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Wang M, Hu S, Fu X, Zhou H, Yang S, Yang C. Neurosteroids: A potential target for neuropsychiatric disorders. J Steroid Biochem Mol Biol 2024; 239:106485. [PMID: 38369032 DOI: 10.1016/j.jsbmb.2024.106485] [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: 01/25/2024] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Neurosteroids are steroids produced by endocrine glands and subsequently entering the brain, and also include steroids synthesis in the brain. It has been widely known that neurosteroids influence many neurological functions, including neuronal signaling, synaptic adaptations, and neuroprotective effects. In addition, abnormality in the synthesis and function of neurosteroids has been closely linked to neuropsychiatric disorders, such as Alzheimer's disease (AD), schizophrenia (SZ), and epilepsy. Given their important role in brain pathophysiology and disorders, neurosteroids offer potential therapeutic targets for a variety of neuropsychiatric diseases, and that therapeutic strategies targeting neurosteroids probably exert beneficial effects. We therefore summarized the role of neurosteroids in brain physiology and neuropsychiatric disorders, and introduced the recent findings of synthetic neurosteroid analogues for potential treatment of neuropsychiatric disorders, thereby providing insights for further research in the future.
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Affiliation(s)
- Mengyu Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Suwan Hu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xinghuo Fu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Huixuan Zhou
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Siqi Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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Chen Q, Guo P, Hong Y, Mo P, Yu C. The multifaceted therapeutic value of targeting steroid receptor coactivator-1 in tumorigenesis. Cell Biosci 2024; 14:41. [PMID: 38553750 PMCID: PMC10979636 DOI: 10.1186/s13578-024-01222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024] Open
Abstract
Steroid receptor coactivator-1 (SRC-1, also known as NCOA1) frequently functions as a transcriptional coactivator by directly binding to transcription factors and recruiting to the target gene promoters to promote gene transcription by increasing chromatin accessibility and promoting the formation of transcriptional complexes. In recent decades, various biological and pathological functions of SRC-1 have been reported, especially in the context of tumorigenesis. SRC-1 is a facilitator of the progression of multiple cancers, including breast cancer, prostate cancer, gastrointestinal cancer, neurological cancer, and female genital system cancer. The emerging multiorgan oncogenic role of SRC-1 is still being studied and may not be limited to only steroid hormone-producing tissues. Growing evidence suggests that SRC-1 promotes target gene expression by directly binding to transcription factors, which may constitute a novel coactivation pattern independent of AR or ER. In addition, the antitumour effect of pharmacological inhibition of SRC-1 with agents including various small molecules or naturally active compounds has been reported, but their practical application in clinical cancer therapy is very limited. For this review, we gathered typical evidence on the oncogenic role of SRC-1, highlighted its major collaborators and regulatory genes, and mapped the potential mechanisms by which SRC-1 promotes primary tumour progression.
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Affiliation(s)
- Qiang Chen
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Affiliated First Hospital of Ningbo University, Ningbo, Zhejiang, 315010, China.
| | - Peng Guo
- Department of Cell Biotechnology Laboratory, Tianjin Cancer Hospital Airport Hospital, Tianjin, 300308, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China
| | - Yilin Hong
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China
| | - Pingli Mo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China
| | - Chundong Yu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China.
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Halász H, Szatmári Z, Kovács K, Koppán M, Papp S, Szabó-Meleg E, Szatmári D. Changes of Ex Vivo Cervical Epithelial Cells Due to Electroporation with JMY. Int J Mol Sci 2023; 24:16863. [PMID: 38069185 PMCID: PMC10706833 DOI: 10.3390/ijms242316863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/20/2023] [Accepted: 11/25/2023] [Indexed: 12/18/2023] Open
Abstract
The ionic environment within the nucleoplasm might diverge from the conditions found in the cytoplasm, potentially playing a role in the cellular stress response. As a result, it is conceivable that interactions of nuclear actin and actin-binding proteins (ABPs) with apoptosis factors may differ in the nucleoplasm and cytoplasm. The primary intracellular stress response is Ca2+ influx. The junctional mediating and regulating Y protein (JMY) is an actin-binding protein and has the capability to interact with the apoptosis factor p53 in a Ca2+-dependent manner, forming complexes that play a regulatory role in cytoskeletal remodelling and motility. JMY's presence is observed in both the cytoplasm and nucleoplasm. Here, we show that ex vivo ectocervical squamous cells subjected to electroporation with JMY protein exhibited varying morphological alterations. Specifically, the highly differentiated superficial and intermediate cells displayed reduced nuclear size. In inflamed samples, nuclear enlargement and simultaneous cytoplasmic reduction were observable and showed signs of apoptotic processes. In contrast, the less differentiated parabasal and metaplastic cells showed increased cytoplasmic activity and the formation of membrane protrusions. Surprisingly, in severe inflammation, vaginosis or ASC-US (Atypical Squamous Cells of Undetermined Significance), JMY appears to influence only the nuclear and perinuclear irregularities of differentiated cells, and cytoplasmic abnormalities still existed after the electroporation. Our observations can provide an appropriate basis for the exploration of the relationship between cytopathologically relevant morphological changes of epithelial cells and the function of ABPs. This is particularly important since ABPs are considered potential diagnostic and therapeutic biomarkers for both cancers and chronic inflammation.
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Affiliation(s)
- Henriett Halász
- Department of Biophysics, Medical School, University of Pécs, 7624 Pécs, Hungary; (H.H.); (E.S.-M.)
| | | | - Krisztina Kovács
- Department of Pathology, Medical School, University of Pécs, 7624 Pécs, Hungary;
| | | | - Szilárd Papp
- DaVinci Clinics, 7635 Pécs, Hungary; (M.K.); (S.P.)
| | - Edina Szabó-Meleg
- Department of Biophysics, Medical School, University of Pécs, 7624 Pécs, Hungary; (H.H.); (E.S.-M.)
| | - Dávid Szatmári
- Department of Biophysics, Medical School, University of Pécs, 7624 Pécs, Hungary; (H.H.); (E.S.-M.)
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MenezesdaSilva GM, Veiga ECDA, Simões MJ, Simões RS, Shiroma ME, Baracat MCP, Cavalcanti GS, Junior JMS, Baracat EC. Effects of estrogen and raloxifene on synaptic density in the hippocampal CA1 region of ovariectomized rats. Clinics (Sao Paulo) 2023; 78:100312. [PMID: 38016196 PMCID: PMC10698248 DOI: 10.1016/j.clinsp.2023.100312] [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: 07/24/2023] [Revised: 10/11/2023] [Accepted: 11/06/2023] [Indexed: 11/30/2023] Open
Abstract
INTRODUCTION The CA1 region of the hippocampus has an important role in learning and memory. It has been shown that estrogen deficiency may reduce the synaptic density in the region and that hormone replacement therapy may attenuate the reduction. OBJECTIVES This study aimed to evaluate the effects of estrogen and raloxifene on the synaptic density profile in the CA1 region of the hippocampus in ovariectomized rats. METHODS Sixty ovariectomized three-month-old virgin rats were randomized into six groups (n = 10). Treatments started either three days (early treatment) or sixty days (late treatment) after ovariectomy. The groups received propylene glycol vehicle (0.5 mL/animal/day), equine conjugated estrogens (50 μg/animal/day), or raloxifene (3 mg/kg/day) either early or late after ovariectomy. The drugs were administered orally by gavage for 30 days. At the end of the treatments, the animals were anesthetized and transcardially perfused with ether and saline solution. The brains were removed and prepared for analysis under transmission electron microscopy and later fixed. RESULTS Results showed a significant increase in the synaptic density profile of the hippocampal CA1 region in both the early estrogen (0.534 ± 0.026 µ/m2) and the early raloxifene (0.437 ± 0.012 µ/m2) treatment groups compared to the early or late vehicle-treated control groups (0.338 ± 0.038 µ/m2 and 0.277 ± 0.015 µ/m2 respectively). CONCLUSIONS The present data suggest that the raloxifene effect may be lower than that of estrogen, even early or late treatment, on synaptic density in the hippocampus.
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Affiliation(s)
- Glaucia Mara MenezesdaSilva
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Eduardo Carvalho de Arruda Veiga
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil.
| | - Manuel Jesus Simões
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil; Disciplina de Histologia e Biologia Celular do Departamento de Morfologia da Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Ricardo Santos Simões
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Marcos Eiji Shiroma
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Maria Cândida Pinheiro Baracat
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Givanna Santos Cavalcanti
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Jose Maria Soares Junior
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Edmund Chada Baracat
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
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Li N, Duan YH, Chen L, Zhang K. Iron metabolism: An emerging therapeutic target underlying the anti-Alzheimer's disease effect of ginseng. J Trace Elem Med Biol 2023; 79:127252. [PMID: 37418790 DOI: 10.1016/j.jtemb.2023.127252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 06/05/2023] [Accepted: 06/22/2023] [Indexed: 07/09/2023]
Abstract
Finding neuroprotective drugs with fewer side effects and more efficacy has become a major problem as the global prevalence of Alzheimer's disease (AD) rises. Natural drugs have risen to prominence as potential medication candidates. Ginseng has a long history of use in China, and it has a wide range of pharmacological actions that can help with neurological issues. Iron loaded in the brain has been linked to AD pathogenesis. We reviewed the regulation of iron metabolism and its studies in AD and explored how ginseng might regulate iron metabolism and prevent or treat AD. Researchers utilized network pharmacology analysis to identify key factive components of ginseng that protect against AD by regulating ferroptosis. Ginseng and its active ingredients may benefit AD by regulating iron metabolism and targeting ferroptosis genes to inhibit the ferroptosis process. The results present new ideas for ginseng pharmacological studies and initiatives for further research into AD-related drugs. To provide comprehensive information on the neuroprotective use of ginseng to modulate iron metabolism, reveal its potential to treat AD, and provide insights for future research opportunities.
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Affiliation(s)
- Nan Li
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Yu-Han Duan
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Lei Chen
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Kun Zhang
- Department of Medical Research Center, The Second Hospital of Jilin University, Changchun, China.
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Tecalco-Cruz AC, López-Canovas L, Azuara-Liceaga E. Estrogen signaling via estrogen receptor alpha and its implications for neurodegeneration associated with Alzheimer's disease in aging women. Metab Brain Dis 2023; 38:783-793. [PMID: 36640216 DOI: 10.1007/s11011-023-01161-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023]
Abstract
Estrogen receptor alpha (ERα) is a transcription factor activated by estrogenic hormones to regulate gene expression in certain organs, including the brain. In the brain, estrogen signaling pathways are central for maintaining cognitive functions. Herein, we review the neuroprotective effects of estrogens mediated by ERα. The estrogen/ERα pathways are affected by the reduction of estrogens in menopause, and this event may be a risk factor for neurodegeneration associated with Alzheimer's disease in women. Thus, developing a better understanding of estrogen/ERα signaling may be critical for defining new biomarkers and potential therapeutic targets for Alzheimer's disease in women.
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Affiliation(s)
- Angeles C Tecalco-Cruz
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México (UACM), Apdo, Postal 03100, Ciudad de México, Mexico.
| | - Lilia López-Canovas
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México (UACM), Apdo, Postal 03100, Ciudad de México, Mexico
| | - Elisa Azuara-Liceaga
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México (UACM), Apdo, Postal 03100, Ciudad de México, Mexico
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Cheng L, Wang F, Li ZH, Wen C, Ding L, Zhang SB, You QY. Study on the active components and mechanism of Suanzaoren decoction in improving cognitive impairment caused by sleep deprivation. JOURNAL OF ETHNOPHARMACOLOGY 2022; 296:115502. [PMID: 35777606 DOI: 10.1016/j.jep.2022.115502] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/09/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Suanzaoren Decoction (SZRD) is a traditional and classic prescription for the treatment of insomnia, with a history of more than 1,000 years. It replenishes blood components, calms the nerves, reduces fever and irritability. It is commonly used in the clinical treatment of chronic fatigue syndrome, cardiac neurosis, and menopausal syndromes. Modern pharmacological studies have shown that it improves cognitive impairment; however, its mechanism of action remains unclear. AIM OF THE STUDY This study preliminarily investigated the potential bioactive components and mechanism of SZRD in improving cognitive impairment by exploring network pharmacology, molecular docking, and conducting in vivo experiments. MATERIALS AND METHODS The components of various Chinese herbs in SZRD and their disease-related targets were identified through network pharmacology and literature. Gene ontology (GO) function enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses of intersection targets were performed using the relevant database. Next, the "Components-Targets-Pathways" (C-T-P) and "Protein-Protein interaction" networks were constructed using the enrichment analysis results to further identify potential pathways, bioactive components, and hub genes. At the same time, molecular docking was used to further distinguish the key bioactive components and genes of SZRD responsible for improving cognitive impairment. Finally, the potential mechanism of action was further analysed and verified using in vivo experiments. RESULTS A total of 117 potential active components and 138 intersection targets were identified by network pharmacology screening. The key bioactive components, including calycosin, 5-Prenylbutein, licochalcone G, glypallichalcone, and ZINC189892, were identified by analysing the networks and molecular docking results. Hub genes included ACHE, CYP19A1, EGFR, ESR1, and ESR2. The oestrogen signalling pathway was the most important in the enrichment analysis. In vivo experiments further proved that SZRD could improve cognitive impairment by affecting the oestrogen signalling pathway and the expression of ACHE and CYP19A1. CONCLUSIONS Network pharmacology and in vivo experiments demonstrate that SZRD improves cognitive impairment caused by sleep disturbance through estrogen receptor pathway, which provides a basis for its clinical application.
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Affiliation(s)
- Li Cheng
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China.
| | - Fei Wang
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China.
| | - Zi-Heng Li
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China.
| | - Chun Wen
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China.
| | - Li Ding
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China.
| | - Shun-Bo Zhang
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China.
| | - Qiu-Yun You
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China.
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Liu M, Lian B, Lan Z, Sun H, Zhao Y, Sun T, Meng Z, Zhao C, Zhang J. Transcriptomic Profile Identifies Hippocampal Sgk1 as the Key Mediator of Ovarian Estrogenic Regulation on Spatial Learning and Memory and Aβ Accumulation. Neurochem Res 2022; 47:3369-3384. [PMID: 35915371 DOI: 10.1007/s11064-022-03690-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/14/2022] [Accepted: 07/12/2022] [Indexed: 11/28/2022]
Abstract
Previous studies have shown that ovarian estrogens are involved in the occurrence and pathology of Alzheimer's disease (AD) through regulation on hippocampal synaptic plasticity and spatial memory; however, the underlying mechanisms have not yet been elucidated at the genomic scale. In this study, we established the postmenopausal estrogen-deficient model by ovariectomy (OVX). Then, we used high-throughput Affymetrix Clariom transcriptomics and found 143 differentially expressed genes in the hippocampus of OVX mice with the absolute fold change ≥ 1.5 and P < 0.05. GO analysis showed that the highest enrichment was seen in long-term memory. Combined with the response to steroid hormone enrichment and GeneMANIA network prediction, the serum and glucocorticoid-regulated kinase 1 gene (Sgk1) was found to be the most potent candidate for ovarian estrogenic regulation. Sgk1 overexpression viral vectors (oSgk1) were then constructed and injected into the hippocampus of OVX mice. Morris water maze test revealed that the impaired spatial learning and memory induced by OVX was rescued by Sgk1 overexpression. Additionally, the altered expression of synaptic proteins and actin remodeling proteins and changes in CA1 spine density and synapse density induced by OVX were also significantly reversed by oSgk1. Moreover, the OVX-induced increase in Aβ-producing BACE1 and Aβ and the decrease in insulin degrading enzyme were significantly reversed by oSgk1. The above results show that multiple pathways and genes are involved in ovarian estrogenic regulation of the function of the hippocampus, among which Sgk1 may be a novel potent target against estrogen-sensitive hippocampal dysfunctions, such as Aβ-initiated AD.
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Affiliation(s)
- Mengying Liu
- The 305 Hospital of PLA, Beijing, 100017, China.,Department of Neurobiology, Army Medical University, Chongqing, 400038, China
| | - Biyao Lian
- Department of Pediatrics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, China.,Department of Human Anatomy and Tissue Embryology, Ningxia Medical University, Yinchuan, 750004, China
| | - Zhen Lan
- Department of Neurobiology, Army Medical University, Chongqing, 400038, China
| | - Huan Sun
- Department of Neurobiology, Army Medical University, Chongqing, 400038, China.,Center for Brain Science, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yangang Zhao
- Department of Neurology, Hainan Hospital of PLA General Hospital, Sanya, 572013, China
| | - Tao Sun
- Department of Neurobiology, Army Medical University, Chongqing, 400038, China
| | - Zhaoyou Meng
- Department of Neurobiology, Army Medical University, Chongqing, 400038, China
| | - Chengjun Zhao
- Department of Human Anatomy and Tissue Embryology, Ningxia Medical University, Yinchuan, 750004, China. .,Medical Sci-Tech Research Center, Ningxia Medical University, Yinchuan, 750004, China.
| | - Jiqiang Zhang
- Department of Neurobiology, Army Medical University, Chongqing, 400038, China.
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Feng Y, Shi R, Hu J, Lou S. Effects of neural-derived estradiol on actin polymerization and synaptic plasticity-related proteins in prefrontal and hippocampal cells of mice. Steroids 2022; 177:108935. [PMID: 34715132 DOI: 10.1016/j.steroids.2021.108935] [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: 05/22/2021] [Revised: 10/07/2021] [Accepted: 10/13/2021] [Indexed: 10/20/2022]
Abstract
Neural-derived 17β-estradiol (E2) plays an important role in the synaptic plasticity of the hippocampus and prefrontal cortex, but the mechanism is not well defined. This study was designed to explore the effect and mechanism of neural-derived E2 on synaptic plasticity of the hippocampus and prefrontal cortex. Primary cultured hippocampal and prefrontal cells in mice were randomly divided into the DMSO (D), aromatase (Rate-limiting enzymes for E2 synthesizes) inhibitor letrozole (L), and ERs antagonist (MPG) treated groups. After intervention for 48 h, the cell was collected, and then, the expressions of AMPA-receptor subunit GluR1 (GluR1), synaptophysin (SYN), p-21-Activated kinase (PAK) phosphorylation, Rho kinase (ROCK), p-Cofilin, F-actin, and G-actin proteins were detected. Letrozole or ER antagonists inhibited the expression of GluR1, F-actin/G-actin, p-PAK and p-Cofilin proteins in prefrontal cells significantly. And the expressions of GluR1 and F-actin/G-actin proteins were declined in hippocampal cells markedly after adding letrozole or ERs antagonists. In conclusion, neural-derived E2 and ERs regulated the synaptic plasticity, possibly due to promoting actin polymerization in prefrontal and hippocampal cells. The regional specificity in the effect of neural-derived E2 and ERs on the actin polymerization-related pathway may provide a theoretical basis for the functional differences between the hippocampus and prefrontal cortex.
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Affiliation(s)
- Yu Feng
- Shanghai University of Sport, Kinesiology, Shanghai, China
| | - Rengfei Shi
- Shanghai University of Sport, Kinesiology, Shanghai, China
| | - Jingyun Hu
- Shanghai University of Sport, Kinesiology, Shanghai, China
| | - Shujie Lou
- Shanghai University of Sport, Kinesiology, Shanghai, China.
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Brann DW, Lu Y, Wang J, Sareddy GR, Pratap UP, Zhang Q, Tekmal RR, Vadlamudi RK. Neuron-Derived Estrogen-A Key Neuromodulator in Synaptic Function and Memory. Int J Mol Sci 2021; 22:ijms222413242. [PMID: 34948039 PMCID: PMC8706511 DOI: 10.3390/ijms222413242] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/29/2021] [Accepted: 12/04/2021] [Indexed: 01/31/2023] Open
Abstract
In addition to being a steroid hormone, 17β-estradiol (E2) is also a neurosteroid produced in neurons in various regions of the brain of many species, including humans. Neuron-derived E2 (NDE2) is synthesized from androgen precursors via the action of the biosynthetic enzyme aromatase, which is located at synapses and in presynaptic terminals in neurons in both the male and female brain. In this review, we discuss evidence supporting a key role for NDE2 as a neuromodulator that regulates synaptic plasticity and memory. Evidence supporting an important neuromodulatory role of NDE2 in the brain has come from studies using aromatase inhibitors, aromatase overexpression in neurons, global aromatase knockout mice, and the recent development of conditional forebrain neuron-specific knockout mice. Collectively, these studies demonstrate a key role of NDE2 in the regulation of synapse and spine density, efficacy of excitatory synaptic transmission and long-term potentiation, and regulation of hippocampal-dependent recognition memory, spatial reference memory, and contextual fear memory. NDE2 is suggested to achieve these effects through estrogen receptor-mediated regulation of rapid kinase signaling and CREB-BDNF signaling pathways, which regulate actin remodeling, as well as transcription, translation, and transport of synaptic proteins critical for synaptic plasticity and function.
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Affiliation(s)
- Darrell W. Brann
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA;
- Correspondence:
| | - Yujiao Lu
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA;
| | - Jing Wang
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA;
| | - Gangadhara R. Sareddy
- Department of Obstetrics and Gynecology, University of Texas Health, San Antonio, TX 78229, USA; (G.R.S.); (U.P.P.); (R.R.T.); (R.K.V.)
| | - Uday P. Pratap
- Department of Obstetrics and Gynecology, University of Texas Health, San Antonio, TX 78229, USA; (G.R.S.); (U.P.P.); (R.R.T.); (R.K.V.)
| | - Quanguang Zhang
- Department of Neurology, Louisiana State University Health, Shreveport, LA 71103, USA;
| | - Rajeshwar R. Tekmal
- Department of Obstetrics and Gynecology, University of Texas Health, San Antonio, TX 78229, USA; (G.R.S.); (U.P.P.); (R.R.T.); (R.K.V.)
| | - Ratna K. Vadlamudi
- Department of Obstetrics and Gynecology, University of Texas Health, San Antonio, TX 78229, USA; (G.R.S.); (U.P.P.); (R.R.T.); (R.K.V.)
- Audie L. Murphy Division, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
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11
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Brann DW, Lu Y, Wang J, Zhang Q, Thakkar R, Sareddy GR, Pratap UP, Tekmal RR, Vadlamudi RK. Brain-derived estrogen and neural function. Neurosci Biobehav Rev 2021; 132:793-817. [PMID: 34823913 PMCID: PMC8816863 DOI: 10.1016/j.neubiorev.2021.11.014] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/26/2021] [Accepted: 11/12/2021] [Indexed: 01/02/2023]
Abstract
Although classically known as an endocrine signal produced by the ovary, 17β-estradiol (E2) is also a neurosteroid produced in neurons and astrocytes in the brain of many different species. In this review, we provide a comprehensive overview of the localization, regulation, sex differences, and physiological/pathological roles of brain-derived E2 (BDE2). Much of what we know regarding the functional roles of BDE2 has come from studies using specific inhibitors of the E2 synthesis enzyme, aromatase, as well as the recent development of conditional forebrain neuron-specific and astrocyte-specific aromatase knockout mouse models. The evidence from these studies support a critical role for neuron-derived E2 (NDE2) in the regulation of synaptic plasticity, memory, socio-sexual behavior, sexual differentiation, reproduction, injury-induced reactive gliosis, and neuroprotection. Furthermore, we review evidence that astrocyte-derived E2 (ADE2) is induced following brain injury/ischemia, and plays a key role in reactive gliosis, neuroprotection, and cognitive preservation. Finally, we conclude by discussing the key controversies and challenges in this area, as well as potential future directions for the field.
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Affiliation(s)
- Darrell W Brann
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA.
| | - Yujiao Lu
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Jing Wang
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Quanguang Zhang
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Roshni Thakkar
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Gangadhara R Sareddy
- Department of Obstetrics and Gynecology, University of Texas Health, San Antoio TX, 78229, USA
| | - Uday P Pratap
- Department of Obstetrics and Gynecology, University of Texas Health, San Antoio TX, 78229, USA
| | - Rajeshwar R Tekmal
- Department of Obstetrics and Gynecology, University of Texas Health, San Antoio TX, 78229, USA
| | - Ratna K Vadlamudi
- Department of Obstetrics and Gynecology, University of Texas Health, San Antoio TX, 78229, USA; Audie L. Murphy Division, South Texas Veterans Health Care System, San Antonio, TX, 78229, USA.
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12
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Godó S, Barabás K, Lengyel F, Ernszt D, Kovács T, Kecskés M, Varga C, Jánosi TZ, Makkai G, Kovács G, Orsolits B, Fujiwara T, Kusumi A, Ábrahám IM. Single-Molecule Imaging Reveals Rapid Estradiol Action on the Surface Movement of AMPA Receptors in Live Neurons. Front Cell Dev Biol 2021; 9:708715. [PMID: 34631701 PMCID: PMC8495425 DOI: 10.3389/fcell.2021.708715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 09/07/2021] [Indexed: 01/04/2023] Open
Abstract
Gonadal steroid 17β-estradiol (E2) exerts rapid, non-genomic effects on neurons and strictly regulates learning and memory through altering glutamatergic neurotransmission and synaptic plasticity. However, its non-genomic effects on AMPARs are not well understood. Here, we analyzed the rapid effect of E2 on AMPARs using single-molecule tracking and super-resolution imaging techniques. We found that E2 rapidly decreased the surface movement of AMPAR via membrane G protein-coupled estrogen receptor 1 (GPER1) in neurites in a dose-dependent manner. The cortical actin network played a pivotal role in the GPER1 mediated effects of E2 on the surface mobility of AMPAR. E2 also decreased the surface movement of AMPAR both in synaptic and extrasynaptic regions on neurites and increased the synaptic dwell time of AMPARs. Our results provide evidence for understanding E2 action on neuronal plasticity and glutamatergic neurotransmission at the molecular level.
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Affiliation(s)
- Soma Godó
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Klaudia Barabás
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Ferenc Lengyel
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Dávid Ernszt
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Tamás Kovács
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Miklós Kecskés
- PTE-NAP Cortical Microcircuits Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, Pécs, Hungary
| | - Csaba Varga
- PTE-NAP Cortical Microcircuits Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, Pécs, Hungary
| | - Tibor Z Jánosi
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Géza Makkai
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Gergely Kovács
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
| | - Barbara Orsolits
- Laboratory of Neuroimmunology, Institute of Experimental Medicine of the Hungarian Academy of Sciences, Budapest, Hungary
| | - Takahiro Fujiwara
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Kyoto, Japan
| | - Akihiro Kusumi
- Membrane Cooperativity Unit, Okinawa Institute of Science and Technology Graduate University (OIST), Onna, Japan
| | - István M Ábrahám
- PTE-NAP Molecular Neuroendocrinology Research Group, Centre for Neuroscience, Szentágothai Research Center, Medical School, Institute of Physiology, University of Pécs, Pécs, Hungary
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13
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Igarashi K, Kuchiiwa T, Kuchiiwa S, Iwai H, Tomita K, Sato T. Kamishoyosan (a Japanese traditional herbal formula), which effectively reduces the aggressive biting behavior of male and female mice, and potential regulation through increase of Tph1, Tph2, and Esr2 mRNA levels. Brain Res 2021; 1768:147580. [PMID: 34260963 DOI: 10.1016/j.brainres.2021.147580] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 06/23/2021] [Accepted: 07/06/2021] [Indexed: 01/29/2023]
Abstract
Kamishoyosan (KSS), a Japanese traditional herbal formula, is used to treat symptoms related to the autonomic nervous system in men and women; it is especially known for improving the symptoms of irritability (e.g., bad temper and persistent anger). Although clinical and ethological studies of KSS have been conducted, its efficacy in reducing irritability remains to be validated. In the present study, male and female ddY-strain mice were isolation-reared for 8 weeks (from the third postnatal week) to induce pathologically aggressive biting behavior (ABB), which was used as an indicator of irritability. The ABB of mice toward metal rods was measured using the Aggressive Response Meter. An intraperitoneal administration of KSS (100 mg/kg) effectively reduced ABB in male and female mice at 2 h after the administration; however, this effect was canceled by prior administration of WAY-100635 [a 5-hydroxytryptoamine (5-HT)-1A receptor antagonist; 0.5 mg/kg] and bicuculline (a type-A gamma-aminobutyric acid receptor antagonist; 1.0 mg/kg). Additionally, tamoxifen, ICI-182780, and G-15 (all estrogen receptor antagonists) inhibited the action of KSS in a dose-dependent manner. Furthermore, gene expression of tryptophan hydroxylase (Tph) 1 and Tph2 were increased and 5-HT immunofluorescence was slightly increased in the dorsal raphe nucleus (DRN) of isolation-reared mice administered with KSS. Collectively, these results indicate that KSS effectively reduces ABB in isolation-reared male and female mice through stimulation of 5-HT production in the DRN. Our findings also suggest that gene expression of estrogen receptor (Esr) 2 increased in the DRN might be associated with the reduction of ABB.
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Affiliation(s)
- Kento Igarashi
- Department of Applied Pharmacology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Toshiko Kuchiiwa
- Department of Clinical Psychology, Graduate School of Human Science, Kagoshima Immaculate Herat University, 2365 Amatatsu-Cho, Satsuma-Sendai 895-0011, Japan; Department of Morphological Science, Field of Neurology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Satoshi Kuchiiwa
- Department of Morphological Science, Field of Neurology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Haruki Iwai
- Department of Oral Anatomy and Cell Biology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Kazuo Tomita
- Department of Applied Pharmacology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Tomoaki Sato
- Department of Applied Pharmacology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
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14
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Meng Z, Wang X, Zhang D, Lan Z, Cai X, Bian C, Zhang J. Steroid receptor coactivator-1: The central intermediator linking multiple signals and functions in the brain and spinal cord. Genes Dis 2021; 9:1281-1289. [PMID: 35873031 PMCID: PMC9293692 DOI: 10.1016/j.gendis.2021.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/31/2021] [Accepted: 06/21/2021] [Indexed: 11/28/2022] Open
Abstract
The effects of steroid hormones are believed to be mediated by their nuclear receptors (NRs). The p160 coactivator family, including steroid receptor coactivator-1 (SRC-1), 2 and 3, has been shown to physically interact with NRs to enhance their transactivational activities. Among which SRC-1 has been predominantly localized in the central nervous system including brain and spinal cord. It is not only localized in neurons but also detectable in neuroglial cells (mainly localized in the nuclei but also detectable in the extra-nuclear components). Although the expression of SRC-1 is regulated by many steroids, it is also regulated by some non-steroidal factors such as injury, sound and light. Functionally, SRC-1 has been implied in normal function such as development and ageing, learning and memory, central regulation on reproductive behaviors, motor and food intake. Pathologically, SRC-1 may play a role in the regulation of neuropsychiatric disorders (including stress, depression, anxiety, and autism spectrum disorder), metabolite homeostasis and obesity as well as tumorigenesis. Under most conditions, the related mechanisms are far from elucidation; although it may regulate spatial memory through Rictor/mTORC2-actin polymerization related synaptic plasticity. Several inhibitors and stimulator of SRC-1 have shown anti-cancer potentials, but whether these small molecules could be used to modulate ageing and central disorder related neuropathology remain unclear. Therefore, to elucidate when and how SRC-1 is turned on and off under different stimuli is very interesting and great challenge for neuroscientists.
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Affiliation(s)
- Zhaoyou Meng
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
| | - Xiaoya Wang
- Department of Neurosurgery, Nanchong Central Hospital, the Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan 637000, PR China
| | - Dongmei Zhang
- Department of Dermatology, Southwest Hospital, Army Medical University, Chongqing 400038, PR China
| | - Zhen Lan
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
| | - Xiaoxia Cai
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
- School of Life Sciences, Southwest University, Chongqing 400715, PR China
| | - Chen Bian
- School of Psychology, Amy Medical University, Chongqing 400038, PR China
- Corresponding author.
| | - Jiqiang Zhang
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
- Corresponding author.
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15
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Fujii T, Ogasawara M, Kamishikiryo J, Morita T. β-Estradiol Enhanced Secretion of Lipoprotein Lipase from Mouse Mammary Tumor FM3A Cells. Biol Pharm Bull 2021; 43:1407-1412. [PMID: 32879215 DOI: 10.1248/bpb.b20-00408] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The role of β-estradiol (E2) in lipoprotein metabolism in mammary tumors is unclear, therefore, we investigated the effect of E2 on the secretion of lipoprotein lipase (LPL) from mouse mammary tumor FM3A cells. E2-treated cells increased the secretion of active LPL from FM3A cells in a time- and dose-dependent manner. Activity of mitogen-activated protein kinase (MAPK) was increased in the tumor cells treated with E2, and enhanced secretion of LPL was suppressed by MAPK kinase 1/2 inhibitor, PD98059, extracellular signal-regulated kinase (ERK) 1/2 inhibitor, FR180204, p38 MAPK inhibitor, SB202190, and phosphatidyl inositol 3-kinase (PI3K) inhibitor, LY294002. In addition, the effect of E2 on LPL secretion was markedly suppressed by an inhibitor of mammalian target of rapamycin complex (mTORC) 1 and 2, KU0063794, but were not by a mTORC1 inhibitor, rapamycin. Furthermore, a small interfering RNA (siRNA)-mediated decrease in the expression of rapamycin-insensitive companion of mTOR (Rictor), a pivotal component of mTORC2, suppressed secretion of LPL by E2. These results suggest that the stimulatory secretion of LPL by E2 from the tumor cells is closely associated with an activation of mTORC2 rather than mTORC1 possibly via the MAPK cascade.
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Affiliation(s)
- Tomoyasu Fujii
- Department of Biochemistry, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
| | - Mizuho Ogasawara
- Department of Biochemistry, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University.,Department of Pharmacy, Kochi Health Sciences Center
| | - Jun Kamishikiryo
- Department of Biochemistry, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
| | - Tetsuo Morita
- Department of Biochemistry, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
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16
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Lan Z, Meng Z, Lian B, Liu M, Sun T, Sun H, Liu Z, Hu Z, Guo Q, Zhang J. Hippocampal Aromatase Knockdown Aggravates Ovariectomy-Induced Spatial Memory Impairment, Aβ Accumulation and Neural Plasticity Deficiency in Adult Female Mice. Neurochem Res 2021; 46:1188-1202. [PMID: 33559105 DOI: 10.1007/s11064-021-03258-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 01/12/2021] [Accepted: 01/22/2021] [Indexed: 12/23/2022]
Abstract
Ovarian estrogens (mainly 17β estradiol, E2) have been involved in the regulation of the structure of hippocampus, the center of spatial memory. In recent years, high levels of aromatase (AROM), the estrogen synthase, has been localized in hippocampus; and this hippocampus-derived E2 seems to be functional in synaptic plasticity and spatial memory as ovarian E2 does. However, the contribution of ovarian E2 and hippocampal E2 to spatial memory and neural plasticity remains unclear. In this study, AROM-specific RNA interference AAVs (shAROM) were constructed and injected into the hippocampus of control or ovariectomized (OVX) mice. Four weeks later the spatial learning and memory behavior was examined with Morris water maze, the expression of hippocampal Aβ related proteins, selected synaptic proteins and CA1 synapse density, actin polymerization related proteins and CA1 spine density were also examined. The results showed that while OVX and hippocampal shAROM contributed similarly to most of the parameters examined, shAROM induced more increase in BACE1 (amyloidogenic β-secretase), more decrease in neprilysin (Aβ remover) and Profilin-1 (actin polymerization inducer). More importantly, combined OVX and shAROM treatment displayed most significant impairment of spatial learning and memory as well as decrease in synaptic plasticity compared to OVX or shAROM alone. In conclusion, the above results clearly demonstrated the crucial role of hippocampal E2 in the regulation of the structure and function of hippocampus besides ovarian E2, indicating that hippocampal E2 content should also be taken into consideration during estrogenic replacement.
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Affiliation(s)
- Zhen Lan
- Department of Neurobiology, Army Medical University, Chongqing, China
| | - Zhaoyou Meng
- Department of Neurobiology, Army Medical University, Chongqing, China
| | - Biyao Lian
- Department of Neurobiology, Army Medical University, Chongqing, China
- Department of Pediatrics, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Mengying Liu
- Department of Neurobiology, Army Medical University, Chongqing, China
- The 305 Hospital of PLA, Beijing, China
| | - Tao Sun
- Department of Neurobiology, Army Medical University, Chongqing, China
- The 63650 Hospital of PLA, Malan, China
| | - Huan Sun
- Department of Neurobiology, Army Medical University, Chongqing, China
- Center for Brain Science, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhi Liu
- Department of Histology and Embryology, Army Medical University, Chongqing, China
| | - Zhenxin Hu
- Battalion One of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Qiang Guo
- Department of Basic Medicine, Chongqing Medical and Pharmaceutical College, Chongqing, China.
| | - Jiqiang Zhang
- Department of Neurobiology, Army Medical University, Chongqing, China.
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17
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Taxier LR, Gross KS, Frick KM. Oestradiol as a neuromodulator of learning and memory. Nat Rev Neurosci 2020; 21:535-550. [PMID: 32879508 DOI: 10.1038/s41583-020-0362-7] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2020] [Indexed: 12/24/2022]
Abstract
Although hormones such as glucocorticoids have been broadly accepted in recent decades as general neuromodulators of memory processes, sex steroid hormones such as the potent oestrogen 17β-oestradiol have been less well recognized by the scientific community in this capacity. The predominance of females in studies of oestradiol and memory and the general (but erroneous) perception that oestrogens are 'female' hormones have probably prevented oestradiol from being more widely considered as a key memory modulator in both sexes. Indeed, although considerable evidence supports a crucial role for oestradiol in regulating learning and memory in females, a growing body of literature indicates a similar role in males. This Review discusses the mechanisms of oestradiol signalling and provides an overview of the effects of oestradiol on spatial, object recognition, social and fear memories. Although the primary focus is on data collected in females, effects of oestradiol on memory in males will be discussed, as will sex differences in the molecular mechanisms that regulate oestrogenic modulation of memory, which may have important implications for the development of future cognitive therapeutics.
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Affiliation(s)
- Lisa R Taxier
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Kellie S Gross
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Karyn M Frick
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
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18
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Wu Q, Wang B, Li QF, Zhang X, Ntim M, Wu XF, Li N, Zhu DD, Jiang R, Yang JY, Yuan YH, Li S. SRC-1 Knockout Exerts No Effect on Amyloid β Deposition in APP/PS1 Mice. Front Aging Neurosci 2020; 12:145. [PMID: 32625077 PMCID: PMC7311769 DOI: 10.3389/fnagi.2020.00145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 04/29/2020] [Indexed: 01/25/2023] Open
Abstract
Steroid receptor coactivator 1 (SRC-1) is the key coactivator because of its transcriptional activity. Previous studies have shown that SRC-1 is abundant in the hippocampus and has been implicated in cognition. SRC-1 is also related to some major risk factors for Alzheimer’s disease (AD), such as a decline in estrogen and aging, however, whether SRC-1 is involved in the pathogenesis of AD remains unclear. In this study, we established SRC-1 knockout in AD mice by cross breeding SRC-1−/− mutant mice with APP/PS1 transgenic mice, and investigated the expression of some synaptic proteins, the amyloid β (Aβ) deposition, and activation of astrocytes and microglia in the hippocampus of APP/PS1×SRC-1−/− mice. The results showed that SRC-1 knockout neither affects the Aβ plaque and activation of glia, nor changes the expression of synaptic proteins in AD model mice. The above results suggest that the complete deletion of SRC-1 in the embryo exerts no effect on the pathogenesis of APP/PS1 mice. Nevertheless, this study could not eliminate the possible role of SRC-1 in the development of AD due to the lack of observation of other events in AD such as tau hyperphosphorylation and the limitation of the animal model employed.
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Affiliation(s)
- Qiong Wu
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Bin Wang
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Qi-Fa Li
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Xuan Zhang
- National-Local Joint Engineering Research Center for Drug-Research and Development (R and D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China
| | - Michael Ntim
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Xue-Fei Wu
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Na Li
- National-Local Joint Engineering Research Center for Drug-Research and Development (R and D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China
| | - Dan-Dan Zhu
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Rong Jiang
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jin-Yi Yang
- Department of Urology, Affiliated Dalian Friendship Hospital of Dalian Medical University, Dalian, China
| | - Yu-Hui Yuan
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Shao Li
- Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
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19
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Acosta-Martínez M. Shaping Microglial Phenotypes Through Estrogen Receptors: Relevance to Sex-Specific Neuroinflammatory Responses to Brain Injury and Disease. J Pharmacol Exp Ther 2020; 375:223-236. [DOI: 10.1124/jpet.119.264598] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 05/05/2020] [Indexed: 12/16/2022] Open
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20
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Zheng Y, Yuan J, Gu Z, Yang G, Li T, Chen J. Transcriptome alterations in female Daphnia (Daphnia magna) exposed to 17β-estradiol. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114208. [PMID: 32097791 DOI: 10.1016/j.envpol.2020.114208] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/08/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
The molecular mechanism of evaluating 17β-estradiol (E2)-induced toxicity in female Daphnia magna has not been determined. In this study, the transcriptome of D. magna was analyzed after exposure to three different concentrations (0, 10, and 100 ng L-1) of E2 at 3, 6, and 12 h. The results showed 351-17,221 significantly up-regulated and 505-10,282 significantly down-regulated genes (P < 0.05). Overall, the selected largest 10,282 (10 ng L-1vs control at 12 h) down-regulated and 17,221 (100 vs 10 ng L-1) up-regulated genes were identified; following annotation, pathways in cancer and RNA transport were found to be enriched according to the interaction network. Among all completed comparisons, KEGG pathways related to the immune system, cancer, disease infection, and active compound metabolism were identified by short time series expression miner analysis. A different set of genes fluctuated in a "U"-shaped pattern over time and at different concentrations of E2, whereas some genes associated with disintoxication showed a reverse "U"-shaped response as E2 administration was increased. These results suggest that E2 exposure caused transcriptional changes in the immune system, disintoxication, disease prevention, and the protein degradation pathway.
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Affiliation(s)
- Yao Zheng
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences/Fishery Eco-Environment Monitoring Center of Lower Reaches of Yangtze River/Wuxi Fishery College, Nanjing Agricultural University, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Environmental Factors(Wuxi), Ministry of Agriculture, Wuxi, Jiangsu, 214081, China
| | - Julin Yuan
- Agriculture Ministry Key Laboratory of Healthy Freshwater Aquaculture, Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou, 313001, China
| | - Zhimin Gu
- Agriculture Ministry Key Laboratory of Healthy Freshwater Aquaculture, Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou, 313001, China
| | - Guang Yang
- Fisheries Engineering Institute, Chinese Academy of Fishery Sciences, Beijing, 100000, PR China
| | - Tian Li
- Fisheries Engineering Institute, Chinese Academy of Fishery Sciences, Beijing, 100000, PR China
| | - Jiazhang Chen
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences/Fishery Eco-Environment Monitoring Center of Lower Reaches of Yangtze River/Wuxi Fishery College, Nanjing Agricultural University, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Environmental Factors(Wuxi), Ministry of Agriculture, Wuxi, Jiangsu, 214081, China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Beijing, 100039, PR China.
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21
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James CD, Morgan IM, Bristol ML. The Relationship between Estrogen-Related Signaling and Human Papillomavirus Positive Cancers. Pathogens 2020; 9:pathogens9050403. [PMID: 32455952 PMCID: PMC7281727 DOI: 10.3390/pathogens9050403] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 12/15/2022] Open
Abstract
High risk-human papillomaviruses (HPVs) are known carcinogens. Numerous reports have linked the steroid hormone estrogen, and the expression of estrogen receptors (ERs), to HPV-related cancers, although the exact nature of the interactions remains to be fully elucidated. Here we will focus on estrogen signaling and describe both pro and potentially anti-cancer effects of this hormone in HPV-positive cancers. This review will summarize: (1) cell culture-related evidence, (2) animal model evidence, and (3) clinical evidence demonstrating an interaction between estrogen and HPV-positive cancers. This comprehensive review provides insights into the potential relationship between estrogen and HPV. We suggest that estrogen may provide a potential therapeutic for HPV-related cancers, however additional studies are necessary.
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Affiliation(s)
- Claire D. James
- School of Dentistry, Philips Institute for Oral Health Research, Virginia Commonwealth University (VCU), Richmond, VA 23298, USA;
| | - Iain M. Morgan
- School of Dentistry, Philips Institute for Oral Health Research, Virginia Commonwealth University (VCU), Richmond, VA 23298, USA;
- VCU Massey Cancer Center, Virginia Commonwealth University (VCU), Richmond, VA 23298, USA
- Correspondence: (I.M.M.); (M.L.B.); Tel.: +1-804-628-3356 (M.L.B.)
| | - Molly L. Bristol
- School of Dentistry, Philips Institute for Oral Health Research, Virginia Commonwealth University (VCU), Richmond, VA 23298, USA;
- Correspondence: (I.M.M.); (M.L.B.); Tel.: +1-804-628-3356 (M.L.B.)
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22
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Naderi M, Salahinejad A, Attaran A, Niyogi S, Chivers DP. Rapid effects of estradiol and its receptor agonists on object recognition and object placement in adult male zebrafish. Behav Brain Res 2020; 384:112514. [PMID: 32004591 DOI: 10.1016/j.bbr.2020.112514] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/15/2020] [Accepted: 01/24/2020] [Indexed: 10/25/2022]
Abstract
In recent years, there has been a growing appreciation that 17β-estradiol (E2) can rapidly modulate learning and memory processes by binding to membrane estrogen receptors and cause the activation of a number of signaling cascades within the central nervous system. In this study, we sought to investigate the effects of post-training administration of E2 (100 ng/g, 1 μg/g, 10 μg/g) and involvement of the estrogen receptors (ERs) using selective ER agonists on the consolidation of object recognition (OR) and object placement memory (OP) in adult male zebrafish. The general activation of ERs with the highest E2 dose improved consolidation of memory in both learning tasks within 1.45 h of administration. Activation of classical ERs (ERα and ERβ) improved consolidation of OR memory, but had no effect on fish performance in OP task. On the other hand, activation of G protein-coupled ER1 impaired and enhanced consolidation of OR and OP memories, respectively. Memory improvement in both tasks was accompanied by a marked up-regulation in the expression of genes encoding ionotropic and metabotropic glutamate receptors in a task-dependent manner. In contrast, the down-regulation in the expression of certain ionotropic glutamate receptors was observed in fish with impaired OR memory. Moreover, our study also revealed an increase in the transcript abundance of genes associated with synaptic protein synthesis (brain-derived neurotrophic factor, synaptophysin, and the mechanistic target of rapamycin). These results suggest that E2 may affect consolidation of memory in zebrafish likely through rapid changes in synaptic morphology and function.
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Affiliation(s)
- Mohammad Naderi
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada.
| | - Arash Salahinejad
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada
| | - Anoosha Attaran
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada
| | - Som Niyogi
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada; Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK S7N 5B3, Canada
| | - Douglas P Chivers
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada
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23
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Chakravarthi VP, Ghosh S, Roby KF, Wolfe MW, Rumi MAK. A Gatekeeping Role of ESR2 to Maintain the Primordial Follicle Reserve. Endocrinology 2020; 161:5788411. [PMID: 32141511 DOI: 10.1210/endocr/bqaa037] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 02/28/2020] [Indexed: 12/17/2022]
Abstract
Over the entire reproductive lifespan in mammals, a fixed number of primordial follicles serve as the source of mature oocytes. Uncontrolled and excessive activation of primordial follicles can lead to depletion of the ovarian reserve. We observed that disruption of estrogen receptor β (ESR2) signaling results in increased activation of primordial follicles in Esr2-null (Esr2-/-) rats. However, follicle assembly was unaffected, and the total number of follicles remained comparable between neonatal wild-type and Esr2-/- ovaries. While the activated follicle counts were increased in Esr2-/- ovary, the number of primordial follicles were markedly decreased. Excessive recruitment of primordial follicles led to premature ovarian senescence in Esr2-/- rats and was associated with reduced levels of serum AMH and estradiol. Disruption of ESR2 signaling through administration of a selective antagonist (PHTPP) increased the number of activated follicles in wildtype rats, whereas a selective agonist (DPN) decreased follicle activation. In contrast, primordial follicle activation was not increased in the absence of ESR1, indicating that the regulation of primordial follicle activation is ESR2 specific. Follicle activation was also increased in Esr2 mutants lacking the DNA binding domain, suggesting a role for the canonical transcriptional activation function. Both primordial and activated follicles express ESR2, suggesting a direct regulatory role for ESR2 within these follicles. We also detected that loss of ESR2 augmented the activation of AKT, ERK, and mTOR pathways. Our results indicate that the lack of ESR2 upregulated both granulosa and oocyte factors, which can facilitate AKT and mTOR activation in Esr2-/- ovaries leading to increased activation of primordial follicles.
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Affiliation(s)
- V Praveen Chakravarthi
- Deprartment of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Subhra Ghosh
- Deprartment of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Katherine F Roby
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas
| | - Michael W Wolfe
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas
| | - M A Karim Rumi
- Deprartment of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
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24
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Lian B, Liu M, Lan Z, Sun T, Meng Z, Chang Q, Liu Z, Zhang J, Zhao C. Hippocampal overexpression of SGK1 ameliorates spatial memory, rescues Aβ pathology and actin cytoskeleton polymerization in middle-aged APP/PS1 mice. Behav Brain Res 2020; 383:112503. [PMID: 31981651 DOI: 10.1016/j.bbr.2020.112503] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/30/2019] [Accepted: 01/21/2020] [Indexed: 02/07/2023]
Abstract
The increasing occurrence and ineffective treatment of Alzheimer's disease (AD) has become one of the major challenges of the world. Limited studies have shown that serum- and glucocorticoid-inducible kinase 1 (SGK1) is involved in spatial memory formation and consolidation, but its role in AD-like spatial memory impairment and the related mechanisms are not clear. In this study, we first examined the age-related changes of SGK1 in the hippocampus of female APP/PS1 (AD) mice. Based on the finding and our previous finding that significant spatial memory impairment was detected in 8-month old AD mice, SGK1-overexpressing AAV (oSGK1) was constructed and injected into the hippocampus of 9-month old AD mice. One month later, the behavior alterations, Aβ production and deposit as well as changes of CA1 spine density and selected actin polymerization remodeling proteins were examined. The results showed that significant decrease of SGK1 was detected in 10-month old AD mice. The spatial memory impairment, the production and deposit of Aβ were reversed by oSGK1. Levels of hippocampal ADAM10 (α-secretase) and IDE (Aβ degradase), actin remodeling related proteins Rictor, Rac1, Cdc42 and Profilin-1 were significantly increased after oSGK1 treatment while hippocampal BACE1 (γ-secretase) and Cofilin remained unchanged. Taken together, our findings demonstrated a pivotal role of SGK1 in the treatment of AD-related memory impairment through upregulation of non- amyloidogenic processing of APP and degradation of Aβ, increase in spine plasticity related proteins, indicating increase in hippocampal SGK1 may be a potent therapeutic target against AD.
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Affiliation(s)
- Biyao Lian
- Department of Histology and Embryology, Ningxia Medical University, Yinchuan, 750004, China
| | - Mengying Liu
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China; The 305 Hospital of PLA, 100017, Beijing, China
| | - Zhen Lan
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Tao Sun
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Zhaoyou Meng
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Qing Chang
- Department of Histology and Embryology, Ningxia Medical University, Yinchuan, 750004, China
| | - Zhi Liu
- Department of Histology and Embryology, Third Military Medical University, Chongqing 400038, China
| | - Jiqiang Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China.
| | - Chengjun Zhao
- Department of Histology and Embryology, Ningxia Medical University, Yinchuan, 750004, China.
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25
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Sun H, Liu M, Sun T, Chen Y, Lan Z, Lian B, Zhao C, Liu Z, Zhang J, Liu Y. Age-related changes in hippocampal AD pathology, actin remodeling proteins and spatial memory behavior of male APP/PS1 mice. Behav Brain Res 2019; 376:112182. [PMID: 31472195 DOI: 10.1016/j.bbr.2019.112182] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 02/08/2023]
Abstract
Alzheimer's disease (AD) is the most common form of dementia in the elderly, characterized by amyloid-beta (Aβ) plaques and tau neurofibrillary tangles (NFTs). Synaptic plasticity impairment is one of the early pathological events in AD. Transgenic APP/PS1 mice that overproduce Aβ are one of the most extensively used AD animal models. Many studies have investigated the roles of NTF-related p-Tau, non-amyloidogenic ADAM10, amyloidogenic BACE1, Aβ proteolytic NEP and IDE in certain ages of APP/PS1 mice as well as dendritic spine-related Rictor and Profilin-1 in normal mice, but there are few studies exploring the age-related changes of these molecules in the hippocampus of APP/PS1 mice. Furthermore, current studies regarding when memory impairment occurs in these mice are controversial. Thus, we examined the changes of these molecules in APP/PS1 and control mice using Western blot in mice 2-month-old (2 m) to 10 m of age and behavior changes using the Morris water maze from 4 m to 8 m. The results showed that in APP/PS1 mice, significant changes of hippocampal p-Tau, Aβ, ADAM10, BACE1 and Rictor occurred at 6 m, NEP at 8 m, and IDE and Profilin-1 at 10 m. In control mice, changes of p-Tau, ADAM10, and BACE1 occurred at 8 m and NEP at 10 m, while IDE, Rictor and Profilin-1 remained unchanged. Importantly, the Morris water maze test revealed that spatial memory impairment was detected at 8 m but not 4 or 6 m. The above findings clearly evidence that neurochemical changes overtly precede cognitive dysfunctions in this AD model and provide novel knowledge for a better understanding of the molecular events driving AD.
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Affiliation(s)
- Huan Sun
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Mengying Liu
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Tao Sun
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Yutong Chen
- Student Brigade, College of Basic Medicine, Third Military Medical University, Chongqing, 400038, China
| | - Zhen Lan
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Biyao Lian
- Department of Histology and Embryology, Ningxia Medical University, Yinchuan, 750004, China
| | - Chengjun Zhao
- Department of Histology and Embryology, Ningxia Medical University, Yinchuan, 750004, China
| | - Zhi Liu
- Department of Histology and Embryology, Third Military Medical University, Chongqing, 400038, China
| | - Jiqiang Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing, 400038, China.
| | - Yan Liu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing, 400715, China.
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26
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Liu M, Xing F, Bian C, Zhao Y, Zhao J, Liu Y, Zhang J. Letrozole induces worse hippocampal synaptic and dendritic changes and spatial memory impairment than ovariectomy in adult female mice. Neurosci Lett 2019; 706:61-67. [PMID: 31077740 DOI: 10.1016/j.neulet.2019.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 04/28/2019] [Accepted: 05/07/2019] [Indexed: 01/11/2023]
Abstract
Estrogens (E2) derived from ovaries and/or local de novo synthesis in the hippocampus profoundly regulate hippocampal structure and function, but the importance of local E2 versus ovarian E2 on hippocampal synaptic plasticity and spatial memory has not been well elucidated. The present study used ovariectomy (OVX) and intraperitoneal injection of an E2 synthase inhibitor, letrozole (LET), in adult female mice to investigate changes in hippocampal steroid receptor coactivator-1 (SRC-1), postsynaptic proteins, and actin polymerization dynamics with these treatments. Changes in the CA1 spine density, synapse density and spatial learning and memory after OVX and LET were also investigated. As a result, OVX and LET showed similar regulation of the expression of GluR1, spinophilin and p-Cofilin, but LET tended to induce more significant changes in SRC-1, PSD95, Rictor, Cofilin and actin depolymerization. More significant decreases in F-actin/G-actin, CA1 spine density and synapse density were also observed after LET than after OVX. Notably, LET-treated mice showed worse learning and memory impairment than OVX mice. Taken together, these results demonstrated that circulating E2 played a limited role and that hippocampus-derived E2 played a more important role in the regulation of hippocampal synaptic plasticity and hippocampus-based spatial learning and memory.
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Affiliation(s)
- Mengying Liu
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Fangzhou Xing
- School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Chen Bian
- Department of Military Psychology, College of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Yangang Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Jikai Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Yan Liu
- School of Life Sciences, Southwest University, Chongqing, 400715, China.
| | - Jiqiang Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China.
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27
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Hippocampus-specific Rictor knockdown inhibited 17β-estradiol induced neuronal plasticity and spatial memory improvement in ovariectomized mice. Behav Brain Res 2019; 364:50-61. [DOI: 10.1016/j.bbr.2019.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/08/2019] [Accepted: 02/09/2019] [Indexed: 11/19/2022]
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28
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Zhang L, Cao LL, Yang DD, Ding JH, Guo XD, Xue TF, Zhao XJ, Sun XL. Establishment and evaluation of a novel mouse model of peri/postmenopausal depression. Heliyon 2019; 5:e01195. [PMID: 30839939 PMCID: PMC6365542 DOI: 10.1016/j.heliyon.2019.e01195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/20/2018] [Accepted: 01/29/2019] [Indexed: 12/11/2022] Open
Abstract
Women are believed to be more vulnerable to develop depressive symptoms during the perimenopause compared to postmenopause. The traditional bilateral ovariectomy and chronic mild stress (CMS) stimulation animal model produces a postmenopausal depressive-like state but the transition from perimenopausal period to postmenopausal period was ignored. Thus we establish a novel animal model in which the mice were stimulated by CMS for three months and removed the ovaries by two-step operation, and then evaluate whether this novel model could be much better for preclinical study used as a peri/postmenopause depressive model. The present study systemically evaluated the changes induced by two-step ovariectomy plus CMS in the mice. The depression-like behaviors, the levels of corticosterone, estrogen, pro-inflammatory factors, neurotransmitters, as well as brain-derived neurotrophic factor were determined; the changes of estrogen receptors, serotonin receptors, uterine weight and bone microarchitecture were also observed. The results show that the behaviors and biochemical indexes of mice changed gradually over time. Our study suggests that this two-step ovariectomy operation plus CMS successfully establishes a more reasonable peri/postmenopausal depression animal model which effectively simulates the clinical symptoms of peri/postmenopausal depressive women.
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Affiliation(s)
- Ling Zhang
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Nanjing, Jiangsu, 211166, China.,Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Lu-Lu Cao
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Nanjing, Jiangsu, 211166, China.,Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Dan-Dan Yang
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Nanjing, Jiangsu, 211166, China.,Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jian-Hua Ding
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Xu-Dong Guo
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Nanjing, Jiangsu, 211166, China.,Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Teng-Fei Xue
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Nanjing, Jiangsu, 211166, China.,Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Xiao-Jie Zhao
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Nanjing, Jiangsu, 211166, China.,Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Xiu-Lan Sun
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Nanjing, Jiangsu, 211166, China.,Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
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29
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Zhang YY, Liu MY, Liu Z, Zhao JK, Zhao YG, He L, Li W, Zhang JQ. GPR30-mediated estrogenic regulation of actin polymerization and spatial memory involves SRC-1 and PI3K-mTORC2 in the hippocampus of female mice. CNS Neurosci Ther 2019; 25:714-733. [PMID: 30714337 PMCID: PMC6515707 DOI: 10.1111/cns.13108] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/18/2018] [Accepted: 01/03/2019] [Indexed: 12/29/2022] Open
Abstract
AIMS The G-protein-coupled estrogen receptor GPR30 (also referred to as GPER) has been implicated in the estrogenic regulation of hippocampal plasticity and spatial memory; however, the molecular mechanisms are largely unclear. METHODS In this study, we initially examined the levels of GPR30 in the hippocampus of postnatal, ovariectomy (OVX)- and letrozole (LET)-treated female mice. Under G1, G15, and/or OVX treatment, the spatial memory, spine density, levels of ERα, ERβ, and SRC-1, selected synaptic proteins, mTORC2 signals (Rictor and p-AKT Ser473), and actin polymerization dynamics were subsequently evaluated. Furthermore, G1, G15, and/or E2 combined with SRC-1 and/or PI3K inhibitors, actin cytoskeleton polymerization modulator JPK, and CytoD treatments were used to address the mechanisms that underlie GPR30 regulation in vitro. Finally, mTORC2 activator A-443654 (A4) was used to explore the role of mTORC2 in GPR30 regulation of spatial memory. RESULTS The results showed that high levels of GPR30 were detected in the adult hippocampus and the levels were downregulated by OVX and LET. OVX induced an impairment of spatial memory, and changes in other parameters previously described were reversed by G1 and mimicked by G15. Furthermore, the E2 effects on SRC-1 and mTORC2 signals, synaptic proteins, and actin polymerization were inhibited by G15, whereas G1 effects on these parameters were inhibited by the blockade of SRC-1 or PI3K; the levels of synaptic proteins were regulated by JPK and CytoD. Importantly, G15-induced actin depolymerization and spatial memory impairment were rescued by mTORC2 activation with A4. CONCLUSIONS Taking together, these results demonstrated that decreased GPR30 induces actin depolymerization through SRC-1 and PI3K/mTORC2 pathways and ultimately impairs learning and memory, indicating its potential role as a therapeutic target against hippocampus-based, E2-related memory impairments.
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Affiliation(s)
- Yuan-Yuan Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Meng-Ying Liu
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Zhi Liu
- Department of Histology and Embryology, Third Military Medical University, Chongqing, China
| | - Ji-Kai Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Yan-Gang Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Li He
- School of Nursing, Third Military Medical University, Chongqing, China
| | - Wei Li
- School of Nursing, Third Military Medical University, Chongqing, China
| | - Ji-Qiang Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
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30
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Kirshner ZZ, Gibbs RB. Use of the REVERT ® total protein stain as a loading control demonstrates significant benefits over the use of housekeeping proteins when analyzing brain homogenates by Western blot: An analysis of samples representing different gonadal hormone states. Mol Cell Endocrinol 2018; 473:156-165. [PMID: 29396126 PMCID: PMC6045444 DOI: 10.1016/j.mce.2018.01.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/21/2018] [Accepted: 01/22/2018] [Indexed: 01/01/2023]
Abstract
Western blot is routinely used to quantify differences in the levels of target proteins in tissues. Standard methods typically use measurements of housekeeping proteins to control for variations in loading and protein transfer. This is problematic, however, when housekeeping proteins also are affected by experimental conditions such as injury, disease, and/or gonadal hormone manipulations. Our goal was to evaluate an alternative and perhaps superior method for conducting Western blot analysis of brain tissue homogenates from rats with distinct physiologically relevant gonadal hormone states. Tissues were collected from the hippocampus, frontal cortex, and striatum of young adult female rats that either were ovariectomized to model surgical menopause, or were treated with the ovatotoxin 4-vinylcyclohexene diepoxide (VCD) to model transitional menopause. Tissues also were collected from rats with a normal estrous cycle killed at proestrus when estradiol levels are high, and at diestrus when estradiol levels are low. Western blot detection of α-tubulin, β-actin, and GAPDH was performed and were compared for sensitivity and reliability with a fluorescent total protein stain (REVERT®). Results show that the total protein stain was much less variable across samples and had a greater linear range than α-tubulin, β-actin, or GAPDH. The stain was stable and easy to use, and did not interfere with the immunodetection or multiplexed detection of the housekeeping proteins. In addition, we show that normalization of our data to total protein, but not to GAPDH, revealed significant differences in α-tubulin expression in the hippocampus as a function of treatment, and that gel-to-gel consistency in measuring differences between paired samples run on multiple gels was significantly better when data were normalized to total protein than when normalized to GAPDH. These results demonstrate that the REVERT® total protein stain can be used in Western blot analysis of brain tissue homogenates to control for variations in loading and protein transfer, and provides significant advantages over the use of housekeeping proteins for quantifying changes in the levels of multiple target proteins.
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Affiliation(s)
- Z Z Kirshner
- University of Pittsburgh, Department of Pharmaceutical Sciences, 1004 Salk Hall, Pittsburgh, PA 15261, USA.
| | - R B Gibbs
- University of Pittsburgh, Department of Pharmaceutical Sciences, 1004 Salk Hall, Pittsburgh, PA 15261, USA.
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31
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Tang SS, Ren Y, Xu LJ, Cao JR, Hong H, Ji H, Hu QH. Activation of ERα and/or ERβ ameliorates cognitive impairment and apoptosis in streptozotocin-induced diabetic mice. Horm Behav 2018; 105:95-103. [PMID: 30096284 DOI: 10.1016/j.yhbeh.2018.08.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 07/18/2018] [Accepted: 08/07/2018] [Indexed: 02/02/2023]
Abstract
Estrogen receptors (ERs) are thought to be associated with the onset and progression of neurodegenerative injuries and diseases, but the relationship and mechanisms underlying between ERs and cognition in type 1 diabetes remain elusive. In the current study, we investigated the effects of ERα and ERβ on the memory impairment and apoptosis in streptozotocin-induced diabetic mice. We found that ERα and/or ERβ activation using their agonists (0.5 mg/kg E2, PPT or DPN) ameliorate memory impairment in the Morris water maze (MWM) and Y-maze tests and suppress apoptosis as evidenced by decreased caspase-3 activity and increased ratio of Bcl-2/Bax. Importantly, treatment with the pharmacologic ERs agonists caused significant increases in the membrane ERα and ERβ expression and subsequent PI3K/Akt, CREB and BDNF activation in the hippocampus of diabetic mice. Our data indicate that ERα and ERβ are involved in the cognitive impairment of type 1 diabetes and that activation of ERs via administration of ERs agonists could be a novel and promising strategy for the treatment of diabetic cognitive impairment.
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Affiliation(s)
- Su-Su Tang
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 210009, China.
| | - Yi Ren
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 210009, China
| | - Li-Jie Xu
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 210009, China
| | - Jing-Ran Cao
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 210009, China
| | - Hao Hong
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 210009, China
| | - Hui Ji
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 210009, China
| | - Qing-Hua Hu
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 210009, China.
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32
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Brocca ME, Garcia-Segura LM. Non-reproductive Functions of Aromatase in the Central Nervous System Under Physiological and Pathological Conditions. Cell Mol Neurobiol 2018; 39:473-481. [PMID: 30084008 DOI: 10.1007/s10571-018-0607-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/25/2018] [Indexed: 02/07/2023]
Abstract
The modulation of brain function and behavior by steroid hormones was classically associated with their secretion by peripheral endocrine glands. The discovery that the brain expresses the enzyme aromatase, which produces estradiol from testosterone, expanded this traditional concept. One of the best-studied roles of brain estradiol synthesis is the control of reproductive behavior. In addition, there is increasing evidence that estradiol from neural origin is also involved in a variety of non-reproductive functions. These include the regulation of neurogenesis, neuronal development, synaptic transmission, and plasticity in brain regions not directly related with the control of reproduction. Central aromatase is also involved in the modulation of cognition, mood, and non-reproductive behaviors. Furthermore, under pathological conditions aromatase is upregulated in the central nervous system. This upregulation represents a neuroprotective and likely also a reparative response by increasing local estradiol levels in order to maintain the homeostasis of the neural tissue. In this paper, we review the non-reproductive functions of neural aromatase and neural-derived estradiol under physiological and pathological conditions. We also consider the existence of sex differences in the role of the enzyme in both contexts.
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Affiliation(s)
- Maria Elvira Brocca
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain.
| | - Luis Miguel Garcia-Segura
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
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33
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Frick KM, Kim J. Mechanisms underlying the rapid effects of estradiol and progesterone on hippocampal memory consolidation in female rodents. Horm Behav 2018; 104:100-110. [PMID: 29727606 PMCID: PMC6226372 DOI: 10.1016/j.yhbeh.2018.04.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/23/2018] [Accepted: 04/25/2018] [Indexed: 12/21/2022]
Abstract
Contribution to Special Issue on Fast effects of steroids. Although rapid effects of 17β‑estradiol (E2) and progesterone on cellular functions have been observed for several decades, a proliferation of data in recent years has demonstrated the importance of these actions to cognition. In particular, an emerging literature has demonstrated that these hormones promote the consolidation of spatial and object recognition memories in rodents via rapid activation of numerous cellular events including cell signaling, histone modifications, and local protein translation in the hippocampus. This article provides an overview of the evidence demonstrating that E2 and progesterone enhance hippocampal memory consolidation in female rodents, and then discusses numerous molecular mechanisms thus far shown to mediate the beneficial effects of these hormones on memory formation.
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Affiliation(s)
- Karyn M Frick
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, United States.
| | - Jaekyoon Kim
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, United States
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34
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Barabás K, Godó S, Lengyel F, Ernszt D, Pál J, Ábrahám IM. Rapid non-classical effects of steroids on the membrane receptor dynamics and downstream signaling in neurons. Horm Behav 2018; 104:183-191. [PMID: 29775570 DOI: 10.1016/j.yhbeh.2018.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/08/2018] [Accepted: 05/09/2018] [Indexed: 12/26/2022]
Abstract
Contribution to Special Issue on Fast effects of steroids. Although rapid effects of steroid hormones on membrane receptors and intracellular signaling molecules have been extensively studied in neurons, we are only beginning to understand the molecular mechanisms behind these non-classical steroid actions. Single molecule tracking (SMT) studies on live cells demonstrated that surface trafficking of membrane receptors determines their ligand binding properties and downstream signaling events. Recent findings suggest that one of the underlying mechanisms of non-classical steroid actions is the alteration of receptor movements on the membrane surface. In order to highlight this novel aspect of steroid effects, we first address the types of receptor movements in the plasma membrane and the role of cortical actin dynamics in receptor movement. We then discuss how single molecules and the surface movements of receptors can be detected in live cells. Next, we review the fundamental processes, which determine the effect of steroids on the plasma membrane: steroid movement through the lipid bilayer and the role of steroid membrane receptors. Using glutamate and neurotrophin receptors (NTRs) as examples, we demonstrate the features of receptor dynamics in the membrane. In addition, we survey the available data of rapid steroid actions on membrane receptor trafficking: we discuss how glucocorticoids act on the surface diffusion of glutamate receptor molecules and how estradiol acts on NTRs and gamma-aminobutyric acid type A receptors (GABAARs) and their related signaling events as well as on cortical actin. Finally, we address the physiological relevance of rapid steroid action on membrane receptors dynamics.
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Affiliation(s)
- Klaudia Barabás
- MTA NAP-B Molecular Neuroendocrinology Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, University of Pécs, Pécs, Hungary
| | - Soma Godó
- MTA NAP-B Molecular Neuroendocrinology Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, University of Pécs, Pécs, Hungary
| | - Ferenc Lengyel
- MTA NAP-B Molecular Neuroendocrinology Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, University of Pécs, Pécs, Hungary
| | - Dávid Ernszt
- MTA NAP-B Molecular Neuroendocrinology Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, University of Pécs, Pécs, Hungary
| | - József Pál
- MTA NAP-B Molecular Neuroendocrinology Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, University of Pécs, Pécs, Hungary
| | - István M Ábrahám
- MTA NAP-B Molecular Neuroendocrinology Research Group, Institute of Physiology, Medical School, Centre for Neuroscience, Szentágothai Research Institute, University of Pécs, Pécs, Hungary.
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Chen B, Yang Z, Yang C, Qin W, Gu J, Hu C, Chen A, Ning J, Yi B, Lu K. A self-organized actomyosin drives multiple intercellular junction disruption and directly promotes neutrophil recruitment in lipopolysaccharide-induced acute lung injury. FASEB J 2018; 32:fj201701506RR. [PMID: 29879372 DOI: 10.1096/fj.201701506rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Acute lung injury (ALI), with the hallmarks of vascular integrity disruption and neutrophil recruitment, is associated with high morbidity and mortality. Enhanced actomyosin assembly contributes to endothelial cell contact dysfunction. However, the roles and mechanisms of actomyosin assembly in ALI are not totally clear. We investigated the dynamic alterations and roles of actomyosin in ALI in vivo and in vitro models induced by LPS. Pulmonary levels of E-cadherin, vascular endothelial-cadherin, occludin, myosin phosphatase target subunit 1, and thymosin β4 were decreased, and the number and activity of neutrophils and the levels of actomyosin, p-ρ-associated protein kinase, p-myosin light-chain kinase, and profilin1 were increased within 3 d after LPS administration, and then, those alterations were recovered within the next 4 d, which was consistent with the alterations of lung histology, vascular permeability, edema, and serum levels of IL-6 and TNF-α. Direct or indirect inhibition of increased F-actin or myosin assembly ameliorated the reduction of intercellular junction molecules, the activation and migration of neutrophils, and the degree of lung injury. Moreover, neutrophil activation further promoted actomyosin assembly and aggravated lung injury. Conclusively, the enhancement of self-organized actomyosin contributes to alveolar-capillary barrier disruption and neutrophil recruitment in inflammatory response, which is a potential therapeutic target for ALI.-Chen, B., Yang, Z., Yang, C., Qin, W., Gu, J., Hu, C., Chen, A., Ning, J., Yi, B., Lu, K. A self-organized actomyosin drives multiple intercellular junction disruption and directly promotes neutrophil recruitment in lipopolysaccharide-induced acute lung injury.
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Affiliation(s)
- Bing Chen
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Zhen Yang
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Congwen Yang
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Wenhan Qin
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jianteng Gu
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Chuanmin Hu
- Department of Clinical Biochemistry, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - An Chen
- Department of Clinical Biochemistry, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jiaolin Ning
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Bin Yi
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Kaizhi Lu
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing, China
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Zhao J, Bian C, Liu M, Zhao Y, Sun T, Xing F, Zhang J. Orchiectomy and letrozole differentially regulate synaptic plasticity and spatial memory in a manner that is mediated by SRC-1 in the hippocampus of male mice. J Steroid Biochem Mol Biol 2018; 178:354-368. [PMID: 29452160 DOI: 10.1016/j.jsbmb.2018.02.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 02/07/2018] [Accepted: 02/12/2018] [Indexed: 11/23/2022]
Abstract
Hippocampal synaptic plasticity is the basis of spatial memory and cognition and is strongly regulated by both testicular androgens (testosterone, T) and hippocampal estrogens (17β-estradiol, E2) converted from T by aromatase, which is inhibited by letrozole (LET), but the contribution of each pathway to spatial memory and the associated mechanisms are unclear. In this study, we first used orchiectomy (ORX) and LET injection to investigate the effects of T and hippocampal E2 on spatial memory and hippocampal synaptic plasticity. Next, we examined the changes in steroid receptors and steroid receptor coactivator-1 (SRC-1) under these treatments. Finally, we constructed an SRC-1 RNA interference lentivirus and an AROM overexpression lentivirus to explore the roles of SRC-1 under T replacement and AROM overexpression. The results revealed spatial memory impairment only after LET. LET induced more actin depolymerization and greater losses of spines, synapses, and postsynaptic proteins compared with ORX. Moreover, although ERα and ERβ were affected by LET and ORX at similar levels, AR, GPR30, and SRC-1 were dramatically decreased by LET compared with ORX. Finally, the T and AROM overexpression-induced changes in synaptic proteins and actin polymerization were blocked by SRC-1 inhibition. These results demonstrate that testicular androgens play a limited role, whereas local E2 is more important for cognition, which may explain why castrated men such as eunuchs usually do not have cognitive disorders. These results also suggest a pivotal role of SRC-1 in the action of steroids; thus, SRC-1 may serve as a novel therapeutic target for cognitive disorders.
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Affiliation(s)
- Jikai Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Chen Bian
- Department of Military Psychology, College of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Mengying Liu
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Yangang Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Tao Sun
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Fangzhou Xing
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China; School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Jiqiang Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China.
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37
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Xing FZ, Zhao YG, Zhang YY, He L, Zhao JK, Liu MY, Liu Y, Zhang JQ. Nuclear and membrane estrogen receptor antagonists induce similar mTORC2 activation-reversible changes in synaptic protein expression and actin polymerization in the mouse hippocampus. CNS Neurosci Ther 2018; 24:495-507. [PMID: 29352507 DOI: 10.1111/cns.12806] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 12/23/2017] [Accepted: 12/24/2017] [Indexed: 11/28/2022] Open
Abstract
AIMS Estrogens play pivotal roles in hippocampal synaptic plasticity through nuclear receptors (nERs; including ERα and ERβ) and the membrane receptor (mER; also called GPR30), but the underlying mechanism and the contributions of nERs and mER remain unclear. Mammalian target of rapamycin complex 2 (mTORC2) is involved in actin cytoskeleton polymerization and long-term memory, but whether mTORC2 is involved in the regulation of hippocampal synaptic plasticity by ERs is unclear. METHODS We treated animals with nER antagonists (MPP/PHTPP) or the mER antagonist (G15) alone or in combination with A-443654, an activator of mTORC2. Then, we examined the changes in hippocampal SRC-1 expression, mTORC2 signaling (rictor and phospho-AKTSer473), actin polymerization (phospho-cofilin and profilin-1), synaptic protein expression (GluR1, PSD95, spinophilin, and synaptophysin), CA1 spine density, and synapse density. RESULTS All of the examined parameters except synaptophysin expression were significantly decreased by MPP/PHTPP and G15 treatment. MPP/PHTPP and G15 induced a similar decrease in most parameters except p-cofilin, GluR1, and spinophilin expression. The ER antagonist-induced decreases in these parameters were significantly reversed by mTORC2 activation, except for the change in SRC-1, rictor, and synaptophysin expression. CONCLUSIONS nERs and mER contribute similarly to the changes in proteins and structures associated with synaptic plasticity, and mTORC2 may be a novel target of hippocampal-dependent dementia such as Alzheimer's disease as proposed by previous studies.
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Affiliation(s)
- Fang-Zhou Xing
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing, China
| | - Yan-Gang Zhao
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Yuan-Yuan Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Li He
- School of Nursing, Third Military Medical University, Chongqing, China
| | - Ji-Kai Zhao
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Meng-Ying Liu
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Yan Liu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing, China
| | - Ji-Qiang Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing, China
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38
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Zárate S, Stevnsner T, Gredilla R. Role of Estrogen and Other Sex Hormones in Brain Aging. Neuroprotection and DNA Repair. Front Aging Neurosci 2018. [PMID: 29311911 DOI: 10.3389/fnagi.2017.00430/xml/nlm] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023] Open
Abstract
Aging is an inevitable biological process characterized by a progressive decline in physiological function and increased susceptibility to disease. The detrimental effects of aging are observed in all tissues, the brain being the most important one due to its main role in the homeostasis of the organism. As our knowledge about the underlying mechanisms of brain aging increases, potential approaches to preserve brain function rise significantly. Accumulating evidence suggests that loss of genomic maintenance may contribute to aging, especially in the central nervous system (CNS) owing to its low DNA repair capacity. Sex hormones, particularly estrogens, possess potent antioxidant properties and play important roles in maintaining normal reproductive and non-reproductive functions. They exert neuroprotective actions and their loss during aging and natural or surgical menopause is associated with mitochondrial dysfunction, neuroinflammation, synaptic decline, cognitive impairment and increased risk of age-related disorders. Moreover, loss of sex hormones has been suggested to promote an accelerated aging phenotype eventually leading to the development of brain hypometabolism, a feature often observed in menopausal women and prodromal Alzheimer's disease (AD). Although data on the relation between sex hormones and DNA repair mechanisms in the brain is still limited, various investigations have linked sex hormone levels with different DNA repair enzymes. Here, we review estrogen anti-aging and neuroprotective mechanisms, which are currently an area of intense study, together with the effect they may have on the DNA repair capacity in the brain.
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Affiliation(s)
- Sandra Zárate
- Instituto de Investigaciones Biomédicas (INBIOMED, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina.,Departamento de Histología, Embriología, Biología Celular y Genética, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Tinna Stevnsner
- Danish Center for Molecular Gerontology and Danish Aging Research Center, Department of Molecular Biology and Genetics, University of Aarhus, Aarhus, Denmark
| | - Ricardo Gredilla
- Department of Physiology, Faculty of Medicine, Complutense University, Madrid, Spain
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39
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Zárate S, Stevnsner T, Gredilla R. Role of Estrogen and Other Sex Hormones in Brain Aging. Neuroprotection and DNA Repair. Front Aging Neurosci 2017; 9:430. [PMID: 29311911 PMCID: PMC5743731 DOI: 10.3389/fnagi.2017.00430] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 12/14/2017] [Indexed: 12/13/2022] Open
Abstract
Aging is an inevitable biological process characterized by a progressive decline in physiological function and increased susceptibility to disease. The detrimental effects of aging are observed in all tissues, the brain being the most important one due to its main role in the homeostasis of the organism. As our knowledge about the underlying mechanisms of brain aging increases, potential approaches to preserve brain function rise significantly. Accumulating evidence suggests that loss of genomic maintenance may contribute to aging, especially in the central nervous system (CNS) owing to its low DNA repair capacity. Sex hormones, particularly estrogens, possess potent antioxidant properties and play important roles in maintaining normal reproductive and non-reproductive functions. They exert neuroprotective actions and their loss during aging and natural or surgical menopause is associated with mitochondrial dysfunction, neuroinflammation, synaptic decline, cognitive impairment and increased risk of age-related disorders. Moreover, loss of sex hormones has been suggested to promote an accelerated aging phenotype eventually leading to the development of brain hypometabolism, a feature often observed in menopausal women and prodromal Alzheimer's disease (AD). Although data on the relation between sex hormones and DNA repair mechanisms in the brain is still limited, various investigations have linked sex hormone levels with different DNA repair enzymes. Here, we review estrogen anti-aging and neuroprotective mechanisms, which are currently an area of intense study, together with the effect they may have on the DNA repair capacity in the brain.
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Affiliation(s)
- Sandra Zárate
- Instituto de Investigaciones Biomédicas (INBIOMED, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- Departamento de Histología, Embriología, Biología Celular y Genética, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Tinna Stevnsner
- Danish Center for Molecular Gerontology and Danish Aging Research Center, Department of Molecular Biology and Genetics, University of Aarhus, Aarhus, Denmark
| | - Ricardo Gredilla
- Department of Physiology, Faculty of Medicine, Complutense University, Madrid, Spain
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