulated pharmacologically to inhibit lupus pathogenesis in lupus-prone NZBWF1 mice. Patients with lupus consistently have substantially reduced SMS2 expression in B cells and to an even greater extent in autoimmune-prone, age-associated B cells, suggesting that patients with lupus have insufficient SMS2-regulated B cell tolerance.
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Affiliation(s)
- Peiqi Ou
- Program in Molecular and Cellular Biology, The School of Graduate Studies, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Albert Stanek
- Department of Surgery, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Zack Huan
- Department of Cell Biology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Christopher A J Roman
- Department of Cell Biology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA.
| | - Chongmin Huan
- Department of Surgery, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA; Department of Cell Biology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY 11203, USA.
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Concilio S, Di Martino M, Nardiello AM, Panunzi B, Sessa L, Miele Y, Rossi F, Piotto S. A Flavone-Based Solvatochromic Probe with A Low Expected Perturbation Impact on the Membrane Physical State. Molecules 2020; 25:E3458. [PMID: 32751363 PMCID: PMC7436088 DOI: 10.3390/molecules25153458] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 11/26/2022] Open
Abstract
The study of the cell membrane is an ambitious and arduous objective since its physical state is regulated by a series of processes that guarantee its regular functionality. Among the different methods of analysis, fluorescence spectroscopy is a technique of election, non-invasive, and easy to use. Besides, molecular dynamics analysis (MD) on model membranes provides useful information on the possibility of using a new probe, following its positioning in the membrane, and evaluating the possible perturbation of the double layer. In this work, we report the rational design and the synthesis of a new fluorescent solvatochromic probe and its characterization in model membranes. The probe consists of a fluorescent aromatic nucleus of a 3-hydroxyflavone moiety, provided with a saturated chain of 18 carbon atoms and a zwitterionic head so to facilitate the anchoring to the polar heads of the lipid bilayer and avoid the complete internalization. It was possible to study the behavior of the probe in GUV model membranes by MD analysis and fluorescence microscopy, demonstrating that the new probe can efficiently be incorporated in the lipid bilayer, and give a color response, thanks to is solvatochromic properties. Moreover, MD simulation of the probe in the membrane supports the hypothesis of a reduced perturbation of the membrane physical state.
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Affiliation(s)
- Simona Concilio
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
| | - Miriam Di Martino
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (M.D.M.); (A.M.N.); (L.S.)
| | - Anna Maria Nardiello
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (M.D.M.); (A.M.N.); (L.S.)
| | - Barbara Panunzi
- Department of Agriculture, University of Napoli Federico II, 80055 Portici, Italy;
| | - Lucia Sessa
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (M.D.M.); (A.M.N.); (L.S.)
| | - Ylenia Miele
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, 84084 Fisciano, Italy;
| | - Federico Rossi
- Department of Earth, Environmental and Physical Sciences “DEEP Sciences”, University of Siena, 53100 Siena, Italy;
| | - Stefano Piotto
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (M.D.M.); (A.M.N.); (L.S.)
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10
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Saika A, Nagatake T, Kishino S, Park S, Honda T, Matsumoto N, Shimojou M, Morimoto S, Tiwari P, Node E, Hirata S, Hosomi K, Kabashima K, Ogawa J, Kunisawa J. 17( S),18( R)-epoxyeicosatetraenoic acid generated by cytochrome P450 BM-3 from Bacillus megaterium inhibits the development of contact hypersensitivity via G-protein-coupled receptor 40-mediated neutrophil suppression. FASEB Bioadv 2020; 2:59-71. [PMID: 32123857 PMCID: PMC6996328 DOI: 10.1096/fba.2019-00061] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 07/24/2019] [Accepted: 12/10/2019] [Indexed: 12/11/2022] Open
Abstract
Dietary intake of ω3 polyunsaturated fatty acids such as eicosapentaenoic acid and docosahexaenoic acid is beneficial for health control. We recently identified 17,18-epoxyeicosatetraenoic acid (17,18-EpETE) as a lipid metabolite endogenously generated from eicosapentaenoic acid that exhibits potent anti-allergic and anti-inflammatory properties. However, chemically synthesized 17,18-EpETE is enantiomeric due to its epoxy group-17(S),18(R)-EpETE and 17(R),18(S)-EpETE. In this study, we demonstrated stereoselective differences of 17(S),18(R)-EpETE and 17(R),18(S)-EpETE in amelioration of skin contact hypersensitivity and found that anti-inflammatory activity was detected in 17(S),18(R)-EpETE, but not in 17(R),18(S)-EpETE. In addition, we found that cytochrome P450 BM-3 derived from Bacillus megaterium stereoselectively converts EPA into 17(S),18(R)-EpETE, which effectively inhibited the development of skin contact hypersensitivity by inhibiting neutrophil migration in a G protein-coupled receptor 40-dependent manner. These results suggest the new availability of a bacterial enzyme to produce a beneficial lipid mediator, 17(S),18(R)-EpETE, in a stereoselective manner. Our findings highlight that bacterial enzymatic conversion of fatty acid is a promising strategy for mass production of bioactive lipid metabolites.
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Affiliation(s)
- Azusa Saika
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
- Graduate School of Pharmaceutical SciencesOsaka UniversityOsakaJapan
| | - Takahiro Nagatake
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
| | - Shigenobu Kishino
- Division of Applied Life SciencesGraduate School of AgricultureKyoto UniversityKyotoJapan
| | - Si‐Bum Park
- Division of Applied Life SciencesGraduate School of AgricultureKyoto UniversityKyotoJapan
| | - Tetsuya Honda
- Department of DermatologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Naomi Matsumoto
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
| | - Michiko Shimojou
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
| | - Sakiko Morimoto
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
| | - Prabha Tiwari
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
| | - Eri Node
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
| | - So‐ichiro Hirata
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
- Graduate School of MedicineKobe UniversityHyogoJapan
| | - Koji Hosomi
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
| | - Kenji Kabashima
- Department of DermatologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Jun Ogawa
- Division of Applied Life SciencesGraduate School of AgricultureKyoto UniversityKyotoJapan
| | - Jun Kunisawa
- Laboratory of Vaccine MaterialsCenter for Vaccine and Adjuvant ResearchLaboratory of Gut Environmental SystemNational Institutes of Biomedical InnovationHealth and Nutrition (NIBIOHN)OsakaJapan
- Graduate School of Pharmaceutical SciencesOsaka UniversityOsakaJapan
- Graduate School of MedicineKobe UniversityHyogoJapan
- International Research and Development Center for Mucosal VaccinesThe Institute of Medical ScienceThe University of TokyoTokyoJapan
- Graduate School of MedicineGraduate School of DentistryOsaka UniversityOsakaJapan
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11
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The influence of 2-hydroxyoleic acid – an anticancer drug – on model membranes of different fluidity modulated by the cholesterol content. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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12
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Minerval (2-hydroxyoleic acid) causes cancer cell selective toxicity by uncoupling oxidative phosphorylation and compromising bioenergetic compensation capacity. Biosci Rep 2019; 39:BSR20181661. [PMID: 30602451 PMCID: PMC6340956 DOI: 10.1042/bsr20181661] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 11/27/2018] [Accepted: 12/07/2018] [Indexed: 12/12/2022] Open
Abstract
This work tests bioenergetic and cell-biological implications of the synthetic fatty acid Minerval (2-hydroxyoleic acid), previously demonstrated to act by activation of sphingomyelin synthase in the plasma membrane (PM) and lowering of phosphatidylethanolamine (PE) and phosphatidylcholine (PC) and their carcinogenic signaling. We show here that Minerval also acts, selectively in cancer cell lines, as an ATP depleting uncoupler of mitochondrial oxidative phosphorylation (OxPhos). As a function of its exposure time, Minerval compromised the capacity of glioblastoma U87-MG cells to compensate for aberrant respiration by up-modulation of glycolysis. This effect was not exposure time-dependent in the lung carcinoma A549 cell line, which was more sensitive to Minerval. Compared with OxPhos inhibitors FCCP (uncoupler), rotenone (electron transfer inhibitor), and oligomycin (F1F0-ATPase inhibitor), Minerval action was similar only to that of FCCP. This similarity was manifested by mitochondrial membrane potential (MMP) depolarization, facilitation of oxygen consumption rate (OCR), restriction of mitochondrial and cellular reactive oxygen species (ROS) generation and mitochondrial fragmentation. Additionally, compared with other OxPhos inhibitors, Minerval uniquely induced ER stress in cancer cell lines. These new modes of action for Minerval, capitalizing on the high fatty acid requirements of cancer cells, can potentially enhance its cancer-selective toxicity and improve its therapeutic capacity.
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13
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The anti-tumor drug 2-hydroxyoleic acid (Minerval) stimulates signaling and retrograde transport. Oncotarget 2018; 7:86871-86888. [PMID: 27894086 PMCID: PMC5349960 DOI: 10.18632/oncotarget.13508] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 10/17/2016] [Indexed: 11/25/2022] Open
Abstract
2-hydroxyoleic acid (OHOA, Minerval®) is an example of a substance used for membrane lipid therapy, where the cellular membranes rather than specific proteins constitute the therapeutical target. OHOA is thought to mediate its anti-tumor effect by affecting the biophysical properties of membranes, which leads to altered recruitment and activation of amphitropic proteins, altered cellular signaling, and eventual cell death. Little is known about the initial signaling events upon treatment with OHOA, and whether the altered membrane properties would have any impact on the dynamic intracellular transport system. In the present study we demonstrate that treatment with OHOA led to a rapid release of intracellular calcium and activation of multiple signaling pathways in HeLa cells, including the PI3K-AKT1-MTOR pathway and several MAP kinases, in a process independent of the EGFR. By lipidomics we confirmed that OHOA was incorporated into several lipid classes. Concomitantly, OHOA potently increased retrograde transport of the plant toxin ricin from endosomes to the Golgi and further to the endoplasmic reticulum. The OHOA-stimulated ricin transport seemed to require several amphitropic proteins, including Src, phospholipase C, protein kinase C, and also Ca2+/calmodulin. Interestingly, OHOA induced a slight increase in endosomal localization of the retromer component VPS35. Thus, our data show that addition of a lipid known to alter membrane properties not only affects signaling, but also intracellular transport.
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14
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Jang EJ, Choi WR, Kim SY, Hong SS, Rhee I, Lee SJ, Choi SW, Choi HG, Lim SJ. 2-Hydroxyoleic acid-inserted liposomes as a multifunctional carrier of anticancer drugs. Drug Deliv 2017; 24:1587-1597. [PMID: 29029595 PMCID: PMC8241020 DOI: 10.1080/10717544.2017.1388452] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 10/02/2017] [Accepted: 10/02/2017] [Indexed: 01/22/2023] Open
Abstract
Studies have shown that insertion of oleic acid into lipid bilayers can modulate the membrane properties of liposomes so as to improve their function as drug carriers. Considering that 2-hydroxyoleic acid (2OHOA), a potential antitumor agent currently undergoing clinical trials, is a derivative of oleic acid, we explored the possibility of developing 2OHOA-inserted liposomes as a multifunctional carrier of antitumor drugs in the present study. The insertion of 2OHOA into lipid bilayers was confirmed by surface charge determination and differential scanning calorimetry. 2OHOA insertion greatly decreased the order of dimyristoylphosphatidylcholine packing, produced a nanosized (<100 nm) dispersion, and improved the colloidal stability of liposomes during storage. Moreover, 2OHOA-inserted liposome forms exhibited greater growth inhibitory activity against cancer cells compared with free 2OHOA, and the growth-inhibitory activity of liposomal 2OHOA was selective for tumor cells. 2OHOA insertion greatly increased the liposome-incorporated concentration of hydrophobic model drugs, including mitoxantrone, paclitaxel, and all-trans retinoic acid (ATRA). The in vitro anticancer activity of ATRA-incorporated/2OHOA-inserted liposomes was significantly higher than that of ATRA-incorporated conventional liposomes. In a B16-F10 melanoma syngeneic mouse model, the tumor growth rate was significantly delayed in mice treated with ATRA-incorporated/2OHOA-inserted liposomes compared with that in the control group. Immunohistochemical analyses revealed that the enhanced antitumor activity of ATRA-incorporated/2OHOA-inserted liposomes was due, at least in part, to increased induction of apoptosis. Collectively, our findings indicate that 2OHOA-inserted liposomes exhibit multiple advantages as antitumor drug carriers, including the ability to simultaneously deliver two anticancer drugs - 2OHOA and incorporated drug - to the tumor tissue.
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Affiliation(s)
- Eun-Ji Jang
- Department of Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Woo Rim Choi
- Department of Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Soo-Yeon Kim
- Immunotherapeutics Branch, Research Institute, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Soon-Seok Hong
- Department of Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Inmoo Rhee
- Department of Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Sang-Jin Lee
- Immunotherapeutics Branch, Research Institute, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Sung Weon Choi
- Oral Oncology Clinic, Research Institute & Hospital, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Republic of Korea
| | - Soo-Jeong Lim
- Department of Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
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15
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Barrella MC, Di Capua A, Adami R, Reverchon E, Mella M, Izzo L. Impact of intermolecular drug-copolymer interactions on size and drug release kinetics from pH-responsive polymersomes. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1377836] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Maria Chiara Barrella
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Fisciano, Italy
| | - Alessia Di Capua
- Dipartimento di Ingegneria Industriale, Università degli Studi di Salerno, Fisciano, Italy
| | - Renata Adami
- Dipartimento di Ingegneria Industriale, Università degli Studi di Salerno, Fisciano, Italy
| | - Ernesto Reverchon
- Dipartimento di Ingegneria Industriale, Università degli Studi di Salerno, Fisciano, Italy
| | - Massimo Mella
- Dipartimento di Scienza ed Alta Tecnologia, Università degli Studi dell’Insubria, Como, Italy
| | - Lorella Izzo
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Fisciano, Italy
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16
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Mohaibes RJ, Fiol-deRoque MA, Torres M, Ordinas M, López DJ, Castro JA, Escribá PV, Busquets X. The hydroxylated form of docosahexaenoic acid (DHA-H) modifies the brain lipid composition in a model of Alzheimer's disease, improving behavioral motor function and survival. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1596-1603. [DOI: 10.1016/j.bbamem.2017.02.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/22/2017] [Accepted: 02/25/2017] [Indexed: 01/14/2023]
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17
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Escribá PV. Membrane-lipid therapy: A historical perspective of membrane-targeted therapies - From lipid bilayer structure to the pathophysiological regulation of cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1493-1506. [PMID: 28577973 DOI: 10.1016/j.bbamem.2017.05.017] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Our current understanding of membrane lipid composition, structure and functions has led to the investigation of their role in cell signaling, both in healthy and pathological cells. As a consequence, therapies based on the regulation of membrane lipid composition and structure have been recently developed. This novel field, known as Membrane Lipid Therapy, is growing and evolving rapidly, providing treatments that are now in use or that are being studied for their application to oncological disorders, Alzheimer's disease, spinal cord injury, stroke, diabetes, obesity, and neuropathic pain. This field has arisen from relevant discoveries on the behavior of membranes in recent decades, and it paves the way to adopt new approaches in modern pharmacology and nutrition. This innovative area will promote further investigation into membranes and the development of new therapies with molecules that target the cell membrane. Due to the prominent roles of membranes in the cells' physiology and the paucity of therapeutic approaches based on the regulation of the lipids they contain, it is expected that membrane lipid therapy will provide new treatments for numerous pathologies. The first on-purpose rationally designed molecule in this field, minerval, is currently being tested in clinical trials and it is expected to enter the market around 2020. However, it seems feasible that during the next few decades other membrane regulators will also be marketed for the treatment of human pathologies. This article is part of a Special Issue entitled: Membrane Lipid Therapy: Drugs Targeting Biomembranes edited by Pablo V. Escribá.
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Affiliation(s)
- Pablo V Escribá
- Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain.
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18
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Escribá PV. WITHDRAWN: Membrane-lipid therapy: A historical perspective of membrane-targeted therapies-From lipid bilayer structure to the pathophysiological regulation of cells. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2017:S0005-2736(17)30139-6. [PMID: 28476630 DOI: 10.1016/j.bbamem.2017.04.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/23/2017] [Accepted: 04/25/2017] [Indexed: 11/19/2022]
Abstract
The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.bbamem.2017.05.017. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Pablo V Escribá
- Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain.
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19
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Piotto S, Sessa L, Iannelli P, Concilio S. Computational study on human sphingomyelin synthase 1 (hSMS1). BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1517-1525. [PMID: 28411172 DOI: 10.1016/j.bbamem.2017.04.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/23/2017] [Accepted: 04/09/2017] [Indexed: 01/28/2023]
Abstract
Human sphingomyelin synthase 1 (hSMS1) is the last enzyme for sphingomyelin (SM) biosynthesis. It has been discovered that in different human tumor tissues the SM levels are lower compared to normal tissues and the activation of hSMS1, to restore the normal levels of SM, inhibits cell cycle proliferation of cancer cells. Since the importance of SM and other lipid metabolism genes in the malignant transformation, we decided to explore the hSMS1 mechanism of action. Enzymes capable to regulate the formation of lipids are therefore of paramount importance. Here we present a computational study on sphingomyelin synthases hSMS1. The full structure of the enzyme was obtained by means of homology and ab initio techniques. Further molecular dynamics and docking studies permitted to identify putative binding sites and to identify the key residues for binding. This article is part of a Special Issue entitled: Membrane Lipid Therapy: Drugs Targeting Biomembranes edited by Pablo V. Escribá.
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Affiliation(s)
- Stefano Piotto
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Lucia Sessa
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Pio Iannelli
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Simona Concilio
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
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20
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Casas J, Ibarguren M, Álvarez R, Terés S, Lladó V, Piotto SP, Concilio S, Busquets X, López DJ, Escribá PV. G protein-membrane interactions II: Effect of G protein-linked lipids on membrane structure and G protein-membrane interactions. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1526-1535. [PMID: 28411171 DOI: 10.1016/j.bbamem.2017.04.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/21/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022]
Abstract
G proteins often bear myristoyl, palmitoyl and isoprenyl moieties, which favor their association with the membrane and their accumulation in G Protein Coupled Receptor-rich microdomains. These lipids influence the biophysical properties of membranes and thereby modulate G protein binding to bilayers. In this context, we showed here that geranylgeraniol, but neither myristate nor palmitate, increased the inverted hexagonal (HII) phase propensity of phosphatidylethanolamine-containing membranes. While myristate and palmitate preferentially associated with phosphatidylcholine membranes, geranylgeraniol favored nonlamellar-prone membranes. In addition, Gαi1 monomers had a higher affinity for lamellar phases, while Gβγ and Gαβγ showed a marked preference for nonlamellar prone membranes. Moreover, geranylgeraniol enhanced the binding of G protein dimers and trimers to phosphatidylethanolamine-containing membranes, yet it decreased that of monomers. By contrast, both myristate and palmitate increased the Gαi1 preference for lamellar membranes. Palmitoylation reinforced the binding of the monomer to PC membranes and myristoylation decreased its binding to PE-enriched bilayer. Finally, binding of dimers and trimers to lamellar-prone membranes was decreased by palmitate and myristate, but it was increased in nonlamellar-prone bilayers. These results demonstrate that co/post-translational G protein lipid modifications regulate the membrane lipid structure and that they influence the physico-chemical properties of membranes, which in part explains why G protein subunits sort to different plasma membrane domains. This article is part of a Special Issue entitled: Membrane Lipid Therapy: Drugs Targeting Biomembranes edited by Pablo V. Escribá.
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Affiliation(s)
- Jesús Casas
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
| | - Maitane Ibarguren
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain; Lipopharma Therapeutics, S.L., ParcBit, 07121 Palma de Mallorca, Spain
| | - Rafael Álvarez
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
| | - Silvia Terés
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain; Lipopharma Therapeutics, S.L., ParcBit, 07121 Palma de Mallorca, Spain
| | - Victoria Lladó
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
| | - Stefano P Piotto
- Department of Pharmacy, University of Salerno, Via Ponte don Melillo, 84084 Fisciano, SA, Italy
| | - Simona Concilio
- Department of Industrial Engineering, University of Salerno, Via Ponte don Melillo, 84084 Fisciano, SA, Italy
| | - Xavier Busquets
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
| | - David J López
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain; Lipopharma Therapeutics, S.L., ParcBit, 07121 Palma de Mallorca, Spain.
| | - Pablo V Escribá
- Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
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Cattaneo G, Giancarlo R, Piotto S, Ferraro Petrillo U, Roscigno G, Di Biasi L. MapReduce in Computational Biology - A Synopsis. ADVANCES IN ARTIFICIAL LIFE, EVOLUTIONARY COMPUTATION, AND SYSTEMS CHEMISTRY 2017. [DOI: 10.1007/978-3-319-57711-1_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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22
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Biophysics in cancer: The relevance of drug-membrane interaction studies. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2231-2244. [DOI: 10.1016/j.bbamem.2016.06.025] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 05/31/2016] [Accepted: 06/26/2016] [Indexed: 12/26/2022]
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23
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Sessa L, Di Biasi L, Concilio S, Cattaneo G, De Santis A, Iannelli P, Piotto S. A New Flexible Protocol for Docking Studies. COMMUNICATIONS IN COMPUTER AND INFORMATION SCIENCE 2016. [DOI: 10.1007/978-3-319-32695-5_11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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25
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Piotto S, Trapani A, Bianchino E, Ibarguren M, López DJ, Busquets X, Concilio S. The effect of hydroxylated fatty acid-containing phospholipids in the remodeling of lipid membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:1509-17. [PMID: 24463068 DOI: 10.1016/j.bbamem.2014.01.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 01/11/2014] [Accepted: 01/13/2014] [Indexed: 11/17/2022]
Abstract
The synthetic fatty acid 2-hydroxyoleic acid (2OHOA) is an antitumor drug that regulates membrane lipid composition and structure. An important effect of this drug is the restoration of sphingomyelin (SM) levels in cancer cell membranes, where the SM concentration is lower than in non-tumor cells. It is well known that free fatty acid concentration in cell membranes is lower than 5%, and that fatty acid excess is rapidly incorporated into phospholipids. In a recent work, we have considered the effect of free 2OHOA in model membranes in liquid ordered (Lo) and liquid disordered (Ld) phases, by using all-atom molecular dynamics. This study concerns membranes that are modified upon incorporation of 2OHOA into different phospholipids. 2OHOA-containing phospholipids have a permanent effect on lipid membranes, making a Ld membrane surface more compact and less hydrated, whereas the opposite effect is observed in Lo domains. Moreover, the hydroxyl group of fatty acid chains increases the propensity of Ld model membranes to form hexagonal or other non-lamellar structures. This article is part of a Special Issue entitled: Membrane Structure and Function: Relevance in the Cell's Physiology, Pathology and Therapy.
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Affiliation(s)
- Stefano Piotto
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy.
| | - Alfonso Trapani
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy
| | - Erminia Bianchino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy; BIOGEM s.c.a.r.l. - Research Institute Gaetano Salvatore, Via camporeale - area P.I.P., 83031 Ariano Irpino, AV, Italy
| | - Maitane Ibarguren
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands - Lipopharma Therapeutics, S.L., Palma, Spain
| | - David J López
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands - Lipopharma Therapeutics, S.L., Palma, Spain
| | - Xavier Busquets
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands - Lipopharma Therapeutics, S.L., Palma, Spain
| | - Simona Concilio
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, Fisciano 84084, SA, Italy
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