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Shaik GM, Draberova L, Cernohouzova S, Tumova M, Bugajev V, Draber P. Pentacyclic triterpenoid ursolic acid interferes with mast cell activation via a lipid-centric mechanism affecting FcεRI signalosome functions. J Biol Chem 2022; 298:102497. [PMID: 36115460 PMCID: PMC9587013 DOI: 10.1016/j.jbc.2022.102497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/20/2022] Open
Abstract
Pentacyclic triterpenoids, including ursolic acid (UA), are bioactive compounds with multiple biological activities involving anti-inflammatory effects. However, the mode of their action on mast cells, key players in the early stages of allergic inflammation, and underlying molecular mechanisms remain enigmatic. To better understand the effect of UA on mast cell signaling, here we examined the consequences of short-term treatment of mouse bone marrow-derived mast cells with UA. Using IgE-sensitized and antigen- or thapsigargin-activated cells, we found that 15 min exposure to UA inhibited high affinity IgE receptor (FcεRI)–mediated degranulation, calcium response, and extracellular calcium uptake. We also found that UA inhibited migration of mouse bone marrow-derived mast cells toward antigen but not toward prostaglandin E2 and stem cell factor. Compared to control antigen-activated cells, UA enhanced the production of tumor necrosis factor-α at the mRNA and protein levels. However, secretion of this cytokine was inhibited. Further analysis showed that UA enhanced tyrosine phosphorylation of the SYK kinase and several other proteins involved in the early stages of FcεRI signaling, even in the absence of antigen activation, but inhibited or reduced their further phosphorylation at later stages. In addition, we show that UA induced changes in the properties of detergent-resistant plasma membrane microdomains and reduced antibody-mediated clustering of the FcεRI and glycosylphosphatidylinositol-anchored protein Thy-1. Finally, UA inhibited mobility of the FcεRI and cholesterol. These combined data suggest that UA exerts its effects, at least in part, via lipid-centric plasma membrane perturbations, hence affecting the functions of the FcεRI signalosome.
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Affiliation(s)
- Gouse M Shaik
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic; Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Lubica Draberova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Sara Cernohouzova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Magda Tumova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Viktor Bugajev
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Petr Draber
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic.
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Metz VG, Segat HJ, Dias VT, Barcelos RCS, Maurer LH, Stiebe J, Emanuelli T, Burger ME, Pase CS. Omega-3 decreases D1 and D2 receptors expression in the prefrontal cortex and prevents amphetamine-induced conditioned place preference in rats. J Nutr Biochem 2019; 67:182-189. [PMID: 30951972 DOI: 10.1016/j.jnutbio.2019.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 02/13/2019] [Accepted: 02/28/2019] [Indexed: 01/09/2023]
Abstract
Amphetamine (AMPH) abuse is a serious public health problem due to the high addictive potential of this drug, whose use is related to severe brain neurotoxicity and memory impairments. So far, therapies for psychostimulant addiction have had limited efficacy. Omega-3 polyunsaturated fatty acids (n-3 PUFA) have shown beneficial influences on the prevention and treatment of several diseases that affect the central nervous system. Here, we assessed the influence of fish oil (FO), which is rich in n-3 PUFA, on withdrawal and relapse symptoms following re-exposure to AMPH. Male Wistar rats received d,l-AMPH or vehicle in the conditioned place preference (CPP) paradigm for 14 days. Then, half of each experimental group was treated with FO (3 g/kg, p.o.) for 14 days. Subsequently, animals were re-exposed to AMPH-CPP for three additional days, in order to assess relapse behavior. Our findings have evidenced that FO prevented relapse induced by AMPH reconditioning. While FO prevented AMPH-induced oxidative damages in the prefrontal cortex, molecular assays allowed us to observe that it was also able to modulate dopaminergic cascade markers (DAT, TH, VMAT-2, D1R and D2R) in the same brain area, thus preventing AMPH-induced molecular changes. To the most of our knowledge, this is the first study to show a natural alternative tool which is able to prevent psychostimulant relapse following drug withdrawal. This non-invasive and healthy nutraceutical may be considered as an adjuvant treatment in detoxification clinics.
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Affiliation(s)
- Vinícia Garzella Metz
- Programa de Pós-Graduação em Farmacologia-Universidade Federal de Santa Maria, RS, Brazil
| | - Hecson Jesser Segat
- Programa de Pós-Graduação em Bioquímica Toxicológica - Universidade Federal de Santa Maria, RS, Brazil
| | - Verônica Tironi Dias
- Programa de Pós-Graduação em Farmacologia-Universidade Federal de Santa Maria, RS, Brazil
| | | | - Luana Haselein Maurer
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos-Universidade Federal de Santa Maria, RS, Brazil
| | - Jéssica Stiebe
- Departamento de Tecnologia e Ciências dos Alimentos - Universidade Federal de Santa Maria, RS, Brazil
| | - Tatiana Emanuelli
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos-Universidade Federal de Santa Maria, RS, Brazil
| | | | - Camila Simonetti Pase
- Programa de Pós-Graduação em Farmacologia-Universidade Federal de Santa Maria, RS, Brazil; Universidade Federal do Pampa, Campus Uruguaiana, RS, Brazil.
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Barandov A, Bartelle BB, Williamson CG, Loucks ES, Lippard SJ, Jasanoff A. Sensing intracellular calcium ions using a manganese-based MRI contrast agent. Nat Commun 2019; 10:897. [PMID: 30796208 PMCID: PMC6385297 DOI: 10.1038/s41467-019-08558-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 01/15/2019] [Indexed: 12/19/2022] Open
Abstract
Calcium ions are essential to signal transduction in virtually all cells, where they coordinate processes ranging from embryogenesis to neural function. Although optical probes for intracellular calcium imaging have been available for decades, the development of probes for noninvasive detection of intracellular calcium signaling in deep tissue and intact organisms remains a challenge. To address this problem, we synthesized a manganese-based paramagnetic contrast agent, ManICS1-AM, designed to permeate cells, undergo esterase cleavage, and allow intracellular calcium levels to be monitored by magnetic resonance imaging (MRI). Cells loaded with ManICS1-AM show changes in MRI contrast when stimulated with pharmacological agents or optogenetic tools; responses directly parallel the signals obtained using fluorescent calcium indicators. Introduction of ManICS1-AM into rodent brains furthermore permits MRI-based measurement of neural activation in optically inaccessible brain regions. These results thus validate ManICS1-AM as a calcium sensor compatible with the extensive penetration depth and field of view afforded by MRI.
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Affiliation(s)
- Ali Barandov
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA
| | - Benjamin B Bartelle
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA
| | - Catherine G Williamson
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA
| | - Emily S Loucks
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA
| | - Stephen J Lippard
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA
| | - Alan Jasanoff
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA. .,Department of Brain & Cognitive Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA. .,Department of Nuclear Science & Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm. 16-561, Cambridge, MA, 02139, USA.
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Hakimian J, Minasyan A, Zhe-Ying L, Loureiro M, Beltrand A, Johnston C, Vorperian A, Romaneschi N, Atallah W, Gomez-Pinilla F, Walwyn W. Specific behavioral and cellular adaptations induced by chronic morphine are reduced by dietary omega-3 polyunsaturated fatty acids. PLoS One 2017; 12:e0175090. [PMID: 28380057 PMCID: PMC5381919 DOI: 10.1371/journal.pone.0175090] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/20/2017] [Indexed: 12/12/2022] Open
Abstract
Opiates, one of the oldest known drugs, are the benchmark for treating pain. Regular opioid exposure also induces euphoria making these compounds addictive and often misused, as shown by the current epidemic of opioid abuse and overdose mortalities. In addition to the effect of opioids on their cognate receptors and signaling cascades, these compounds also induce multiple adaptations at cellular and behavioral levels. As omega-3 polyunsaturated fatty acids (n-3 PUFAs) play a ubiquitous role in behavioral and cellular processes, we proposed that supplemental n-3 PUFAs, enriched in docosahexanoic acid (DHA), could offset these adaptations following chronic opioid exposure. We used an 8 week regimen of n-3 PUFA supplementation followed by 8 days of morphine in the presence of this diet. We first assessed the effect of morphine in different behavioral measures and found that morphine increased anxiety and reduced wheel-running behavior. These effects were reduced by dietary n-3 PUFAs without affecting morphine-induced analgesia or hyperlocomotion, known effects of this opiate acting at mu opioid receptors. At the cellular level we found that morphine reduced striatal DHA content and that this was reversed by supplemental n-3 PUFAs. Chronic morphine also increased glutamatergic plasticity and the proportion of Grin2B-NMDARs in striatal projection neurons. This effect was similarly reversed by supplemental n-3 PUFAs. Gene analysis showed that supplemental PUFAs offset the effect of morphine on genes found in neurons of the dopamine receptor 2 (D2)-enriched indirect pathway but not of genes found in dopamine receptor 1(D1)-enriched direct-pathway neurons. Analysis of the D2 striatal connectome by a retrogradely transported pseudorabies virus showed that n-3 PUFA supplementation reversed the effect of chronic morphine on the innervation of D2 neurons by the dorsomedial prefontal and piriform cortices. Together these changes outline specific behavioral and cellular effects of morphine that can be reduced or reversed by dietary n-3 PUFAs.
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Affiliation(s)
- Joshua Hakimian
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Ani Minasyan
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Lily Zhe-Ying
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
- UCLA Integrative Biology and Physiology, University of California Los Angeles, Los Angeles, California
| | - Mariana Loureiro
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Austin Beltrand
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Camille Johnston
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Alexander Vorperian
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Nicole Romaneschi
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Waleed Atallah
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
| | - Fernando Gomez-Pinilla
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
- UCLA Integrative Biology and Physiology, University of California Los Angeles, Los Angeles, California
| | - Wendy Walwyn
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
- * E-mail:
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Antollini SS, Barrantes FJ. Fatty Acid Regulation of Voltage- and Ligand-Gated Ion Channel Function. Front Physiol 2016; 7:573. [PMID: 27965583 PMCID: PMC5124694 DOI: 10.3389/fphys.2016.00573] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/09/2016] [Indexed: 12/25/2022] Open
Abstract
Free fatty acids (FFA) are essential components of the cell, where they play a key role in lipid and carbohydrate metabolism, and most particularly in cell membranes, where they are central actors in shaping the physicochemical properties of the lipid bilayer and the cellular adaptation to the environment. FFA are continuously being produced and degraded, and a feedback regulatory function has been attributed to their turnover. The massive increase observed under some pathological conditions, especially in brain, has been interpreted as a protective mechanism possibly operative on ion channels, which in some cases is of stimulatory nature and in other cases inhibitory. Here we discuss the correlation between the structure of FFA and their ability to modulate protein function, evaluating the influence of saturation/unsaturation, number of double bonds, and cis vs. trans isomerism. We further focus on the mechanisms of FFA modulation operating on voltage-gated and ligand-gated ion channel function, contrasting the still conflicting evidence on direct vs. indirect mechanisms of action.
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Affiliation(s)
- Silvia S Antollini
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (CONICET-UNS)Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del SurBahía Blanca, Argentina
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Zhang C, Zheng Y, Chen L, Chen M, Liang S, Lin M, Luo D. Regulation of basal lateral membrane mobility and permeability to divalent cations by membrane associated-protein kinase C. PLoS One 2013; 8:e80291. [PMID: 24260363 PMCID: PMC3832666 DOI: 10.1371/journal.pone.0080291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 10/01/2013] [Indexed: 11/19/2022] Open
Abstract
Biological membrane stabilization is essential for maintenance of cellular homeostasis, functionality and appropriate response to various stimuli. Previous studies have showed that accumulation of PKCs in the cell membrane significantly downregulates the membrane fluidity and Ca2+ influxes through the membranes in activated cells. In addition, membrane-inserted form of PKCs has been found in a variety of resting mammalian cells and tissues. This study is aimed to investigate possible role of the endogenous membrane-associated PKCs in the modulation of basal membrane fluidity. Here, we showed that interfering PKC expression by chronic activation of PKC with phorbol myristate acetate (PMA) or shRNA targeting at PKCα lowered the levels of PKCα in cytosol, peripheral membrane and integral membrane pools, while short-term activation of PKC with PMA induced accumulation of PKCα in the membrane pool accompanied by a dramatic decrease in the cytosol fraction. The lateral membrane mobility increased or decreased in accordance with the abundance alterations in the membrane-associated PKCα by these treatments. In addition, membrane permeability to divalent cations including Ca2+, Mn2+ and Ba2+ were also potentiated or abrogated along with the changes in PKC expression on the plasma membrane. Membrane stabilizer ursodeoxycholate abolished both of the enhanced lateral membrane mobility and permeability to divalent cations due to PKCα deficiency, whereas Gö6983, a PKC antagonist, or Gd3+ and 2-aminoethyoxydipheyl borne, two Ca2+ channels blockers, showed no effect, suggesting that this PKC-related regulation is independent of PKC activation or a modulation of specific divalent cation channel. Thus, these data demonstrate that the native membrane-associated PKCα is involved in the maintenance of basal membrane stabilization in resting cells.
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Affiliation(s)
- Chao Zhang
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Yuanyuan Zheng
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Lihong Chen
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Min Chen
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Shenxuan Liang
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Mosi Lin
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Dali Luo
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
- * E-mail:
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