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Sobral AF, Cunha A, Silva V, Gil-Martins E, Silva R, Barbosa DJ. Unveiling the Therapeutic Potential of Folate-Dependent One-Carbon Metabolism in Cancer and Neurodegeneration. Int J Mol Sci 2024; 25:9339. [PMID: 39273288 PMCID: PMC11395277 DOI: 10.3390/ijms25179339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 08/21/2024] [Accepted: 08/26/2024] [Indexed: 09/15/2024] Open
Abstract
Cellular metabolism is crucial for various physiological processes, with folate-dependent one-carbon (1C) metabolism playing a pivotal role. Folate, a B vitamin, is a key cofactor in this pathway, supporting DNA synthesis, methylation processes, and antioxidant defenses. In dividing cells, folate facilitates nucleotide biosynthesis, ensuring genomic stability and preventing carcinogenesis. Additionally, in neurodevelopment, folate is essential for neural tube closure and central nervous system formation. Thus, dysregulation of folate metabolism can contribute to pathologies such as cancer, severe birth defects, and neurodegenerative diseases. Epidemiological evidence highlights folate's impact on disease risk and its potential as a therapeutic target. In cancer, antifolate drugs that inhibit key enzymes of folate-dependent 1C metabolism and strategies targeting folate receptors are current therapeutic options. However, folate's impact on cancer risk is complex, varying among cancer types and dietary contexts. In neurodegenerative conditions, including Alzheimer's and Parkinson's diseases, folate deficiency exacerbates cognitive decline through elevated homocysteine levels, contributing to neuronal damage. Clinical trials of folic acid supplementation show mixed outcomes, underscoring the complexities of its neuroprotective effects. This review integrates current knowledge on folate metabolism in cancer and neurodegeneration, exploring molecular mechanisms, clinical implications, and therapeutic strategies, which can provide crucial information for advancing treatments.
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Affiliation(s)
- Ana Filipa Sobral
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, University Institute of Health Sciences-CESPU, 4585-116 Gandra, Portugal
- UCIBIO-Applied Molecular Biosciences Unit, Toxicologic Pathology Research Laboratory, University Institute of Health Sciences (1H-TOXRUN, IUCS-CESPU), 4585-116 Gandra, Portugal
| | - Andrea Cunha
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences-CESPU, 4585-116 Gandra, Portugal
| | - Vera Silva
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- CIQUP-IMS/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Eva Gil-Martins
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- CIQUP-IMS/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Renata Silva
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Daniel José Barbosa
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, University Institute of Health Sciences-CESPU, 4585-116 Gandra, Portugal
- UCIBIO-Applied Molecular Biosciences Unit, Translational Toxicology Research Laboratory, University Institute of Health Sciences (1H-TOXRUN, IUCS-CESPU), 4585-116 Gandra, Portugal
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Han H, Jang SH, Ahn JK, Lee CY. DNA repair-retarded isothermal CRISPR amplification for rapid, sensitive base excision repair enzyme assay. Anal Chim Acta 2024; 1314:342799. [PMID: 38876521 DOI: 10.1016/j.aca.2024.342799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/05/2024] [Accepted: 05/29/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND As a core enzyme in the base excision repair system, uracil DNA glycosylase (UDG) is indispensable in maintaining genomic integrity and normal cell cycles. Its abnormal activity intervenes in cancers and neurodegerative diseases. Previous UDG assays based on isothermal amplification and Clustered Regularly Interspaced Short Palindromic Repeats/Cas (CRISPR/Cas) system were fine in sensitivity, but exposed to complications in assay flow, time, and probe design. After isothermal amplification, a CRISPR/Cas reagent should be separately added with extra manual steps and its guide RNA (gRNA) should be designed, considering the presence of protospacer adjacent motif (PAM) site. RESULTS We herein describe a UDG-REtarded CRISPR Amplification assay, termed 'URECA'. In URECA, isothermal nucleic acid (NA) amplification and CRISPR/Cas12a system were tightly combined to constitute a one-pot, isothermal CRISPR amplification system. Isothermal NA amplification for a UDG substrate (US) with uracil (U) bases was designed to activate and boost CRISPR/Cas12a reaction. Such scheme enabled us to envision that UDG would halt the isothermal CRISPR amplification reaction by excising U bases and messing up the US. Based on this principle, the assay detected the UDG activity down to 9.17 x 10-4 U/mL in 50 min. With URECA, we fulfilled the recovery test of UDG activities in plasma and urine with high precision and reproducibility and reliably determined UDG activities in cell extracts. Also, we verified its capability to screen candidate UDG inhibitors, showing its potentials in practical application as well as drug discovery. SIGNIFICANCE URECA offers further merits: i) the assay is seamless. Following target recognition, the reactions proceed in one-step without any intervening steps, ii) probe design is simple. Unlike the conventional CRISPR/Cas12a-based assays, URECA does not consider the PAM site in probe design as Cas12a activation relies on instantaneous gRNA binding to single-stranded DNA strands. By rationally designing an enzyme substrate probe to be specific to other enzymes, while keeping a role as a template for isothermal CRISPR amplification, the detection principle of URECA will be expanded to devise biosensors for various enzymes of biological, clinical significance.
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Affiliation(s)
- Hyogu Han
- User Convenience Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan, 15588, South Korea; Department of Chemistry, Gangneung-Wonju National University, Gangneung, 25457, South Korea
| | - Se Hee Jang
- User Convenience Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan, 15588, South Korea; Department of Medical Device Engineering and Management, College of Medicine, Yonsei University, Seoul 03722, South Korea
| | - Jun Ki Ahn
- User Convenience Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan, 15588, South Korea.
| | - Chang Yeol Lee
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea.
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Cui C, Guo G, Chen TH. Toehold region triggered CRISPR/Cas12a trans-cleavage for detection of uracil-DNA glycosylase activity. Biotechnol J 2024; 19:e2400097. [PMID: 38987221 DOI: 10.1002/biot.202400097] [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: 02/19/2024] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 07/12/2024]
Abstract
DNA glycosylases are a group of enzymes that play a crucial role in the DNA repair process by recognizing and removing damaged or incorrect bases from DNA molecules, which maintains the integrity of the genetic information. The abnormal expression of uracil-DNA glycosylase (UDG), one of significant DNA glycosylases in the base-excision repair pathway, is linked to numerous diseases. Here, we proposed a simple UDG activity detection method based on toehold region triggered CRISPR/Cas12a trans-cleavage. The toehold region on hairpin DNA probe (HP) produced by UDG could induce the trans-cleavage of ssDNA with fluorophore and quencher, generating an obvious fluorescence signal. This protospacer adjacent motif (PAM)-free approach achieves remarkable sensitivity and specificity in detecting UDG, with a detection limit as low as 0.000368 U mL-1. Moreover, this method is able to screen inhibitors and measure UDG in complex biological samples. These advantages render it highly promising for applications in clinical diagnosis and drug discovery.
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Affiliation(s)
- Chenyu Cui
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
- Hong Kong Centre for Cerebro-cardiovascular Health Engineering, Hong Kong Science Park, Hong Kong, China
| | - Guihuan Guo
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Ting-Hsuan Chen
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, China
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Nagy N, Hádinger N, Tóth O, Rácz GA, Pintér T, Gál Z, Urbán M, Gócza E, Hiripi L, Acsády L, Vértessy BG. Characterization of dUTPase expression in mouse postnatal development and adult neurogenesis. Sci Rep 2024; 14:13139. [PMID: 38849394 PMCID: PMC11161619 DOI: 10.1038/s41598-024-63405-0] [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: 09/25/2023] [Accepted: 05/28/2024] [Indexed: 06/09/2024] Open
Abstract
The enzyme dUTPase has an essential role in maintaining genomic integrity. In mouse, nuclear and mitochondrial isoforms of the enzyme have been described. Here we present the isoform-specific mRNA expression levels in different murine organs during development using RT-qPCR. In this study, we analyzed organs of 14.5-day embryos and of postnatal 2-, 4-, 10-week- and 13-month-old mice. We demonstrate organ-, sex- and developmental stage-specific differences in the mRNA expression levels of both isoforms. We found high mRNA expression level of the nuclear isoform in the embryo brain, and the expression level remained relatively high in the adult brain as well. This was surprising, since dUTPase is known to play an important role in proliferating cells, and mass production of neural cells is completed by adulthood. Thus, we investigated the pattern of the dUTPase protein expression specifically in the adult brain with immunostaining and found that dUTPase is present in the germinative zones, the subventricular and the subgranular zones, where neurogenesis occurs and in the rostral migratory stream where neuroblasts migrate to the olfactory bulb. These novel findings suggest that dUTPase may have a role in cell differentiation and indicate that accurate dTTP biosynthesis can be vital, especially in neurogenesis.
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Affiliation(s)
- Nikolett Nagy
- Doctoral School of Biology, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, 1117, Budapest, Hungary.
- Institute of Molecular Life Sciences, Research Centre for Natural Sciences, HUN-REN, Magyar tudósok körútja 2, 1117, Budapest, Hungary.
| | - Nóra Hádinger
- Laboratory of Thalamus Research, Institute of Experimental Medicine, HUN-REN, Szigony utca 43, 1083, Budapest, Hungary
| | - Otília Tóth
- Institute of Molecular Life Sciences, Research Centre for Natural Sciences, HUN-REN, Magyar tudósok körútja 2, 1117, Budapest, Hungary
- Department of Applied Biotechnology and Food Sciences, Faculty of Chemical Technology and Biotechnology, BME Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Gergely Attila Rácz
- Institute of Molecular Life Sciences, Research Centre for Natural Sciences, HUN-REN, Magyar tudósok körútja 2, 1117, Budapest, Hungary
- Department of Applied Biotechnology and Food Sciences, Faculty of Chemical Technology and Biotechnology, BME Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Tímea Pintér
- Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert utca 4, 2100, Gödöllő, Hungary
| | - Zoltán Gál
- Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert utca 4, 2100, Gödöllő, Hungary
| | - Martin Urbán
- Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert utca 4, 2100, Gödöllő, Hungary
| | - Elen Gócza
- Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert utca 4, 2100, Gödöllő, Hungary
| | - László Hiripi
- Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert utca 4, 2100, Gödöllő, Hungary
- Laboratory Animal Science Coordination Center, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - László Acsády
- Laboratory of Thalamus Research, Institute of Experimental Medicine, HUN-REN, Szigony utca 43, 1083, Budapest, Hungary
| | - Beáta G Vértessy
- Institute of Molecular Life Sciences, Research Centre for Natural Sciences, HUN-REN, Magyar tudósok körútja 2, 1117, Budapest, Hungary.
- Department of Applied Biotechnology and Food Sciences, Faculty of Chemical Technology and Biotechnology, BME Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary.
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Vassal M, Martins F, Monteiro B, Tambaro S, Martinez-Murillo R, Rebelo S. Emerging Pro-neurogenic Therapeutic Strategies for Neurodegenerative Diseases: A Review of Pre-clinical and Clinical Research. Mol Neurobiol 2024:10.1007/s12035-024-04246-w. [PMID: 38816676 DOI: 10.1007/s12035-024-04246-w] [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: 01/03/2024] [Accepted: 05/14/2024] [Indexed: 06/01/2024]
Abstract
The neuroscience community has largely accepted the notion that functional neurons can be generated from neural stem cells in the adult brain, especially in two brain regions: the subventricular zone of the lateral ventricles and the subgranular zone in the dentate gyrus of the hippocampus. However, impaired neurogenesis has been observed in some neurodegenerative diseases, particularly in Alzheimer's, Parkinson's, and Huntington's diseases, and also in Lewy Body dementia. Therefore, restoration of neurogenic function in neurodegenerative diseases emerges as a potential therapeutic strategy to counteract, or at least delay, disease progression. Considering this, the present study summarizes the different neuronal niches, provides a collection of the therapeutic potential of different pro-neurogenic strategies in pre-clinical and clinical research, providing details about their possible modes of action, to guide future research and clinical practice.
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Affiliation(s)
- Mariana Vassal
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal
| | - Filipa Martins
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal
| | - Bruno Monteiro
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal
| | - Simone Tambaro
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, Huddinge, Sweden
| | - Ricardo Martinez-Murillo
- Neurovascular Research Group, Department of Translational Neurobiology, Cajal Institute (CSIC), Madrid, Spain
| | - Sandra Rebelo
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal.
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Mura E, Parazzini C, Tonduti D. Rare forms of hypomyelination and delayed myelination. HANDBOOK OF CLINICAL NEUROLOGY 2024; 204:225-252. [PMID: 39322381 DOI: 10.1016/b978-0-323-99209-1.00002-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
Hypomyelination is defined by the evidence of an unchanged pattern of deficient myelination on two MRIs performed at least 6 months apart in a child older than 1 year. When the temporal criteria are not fulfilled, and the follow-up MRI shows a progression of the myelination even if still not adequate for age, hypomyelination is excluded and the pattern is instead consistent with delayed myelination. This can be mild and nonspecific in some cases, while in other cases there is a severe delay that in the first disease stages could be difficult to differentiate from hypomyelination. In hypomyelinating leukodystrophies, hypomyelination is due to a primary impairment of myelin deposition, such as in Pelizaeus Merzabcher disease. Conversely, myelin lack is secondary, often to primary neuronal disorders, in delayed myelination and some condition with hypomyelination. Overall, the group of inherited white matter disorders with abnormal myelination has expanded significantly during the past 20 years. Many of these disorders have only recently been described, for many of them only a few patients have been reported and this contributes to make challenging the diagnostic process and the interpretation of Next Generation Sequencing results. In this chapter, we review the clinical and radiologic features of rare and lesser known forms of hypomyelination and delayed myelination not mentioned in other chapters of this handbook.
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Affiliation(s)
- Eleonora Mura
- Unit of Pediatric Neurology, Department of Biomedical and Clinical Sciences, V. Buzzi Children's Hospital, Università degli Studi di Milano, Milan, Italy; C.O.A.L.A (Center for Diagnosis and Treatment of Leukodystrophies), V. Buzzi Children's Hospital, Università degli Studi di Milano, Milan, Italy
| | - Cecilia Parazzini
- C.O.A.L.A (Center for Diagnosis and Treatment of Leukodystrophies), V. Buzzi Children's Hospital, Università degli Studi di Milano, Milan, Italy; Pediatric Radiology and Neuroradiology Department, V. Buzzi Children's Hospital, Milan, Italy
| | - Davide Tonduti
- Unit of Pediatric Neurology, Department of Biomedical and Clinical Sciences, V. Buzzi Children's Hospital, Università degli Studi di Milano, Milan, Italy; C.O.A.L.A (Center for Diagnosis and Treatment of Leukodystrophies), V. Buzzi Children's Hospital, Università degli Studi di Milano, Milan, Italy.
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Uma Maheswari G, Yamini B, Dhandapani V, Almutairi BO, Arokiyaraj S, Karuppiah KM. Methylenetetrahydrofolate reductase polymorphisms in dental caries-induced pulp inflammation and regeneration of dentine-pulp complex: Future perspectives. Saudi Dent J 2023; 35:1029-1038. [PMID: 38170041 PMCID: PMC10759554 DOI: 10.1016/j.sdentj.2023.08.008] [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: 12/29/2022] [Revised: 08/03/2023] [Accepted: 08/17/2023] [Indexed: 01/05/2024] Open
Abstract
Dental caries (DC)-induced pulp infections usually undergo the common endodontic treatment, root canal therapy (RCT). Endodontically treated teeth are devitalized, become brittle and susceptible for re-infection which eventually results in dental loss. These complications arise because the devitalized pulp losses its ability for innate homeostasis, repair and regeneration. Therefore, restoring the vitality, structure and function of the inflamed pulp and compromised dentin have become the focal points in regenerative endodontics. There are very few evidences, so far, that connect methylenetetrahydrofolate reductase single nucleotide polymorphisms (MTHFR-SNPs) and dental disorders. However, the primary consequences of MTHFR-SNPs, in terms of excessive homocysteine and folate deficiency, are well-known contributors to dental diseases. This article identifies the possible mechanisms by which MTHFR-SNP-carriers are susceptible for DC-induced pulp inflammation (PI); and discusses a cell-homing based strategy for in vivo transplantation in an orthotopic model to regenerate the functional dentine-pulp complex which includes dentinogenesis, neurogenesis and vasculogenesis, in the SNP-carriers.
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Affiliation(s)
- G. Uma Maheswari
- Department of Cardiology, SRM Medical College Hospital and Research Center, SRM Institute of Science and Technology, Kattankulathur, 603 203 Chennai, Tamil Nadu, India
| | - B. Yamini
- Department of Cardiology, SRM Medical College Hospital and Research Center, SRM Institute of Science and Technology, Kattankulathur, 603 203 Chennai, Tamil Nadu, India
| | - V.E. Dhandapani
- Department of Cardiology, SRM Medical College Hospital and Research Center, SRM Institute of Science and Technology, Kattankulathur, 603 203 Chennai, Tamil Nadu, India
| | - Bader O. Almutairi
- Department of Zoology, College of Science, King Saud University, P.O.Box 2455, 11451 Riyadh, Saudi Arabia
| | - Selvaraj Arokiyaraj
- Department of Food Science & Biotechnology, Sejong University, Seoul 05006, Korea
| | - Kanchana M. Karuppiah
- Department of Medical Research, SRM Medical College Hospital and Research Centre, SRM Institute of Science and Technology, Kattankulathur, 603 203 Chennai, Tamil Nadu, India
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Fan J, Ma Z, Zheng Y, Zhang M, Huang L, Liu H. Folate Deficiency Increased Microglial Amyloid-β Phagocytosis via the RAGE Receptor in Chronic Unpredictable Mild-Stress Rat and BV2 Cells. Nutrients 2023; 15:3501. [PMID: 37630692 PMCID: PMC10457913 DOI: 10.3390/nu15163501] [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: 07/05/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Depression is often considered one of the prevalent neuropsychiatric symptoms of Alzheimer's disease (AD). β-amyloid (Aβ) metabolism disorders and impaired microglia phagocytosis are potential pathological mechanisms between depression and AD. Folate deficiency (FD) is a risk factor for depression and AD. In this study, we used a chronic unpredictable mild stress (CUMS) rat model and a model of Aβ phagocytosis by BV2 cells to explore the potential mechanisms by which FD affects depression and AD. The results revealed that FD exacerbated depressive behavior and activated microglia in CUMS rats, leading to an increase in intracellular Aβ and phagocytosis-related receptors for advanced glycation end products (RAGE). Then, in vitro results showed that the expression of the RAGE receptor and M2 phenotype marker (CD206) were upregulated by FD treatment in BV2 cells, leading to an increase in Aβ phagocytosis. However, there was no significant difference in the expression of toll-like receptor 4 (TLR4) and clathrin heavy chain (CHC). Furthermore, when using the RAGE-specific inhibitor FPS-ZM1, there was no significant difference in Aβ uptake between folate-normal (FN) and FD BV2 cell groups. In conclusion, these findings suggest FD may promote microglia phagocytosis Aβ via regulating the expression of RAGE or microglia phenotype under Aβ treatment.
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Affiliation(s)
- Junting Fan
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
- Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Zewei Ma
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
- Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Yunqin Zheng
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
- Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Meilin Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
- Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Li Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
- Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Huan Liu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
- Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
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Marinina KS, Bezprozvanny IB, Egorova PA. A chlorzoxazone-folic acid combination improves cognitive affective decline in SCA2-58Q mice. Sci Rep 2023; 13:12588. [PMID: 37537226 PMCID: PMC10400576 DOI: 10.1038/s41598-023-39331-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023] Open
Abstract
Spinocerebellar ataxia type 2 (SCA2) is a polyglutamine disorder caused by a pathological expansion of CAG repeats in ATXN2 gene. SCA2 is accompanied by cerebellar degeneration and progressive motor decline. Cerebellar Purkinje cells (PCs) seem to be primarily affected in this disorder. The majority of the ataxia research is focused on the motor decline observed in ataxic patients and animal models of the disease. However, recent evidence from patients and ataxic mice suggests that SCA2 can also share the symptoms of the cerebellar cognitive affective syndrome. We previously reported that SCA2-58Q PC-specific transgenic mice exhibit anxiolytic behavior, decline in spatial memory, and a depressive-like state. Here we studied the effect of the activation of the small conductance calcium-activated potassium channels (SK channels) by chlorzoxazone (CHZ) combined with the folic acid (FA) on the PC firing and also motor, cognitive and affective symptoms in SCA2-58Q mice. We realized that CHZ-FA combination improved motor and cognitive decline as well as ameliorated mood alterations in SCA2-58Q mice without affecting the firing rate of their cerebellar PCs. Our results support the idea of the combination therapy for both ataxia and non-motor symptoms in ataxic mice without affecting the firing frequency of PCs.
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Affiliation(s)
- Ksenia S Marinina
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Ilya B Bezprozvanny
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Polina A Egorova
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.
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Association of Dietary α-Carotene and β-Carotene Intake with Low Cognitive Performance in Older Adults: A Cross-Sectional Study from the National Health and Nutrition Examination Survey. Nutrients 2023; 15:nu15010239. [PMID: 36615894 PMCID: PMC9823947 DOI: 10.3390/nu15010239] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
This study aims to examine the relationships of dietary α-carotene and β-carotene intake with cognitive function. The data were selected from the National Health and Nutrition Examination Survey (NHANES) 2011-2014. A total of 2009 participants were included in this analysis. Dietary α-carotene and β-carotene intake were averaged by two 24-h dietary recalls. The Consortium to Establish a Registry for Alzheimer's Disease Word Learning subset (CERAD W-L), Animal Fluency Test (AFT), and Digit Symbol Substitution Test (DSST) were used to evaluate cognitive function. Logistic regression and restricted cubic spline models were applied to explore the associations of dietary α-carotene and β-carotene intake with cognitive performance. After adjusting for all confounding factors, compared with individuals in the lowest quartile of β-carotene dietary intake, those in the highest quartile had lower risks of both CERAD W-L decline [odds ratio (OR) = 0.63, 95% confidence interval (CI): 0.44-0.90] and AFT decline (OR = 0.66, 95% CI: 0.47-0.94). In addition, the third quartile of β-carotene dietary intake had a significantly decreased risk of lower DSST (OR = 0.67, 95% CI: 0.48-0.83). Compared with the lowest quartile of α-carotene intake, the OR of AFT decline in the highest intake quartile was 0.66 (95% CI: 0.46, 0.94). For males, both dietary α-carotene and β-carotene intake were associated with a decreased risk of AFT decline (OR = 0.42, 95% CI: 0.25-0.71; OR = 0.51, 95% CI: 0.30-0.85, respectively). For females, dietary α-carotene intake was associated with a decreased risk of CERAD W-L decline (OR = 0.55, 95% CI: 0.33-0.91) and dietary β-carotene intake was associated with decreased risks of both CERAD W-L and AFT decline (OR = 0.37, 95% CI: 0.21-0.64; OR = 0.58, 95% CI: 0.37-0.91, respectively). Our results suggested that higher dietary α-carotene and β-carotene intake had inverse effects on cognitive function decline among older adults.
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11
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Melgar-Locatelli S, de Ceglia M, Mañas-Padilla MC, Rodriguez-Pérez C, Castilla-Ortega E, Castro-Zavala A, Rivera P. Nutrition and adult neurogenesis in the hippocampus: Does what you eat help you remember? Front Neurosci 2023; 17:1147269. [PMID: 36908779 PMCID: PMC9995971 DOI: 10.3389/fnins.2023.1147269] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Neurogenesis is a complex process by which neural progenitor cells (NPCs)/neural stem cells (NSCs) proliferate and differentiate into new neurons and other brain cells. In adulthood, the hippocampus is one of the areas with more neurogenesis activity, which is involved in the modulation of both emotional and cognitive hippocampal functions. This complex process is affected by many intrinsic and extrinsic factors, including nutrition. In this regard, preclinical studies performed in rats and mice demonstrate that high fats and/or sugars diets have a negative effect on adult hippocampal neurogenesis (AHN). In contrast, diets enriched with bioactive compounds, such as polyunsaturated fatty acids and polyphenols, as well as intermittent fasting or caloric restriction, can induce AHN. Interestingly, there is also growing evidence demonstrating that offspring AHN can be affected by maternal nutrition in the perinatal period. Therefore, nutritional interventions from early stages and throughout life are a promising perspective to alleviate neurodegenerative diseases by stimulating neurogenesis. The underlying mechanisms by which nutrients and dietary factors affect AHN are still being studied. Interestingly, recent evidence suggests that additional peripheral mediators may be involved. In this sense, the microbiota-gut-brain axis mediates bidirectional communication between the gut and the brain and could act as a link between nutritional factors and AHN. The aim of this mini-review is to summarize, the most recent findings related to the influence of nutrition and diet in the modulation of AHN. The importance of maternal nutrition in the AHN of the offspring and the role of the microbiota-gut-brain axis in the nutrition-neurogenesis relationship have also been included.
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Affiliation(s)
- Sonia Melgar-Locatelli
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Marialuisa de Ceglia
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,UGC Salud Mental, Hospital Universitario Regional de Málaga, Málaga, Spain
| | - M Carmen Mañas-Padilla
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Celia Rodriguez-Pérez
- Departamento de Nutrición y Bromatología, Facultad de Ciencias de la Salud, Universidad de Granada, Granada, Spain.,Instituto de Nutrición y Tecnología de los Alimentos 'José Mataix', Universidad de Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Estela Castilla-Ortega
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Adriana Castro-Zavala
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Patricia Rivera
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,UGC Salud Mental, Hospital Universitario Regional de Málaga, Málaga, Spain
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12
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Morega S, Gresita A, Mitran SI, Musat MI, Boboc IKS, Gheorman V, Udristoiu I, Albu CV, Streba CT, Catalin B, Rogoveanu I. Cerebrolysin Use in Patients with Liver Damage-A Translational Study. Life (Basel) 2022; 12:1791. [PMID: 36362945 PMCID: PMC9695462 DOI: 10.3390/life12111791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/26/2022] [Accepted: 11/02/2022] [Indexed: 09/15/2024] Open
Abstract
The treatment of acute life-threatening events in patients suffering from chronic pathologies is problematic, as physicians need to consider multisystemic drug effects. Regarding Cerebrolysin, a Sonic Hedgehog signaling pathway amplifier and one of the few approved neurotrophic treatments for stroke patients, concerns of excessive Hedgehog pathway activation that could accelerate NAFLD progression to cirrhosis seem valid. We investigated stroke patients treated with Cerebrolysin that presented elevated levels of aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT). We also investigated the efficiency of Cerebrolysin in reversing the neurogenesis inhibition within the hippocampus in a mouse model of NAFLD by evaluating behavior and histological outcomes. NeuN, BrdU and Iba1 positive signals in the cortex and hippocampus of the animals were also observed. Clinically, Cerebrolysin improved AST levels in a majority of stroke patients with hepatic damage. The same treatment in an experimental setup was able to reverse anxiety-like behavior in MCD mice, reducing their freezing time from 333.61 ± 21.81 s in MCD animals to 229.17 ± 26.28 in treated ones. The use of Cerebrolysin did not improve short-term memory nor rescued cell multiplication in the hippocampus after MCD food intake. Understanding the neuroprotective and neurotrophic effects that drugs have on NAFLD patients can significantly contribute to a suitable therapeutic approach.
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Affiliation(s)
- Shandiz Morega
- U.M.F. Doctoral School Craiova, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Andrei Gresita
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Biomedical Sciences, New York Institute of Technology, Old Westbury, NY 115680-8000, USA
| | - Smaranda Ioana Mitran
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Physiology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Madalina Iuliana Musat
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ianis Kevyn Stefan Boboc
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Victor Gheorman
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ion Udristoiu
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Carmen Valeria Albu
- Department of Neurology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Costin Teodor Streba
- Research Center of Gastroenterology and Hepatology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Bogdan Catalin
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Physiology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ion Rogoveanu
- Gastroenterology Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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13
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Ma F, Liu YZ, Liu M, Qiu JG, Zhang CY. Transcriptionally amplified synthesis of fluorogenic RNA aptamers for label-free DNA glycosylase assay. Chem Commun (Camb) 2022; 58:10229-10232. [PMID: 36004508 DOI: 10.1039/d2cc03628b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate for the first time the utilization of fluorogenic RNA aptamers for label-free uracil-DNA glycosylase (UDG) assay. Through rationally engineering the transcription machine with dU substitution, this assay requires only a single probe to simultaneously sense and amplify the UDG signal, achieving a low detection limit of 6.3 × 10-6 U mL-1. Moreover, it can be applied for screening UDG inhibitors and measuring endogenous UDG activity in different cells.
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Affiliation(s)
- Fei Ma
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China. .,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Ya-Zhen Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Meng Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Jian-Ge Qiu
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China.
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
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14
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Quan W, Li M, Jiao Y, Zeng M, He Z, Shen Q, Chen J. Effect of Dietary Exposure to Acrylamide on Diabetes-Associated Cognitive Dysfunction from the Perspectives of Oxidative Damage, Neuroinflammation, and Metabolic Disorders. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4445-4456. [PMID: 35364817 DOI: 10.1021/acs.jafc.2c00662] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Acrylamide is a toxic compound that is produced widely during food processing, but whether the daily dietary consumption of acrylamide can impair the cognitive dysfunction in diabetic individuals and the potential underlying mechanisms are unknown. The aim of the present study was to observe the changes in cognitive and memory performance caused by chronic acrylamide exposure and to evaluate its influence on the brain morphology, oxidative damage, neuroinflammation, and brain metabolic disturbance. Goto-Kakizaki (GK) rats, a rat model of diabetes, were orally administered acrylamide at 1 mg/kg body weight for 8 weeks. The results of the novel object recognition and Y-maze tests showed that the consumption of acrylamide significantly aggravated diabetes-associated cognitive dysfunction in GK rats. Acrylamide increased reactive oxygen species and malondialdehyde formation and reduced glutathione levels, catalase, and total antioxidant capacity activity, which caused a succession of events associated with oxidative damage, including glial cell activation. After the activation of astrocytes and microglia, related cytokines, including interleukin-1β, interleukin-6, tumor necrosis factor-α, and lipopolysaccharide, were released, amyloid β-protein was accumulated, brain-derived neurotrophic factor was decreased, and the expression of caspase-3 and caspase-9 was increased, which aggravated neuroinflammation. Furthermore, there was perturbation of some important metabolites, including glutamic acid, citric acid, pyruvic acid, lactate, and sphinganine, and their related glucose, amino acid, and energy metabolism pathways in the brain. This work helps to demonstrate the effect of consumption of acrylamide in the daily diet on diabetes-associated cognitive dysfunction and its underlying mechanisms.
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Affiliation(s)
- Wei Quan
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Maiquan Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Ye Jiao
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Maomao Zeng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhiyong He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qingwu Shen
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Jie Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
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15
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Li HZ, Liu KG, Zeng NX, Wu XF, Lu WJ, Xu HF, Yan C, Wu LL. Luteolin Enhances Choroid Plexus 5-MTHF Brain Transport to Promote Hippocampal Neurogenesis in LOD Rats. Front Pharmacol 2022; 13:826568. [PMID: 35401160 PMCID: PMC8993213 DOI: 10.3389/fphar.2022.826568] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/22/2022] [Indexed: 12/19/2022] Open
Abstract
Folates, provided by food, are commonly used antidepressant synergists in late-onset depression (LOD). However, increased intake of folic acid in the elderly population might lead to the accumulation of unmetabolized folic acid in the systemic circulation, leading to enhanced deterioration of the central nervous system function. In addition, folates cannot access the brain directly because of the blood-brain barrier. Choroid plexus (CP) 5-methyltetrahydrofolate (5-MTHF) brain transport plays a critical role in regulating the cerebrospinal fluid (CSF) 5-MTHF content. Luteolin is a natural flavonoid that has antidepressant effects and is involved in the anti-folate resistance pathway. It remains unclear whether the antidepressant effects of luteolin are associated with the CP 5-MTHF brain transport. In this study, 20-21-month-old Wistar rats were exposed to the chronic unpredictable mild stress (CUMS) protocol for 6 consecutive weeks to explore the long-term effects of luteolin on behavior, 5-MTHF levels, hippocampal neurogenesis, and folate brain transport of the CP. In vitro primary hippocampal neural stem cells (NSCs) cultured in media containing 10% CSF from each group of rats and choroid plexus epithelial cells (CPECs) cultured in media containing 20 μM luteolin were treated with 100 μM corticosterone and 40 mg/ml D-galactose. We found that aged rats exposed to CUMS showed a significantly reduced sucrose preference, decreased locomotion activity in the open field test and accuracy of the Morris water maze test, increased immobility time in the forced swimming test, accelerated dysfunctional neurogenesis and neuronal loss in the dentate gyrus of LOD rats, as well as decreased CSF and hippocampus 5-MTHF levels, and zona occludens protein 1 (ZO-1), proton-coupled folate transporter (PCFT), and reduced folate carrier (RFC) protein levels. In vitro assays showed media containing 10% aged CSF or LOD+ Luteolin-CSF significantly increased the viability of CORT + D-gal-injured NSCs and alleviated dysfunctional neurogenesis and neuronal loss compared with the CORT + D-gal medium. However, media containing 10% LOD-CSF had no such effect. In the meantime, induction of CORT + D-gal significantly decreased the ZO-1, PCFT, RFC, and folate receptor alpha (FR-α) protein levels and transepithelial electrical resistance in rat CPECs. As expected, luteolin treatment was effective in improving these abnormal changes. These findings suggested that luteolin could ameliorate CUMS-induced LOD-like behaviors by enhancing the folate brain transport.
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Affiliation(s)
- Hui-Zhen Li
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kai-Ge Liu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ning-Xi Zeng
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiao-Feng Wu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wen-Jun Lu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Han-Fang Xu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Can Yan
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Li-Li Wu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
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16
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Eszlari N, Bruncsics B, Millinghoffer A, Hullam G, Petschner P, Gonda X, Breen G, Antal P, Bagdy G, Deakin JFW, Juhasz G. Biology of Perseverative Negative Thinking: The Role of Timing and Folate Intake. Nutrients 2021; 13:4396. [PMID: 34959947 PMCID: PMC8703428 DOI: 10.3390/nu13124396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/02/2021] [Accepted: 12/06/2021] [Indexed: 11/20/2022] Open
Abstract
Past-oriented rumination and future-oriented worry are two aspects of perseverative negative thinking related to the neuroticism endophenotype and associated with depression and anxiety. Our present aim was to investigate the genomic background of these two aspects of perseverative negative thinking within separate groups of individuals with suboptimal versus optimal folate intake. We conducted a genome-wide association study in the UK Biobank database (n = 72,621) on the "rumination" and "worry" items of the Eysenck Personality Inventory Neuroticism scale in these separate groups. Optimal folate intake was related to lower worry, but unrelated to rumination. In contrast, genetic associations for worry did not implicate specific biological processes, while past-oriented rumination had a more specific genetic background, emphasizing its endophenotypic nature. Furthermore, biological pathways leading to rumination appeared to differ according to folate intake: purinergic signaling and circadian regulator gene ARNTL emerged in the whole sample, blastocyst development, DNA replication, and C-C chemokines in the suboptimal folate group, and prostaglandin response and K+ channel subunit gene KCNH3 in the optimal folate group. Our results point to possible benefits of folate in anxiety disorders, and to the importance of simultaneously taking into account genetic and environmental factors to determine personalized intervention in polygenic and multifactorial disorders.
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Affiliation(s)
- Nora Eszlari
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (P.P.); (G.B.); (G.J.)
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (A.M.); (X.G.)
| | - Bence Bruncsics
- Department of Measurement and Information Systems, Budapest University of Technology and Economics, Magyar Tudósok krt. 2, H-1521 Budapest, Hungary; (B.B.); (G.H.); (P.A.)
| | - Andras Millinghoffer
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (A.M.); (X.G.)
- Department of Measurement and Information Systems, Budapest University of Technology and Economics, Magyar Tudósok krt. 2, H-1521 Budapest, Hungary; (B.B.); (G.H.); (P.A.)
| | - Gabor Hullam
- Department of Measurement and Information Systems, Budapest University of Technology and Economics, Magyar Tudósok krt. 2, H-1521 Budapest, Hungary; (B.B.); (G.H.); (P.A.)
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary
| | - Peter Petschner
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (P.P.); (G.B.); (G.J.)
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary
- Bioinformatics Center, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Xenia Gonda
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (A.M.); (X.G.)
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary
- Department of Psychiatry and Psychotherapy, Semmelweis University, Gyulai Pál utca 2, H-1085 Budapest, Hungary
| | - Gerome Breen
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Memory Lane, London SE5 8AF, UK;
- UK National Institute for Health Research (NIHR) Maudsley Biomedical Research Centre (BRC), London SE5 8AF, UK
| | - Peter Antal
- Department of Measurement and Information Systems, Budapest University of Technology and Economics, Magyar Tudósok krt. 2, H-1521 Budapest, Hungary; (B.B.); (G.H.); (P.A.)
| | - Gyorgy Bagdy
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (P.P.); (G.B.); (G.J.)
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (A.M.); (X.G.)
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary
| | - John Francis William Deakin
- Division of Neuroscience and Experimental Psychology, Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Road, Manchester M13 9PL, UK;
| | - Gabriella Juhasz
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary; (P.P.); (G.B.); (G.J.)
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Hungarian Brain Research Program, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary
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17
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A New Class of Uracil-DNA Glycosylase Inhibitors Active against Human and Vaccinia Virus Enzyme. Molecules 2021; 26:molecules26216668. [PMID: 34771075 PMCID: PMC8587785 DOI: 10.3390/molecules26216668] [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] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/24/2021] [Accepted: 10/30/2021] [Indexed: 11/17/2022] Open
Abstract
Uracil-DNA glycosylases are enzymes that excise uracil bases appearing in DNA as a result of cytosine deamination or accidental dUMP incorporation from the dUTP pool. The activity of Family 1 uracil-DNA glycosylase (UNG) activity limits the efficiency of antimetabolite drugs and is essential for virulence in some bacterial and viral infections. Thus, UNG is regarded as a promising target for antitumor, antiviral, antibacterial, and antiprotozoal drugs. Most UNG inhibitors presently developed are based on the uracil base linked to various substituents, yet new pharmacophores are wanted to target a wide range of UNGs. We have conducted virtual screening of a 1,027,767-ligand library and biochemically screened the best hits for the inhibitory activity against human and vaccinia virus UNG enzymes. Although even the best inhibitors had IC50 ≥ 100 μM, they were highly enriched in a common fragment, tetrahydro-2,4,6-trioxopyrimidinylidene (PyO3). In silico, PyO3 preferably docked into the enzyme's active site, and in kinetic experiments, the inhibition was better consistent with the competitive mechanism. The toxicity of two best inhibitors for human cells was independent of the presence of methotrexate, which is consistent with the hypothesis that dUMP in genomic DNA is less toxic for the cell than strand breaks arising from the massive removal of uracil. We conclude that PyO3 may be a novel pharmacophore with the potential for development into UNG-targeting agents.
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Nieraad H, Pannwitz N, de Bruin N, Geisslinger G, Till U. Hyperhomocysteinemia: Metabolic Role and Animal Studies with a Focus on Cognitive Performance and Decline-A Review. Biomolecules 2021; 11:1546. [PMID: 34680179 PMCID: PMC8533891 DOI: 10.3390/biom11101546] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/05/2021] [Accepted: 10/09/2021] [Indexed: 12/18/2022] Open
Abstract
Disturbances in the one-carbon metabolism are often indicated by altered levels of the endogenous amino acid homocysteine (HCys), which is additionally discussed to causally contribute to diverse pathologies. In the first part of the present review, we profoundly and critically discuss the metabolic role and pathomechanisms of HCys, as well as its potential impact on different human disorders. The use of adequate animal models can aid in unravelling the complex pathological processes underlying the role of hyperhomocysteinemia (HHCys). Therefore, in the second part, we systematically searched PubMed/Medline for animal studies regarding HHCys and focused on the potential impact on cognitive performance and decline. The majority of reviewed studies reported a significant effect of HHCys on the investigated behavioral outcomes. Despite of persistent controversial discussions about equivocal findings, especially in clinical studies, the present evaluation of preclinical evidence indicates a causal link between HHCys and cognition-related- especially dementia-like disorders, and points out the further urge for large-scale, well-designed clinical studies in order to elucidate the normalization of HCys levels as a potential preventative or therapeutic approach in human pathologies.
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Affiliation(s)
- Hendrik Nieraad
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (N.P.); (N.d.B.); (G.G.)
| | - Nina Pannwitz
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (N.P.); (N.d.B.); (G.G.)
| | - Natasja de Bruin
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (N.P.); (N.d.B.); (G.G.)
| | - Gerd Geisslinger
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (N.P.); (N.d.B.); (G.G.)
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Uwe Till
- Former Institute of Pathobiochemistry, Friedrich-Schiller-University Jena, Nonnenplan 2, 07743 Jena, Germany;
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19
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Arutjunyan AV, Kerkeshko GO, Milyutina YP, Shcherbitskaia AD, Zalozniaia IV. Prenatal Stress in Maternal Hyperhomocysteinemia: Impairments in the Fetal Nervous System Development and Placental Function. BIOCHEMISTRY (MOSCOW) 2021; 86:716-728. [PMID: 34225594 DOI: 10.1134/s0006297921060092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The article presents current views on maternal hyperhomocysteinemia (HHcy) as an important factor causing prenatal stress and impaired nervous system development in fetuses and newborns in early ontogenesis, as well as complications in adulthood. Experimental data demonstrate that prenatal HHcy (PHHcy) affects the morphological maturation of the brain and activity of its neurotransmitter systems. Cognitive deficit observed in the offspring subjected to PHHcy in experimental studies can presumably cause the predisposition to various neurodegenerative diseases, as the role of maternal HHcy in the pathogenesis such diseases has been proven in clinical studies. The review also discusses molecular mechanisms of the HHcy neurotoxic action on the nervous system development in the prenatal and early postnatal periods, which include oxidative stress, apoptosis activation, changes in the DNA methylation patterns and microRNA levels, altered expression and processing of neurotrophins, and neuroinflammation induced by an increased production of pro-inflammatory cytokines. Special attention is given to the maternal HHcy impact on the placenta function and its possible contribution to the brain function impairments in the offspring. Published data suggest that some effects of PHHcy on the developing fetal brain can be due to the disturbances in the transport functions of the placenta resulting in an insufficient supply of nutrients necessary for the proper formation and functioning of brain structures.
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Affiliation(s)
- Alexander V Arutjunyan
- Research Institute of Obstetrics, Gynecology and Reproductology named after D.O.Ott, St. Petersburg, 199034, Russia. .,St. Petersburg Institute of Bioregulation and Gerontology, St. Petersburg, 197110, Russia
| | - Gleb O Kerkeshko
- St. Petersburg Institute of Bioregulation and Gerontology, St. Petersburg, 197110, Russia
| | - Yuliya P Milyutina
- Research Institute of Obstetrics, Gynecology and Reproductology named after D.O.Ott, St. Petersburg, 199034, Russia
| | - Anastasiia D Shcherbitskaia
- Research Institute of Obstetrics, Gynecology and Reproductology named after D.O.Ott, St. Petersburg, 199034, Russia.,Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, 104223, Russia
| | - Irina V Zalozniaia
- Research Institute of Obstetrics, Gynecology and Reproductology named after D.O.Ott, St. Petersburg, 199034, Russia
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20
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Anitha A, Viswambharan V, Thanseem I, Iype M, Parakkal R, Surendran SP, Mundalil MV. Vitamins and Cognition: A Nutrigenomics Perspective. CURRENT NUTRITION & FOOD SCIENCE 2021. [DOI: 10.2174/1573401316999200901180443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The rise in the prevalence of neurodegenerative and neurodevelopmental cognitive disorders
combined with a lack of efficient therapeutic strategies has necessitated the need to develop alternate
approaches. Dietary supplements are now being considered as a complementary and alternative
medicine for cognitive impairments. Considerable evidence suggests the role of vitamins in
modulating the genetic and epigenetic factors implicated in neuropsychiatric, neurodevelopmental
and neurodegenerative disorders. In this review, we provide an overview of the implications of nutrigenomics
with reference to vitamins that are suggested to boost cognitive functions (nootropic vitamins).
Several vitamins have been found to possess antioxidant and anti-inflammatory properties
which make them potential candidates in preventing or delaying age-related neurodegeneration and
cognitive decline. Well-designed longitudinal studies are essential to examine the association between
vitamins and cognitive functions. Future studies linking nutrition with advances in neuroscience,
genomics and epigenomics would provide novel approaches to managing cognitive disorders.
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Affiliation(s)
- Ayyappan Anitha
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Shoranur, Palakkad 679 523, Kerala, India
| | - Vijitha Viswambharan
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Shoranur, Palakkad 679 523, Kerala, India
| | - Ismail Thanseem
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Shoranur, Palakkad 679 523, Kerala, India
| | - Mary Iype
- Government Medical College, Thiruvananthapuram 695 011, Kerala, India
| | - Rahna Parakkal
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Shoranur, Palakkad 679 523, Kerala, India
| | - Sumitha P. Surendran
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Shoranur, Palakkad 679 523, Kerala, India
| | - Mahesh V. Mundalil
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Shoranur, Palakkad 679 523, Kerala, India
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21
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Bacon ER, Brinton RD. Epigenetics of the developing and aging brain: Mechanisms that regulate onset and outcomes of brain reorganization. Neurosci Biobehav Rev 2021; 125:503-516. [PMID: 33657435 DOI: 10.1016/j.neubiorev.2021.02.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 02/17/2021] [Accepted: 02/23/2021] [Indexed: 12/11/2022]
Abstract
Brain development is a life-long process that encompasses several critical periods of transition, during which significant cognitive changes occur. Embryonic development, puberty, and reproductive senescence are all periods of transition that are hypersensitive to environmental factors. Rather than isolated episodes, each transition builds upon the last and is influenced by consequential changes that occur in the transition before it. Epigenetic marks, such as DNA methylation and histone modifications, provide mechanisms by which early events can influence development, cognition, and health outcomes. For example, parental environment influences imprinting patterns in gamete cells, which ultimately impacts gene expression in the embryo which may result in hypersensitivity to poor maternal nutrition during pregnancy, raising the risks for cognitive impairment later in life. This review explores how epigenetics induce and regulate critical periods, and also discusses how early environmental interactions prime a system towards a particular health outcome and influence susceptibility to disease or cognitive impairment throughout life.
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Affiliation(s)
- Eliza R Bacon
- Department of Neuroscience, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA; The Center for Precision Medicine, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Roberta Diaz Brinton
- Department of Neuroscience, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA; Center for Innovation in Brain Science, School of Medicine, University of Arizona, Tucson, AZ, 85721, USA.
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22
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Schott BH, Kronenberg G, Schmidt U, Düsedau HP, Ehrentraut S, Geisel O, von Bohlen Und Halbach O, Gass P, Dunay IR, Hellweg R. Robustly High Hippocampal BDNF levels under Acute Stress in Mice Lacking the Full-length p75 Neurotrophin Receptor. PHARMACOPSYCHIATRY 2021; 54:205-213. [PMID: 33592642 DOI: 10.1055/a-1363-1680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) exerts its effects on neural plasticity via 2 distinct receptor types, the tyrosine kinase TrkB and the p75 neurotrophin receptor (p75NTR). The latter can promote inflammation and cell death while TrkB is critically involved in plasticity and memory, particularly in the hippocampus. Acute and chronic stress have been associated with suppression of hippocampal BDNF expression and impaired hippocampal plasticity. We hypothesized that p75NTR might be involved in the hippocampal stress response, in particular in stress-induced BDNF suppression, which might be accompanied by increased neuroinflammation. METHOD We assessed hippocampal BDNF protein concentrations in wild-type mice compared that in mice lacking the long form of the p75NTR (p75NTRExIII-/-) with or without prior exposure to a 1-hour restraint stress challenge. Hippocampal BDNF concentrations were measured using an optimized ELISA. Furthermore, whole-brain mRNA expression of pro-inflammatory interleukin-6 (Il6) was assessed with RT-PCR. RESULTS Deletion of full-length p75NTR was associated with higher hippocampal BDNF protein concentration in the stress condition, suggesting persistently high hippocampal BDNF levels in p75NTR-deficient mice, even under stress. Stress elicited increased whole-brain Il6 mRNA expression irrespective of genotype; however, p75NTRExIII-/- mice showed elevated baseline Il6 expression and thus a lower relative increase. CONCLUSIONS Our results provide evidence for a role of p75NTR signaling in the regulation of hippocampal BDNF levels, particularly under stress. Furthermore, p75NTR signaling modulates baseline but not stress-related Il6 gene expression in mice. Our findings implicate p75NTR signaling as a potential pathomechanism in BDNF-dependent modulation of risk for neuropsychiatric disorders.
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Affiliation(s)
- Björn H Schott
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany.,Department of Psychiatry and Psychotherapy, Charité Universitätsmedizin Berlin, Berlin, Germany.,Leibniz Institute for Neurobiology, Department of Behavioral Neurology, Magdeburg, Germany.,German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
| | - Golo Kronenberg
- Department of Psychiatry and Psychotherapy, Charité Universitätsmedizin Berlin, Berlin, Germany.,University of Leicester and Leicestershire Partnership NHS Trust, Leicester, United Kingdom
| | - Ulrike Schmidt
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany.,Department of Psychiatry and Psychotherapy, University Medical Center Bonn, Bonn, Germany
| | - Henning P Düsedau
- Institute of Inflammation and Neurodegeneration, Otto von Guericke University, Magdeburg, Germany
| | - Stefanie Ehrentraut
- Institute of Inflammation and Neurodegeneration, Otto von Guericke University, Magdeburg, Germany
| | - Olga Geisel
- Department of Psychiatry and Psychotherapy, Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | - Peter Gass
- Central Institute for Mental Health, Department of Psychiatry and Psychotherapy, Heidelberg University, Mannheim Faculty, Germany
| | - Ildiko Rita Dunay
- Institute of Inflammation and Neurodegeneration, Otto von Guericke University, Magdeburg, Germany
| | - Rainer Hellweg
- Department of Psychiatry and Psychotherapy, Charité Universitätsmedizin Berlin, Berlin, Germany
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23
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Li N, Zhang D, Cao S, Qiao M, Zhang P, Zhao Q, Shen Y, Huang X, Song L. The effects of folic acid on RNA m6A methylation in hippocampus as well as learning and memory ability of rats with acute lead exposure. J Funct Foods 2021. [DOI: 10.1016/j.jff.2020.104276] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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24
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Schlunk F, Fischer P, Princen HMG, Rex A, Prinz V, Foddis M, Lütjohann D, Laufs U, Endres M. No effects of PCSK9-inhibitor treatment on spatial learning, locomotor activity, and novel object recognition in mice. Behav Brain Res 2020; 396:112875. [PMID: 32858115 DOI: 10.1016/j.bbr.2020.112875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 07/30/2020] [Accepted: 08/18/2020] [Indexed: 10/23/2022]
Abstract
Monoclonal anti-proprotein convertase subtilisin/kexin type 9 (PSCK9) neutralizing antibodies effectively lower plasma cholesterol levels and decrease cardiovascular events but also raised some concern that cognitive function could worsen as a side effect. Here, we performed experiments in mice to characterize the effect of anti-PCSK9 antibodies on behavior and cognitive function in detail. APOE*3Leiden.CETP mice and B6129SF1/J wildtype mice were fed a Western type diet and treated with the fully human anti-PCSK9 antibody CmAb1 (PL-45134; 10mg*kg-1 s.c.) or vehicle for 6 weeks. Locomotor activity, anxiety levels, recognition memory, and spatial learning were investigated using the open field, novel object recognition test, and Morris water maze, respectively. Serum cholesterol levels in APOE*3Leiden.CETP mice after treatment with anti-PCSK9 antibody were significantly lower compared to controls whereas cholesterol levels in B6129SF1/J wildtype mice remained unchanged at low levels. No apparent differences were found regarding locomotor activity, anxiety, recognition memory, and spatial learning between animals treated with anti-PCSK9 antibody or vehicle in APOE*3Leiden.CETP and B6129SF1/J wildtype mice. In this study, we found no evidence that treatment with anti-PCSK9 antibodies lead to differences in behavior or changes of cognition in mice.
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Affiliation(s)
- Frieder Schlunk
- Klinik und Hochschulambulanz für Neurologie mit Abteilung für Experimentelle Neurologie, Center for Stroke Research Berlin (CSB), and NeuroCure, Charité University Medicine Berlin, Germany; Department of Neuroradiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Paul Fischer
- Klinik und Hochschulambulanz für Neurologie mit Abteilung für Experimentelle Neurologie, Center for Stroke Research Berlin (CSB), and NeuroCure, Charité University Medicine Berlin, Germany
| | - Hans M G Princen
- Metabolic Health Research, The Netherlands Organization of Applied Scientific Research (TNO), Gaubius Laboratory, Leiden, the Netherlands
| | - Andre Rex
- Klinik und Hochschulambulanz für Neurologie mit Abteilung für Experimentelle Neurologie, Center for Stroke Research Berlin (CSB), and NeuroCure, Charité University Medicine Berlin, Germany
| | - Vincent Prinz
- Department of Neurosurgery, Charité University Medicine Berlin, Germany
| | - Marco Foddis
- Klinik und Hochschulambulanz für Neurologie mit Abteilung für Experimentelle Neurologie, Center for Stroke Research Berlin (CSB), and NeuroCure, Charité University Medicine Berlin, Germany
| | - Dieter Lütjohann
- Department of Clinical Pharmacology, University of Bonn, Bonn, Germany
| | - Ulrich Laufs
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstraße 20, 04103, Leipzig, Germany
| | - Matthias Endres
- Klinik und Hochschulambulanz für Neurologie mit Abteilung für Experimentelle Neurologie, Center for Stroke Research Berlin (CSB), and NeuroCure, Charité University Medicine Berlin, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Germany; Berlin Institute of Health (BIH), Berlin, Germany; German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany.
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25
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Welbat JU, Naewla S, Pannangrong W, Sirichoat A, Aranarochana A, Wigmore P. Neuroprotective effects of hesperidin against methotrexate-induced changes in neurogenesis and oxidative stress in the adult rat. Biochem Pharmacol 2020; 178:114083. [PMID: 32522593 DOI: 10.1016/j.bcp.2020.114083] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 02/06/2023]
Abstract
Methotrexate (MTX) induces the formation of reactive oxygen species (ROS) and leads to neurotoxicity. The drug also negatively impacts neurogenesis and memory. Hesperidin (Hsd) is a major flavanoid with multiple beneficial pharmacological effects such as anti-oxidation, anti-inflammation, and neuroprotective effects. The aim of our study was to investigate the neuroprotective effects of Hsd against MTX-induced alterations in oxidative stress and neurogenesis. Sprague Dawley rats were divided into four groups: 1) a vehicle group, which received saline and propylene glycol, 2) an Hsd group, which was orally administered with Hsd (100 mg/kg) for 21 days, 3) an MTX group, which received MTX (75 mg/kg) by intravenous injection on days 8 and 15, and 4) an MTX + Hsd group, which received both MTX and Hsd. After treatment with MTX, p21-positive cells had increased significantly and doublecortin (DCX) expression in the hippocampus had decreased significantly. Treatment with MTX also increased malondialdehyde (MDA) in both the hippocampus and prefrontal cortex and decreased levels of brain-derived neurotropic factor (BDNF) and nuclear factor erythroid 2-related factor 2 (Nrf2) in the hippocampus and prefrontal cortex. Additionally, there were significant decreases in superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) in the hippocampus and prefrontal cortex in the MTX group. However, co-treatment with Hsd ameliorated the negative effects of MTX on neurogenesis, oxidative stress, and antioxidant enzymes. These findings suggest that Hsd may be able to prevent neurotoxic effects of MTX by reducing oxidative stress and enhancing hippocampal neurogenesis.
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Affiliation(s)
- Jariya Umka Welbat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neuroscience Research and Development Group, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Salinee Naewla
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Wanassanan Pannangrong
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Apiwat Sirichoat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Anusara Aranarochana
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Peter Wigmore
- School of Life Sciences, Medical School, Queen's Medical Centre, Nottingham University, Nottingham, United Kingdom
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26
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Post-weaning folate deficiency induces a depression-like state via neuronal immaturity of the dentate gyrus in mice. J Pharmacol Sci 2020; 143:97-105. [PMID: 32173264 DOI: 10.1016/j.jphs.2020.02.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/10/2020] [Accepted: 02/13/2020] [Indexed: 12/21/2022] Open
Abstract
Folate deficiency has been suggested as a risk factor for depression in preclinical and clinical studies. Several hypotheses of mechanisms underlying folate deficiency-induced depressive symptoms have been proposed, but the detailed mechanisms are still unclear. In this study, we assessed whether post-weaning folate deficiency affect neurological and psychological function. The low folate diet-fed mice showed depression-like behavior in the forced swim test. In contrast, spontaneous locomotor activity, social behavior, coordinated motor skills, anxiety-like behavior and spatial memory did not differ between control and low folate diet-fed mice. In the dentate gyrus (DG) of the hippocampus, decreased number of newborn mature neurons and increased number of immature neurons were observed in low folate diet-fed mice. Staining with Golgi-Cox method revealed that dendritic complexity, spine density and the number of mature spines of neurons were markedly reduced in the DG of low folate diet-fed mice. Stress response of neurons indicated as c-Fos expression was also reduced in the DG of low folate diet-fed mice. These results suggest that reduction in the degree of maturation of newborn hippocampal neurons underlies folate deficiency-induced depressive symptoms.
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27
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Kim DV, Makarova AV, Miftakhova RR, Zharkov DO. Base Excision DNA Repair Deficient Cells: From Disease Models to Genotoxicity Sensors. Curr Pharm Des 2020; 25:298-312. [PMID: 31198112 DOI: 10.2174/1381612825666190319112930] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 03/13/2019] [Indexed: 12/29/2022]
Abstract
Base excision DNA repair (BER) is a vitally important pathway that protects the cell genome from many kinds of DNA damage, including oxidation, deamination, and hydrolysis. It involves several tightly coordinated steps, starting from damaged base excision and followed by nicking one DNA strand, incorporating an undamaged nucleotide, and DNA ligation. Deficiencies in BER are often embryonic lethal or cause morbid diseases such as cancer, neurodegeneration, or severe immune pathologies. Starting from the early 1980s, when the first mammalian cell lines lacking BER were produced by spontaneous mutagenesis, such lines have become a treasure trove of valuable information about the mechanisms of BER, often revealing unexpected connections with other cellular processes, such as antibody maturation or epigenetic demethylation. In addition, these cell lines have found an increasing use in genotoxicity testing, where they provide increased sensitivity and representativity to cell-based assay panels. In this review, we outline current knowledge about BER-deficient cell lines and their use.
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Affiliation(s)
- Daria V Kim
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russian Federation
| | - Alena V Makarova
- RAS Institute of Molecular Genetics, 2 Kurchatova Sq., Moscow 123182, Russian Federation
| | - Regina R Miftakhova
- Kazan Federal University, 18 Kremlevsakaya St., Kazan 420008, Russian Federation
| | - Dmitry O Zharkov
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russian Federation.,SB RAS Institute of Chemical Biology and Fu ndamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russian Federation
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28
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Qiu W, Gobinath AR, Wen Y, Austin J, Galea LAM. Folic acid, but not folate, regulates different stages of neurogenesis in the ventral hippocampus of adult female rats. J Neuroendocrinol 2019; 31:e12787. [PMID: 31478270 DOI: 10.1111/jne.12787] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 12/16/2022]
Abstract
Folate is an important regulator of hippocampal neurogenesis, and folic acid is needed prenatally to reduce the risk of neural tube defects. Both high levels of folic acid and low levels of folate can be harmful to health because low levels of folate have been linked to several diseases while high folic acid supplements can mask a vitamin B12 deficiency. Depressed patients exhibit folate deficiencies, lower levels of hippocampal neurogenesis, elevated levels of homocysteine and elevated levels of the stress hormone, cortisol, which may be inter-related. In the present study, we were interested in whether different doses of natural folate or synthetic folic acid diets can influence neurogenesis in the hippocampus, levels of plasma homocysteine and serum corticosterone in adult female rats. Adult female Sprague-Dawley rats underwent dietary interventions for 29 days. Animals were randomly assigned to six different dietary groups: folate deficient + succinylsulphathiazole (SST), low 5-methyltetrahydrofolate (5-MTHF), low 5-MTHF + (SST), high 5-MTHF + SST, low folic acid and high folic acid. SST was added to a subset of the 5-MTHF diets to eliminate folic acid production in the gut. Before and after dietary treatment, blood samples were collected for corticosterone and homocysteine analysis, and brain tissue was collected for neurogenesis analysis. High folic acid and low 5-MTHF without SST increased the number of immature neurones (doublecortin-expressing cells) within the ventral hippocampus compared to folate deficient controls. Low 5-MTHF without SST significantly increased the number of immature neurones compared to low and high 5-MTHF + SST, indicating that SST interfered with elevations in neurogenesis. Low folic acid and high 5-MTHF + SST reduced plasma homocysteine levels compared to controls, although there was no significant effect of diet on serum corticosterone levels. In addition, low folic acid and high 5-MTHF + SST reduced the number of mature new neurones in the ventral hippocampus (bromodeoxyuridine/NeuN-positive cells) compared to folate deficient controls. Overall, folic acid dose-dependently influenced neurogenesis with low levels decreasing but high levels increasing neurogenesis in the ventral hippocampus, suggesting that this region, which is important for regulating stress, is particularly sensitive to folic acid in diets. Furthermore, the addition of SST negated the effects of 5-MTHF to increase neurogenesis in the ventral hippocampus.
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Affiliation(s)
- Wansu Qiu
- Graduate Program in Neuroscience, University of British Columbia, Vancouver, BC, Canada
| | - Aarthi R Gobinath
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
| | - Yanhua Wen
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
| | - Jehannine Austin
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Liisa A M Galea
- Graduate Program in Neuroscience, University of British Columbia, Vancouver, BC, Canada
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
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29
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Kim JW, Hahn KR, Yoo DY, Jung HY, Hwang IK, Seong JK, Yoon YS. Methionine-Choline Deprivation Impairs Adult Hippocampal Neurogenesis in C57BL/6 Mice. J Med Food 2019; 22:344-354. [PMID: 30990755 DOI: 10.1089/jmf.2018.4247] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Methionine and choline, which are essential nutrients for mammalian animals, are important for cell composition, as metabolic factors, and for the synthesis of other biochemical compounds for cell metabolism. Methionine and choline, which are methyl group donors, play key roles in the homocysteine cycle and neuronal development and maintenance. In this study, we investigated the effects of methionine and choline deficiency on adult hippocampal neurogenesis and neural stem cell (NSC) lineage in the adult stage. For this study, we divided C57BL/6 mice into three groups as follows: normal chow (NC)-fed, methionine choline sufficient (MCS) diet-fed, and methionine choline deficient (MCD) diet-fed mice. The mice were fed the NC, MCS, and MCD diets for 4 weeks from the age of 8 weeks. MCD diet-fed mice showed significantly decreased proliferation and differentiation of NSCs when compared with the NC diet-fed or MCS diet-fed mice. In addition, the survival of newly generated neurons was critically impaired in the MCD diet-fed mice. We confirmed a decrease in the proliferation and differentiation of NSCs after 4 weeks of MCD diet administration, compared with that in NC- and MCS diet-fed mice. MCD diet critically impaired NSCs survival and survival of neurons during the 4 weeks. The number of phosphorylated cyclic AMP response element binding (pCREB) protein immunoreactive nuclei was decreased in the MCD diet-fed mice compared with that in the NC- or MCS diet-fed group. These results suggest that suitable levels of methionine and choline are essential for the maintenance of hippocampal neurogenesis in mice and affect NSC proliferation and differentiation through phosphorylation of CREB.
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Affiliation(s)
- Jong Whi Kim
- 1 Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Kyu Ri Hahn
- 1 Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Dae Young Yoo
- 2 Department of Anatomy, College of Medicine, Soonchunhyang University, Cheonan-Si, Korea
| | - Hyo Young Jung
- 1 Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - In Koo Hwang
- 1 Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea.,3 KMPC (Korea Mouse Phenotyping Center), Seoul National University, Seoul, South Korea
| | - Je Kyung Seong
- 1 Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea.,3 KMPC (Korea Mouse Phenotyping Center), Seoul National University, Seoul, South Korea
| | - Yeo Sung Yoon
- 1 Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea.,3 KMPC (Korea Mouse Phenotyping Center), Seoul National University, Seoul, South Korea
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Chon J, Field MS, Stover PJ. Deoxyuracil in DNA and disease: Genomic signal or managed situation? DNA Repair (Amst) 2019; 77:36-44. [PMID: 30875637 DOI: 10.1016/j.dnarep.2019.02.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 02/26/2019] [Indexed: 12/21/2022]
Abstract
Genomic instability is implicated in the etiology of several deleterious health outcomes including megaloblastic anemia, neural tube defects, and neurodegeneration. Uracil misincorporation and its repair are known to cause genomic instability by inducing DNA strand breaks leading to apoptosis, but there is emerging evidence that uracil incorporation may also result in broader modifications of gene expression, including: changes in transcriptional stalling, strand break-mediated transcriptional upregulation, and direct promoter inhibition. The factors that influence uracil levels in DNA are cytosine deamination, de novo thymidylate (dTMP) biosynthesis, salvage dTMP biosynthesis, dUTPase, and DNA repair. There is evidence that the nuclear localization of the enzymes in these pathways in mammalian cells may modify and/or control the levels of uracil accumulation into nuclear DNA. Uracil sequencing technologies demonstrate that uracil in DNA is not distributed stochastically across the genome, but instead shows patterns of enrichment. Nuclear localization of the enzymes that modify uracil in DNA may serve to change these patterns of enrichment in a tissue-specific manner, and thereby signal the genome in response to metabolic and/or nutritional state of the cell.
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Affiliation(s)
- James Chon
- Graduate Field of Biochemistry, Molecular and Cellular Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Martha S Field
- Division of Nutritional Sciences, Cornell University, 127 Savage Hall, Ithaca, NY, 14853, USA
| | - Patrick J Stover
- Graduate Field of Biochemistry, Molecular and Cellular Biology, Cornell University, Ithaca, NY, 14853, USA; Division of Nutritional Sciences, Cornell University, 127 Savage Hall, Ithaca, NY, 14853, USA.
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31
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Soltys DT, Pereira CP, Rowies FT, Farfel JM, Grinberg LT, Suemoto CK, Leite RE, Rodriguez RD, Ericson NG, Bielas JH, Souza-Pinto NC. Lower mitochondrial DNA content but not increased mutagenesis associates with decreased base excision repair activity in brains of AD subjects. Neurobiol Aging 2019; 73:161-170. [DOI: 10.1016/j.neurobiolaging.2018.09.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 08/13/2018] [Accepted: 09/13/2018] [Indexed: 12/15/2022]
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The cytoskeleton in ‘couch potato-ism’: Insights from a murine model of impaired actin dynamics. Exp Neurol 2018; 306:34-44. [DOI: 10.1016/j.expneurol.2018.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 03/19/2018] [Accepted: 04/06/2018] [Indexed: 01/22/2023]
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Abstract
Systems composed of many components which interact with each other and lead to unpredictable global behaviour, are considered as complex systems. In a biological context, complex systems represent living systems composed of a large number of interacting elements. In order to study these systems, a precise mathematical modelling was typically used in this context. However, this modelling has limitations in the structural understanding and the behavioural study. In this sense, formal computational modelling is an approach that allows to model and to simulate dynamical properties of these particular systems. In this paper, we use Hybrid Functional Petri Net (HFPN), a Petri net extension dedicated to study and verify biopathways, to model and study the Methionine metabolic pathway. Methionine and its derivatives play significant roles in human bodies. We propose a set of simulations for the purpose of studying and analysing the Methionine pathway’s behaviour. Our simulation results have shown that several important abnormalities in this pathway are related to sever diseases such as Alzheimer’s disease, cardiovascular disease, cancers and others.
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34
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Begdache L, Kianmehr H, Sabounchi N, Chaar M, Marhaba J. Principal component analysis identifies differential gender-specific dietary patterns that may be linked to mental distress in human adults. Nutr Neurosci 2018; 23:295-308. [PMID: 30028276 DOI: 10.1080/1028415x.2018.1500198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Independent reports describe the structural differences between the human male and female brains and the differential gender-susceptibility to mood disorders. Nutrition is one of the modifiable risk factors that has been reported to impact brain chemistry and affect mental health. Objectives: To study dietary patterns in adult men and women in relation to mental distress. Another aim was to develop evidence-based prototypes using System Dynamic Modeling methodology to better describe our findings. Methods: An anonymous internet-based survey was sent through social media platforms to different social and professional networks. Multivariate analyses were used for data mining. Data were stratified by gender and further by tertiles to capture the latent variables within the patterns of interest. Results: Mental distress in men associated with a consumption of a Western-like diet. In women, mental wellbeing associated with a Mediterranean-like diet and lifestyle. No other patterns in both genders were linked to mental distress. Based on the generated prototypes, men are more likely to experience mental wellbeing until nutritional deficiencies arise. However, women are less likely to experience mental wellbeing until a balanced diet and a healthy lifestyle are followed. In men, dietary deficiencies may have a profound effect on the limbic system; whereas dietary sufficiency in women may potentiate the mesocortical regulation of the limbic system. Discussion and conclusion: Our results may explain the several reports in the literature that women are at a greater risk for mental distress when compared to men and emphasize the role of a nutrient-dense diet in mental wellbeing.
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Affiliation(s)
- Lina Begdache
- Department of Health and Wellness Studies, Binghamton University, Binghamton, NY, USA
| | - Hamed Kianmehr
- Thomas J. Watson School of Engineering and Applied Science, Binghamton University, Binghamton, NY, USA
| | - Nasim Sabounchi
- Thomas J. Watson School of Engineering and Applied Science, Binghamton University, Binghamton, NY, USA
| | - Maher Chaar
- Department of Biological Sciences, Binghamton University, Binghamton, NY, USA
| | - Jade Marhaba
- SUNY Upstate Medical University, Syracuse, NY, USA
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35
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Abbasi IHR, Abbasi F, Wang L, Abd El Hack ME, Swelum AA, Hao R, Yao J, Cao Y. Folate promotes S-adenosyl methionine reactions and the microbial methylation cycle and boosts ruminants production and reproduction. AMB Express 2018; 8:65. [PMID: 29687201 PMCID: PMC5913057 DOI: 10.1186/s13568-018-0592-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 04/13/2018] [Indexed: 12/14/2022] Open
Abstract
Folate has gained significant attention due to its vital role in biological methylation and epigenetic machinery. Folate, or vitamin (B9), is only produced through a de novo mechanism by plants and micro-organisms in the rumen of mature animals. Although limited research has been conducted on folate in ruminants, it has been noted that ruminal synthesis could not maintain folate levels in high yielding dairy animals. Folate has an essential role in one-carbon metabolism and is a strong antiproliferative agent. Folate increases DNA stability, being crucial for DNA synthesis and repair, the methylation cycle, and preventing oxidation of DNA by free radicals. Folate is also critical for cell division, metabolism of proteins, synthesis of purine and pyrimidine, and increasing the de novo delivery of methyl groups and S-adenosylmethionine. However, in ruminants, metabolism of B12 and B9 vitamins are closely connected and utilization of folate by cells is significantly affected by B12 vitamin concentration. Supplementation of folate through diet, particularly in early lactation, enhanced metabolic efficiency, lactational performance, and nutritional quality of milk. Impaired absorption, oxidative degradation, or deficient supply of folate in ruminants affects DNA stability, cell division, homocysteine remethylation to methionine, de novo synthesis of S-adenosylmethionine, and increases DNA hypomethylation, uracil misincorporation into DNA, chromosomal damage, abnormal cell growth, oxidative species, premature birth, low calf weight, placental tube defects, and decreases production and reproduction of ruminant animals. However, more studies are needed to overcome these problems and reduce enormous dietary supplement waste and impaired absorption of folate in ruminants. This review was aimed to highlight the vital role of folic acid in ruminants performance.
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Selected B vitamins and their possible link to the aetiology of age-related sarcopenia: relevance of UK dietary recommendations. Nutr Res Rev 2018; 31:204-224. [DOI: 10.1017/s0954422418000045] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AbstractThe possible roles of selected B vitamins in the development and progression of sarcopenia are reviewed. Age-related declines in muscle mass and function are associated with huge and increasing costs to healthcare providers. Falls and loss of mobility and independence due to declining muscle mass/function are associated with poor clinical outcomes and their prevention and management are attractive research targets. Nutritional status appears a key modifiable and affordable intervention. There is emerging evidence of sarcopenia being the result not only of diminished anabolic activity but also of declining neurological integrity in older age, which is emerging as an important aspect of the development of age-related decline in muscle mass/function. In this connection, several B vitamins can be viewed as not only cofactors in muscle synthetic processes, but also as neurotrophic agents with involvements in both bioenergetic and trophic pathways. The B vitamins thus selected are examined with respect to their relevance to multiple aspects of neuromuscular function and evidence is considered that requirements, intakes or absorption may be altered in the elderly. In addition, the evidence base for recommended intakes (UK recommended daily allowance) is examined with particular reference to original datasets and their relevance to older individuals. It is possible that inconsistencies in the literature with respect to the nutritional management of sarcopenia may, in part at least, be the result of compromised micronutrient status in some study participants. It is suggested that in order, for example, for intervention with amino acids to be successful, underlying micronutrient deficiencies must first be addressed/eliminated.
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Balashova OA, Visina O, Borodinsky LN. Folate action in nervous system development and disease. Dev Neurobiol 2018; 78:391-402. [PMID: 29380544 DOI: 10.1002/dneu.22579] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 01/24/2018] [Accepted: 01/24/2018] [Indexed: 01/04/2023]
Abstract
The vitamin folic acid has been recognized as a crucial environmental factor for nervous system development. From the early fetal stages of the formation of the presumptive spinal cord and brain to the maturation and maintenance of the nervous system during infancy and childhood, folate levels and its supplementation have been considered influential in the clinical outcome of infants and children affected by neurological diseases. Despite the vast epidemiological information recorded on folate function and neural tube defects, neural development and neurodegenerative diseases, the mechanisms of folate action in the developing neural tissue have remained elusive. Here we compiled studies that argue for a unique role for folate in nervous system development and function and its consequences to neural disease and repair. © 2018 Wiley Periodicals, Inc. Develop Neurobiol 78: 391-402, 2018.
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Affiliation(s)
- Olga A Balashova
- Department of Physiology & Membrane Biology and Institute for Pediatric Regenerative Medicine, Shriners Hospital for Children, University of California Davis School of Medicine, Sacramento, California
| | - Olesya Visina
- Department of Physiology & Membrane Biology and Institute for Pediatric Regenerative Medicine, Shriners Hospital for Children, University of California Davis School of Medicine, Sacramento, California
| | - Laura N Borodinsky
- Department of Physiology & Membrane Biology and Institute for Pediatric Regenerative Medicine, Shriners Hospital for Children, University of California Davis School of Medicine, Sacramento, California
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38
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Shcherbitskaya AD, Milyutina YP, Zaloznyaya IV, Arutjunyan AV, Nalivaeva NN, Zhuravin IA. The effects of prenatal hyperhomocysteinemia on the formation of memory and the contents of biogenic amines in the rat hippocampus. NEUROCHEM J+ 2017. [DOI: 10.1134/s1819712417040080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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39
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Poulose SM, Miller MG, Scott T, Shukitt-Hale B. Nutritional Factors Affecting Adult Neurogenesis and Cognitive Function. Adv Nutr 2017; 8:804-811. [PMID: 29141966 PMCID: PMC5683005 DOI: 10.3945/an.117.016261] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Adult neurogenesis, a complex process by which stem cells in the hippocampal brain region differentiate and proliferate into new neurons and other resident brain cells, is known to be affected by many intrinsic and extrinsic factors, including diet. Neurogenesis plays a critical role in neural plasticity, brain homeostasis, and maintenance in the central nervous system and is a crucial factor in preserving the cognitive function and repair of damaged brain cells affected by aging and brain disorders. Intrinsic factors such as aging, neuroinflammation, oxidative stress, and brain injury, as well as lifestyle factors such as high-fat and high-sugar diets and alcohol and opioid addiction, negatively affect adult neurogenesis. Conversely, many dietary components such as curcumin, resveratrol, blueberry polyphenols, sulforaphane, salvionic acid, polyunsaturated fatty acids (PUFAs), and diets enriched with polyphenols and PUFAs, as well as caloric restriction, physical exercise, and learning, have been shown to induce neurogenesis in adult brains. Although many of the underlying mechanisms by which nutrients and dietary factors affect adult neurogenesis have yet to be determined, nutritional approaches provide promising prospects to stimulate adult neurogenesis and combat neurodegenerative diseases and cognitive decline. In this review, we summarize the evidence supporting the role of nutritional factors in modifying adult neurogenesis and their potential to preserve cognitive function during aging.
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Affiliation(s)
- Shibu M Poulose
- USDA-ARS Human Nutrition Research Center on Aging at Tufts University, Neuroscience and Aging Laboratory, Boston, MA
| | - Marshall G Miller
- USDA-ARS Human Nutrition Research Center on Aging at Tufts University, Neuroscience and Aging Laboratory, Boston, MA
| | - Tammy Scott
- USDA-ARS Human Nutrition Research Center on Aging at Tufts University, Neuroscience and Aging Laboratory, Boston, MA
| | - Barbara Shukitt-Hale
- USDA-ARS Human Nutrition Research Center on Aging at Tufts University, Neuroscience and Aging Laboratory, Boston, MA
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40
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Huehnchen P, Boehmerle W, Springer A, Freyer D, Endres M. A novel preventive therapy for paclitaxel-induced cognitive deficits: preclinical evidence from C57BL/6 mice. Transl Psychiatry 2017; 7:e1185. [PMID: 28763058 PMCID: PMC5611721 DOI: 10.1038/tp.2017.149] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 05/18/2017] [Accepted: 06/07/2017] [Indexed: 12/11/2022] Open
Abstract
Chemotherapy-induced central nervous system (CNS) neurotoxicity presents an unmet medical need. Patients often report a cognitive decline in temporal correlation to chemotherapy, particularly for hippocampus-dependent verbal and visuo-spatial abilities. We treated adult C57Bl/6 mice with 12 × 20 mg kg-1 paclitaxel (PTX), mimicking clinical conditions of dose-dense chemotherapy, followed by a pulse of bromodesoxyuridine (BrdU) to label dividing cells. In this model, mice developed visuo-spatial memory impairments, and we measured peak PTX concentrations in the hippocampus of 230 nm l-1, which was sevenfold higher compared with the neocortex. Histologic analysis revealed a reduced hippocampal cell proliferation. In vitro, we observed severe toxicity in slowly proliferating neural stem cells (NSC) as well as human neuronal progenitor cells after 2 h exposure to low nanomolar concentrations of PTX. In comparison, mature post-mitotic hippocampal neurons and cell lines of malignant cells were less vulnerable. In PTX-treated NSC, we observed an increase of intracellular calcium levels, as well as an increased activity of calpain- and caspase 3/7, suggesting a calcium-dependent mechanism. This cell death pathway could be specifically inhibited with lithium, but not glycogen synthase kinase 3 inhibitors, which protected NSC in vitro. In vivo, preemptive treatment of mice with lithium prevented PTX-induced memory deficits and abnormal adult hippocampal neurogenesis. In summary, we identified a molecular pathomechanism, which invokes PTX-induced cytotoxicity in NSC independent of cell cycle status. This pathway could be pharmacologically inhibited with lithium without impairing paclitaxel's tubulin-dependent cytostatic mode of action, enabling a potential translational clinical approach.
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Affiliation(s)
- P Huehnchen
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Klinik und Hochschulambulanz für Neurologie, Berlin, Germany,Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany,Berlin Institute of Health (BIH), Berlin, Germany
| | - W Boehmerle
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Klinik und Hochschulambulanz für Neurologie, Berlin, Germany,Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany,Berlin Institute of Health (BIH), Berlin, Germany,Klinik und Hochschulambulanz für Neurologie, Charité Universitätsmedizin Berlin, Chariteplatz 1, Berlin 10117, Germany. E-mail:
| | - A Springer
- Großgerätezentrum BioSupraMol, Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - D Freyer
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Klinik und Hochschulambulanz für Neurologie, Berlin, Germany,Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Stroke Research Berlin, Berlin, Germany
| | - M Endres
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Klinik und Hochschulambulanz für Neurologie, Berlin, Germany,Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany,Berlin Institute of Health (BIH), Berlin, Germany,Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Stroke Research Berlin, Berlin, Germany,German Centre for Neurodegenerative Diseases (DZNE), Berlin, Germany,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
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41
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B-vitamin and choline supplementation increases neuroplasticity and recovery after stroke. Neurobiol Dis 2017; 103:89-100. [DOI: 10.1016/j.nbd.2017.04.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 04/03/2017] [Accepted: 04/05/2017] [Indexed: 12/22/2022] Open
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42
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Helm S, Blayney M, Whited T, Noroozi M, Lin S, Kern S, Green D, Salehi A. Deleterious Effects of Chronic Folate Deficiency in the Ts65Dn Mouse Model of Down Syndrome. Front Cell Neurosci 2017. [PMID: 28649192 PMCID: PMC5465284 DOI: 10.3389/fncel.2017.00161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Folate is an important B vitamin naturally found in the human diet and plays a critical role in methylation of nucleic acids. Indeed, abnormalities in this major epigenetic mechanism play a pivotal role in the pathogenesis of cognitive deficit and intellectual disability in humans. The most common cause of cognitive dysfunction in children is Down syndrome (DS). Since folate deficiency is very common among the pediatric population, we questioned whether chronic folate deficiency (CFD) exacerbates cognitive dysfunction in a mouse model of DS. To test this, adult Ts65Dn mice and their disomic littermates were chronically fed a diet free of folic acid while preventing endogenous production of folate in the digestive tract for a period of 8 weeks. Our results show that the Ts65Dn mouse model of DS was significantly more vulnerable to CFD in terms of plasma homocysteine and N5-methyltetrahydrofolate (5-MTHF) levels. Importantly, these changes were linked to degenerative alterations in hippocampal dendritic morphology and impaired nest building behavior in Ts65Dn mice. Based on our results, a rigorous examination of folate intake and its metabolism in individuals with DS is warranted.
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Affiliation(s)
- Susan Helm
- Natural Science Division, Pepperdine UniversityMalibu, CA, United States
| | - Morgan Blayney
- Natural Science Division, Pepperdine UniversityMalibu, CA, United States
| | - Taylor Whited
- Natural Science Division, Pepperdine UniversityMalibu, CA, United States
| | - Mahjabin Noroozi
- VA Palo Alto Health Care System (VAPAHCS)Palo Alto, CA, United States.,Department of Psychiatry and Behavioral Sciences, Stanford University School of MedicinePalo Alto, CA, United States
| | - Sen Lin
- Natural Science Division, Pepperdine UniversityMalibu, CA, United States
| | - Semira Kern
- Natural Science Division, Pepperdine UniversityMalibu, CA, United States
| | - David Green
- Natural Science Division, Pepperdine UniversityMalibu, CA, United States
| | - Ahmad Salehi
- VA Palo Alto Health Care System (VAPAHCS)Palo Alto, CA, United States.,Department of Psychiatry and Behavioral Sciences, Stanford University School of MedicinePalo Alto, CA, United States
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43
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Burdennyy AM, Loginov VI, Zavarykina TM, Braga EA, Kubatiev AA. The role of molecular genetic alterations in genes involved in folate and homocysteine metabolism in multifactorial diseases pathogenesis. RUSS J GENET+ 2017. [DOI: 10.1134/s1022795417040044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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44
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Weng Q, Wang J, Wang J, Tan B, Wang J, Wang H, Zheng T, Lu QR, Yang B, He Q. Folate Metabolism Regulates Oligodendrocyte Survival and Differentiation by Modulating AMPKα Activity. Sci Rep 2017; 7:1705. [PMID: 28496133 PMCID: PMC5431811 DOI: 10.1038/s41598-017-01732-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 04/03/2017] [Indexed: 01/13/2023] Open
Abstract
Folate, an essential micronutrient, is a critical cofactor in one-carbon metabolism for many cellular pathways including DNA synthesis, metabolism and maintenance. Folate deficiency has been associated with an increased risk of neurological disease, cancer and cognitive dysfunction. Dihydrofolate reductase (DHFR) is a key enzyme to regulate folate metabolism, however folate/DHFR activity in oligodendrocyte development has not been fully understood. Here we show that folate enhances oligodendrocyte maturation both in vitro and in vivo, which is accompanied with upregulation of oligodendrocyte-specific DHFR expression. On the other hand, pharmacological inhibition of DHFR by methotrexate (MTX) causes severe defects in oligodendrocyte survival and differentiation, which could be reversed by folate intake. We further demonstrate that folate activates a metabolic regulator AMPKα to promote oligodendrocyte survival and differentiation. Moreover, activation of AMPKα partially rescues oligodendrocyte defects caused by DHFR-inhibition both in vitro and in vivo. Taken together, these findings identify a previously uncharacterized role of folate/DHFR/AMPKα axis in regulating oligodendrocyte survival and myelination during CNS development.
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Affiliation(s)
- Qinjie Weng
- Institute of Pharmacology & Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.,Center for drug safety Evaluation and Research, Zhejiang University, Hangzhou, China
| | - Jiajia Wang
- Institute of Pharmacology & Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jiaying Wang
- Institute of Pharmacology & Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Biqin Tan
- Institute of Pharmacology & Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jing Wang
- Institute of Pharmacology & Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Haibo Wang
- Department of Pediatrics, Brain Tumor Center, Cancer and Blood Disease Institute, Cincinnati Children's Hospital Medical Center, OH, USA
| | - Tao Zheng
- School of Preclinical and Forensic Medicine, West China Second Hospital, Sichuan University, Chengdu, China
| | - Q Richard Lu
- Department of Pediatrics, Brain Tumor Center, Cancer and Blood Disease Institute, Cincinnati Children's Hospital Medical Center, OH, USA
| | - Bo Yang
- Institute of Pharmacology & Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.
| | - Qiaojun He
- Institute of Pharmacology & Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China. .,Center for drug safety Evaluation and Research, Zhejiang University, Hangzhou, China.
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45
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Desai A, Sequeira JM, Quadros EV. The metabolic basis for developmental disorders due to defective folate transport. Biochimie 2016; 126:31-42. [DOI: 10.1016/j.biochi.2016.02.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 02/22/2016] [Indexed: 02/06/2023]
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46
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Xu J, Begley P, Church SJ, Patassini S, Hollywood KA, Jüllig M, Curtis MA, Waldvogel HJ, Faull RLM, Unwin RD, Cooper GJS. Graded perturbations of metabolism in multiple regions of human brain in Alzheimer's disease: Snapshot of a pervasive metabolic disorder. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1862:1084-92. [PMID: 26957286 PMCID: PMC4856736 DOI: 10.1016/j.bbadis.2016.03.001] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 02/10/2016] [Accepted: 03/04/2016] [Indexed: 12/28/2022]
Abstract
Alzheimer's disease (AD) is an age-related neurodegenerative disorder that displays pathological characteristics including senile plaques and neurofibrillary tangles. Metabolic defects are also present in AD-brain: for example, signs of deficient cerebral glucose uptake may occur decades before onset of cognitive dysfunction and tissue damage. There have been few systematic studies of the metabolite content of AD human brain, possibly due to scarcity of high-quality brain tissue and/or lack of reliable experimental methodologies. Here we sought to: 1) elucidate the molecular basis of metabolic defects in human AD-brain; and 2) identify endogenous metabolites that might guide new approaches for therapeutic intervention, diagnosis or monitoring of AD. Brains were obtained from nine cases with confirmed clinical/neuropathological AD and nine controls matched for age, sex and post-mortem delay. Metabolite levels were measured in post-mortem tissue from seven regions: three that undergo severe neuronal damage (hippocampus, entorhinal cortex and middle-temporal gyrus); three less severely affected (cingulate gyrus, sensory cortex and motor cortex); and one (cerebellum) that is relatively spared. We report a total of 55 metabolites that were altered in at least one AD-brain region, with different regions showing alterations in between 16 and 33 metabolites. Overall, we detected prominent global alterations in metabolites from several pathways involved in glucose clearance/utilization, the urea cycle, and amino-acid metabolism. The finding that potentially toxigenic molecular perturbations are widespread throughout all brain regions including the cerebellum is consistent with a global brain disease process rather than a localized effect of AD on regional brain metabolism.
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Affiliation(s)
- Jingshu Xu
- School of Biological Sciences, Faculty of Science and Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand; Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Paul Begley
- Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK; Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Stephanie J Church
- Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK; Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Stefano Patassini
- School of Biological Sciences, Faculty of Science and Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand; Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Katherine A Hollywood
- Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK; Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Mia Jüllig
- School of Biological Sciences, Faculty of Science and Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand; Auckland Science Analytical Services, Faculty of Science, University of Auckland, Auckland, New Zealand
| | - Maurice A Curtis
- Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Henry J Waldvogel
- Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Richard L M Faull
- Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Richard D Unwin
- Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK; Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Garth J S Cooper
- School of Biological Sciences, Faculty of Science and Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand; Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK; Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK; Department of Pharmacology, Medical Sciences Division, University of Oxford, Oxford, UK.
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Wefel JS, Noll KR, Scheurer ME. Neurocognitive functioning and genetic variation in patients with primary brain tumours. Lancet Oncol 2016; 17:e97-e108. [PMID: 26972863 PMCID: PMC5215729 DOI: 10.1016/s1470-2045(15)00380-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 09/10/2015] [Accepted: 09/28/2015] [Indexed: 01/09/2023]
Abstract
Impairment of neurocognitive functioning is a common result of cerebral neoplasms and treatment, although there is substantial heterogeneity in the pattern and severity of neurocognitive dysfunction across individuals and tumour types. The effects of many clinical and patient characteristics on neurocognitive functioning have been documented, but little research has been devoted to understanding the effect of genetic variation on neurocognitive outcomes in patients with brain tumours. This Review highlights preliminary evidence that suggests an association between various genes and risk of adverse neurocognitive outcomes in patients with brain tumours. Studies include genes specific to neuronal function, and those associated with more systemic cellular regulation. Related scientific literature in other disease populations is briefly discussed to indicate additional candidate genes. We consider methodological issues central to the study of neurocognitive functioning and genetic associations for patients with brain tumours, and emphasise the need for future research integrating novel investigative techniques.
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Affiliation(s)
- Jeffrey S Wefel
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
| | - Kyle R Noll
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Michael E Scheurer
- Department of Pediatrics, Section of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA
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48
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The Response to Oxidative DNA Damage in Neurons: Mechanisms and Disease. Neural Plast 2016; 2016:3619274. [PMID: 26942017 PMCID: PMC4752990 DOI: 10.1155/2016/3619274] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 12/24/2015] [Indexed: 11/26/2022] Open
Abstract
There is a growing body of evidence indicating that the mechanisms that control genome stability are of key importance in the development and function of the nervous system. The major threat for neurons is oxidative DNA damage, which is repaired by the base excision repair (BER) pathway. Functional mutations of enzymes that are involved in the processing of single-strand breaks (SSB) that are generated during BER have been causally associated with syndromes that present important neurological alterations and cognitive decline. In this review, the plasticity of BER during neurogenesis and the importance of an efficient BER for correct brain function will be specifically addressed paying particular attention to the brain region and neuron-selectivity in SSB repair-associated neurological syndromes and age-related neurodegenerative diseases.
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Torres A, Newton SA, Crompton B, Borzutzky A, Neufeld EJ, Notarangelo L, Berry GT. CSF 5-Methyltetrahydrofolate Serial Monitoring to Guide Treatment of Congenital Folate Malabsorption Due to Proton-Coupled Folate Transporter (PCFT) Deficiency. JIMD Rep 2015; 24:91-6. [PMID: 26006721 PMCID: PMC4582027 DOI: 10.1007/8904_2015_445] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/11/2015] [Accepted: 04/16/2015] [Indexed: 01/19/2023] Open
Abstract
Hereditary folate malabsorption is characterized by folate deficiency with impaired folate transport into the central nervous system (CNS). This disease is characterized by megaloblastic anemia of early appearance, combined immunodeficiency, seizures, and cognitive impairment. The anemia and immunologic disease are responsive but neurological signs are refractory to folic-acid treatment. We report a 7-year-old girl who has congenital folate deficiency and SLC46A1 gene mutation who is unable to transport folate from her gut to the circulatory system and consequently from the blood to the cerebrospinal fluid (CSF). As a result she developed undetectable 5-methyltetrahydrofolate levels in her plasma and CSF and became immunocompromised and quite ill. Intramuscular treatment with 5-formyltetrahydrofolate (folinic acid) was therapeutic at her presentation and has been successful preventing other signs and symptoms of hereditary folate malabsorption even at relatively low CSF levels. Although difficult, early detection and diagnosis of cerebral folate deficiency are important because folinic acid at a pharmacologic dose may normalize outcome in PCFT gene defects, as well as bypass autoantibody-blocked folate receptors and enter the cerebrospinal fluid by way of the reduced folate carrier. This route elevates the 5-methyltetrahydrofolate level within the central nervous system and can prevent the neuropsychiatric disorder. CSF levels of 5-methyltetrahydrofolate between 18 and 46 nmol/L may be sufficient to eradicate CNS disease.
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Affiliation(s)
- A Torres
- Department of Pediatrics, Division of Pediatric Neurology, Boston Medical Center, Boston University Medical School, Boston, MA, USA
| | - S A Newton
- Department of Neurology, Divisions of Hematology and Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - B Crompton
- Department of Neurology, Divisions of Hematology and Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - A Borzutzky
- Department of Neurology, Divisions of Hematology and Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - E J Neufeld
- Department of Neurology, Divisions of Hematology and Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - L Notarangelo
- Department of Neurology, Divisions of Hematology and Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - G T Berry
- Department of Neurology, Divisions of Hematology and Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
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50
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Elevated levels of plasma homocysteine, deficiencies in dietary folic acid and uracil–DNA glycosylase impair learning in a mouse model of vascular cognitive impairment. Behav Brain Res 2015; 283:215-26. [DOI: 10.1016/j.bbr.2015.01.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 01/20/2015] [Accepted: 01/22/2015] [Indexed: 11/30/2022]
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