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Abdulla ZI, Mineur YS, Crouse RB, Etherington IM, Yousuf H, Na JJ, Picciotto MR. Medial prefrontal cortex acetylcholine signaling mediates the ability to learn an active avoidance response following learned helplessness training. Neuropsychopharmacology 2024:10.1038/s41386-024-02003-0. [PMID: 39362985 DOI: 10.1038/s41386-024-02003-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Accepted: 09/25/2024] [Indexed: 10/05/2024]
Abstract
Increased brain levels of acetylcholine (ACh) have been observed in patients with depression, and increasing ACh levels pharmacologically can precipitate stress-related behaviors in humans and animals. Conversely, optimal ACh levels are required for cognition and memory. We hypothesize that excessive ACh signaling results in strengthening of negative encoding in which memory formation is aberrantly strengthened for stressful events. The medial prefrontal cortex (mPFC) is critical for both top-down control of stress-related circuits, and for encoding of sensory experiences. We therefore evaluated the role of ACh signaling in the mPFC in a learned helplessness task in which mice were exposed to repeated inescapable stressors followed by an active avoidance task. Using fiber photometry with a genetically-encoded ACh sensor, we found that ACh levels in the mPFC during exposure to inescapable stressors were positively correlated with later escape deficits in an active avoidance test in males, but not females. Consistent with these measurements, we found that both pharmacologically- and chemogenetically-induced increases in mPFC ACh levels resulted in escape deficits in both male and female mice, whereas chemogenetic inhibition of ACh neurons projecting to the mPFC improved escape performance in males, but impaired escape performance in females. These results highlight the adaptive role of ACh release in stress response, but also support the idea that sustained elevation of ACh contributes to maladaptive behaviors. Furthermore, mPFC ACh signaling may contribute to stress-based learning differentially in males and females.
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Affiliation(s)
- Zuhair I Abdulla
- Department of Psychiatry, Yale University, New Haven, CT, 06508, USA
| | - Yann S Mineur
- Department of Psychiatry, Yale University, New Haven, CT, 06508, USA
| | - Richard B Crouse
- Yale University Interdepartmental Neuroscience Program, New Haven, CT, USA
| | - Ian M Etherington
- Yale University Interdepartmental Neuroscience Program, New Haven, CT, USA
| | - Hanna Yousuf
- Department of Psychiatry, Yale University, New Haven, CT, 06508, USA
| | | | - Marina R Picciotto
- Department of Psychiatry, Yale University, New Haven, CT, 06508, USA.
- Yale University Interdepartmental Neuroscience Program, New Haven, CT, USA.
- Kavli Institute for Neuroscience at Yale, New Haven, CT, USA.
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252
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Fonseca-Gomes J, Costa-Coelho T, Ferreira-Manso M, Inteiro-Oliveira S, Vaz SH, Alemãn-Serrano N, Atalaia-Barbacena H, Ribeiro-Rodrigues L, Ramalho RM, Pinto R, Vicente Miranda H, Tanqueiro SR, de Almeida-Borlido C, Ramalho MJ, Miranda-Lourenço C, Belo RF, Ferreira CB, Neves V, Rombo DM, Viais R, Martins IC, Jerónimo-Santos A, Caetano A, Manso N, Mäkinen P, Marttinen M, Takalo M, Bremang M, Pike I, Haapasalo A, Loureiro JA, Pereira MC, Santos NC, Outeiro TF, Castanho MARB, Fernandes A, Hiltunen M, Duarte CB, Castrén E, de Mendonça A, Sebastião AM, Rodrigues TM, Diógenes MJ. A small TAT-TrkB peptide prevents BDNF receptor cleavage and restores synaptic physiology in Alzheimer's disease. Mol Ther 2024; 32:3372-3401. [PMID: 39205389 DOI: 10.1016/j.ymthe.2024.08.022] [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: 01/20/2024] [Revised: 08/01/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
In Alzheimer's disease (AD), amyloid β (Aβ)-triggered cleavage of TrkB-FL impairs brain-derived neurotrophic factor (BDNF) signaling, thereby compromising neuronal survival, differentiation, and synaptic transmission and plasticity. Using cerebrospinal fluid and postmortem human brain samples, we show that TrkB-FL cleavage occurs from the early stages of the disease and increases as a function of pathology severity. To explore the therapeutic potential of this disease mechanism, we designed small TAT-fused peptides and screened their ability to prevent TrkB-FL receptor cleavage. Among these, a TAT-TrkB peptide with a lysine-lysine linker prevented TrkB-FL cleavage both in vitro and in vivo and rescued synaptic deficits induced by oligomeric Aβ in hippocampal slices. Furthermore, this TAT-TrkB peptide improved the cognitive performance, ameliorated synaptic plasticity deficits and prevented Tau pathology progression in vivo in the 5XFAD mouse model of AD. No evidence of liver or kidney toxicity was found. We provide proof-of-concept evidence for the efficacy and safety of this therapeutic strategy and anticipate that this TAT-TrkB peptide has the potential to be a disease-modifying drug that can prevent and/or reverse cognitive deficits in patients with AD.
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Affiliation(s)
- João Fonseca-Gomes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Tiago Costa-Coelho
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Mafalda Ferreira-Manso
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal; Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Sara Inteiro-Oliveira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Sandra H Vaz
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Nuno Alemãn-Serrano
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Henrique Atalaia-Barbacena
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Leonor Ribeiro-Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Rita M Ramalho
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Rui Pinto
- Laboratory of Systems Integration Pharmacology, Clinical, and Regulatory Science, Research Institute for Medicines (iMED.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal; Dr. Joaquim Chaves Laboratório de Análises Clínicas, 2790-224 Carnaxide, Portugal
| | - Hugo Vicente Miranda
- iNOVA4Health, NOVA Medical School, NMS, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
| | - Sara R Tanqueiro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Carolina de Almeida-Borlido
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Maria João Ramalho
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology, and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Catarina Miranda-Lourenço
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Rita F Belo
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Catarina B Ferreira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Vera Neves
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Diogo M Rombo
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Ricardo Viais
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Ivo C Martins
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - André Jerónimo-Santos
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - António Caetano
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Nuno Manso
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Petra Mäkinen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Mikael Marttinen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland; Structural and Computational Biology, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Mari Takalo
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Michael Bremang
- Proteome Sciences, Coveham House, Downside Bridge Road, KT11 3EP Cobham, UK
| | - Ian Pike
- Proteome Sciences, Coveham House, Downside Bridge Road, KT11 3EP Cobham, UK
| | - Annakaisa Haapasalo
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70211 Kuopio, Finland
| | - Joana A Loureiro
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology, and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Maria Carmo Pereira
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology, and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Nuno C Santos
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Tiago F Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, 37073 Göttingen, Germany; Max Planck Institute for Experimental Medicine, 37075 Göttingen, Germany; Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; German Center for Neurodegenerative Diseases (DZNE), 37075 Göttingen, Germany
| | - Miguel A R B Castanho
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Adelaide Fernandes
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal; Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Mikko Hiltunen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Carlos B Duarte
- CNC - Center for Neuroscience and Cell Biology and Department of Life Sciences, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Eero Castrén
- Neuroscience Center, University of Helsinki, 00014 Helsinki, Finland
| | - Alexandre de Mendonça
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Tiago M Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal.
| | - Maria José Diógenes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal.
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253
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Kim L, Nan G, Kim HY, Cha M, Lee BH. Modulation of chemotherapy-induced peripheral neuropathy by JZL195 through glia and the endocannabinoid system. Biomed Pharmacother 2024; 180:117515. [PMID: 39362070 DOI: 10.1016/j.biopha.2024.117515] [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: 06/26/2024] [Revised: 09/12/2024] [Accepted: 09/25/2024] [Indexed: 10/05/2024] Open
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) used to treat cancer, is a significant side effect with a complex pathophysiology, and its mechanisms remain unclear. Recent research highlights neuroinflammation, which is modulated by the endocannabinoid system (ECS) and associated with glial activation, and the role of toll-like receptor 4 (TLR4) in CIPN. This study aimed to investigate the effects of JZL195, an inhibitor of fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MAGL), and explore the connection between cannabinoid receptors and TLR4 in glial cells. A CIPN animal model was developed using cisplatin-injected male C57BL/6 mice. Mechanical and cold allodynia were assessed through von Frey and acetone tests. Western blot analysis was used to examine the expression of catabolic enzymes, cannabinoid receptors, glial cells, and neuroinflammatory factors in the dorsal root ganglia (DRGs) and spinal cord. Immunohistochemistry was used to investigate the colocalization of cannabinoid receptors and TLR4 in glial cells. JZL195 alleviated pain by inhibiting FAAH/MAGL, modulating the ECS and neuroinflammatory factors, and suppressing glial cell activity. Additionally, cannabinoid receptors and TLR4 colocalized with astrocytes and microglia in the spinal cord. This study highlights the therapeutic potential of JZL195 in modulating the ECS and suggests a correlation between cannabinoid receptors and TLR4 in spinal glial cells, providing insight into alleviating pain and neuroinflammation in CIPN.
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Affiliation(s)
- Leejeong Kim
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Department of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Guanghai Nan
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Department of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Hee Young Kim
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Department of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Myeounghoon Cha
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Bae Hwan Lee
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Department of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
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254
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Yang Z, Klugah-Brown B, Ding G, Zhou W, Biswal BB. Brain structural differences in cocaine use disorder: Insights from multivariate and neurotransmitter analyses. Prog Neuropsychopharmacol Biol Psychiatry 2024:111159. [PMID: 39366518 DOI: 10.1016/j.pnpbp.2024.111159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 09/28/2024] [Accepted: 10/01/2024] [Indexed: 10/06/2024]
Abstract
Cocaine use disorder (CUD) is a chronic and relapsing neuropsychiatric disorder characterized by structural and functional brain lesions, posing a significant public health challenge. While the disruptive effects of cocaine on neurotransmitter systems (receptors/transporters) have been well established, the patterns of brain structural abnormalities in CUD and its interaction with other factors remain an ongoing topic of investigation. We employed source-based morphometry (SBM), a multivariate approach on 50 CUD participants and 50 matched healthy controls from the public SUDMEX CONN dataset. This method allowed us to identify co-varying patterns of brain tissue volume differences, and further explore the effect of average cocaine dosage through moderation analysis. Spatial correlation analysis was also performed to examine micro-macro structural consistency between tissue volume variations and chemoarchitectural distribution of dopamine and serotonin. Our SBM analysis findings were consistent with reward-related neuroadaptations in the striato-thalamo-cortical and limbic pathways and also exhibited co-localization with the distribution of dopamine and serotonin systems. The moderation analysis suggested that the average dosage positively strengthens cocaine consumption years' effect on brain structures. By integrating our findings of gray and white matter volume differences and corresponding neurotransmitter profiles, this comprehensive view not only strengthens our understanding of the brain's structural abnormalities in CUD, but also reveals potential mechanisms underlying its development and progression.
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Affiliation(s)
- Zhenzhen Yang
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, No.2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu, Sichuan 611731, China
| | - Benjamin Klugah-Brown
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, No.2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu, Sichuan 611731, China.
| | - Guobin Ding
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, No.2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu, Sichuan 611731, China
| | - Wenchao Zhou
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, No.2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu, Sichuan 611731, China
| | - Bharat B Biswal
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, No.2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu, Sichuan 611731, China; Department of Biomedical Engineering, New Jersey Institute of Technology, 619 Fenster Hall, Newark, NJ 07102, USA.
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255
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Abassi E, Bognár A, de Gelder B, Giese M, Isik L, Lappe A, Mukovskiy A, Solanas MP, Taubert J, Vogels R. Neural Encoding of Bodies for Primate Social Perception. J Neurosci 2024; 44:e1221242024. [PMID: 39358024 DOI: 10.1523/jneurosci.1221-24.2024] [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: 06/28/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 10/04/2024] Open
Abstract
Primates, as social beings, have evolved complex brain mechanisms to navigate intricate social environments. This review explores the neural bases of body perception in both human and nonhuman primates, emphasizing the processing of social signals conveyed by body postures, movements, and interactions. Early studies identified selective neural responses to body stimuli in macaques, particularly within and ventral to the superior temporal sulcus (STS). These regions, known as body patches, represent visual features that are present in bodies but do not appear to be semantic body detectors. They provide information about posture and viewpoint of the body. Recent research using dynamic stimuli has expanded the understanding of the body-selective network, highlighting its complexity and the interplay between static and dynamic processing. In humans, body-selective areas such as the extrastriate body area (EBA) and fusiform body area (FBA) have been implicated in the perception of bodies and their interactions. Moreover, studies on social interactions reveal that regions in the human STS are also tuned to the perception of dyadic interactions, suggesting a specialized social lateral pathway. Computational work developed models of body recognition and social interaction, providing insights into the underlying neural mechanisms. Despite advances, significant gaps remain in understanding the neural mechanisms of body perception and social interaction. Overall, this review underscores the importance of integrating findings across species to comprehensively understand the neural foundations of body perception and the interaction between computational modeling and neural recording.
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Affiliation(s)
- Etienne Abassi
- The Neuro, Montreal Neurological Institute-Hospital, McGill University, Montréal, QC H3A 2B4, Canada
| | - Anna Bognár
- Department of Neuroscience, KU Leuven, Leuven 3000, Belgium
- Leuven Brain Institute, KU Leuven, Leuven 3000, Belgium
| | - Bea de Gelder
- Cognitive Neuroscience, Maastricht University, Maastricht 6229 EV, Netherlands
| | - Martin Giese
- Section Computational Sensomotorics, Hertie Institute for Clinical Brain Research & Centre for Integrative Neurocience, University Clinic Tuebingen, Tuebingen D-72076, Germany
| | - Leyla Isik
- Cognitive Science, Johns Hopkins University, Baltimore, Maryland 21218
| | - Alexander Lappe
- Section Computational Sensomotorics, Hertie Institute for Clinical Brain Research & Centre for Integrative Neurocience, University Clinic Tuebingen, Tuebingen D-72076, Germany
| | - Albert Mukovskiy
- Section Computational Sensomotorics, Hertie Institute for Clinical Brain Research & Centre for Integrative Neurocience, University Clinic Tuebingen, Tuebingen D-72076, Germany
| | - Marta Poyo Solanas
- Cognitive Neuroscience, Maastricht University, Maastricht 6229 EV, Netherlands
| | - Jessica Taubert
- The School of Psychology, University of Queensland, St Lucia, QLD 4072, Australia
| | - Rufin Vogels
- Department of Neuroscience, KU Leuven, Leuven 3000, Belgium
- Leuven Brain Institute, KU Leuven, Leuven 3000, Belgium
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256
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Gamba BFG, Pickler KDP, Lodetti G, Farias ACSD, Teixeira AG, Bernardo HT, Dondossola ER, Cararo JH, Luchiari AC, Rosemberg DB, Rico EP. Embryonic alcohol exposure alters cholinergic neurotransmission and memory in adult zebrafish. Behav Brain Res 2024; 474:115176. [PMID: 39098400 DOI: 10.1016/j.bbr.2024.115176] [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: 05/29/2024] [Revised: 07/19/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
Alcohol is the most consumed addictive substance worldwide that elicits multiple health problems. Consumption of alcoholic beverages by pregnant women is of great concern because pre-natal exposure can trigger fetal alcohol spectrum disorder (FASD). This disorder can significantly change the embryo's normal development, mainly by affecting the central nervous system (CNS), leading to neurobehavioral consequences that persist until adulthood. Among the harmful effects of FASD, the most reported consequences are cognitive and behavioral impairments. Alcohol interferes with multiple pathways in the brain, affecting memory by impairing neurotransmitter systems, increasing the rate of oxidative stress, or even activating neuroinflammation. Here, we aimed to evaluate the deleterious effects of alcohol on the cholinergic signaling and memory in a FASD zebrafish model, using inhibitory avoidance and novel object recognition tests. Four months after the embryonic exposure to ethanol, the behavioral tests indicated that ethanol impairs memory. While both ethanol concentrations tested (0.5 % and 1 %) disrupted memory acquisition in the inhibitory avoidance test, 1 % ethanol impaired memory in the object recognition test. Regarding the cholinergic system, 0.5 % ethanol decreased ChAT and AChE activities, but the relative gene expression did not change. Overall, we demonstrated that FASD model in zebrafish impairs memory in adult individuals, corroborating the memory impairment associated with embryonic exposure to ethanol. In addition, the cholinergic system was also affected, possibly showing a relation with the cognitive impairment observed.
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Affiliation(s)
- Bárbara Fiorentin Giordani Gamba
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil; Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil; Graduate Program in Psychobiology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil; Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Karolyne de Pieri Pickler
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Guilherme Lodetti
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Ana Caroline Salvador de Farias
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Amanda Gomes Teixeira
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Henrique Teza Bernardo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Eduardo Ronconi Dondossola
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - José Henrique Cararo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Ana Carolina Luchiari
- Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil; Graduate Program in Psychobiology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil
| | - Denis Broock Rosemberg
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Eduardo Pacheco Rico
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
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Bailey CS, Craig AJ, Jagielo-Miller JE, Leibold CT, Keller PS, Beckmann JS, Prendergast MA. Late-term moderate prenatal alcohol exposure impairs tactile, but not spatial, discrimination in a T-maze continuous performance task in juvenile rats. Behav Brain Res 2024; 474:115208. [PMID: 39154755 PMCID: PMC11418090 DOI: 10.1016/j.bbr.2024.115208] [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: 06/18/2024] [Revised: 08/01/2024] [Accepted: 08/13/2024] [Indexed: 08/20/2024]
Abstract
Existing maze apparatuses used in rodents often exclusively assess spatial discriminability as a means to evaluate learning impairments. Spatial learning in such paradigms is reportedly spared by moderate prenatal alcohol exposure in rats, suggesting that spatial reinforcement alone is insufficient to delineate executive dysfunction, which consistently manifests in humans prenatally-exposed to alcohol. To address this, we designed a single-session continuous performance task in the T-maze apparatus that requires rats to discriminate within and between simultaneously-presented spatial (left or right) and tactile (sandpaper or smooth) stimuli for food reinforcement across four sequential discrimination stages: simple discrimination, intradimensional reversal 1, extradimensional shift, and intradimensional reversal 2. This design incorporates elements of working memory, attention, and goal-seeking behavior which collectively contribute to the executive function construct. Here, we found that rats prenatally-exposed to alcohol performed worse in both the tactile intradimensional reversal and extradimensional shift; alternatively, rats prenatally-exposed to alcohol acquired the extradimensional shift faster when shifting from the tactile to spatial dimension. In line with previous work, moderate prenatal alcohol exposure spared specifically spatial discrimination in this paradigm. However, when tactile stimuli were mapped into the spatial dimension, rats prenatally-exposed to alcohol required more trials to discriminate between the dimensions. We demonstrate that tactile stimuli can be operantly employed in a continuous performance T-maze task to detect discriminatory learning impairments in rats exposed to moderate prenatal alcohol. The current paradigm may be useful for assessing features of executive dysfunction in rodent models of fetal alcohol spectrum disorders.
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Affiliation(s)
- Caleb S Bailey
- Department of Psychology, University of Kentucky, United States; Department of Neuroscience, University of Kentucky, United States.
| | - Ashley J Craig
- Department of Neuroscience, University of Kentucky, United States
| | | | | | - Peggy S Keller
- Department of Psychology, University of Kentucky, United States
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258
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Qiao X, Shah W, Gao X, Gong Y, Li Y, Gao Y, Li J. Understanding how the immune system environment is controlled in high myopia cases. Int Immunopharmacol 2024; 143:113138. [PMID: 39362012 DOI: 10.1016/j.intimp.2024.113138] [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: 05/15/2024] [Revised: 09/03/2024] [Accepted: 09/08/2024] [Indexed: 10/05/2024]
Abstract
High myopia (HM) is characterized by a significant extension of the eye axis; it has emerged as a serious global public health issue recently. In addition to causing severe visual impairment, HM is associated with several problems that may compromise an individual's vision. Although genetic and environmental factors in HM have been extensively investigated, increasing evidence implicates the immune system and its microenvironment in its pathogenesis. In this review, we explore the complex interactions between cytokines, immune cells, and the eye environment to elucidate the complex processes controlling the immune response in HM. Furthermore, we investigated treatments modulating the immune response and alleviating the progression of HM and its complications. Through a review of the current relevant studies, we highlight the critical functions of the immune system in the multifactorial development of HM. With the evolving understanding of the immune system's involvement in HM, this review provides a valuable resource to clinicians and researchers to develop targeted interventions and personalized treatments for individuals with this vision-threatening condition.
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Affiliation(s)
- Xin Qiao
- Shanxi Eye Hospital Affiliated to Shanxi Medical University, Taiyuan 030002, China
| | - Wahid Shah
- Shanxi Eye Hospital Affiliated to Shanxi Medical University, Taiyuan 030002, China; Translational Medicine Research Center, Shanxi Medical University, Taiyuan 030001, China
| | - Xiaoqin Gao
- Shanxi Eye Hospital Affiliated to Shanxi Medical University, Taiyuan 030002, China
| | - Yuxing Gong
- Translational Medicine Research Center, Shanxi Medical University, Taiyuan 030001, China
| | - Yanan Li
- Translational Medicine Research Center, Shanxi Medical University, Taiyuan 030001, China
| | - Yuan Gao
- Shanxi Eye Hospital Affiliated to Shanxi Medical University, Taiyuan 030002, China; Translational Medicine Research Center, Shanxi Medical University, Taiyuan 030001, China.
| | - Junhong Li
- Shanxi Eye Hospital Affiliated to Shanxi Medical University, Taiyuan 030002, China.
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259
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Alitalo O, Kohtala S, Rosenholm M, Saarreharju R, González-Hernández G, Sarparanta M, Rozov S, Rantamäki T. Nitrous oxide induces hypothermia and TrkB activation: Maintenance of body temperature abolishes antidepressant-like effects in mice. Neuropharmacology 2024; 261:110172. [PMID: 39362627 DOI: 10.1016/j.neuropharm.2024.110172] [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: 08/20/2024] [Revised: 09/24/2024] [Accepted: 09/27/2024] [Indexed: 10/05/2024]
Abstract
Recent studies indicate that nitrous oxide (N2O), a gaseous anesthetic and an NMDA (N-methyl-D-aspartate) receptor antagonist, produces rapid antidepressant effect in patients suffering from treatment-resistant depression. Our recent work implies that hypothermia and reduced energy expenditure are connected with antidepressant-induced activation of TrkB neurotrophin receptors - a key regulator of synaptic plasticity. In this study, we demonstrate that a brief exposure to N2O leads to a drop in body temperature following the treatment, which is linked to decreased locomotor activity; enhanced slow-wave electroencephalographic activity; reduced brain glucose utilization; and increased phosphorylation of TrkB, GSK3β (glycogen synthase kinase 3β), and p70S6K (a kinase downstream of mTor (mammalian target of rapamycin)) in the medial prefrontal cortex of adult male mice. Moreover, preventing the hypothermic response in a chronic corticosterone stress model of depression attenuated the antidepressant-like behavioral effects of N2O in the saccharin preference test. These findings indicate that N2O treatment modulates TrkB signaling and related neurotrophic signaling pathways in a temperature-dependent manner, suggesting that the phenomenon driving TrkB activation - altered thermoregulation and energy expenditure - is linked to antidepressant-like behavioral responses.
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Affiliation(s)
- Okko Alitalo
- Laboratory of Neurotherapeutics, Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Finland; SleepWell Research Program, Faculty of Medicine, University of Helsinki, Finland
| | - Samuel Kohtala
- Laboratory of Neurotherapeutics, Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Finland; SleepWell Research Program, Faculty of Medicine, University of Helsinki, Finland
| | - Marko Rosenholm
- Laboratory of Neurotherapeutics, Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Finland; SleepWell Research Program, Faculty of Medicine, University of Helsinki, Finland; Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Roosa Saarreharju
- Laboratory of Neurotherapeutics, Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Finland; SleepWell Research Program, Faculty of Medicine, University of Helsinki, Finland
| | - Gemma González-Hernández
- Laboratory of Neurotherapeutics, Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Finland; SleepWell Research Program, Faculty of Medicine, University of Helsinki, Finland; Neuropsychopharmacology and Psychobiology Research Group, Department of Neurosciences, University of Cádiz, Cádiz, Spain
| | | | - Stanislav Rozov
- Laboratory of Neurotherapeutics, Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Finland; SleepWell Research Program, Faculty of Medicine, University of Helsinki, Finland
| | - Tomi Rantamäki
- Laboratory of Neurotherapeutics, Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Finland; SleepWell Research Program, Faculty of Medicine, University of Helsinki, Finland.
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260
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Wang J, Fourriere L, Gleeson PA. Advances in the cell biology of the trafficking and processing of amyloid precursor protein: impact of familial Alzheimer's disease mutations. Biochem J 2024; 481:1297-1325. [PMID: 39302110 DOI: 10.1042/bcj20240056] [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: 05/21/2024] [Revised: 09/02/2024] [Accepted: 09/05/2024] [Indexed: 09/22/2024]
Abstract
The production of neurotoxic amyloid-β peptides (Aβ) is central to the initiation and progression of Alzheimer's disease (AD) and involves sequential cleavage of the amyloid precursor protein (APP) by β- and γ-secretases. APP and the secretases are transmembrane proteins and their co-localisation in the same membrane-bound sub-compartment is necessary for APP cleavage. The intracellular trafficking of APP and the β-secretase, BACE1, is critical in regulating APP processing and Aβ production and has been studied in several cellular systems. Here, we summarise the intracellular distribution and transport of APP and its secretases, and the intracellular location for APP cleavage in non-polarised cells and neuronal models. In addition, we review recent advances on the potential impact of familial AD mutations on APP trafficking and processing. This is critical information in understanding the molecular mechanisms of AD progression and in supporting the development of novel strategies for clinical treatment.
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Affiliation(s)
- Jingqi Wang
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Lou Fourriere
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Paul A Gleeson
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria 3010, Australia
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261
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Ghosh S, Roy R, Mukherjee N, Ghosh S, Jash M, Jana A, Ghosh S. EphA4 Targeting Peptide-Conjugated Extracellular Vesicles Rejuvenates Adult Neural Stem Cells and Exerts Therapeutic Benefits in Aging Rats. ACS Chem Neurosci 2024; 15:3482-3495. [PMID: 39288278 DOI: 10.1021/acschemneuro.4c00331] [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] [Indexed: 09/19/2024] Open
Abstract
Aging and various neurodegenerative diseases cause significant reduction in adult neurogenesis and simultaneous increase in quiescent neural stem cells (NSCs), which impact the brain's regenerative capabilities. To deal with this challenging issue, current treatments involve stem cell transplants or prevention of neurodegeneration; however, the efficacy or success of this process remains limited. Therefore, extensive and focused investigation is highly demanding to overcome this challenging task. Here, we have designed an efficient peptide-based EphA4 receptor-targeted ligand through an in silico approach. Further, this strategy involves chemical conjugation of the peptide with adipose tissue stem cell-derived EV (Exo-pep-11). Interestingly, our newly designed engineered EV, Exo-pep-11, targets NSC through EphA4 receptors, which offers promising therapeutic advantages by stimulating NSC proliferation and subsequent differentiation. Our result demonstrates that NSC successfully internalized Exo-pep-11 in both in vitro culture conditions as well as in the in vivo aging rats. We found that the uptake of Exo-pep-11 decreased by ∼2.3-fold when NSC was treated with EphA4 antibody before Exo-pep-11 incubation, which confirms the receptor-specific uptake of Exo-pep-11. Exo-pep-11 treatment also increases NSC proliferation by ∼1.9-fold and also shows ∼1.6- and ∼2.4-fold increase in expressions of Nestin and ID1, respectively. Exo-pep-11 also has the potential to increase neurogenesis in aging rats, which is confirmed by ∼1.6- and ∼1.5-fold increases in expressions of TH and Tuj1, respectively, in rat olfactory bulb. Overall, our findings highlight the potential role of Exo-pep-11 for prospective applications in combating age-related declines in NSC activity and neurogenesis.
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Affiliation(s)
- Satyajit Ghosh
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
| | - Rajsekhar Roy
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
| | - Nabanita Mukherjee
- Smart Healthcare, Interdisciplinary Research Platform, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
| | - Surojit Ghosh
- Smart Healthcare, Interdisciplinary Research Platform, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
| | - Moumita Jash
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
| | - Aniket Jana
- Smart Healthcare, Interdisciplinary Research Platform, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
| | - Surajit Ghosh
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
- Smart Healthcare, Interdisciplinary Research Platform, Indian Institute of Technology Jodhpur, NH 62, Surpura Bypass Road, Karwar 342037, Rajasthan, India
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262
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Feng Y, Yang X, Hou Y, Zhou Y, Leverenz JB, Eng C, Pieper AA, Goate A, Shen Y, Cheng F. Widespread transposable element dysregulation in human aging brains with Alzheimer's disease. Alzheimers Dement 2024. [PMID: 39356058 DOI: 10.1002/alz.14164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 07/08/2024] [Accepted: 07/11/2024] [Indexed: 10/03/2024]
Abstract
INTRODUCTION Transposable element (TE) dysregulation is associated with neuroinflammation in Alzheimer's disease (AD) brains. Yet, TE quantitative trait loci (teQTL) have not been well characterized in human aged brains with AD. METHODS We leveraged large-scale bulk and single-cell RNA sequencing, whole-genome sequencing (WGS), and xQTL from three human AD brain biobanks to characterize TE expression dysregulation and experimentally validate AD-associated TEs using CRISPR interference (CRISPRi) assays in human induced pluripotent stem cell (iPSC)-derived neurons. RESULTS We identified 26,188 genome-wide significant TE expression QTLs (teQTLs) in human aged brains. Subsequent colocalization analysis of teQTLs with AD genetic loci identified AD-associated teQTLs and linked locus TEs. Using CRISPRi assays, we pinpointed a neuron-specific suppressive role of the activated short interspersed nuclear element (SINE; chr11:47608036-47608220) on expression of C1QTNF4 via reducing neuroinflammation in human iPSC-derived neurons. DISCUSSION We identified widespread TE dysregulation in human AD brains and teQTLs offer a complementary analytic approach to identify likely AD risk genes. HIGHLIGHTS Widespread transposable element (TE) dysregulations are observed in human aging brains with degrees of neuropathology, apolipoprotein E (APOE) genotypes, and neuroinflammation in Alzheimer's disease (AD). A catalog of TE quantitative trait loci (teQTLs) in human aging brains was created using matched RNA sequencing and whole-genome sequencing data. CRISPR interference assays reveal that an upregulated intergenic TE from the MIR family (chr11: 47608036-47608220) suppresses expression of its nearest anti-inflammatory gene C1QTNF4 in human induced pluripotent stem cell-derived neurons.
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Affiliation(s)
- Yayan Feng
- Cleveland Clinic Genome Center, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Xiaoyu Yang
- Cleveland Clinic Genome Center, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Institute for Human Genetics, University of California, San Francisco, San Francisco, California, USA
| | - Yuan Hou
- Cleveland Clinic Genome Center, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Yadi Zhou
- Cleveland Clinic Genome Center, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - James B Leverenz
- Lou Ruvo Center for Brain Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Charis Eng
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Andrew A Pieper
- Department of Psychiatry, Case Western Reserve University, Cleveland, Ohio, USA
- Brain Health Medicines Center, Harrington Discovery Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- Geriatric Psychiatry, GRECC, Louis Stokes Cleveland VA Medical Center, Cleveland, Ohio, USA
- Institute for Transformative Molecular Medicine, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Neurosciences, Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
| | - Alison Goate
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yin Shen
- Institute for Human Genetics, University of California, San Francisco, San Francisco, California, USA
- Department of Neurology, University of California, San Francisco, San Francisco, California, USA
- Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California, USA
| | - Feixiong Cheng
- Cleveland Clinic Genome Center, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
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263
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Chung DJ, Wang CH, Liu PJ, Ng SK, Luo CK, Jwo SH, Li CT, Hsu DY, Fan CC, Wei TT. Targeting CREB-binding protein (CBP) abrogates colorectal cancer stemness through epigenetic regulation of C-MYC. Cancer Gene Ther 2024:10.1038/s41417-024-00838-9. [PMID: 39358564 DOI: 10.1038/s41417-024-00838-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 09/23/2024] [Accepted: 09/25/2024] [Indexed: 10/04/2024]
Abstract
Colorectal cancer (CRC) is a common cancer worldwide with an increasing annual incidence. Cancer stem cells (CSCs) play important roles in the occurrence, development, recurrence, and metastasis of CRC. The molecular mechanism regulating the development of colorectal CSCs remains unclear. The discovery of human induced pluripotent stem cells (hiPSCs) through somatic cell reprogramming has revolutionized the fields of stem cell biology and translational medicine. In the present study, we converted hiPSCs into cancer stem-like cells by culture with conditioned medium (CM) from CRC cells. These transformed cells, termed hiPSC-CSCs, displayed cancer stem-like properties, including a spheroid morphology and the expression of both pluripotency and CSC markers. HiPSC-CSCs showed tumorigenic and metastatic abilities in mouse models. The epithelial-mesenchymal transition phenotype was observed in hiPSC-CSCs, which promoted their migration and angiogenesis. Interestingly, upregulation of C-MYC was observed during the differentiation of hiPSC-CSCs. Mechanistically, CREB binding protein (CBP) bound to the C-MYC promoter, while histone deacetylase 1 and 3 (HDAC1/3) dissociated from the promoter, ultimately leading to an increase in histone acetylation and C-MYC transcriptional activation during the differentiation of hiPSC-CSCs. Pharmacological treatment with a CBP inhibitor or abrogation of CBP expression with a CRISPR/Cas9-based strategy reduced the stemness of hiPSC-CSCs. This study demonstrates for the first time that colorectal CSCs can be generated from hiPSCs. The upregulation of C-MYC via histone acetylation plays a crucial role during the conversion process. Inhibition of CBP is a potential strategy for attenuating the stemness of colorectal CSCs.
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Affiliation(s)
- Dai-Jung Chung
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Chun-Hao Wang
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, 100225, Taiwan
| | - Pin-Jung Liu
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Shang-Kok Ng
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Cong-Kai Luo
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Si-Han Jwo
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Chin-Tzu Li
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Dai-Yi Hsu
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Chia-Chu Fan
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Tzu-Tang Wei
- Department and Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan.
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program in Chemical Biology and Molecular Biophysics (TIGP-CBMB), Academia Sinica, Taipei, 11529, Taiwan.
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Cao C, Litvak V, Zhan S, Liu W, Zhang C, Sun B, Li D, van Wijk BCM. Low-beta versus high-beta band cortico-subcortical coherence in movement inhibition and expectation. Neurobiol Dis 2024:106689. [PMID: 39366457 DOI: 10.1016/j.nbd.2024.106689] [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: 08/06/2024] [Revised: 09/12/2024] [Accepted: 09/30/2024] [Indexed: 10/06/2024] Open
Abstract
Beta band oscillations in the sensorimotor cortex and subcortical structures, such as the subthalamic nucleus (STN) and internal pallidum (GPi), are closely linked to motor control. Recent research suggests that low-beta (14.5-23.5 Hz) and high-beta (23.5-35 Hz) cortico-STN coherence arise through distinct networks, possibly reflecting indirect and hyperdirect pathways. In this study, we sought to probe whether low- and high-beta coherence also exhibit different functional roles in facilitating and inhibiting movement. Twenty patients with Parkinson's disease who had deep brain stimulation electrodes implanted in either STN or GPi performed a classical go/nogo task while undergoing simultaneous magnetoencephalography and local field potentials recordings. Subjects' expectations were manipulated by presenting go- and nogo-trials with varying probabilities. We identified a lateral source in the sensorimotor cortex for low-beta coherence, as well as a medial source near the supplementary motor area for high-beta coherence. Task-related coherence time courses for these two sources revealed that low-beta coherence was more strongly implicated than high-beta coherence in the performance of go-trials. Accordingly, average pre-stimulus low-beta but not high-beta coherence or spectral power correlated with overall reaction time across subjects. High-beta coherence during unexpected nogo-trials was higher compared to expected nogo-trials at a relatively long latency of 3 s after stimulus presentation. Neither low- nor high-beta coherence showed a significant correlation with patients' symptom severity at baseline assessment. While low-beta cortico-subcortical coherence appears to be related to motor output, the role of high-beta coherence requires further investigation.
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Affiliation(s)
- Chunyan Cao
- Department of Neurosurgery, Affiliated Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China.
| | - Vladimir Litvak
- Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Shikun Zhan
- Department of Neurosurgery, Affiliated Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Wei Liu
- Department of Neurosurgery, Affiliated Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Chao Zhang
- Department of Neurosurgery, Affiliated Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Bomin Sun
- Department of Neurosurgery, Affiliated Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Dianyou Li
- Department of Neurosurgery, Affiliated Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China.
| | - Bernadette C M van Wijk
- Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK; Department of Human Movement Sciences, Vrije Universiteit Amsterdam, 1081, BT, Amsterdam, the Netherlands; Department of Neurology, Amsterdam University Medical Centers, Amsterdam Neuroscience, University of Amsterdam, 1105, AZ, Amsterdam, the Netherlands.
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265
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Cai W, Wei XF, Zhang JR, Tao L, Li D, Zhang K, Shen WD. Acupuncture ameliorates depression-like behavior of poststroke depression model rats through the regulation of gut microbiota and NLRP3 inflammasome in the colon. Neuroreport 2024; 35:883-894. [PMID: 39207304 DOI: 10.1097/wnr.0000000000002076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
This study was conducted to examine the effects of acupuncture on gut microbiota and expression of NLRP3 inflammasome in the colon in poststroke depression (PSD) model rats. Sprague-Dawley male rats were randomized into four groups: sham surgery group, poststroke depression group, acupuncture group, and probiotics group. Acupuncture therapy at Baihui (GV20), Shenting (GV24), bilateral Zusanli (ST36) acupoints in the acupuncture group and probiotic gavage therapy in the probiotics group were performed once per day for 2 weeks. Behaviors of depression were assessed by using weight measurements, sucrose preference test, open field test, and forced swimming test. Histopathological alterations in the colon were determined by hematoxylin-eosin staining, the expression of NLRP3/ASC/caspase-1 pathway-related proteins was analyzed by western blotting. Serum levels of IL-1β and IL-18 were derived from ELISA. The 16S rRNA gene sequencing was performed to examine and analyze the differences of gut microbiota of rats among all groups. Acupuncture was effective to increase weight and ameliorate depressive-like behaviors in PSD rats. Acupuncture increased the diversity of gut microbiota, upregulated the abundance of Bifidobacteriaceae and Lactobacillaceae, and decreased the relative abundance of Peptostreptococcaceae, Rikenellaceae, Eggerthellaceae, and Streptococcaceae at family level. Acupuncture effectively improved the pathological changes in the colon. Meanwhile, acupuncture reduced NLRP3, ASC, caspase-1 protein expressions in the colon, and serum levels of IL-18 and IL-1β. Acupuncture may reduce depressive-like behaviors of PSD by regulating the gut microbiota and suppressing hyperactivation of NLRP3 inflammasome in the colon. Microbiota-gut-brain axis may be an effective target pathway for acupuncture treatment of PSD.
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Affiliation(s)
- Wa Cai
- Department of Acupuncture, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai
| | - Xi-Fang Wei
- Department of Acupuncture, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou
| | - Jing-Ruo Zhang
- Department of Acupuncture and Moxibustion, Jiaxing Hospital of TCM, Zhejiang Chinese Medicine University, Jiaxing, China
| | - Larissa Tao
- Department of Acupuncture, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai
| | - Dong Li
- Department of Acupuncture, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai
| | - Kun Zhang
- Department of Acupuncture, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai
| | - Wei-Dong Shen
- Department of Acupuncture, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai
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266
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Lin Q, Zhang C, Huang H, Bai Z, Liu J, Zhang Y, Li X, Wang G. TLR2 reprograms glucose metabolism in CD4 + T cells of rheumatoid arthritis patients to mediate cell hyperactivation and TNF-α secretion. Clin Rheumatol 2024:10.1007/s10067-024-07125-w. [PMID: 39356380 DOI: 10.1007/s10067-024-07125-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/30/2024] [Accepted: 08/25/2024] [Indexed: 10/03/2024]
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease in which activated CD4+ T cells participate in the disease process by inducing inflammation. We aimed to investigate the role of Toll-like receptor 2 (TLR2) on CD4+ T cells in RA patients, and to elucidate the underlying mechanisms by which TLR2 contributes to the pathogenesis of RA. METHODS Serum samples were collected from RA patients and healthy controls. Soluble TLR2 levels were quantified using an enzyme-linked immunosorbent assay (ELISA). Flow cytometry was employed to assess the TLR2 expression level, activation status, cytokine production, reactive oxygen species (ROS) levels, and glucose uptake capacity of CD4+ T cells. Quantitative polymerase chain reaction (qPCR) was used to measure the expression of enzymes associated with glucose and lipid metabolism. The concentration of lactic acid in the culture supernatant was determined using a dedicated detection kit. RESULTS RA patients had higher levels of TLR2 in their serum, which positively correlated with C-reactive protein and rheumatoid factor. The expression level of TLR2 in CD4+ T cells of RA patients was increased, and TLR2+ cells showed higher activation levels than TLR2- cells. Activation of TLR2 in CD4+ T cells of RA patients promoted their activation, TNF-α secretion, and increased production of ROS. Furthermore, TLR2 activation led to changes in enzymes related to glucose metabolism, causing a shift in glucose metabolism towards the pentose phosphate pathway. Blocking oxidative phosphorylation and the pentose phosphate pathway had varying effects on CD4+ T cell function. CONCLUSION TLR2 reprograms the glucose metabolism of CD4+ T cells in RA patients, contributing to the development of RA through ROS-mediated cell hyperactivation and TNF-α secretion. Key Points • TLR2 is upregulated in CD4+ T cells of RA patients and correlates with disease severity markers such as CRP and RF. • Activation of TLR2 in CD4+ T cells promotes cell activation, TNF-α secretion, and increased ROS production, contributing to the pathogenesis of RA. • TLR2 activates glucose metabolism in CD4+ T cells, shifting towards the pentose phosphate pathway, which may be a novel therapeutic target for RA treatment. • Blocking glucose metabolism and ROS production can reduce CD4 + T cell hyperactivation and TNF-α secretion, indicating potential therapeutic strategies for RA management.
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Affiliation(s)
- Qian Lin
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Cheng Zhang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Huina Huang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Ziran Bai
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Jiaqing Liu
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Yan Zhang
- Department of Rheumatology, Second Hospital of Dalian Medical University, Dalian, Liaoning, China.
| | - Xia Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Guan Wang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, China.
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267
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Li M, Miao L, Xu X, Liu Y, Wang Y, Yang F. Hypoxia-Responsive Biomimetic Nanobubbles for Oxygen Delivery Promote Synergistic Ischemic Stroke Protection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:52036-52046. [PMID: 39315539 DOI: 10.1021/acsami.4c11009] [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: 09/25/2024]
Abstract
Effective, precise, and controllable oxygen delivery is crucial for regulating the oxygenation balance of brain tissue at the early stages of acute ischemic stroke (AIS) because the absence of oxygen may result in a series of highly interconnected vascular-neural pathological events, including oxidative stress, inflammation, and neuroapoptosis. In this study, platelet membrane-reassembled oxygen nanobubbles (PONBs) were constructed for oxygen delivery to protect AIS. Benefiting from the preserved natural targeting ability of platelet membranes, oxygen can be controlled release into the hypoxia lesion at the preperfusion stage due to vascular injury targeting and oxygen sustained diffusion capability after PONBs administration. Furthermore, synergizing with bioactive components carried by platelet membranes, PONBs can inhibit post-AIS vascular occlusion and maintain blood-brain barrier integrity, thereby facilitating enhanced oxygen delivery of PONBs, establishing a positive feedback loop between oxygen delivery and AIS protection. Additionally, the accumulation of PONBs enhances the ultrasound imaging contrast, enabling precise localization and dynamic monitoring of AIS lesions. Thus, PONBs represent a promising strategy for the diagnosis and treatment of AIS.
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Affiliation(s)
- Mingxi Li
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Lijun Miao
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Xuan Xu
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, 87 Dingjiaqiao, Nanjing 210009, P. R. China
| | - Yang Liu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Yakun Wang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Fang Yang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
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268
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Liu L, Wang T, Zhou H, Zheng J, Liu Q, Wang W, Liu X, Zhang X, Ge D, Shi W, Sun Y. Protective and Damaging Mechanisms of Neuromelanin-Like Nanoparticles and Iron in Parkinson's Disease. Adv Healthc Mater 2024:e2402718. [PMID: 39358952 DOI: 10.1002/adhm.202402718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 09/18/2024] [Indexed: 10/04/2024]
Abstract
Parkinson's disease (PD) pathology speculates that neuromelanin (NM) and iron ions play a significant role in physiological and pathological conditions of PD. Because the difficult accessibility of NM has limited targeted research, synthetic melanin-like nanoparticles have been used to instead. In this report, the eumelanin and pheomelanin-like polydopamine (PDA) nanoparticles are prepared that can be used to simulate natural NM with or without chelating iron ion and studied the redox effects in vitro and in vivo on neuronal cells and PD. The synthetic pheomelanin-like PDA nanoparticles have much stronger redox activity than eumelanin-like PDA nanoparticles without or with iron ion. They can protect neurons by scavenging reactive oxygen species (ROS), while cause neuronal cell death and PD due to excessive binding of iron ions. This work provides new evidence for the relationship among two structural components of NM and iron in PD as well as displays the different effects on the roles of eumelanin and pheomelanin in redox activity under physiological or pathological conditions, which provide a new effective choice for cellular and animal models of PD and offer theoretical guidance for targeted treatment and mechanism research on PD.
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Affiliation(s)
- Lizhu Liu
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Tianying Wang
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Hao Zhou
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Jinyang Zheng
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Qiang Liu
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Wei Wang
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Xinxin Liu
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Xiuming Zhang
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Dongtao Ge
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Wei Shi
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Yanan Sun
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
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269
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Negueruela S, Morenilla-Palao C, Sala S, Ordoño P, Herrera M, Coca Y, López-Cascales MT, Florez-Paz D, Gomis A, Herrera E. Proper Frequency of Perinatal Retinal Waves Is Essential for the Precise Wiring of Visual Axons in Nonimage-Forming Nuclei. J Neurosci 2024; 44:e1408232024. [PMID: 39151955 DOI: 10.1523/jneurosci.1408-23.2024] [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: 07/11/2023] [Revised: 08/05/2024] [Accepted: 08/07/2024] [Indexed: 08/19/2024] Open
Abstract
The development of the visual system is a complex and multistep process characterized by the precise wiring of retinal ganglion cell (RGC) axon terminals with their corresponding neurons in the visual nuclei of the brain. Upon reaching primary image-forming nuclei (IFN), such as the superior colliculus and the lateral geniculate nucleus, RGC axons undergo extensive arborization that refines over the first few postnatal weeks. The molecular mechanisms driving this activity-dependent remodeling process, which is influenced by waves of spontaneous activity in the developing retina, are still not well understood. In this study, by manipulating the activity of RGCs in mice from either sex and analyzing their transcriptomic profiles before eye-opening, we identified the Type I membrane protein synaptotagmin 13 (Syt13) as involved in spontaneous activity-dependent remodeling. Using these mice, we also explored the impact of spontaneous retinal activity on the development of other RGC recipient targets such as nonimage-forming (NIF) nuclei and demonstrated that proper frequency and duration of retinal waves occurring prior to visual experience are essential for shaping the connectivity of the NIF circuit. Together, these findings contribute to a deeper understanding of the molecular and physiological mechanisms governing activity-dependent axon refinement during the assembly of the visual circuit.
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Affiliation(s)
- Santiago Negueruela
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Cruz Morenilla-Palao
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Salvador Sala
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Patricia Ordoño
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Macarena Herrera
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Yaiza Coca
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Maria Teresa López-Cascales
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Danny Florez-Paz
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Ana Gomis
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
| | - Eloísa Herrera
- Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), San Juan de Alicante 03550, Spain
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270
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Wydrych A, Pakuła B, Janikiewicz J, Dobosz AM, Jakubek-Olszewska P, Skowrońska M, Kurkowska-Jastrzębska I, Cwyl M, Popielarz M, Pinton P, Zavan B, Dobrzyń A, Lebiedzińska-Arciszewska M, Więckowski MR. Metabolic impairments in neurodegeneration with brain iron accumulation. BIOCHIMICA ET BIOPHYSICA ACTA. BIOENERGETICS 2024:149517. [PMID: 39366438 DOI: 10.1016/j.bbabio.2024.149517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 08/12/2024] [Accepted: 09/18/2024] [Indexed: 10/06/2024]
Abstract
Neurodegeneration with brain iron accumulation (NBIA) is a broad, heterogeneous group of rare inherited diseases (1-3 patients/1,000,000 people) characterized by progressive symptoms associated with excessive abnormal iron deposition in the brain. Approximately 15,000-20,000 individuals worldwide are estimated to be affected by NBIA. NBIA is usually associated with slowly progressive pyramidal and extrapyramidal symptoms, axonal motor neuropathy, optic nerve atrophy, cognitive impairment and neuropsychiatric disorders. To date, eleven subtypes of NBIA have been described and the most common ones include pantothenate kinase-associated neurodegeneration (PKAN), PLA2G6-associated neurodegeneration (PLAN), mitochondrial membrane protein-associated neurodegeneration (MPAN) and beta-propeller protein-associated neurodegeneration (BPAN). We present a comprehensive overview of the evidence for disturbed cellular homeostasis and metabolic alterations in NBIA variants, with a careful focus on mitochondrial bioenergetics and lipid metabolism which drives a new perspective in understanding the course of this infrequent malady.
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Affiliation(s)
- Agata Wydrych
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Barbara Pakuła
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Justyna Janikiewicz
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Warsaw
| | - Aneta M Dobosz
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Warsaw
| | - Patrycja Jakubek-Olszewska
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Marta Skowrońska
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland
| | | | - Maciej Cwyl
- Warsaw University of Technology, Warsaw, Poland; NBIA Poland Association, Warsaw, Poland
| | | | - Paolo Pinton
- Department of Medical Sciences, Section of Experimental Medicine, Laboratory for Technologies of Advanced Therapies, University of Ferrara, Ferrara, Italy
| | - Barbara Zavan
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Agnieszka Dobrzyń
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Warsaw
| | | | - Mariusz R Więckowski
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Warsaw, Poland.
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271
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França VLB, Bezerra EM, da Costa RF, Carvalho HF, Freire VN, Matos G. Alzheimer's Disease Immunotherapy and Mimetic Peptide Design for Drug Development: Mutation Screening, Molecular Dynamics, and a Quantum Biochemistry Approach Focusing on Aducanumab::Aβ2-7 Binding Affinity. ACS Chem Neurosci 2024; 15:3543-3562. [PMID: 39302203 DOI: 10.1021/acschemneuro.4c00453] [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] [Indexed: 09/22/2024] Open
Abstract
Seven treatments are approved for Alzheimer's disease, but five of them only relieve symptoms and do not alter the course of the disease. Aducanumab (Adu) and lecanemab are novel disease-modifying antiamyloid-β (Aβ) human monoclonal antibodies that specifically target the pathophysiology of Alzheimer's disease (AD) and were recently approved for its treatment. However, their administration is associated with serious side effects, and their use is limited to early stages of the disease. Therefore, drug discovery remains of great importance in AD research. To gain new insights into the development of novel drugs for Alzheimer's disease, a combination of techniques was employed, including mutation screening, molecular dynamics, and quantum biochemistry. These were used to outline the interfacial interactions of the Aducanumab::Aβ2-7 complex. Our analysis identified critical stabilizing contacts, revealing up to 40% variation in the affinity of the Adu chains for Aβ2-7 depending on the conformation outlined. Remarkably, two complementarity determining regions (CDRs) of the Adu heavy chain (HCDR3 and HCDR2) and one CDR of the Adu light chain (LCDR3) accounted for approximately 77% of the affinity of Adu for Aβ2-7, confirming their critical role in epitope recognition. A single mutation, originally reported to have the potential to increase the affinity of Adu for Aβ2-7, was shown to decrease its structural stability without increasing the overall binding affinity. Mimetic peptides that have the potential to inhibit Aβ aggregation were designed by using computational outcomes. Our results support the use of these peptides as promising drugs with great potential as inhibitors of Aβ aggregation.
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Affiliation(s)
- Victor L B França
- Department of Physiology and Pharmacology, Federal University of Ceará, 60430-270 Fortaleza, Ceará, Brazil
| | - Eveline M Bezerra
- Department of Sciences, Mathematics and Statistics, Federal Rural University of Semi-Arid (UFERSA), 59625-900 Mossoró, RN, Brazil
| | - Roner F da Costa
- Department of Sciences, Mathematics and Statistics, Federal Rural University of Semi-Arid (UFERSA), 59625-900 Mossoró, RN, Brazil
| | - Hernandes F Carvalho
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, 13083-864 Campinas, São Paulo, Brazil
| | - Valder N Freire
- Department of Physics, Federal University of Ceará, 60430-270 Fortaleza, Ceará, Brazil
| | - Geanne Matos
- Department of Physiology and Pharmacology, Federal University of Ceará, 60430-270 Fortaleza, Ceará, Brazil
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272
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Nawrotek K, Chyb M, Gatkowska J, Rudnicka K, Michlewska S, Jóźwiak P. Effect of sodium L-lactate on bioactive properties of chitosan-hydroxyapatite/polycaprolactone conduits for peripheral nerve tissue engineering. Int J Biol Macromol 2024; 281:136254. [PMID: 39366606 DOI: 10.1016/j.ijbiomac.2024.136254] [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: 02/22/2024] [Revised: 09/26/2024] [Accepted: 10/01/2024] [Indexed: 10/06/2024]
Abstract
Biomaterials and synthetic polymers have been widely used to replicate the regenerative microenvironment of the peripheral nervous system. Chitosan-based conduits have shown promise in the regeneration of nerve injuries. However, to mimic the regenerative microenvironment, the scaffold structure should possess bioactive properties. This can be achieved by the incorporation of biomolecules (e.g., proteins, peptides) or trophic factors that should preferably be aligned and/or released with controlled kinetics to activate the process of positive axon chemotaxis. In this study, sodium L-lactate has been used to enhance the bioactive properties of chitosan-hydroxyapatite/polycaprolactone electrodeposits. Next, two methods have been developed to incorporate NGF-loaded microspheres - Method 1 involves entrapment and co-deposition of NGF-loaded microspheres, while Method 2 is based on absorption of NGF-loaded microspheres. The study shows that modification of chitosan-hydroxyapatite/polycaprolactone conduits by sodium L-lactate significantly improves their bioactive, biological, and physicochemical properties. The obtained implants are cytocompatible, enhancing the neurite regeneration process by stimulating its elongation. The absorption of NGF-loaded microspheres into the conduit structure may be considered more favorable for the stimulation of axonal elongation compared to entrapment, as it allows for trophic factor dose-dependent controlled release. . The developed conduits possess properties essential for the successful treatment of peripheral nerve discontinuities.
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Affiliation(s)
- Katarzyna Nawrotek
- Lodz University of Technology, Faculty of Process and Environmental Engineering, Department of Environmental Engineering, Wolczanska 213, 93-005 Lodz, Poland; Lodz University of Technology, International Centre for Research on Innovative Bio-based Materials, 2/22 Stefanowskiego, 90-537, Poland; Warsaw University of Technology, Centre for Advanced Materials and Technology (CEZAMAT), 19 Poleczki, 02-822 Warsaw, Poland.
| | - Maciej Chyb
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Microbiology, 12/16 Banacha, 90-237 Lodz, Poland; Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences Banacha 12/16, 90-237 Lodz, Poland.
| | - Justyna Gatkowska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Microbiology, 12/16 Banacha, 90-237 Lodz, Poland.
| | - Karolina Rudnicka
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Immunology and Infectious Biology, 90-237 Lodz, Poland.
| | - Sylwia Michlewska
- University of Lodz, Faculty of Biology and Environmental Protection, Laboratory of Microscopic Imaging and Specialized Biological Techniques, Banacha 12/16, 90-237 Lodz, Poland.
| | - Piotr Jóźwiak
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Invertebrates Zoology and Hydrobiology, Banacha 12/16, 90-324 Lodz, Poland.
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273
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Tufvesson-Alm M, Aranäs C, Blid Sköldheden S, Vestlund J, Edvardsson CE, Jerlhag E. LEAP2, a ghrelin receptor inverse agonist, and its effect on alcohol-related responses in rodents. Transl Psychiatry 2024; 14:401. [PMID: 39358354 PMCID: PMC11446955 DOI: 10.1038/s41398-024-03136-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 09/20/2024] [Accepted: 09/25/2024] [Indexed: 10/04/2024] Open
Abstract
The underlying neurobiology of alcohol use disorder (AUD) is complex and needs further unraveling, with one of the key mechanisms being the gut-brain peptide ghrelin and its receptor (GHSR). However, additional substrates of the ghrelin pathway, such as liver-expressed antimicrobial peptide 2 (LEAP2), an endogenous GHSR inverse agonist, may contribute to this neurobiological framework. While LEAP2 modulates feeding and reward through central mechanisms, its effects on alcohol responses are unknown. The aim of the present study was therefore to identify the impact of central LEAP2 on the ability of alcohol to activate the mesolimbic dopamine system and to define its ability to control alcohol intake. These experiments revealed that central LEAP2 (i.e. into the third ventricle) prevented the ability of alcohol to cause locomotor stimulation in male mice, suppressed the memory of alcohol reward and attenuated the dopamine release in the nucleus accumbens caused by alcohol. Moreover, central LEAP2 reduced alcohol consumption in both male and female rats exposed to alcohol for 6 weeks before treatment. However, the serum levels of LEAP2 were similar between high- and low- alcohol-consuming (male) rats. Furthermore, central LEAP2 lowered the food intake in the alcohol-consuming male rats and reduced the body weight in the females. Collectively, the present study revealed that central LEAP2 mitigates alcohol-related responses in rodents, contributing to our understanding of the ghrelin pathway's role in alcohol effects.
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Affiliation(s)
- Maximilian Tufvesson-Alm
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Cajsa Aranäs
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Sebastian Blid Sköldheden
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Jesper Vestlund
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Christian E Edvardsson
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Elisabet Jerlhag
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
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274
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Zhu J, Cirincione AB, Strauss MJ, Davis SE, Eans SO, Tribbitt DK, Alshakhshir N, McLaughlin JP. Impact of HIV-1 Tat protein on methamphetamine-induced inhibition of vesicular monoamine transporter2-mediated dopamine transport and methamphetamine conditioned place preference in HIV-1 Tat transgenic mice. Eur J Pharmacol 2024:177030. [PMID: 39366503 DOI: 10.1016/j.ejphar.2024.177030] [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: 05/05/2024] [Revised: 10/01/2024] [Accepted: 10/02/2024] [Indexed: 10/06/2024]
Abstract
Perturbation of dopamine transmission has been implicated as a contributing factor in HIV-1 associated neurocognitive disorders with concurrent methamphetamine (METH) abuse. We have demonstrated that the HIV-1 protein, transactivator of transcription (Tat), decreases dopamine transport through inhibition of vesicular monoamine transporter2 (VMAT2). This study determined the effects of Tat protein on METH-inhibited VMAT2 function and METH-conditioned place preference (CPP). In vitro exposure of isolated mouse whole brain vesicles to recombinant Tat1-86 or METH displayed a concentration-dependent inhibition of the vesicular [3H]Dopamine uptake, in which a combination of Tat and METH induced a greater reduction of dopamine uptake compared to Tat or METH alone. In vivo, the maximal velocity (Vmax) of vesicular [3H]Dopamine uptake was decreased in inducible Tat transgenic (iTat-tg) mice harvested after treatment with either 21-day doxycycline (Dox) or 14-day METH (3 mg/kg, i.p., daily), whereas these mice treated with both Dox and METH displayed an additive reduction of the Vmax compared to either Tat or METH alone. Moreover, Dox-induced Tat expression increased METH-CPP in an exposure-dependent manner, with iTat-tg mice demonstrating a 2.3-fold potentiation of METH-CPP compared with Tat null control mice upon administration of Dox for 14 days. Furthermore, a 7-day administration of Dox reinstated extinguished METH-CPP. Collectively, these results suggest a synergistic effect of Tat protein and METH on inhibition of VMAT2-mediated DA transport, potentially contributing to potentiation of METH-CPP in iTat-tg mice.
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Affiliation(s)
- Jun Zhu
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC 29208.
| | - Abagail B Cirincione
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC 29208
| | - Matthew J Strauss
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC 29208
| | - Sarah E Davis
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC 29208
| | - Shainnel O Eans
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610
| | - Danielle K Tribbitt
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610
| | - Nadine Alshakhshir
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610
| | - Jay P McLaughlin
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610
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275
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Zima L, Moore AN, Smolen P, Kobori N, Noble B, Robinson D, Hood KN, Homma R, Al Mamun A, Redell JB, Dash PK. The evolving pathophysiology of TBI and the advantages of temporally-guided combination therapies. Neurochem Int 2024; 180:105874. [PMID: 39366429 DOI: 10.1016/j.neuint.2024.105874] [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: 07/24/2024] [Revised: 09/26/2024] [Accepted: 10/01/2024] [Indexed: 10/06/2024]
Abstract
Several clinical and experimental studies have demonstrated that traumatic brain injury (TBI) activates cascades of biochemical, molecular, structural, and pathological changes in the brain. These changes combine to contribute to the various outcomes observed after TBI. Given the breadth and complexity of changes, combination treatments may be an effective approach for targeting multiple detrimental pathways to yield meaningful improvements. In order to identify targets for therapy development, the temporally evolving pathophysiology of TBI needs to be elucidated in detail at both the cellular and molecular levels, as it has been shown that the mechanisms contributing to cognitive dysfunction change over time. Thus, a combination of individual mechanism-based therapies is likely to be effective when maintained based on the time courses of the cellular and molecular changes being targeted. In this review, we will discuss the temporal changes of some of the key clinical pathologies of human TBI, the underlying cellular and molecular mechanisms, and the results from preclinical and clinical studies aimed at mitigating their consequences. As most of the pathological events that occur after TBI are likely to have subsided in the chronic stage of the disease, combination treatments aimed at attenuating chronic conditions such as cognitive dysfunction may not require the initiation of individual treatments at a specific time. We propose that a combination of acute, subacute, and chronic interventions may be necessary to maximally improve health-related quality of life (HRQoL) for persons who have sustained a TBI.
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Affiliation(s)
- Laura Zima
- Departments of Neurosurgery, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Anthony N Moore
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Paul Smolen
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Nobuhide Kobori
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Brian Noble
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Dustin Robinson
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Kimberly N Hood
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Ryota Homma
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Amar Al Mamun
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - John B Redell
- Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Pramod K Dash
- Departments of Neurosurgery, The University of Texas McGovern Medical School, Houston, TX, USA; Departments of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX, USA
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276
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Rahdar M, Davoudi S, Dehghan S, Javan M, Hosseinmardi N, Behzadi G, Janahmadi M. Reversal of electrophysiological and behavioral deficits mediated by 5-HT7 receptor upregulation following LP-211 treatment in an autistic-like rat model induced by prenatal valproic acid exposure. Neuropharmacology 2024; 257:110057. [PMID: 38964596 DOI: 10.1016/j.neuropharm.2024.110057] [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: 03/10/2024] [Revised: 06/11/2024] [Accepted: 06/27/2024] [Indexed: 07/06/2024]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by alterations and imbalances in multiple brain neurochemical systems, particularly the serotonergic neurotransmission. This includes changes in serotonin (5-HT) levels, aberrations in 5-HT transporter activity, and decreased synthesis and expression of 5-HT receptors (5-HT7Rs). The exact role of the brain 5-HT system in the development of ASD remains unclear, with conflicting evidence on its involvement. Recently, we have reported research has shown a significant decrease in serotonergic neurons originating from the raphe nuclei and projecting to the CA1 region of the dorsal hippocampus in autistic-like rats. Additionally, we have shown that chronic activation of 5-HT7Rs reverses the effects of autism induction on synaptic plasticity. However, the functional significance of 5-HT7Rs at the cellular level is still not fully understood. This study presents new evidence indicating an upregulation of 5-HT7R in the CA1 subregion of the hippocampus following the induction of autism. The present account also demonstrates that activation of 5-HT7R with its agonist LP-211 can reverse electrophysiological abnormalities in hippocampal pyramidal neurons in a rat model of autism induced by prenatal exposure to VPA. Additionally, in vivo administration of LP-211 resulted in improvements in motor coordination, novel object recognition, and a reduction in stereotypic behaviors in autistic-like offspring. The findings suggest that dysregulated expression of 5-HT7Rs may play a role in the pathophysiology of ASD, and that agonists like LP-211 could potentially be explored as a pharmacological treatment for autism spectrum disorder.
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Affiliation(s)
- Mona Rahdar
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shima Davoudi
- Neurophysiology Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samaneh Dehghan
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Javan
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Narges Hosseinmardi
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Gila Behzadi
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahyar Janahmadi
- Neuroscience Research Center and Dep. of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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277
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Li D, Jia J, Zeng H, Zhong X, Chen H, Yi C. Efficacy of exercise rehabilitation for managing patients with Alzheimer's disease. Neural Regen Res 2024; 19:2175-2188. [PMID: 38488551 PMCID: PMC11034587 DOI: 10.4103/1673-5374.391308] [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: 06/26/2023] [Revised: 10/16/2023] [Accepted: 11/25/2023] [Indexed: 04/24/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive and degenerative neurological disease characterized by the deterioration of cognitive functions. While a definitive cure and optimal medication to impede disease progression are currently unavailable, a plethora of studies have highlighted the potential advantages of exercise rehabilitation for managing this condition. Those studies show that exercise rehabilitation can enhance cognitive function and improve the quality of life for individuals affected by AD. Therefore, exercise rehabilitation has been regarded as one of the most important strategies for managing patients with AD. Herein, we provide a comprehensive analysis of the currently available findings on exercise rehabilitation in patients with AD, with a focus on the exercise types which have shown efficacy when implemented alone or combined with other treatment methods, as well as the potential mechanisms underlying these positive effects. Specifically, we explain how exercise may improve the brain microenvironment and neuronal plasticity. In conclusion, exercise is a cost-effective intervention to enhance cognitive performance and improve quality of life in patients with mild to moderate cognitive dysfunction. Therefore, it can potentially become both a physical activity and a tailored intervention. This review may aid the development of more effective and individualized treatment strategies to address the challenges imposed by this debilitating disease, especially in low- and middle-income countries.
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Affiliation(s)
- Dan Li
- Department of Pathology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Jinning Jia
- Department of Pathology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Haibo Zeng
- Department of Pathology, Huichang County People’s Hospital, Ganzhou, Jiangxi Province, China
| | - Xiaoyan Zhong
- Department of Pathology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Chenju Yi
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China
- Shenzhen Key Laboratory of Chinese Medicine Active Substance Screening and Translational Research, Shenzhen, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou, Guangdong Province, China
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278
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Calvo JR, Maldonado MD. Immunoregulatory properties of melatonin in the humoral immune system: A narrative review. Immunol Lett 2024; 269:106901. [PMID: 39032910 DOI: 10.1016/j.imlet.2024.106901] [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: 06/18/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Melatonin is the major product both synthesized and secreted by the pineal gland during the night period and it is the principal chronobiotic hormone that regulates the circadian rhythms and seasonal changes in vertebrate biology. Moreover, melatonin shows both a broad distribution along the phylogenetically distant organisms and a high functional versatility. At the present time, a significant amount of experimental evidence has been reported in scientific literature and has clearly shown a functional relationship between the endocrine, nervous, and immune systems. The biochemistry basis of the functional communication between these systems is the utilization of a common chemicals signals. In this framework, at present melatonin is considered to be a relevant member of the so-called neuro-endocrine-immunological network. Thus, both in vivo and in vitro investigations conducted in both experimental animals and humans, have clearly documented that melatonin has an important immunomodulatory role. However, most of the published results refer to information on T lymphocytes, i.e., cell-mediated immunity. On the contrary, fewer studies have been carried out on B lymphocytes, the cells responsible for the so-called humoral immunity. In this review, we have focused on the biological role of melatonin in the humoral immunity. More precisely, we report the actions of melatonin on B lymphocytes biology and on the production of different types of antibodies.
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Affiliation(s)
- Juan R Calvo
- Department Medical Biochemistry, Molecular Biology and Immunology, University of Seville Medical School, Spain.
| | - María D Maldonado
- Department Medical Biochemistry, Molecular Biology and Immunology, University of Seville Medical School, Spain
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279
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von Kalben L, Sauer J, Gee C, Hirnet D, Lohr C. Dopaminergic cAMP signaling in mouse olfactory bulb astrocytes. Neurochem Int 2024; 179:105828. [PMID: 39134121 DOI: 10.1016/j.neuint.2024.105828] [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: 05/01/2024] [Revised: 07/20/2024] [Accepted: 08/04/2024] [Indexed: 08/25/2024]
Abstract
Cyclic AMP (cAMP) is an important second messenger in virtually all animal cell types, including astrocytes. In the brain, it modulates energy metabolism, development and synaptic plasticity. Dopamine receptors are G protein-coupled receptors that affect cAMP production by adenylyl cyclases. They are divided into two subgroups, D1-like receptors linked to Gs proteins stimulating cAMP production and D2-like receptors linked to Gi/o proteins inhibiting cAMP production. In the present study, we investigated the effect of dopamine receptor activation on cAMP dynamics in astrocytes of the mouse olfactory bulb, the brain region with the largest population of dopaminergic neurons. Using the genetically encoded cAMP sensor Flamindo2 we visualized changes in the cytosolic cAMP concentration and showed that dopamine application results in a transient increase in cAMP. This cAMP increase could be mimicked by the D1-like receptor agonist A 68930 and was inhibited by the D1-like receptor antagonist SCH 23390, whereas D2-like receptor ligands had no effect on the astrocytic cAMP concentration. Thus, olfactory bulb astrocytes express D1-like receptors that are linked to cAMP production.
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Affiliation(s)
- Levi von Kalben
- Institute of Cell and Systems Biology of Animals, University of Hamburg, Hamburg, Germany
| | - Jessica Sauer
- Institute of Cell and Systems Biology of Animals, University of Hamburg, Hamburg, Germany
| | - Christine Gee
- Institute of Synaptic Physiology, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniela Hirnet
- Institute of Cell and Systems Biology of Animals, University of Hamburg, Hamburg, Germany
| | - Christian Lohr
- Institute of Cell and Systems Biology of Animals, University of Hamburg, Hamburg, Germany.
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280
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Lyu S, Zhong S, Luo Y, Yan S, Ran H, Duan M, Song K, Ye K, Miao H, Hu Y, Song Z, Lai S, Zhang Y, He J, Zhu Y, Jia Y. Effects of virtual reality-based cognitive training for adolescents with depressive episodes: A pilot randomized controlled study. Psychiatry Res 2024; 340:116144. [PMID: 39167866 DOI: 10.1016/j.psychres.2024.116144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/20/2024] [Accepted: 08/11/2024] [Indexed: 08/23/2024]
Abstract
Cognitive impairment is a common symptom in depression, yet few intervention strategies target adolescents. This study investigated the effects of an attention and working memory cognitive training system based on virtual reality (VRCT) in adolescents with mild to moderate depressive episodes. Adolescents with depression were randomized into a VR training group (VRG, n = 47) or a waitlist control group (WT, n = 46). The VR training consisted of three 10-min tasks per session, conducted three sessions per week for 20 sessions over 7 weeks. Forty-four healthy adolescents participated as a comparison group for baseline cognitive assessment. Cognitive functions and depressive symptoms were assessed using the Das-Naglieri cognitive assessment system, driven by the Planning, Attention, Simultaneous, and Successive (PASS) processing theory, and the Hamilton Depression Rating Scale-24 at pre- and post-intervention. Baseline results indicated significantly lower cognitive scores in patients compared to healthy adolescents. Post-intervention, the VRG demonstrated significant improvements in all four cognitive scales (effect sizes 0.56 to 0.76) and a significant reduction in depressive symptoms compared to the WT. These findings suggest that VRCT holds potential for improving cognitive impairments and alleviating depressive symptoms in adolescents with depression. Further large-scale and follow-up studies are necessary to confirm long-term benefits.
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Affiliation(s)
- Sihui Lyu
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Shuming Zhong
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Yange Luo
- School of Management, Jinan University, Guangzhou 510630, China
| | - Shuya Yan
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Hanglin Ran
- School of Management, Jinan University, Guangzhou 510630, China
| | - Manying Duan
- School of Management, Jinan University, Guangzhou 510630, China
| | - Kailin Song
- School of Management, Jinan University, Guangzhou 510630, China
| | - Kaiwei Ye
- School of Management, Jinan University, Guangzhou 510630, China
| | - Haofei Miao
- School of Management, Jinan University, Guangzhou 510630, China
| | - Yilei Hu
- School of Management, Jinan University, Guangzhou 510630, China
| | - Zijin Song
- School of Management, Jinan University, Guangzhou 510630, China
| | - Shunkai Lai
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Yiliang Zhang
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Jiali He
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Yunxia Zhu
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Yanbin Jia
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou 510630, China.
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281
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Han Z, Wang B, Wen YQ, Li YN, Feng CX, Ding XS, Shen Y, Yang Q, Gao L. Acteoside alleviates lipid peroxidation by enhancing Nrf2-mediated mitophagy to inhibit ferroptosis for neuroprotection in Parkinson's disease. Free Radic Biol Med 2024; 223:493-505. [PMID: 39048340 DOI: 10.1016/j.freeradbiomed.2024.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/30/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
Increasing evidence underscores the pivotal role of ferroptosis in Parkinson's Disease (PD) pathogenesis. Acteoside (ACT) has been reported to possess neuroprotective properties. However, the effects of ACT on ferroptosis and its molecular mechanisms remain unknown. This study aimed to explore whether ACT can regulate ferroptosis in dopaminergic (DA) neurons within both in vitro and in vivo PD models and to elucidate the underlying regulatory mechanisms. PD models were established and treated with various concentrations of ACT. Cell viability assays, Western blot, lipid peroxidation assessments, immunohistochemistry, and transmission electron microscopy were employed to confirm ACT's inhibition of ferroptosis and its protective effect on DA neurons across PD models. Immunofluorescence staining, MitoSOX staining, and confocal laser scanning microscopy further validated ACT's regulation regulatory effects on ferroptosis via the Nrf2-mitophagy pathway. Four animal behavioral tests were used to assess behavioral improvements in PD animals. ACT inhibited ferroptosis in PD models in vitro, as evidenced by increased cell viability, the upregulation of GPX4 and SLC7A11, reduced lipid peroxides, and attenuation of mitochondrial morphological alterations typical of ferroptosis. By activating the Nrf2-mitophagy axis, ACT enhanced mitochondrial integrity and reduced lipid peroxidation, mitigating ferroptosis. These in vitro results were consistent with in vivo findings, where ACT treatment significantly preserved DA neurons, curbed ferroptosis in these cells, and alleviated cognitive and behavioral deficits. This study is the first demonstration of ACT's capability to inhibit neuronal ferroptosis and protect DA neurons, thus alleviating behavioral and cognitive impairments in both in vitro and in vivo PD models. Furthermore, The suppression of ferroptosis by ACT is achieved through the activation of the Nrf2-mitophagy signaling pathway. Our results show that ACT is beneficial for both treating and preventing PD. They also offer novel therapeutic options for treating PD and molecular targets for regulating ferroptosis.
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Affiliation(s)
- Zheng Han
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China; Department of Neurosurgery, 967th Hospital of the PLA Joint Logistic Support Force, Dalian, Liaoning Province, 116021, China
| | - Bao Wang
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China; Center for Frontier Medicine Innovation, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China
| | - Yu-Qi Wen
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China
| | - Yang-Ni Li
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China
| | - Chen-Xi Feng
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China
| | - Xv-Shen Ding
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China
| | - Yun Shen
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China
| | - Qian Yang
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China.
| | - Li Gao
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, China.
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282
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Varangot-Reille C, Pezzulo G, Thacker M. The fear-avoidance model as an embodied prediction of threat. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2024; 24:781-792. [PMID: 38890209 DOI: 10.3758/s13415-024-01199-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/24/2024] [Indexed: 06/20/2024]
Abstract
The fear-avoidance model is a well-established framework in the understanding of persistent pain. It proposes a dichotomous path: either the context is interpreted as safe; there is no fear reaction and, therefore, the individual engages in active (positive) coping; or the context is interpreted as threatening, leading to a self-reinforcing vicious circle of fear and (negative) avoidance. We propose an embodied interpretation of this phenomenon employing the joint framework of predictive coding and active inference. The key idea is that multisensory integration of exteroceptive, proprioceptive, and interoceptive sensory inputs can lead to dysfunctional experiences of threat in nonthreatening situations. Threat inference can promote fear responses, maladaptive strategies (i.e., avoidance) and self-provides evidence for threat in associated or future contexts, or both. Under this treatment, the prediction of nonrealized threat becomes self-evidencing and context-invariant, and hence self-perpetuating. Safety cues are unable to attenuate the interpretation of the negative context as the dominant inference of the context is threatful and gains more precision and becomes resistant over time. Our model provides an explanation for the emergence of a dysfunctional fear response in the clinical setting despite apparent safety based on modern concepts from theoretical (computational) neuroscience.
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Affiliation(s)
- Clovis Varangot-Reille
- MSc Statistics and Computer Science for Data Science, University Lumière Lyon 2, Bron, France.
| | - Giovanni Pezzulo
- Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy
| | - Mick Thacker
- Department of Physiotherapy, Royal College of Surgeons in Ireland, Dublin, Ireland
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283
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Hilton BJ, Griffin JM, Fawcett JW, Bradke F. Neuronal maturation and axon regeneration: unfixing circuitry to enable repair. Nat Rev Neurosci 2024; 25:649-667. [PMID: 39164450 DOI: 10.1038/s41583-024-00849-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2024] [Indexed: 08/22/2024]
Abstract
Mammalian neurons lose the ability to regenerate their central nervous system axons as they mature during embryonic or early postnatal development. Neuronal maturation requires a transformation from a situation in which neuronal components grow and assemble to one in which these components are fixed and involved in the machinery for effective information transmission and computation. To regenerate after injury, neurons need to overcome this fixed state to reactivate their growth programme. A variety of intracellular processes involved in initiating or sustaining neuronal maturation, including the regulation of gene expression, cytoskeletal restructuring and shifts in intracellular trafficking, have been shown to prevent axon regeneration. Understanding these processes will contribute to the identification of targets to promote repair after injury or disease.
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Affiliation(s)
- Brett J Hilton
- Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, British Columbia, Canada.
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Jarred M Griffin
- Laboratory for Axonal Growth and Regeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - James W Fawcett
- Department of Clinical Neurosciences, John van Geest Centre for Brain Repair, University of Cambridge, Cambridge, UK.
- Centre for Reconstructive Neuroscience, Institute for Experimental Medicine Czech Academy of Science (CAS), Prague, Czechia.
| | - Frank Bradke
- Laboratory for Axonal Growth and Regeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
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284
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Hu Z, Li J, Jacob A, Wang P. Harnessing extracellular cold-inducible RNA binding protein by PS-OMe miR130: A promising shield against hemorrhage-induced lung injury. J Trauma Acute Care Surg 2024; 97:581-589. [PMID: 38685193 DOI: 10.1097/ta.0000000000004361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
INTRODUCTION Hemorrhagic shock (HS) poses a life-threatening condition with the lungs being one of the most susceptible organs to its deleterious effects. Extracellular cold-inducible RNA binding protein has emerged as a pivotal mediator of inflammation, and its release has been observed as a case of HS-induced tissue injury. Previous studies unveiled a promising engineered microRNA, designated PS-OMe miR130, which inhibits extracellular cold-inducible RNA binding protein, thereby safeguarding vital organs. In this study, we hypothesized that PS-OMe miR130 serves as a protective shield against HS-induced lung injury by curtailing the overzealous inflammatory immune response. METHODS Hemorrhagic shock was induced in male C57BL6 mice by withdrawing blood via a femoral artery cannula to a mean arterial pressure of 30 mm Hg for 90 minutes. The mice were resuscitated with twice the shed blood volume with Ringer's lactate solution. They were then treated intravenously with either phosphate-buffered saline (vehicle) or 62.5 nmol PS-OMe miR130. At 4 hours later, blood and lungs were harvested. RESULTS Following PS-OMe miR130 treatment in HS mice, a substantial decrease was observed in serum injury markers including aspartate aminotransferase, alanine transaminase, lactate dehydrogenase, and blood urea nitrogen. Serum interleukin (IL)-6 exhibited a similar reduction. In lung tissues, PS-OMe miR130 led to a significant decrease in the messenger RNA expressions of pro-inflammatory cytokines (IL-6, IL-1β, and tumor necrosis factor α), chemokines (keratinocyte-derived chemokine and macrophage inflammatory protein 2), and an endothelial injury marker, E-selectin. PS-OMe miR130 also produced substantial inhibition of lung myeloperoxidase activity and resulted in a marked reduction in lung injury as evidenced by histological evaluation. This was further confirmed by the observation that PS-OMe miR130 significantly reduced the presence of lymphocyte antigen 6 family member G-positive neutrophils and terminal deoxynucleotidyl transferase dUTP nick end labeling-positive apoptotic cells. CONCLUSION PS-OMe miR130 emerges as a potent safeguard against HS-induced lung injury by effectively inhibiting pro-inflammation and injuries, offering a promising therapeutic strategy in such critical clinical condition.
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Affiliation(s)
- Zhijian Hu
- From the Center for Immunology and Inflammation (Z.H., J.L., A.J., P.W.), Feinstein Institutes for Medical Research; and Departments of Surgery (A.J., P.W.) and Molecular Medicine (A.J., P.W.), Zucker School of Medicine at Hofstra/Northwell, Manhasset, New York
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285
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Wang G, Li Q, Liu S, Li M, Liu B, Zhao T, Liu B, Chen Z. An injectable decellularized extracellular matrix hydrogel with cortical neuron-derived exosomes enhances tissue repair following traumatic spinal cord injury. Mater Today Bio 2024; 28:101250. [PMID: 39318371 PMCID: PMC11421349 DOI: 10.1016/j.mtbio.2024.101250] [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: 04/11/2024] [Revised: 07/11/2024] [Accepted: 09/13/2024] [Indexed: 09/26/2024] Open
Abstract
Traumatic spinal cord injury (SCI), known for its limited intrinsic regeneration capacity, often results in considerable neurological impairment. Studies suggest that therapeutic techniques utilizing exosomes (Exo) to promote tissue regeneration and modulate immune responses are promising for SCI treatment. However, combining exosome therapy with biomaterials for SCI treatment is not very effective. This study developed an adhesive hydrogel using exosomes secreted by cortical neurons derived from human induced pluripotent stem cells (iPSCs) and decellularized extracellular matrix (dECM) from human umbilical cord mesenchymal stem cells (hUCMSCs) to enhance motor function recovery post-SCI. In vitro assessments demonstrated the excellent cytocompatibility of the dECM hydrogel. Additionally, the Exo-dECM hydrogel facilitated the polarization of early M2 macrophages, reduced neuronal apoptosis, and established a pro-regenerative microenvironment in a rodent SCI model. Subsequent analyses revealed significant activation of endogenous neural stem cells and promotion of axon regeneration and remyelination at eight weeks post-surgery. The Exo-dECM hydrogel also promoted the functional recovery and preservation of urinary tissue in SCI-afflicted rats. These findings highlighted that the Exo-dECM hydrogel is a promising therapeutic strategy for treating SCI.
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Affiliation(s)
- Gang Wang
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
| | - Qian Li
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Sumei Liu
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
| | - Mo Li
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
| | - Baoguo Liu
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
| | - Tianyao Zhao
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
| | - Bochao Liu
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
| | - Zhiguo Chen
- Cell Therapy Center, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, 100053, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
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Gallardo-Ortíz IA, Oros-González A, Rodríguez-Manzo G, Garduño-Gutiérrez R, Aragón-Martínez A, Páez-Martínez N. Effect of exercise duration on toluene-induced locomotor sensitization in mice: a focus on the Renin Angiotensin System. Psychopharmacology (Berl) 2024; 241:2157-2170. [PMID: 38839630 DOI: 10.1007/s00213-024-06626-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 05/23/2024] [Indexed: 06/07/2024]
Abstract
RATIONALE Exercise attenuates addictive behavior; however, little is known about the contribution of exercise duration to this positive effect. The Renin Angiotensin System (RAS) has been implicated both in addictive responses and in the beneficial effects of exercise; though, its role in the advantageous effects of exercise on toluene-induced addictive responses has not been explored. OBJECTIVES To evaluate the impact of different exercise regimens in mitigating the expression of toluene-induced locomotor sensitization and to analyze changes in RAS elements' expression at the mesocorticolimbic system after repeated toluene exposure and following voluntary wheel running in toluene-sensitized animals. METHODS Toluene-induced addictive-like response was evaluated with a locomotor sensitization model in mice. Toluene-sensitized animals had access to running wheels 1, 2, 4 or 24 h/day for 4 weeks; thereafter, locomotor sensitization expression was evaluated after a toluene challenge. RAS elements (ACE and ACE2 enzymes; AT1, AT2 and Mas receptors) expression was determined by Western blot in the VTA, NAc and PFCx of toluene-sensitized mice with and without exercise. RESULTS Individual differences in toluene-induced locomotor sensitization development were observed. Access to wheel running 1 and 2 h/day reduced but 4 and 24 h/day completely blocked locomotor sensitization expression. Repeated toluene exposure changed RAS elements' expression in the VTA, NAc and PFCx, while exercise mainly modified ACE and AT1 in air-exposed and toluene-sensitized mice. CONCLUSIONS Inhalant-exposed animals show different sensitization phenotypes. Exercise duration determined its efficacy to attenuate the addictive-like response. Toluene exposure and exercise each modified RAS, the latter also modifying toluene-induced changes.
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Affiliation(s)
- Itzell A Gallardo-Ortíz
- Unidad de Biomedicina, Carrera de Enfermería, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de México, México
| | - Alain Oros-González
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, México
| | - Gabriela Rodríguez-Manzo
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Sede Sur, Ciudad de México, México
| | - René Garduño-Gutiérrez
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Sede Sur, Ciudad de México, México
| | - Andrés Aragón-Martínez
- Unidad de Biomedicina, Carrera de Biología, Laboratorio de Gametos y Desarrollo Tecnológico, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de México, México
| | - Nayeli Páez-Martínez
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, México.
- Laboratorio Integrativo para el Estudio de Sustancias Inhalables Adictivas, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría "Ramón de la Fuente Muñiz", Ciudad de México, México.
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Sinakevitch IT, McDermott KE, Gray DT, Barnes CA. A combined MRI, histological and immunohistochemical rendering of the rhesus macaque locus coeruleus (LC) enables the differentiation of three distinct LC subcompartments. J Chem Neuroanat 2024; 140:102449. [PMID: 39084478 PMCID: PMC11392618 DOI: 10.1016/j.jchemneu.2024.102449] [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: 05/22/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 08/02/2024]
Abstract
Locus coeruleus (LC) neurons send their noradrenergic axons across multiple brain regions, including neocortex, subcortical regions, and spinal cord. Many aspects of cognition are known to be dependent on the noradrenergic system, and it has been suggested that dysfunction in this system may play central roles in cognitive decline associated with both normative aging and neurodegenerative disease. While basic anatomical and biochemical features of the LC have been examined in many species, detailed characterizations of the structure and function of the LC across the lifespan are not currently available. This includes the rhesus macaque, which is an important model of human brain function because of their striking similarities in brain architecture and behavioral capacities. In the present study, we describe a method to combine structural MRI, Nissl, and immunofluorescent histology from individual monkeys to reconstruct, in 3 dimensions, the entire macaque LC nucleus. Using these combined methods, a standardized volume of the LC was determined, and high-resolution confocal images of tyrosine hydroxylase-positive neurons were mapped into this volume. This detailed representation of the LC allows definitions to be proposed for three distinct subnuclei, including a medial region and a lateral region (based on location with respect to the central gray, inside or outside, respectively), and a compact region (defined by densely packed neurons within the medial compartment). This enabled the volume to be estimated and cell density to be calculated independently in each LC subnucleus for the first time. This combination of methods should allow precise characterization of the LC and has the potential to do the same for other nuclei with distinct molecular features.
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Affiliation(s)
- Irina T Sinakevitch
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ 85721, United States.
| | - Kelsey E McDermott
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ 85721, United States.
| | - Daniel T Gray
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, United States.
| | - Carol A Barnes
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ 85721, United States; Departments of Psychology, Neurology and Neuroscience, University of Arizona, Tucson, AZ 85721, United States.
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288
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Helli B, Navabi SP, Hosseini SA, Sabahi A, Khorsandi L, Amirrajab N, Mahdavinia M, Rahmani S, Dehghani MA. The Protective Effects of Syringic Acid on Bisphenol A-Induced Neurotoxicity Possibly Through AMPK/PGC-1α/Fndc5 and CREB/BDNF Signaling Pathways. Mol Neurobiol 2024; 61:7767-7784. [PMID: 38430353 DOI: 10.1007/s12035-024-04048-0] [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: 09/06/2023] [Accepted: 02/06/2024] [Indexed: 03/03/2024]
Abstract
Bisphenol A (BPA), an endocrine disruptor, is commonly used to produce epoxy resins and polycarbonate plastics. Continuous exposure to BPA may contribute to the development of diseases in humans and seriously affect their health. Previous research suggests a significant relationship between the increased incidence of neurological diseases and the level of BPA in the living environment. Syringic acid (SA), a natural derivative of gallic acid, has recently considered much attention due to neuromodulator activity and its anti-oxidant, anti-apoptotic, and anti-inflammatory effects. Therefore, in this study, we aimed to investigate the effects of SA on oxidative stress, apoptosis, memory and locomotor disorders, and mitochondrial function, and to identify the mechanisms related to Alzheimer's disease (AD) in the brain of rats receiving high doses of BPA. For this purpose, male Wistar rats received BPA (50, 100, and 200 mg/kg) and SA (50 mg/kg) for 21 days. The results showed that BPA exposure significantly altered the rats' neurobehavioral responses. Additionally, BPA, by increasing the level of ROS, and MDA level, increased the level of oxidative stress while reducing the level of antioxidant enzymes, such as SOD, CAT, GPx, and mitochondrial GSH. The administration of BPA at 200 mg/kg significantly decreased the expression of ERRα, TFAM, irisin, PGC-1α, Bcl-2, and FNDC5, while it increased the expression of TrkB, cytochrome C, caspase 3, and Bax. Moreover, the Western blotting results showed that BPA increased the levels of P-AMPK, GSK3b, p-tau, and Aβ, while it decreased the levels of PKA, P-PKA, Akt, BDNF, CREB, P-CREB, and PI3K. Meanwhile, SA at 50 mg/kg reversed the behavioral, biochemical, and molecular changes induced by high doses of BPA. Overall, BPA could lead to the development of AD by affecting the mitochondria-dependent apoptosis pathway, as well as AMPK/PGC-1α/FNDC5 and CREB/BDNF/TrkB signaling pathways, and finally, by increasing the expression of tau and Aβ proteins. In conclusion, SA, as an antioxidant, significantly reduced the toxicity of BPA.
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Affiliation(s)
- Bizhan Helli
- Nutrition and Metabolic Disease Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyedeh Parisa Navabi
- Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Ahmad Hosseini
- Nutrition and Metabolic Disease Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Sabahi
- Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Layasadat Khorsandi
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nasrin Amirrajab
- Department of Laboratory Sciences' School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masoud Mahdavinia
- Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sohrab Rahmani
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Amin Dehghani
- Nutrition and Metabolic Disease Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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289
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Wang S, Li Z, Liu X, Fan S, Wang X, Chang J, Qin L, Zhao P. Repeated postnatal sevoflurane exposure impairs social recognition in mice by disrupting GABAergic neuronal activity and development in hippocampus. Br J Anaesth 2024; 133:810-822. [PMID: 39142987 DOI: 10.1016/j.bja.2024.05.047] [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: 03/20/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND Repeated exposure to sevoflurane during early developmental stages is a risk factor for social behavioural disorders, but the underlying neuropathological mechanisms remain unclear. As the hippocampal cornu ammonis area 2 subregion (CA2) is a critical centre for social cognitive functions, we hypothesised that sevoflurane exposure can lead to social behavioural disorders by disrupting neuronal activity in the CA2. METHODS Neonatal mice were anaesthetised with sevoflurane 3 vol% for 2 h on postnatal day (PND) 6, 8, and 10. Bulk RNA sequencing of CA2 tissue was conducted on PND 12. Social cognitive function was assessed by behavioural experiments, and in vivo CA2 neuronal activity was recorded by multi-channel electrodes on PND 60-65. RESULTS Repeated postnatal exposure to sevoflurane impaired social novelty recognition in adulthood. It also caused a decrease in the synchronisation of neuronal spiking, gamma oscillation power, and spike phase-locking between GABAergic spiking and gamma oscillations in the CA2 during social interaction. After sevoflurane exposure, we observed a reduction in the density and dendritic complexity of CA2 GABAergic neurones, and decreased expression of transcription factors critical for GABAergic neuronal development after. CONCLUSIONS Repeated postnatal exposure to sevoflurane disturbed the development of CA2 GABAergic neurones through downregulation of essential transcription factors. This resulted in impaired electrophysiological function in adult GABAergic neurones, leading to social recognition deficits. These findings reveal a potential electrophysiological mechanism underlying the long-term social recognition deficits induced by sevoflurane and highlight the crucial role of CA2 GABAergic neurones in social interactions.
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Affiliation(s)
- Shuai Wang
- Department of Anaesthesiology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Zijie Li
- School of Life Sciences, China Medical University, Shenyang, People's Republic of China
| | - Xin Liu
- Department of Breast Surgery, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital & Institute, Shenyang, People's Republic of China
| | - Shiyue Fan
- Department of Anaesthesiology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xuejiao Wang
- School of Life Sciences, China Medical University, Shenyang, People's Republic of China
| | - Jianjun Chang
- School of Life Sciences, China Medical University, Shenyang, People's Republic of China
| | - Ling Qin
- School of Life Sciences, China Medical University, Shenyang, People's Republic of China.
| | - Ping Zhao
- Department of Anaesthesiology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China.
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290
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Hu S, Tang Y, Li X, Li W, Zeng Y, Jiang M, Chen R, Zheng P, Yang L, Song Z, Xie D, Chen Y, Yuan Y. Hsp90aa1/JUN/Ccl2 regulatory axis mediates migration and differentiation of NSPCs, promoting the onset and progression of early post-ischemic stroke epilepsy. Neurobiol Dis 2024; 200:106635. [PMID: 39128813 DOI: 10.1016/j.nbd.2024.106635] [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: 01/27/2024] [Revised: 08/07/2024] [Accepted: 08/08/2024] [Indexed: 08/13/2024] Open
Abstract
Early-onset epilepsy following ischemic stroke is a severe neurological condition, the pathogenesis of which remains incompletely understood. Recent studies suggest that Neural stem/progenitor cells (NSPCs) play a crucial role in the disease process, yet the precise molecular mechanisms regulating NSPCs have not been thoroughly investigated. This study utilized single-cell transcriptome sequencing and bioinformatics analysis to identify disease-related genes, which were subsequently validated in both in vitro and in vivo experiments. The findings revealed that Hsp90aa1 (heat shock protein 90 kDa alpha, class A member 1), Jun proto-oncogene (JUN), and CC Motif Ligation 2 (Ccl2) constitute an important regulatory axis influencing the migration and differentiation of NSPCs, potentially impacting the onset and progression of early-onset epilepsy post-ischemic stroke. Additionally, the expression of Hsp90aa1 was found to influence the likelihood of seizure occurrence and the severity of brain ischemia.
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Affiliation(s)
- Shuntong Hu
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yongzhong Tang
- Department of Anesthesiology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaobo Li
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Wenjun Li
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yini Zeng
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Mi Jiang
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China; Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Ru Chen
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ping Zheng
- Department of Neurosurgery, Shanghai Pudong New Area People's Hospital, Shanghai, China
| | - Liang Yang
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhi Song
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Dujie Xie
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China.
| | - Yiwei Chen
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China.
| | - Yi Yuan
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China.
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291
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Strijbos BTM, Janssen L, Voogd AC, Zwaans WAR, Roumen RMH, Maaskant-Braat AJG. Persistent Pain After Breast Cancer Treatment, an Underreported Burden for Breast Cancer Survivors. Ann Surg Oncol 2024; 31:6753-6763. [PMID: 38940899 PMCID: PMC11413048 DOI: 10.1245/s10434-024-15682-2] [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: 09/05/2023] [Accepted: 06/12/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Many patients who have undergone surgery experience persistent pain after breast cancer treatment (PPBCT). These symptoms often remain unnoticed by treating physician(s), and the pathophysiology of PPBCT remains poorly understood. The purpose of this study was to determine prevalence of PPBCT and examine the association between PPBCT and various patient, tumor, and treatment characteristics. PATIENTS AND METHODS We conducted a questionnaire-based cross-sectional study enrolling patients with breast cancer treated at Máxima Medical Center between 2005 and 2016. PPBCT was defined as pain in the breast, anterior thorax, axilla, and/or medial upper arm that persists for at least 3 months after surgery. Tumor and treatment characteristics were derived from the Dutch Cancer Registry and electronic patient files. RESULTS Between February and March 2019, a questionnaire was sent to 2022 women, of whom 56.5% responded. Prevalence of PPBCT among the responders was 37.9%, with 50.8% reporting moderate to severe pain. Multivariable analyses showed that women with signs of anxiety, depression or a history of smoking had a higher risk of experiencing PPBCT. Women aged 70 years or older at diagnosis were significantly less likely to report PPBCT compared with younger women. No significant association was found between PPBCT and treatment characteristics, including type of axillary surgery and radiotherapy. CONCLUSIONS A considerable percentage of patients with breast cancer experience PPBCT. Women with signs of anxiety or depression and women with a history of smoking are more likely to report PPBCT. Further research is required to understand the underlying etiology and to improve prevention and treatment strategies for PPBCT.
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Affiliation(s)
- Bo T M Strijbos
- Department of Surgical Oncology, Máxima Medical Center, Veldhoven, The Netherlands.
| | - Loes Janssen
- Department of Surgical Oncology, Máxima Medical Center, Veldhoven, The Netherlands
| | - Adri C Voogd
- Department of Epidemiology, Maastricht University, Maastricht, The Netherlands
| | - Willem A R Zwaans
- Department of Surgical Oncology, Máxima Medical Center, Veldhoven, The Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Rudi M H Roumen
- Department of Surgical Oncology, Máxima Medical Center, Veldhoven, The Netherlands
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Najafzadeh M, Saeeidian‐Mehr A, Akbari‐Lalimi H, Ganji Z, Nasseri S, Zare H, Ferini‐Strambi L. Surface-Based Morphometry Analysis of the Cerebral Cortex in Patients With Probable Idiopathic Rapid Eye Movement Sleep Behavior Disorder. Brain Behav 2024; 14:e70057. [PMID: 39344375 PMCID: PMC11440017 DOI: 10.1002/brb3.70057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/19/2024] [Accepted: 08/30/2024] [Indexed: 10/01/2024] Open
Abstract
INTRODUCTION Strong indications support the notion that idiopathic rapid eye movement (REM) sleep behavior disorder (iRBD) acts as a precursor to multiple α-synucleinopathies, including Parkinson's disease and dementia with Lewy bodies. Despite numerous investigations into the alterations in cortical thickness and the volume of subcortical areas associated with this condition, comprehensive studies on the cortical surface morphology, focusing on gyrification and sulcal depth changes, are scarce. The purpose of this research was to explore the cortical surface morphology in individuals with probable iRBD (piRBD), to pinpoint early-phase diagnostic markers. METHODS This study included 30 piRBD patients confirmed using the RBD Screening Questionnaire (RBDSQ) and 33 control individuals selected from the Parkinson's Progression Markers Initiative (PPMI) database. They underwent neurophysiological tests and MRI scans. The FreeSurfer software was utilized to estimate cortical thickness (CTH), cortical and subcortical volumetry, local gyrification index (LGI), and sulcus depth (SD). Subsequently, these parameters were compared between the two groups. Additionally, linear correlation analysis was employed to estimate the relationship between brain morphological parameters and clinical parameters. RESULTS Compared to the healthy control (HC), piRBD patients exhibited a significant reduction in CTH, LGI, and cortical volume in the bilateral superior parietal, lateral occipital, orbitofrontal, temporo-occipital, bilateral rostral middle frontal, inferior parietal, and precentral brain regions. Moreover, a significant and notable correlation was observed between CTH and Geriatric Depression Scale (GDS), letter-number sequencing (LTNS), the Benton Judgment of Line Orientation (BJLO) test, and the symbol digit modalities test (SDMT) in several brain regions encompassing the motor cortex. CONCLUSION Patients with piRBD displayed widespread atrophy in various brain regions, predominantly covering the motor and sensory cortex. Furthermore, LGI could serve as a prognostic biomarker of disease's progression in piRBD.
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Affiliation(s)
- Milad Najafzadeh
- Department of Medical Physics, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
| | - Athareh Saeeidian‐Mehr
- Department of Radiology, Faculty of Para‐MedicineHormozgan University of Medical SciencesBandar AbbasIran
| | - Hossein Akbari‐Lalimi
- Department of Medical Physics, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
| | - Zohre Ganji
- Department of Medical Physics, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
| | - Shahrokh Nasseri
- Department of Medical Physics, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
- Medical Physics Research CenterMashhad University of Medical SciencesMashhadIran
| | - Hoda Zare
- Department of Medical Physics, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
- Medical Physics Research CenterMashhad University of Medical SciencesMashhadIran
| | - Luigi Ferini‐Strambi
- Vita‐Salute San Raffaele UniversityMilanItaly
- Division of Neuroscience, Sleep Disorders CenterSan Raffaele Scientific InstituteMilanItaly
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293
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Isaac AR, Chauvet MG, Lima-Filho R, Wagner BDA, Caroli BG, Leite REP, Suemoto CK, Nunes PV, De Felice FG, Ferreira ST, Lourenco MV. Defective regulation of the eIF2-eIF2B translational axis underlies depressive-like behavior in mice and correlates with major depressive disorder in humans. Transl Psychiatry 2024; 14:397. [PMID: 39349438 PMCID: PMC11442801 DOI: 10.1038/s41398-024-03128-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 09/18/2024] [Accepted: 09/24/2024] [Indexed: 10/02/2024] Open
Abstract
Major depressive disorder (MDD) is a significant cause of disability in adults worldwide. However, the underlying causes and mechanisms of MDD are not fully understood, and many patients are refractory to available therapeutic options. Impaired control of brain mRNA translation underlies several neurodevelopmental and neurodegenerative conditions, including autism spectrum disorders and Alzheimer's disease (AD). Nonetheless, a potential role for mechanisms associated with impaired translational control in depressive-like behavior remains elusive. A key pathway controlling translation initiation relies on the phosphorylation of the α subunit of eukaryotic initiation factor 2 (eIF2α-P) which, in turn, blocks the guanine exchange factor activity of eIF2B, thereby reducing global translation rates. Here we report that the expression of EIF2B5 (which codes for eIF2Bε, the catalytic subunit of eIF2B) is reduced in postmortem MDD prefrontal cortex from two distinct human cohorts and in the frontal cortex of social isolation-induced depressive-like behavior model mice. Further, pharmacological treatment with anisomycin or with salubrinal, an inhibitor of the eIF2α phosphatase GADD34, induces depressive-like behavior in adult C57BL/6J mice. Salubrinal-induced depressive-like behavior is blocked by ISRIB, a compound that directly activates eIF2B regardless of the phosphorylation status of eIF2α, suggesting that increased eIF2α-P promotes depressive-like states. Taken together, our results suggest that impaired eIF2-associated translational control may participate in the pathophysiology of MDD, and underscore eIF2-eIF2B translational axis as a potential target for the development of novel approaches for MDD and related mood disorders.
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Affiliation(s)
- Alinny R Isaac
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Multidisciplinary Research Core in Biology (NUMPEX-BIO), Campus Duque de Caxias Professor Geraldo Cidade, Federal University of Rio de Janeiro, Duque de Caxias, RJ, Brazil
| | - Mariana G Chauvet
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ricardo Lima-Filho
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Beatriz de A Wagner
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Bruno G Caroli
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Renata E P Leite
- Department of Pathology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Claudia K Suemoto
- Division of Geriatrics, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Paula Villela Nunes
- Department of Psychiatry, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Fernanda G De Felice
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Centre for Neuroscience Studies, Department of Biomedical and Molecular Sciences & Department of Psychiatry, Queen's University, Kingston, ON, Canada
- D'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil
| | - Sergio T Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- D'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Mychael V Lourenco
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
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294
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Yagita K, Honda H, Ohara T, Koyama S, Noguchi H, Oda Y, Yamasaki R, Isobe N, Ninomiya T. Association between hypothalamic Alzheimer's disease pathology and body mass index: The Hisayama study. Neuropathology 2024; 44:388-400. [PMID: 38566440 DOI: 10.1111/neup.12974] [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: 12/03/2023] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 04/04/2024]
Abstract
The hypothalamus is the region of the brain that integrates the neuroendocrine system and whole-body metabolism. Patients with Alzheimer's disease (AD) have been reported to exhibit pathological changes in the hypothalamus, such as neurofibrillary tangles (NFTs) and amyloid plaques (APs). However, few studies have investigated whether hypothalamic AD pathology is associated with clinical factors. We investigated the association between AD-related pathological changes in the hypothalamus and clinical pictures using autopsied brain samples obtained from deceased residents of a Japanese community. A total of 85 autopsied brain samples were semi-quantitatively analyzed for AD pathology, including NFTs and APs. Our histopathological studies showed that several hypothalamic nuclei, such as the tuberomammillary nucleus (TBM) and lateral hypothalamic area (LHA), are vulnerable to AD pathologies. NFTs are observed in various neuropathological states, including normal cognitive cases, whereas APs are predominantly observed in AD. Regarding the association between hypothalamic AD pathologies and clinical factors, the degree of APs in the TBM and LHA was associated with a lower body mass index while alive, after adjusting for sex and age at death. However, we found no significant association between hypothalamic AD pathology and the prevalence of hypertension, diabetes, or dyslipidemia. Our study showed that a lower BMI, which is a poor prognostic factor of AD, might be associated with hypothalamic AP pathology and highlighted new insights regarding the disruption of the brain-whole body axis in AD.
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Affiliation(s)
- Kaoru Yagita
- Department of Neurology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Honda
- Neuropathology Center, National Hospital Organization, Omuta National Hospital, Fukuoka, Japan
| | - Tomoyuki Ohara
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Sachiko Koyama
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hideko Noguchi
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryo Yamasaki
- Department of Neurology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noriko Isobe
- Department of Neurology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toshiharu Ninomiya
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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295
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Gundler C, Gottfried K, Wiederhold AJ, Ataian M, Wurlitzer M, Gewehr JE, Ückert F. Unlocking the Potential of Secondary Data for Public Health Research: Retrospective Study With a Novel Clinical Platform. Interact J Med Res 2024; 13:e51563. [PMID: 39353185 DOI: 10.2196/51563] [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: 08/03/2023] [Revised: 12/01/2023] [Accepted: 07/17/2024] [Indexed: 10/04/2024] Open
Abstract
BACKGROUND Clinical routine data derived from university hospitals hold immense value for health-related research on large cohorts. However, using secondary data for hypothesis testing necessitates adherence to scientific, legal (such as the General Data Protection Regulation, federal and state protection legislations), technical, and administrative requirements. This process is intricate, time-consuming, and susceptible to errors. OBJECTIVE This study aims to develop a platform that enables clinicians to use current real-world data for testing research and evaluate advantages and limitations at a large university medical center (542,944 patients in 2022). METHODS We identified requirements from clinical practitioners, conceptualized and implemented a platform based on the existing components, and assessed its applicability in clinical reality quantitatively and qualitatively. RESULTS The proposed platform was established at the University Medical Center Hamburg-Eppendorf and made 639 forms encompassing 10,629 data elements accessible to all resident scientists and clinicians. Every day, the number of patients rises, and parts of their electronic health records are made accessible through the platform. Qualitatively, we were able to conduct a retrospective analysis of Parkinson disease over 777 patients, where we provide additional evidence for a significantly higher proportion of action tremors in patients with rest tremors (340/777, 43.8%) compared with those without rest tremors (255/777, 32.8%), as determined by a chi-square test (P<.001). Quantitatively, our findings demonstrate increased user engagement within the last 90 days, underscoring clinicians' increasing adoption of the platform in their regular research activities. Notably, the platform facilitated the retrieval of clinical data from 600,000 patients, emphasizing its substantial added value. CONCLUSIONS This study demonstrates the feasibility of simplifying the use of clinical data to enhance exploration and sustainability in scientific research. The proposed platform emerges as a potential technological and legal framework for other medical centers, providing them with the means to unlock untapped potential within their routine data.
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Affiliation(s)
- Christopher Gundler
- Institute for Applied Medical Informatics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karl Gottfried
- Institute for Applied Medical Informatics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Maximilian Ataian
- Institute for Applied Medical Informatics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marcus Wurlitzer
- Research Data Facility, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Erik Gewehr
- Research Data Facility, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frank Ückert
- Institute for Applied Medical Informatics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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296
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Li T, Sakthivelpathi V, Qian Z, Soetedjo R, Chung JH. Primate eye tracking with carbon-nanotube-paper-composite based capacitive sensors and machine learning algorithms. J Neurosci Methods 2024; 410:110249. [PMID: 39151657 PMCID: PMC11364525 DOI: 10.1016/j.jneumeth.2024.110249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 07/20/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
BACKGROUND Accurate real-time eye tracking is crucial in oculomotor system research. While the scleral search coil system is the gold standard, its implantation procedure and bulkiness pose challenges. Camera-based systems are affected by ambient lighting and require high computational and electric power. NEW METHOD This study presents a novel eye tracker using proximity capacitive sensors made of carbon-nanotube-paper-composite (CPC). These sensors detect femtofarad-level capacitance changes caused by primate corneal movement during horizontal and vertical eye rotations. Data processing and machine learning algorithms are evaluated to enhance the accuracy of gaze angle prediction. RESULTS The system performance is benchmarked against the scleral coil during smooth pursuits, saccades tracking, and fixations. The eye tracker demonstrates up to 0.97 correlation with the coil in eye tracking and is capable of estimating gaze angle with a median absolute error as low as 0.30°. COMPARISON The capacitive eye tracker demonstrates good consistency and accuracy in comparison to the gold-standard scleral search coil method. CONCLUSIONS This lightweight, non-invasive capacitive eye tracker offers potential as an alternative to traditional coil and camera-based systems in oculomotor research and vision science.
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Affiliation(s)
- Tianyi Li
- Mechanical Engineering, University of Washington, Seattle, WA 98195, USA
| | | | - Zhongjie Qian
- Mechanical Engineering, University of Washington, Seattle, WA 98195, USA
| | - Robijanto Soetedjo
- Department of Physiology and Biophysics, University of Washington, Seattle, WA 98195, USA; Washington National Primate Research Center, University of Washington, Seattle, WA 98195, USA
| | - Jae-Hyun Chung
- Mechanical Engineering, University of Washington, Seattle, WA 98195, USA.
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297
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Ahmed Amin S, Dawood MEA, Mahmoud M, Bassiouny DM, Moustafa MMA, Abd El Ghany K. Innovative Synthesis and Molecular Modeling of Actinomycetes-Derived Silver Nanoparticles for Biomedical Applications. Microb Pathog 2024:106990. [PMID: 39362288 DOI: 10.1016/j.micpath.2024.106990] [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: 01/04/2024] [Revised: 09/18/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
The rising demand for innovative antimicrobial solutions has shifted focus towards silver nanoparticles (AgNPs), especially those produced through eco-friendly methods. This study introduces a novel approach utilizing actinomycetes strains-Streptomyces albus, Micromonospora maris, and Arthrobacter crystallopoietes-to biosynthesize AgNPs with remarkable antibacterial properties. Through molecular characterization, we identified unique features of these nanoparticles, and computational modeling suggested significant ion-ligand interactions with proteins 6REV and 3K07. Our research highlights the promise of these biogenically synthesized nanoparticles in advancing biomedical applications. Actinomycetes were sourced and screened for their ability to produce metallic nanoparticles, revealing that among 35 samples, only six showed this capability. Notably, Streptomyces albus strain smmdk14 (OR685674), Micromonospora maris strain smmdk13 (OR685672), and Arthrobacter crystallopoietes strain smmdk12 (OR685674) were identified as effective silver nanoparticle producers. The synthesized nanoparticles demonstrated potent antibacterial activity against common pathogens including E. coli, Pseudomonas aeruginosa, Klebsiella spp., Enterococcus faecalis, Staphylococcus aureus, and Acinetobacter spp. The data obtained from color change observation, UV-visible spectrophotometry, Zeta potential, FTIR spectroscopy, and transmission electron microscopy (TEM) characterized AgNPs potentiality. The nanoparticles were spherical, with sizes ranging from 6.46 nm to 24.7 nm. Optimization of production conditions, comparison of antimicrobial effects with antibiotics, evaluation of potential toxicity, and assessment of wound-healing capabilities were also conducted. The biosynthesized AgNPs exhibited superior antibacterial properties compared to traditional antibiotics and significantly accelerated wound healing by approximately 66.4% in fibroblast cell cultures. Additionally, computational analysis predicted interactions between various metal ions and specific amino acid residues in proteins 6REV and 3K07. Overall, this study demonstrates the successful creation of AgNPs with notable antibacterial and wound-healing properties, underscoring their potential for medical applications.
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Affiliation(s)
- Safia Ahmed Amin
- Botany and Microbiology Department, Faculty of Science, Cairo University,.
| | - Mohamed E A Dawood
- Botany and Microbiology Department, Faculty of Science, Cairo University,. https://.org/0009-0008-6491-7519
| | - Mohamed Mahmoud
- Biophysics Department, Faculty of Science, Cairo University,. https://orcid.org/0009-0001-4497-0645
| | - Dina M Bassiouny
- Clinical Pathology Department, Faculty of Medicine, Cairo University,. https://orcid.org/0000-0002-8260-3459
| | - Mahmoud M A Moustafa
- Department of Genetics and Genetic Engineering, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt,. https://orcid.org/0000-0001-5392-052X
| | - Khalid Abd El Ghany
- Department of Microbiology, Egyptian Drug Authority, Cairo 11511, Egypt,. https://orcid.org/0000-0003-1915-4301
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298
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Pasupalak JK, Rajput P, Gupta GL. Gut Microbiota and Alzheimer's Disease: Exploring Natural Product Intervention and the Gut-Brain Axis for Therapeutic Strategies. Eur J Pharmacol 2024:177022. [PMID: 39362390 DOI: 10.1016/j.ejphar.2024.177022] [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: 07/11/2024] [Revised: 09/14/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
Numerous studies conducted over the last ten years have shown a strong correlation between the gut microbiota and the onset and progression of Alzheimer's disease (AD). However, the exact underlying mechanism is still unknown. An ongoing communication mechanism linking the gut and the brain is highlighted by the term "microbiota-gut-brain axis," which was originally coined the "gut-brain axis." Key metabolic, endocrine, neurological, and immunological mechanisms are involved in the microbiota‒gut‒brain axis and are essential for preserving brain homeostasis. Thus, the main emphasis of this review is how the gut microbiota contributes to the development of AD and how various natural products intervene in this disease. The first part of the review provides an outline of various pathways and relationships between the brain and gut microbiota, and the second part provides various mechanisms involved in the gut microbiota and AD. Finally, this review provides knowledge about natural products and their effectiveness in treating gut microbiota-induced AD. AD may be treated in the future by altering the gut microbiota with a customized diet, probiotics/prebiotics, plant products, and natural products. This entails altering the microbiological partners and products (such as amyloid protein) that these partners generate.
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Affiliation(s)
- Jajati K Pasupalak
- School of Pharmacy & Technology Management, SVKM'S NMIMS Deemed-to-be University, Shirpur, Maharashtra, 425405, India
| | - Prabha Rajput
- School of Pharmacy & Technology Management, SVKM'S NMIMS Deemed-to-be University, Shirpur, Maharashtra, 425405, India
| | - Girdhari Lal Gupta
- School of Pharmacy & Technology Management, SVKM'S NMIMS Deemed-to-be University, Shirpur, Maharashtra, 425405, India.
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299
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Kose S, Cinar E, Akyel H, Cakir-Aktas C, Tel BC, Karatas H, Kelicen-Ugur P. Cerliponase alfa decreases Aβ load and alters autophagy- related pathways in mouse hippocampal neurons exposed to fAβ 1-42. Life Sci 2024; 357:123105. [PMID: 39362589 DOI: 10.1016/j.lfs.2024.123105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/30/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
Extracellular aggregation of amyloid-beta (Aβ) in the brain plays a central role in the onset and progression of Alzheimer's disease (AD). Moreover, intraneuronal accumulation of Aβ via oligomer internalization might play an important role in the progression of AD. Deficient autophagy, which is a lysosomal degradation process, occurs during the early stages of AD. Tripeptidyl peptidase-1 (TPP1) functions as a lysosomal enzyme, and TPP1 gene mutations are associated with type 2 late infantile neuronal ceroid lipofuscinosis (LINCL). Nevertheless, there is little information about the role of TPP1 in the pathogenesis of AD; therefore, the present study aimed to measure the decrease in intraneuronal Aβ accumulation by a recombinant analog of the TPP1 enzyme, cerliponase alfa (CER) (Brineura®), and to determine whether autophagy pathways play a role in this decrease. In this study, endogenous Aβ accumulation was induced by fAβ1-42 (a toxic fragment of full-length Aβ) exposure, and mouse hippocampal neuronal cells (HT-22) were treated with CER (human recombinant rhTPP1 1 mg mL-1). Soluble Aβ, TPP1, and the proteins involved in autophagy, including mammalian target of rapamycin (p-mTOR/mTOR), p62/sequestosome-1 (p62/SQSTM1), and microtubule-associated protein 1 A/1B-light chain 3 (LC3), were evaluated using western blotting. The sirtuin-1, beclin-1, and Atg5 genes were also studied using RT-PCR. Aβ and TPP1 localizations were observed via immunocytochemistry. CER reduced the Aβ load in HT-22 cells by inducing TPP1 expression and converting pro-TPP1 into the mature form. Furthermore, exposure to CER and fAβ1-42 induced the autophagy-regulatory/related pathways in HT-22 cells and exposure to CER alone increased sirtuin-1 activity. Based on the present findings, we suggest that augmentation of TPP1 with enzyme replacement therapy may be a potential therapeutic option for the treatment of AD.
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Affiliation(s)
- Selma Kose
- Hacettepe University, Faculty of Pharmacy, Department of Pharmacology, Sihhiye, Ankara, Turkiye
| | - Elif Cinar
- Istanbul University-Cerrahpasa, Faculty of Pharmacy, Department of Pharmacology, Istanbul, Turkiye.
| | - Hilal Akyel
- Hacettepe University, Faculty of Pharmacy, Department of Pharmacology, Sihhiye, Ankara, Turkiye; Baskent University, Faculty of Pharmacy, Department of Pharmacology, Ankara, Turkiye
| | - Canan Cakir-Aktas
- Hacettepe University, Institute of Neurological Sciences and Psychiatry, Sihhiye, Ankara, Turkiye.
| | - Banu Cahide Tel
- Hacettepe University, Faculty of Pharmacy, Department of Pharmacology, Sihhiye, Ankara, Turkiye.
| | - Hulya Karatas
- Hacettepe University, Institute of Neurological Sciences and Psychiatry, Sihhiye, Ankara, Turkiye.
| | - Pelin Kelicen-Ugur
- Hacettepe University, Faculty of Pharmacy, Department of Pharmacology, Sihhiye, Ankara, Turkiye.
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300
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Karaküçük-İyidoğan A, Başaran E, Tatar-Yılmaz G, Oruç-Emre EE. Development of new chiral 1,2,4-triazole-3-thiones and 1,3,4-thiadiazoles with promising in vivo anticonvulsant activity targeting GABAergic system and voltage-gated sodium channels (VGSCs). Bioorg Chem 2024; 151:107662. [PMID: 39079390 DOI: 10.1016/j.bioorg.2024.107662] [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: 06/09/2024] [Revised: 07/06/2024] [Accepted: 07/17/2024] [Indexed: 08/30/2024]
Abstract
Antiepileptic drugs (AEDs) are used in the treatment of epilepsy, a neurodegenerative disease characterized by recurrent and untriggered seizures that aim to prevent seizures as a symptomatic treatment. However, they still have significant side effects as well as drug resistance. In recent years, especially 1,3,4-thiadiazoles and 1,2,4-triazoles have attracted attention in preclinical and clinical studies as important drug candidates owing to their anticonvulsant properties. Therefore, in this study, which was conducted to discover AED candidate molecules with reduced side effects at low doses, a series of chiral 2,5-disubstituted-1,3,4-thiadiazoles (4a-d) and 4,5-disubstituted-1,2,4-triazole-3 thiones (5a-d) were designed and synthesized starting from l-phenylalanine ethyl ester hydrochloride. The anticonvulsant activities of the new chiral compounds were assessed in several animal seizure models in mice and rats for initial (phase I) screening after their chemical structures including the configuration of the chiral center were elucidated using spectroscopic methods and elemental analysis. First, all chiral compounds were pre-screened using acute seizure tests induced electrically (maximal electroshock test, 6 Hz psychomotor seizure model) and induced chemically (subcutaneous metrazol seizure model) in mice and also their neurotoxicity (TOX) was determined in the rotorad assay. Two of the tested compounds were used for quantitative testing, and (S)-(+)5-[1-(4-fluorobenzamido)-2-phenylethyl]-4-(4-fluorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (5b) and (S)-(+)-(5-[1-(4-fluorobenzamido)-2-phenylethyl]-4-(4-methoxyphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (5c) emerged as the most promising anticonvulsant drug candidates and also showed low neurotoxicity. The antiepileptogenic potential of these compounds was determined using a chronic seizure induced electrically corneal kindled mouse model. Furthermore, all chiral compounds were tested for their neuroprotective effect against excitotoxic kainic acid (KA) and N-methyl-d-aspartate (NMDA) induced in vitro neuroprotection assay using an organotypic hippocampal slice culture. The KA-induced neuroprotection assay results revealed that compounds 5b and 5c, which are the leading compounds for anticonvulsant activity, also had the strongest neuroprotective effects with IC50 values of 103.30 ± 1.14 and 113.40 ± 1.20 μM respectively. Molecular docking studies conducted to investigate the molecular binding mechanism of the tested compounds on the GABAA receptor showed that compound 5b exhibits a strong affinity to the benzodiazepine (BZD) binding site on GABA. It also revealed that the NaV1.3 binding interactions were consistent with the experimental data and the reported binding mode of the ICA121431 inhibitor. This suggests that compound 5b has a high affinity for these specific binding sites, indicating its potential as a ligand for modulating GABAA and NaV1.3 receptor activity. Furthermore, the ADME properties displayed that all the physicochemical and pharmacological parameters of the compounds stayed within the specified limits and revealed a high bioavailability profile.
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Affiliation(s)
| | - Eyüp Başaran
- Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, 27310 Gaziantep, Turkey; Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Batman University, 72060 Batman, Turkey
| | - Gizem Tatar-Yılmaz
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey; Department of Bioinformatics, Institue of Health Science, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Emine Elçin Oruç-Emre
- Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, 27310 Gaziantep, Turkey
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