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Colín-Martínez E, Espino-de-la-Fuente C, Arias C. Age- and Sex-Associated Wnt Signaling Dysregulation is Exacerbated from the Early Stages of Neuropathology in an Alzheimer's Disease Model. Neurochem Res 2024:10.1007/s11064-024-04224-7. [PMID: 39167347 DOI: 10.1007/s11064-024-04224-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 07/09/2024] [Accepted: 07/29/2024] [Indexed: 08/23/2024]
Abstract
Emerging studies suggest that Wnt signaling is dysregulated in the brains of AD patients, suggesting that this pathway may also contribute to disease progression. However, it remains to be determined whether alterations in the Wnt pathway are the cause or consequence of this disease and which elements of Wnt signaling mainly contribute to the appearance of AD histopathological markers early in disease compared to what occurs during normal aging. The present study aimed to describe the status of several canonical Wnt pathway components and the expression of the AD marker p-tau in the hippocampi of female and male 3xTg-AD mice during disease progression compared to those during normal aging. We analyzed the levels of the canonical Wnt components Wnt7a, Dkk-1, LRP6 and GSK3β as well as the levels of p-tau and BDNF at 3, 6, 9-12 and 18 months of age. We found a gradual increase in Dkk-1 levels during aging prior to Wnt7a and LRP5/6 depletion, which was strongly exacerbated in 3xTg-AD mice even at young ages and correlated with GSK3β activation and p-tau-S202/Thr205 expression. Dkk-1 upregulation, as well as the level of p-tau, was significantly greater in females than in males. Our results suggest that Dkk-1 upregulation is involved in the expression of several features of AD at early stages, which supports the possibility of positively modulating the canonical Wnt pathway as a therapeutic tool to delay this disease at early stages.
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Affiliation(s)
- Elizabeth Colín-Martínez
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, 04510, México
| | - César Espino-de-la-Fuente
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, 04510, México
| | - Clorinda Arias
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, 04510, México.
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2
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Wetzel A, Lei SH, Liu T, Hughes MP, Peng Y, McKay T, Waddington SN, Grannò S, Rahim AA, Harvey K. Dysregulated Wnt and NFAT signaling in a Parkinson's disease LRRK2 G2019S knock-in model. Sci Rep 2024; 14:12393. [PMID: 38811759 PMCID: PMC11137013 DOI: 10.1038/s41598-024-63130-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 05/24/2024] [Indexed: 05/31/2024] Open
Abstract
Parkinson's disease (PD) is a progressive late-onset neurodegenerative disease leading to physical and cognitive decline. Mutations of leucine-rich repeat kinase 2 (LRRK2) are the most common genetic cause of PD. LRRK2 is a complex scaffolding protein with known regulatory roles in multiple molecular pathways. Two prominent examples of LRRK2-modulated pathways are Wingless/Int (Wnt) and nuclear factor of activated T-cells (NFAT) signaling. Both are well described key regulators of immune and nervous system development as well as maturation. The aim of this study was to establish the physiological and pathogenic role of LRRK2 in Wnt and NFAT signaling in the brain, as well as the potential contribution of the non-canonical Wnt/Calcium pathway. In vivo cerebral Wnt and NFATc1 signaling activity was quantified in LRRK2 G2019S mutant knock-in (KI) and LRRK2 knockout (KO) male and female mice with repeated measures over 28 weeks, employing lentiviral luciferase biosensors, and analyzed using a mixed-effect model. To establish spatial resolution, we investigated tissues, and primary neuronal cell cultures from different brain regions combining luciferase signaling activity, immunohistochemistry, qPCR and western blot assays. Results were analyzed by unpaired t-test with Welch's correction or 2-way ANOVA with post hoc corrections. In vivo Wnt signaling activity in LRRK2 KO and LRRK2 G2019S KI mice was increased significantly ~ threefold, with a more pronounced effect in males (~ fourfold) than females (~ twofold). NFATc1 signaling was reduced ~ 0.5-fold in LRRK2 G2019S KI mice. Brain tissue analysis showed region-specific expression changes in Wnt and NFAT signaling components. These effects were predominantly observed at the protein level in the striatum and cerebral cortex of LRRK2 KI mice. Primary neuronal cell culture analysis showed significant genotype-dependent alterations in Wnt and NFATc1 signaling under basal and stimulated conditions. Wnt and NFATc1 signaling was primarily dysregulated in cortical and hippocampal neurons respectively. Our study further built on knowledge of LRRK2 as a Wnt and NFAT signaling protein. We identified complex changes in neuronal models of LRRK2 PD, suggesting a role for mutant LRRK2 in the dysregulation of NFAT, and canonical and non-canonical Wnt signaling.
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Affiliation(s)
- Andrea Wetzel
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
- Institute of Physiology, Medical Faculty, Otto-von-Guericke-University, 39120, Magdeburg, Germany
| | - Si Hang Lei
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Tiansheng Liu
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Michael P Hughes
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Yunan Peng
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Tristan McKay
- Department of Life Sciences, Dalton Building, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Simon N Waddington
- Gene Transfer Technology Group, University College London, 86-96 Chenies Mews, London, WC1E 6HXZ, UK
- Wits/SAMRC Antiviral Gene Therapy Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Simone Grannò
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
- Division of Neurosurgery, Department of Clinical Neurosciences, Geneva University Hospitals, Rue Gabrielle-Perret Gentil 4, 1205, Geneva, Switzerland
| | - Ahad A Rahim
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Kirsten Harvey
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK.
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Erdogan MA, Gurbuz O, Bozkurt MF, Erbas O. Prenatal Exposure to COVID-19 mRNA Vaccine BNT162b2 Induces Autism-Like Behaviors in Male Neonatal Rats: Insights into WNT and BDNF Signaling Perturbations. Neurochem Res 2024; 49:1034-1048. [PMID: 38198049 PMCID: PMC10902102 DOI: 10.1007/s11064-023-04089-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 12/16/2023] [Accepted: 12/19/2023] [Indexed: 01/11/2024]
Abstract
The COVID-19 pandemic catalyzed the swift development and distribution of mRNA vaccines, including BNT162b2, to address the disease. Concerns have arisen about the potential neurodevelopmental implications of these vaccines, especially in susceptible groups such as pregnant women and their offspring. This study aimed to investigate the gene expression of WNT, brain-derived neurotrophic factor (BDNF) levels, specific cytokines, m-TOR expression, neuropathology, and autism-related neurobehavioral outcomes in a rat model. Pregnant rats received the COVID-19 mRNA BNT162b2 vaccine during gestation. Subsequent evaluations on male and female offspring included autism-like behaviors, neuronal counts, and motor performance. Molecular techniques were applied to quantify WNT and m-TOR gene expressions, BDNF levels, and specific cytokines in brain tissue samples. The findings were then contextualized within the extant literature to identify potential mechanisms. Our findings reveal that the mRNA BNT162b2 vaccine significantly alters WNT gene expression and BDNF levels in both male and female rats, suggesting a profound impact on key neurodevelopmental pathways. Notably, male rats exhibited pronounced autism-like behaviors, characterized by a marked reduction in social interaction and repetitive patterns of behavior. Furthermore, there was a substantial decrease in neuronal counts in critical brain regions, indicating potential neurodegeneration or altered neurodevelopment. Male rats also demonstrated impaired motor performance, evidenced by reduced coordination and agility. Our research provides insights into the effects of the COVID-19 mRNA BNT162b2 vaccine on WNT gene expression, BDNF levels, and certain neurodevelopmental markers in a rat model. More extensive studies are needed to confirm these observations in humans and to explore the exact mechanisms. A comprehensive understanding of the risks and rewards of COVID-19 vaccination, especially during pregnancy, remains essential.
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Affiliation(s)
- Mumin Alper Erdogan
- Faculty of Medicine, Department of Physiology, Izmir Katip Celebi University, Izmir, Turkey.
| | - Orkun Gurbuz
- Department of Radiotherapy Programme, Istinye University, Istanbul, Turkey
| | - Mehmet Fatih Bozkurt
- Faculty of Veterinary Medicine, Department of Pathology, Afyon Kocatepe University, Afyon, Turkey
| | - Oytun Erbas
- Faculty of Medicine, Department of Physiology, Demiroğlu Bilim University, Istanbul, Turkey
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Fu Y, Shen K, Wang H, Wang S, Wang X, Zhu L, Zheng Y, Zou T, Ci H, Dong Q, Qin LX. Alpha5 nicotine acetylcholine receptor subunit promotes intrahepatic cholangiocarcinoma metastasis. Signal Transduct Target Ther 2024; 9:63. [PMID: 38453934 PMCID: PMC10920868 DOI: 10.1038/s41392-024-01761-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 03/09/2024] Open
Abstract
Neurotransmitter-initiated signaling pathway were reported to play an important role in regulating the malignant phenotype of tumor cells. Cancer cells could exhibit a "neural addiction" property and build up local nerve networks to achieve an enhanced neurotransmitter-initiated signaling through nerve growth factor-mediated axonogenesis. Targeting the dysregulated nervous systems might represent a novel strategy for cancer treatment. However, whether intrahepatic cholangiocarcinoma (ICC) could build its own nerve networks and the role of neurotransmitters in the progression ICC remains largely unknown. Immunofluorescence staining and Enzyme-linked immunosorbent assay suggested that ICC cells and the infiltrated nerves could generate a tumor microenvironment rich in acetylcholine that promotes ICC metastasis by inducing epithelial-mesenchymal transition (EMT). Acetylcholine promoted ICC metastasis through interacting with its receptor, alpha 5 nicotine acetylcholine receptor subunits (CHRNA5). Furthermore, acetylcholine/CHRNA5 axis activated GSK3β/β-catenin signaling pathway partially through the influx of Ca2+-mediated activation of Ca/calmodulin-dependent protein kinases (CAMKII). In addition, acetylcholine signaling activation also expanded nerve infiltration through increasing the expression of Brain-Derived Neurotrophic Factor (BDNF), which formed a feedforward acetylcholine-BDNF axis to promote ICC progression. KN93, a small-molecule inhibitor of CAMKII, significantly inhibited the migration and enhanced the sensitivity to gemcitabine of ICC cells. Above all, Acetylcholine/CHRNA5 axis increased the expression of β-catenin to promote the metastasis and resistance to gemcitabine of ICC via CAMKII/GSK3β signaling, and the CAMKII inhibitor KN93 may be an effective therapeutic strategy for combating ICC metastasis.
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Affiliation(s)
- Yan Fu
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, 210009, Nanjing, China
| | - Keyu Shen
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Hao Wang
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Shun Wang
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Xufeng Wang
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Le Zhu
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Yan Zheng
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Tiantian Zou
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Hongfei Ci
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China
| | - Qiongzhu Dong
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China.
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer, Shanghai Municipal Health Commission, Minhang Hospital, Fudan University, Shanghai, China.
| | - Lun-Xiu Qin
- Hepatobiliary Surgery, Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute, Fudan University, 200040, Shanghai, China.
- Institutes of Biomedical Sciences, Fudan University, 200032, Shanghai, China.
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5
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Nguyen-Thi PT, Vo TK, Pham THT, Nguyen TT, Van Vo G. Natural flavonoids as potential therapeutics in the management of Alzheimer's disease: a review. 3 Biotech 2024; 14:68. [PMID: 38357675 PMCID: PMC10861420 DOI: 10.1007/s13205-024-03925-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/05/2024] [Indexed: 02/16/2024] Open
Abstract
Alzheimer's disease (AD) is an age-dependent neurodegenerative disorder which is associated with the accumulation of proteotoxic Aβ peptides, and pathologically characterized by the deposition of Aβ-enriched plaques and neurofibrillary tangles. Given the social and economic burden caused by the rising frequency of AD, there is an urgent need for the development of appropriate therapeutics. Natural compounds are gaining popularity as alternatives to synthetic drugs due to their neuroprotective properties and higher biocompatibility. While natural compound's therapeutic effects for AD have been recently investigated in numerous in vitro and in vivo studies, only few have developed to clinical trials. The present review aims to provide a brief overview of the therapeutic effects, new insights, and upcoming perspectives of the preclinical and clinical trials of flavonoids for the treatment of Alzheimer's disease.
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Affiliation(s)
| | - Tuong Kha Vo
- Department of Sports Medicine, Faculty of Medicine, VNU University of Medicine and Pharmacy, Vietnam National University, Hanoi, 100000 Vietnam
| | - Thi Hong Trang Pham
- Institute for Global Health Innovations, Duy Tan University, Da Nang, 550000 Vietnam
- Faculty of Pharmacy, Duy Tan University, Da Nang, 550000 Vietnam
| | - Thuy Trang Nguyen
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, 71420 Vietnam
| | - Giau Van Vo
- Department of Biomedical Engineering, School of Medicine, Vietnam National University – Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, 700000 Vietnam
- Research Center for Genetics and Reproductive Health (CGRH), School of Medicine, Vietnam National University, Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, 70000 Vietnam
- Vietnam National University – Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, 700000 Vietnam
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6
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Lin Y, Wang J, Liu X, Hu Y, Zhang Y, Jiang F. Synthesis, biological activity evaluation and mechanism analysis of new ganglioside GM3 derivatives as potential agents for nervous functional recovery. Eur J Med Chem 2024; 266:116108. [PMID: 38218125 DOI: 10.1016/j.ejmech.2023.116108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 01/15/2024]
Abstract
Neuronal regenerative ability is vital for the treatment of neurodegenerative diseases and neuronal injuries. Recent studies have revealed that Ganglioside GM3 and its derivatives may possess potential neuroprotective and neurite growth-promoting activities. Herein, six GM3 derivatives were synthesized and evaluated their potential neuroprotective effects and neurite outgrowth-promoting activities on a cellular model of Parkinson's disease and primary nerve cells. Amongst these derivatives, derivatives N-14 and 2C-12 demonstrated neuroprotective effects in the MPP + model in SH-SY5Y cells. 2C-12 combined with NGF (nerve growth factor) induced effecially neurite growth in primary nerve cells. Further action mechanism revealed that derivative 2C-12 exerts neuroprotective effects by regulating the Wnt signaling pathway, specifically involving the Wnt7b gene. Overall, this study establishes a foundation for further exploration and development of GM3 derivatives with neurotherapeutic potential.
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Affiliation(s)
- Yingjun Lin
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Juntao Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Xiangwen Liu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yangfan Hu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yong Zhang
- School of Science and Biotechnology, Shanghai Jiao Tong University, No. 800 Dongchuan Rd., Minhang District, Shanghai, 200240, China
| | - Faqin Jiang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
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Kiuchi M, Uno T, Hasegawa T, Koyama K, Horiuchi M. Influence of short-term hypoxic exposure on spatial learning and memory function and brain-derived neurotrophic factor in rats-A practical implication to human's lost way. Front Behav Neurosci 2024; 18:1330596. [PMID: 38380151 PMCID: PMC10876868 DOI: 10.3389/fnbeh.2024.1330596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/22/2024] [Indexed: 02/22/2024] Open
Abstract
The present study aimed to investigate the effects of a short period of normobaric hypoxic exposure on spatial learning and memory, and brain-derived neurotrophic factor (BDNF) levels in the rat hippocampus. Hypoxic conditions were set at 12.5% O2. We compared all variables between normoxic trials (Norm), after 24 h (Hypo-24 h), and after 72 h of hypoxic exposure (Hypo-72 h). Spatial learning and memory were evaluated by using a water-finding task in an open field. Time to find water drinking fountains was significantly extended in Hypo 24 h (36.2 ± 21.9 s) compared to those in Norm (17.9 ± 12.8 s; P < 0.05), whereas no statistical differences between Norm and Hypo-72 h (22.7 ± 12.3 s). Moreover, hippocampal BDNF level in Hypo-24 h was significantly lower compared to Norm (189.4 ± 28.4 vs. 224.9 ± 47.7 ng/g wet tissue, P < 0.05), whereas no statistically differences in those between Norm and Hypo-72 h (228.1 ± 39.8 ng/g wet tissue). No significant differences in the changes in corticosterone and adrenocorticotropic hormone levels were observed across the three conditions. When data from Hypo-24 h and Hypo-72 h of hypoxia were pooled, there was a marginal negative relationship between the time to find drinking fountains and BDNF (P < 0.1), and was a significant negative relationship between the locomotor activities and BDNF (P < 0.05). These results suggest that acute hypoxic exposure (24 h) may impair spatial learning and memory; however, it recovered after 72 h of hypoxic exposure. These changes in spatial learning and memory may be associated with changes in the hippocampal BDNF levels in rats.
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Affiliation(s)
- Masataka Kiuchi
- Graduate School Department of Interdisciplinary Research, University of Yamanashi, Kofu, Yamanashi, Japan
| | - Tadashi Uno
- Division of Human Environmental Science, Mount Fuji Research Institute, Fujiyoshida, Yamanashi, Japan
| | - Tatsuya Hasegawa
- Division of Human Environmental Science, Mount Fuji Research Institute, Fujiyoshida, Yamanashi, Japan
| | - Katsuhiro Koyama
- Faculty of Sport Science, Yamanashi Gakuin University, Kofu, Yamanashi, Japan
| | - Masahiro Horiuchi
- Division of Human Environmental Science, Mount Fuji Research Institute, Fujiyoshida, Yamanashi, Japan
- Faculty of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima, Japan
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8
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Zhang M, Liu Q, Meng H, Duan H, Liu X, Wu J, Gao F, Wang S, Tan R, Yuan J. Ischemia-reperfusion injury: molecular mechanisms and therapeutic targets. Signal Transduct Target Ther 2024; 9:12. [PMID: 38185705 PMCID: PMC10772178 DOI: 10.1038/s41392-023-01688-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 08/29/2023] [Accepted: 10/18/2023] [Indexed: 01/09/2024] Open
Abstract
Ischemia-reperfusion (I/R) injury paradoxically occurs during reperfusion following ischemia, exacerbating the initial tissue damage. The limited understanding of the intricate mechanisms underlying I/R injury hinders the development of effective therapeutic interventions. The Wnt signaling pathway exhibits extensive crosstalk with various other pathways, forming a network system of signaling pathways involved in I/R injury. This review article elucidates the underlying mechanisms involved in Wnt signaling, as well as the complex interplay between Wnt and other pathways, including Notch, phosphatidylinositol 3-kinase/protein kinase B, transforming growth factor-β, nuclear factor kappa, bone morphogenetic protein, N-methyl-D-aspartic acid receptor-Ca2+-Activin A, Hippo-Yes-associated protein, toll-like receptor 4/toll-interleukine-1 receptor domain-containing adapter-inducing interferon-β, and hepatocyte growth factor/mesenchymal-epithelial transition factor. In particular, we delve into their respective contributions to key pathological processes, including apoptosis, the inflammatory response, oxidative stress, extracellular matrix remodeling, angiogenesis, cell hypertrophy, fibrosis, ferroptosis, neurogenesis, and blood-brain barrier damage during I/R injury. Our comprehensive analysis of the mechanisms involved in Wnt signaling during I/R reveals that activation of the canonical Wnt pathway promotes organ recovery, while activation of the non-canonical Wnt pathways exacerbates injury. Moreover, we explore novel therapeutic approaches based on these mechanistic findings, incorporating evidence from animal experiments, current standards, and clinical trials. The objective of this review is to provide deeper insights into the roles of Wnt and its crosstalk signaling pathways in I/R-mediated processes and organ dysfunction, to facilitate the development of innovative therapeutic agents for I/R injury.
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Affiliation(s)
- Meng Zhang
- The Collaborative Innovation Center, Jining Medical University, Jining, Shandong, 272067, China
| | - Qian Liu
- Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Hui Meng
- Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Hongxia Duan
- Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Xin Liu
- Second Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Jian Wu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Fei Gao
- The Collaborative Innovation Center, Jining Medical University, Jining, Shandong, 272067, China
- Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Shijun Wang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Rubin Tan
- Department of Physiology, Basic medical school, Xuzhou Medical University, Xuzhou, 221004, China.
| | - Jinxiang Yuan
- The Collaborative Innovation Center, Jining Medical University, Jining, Shandong, 272067, China.
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Misawa-Omori E, Okihara H, Ogawa T, Abe Y, Kato C, Ishidori H, Fujita A, Kokai S, Ono T. Reduced mastication during growth inhibits cognitive function by affecting trigeminal ganglia and modulating Wnt signaling pathway and ARHGAP33 molecular transmission. Neuropeptides 2023; 102:102370. [PMID: 37634443 DOI: 10.1016/j.npep.2023.102370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 08/29/2023]
Abstract
Binding of brain-derived neurotrophic factor (BDNF) to its receptor tyrosine kinase B (TrkB) is essential for the development of the hippocampus, which regulates memory and learning. Decreased masticatory stimulation during growth reportedly increases BDNF expression while decreasing TrkB expression in the hippocampus. Increased BDNF expression is associated with Wnt family member 3A (Wnt3a) expression and decreased expression of Rho GTPase Activating Protein 33 (ARHGAP33), which regulates intracellular transport of TrkB. TrkB expression may be decreased at the cell surface and affects the hippocampus via BDNF/TrkB signaling. Mastication affects cerebral blood flow and the neural cascade that occurs through the trigeminal nerve and hippocampus. In the current study, we hypothesized that decreased masticatory stimulation reduces memory/learning in mice due to altered Wnt3a and ARHGAP33 expression, which are related to memory/learning functions in the hippocampus. To test this hypothesis, we fed mice a powdered diet until 14 weeks of age and analyzed the BDNF and TrkB mRNA expression in the right hippocampus using real-time polymerase chain reaction and Wnt3a and ARHGAP33 levels in the left hippocampus using western blotting. Furthermore, we used staining to assess BDNF and TrkB expression in the hippocampus and the number of nerve cells, the average size of each single cell and the area of intercellular spaces of the trigeminal ganglion (TG). We found that decreased masticatory stimulation affected the expression of BDNF, Wnt3a, ARHGAP33, and TrkB proteins in the hippocampus, as well as memory/learning. The experimental group showed significantly decreased numbers of neurons and increased the area of intercellular spaces in the TG. Our findings suggest that reduced masticatory stimulation during growth induces a decline in memory/learning by modulating molecular transmission mechanisms in the hippocampus and TG.
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Affiliation(s)
- Eri Misawa-Omori
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Hidemasa Okihara
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan.
| | - Takuya Ogawa
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Yasunori Abe
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Chiho Kato
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Hideyuki Ishidori
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Akiyo Fujita
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Satoshi Kokai
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Takashi Ono
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
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10
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Mikaeili H, Habib AM, Yeung CWL, Santana-Varela S, Luiz AP, Panteleeva K, Zuberi S, Athanasiou-Fragkouli A, Houlden H, Wood JN, Okorokov AL, Cox JJ. Molecular basis of FAAH-OUT-associated human pain insensitivity. Brain 2023; 146:3851-3865. [PMID: 37222214 PMCID: PMC10473560 DOI: 10.1093/brain/awad098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/03/2023] [Accepted: 03/10/2023] [Indexed: 05/25/2023] Open
Abstract
Chronic pain affects millions of people worldwide and new treatments are needed urgently. One way to identify novel analgesic strategies is to understand the biological dysfunctions that lead to human inherited pain insensitivity disorders. Here we report how the recently discovered brain and dorsal root ganglia-expressed FAAH-OUT long non-coding RNA (lncRNA) gene, which was found from studying a pain-insensitive patient with reduced anxiety and fast wound healing, regulates the adjacent key endocannabinoid system gene FAAH, which encodes the anandamide-degrading fatty acid amide hydrolase enzyme. We demonstrate that the disruption in FAAH-OUT lncRNA transcription leads to DNMT1-dependent DNA methylation within the FAAH promoter. In addition, FAAH-OUT contains a conserved regulatory element, FAAH-AMP, that acts as an enhancer for FAAH expression. Furthermore, using transcriptomic analyses in patient-derived cells we have uncovered a network of genes that are dysregulated from disruption of the FAAH-FAAH-OUT axis, thus providing a coherent mechanistic basis to understand the human phenotype observed. Given that FAAH is a potential target for the treatment of pain, anxiety, depression and other neurological disorders, this new understanding of the regulatory role of the FAAH-OUT gene provides a platform for the development of future gene and small molecule therapies.
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Affiliation(s)
- Hajar Mikaeili
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | - Abdella M Habib
- College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Charlix Wai-Lok Yeung
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | - Sonia Santana-Varela
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | - Ana P Luiz
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | - Kseniia Panteleeva
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | - Sana Zuberi
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | | | - Henry Houlden
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London WC1N 3BG, UK
| | - John N Wood
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | - Andrei L Okorokov
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
| | - James J Cox
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, UK
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11
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Abd-Elmawla MA, Essam RM, Ahmed KA, Abdelmonem M. Implication of Wnt/GSK-3β/β-Catenin Signaling in the Pathogenesis of Mood Disturbances Associated with Hyperthyroidism in Rats: Potential Therapeutic Effect of Naringin. ACS Chem Neurosci 2023. [PMID: 37196197 DOI: 10.1021/acschemneuro.3c00013] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023] Open
Abstract
Patients with hyperthyroidism are commonly diagnosed with mood disorders. Naringin, (4',5,7-trihydrocyflavanone-7-O-rhamnoglucoside), a natural bioflavonoid, has many neurobehavioral activities including anxiolytic and antidepressant properties. The role of Wingless (Wnt) signaling in psychiatric disorders is considered substantial but debatable. Recently, regulation of Wnt signaling by naringin has been reported in different disorders. Therefore, the present study aimed to investigate the possible role of Wnt/GSK-3β/β-catenin signaling in hyperthyroidism-induced mood disturbances and explore the therapeutic effects of naringin. Hyperthyroidism was induced in rats by intraperitoneal injection of 0.3 mg/kg levothyroxine for 2 weeks. Naringin was orally administered to rats with hyperthyroidism at a dose of 50 or 100 mg/kg for 2 weeks. Hyperthyroidism induced mood alterations as revealed by behavioral tests and histopathological changes including marked necrosis and vacuolation of neurons in the hippocampus and cerebellum. Intriguingly, hyperthyroidism activated Wnt/p-GSK-3β/β-catenin/DICER1/miR-124 signaling pathway in the hippocampus along with an elevation in serotonin, dopamine, and noradrenaline contents and a reduction in brain-derived neurotrophic factor (BDNF) content. Additionally, hyperthyroidism induced upregulation of cyclin D-1 expression, malondialdehyde (MDA) elevation, and glutathione (GSH) reduction. Naringin treatment alleviated behavioral and histopathological alterations and reversed hyperthyroidism-induced biochemical changes. In conclusion, this study revealed, for the first time, that hyperthyroidism could affect mental status by stimulating Wnt/p-GSK-3β/β-catenin signaling in the hippocampus. The observed beneficial effects of naringin could be attributed to increasing hippocampal BDNF, controlling the expression of Wnt/p-GSK-3β/β-catenin signaling as well as its antioxidant properties.
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Affiliation(s)
- Mai A Abd-Elmawla
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
| | - Reham M Essam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
- Department of Biology, School of Pharmacy, Newgiza University, First 6th of October, Giza 3296121, Egypt
| | - Kawkab A Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Cairo, Egypt
| | - Maha Abdelmonem
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
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12
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Zheng Q, Han Y, Fan M, Gao X, Ma M, Xu J, Liu S, Ge J. Potential role of TREM2 in high cholesterol‑induced cell injury and metabolic dysfunction in SH‑SY5Y cells. Exp Ther Med 2023; 25:205. [PMID: 37090086 PMCID: PMC10119670 DOI: 10.3892/etm.2023.11904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/01/2023] [Indexed: 04/25/2023] Open
Abstract
Triggering receptor expressed on myeloid cells 2 (TREM2) is an important member of the immunoglobulin family of inflammatory stimulating receptors and is involved in a number of pathophysiological processes. The present study aimed to investigate the role of TREM2 in neurotoxicity induced by high cholesterol levels in SH-SY5Y cells and explore the potential mechanism. SH-SY5Y cells were routinely cultured and stimulated with a range of cholesterol concentrations. Cell viability was assessed using an MTT assay, morphological changes were observed, and the cell cycle distribution was measured using flow cytometry. Lipid deposition was measured by Oil red O staining, and the mRNA and protein expression levels of SRBEP-1 and SRBEP-2 were detected by quantitative PCR and western blotting, respectively. Moreover, the protein expression levels of BDNF, Copine-6, TREM1, TREM2, and key molecules of the Wnt signaling pathways were detected by western blotting. Finally, TREM2 was overexpressed to investigate its potential role in high cholesterol-induced neurotoxicity. The results showed that cell viability was significantly decreased in SH-SY5Y cells stimulated with cholesterol (0.1~100 µM) in a dose- and time-dependent manner. Stimulation with 100 µM cholesterol for 24 h resulted in morphological injuries, increased the proportion of SH-SY5Y cells at G0/G1, the degree of lipid accumulation, and the protein expression levels of sterol regulatory element binding protein (SREBP)1 and SREBP2, markedly decreased the protein expression levels of BDNF, Copine-6, and TREM2, and the p-β-catenin/β-catenin ratio, and increased the expression levels of nesfatin-1, TREM1 and the p-GSK3β/GSK3β ratio. Furthermore, the imbalanced expression of BDNF, Copine-6, nesfatin-1, and p-GSK3β induced by high cholesterol levels was reversed after overexpression of TREM2. These results suggest that a high concentration of cholesterol could induce cell injury and lipid deposition in SH-SY5Y cells and that the underlying mechanism may be associated with imbalanced TREM2 expression.
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Affiliation(s)
- Qiang Zheng
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yinxiu Han
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Min Fan
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Xinran Gao
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Mengdie Ma
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Jingxian Xu
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Sen Liu
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Jinfang Ge
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, Anhui 230032, P.R. China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, Anhui 230032, P.R. China
- Correspondence to: Dr Jinfang Ge, School of Pharmacy, Anhui Medical University, 81 Mei-Shan Road, Hefei, Anhui 230032, P.R. China
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13
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Lambré C, Barat Baviera JM, Bolognesi C, Chesson A, Cocconcelli PS, Crebelli R, Gott DM, Grob K, Lampi E, Mengelers M, Mortensen A, Rivière G, Silano (until 21 December 2020†) V, Steffensen I, Tlustos C, Vernis L, Zorn H, Batke M, Bignami M, Corsini E, FitzGerald R, Gundert‐Remy U, Halldorsson T, Hart A, Ntzani E, Scanziani E, Schroeder H, Ulbrich B, Waalkens‐Berendsen D, Woelfle D, Al Harraq Z, Baert K, Carfì M, Castoldi AF, Croera C, Van Loveren H. Re-evaluation of the risks to public health related to the presence of bisphenol A (BPA) in foodstuffs. EFSA J 2023; 21:e06857. [PMID: 37089179 PMCID: PMC10113887 DOI: 10.2903/j.efsa.2023.6857] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
In 2015, EFSA established a temporary tolerable daily intake (t-TDI) for BPA of 4 μg/kg body weight (bw) per day. In 2016, the European Commission mandated EFSA to re-evaluate the risks to public health from the presence of BPA in foodstuffs and to establish a tolerable daily intake (TDI). For this re-evaluation, a pre-established protocol was used that had undergone public consultation. The CEP Panel concluded that it is Unlikely to Very Unlikely that BPA presents a genotoxic hazard through a direct mechanism. Taking into consideration the evidence from animal data and support from human observational studies, the immune system was identified as most sensitive to BPA exposure. An effect on Th17 cells in mice was identified as the critical effect; these cells are pivotal in cellular immune mechanisms and involved in the development of inflammatory conditions, including autoimmunity and lung inflammation. A reference point (RP) of 8.2 ng/kg bw per day, expressed as human equivalent dose, was identified for the critical effect. Uncertainty analysis assessed a probability of 57-73% that the lowest estimated Benchmark Dose (BMD) for other health effects was below the RP based on Th17 cells. In view of this, the CEP Panel judged that an additional uncertainty factor (UF) of 2 was needed for establishing the TDI. Applying an overall UF of 50 to the RP, a TDI of 0.2 ng BPA/kg bw per day was established. Comparison of this TDI with the dietary exposure estimates from the 2015 EFSA opinion showed that both the mean and the 95th percentile dietary exposures in all age groups exceeded the TDI by two to three orders of magnitude. Even considering the uncertainty in the exposure assessment, the exceedance being so large, the CEP Panel concluded that there is a health concern from dietary BPA exposure.
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14
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Bonansco C, Cerpa W, Inestrosa NC. How Are Synapses Born? A Functional and Molecular View of the Role of the Wnt Signaling Pathway. Int J Mol Sci 2022; 24:ijms24010708. [PMID: 36614149 PMCID: PMC9821221 DOI: 10.3390/ijms24010708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 01/03/2023] Open
Abstract
Synaptic transmission is a dynamic process that requires precise regulation. Early in life, we must be able to forge appropriate connections (add and remove) to control our behavior. Neurons must recognize appropriate targets, and external soluble factors that activate specific signaling cascades provide the regulation needed to achieve this goal. Wnt signaling has been implicated in several forms of synaptic plasticity, including functional and structural changes associated with brain development. The analysis of synapses from an electrophysiological perspective allows us to characterize the functional role of cellular signaling pathways involved in brain development. The application of quantal theory to principles of developmental plasticity offers the possibility of dissecting the function of structural changes associated with the birth of new synapses as well as the maturation of immature silent synapses. Here, we focus on electrophysiological and molecular evidence that the Wnt signaling pathway regulates glutamatergic synaptic transmission, specifically N-methyl-d-aspartate receptors (NMDARs), to control the birth of new synapses. We also focus on the role of Wnts in the conversion of silent synapses into functional synapses.
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Affiliation(s)
- Christian Bonansco
- Centro de Neurobiología y Fisiopatología Integrativa (CENFI), Instituto de Fisiología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
- Correspondence: (C.B.); (N.C.I.)
| | - Waldo Cerpa
- Laboratorio de Función y Patología Neuronal, Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
- Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas 6200000, Chile
| | - Nibaldo C. Inestrosa
- Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas 6200000, Chile
- Centro de Envejecimiento y Regeneración (CARE UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
- Correspondence: (C.B.); (N.C.I.)
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15
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Sun W, Lu Z, Chen X, Yang, Mei Y, Li X, An L. Aluminum Oxide Nanoparticles Impair Working Memory and Neuronal Activity through the GSK3β/BDNF Signaling Pathway of Prefrontal Cortex in Rats. ACS Chem Neurosci 2022; 13:3352-3361. [PMID: 36444509 DOI: 10.1021/acschemneuro.2c00383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Studies demonstrated that alumina nanoparticles (alumina NPs) impair spatial cognition and hippocampus-dependent synaptic plasticity. Although alumina NPs accumulate in the prefrontal cortex (PFC), their effects on PFC-mediated neuronal and cognitive function have been not yet documented. Here, alumina NPs (10 or 20 μg/kg of body weight) were bilaterally injected into the medial PFC (mPFC) of adult rats, and the levels of glycogen synthase kinase 3β (GSK3β) and the brain-derived neurotrophic factor (BDNF) were detected. The PFC-dependent working memory task with one-minute or three-minute delay time was conducted. Meanwhile, the neuronal correlates of working memory performance were recorded. The specific expression of neuronal BDNF was assessed by colabeled BDNF expression with the neuronal nuclear antigen (NeuN). Whole-cell patch-clamp recordings were employed to detect neuronal excitability. Intra-mPFC alumina NP infusions significantly enhanced the expression of GSK3β but reduced the phosphorylation of GSK3β (pGSK3β) and BDNF levels more severely at a dose of 20 μg/kg. Alumina NPs acted in a dose-dependent manner to impair working memory. The neuronal expression of BDNF in the 20 μg/kg group was markedly declined compared with the 10 μg/kg group. During the delay time, the neuronal frequency of pyramidal cells but not interneurons was significantly weakened. Furthermore, both the frequency and amplitude of the excitatory postsynaptic currents (EPSCs) were descended in the mPFC slices. Additionally, the infusion of GSK3β inhibitor SB216763 or BDNF could effectively attenuate the impairments in neuronal correlate, neuronal activity, and working memory. From the perspective of the identified GSK3β/BDNF pathway, these findings demonstrated for the first time that alumina NPs exposure can be a risk factor for prefrontal neuronal and cognitive functions.
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Affiliation(s)
- Wei Sun
- Department of Pediatric, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China.,Behavioural Neuroscience Lab, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China
| | - Zhenzhong Lu
- Behavioural Neuroscience Lab, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China.,Department of Neurology, Jinan Geriatric/Rehabilitation Hospital, Jinan 250013, China
| | - Xiao Chen
- Behavioural Neuroscience Lab, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China.,Graduate School of Guangzhou University of Chinese Medicine, Guangzhou 510006, China.,Department of Neurology, Jinan Geriatric/Rehabilitation Hospital, Jinan 250013, China
| | - Yang
- Department of Pediatric, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China
| | - Yazi Mei
- Graduate School of Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaoliang Li
- Department of Neurology, Jinan Geriatric/Rehabilitation Hospital, Jinan 250013, China
| | - Lei An
- Department of Pediatric, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China.,Behavioural Neuroscience Lab, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China.,Graduate School of Guangzhou University of Chinese Medicine, Guangzhou 510006, China.,Department of Neurology, The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, China
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16
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Abu-Elfotuh K, Abdel-Sattar SA, Abbas AN, Mahran YF, Alshanwani AR, Hamdan AME, Atwa AM, Reda E, Ahmed YM, Zaghlool SS, El-Din MN. The protective effect of thymoquinone or/and thymol against monosodium glutamate-induced attention-deficit/hyperactivity disorder (ADHD)-like behavior in rats: Modulation of Nrf2/HO-1, TLR4/NF-κB/NLRP3/caspase-1 and Wnt/β-Catenin signaling pathways in rat model. Biomed Pharmacother 2022; 155:113799. [PMID: 36271575 DOI: 10.1016/j.biopha.2022.113799] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/28/2022] [Accepted: 10/02/2022] [Indexed: 11/26/2022] Open
Abstract
Both thymoquinone (TQ) and thymol (T) have been proved to possess a positive impact on human health. In this research, we aimed to investigate the effect of these compounds separately and together on the Attention-deficit/hyperactivity disorder (ADHD)-like behavior induced by monosodium glutamate (MSG) in rats. Forty male, Spargue Dawley rat pups (postnatal day 21), were randomly allocated into five groups: Normal saline (NS), MSG, MSG+TQ, MSG+T, and MSG+TQ+T. MSG (0.4 mg/kg/day), TQ (10 mg/kg/day) and T (30 mg/kg/day) were orally administered for 8 weeks. The behavioral tests proved that rats treated with TQ and/or T showed improved locomotor, attention and cognitive functions compared to the MSG group with more pronounced effect displayed with their combination. All treated groups showed improvement in MSG-induced aberrations in brain levels of GSH, IL-1β, TNF-α, GFAP, glutamate, calcium, dopamine, norepinephrine, Wnt3a, β-Catenin and BDNF. TQ and/or T treatment also enhanced the mRNA expression of Nrf2, HO-1 and Bcl2 while reducing the protein expression of TLR4, NFκB, NLRP3, caspase 1, Bax, AIF and GSK3β as compared to the MSG group. However, the combined therapy showed more significant effects in all measured parameters. All of these findings were further confirmed by the histopathological examinations. Current results concluded that the combined therapy of TQ and T had higher protective effects than their individual supplementations against MSG-induced ADHD-like behavior in rats.
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17
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Schizophrenia-derived hiPSC brain microvascular endothelial-like cells show impairments in angiogenesis and blood-brain barrier function. Mol Psychiatry 2022; 27:3708-3718. [PMID: 35705634 DOI: 10.1038/s41380-022-01653-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/17/2022] [Accepted: 05/31/2022] [Indexed: 02/08/2023]
Abstract
Schizophrenia (SZ) is a complex neuropsychiatric disorder, affecting 1% of the world population. Long-standing clinical observations and molecular data have pointed to a possible vascular deficiency that could be acting synergistically with neuronal dysfunction in SZ. As SZ is a neurodevelopmental disease, the use of human-induced pluripotent stem cells (hiPSC) allows disease biology modeling while retaining the patient's unique genetic signature. Previously, we reported a VEGFA signaling impairment in SZ-hiPSC-derived neural lineages leading to decreased angiogenesis. Here, we present a functional characterization of SZ-derived brain microvascular endothelial-like cells (BEC), the counterpart of the neurovascular crosstalk, revealing an intrinsically defective blood-brain barrier (BBB) phenotype. Transcriptomic assessment of genes related to endothelial function among three control (Ctrl BEC) and five schizophrenia patients derived BEC (SZP BEC), revealed that SZP BEC have a distinctive expression pattern of angiogenic and BBB-associated genes. Functionally, SZP BEC showed a decreased angiogenic response in vitro and higher transpermeability than Ctrl BEC. Immunofluorescence staining revealed less expression and altered distribution of tight junction proteins in SZP BEC. Moreover, SZP BEC's conditioned media reduced barrier capacities in the brain microvascular endothelial cell line HCMEC/D3 and in an in vivo permeability assay in mice. Overall, our results describe an intrinsic failure of SZP BEC for proper barrier function. These findings are consistent with the hypothesis tracing schizophrenia origins to brain development and BBB dysfunction.
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18
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Wei YD, Chen XX, Yang LJ, Gao XR, Xia QR, Qi CC, Ge JF. Resveratrol ameliorates learning and memory impairments induced by bilateral hippocampal injection of streptozotocin in mice. Neurochem Int 2022; 159:105385. [PMID: 35843421 DOI: 10.1016/j.neuint.2022.105385] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 06/15/2022] [Accepted: 06/27/2022] [Indexed: 01/10/2023]
Abstract
Resveratrol (RES) is a polyphenol with diverse beneficial pharmacological activities, and our previous results have demonstrated its neuroprotective potential. The purpose of this study was to investigate the therapeutic effect of RES in Alzheimer's disease (AD)-like behavioral dysfunction induced by streptozotocin (STZ) and explore it's potential mechanism of action. STZ was microinjected bilaterally into the dorsal hippocampus of C57BL/6J mice at a dose of 3 mg/kg, and RES was administered intragastrically at a dose of 25 mg/kg for 5 weeks. Neurobehavioral performance was observed, and serum concentrations of insulin and Nesfatin-1 were measured. Moreover, the protein expression of amyloid beta 1-42 (Aβ1-42), Tau, phosphorylated Tau (p-Tau) (Ser396), synaptic ras GTPase activation protein (SynGAP), postsynaptic density protein 95 (PSD95), synapsin-1, synaptogomin-1, and key molecules of the Wnt/β-catenin signaling pathway in the hippocampus and prefrontal cortex (PFC) were assessed. Finally, pathological damage to hippocampal tissue was examined by Nissl and immunofluorescence staining. The results showed that compared with the controls, bilateral hippocampal microinjections of STZ induced task-specific learning and memory impairments, as indicated by the disadvantaged performances in the novel object recognition test (NOR) and Morris water maze (MWM), but not the contextual fear conditioning test (CFC). Treatment with RES could improve these behavioral disadvantages. The serum concentrations of insulin and Nesfatin-1 in the model group were remarkably higher than those of the control group. In addition, protein expression of Aβ1-42, Tau, and p-Tau (Ser396) was increased but expression of SynGAP, PSD95, brain-derived neurotrophic factor (BDNF), and p-GSK-3β/GSK-3β were decreased in the hippocampus. Although the protein expression of BDNF and SynGAP was also markedly decreased in the PFC of the model mice, there was no significant difference among groups in the protein expression of PSD95, BDNF, synapsin-1, synaptogomin-1, and p-GSK-3β/GSK-3β. RES (25 mg/kg) reversed the enhanced insulin level, the abnormal protein expression of Aβ1-42, Tau, and p-Tau (Ser396) in the hippocampus and PFC, and the hippocampal protein expression of SynGAP, PSD95 and BDNF. In addition, RES reversed the STZ-induced decrease in the number of Nissl bodies and the increase in fluorescence intensity of IBA1 in the hippocampal CA1 region. These findings indicate that RES could ameliorate STZ-induced AD-like neuropathological injuries, the mechanism of which could be partly related to its regulation of BDNF expression and synaptic plasticity-associated proteins in the hippocampus.
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Affiliation(s)
- Ya-Dong Wei
- School of Pharmacy, Anhui Medical University, Hefei, China; Anhui Provincial Laboratory of Inflammatory and Immunity Disease, Anhui Institute of Innovative Drugs, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, China
| | - Xing-Xing Chen
- School of Pharmacy, Anhui Medical University, Hefei, China; Anhui Provincial Laboratory of Inflammatory and Immunity Disease, Anhui Institute of Innovative Drugs, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, China
| | - Long-Jun Yang
- Chaohu Clinical Medical College, Anhui Medical University, Hefei, China
| | - Xin-Ran Gao
- School of Pharmacy, Anhui Medical University, Hefei, China; Anhui Provincial Laboratory of Inflammatory and Immunity Disease, Anhui Institute of Innovative Drugs, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, China
| | - Qing-Rong Xia
- Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, China; Psychopharmacology Research Laboratory, Anhui Mental Health Center, Hefei, China; Clinical Pharmacy, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
| | - Cong-Cong Qi
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Brain Science, And Department of Laboratory Animal Science, Fudan University, Shanghai, China.
| | - Jin-Fang Ge
- School of Pharmacy, Anhui Medical University, Hefei, China; Anhui Provincial Laboratory of Inflammatory and Immunity Disease, Anhui Institute of Innovative Drugs, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, China.
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19
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Zhang JH, Tasaki T, Tsukamoto M, Wang KY, Kubo KY, Azuma K. Deletion of Wnt10a Is Implicated in Hippocampal Neurodegeneration in Mice. Biomedicines 2022; 10:biomedicines10071500. [PMID: 35884806 PMCID: PMC9313158 DOI: 10.3390/biomedicines10071500] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/16/2022] Open
Abstract
The hippocampus plays an important role in maintaining normal cognitive function and is closely associated with the neuropathogenesis of dementia. Wnt signaling is relevant to neuronal development and maturation, synaptic formation, and plasticity. The role of Wnt10a in hippocampus-associated cognition, however, is largely unclear. Here, we examined the morphological and functional alterations in the hippocampus of Wnt10a-knockout (Wnt10a-/-) mice. Neurobehavioral tests revealed that Wnt10a-/- mice exhibited spatial memory impairment and anxiety-like behavior. Immunostaining and Western blot findings showed that the protein expressions of β-catenin, brain-derived neurotrophic factor, and doublecortin were significantly decreased and that the number of activated microglia increased, accompanied by amyloid-β accumulation, synaptic dysfunction, and microglia-associated neuroinflammation in the hippocampi of Wnt10a-/- mice. Our findings revealed that the deletion of Wnt10a decreased neurogenesis, impaired synaptic function, and induced hippocampal neuroinflammation, eventually leading to hippocampal neurodegeneration and memory deficit, possibly through the β-catenin signaling pathway, providing a novel insight into preventive approaches for hippocampus-dependent cognitive impairment.
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Affiliation(s)
- Jia-He Zhang
- Department of Anatomy, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyusyu 807-8555, Fukuoka, Japan;
| | - Takashi Tasaki
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Kanagawa, Japan;
| | - Manabu Tsukamoto
- Department of Orthopedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyusyu 807-8555, Fukuoka, Japan;
| | - Ke-Yong Wang
- Shared-Use Research Center, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyusyu 807-8555, Fukuoka, Japan;
| | - Kin-ya Kubo
- Faculty of Human Life and Environmental Science, Nagoya Women’s University, 3-40 Shioji-cho, Mizuho-ku, Nagoya 467-8610, Aichi, Japan;
| | - Kagaku Azuma
- Department of Anatomy, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyusyu 807-8555, Fukuoka, Japan;
- Correspondence: ; Tel.: +81-93-691-7418; Fax: +81-93-691-8544
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20
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Mehterov N, Minchev D, Gevezova M, Sarafian V, Maes M. Interactions Among Brain-Derived Neurotrophic Factor and Neuroimmune Pathways Are Key Components of the Major Psychiatric Disorders. Mol Neurobiol 2022; 59:4926-4952. [PMID: 35657457 DOI: 10.1007/s12035-022-02889-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/17/2022] [Indexed: 10/25/2022]
Abstract
The purpose of this review is to summarize the current knowledge regarding the reciprocal associations between brain-derived neurotrophic factor (BDNF) and immune-inflammatory pathways and how these links may explain the involvement of this neurotrophin in the immune pathophysiology of mood disorders and schizophrenia. Toward this end, we delineated the protein-protein interaction (PPI) network centered around BDNF and searched PubMed, Scopus, Google Scholar, and Science Direct for papers dealing with the involvement of BDNF in the major psychosis, neurodevelopment, neuronal functions, and immune-inflammatory and related pathways. The PPI network was built based on the significant interactions of BDNF with neurotrophic (NTRK2, NTF4, and NGFR), immune (cytokines, STAT3, TRAF6), and cell-cell junction (CTNNB, CDH1) DEPs (differentially expressed proteins). Enrichment analysis shows that the most significant terms associated with this PPI network are the tyrosine kinase receptor (TRKR) and Src homology region two domain-containing phosphatase-2 (SHP2) pathways, tyrosine kinase receptor signaling pathways, positive regulation of kinase and transferase activity, cytokine signaling, and negative regulation of the immune response. The participation of BDNF in the immune response and its interactions with neuroprotective and cell-cell adhesion DEPs is probably a conserved regulatory process which protects against the many detrimental effects of immune activation and hyperinflammation including neurotoxicity. Lowered BDNF levels in mood disorders and schizophrenia (a) are associated with disruptions in neurotrophic signaling and activated immune-inflammatory pathways leading to neurotoxicity and (b) may interact with the reduced expression of other DEPs (CTNNB1, CDH1, or DISC1) leading to multiple aberrations in synapse and axonal functions.
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Affiliation(s)
- Nikolay Mehterov
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Danail Minchev
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Maria Gevezova
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Victoria Sarafian
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Michael Maes
- Faculty of Medicine, Department of Psychiatry, Chulalongkorn University, Bangkok, 10330, Thailand. .,Department of Psychiatry, Medical University of Plovdiv, Plovdiv, Bulgaria. .,Department of Psychiatry, IMPACT Strategic Research Centre, Deakin University, Geelong, VIC, Australia.
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21
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Jha NK, Chen WC, Kumar S, Dubey R, Tsai LW, Kar R, Jha SK, Gupta PK, Sharma A, Gundamaraju R, Pant K, Mani S, Singh SK, Maccioni RB, Datta T, Singh SK, Gupta G, Prasher P, Dua K, Dey A, Sharma C, Mughal YH, Ruokolainen J, Kesari KK, Ojha S. Molecular mechanisms of developmental pathways in neurological disorders: a pharmacological and therapeutic review. Open Biol 2022; 12:210289. [PMID: 35291879 PMCID: PMC8924757 DOI: 10.1098/rsob.210289] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Developmental signalling pathways such as Wnt/β-catenin, Notch and Sonic hedgehog play a central role in nearly all the stages of neuronal development. The term 'embryonic' might appear to be a misnomer to several people because these pathways are functional during the early stages of embryonic development and adulthood, albeit to a certain degree. Therefore, any aberration in these pathways or their associated components may contribute towards a detrimental outcome in the form of neurological disorders such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and stroke. In the last decade, researchers have extensively studied these pathways to decipher disease-related interactions, which can be used as therapeutic targets to improve outcomes in patients with neurological abnormalities. However, a lot remains to be understood in this domain. Nevertheless, there is strong evidence supporting the fact that embryonic signalling is indeed a crucial mechanism as is manifested by its role in driving memory loss, motor impairments and many other processes after brain trauma. In this review, we explore the key roles of three embryonic pathways in modulating a range of homeostatic processes such as maintaining blood-brain barrier integrity, mitochondrial dynamics and neuroinflammation. In addition, we extensively investigated the effect of these pathways in driving the pathophysiology of a range of disorders such as Alzheimer's, Parkinson's and diabetic neuropathy. The concluding section of the review is dedicated to neurotherapeutics, wherein we identify and list a range of biological molecules and compounds that have shown enormous potential in improving prognosis in patients with these disorders.
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Affiliation(s)
- Niraj Kumar Jha
- Department of Biotechnology, School of Engineering and Technology (SET), Sharda University, Greater Noida, Uttar Pradesh 201310, India
| | - Wei-Chih Chen
- Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Sanjay Kumar
- Department of Life Science, School of Basic Science and Research, Sharda University, Greater Noida, Uttar Pradesh 201310, India
| | - Rajni Dubey
- Department of Medicine Research, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Lung-Wen Tsai
- Department of Medicine Research, Taipei Medical University Hospital, Taipei 11031, Taiwan,Department of Information Technology Office, Taipei Medical University Hospital, Taipei 11031, Taiwan,Graduate Institute of Data Science, College of Management, Taipei Medical University, Taipei 110, Taiwan
| | - Rohan Kar
- Indian Institute of Management Ahmedabad (IIMA), Gujarat 380015, India
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering and Technology (SET), Sharda University, Greater Noida, Uttar Pradesh 201310, India
| | - Piyush Kumar Gupta
- Department of Life Science, School of Basic Science and Research, Sharda University, Greater Noida, Uttar Pradesh 201310, India
| | - Ankur Sharma
- Department of Life Science, School of Basic Science and Research, Sharda University, Greater Noida, Uttar Pradesh 201310, India
| | - Rohit Gundamaraju
- ER Stress and Mucosal Immunology Laboratory, School of Health Sciences, University of Tasmania, Launceston, Tasmania 7248, Australia
| | - Kumud Pant
- Department of Biotechnology, Graphic Era deemed to be University Dehradun Uttarakhand, 248002 Dehradun, India
| | - Shalini Mani
- Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector 62, Noida, Uttar Pradesh 201301, India
| | - Sandeep Kumar Singh
- Indian Scientific Education and Technology Foundation, Lucknow 226002, India
| | - Ricardo B. Maccioni
- Laboratory of Neurosciences and Functional Medicine, International Center for Biomedicine (ICC) and Faculty of Sciences, University of Chile, Santiago de Chile, Chile
| | - Tirtharaj Datta
- Department of Biotechnology, School of Engineering and Technology (SET), Sharda University, Greater Noida, Uttar Pradesh 201310, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Gaurav Gupta
- Department of Pharmacology, School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, 302017 Jagatpura, Jaipur, India
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum and Energy Studies, Dehradun 248007, Uttarakhand, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, India,Department of Applied Physics, School of Science, and
| | - Charu Sharma
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates
| | - Yasir Hayat Mughal
- Department of Health Administration, College of Public Health and Health Informatics, Qassim University, Buraidah, Saudi Arabia
| | | | - Kavindra Kumar Kesari
- Department of Applied Physics, School of Science, and,Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo 00076, Finland
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates
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22
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Zhang H, Han Y, Zhang L, Jia X, Niu Q. The GSK-3β/β-Catenin Signaling-Mediated Brain-Derived Neurotrophic Factor Pathway Is Involved in Aluminum-Induced Impairment of Hippocampal LTP In Vivo. Biol Trace Elem Res 2021; 199:4635-4645. [PMID: 33462795 DOI: 10.1007/s12011-021-02582-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/06/2021] [Indexed: 12/20/2022]
Abstract
The neurotoxic effects of aluminum (Al) are associated with the impairment of synaptic plasticity, the biological basis of learning and memory, the major form of which is long-term potentiation (LTP). The canonical glycogen synthase kinase-3β (GSK-3β)/β-catenin signaling-mediated brain-derived neurotrophic factor (BDNF) pathway has been suggested to play important roles in memory. Thus, Al may affect LTP through this pathway. In this study, a Sprague-Dawley rat model of neurotoxicity was established through intracerebroventricular (i.c.v.) injection of aluminum maltol (Al(mal)3), which was achieved by preimplantation of a cannula into the lateral ventricle. The rats in the control and Al-treated groups received a daily injection of SB216763, an inhibitor of GSK-3β. Electrophysiology and western blot analysis were used to investigate the regulatory effect of the GSK-3β/β-catenin signaling-mediated BDNF pathway on LTP impairment induced by Al(mal)3. The results confirmed that i.c.v. injection of Al(mal)3 significantly suppressed the field excitatory postsynaptic potential (fEPSP) amplitude, as indicated by a decrease in BDNF protein expression, which was accompanied by dose-dependent decreases in β-catenin protein expression and the phosphorylation of GSK-3β at Ser9. Rats that received SB216763, a GSK-3β inhibitor, exhibited higher fEPSP amplitudes than control rats. Furthermore, SB216763 treatment upregulated the hippocampal protein expression of BDNF and β-catenin while increasing the ratio of p-GSK-3β/GSK-3β. From the perspective of the identified β-catenin-BDNF axis, Al impairs hippocampal LTP, possibly through the GSK-3β/β-catenin signaling-mediated BDNF pathway.
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Affiliation(s)
- Huifang Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Yingchao Han
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Ling Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Xiaofang Jia
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China.
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China.
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23
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Ishidori H, Okihara H, Ogawa T, Abe Y, Kato C, Aung PT, Fujita A, Kokai S, Ono T. Nasal obstruction during the growth period modulates the Wnt/β-catenin pathway and brain-derived neurotrophic factor production in association with tyrosine kinase receptor B mRNA reduction in mouse hippocampus. Eur J Neurosci 2021; 55:5-17. [PMID: 34842314 PMCID: PMC9300175 DOI: 10.1111/ejn.15547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/02/2021] [Accepted: 11/19/2021] [Indexed: 11/29/2022]
Abstract
There is accumulating evidence that nasal obstruction induces high‐level brain dysfunction, including memory and learning deficits. We previously demonstrated that unilateral nasal obstruction (UNO) during the growth period increases the expression of brain‐derived neurotrophic factor (BDNF). The expression of BDNF is regulated by the Wnt/β‐Catenin pathway, which is linked to neuronal differentiation, proliferation, and maintenance. However, little is known about whether Wnt3a protein expression could be an index for modulations analyses in the Wnt/β‐Catenin pathway caused by UNO during the growth period. This study aimed to investigate the effects of UNO during the growth period on the Wnt/β‐Catenin pathway in the hippocampus using combined behavioural, biochemical, and histological approaches. Male BALB/C mice were randomly divided into the control (CONT; n = 6) and experimental (UNO; n = 6) groups. Blood oxygen saturation (SpO2) levels were measured, and a passive avoidance test was performed in mice aged 15 weeks. Brain tissues were subjected to immunohistochemistry, real‐time reverse transcription‐polymerase chain reaction, and western blot analysis. Compared with control mice, UNO mice had lower SpO2 levels and exhibited memory/learning impairments during behavioural testing. Moreover, Wnt3a protein, BDNF mRNA, and tyrosine kinase receptor B (TrkB) mRNA expression levels were significantly lower in the hippocampus in the UNO group than in the CONT group. Our findings suggested that UNO during the growth period appeared to modulate the hippocampal Wnt/β‐catenin pathway and BDNF production in association with TrkB mRNA reduction, thereby resulting in memory and learning impairments.
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Affiliation(s)
- Hideyuki Ishidori
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hidemasa Okihara
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takuya Ogawa
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasunori Abe
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Chiho Kato
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Phyo Thura Aung
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akiyo Fujita
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Satoshi Kokai
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takashi Ono
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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24
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Maes M, Plaimas K, Suratanee A, Noto C, Kanchanatawan B. First Episode Psychosis and Schizophrenia Are Systemic Neuro-Immune Disorders Triggered by a Biotic Stimulus in Individuals with Reduced Immune Regulation and Neuroprotection. Cells 2021; 10:cells10112929. [PMID: 34831151 PMCID: PMC8616258 DOI: 10.3390/cells10112929] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/20/2021] [Accepted: 10/24/2021] [Indexed: 12/30/2022] Open
Abstract
There is evidence that schizophrenia is characterized by activation of the immune-inflammatory response (IRS) and compensatory immune-regulatory systems (CIRS) and lowered neuroprotection. Studies performed on antipsychotic-naïve first episode psychosis (AN-FEP) and schizophrenia (FES) patients are important as they may disclose the pathogenesis of FES. However, the protein–protein interaction (PPI) network of FEP/FES is not established. The aim of the current study was to delineate a) the characteristics of the PPI network of AN-FEP and its transition to FES; and b) the biological functions, pathways, and molecular patterns, which are over-represented in FEP/FES. Toward this end, we used PPI network, enrichment, and annotation analyses. FEP and FEP/FES are strongly associated with a response to a bacterium, alterations in Toll-Like Receptor-4 and nuclear factor-κB signaling, and the Janus kinases/signal transducer and activator of the transcription proteins pathway. Specific molecular complexes of the peripheral immune response are associated with microglial activation, neuroinflammation, and gliogenesis. FEP/FES is accompanied by lowered protection against inflammation, in part attributable to dysfunctional miRNA maturation, deficits in neurotrophin and Wnt/catenin signaling, and adherens junction organization. Multiple interactions between reduced brain derived neurotrophic factor, E-cadherin, and β-catenin and disrupted schizophrenia-1 (DISC1) expression increase the vulnerability to the neurotoxic effects of immune molecules, including cytokines and complement factors. In summary: FEP and FES are systemic neuro-immune disorders that are probably triggered by a bacterial stimulus which induces neuro-immune toxicity cascades that are overexpressed in people with reduced anti-inflammatory and miRNA protections, cell–cell junction organization, and neurotrophin and Wnt/catenin signaling.
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Affiliation(s)
- Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
- Department of Psychiatry, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
- IMPACT Strategic Research Center, Deakin University, Geelong 3220, Australia
- Correspondence:
| | - Kitiporn Plaimas
- Advanced Virtual and Intelligent Computing (AVIC) Center, Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Apichat Suratanee
- Department of Mathematics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand;
| | - Cristiano Noto
- GAPi (Early Psychosis Group), Universidade Federal de São Paulo (UNIFESP), São Paulo 04021-001, Brazil;
- Schizophrenia Program (PROESQ), Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP), São Paulo 04021-001, Brazil
| | - Buranee Kanchanatawan
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
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25
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Rubio C, Taddei E, Acosta J, Custodio V, Paz C. Neuronal Excitability in Epileptogenic Zones Regulated by the Wnt/ Β-Catenin Pathway. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2021; 19:2-11. [PMID: 31987027 DOI: 10.2174/1871527319666200120143133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 02/08/2023]
Abstract
Epilepsy is a neurological disorder that involves abnormal and recurrent neuronal discharges, producing epileptic seizures. Recently, it has been proposed that the Wnt signaling pathway is essential for the central nervous system development and function because it modulates important processes such as hippocampal neurogenesis, synaptic clefting, and mitochondrial regulation. Wnt/β- catenin signaling regulates changes induced by epileptic seizures, including neuronal death. Several genetic studies associate Wnt/β-catenin signaling with neuronal excitability and epileptic activity. Mutations and chromosomal defects underlying syndromic or inherited epileptic seizures have been identified. However, genetic factors underlying the susceptibility of an individual to develop epileptic seizures have not been fully studied yet. In this review, we describe the genes involved in neuronal excitability in epileptogenic zones dependent on the Wnt/β-catenin pathway.
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Affiliation(s)
- Carmen Rubio
- Departamento de Neurofisiología, Instituto Nacional de Neurología y Neurocirugía, 14269 Ciudad de México, CDMX, Mexico
| | - Elisa Taddei
- Departamento de Neurofisiología, Instituto Nacional de Neurología y Neurocirugía, 14269 Ciudad de México, CDMX, Mexico
| | - Jorge Acosta
- Departamento de Neurofisiología, Instituto Nacional de Neurología y Neurocirugía, 14269 Ciudad de México, CDMX, Mexico
| | - Verónica Custodio
- Departamento de Neurofisiología, Instituto Nacional de Neurología y Neurocirugía, 14269 Ciudad de México, CDMX, Mexico
| | - Carlos Paz
- Departamento de Neurofisiología, Instituto Nacional de Neurología y Neurocirugía, 14269 Ciudad de México, CDMX, Mexico
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26
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Rana T, Behl T, Sehgal A, Sachdeva M, Mehta V, Sharma N, Singh S, Bungau S. Exploring Sonic Hedgehog Cell Signaling in Neurogenesis: Its Potential Role in Depressive Behavior. Neurochem Res 2021; 46:1589-1602. [PMID: 33786718 DOI: 10.1007/s11064-021-03307-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 03/01/2021] [Accepted: 03/17/2021] [Indexed: 12/26/2022]
Abstract
Depression is the most prevalent form of neuropsychiatric disorder affecting all age groups globally. As per the estimation of the World Health Organization (WHO), depression will develop into the foremost reason for disability globally by the year 2030. The primary neurobiological mechanism implicated in depression remains ambiguous; however, dysregulation of molecular and signaling transductions results in depressive disorders. Several theories have been developed to explain the pathogenesis of depression, however, none of them completely explained all aspects of depressive-pathogenesis. In the current review, we aimed to explore the role of the sonic hedgehog (Shh) signaling pathway in the development of the depressive disorder and its potential as the therapeutic target. Shh signaling has a crucial function in neurogenesis and neural tube patterning during the development of the central nervous system (CNS). Shh signaling performs a basic function in embryogenesis and hippocampal neurogenesis. Moreover, antidepressants are also known to enhance neurogenesis in the hippocampus, which further suggests the potential of Shh signaling. Furthermore, there is decreased expression of a glioma-associated oncogene (Gli1) and Smoothened (Smo) in depression. Moreover, antidepressants also regulate brain-derived neurotrophic factor (BDNF) and wingless protein (Wnt) signaling, therefore, Shh may be implicated in the pathogenesis of the depressive disorder. Deregulation of Shh signaling in CNS results in neurological disorders such as depression.
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Affiliation(s)
- Tarapati Rana
- Government Pharmacy College, Seraj, Distt. Mandi, Himachal Pradesh, India.,Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Monika Sachdeva
- Fatimah College of Health Sciences, Al Ain, United Arab Emirates
| | - Vineet Mehta
- Government College of Pharmacy, Rohru, Distt. Shimla, Himachal Pradesh, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
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27
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Barancik M, Kura B, LeBaron TW, Bolli R, Buday J, Slezak J. Molecular and Cellular Mechanisms Associated with Effects of Molecular Hydrogen in Cardiovascular and Central Nervous Systems. Antioxidants (Basel) 2020; 9:antiox9121281. [PMID: 33333951 PMCID: PMC7765453 DOI: 10.3390/antiox9121281] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/12/2020] [Accepted: 12/13/2020] [Indexed: 02/06/2023] Open
Abstract
The increased production of reactive oxygen species and oxidative stress are important factors contributing to the development of diseases of the cardiovascular and central nervous systems. Molecular hydrogen is recognized as an emerging therapeutic, and its positive effects in the treatment of pathologies have been documented in both experimental and clinical studies. The therapeutic potential of hydrogen is attributed to several major molecular mechanisms. This review focuses on the effects of hydrogen on the cardiovascular and central nervous systems, and summarizes current knowledge about its actions, including the regulation of redox and intracellular signaling, alterations in gene expressions, and modulation of cellular responses (e.g., autophagy, apoptosis, and tissue remodeling). We summarize the functions of hydrogen as a regulator of nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated redox signaling and the association of hydrogen with mitochondria as an important target of its therapeutic action. The antioxidant functions of hydrogen are closely associated with protein kinase signaling pathways, and we discuss possible roles of the phosphoinositide 3-kinase/protein kinase B (PI3K/Akt) and Wnt/β-catenin pathways, which are mediated through glycogen synthase kinase 3β and its involvement in the regulation of cellular apoptosis. Additionally, current knowledge about the role of molecular hydrogen in the modulation of autophagy and matrix metalloproteinases-mediated tissue remodeling, which are other responses to cellular stress, is summarized in this review.
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Affiliation(s)
- Miroslav Barancik
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
| | - Branislav Kura
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
- Faculty of Medicine, Institute of Physiology, Comenius University in Bratislava, 84215 Bratislava, Slovakia
| | - Tyler W. LeBaron
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
- Molecular Hydrogen Institute, Enoch, UT 84721, USA
- Department of Kinesiology and Outdoor Recreation, Southern Utah University, Cedar City, UT 84720, USA
| | - Roberto Bolli
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY 40292, USA;
| | - Jozef Buday
- Department of Psychiatry, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 12108 Prague, Czech Republic;
| | - Jan Slezak
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
- Correspondence: ; Tel.: +42-19-03-620-181
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Rivera DS, Lindsay CB, Oliva CA, Codocedo JF, Bozinovic F, Inestrosa NC. Effects of long-lasting social isolation and re-socialization on cognitive performance and brain activity: a longitudinal study in Octodon degus. Sci Rep 2020; 10:18315. [PMID: 33110163 PMCID: PMC7591540 DOI: 10.1038/s41598-020-75026-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/27/2020] [Indexed: 12/18/2022] Open
Abstract
Social isolation is considered a stressful situation that results in increased physiological reactivity to novel stimuli, altered behaviour, and impaired brain function. Here, we investigated the effects of long-term social isolation on working memory, spatial learning/memory, hippocampal synaptic transmission, and synaptic proteins in the brain of adult female and male Octodon degus. The strong similarity between degus and humans in social, metabolic, biochemical, and cognitive aspects, makes it a unique animal model that can be highly applicable for further social, emotional, cognitive, and aging studies. These animals were socially isolated from post-natal and post-weaning until adulthood. We also evaluated if re-socialization would be able to compensate for reactive stress responses in chronically stressed animals. We showed that long-term social isolation impaired the HPA axis negative feedback loop, which can be related to cognitive deficits observed in chronically stressed animals. Notably, re-socialization restored it. In addition, we measured physiological aspects of synaptic transmission, where chronically stressed males showed more efficient transmission but deficient plasticity, as the reverse was true on females. Finally, we analysed synaptic and canonical Wnt signalling proteins in the hypothalamus, hippocampus, and prefrontal cortex, finding both sex- and brain structure-dependent modulation, including transient and permanent changes dependent on stress treatment.
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Affiliation(s)
- Daniela S Rivera
- GEMA Center for Genomics, Ecology and Environment, Facultad de Estudios Interdisciplinarios, Universidad Mayor, Santiago, Chile.
| | - Carolina B Lindsay
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carolina A Oliva
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan Francisco Codocedo
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco Bozinovic
- Center for Applied Ecology and Sustainability (CAPES), Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nibaldo C Inestrosa
- Center of Aging and Regeneration UC (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile. .,Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas, Chile.
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Menet R, Bourassa P, Calon F, ElAli A. Dickkopf-related protein-1 inhibition attenuates amyloid-beta pathology associated to Alzheimer's disease. Neurochem Int 2020; 141:104881. [PMID: 33068684 DOI: 10.1016/j.neuint.2020.104881] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/09/2020] [Accepted: 10/12/2020] [Indexed: 12/16/2022]
Abstract
Alzheimer's disease (AD) constitutes the leading cause of dementia worldwide. It is associated to amyloid-β (Aβ) aggregation and tau hyper-phosphorylation, accompanied by a progressive cognitive decline. Evidence suggests that the canonical Wnt pathway is deregulated in AD. Pathway activity is mediated by β-catenin stabilization in the cytosol, and subsequent translocation to the nucleus to regulate the expression of several genes implicated in brain homeostasis and functioning. It was recently proposed that Dickkopf-related protein-1 (DKK1), an endogenous antagonist of the pathway, might be implicated in AD pathogenesis. Here, we hypothesized that canonical Wnt pathway deactivation associated to DKK1 induction contributes to late-onset AD pathogenesis, and thus DKK1 neutralization could attenuate AD pathology. For this purpose, human post-mortem AD brain samples were used to assess pathway activity, and aged APPswe/PS1 mice were used to investigate DKK1 in late-onset AD-like pathology and therapy. Our findings indicate that β-catenin levels progressively decrease in the brain of AD patients, correlating with the duration of symptoms. Next, we found that Aβ pathology in APPswe/PS1 mediates DKK1 induction in the brain. Pharmacological neutralization of DKK1's biological activity in APPswe/PS1 mice restores pathway activity by stabilizing β-catenin, attenuates Aβ pathology, and ameliorates the memory of mice. Attenuation of AD-like pathology upon DKK1 inhibition is accompanied by a reduced protein expression of beta-site amyloid precursor protein (APP) cleaving enzyme-1 (BACE1). Moreover, DKK1 inhibition enhances vascular density, promotes blood-brain barrier (BBB) integrity by increasing claudin 5, glucose transporter-1 (GLUT1), and ATP-binding cassette sub-family B member-1 (ABCB1) protein expression, as well as ameliorates synaptic plasticity by increasing brain-derived neurotrophic factor (BDNF), and postsynaptic density protein-95 (PSD-95) protein expression. DKK1 conditional induction reduces claudin 5, abcb1, and psd-95 mRNA expression, validating its inhibition effects. Our results indicate that neutralization of DKK1's biological activity attenuates AD-like pathology by restoring canonical Wnt pathway activity.
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Affiliation(s)
- Romain Menet
- Neuroscience Axis, Research Center of CHU de Québec - Université Laval, Quebec City, QC, Canada; Department of Psychiatry and Neuroscience, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Philippe Bourassa
- Neuroscience Axis, Research Center of CHU de Québec - Université Laval, Quebec City, QC, Canada; Faculty of Pharmacy, Université Laval, Quebec City, QC, Canada
| | - Frédéric Calon
- Neuroscience Axis, Research Center of CHU de Québec - Université Laval, Quebec City, QC, Canada; Faculty of Pharmacy, Université Laval, Quebec City, QC, Canada
| | - Ayman ElAli
- Neuroscience Axis, Research Center of CHU de Québec - Université Laval, Quebec City, QC, Canada; Department of Psychiatry and Neuroscience, Faculty of Medicine, Université Laval, Quebec City, QC, Canada.
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Ghorbani M, Shahabi P, Karimi P, Soltani-Zangbar H, Morshedi M, Bani S, Jafarzadehgharehziaaddin M, Sadeghzadeh-Oskouei B, Ahmadalipour A. Impacts of epidural electrical stimulation on Wnt signaling, FAAH, and BDNF following thoracic spinal cord injury in rat. J Cell Physiol 2020; 235:9795-9805. [PMID: 32488870 DOI: 10.1002/jcp.29793] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 12/14/2022]
Abstract
Electrical stimulation (ES) has been shown to improve some of impairments after spinal cord injury (SCI), but the underlying mechanisms remain unclear. The Wnt signaling pathways and the endocannabinoid system appear to be modulated in response to SCI. This study aimed to investigate the effect of ES therapy on the activity of canonical/noncanonical Wnt signaling pathways, brain-derived neurotrophic factor (BDNF), and fatty-acid amide hydrolase (FAAH), which regulate endocannabinoids levels. Forty male Wistar rats were randomly divided into four groups: (a) Sham, (b) laminectomy + epidural subthreshold ES, (c) SCI, and (d) SCI + epidural subthreshold ES. A moderate contusion SCI was performed at the thoracic level (T10). Epidural subthreshold ES was delivered to upper the level of T10 segment every day (1 hr/rat) for 2 weeks. Then, animals were killed and immunoblotting was used to assess spinal cord parameters. Results revealed that ES intervention for 14 days could significantly increase wingless-type3 (Wnt3), Wnt7, β-catenin, Nestin, and cyclin D1 levels, as well as phosphorylation of glycogen synthase kinase 3β and Jun N-terminal kinase. Additionally, SCI reduced BDNF and FAAH levels, and ES increased BDNF and FAAH levels in the injury site. We propose that ES therapy may improve some of impairments after SCI through Wnt signaling pathways. Outcomes also suggest that BDNF and FAAH are important players in the beneficial impacts of ES therapy. However, the precise mechanism of BDNF, FAAH, and Wnt signaling pathways on SCI requires further investigation.
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Affiliation(s)
- Meysam Ghorbani
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran.,Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parviz Shahabi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pouran Karimi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Soltani-Zangbar
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Morshedi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran.,Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soheila Bani
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | | | | | - Ali Ahmadalipour
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Medicine, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
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Serafino A, Giovannini D, Rossi S, Cozzolino M. Targeting the Wnt/β-catenin pathway in neurodegenerative diseases: recent approaches and current challenges. Expert Opin Drug Discov 2020; 15:803-822. [PMID: 32281421 DOI: 10.1080/17460441.2020.1746266] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Wnt/β-catenin signaling is an evolutionarily conserved pathway having a crucial role in embryonic and adult life. Specifically, the Wnt/β-catenin axis is pivotal to the development and homeostasis of the nervous system, and its dysregulation has been associated with various neurological disorders, including neurodegenerative diseases. Therefore, this signaling pathway has been proposed as a potential therapeutic target against neurodegeneration. AREAS COVERED This review focuses on the role of Wnt/β-catenin pathway in the pathogenesis of neurodegenerative diseases, including Parkinson's, Alzheimer's Diseases and Amyotrophic Lateral Sclerosis. The evidence showing that defects in the signaling might be involved in the development of these diseases, and the pharmacological approaches tested so far, are discussed. The possibilities that this pathway offers in terms of new therapeutic opportunities are also considered. EXPERT OPINION The increasing interest paid to the role of Wnt/β-catenin pathway in the onset of neurodegenerative diseases demonstrates how targeting this signaling for therapeutic purposes could be a great opportunity for both neuroprotection and neurorepair. Without overlooking some licit concerns about drug safety and delivery to the brain, there is growing and more convincing evidence that restoring this signaling in neurodegenerative diseases may strongly increase the chance to develop disease-modifying treatments for these brain pathologies.
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Affiliation(s)
- Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
| | - Daniela Giovannini
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
| | - Simona Rossi
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
| | - Mauro Cozzolino
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
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Chen K, Phan T, Lin A, Sardo L, Mele AR, Nonnemacher MR, Klase Z. Morphine exposure exacerbates HIV-1 Tat driven changes to neuroinflammatory factors in cultured astrocytes. PLoS One 2020; 15:e0230563. [PMID: 32210470 PMCID: PMC7094849 DOI: 10.1371/journal.pone.0230563] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 03/03/2020] [Indexed: 12/16/2022] Open
Abstract
Despite antiretroviral therapy human immunodeficiency virus type-1 (HIV-1) infection results in neuroinflammation of the central nervous system that can cause HIV-associated neurocognitive disorders (HAND). The molecular mechanisms involved in the development of HAND are unclear, however, they are likely due to both direct and indirect consequences of HIV-1 infection and inflammation of the central nervous system. Additionally, opioid abuse in infected individuals has the potential to exacerbate HIV-comorbidities, such as HAND. Although restricted for productive HIV replication, astrocytes (comprising 40-70% of all brain cells) likely play a significant role in neuropathogenesis in infected individuals due to the production and response of viral proteins. The HIV-1 protein Tat is critical for viral transcription, causes neuroinflammation, and can be secreted from infected cells to affect uninfected bystander cells. The Wnt/β-catenin signaling cascade plays an integral role in restricting HIV-1 infection in part by negatively regulating HIV-1 Tat function. Conversely, Tat can overcome this negative regulation and inhibit β-catenin signaling by sequestering the critical transcription factor TCF-4 from binding to β-catenin. Here, we aimed to explore how opiate exposure affects Tat-mediated suppression of β-catenin in astrocytes and the downstream modulation of neuroinflammatory genes. We observed that morphine can potentiate Tat suppression of β-catenin activity in human astrocytes. In contrast, Tat mutants deficient in secretion, and lacking neurotoxic effects, do not affect β-catenin activity in the presence or absence of morphine. Finally, morphine treatment of astrocytes was sufficient to reduce the expression of genes involved in neuroinflammation. Examining the molecular mechanisms of how HIV-1 infection and opiate exposure exacerbate neuroinflammation may help us inform or predict disease progression prior to HAND development.
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Affiliation(s)
- Kenneth Chen
- Department of Biological Sciences, University of the Sciences, Philadelphia, Pennsylvania, United States of America
| | - Thienlong Phan
- Department of Biological Sciences, University of the Sciences, Philadelphia, Pennsylvania, United States of America
| | - Angel Lin
- Department of Biological Sciences, University of the Sciences, Philadelphia, Pennsylvania, United States of America
| | - Luca Sardo
- Department of Biological Sciences, University of the Sciences, Philadelphia, Pennsylvania, United States of America
- Current institution – Department of Infectious Diseases and Vaccines, MRL, Merck & Co., Inc., West Point, Pennsylvania, United States of America
| | - Anthony R. Mele
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
- Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Michael R. Nonnemacher
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
- Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Zachary Klase
- Department of Biological Sciences, University of the Sciences, Philadelphia, Pennsylvania, United States of America
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Cheng J, Shen W, Jin L, Pan J, Zhou Y, Pan G, Xie Q, Hu Q, Wu S, Zhang H, Chen X. Treadmill exercise promotes neurogenesis and myelin repair via upregulating Wnt/β‑catenin signaling pathways in the juvenile brain following focal cerebral ischemia/reperfusion. Int J Mol Med 2020; 45:1447-1463. [PMID: 32323740 PMCID: PMC7138282 DOI: 10.3892/ijmm.2020.4515] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 01/20/2020] [Indexed: 12/15/2022] Open
Abstract
Physical exercise has a neuroprotective effect and is an important treatment after ischemic stroke. Promoting neurogenesis and myelin repair in the penumbra is an important method for the treatment of ischemic stroke. However, the role and potential mechanism of exercise in neurogenesis and myelin repair still needs to be clarified. The goal of the present study was to ascertain the possible effect of treadmill training on the neuroprotective signaling pathway in juvenile rats after ischemic stroke. The model of middle cerebral artery occlusion (MCAO) in juvenile rats was established and then the rats were randomly divided into 9 groups. XAV939 (an inhibitor of the Wnt/β‑catenin pathway) was used to confirm the effects of the Wnt/β‑catenin signaling pathway on exercise‑mediated neurogenesis and myelin repair. Neurological deficits were detected by modified neurological severity score, the injury of brain tissue and the morphology of neurons was detected by hematoxylin‑eosin staining and Nissl staining, and the infarct volume was detected by 2,3,5‑triphenyl tetrazolium chloride staining. The changes in myelin were observed by Luxol fast blue staining. The neuron ultrastructure was observed by transmission electron microscopy. Immunofluorescence and western blots analyzed the molecular mechanisms. The results showed that treadmill exercise improved neurogenesis, enhanced myelin repair, promoted neurological function recovery and reduced infarct volume. These were the results of the upregulation of Wnt3a and nucleus β‑catenin, brain‑derived neurotrophic factor (BDNF) and myelin basic protein (MBP). In addition, XAV939 inhibited treadmill exercise‑induced neurogenesis and myelin repair, which was consistent with the downregulation of Wnt3a, nucleus β‑catenin, BDNF and MBP expression, and the deterioration of neurological function. In summary, treadmill exercise promotes neurogenesis and myelin repair by upregulating the Wnt/β‑catenin signaling pathway, to improve the neurological deficit caused by focal cerebral ischemia/reperfusion.
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Affiliation(s)
- Jingyan Cheng
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Weimin Shen
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Lingqin Jin
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Juanjuan Pan
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Yan Zhou
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Guoyuan Pan
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Qingfeng Xie
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Quan Hu
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Shamin Wu
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Hongmei Zhang
- Nursing Department, Hangzhou Children's Hospital, Hangzhou, Zhejiang 310000, P.R. China
| | - Xiang Chen
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
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Zhou X, Tao L, Zhao M, Wu S, Obeng E, Wang D, Zhang W. Wnt/ β-catenin signaling regulates brain-derived neurotrophic factor release from spinal microglia to mediate HIV 1 gp120-induced neuropathic pain. Mol Pain 2020; 16:1744806920922100. [PMID: 32354292 PMCID: PMC7227158 DOI: 10.1177/1744806920922100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/13/2020] [Accepted: 03/30/2020] [Indexed: 12/14/2022] Open
Abstract
HIV-associated neuropathic pain (HNP) is a common complication for AIDS patients. The pathological mechanism governing HNP has not been elucidated, and HNP has no effective analgesic treatment. Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophic factor family related to the plasticity of the central nervous system. BDNF dysregulation is involved in many neurological diseases, including neuropathic pain. However, to the best of our knowledge, the role and mechanism of BDNF in HNP have not been elucidated. In this study, we explored this condition in an HNP mouse model induced by intrathecal injection of gp120. We found that Wnt3a and β-catenin expression levels increased in the spinal cord of HNP mice, consequently regulating the expression of BDNF and affecting hypersensitivity. In addition, the blockade of Wing-Int/β-catenin signaling, BDNF/TrkB or the BDNF/p75NTR pathway alleviated mechanical allodynia. BDNF immunoreactivity was colocalized with spinal microglial cells, which were activated in HNP mice. Inhibition of spinal microglial cell activation by minocycline relieved mechanical allodynia in HNP mice. This study helped to elucidate the role of the Wing-Int/β-catenin/BDNF signaling axis in HNP and may establish a foundation for further research investigating the Wing-Int/β-catenin/BDNF signaling axis as a target for HNP treatment.
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Affiliation(s)
- Xinxin Zhou
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Lei Tao
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Mengru Zhao
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Shengjun Wu
- Clinical Laboratory of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Enoch Obeng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Dan Wang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Wenping Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
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Garro-Martínez E, Vidal R, Adell A, Díaz Á, Castro E, Amigó J, Gutiérrez-Lanza R, Florensa-Zanuy E, Gómez-Acero L, Taketo MM, Pazos Á, Pilar-Cuéllar F. β-Catenin Role in the Vulnerability/Resilience to Stress-Related Disorders Is Associated to Changes in the Serotonergic System. Mol Neurobiol 2019; 57:1704-1715. [DOI: 10.1007/s12035-019-01841-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 11/22/2019] [Indexed: 01/02/2023]
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Telomerase increasing compound protects hippocampal neurons from amyloid beta toxicity by enhancing the expression of neurotrophins and plasticity related genes. Sci Rep 2019; 9:18118. [PMID: 31792359 PMCID: PMC6889131 DOI: 10.1038/s41598-019-54741-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/03/2019] [Indexed: 12/31/2022] Open
Abstract
The telomerase reverse transcriptase protein, TERT, is expressed in the adult brain and its exogenic expression protects neurons from oxidative stress and from the cytotoxicity of amyloid beta (Aβ). We previously showed that telomerase increasing compounds (AGS) protected neurons from oxidative stress. Therefore, we suggest that increasing TERT by AGS may protect neurons from the Aβ-induced neurotoxicity by influencing genes and factors that participate in neuronal survival and plasticity. Here we used a primary hippocampal cell culture exposed to aggregated Aβ and hippocampi from adult mice. AGS treatment transiently increased TERT gene expression in hippocampal primary cell cultures in the presence or absence of Aβ and protected neurons from Aβ induced neuronal degradation. An increase in the expression of Growth associated protein 43 (GAP43), and Feminizing locus on X-3 genes (NeuN), in the presence or absence of Aβ, and Synaptophysin (SYP) in the presence of Aβ was observed. GAP43, NeuN, SYP, Neurotrophic factors (NGF, BDNF), beta-catenin and cyclin-D1 expression were increased in the hippocampus of AGS treated mice. This data suggests that increasing TERT by pharmaceutical compounds partially exerts its neuroprotective effect by enhancing the expression of neurotrophic factors and neuronal plasticity genes in a mechanism that involved Wnt/beta-catenin pathway.
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Trzeciecka A, Carmy T, Hackam AS, Bhattacharya SK. Lipid profiling dataset of the Wnt3a-induced optic nerve regeneration. Data Brief 2019; 25:103966. [PMID: 31508459 PMCID: PMC6723204 DOI: 10.1016/j.dib.2019.103966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/21/2019] [Accepted: 04/23/2019] [Indexed: 02/04/2023] Open
Abstract
We present lipid profiling data from mouse retina and optic nerve after optic nerve crush and during Wnt3a-induced axonal regeneration at 7 and 15 days post-crush. This data is available at the Metabolomics Workbench, http://www.metabolomicsworkbench.org (Project ID: PR000718).
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Affiliation(s)
- Anna Trzeciecka
- Bascom Palmer Eye Institute, Miller School of Medicine at University of Miami, Miami, FL, 33136, USA
| | - Tal Carmy
- Bascom Palmer Eye Institute, Miller School of Medicine at University of Miami, Miami, FL, 33136, USA
| | - Abigail S Hackam
- Bascom Palmer Eye Institute, Miller School of Medicine at University of Miami, Miami, FL, 33136, USA
| | - Sanjoy K Bhattacharya
- Bascom Palmer Eye Institute, Miller School of Medicine at University of Miami, Miami, FL, 33136, USA
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Zhang JY, Lee JH, Gu X, Wei ZZ, Harris MJ, Yu SP, Wei L. Intranasally Delivered Wnt3a Improves Functional Recovery after Traumatic Brain Injury by Modulating Autophagic, Apoptotic, and Regenerative Pathways in the Mouse Brain. J Neurotrauma 2019; 35:802-813. [PMID: 29108471 DOI: 10.1089/neu.2016.4871] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Traumatic brain injury (TBI) is a prevalent disorder, but no effective therapies currently exist. An underlying pathophysiology of TBI includes the pathological elevation of autophagy. β-Catenin, a downstream mediator of the canonical Wnt pathway, is a repressor of autophagy. The Wnt/β-catenin pathway plays a crucial role in cell proliferation and neuronal plasticity/repair in the adult brain. We hypothesized that activation of this pathway could promote neuroprotection and neural regeneration following TBI. In the controlled cortical impact (CCI) model of TBI in C57BL/6 mice (total n = 160), we examined intranasal application of recombinant Wnt3a (2 μg/kg) in a short-term (1 dose/day for 2 days) and long-term (1 dose/day for 7 days) regimen. Immunohistochemistry was performed at 1 to 14 days post-TBI to assess cell death and neurovascular regeneration. Western blotting measured canonical Wnt3a activity, expression of growth factors, and cell death markers. Longitudinal behavior assays evaluated functional recovery. In short-term experiments, Wnt3a treatment with a 60-min delay post-TBI suppressed TBI-induced autophagic activity in neurons (44.3 ± 6.98 and 4.25 ± 2.53 LC3+/NeuN+ double positive cells in TBI+Saline and TBI+Wnt3a mice, respectively; p < 0.0001, n = 5/group), reduced autophagic markers light chain 3 (LC3)-II and Beclin-1, as well as injury markers caspase-3 and matrix metalloproteinase 9 (MMP-9). The Wnt3a treatment reduced cell death and contusion volume (0.72 ± 0.07 mm2 and 0.26 ± 0.04 mm2 in TBI+Saline and TBI+Wnt3a mice, respectively; p < 0.001, n = 5/group). The 7-day Wnt3a treatment increased levels of β-catenin and growth factors glial-derived growth factor (GDNF) and vascular endothelial growth factor (VEGF). This chronic Wnt3a therapy augmented neurogenesis (0.52 ± 0.09 and 1.25 ± 0.13 BrdU+/NeuN+ co-labeled cells in TBI+Saline mice and TBI+Wnt3a mice, respectively; p < 0.01, n = 6/group) and angiogenesis (0.26 ± 0.07 and 0.74 ± 0.13 BrdU+/GLUT1+ co-labeled cells in TBI+Saline and TBI+Wnt3a mice, respectively; p = 0.014, n = 6/group). The treatment improved performance in the rotarod test and adhesive removal test. Targeting the Wnt pathway implements a unique combination of protective and regenerative approaches after TBI.
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Affiliation(s)
- James Ya Zhang
- 1 Department of Anesthesiology, Emory University School of Medicine , Atlanta, Georgia
| | - Jin Hwan Lee
- 1 Department of Anesthesiology, Emory University School of Medicine , Atlanta, Georgia
| | - Xiaohuan Gu
- 1 Department of Anesthesiology, Emory University School of Medicine , Atlanta, Georgia
| | - Zheng Zachory Wei
- 1 Department of Anesthesiology, Emory University School of Medicine , Atlanta, Georgia
| | | | - Shan Ping Yu
- 1 Department of Anesthesiology, Emory University School of Medicine , Atlanta, Georgia
| | - Ling Wei
- 1 Department of Anesthesiology, Emory University School of Medicine , Atlanta, Georgia .,2 Department of Neurology, Emory University School of Medicine , Atlanta, Georgia
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Tayyab M, Shahi MH, Farheen S, Mariyath P M M, Khanam N, Hossain MM. Exploring the potential role of sonic hedgehog cell signalling pathway in antidepressant effects of nicotine in chronic unpredictable mild stress rat model. Heliyon 2019; 5:e01600. [PMID: 31193084 PMCID: PMC6514495 DOI: 10.1016/j.heliyon.2019.e01600] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 03/05/2019] [Accepted: 04/25/2019] [Indexed: 12/19/2022] Open
Abstract
Nicotine is the most common and highly addictive drug of abuse, associated with several life-threatening diseases and high mortality. Nicotine abuse is the concerted effort to feel reward and fight depression in depressed individuals. The underlying mechanism of nicotine is to activate the brain reward system in the central nervous system and provide an antidepressant effect. Antidepressants provide their therapeutic effect by stimulating hippocampal neurogenesis, which can be correlated with brain derived neurotrophic factor (BDNF) expression in the hippocampus. BDNF interacts with Wnt/β-catenin and sonic hedgehog (Shh) signalling cascade to stimulate hippocampal neurogenesis. Shh is the marker of hippocampal neurogenesis and also involved in the neuropathology of depression. But knowledge in this area to identify the potential therapeutic target is limited. In our study, we explored the role of BDNF, Wnt/β-catenin and Shh signalling in depression and the involvement of these signalling pathways in providing an antidepressant effect by nicotine. Our investigations showed that chronic unpredictable mild stress induced depression results declined expression of BDNF, Wnt/β-catenin, Shh and its downstream transcription factors GLI1/2/3 and NKX2.2 in the hippocampus of male Wistar rat. Moreover, we also observed that nicotine administration increased the expression of these signalling molecules in providing the antidepressant effects.
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Affiliation(s)
- Mohd Tayyab
- Interdisciplinary Brain Research Centre, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Mehdi H Shahi
- Interdisciplinary Brain Research Centre, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Shirin Farheen
- Interdisciplinary Brain Research Centre, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Mubeena Mariyath P M
- Interdisciplinary Brain Research Centre, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Nabeela Khanam
- Interdisciplinary Brain Research Centre, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - M Mobarak Hossain
- Interdisciplinary Brain Research Centre, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India.,Department of Physiology, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
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40
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Albeely AM, Ryan SD, Perreault ML. Pathogenic Feed-Forward Mechanisms in Alzheimer's and Parkinson's Disease Converge on GSK-3. Brain Plast 2018; 4:151-167. [PMID: 30598867 PMCID: PMC6311352 DOI: 10.3233/bpl-180078] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2018] [Indexed: 12/23/2022] Open
Abstract
Alzheimer's disease (AD) and Parkinson's disease (PD) share many commonalities ranging from signaling deficits such as altered cholinergic activity, neurotrophin and insulin signaling to cell stress cascades that result in proteinopathy, mitochondrial dysfunction and neuronal cell death. These pathological processes are not unidirectional, but are intertwined, resulting in a series of feed-forward loops that worsen symptoms and advance disease progression. At the center of these loops is glycogen synthase kinase-3 (GSK-3), a keystone protein involved in many of the multidirectional biological processes that contribute to AD and PD neuropathology. Here, a unified overview of the involvement of GSK-3 in the major processes involved in these diseases will be presented. The mechanisms by which these processes are linked will be discussed and the feed-forward pathways identified. In this regard, this review will put forth the notion that combination therapy, targeting these multiple facets of AD or PD neuropathology is a necessary next step in the search for effective therapies.
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Affiliation(s)
- Abdalla M. Albeely
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada
| | - Scott D. Ryan
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada
| | - Melissa L. Perreault
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada
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Orellana AM, Leite JA, Kinoshita PF, Vasconcelos AR, Andreotti DZ, de Sá Lima L, Xavier GF, Kawamoto EM, Scavone C. Ouabain increases neuronal branching in hippocampus and improves spatial memory. Neuropharmacology 2018; 140:260-274. [PMID: 30099050 DOI: 10.1016/j.neuropharm.2018.08.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 07/05/2018] [Accepted: 08/06/2018] [Indexed: 12/20/2022]
Abstract
Previous research shows Ouabain (OUA) to bind Na, K-ATPase, thereby triggering a number of signaling pathways, including the transcription factors NFᴋB and CREB. These transcription factors play a key role in the regulation of BDNF and WNT-β-catenin signaling cascades, which are involved in neuroprotection and memory regulation. This study investigated the effects of OUA (10 nM) in the modulation of the principal signaling pathways involved in morphological plasticity and memory formation in the hippocampus of adult rats. The results show intrahippocampal injection of OUA 10 nM to activate the Wnt/β-Catenin signaling pathway and to increase CREB/BDNF and NFᴋB levels. These effects contribute to important changes in the cellular microenvironment, resulting in enhanced levels of dendritic branching in hippocampal neurons, in association with an improvement in spatial reference memory and the inhibition of long-term memory extinction.
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Affiliation(s)
- Ana Maria Orellana
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
| | - Jacqueline Alves Leite
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
| | - Paula Fernanda Kinoshita
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
| | - Andrea Rodrigues Vasconcelos
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
| | - Diana Zukas Andreotti
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
| | - Larissa de Sá Lima
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
| | - Gilberto Fernando Xavier
- Department of Physiology, Institute of Bioscience, University of São Paulo, Adress: Rua do Matão, Travessa 14, 101, São Paulo, 05508-090, Brazil.
| | - Elisa Mitiko Kawamoto
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
| | - Cristoforo Scavone
- Department of Pharmacology, Institute of Biomedical Science I University of São Paulo, Room 338, Av. Prof. Lineu Prestes, 1524, ICB I, Cidade Universitária, 05508-900, São Paulo, SP. Brazil.
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Yu WB, Cao L, Zhao YY, Xiao W, Xiao BG. Comparing the role of Ginkgolide B and Ginkgolide K on cultured astrocytes exposed to oxygen‑glucose deprivation. Mol Med Rep 2018; 18:4417-4427. [PMID: 30221704 PMCID: PMC6172388 DOI: 10.3892/mmr.2018.9450] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 07/27/2018] [Indexed: 12/28/2022] Open
Abstract
Ginkgolide B (GB) and ginkgolide K (GK) are two main active monomers of ginkgolides that present a unique group of diterpenes found naturally in the leaves of the Ginkgo biloba tree. Astrocytes are the most abundant cell type within the central nervous system (CNS) and serve essential roles in maintaining healthy brain function. The present study compared the biological effects of GB and GK on astrocytes exposed to oxygen-glucose deprivation (OGD). The results demonstrated that GB and GK exhibit many different actions. The level of the platelet-activating factor (PAF) was elevated on astrocytes exposed to OGD, and inhibited by GB and GK treatment. Although GB and GK inhibited the expression of p-NF-κB/p65, GK exerted stronger anti-inflammatory and antioxidant effects on astrocytes exposed to OGD than GB by inhibiting interleukin (IL)-6 and tumor necrosis factor-α, and inducing IL-10 and the nuclear factor-erythroid 2-related factor 2/HO-1 signaling pathway. When compared with GB treatment, GK treatment maintained high levels of phosphoinositide 3-kinase/phosphorylated-protein kinase B expression, and induced a marked upregulation of Wnt family member 1 and brain derived neurotrophic factor, indicating that GK, as a natural plant compound, may have more attractive prospects for clinical application in the treatment of neurological disorders than GB.
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Affiliation(s)
- Wen-Bo Yu
- Department of Neurology, Huashan Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200040, P.R. China
| | - Liang Cao
- State Key Laboratory of New‑Tech for Chinese Medicine Pharmaceutical Process, Lianyungang, Jiangsu 222047, P.R. China
| | - Yan-Yin Zhao
- Department of Neurology, Huashan Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200040, P.R. China
| | - Wei Xiao
- State Key Laboratory of New‑Tech for Chinese Medicine Pharmaceutical Process, Lianyungang, Jiangsu 222047, P.R. China
| | - Bao-Guo Xiao
- Department of Neurology, Huashan Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200040, P.R. China
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43
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Zhang W, Shi Y, Peng Y, Zhong L, Zhu S, Zhang W, Tang SJ. Neuron activity-induced Wnt signaling up-regulates expression of brain-derived neurotrophic factor in the pain neural circuit. J Biol Chem 2018; 293:15641-15651. [PMID: 30139740 DOI: 10.1074/jbc.ra118.002840] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 05/11/2018] [Indexed: 12/20/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a master regulator of synaptic plasticity in various neural circuits of the mammalian central nervous system. Neuron activity-induced BDNF gene expression is regulated through the Ca2+/CREB pathway, but other regulatory factors may also be involved in controlling BDNF levels. We report here that Wnt/β-catenin signaling plays a key role in controlling neuron activity-regulated BDNF expression. Using primary cortical cultures, we show that blockade of Wnt/β-catenin signaling inhibits the BDNF up-regulation that is induced by activation of the N-methyl-d-aspartic acid (NMDA) receptor and that activation of the Wnt/β-catenin signaling pathway stimulates BDNF expression. In vivo, Wnt/β-catenin signaling activated BDNF expression and was required for peripheral pain-induced up-regulation of BDNF in the mouse spine. We also found that conditional deletion of one copy of either Wntless (Wls) or β-catenin by Nestin-Cre-mediated recombination is sufficient to inhibit the pain-induced up-regulation of BDNF. We further show that the Wnt/β-catenin/BDNF axis in the spinal neural circuit plays an important role in regulating capsaicin-induced pain. These results indicate that neuron activity-induced Wnt signaling stimulates BDNF expression in the pain neural circuits. We propose that pain-induced Wnt secretion may provide an additional mechanism for intercellular coordination of BDNF expression in the neural circuit.
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Affiliation(s)
- Wenping Zhang
- From the Departments of Neuroscience and Cell Biology and.,the College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yuqiang Shi
- From the Departments of Neuroscience and Cell Biology and
| | - Yanxi Peng
- the School of Pharmaceutical Sciences and Laboratory Animal Center of Sun Yat-Sen University, Guangzhou 510275, China.,the Basic Medical Department, Xiangnan University, Chenzhou 423000, China, and
| | - Ling Zhong
- the School of Pharmaceutical Sciences and Laboratory Animal Center of Sun Yat-Sen University, Guangzhou 510275, China.,the Shenzhen Center for ADR Monitoring, Shenzhen 518001, China
| | - Shuang Zhu
- Ophthalmology, University of Texas Medical Branch, Galveston, Texas 77555
| | - Wenbo Zhang
- From the Departments of Neuroscience and Cell Biology and.,Ophthalmology, University of Texas Medical Branch, Galveston, Texas 77555
| | - Shao-Jun Tang
- From the Departments of Neuroscience and Cell Biology and
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Guo CC, Jiao CH, Gao ZM. Silencing of LncRNA BDNF-AS attenuates Aβ 25-35-induced neurotoxicity in PC12 cells by suppressing cell apoptosis and oxidative stress. Neurol Res 2018; 40:795-804. [PMID: 29902125 DOI: 10.1080/01616412.2018.1480921] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To explore the effects of long non-coding RNA (lncRNA) brain-derived neurotrophic factor anti-sense (BDNF-AS) on the Aβ25-35-induced neurotoxicity in PC12 cells. METHODS PC12 cells were induced by Aβ25-35 to construct cell injury models of Alzheimer's disease (AD), and then transfected with siRNA-BDNF-AS. Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to detect the expressions of BDNF-AS and BDNF. Besides, 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and Hoechst33342 staining were utilized to analyze the cell viability and apoptosis, respectively, Western blotting to evaluate the protein expressions, immunofluorescence to assess the Cytochrome C (Cyt C) release, and Rhodamine 123 (Rh123) to measure the mitochondrial membrane potential (MMP).The evaluation of oxidative stress was conducted via the determination of the levels of reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT). RESULTS Aβ25-35 apparently increased BDNF-AS but decreased BDNF in PC12 cells, which also reduced viability and induced apoptosis of PC12 cells. Silencing of BDNF-AS could significantly up-regulate BDNF in Aβ25-35-induced PC12 cells, with the elevated cell viability. Moreover, silencing BDNF-AS inhibited the apoptosis of Aβ25-35-induced PC12 cells, suppressed the release of Cyt C, reduced the expression of cleaved caspase-3 and Bax, and lowered the mean fluorescence intensity (MFI) of Rh123, but it elevated the expression of Bcl-2. Besides, silencing BDNF-AS also reduced ROS intensity and MDA content, but enhanced the activities of SOD and CAT. CONCLUSION Silencing BDNF-AS exerts protective functions to increase the viability, inhibit the apoptosis and oxidative stress of Aβ25-35-induced PC12 cells by negative regulation of BDNF. ABBREVIATIONS Aβ25-35: amyloid beta peptide 25-35; AD: Alzheimer's disease; LncRNA BDNF-AS: long non-coding RNA brain-derived neurotrophic factor anti-sense; OS: Oxidative stress.
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Affiliation(s)
- Cong-Cong Guo
- a Department of rehabilitation , The People's Hospital of Zhangqiu , Ji'nan , China
| | - Chun-Hong Jiao
- a Department of rehabilitation , The People's Hospital of Zhangqiu , Ji'nan , China
| | - Zhen-Mei Gao
- b Department of rehabilitation , Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan , China
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45
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Ohja K, Gozal E, Fahnestock M, Cai L, Cai J, Freedman JH, Switala A, El-Baz A, Barnes GN. Neuroimmunologic and Neurotrophic Interactions in Autism Spectrum Disorders: Relationship to Neuroinflammation. Neuromolecular Med 2018; 20:161-173. [PMID: 29691724 PMCID: PMC5942347 DOI: 10.1007/s12017-018-8488-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 03/28/2018] [Indexed: 12/30/2022]
Abstract
Autism spectrum disorders (ASD) are the most prevalent set of pediatric neurobiological disorders. The etiology of ASD has both genetic and environmental components including possible dysfunction of the immune system. The relationship of the immune system to aberrant neural circuitry output in the form of altered behaviors and communication characterized by ASD is unknown. Dysregulation of neurotrophins such as BDNF and their signaling pathways have been implicated in ASD. While abnormal cortical formation and autistic behaviors in mouse models of immune activation have been described, no one theory has been described to link activation of the immune system to specific brain signaling pathways aberrant in ASD. In this paper we explore the relationship between neurotrophin signaling, the immune system and ASD. To this effect we hypothesize that an interplay of dysregulated immune system, synaptogenic growth factors and their signaling pathways contribute to the development of ASD phenotypes.
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Affiliation(s)
- Kshama Ohja
- Department of Neurology, University of Louisville School of Medicine, Louisville, KY, USA.,Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA
| | - Evelyne Gozal
- Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA
| | - Margaret Fahnestock
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Lu Cai
- Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Jun Cai
- Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA
| | - Jonathan H Freedman
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Andy Switala
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Ayman El-Baz
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Gregory Neal Barnes
- Department of Neurology, University of Louisville School of Medicine, Louisville, KY, USA. .,Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA. .,Spafford Ackerly Chair in Child and Adolescent Psychiatry, University of Louisville Autism Center, 1405 East Burnett Avenue, Louisville, KY, 40217, USA.
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Azimi M, Gharakhanlou R, Naghdi N, Khodadadi D, Heysieattalab S. Moderate treadmill exercise ameliorates amyloid-β-induced learning and memory impairment, possibly via increasing AMPK activity and up-regulation of the PGC-1α/FNDC5/BDNF pathway. Peptides 2018; 102:78-88. [PMID: 29309801 DOI: 10.1016/j.peptides.2017.12.027] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/27/2017] [Accepted: 12/29/2017] [Indexed: 12/16/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder associated with loss of memory and cognitive abilities. Previous evidence suggested that exercise ameliorates learning and memory deficits by increasing brain derived neurotrophic factor (BDNF) and activating downstream pathways in AD animal models. However, upstream pathways related to increase BDNF induced by exercise in AD animal models are not well known. We investigated the effects of moderate treadmill exercise on Aβ-induced learning and memory impairment as well as the upstream pathway responsible for increasing hippocampal BDNF in an animal model of AD. Animals were divided into five groups: Intact, Sham, Aβ1-42, Sham-exercise (Sham-exe) and Aβ1-42-exercise (Aβ-exe). Aβ was microinjected into the CA1 area of the hippocampus and then animals in the exercise groups were subjected to moderate treadmill exercise (for 4 weeks with 5 sessions per week) 7 days after microinjection. In the present study the Morris water maze (MWM) test was used to assess spatial learning and memory. Hippocampal mRNA levels of BDNF, peroxisome proliferator-activated receptor gamma co-activator 1 alpha (PGC-1α), fibronectin type III domain-containing 5 (FNDC5) as well as protein levels of AMPK-activated protein kinase (AMPK), PGC-1α, BDNF, phosphorylation of AMPK were measured. Our results showed that intra-hippocampal injection of Aβ1-42 impaired spatial learning and memory which was accompanied by reduced AMPK activity (p-AMPK/total-AMPK ratio) and suppression of the PGC-1α/FNDC5/BDNF pathway in the hippocampus of rats. In contrast, moderate treadmill exercise ameliorated the Aβ1-42-induced spatial learning and memory deficit, which was accompanied by restored AMPK activity and PGC-1α/FNDC5/BDNF levels. Our results suggest that the increased AMPK activity and up-regulation of the PGC-1α/FNDC5/BDNF pathway by exercise are likely involved in mediating the beneficial effects of exercise on Aβ-induced learning and memory impairment.
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Affiliation(s)
- Mohammad Azimi
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
| | - Reza Gharakhanlou
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran.
| | - Nasser Naghdi
- Department of Physiology and Pharmacology, Pasteur Institute of Iran, 13164, Tehran, Iran
| | - Davar Khodadadi
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
| | - Soomaayeh Heysieattalab
- Cognitive Neuroscience Division, Faculty of Education and Psychology, University of Tabriz, Tabriz, Iran
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Wei ZZ, Zhang JY, Taylor TM, Gu X, Zhao Y, Wei L. Neuroprotective and regenerative roles of intranasal Wnt-3a administration after focal ischemic stroke in mice. J Cereb Blood Flow Metab 2018; 38:404-421. [PMID: 28430000 PMCID: PMC5851145 DOI: 10.1177/0271678x17702669] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 02/27/2017] [Accepted: 03/01/2017] [Indexed: 01/31/2023]
Abstract
Wnt signaling is a conserved pathway involved in expansion of neural progenitors and lineage specification during development. However, the role of Wnt signaling in the post-stroke brain has not been well-elucidated. We hypothesized that Wnt-3a would play an important role for neurogenesis and brain repair. Adult male mice were subjected to a focal ischemic stroke targeting the sensorimotor cortex. Mice that received Wnt-3a (2 µg/kg/day, 1 h after stroke and once a day for the next 2 days, intranasal delivery) had reduced infarct volume compared to stroke controls. Wnt-3a intranasal treatment of seven days upregulated the expression of brain-derived growth factor (BDNF), increased the proliferation and migration of neuroblasts from the subventricular zone (SVZ), resulting in increased numbers of newly formed neurons and endothelial cells in the peri-infarct zone. Both the molecular and cellular effects of Wnt-3a were blocked by the Wnt specific inhibitors XAV-939 or Dkk-1. In functional assays, Wnt-3a treatment enhanced the local cerebral blood flow (LCBF) in the peri-infarct, as well as improved sensorimotor functions in a battery of behavioral tests. Together, our data demonstrates that the Wnt-3a signaling can act as a dual neuroprotective and regenerative factor for the treatment of ischemic stroke.
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Affiliation(s)
- Zheng Zachory Wei
- Laboratories of Stem Cell Biology and Regenerative Medicine, Experimental Research Center and Neurological Disease Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, USA
| | - James Ya Zhang
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, USA
| | - Tammi M Taylor
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, USA
| | - Xiaohuan Gu
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, USA
| | - Yingying Zhao
- Laboratories of Stem Cell Biology and Regenerative Medicine, Experimental Research Center and Neurological Disease Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ling Wei
- Laboratories of Stem Cell Biology and Regenerative Medicine, Experimental Research Center and Neurological Disease Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, USA
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
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Garcia AL, Udeh A, Kalahasty K, Hackam AS. A growing field: The regulation of axonal regeneration by Wnt signaling. Neural Regen Res 2018; 13:43-52. [PMID: 29451203 PMCID: PMC5840987 DOI: 10.4103/1673-5374.224359] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The canonical Wnt/β-catenin pathway is a highly conserved signaling cascade that plays critical roles during embryogenesis. Wnt ligands regulate axonal extension, growth cone guidance and synaptogenesis throughout the developing central nervous system (CNS). Recently, studies in mammalian and fish model systems have demonstrated that Wnt/β-catenin signaling also promotes axonal regeneration in the adult optic nerve and spinal cord after injury, raising the possibility that Wnt could be developed as a therapeutic strategy. In this review, we summarize experimental evidence that reveals novel roles for Wnt signaling in the injured CNS, and discuss possible mechanisms by which Wnt ligands could overcome molecular barriers inhibiting axonal growth to promote regeneration. A central challenge in the neuroscience field is developing therapeutic strategies that induce robust axonal regeneration. Although adult axons have the capacity to respond to axonal guidance molecules after injury, there are several major obstacles for axonal growth, including extensive neuronal death, glial scars at the injury site, and lack of axonal guidance signals. Research in rodents demonstrated that activation of Wnt/β-catenin signaling in retinal neurons and radial glia induced neuronal survival and axonal growth, but that activation within reactive glia at the injury site promoted proliferation and glial scar formation. Studies in zebrafish spinal cord injury models confirm an axonal regenerative role for Wnt/β-catenin signaling and identified the cell types responsible. Additionally, in vitro and in vivo studies demonstrated that Wnt induces axonal and neurite growth through transcription-dependent effects of its central mediator β-catenin, potentially by inducing regeneration-promoting genes. Canonical Wnt signaling may also function through transcription-independent interactions of β-catenin with cytoskeletal elements, which could stabilize growing axons and control growth cone movement. Therefore, these studies suggest that Wnt-induced pathways responsible for regulating axonal growth during embryogenesis could be repurposed to promote axonal growth after injury.
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Affiliation(s)
- Armando L Garcia
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Adanna Udeh
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Karthik Kalahasty
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Abigail S Hackam
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
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Antoniou A, Khudayberdiev S, Idziak A, Bicker S, Jacob R, Schratt G. The dynamic recruitment of TRBP to neuronal membranes mediates dendritogenesis during development. EMBO Rep 2017; 19:embr.201744853. [PMID: 29263199 PMCID: PMC5835843 DOI: 10.15252/embr.201744853] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 11/22/2017] [Accepted: 11/27/2017] [Indexed: 12/22/2022] Open
Abstract
MicroRNAs are important regulators of local protein synthesis during neuronal development. We investigated the dynamic regulation of microRNA production and found that the majority of the microRNA‐generating complex, consisting of Dicer, TRBP, and PACT, specifically associates with intracellular membranes in developing neurons. Stimulation with brain‐derived neurotrophic factor (BDNF), which promotes dendritogenesis, caused the redistribution of TRBP from the endoplasmic reticulum into the cytoplasm, and its dissociation from Dicer, in a Ca2+‐dependent manner. As a result, the processing of a subset of neuronal precursor microRNAs, among them the dendritically localized pre‐miR16, was impaired. Decreased production of miR‐16‐5p, which targeted the BDNF mRNA itself, was rescued by expression of a membrane‐targeted TRBP. Moreover, miR‐16‐5p or membrane‐targeted TRBP expression blocked BDNF‐induced dendritogenesis, demonstrating the importance of neuronal TRBP dynamics for activity‐dependent neuronal development. We propose that neurons employ specialized mechanisms to modulate local gene expression in dendrites, via the dynamic regulation of microRNA biogenesis factors at intracellular membranes of the endoplasmic reticulum, which in turn is crucial for neuronal dendrite complexity and therefore neuronal circuit formation and function.
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Affiliation(s)
- Anna Antoniou
- Institute for Physiological Chemistry, Biochemical-Pharmacological Center Marburg, Philipps-University of Marburg, Marburg, Germany
| | - Sharof Khudayberdiev
- Institute for Physiological Chemistry, Biochemical-Pharmacological Center Marburg, Philipps-University of Marburg, Marburg, Germany
| | - Agata Idziak
- Institute for Physiological Chemistry, Biochemical-Pharmacological Center Marburg, Philipps-University of Marburg, Marburg, Germany
| | - Silvia Bicker
- Institute for Physiological Chemistry, Biochemical-Pharmacological Center Marburg, Philipps-University of Marburg, Marburg, Germany
| | - Ralf Jacob
- Department of Cell Biology and Cell Pathology, Philipps-University of Marburg, Marburg, Germany
| | - Gerhard Schratt
- Institute for Physiological Chemistry, Biochemical-Pharmacological Center Marburg, Philipps-University of Marburg, Marburg, Germany
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Van Kampen JM, Kay DG. Progranulin gene delivery reduces plaque burden and synaptic atrophy in a mouse model of Alzheimer's disease. PLoS One 2017; 12:e0182896. [PMID: 28837568 PMCID: PMC5570501 DOI: 10.1371/journal.pone.0182896] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 07/26/2017] [Indexed: 12/14/2022] Open
Abstract
Progranulin (PGRN) is a multifunctional protein that is widely expressed throughout the brain, where it has been shown to act as a critical regulator of CNS inflammation and also functions as an autocrine neuronal growth factor, important for long-term neuronal survival. PGRN has been shown to activate cell signaling pathways regulating excitoxicity, oxidative stress, and synaptogenesis, as well as amyloidogenesis. Together, these critical roles in the CNS suggest that PGRN has the potential to be an important therapeutic target for the treatment of various neurodegenerative disorders, particularly Alzheimer’s disease (AD). AD is the leading cause of dementia and is marked by the appearance of extracellular plaques consisting of aggregates of amyloid-β (Aβ), as well as neuroinflammation, oxidative stress, neuronal loss and synaptic atrophy. The ability of PGRN to target multiple key features of AD pathophysiology suggests that enhancing its expression may benefit this disease. Here, we describe the application of PGRN gene transfer using in vivo delivery of lentiviral expression vectors in a transgenic mouse model of AD. Viral vector delivery of the PGRN gene effectively enhanced PGRN expression in the hippocampus of Tg2576 mice. This elevated PGRN expression significantly reduced amyloid plaque burden in these mice, accompanied by reductions in markers of inflammation and synaptic atrophy. The overexpression of PGRN was also found to increase activity of neprilysin, a key amyloid beta degrading enzyme. PGRN regulation of neprilysin activity could play a major role in the observed alterations in plaque burden. Thus, PGRN may be an effective therapeutic target for the treatment of AD.
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Affiliation(s)
- Jackalina M. Van Kampen
- Neurodyn Inc., Charlottetown, PE, Canada
- Dept. Biomedical Science, University of Prince Edward Island, Charlottetown, PE, Canada
- Dept. Neuroscience, Mayo Clinic, Jacksonville, FL, United States of America
- * E-mail:
| | - Denis G. Kay
- Neurodyn Inc., Charlottetown, PE, Canada
- Dept. Pathology and Microbiology, University of Prince Edward Island, Charlottetown, PE, Canada
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