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Marie A, Kinet R, Helbling JC, Darricau M, Alfos S, Di Miceli M, Angelo MF, Foury A, Richard E, Trifilieff P, Mallet NP, Bosch-Bouju C. Impact of dietary vitamin A on striatal function in adult rats. FASEB J 2023; 37:e23037. [PMID: 37392372 DOI: 10.1096/fj.202300133r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/18/2023] [Accepted: 06/05/2023] [Indexed: 07/03/2023]
Abstract
The striatum is a brain structure involved in the control of voluntary movement. Striatum contains high amounts of retinoic acid, the active metabolite of vitamin A, as well as retinoid receptors, RARβ and RXRγ. Previous studies revealed that disruption of retinoid signaling initiated during development is deleterious for striatal physiology and related motor functions. However, the alteration of retinoid signaling, and the importance of vitamin A supply during adulthood on striatal physiology and function has never been established. In the present study, we investigated the impact of vitamin A supply on striatal function. Adult Sprague-Dawley rats were fed with three specific diets, either sub-deficient, sufficient, or enriched in vitamin A (0.4, 5, and 20 international units [IU] of retinol per g of diet, respectively) for 6 months. We first validated that vitamin A sub-deficient diet in adult rats constitutes a physiological model of retinoid signaling reduction in the striatum. We then revealed subtle alterations of fine motor skills in sub-deficient rats using a new behavioral apparatus specifically designed to test forepaw reach-and-grasp skills relying on striatal function. Finally, we showed using qPCR analysis and immunofluorescence that the striatal dopaminergic system per se was not affected by vitamin A sub-deficiency at adult age. Rather, cholinergic synthesis in the striatum and μ-opioid receptor expression in striosomes sub-territories were the most affected by vitamin A sub-deficiency starting at adulthood. Taken together these results revealed that retinoid signaling alteration at adulthood is associated with motor learning deficits together with discrete neurobiological alterations in the striatum.
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Affiliation(s)
- Anaïs Marie
- INRAE, Bordeaux INP, NutriNeuro, UMR 1286, University of Bordeaux, Bordeaux, France
| | - Rémi Kinet
- Institut des Maladies Neurodégénératives, UMR 5293, University of Bordeaux, Bordeaux, France
- CNRS UMR 5293, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France
| | | | - Morgane Darricau
- INRAE, Bordeaux INP, NutriNeuro, UMR 1286, University of Bordeaux, Bordeaux, France
- Institut des Maladies Neurodégénératives, UMR 5293, University of Bordeaux, Bordeaux, France
- CNRS UMR 5293, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France
| | - Serge Alfos
- INRAE, Bordeaux INP, NutriNeuro, UMR 1286, University of Bordeaux, Bordeaux, France
| | - Mathieu Di Miceli
- Worcester Biomedical Research Group, School of Science and the Environment, University of Worcester, Worcester, UK
| | | | - Aline Foury
- INRAE, Bordeaux INP, NutriNeuro, UMR 1286, University of Bordeaux, Bordeaux, France
| | - Emmanuel Richard
- INSERM, U1035, CHU Bordeaux, University of Bordeaux, Bordeaux, France
| | - Pierre Trifilieff
- INRAE, Bordeaux INP, NutriNeuro, UMR 1286, University of Bordeaux, Bordeaux, France
| | - Nicolas P Mallet
- Institut des Maladies Neurodégénératives, UMR 5293, University of Bordeaux, Bordeaux, France
- CNRS UMR 5293, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France
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Differential Retinoic Acid Signaling in the Hippocampus of Aged Rats with and without Memory Impairment. eNeuro 2021; 8:ENEURO.0120-21.2021. [PMID: 34417282 PMCID: PMC8442538 DOI: 10.1523/eneuro.0120-21.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 08/09/2021] [Accepted: 08/17/2021] [Indexed: 12/21/2022] Open
Abstract
Retinoic acid (RA), a metabolite of vitamin A, has many physiological functions, and mounting evidence points to important roles in cognition. In vitro experiments indicate that RA is involved in homeostatic synaptic scaling in the hippocampus, which supports overall network stability during learning. It has been previously determined that disrupted RA signaling in the hippocampus causes deterioration of memory, that RA signaling declines with age in brain, and that application of RA reverses this decline. Here, we explore whether RA signaling is altered in an animal model of neurocognitive aging. We used a Morris water maze protocol to study cognitive decline in aged rats, which assesses hippocampus-dependent spatial memory and reveals substantial interindividual differences in aged animals. Aged unimpaired (AU) rats perform on par with young (Y), while aged impaired (AI) animals exhibit spatial memory deficits. We show that the major substrate for RA, retinol binding protein 4 (RBP4), is decreased in AU rats, and retinol cell surface receptor declines with chronological age. Other affected components of RA signaling include selective increases in AI animals in hippocampal synthesis (RALDH1) and catabolism of RA (CYP26B1), RA receptor α, the RA regulated ionotropic glutamate receptor (GluR1), as well as fragile X mental retardation protein (FMRP). The results support the conclusion that, surprisingly, increased RA signaling in the aged hippocampus is associated with poor cognitive outcome.
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Urbanellis P, McEvoy CM, Škrtić M, Kaths JM, Kollmann D, Linares I, Ganesh S, Oquendo F, Sharma M, Mazilescu L, Goto T, Noguchi Y, John R, Mucsi I, Ghanekar A, Bagli D, Konvalinka A, Selzner M, Robinson LA. Transcriptome Analysis of Kidney Grafts Subjected to Normothermic Ex Vivo Perfusion Demonstrates an Enrichment of Mitochondrial Metabolism Genes. Transplant Direct 2021; 7:e719. [PMID: 34258386 PMCID: PMC8270593 DOI: 10.1097/txd.0000000000001157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/18/2021] [Accepted: 03/20/2021] [Indexed: 12/28/2022] Open
Abstract
Normothermic ex vivo kidney perfusion (NEVKP) has demonstrated superior outcomes for donation-after-cardiovascular death grafts compared with static cold storage (SCS). To determine the mechanisms responsible for this, we performed an unbiased genome-wide microarray analysis. METHODS Kidneys from 30-kg Yorkshire pigs were subjected to 30 min of warm ischemia followed by 8 h of NEVKP or SCS, or no storage, before autotransplantation. mRNA expression was analyzed on renal biopsies on postoperative day 3. Gene set enrichment analysis was performed using hallmark gene sets, Gene Ontology, and pathway analysis. RESULTS The gene expression profile of NEVKP-stored grafts closely resembled no storage kidneys. Gene set enrichment analysis demonstrated enrichment of fatty acid metabolism and oxidative phosphorylation following NEVKP, whereas SCS-enriched gene sets were related to mitosis, cell cycle checkpoint, and reactive oxygen species (q < 0.05). Pathway analysis demonstrated enrichment of lipid oxidation/metabolism, the Krebs cycle, and pyruvate metabolism in NEVKP compared with SCS (q < 0.05). Comparison of our findings with external data sets of renal ischemia-reperfusion injury revealed that SCS-stored grafts demonstrated similar gene expression profiles to ischemia-reperfusion injury, whereas the profile of NEVKP-stored grafts resembled recovered kidneys. CONCLUSIONS Increased transcripts of key mitochondrial metabolic pathways following NEVKP storage may account for improved donation-after-cardiovascular death graft function, compared with SCS, which promoted expression of genes typically perturbed during IRI.
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Affiliation(s)
- Peter Urbanellis
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Caitriona M. McEvoy
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, ON, Canada
| | - Marko Škrtić
- Division of Nephrology, Department of Medicine, University of Toronto, Toronto, ON, Canada
- Program in Cell Biology, The Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - J. Moritz Kaths
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
| | - Dagmar Kollmann
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Ivan Linares
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Sujani Ganesh
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Fabiola Oquendo
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Manraj Sharma
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Laura Mazilescu
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Program in Cell Biology, The Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - Toru Goto
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Yuki Noguchi
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Rohan John
- Laboratory Medicine and Pathobiology, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Istvan Mucsi
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, ON, Canada
| | - Anand Ghanekar
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Darius Bagli
- Departments of Surgery (Urology) and Physiology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Ana Konvalinka
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Markus Selzner
- Soham and Shaila Ajmera Family Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
| | - Lisa A. Robinson
- Program in Cell Biology, The Hospital for Sick Children Research Institute, Toronto, ON, Canada
- Division of Nephrology, The Hospital for Sick Children, Toronto, ON, Canada
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