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Li D, Jia J, Zeng H, Zhong X, Chen H, Yi C. Efficacy of exercise rehabilitation for managing patients with Alzheimer's disease. Neural Regen Res 2024; 19:2175-2188. [PMID: 38488551 PMCID: PMC11034587 DOI: 10.4103/1673-5374.391308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/16/2023] [Accepted: 11/25/2023] [Indexed: 04/24/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive and degenerative neurological disease characterized by the deterioration of cognitive functions. While a definitive cure and optimal medication to impede disease progression are currently unavailable, a plethora of studies have highlighted the potential advantages of exercise rehabilitation for managing this condition. Those studies show that exercise rehabilitation can enhance cognitive function and improve the quality of life for individuals affected by AD. Therefore, exercise rehabilitation has been regarded as one of the most important strategies for managing patients with AD. Herein, we provide a comprehensive analysis of the currently available findings on exercise rehabilitation in patients with AD, with a focus on the exercise types which have shown efficacy when implemented alone or combined with other treatment methods, as well as the potential mechanisms underlying these positive effects. Specifically, we explain how exercise may improve the brain microenvironment and neuronal plasticity. In conclusion, exercise is a cost-effective intervention to enhance cognitive performance and improve quality of life in patients with mild to moderate cognitive dysfunction. Therefore, it can potentially become both a physical activity and a tailored intervention. This review may aid the development of more effective and individualized treatment strategies to address the challenges imposed by this debilitating disease, especially in low- and middle-income countries.
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Affiliation(s)
- Dan Li
- Department of Pathology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Jinning Jia
- Department of Pathology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Haibo Zeng
- Department of Pathology, Huichang County People’s Hospital, Ganzhou, Jiangxi Province, China
| | - Xiaoyan Zhong
- Department of Pathology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Chenju Yi
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China
- Shenzhen Key Laboratory of Chinese Medicine Active Substance Screening and Translational Research, Shenzhen, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou, Guangdong Province, China
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Ma Y, Qiao Y, Gao X. Potential role of hippocampal neurogenesis in spinal cord injury induced post-trauma depression. Neural Regen Res 2024; 19:2144-2156. [PMID: 38488549 PMCID: PMC11034606 DOI: 10.4103/1673-5374.392855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 11/02/2023] [Accepted: 11/29/2023] [Indexed: 04/24/2024] Open
Abstract
It has been reported both in clinic and rodent models that beyond spinal cord injury directly induced symptoms, such as paralysis, neuropathic pain, bladder/bowel dysfunction, and loss of sexual function, there are a variety of secondary complications, including memory loss, cognitive decline, depression, and Alzheimer's disease. The large-scale longitudinal population-based studies indicate that post-trauma depression is highly prevalent in spinal cord injury patients. Yet, few basic studies have been conducted to address the potential molecular mechanisms. One of possible factors underlying the depression is the reduction of adult hippocampal neurogenesis which may come from less physical activity, social isolation, chronic pain, and elevated neuroinflammation after spinal cord injury. However, there is no clear consensus yet. In this review, we will first summarize the alteration of hippocampal neurogenesis post-spinal cord injury. Then, we will discuss possible mechanisms underlie this important spinal cord injury consequence. Finally, we will outline the potential therapeutic options aimed at enhancing hippocampal neurogenesis to ameliorate depression.
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Affiliation(s)
- Ying Ma
- Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, Indianapolis, IN, USA
- Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yue Qiao
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Xiang Gao
- Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, Indianapolis, IN, USA
- Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
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Mattos BAD, Bonato JM, Splendor MC, Del Bel E, Milani H, Oliveira RMWD. Cannabidiol improves nonmotor symptoms, attenuates neuroinflammation and favors hippocampal newborn neuronal maturation in a rat model of Parkinsonism. Acta Neuropsychiatr 2024:1-30. [PMID: 38770713 DOI: 10.1017/neu.2024.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
OBJECTIVE To investigate the effects of cannabidiol (CBD) on emotional and cognitive symptoms in rats with intra-nigral 6-hydroxydopamine (6-OHDA) lesions. METHODS Adult male Wistar rats received bilateral intranigral 6-OHDA infusions and were tested in a battery of behavioral paradigms to evaluate nonmotor symptoms. The brains were obtained to evaluate the effects of CBD on hippocampal neurogenesis. RESULTS 6-hydroxydopamine-lesioned rats exhibited memory impairments and despair-like behavior in the novelty-suppressed feeding test and forced swim test, respectively. The animals also exhibited dopaminergic neuronal loss in the substantia nigra pars compacta (SNpc), striatum, and ventral tegmental area and a reduction of hippocampal neurogenesis. Cannabidiol decreased dopaminergic neuronal loss in the SNpc, reduced the mortality rate and decreased neuroinflammation in 6-OHDA-lesioned rats. In parallel, CBD prevented memory impairments and attenuated despair-like behavior that were induced by bilateral intranigral 6-OHDA lesions. Repeated treatment with CBD favored the neuronal maturation of newborn neurons in the hippocampus in Parkinsonian rats. CONCLUSION The present findings suggest a potential beneficial effect of CBD on nonmotor symptoms induced by intra-nigral 6-OHDA infusion in rats.
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Affiliation(s)
- Bianca Andretto de Mattos
- Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Jéssica Mendes Bonato
- Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Maria Clara Splendor
- Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Elaine Del Bel
- Department of Basic and Oral Biology, School of Medicine, USP, Av. Bandeirantes, 14015-000, Ribeirão Preto, São Paulo, Brazil
| | - Humberto Milani
- Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Rúbia Maria Weffort de Oliveira
- Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
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Du Preez A, Lefèvre-Arbogast S, González-Domínguez R, Houghton V, de Lucia C, Lee H, Low DY, Helmer C, Féart C, Delcourt C, Proust-Lima C, Pallàs M, Sánchez-Pla A, Urpi-Sardà M, Ruigrok SR, Altendorfer B, Aigner L, Lucassen PJ, Korosi A, Manach C, Andres-Lacueva C, Samieri C, Thuret S. Association of dietary and nutritional factors with cognitive decline, dementia, and depressive symptomatology in older individuals according to a neurogenesis-centred biological susceptibility to brain ageing. Age Ageing 2024; 53:ii47-ii59. [PMID: 38745492 PMCID: PMC11094407 DOI: 10.1093/ageing/afae042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/15/2024] [Indexed: 05/16/2024] Open
Abstract
Hippocampal neurogenesis (HN) occurs throughout the life course and is important for memory and mood. Declining with age, HN plays a pivotal role in cognitive decline (CD), dementia, and late-life depression, such that altered HN could represent a neurobiological susceptibility to these conditions. Pertinently, dietary patterns (e.g., Mediterranean diet) and/or individual nutrients (e.g., vitamin D, omega 3) can modify HN, but also modify risk for CD, dementia, and depression. Therefore, the interaction between diet/nutrition and HN may alter risk trajectories for these ageing-related brain conditions. Using a subsample (n = 371) of the Three-City cohort-where older adults provided information on diet and blood biobanking at baseline and were assessed for CD, dementia, and depressive symptomatology across 12 years-we tested for interactions between food consumption, nutrient intake, and nutritional biomarker concentrations and neurogenesis-centred susceptibility status (defined by baseline readouts of hippocampal progenitor cell integrity, cell death, and differentiation) on CD, Alzheimer's disease (AD), vascular and other dementias (VoD), and depressive symptomatology, using multivariable-adjusted logistic regression models. Increased plasma lycopene concentrations (OR [95% CI] = 1.07 [1.01, 1.14]), higher red meat (OR [95% CI] = 1.10 [1.03, 1.19]), and lower poultry consumption (OR [95% CI] = 0.93 [0.87, 0.99]) were associated with an increased risk for AD in individuals with a neurogenesis-centred susceptibility. Increased vitamin D consumption (OR [95% CI] = 1.05 [1.01, 1.11]) and plasma γ-tocopherol concentrations (OR [95% CI] = 1.08 [1.01, 1.18]) were associated with increased risk for VoD and depressive symptomatology, respectively, but only in susceptible individuals. This research highlights an important role for diet/nutrition in modifying dementia and depression risk in individuals with a neurogenesis-centred susceptibility.
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Affiliation(s)
- Andrea Du Preez
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 9NU, UK
| | - Sophie Lefèvre-Arbogast
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000 Bordeaux, France
| | - Raúl González-Domínguez
- Nutrition, Food Science and Gastronomy Department, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 0828 Barcelona, Spain
| | - Vikki Houghton
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 9NU, UK
| | - Chiara de Lucia
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 9NU, UK
| | - Hyunah Lee
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 9NU, UK
| | - Dorrain Y Low
- INRA, Human Nutrition Unit, UMR1019, Université Clermont Auvergne, F-63000 Clermont Ferrand, France
| | - Catherine Helmer
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000 Bordeaux, France
| | - Catherine Féart
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000 Bordeaux, France
| | - Cécile Delcourt
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000 Bordeaux, France
| | - Cécile Proust-Lima
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000 Bordeaux, France
| | - Mercè Pallàs
- Pharmacology Section, Department of Pharmacology, Toxicology and Medicinal Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Neurosciences, University of Barcelona, E-08028 Barcelona, Spain
| | - Alex Sánchez-Pla
- Nutrition, Food Science and Gastronomy Department, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 0828 Barcelona, Spain
| | - Mireia Urpi-Sardà
- Nutrition, Food Science and Gastronomy Department, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 0828 Barcelona, Spain
| | - Silvie R Ruigrok
- Brain Plasticity Group, Swammerdam Institute for Life Sciences, Center for Neuroscience, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Barbara Altendorfer
- Institute of Molecular Regenerative Medicine, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg 5020, Austria
| | - Ludwig Aigner
- Institute of Molecular Regenerative Medicine, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg 5020, Austria
| | - Paul J Lucassen
- Brain Plasticity Group, Swammerdam Institute for Life Sciences, Center for Neuroscience, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Aniko Korosi
- Brain Plasticity Group, Swammerdam Institute for Life Sciences, Center for Neuroscience, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Claudine Manach
- INRA, Human Nutrition Unit, UMR1019, Université Clermont Auvergne, F-63000 Clermont Ferrand, France
| | - Cristina Andres-Lacueva
- Nutrition, Food Science and Gastronomy Department, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 0828 Barcelona, Spain
| | - Cécilia Samieri
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000 Bordeaux, France
| | - Sandrine Thuret
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 9NU, UK
- Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
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Song Y, Jiang W, Afridi SK, Wang T, Zhu F, Xu H, Nazir FH, Liu C, Wang Y, Long Y, Huang YWA, Qiu W, Tang C. Astrocyte-derived CHI3L1 signaling impairs neurogenesis and cognition in the demyelinated hippocampus. Cell Rep 2024; 43:114226. [PMID: 38733586 DOI: 10.1016/j.celrep.2024.114226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/15/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
Cognitive dysfunction is a feature in multiple sclerosis (MS), a chronic inflammatory demyelinating disorder. A notable aspect of MS brains is hippocampal demyelination, which is closely associated with cognitive decline. However, the mechanisms underlying this phenomenon remain unclear. Chitinase-3-like (CHI3L1), secreted by activated astrocytes, has been identified as a biomarker for MS progression. Our study investigates CHI3L1's function within the demyelinating hippocampus and demonstrates a correlation between CHI3L1 expression and cognitive impairment in patients with MS. Activated astrocytes release CHI3L1 in reaction to induced demyelination, which adversely affects the proliferation and differentiation of neural stem cells and impairs dendritic growth, complexity, and spine formation in neurons. Our findings indicate that the astrocytic deletion of CHI3L1 can mitigate neurogenic deficits and cognitive dysfunction. We showed that CHI3L1 interacts with CRTH2/receptor for advanced glycation end (RAGE) by attenuating β-catenin signaling. The reactivation of β-catenin signaling can revitalize neurogenesis, which holds promise for therapy of inflammatory demyelination.
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Affiliation(s)
- Yanna Song
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China
| | - Wei Jiang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China
| | - Shabbir Khan Afridi
- State Key Laboratory for Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Tongtong Wang
- Department of Clinical Immunology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Fan Zhu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China
| | - Huiming Xu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China
| | - Faisal Hayat Nazir
- Nash Family Department of Neuroscience, Ronald M. Loeb Center for Alzheimer's Disease, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chunxin Liu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China
| | - Yuge Wang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China
| | - Youming Long
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou 510260, Guangdong Province, China; Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, 250 Changgang East Road, Guangzhou 510260, Guangdong Province, China
| | - Yu-Wen Alvin Huang
- Department of Molecular Biology, Cell Biology, and Biochemistry, Brown University, 70 Ship Street, Providence, RI 02903, USA
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China.
| | - Changyong Tang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University; 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China; Guangdong Provincial Key Laboratory of Diabetology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China.
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Elbeltagy M, Mansour S, Zayed JA, Alrafayia MAB, Alhesa A, Salman A. Fluvoxamine Ameliorates the Damage to the Neuro-Behavioral Status of Rats Caused by the Administration of Valproic Acid by Preventing Cognitive Memory Deficits and Decreased Hippocampal Cellular Proliferation. Cureus 2024; 16:e58578. [PMID: 38770498 PMCID: PMC11103936 DOI: 10.7759/cureus.58578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2024] [Indexed: 05/22/2024] Open
Abstract
Fluvoxamine is a major antidepressant of the selective serotonin-reuptake inhibitor class, previously studied as a drug that improves cognitive memory by enhancing hippocampal cell division and proliferation. Valproic acid (VPA) is a commonly used antiepileptic drug and mood stabilizer that has negative effects on cognitive memory as it inhibits cellular division and proliferation in the hippocampus. This study assessed the protective effects of fluvoxamine treatment versus the memory impairment, decreased hippocampal cellular proliferation, and weight loss produced by VPA treatment. The cognitive memory of 40 male Sprague-Dawley rats was assessed by the novel object location (NOL) test. Immunostaining by Ki67 and glutathione peroxidase 1 (GPX-1) was performed to quantify the number of dividing cells in the subgranular zone (SGZ) of the dentate gyrus and to assess the antioxidant activity of different treatments, respectively. Results showed that the VPA group had fewer Ki67-positive cells than the control group (p < 0.001), indicating reduced hippocampal proliferation. In contrast, the VPA and fluvoxamine combination group showed increased proliferation (p < 0.001) compared to VPA alone. Notably, fluvoxamine treatment significantly differed in cell counts compared to other groups (p < 0.001). Fluvoxamine also attenuated the weight loss caused by VPA (p < 0.0001). Our data suggested that fluvoxamine therapy attenuated the VPA-induced decrease in SGZ cellular proliferation, memory, and weight in rats.
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Affiliation(s)
| | - Shahd Mansour
- School of Medicine, University of Jordan, Amman, JOR
| | - Jana A Zayed
- School of Medicine, University of Jordan, Amman, JOR
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Naffaa MM. Significance of the anterior cingulate cortex in neurogenesis plasticity: Connections, functions, and disorders across postnatal and adult stages. Bioessays 2024; 46:e2300160. [PMID: 38135889 DOI: 10.1002/bies.202300160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023]
Abstract
The anterior cingulate cortex (ACC) is a complex and continually evolving brain region that remains a primary focus of research due to its multifaceted functions. Various studies and analyses have significantly advanced our understanding of how the ACC participates in a wide spectrum of memory and cognitive processes. However, despite its strong connections to brain areas associated with hippocampal and olfactory neurogenesis, the functions of the ACC in regulating postnatal and adult neurogenesis in these regions are still insufficiently explored. Investigating the intricate involvement of the ACC in neurogenesis could enhance our comprehension of essential aspects of brain plasticity. This involvement stems from its complex circuitry with other relevant brain regions, thereby exerting both direct and indirect impacts on the neurogenesis process. This review sheds light on the promising significance of the ACC in orchestrating postnatal and adult neurogenesis in conditions related to memory, cognitive behavior, and associated disorders.
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Affiliation(s)
- Moawiah M Naffaa
- Department of Psychology and Neuroscience, Duke University, Durham, North Carolina, USA
- Department of Cell Biology, Duke University School of Medicine, Durham, North Carolina, USA
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Du Q, Gao C, Tsoi B, Wu M, Shen J. Niuhuang Qingxin Wan ameliorates depressive-like behaviors and improves hippocampal neurogenesis through modulating TrkB/ERK/CREB signaling pathway in chronic restraint stress or corticosterone challenge mice. Front Pharmacol 2024; 14:1274343. [PMID: 38273824 PMCID: PMC10808638 DOI: 10.3389/fphar.2023.1274343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Introduction: Chronic stress-associated hormonal imbalance impairs hippocampal neurogenesis, contributing to depressive and anxiety behaviors. Targeting neurogenesis is thus a promising antidepressant therapeutic strategy. Niuhuang Qingxin Wan (NHQXW) is an herbal formula for mental disorders in Traditional Chinese Medicine (TCM) practice, but its anti-depressant efficacies and mechanisms remain unverified. Methods: In the present study, we tested the hypothesis that NHQXW could ameliorate depressive-like behaviors and improve hippocampal neurogenesis by modulating the TrkB/ERK/CREB signaling pathway by utilizing two depression mouse models including a chronic restraint stress (CRS) mouse model and a chronic corticosterone (CORT) stress (CCS) induced mouse model. The depression-like mouse models were orally treated with NHQXW whereas fluoxetine was used as the positive control group. We evaluated the effects of NHQXW on depressive- and anxiety-like behaviors and determined the effects of NHQXW on inducing hippocampal neurogenesis. Results: NHQXW treatment significantly ameliorated depressive-like behaviors in those chronic stress mouse models. NHQXW significantly improved hippocampal neurogenesis in the CRS mice and CCS mice. The potential neurogenic mechanism of NHQXW was identified by regulating the expression levels of BDNF, TrkB, p-ERK (T202/T204), p-MEK1/2 (S217/221), and p-CREB (S133) in the hippocampus area of the CCS mice. NHQXW revealed its antidepressant and neurogenic effects that were similar to fluoxetine. Moreover, NHQXW treatment revealed long-term effects on preventing withdrawal-associated rebound symptoms in the CCS mice. Furthermore, in a bioactivity-guided quality control study, liquiritin was identified as one of the bioactive compounds of NHQXW with the bioactivities of neurogenesis-promoting effects. Discussion: Taken together, NHQXW could be a promising TCM formula to attenuate depressive- and anxiety-like behaviors against chronic stress and depression. The underlying anti-depressant mechanisms could be correlated with its neurogenic activities by stimulating the TrkB/ERK/CREB signaling pathway.
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Affiliation(s)
- Qiaohui Du
- School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Chong Gao
- School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
- The Institute of Brain and Cognitive Sciences, School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Bun Tsoi
- School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Meiling Wu
- School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Jiangang Shen
- School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
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Chen X, Chen A, Wei J, Huang Y, Deng J, Chen P, Yan Y, Lin M, Chen L, Zhang J, Huang Z, Zeng X, Gong C, Zheng X. Dexmedetomidine alleviates cognitive impairment by promoting hippocampal neurogenesis via BDNF/TrkB/CREB signaling pathway in hypoxic-ischemic neonatal rats. CNS Neurosci Ther 2024; 30:e14486. [PMID: 37830170 PMCID: PMC10805444 DOI: 10.1111/cns.14486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/14/2023] Open
Abstract
AIMS Dexmedetomidine (DEX) has been reported to alleviate hypoxic-ischemic brain damage (HIBD) in neonates. This study aimed to investigate whether DEX improves cognitive impairment by promoting hippocampal neurogenesis via the BDNF/TrkB/CREB signaling pathway in neonatal rats with HIBD. METHODS HIBD was induced in postnatal day 7 rats using the Rice-Vannucci method, and DEX (25 μg/kg) was administered intraperitoneally immediately after the HIBD induction. The BDNF/TrkB/CREB pathway was regulated by administering the TrkB receptor antagonist ANA-12 through intraperitoneal injection or by delivering adeno-associated virus (AAV)-shRNA-BDNF via intrahippocampal injection. Western blot was performed to measure the levels of BDNF, TrkB, and CREB. Immunofluorescence staining was utilized to identify the polarization of astrocytes and evaluate the levels of neurogenesis in the dentate gyrus of the hippocampus. Nissl and TTC staining were performed to evaluate the extent of neuronal damage. The MWM test was conducted to evaluate spatial learning and memory ability. RESULTS The levels of BDNF and neurogenesis exhibited a notable decrease in the hippocampus of neonatal rats after HIBD, as determined by RNA-sequencing technology. Our results demonstrated that treatment with DEX effectively increased the protein expression of BDNF and the phosphorylation of TrkB and CREB, promoting neurogenesis in the dentate gyrus of the hippocampus in neonatal rats with HIBD. Specifically, DEX treatment significantly augmented the expression of BDNF in hippocampal astrocytes, while decreasing the proportion of detrimental A1 astrocytes and increasing the proportion of beneficial A2 astrocytes in neonatal rats with HIBD. Furthermore, inhibiting the BDNF/TrkB/CREB pathway using either ANA-12 or AAV-shRNA-BDNF significantly counteracted the advantageous outcomes of DEX on hippocampal neurogenesis, neuronal survival, and cognitive improvement. CONCLUSIONS DEX promoted neurogenesis in the hippocampus by activating the BDNF/TrkB/CREB pathway through the induction of polarization of A1 astrocytes toward A2 astrocytes, subsequently mitigating neuronal damage and cognitive impairment in neonates with HIBD.
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Affiliation(s)
- Xiaohui Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Andi Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Jianjie Wei
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Yongxin Huang
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Jianhui Deng
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Pinzhong Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Yanlin Yan
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Mingxue Lin
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Lifei Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Jiuyun Zhang
- Fujian Provincial Key Laboratory of Emergency MedicineFuzhouChina
| | - Zhibin Huang
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Xiaoqian Zeng
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Cansheng Gong
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Xiaochun Zheng
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Emergency MedicineFuzhouChina
- Fujian Emergency Medical Center, Fujian Provincial Key Laboratory of Critical Care MedicineFujian Provincial Co‐Constructed Laboratory of “Belt and Road”FuzhouChina
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10
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Willinger Y, Friedland Cohen DR, Turgeman G. Exogenous IL-17A Alleviates Social Behavior Deficits and Increases Neurogenesis in a Murine Model of Autism Spectrum Disorders. Int J Mol Sci 2023; 25:432. [PMID: 38203599 PMCID: PMC10779042 DOI: 10.3390/ijms25010432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/17/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Among the proposed mechanisms for autism spectrum disorders (ASD) is immune dysregulation. The proinflammatory cytokine Interleukine-17A (IL-17A) was shown to play a key role in mediating immune-related neurodevelopmental impairment of social behavior. Nevertheless, post-developmental administration of IL-17A was found to increase social behavior. In the present study, we explored the effect of post-developmental administration of IL-17A on ASD-like behaviors induced by developmental exposure to valproic acid (VPA) at postnatal day 4. At the age of seven weeks, VPA-exposed mice were intravenously injected twice with recombinant murine IL-17A (8 μg), and a week later, they were assessed for ASD-like behavior. IL-17A administration increased social behavior and alleviated the ASD-like phenotype. Behavioral changes were associated with increased serum levels of IL-17 and Th17-related cytokines. Exogenous IL-17A also increased neuritogenesis in the dendritic tree of doublecortin-expressing newly formed neurons in the dentate gyrus. Interestingly, the effect of IL-17A on neuritogenesis was more noticeable in females than in males, suggesting a sex-dependent effect of IL-17A. In conclusion, our study suggests a complex role for IL-17A in ASD. While contributing to its pathology at the developmental stage, IL-17 may also promote the alleviation of behavioral deficits post-developmentally by promoting neuritogenesis and synaptogenesis in the dentate gyrus.
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Affiliation(s)
- Yehoshua Willinger
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel 40700, Israel; (Y.W.); (D.R.F.C.)
| | - Daniella R. Friedland Cohen
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel 40700, Israel; (Y.W.); (D.R.F.C.)
| | - Gadi Turgeman
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel 40700, Israel; (Y.W.); (D.R.F.C.)
- The Adelson School of Medicine, Ariel University, Ariel 40700, Israel
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11
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Ferreira AC, Marques F. The Effects of Stress on Hippocampal Neurogenesis and Behavior in the Absence of Lipocalin-2. Int J Mol Sci 2023; 24:15537. [PMID: 37958520 PMCID: PMC10649401 DOI: 10.3390/ijms242115537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/17/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
Lipocalin-2 (LCN2) is an acute phase protein able to bind iron when complexed with bacterial siderophores. The recent identification of a mammalian siderophore also suggested a physiological role for LCN2 in the regulation of iron levels and redox state. In the central nervous system, the deletion of LCN2 induces deficits in neural stem cells proliferation and commitment, with an impact on the hippocampal-dependent contextual fear discriminative task. Additionally, stress is a well-known regulator of cell genesis and is known to decrease adult hippocampal cell proliferation and neurogenesis. Although voluntary running, another well-known regulator of neurogenesis, is sufficient to rescue the defective hippocampal neurogenesis and behavior in LCN2-null mice by promoting stem cells' cell cycle progression and maturation, the relevance of LCN2-regulated hippocampal neurogenesis in response to stress has never been explored. Here, we show a lack of response by LCN2-null mice to the effects of chronic stress exposure at the cellular and behavioral levels. Together, these findings implicate LCN2 as a relevant mediator of neuronal plasticity and brain function in the adult mammalian brain.
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Affiliation(s)
- Ana Catarina Ferreira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal;
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Fernanda Marques
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal;
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
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12
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Funabashi D, Tsuchida R, Matsui T, Kita I, Nishijima T. Enlarged housing space and increased spatial complexity enhance hippocampal neurogenesis but do not increase physical activity in mice. Front Sports Act Living 2023; 5:1203260. [PMID: 37822972 PMCID: PMC10562532 DOI: 10.3389/fspor.2023.1203260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/13/2023] [Indexed: 10/13/2023] Open
Abstract
Introduction Environmental enrichment (EE) improves various health outcomes, such as hippocampal neurogenesis, in rodents, which is thought to be caused, in part, by increased physical activity. However, the specific effect of each enrichment component, such as enlarged housing spaces and increased spatial complexity with a variety of objects, on physical activity remains unclear because of methodological limitations in measuring physical activity. We aimed to examine whether enlarged housing spaces and increased spatial complexity increase physical activity in mice using a body-implantable actimeter. Methods Adult male C57BL/6J mice were assigned to either standard housing or EE groups. The housing environment in the EE mice was gradually enriched by enlarging the housing space and the placement of a variety of objects. Physical activity was measured using a body-implanted actimeter. Hippocampal neurogenesis was immunohistochemically examined. Results Enlarged housing spaces and the placement of a variety of objects did not increase physical activity in mice. In contrast, hippocampal neurogenesis was enhanced in the EE mice, suggesting that environmental interventions successfully provided enriched housing conditions for these mice. Conclusions These results indicate that enlarged housing spaces and increased spatial complexity do not increase physical activity in mice. Furthermore, we found that EE enhanced hippocampal neurogenesis without increasing activity volume. Besides the current understanding that increasing the amount of physical activity is key to improving hippocampal function, our result suggests that the environment in which physical activity takes place is also a crucial contextual factor in determining the impact of physical activity on hippocampal function.
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Affiliation(s)
- Daisuke Funabashi
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
- Exercise Biochemistry & Sport Neurobiology Division, Institute of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
| | - Ryuki Tsuchida
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Takashi Matsui
- Exercise Biochemistry & Sport Neurobiology Division, Institute of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
| | - Ichiro Kita
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Takeshi Nishijima
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
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13
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Amelchenko EM, Bezriadnov DV, Chekhov OA, Ivanova AA, Kedrov AV, Anokhin KV, Lazutkin AA, Enikolopov G. Cognitive Flexibility Is Selectively Impaired by Radiation and Is Associated with Differential Recruitment of Adult-Born Neurons. J Neurosci 2023; 43:6061-6083. [PMID: 37532464 PMCID: PMC10451007 DOI: 10.1523/jneurosci.0161-22.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 06/17/2023] [Accepted: 06/23/2023] [Indexed: 08/04/2023] Open
Abstract
Exposure to elevated doses of ionizing radiation, such as those in therapeutic procedures, catastrophic accidents, or space exploration, increases the risk of cognitive dysfunction. The full range of radiation-induced cognitive deficits is unknown, partly because commonly used tests may be insufficiently sensitive or may not be adequately tuned for assessing the fine behavioral features affected by radiation. Here, we asked whether γ-radiation might affect learning, memory, and the overall ability to adapt behavior to cope with a challenging environment (cognitive/behavioral flexibility). We developed a new behavioral assay, the context discrimination Morris water maze (cdMWM) task, which is hippocampus-dependent and requires the integration of various contextual cues and the adjustment of search strategies. We exposed male mice to 1 or 5 Gy of γ rays and, at different time points after irradiation, trained them consecutively in spatial MWM, reversal MWM, and cdMWM tasks, and assessed their learning, navigational search strategies, and memory. Mice exposed to 5 Gy performed successfully in the spatial and reversal MWM tasks; however, in the cdMWM task 6 or 8 weeks (but not 3 weeks) after irradiation, they demonstrated transient learning deficit, decreased use of efficient spatially precise search strategies during learning, and, 6 weeks after irradiation, memory deficit. We also observed impaired neurogenesis after irradiation and selective activation of 12-week-old newborn neurons by specific components of cdMWM training paradigm. Thus, our new behavioral paradigm reveals the effects of γ-radiation on cognitive flexibility and indicates an extended timeframe for the functional maturation of new hippocampal neurons.SIGNIFICANCE STATEMENT Exposure to radiation can affect cognitive performance and cognitive flexibility - the ability to adapt to changed circumstances and demands. The full range of consequences of irradiation on cognitive flexibility is unknown, partly because of a lack of suitable models. Here, we developed a new behavioral task requiring mice to combine various types of cues and strategies to find a correct solution. We show that animals exposed to γ-radiation, despite being able to successfully solve standard problems, show delayed learning, deficient memory, and diminished use of efficient navigation patterns in circumstances requiring adjustments of previously used search strategies. This new task could be applied in other settings for assessing the cognitive changes induced by aging, trauma, or disease.
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Affiliation(s)
- Evgeny M Amelchenko
- Center for Developmental Genetics
- Department of Anesthesiology, Stony Brook University, Stony Brook, New York 11794
| | - Dmitri V Bezriadnov
- P.K. Anokhin Research Institute of Normal Physiology, Moscow, 125315, Russian Federation
| | - Olga A Chekhov
- Center for Developmental Genetics
- Department of Anesthesiology, Stony Brook University, Stony Brook, New York 11794
| | - Anna A Ivanova
- Institute of Higher Nervous Activity and Neurophysiology RAS, Moscow, 117485, Russian Federation
- Institute for Advanced Brain Studies, Lomonosov Moscow State University, Moscow, 119234, Russian Federation
| | - Alexander V Kedrov
- P.K. Anokhin Research Institute of Normal Physiology, Moscow, 125315, Russian Federation
| | - Konstantin V Anokhin
- P.K. Anokhin Research Institute of Normal Physiology, Moscow, 125315, Russian Federation
- Institute for Advanced Brain Studies, Lomonosov Moscow State University, Moscow, 119234, Russian Federation
| | - Alexander A Lazutkin
- Center for Developmental Genetics
- Department of Anesthesiology, Stony Brook University, Stony Brook, New York 11794
- Institute of Higher Nervous Activity and Neurophysiology RAS, Moscow, 117485, Russian Federation
| | - Grigori Enikolopov
- Center for Developmental Genetics
- Department of Anesthesiology, Stony Brook University, Stony Brook, New York 11794
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14
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Amelchenko EM, Bezriadnov DV, Chekhov OA, Anokhin KV, Lazutkin AA, Enikolopov G. Age-related decline in cognitive flexibility is associated with the levels of hippocampal neurogenesis. Front Neurosci 2023; 17:1232670. [PMID: 37645372 PMCID: PMC10461065 DOI: 10.3389/fnins.2023.1232670] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/28/2023] [Indexed: 08/31/2023] Open
Abstract
Aging is associated with impairments in learning, memory, and cognitive flexibility, as well as a gradual decline in hippocampal neurogenesis. We investigated the performance of 6-and 14-month-old mice (considered mature adult and late middle age, respectively) in learning and memory tasks based on the Morris water maze (MWM) and determined their levels of preceding and current neurogenesis. While both age groups successfully performed in the spatial version of MWM (sMWM), the older mice were less efficient compared to the younger mice when presented with modified versions of the MWM that required a reassessment of the previously acquired experience. This was detected in the reversal version of MWM (rMWM) and was particularly evident in the context discrimination MWM (cdMWM), a novel task that required integrating various distal cues, local cues, and altered contexts and adjusting previously used search strategies. Older mice were impaired in several metrics that characterize rMWM and cdMWM, however, they showed improvement and narrowed the performance gap with the younger mice after additional training. Furthermore, we analyzed the adult-born mature and immature neurons in the hippocampal dentate gyrus and found a significant correlation between neurogenesis levels in individual mice and their performance in the tasks demanding cognitive flexibility. These results provide a detailed description of the age-related changes in learning and memory and underscore the importance of hippocampal neurogenesis in supporting cognitive flexibility.
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Affiliation(s)
- Evgeny M. Amelchenko
- Center for Developmental Genetics, Stony Brook, NY, United States
- Department of Anesthesiology, Stony Brook University, Stony Brook, NY, United States
| | | | - Olga A. Chekhov
- Center for Developmental Genetics, Stony Brook, NY, United States
- Department of Anesthesiology, Stony Brook University, Stony Brook, NY, United States
| | - Konstantin V. Anokhin
- P.K. Anokhin Research Institute of Normal Physiology RAS, Moscow, Russia
- Institute for Advanced Brain Studies, Lomonosov Moscow State University, Moscow, Russia
| | - Alexander A. Lazutkin
- Center for Developmental Genetics, Stony Brook, NY, United States
- Department of Anesthesiology, Stony Brook University, Stony Brook, NY, United States
- Institute of Higher Nervous Activity and Neurophysiology RAS, Moscow, Russia
| | - Grigori Enikolopov
- Center for Developmental Genetics, Stony Brook, NY, United States
- Department of Anesthesiology, Stony Brook University, Stony Brook, NY, United States
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15
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Wu H, Zhang Q, Xu P, Chen J, Duan L, Xu F, Zhang F. Nattokinase Promotes Post-stroke Neurogenesis and Cognition Recovery via Increasing Circulating Irisin. J Agric Food Chem 2023. [PMID: 37466380 DOI: 10.1021/acs.jafc.2c08718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The therapeutic potential of treatments for post-stroke cognitive impairment (PSCI) is severely limited by the autonomic regeneration capacity of the adult brain. Nattokinase (NK), a serine protease from the traditional food natto, has many beneficial effects on the cardiovascular system by modulating the blood system. While the role of blood factors in neurogenesis and cognition is well-established, it remains unclear whether NK can serve as an anti-PSCI agent through these factors. Our study demonstrates that NK protects against acute ischemic stroke and impressively promotes neurogenesis in rat models by increasing peripheral blood irisin, leading to improved cognitive functions. Our findings demonstrate NK to be a promising candidate for treating PSCI, and we also highlight irisin as a novel target of NK, suggesting its potential role in the peripheral blood-to-brain axis.
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Affiliation(s)
- Hao Wu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Qian Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Pu Xu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Jiepeng Chen
- Sungen Biotech Company, Limited, Shantou, Guangdong 515000, People's Republic of China
| | - Lili Duan
- Sungen Biotech Company, Limited, Shantou, Guangdong 515000, People's Republic of China
| | - Feng Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Fengjiao Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
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16
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Sun L, Zhang W, Ye R, Liu L, Jiang L, Xi C. Correction for: Catalpol enhanced physical exercise-mediated brain functional improvement in post-traumatic stress disorder model via promoting adult hippocampal neurogenesis. Aging (Albany NY) 2023; 15:5954-5955. [PMID: 37389615 PMCID: PMC10333069 DOI: 10.18632/aging.204873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 06/29/2023] [Indexed: 07/01/2023]
Affiliation(s)
- Lina Sun
- School of Physical Education, Beijing Normal University, Beijing, China
| | - Weiwei Zhang
- Department of Anesthesiology, Shanxi Bethune Hospital, Taiyuan, China
| | - Ruiqi Ye
- School of Physical Education, Beijing Normal University, Beijing, China
| | - Lei Liu
- School of Physical Education, Beijing Normal University, Beijing, China
| | - Lili Jiang
- School of Physical Education, Beijing Normal University, Beijing, China
| | - Chao Xi
- School of Life Science, Beijing Normal University, Beijing, China
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17
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Kodali M, Madhu LN, Reger RL, Milutinovic B, Upadhya R, Attaluri S, Shuai B, Shankar G, Shetty AK. A single intranasal dose of human mesenchymal stem cell-derived extracellular vesicles after traumatic brain injury eases neurogenesis decline, synapse loss, and BDNF-ERK-CREB signaling. Front Mol Neurosci 2023; 16:1185883. [PMID: 37284464 PMCID: PMC10239975 DOI: 10.3389/fnmol.2023.1185883] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/28/2023] [Indexed: 06/08/2023] Open
Abstract
An optimal intranasal (IN) dose of human mesenchymal stem cell-derived extracellular vesicles (hMSC-EVs), 90 min post-traumatic brain injury (TBI), has been reported to prevent the evolution of acute neuroinflammation into chronic neuroinflammation resulting in the alleviation of long-term cognitive and mood impairments. Since hippocampal neurogenesis decline and synapse loss contribute to TBI-induced long-term cognitive and mood dysfunction, this study investigated whether hMSC-EV treatment after TBI can prevent hippocampal neurogenesis decline and synapse loss in the chronic phase of TBI. C57BL6 mice undergoing unilateral controlled cortical impact injury (CCI) received a single IN administration of different doses of EVs or the vehicle at 90 min post-TBI. Quantifying neurogenesis in the subgranular zone-granule cell layer (SGZ-GCL) through 5'-bromodeoxyuridine and neuron-specific nuclear antigen double labeling at ~2 months post-TBI revealed decreased neurogenesis in TBI mice receiving vehicle. However, in TBI mice receiving EVs (12.8 and 25.6 × 109 EVs), the extent of neurogenesis was matched to naive control levels. A similar trend of decreased neurogenesis was seen when doublecortin-positive newly generated neurons were quantified in the SGZ-GCL at ~3 months post-TBI. The above doses of EVs treatment after TBI also reduced the loss of pre-and post-synaptic marker proteins in the hippocampus and the somatosensory cortex. Moreover, at 48 h post-treatment, brain-derived neurotrophic factor (BDNF), phosphorylated extracellular signal-regulated kinase 1/2 (p-ERK1/2), and phosphorylated cyclic AMP response-element binding protein (p-CREB) levels were downregulated in TBI mice receiving the vehicle but were closer to naïve control levels in TBI mice receiving above doses of hMSC-EVs. Notably, improved BDNF concentration observed in TBI mice receiving hMSC-EVs in the acute phase was sustained in the chronic phase of TBI. Thus, a single IN dose of hMSC-EVs at 90 min post-TBI can ease TBI-induced declines in the BDNF-ERK-CREB signaling, hippocampal neurogenesis, and synapses.
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18
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Bonetto V, Grilli M. Neural stem cell-derived extracellular vesicles: mini players with key roles in neurogenesis, immunomodulation, neuroprotection and aging. Front Mol Biosci 2023; 10:1187263. [PMID: 37228583 PMCID: PMC10203560 DOI: 10.3389/fmolb.2023.1187263] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/17/2023] [Indexed: 05/27/2023] Open
Abstract
Neural stem/progenitor cells (NSPCs) are self-renewing and multipotent cells of the central nervous system where they give rise to neurons, astrocytes and oligodendrocytes both during embryogenesis and throughout adulthood, although only in a few discrete niches. NSPC can integrate and send a plethora of signals not only within the local microenvironment but also at distance, including the systemic macroenvironment. Extracellular vesicles (EVs) are currently envisioned as main players in cell-cell communication in basic and translational neuroscience where they are emerging as an acellular alternative in regenerative medicine. At present NSPC-derived EVs represent a largely unexplored area compared to EVs from other neural sources and EVs from other stem cells, i.e., mesenchymal stem cells. On the other hand, available data suggest that NSPC-derived EVs can play key roles on neurodevelopmental and adult neurogenesis, and they are endowed with neuroprotective and immunomodulatory properties, and even endocrine functions. In this review we specifically highlight major neurogenic and "non-neurogenic" properties of NSPC-EVs, the current knowledge on their peculiar cargos and their potential translational value.
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19
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Jaggar M, Ghosh S, Janakiraman B, Chatterjee A, Maheshwari M, Dewan V, Hare B, Deb S, Figueiredo D, Duman RS, Vaidya VA. Influence of Chronic Electroconvulsive Seizures on Plasticity-Associated Gene Expression and Perineuronal Nets Within the Hippocampi of Young Adult and Middle-Aged Sprague-Dawley Rats. Int J Neuropsychopharmacol 2023; 26:294-306. [PMID: 36879414 PMCID: PMC10109107 DOI: 10.1093/ijnp/pyad008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
BACKGROUND Electroconvulsive seizure therapy is often used in both treatment-resistant and geriatric depression. However, preclinical studies identifying targets of chronic electroconvulsive seizure (ECS) are predominantly focused on animal models in young adulthood. Given that putative transcriptional, neurogenic, and neuroplastic mechanisms implicated in the behavioral effects of chronic ECS themselves exhibit age-dependent modulation, it remains unknown whether the molecular and cellular targets of chronic ECS vary with age. METHODS We subjected young adult (2-3 months) and middle-aged (12-13 months), male Sprague Dawley rats to sham or chronic ECS and assessed for despair-like behavior, hippocampal gene expression, hippocampal neurogenesis, and neuroplastic changes in the extracellular matrix, reelin, and perineuronal net numbers. RESULTS Chronic ECS reduced despair-like behavior at both ages, accompanied by overlapping and unique changes in activity-dependent and trophic factor gene expression. Although chronic ECS had a similar impact on quiescent neural progenitor numbers at both ages, the eventual increase in hippocampal progenitor proliferation was substantially higher in young adulthood. We noted a decline in reelin⁺ cell numbers following chronic ECS only in young adulthood. In contrast, an age-invariant, robust dissolution of perineuronal net numbers that encapsulate parvalbumin⁺ neurons in the hippocampus were observed following chronic ECS. CONCLUSION Our findings indicate that age is a key variable in determining the nature of chronic ECS-evoked molecular and cellular changes in the hippocampus. This raises the intriguing possibility that chronic ECS may recruit distinct, as well as overlapping, mechanisms to drive antidepressant-like behavioral changes in an age-dependent manner.
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Affiliation(s)
- Minal Jaggar
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Shreya Ghosh
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Balaganesh Janakiraman
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Ashmita Chatterjee
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Megha Maheshwari
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Vani Dewan
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Brendan Hare
- Division of Molecular Psychiatry, Department of Psychiatry and Pharmacology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sukrita Deb
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Dwight Figueiredo
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Ronald S Duman
- Division of Molecular Psychiatry, Department of Psychiatry and Pharmacology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Vidita A Vaidya
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
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Abstract
It is estimated that approximately 280 million people worldwide suffer from depression. Depression is a common disease to us all, and the socioeconomic loss caused by depression is very large. However, there is currently a problem that many depressed patients do not respond to existing antidepressants, including selective serotonin reuptake inhibitors (SSRIs). Therefore, novel and effective therapeutic agents are highly desirable. It has been reported that exercise has preventive effects on depression (antidepressant effects) and that serotonin, whose release increases in the brain with exercise, is involved in exercise-induced antidepressant effects. We focused on the action of serotonin and investigated its role in the antidepressant effect of exercise using gene knockout mice, and then, we found that serotonin type 3 (5-HT3) receptors play an essential role in the antidepressant effect of exercise. We then further investigated the antidepressant effects mediated by 5-HT3 receptors. Our detailed analyses revealed that neurons expressing 5-HT3 receptors are abundant in the subgranular zone of the hippocampal dentate gyrus and produce insulin-like growth factor-1 (IGF-1). In addition, we newly found that the stimulation of 5-HT3 receptors by agonists promotes IGF-1 release in the hippocampus and increases hippocampal neurogenesis via the IGF-1 signaling pathway, resulting in antidepressant effects. Furthermore, we further showed that a 5-HT3 receptor agonist increases hippocampal neurogenesis and exhibits antidepressant effects in mice with depressive-like behavior. A comparison with the effects of existing antidepressant SSRIs revealed that the 5-HT3 receptor-mediated antidepressant action is a new therapeutic mechanism that differs from existing drugs. Our findings suggest a novel 5-HT3 receptor-IGF-1 mechanism, which could lead to the development of new antidepressant drugs for depression based on the molecular mechanism of exercise-induced antidepressant effects and could bring significant benefits to many depressed patients who do not respond to existing drugs such as SSRIs.
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Affiliation(s)
- Makoto Kondo
- Department of Anatomy and Neuroscience, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
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21
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Shi YS, Chen JC, Lin BH, Wang RN, Zhao J, Li S, Zhang Y, Zhang XF. Pteris laeta Wall. and Its New Phytochemical, Pterosinsade A, Promote Hippocampal Neurogenesis via Activating the Wnt Signaling Pathway. J Agric Food Chem 2023; 71:4586-4598. [PMID: 36892329 DOI: 10.1021/acs.jafc.2c08493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Pteris laeta Wall., as a traditional tea, is popular in Southwest China, but its role in preventing cognitive impairment is unclear. In this study, Pteris laeta Wall. extracts (PW) and its active compounds were evaluated for preventive effects on Alzheimer's disease (AD) in vivo and in vitro. The results showed that PW diminished oxidative stress damage and apoptosis of Aβ-induced HT22 cells and also rescued cognitive deficits, and ameliorated pathological injury and inflammatory response in APP/PS1 mice. Besides, a new pterosin sesquiterpene, named pterosinsade A (PA), and nine known compounds were discovered from the EtOAc extract that possessed the best neuroprotective activity. PA reduced apoptosis of APP-overexpressing neural stem cells and promoted their proliferation and neuronal differentiation. Meanwhile, PW and PA promoted hippocampal neurogenesis, which proved to be associated with activating the Wnt signaling pathway. These findings suggest that PW and PA are candidates for AD prevention.
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Affiliation(s)
- Yu-Sheng Shi
- National-Local Joint Engineering Research Center for Drug-Research and Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian 116044, China
- Academy of Integrative Medicine, Dalian Medical University, Dalian 116044, China
| | - Ji-Cong Chen
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Bi-Hui Lin
- The Fifth Affiliated Hospital, Southern Medical University, Guangzhou 510920, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Ruo-Nan Wang
- National-Local Joint Engineering Research Center for Drug-Research and Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian 116044, China
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116600, China
| | - Jie Zhao
- National-Local Joint Engineering Research Center for Drug-Research and Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian 116044, China
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116600, China
| | - Sheng Li
- National-Local Joint Engineering Research Center for Drug-Research and Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian 116044, China
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116600, China
| | - Yan Zhang
- The Fifth Affiliated Hospital, Southern Medical University, Guangzhou 510920, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
- Chiba University, Matsudo 2718501, Japan
| | - Xu-Fu Zhang
- The Fifth Affiliated Hospital, Southern Medical University, Guangzhou 510920, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
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22
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Tfilin M, Gobshtis N, Fozailoff D, Fraifeld VE, Turgeman G. Polarized Anti-Inflammatory Mesenchymal Stem Cells Increase Hippocampal Neurogenesis and Improve Cognitive Function in Aged Mice. Int J Mol Sci 2023; 24. [PMID: 36901920 DOI: 10.3390/ijms24054490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
Age-related decline in cognitive functions is associated with reduced hippocampal neurogenesis caused by changes in the systemic inflammatory milieu. Mesenchymal stem cells (MSC) are known for their immunomodulatory properties. Accordingly, MSC are a leading candidate for cell therapy and can be applied to alleviate inflammatory diseases as well as aging frailty via systemic delivery. Akin to immune cells, MSC can also polarize into pro-inflammatory MSC (MSC1) and anti-inflammatory MSC (MSC2) following activation of Toll-like receptor 4 (TLR4) and TLR3, respectively. In the present study, we apply pituitary adenylate cyclase-activating peptide (PACAP) to polarize bone-marrow-derived MSC towards an MSC2 phenotype. Indeed, we found that polarized anti-inflammatory MSC were able to reduce the plasma levels of aging related chemokines in aged mice (18-months old) and increased hippocampal neurogenesis following systemic administration. Similarly, aged mice treated with polarized MSC displayed improved cognitive function in the Morris water maze and Y-maze assays compared with vehicle- and naïve-MSC-treated mice. Changes in neurogenesis and Y-maze performance were negatively and significantly correlated with sICAM, CCL2 and CCL12 serum levels. We conclude that polarized PACAP-treated MSC present anti-inflammatory properties that can mitigate age-related changes in the systemic inflammatory milieu and, as a result, ameliorate age related cognitive decline.
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23
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Gasperini C, Tuntevski K, Beatini S, Pelizzoli R, Lo Van A, Mangoni D, Cossu RM, Pascarella G, Bianchini P, Bielefeld P, Scarpato M, Pons‐Espinal M, Sanges R, Diaspro A, Fitzsimons CP, Carninci P, Gustincich S, De Pietri Tonelli D. Piwil2 (Mili) sustains neurogenesis and prevents cellular senescence in the postnatal hippocampus. EMBO Rep 2023; 24:e53801. [PMID: 36472244 PMCID: PMC9900342 DOI: 10.15252/embr.202153801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/25/2022] [Accepted: 11/10/2022] [Indexed: 12/12/2022] Open
Abstract
Adult neural progenitor cells (aNPCs) ensure lifelong neurogenesis in the mammalian hippocampus. Proper regulation of aNPC fate has thus important implications for brain plasticity and healthy aging. Piwi proteins and the small noncoding RNAs interacting with them (piRNAs) have been proposed to control memory and anxiety, but the mechanism remains elusive. Here, we show that Piwil2 (Mili) is essential for proper neurogenesis in the postnatal mouse hippocampus. RNA sequencing of aNPCs and their differentiated progeny reveal that Mili and piRNAs are dynamically expressed in neurogenesis. Depletion of Mili and piRNAs in the adult hippocampus impairs aNPC differentiation toward a neural fate, induces senescence, and generates reactive glia. Transcripts modulated upon Mili depletion bear sequences complementary or homologous to piRNAs and include repetitive elements and mRNAs encoding essential proteins for proper neurogenesis. Our results provide evidence of a critical role for Mili in maintaining fitness and proper fate of aNPCs, underpinning a possible involvement of the piRNA pathway in brain plasticity and successful aging.
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Affiliation(s)
- Caterina Gasperini
- Neurobiology of miRNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
| | - Kiril Tuntevski
- Neurobiology of miRNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
- The Open University Affiliated Research Centre at Istituto Italiano di Tecnologia (ARC@IIT)GenoaItaly
| | - Silvia Beatini
- Neurobiology of miRNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
| | - Roberta Pelizzoli
- Neurobiology of miRNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
| | - Amanda Lo Van
- Neurobiology of miRNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
| | - Damiano Mangoni
- Central RNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
| | - Rosa M Cossu
- Central RNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
| | - Giovanni Pascarella
- Division of Genomic TechnologiesRIKEN Center for Life Science TechnologiesYokohamaJapan
| | - Paolo Bianchini
- Nanoscopy, CHT ErzelliIstituto Italiano di TecnologiaGenoaItaly
| | - Pascal Bielefeld
- Swammerdam Institute for Life Sciences, Faculty of ScienceUniversity of AmsterdamAmsterdamThe Netherlands
| | | | | | - Remo Sanges
- Central RNA LaboratoryIstituto Italiano di TecnologiaGenoaItaly
- Area of NeuroscienceSISSATriesteItaly
| | - Alberto Diaspro
- Nanoscopy, CHT ErzelliIstituto Italiano di TecnologiaGenoaItaly
| | - Carlos P Fitzsimons
- Swammerdam Institute for Life Sciences, Faculty of ScienceUniversity of AmsterdamAmsterdamThe Netherlands
| | - Piero Carninci
- Division of Genomic TechnologiesRIKEN Center for Life Science TechnologiesYokohamaJapan
- Human TechnopoleMilanItaly
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24
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Inoue R, Ni X, Mori H. Blockade of D-serine signaling and adult hippocampal neurogenesis attenuates remote contextual fear memory following multiple memory retrievals in male mice. Front Neurosci 2023; 16:1030702. [PMID: 36685240 PMCID: PMC9845639 DOI: 10.3389/fnins.2022.1030702] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/06/2022] [Indexed: 01/06/2023] Open
Abstract
The retrieval of fear memories induces two opposing processes, reconsolidation, and extinction. The memory reconsolidation is an active process that involves gene expression and updates an existing memory. It is hypothesized that blockade of reconsolidation by manipulating the neurobiological factors, which are mechanistically involved in the process, could weaken or disrupt the original fear memory. The N-methyl-D-aspartate (NMDA) receptor and hippocampal neurogenesis play crucial roles in hippocampus-dependent memory processes, including reconsolidation. Using contextual fear conditioning paradigm with multiple retrievals, we attempted to weaken the original contextual fear memory by repeatedly disrupting retrieval-induced reconsolidation via downregulation of NMDA receptor signaling and inhibition of neurogenesis. In the first experiment, prior to fear conditioning, NMDA receptor signaling was downregulated by the genetic reduction of its co-agonist, D-serine, and the neurogenesis was dampened by focal X-ray irradiation on the hippocampus. We found that simultaneous D-serine reduction and neurogenesis dampening resulted in a progressive decrease in freezing following each retrieval, leading to an attenuation of remote contextual fear memory on day 28. In the second experiment using the same behavioral protocols, after conditioning, pharmacological approaches were conducted to simultaneously block D-serine signaling and neurogenesis, resulting in a similar suppressive effect on the remote fear memory. The present findings provide insights for understanding the role of D-serine-mediated NMDA receptor signaling and neurogenesis in memory retrieval and the maintenance of remote fear memory, and improving the efficacy of exposure-based therapy for the treatment of post-traumatic stress disorder (PTSD).
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Affiliation(s)
- Ran Inoue
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | - Xiance Ni
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan,Graduate School of Innovative Life Science, University of Toyama, Toyama, Japan
| | - Hisashi Mori
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan,*Correspondence: Hisashi Mori,
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25
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Okano H, Takashima K, Takahashi Y, Ojiro R, Tang Q, Ozawa S, Zou X, Koyanagi M, Maronpot RR, Yoshida T, Shibutani M. Progressive disruption of neurodevelopment by mid-gestation exposure to lipopolysaccharides and the ameliorating effect of continuous alpha-glycosyl isoquercitrin treatment. Environ Toxicol 2023; 38:49-69. [PMID: 36125228 DOI: 10.1002/tox.23661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
We investigated the effect of lipopolysaccharide (LPS)-induced maternal immune activation used as a model for producing neurodevelopmental disorders on hippocampal neurogenesis and behaviors in rat offspring by exploring the antioxidant effects of alpha-glycosyl isoquercitrin (AGIQ). Pregnant Sprague-Dawley rats were intraperitoneally injected with LPS (50 μg/kg body weight) at gestational days 15 and 16. AGIQ was administered in the diet to dams at 0.5% (w/w) from gestational day 10 until weaning at postnatal day 21 and then to offspring until adulthood at postnatal day 77. During postnatal life, offspring of LPS-injected animals did not show neuroinflammation or oxidative stress in the brain. At weaning, LPS decreased the numbers of type-2b neural progenitor cells (NPCs) and PCNA+ proliferating cells in the subgranular zone, FOS-expressing granule cells, and GAD67+ hilar interneurons in the dentate gyrus. In adulthood, LPS decreased type-1 neural stem cells, type-2a NPCs, and GAD67+ hilar interneurons, and downregulated Dpysl3, Sst, Fos, Mapk1, Mapk3, Grin2a, Grin2b, Bdnf, and Ntrk2. In adults, LPS suppressed locomotor activity in the open field test and suppressed fear memory acquisition and fear extinction learning in the contextual fear conditioning test. These results indicate that mid-gestation LPS injections disrupt programming of normal neurodevelopment resulting in progressive suppression of hippocampal neurogenesis and synaptic plasticity of newborn granule cells by suppressing GABAergic and glutamatergic neurotransmitter signals and BDNF/TrkB signaling to result in adult-stage behavioral deficits. AGIQ ameliorated most aberrations in hippocampal neurogenesis and synaptic plasticity, as well as behavioral deficits. Effective amelioration by continuous AGIQ treatment starting before LPS injections may reflect both anti-inflammatory and anti-oxidative stress effects during gestation and neuroprotective effects of continuous exposure through adulthood.
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Affiliation(s)
- Hiromu Okano
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Kazumi Takashima
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Yasunori Takahashi
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Ryota Ojiro
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Qian Tang
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Shunsuke Ozawa
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Xinyu Zou
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Mihoko Koyanagi
- Global Scientific and Regulatory Affairs, San-Ei Gen F.F.I. Inc., Osaka, Japan
| | | | - Toshinori Yoshida
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Makoto Shibutani
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Tokyo, Japan
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26
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Abstract
Persistent neurological and neuropsychiatric symptoms affect a substantial fraction of people after COVID-19 and represent a major component of the post-acute COVID-19 syndrome, also known as long COVID. Here, we review what is understood about the pathobiology of post-acute COVID-19 impact on the CNS and discuss possible neurobiological underpinnings of the cognitive symptoms affecting COVID-19 survivors. We propose the chief mechanisms that may contribute to this emerging neurological health crisis.
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Affiliation(s)
- Michelle Monje
- Department of Neurology, Stanford University, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford University, USA.
| | - Akiko Iwasaki
- Department of Immunobiology, Yale University, New Haven, CT 06520, USA; Howard Hughes Medical Institute, Yale University, USA.
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27
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Fernández-Castañeda A, Lu P, Geraghty AC, Song E, Lee MH, Wood J, O'Dea MR, Dutton S, Shamardani K, Nwangwu K, Mancusi R, Yalçın B, Taylor KR, Acosta-Alvarez L, Malacon K, Keough MB, Ni L, Woo PJ, Contreras-Esquivel D, Toland AMS, Gehlhausen JR, Klein J, Takahashi T, Silva J, Israelow B, Lucas C, Mao T, Peña-Hernández MA, Tabachnikova A, Homer RJ, Tabacof L, Tosto-Mancuso J, Breyman E, Kontorovich A, McCarthy D, Quezado M, Vogel H, Hefti MM, Perl DP, Liddelow S, Folkerth R, Putrino D, Nath A, Iwasaki A, Monje M. Mild respiratory COVID can cause multi-lineage neural cell and myelin dysregulation. Cell 2022; 185:2452-2468.e16. [PMID: 35768006 PMCID: PMC9189143 DOI: 10.1016/j.cell.2022.06.008] [Citation(s) in RCA: 184] [Impact Index Per Article: 92.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 05/04/2022] [Accepted: 06/07/2022] [Indexed: 12/13/2022]
Abstract
COVID survivors frequently experience lingering neurological symptoms that resemble cancer-therapy-related cognitive impairment, a syndrome for which white matter microglial reactivity and consequent neural dysregulation is central. Here, we explored the neurobiological effects of respiratory SARS-CoV-2 infection and found white-matter-selective microglial reactivity in mice and humans. Following mild respiratory COVID in mice, persistently impaired hippocampal neurogenesis, decreased oligodendrocytes, and myelin loss were evident together with elevated CSF cytokines/chemokines including CCL11. Systemic CCL11 administration specifically caused hippocampal microglial reactivity and impaired neurogenesis. Concordantly, humans with lasting cognitive symptoms post-COVID exhibit elevated CCL11 levels. Compared with SARS-CoV-2, mild respiratory influenza in mice caused similar patterns of white-matter-selective microglial reactivity, oligodendrocyte loss, impaired neurogenesis, and elevated CCL11 at early time points, but after influenza, only elevated CCL11 and hippocampal pathology persisted. These findings illustrate similar neuropathophysiology after cancer therapy and respiratory SARS-CoV-2 infection which may contribute to cognitive impairment following even mild COVID.
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Affiliation(s)
| | - Peiwen Lu
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Anna C Geraghty
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Eric Song
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Myoung-Hwa Lee
- National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA
| | - Jamie Wood
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY, USA
| | - Michael R O'Dea
- Neuroscience Institute, NYU Grossman School of Medicine, New York, NY, USA
| | - Selena Dutton
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Kiarash Shamardani
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Kamsi Nwangwu
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Rebecca Mancusi
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Belgin Yalçın
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Kathryn R Taylor
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Lehi Acosta-Alvarez
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Karen Malacon
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Michael B Keough
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Lijun Ni
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Pamelyn J Woo
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | | | | | | | - Jon Klein
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | | | - Julio Silva
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | | | - Carolina Lucas
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Tianyang Mao
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | | | | | - Robert J Homer
- Department of Pathology, Yale University, New Haven, CT, USA
| | - Laura Tabacof
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY, USA
| | - Jenna Tosto-Mancuso
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY, USA
| | - Erica Breyman
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY, USA
| | - Amy Kontorovich
- Cardiovascular Research Institute, Mount Sinai School of Medicine, New York, NY, USA
| | - Dayna McCarthy
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY, USA
| | | | - Hannes Vogel
- Department of Pathology, Stanford University, Stanford, CA, USA
| | - Marco M Hefti
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Daniel P Perl
- Department of Pathology, Uniformed Services University of Health Sciences, Bethesda, MD, USA
| | - Shane Liddelow
- Neuroscience Institute, NYU Grossman School of Medicine, New York, NY, USA; Departments of Neuroscience & Physiology and of Ophthalmology, NYU Grossman School of Medicine, New York, NY, USA; Parekh Center for Interdisciplinary Neurology, NYU Grossman School of Medicine, New York, NY, USA
| | | | - David Putrino
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY, USA
| | - Avindra Nath
- National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA
| | - Akiko Iwasaki
- Department of Immunobiology, Yale University, New Haven, CT, USA; Howard Hughes Medical Institute, Yale University, New Haven, CT, USA.
| | - Michelle Monje
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA; Department of Pathology, Stanford University, Stanford, CA, USA; Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA.
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28
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Huang F, Marungruang N, Kostiuchenko O, Kravchenko N, Burleigh S, Prykhodko O, Hållenius FF, Heyman-Lindén L. Identification of Nordic Berries with Beneficial Effects on Cognitive Outcomes and Gut Microbiota in High-Fat-Fed Middle-Aged C57BL/6J Mice. Nutrients 2022; 14:2734. [PMID: 35807915 PMCID: PMC9269296 DOI: 10.3390/nu14132734] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 02/07/2023] Open
Abstract
High-fat diets are associated with neuronal and memory dysfunction. Berries may be useful in improving age-related memory deficits in humans, as well as in mice receiving high-fat diets. Emerging research has also demonstrated that brain health and cognitive function may be related to the dynamic changes in the gut microbiota. In this study, the impact of Nordic berries on the brain and the gut microbiota was investigated in middle-aged C57BL/6J mice. The mice were fed high-fat diets (60%E fat) supplemented with freeze-dried powder (6% dwb) of bilberry, lingonberry, cloudberry, blueberry, blackcurrant, and sea buckthorn for 4 months. The results suggest that supplementation with bilberry, blackcurrant, blueberry, lingonberry, and (to some extent) cloudberry has beneficial effects on spatial cognition, as seen by the enhanced performance following the T-maze alternation test, as well as a greater proportion of DCX-expressing cells with prolongation in hippocampus. Furthermore, the proportion of the mucosa-associated symbiotic bacteria Akkermansia muciniphila increased by 4-14 times in the cecal microbiota of mice fed diets supplemented with lingonberry, bilberry, sea buckthorn, and blueberry. These findings demonstrate the potential of Nordic berries to preserve memory and cognitive function, and to induce alterations of the gut microbiota composition.
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Affiliation(s)
- Fang Huang
- Division of Biotechnology, Department of Chemistry, Lund University, 221 00 Lund, Sweden
- Aventure AB, Scheelevägen 22, 223 63 Lund, Sweden
| | | | - Olha Kostiuchenko
- Department of Food Technology, Engineering and Nutrition, Lund University, 221 00 Lund, Sweden; (O.K.); (N.K.); (S.B.); (O.P.); (F.F.H.)
- Department of Cytology, Bogomoletz Institute of Physiology, 010 24 Kyiv, Ukraine
| | - Nadiia Kravchenko
- Department of Food Technology, Engineering and Nutrition, Lund University, 221 00 Lund, Sweden; (O.K.); (N.K.); (S.B.); (O.P.); (F.F.H.)
- Department of Cytology, Bogomoletz Institute of Physiology, 010 24 Kyiv, Ukraine
| | - Stephen Burleigh
- Department of Food Technology, Engineering and Nutrition, Lund University, 221 00 Lund, Sweden; (O.K.); (N.K.); (S.B.); (O.P.); (F.F.H.)
| | - Olena Prykhodko
- Department of Food Technology, Engineering and Nutrition, Lund University, 221 00 Lund, Sweden; (O.K.); (N.K.); (S.B.); (O.P.); (F.F.H.)
| | - Frida Fåk Hållenius
- Department of Food Technology, Engineering and Nutrition, Lund University, 221 00 Lund, Sweden; (O.K.); (N.K.); (S.B.); (O.P.); (F.F.H.)
| | - Lovisa Heyman-Lindén
- Berry Lab AB, Scheelevägen 22, 223 63 Lund, Sweden; (N.M.); (L.H.-L.)
- Department of Experimental Medical Science, Lund University, 221 84 Lund, Sweden
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29
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Shi LS, Ji CH, Tang WQ, Liu Y, Zhang W, Guan W. Hippocampal miR-124 Participates in the Pathogenesis of Depression via Regulating the Expression of BDNF in a Chronic Social Defeat Stress Model of Depression. Curr Neurovasc Res 2022; 19:210-218. [PMID: 35838216 DOI: 10.2174/1567202619666220713105306] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 01/27/2023]
Abstract
OBJECTIVE As one of the most prevalent psychiatric disorders, the exact pathogenesis of depression remains elusive. Therefore, there is an urgent need to identify novel antidepressants for effective treatment. MicroRNA-124 (miR-124), the most abundant miRNA in brain tissue, plays a key effect on adult neurogenesis and neuronal differentiation. However, the mechanism of miR-124 in depression has not been clarified so far. The aim of this study is to provide broad insight into the mechanisms underlying depression. METHODS In the study, we used the forced swim test (FST), the tail suspension test (TST), and a Chronic Social Defeat Stress (CSDS) mice model of depression. Quantitative real-time reverse transcription PCR (qRT-PCR), western blotting, immunofluorescence and virus-mediated gene transfer were used together. The level of plasma corticosterone in mice was analyzed by Enzyme Linked Immunosorbent Assay (ELISA). RESULTS It was found that CSDS robustly increased the level of miR-124 in the hippocampus. Genetic knockdown of hippocampal miR-124 produced significant antidepressant-like effects in the CSDS model of depression. Furthermore, AAV-siR-124-EGFP treatment increased the level of plasma corticosterone in CSDS-induced mice. Moreover, it was found that the antidepressant-like effects induced by miR-124 inhibition required the hippocampal BDNF-TrkB system. CONCLUSION Hippocampal miR-124 participated in the pathogenesis of depression by regulating BDNF biosynthesis and was a feasible antidepressant target.
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Affiliation(s)
- Lin-Sheng Shi
- Department of Cardiology, Affiliated Hospital 2 of Nantong University, Nantong 226001, Jiangsu, China
| | - Chun-Hui Ji
- Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong 226001, Jiangsu, China
| | - Wen-Qian Tang
- Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong 226001, Jiangsu, China
| | - Yue Liu
- Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong 226001, Jiangsu, China
| | - Wei Zhang
- Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong 226001, Jiangsu, China
| | - Wei Guan
- Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong 226001, Jiangsu, China
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30
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Attaluri S, Arora M, Madhu LN, Kodali M, Shuai B, Melissari L, Upadhya R, Rao X, Bates A, Mitra E, Ghahfarouki KR, Ravikumar MNV, Shetty AK. Oral Nano-Curcumin in a Model of Chronic Gulf War Illness Alleviates Brain Dysfunction with Modulation of Oxidative Stress, Mitochondrial Function, Neuroinflammation, Neurogenesis, and Gene Expression. Aging Dis 2022; 13:583-613. [PMID: 35371600 PMCID: PMC8947830 DOI: 10.14336/ad.2021.0829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/29/2021] [Indexed: 12/14/2022] Open
Abstract
Unrelenting cognitive and mood impairments concomitant with incessant oxidative stress and neuroinflammation are among the significant symptoms of chronic Gulf War Illness (GWI). Curcumin (CUR), an antiinflammatory compound, has shown promise to alleviate brain dysfunction in a model of GWI following intraperitoneal administrations at a high dose. However, low bioavailability after oral treatment has hampered its clinical translation. Therefore, this study investigated the efficacy of low-dose, intermittent, oral polymer nanoparticle encapsulated CUR (nCUR) for improving brain function in a rat model of chronic GWI. Intermittent administration of 10 or 20 mg/Kg nCUR for 8 weeks in the early phase of GWI improved brain function and reduced oxidative stress (OS) and neuroinflammation. We next examined the efficacy of 12-weeks of intermittent nCUR at 10 mg/Kg in GWI animals, with treatment commencing 8 months after exposure to GWI-related chemicals and stress, mimicking treatment for the persistent cognitive and mood dysfunction displayed by veterans with GWI. GWI rats receiving nCUR exhibited better cognitive and mood function associated with improved mitochondrial function and diminished neuroinflammation in the hippocampus. Improved mitochondrial function was evident from normalized expression of OS markers, antioxidants, and mitochondrial electron transport genes, and complex proteins. Lessened neuroinflammation was noticeable from reductions in astrocyte hypertrophy, NF-kB, activated microglia with NLRP3 inflammasomes, and multiple proinflammatory cytokines. Moreover, nCUR treated animals displayed enhanced neurogenesis with a normalized expression of synaptophysin puncta, and multiple genes linked to cognitive dysfunction. Thus, low-dose, intermittent, oral nCUR therapy has promise for improving brain function in veterans with GWI.
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Affiliation(s)
- Sahithi Attaluri
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Meenakshi Arora
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas, USA
| | - Leelavathi N Madhu
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Maheedhar Kodali
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Bing Shuai
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Laila Melissari
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Raghavendra Upadhya
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Xiaolan Rao
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Adrian Bates
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Eeshika Mitra
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Keyhan R Ghahfarouki
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - M. N. V Ravikumar
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas, USA
| | - Ashok K Shetty
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
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31
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Xu Y, Liu Z, Xu S, Li C, Li M, Cao S, Sun Y, Dai H, Guo Y, Chen X, Liang W. Scientific Evidences of Calorie Restriction and Intermittent Fasting for Neuroprotection in Traumatic Brain Injury Animal Models: A Review of the Literature. Nutrients 2022; 14:1431. [PMID: 35406044 PMCID: PMC9002547 DOI: 10.3390/nu14071431] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/28/2022] [Accepted: 03/28/2022] [Indexed: 12/11/2022] Open
Abstract
It has widely been accepted that food restriction (FR) without malnutrition has multiple health benefits. Various calorie restriction (CR) and intermittent fasting (IF) regimens have recently been reported to exert neuroprotective effects in traumatic brain injury (TBI) through variable mechanisms. However, the evidence connecting CR or IF to neuroprotection in TBI as well as current issues remaining in this research field have yet to be reviewed in literature. The objective of our review was therefore to weigh the evidence that suggests the connection between CR/IF with recovery promotion following TBI. Medline, Google Scholar and Web of Science were searched from inception to 25 February 2022. An overwhelming number of results generated suggest that several types of CR/IF play a promising role in promoting post-TBI recovery. This recovery is believed to be achieved by alleviating mitochondrial dysfunction, promoting hippocampal neurogenesis, inhibiting glial cell responses, shaping neural cell plasticity, as well as targeting apoptosis and autophagy. Further, we represent our views on the current issues and provide thoughts on the future direction of this research field.
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Affiliation(s)
- Yang Xu
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Zejie Liu
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Z.L.); (H.D.)
| | - Shuting Xu
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Chengxian Li
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Manrui Li
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (M.L.); (S.C.)
| | - Shuqiang Cao
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (M.L.); (S.C.)
| | - Yuwen Sun
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Hao Dai
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Z.L.); (H.D.)
| | - Yadong Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha 410013, China;
| | - Xiameng Chen
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Z.L.); (H.D.)
| | - Weibo Liang
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (M.L.); (S.C.)
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32
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Tao R, Huang S, Zhou J, Ye L, Shen X, Wu J, Qian L. Neonatal Supplementation of Oleamide During Suckling Promotes Learning Ability and Memory in Adolescent Mice. J Nutr 2022; 152:889-898. [PMID: 34967906 DOI: 10.1093/jn/nxab442] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/30/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Fatty acid amides (FAMs) are present in breast milk. Oleamide (ODA), a member of the FAM family, has been reported to affect learning and memory-related abilities in animal experiments. OBJECTIVES This study aimed to characterize the temporal changes of FAMs in human milk and sought to examine the effect of ODA supplementation during suckling on postweaning cognitive performance in mice. METHODS FAMs were measured in human milk (postpartum 1-24 wk) by ultra-performance liquid chromatography-triple quadruple mass spectrometry (UPLC-TQ-MS) analysis. We supplemented neonatal C57BL/6J mice of both sexes with vehicle (control), 5 mg/(kg · day) ODA (L-ODA), or 25 mg/(kg · day) ODA (H-ODA) throughout suckling by oral gavage. After weaning, the Morris water maze test and novel object recognition test were performed. Neurogenesis, spinal morphogenesis in the dentate gyrus (DG) region, and hippocampal expression of synaptic markers were analyzed. Data were analyzed by ANOVA and repeated-measures ANOVA. RESULTS ODA (0.566-1.31 mg/L) was the most abundant FAM in breast milk, followed by palmitamide (0.135-0.269 mg/L) and linoleamide (0.046-0.242 mg/L). Compared with the control group, the H-ODA group demonstrated shorter escape latency, shorter travel distance, 113% more platform crossing, and 48% greater discrimination index in behavioral tests (P < 0.05). Additionally, the H-ODA group showed a higher density of 5-ethynyl-2'-deoxyuridine (EdU)+ and EdU+& doublecortin (DCX)+ cells (62% and 53%, respectively), and 52% greater spine density in the DG region than the control group (P < 0.05). The synaptic markers, postsynaptic density protein 95 (PSD95) and synaptophysin (SYP), were upregulated in the H-ODA group compared with the control group (P < 0.05). The L-ODA group also showed shorter escape latency in behavioral tests and 27% greater spine density in the DG region than the control group (P < 0.05). CONCLUSIONS ODA is the most common FAM in human milk. ODA supplementation during suckling promotes learning and memory-related abilities in adolescent mice by augmenting hippocampal neuronal proliferation and boosting synaptic plasticity.
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Affiliation(s)
- Ranran Tao
- Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Shanshan Huang
- Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Jiefei Zhou
- Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Lin Ye
- Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Xiuhua Shen
- Department of Nutrition, School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiang Wu
- Department of Nutrition, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Linxi Qian
- Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
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Smith BM, Saulsbery AI, Sarchet P, Devasthali N, Einstein D, Kirby ED. Oral and Injected Tamoxifen Alter Adult Hippocampal Neurogenesis in Female and Male Mice. eNeuro 2022; 9:ENEURO. [PMID: 35387845 DOI: 10.1523/ENEURO.0422-21.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 02/10/2022] [Accepted: 03/30/2022] [Indexed: 11/21/2022] Open
Abstract
Inducible Cre recombinase facilitates temporal control of genetic recombination in numerous transgenic model systems, a feature which has made it a popular tool for adult neurogenesis studies. One of the most common forms of inducible Cre, CreERT2, requires activation by the selective estrogen receptor modulator tamoxifen (TAM) to initiate recombination of LoxP-flanked sequences. To date, most studies deliver TAM via intraperitoneal injection. But the introduction of TAM-infused commercial chows has recently expanded the possible modes of TAM delivery. Despite the widespread use of TAM-inducible genetic models in adult neurogenesis research, the comparative efficiency and off-target effects of TAM administration protocols is surprisingly infrequently studied. Here, we compare a standard, 5 d TAM injection regimen with voluntary consumption of TAM-infused chow. First, we used adult NestinCreERT2;Rosa-LoxP-STOP-LoxP-EYFP reporter mice to show that two weeks of TAM chow and 5 d of injections led to LoxP recombination in a similar phenotypic population of neural stem and progenitor cells (NSPCs) in the adult dentate gyrus. However, TAM chow resulted in substantially less overall recombination than injections. TAM administration also altered adult neurogenesis, but in different ways depending on administration route: TAM injection disrupted neural progenitor cell proliferation three weeks after TAM, whereas TAM chow increased neuronal differentiation of cells generated during the diet period. These findings provide guidance for selection of TAM administration route and appropriate controls in adult neurogenesis studies using TAM-inducible Cre mice. They also highlight the need for better understanding of off-target effects of TAM in other neurologic processes and organ systems.
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34
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Shimizu S, Maeda N, Takahashi Y, Uomoto S, Takesue K, Ojiro R, Tang Q, Ozawa S, Okano H, Takashima K, Woo GH, Yoshida T, Shibutani M. Oral exposure to aluminum chloride for 28 days suppresses neural stem cell proliferation and increases mature granule cells in adult hippocampal neurogenesis of young-adult rats. J Appl Toxicol 2022; 42:1337-1353. [PMID: 35146777 DOI: 10.1002/jat.4299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/31/2022] [Accepted: 02/07/2022] [Indexed: 11/06/2022]
Abstract
Aluminum (Al), a common light metal, affects the developing nervous system. Developmental exposure to Al chloride (AlCl3 ) induces aberrant neurogenesis by targeting neural stem cells (NSCs) and/or neural progenitor cells (NPCs) in the dentate gyrus (DG) of rats and mice. To investigate whether hippocampal neurogenesis is similarly affected by AlCl3 exposure in a general toxicity study, AlCl3 was orally administered to 5-week-old Sprague Dawley rats at dosages of 0, 4000, or 8000 ppm in drinking water for 28 days. AlCl3 downregulated Sox2 transcript levels in the DG at the highest dosage and produced a dose-dependent decrease of SOX2+ cells without altering numbers of GFAP+ or TBR2+ cells in the subgranular zone, suggesting that AlCl3 decreases Type 2a NPCs. High-dose exposure downregulated Pcna, upregulated Pvalb, and altered expression of genes suggestive of oxidative stress induction (upregulation of Nos2 and downregulation of antioxidant enzyme genes), indicating suppressed proliferation and differentiation of Type 1 NSCs. AlCl3 doses also increased mature granule cells in the DG. Upregulation of Reln may have contributed to an increase of granule cells to compensate for the decrease of Type 2a NPCs. Moreover, upregulation of Calb2, Gria2, Mapk3, and Tgfb3, as well as increased numbers of activated astrocytes in the DG hilus, may represent ameliorating responses against suppressed neurogenesis. These results suggest that 28-day exposure of young-adult rats to AlCl3 differentially targeted NPCs and mature granule cells in hippocampal neurogenesis, yielding a different pattern of disrupted neurogenesis from developmental exposure.
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Affiliation(s)
- Saori Shimizu
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Natsuno Maeda
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Yasunori Takahashi
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Suzuka Uomoto
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Keisuke Takesue
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Ryota Ojiro
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Qian Tang
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Shunsuke Ozawa
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Hiromu Okano
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Kazumi Takashima
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Gye-Hyeong Woo
- Laboratory of Histopathology, Department of Clinical Laboratory Science, Semyung University, Jecheon-si, Chungbuk, Republic of Korea
| | - Toshinori Yoshida
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Makoto Shibutani
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.,Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
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35
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Wang Y, Jiang J, Fu X, Zhang J, Song J, Wang Y, Duan L, Shao P, Xu X, Zeng L, Zhang F. Fe 3O 4@polydopamine nanoparticle-loaded human umbilical cord mesenchymal stem cells improve the cognitive function in Alzheimer's disease mice by promoting hippocampal neurogenesis. Nanomedicine 2022; 40:102507. [PMID: 34883265 DOI: 10.1016/j.nano.2021.102507] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 11/30/2022]
Abstract
One of the most promising treatments for neurodegenerative diseases is the stem cell therapy; however, there are still some limitations in the treatment of Alzheimer's disease. In this study, superparamagnetic nanoparticles composed of magnetic Fe3O4 and polydopamine shells were used to label human umbilical cord mesenchymal stem cells (hUC-MSCs) in order to increase the targeting of hUC-MSCs. Our data suggested that Fe3O4@PDA labeling increase the efficiency of hUC-MSCs entering the brain. Moreover, the water maze test showed that compared with hUC-MSCs only, Fe3O4@PDA-labeled hUC-MSCs improved the cognitive ability of APP/PS1 transgenic mice more significantly. Other experimental data showed that the expression of essential proteins in the hippocampus, such as Aβ, synaptophysin, brain-derived neurotrophic factor, are affected by Fe3O4@PDA coated-hUC-MSCs. The regulation of Fe3O4@PDA coated-hUC-MSCs could improve the memory and cognitive ability of AD mice by excessive generation of neuroprotective factors, which might be considered a viable therapy to treat AD.
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Affiliation(s)
- Yuxiang Wang
- Edmond H. Fischer Signal Transduction Laboratory, College of Life Sciences, Jilin University, Changchun, China
| | - Jinlan Jiang
- Scientific Research Centre of China-Japan Union Hospital, Jilin University, Changchun, China
| | - Xueqi Fu
- Edmond H. Fischer Signal Transduction Laboratory, College of Life Sciences, Jilin University, Changchun, China
| | - Jingtian Zhang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Jiayue Song
- Edmond H. Fischer Signal Transduction Laboratory, College of Life Sciences, Jilin University, Changchun, China
| | - Yu Wang
- Edmond H. Fischer Signal Transduction Laboratory, College of Life Sciences, Jilin University, Changchun, China
| | - Lian Duan
- Scientific Research Centre of China-Japan Union Hospital, Jilin University, Changchun, China
| | - Pu Shao
- Scientific Research Centre of China-Japan Union Hospital, Jilin University, Changchun, China
| | - Xuemin Xu
- Department of Biology, College of Arts and Sciences, University of Texas of the Permian Basin, Odessa, TX, USA
| | - Linlin Zeng
- Edmond H. Fischer Signal Transduction Laboratory, College of Life Sciences, Jilin University, Changchun, China.
| | - Fuqiang Zhang
- Scientific Research Centre of China-Japan Union Hospital, Jilin University, Changchun, China.
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36
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Wang H, Abel GM, Storm DR, Xia Z. Adolescent cadmium exposure impairs cognition and hippocampal neurogenesis in C57BL/6 mice. Environ Toxicol 2022; 37:335-348. [PMID: 34741586 PMCID: PMC10942748 DOI: 10.1002/tox.23402] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) is a toxic heavy metal and a significant public health concern. Epidemiological studies suggest that Cd is a potential neurotoxicant, and its exposure is associated with cognitive deficits in children, adults, and seniors. Our previous study has found that adulthood-only Cd exposure can impair cognition in mice. However, few studies have addressed the effects of Cd exposure during adolescence on cognitive behavior in animals later in life. In the present study, we exposed 4-week-old male C57BL/6 mice to 3 mg/L Cd via drinking water for 28 weeks and assessed their hippocampus-dependent learning and memory. Cd did not affect anxiety or locomotor activity in the open field test. However, Cd exposure impaired short-term spatial memory and contextual fear memory in mice. A separate cohort of 4-week-old mice was similarly exposed to Cd for 13 weeks to investigate the potential mechanism of Cd neurotoxicity on cognition. We observed that Cd-treated mice had fewer adult-born cells, adult-born neurons, and a reduced proportion of adult-born cells that differentiated into mature neurons in the subgranular zone of the dentate gyrus. These results suggest that Cd exposure from adolescence to adulthood is sufficient to cause cognitive deficits and impair key processes of hippocampal neurogenesis in mice.
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Affiliation(s)
- Hao Wang
- Toxicology Program, Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Glen M. Abel
- Toxicology Program, Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Daniel R. Storm
- Department of Pharmacology, University of Washington, Seattle, WA, USA
| | - Zhengui Xia
- Toxicology Program, Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
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37
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Fernández-Castañeda A, Lu P, Geraghty AC, Song E, Lee MH, Wood J, Yalçın B, Taylor KR, Dutton S, Acosta-Alvarez L, Ni L, Contreras-Esquivel D, Gehlhausen JR, Klein J, Lucas C, Mao T, Silva J, Peña-Hernández MA, Tabachnikova A, Takahashi T, Tabacof L, Tosto-Mancuso J, Breyman E, Kontorovich A, McCarthy D, Quezado M, Hefti M, Perl D, Folkerth R, Putrino D, Nath A, Iwasaki A, Monje M. Mild respiratory SARS-CoV-2 infection can cause multi-lineage cellular dysregulation and myelin loss in the brain. bioRxiv 2022:2022.01.07.475453. [PMID: 35043113 PMCID: PMC8764721 DOI: 10.1101/2022.01.07.475453] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Survivors of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) infection frequently experience lingering neurological symptoms, including impairment in attention, concentration, speed of information processing and memory. This long-COVID cognitive syndrome shares many features with the syndrome of cancer therapy-related cognitive impairment (CRCI). Neuroinflammation, particularly microglial reactivity and consequent dysregulation of hippocampal neurogenesis and oligodendrocyte lineage cells, is central to CRCI. We hypothesized that similar cellular mechanisms may contribute to the persistent neurological symptoms associated with even mild SARS-CoV-2 respiratory infection. Here, we explored neuroinflammation caused by mild respiratory SARS-CoV-2 infection - without neuroinvasion - and effects on hippocampal neurogenesis and the oligodendroglial lineage. Using a mouse model of mild respiratory SARS-CoV-2 infection induced by intranasal SARS-CoV-2 delivery, we found white matter-selective microglial reactivity, a pattern observed in CRCI. Human brain tissue from 9 individuals with COVID-19 or SARS-CoV-2 infection exhibits the same pattern of prominent white matter-selective microglial reactivity. In mice, pro-inflammatory CSF cytokines/chemokines were elevated for at least 7-weeks post-infection; among the chemokines demonstrating persistent elevation is CCL11, which is associated with impairments in neurogenesis and cognitive function. Humans experiencing long-COVID with cognitive symptoms (48 subjects) similarly demonstrate elevated CCL11 levels compared to those with long-COVID who lack cognitive symptoms (15 subjects). Impaired hippocampal neurogenesis, decreased oligodendrocytes and myelin loss in subcortical white matter were evident at 1 week, and persisted until at least 7 weeks, following mild respiratory SARS-CoV-2 infection in mice. Taken together, the findings presented here illustrate striking similarities between neuropathophysiology after cancer therapy and after SARS-CoV-2 infection, and elucidate cellular deficits that may contribute to lasting neurological symptoms following even mild SARS-CoV-2 infection.
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Affiliation(s)
| | - Peiwen Lu
- Department of Immunobiology, Yale University, New Haven CT USA
| | - Anna C. Geraghty
- Department of Neurology and Neurological Sciences, Stanford University, Stanford CA USA
| | - Eric Song
- Department of Immunobiology, Yale University, New Haven CT USA
| | - Myoung-Hwa Lee
- National Institute of Neurological Disorders and Stroke, Besthesda MD USA
| | - Jamie Wood
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY USA
| | - Belgin Yalçın
- Department of Neurology and Neurological Sciences, Stanford University, Stanford CA USA
| | - Kathryn R. Taylor
- Department of Neurology and Neurological Sciences, Stanford University, Stanford CA USA
| | - Selena Dutton
- Department of Neurology and Neurological Sciences, Stanford University, Stanford CA USA
| | - Lehi Acosta-Alvarez
- Department of Neurology and Neurological Sciences, Stanford University, Stanford CA USA
| | - Lijun Ni
- Department of Neurology and Neurological Sciences, Stanford University, Stanford CA USA
| | | | | | - Jon Klein
- Department of Immunobiology, Yale University, New Haven CT USA
| | - Carolina Lucas
- Department of Immunobiology, Yale University, New Haven CT USA
| | - Tianyang Mao
- Department of Immunobiology, Yale University, New Haven CT USA
| | - Julio Silva
- Department of Immunobiology, Yale University, New Haven CT USA
| | | | | | | | - Laura Tabacof
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY USA
| | - Jenna Tosto-Mancuso
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY USA
| | - Erica Breyman
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY USA
| | - Amy Kontorovich
- Cardiovascular Research Institute, Mount Sinai School of Medicine, New York, NY USA
| | - Dayna McCarthy
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY USA
| | | | - Marco Hefti
- Department of Pathology, University of Iowa, Iowa City, IA USA
| | - Daniel Perl
- Department of Pathology, Uniformed Services University of Health Sciences, Bethesda MD USA
| | | | - David Putrino
- Abilities Research Center, Department of Rehabilitation and Human Performance, Mount Sinai School of Medicine, New York, NY USA
| | - Avi Nath
- National Institute of Neurological Disorders and Stroke, Besthesda MD USA
| | - Akiko Iwasaki
- Department of Immunobiology, Yale University, New Haven CT USA
- Howard Hughes Medical Institute, Yale University, New Haven CT USA
| | - Michelle Monje
- Department of Neurology and Neurological Sciences, Stanford University, Stanford CA USA
- Howard Hughes Medical Institute, Stanford University, Stanford CA USA
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Abstract
Data accumulated over the past four decades have confirmed that adult hippocampal neurogenesis (HN) plays a key role in the wide spectrum of hippocampal pathology. Epilepsy is a disorder of the central nervous system characterized by spontaneous recurrent seizures. Although neurogenesis in persistent germinative zones is altered in the adult rodent models of epilepsy, the effects of seizure-induced neurogenesis in the epileptic brain, in terms of either a pathological or reparative role, are only beginning to be explored. In this review, we described the most recent advances in neurogenesis in epilepsy and outlooked future directions for neural stem cells (NSCs) and epilepsy-in-a-dish models. We proposed that it may help in refining the underlying molecular mechanisms of epilepsy and improving the therapies and precision medicine for patients with epilepsy.
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Affiliation(s)
- Peng Chen
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, China.,Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan, China
| | - Fuchao Chen
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, China
| | - Yue Wu
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, China
| | - Benhong Zhou
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, China
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Abstract
A significant portion of COVID-19 patients and survivors display marked clinical signs of neurocognitive impairments. SARS-CoV-2-mediated peripheral cytokine storm and its neurotropism appear to elicit the activation of glial cells in the brain proceeding to neuroinflammation. While adult neurogenesis has been identified as a key cellular basis of cognitive functions, neuroinflammation-induced aberrant neuroregenerative plasticity in the hippocampus has been implicated in progressive memory loss in ageing and brain disorders. Notably, recent histological studies of post-mortem human and experimental animal brains indicate that SARS-CoV-2 infection impairs neurogenic process in the hippocampus of the brain due to neuroinflammation. Considering the facts, this article describes the prominent neuropathogenic characteristics and neurocognitive impairments in COVID-19 and emphasizes a viewpoint that neuroinflammation-mediated deterioration of hippocampal neurogenesis could contribute to the onset and progression of dementia in COVID-19. Thus, it necessitates the unmet need for regenerative medicine for the effective management of neurocognitive deficits in COVID-19.
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Affiliation(s)
- Risna K. Radhakrishnan
- Laboratory of Stem Cells and Neuroregeneration, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, India
| | - Mahesh Kandasamy
- Laboratory of Stem Cells and Neuroregeneration, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, India
- Faculty Recharge Programme, University Grants Commission (UGC-FRP), New Delhi, India
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40
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Li Q, Li H, Yao X, Wang C, Liu H, Xu D, Yang C, Zhuang H, Xiao Y, Liu R, Shen S, Zhou S, Fu C, Wang Y, Teng G, Liu L. Stress Response and Hearing Loss Differentially Contribute to Dynamic Alterations in Hippocampal Neurogenesis and Microglial Reactivity in Mice Exposed to Acute Noise Exposure. Front Neurosci 2021; 15:749925. [PMID: 34955715 PMCID: PMC8692372 DOI: 10.3389/fnins.2021.749925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 11/09/2021] [Indexed: 12/20/2022] Open
Abstract
Noise-induced hearing loss (NIHL) is one of the most prevalent forms of acquired hearing loss, and it is associated with aberrant microglial status and reduced hippocampal neurogenesis; however, the nature of these associations is far from being elucidated. Beyond its direct effects on the auditory system, exposure to intense noise has previously been shown to acutely activate the stress response, which has increasingly been linked to both microglial activity and adult hippocampal neurogenesis in recent years. Given the pervasiveness of noise pollution in modern society and the important implications of either microglial activity or hippocampal neurogenesis for cognitive and emotional function, this study was designed to investigate how microglial status and hippocampal neurogenesis change over time following acoustic exposure and to analyze the possible roles of the noise exposure-induced stress response and hearing loss in these changes. To accomplish this, adult male C57BL/6J mice were randomly assigned to either a control or noise exposure (NE) group. Auditory function was assessed by measuring ABR thresholds at 20 days post noise exposure. The time-course profile of serum corticosterone levels, microglial status, and hippocampal neurogenesis during the 28 days following noise exposure were quantified by ELISA or immunofluorescence staining. Our results illustrated a permanent moderate-to-severe degree of hearing loss, an early but transient increase in serum corticosterone levels, and time-dependent dynamic alterations in microglial activation status and hippocampal neurogenesis, which both present an early but transient change and a late but enduring change. These findings provide evidence that both the stress response and hearing loss contribute to the dynamic alterations of microglia and hippocampal neurogenesis following noise exposure; moreover, noise-induced permanent hearing loss rather than noise-induced transient stress is more likely to be responsible for perpetuating the neurodegenerative process associated with many neurological diseases.
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Affiliation(s)
- Qian Li
- School of Life Science and Technology, Southeast University, Nanjing, China
| | - Hong Li
- School of Life Science and Technology, Southeast University, Nanjing, China
| | - Xiuting Yao
- Medical College, Southeast University, Nanjing, China
| | - Conghui Wang
- Medical College, Southeast University, Nanjing, China
| | - Haiqing Liu
- School of Life Science and Technology, Southeast University, Nanjing, China
| | - Dan Xu
- School of Public Health, Southeast University, Nanjing, China
| | - Chenxi Yang
- Medical College, Southeast University, Nanjing, China
| | - Hong Zhuang
- Medical College, Southeast University, Nanjing, China
| | - Yu Xiao
- Medical College, Southeast University, Nanjing, China
| | - Rui Liu
- Medical College, Southeast University, Nanjing, China
| | - Sinuo Shen
- Medical College, Southeast University, Nanjing, China
| | - Shaoyang Zhou
- Medical College, Southeast University, Nanjing, China
| | - Chenge Fu
- Medical College, Southeast University, Nanjing, China
| | - Yifan Wang
- Medical College, Southeast University, Nanjing, China
| | - Gaojun Teng
- Jiangsu Key Laboratory of Molecular Imaging and Functional Imaging, Department of Radiology, Medical School, Zhongda Hospital, Southeast University, Nanjing, China
| | - Lijie Liu
- Medical College, Southeast University, Nanjing, China
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41
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Li HZ, Zeng NX, Liu KG, Luo WL, Lu WJ, Wu LL. [Preliminary study on cerebrospinal fluid proteomics of Erxian Decoction against neurogenesis impairment in late-onset depression]. Zhongguo Zhong Yao Za Zhi 2021; 46:6231-6242. [PMID: 34951250 DOI: 10.19540/j.cnki.cjcmm.20210918.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This study aims to elucidate the underlying mechanism of Erxian Decoction(EXD) against neurogenesis impairment in late-onset depression(LOD) rats based on cerebrospinal fluid(CSF) proteomics. A total of 66 20-21-month-old male Wistar rats were randomized into naturally aged(AGED) group, LOD group, and EXD group. All rats received chronic unpredictable mild stress(CUMS) for 6 weeks for LOD modeling except for the AGED group. During the modeling, EXD group was given EXD(ig, twice a day at 4 g·kg~(-1)) and other groups received equivalent amount of normal saline(ig). After modeling, a series of behavioral tests, such as sucrose preference test(SPT), open-field test(OFT), forced swimming test(FST), and Morris water maze test(MWMT) were performed. Immunofluorescence method was used to detect the number of Ki-67/Nesti-positive cells and BrdU/DCX-positive cells in the hippocampal DG area of each group. High-concentration corticosterone(CORT) was combined with D-galactose(D-gal) to simulate the changes of LOD-related stress and aging and the proliferation and differentiation of primary neural stem cells of hippocampus in each group were observed. Data independent acquisition(DIA)-mass spectrometry(MS) was used to analyze the differential proteins in CSF among groups and bioinformatics analysis was performed to explore the biological functions of the proteins. Behavioral tests showed that sucrose consumption in SPT, total traveling distance in OFT, and times of crossing the platform in MWMT were all reduced(P<0.01) and the immobility time in FST was prolonged(P<0.01) in the LOD group compared with those in the AGED group, suggesting that LOD rats had developed depression symptoms such as anhedonia, decreased locomotor activity ability, and cognitive dysfunction. Behavioral abnormalities were alleviated(P<0.01, P<0.05) in the EXD group as compared with those in the LOD group. Immunofluorescence results demonstrated that Ki-67/Nesti-positive cells and BrdU/DCX-positive cells in the hippocampal DG area were fewer(P<0.05) in LOD group than in the AGED group, and the positive cells in the EXD group were more(P<0.05) than those in the LOD group. In vitro experiment showed that the proliferation and differentiation of primary hippocampal neural stem cells under the CORT+D-gal treatment were reduced(P<0.01). The proliferation rate of neural stem cells decreased(P<0.05) in CORT+D-gal+LOD-CSF group but increased(P<0.01) in CORT+D-gal+EXD-CSF group compared with that in the CORT+D-gal group. A total of 2 620 proteins were identified from rat CSF, with 135 differential proteins between the LOD group and AGED group and 176 between EXD group and LOD group. GDF11, NrCAM, NTRK2, and GhR were related to neurogenesis and 39 differential proteins were regulated by both LOD and EXD. EXD demonstrated obvious anti-LOD effect, as it improved the locomotor activity ability and cognitive function of LOD rats and protected the proliferation and differentiation of hippocampal neural stem cells. EXD exerts anti-LOD effect by regulating the proteins related to neurogenesis in CSF, such as GDF11, NrCAM, NTRK2, and GhR and maintaining hippocampal neurogenesis.
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Affiliation(s)
- Hui-Zhen Li
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine Guangzhou 510006, China
| | - Ning-Xi Zeng
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine Guangzhou 510006, China
| | - Kai-Ge Liu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine Guangzhou 510006, China
| | - Wu-Long Luo
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine Guangzhou 510006, China
| | - Wen-Jun Lu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine Guangzhou 510006, China
| | - Li-Li Wu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine Guangzhou 510006, China
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42
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Funabashi D, Wakiyama Y, Muto N, Kita I, Nishijima T. Social isolation is a direct determinant of decreased home-cage activity in mice: A within-subjects study using a body-implantable actimeter. Exp Physiol 2021; 107:133-146. [PMID: 34921441 DOI: 10.1113/ep090132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/13/2021] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? It is generally recognized that social isolation is associated with physical inactivity; however, is social isolation a direct determinant of decreased physical activity? What is the main finding and its importance? We conducted a within-subjects experiment with the aid of a body-implantable actimeter. Our results clearly demonstrated that social isolation decreased home-cage activity in mice. This might have resulted from increased immobility and decreased vigorous activity, suggesting that avoiding social isolation is important to preventing physical inactivity. ABSTRACT An inactive lifestyle can negatively affect physiological and mental health. Social isolation is associated with physical inactivity; however, it remains uncertain whether social isolation is a direct determinant of decreased physical activity. Hence, we assessed whether social isolation decreases home-cage activity using a within-subjects design and examined the effects of social isolation on hippocampal neurogenesis in mice. This study used a body-implantable actimeter called nanotag®, which enabled us to measure home-cage activity despite housing the mice in groups. We first examined the influence of the intraperitoneal implantation of nanotag® on home-cage activity. Although nanotag® implantation decreased home-cage activity temporarily, 7 days post-implantation, it recovered to the same level as that of control (non-implanted) mice, suggesting that implantation of nanotag® does not have a negative influence on home-cage activity if mice undergo a 1-week recovery period after implantation. In the main experiment, after the 1-week baseline measurement performed while in group housing, the mice were placed in a group or in isolation. Home-cage activity was measured for an additional 4 weeks. Home-cage activity in isolated mice during the dark period decreased by 26% from pre-intervention to the last week of intervention. Furthermore, the reduction in the number of 5-minute epochs during which the activity count exceeded 301 (an index of vigorous activity) was significantly larger for isolated mice. Contrary to expectations, social isolation did not impair hippocampal neurogenesis. Our results demonstrate that social isolation is a direct determinant of decreased physical activity, possibly because of reduced vigorous physical activity. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Daisuke Funabashi
- Department of Health Promotion Science, Graduate School of Human Health Science, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo, 192-0397, Japan
| | - Yusuke Wakiyama
- Department of Health Promotion Science, Graduate School of Human Health Science, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo, 192-0397, Japan
| | - Naoya Muto
- Department of Health Promotion Science, Graduate School of Human Health Science, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo, 192-0397, Japan
| | - Ichiro Kita
- Department of Health Promotion Science, Graduate School of Human Health Science, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo, 192-0397, Japan
| | - Takeshi Nishijima
- Department of Health Promotion Science, Graduate School of Human Health Science, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo, 192-0397, Japan
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43
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Aranarochana A, Kaewngam S, Anosri T, Sirichoat A, Pannangrong W, Wigmore P, Welbat JU. Hesperidin Reduces Memory Impairment Associated with Adult Rat Hippocampal Neurogenesis Triggered by Valproic Acid. Nutrients 2021; 13:4364. [PMID: 34959916 PMCID: PMC8708262 DOI: 10.3390/nu13124364] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 11/17/2022] Open
Abstract
Treatment with valproic acid (VPA) deteriorates hippocampal neurogenesis, which leads to memory impairment. Hesperidin (Hsd) is a plant-based bioflavonoid that can augment learning and memory. This study aimed to understand the effect of Hsd on the impairment of hippocampal neurogenesis and memory caused by VPA. The VPA (300 mg/kg) was administered by intraperitoneal injection twice daily for 14 days, and Hsd (100 mg/kg/day) was administered by oral gavage once a day for 21 days. All rats underwent memory evaluation using the novel object location (NOL) and novel object recognition (NOR) tests. Immunofluorescent staining of Ki-67, BrdU/NeuN, and doublecortin (DCX) was applied to determine hippocampal neurogenesis in cell proliferation, neuronal survival, and population of the immature neurons, respectively. VPA-treated rats showed memory impairments in both memory tests. These impairments resulted from VPA-induced decreases in the number of Ki-67-, BrdU/NeuN-, and DCX-positive cells in the hippocampus, leading to memory loss. Nevertheless, the behavioral expression in the co-administration group was improved. After receiving co-administration with VPA and Hsd, the numbers of Ki-67-, BrdU/NeuN-, and DCX-positive cells were improved to the normal levels. These findings suggest that Hsd can reduce the VPA-induced hippocampal neurogenesis down-regulation that results in memory impairments.
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Affiliation(s)
- Anusara Aranarochana
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.A.); (S.K.); (T.A.); (A.S.); (W.P.)
- Neuroscience Research Group, Department of Anatomy, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Soraya Kaewngam
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.A.); (S.K.); (T.A.); (A.S.); (W.P.)
- Neuroscience Research Group, Department of Anatomy, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Tanaporn Anosri
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.A.); (S.K.); (T.A.); (A.S.); (W.P.)
- Neuroscience Research Group, Department of Anatomy, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Apiwat Sirichoat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.A.); (S.K.); (T.A.); (A.S.); (W.P.)
- Neuroscience Research Group, Department of Anatomy, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Wanassanun Pannangrong
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.A.); (S.K.); (T.A.); (A.S.); (W.P.)
| | - Peter Wigmore
- School of Life Sciences, Queen’s Medical Centre, Nottingham University, Nottingham NG7 2QL, UK;
| | - Jariya Umka Welbat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.A.); (S.K.); (T.A.); (A.S.); (W.P.)
- Neuroscience Research Group, Department of Anatomy, Khon Kaen University, Khon Kaen 40002, Thailand
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Loureiro-Campos E, Mateus-Pinheiro A, Patrício P, Soares-Cunha C, Silva J, Sardinha VM, Mendes-Pinheiro B, Silveira-Rosa T, Domingues AV, Rodrigues AJ, Oliveira J, Sousa N, Alves ND, Pinto L. Constitutive deficiency of the neurogenic hippocampal modulator AP2γ promotes anxiety-like behavior and cumulative memory deficits in mice from juvenile to adult periods. eLife 2021; 10:70685. [PMID: 34859784 PMCID: PMC8709574 DOI: 10.7554/elife.70685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 12/02/2021] [Indexed: 11/23/2022] Open
Abstract
The transcription factor activating protein two gamma (AP2γ) is an important regulator of neurogenesis both during embryonic development as well as in the postnatal brain, but its role for neurophysiology and behavior at distinct postnatal periods is still unclear. In this work, we explored the neurogenic, behavioral, and functional impact of a constitutive and heterozygous AP2γ deletion in mice from early postnatal development until adulthood. AP2γ deficiency promotes downregulation of hippocampal glutamatergic neurogenesis, altering the ontogeny of emotional and memory behaviors associated with hippocampus formation. The impairments induced by AP2γ constitutive deletion since early development leads to an anxious-like phenotype and memory impairments as early as the juvenile phase. These behavioral impairments either persist from the juvenile phase to adulthood or emerge in adult mice with deficits in behavioral flexibility and object location recognition. Collectively, we observed a progressive and cumulative impact of constitutive AP2γ deficiency on the hippocampal glutamatergic neurogenic process, as well as alterations on limbic-cortical connectivity, together with functional behavioral impairments. The results herein presented demonstrate the modulatory role exerted by the AP2γ transcription factor and the relevance of hippocampal neurogenesis in the development of emotional states and memory processes.
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Affiliation(s)
- Eduardo Loureiro-Campos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - António Mateus-Pinheiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Patrícia Patrício
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Carina Soares-Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Joana Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Vanessa Morais Sardinha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Bárbara Mendes-Pinheiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Tiago Silveira-Rosa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Ana Verónica Domingues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Ana João Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| | - João Oliveira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal.,IPCA-EST-2Ai, Polytechnic Institute of Cávado and Ave, Applied Artificial Intelligence Laboratory, Campus of IPCA, Barcelos, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Nuno Dinis Alves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
| | - Luísa Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Guimarães, Portugal
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Antonelli F, Casciati A, Belles M, Serra N, Linares-Vidal MV, Marino C, Mancuso M, Pazzaglia S. Long-Term Effects of Ionizing Radiation on the Hippocampus: Linking Effects of the Sonic Hedgehog Pathway Activation with Radiation Response. Int J Mol Sci 2021; 22:ijms222212605. [PMID: 34830484 PMCID: PMC8624704 DOI: 10.3390/ijms222212605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/04/2021] [Accepted: 11/17/2021] [Indexed: 12/29/2022] Open
Abstract
Radiation therapy represents one of the primary treatment modalities for primary and metastatic brain tumors. Although recent advances in radiation techniques, that allow the delivery of higher radiation doses to the target volume, reduce the toxicity to normal tissues, long-term neurocognitive decline is still a detrimental factor significantly affecting quality of life, particularly in pediatric patients. This imposes the need for the development of prevention strategies. Based on recent evidence, showing that manipulation of the Shh pathway carries therapeutic potential for brain repair and functional recovery after injury, here we evaluate how radiation-induced hippocampal alterations are modulated by the constitutive activation of the Shh signaling pathway in Patched 1 heterozygous mice (Ptch1+/-). Our results show, for the first time, an overall protective effect of constitutive Shh pathway activation on hippocampal radiation injury. This activation, through modulation of the proneural gene network, leads to a long-term reduction of hippocampal deficits in the stem cell and new neuron compartments and to the mitigation of radio-induced astrogliosis, despite some behavioral alterations still being detected in Ptch1+/- mice. A better understanding of the pathogenic mechanisms responsible for the neural decline following irradiation is essential for identifying prevention measures to contain the harmful consequences of irradiation. Our data have important translational implications as they suggest a role for Shh pathway manipulation to provide the therapeutic possibility of improving brain repair and functional recovery after radio-induced injury.
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Affiliation(s)
- Francesca Antonelli
- Division of Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), 00123 Rome, Italy; (A.C.); (C.M.); (M.M.)
- Correspondence: (F.A.); (S.P.)
| | - Arianna Casciati
- Division of Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), 00123 Rome, Italy; (A.C.); (C.M.); (M.M.)
| | - Montserrat Belles
- Physiology Unit, School of Medicine, Rovira I Virgili University (URV), 43007 Reus, Spain; (M.B.); (N.S.); (M.V.L.-V.)
| | - Noemi Serra
- Physiology Unit, School of Medicine, Rovira I Virgili University (URV), 43007 Reus, Spain; (M.B.); (N.S.); (M.V.L.-V.)
| | - Maria Victoria Linares-Vidal
- Physiology Unit, School of Medicine, Rovira I Virgili University (URV), 43007 Reus, Spain; (M.B.); (N.S.); (M.V.L.-V.)
| | - Carmela Marino
- Division of Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), 00123 Rome, Italy; (A.C.); (C.M.); (M.M.)
| | - Mariateresa Mancuso
- Division of Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), 00123 Rome, Italy; (A.C.); (C.M.); (M.M.)
| | - Simonetta Pazzaglia
- Division of Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), 00123 Rome, Italy; (A.C.); (C.M.); (M.M.)
- Correspondence: (F.A.); (S.P.)
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46
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Chen W, Liu N, Shen S, Zhu W, Qiao J, Chang S, Dong J, Bai M, Ma L, Wang S, Jia W, Guo X, Li A, Xi J, Jiang C, Kang J. Fetal growth restriction impairs hippocampal neurogenesis and cognition via Tet1 in offspring. Cell Rep 2021; 37:109912. [PMID: 34731622 DOI: 10.1016/j.celrep.2021.109912] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 08/22/2021] [Accepted: 10/09/2021] [Indexed: 12/15/2022] Open
Abstract
Fetal growth restriction (FGR) increases the risk for impaired cognitive function later in life. However, the precise mechanisms remain elusive. Using dexamethasone-induced FGR and protein restriction-influenced FGR mouse models, we observe learning and memory deficits in adult FGR offspring. FGR induces decreased hippocampal neurogenesis from the early post-natal period to adulthood by reducing the proliferation of neural stem cells (NSCs). We further find a persistent decrease of Tet1 expression in hippocampal NSCs of FGR mice. Mechanistically, Tet1 downregulation results in hypermethylation of the Dll3 and Notch1 promoters and inhibition of Notch signaling, leading to reduced NSC proliferation. Overexpression of Tet1 activates Notch signaling, offsets the decline in neurogenesis, and enhances learning and memory abilities in FGR offspring. Our data indicate that a long-term decrease in Tet1/Notch signaling in hippocampal NSCs contributes to impaired neurogenesis following FGR and could serve as potential targets for the intervention of FGR-related cognitive disorders.
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Affiliation(s)
- Wen Chen
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Nana Liu
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Shijun Shen
- Institute of Translational Research, Tongji Hospital, Shanghai Key Laboratory of Signaling and Disease Research, The School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Wei Zhu
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Jing Qiao
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Shujuan Chang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Jianfeng Dong
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Mingliang Bai
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Li Ma
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Shanshan Wang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Wenwen Jia
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Xudong Guo
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Ang Li
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Jiajie Xi
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Cizhong Jiang
- Institute of Translational Research, Tongji Hospital, Shanghai Key Laboratory of Signaling and Disease Research, The School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Jiuhong Kang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
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47
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Devarakonda S, Malipatlolla DK, Patel P, Grandér R, Kuhn HG, Steineck G, Sjöberg F, Rascón A, Nyman M, Eriksson Y, Danial J, Ittner E, Naama Walid R, Prykhodko O, Masuram S, Kalm M, Bull C. Dietary Fiber and the Hippocampal Neurogenic Niche in a Model of Pelvic Radiotherapy. Neuroscience 2021; 475:137-147. [PMID: 34487821 DOI: 10.1016/j.neuroscience.2021.08.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 02/07/2023]
Abstract
We sought to determine whether radiation to the colorectum had an impact on parameters of hippocampal neurogenesis and, if so, whether it could be modulated by a fiber-rich diet. Male C57BL/6J mice were fed a diet containing bioprocessed oat bran or a fiber-free diet, starting two weeks before colorectal irradiation with 4 fractions of 8 Gray or sham-irradiation. Diets were then continued for 1, 6 or 18 weeks, whereafter parameters of hippocampal neurogenesis were analyzed and correlated to serum cytokine levels. No statistically significant changes in neuronal markers or cell proliferation were found at one week post-irradiation. Six weeks post-irradiation there was a decreased cell proliferation in the subgranular zone that appeared slightly more pronounced in irradiated animals on a fiber-free diet and increased numbers of immature neurons per mm2 dentate gyrus in the irradiated mice, with a statistically significant increase in mice on a fiber-rich diet. Microglial abundancy was similar between all groups. 18 weeks post-irradiation, a fiber-free diet had reduced the number of immature neurons, whereas irradiation resulted in an increase. Despite this, the population of mature neurons was stable. Analysis of serum cytokines revealed a negative correlation between MIP1-α and the number of immature neurons one week after irradiation, regardless of diet. Our findings show that pelvic radiotherapy has the potential to cause a long-lasting impact on hippocampal neurogenesis, and dietary interventions may modulate this impact. More in-depth studies on the relationship between irradiation-induced intestinal injury and brain health are warranted.
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Affiliation(s)
- Sravani Devarakonda
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Dilip Kumar Malipatlolla
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Piyush Patel
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Infectious Diseases, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rita Grandér
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - H Georg Kuhn
- Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Gunnar Steineck
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Fei Sjöberg
- Department of Infectious Diseases, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ana Rascón
- Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden
| | - Margareta Nyman
- Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden
| | - Yohanna Eriksson
- Department of Pharmacology, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Jolie Danial
- Department of Pharmacology, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Ella Ittner
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rukaya Naama Walid
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Olena Prykhodko
- Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden
| | - Spandana Masuram
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Marie Kalm
- Department of Pharmacology, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Cecilia Bull
- Division of Clinical Cancer Epidemiology, Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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48
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Levin SG, Pershina EV, Bugaev-Makarovskiy NA, Chernomorets IY, Konakov MV, Arkhipov VI. Why Do Levels Of Anti-inflammatory Cytokines Increase During Memory Acquisition? Neuroscience 2021; 473:159-169. [PMID: 34418518 DOI: 10.1016/j.neuroscience.2021.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/14/2021] [Accepted: 08/12/2021] [Indexed: 12/24/2022]
Abstract
The role of anti-inflammatory cytokines in the mechanisms of learning and memory, modulation of synaptic plasticity in the mammalian brain has not received sufficient attention. These issues are discussed in this review, and among the many cytokines, attention is paid to the most studied in this respect IL-10, IL-4, IL-13 and TGF-β. The level of anti-inflammatory cytokines in the brain tends to increase during memory acquisition, but the significance of such an increase is unclear. We hypothesize that anti-inflammatory cytokines primarily protect and optimize the functioning of neuronal circuits involved in information processing. The increased local activity of neurons during memory acquisition activates many signaling molecules, and some of them can trigger unwanted processes (including neuroinflammation), but increased levels of anti-inflammatory cytokines prevent this triggering. Each of the anti-inflammatory cytokines plays a specific role in supporting information processing. For example, the role of IL-4 and IL-13 in recruiting T cells to the meninges during training in healthy animals has been most studied. It has also been shown that TGF-β is able to optimize late stage LTP in the hippocampus and support the consolidation of memory traces in behavioral studies. Cytokines have an effect on learning and memory through their influence on neuroplasticity, neurogenesis in the hippocampus and regulation of the neurovascular unit. Experiments have shown such an effect, and the data obtained create the prerequisites for new therapeutic approaches to the correction of cognitive impairments.
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Affiliation(s)
- Sergey G Levin
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Ekaterina V Pershina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia.
| | - Nickolay A Bugaev-Makarovskiy
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Irina Yu Chernomorets
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Maxim V Konakov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Vladimir I Arkhipov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
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49
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Badner A, Reinhardt EK, Nguyen TV, Midani N, Marshall AT, Lepe CA, Echeverria K, Lepe JJ, Torrecampo V, Bertan SH, Tran SH, Anderson AJ, Cummings BJ. Freshly Thawed Cryobanked Human Neural Stem Cells Engraft within Endogenous Neurogenic Niches and Restore Cognitive Function after Chronic Traumatic Brain Injury. J Neurotrauma 2021; 38:2731-2746. [PMID: 34130484 DOI: 10.1089/neu.2021.0045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Human neural stem cells (hNSCs) have potential as a cell therapy after traumatic brain injury (TBI). While various studies have demonstrated the efficacy of NSCs from ongoing culture, there is a significant gap in our understanding of freshly thawed cells from cryobanked stocks-a more clinically relevant source. To address these shortfalls, the therapeutic potential of our previously validated Shef-6.0 human embryonic stem cell (hESC)-derived hNSC line was tested after long-term cryostorage and thawing before transplant. Immunodeficient athymic nude rats received a moderate unilateral controlled cortical impact (CCI) injury. At four weeks post-injury, 6 × 105 freshly thawed hNSCs were transplanted into six injection sites (two ipsi- and four contra-lateral) with 53.4% of cells surviving three months post-transplant. Interestingly, most hNSCs were engrafted in the meninges and the lining of lateral ventricles, associated with high CXCR4 expression and a chemotactic response to SDF1alpha (CXCL12). While some expressed markers of neuron, astrocyte, and oligodendrocyte lineages, the majority remained progenitors, identified through doublecortin expression (78.1%). Importantly, transplantation resulted in improved spatial learning and memory in Morris water maze navigation and reduced risk taking in an elevated plus maze. Investigating potential mechanisms of action, we identified an increase in ipsilateral host hippocampus cornu ammonis (CA) neuron survival, contralateral dentate gyrus (DG) volume, and DG neural progenitor morphology as well as a reduction in neuroinflammation. Together, these findings validate the potential of hNSCs to improve function after TBI and demonstrate that long-term biobanking of cells and thawing aliquots before use may be suitable for clinical deployment.
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Affiliation(s)
- Anna Badner
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
| | - Emily K Reinhardt
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, California, USA
| | - Theodore V Nguyen
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
| | - Nicole Midani
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
| | - Andrew T Marshall
- Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Cherie A Lepe
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
| | - Karla Echeverria
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
| | - Javier J Lepe
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
| | - Vincent Torrecampo
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
| | - Sara H Bertan
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, California, USA
| | - Serinee H Tran
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, California, USA
| | - Aileen J Anderson
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, California, USA
- Physical Medicine and Rehabilitation, University of California, Irvine, Irvine, California, USA
- Anatomy and Neurobiology, University of California, Irvine, Irvine, California, USA
| | - Brian J Cummings
- Sue and Bill Gross Stem Cell Center, University of California, Irvine, Irvine, California, USA
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, California, USA
- Physical Medicine and Rehabilitation, University of California, Irvine, Irvine, California, USA
- Anatomy and Neurobiology, University of California, Irvine, Irvine, California, USA
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50
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Yu H, Zhang C, Xia J, Xu B. Treadmill Exercise Ameliorates Adult Hippocampal Neurogenesis Possibly by Adjusting the APP Proteolytic Pathway in APP/PS1 Transgenic Mice. Int J Mol Sci 2021; 22:9570. [PMID: 34502477 DOI: 10.3390/ijms22179570] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 12/19/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder known to cause cognitive impairment among the elderly worldwide. Although physical exercise-induced adult hippocampal neurogenesis (AHN) improves cognition, understanding its underlying molecular mechanisms requires further investigation using AD mouse models. In this present work, we subjected amyloid precursor protein (APP)/PS1 mice to a 12-week aerobic treadmill exercise to investigate AHN and its potential mechanisms. We divided 3-month-old littermates wild-type and APP/PS1 transgenic male mice into four groups, and the exercise groups performed 12-week treadmill exercise. Next, we evaluated the influence of treadmill exercise on learning and memory capacity, AHN, and APP proteolytic pathway-related factors. As per our results, the treadmill exercise was able to improve the hippocampal microenvironment in APP/PS1 mice probably by regulating various neurotrophic factors and secretases resulting in APP cleavage through a non-amyloidogenic pathway, which seems to further promote new cell proliferation, survival, and differentiation, enhancing hippocampal neurogenesis. All of these effects ameliorate learning and memory capacity. This study provides a theoretical and experimental basis for understanding AHN in an AD mouse model, which is beneficial for preventing and treating AD.
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