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Taoro-González L, Pereda D, Valdés-Baizabal C, González-Gómez M, Pérez JA, Mesa-Herrera F, Canerina-Amaro A, Pérez-González H, Rodríguez C, Díaz M, Marin R. Effects of Dietary n-3 LCPUFA Supplementation on the Hippocampus of Aging Female Mice: Impact on Memory, Lipid Raft-Associated Glutamatergic Receptors and Neuroinflammation. Int J Mol Sci 2022; 23:7430. [PMID: 35806435 PMCID: PMC9267073 DOI: 10.3390/ijms23137430] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 06/29/2022] [Accepted: 07/02/2022] [Indexed: 11/17/2022] Open
Abstract
Long-chain polyunsaturated fatty acids (LCPUFA), essential molecules whose precursors must be dietary supplied, are highly represented in the brain contributing to numerous neuronal processes. Recent findings have demonstrated that LCPUFA are represented in lipid raft microstructures, where they favor molecular interactions of signaling complexes underlying neuronal functionality. During aging, the brain lipid composition changes affecting the lipid rafts' integrity and protein signaling, which may induce memory detriment. We investigated the effect of a n-3 LCPUFA-enriched diet on the cognitive function of 6- and 15-months-old female mice. Likewise, we explored the impact of dietary n-3 LCPUFAs on hippocampal lipid rafts, and their potential correlation with aging-induced neuroinflammation. Our results demonstrate that n-3 LCPUFA supplementation improves spatial and recognition memory and restores the expression of glutamate and estrogen receptors in the hippocampal lipid rafts of aged mice to similar profiles than young ones. Additionally, the n-3 LCPUFA-enriched diet stabilized the lipid composition of the old mice's hippocampal lipid rafts to the levels of young ones and reduced the aged-induced neuroinflammatory markers. Hence, we propose that n-3 LCPUFA supplementation leads to beneficial cognitive performance by "rejuvenating" the lipid raft microenvironment that stabilizes the integrity and interactions of memory protein players embedded in these microdomains.
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Affiliation(s)
- Lucas Taoro-González
- Research Unit, Hospital Universitario de Canarias, 38320 Santa Cruz de Tenerife, Spain;
- Instituto de Tecnologías Biomédicas de Canarias (ITB), University of La Laguna, 38200 Santa Cruz de Tenerife, Spain; (M.G.-G.); (C.R.)
| | - Daniel Pereda
- Laboratory of Cellular Neurobiology, Department of Basic Medical Sciences, Section of Medicine, Faculty of Health Sciences, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain; (D.P.); (C.V.-B.); (A.C.-A.)
- Associate Research Unit ULL-CSIC, Membrane Physiology and Biophysics in Neurodegenerative and Cancer Diseases, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain
| | - Catalina Valdés-Baizabal
- Laboratory of Cellular Neurobiology, Department of Basic Medical Sciences, Section of Medicine, Faculty of Health Sciences, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain; (D.P.); (C.V.-B.); (A.C.-A.)
- Associate Research Unit ULL-CSIC, Membrane Physiology and Biophysics in Neurodegenerative and Cancer Diseases, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain
| | - Miriam González-Gómez
- Instituto de Tecnologías Biomédicas de Canarias (ITB), University of La Laguna, 38200 Santa Cruz de Tenerife, Spain; (M.G.-G.); (C.R.)
- Department of Basic Medical Sciences, Faculty of Health Sciences, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain;
- Instituto de Neurociencia Cognitiva (NeuroCog), University of La Laguna, 38205 San Cristóbal de La Laguna, Spain
| | - José A. Pérez
- Department of Animal Biology, Edaphology and Geology, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain;
| | - Fátima Mesa-Herrera
- Laboratory of Membrane Physiology and Biophysics, Department of Animal Biology, Edaphology and Geology, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain;
| | - Ana Canerina-Amaro
- Laboratory of Cellular Neurobiology, Department of Basic Medical Sciences, Section of Medicine, Faculty of Health Sciences, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain; (D.P.); (C.V.-B.); (A.C.-A.)
- Associate Research Unit ULL-CSIC, Membrane Physiology and Biophysics in Neurodegenerative and Cancer Diseases, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain
| | - Herminia Pérez-González
- Department of Basic Medical Sciences, Faculty of Health Sciences, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain;
| | - Covadonga Rodríguez
- Instituto de Tecnologías Biomédicas de Canarias (ITB), University of La Laguna, 38200 Santa Cruz de Tenerife, Spain; (M.G.-G.); (C.R.)
- Department of Animal Biology, Edaphology and Geology, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain;
| | - Mario Díaz
- Instituto de Neurociencia Cognitiva (NeuroCog), University of La Laguna, 38205 San Cristóbal de La Laguna, Spain
- Department of Physics, Faculty of Sciences, University of La Laguna, 38200 San Cristóbal de La Laguna, Spain
- IUETSP (Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias), University of La Laguna, 38200 San Cristóbal de La Laguna, Spain
| | - Raquel Marin
- Laboratory of Cellular Neurobiology, Department of Basic Medical Sciences, Section of Medicine, Faculty of Health Sciences, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain; (D.P.); (C.V.-B.); (A.C.-A.)
- Associate Research Unit ULL-CSIC, Membrane Physiology and Biophysics in Neurodegenerative and Cancer Diseases, University of La Laguna, 38200 Santa Cruz de Tenerife, Spain
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Study of influence of the glutamatergic concentration of [ 18F]FPEB binding to metabotropic glutamate receptor subtype 5 with N-acetylcysteine challenge in rats and SRM/PET study in human healthy volunteers. Transl Psychiatry 2021; 11:66. [PMID: 33473111 PMCID: PMC7817831 DOI: 10.1038/s41398-020-01152-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/01/2020] [Accepted: 12/04/2020] [Indexed: 11/08/2022] Open
Abstract
Altered glutamate signaling is thought to be involved in a myriad of psychiatric disorders. Positron emission tomography (PET) imaging with [18F]FPEB allows assessing dynamic changes in metabotropic glutamate receptor 5 (mGluR5) availability underlying neuropathological conditions. The influence of endogenous glutamatergic levels into receptor binding has not been well established yet. The purpose of this study was to explore the [18F]FPEB binding regarding to physiological fluctuations or acute changes of glutamate synaptic concentrations by a translational approach; a PET/MRS imaging study in 12 healthy human volunteers combined to a PET imaging after an N-acetylcysteine (NAc) pharmacological challenge in rodents. No significant differences were observed with small-animal PET in the test and retest conditions on the one hand and the NAc condition on the other hand for any regions. To test for an interaction of mGuR5 density and glutamatergic concentrations in healthy subjects, we correlated the [18F]FPEB BPND with Glu/Cr, Gln/Cr, Glx/Cr ratios in the anterior cingulate cortex VOI; respectively, no significance correlation has been revealed (Glu/Cr: r = 0.51, p = 0.09; Gln/Cr: r = -0.46, p = 0.13; Glx/Cr: r = -0.035, p = 0.92).These data suggest that the in vivo binding of [18F]FPEB to an allosteric site of the mGluR5 is not modulated by endogenous glutamate in vivo. Thus, [18F]FPEB appears unable to measure acute fluctuations in endogenous levels of glutamate.
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The role of maternal immune activation in altering the neurodevelopmental trajectories of offspring: A translational review of neuroimaging studies with implications for autism spectrum disorder and schizophrenia. Neurosci Biobehav Rev 2019; 104:141-157. [DOI: 10.1016/j.neubiorev.2019.06.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/24/2019] [Accepted: 06/13/2019] [Indexed: 02/01/2023]
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Poutiainen P, Jaronen M, Quintana FJ, Brownell AL. Precision Medicine in Multiple Sclerosis: Future of PET Imaging of Inflammation and Reactive Astrocytes. Front Mol Neurosci 2016; 9:85. [PMID: 27695400 PMCID: PMC5023680 DOI: 10.3389/fnmol.2016.00085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 08/30/2016] [Indexed: 12/29/2022] Open
Abstract
Non-invasive molecular imaging techniques can enhance diagnosis to achieve successful treatment, as well as reveal underlying pathogenic mechanisms in disorders such as multiple sclerosis (MS). The cooperation of advanced multimodal imaging techniques and increased knowledge of the MS disease mechanism allows both monitoring of neuronal network and therapeutic outcome as well as the tools to discover novel therapeutic targets. Diverse imaging modalities provide reliable diagnostic and prognostic platforms to better achieve precision medicine. Traditionally, magnetic resonance imaging (MRI) has been considered the golden standard in MS research and diagnosis. However, positron emission tomography (PET) imaging can provide functional information of molecular biology in detail even prior to anatomic changes, allowing close follow up of disease progression and treatment response. The recent findings support three major neuroinflammation components in MS: astrogliosis, cytokine elevation, and significant changes in specific proteins, which offer a great variety of specific targets for imaging purposes. Regardless of the fact that imaging of astrocyte function is still a young field and in need for development of suitable imaging ligands, recent studies have shown that inflammation and astrocyte activation are related to progression of MS. MS is a complex disease, which requires understanding of disease mechanisms for successful treatment. PET is a precise non-invasive imaging method for biochemical functions and has potential to enhance early and accurate diagnosis for precision therapy of MS. In this review we focus on modulation of different receptor systems and inflammatory aspect of MS, especially on activation of glial cells, and summarize the recent findings of PET imaging in MS and present the most potent targets for new biomarkers with the main focus on experimental MS research.
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Affiliation(s)
- Pekka Poutiainen
- Athinoula A Martinos Biomedical Imaging Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical SchoolCharlestown, MA, USA
| | - Merja Jaronen
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical SchoolBoston, MA, USA
| | - Francisco J. Quintana
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical SchoolBoston, MA, USA
| | - Anna-Liisa Brownell
- Athinoula A Martinos Biomedical Imaging Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical SchoolCharlestown, MA, USA
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DeLorenzo C, Sovago J, Gardus J, Xu J, Yang J, Behrje R, Kumar JSD, Devanand DP, Pelton GH, Mathis CA, Mason NS, Gomez-Mancilla B, Aizenstein H, Mann JJ, Parsey RV. Characterization of brain mGluR5 binding in a pilot study of late-life major depressive disorder using positron emission tomography and [¹¹C]ABP688. Transl Psychiatry 2015; 5:e693. [PMID: 26645628 PMCID: PMC5068588 DOI: 10.1038/tp.2015.189] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/05/2015] [Accepted: 10/26/2015] [Indexed: 01/06/2023] Open
Abstract
The metabotropic glutamate receptor subtype 5 (mGluR5) has been implicated in the pathophysiology of mood and anxiety disorders and is a potential treatment target in major depressive disorder (MDD). This study compared brain mGluR5 binding in elderly patients suffering from MDD with that in elderly healthy volunteers using positron emission tomography (PET) and [(11)C]ABP688. Twenty elderly (mean age: 63.0 ± 6.3) subjects with MDD and twenty-two healthy volunteers in the same age range (mean age: 66.4 ± 7.3) were examined with PET after a single bolus injection of [(11)C]ABP688, with many receiving arterial sampling. PET images were analyzed on a region of interest and a voxel level to compare mGluR5 binding in the brain between the two groups. Differences in [(11)C]ABP688 binding between patients with early- and late-onset depression were also assessed. In contrast to a previously published report in a younger cohort, no significant difference in [(11)C]ABP688 binding was observed between elderly subjects with MDD and healthy volunteers. [(11)C]ABP688 binding was also similar between subgroups with early- or late-onset depression. We believe this is the first study to examine mGluR5 expression in depression in the elderly. Although future work is required, results suggest potential differences in the pathophysiology of elderly depression versus depression earlier in life.
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Affiliation(s)
- C DeLorenzo
- Department of Psychiatry, Columbia University, New York, NY, USA,Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA,Department of Psychiatry, Stony Brook University, HSC-T-10, Room 40D, Stony Brook, NY 11794, USA. E-mail:
| | - J Sovago
- Novartis Institute for BioMedical Research, Novartis Pharma AG, Basel, Switzerland
| | - J Gardus
- Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
| | - J Xu
- Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, NY, USA
| | - J Yang
- Department of Preventive Medicine, Stony Brook University, Stony Brook, NY, USA
| | - R Behrje
- Novartis Pharmaceuticals Corporations, East Hanover, NJ, USA
| | - J S D Kumar
- Department of Psychiatry, Columbia University, New York, NY, USA
| | - D P Devanand
- Department of Psychiatry, Columbia University, New York, NY, USA
| | - G H Pelton
- Department of Psychiatry, Columbia University, New York, NY, USA
| | - C A Mathis
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - N S Mason
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - B Gomez-Mancilla
- Novartis Institute for BioMedical Research, Novartis Pharma AG, Basel, Switzerland
| | - H Aizenstein
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - J J Mann
- Department of Psychiatry, Columbia University, New York, NY, USA
| | - R V Parsey
- Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
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Arsenault D, Coulombe K, Zhu A, Gong C, Kil KE, Choi JK, Poutiainen P, Brownell AL. Loss of Metabotropic Glutamate Receptor 5 Function on Peripheral Benzodiazepine Receptor in Mice Prenatally Exposed to LPS. PLoS One 2015; 10:e0142093. [PMID: 26536027 PMCID: PMC4633140 DOI: 10.1371/journal.pone.0142093] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 10/16/2015] [Indexed: 11/18/2022] Open
Abstract
Parental microglial induced neuroinflammation, triggered by bacterial- or viral infections, can induce neuropsychiatric disorders like schizophrenia and autism to offspring in animal models. Recent investigations suggest that microglia, the resident immune cells of the brain, provides a link between neurotransmission, immune cell activation, brain inflammation and neuronal dysfunction seen with the offspring. Relatively little is known about how reduction of brain inflammation and restoration of glial function are associated with diminution of brain degeneration and behavioral deficits in offspring. Increased mGluR5 expression and the long-lasting excitotoxic effects of the neurotoxin during brain development are associated with the glial dysfunctions. We investigated the relationship of mGluR5 and PBR and how they regulate glial function and inflammatory processes in mice prenatally exposed to LPS (120μg/kg, between gestational days 15 and 17), an inflammatory model of a psychiatric disorder. Using PET imaging, we showed that pharmacological activation of mGluR5 during 5 weeks reduced expression of classic inflammation marker PBR in many brain areas and that this molecular association was not present in LPS-exposed offspring. The post-mortem analysis revealed that the down regulation of PBR was mediated through activation of mGluR5 in astrocytes. In addition, we demonstrated that this interaction is defective in a mouse model of the psychiatric deficit offering a novel insight of mGluR5 involvement to brain related disorders and PBR related imaging studies. In conclusion, mGluR5 driven glutamatergic activity regulates astrocytic functions associated with PBR (cholesterol transport, neurosteroidogenesis, glial phenotype) during maturation and could be associated with neuropsychiatric disorders in offspring.
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Affiliation(s)
- Dany Arsenault
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
| | - Katherine Coulombe
- Centre de Recherche du CHU de Québec, Axe Neurosciences, Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - Aijun Zhu
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
| | - Chunyu Gong
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
| | - Kun-Eek Kil
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
| | - Ji-Kyung Choi
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
| | - Pekka Poutiainen
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
| | - Anna-Liisa Brownell
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- * E-mail:
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