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Mohammadkhani M, Gholami D, Riazi G. The effects of chronic morphine administration on spatial memory and microtubule dynamicity in male mice's brain. IBRO Neurosci Rep 2024; 16:300-308. [PMID: 38390235 PMCID: PMC10881431 DOI: 10.1016/j.ibneur.2024.02.002] [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: 09/27/2023] [Accepted: 02/09/2024] [Indexed: 02/24/2024] Open
Abstract
The examination of the influence of morphine on behavioral processes, specifically learning and memory, holds significant importance. Additionally, microtubule proteins play a pivotal role in cellular functions, and the dynamics of microtubules contribute to neural network connectivity, information processing, and memory storage. however, the molecular mechanism of morphine on microtubule dynamics, learning, and memory remains uncovered. In the present study, we examined the effects of chronic morphine administration on memory formation impairment and the kinetic alterations in microtubule proteins induced by morphine in mice. Chronic morphine administration at doses of 5 and 10 mg/kg dose-dependently decreased subjects' performance in spatial memory tasks, such as the Morris Water Maze and Y-maze spontaneous alternation behavior. Furthermore, morphine was found to stabilize microtubule structure, and increase polymerization, and total polymer mass. However, it simultaneously impaired microtubule dynamicity, stemming from structural changes in tubulin dimer structure. These findings emphasize the need for careful consideration of different doses when using morphine, urging a more cautious approach in the administration of this opioid medication.
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Affiliation(s)
- Mina Mohammadkhani
- Department of Biochemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Dariush Gholami
- Department of Microbial Biotechnology, Faculty of Biotechnology, Amol University of Special Modern Technologies, Amol, Iran
| | - Gholamhossein Riazi
- Department of Biochemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
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Mamczarz J, Lane M, Merchenthaler I. Letrozole delays acquisition of water maze task in female BALB/c mice: Possible involvement of anxiety. Horm Behav 2024; 162:105524. [PMID: 38513526 DOI: 10.1016/j.yhbeh.2024.105524] [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: 09/27/2023] [Revised: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 03/23/2024]
Abstract
Letrozole, an aromatase inhibitor preventing estrogen synthesis from testosterone, is used as an adjuvant therapy in estrogen receptor-positive breast cancer patients. However, like other aromatase inhibitors, it induces many side effects, including impaired cognition. Despite its negative effect in humans, results from animal models are inconsistent and suggest that letrozole can either impair or improve cognition. Here, we studied the effects of chronic letrozole treatment on cognitive behavior of adult female BALB/c mice, a relevant animal model for breast cancer studies, to develop an appropriate animal model aimed at testing therapies to mitigate side effects of letrozole. In Morris water maze, letrozole 0.1 mg/kg impaired reference learning and memory. Interestingly, most of the letrozole 0.1 mg/kg-treated mice were able to learn the new platform position in reversal training and performed similar to control mice in a reversal probe test. Results of the reversal test suggest that letrozole did not completely disrupt spatial navigation, but rather delayed acquisition of spatial information. The delay might be related to increased anxiety as suggested by increased thigmotactic behavior during the reference memory training. The learning impairment was water maze-specific since we did not observe impairment in other spatial tasks such as in Y-maze or object location test. In contrast, the dose of 0.3 mg/kg did not have effect on water maze learning and facilitated locomotor habituation and recognition in novel object recognition test. The current study shows that letrozole dose-dependently modulates behavioral response and that its effects are task-dependent.
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Affiliation(s)
- Jacek Mamczarz
- Division of Translational Toxicology, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD 21201, United States of America.
| | - Malcolm Lane
- Department of Anatomy & Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, United States of America
| | - Istvan Merchenthaler
- Division of Translational Toxicology, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD 21201, United States of America; Department of Anatomy & Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, United States of America
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Lyons CE, Graves SI, Razzoli M, Jeganathan K, Mansk RP, McGonigle S, Sabarinathan N, van Deursen JM, Baker DJ, Bartolomucci A. Chronic Social and Psychological Stress Impact Select Neuropathologies in the PS19 Mouse Model of Tauopathy. Psychosom Med 2024; 86:366-378. [PMID: 37910129 PMCID: PMC10987396 DOI: 10.1097/psy.0000000000001256] [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] [Indexed: 11/03/2023]
Abstract
OBJECTIVE Despite advances toward understanding the etiology of Alzheimer's disease (AD), it remains unclear which aspects of this disease are affected by environmental factors. Chronic life stress increases the risk of aging-related diseases including AD. The impact of stress on tauopathies remains understudied. We examined the effects of stress elicited by social (chronic subordination stress [CSS]) or psychological/physical (chronic restraint stress [CRS]) factors on the PS19 mouse model of tauopathy. METHODS Male PS19 mice (average age, 6.3 months) were randomized to receive CSS or CRS, or to remain as singly housed controls. Behavioral tests were used to assess anxiety-like behaviors and cognitive functions. Immunofluorescence staining and Western blotting analysis were used to measure levels of astrogliosis, microgliosis, and tau burden. Immunohistochemistry was used to assess glucocorticoid receptor expression. RESULTS PS19 mice exhibit neuroinflammation (glial fibrillary acidic protein, t tests: p = .0297; allograft inflammatory factor 1, t tests: p = .006) and tau hyperphosphorylation ( t test, p = .0446) in the hippocampus, reduced anxiety (post hoc, p = .046), and cognitive deficits, when compared with wild-type mice. Surprisingly, CRS reduced hippocampal levels of both total tau and phospho-tau S404 ( t test, p = .0116), and attenuated some aspects of both astrogliosis and microgliosis in PS19 mice ( t tests, p = .068-.0003); however, this was not associated with significant changes in neurodegeneration or cognitive function. Anxiety-like behaviors were increased by CRS (post hoc, p = .046). Conversely, CSS impaired spatial learning in Barnes maze without impacting tau phosphorylation or neurodegeneration and having a minimal impact on gliosis. CONCLUSIONS Our results demonstrate that social or psychological stress can differentially impact anxiety-like behavior, select cognitive functions, and some aspects of tau-dependent pathology in PS19 male mice, providing entry points for the development of experimental approaches designed to slow AD progression.
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Affiliation(s)
- Carey E Lyons
- Department of Integrative Physiology and Biology, University of Minnesota, Minneapolis, MN, USA
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - Sara I Graves
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
| | - Maria Razzoli
- Department of Integrative Physiology and Biology, University of Minnesota, Minneapolis, MN, USA
| | - Karthik Jeganathan
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
| | - Rachel P Mansk
- Department of Integrative Physiology and Biology, University of Minnesota, Minneapolis, MN, USA
| | - Seth McGonigle
- Department of Integrative Physiology and Biology, University of Minnesota, Minneapolis, MN, USA
| | - Nivedita Sabarinathan
- Department of Integrative Physiology and Biology, University of Minnesota, Minneapolis, MN, USA
| | - Jan M van Deursen
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
| | - Darren J Baker
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
- Paul F. Glenn Center for the Biology of Aging at Mayo Clinic, Rochester, MN, USA
| | - Alessandro Bartolomucci
- Department of Integrative Physiology and Biology, University of Minnesota, Minneapolis, MN, USA
- Department of Medicine and Surgery, University of Parma, Italy
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Taraschenko O, Fox HS, Heliso P, Al-Saleem F, Dessain S, Kim WY, Samuelson MM, Dingledine R. Memory loss and aberrant neurogenesis in mice exposed to patient anti-N-methyl-d-aspartate receptor antibodies. Exp Neurol 2024; 378:114838. [PMID: 38801989 DOI: 10.1016/j.expneurol.2024.114838] [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: 03/24/2024] [Revised: 05/14/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
OBJECTIVE Anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis results in chronic epilepsy and permanent cognitive impairment. One of the possible causes of cognitive impairment in anti-NMDAR could be aberrant neurogenesis, an established contributor to memory loss in idiopathic drug-resistant epilepsy. We developed a mouse model of anti-NMDAR encephalitis and showed that mice exposed to patient anti-NMDAR antibodies for 2 weeks developed seizures and memory loss. In the present study, we assessed the delayed effects of patient-derived antibodies on cognitive phenotype and examined the corresponding changes in hippocampal neurogenesis. METHODS Monoclonal anti-NMDAR antibodies or control antibodies were continuously infused into the lateral ventricle of male C56BL/6J mice (8-12 weeks) via osmotic minipumps for 2 weeks. The motor and anxiety phenotypes were assessed using the open field paradigm, and hippocampal memory and learning were assessed using the object location, Y maze, and Barnes maze paradigms during weeks 1 and 3-4 of antibody washout. The numbers of newly matured granule neurons (Prox-1+) and immature progenitor cells (DCX+) as well as their spatial distribution within the hippocampus were assessed at these time points. Bromodeoxyuridine (BrdU, 50 mg/kg, i.p., daily) was injected on days 2-12 of the infusion, and proliferating cell immunoreactivity was compared in antibody-treated mice and control mice during week 4 of the washout. RESULTS Mice infused with anti-NMDAR antibodies demonstrated spatial memory impairment during week 1 of antibody washout (p = 0.02, t-test; n = 9-11). Histological analysis of hippocampal sections from these mice revealed an increased ectopic displacement of Prox-1+ cells in the dentate hilus compared to the control-antibody-treated mice (p = 0.01; t-test). Mice exposed to anti-NMDAR antibodies also had an impairment of spatial memory and learning during weeks 3-4 of antibody washout (object location: p = 0.009; t-test; Y maze: p = 0.006, t-test; Barnes maze: p = 0.008, ANOVA; n = 8-10). These mice showed increased ratios of the low proliferating (bright) to fast proliferating (faint) BrdU+ cell counts and decreased number of DCX+ cells in the hippocampal dentate gyrus (p = 0.006 and p = 0.04, respectively; t-tests) suggesting ectopic migration and delayed cell proliferation. SIGNIFICANCE These findings suggest that memory and learning impairments induced by patient anti-NMDAR antibodies are sustained upon removal of antibodies and are accompanied by aberrant hippocampal neurogenesis. Interventions directed at the manipulation of neuronal plasticity in patients with encephalitis and cognitive loss may be protective and therapeutically relevant.
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Affiliation(s)
- Olga Taraschenko
- Department of Neurological Sciences, Division of Epilepsy, University of Nebraska Medical Center, Omaha, NE, United States of America.
| | - Howard S Fox
- Department of Neurological Sciences, Division of Epilepsy, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Priscilla Heliso
- Department of Neurological Sciences, Division of Epilepsy, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Fetweh Al-Saleem
- Lankenau Institute for Medical Research, Wynnewood, PA, United States of America
| | - Scott Dessain
- Lankenau Institute for Medical Research, Wynnewood, PA, United States of America
| | - Woo-Yang Kim
- Department of Biological Sciences, Kent State University, Kent, OH, United States of America
| | - Mystera M Samuelson
- Department of Environmental, Agricultural and Occupational Health, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Raymond Dingledine
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, United States of America
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Bostick JW, Connerly TJ, Thron T, Needham BD, de Castro Fonseca M, Kaddurah-Daouk R, Knight R, Mazmanian SK. The microbiome shapes immunity in a sex-specific manner in mouse models of Alzheimer's disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.07.593011. [PMID: 38766238 PMCID: PMC11100721 DOI: 10.1101/2024.05.07.593011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
INTRODUCTION Preclinical studies reveal that the microbiome broadly affects immune responses and the deposition and/or clearance of amyloid-beta (Aβ) in mouse models of Alzheimer's disease (AD). Whether the microbiome shapes central and peripheral immune profiles in AD models remains unknown. METHODS We examined adaptive immune responses in two mouse models containing AD-related genetic predispositions (3xTg and 5xFAD) in the presence or absence of the microbiome. RESULTS T and B cells were altered in brain-associated and systemic immune tissues between genetic models and wildtype mice, with earlier signs if inflammation in female mice. Systemic immune responses were modulated by the microbiome and differed by sex. Further, the absence of a microbiome in germ-free mice resulted in reduced cognitive deficits, primarily in female mice. DISCUSSION These data reveal sexual dimorphism in early signs of inflammation and the effects of the microbiome, and highlight a previously unrecognized interaction between sex and the microbiome in mouse models of AD. Research in Context Systemic review: We reviewed the literature related to Alzheimer's disease (AD), inflammation, and the microbiome using PubMed. We cite several studies that demonstrate the influence of the microbiome on inflammation and cognitive performance in both animal models and humans. However, the mechanisms linking immunity to AD are not well understood. Interpretation: Using two well-established mouse models of AD, we found that the microbiome does not strongly influence the onset of inflammation in brain-draining lymph nodes; rather, it largely modulates systemic immune responses, local cytokine production, and cognitive performance. Notably, the inflammatory state in mice was affected by sex, and this sex effect differed between local and systemic tissues and mice with or without a microbiome. Future directions: Our work identified a sex- and microbiome-mediated effect on inflammation and cognitive performance. Future studies may focus on microbiome-dependent mechanisms that intersect with sex hormone and immune responses to determine peripheral effects on AD outcomes. Highlights Adaptive immunity is activated at early ages and differentially by sex in mouse models of AD.Inflammation in 5xFAD mice is characterized by increased IL-17A-producing T cells.Inflammation in 3xTg mice is characterized by increased cytokine responses in males, but attenuated cytokine responses in female mice.Longitudinal immune responses differ between 3xTg mice and 5xFAD mice.Both 3xTg and 5xFAD female mice show improved learning and cognition in the absence of a microbiome.
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Regniez M, Dufort-Gervais J, Provost C, Mongrain V, Martinez M. Characterization of Sleep, Emotional, and Cognitive Functions in a New Rat Model of Concomitant Spinal Cord and Traumatic Brain Injuries. J Neurotrauma 2024; 41:1044-1059. [PMID: 37885242 DOI: 10.1089/neu.2023.0387] [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: 10/28/2023] Open
Abstract
Traumatic injuries to the spinal cord or the brain have serious medical consequences and lead to long-term disability. The epidemiology, medical complications, and prognosis of isolated spinal cord injury (SCI) and traumatic brain injury (TBI) have been well described. However, there are limited data on patients suffering from concurrent SCI and TBI, even if a large proportion of SCI patients have concomitant TBI. The complications associated with this "dual-diagnosis" such as cognitive or behavioral dysfunction are well known in the rehabilitation setting, but evidence-based and standardized approaches for diagnosis and treatment are lacking. Our goal was to develop and characterize a pre-clinical animal model of concurrent SCI and TBI to help identifying "dual-diagnosis" tools. Female rats received a unilateral contusive SCI at the thoracic level alone (SCI group) or combined with a TBI centered on the contralateral sensorimotor cortex (SCI-TBI group). We first validated that the SCI extent was comparable between SCI-TBI and SCI groups, and that hindlimb function was impaired. We characterized various neurological outcomes, including locomotion, sleep architecture, brain activity during sleep, depressive- and anxiety-like behaviors, and working memory. We report that SCI-TBI and SCI groups show similar impairments in global locomotor function. While wake/sleep amount and distribution and anxiety- and depression-like symptoms were not affected in SCI-TBI and SCI groups in comparison to the control group (laminectomy and craniotomy only), working memory was impaired only in SCI-TBI rats. This pre-clinical model of concomitant SCI and TBI, including more severe variations of it, shows a translational value for the identification of biomarkers to refine the "dual-diagnosis" of neurotrauma in humans.
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Affiliation(s)
- Morgane Regniez
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
| | | | | | - Valérie Mongrain
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
- Research Center of the CHUM, Montréal, Québec, Canada
| | - Marina Martinez
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
- Groupe de recherche sur la Signalisation Neurale et la Circuiterie, Université de Montreal, Montréal, Québec, Canada
- Centre interdisciplinaire de recherche sur le cerveau et l'apprentissage, Université de Montreal, Montréal, Québec, Canada
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Magdy O, Eshra M, Rashed L, Maher M, Hosny SA, ShamsEldeen AM. Amelioration of cisplatin-induced neurodegenerative changes in rats and restoration of mitochondrial biogenesis by 6-bromoindirubin-3'-oxime: The implication of the GSK-3β/PGC1-α axis. Tissue Cell 2024; 88:102393. [PMID: 38705086 DOI: 10.1016/j.tice.2024.102393] [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: 02/03/2024] [Revised: 04/12/2024] [Accepted: 04/18/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND The cognitive deficits observed after treatment with chemotherapeutic drugs are obvious clinical problems. For treating chemotherapy-induced cognitive deficits (CICD), the treatment modalities must target its underlying mechanisms. Specifically, cisplatin may activate glycogen synthase kinase-3β (GSK-3β), thereby enhancing neuronal apoptosis. 6-bromoindirubin-3'-oxime (6BIO) was not investigated previously in a model of CICD. Therefore, this investigation aimed to address the impacts of GSK3 inhibition on regulating cell signaling, which contributes to neurodegeneration and cognitive impairment. METHODS Thirty adult male Wistar rats were randomly allocated into control groups, while two experimental groups were exposed to repeated cisplatin injections (2 mg/kg intraperitoneally (ip), twice weekly, nine injections), termed chemobrain groups. The rats in the two experimental groups were equally divided into the chemobrain group (untreated) and the chemobrain-6BIO group (treated with 6BIO at a dose of 8.5 μg/kg ip every two days, started after the last dose of cisplatin and continued for two weeks). RESULTS Repeated exposure to cisplatin led to a marked decline in cognitive functions. GSK3 inhibition exerted neuroprotection by decreasing the expression of p-tau and amyloid β, thereby improving cognition. 6BIO, the GSK-3β inhibitor, restored mitochondrial biogenesis by augmenting the protein levels of PGC1-α and increasing the number of mitochondria in the cerebral cortex and hippocampus. CONCLUSION 6BIO provided neuroprotection and exhibited anti-apoptotic and anti-oxidative effects in a rat model of chemobrain.
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Affiliation(s)
- Ola Magdy
- Department of Physiology, Faculty of Medicine, Cairo University, Egypt
| | - Mohammed Eshra
- Department of Physiology, Faculty of Medicine, Cairo University, Egypt
| | - Laila Rashed
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Egypt
| | - Muhammed Maher
- Department of Physiology, Faculty of Medicine, Cairo University, Egypt
| | - Sara Adel Hosny
- Department of Histology, Faculty of Medicine, Cairo University, Egypt
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Huang M, Sui R, Zhang L, Zhu Y, Yuan X, Jiang H, Mao X. Rosavin thwarts amyloid-β-induced macromolecular damages and neurotoxicity, exhibiting anti-Alzheimer's disease activity in Wister rat model. Inflammopharmacology 2024; 32:1461-1474. [PMID: 37758932 DOI: 10.1007/s10787-023-01320-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] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 08/04/2023] [Indexed: 09/29/2023]
Abstract
Lately, interest surrounding the utilization of plant-derived compounds as a viable beneficial approach for treating Alzheimer's disease (AD) has significantly increased. This study aimed to assess the defensive properties of rosavin against Alzheimer's disease induced by amyloid-β, utilizing experimental models. We found that rosavin exhibited anti-aggregation and disaggregation properties, suggesting its potential to prevent the gathering of Aβ-aggregates. In vitro experiments revealed that rosavin effectively mitigated the neurotoxicity induced by Aβ in Neuro-2a cells, showcasing its protective potential. Rosavin significantly improved the Aβ-induced cognitive deficits in Wistar rats, particularly in spatial memory. Which the pathophysiology of AD includes oxidative damage, which negatively impacts biological macromolecules. Triggers the apoptotic process, causing macromolecular destruction. Interestingly, rosavin attenuated Aβ-induced macromolecular damages, thereby preserving neuronal integrity. Furthermore, the activation of antioxidative defense enzymes by rosavin inhibited oxidative damage. The positive outcomes associated with rosavin were primarily attributed to its capacity to enhance acetylcholine-mediated effects. Finally, rosavin has the potential to alleviate Aβ-induced neurotoxicity and macromolecular damages, ultimately resulting in enhanced memorial and reasoning function in Wistar rats, offering promising prospects for the treatment of AD.
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Affiliation(s)
- Meiyi Huang
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, No 2, Section 5, Renmin Street, Jinzhou, 121099, China
| | - Rubo Sui
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, No 2, Section 5, Renmin Street, Jinzhou, 121099, China.
| | - Lei Zhang
- School of Nursing, Jinzhou Medical University, Jinzhou, 121099, China
| | - Yue Zhu
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, No 2, Section 5, Renmin Street, Jinzhou, 121099, China
| | - Xueling Yuan
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, No 2, Section 5, Renmin Street, Jinzhou, 121099, China
| | - Hongxin Jiang
- Department of Radiology, Gucheng County Hospital, Gucheng, 253809, China
| | - Xin Mao
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, No 2, Section 5, Renmin Street, Jinzhou, 121099, China.
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Iske J, Roesel MJ, Martin F, Schroeter A, Matsunaga T, Maenosono R, Tripathi U, Xiao Y, Nian Y, Caldarone BJ, Vondran FWR, Sage PT, Azuma H, Abdi R, Elkhal A, Pirtskhalava T, Tchkonia T, Kirkland JL, Zhou H, Tullius SG. Transplanting old organs promotes senescence in young recipients. Am J Transplant 2024; 24:391-405. [PMID: 37913871 PMCID: PMC10922683 DOI: 10.1016/j.ajt.2023.10.013] [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: 01/01/2023] [Revised: 10/05/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023]
Abstract
In clinical organ transplantation, donor and recipient ages may differ substantially. Old donor organs accumulate senescent cells that have the capacity to induce senescence in naïve cells. We hypothesized that the engraftment of old organs may induce senescence in younger recipients, promoting age-related pathologies. When performing isogeneic cardiac transplants between age-mismatched C57BL/6 old donor (18 months) mice and young and middle-aged C57BL/6 (3- or 12- month-old) recipients , we observed augmented frequencies of senescent cells in draining lymph nodes, adipose tissue, livers, and hindlimb muscles 30 days after transplantation. These observations went along with compromised physical performance and impaired spatial learning and memory abilities. Systemic levels of the senescence-associated secretory phenotype factors, including mitochondrial DNA (mt-DNA), were elevated in recipients. Of mechanistic relevance, injections of mt-DNA phenocopied effects of age-mismatched organ transplantation on accelerating aging. Single treatment of old donor animals with senolytics prior to transplantation attenuated mt-DNA release and improved physical capacities in young recipients. Collectively, we show that transplanting older organs induces senescence in transplant recipients, resulting in compromised physical and cognitive capacities. Depleting senescent cells with senolytics, in turn, represents a promising approach to improve outcomes of older organs.
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Affiliation(s)
- Jasper Iske
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Klinik für Herz-, Thorax-, und Gefäßchirurgie, Deutsches Herzzentrum der Charité, Berlin, Germany; Berlin Institutes of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Maximilian J Roesel
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Klinik für Herz-, Thorax-, und Gefäßchirurgie, Deutsches Herzzentrum der Charité, Berlin, Germany
| | - Friederike Martin
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Surgery, CVK/CCM, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Andreas Schroeter
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Regenerative Medicine and Experimental Surgery, Department of General, Visceral and Transplant Surgery, Hannover Medical School, Hannover, Germany
| | - Tomohisa Matsunaga
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Urology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Ryoichi Maenosono
- Department of Urology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Utkarsh Tripathi
- Department of Physiology and Biochemical Engineering Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - Yao Xiao
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Yeqi Nian
- Institute of Transplant Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Barbara J Caldarone
- Mouse Behavior Core, Department of Genetics, Harvard Medical School, Boston, Massachusetts, USA
| | - Florian W R Vondran
- Regenerative Medicine and Experimental Surgery, Department of General, Visceral and Transplant Surgery, Hannover Medical School, Hannover, Germany
| | - Peter T Sage
- Transplant Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Haruhito Azuma
- Department of Urology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Reza Abdi
- Transplant Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Abdallah Elkhal
- NAD+ Immunology Laboratory, Huntington Medical Research Institutes, Pasadena, California, USA
| | - Tamar Pirtskhalava
- Department of Physiology and Biochemical Engineering Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - Tamara Tchkonia
- Department of Physiology and Biochemical Engineering Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - James L Kirkland
- Department of Physiology and Biochemical Engineering Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA; Division of General Internal Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Hao Zhou
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Stefan G Tullius
- Division of Transplant Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
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Zavala-Ocampo LM, López-Camacho PY, Aguirre-Hernández E, Cárdenas-Vázquez R, Bonilla-Jaime H, Basurto-Islas G. Neuroprotective effects of Petiveria alliacea on scopolamine-induced learning and memory impairment mouse model. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116881. [PMID: 37460029 DOI: 10.1016/j.jep.2023.116881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/29/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE Petiveria alliacea L., commonly known as macura and gully root, is an important medicinal plant used in the Caribbean and Central America to treat ailments associated to the central nervous system, including poor memory. AIM OF THE STUDY To assess the effects of the P. alliacea leaves methanol fraction (PMF) on a scopolamine-induced learning and memory impairment mouse model related to acetylcholinesterase activity and oxidative stress. MATERIAL AND METHODS After PMF administration at doses of 500 or 900 mg/kg, cognitive ability was evaluated using the Morris water maze (MWM), Y-maze (YM) and novel object recognition (NOR) tests. The mouse brain tissue was further assessed for acetylcholinesterase activity and antioxidant activity. Levels of oxidative stress were also evaluated by measuring malondialdehyde (MDA) and glutathione activity. Acute toxicity was also evaluated. RESULTS PMF led to memory improvement in the behavioral tests in mice with scopolamine-induced cognitive impairment. Moreover, PMF inhibited acetylcholinesterase activity and showed antioxidant potential that in turn attenuated cholinergic degradation. Additionally, PMF increased glutathione levels and glutathione reductase activity and reduced MDA levels in the brain. Moreover, no acute toxicity was detected with the use of PMF. CONCLUSION In a mouse model of scopolamine-induced cognitive deficit, PMF exhibited protective effects, decreasing oxidative damage and regulating cholinergic function in the brain bearing significant memory enhancing potency. These data suggest that PMF is a promising candidate for developing therapies for neurodegenerative disorders.
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Affiliation(s)
- Lizeth M Zavala-Ocampo
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Ciudad de México, Mexico.
| | - Perla Y López-Camacho
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana Cuajimalpa, Ciudad de México, Mexico.
| | - Eva Aguirre-Hernández
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
| | - René Cárdenas-Vázquez
- Departamento de Biología Celular, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
| | - Herlinda Bonilla-Jaime
- Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana, Iztapalapa, Ciudad de México, Mexico.
| | - Gustavo Basurto-Islas
- División de Ciencias e Ingeniería, Universidad de Guanajuato, León, Guanajuato, Mexico.
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11
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Jang YJ, Choi MG, Yoo BJ, Lee KJ, Jung WB, Kim SG, Park SA. Interaction Between a High-Fat Diet and Tau Pathology in Mice: Implications for Alzheimer's Disease. J Alzheimers Dis 2024; 97:485-506. [PMID: 38108353 DOI: 10.3233/jad-230927] [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: 12/19/2023]
Abstract
BACKGROUND Obesity is a modifiable risk factor for Alzheimer's disease (AD). However, its relation with tau pathology (i.e., aberrant tau protein behavior in tauopathies such as AD) has been inconclusive. OBJECTIVE This study investigated the interaction between a high-fat diet (HFD) and tau pathology in adult male mice. METHODS Transgenic mice overexpressing human P301S Tau (those with the pathology) and wild-type (WT) littermates were subjected to behavioral tests, functional magnetic resonance imaging (fMRI), diffusion tensor imaging (DTI), and western blotting analysis to investigate the effects of prolonged HFD versus regular diet during adulthood. RESULTS HFD increased body weight in both WT and P301S mice but had minimal effect on blood glucose levels. The brain response to HFD was tau genotype-specific. WT mice exhibited decreased recognition memory and enhanced network connectivity in fMRI, while P301S mice exhibited white matter tract disorganization in DTI as the sole significant finding. The reduction of insulin receptor β, insulin downstream signaling, neuronal nuclear protein, CD68-positive phagocytic activity, and myelin basic protein level were confined to the cortex of WT mice. In contrast to P301S mice, WT mice showed significant changes in the tau protein and its phosphorylation levels along with increased soluble neurofilament light levels in the hippocampus. CONCLUSIONS HFD-induced brain dysfunction and pathological changes were blunted in mice with the pathology and more profound in healthy mice. Our findings highlight the need to consider this interaction between obesity and tau pathology when tailoring treatment strategies for AD and other tauopathies.
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Affiliation(s)
- Yu Jung Jang
- Lab for Neurodegenerative Dementia, Department of Anatomy, Ajou University School of Medicine, Suwon, Republic of Korea
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Republic of Korea
| | - Min Gyu Choi
- Lab for Neurodegenerative Dementia, Department of Anatomy, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Byung Jae Yoo
- Lab for Neurodegenerative Dementia, Department of Anatomy, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Kyeong Jae Lee
- Lab for Neurodegenerative Dementia, Department of Anatomy, Ajou University School of Medicine, Suwon, Republic of Korea
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Republic of Korea
| | - Won Beom Jung
- Center for Neuroscience Imaging Research (CNIR), Institute for Basic Science (IBS), Suwon, Republic of Korea
| | - Seong-Gi Kim
- Center for Neuroscience Imaging Research (CNIR), Institute for Basic Science (IBS), Suwon, Republic of Korea
- Department of Biomedical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Sun Ah Park
- Lab for Neurodegenerative Dementia, Department of Anatomy, Ajou University School of Medicine, Suwon, Republic of Korea
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Republic of Korea
- Department of Neurology, Ajou University School of Medicine, Suwon, Republic of Korea
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12
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Alamri OA, Qusti S, Balgoon M, Ageeli AA, Al-Marhaby FA, Alosaimi AM, Jowhari MA, Saeed A. The role of MoS 2 QDs coated with DSPE-PEG-TPP in the protection of protein secondary structure of the brain tissues in an Alzheimer's disease model. Int J Biol Macromol 2024; 255:128522. [PMID: 38040141 DOI: 10.1016/j.ijbiomac.2023.128522] [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: 08/09/2023] [Revised: 11/12/2023] [Accepted: 11/28/2023] [Indexed: 12/03/2023]
Abstract
In this investigation, we have explored the protective capacity of MoS2 QDs coated with 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethyleneglycol) -2000] (DSPE-PEG) linked with (3-carboxypropyl) triphenylphosphonium-bromide (TPP), on the secondary structure of proteins in Alzheimer's disease (AD)-affected brain tissues. Using a cohort of fifteen male SWR/J mice, we establish three groups: a control group, a second group induced with AD through daily doses of AlCl3 and D-galactose for 49 consecutive days, and a third group receiving the same AD-inducing doses but treated with DSPE-PEG-TPP-MoS2 QDs. Brain tissues are meticulously separated from the skull, and their molecular structures are analyzed via FTIR spectroscopy. Employing the curve fitting method on the amide I peak, we delve into the nuances of protein secondary structure. The FTIR analysis reveals a marked increase in β-sheet structures and a concurrent decline in turn and α-helix structures in the AD group in comparison to the control group. Notably, no statistically significant differences emerge between the treated and control mice. Furthermore, multivariate analysis of the FTIR spectral region, encompassing protein amide molecular structures, underscores a remarkable similarity between the treated and normal mice. This study elucidates the potential of DSPE-PEG-TPP-MoS2 QDs in shielding brain tissue proteins against the pathogenic influences of AD.
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Affiliation(s)
- Ohoud Abdulaziz Alamri
- Department of Medical Laboratory, King Fahad Armed Forces Hospital, Jeddah 23311, Saudi Arabia; Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Safaa Qusti
- Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Maha Balgoon
- Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abeer A Ageeli
- Department of Chemistry, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia
| | - F A Al-Marhaby
- Department of Physics, Al-Qunfudhah University College, Umm Al-Qura University, Makkah 24230, Saudi Arabia
| | - Abeer M Alosaimi
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia
| | - Mohammed A Jowhari
- Medical Physics Department, Jazan Specialized Hospital, Ministry of Health, Jazan Health Affairs, Jazan 45142, Saudi Arabia
| | - Abdu Saeed
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Physics, Thamar University, Thamar 87246, Yemen.
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13
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Yeapuri P, Machhi J, Lu Y, Abdelmoaty MM, Kadry R, Patel M, Bhattarai S, Lu E, Namminga KL, Olson KE, Foster EG, Mosley RL, Gendelman HE. Amyloid-β specific regulatory T cells attenuate Alzheimer's disease pathobiology in APP/PS1 mice. Mol Neurodegener 2023; 18:97. [PMID: 38111016 PMCID: PMC10729469 DOI: 10.1186/s13024-023-00692-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 12/04/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND Regulatory T cells (Tregs) maintain immune tolerance. While Treg-mediated neuroprotective activities are now well-accepted, the lack of defined antigen specificity limits their therapeutic potential. This is notable for neurodegenerative diseases where cell access to injured brain regions is required for disease-specific therapeutic targeting and improved outcomes. To address this need, amyloid-beta (Aβ) antigen specificity was conferred to Treg responses by engineering the T cell receptor (TCR) specific for Aβ (TCRAβ). The TCRAb were developed from disease-specific T cell effector (Teff) clones. The ability of Tregs expressing a transgenic TCRAβ (TCRAβ -Tregs) to reduce Aβ burden, transform effector to regulatory cells, and reverse disease-associated neurotoxicity proved beneficial in an animal model of Alzheimer's disease. METHODS TCRAβ -Tregs were generated by CRISPR-Cas9 knockout of endogenous TCR and consequent incorporation of the transgenic TCRAb identified from Aβ reactive Teff monoclones. Antigen specificity was confirmed by MHC-Aβ-tetramer staining. Adoptive transfer of TCRAβ-Tregs to mice expressing a chimeric mouse-human amyloid precursor protein and a mutant human presenilin-1 followed measured behavior, immune, and immunohistochemical outcomes. RESULTS TCRAβ-Tregs expressed an Aβ-specific TCR. Adoptive transfer of TCRAβ-Tregs led to sustained immune suppression, reduced microglial reaction, and amyloid loads. 18F-fluorodeoxyglucose radiolabeled TCRAβ-Treg homed to the brain facilitating antigen specificity. Reduction in amyloid load was associated with improved cognitive functions. CONCLUSIONS TCRAβ-Tregs reduced amyloid burden, restored brain homeostasis, and improved learning and memory, supporting the increased therapeutic benefit of antigen specific Treg immunotherapy for AD.
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Affiliation(s)
- Pravin Yeapuri
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Jatin Machhi
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Yaman Lu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Mai Mohamed Abdelmoaty
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Rana Kadry
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Milankumar Patel
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Shaurav Bhattarai
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Eugene Lu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Krista L Namminga
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Katherine E Olson
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Emma G Foster
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - R Lee Mosley
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, USA.
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14
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Dundee JM, Puigdellívol M, Butler R, Brown GC. P2Y 6 Receptor-Dependent Microglial Phagocytosis of Synapses during Development Regulates Synapse Density and Memory. J Neurosci 2023; 43:8090-8103. [PMID: 37758475 PMCID: PMC10697425 DOI: 10.1523/jneurosci.1089-23.2023] [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: 05/15/2023] [Revised: 07/27/2023] [Accepted: 08/31/2023] [Indexed: 10/02/2023] Open
Abstract
During brain development, excess synapses are pruned (i.e., removed), in part by microglial phagocytosis, and dysregulated synaptic pruning can lead to behavioral deficits. The P2Y6 receptor (P2Y6R) is known to regulate microglial phagocytosis of neurons, and to regulate microglial phagocytosis of synapses in cell culture and in vivo during aging. However, currently it is unknown whether P2Y6R regulates synaptic pruning during development. Here, we show that P2Y6R KO mice of both sexes had strongly reduced microglial internalization of synaptic material, measured as Vglut1 within CD68-staining lysosomes of microglia at postnatal day 30 (P30), suggesting reduced microglial phagocytosis of synapses. Consistent with this, we found an increased density of synapses in the somatosensory cortex and the CA3 region and dentate gyrus of the hippocampus at P30. We also show that adult P2Y6R KO mice have impaired short- and long-term spatial memory and impaired short- and long-term recognition memory compared with WT mice, as measured by novel location recognition, novel object recognition, and Y-maze memory tests. Overall, this indicates that P2Y6R regulates microglial phagocytosis of synapses during development, and this contributes to memory capacity.SIGNIFICANCE STATEMENT The P2Y6 receptor (P2Y6R) is activated by uridine diphosphate released by neurons, inducing microglial phagocytosis of such neurons or synapses. We tested whether P2Y6R regulates developmental synaptic pruning in mice and found that P2Y6R KO mice have reduced synaptic material within microglial lysosomes, and increased synaptic density in the brains of postnatal day 30 mice, consistent with reduced synaptic pruning during development. We also found that adult P2Y6R KO mice had reduced memory, consistent with persistent deficits in brain function, resulting from impaired synaptic pruning. Overall, the results suggest that P2Y6R mediates microglial phagocytosis of synapses during development, and the absence of this results in memory deficits in the adult.
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Affiliation(s)
- Jacob M Dundee
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, United Kingdom
| | - Mar Puigdellívol
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, United Kingdom
- Institute of Neurosciences, University of Barcelona, Barcelona, 08035, Spain
| | - Richard Butler
- The Wellcome Trust Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, CB2 1QN, United Kingdom
| | - Guy C Brown
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, United Kingdom
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15
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Tucker M, Keely A, Park JY, Rosenfeld M, Wezeman J, Mangalindan R, Ratner D, Ladiges W. Intranasal GHK peptide enhances resilience to cognitive decline in aging mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.16.567423. [PMID: 38014118 PMCID: PMC10680828 DOI: 10.1101/2023.11.16.567423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Brain aging and cognitive decline are aspects of growing old. Age-related cognitive impairment entails the early stages of cognitive decline, and is extremely common, affecting millions of older people. Investigation into early cognitive decline as a treatable condition is relevant to a wide range of cognitive impairment conditions, since mild age-related neuropathology increases risk for more severe neuropathology and dementia associated with Alzheimer's Disease. Recent studies suggest that the naturally occurring peptide GHK (glycyl-L-histidyl-L-lysine) in its Cu-bound form, has the potential to treat cognitive decline associated with aging. In order to test this concept, male and female C57BL/6 mice, 20 months of age, were given intranasal GHK-Cu, 15 mg/kg daily, for two months. Results showed that mice treated with intranasal GHK-Cu had an enhanced level of cognitive performance in spatial memory and learning navigation tasks, and expressed decreased neuroinflammatory and axonal damage markers compared to mice treated with intranasal saline. These observations suggest that GHK-Cu can enhance resilience to brain aging, and has translational implications for further testing in both preclinical and clinical studies using an atomizer device for intranasal delivery.
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Affiliation(s)
- Matthew Tucker
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle WA
- Department of Bioengineering, College of Engineering and School of Medicine, University of Washington, Seattle WA
| | - Addison Keely
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle WA
| | - Joo Young Park
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle WA
| | - Manuela Rosenfeld
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle WA
| | - Jackson Wezeman
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle WA
| | - Ruby Mangalindan
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle WA
| | - Dan Ratner
- Department of Bioengineering, College of Engineering and School of Medicine, University of Washington, Seattle WA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle WA
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16
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Liu S, Zhang S, Guo M, Lei Q, He L, Li Z. Acoustic stimulation during sleep improves cognition and ameliorates Alzheimer's disease pathology in APP/PS1 mice. Exp Gerontol 2023; 182:112299. [PMID: 37776987 DOI: 10.1016/j.exger.2023.112299] [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: 09/15/2023] [Accepted: 09/25/2023] [Indexed: 10/02/2023]
Abstract
Nonpharmacological therapies for Alzheimer's disease (AD) have become a popular research topic, and acoustic stimulation during sleep is one such promising strategy for the clinical treatment of AD. Some animal experiments have illustrated that acoustic stimulation at a specific frequency can ameliorate AD-related pathology or improve cognition in mice, but these studies did not explore the effective time window of auditory stimulation. Here, we explored the effects of acoustic stimulation during wakefulness and acoustic stimulation during sleep on cognition and AD-related pathology in APP/PS1 mice and the underlying mechanisms. In this study, forty APP/PS1 mice were equally divided into the following 4 groups and treated for 28 days: the chronic sleep deprivation (CSD) group (exposed to sleep deprivation from zeitgeber time [ZT] 0 to ZT 12 each day), the normal sleep and stress exposure (NSS) group (exposed to a stressor from ZT 0 to ZT 12 each day), the acoustic stimulation during wakefulness (ASW) group (exposed to sleep deprivation and 40 Hz acoustic stimulation from ZT 0 to ZT 12 each day) and the acoustic stimulation during sleep (ASS) group (exposed to sleep deprivation from ZT 0 to ZT 12 and 40 Hz acoustic stimulation from ZT 12 to ZT 24 each day). After the intervention, cognition was assessed by behavioural experiments. The amyloid-β burden was analysed by Western blotting, immunofluorescence and enzyme-linked immunosorbent assay. Tau pathology was assessed by Western blotting. Mitochondrial function was evaluated by transmission electron microscopy, Western blotting and fluorescence intensity measurement. We found that the NSS and ASS groups had better cognitive functions than the CSD and ASW groups. The Aβ burden and tau phosphorylation were lower in the NSS and ASS groups than in the CSD and ASW groups. Mitochondrial function was better in the NSS and ASS groups than in the CSD and ASW groups. However, the differences in these parameters between the NSS and ASS groups and between the CSD and ASW groups were not significant. Our findings suggest that acoustic stimulation at a specific frequency during sleep, but not during wakefulness, reduces the amyloid-β burden by inhibiting amyloid beta precursor protein-binding protein 2, hinders tau phosphorylation by blocking glycogen synthase kinase 3 beta, and restores mitochondrial function by elevating mitophagy and promoting mitochondrial biogenesis.
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Affiliation(s)
- Shunjie Liu
- Department of Neurology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China; Shenzhen Research Institute of Sun Yat-Sen University, Shenzhen 518000, China; Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou 510080, China; Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University
| | - Su Zhang
- Department of Neurology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China; Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University
| | - Mengxia Guo
- Department of Neurology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China; Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University
| | - Qingfeng Lei
- Department of Neurology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China; Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University
| | - Lu He
- Department of Neurology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China; Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University
| | - Zhong Li
- Department of Neurology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China; Shenzhen Research Institute of Sun Yat-Sen University, Shenzhen 518000, China; Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou 510080, China; Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University.
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17
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Du L, Wu Y, Jia Q, Li J, Li Y, Ma H, Fan Z, Guo X, Li L, Peng Y, Li J, Fang Z, Zhang X. Autophagy Suppresses Ferroptosis by Degrading TFR1 to Alleviate Cognitive Dysfunction in Mice with SAE. Cell Mol Neurobiol 2023; 43:3605-3622. [PMID: 37341832 DOI: 10.1007/s10571-023-01370-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/30/2023] [Indexed: 06/22/2023]
Abstract
Sepsis-associated encephalopathy (SAE) is a serious complication of sepsis that is characterized by long-term cognitive impairment, which imposes a heavy burden on families and society. However, its pathological mechanism has not been elucidated. Ferroptosis is a novel form of programmed cell death that is involved in multiple neurodegenerative diseases. In the current study, we found that ferroptosis also participated in the pathological process of cognitive dysfunction in SAE, while Liproxstatin-1 (Lip-1) effectively inhibited ferroptosis and alleviated cognitive impairment. Additionally, since an increasing number of studies have suggested the crosstalk between autophagy and ferroptosis, we further proved the essential role of autophagy in this process and demonstrated the key molecular mechanism of the autophagy-ferroptosis interaction. Currently, we showed that autophagy in the hippocampus was downregulated within 3 days of lipopolysaccharide injection into the lateral ventricle. Moreover, enhancing autophagy ameliorated cognitive dysfunction. Importantly, we found that autophagy suppressed ferroptosis by downregulating transferrin receptor 1 (TFR1) in the hippocampus, thereby alleviating cognitive impairment in mice with SAE. In conclusion, our findings indicated that hippocampal neuronal ferroptosis is associated with cognitive impairment. In addition, enhancing autophagy can inhibit ferroptosis via degradation of TFR1 to ameliorate cognitive impairment in SAE, which shed new light on the prevention and therapy for SAE.
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Affiliation(s)
- Lixia Du
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
- College of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - You Wu
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Qi Jia
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Jin Li
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Yi Li
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Hongwei Ma
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Zhongmin Fan
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Xiaofeng Guo
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Ling Li
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Yuliang Peng
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Jing Li
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Zongping Fang
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
- Translational Research Institute of Brain and Brain-Like Intelligence, School of Medicine, Shanghai Fourth People's Hospital, Tongji University, Shanghai, 200434, China.
| | - Xijing Zhang
- Department of Anesthesiology and Perioperative Medicine and Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
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18
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Ho A, Ngala B, Yamada C, Garcia C, Duarte C, Akkaoui J, Ciolac D, Nusbaum A, Kochen W, Efremova D, Groppa S, Nathanson L, Bissel S, Oblak A, Kacena MA, Movila A. IL-34 exacerbates pathogenic features of Alzheimer's disease and calvaria osteolysis in triple transgenic (3x-Tg) female mice. Biomed Pharmacother 2023; 166:115435. [PMID: 37666180 DOI: 10.1016/j.biopha.2023.115435] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023] Open
Abstract
Hallmark features of Alzheimer's disease (AD) include elevated accumulation of aggregated Aβ40 and Aβ42 peptides, hyperphosphorylated Tau (p-Tau), and neuroinflammation. Emerging evidence indicated that interleukin-34 (IL-34) contributes to AD and inflammatory osteolysis via the colony-stimulating factor-1 receptor (CSF-1r). In addition, CSF-1r is also activated by macrophage colony-stimulating factor-1 (M-CSF). While the role of M-CSF in bone physiology and pathology is well addressed, it remains controversial whether IL-34-mediated signaling promotes osteolysis, neurodegeneration, and neuroinflammation in relation to AD. In this study, we injected 3x-Tg mice with mouse recombinant IL-34 protein over the calvaria bone every other day for 42 days. Then, behavioral changes, brain pathology, and calvaria osteolysis were evaluated using various behavioral maze and histological assays. We demonstrated that IL-34 administration dramatically elevated AD-like anxiety and memory loss, pathogenic amyloidogenesis, p-Tau, and RAGE expression in female 3x-Tg mice. Furthermore, IL-34 delivery promoted calvaria inflammatory osteolysis compared to the control group. In addition, we also compared the effects of IL-34 and M-CSF on macrophages, microglia, and RANKL-mediated osteoclastogenesis in relation to AD pathology in vitro. We observed that IL-34-exposed SIM-A9 microglia and 3x-Tg bone marrow-derived macrophages released significantly elevated amounts of pro-inflammatory cytokines, TNF-α, IL-1β, and IL-6, compared to M-CSF treatment in vitro. Furthermore, IL-34, but not M-CSF, elevated RANKL-primed osteoclastogenesis in the presence of Aβ40 and Aβ42 peptides in bone marrow derived macrophages isolated from female 3x-Tg mice. Collectively, our data indicated that IL-34 elevates AD-like features, including behavioral changes and neuroinflammation, as well as osteoclastogenesis in female 3x-Tg mice.
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Affiliation(s)
- Anny Ho
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Bidii Ngala
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Christopher Garcia
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Carolina Duarte
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Juliet Akkaoui
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Dumitru Ciolac
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Amilia Nusbaum
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - William Kochen
- College of Psychology, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Daniela Efremova
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Stanislav Groppa
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Stephanie Bissel
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Adrian Oblak
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Melissa A Kacena
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alexandru Movila
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA.
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19
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Sandeep Ganesh G, Konduri P, Kolusu AS, Namburi SV, Chunduru BTC, Nemmani KVS, Samudrala PK. Neuroprotective Effect of Saroglitazar on Scopolamine-Induced Alzheimer's in Rats: Insights into the Underlying Mechanisms. ACS Chem Neurosci 2023; 14:3444-3459. [PMID: 37669120 DOI: 10.1021/acschemneuro.3c00320] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023] Open
Abstract
Alzheimer's disease (AD) is one of the most prevalent and progressive neurodegenerative disorders, hallmarked by increased amyloid-β deposition and enhanced oxidative load in the brain, ensuing cognitive decline. The present study is aimed at elucidating the neuroprotective effect of saroglitazar, a dual peroxisome-proliferator-activated receptor (PPARα/γ) agonist used in the treatment of diabetic dyslipidemia, against memory impairment induced by intraperitoneal scopolamine injection. 30 male Wistar rats were randomly divided into the following five groups: (A) Veh + Veh, (B) SGZ + Veh, (C) Veh + SCOP, (D) DPZ + SCOP, and (E) SGZ + SCOP. Rats of the respective groups were pretreated with saroglitazar (10 mg/kg, p.o.) and donepezil (3 mg/kg, p.o.) once daily for 16 days. During the final 9 days of the study, a daily injection of scopolamine (3 mg/kg, i.p.) was administered to the respective groups. Adjacent to the scopolamine injection, behavioral tests such as the open field, Y maze, novel object recognition test, and Morris water maze were conducted to assess learning and memory. Additionally, biochemical parameters such as acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), nitric oxide (NO), malondialdehyde (MDA), reduced glutathione (GSH), superoxide dismutase (SOD), brain-derived neurotrophic factor (BDNF), β-amyloid levels, and NF-κB were measured in the hippocampus. The rats that received scopolamine injections showed significantly impaired short-term spatial and learning memory. This was associated with an increase in β-amyloid, iNOS, nitric oxide (NO), malondialdehyde, NF-κB, and TNF-α levels in the hippocampus of AD rats. On the other hand, saroglitazar has provided promising data on its protective role in cognition by protecting the BDNF, SOD, and GSH decline. As a result, saroglitazar was found to be a promising therapy in AD by upregulating the antioxidant status and cholinergic activity and preventing memory loss. Collectively, findings in the present study revealed that saroglitazar protected AD by suppressing scopolamine-mediated learning and memory deficits, oxidative stress, and cholinergic damage. Studying these mechanisms may conclude the protective role of saroglitazar against AD. However, further studies in transgenic animals will provide numerous insights into treatment mechanisms and contribute to developing a therapeutic intervention for AD.
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Affiliation(s)
- Grandhi Sandeep Ganesh
- Department of Pharmacology, Shri Vishnu College of Pharmacy, Bhimavaram, Andhra Pradesh 534202, India
| | - Prasad Konduri
- Department of Pharmacology, Shri Vishnu College of Pharmacy, Bhimavaram, Andhra Pradesh 534202, India
| | - Aravinda Sai Kolusu
- Department of Pharmacology, Shri Vishnu College of Pharmacy, Bhimavaram, Andhra Pradesh 534202, India
| | - Srihari Vandana Namburi
- Department of Pharmacology, Shri Vishnu College of Pharmacy, Bhimavaram, Andhra Pradesh 534202, India
| | - Bala Tejo Chandra Chunduru
- Clinical Data Manager, STATMINDS LLC, 501 Allendale Rd Suite 202, King of Prussia, Pennsylvania 19406, United States
| | - Kumar V S Nemmani
- Department of Pharmacology, Shri Vishnu College of Pharmacy, Bhimavaram, Andhra Pradesh 534202, India
| | - Pavan Kumar Samudrala
- Department of Pharmacology, Shri Vishnu College of Pharmacy, Bhimavaram, Andhra Pradesh 534202, India
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20
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Kim J, Kang H, Lee YB, Lee B, Lee D. A quantitative analysis of spontaneous alternation behaviors on a Y-maze reveals adverse effects of acute social isolation on spatial working memory. Sci Rep 2023; 13:14722. [PMID: 37679447 PMCID: PMC10485067 DOI: 10.1038/s41598-023-41996-4] [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: 05/08/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023] Open
Abstract
Animals tend to alternate between different choices, which requires the ability to remember recent choices. The Y-maze spontaneous alternation test is widely used in various animal models for assessing short-term memory, and its precise evaluation depends upon the accurate determination of the arm visit sequence. However, an objective method for defining arm visits is lacking owing to uncertainty regarding the extent to which an animal must go into the arm to be considered visited. Here, we conducted quantitative analyses on mice behavior in the Y-maze while systematically varying the arm visit threshold and assessed the effect of acute social isolation on spatial working memory. Our results revealed that 24-h social isolation significantly reduced spontaneous alternation rate when the arm threshold was set at the distal part of the arm. Furthermore, the memory of the recently visited arms faded away faster in the socially isolated mice. However, other behavioral factors were comparable to those of the group-housed mice, indicating a specific impairment of short-term memory. Our findings suggest that the location of arm visit threshold is critical for the precise evaluation of short-term memory, and our study provides a method for comprehensively and systematically assessing spontaneous alternation behavior in the Y-maze.
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Affiliation(s)
- Joowon Kim
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon, 34126, Korea
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
| | - Hyeyeon Kang
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon, 34126, Korea
- Department of Biomedical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Korea
| | - Young-Beom Lee
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon, 34126, Korea
| | - Boyoung Lee
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon, 34126, Korea
| | - Doyun Lee
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon, 34126, Korea.
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21
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AbdElrazek DA, Ibrahim MA, Hassan NH, Hassanen EI, Farroh KY, Abass HI. Neuroprotective effect of quercetin and nano-quercetin against cyclophosphamide-induced oxidative stress in the rat brain: Role of Nrf2/ HO-1/Keap-1 signaling pathway. Neurotoxicology 2023; 98:16-28. [PMID: 37419146 DOI: 10.1016/j.neuro.2023.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/19/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023]
Abstract
Quercetin (Qu) is a powerful flavanol antioxidant that is naturally found in plants and is part of the flavonoid family. Qu has a wide range of biological properties, such as neuroprotective, anti-cancer, anti-diabetic, anti-inflammatory, and radical scavenging capabilities. However, the in vivo application of Qu is limited by its poor water solubility and low bioavailability. These issues could be addressed by utilizing Qu nanoformulations. Cyclophosphamide (CP) is a potent chemotherapeutic agent that causes severe neuronal damage and cognitive impairment due to reactive oxygen species (ROS) overproduction. The present study aimed to explore the proposed neuroprotective mechanism of quercetin (Qu) and quercetin-loaded Chitosan nanoparticles (Qu-Ch NPs) against the brain oxidative damage induced by CP in male albino rats. For this aim, thirty-six adult male rats were randomly divided into six groups (n = 6). Rats were pretreated with Qu and Qu-Ch NPs orally in doses of 10 mg/kg bwt/day for 2 weeks, and CP (75 mg/kg bwt) was administered intraperitoneally 24 h before the termination of the experiment. After 2 weeks, some neurobehavioral parameters were evaluated, and then euthanization was done to collect the brain and blood samples. Results showed that CP induces neurobehavioral deteriorations and impaired brain neurochemical status demonstrated by a significant decrease in brain glutathione (GSH), serum total antioxidant capacity (TAC), and serotonin (5-HT) levels while malondialdehyde (MDA), nitric oxide (NO), Tumor necrosis factor α (TNFα), and choline esterase (ChE) concentrations increased significantly compared to the control group. Pretreatment with Qu and Qu-Ch NPs showed a significant anti-oxidative, anti-depressive, and neuroprotective effect through modification of the above-mentioned parameters. The results were further validated by assessing the expression levels of selected genes in brain homogenates and histopathological investigations were done to pinpoint the exact brain-altered regions. It could be concluded that Qu and Qu-Ch NPs can be useful neuroprotective adjunct therapy to overcome neurochemical damage induced by CP.
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Affiliation(s)
- Dina A AbdElrazek
- Physiology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Marwa A Ibrahim
- Biochemistry Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Neven H Hassan
- Physiology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Eman I Hassanen
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Khaled Y Farroh
- Nanotechnology and Advanced Materials Central Lab, Agricultural Research Center, Giza, Egypt
| | - H I Abass
- Physiology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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22
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Malik H, Usman M, Arif M, Ahmed Z, Ali G, Rauf K, Sewell RDE. Diosgenin normalization of disrupted behavioral and central neurochemical activity after single prolonged stress. Front Pharmacol 2023; 14:1232088. [PMID: 37663254 PMCID: PMC10468593 DOI: 10.3389/fphar.2023.1232088] [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: 05/31/2023] [Accepted: 08/01/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction: Post-traumatic stress disorder (PTSD) is a chronic mental illness triggered by traumatic experiences such as wars, natural disasters, or catastrophes, and it is characterized by anxiety, depression and cognitive impairment. Diosgenin is a steroidal sapogenin with known neuroprotective and antioxidant properties. This study aimed to assess the pharmacological potential of diosgenin in a single prolonged stress (SPS) model of PTSD, plus other behavioral models along with any consequent alterations in brain neurochemistry in male mice. Methodology: SPS was induced by restraining animals for 2 h, followed by 20 min of forced swim, recuperation for 15 min, and finally, exposure to ether to induce anesthesia. The SPS-exposed animals were treated with diosgenin (20, 40, and 60 mg/kg) and compared with the positive controls, fluoxetine or donepezil, then they were observed for any changes in anxiety/depression-like behaviors, and cognitive impairment. After behavioral screening, postmortem serotonin, noradrenaline, dopamine, vitamin C, adenosine and its metabolites inosine and hypoxanthine were quantified in the frontal cortex, hippocampus, and striatum by high-performance liquid chromatography. Additionally, animal serum was screened for changes in corticosterone levels. Results: The results showed that diosgenin reversed anxiety- and depression-like behaviors, and ameliorated cognitive impairment in a dose-dependent manner. Additionally, diosgenin restored monoamine and vitamin C levels dose-dependently and modulated adenosine and its metabolites in the brain regions. Diosgenin also reinstated otherwise increased serum corticosterone levels in SPS mice. Conclusion: The findings suggest that diosgenin may be a potential candidate for improving symptoms of PTSD.
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Affiliation(s)
- Hurmat Malik
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Muhammad Usman
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Mehreen Arif
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Zainab Ahmed
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Khalid Rauf
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Robert D. E. Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
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23
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Sims S, Barak O, Ryu V, Miyashita S, Kannangara H, Korkmaz F, Wizman S, Macdonald A, Gumerova A, Goosens K, Zaidi M, Yuen T, Lizneva D, Frolinger T. Absent LH signaling rescues the anxiety phenotype in aging female mice. Mol Psychiatry 2023; 28:3324-3331. [PMID: 37563278 DOI: 10.1038/s41380-023-02209-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/12/2023]
Abstract
Clinical studies and experimental data together support a role for pituitary gonadotropins, including luteinizing hormone (LH), otherwise considered solely as fertility hormones, in age-related cognitive decline. Furthermore, rising levels of LH in post-menopausal women have been implicated in the high prevalence of mood disorders. This study was designed to examine the effect of deficient LH signaling on both cognitive and emotional behavior in 12-month-old Lhcgr-/- mice. For this, we established and validated a battery of five tests, including Dark-Light Box (DLB), Y-Maze Spontaneous Alternation, Novel Object Recognition (NOR), and contextual and cued Fear Conditioning (FCT) tests. We found that 12-month-old female wild type mice display a prominent anxiety phenotype on DLB and FCT. This phenotype was not seen in 12-month-old female Lhcgr-/- mice, indicating full phenotypic rescue. Furthermore, there was no effect of LHCGR depletion on recognition memory or working spatial memory on NOR and Y-maze testing, respectively, in 12-month-old mice, notwithstanding the absence of a basal phenotype in wild type littermates. The latter data do not exclude an effect of LH on cognition documented in previous studies. Finally, 12-month-old male mice and 3-month-old male and female mice did not consistently display deficits on any test. The data collectively document, for the first time, that loss of LH signaling reverses age-related emotional disturbances, a prelude to future targeted therapies that block LH action.
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Affiliation(s)
- Steven Sims
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Orly Barak
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Vitaly Ryu
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Sari Miyashita
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Hasni Kannangara
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Funda Korkmaz
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Soleil Wizman
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Anne Macdonald
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Anisa Gumerova
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Ki Goosens
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Mone Zaidi
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Tony Yuen
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Daria Lizneva
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Tal Frolinger
- Center for Translational Medicine and Pharmacology, Departments of Pharmacological Sciences and of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
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24
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Kuo YY, Chen WT, Lin GB, Chen YM, Liu HH, Chao CY. Thermal cycling-hyperthermia ameliorates Aβ 25-35-induced cognitive impairment in C57BL/6 mice. Neurosci Lett 2023; 810:137337. [PMID: 37315732 DOI: 10.1016/j.neulet.2023.137337] [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: 03/17/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/16/2023]
Abstract
Despite continuation of some controversies, Alzheimer's disease (AD), the most common cause of dementia nowadays, has been widely believed to derive mainly from excessive β-amyloid (Aβ) aggregation, that would increase reactive oxygen species (ROS) and induce neuroinflammation, leading to neuron loss and cognitive impairment. Existing drugs on Aβ have been ineffective or offer only temporary relief at best, due to blood-brain barrier or severe side effects. The study employed thermal cycling-hyperthermia (TC-HT) to ease the Aβ-induced cognitive impairments and compared its effect with continuous hyperthermia (HT) in vivo. It established an AD mice model via intracerebroventricular (i.c.v.) injection of Aβ25-35, proving that TC-HT is much more effective in alleviating its performance decline in Y-maze and novel object recognition (NOR) tests, in comparison with HT. In addition, TC-HT also exhibits a better performance in decreasing the hippocampal Aβ and β-secretase (BACE1) expressions as well as the neuroinflammation markers-ionized calcium-binding adapter molecule 1 (Iba-1) and glial fibrillary acidic protein (GFAP) levels. Furthermore, the study finds that TC-HT can elevate more protein expressions of insulin degrading enzyme (IDE) and antioxidative enzyme superoxide dismutase 2 (SOD2) than HT. In sum, the study proves the potential of TC-HT in AD treatment, which can be put into application with the use of focused ultrasound (FUS).
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Affiliation(s)
- Yu-Yi Kuo
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan
| | - Wei-Ting Chen
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan
| | - Guan-Bo Lin
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan
| | - You-Ming Chen
- Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan; Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei 10617, Taiwan
| | - Hsu-Hsiang Liu
- Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan; Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei 10617, Taiwan
| | - Chih-Yu Chao
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan; Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei 10617, Taiwan.
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25
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Wang Q, Zhang X, Guo YJ, Pang YY, Li JJ, Zhao YL, Wei JF, Zhu BT, Tang JX, Jiang YY, Meng J, Yue JR, Lei P. Scopolamine causes delirium-like brain network dysfunction and reversible cognitive impairment without neuronal loss. Zool Res 2023; 44:712-724. [PMID: 37313848 PMCID: PMC10415773 DOI: 10.24272/j.issn.2095-8137.2022.473] [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: 03/05/2023] [Accepted: 06/05/2023] [Indexed: 06/15/2023] Open
Abstract
Delirium is a severe acute neuropsychiatric syndrome that commonly occurs in the elderly and is considered an independent risk factor for later dementia. However, given its inherent complexity, few animal models of delirium have been established and the mechanism underlying the onset of delirium remains elusive. Here, we conducted a comparison of three mouse models of delirium induced by clinically relevant risk factors, including anesthesia with surgery (AS), systemic inflammation, and neurotransmission modulation. We found that both bacterial lipopolysaccharide (LPS) and cholinergic receptor antagonist scopolamine (Scop) induction reduced neuronal activities in the delirium-related brain network, with the latter presenting a similar pattern of reduction as found in delirium patients. Consistently, Scop injection resulted in reversible cognitive impairment with hyperactive behavior. No loss of cholinergic neurons was found with treatment, but hippocampal synaptic functions were affected. These findings provide further clues regarding the mechanism underlying delirium onset and demonstrate the successful application of the Scop injection model in mimicking delirium-like phenotypes in mice.
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Affiliation(s)
- Qing Wang
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xiang Zhang
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yu-Jie Guo
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ya-Yan Pang
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Jun-Jie Li
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Yan-Li Zhao
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jun-Fen Wei
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Bai-Ting Zhu
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jing-Xiang Tang
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yang-Yang Jiang
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jie Meng
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ji-Rong Yue
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China. E-mail:
| | - Peng Lei
- Department of Geriatrics and State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China. E-mail:
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Gohar A, Ali G, Rashid U, Rauf K, Arif M, Khan MS, Alkahramaan YMSA, Sewell RDE. Effect of Gabapentin-Fluoxetine Derivative GBP1F in a Murine Model of Depression, Anxiety and Cognition. Drug Des Devel Ther 2023; 17:1793-1803. [PMID: 37346999 PMCID: PMC10281524 DOI: 10.2147/dddt.s407229] [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: 03/08/2023] [Accepted: 05/26/2023] [Indexed: 06/23/2023] Open
Abstract
Background and Objective Gabapentin is a commonly prescribed antiepileptic agent for seizures, which is also used for pain and addiction management. Due to growing evidence of its abuse liability, there has been an incentive to synthesise potentially useful gabapentin derivatives devoid of adverse effects. A gabapentin adduct with a fluoxetine moiety, GBP1F, was assessed for any sedative, cognitive, anxiolytic, or antidepressant-like actions in murine behavioral models. Materials and Methods Selected groups of mice were used for each behavioral paradigm, and the effect of GBP1F (5, 10, and 15 mg/kg) was assessed using spontaneous locomotor activity, the tail suspension test, elevated plus maze test, and the Y maze test models. Immediately following behavioral experiments, postmortem striatal and hippocampal tissues were evaluated for the effect of GBP1F on concentrations of dopamine, DOPAC, HVA, serotonin, 5-HIAA, vitamin C, and noradrenaline using high performance liquid chromatography with electrochemical detection. Results GBP1F induced a mild suppression of locomotor activity, ameliorated anxiety and depression-like behavior, did not alter cognitive behavior, and raised serotonin and 5-HIAA concentrations in the hippocampus and striatum. GBP1F also positively enhanced dopamine and vitamin C tissue levels in the striatum. Thus, GBP1F represents a compound with anxiolytic- and antidepressant-like effects though further studies are warranted at the molecular level to focus on the precise mechanism(s) of action.
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Affiliation(s)
- Aneela Gohar
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Umer Rashid
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus, Abbottabad, Pakistan
| | - Khalid Rauf
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Mehreen Arif
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Muhammad Sona Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | | | - Robert D E Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK
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Datta A, Suthar P, Sarmah D, Jadhav P, Shah J, Katamneni M, Bhosale N, Gupta V, Bohra M, Baidya F, Rana N, Ghosh B, Kaur H, Borah A, Rathod R, Sengupta P, Bhattacharya P. Inosine attenuates post-stroke neuroinflammation by modulating inflammasome mediated microglial activation and polarization. Biochim Biophys Acta Mol Basis Dis 2023:166771. [PMID: 37286144 DOI: 10.1016/j.bbadis.2023.166771] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/22/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023]
Abstract
To date, various agents and molecules have been developed to treat post-stroke neuroinflammation; however, none of them are clinically successful. Post-stroke neuroinflammation is primarily attributed to microglial polarization as the generation of inflammasome complexes shifts microglia to their M1 phenotype and regulate the downstream cascade. Inosine, an adenosine derivative reported to maintain cellular energy homeostasis in stressed condition. Although, the exact mechanism is still unexplored, various studies have reported that it can stimulate axonal sprouting in different neurodegenerative diseases. Hence, our present study aims to decipher the molecular mechanism of inosine mediated neuroprotection by modulating inflammasome signaling towards altered microglial polarization in ischemic stroke. Inosine was administered intraperitoneally to male Sprague Dawley rats at 1 h post ischemic stroke and were further evaluated for neurodeficit score, motor coordination and long-term neuroprotection. Brains were harvested for infarct size estimation, biochemical assays and molecular studies. Inosine administration at 1 h post ischemic stroke decreased infarct size, neurodeficit score, and improved motor co-ordination. Normalization of biochemical parameters were achieved in the treatment groups. Microglial polarization towards its anti-inflammatory phenotype and modulation of inflammation were evident by relevant gene and protein expression studies. The outcome provides preliminary evidence of inosine mediated alleviation of post-stroke neuroinflammation via modulation of microglial polarization towards its anti-inflammatory form through regulating the inflammasome activation.
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Affiliation(s)
- Aishika Datta
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Pramod Suthar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Deepaneeta Sarmah
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Poonam Jadhav
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Jinagna Shah
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Mounika Katamneni
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Nikhil Bhosale
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Vishal Gupta
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Mariya Bohra
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Falguni Baidya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Nikita Rana
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Bijoyani Ghosh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Harpreet Kaur
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Anupom Borah
- Cellular and Molecular Neurobiology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar 788011, Assam, India
| | - Rajeshwari Rathod
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Pinaki Sengupta
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Pallab Bhattacharya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India.
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Kudara M, Kato-Ishikura E, Ikegaya Y, Matsumoto N. Ramelteon administration enhances novel object recognition and spatial working memory in mice. J Pharmacol Sci 2023; 152:128-135. [PMID: 37169477 DOI: 10.1016/j.jphs.2023.04.002] [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: 11/18/2022] [Revised: 03/17/2023] [Accepted: 04/10/2023] [Indexed: 05/13/2023] Open
Abstract
Ramelteon is used to ameliorate sleep disorders that negatively affect memory performance; however, it remains unknown whether ramelteon strengthens neutral memories, which do not involve reward or punishment. To address this, we monitored behavior of mice treated with vehicle/ramelteon while they performed a novel object recognition task and a spontaneous alternation task. Object memory performance in the novel object recognition task was improved only if ramelteon was injected before training, suggesting that ramelteon specifically enhances the acquisition of object recognition memory. Ramelteon also enhanced spatial working memory in the spontaneous alternation task. Altogether, acute ramelteon treatment enhances memory in quasi-natural contexts.
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Affiliation(s)
- Mikuru Kudara
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Eriko Kato-Ishikura
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yuji Ikegaya
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan; Institute for AI and Beyond, The University of Tokyo, Tokyo 113-0033, Japan; Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita City, Osaka, 565-0871, Japan
| | - Nobuyoshi Matsumoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan; Institute for AI and Beyond, The University of Tokyo, Tokyo 113-0033, Japan.
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Ismail A, Sial N, Rehman R, Abid S, Ismail MS. Survival, growth, behavior, hematology and serum biochemistry of mice under different concentrations of orally administered amorphous silica nanoparticle. Toxicol Rep 2023; 10:659-668. [PMID: 37274627 PMCID: PMC10238806 DOI: 10.1016/j.toxrep.2023.05.006] [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: 03/16/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 06/06/2023] Open
Abstract
Silica nanoparticles (SiNPs) are used extensively in consumer products and biomedical research basically due to ease of production and low cost. However, insufficient literature is reported regarding the toxicity and biocompatibility of SiNPs. The present study aimed to investigate the potential role of amorphous SiNPs on survival, growth, behavioral alterations, hematology and serum biochemistry of mice at four concentrations (control, 50, 100 and 150 mg/kg/day) of an oral supplementation for a period of 3 months. Signs of toxicity (lethargy, nausea, coma, tremors, vomiting and diarrhea, etc.) were noted at 9:00 am and 9:00 pm (twice a day) and the body weight of each of these mice was measured every week. The data were subjected to mean, standard deviation (S.D). Moreover, One-Way Analysis of Variance (ANOVA) and Dunnett's test were applied for analysis of statistical significance between groups by using SPSS software, version 20. All the mice survived with minor alterations in behavior and no significant weight changes were observed during the stipulated time period. Complete blood count (CBC) analysis indicated non-significant (P ≥ 0.05) systemic dysfunctions of organ systems. However, there was elevation in the level of AST and ALT in the analysis of serum biochemistry, while the values of all other examined parameters were not-significant (P ≥ 0.05). The study concluded that orally administered large silica nanoparticles up to the dose level of 150 mg/kg/day are nontoxic for the in vivo use in mice.
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Affiliation(s)
- Amna Ismail
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Nuzhat Sial
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Rakhshanda Rehman
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Sobia Abid
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Muhammad Shoaib Ismail
- Department of Agronomy, Muhammad Nawaz Shareef University of Agriculture Multan, Pakistan
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Santos-García I, Rodríguez-Cueto C, Villegas P, Piscitelli F, Lauritano A, Shen CKJ, Di Marzo V, Fernández-Ruiz J, de Lago E. Preclinical investigation in FAAH inhibition as a neuroprotective therapy for frontotemporal dementia using TDP-43 transgenic male mice. J Neuroinflammation 2023; 20:108. [PMID: 37149645 PMCID: PMC10163746 DOI: 10.1186/s12974-023-02792-z] [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: 08/24/2022] [Accepted: 04/24/2023] [Indexed: 05/08/2023] Open
Abstract
BACKGROUND Frontotemporal dementia (FTD) is a heterogeneous group of early onset and progressive neurodegenerative disorders, characterized by degeneration in the frontal and temporal lobes, which causes deterioration in cognition, personality, social behavior and language. Around 45% of the cases are characterized by the presence of aggregates of the RNA-binding protein TDP-43. METHODS In this study, we have used a murine model of FTD that overexpresses this protein exclusively in the forebrain (under the control of the CaMKIIα promoter) for several biochemical, histological and pharmacological studies focused on the endocannabinoid system. RESULTS These mice exhibited at postnatal day 90 (PND90) important cognitive deficits, signs of emotional impairment and disinhibited social behaviour, which were, in most of cases, maintained during the first year of life of these animals. Motor activity was apparently normal, but FTD mice exhibited higher mortality. Their MRI imaging analysis and their ex-vivo histopathological evaluation proved changes compatible with atrophy (loss of specific groups of pyramidal neurons: Ctip2- and NeuN-positive cells) and inflammatory events (astroglial and microglial reactivities) in both cortical (medial prefrontal cortex) and subcortical (hippocampus) structures at PND90 and also at PND365. The analysis of the endocannabinoid system in these mice proved a decrease in the hydrolysing enzyme FAAH in the prefrontal cortex and the hippocampus, with an increase in the synthesizing enzyme NAPE-PLD only in the hippocampus, responses that were accompanied by modest elevations in anandamide and related N-acylethanolamines. The potentiation of these elevated levels of anandamide after the pharmacological inactivation of FAAH with URB597 resulted in a general improvement in behaviour, in particular in cognitive deterioration, associated with the preservation of pyramidal neurons of the medial prefrontal cortex and the CA1 layer of the hippocampus, and with the reduction of gliosis in both structures. CONCLUSIONS Our data confirmed the potential of elevating the endocannabinoid tone as a therapy against TDP-43-induced neuropathology in FTD, limiting glial reactivity, preserving neuronal integrity and improving cognitive, emotional and social deficits.
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Affiliation(s)
- Irene Santos-García
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense, 28040, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Carmen Rodríguez-Cueto
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense, 28040, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Patricia Villegas
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense, 28040, Madrid, Spain
| | - Fabiana Piscitelli
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale Delle Ricerche Pozzuoli, Naples, Italy
| | - Anna Lauritano
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale Delle Ricerche Pozzuoli, Naples, Italy
| | - Che-Kun J Shen
- The PhD Program for Neural Regenerative Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Vincenzo Di Marzo
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale Delle Ricerche Pozzuoli, Naples, Italy
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, CRIUCPQ and INAF, Centre NUTRISS, Faculties of Medicine and Agriculture and Food Sciences, Université Laval, Quebéc City, QC, G1V 0A6, Canada
| | - Javier Fernández-Ruiz
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense, 28040, Madrid, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
| | - Eva de Lago
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense, 28040, Madrid, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
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Faisal M, Aid J, Nodirov B, Lee B, Hickey MA. Preclinical trials in Alzheimer's disease: Sample size and effect size for behavioural and neuropathological outcomes in 5xFAD mice. PLoS One 2023; 18:e0281003. [PMID: 37036878 PMCID: PMC10085059 DOI: 10.1371/journal.pone.0281003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 01/13/2023] [Indexed: 04/11/2023] Open
Abstract
5xFAD transgenic (TG) mice are used widely in AD preclinical trials; however, data on sample sizes are largely unaddressed. We therefore performed estimates of sample sizes and effect sizes for typical behavioural and neuropathological outcome measures in TG 5xFAD mice, based upon data from single-sex (female) groups. Group-size estimates to detect normalisation of TG body weight to WT littermate levels at 5.5m of age were N = 9-15 depending upon algorithm. However, by 1 year of age, group sizes were small (N = 1 -<6), likely reflecting the large difference between genotypes at this age. To detect normalisation of TG open-field hyperactivity to WT levels at 13-14m, group sizes were also small (N = 6-8). Cued learning in the Morris water maze (MWM) was normal in Young TG mice (5m of age). Mild deficits were noted during MWM spatial learning and memory. MWM reversal learning and memory revealed greater impairment, and groups of up to 22 TG mice were estimated to detect normalisation to WT performance. In contrast, Aged TG mice (tested between 13 and 14m) failed to complete the visual learning (non-spatial) phase of MWM learning, likely due to a failure to recognise the platform as an escape. Estimates of group size to detect normalisation of this severe impairment were small (N = 6-9, depending upon algorithm). Other cognitive tests including spontaneous and forced alternation and novel-object recognition either failed to reveal deficits in TG mice or deficits were negligible. For neuropathological outcomes, plaque load, astrocytosis and microgliosis in frontal cortex and hippocampus were quantified in TG mice aged 2m, 4m and 6m. Sample-size estimates were ≤9 to detect the equivalent of a reduction in plaque load to the level of 2m-old TG mice or the equivalent of normalisation of neuroinflammation outcomes. However, for a smaller effect size of 30%, larger groups of up to 21 mice were estimated. In light of published guidelines on preclinical trial design, these data may be used to provide provisional sample sizes and optimise preclinical trials in 5xFAD TG mice.
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Affiliation(s)
- Mahvish Faisal
- Department of Pharmacology, Institute of Biomedicine and
Translational Medicine, University of Tartu, Tartu, Estonia
| | - Jana Aid
- Department of Pharmacology, Institute of Biomedicine and
Translational Medicine, University of Tartu, Tartu, Estonia
| | - Bekzod Nodirov
- Department of Pharmacology, Institute of Biomedicine and
Translational Medicine, University of Tartu, Tartu, Estonia
| | - Benjamin Lee
- Department of Pharmacology, Institute of Biomedicine and
Translational Medicine, University of Tartu, Tartu, Estonia
| | - Miriam A. Hickey
- Department of Pharmacology, Institute of Biomedicine and
Translational Medicine, University of Tartu, Tartu, Estonia
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A PDK-1 allosteric agonist improves spatial learning and memory in a βAPP/PS-1 transgenic mouse-high fat diet intervention model of Alzheimer's disease. Behav Brain Res 2023; 438:114183. [PMID: 36404570 DOI: 10.1016/j.bbr.2022.114183] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 10/11/2022] [Accepted: 10/26/2022] [Indexed: 12/13/2022]
Abstract
Diabetes mellitus (DM), peripheral insulin resistance (IR) and obesity are clear risk factors for Alzheimer's disease. Several anti-diabetic drugs and insulin have been tested in rodents and humans with MCI or AD, yielding promising but inconclusive results. The PDK-1/Akt axis, essential to the action of insulin, has not however been pharmacologically interrogated to a similar degree. Our previous cell culture and in vitro studies point to such an approach. Double transgenic APPsw/PSENdE9 mice, a model for Alzheimer's disease, were used to test the oral administration of PS48, a PDK-1 agonist, on preventing the expected decline in learning and memory in the Morris Water Maze (MWM). Mice were raised on either standard (SD) or high fat (HFD) diets, dosed beginning 10 months age and tested at an advanced age of 14 months. PS48 had positive effects on learning the spatial location of a hidden platform in the TG animals, on either SD or HFD, compared to vehicle diet and WT animals. On several measures of spatial memory following successful acquisition (probe trials), the drug also proved significantly beneficial to animals on either diet. The PS48 treatment-effect size was more pronounced in the TG animals on HFD compared to on SD in several of the probe measures. HFD produced some of the intended metabolic effects of weight gain and hyperglycemia, as well as accelerating cognitive impairment in the TG animals. PS48 was found to have added value in modestly reducing body weights and improving OGTT responses in TG groups although results were not definitive. PS48 was well tolerated without obvious clinical signs or symptoms and did not itself affect longevity. These results recommend a larger preclinical study before human trial.
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Modulatory Role of Curcumin on Cobalt-Induced Memory Deficit, Hippocampal Oxidative Damage, Astrocytosis, and Nrf2 Expression. Neurotox Res 2023; 41:201-211. [PMID: 36692684 DOI: 10.1007/s12640-023-00635-6] [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: 09/26/2022] [Revised: 11/13/2022] [Accepted: 11/26/2022] [Indexed: 01/25/2023]
Abstract
Chemical overexposure is a growing environmental risk factor for many medical issues. Cobalt toxicity from environmental, industrial, and medical exposure has previously been linked to neurological impairment. Hence, the current study looked into the neuroprotective potential of curcumin, a natural polyphenol contained in the spice turmeric, against cobalt-induced neurotoxicity. Adult rats were randomly divided into six groups as follows: control, 40 mg/kg cobalt chloride (CoCl2) only, 240 mg/kg curcumin only, 120 mg/kg or 240 mg/kg curcumin, or 100 mg/kg vitamin C co-administered with CoCl2. The administration was via oral route daily for 4 weeks. After that, neurobehavioral tests were undertaken to evaluate short-term spatial memory. Biochemical investigation was performed to determine the hippocampal levels of status via measures of SOD, CAT, GST, and LPO. Furthermore, immunohistochemical assessment of the expression of GFAP and Nrf2 in the hippocampus was carried out. In the CoCl2 group, the results showed altered behavioral responses, a decrease in antioxidant activities, increased expression of GFAP and the number of activated astrocytes, and decreased immunoexpression of Nrf2. These effects were mitigated in the curcumin- and vitamin C-treated groups. These results collectively imply that curcumin enhances memory functions in rats exposed to cobalt possibly by attenuating oxidative responses, mitigating astrocytosis, and modulating Nrf2 signaling.
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Hsieh CT, Yen TL, Chen YH, Jan JS, Teng RD, Yang CH, Sun JM. Aging-Associated Thyroid Dysfunction Contributes to Oxidative Stress and Worsened Functional Outcomes Following Traumatic Brain Injury. Antioxidants (Basel) 2023; 12:antiox12020217. [PMID: 36829776 PMCID: PMC9952686 DOI: 10.3390/antiox12020217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/20/2023] Open
Abstract
The incidence of traumatic brain injury (TBI) increases dramatically with advanced age and accumulating evidence indicates that age is one of the important predictors of an unfavorable prognosis after brain trauma. Unfortunately, thus far, evidence-based effective therapeutics for geriatric TBI is limited. By using middle-aged animals, we first confirm that there is an age-related change in TBI susceptibility manifested by increased inflammatory events, neuronal death and impaired functional outcomes in motor and cognitive behaviors. Since thyroid hormones function as endogenous regulators of oxidative stress, we postulate that age-related thyroid dysfunction could be a crucial pathology in the increased TBI severity. By surgically removing the thyroid glands, which recapitulates the age-related increase in TBI-susceptible phenotypes, we provide direct evidence showing that endogenous thyroid hormone-dependent compensatory regulation of antioxidant events modulates individual TBI susceptibility, which is abolished in aged or thyroidectomized individuals. The antioxidant capacity of melatonin is well-known, and we found acute melatonin treatment but not liothyronine (T3) supplementation improved the TBI-susceptible phenotypes of oxidative stress, excitotoxic neuronal loss and promotes functional recovery in the aged individuals with thyroid dysfunction. Our study suggests that monitoring thyroid function and acute administration of melatonin could be feasible therapeutics in the management of geriatric-TBI in clinic.
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Affiliation(s)
- Cheng-Ta Hsieh
- Division of Neurosurgery, Department of Surgery, Sijhih Cathay General Hospital, New Taipei City 22174, Taiwan
- School of Medicine, National Tsing Hua University, Hsinchu 300044, Taiwan
- Department of Medicine, School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Ting-Lin Yen
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, No. 250, Wu Hsing St., Taipei 110, Taiwan
- Department of Medical Research, Cathay General Hospital, Taipei 22174, Taiwan
| | - Yu-Hao Chen
- Chung-Jen Junior College of Nursing, Health Sciences and Management, Chia-Yi City 62241, Taiwan
- Section of Neurosurgery, Department of Surgery, Ditmanson Medical Foundation, Chia-Yi Christian Hospital, Chia-Yi City 600, Taiwan
- Department of Biotechnology, Asia University, Taichung City 41354, Taiwan
| | - Jing-Shiun Jan
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, No. 250, Wu Hsing St., Taipei 110, Taiwan
| | - Ruei-Dun Teng
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, No. 250, Wu Hsing St., Taipei 110, Taiwan
| | - Chih-Hao Yang
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, No. 250, Wu Hsing St., Taipei 110, Taiwan
| | - Jui-Ming Sun
- Section of Neurosurgery, Department of Surgery, Ditmanson Medical Foundation, Chia-Yi Christian Hospital, Chia-Yi City 600, Taiwan
- Department of Biotechnology, Asia University, Taichung City 41354, Taiwan
- Correspondence:
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Jung H, Lee Y, Lee SH, Sohn JH. Auditory or Audiovisual Stimulation Ameliorates Cognitive Impairment and Neuropathology in ApoE4 Knock-In Mice. Int J Mol Sci 2023; 24:ijms24020938. [PMID: 36674449 PMCID: PMC9863367 DOI: 10.3390/ijms24020938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
We hypothesized that auditory stimulation could reduce the progression of Alzheimer’s disease (AD), and that audiovisual stimulation could have additional effects through multisensory integration. We exposed 12 month old Apoetm1.1(APOE*4)Adiuj mice (a mouse model of sporadic AD) to auditory (A) or audiovisual stimulation (AV) at 40 Hz for 14 days in a soundproof chamber system (no stimulation, N). Behavioral tests were performed before and after each session, and their brain tissues were assessed for amyloid-beta expression and apoptotic cell death, after 14 days. Furthermore, brain levels of acetylcholine and apoptosis-related proteins were analyzed. In the Y-maze test, the percentage relative alternation was significantly higher in group A than in group N mice. Amyloid-beta and TUNEL positivity in the hippocampal CA3 region was significantly lower in group A and group AV mice than in group N mice (p < 0.05). Acetylcholine levels were significantly higher in group A and group AV mice than in group N mice (p < 0.05). Compared to group N mice, expression of the proapoptotic proteins Bax and caspase-3 was lower in group A, and expression of the antiapoptotic protein Bcl-2 was higher in group AV. In a mouse model of early-stage sporadic AD, auditory or audiovisual stimulation improved cognitive performance and neuropathology.
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Affiliation(s)
- Harry Jung
- Institute of New Frontier Research Team, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| | - Yeonkyeong Lee
- Institute of New Frontier Research Team, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| | - Sang-Hwa Lee
- Institute of New Frontier Research Team, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Neurology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon 24252, Republic of Korea
| | - Jong-Hee Sohn
- Institute of New Frontier Research Team, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Neurology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon 24252, Republic of Korea
- Correspondence:
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Elkasabgy NA, Salama A, Salama AH. Exploring the effect of intramuscularly injected polymer/lipid hybrid nanoparticles loaded with quetiapine fumarate on the behavioral and neurological changes in cuprizone-induced schizophrenia in mice. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Li S, Zheng Y, Xiao L, Lan S, Xiang J, Liao L, Lin Y, Ye Y. Aldehyde dehydrogenase 2-associated changes in pharmacokinetics, locomotor function and peripheral glutamic acid and gamma-aminobutyric acid levels during acute alcohol intoxication in male mice. Behav Pharmacol 2022; 33:551-558. [PMID: 36256704 DOI: 10.1097/fbp.0000000000000702] [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: 12/14/2022]
Abstract
The insufficiency of human aldehyde dehydrogenase 2 (ALDH2) has been consistently associated with high blood acetaldehyde levels and impaired locomotor function during acute alcohol intoxication. The ALDH2-associated change in peripheral glutamic acid (Glu) and gamma-aminobutyric acid (GABA) levels and its correlation with pharmacokinetics and psychomotor function remain unclear. In this study, ALDH2*2 mice were used to build an acute alcohol intoxication model after intraperitoneal administration. The blood ethanol and acetaldehyde concentrations were analyzed to generate concentration-time curves at two doses of alcohol (2.0 and 4.0 g/kg). The dose of 4.0 g/kg was selected in accordance with the preliminary behavioral evaluation result to perform the following behavioral tests (e.g. the rotarod test, the open field test, and the Y-maze test), so as to assess locomotor activity, anxiety and cognitive ability. Plasma Glu and GABA levels were determined through enzyme-linked immunosorbent assays. The results suggested that the ALDH2*2 mice had highly accumulated acetaldehyde levels, impaired locomotor activity and anxiety-like emotion but unimpaired cognitive function, compared to the wild type (WT) mice. The plasma Glu level and the ratio of Glu/GABA in the alcohol-treated WT and ALDH2*2 groups decreased from 2 to 5 h after intraperitoneal administration, whereas the GABA level did not change significantly. The blood alcohol concentration in the WT and ALDH2*2 mice was positively correlated with plasma Glu level, whereas the blood acetaldehyde level was found as the opposite. We speculate that the decline degree of Glu/GABA ratio could be associated with psychomotor retardation and needs to be further investigated.
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Affiliation(s)
- Songfan Li
- Shanghai Key Laboratory of Forensic Medicine, Shanghai
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yuzi Zheng
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Li Xiao
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Shengnan Lan
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jin Xiang
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Linchuan Liao
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yao Lin
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yi Ye
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
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Al-Hakim NA, Fidrianny I, Anggadiredja K, Mauludin R. Effect of Banana ( Musa sp.) Peels Extract in Nanoemulsion Dosage Forms for the Improvement of Memory: In Vitro & In Vivo Studies. Pharm Nanotechnol 2022; 10:299-309. [PMID: 35466890 PMCID: PMC9900702 DOI: 10.2174/2211738510666220422135519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/09/2022] [Accepted: 03/04/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Banana (Musa sp.) is a plant rich in phytochemical compounds, especially antioxidants, which are hypothesized to inhibit the activity of acetylcholinesterase, an enzyme associated with Alzheimer's Disease. OBJECTIVE This research aimed to study nanoemulsion preparations of Kepok banana (KEP-NE) and Tanduk banana (TAN-NE) peel extracts for their activities as antioxidants, acetylcholinesterase as well as tyrosinase inhibitors, and as agents to improve short-term memory. METHODS Nanoemulsion was prepared using a combination of high shear homogenization and ultrasonication. The antioxidant activity test was carried out using DPPH and ABTS methods. Meanwhile, memory improvement was studied in a mouse model with memory impairment induced by alloxan (120 mg/kg b.w) using the Y-maze apparatus. ELISA performed determination of acetylcholinesterase and tyrosinase inhibition. RESULTS Characterization of the nanoemulsion was performed to include particle size, antioxidant activity, acetylcholinesterase, and tyrosinase inhibition. The particle size and polydispersity index (PI) of KEP-NE and TAN-NE were 84.2 nm (PI: 0.280) and 94.1 nm (PI: 0.282), respectively. The antioxidant activity of DPPH showed that the respective IC50 values of KEP-NE and TAN-NE were 0.64 μg/mL and 1.97 μg/mL. At the same time, the values with the ABTS method were 1.10 μg/mL and 1.72 μg/mL, respectively. The IC50 of KEP-NE on acetylcholinesterase inhibition was 108.80 μg/mL, and that on tyrosinase inhibition was 251.47 μg/mL. The study of short-term memory in the Y-maze revealed that the groups Kepok peel extracts 100 and 300 mg/kg b.w and KEP-NE 100 and 300 mg/kg b.w significantly (P < 0.05) improved short-term memory. CONCLUSION This study suggests that the nanoemulsion dosage form of Kepok banana peel extract has antioxidant and acetylcholinesterase inhibition and tyrosinase inhibition activities and could potentially be an adjunct alternative treatment for memory disorders. Modifying the smaller drug particle size contributes to the delivery system. The nanoemulsion can increase pharmacological activity.
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Affiliation(s)
- Nur Achsan Al-Hakim
- School of Pharmacy, Bandung Institute of Technology, Bandung, 40132, Indonesia
| | - Irda Fidrianny
- School of Pharmacy, Bandung Institute of Technology, Bandung, 40132, Indonesia
| | | | - Rachmat Mauludin
- School of Pharmacy, Bandung Institute of Technology, Bandung, 40132, Indonesia,Address correspondence to this author at the School of Pharmacy, Bandung Institute of Technology, Ganesha 10 Bandung, 40132, Indonesia; Tel: +62-22 250 4852, E-mail:
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Bibineyshvili Y, Schiff ND, Calderon DP. Dexmedetomidine-mediated sleep phase modulation ameliorates motor and cognitive performance in a chronic blast-injured mouse model. Front Neurol 2022; 13:1040975. [DOI: 10.3389/fneur.2022.1040975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022] Open
Abstract
Multiple studies have shown that blast injury is followed by sleep disruption linked to functional sequelae. It is well established that improving sleep ameliorates such functional deficits. However, little is known about longitudinal brain activity changes after blast injury. In addition, the effects of directly modulating the sleep/wake cycle on learning task performance after blast injury remain unclear. We hypothesized that modulation of the sleep phase cycle in our injured mice would improve post-injury task performance. Here, we have demonstrated that excessive sleep electroencephalographic (EEG) patterns are accompanied by prominent motor and cognitive impairment during acute stage after secondary blast injury (SBI) in a mouse model. Over time we observed a transition to more moderate and prolonged sleep/wake cycle disturbances, including changes in theta and alpha power. However, persistent disruptions of the non-rapid eye movement (NREM) spindle amplitude and intra-spindle frequency were associated with lasting motor and cognitive deficits. We, therefore, modulated the sleep phase of injured mice using subcutaneous (SC) dexmedetomidine (Dex), a common, clinically used sedative. Dex acutely improved intra-spindle frequency, theta and alpha power, and motor task execution in chronically injured mice. Moreover, dexmedetomidine ameliorated cognitive deficits a week after injection. Our results suggest that SC Dex might potentially improve impaired motor and cognitive behavior during daily tasks in patients that are chronically impaired by blast-induced injuries.
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Yang YS, He SL, Chen WC, Wang CM, Huang QM, Shi YC, Lin S, He HF. Recent progress on the role of non-coding RNA in postoperative cognitive dysfunction. Front Cell Neurosci 2022; 16:1024475. [PMID: 36313620 PMCID: PMC9608859 DOI: 10.3389/fncel.2022.1024475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 09/30/2022] [Indexed: 11/13/2022] Open
Abstract
Postoperative cognitive dysfunction (POCD), especially in elderly patients, is a serious complication characterized by impairment of cognitive and sensory modalities after surgery. The pathogenesis of POCD mainly includes neuroinflammation, neuronal apoptosis, oxidative stress, accumulation of Aβ, and tau hyperphosphorylation; however, the exact mechanism remains unclear. Non-coding RNA (ncRNA) may play an important role in POCD. Some evidence suggests that microRNA, long ncRNA, and circular RNA can regulate POCD-related processes, making them promising biomarkers in POCD diagnosis, treatment, and prognosis. This article reviews the crosstalk between ncRNAs and POCD, and systematically discusses the role of ncRNAs in the pathogenesis and diagnosis of POCD. Additionally, we explored the possible mechanisms of ncRNA-associated POCD, providing new knowledge for developing ncRNA-based treatments for POCD.
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Affiliation(s)
- Yu-Shen Yang
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Shi-Ling He
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Wei-Can Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Cong-Mei Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Qiao-Mei Huang
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Yan-Chuan Shi
- Neuroendocrinology Group, Garvan Institute of Medical Research, Sydney, NSW, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, NSW, Australia
- *Correspondence: Yan-Chuan Shi,
| | - Shu Lin
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
- Neuroendocrinology Group, Garvan Institute of Medical Research, Sydney, NSW, Australia
- Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
- Shu Lin,
| | - He-fan He
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
- He-fan He,
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Kundu P, Holden S, Paraiso IL, Sudhakar R, McQuesten C, Choi J, Miranda CL, Maier CS, Bobe G, Stevens JF, Raber J. ApoE isoform-dependent effects of xanthohumol on high fat diet-induced cognitive impairments and hippocampal metabolic pathways. Front Pharmacol 2022; 13:954980. [PMID: 36278228 PMCID: PMC9583926 DOI: 10.3389/fphar.2022.954980] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/25/2022] [Indexed: 11/25/2022] Open
Abstract
Consumption of a high fat diet (HFD) is linked to metabolic syndrome and cognitive impairments. This is exacerbated in age-related cognitive decline (ACD) and in individuals with a genetic risk for Alzheimer's disease (AD). Apolipoprotein E (apoE) is involved in cholesterol metabolism. In humans, there are three major isoforms, E2, E3, and E4. Compared to E3, E4 increases ACD and AD risk and vulnerability to the deleterious cognitive effects of a HFD. The plant compound Xanthohumol (XN) had beneficial effects on cognition and metabolism in C57BL/6J wild-type (WT) male mice put on a HFD at 9 weeks of age for 13 weeks. As the effects of XN in the context of a HFD in older WT, E3, and E4 female and male mice are not known, in the current study male and female WT, E3, and E4 mice were fed a HFD alone or a HFD containing 0.07% XN for 10 or 19 weeks, starting at 6 months of age, prior to the beginning of behavioral and cognitive testing. XN showed sex- and ApoE isoform-dependent effects on cognitive performance. XN-treated E4 and WT, but not E3, mice had higher glucose transporter protein levels in the hippocampus and cortex than HFD-treated mice. E3 and E4 mice had higher glucose transporter protein levels in the hippocampus and lower glucose transporter protein levels in the cortex than WT mice. In the standard experiment, regardless of XN treatment, E4 mice had nearly double as high ceramide and sphingomyelin levels than E3 mice and male mice had higher level of glycosylated ceramide than female mice. When the differential effects of HFD in E3 and E4 males were assessed, the arginine and proline metabolism pathway was affected. In the extended exposure experiment, in E3 males XN treatment affected the arginine and proline metabolism and the glycine, serine, and threonine metabolism. Myristic acid levels were decreased in XN-treated E3 males but not E3 females. These data support the therapeutic potential for XN to ameliorate HFD-induced cognitive impairments and highlight the importance of considering sex and ApoE isoform in determining who might most benefit from this dietary supplement.
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Affiliation(s)
- Payel Kundu
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Sarah Holden
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Ines L. Paraiso
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States
| | - Reetesh Sudhakar
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Chloe McQuesten
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Cristobal L. Miranda
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States
| | - Claudia S. Maier
- Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR, United States
| | - Jan F. Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States
| | - Jacob Raber
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
- Departments of Neurology and Radiation Medicine, Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR, United States
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Malik S, Miana G, Ata A, Kanwal M, Maqsood S, Malik I, Kazmi Z. SYNTHESIS, CHARACTERIZATION, IN-SILICO, AND PHARMACOLOGICAL EVALUATION OF NEW 2-AMINO-6-TRIFLUOROMETHOXY BENZOTHIAZOLE DERIVATIVES. Bioorg Chem 2022; 130:106175. [PMID: 36410112 DOI: 10.1016/j.bioorg.2022.106175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/18/2022] [Accepted: 09/21/2022] [Indexed: 11/28/2022]
Abstract
Alzheimer's disease (AD), a relentless neurodegenerative disorder, is still waiting for safer profile drugs, risk factors affecting AD's pathogenesis include aβ accumulation, tau protein hyperphosphorylation, and neuroinflammation. This research aimed to synthesize 2-amino-6‑trifluoromethoxy benzothiazole schiff bases. Synthesis was straightforward, combining the riluzole skeleton with compounds containing the azomethine group. Schiff bases synthesized were characterized spectroscopically using proton NMR (1H NMR), and FTIR. In-vivo biological evaluation against scopolamine-induced neuronal damage revealed that these newly synthesized schiff bases were effective in protecting neurons against neuroinflammatory mediators. In-vitro results revealed that these compounds had remarkable potential in improving the anti-oxidant levels. It downregulated glutathione (GSH), glutathione S-transferase (GST), catalase levels, and upregulated lipid peroxidation (LPO) levels. Immunohistochemical studies revealed that groups treated with the newly synthesized schiff bases had reduced expression of inflammatory mediators such as cyclooxygenase 2 (COX-2), JNK, tumor necrosis factor (TNF-α), nuclear factor kappa B (NF-kB) in contrast to the disease group. Moreover, molecular docking studies on these compounds also showed that they possessed a better binding affinity for above mentioned inflammatory mediators. The results of these studies showed that 2-amino-6-trifluoromethoxy benzothiazole schiff bases are remarkably effective against oxidative stress-mediated neuroinflammation.
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Kandeda AK, Nodeina S, Mabou ST. An aqueous extract of Syzygium cumini protects against kainate-induced status epilepticus and amnesia: evidence for antioxidant and anti-inflammatory intervention. Metab Brain Dis 2022; 37:2581-2602. [PMID: 35916986 DOI: 10.1007/s11011-022-01052-y] [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: 11/23/2021] [Accepted: 07/12/2022] [Indexed: 10/16/2022]
Abstract
Temporal lobe epilepsy is the most common drug-resistant epilepsy. To cure epilepsy, drugs must target the mechanisms at the origin of seizures. Thus, the present investigation aimed to evaluate the antiepileptic- and anti-amnesic-like effects of an aqueous extract of Syzygium cumini against kainate-induced status epilepticus in mice, and possible mechanisms of action. Mice were divided into 7 groups and treated as follows: normal group or kainate group received po distilled water (10 mL/kg), four test groups received Syzygium cumini (28.8, 72, 144, and 288 mg/kg, po), and the positive control group treated intraperitoneally (ip) with sodium valproate (300 mg/kg). An extra group of normal mice was treated with piracetam (200 mg/kg, po). Treatments were administered 60 min before the induction of status epilepticus with kainate (15 mg/kg, ip), and continued daily throughout behavioral testing. Twenty-four hours after the induction, T-maze and Morris water maze tasks were successively performed. The animals were then sacrificed and some markers of oxidative stress and neuroinflammation were estimated in the hippocampus. The extract significantly prevented status epilepticus and mortality. In the T-maze, the aqueous extract markedly increased the time spent and the number of entries in the discriminated arm. In the Morris water maze, the extract significantly increased the time spent in the target quadrant during the retention phase. Furthermore, the aqueous extract induced a significant reduction of oxidative stress and neuroinflammation. These results suggest that the aqueous extract of Syzygium cumini has antiepileptic- and anti-amnesic-like effects, likely mediated in part by antioxidant and anti-inflammatory activities.
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Affiliation(s)
- Antoine Kavaye Kandeda
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.
- Department of Animal Biology and Physiology, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.
| | - Saleh Nodeina
- Department of Biological Sciences, Faculty of Science, University of Ngaoundéré, P.O. Box 454, Ngaoundéré, Cameroon
| | - Symphorien Talom Mabou
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
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Chen L, Wang Y, Lin J, Song Z, Wang Q, Zhao W, Wang Y, Xiu X, Deng Y, Li X, Li Q, Wang X, Li J, Liu X, Liu K, Zhou J, Li K, Liu Y, Liao S, Deng Q, Xu C, Sun Q, Wu S, Zhang K, Guan MX, Zhou T, Sun F, Cai X, Huang C, Shan G. Exportin 4 depletion leads to nuclear accumulation of a subset of circular RNAs. Nat Commun 2022; 13:5769. [PMID: 36182935 PMCID: PMC9526749 DOI: 10.1038/s41467-022-33356-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 09/09/2022] [Indexed: 12/19/2022] Open
Abstract
Numerous RNAs are exported from the nucleus, abnormalities of which lead to cellular complications and diseases. How thousands of circular RNAs (circRNAs) are exported from the nucleus remains elusive. Here, we provide lines of evidence to demonstrate a link between the conserved Exportin 4 (XPO4) and nuclear export of a subset of circRNAs in metazoans. Exonic circRNAs (ecircRNAs) with higher expression levels, larger length, and lower GC content are more sensitive to XPO4 deficiency. Cellular insufficiency of XPO4 leads to nuclear circRNA accumulation, circRNA:DNA (ciR-loop) formation, linear RNA:DNA (liR-loop) buildup, and DNA damage. DDX39 known to modulate circRNA export can resolve ciR-loop, and splicing factors involved in the biogenesis of circRNAs can also affect the levels of ciR-loop. Testis and brain are two organs with high abundance of circRNAs, and insufficient XPO4 levels are detrimental, as Xpo4 heterozygous mice display male infertility and neural phenotypes. Increased levels of ciR-loop, R-loop, and DNA damage along with decreased cell numbers are observed in testis and hippocampus of Xpo4 heterozygotes. This study sheds light on the understandings of mechanism of circRNA export and reveals the significance of efficient nuclear export of circRNAs in cellular physiology. This study identifies the evolutionarily conserved Exportin 4 as an essential regulator in the nuclear export of circRNAs. Defective circRNA export results in R-loop formation and DNA damage in cells, as well as testis and neurological defects in mice.
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Affiliation(s)
- Liang Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Yucong Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Jiamei Lin
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, 401331, China
| | - Zhenxing Song
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, 401331, China
| | - Qinwei Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Wenfang Zhao
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Yan Wang
- School of Optometry and Ophthalmology and the Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325003, China.,State Key Laboratory of Optometry, Ophthalmology, and Visual Science, 270 Xueyuan Road, Wenzhou, Zhejiang, 325003, China
| | - Xiaoyu Xiu
- School of Optometry and Ophthalmology and the Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325003, China.,State Key Laboratory of Optometry, Ophthalmology, and Visual Science, 270 Xueyuan Road, Wenzhou, Zhejiang, 325003, China
| | - Yuqi Deng
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Xiuzhi Li
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Qiqi Li
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Xiaolin Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Jingxin Li
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Xu Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Kunpeng Liu
- Center for Plant Biology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jincong Zhou
- Center for Plant Biology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Kuan Li
- Center for Plant Biology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yuchan Liu
- MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Shanhui Liao
- Division of Life Science and Medicine, CAS Key Laboratory of Structural Biology, University of Science and Technology of China, Hefei, 230027, China
| | - Qin Deng
- Analytical and Testing Center, Chongqing University, Chongqing, 400030, China
| | - Chao Xu
- Division of Life Science and Medicine, CAS Key Laboratory of Structural Biology, University of Science and Technology of China, Hefei, 230027, China
| | - Qianwen Sun
- Center for Plant Biology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Shengzhou Wu
- School of Optometry and Ophthalmology and the Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325003, China.,State Key Laboratory of Optometry, Ophthalmology, and Visual Science, 270 Xueyuan Road, Wenzhou, Zhejiang, 325003, China
| | - Kaiming Zhang
- MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Min-Xin Guan
- The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Zhejiang Provincial Key Lab of Genetic and Developmental Disorder, Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Tianhua Zhou
- Department of Cell Biology and Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Cancer Center, Institute of Gastroenterology, Zhejiang University, Hangzhou, 310016, China
| | - Fei Sun
- Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Xiujun Cai
- Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Chuan Huang
- School of Life Sciences, Chongqing University, Chongqing, 401331, China. .,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, 401331, China.
| | - Ge Shan
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China. .,Department of Pulmonary and Critical Care Medicine, Regional Medical Center for National Institute of Respiratory Diseases, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China.
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Liu M, Zeng M, Wang S, Cao B, Guo P, Zhang Y, Jia J, Zhang Q, Zhang B, Wang R, Li J, Zheng X, Feng W. Thymidine and 2'-deoxyuridine reduce microglial activation and improve oxidative stress damage by modulating glycolytic metabolism on the Aβ 25-35-induced brain injury. Arch Biochem Biophys 2022; 729:109377. [PMID: 35998686 DOI: 10.1016/j.abb.2022.109377] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/24/2022] [Accepted: 08/15/2022] [Indexed: 11/02/2022]
Abstract
Alzheimer's disease (AD) is a progressive disease with a long duration and complicated pathogenesis. Thymidine (Thy) and 2'-deoxyuridine (2'-De) are pyrimidines nucleotides that are associated with nervous system diseases. However, it remains unclear whether Thy and 2'-De exert neuroprotective effects in AD. Therefore, this study was conducted to explore the interventional effects and mechanisms of Thy and 2'-De on the Aβ25-35-induced brain injury. Donepezil (Do, 10 mg/kg/d), Thy (20 mg/kg/d), and 2'-De (20 mg/kg/d) were administered for 4 weeks after the injection of Aβ25-35 peptides (200 μM, i.c.v.) to mice. UPLC-MS/MS method was performed to quantify Thy and 2'-De in the hippocampus of mice brain. The cognition ability, neuronal and mitochondria damage, and levels of Aβ1-42/Aβ1-40, p-Tau, Na+ K+-ATPase, apoptosis, oxidative stress, immune cells, and Iba 1+ were measured in Aβ25-35-induced mice. The oxygen consumption (OCR) and extracellular acidification rate (ECAR) were measured using a seahorse analyzer in Aβ25-35-induced N9 cells. Moreover, 2-Deoxy-D-glucose (2-DG), a glycolysis inhibitor, was added to explore the mechanisms underlying the effects of Thy and 2'-De on Aβ25-35-induced N9 cells. The expression of Iba 1+ and levels of CD11b+ and reactive oxygen species (ROS) were measured after treatment with Thy (5 μM) and 2'-De (10 μM) against 2-DG (5 mM) in Aβ25-35-induced N9 cells. The results suggested that Do, Thy, and 2'-De improved the cognition ability, attenuated the damage to hippocampus and mitochondria, downregulated the levels of Aβ1-42/Aβ1-40, p-Tau, Na+ K+-ATPase, apoptosis, oxidative stress, and Iba 1+, and regulated the immune response induced by Aβ25-35 against the brain injury. Furthermore, Do, Thy, and 2'-De increased ATP production and inhibited glycolysis in Aβ25-35-induced N9 cells. Moreover, 2-DG enhanced the effects of drugs, reduced microglial activation, and attenuated oxidative stress to interfere with Aβ25-35-induced N9 cells. In conclusion, Thy and 2'-De reduced microglial activation and improved oxidative stress damage by modulating glycolytic metabolism on the Aβ25-35-induced brain injury.
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Affiliation(s)
- Meng Liu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Mengnan Zeng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Shengchao Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Bing Cao
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Pengli Guo
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Yuhan Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Jufang Jia
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Qinqin Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Beibei Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Ru Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China
| | - Jinyue Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Xiaoke Zheng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China.
| | - Weisheng Feng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, China.
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46
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Zhang Y, Ye Y, Tang X, Wang H, Tanaka T, Tian R, Yang X, Wang L, Xiao Y, Hu X, Jin Y, Pang H, Du T, Liu H, Sun L, Xiao S, Dong R, Ferrucci L, Tian Z, Zhang S. CCL17 acts as a novel therapeutic target in pathological cardiac hypertrophy and heart failure. J Exp Med 2022; 219:213274. [PMID: 35687056 PMCID: PMC9194836 DOI: 10.1084/jem.20200418] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/22/2022] [Accepted: 06/01/2022] [Indexed: 11/18/2022] Open
Abstract
Circulating proteomic signatures of age are closely associated with aging and age-related diseases; however, the utility of changes in secreted proteins in identifying therapeutic targets for diseases remains unclear. Serum proteomic profiling of an age-stratified healthy population and further community-based cohort together with heart failure patients study demonstrated that circulating C-C motif chemokine ligand 17 (CCL17) level increased with age and correlated with cardiac dysfunction. Subsequent animal experiments further revealed that Ccll7-KO significantly repressed aging and angiotensin II (Ang II)–induced cardiac hypertrophy and fibrosis, accompanied by the plasticity and differentiation of T cell subsets. Furthermore, the therapeutic administration of an anti-CCL17 neutralizing antibody inhibited Ang II–induced pathological cardiac remodeling. Our findings reveal that chemokine CCL17 is identifiable as a novel therapeutic target in age-related and Ang II–induced pathological cardiac hypertrophy and heart failure.
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Affiliation(s)
- Yang Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yicong Ye
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoqiang Tang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hui Wang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Toshiko Tanaka
- Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD
| | - Ran Tian
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xufei Yang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lun Wang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Xiao
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaomin Hu
- Department of Central Research Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ye Jin
- Department of Central Research Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haiyu Pang
- Department of Central Research Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tian Du
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Honghong Liu
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lihong Sun
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuo Xiao
- Thermo Fisher Scientific (China) Co., Ltd, Changning, Shanghai, China
| | - Ruijia Dong
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Luigi Ferrucci
- Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD
| | - Zhuang Tian
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuyang Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Central Research Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Song S, Kong X, Wang B, Sanchez-Ramos J. Administration of Δ 9-Tetrahydrocannabinol Following Controlled Cortical Impact Restores Hippocampal-Dependent Working Memory and Locomotor Function. Cannabis Cannabinoid Res 2022; 7:424-435. [PMID: 34747647 PMCID: PMC9418466 DOI: 10.1089/can.2021.0053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Hypothesis: Administration of the phytocannabinoid Δ9-tetrahydrocannabinol (Δ9-THC) will enhance brain repair and improve short-term spatial working memory in mice following controlled cortical impact (CCI) by upregulating granulocyte colony-stimulating factor (G-CSF) and other neurotrophic factors (brain-derived neurotrophic factor [BDNF], glial-derived neurotrophic factor [GDNF]) in hippocampus (HP), cerebral cortex, and striatum. Materials and Methods: C57BL/6J mice underwent CCI and were treated for 3 days with Δ9-THC 3 mg/kg intraperitoneally (i.p.). Short-term working memory was determined using the spontaneous alternations test during exploratory behavior in a Y-maze. Locomotor function was measured as latency to fall from a rotating drum (rotometry). These behaviors were recorded at baseline and 3, 7, and 14 days after CCI. Groups of mice were euthanized at 7 and 14 days. Extent of microgliosis, astrocytosis, and G-CSF, BDNF, and GDNF expression were measured at 7 and 14 days in cerebral cortex, striatum, and HP on the side of the trauma. Levels of the most abundant endocannabinoid (2-arachidonoyl-glycerol [2-AG]) was also measured at these times. Results: Δ9-THC-treated mice exhibited marked improvement in performance on the Y-maze indicating that treatment with the phytocannabinoid could reverse the deficit in working memory caused by the CCI. Δ9-THC-treated mice ran on the rotarod longer than vehicle-treated mice and recovered to normal rotarod performance levels at 2 weeks. Δ9-THC-treated mice, compared with vehicle-treated animals, exhibited significant upregulation of G-CSF as well as BDNF and GDNF in the cerebral cortex, striatum, and HP. Levels of 2-AG were also increased in the Δ9-THC-treated mice. Conclusion: Administration of the phytocannabinoid Δ9-THC promotes significant functional recovery from traumatic brain injury (TBI) in the realms of working memory and locomotor function. This beneficial effect is associated with upregulation of brain 2-AG, G-CSF, BDNF, and GDNF. The latter three neurotrophic factors have been previously shown to mediate brain self-repair following TBI and stroke.
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Affiliation(s)
- Shijie Song
- James Haley VA Medical Center and University of South Florida, Tampa, Florida, USA
- Department of Neurology, University of South Florida, Tampa, Florida, USA
| | - Xiaoyuan Kong
- James Haley VA Medical Center and University of South Florida, Tampa, Florida, USA
| | - Bangmei Wang
- James Haley VA Medical Center and University of South Florida, Tampa, Florida, USA
- Department of Neurology, University of South Florida, Tampa, Florida, USA
| | - Juan Sanchez-Ramos
- Department of Neurology, University of South Florida, Tampa, Florida, USA
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Yu XD, Li A, Li XY, Zhou Y, Li X, He Z, Wang L, Reilly J, Tan Z, Xiao ZY, Shu X. Trans-urocanic acid facilitates spatial memory, implications for Alzheimer's disease. Physiol Behav 2022; 252:113827. [PMID: 35490778 DOI: 10.1016/j.physbeh.2022.113827] [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: 01/04/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
Abstract
Trans-urocanic acid (trans-UCA) is an isomer of cis-UCA and is widely distributed in the brain, predominantly in the hippocampus and prefrontal cortex. Previous studies have investigated the role of trans-UCA in non-spatial memory; however, its influence on spatial memory remains unclear. In the present study, network pharmacology strategy and behavioral testing were used to evaluate the role of trans-UCA in spatial memory and predict its possible mechanism. The results showed that there are 40 intersecting targets between trans-UCA and spatial memory identified by several databases and Venn diagram, indicating that trans-UCA may be involved in spatial memory. Behavioral results show that trans-UCA facilitates spatial working memory in the Y-maze test as well as spatial recognition memory acquisition, consolidation and retrieval in an object location recognition (OLR) task. Furthermore, PPI (protein-protein interaction) network analysis, GO (gene ontology) and KEGG (Kyoto encyclopedia of genes and genomes) pathway enrichment analyses show that the molecular mechanisms underlying the enhancing effect of trans-UCA on spatial memory are mainly associated with the regulation of insulin, mitogen-activated protein kinase (MAPK) and nuclear factor Kappa B (NF-κB) signaling pathways, serotonergic synapse and arginine and proline metabolism. The results of this study suggest that trans-UCA facilitates spatial memory in the Y-maze test and OLR task and may offer therapeutic potential for Alzheimer's disease (AD). The underlying mechanisms predicted by network pharmacology should be further verified.
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Affiliation(s)
- Xu-Dong Yu
- School of Basic Medical Sciences, Shaoyang University, 422000, Shaoyang, China
| | - Ao Li
- School of Basic Medical Sciences, Shaoyang University, 422000, Shaoyang, China
| | - Xiao-Ya Li
- College of Chinese Medicine, Hunan University of Chinese Medicine, , 410208 Changsha, Hunan, China
| | - Yu Zhou
- School of Basic Medical Sciences, Shaoyang University, 422000, Shaoyang, China
| | - Xing Li
- School of Basic Medical Sciences, Shaoyang University, 422000, Shaoyang, China
| | - Zhiming He
- School of Basic Medical Sciences, Shaoyang University, 422000, Shaoyang, China
| | - Le Wang
- School of Basic Medical Sciences, Shaoyang University, 422000, Shaoyang, China
| | - James Reilly
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, G4 0BA, Glasgow, United Kingdom
| | - Zhoujin Tan
- College of Chinese Medicine, Hunan University of Chinese Medicine, , 410208 Changsha, Hunan, China
| | - Zhi-Yong Xiao
- The First Affiliated Hospital,Department of Critical Care Medicine,Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China.
| | - Xinhua Shu
- School of Basic Medical Sciences, Shaoyang University, 422000, Shaoyang, China; Department of Biological and Biomedical Sciences, Glasgow Caledonian University, G4 0BA, Glasgow, United Kingdom.
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49
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Nieraad H, de Bruin N, Arne O, Hofmann MCJ, Pannwitz N, Resch E, Luckhardt S, Schneider AK, Trautmann S, Schreiber Y, Gurke R, Parnham MJ, Till U, Geisslinger G. The Roles of Long-Term Hyperhomocysteinemia and Micronutrient Supplementation in the AppNL–G–F Model of Alzheimer’s Disease. Front Aging Neurosci 2022; 14:876826. [PMID: 35572151 PMCID: PMC9094364 DOI: 10.3389/fnagi.2022.876826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/01/2022] [Indexed: 11/16/2022] Open
Abstract
A causal contribution of hyperhomocysteinemia to cognitive decline and Alzheimer’s disease (AD), as well as potential prevention or mitigation of the pathology by dietary intervention, have frequently been subjects of controversy. In the present in vivo study, we attempted to further elucidate the impact of elevated homocysteine (HCys) and homocysteic acid (HCA) levels, induced by dietary B-vitamin deficiency, and micronutrient supplementation on AD-like pathology, which was simulated using the amyloid-based AppNL–G–F knock-in mouse model. For this purpose, cognitive assessment was complemented by analyses of ex vivo parameters in whole blood, serum, CSF, and brain tissues from the mice. Furthermore, neurotoxicity of HCys and HCA was assessed in a separate in vitro assay. In confirmation of our previous study, older AppNL–G–F mice also exhibited subtle phenotypic impairment and extensive cerebral amyloidosis, whereas dietary manipulations did not result in significant effects. As revealed by proximity extension assay-based proteome analysis, the AppNL–G–F genotype led to an upregulation of AD-characteristic neuronal markers. Hyperhomocysteinemia, in contrast, indicated mainly vascular effects. Overall, since there was an absence of a distinct phenotype despite both a significant amyloid-β burden and serum HCys elevation, the results in this study did not corroborate the pathological role of amyloid-β according to the “amyloid hypothesis,” nor of hyperhomocysteinemia on cognitive performance. Nevertheless, this study aided in further characterizing the AppNL–G–F model and in elucidating the role of HCys in diverse biological processes. The idea of AD prevention with the investigated micronutrients, however, was not supported, at least in this mouse model of the disease.
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Affiliation(s)
- Hendrik Nieraad
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Natasja de Bruin
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
- *Correspondence: Natasja de Bruin,
| | - Olga Arne
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Martine C. J. Hofmann
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Nina Pannwitz
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Eduard Resch
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Sonja Luckhardt
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Ann-Kathrin Schneider
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Sandra Trautmann
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University, Frankfurt am Main, Germany
| | - Yannick Schreiber
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
| | - Robert Gurke
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University, Frankfurt am Main, Germany
| | - Michael J. Parnham
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
- EpiEndo Pharmaceuticals, Reykjavík, Iceland
| | - Uwe Till
- Former Institute of Pathobiochemistry, Friedrich-Schiller-Universität Jena, Jena, Germany
| | - Gerd Geisslinger
- Fraunhofer Institute for Translational Medicine and Pharmacology, Frankfurt am Main, Germany
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University, Frankfurt am Main, Germany
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50
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Haseeb M, Javaid N, Yasmeen F, Jeong U, Han JH, Yoon J, Seo JY, Heo JK, Shin HC, Kim MS, Kim W, Choi S. Novel Small-Molecule Inhibitor of NLRP3 Inflammasome Reverses Cognitive Impairment in an Alzheimer's Disease Model. ACS Chem Neurosci 2022; 13:818-833. [PMID: 35196855 DOI: 10.1021/acschemneuro.1c00831] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aberrant activation of the Nod-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome plays an essential role in multiple diseases, including Alzheimer's disease (AD) and psoriasis. We report a novel small-molecule inhibitor, NLRP3-inhibitory compound 7 (NIC7), and its derivative, which inhibit NLRP3-mediated activation of caspase 1 along with the secretion of interleukin (IL)-1β, IL-18, and lactate dehydrogenase. We examined the therapeutic potential of NIC7 in a disease model of AD by analyzing its effect on cognitive impairment as well as the expression of dopamine receptors and neuronal markers. NIC7 significantly reversed the associated disease symptoms in the mice model. On the other hand, NIC7 did not reverse the disease symptoms in the imiquimod (IMQ)-induced disease model of psoriasis. This indicates that IMQ-based psoriasis is independent of NLRP3. Overall, NIC7 and its derivative have therapeutic prospects to treat AD or NLRP3-mediated diseases.
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Affiliation(s)
- Muhammad Haseeb
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
- S&K Therapeutics, Ajou University Campus Plaza 418, 199 Worldcup-ro, Yeongtong-gu, Suwon 16502, Korea
| | - Nasir Javaid
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Farzana Yasmeen
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Uisuk Jeong
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
- S&K Therapeutics, Ajou University Campus Plaza 418, 199 Worldcup-ro, Yeongtong-gu, Suwon 16502, Korea
| | - Ji Hye Han
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Juhwan Yoon
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Jee Yeon Seo
- Whan In Pharmaceutical Co., Ltd., 11, Beobwon-ro 6-gil, Songpa-gu, Seoul 05855, Korea
| | - Jae Kyung Heo
- Whan In Pharmaceutical Co., Ltd., 11, Beobwon-ro 6-gil, Songpa-gu, Seoul 05855, Korea
| | - Ho Chul Shin
- Whan In Pharmaceutical Co., Ltd., 11, Beobwon-ro 6-gil, Songpa-gu, Seoul 05855, Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Sangdun Choi
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
- S&K Therapeutics, Ajou University Campus Plaza 418, 199 Worldcup-ro, Yeongtong-gu, Suwon 16502, Korea
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