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Feng JH, Li L, Lv XY, Xiong F, Hu XL, Wang H. Protective Effects of 4-Trifluoromethyl-( E)-cinnamoyl]- L-4- F-phenylalanine Acid against Chronic Cerebral Hypoperfusion Injury through Promoting Brain-Derived Neurotrophic Factor-Mediated Neurogenesis. ACS Chem Neurosci 2022; 13:3057-3067. [PMID: 36245095 DOI: 10.1021/acschemneuro.2c00417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Vascular dementia (VaD), one of the major consequences after stroke, is the second reason for the cognitive decline in aged people. Chronic cerebral hypoperfusion (CCH) is considered as the main cause for cognitive impairment in VaD patients. In our previous study, a synthetic compound, 4-trifluoromethyl-(E)-cinnamoyl]-L-4-F-phenylalanine acid (AE-18), has been proven to decrease infarct volume and to recover the insufficient blood supply after ischemia-reperfusion in rats, which was reminded that AE-18 may possess the ameliorative effect in CCH. In this study, the bilateral common carotid artery occlusion was performed to establish the CCH model in rats to evaluate the effect and mechanisms of AE-18 in CCH. Results showed that AE-18 (5 and 10 mg/kg, i.g.) could recover the learning and memory and increase the number of neurons in the hippocampus, which may be attributed to its neurogenesis effects and its recovery of cerebral blood flow in CCH rats. In addition, the in vitro studies showed that AE-18 promoted neuronal proliferation, induced differentiation of Neuro-2a cells into a neuron-like morphology, and accelerated the establishment of axon-dendrite polarization of primary hippocampal neurons through upregulating brain-derived neurotrophic factor via the PI3K/Akt/CREB pathway. In conclusion, AE-18 is a promising candidate for the treatment of cognitive decline after CCH injury by restoring blood supply to the brain and promoting neurogenesis in the hippocampus.
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Affiliation(s)
- Jia-Hao Feng
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Lun Li
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Xian-Yu Lv
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Fei Xiong
- State Key Laboratory of Bioelectronics, Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, People's Republic of China
| | - Xiao-Long Hu
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Hao Wang
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
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Dong LX, Bao HL, Zhang YY, Liu Y, Zhang GW, An FM. RETRACTED: MicroRNA-16-5p/BTG2 axis affects neurological function, autophagy and apoptosis of hippocampal neurons in Alzheimer's disease. Brain Res Bull 2021; 175:254-262. [PMID: 34217799 DOI: 10.1016/j.brainresbull.2021.06.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 03/17/2021] [Accepted: 06/29/2021] [Indexed: 12/25/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief as there are concerns about the reliability of the results. Concerns have been raised about the western blot bands in Figures 6 B + D having the same eyebrow shaped phenotype as found in many other publications as detailed here (https://pubpeer.com/publications/B32F93859FBAA13471ED0FFCA5BCB6). The journal requested the corresponding author to comment on these concerns and send the raw data, however the author was not able to provide uncropped images of the original gels. The Editor-in-Chief therefore no longer has confidence in the data and conclusions of this study.
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Affiliation(s)
- Li-Xia Dong
- College of Nursing, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia Autonomous Region, PR China; Institute of Dementia, Inner Mongolia University for Nationalities, Tongliao, 028002, Inner Mongolia, PR China
| | - Hai-Lan Bao
- College of Nursing, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia Autonomous Region, PR China; Institute of Dementia, Inner Mongolia University for Nationalities, Tongliao, 028002, Inner Mongolia, PR China
| | - Yan-Yun Zhang
- College of Nursing, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia Autonomous Region, PR China; Institute of Dementia, Inner Mongolia University for Nationalities, Tongliao, 028002, Inner Mongolia, PR China
| | - Yu Liu
- College of Nursing, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia Autonomous Region, PR China; Institute of Dementia, Inner Mongolia University for Nationalities, Tongliao, 028002, Inner Mongolia, PR China
| | - Guo-Wei Zhang
- College of Nursing, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia Autonomous Region, PR China; Institute of Dementia, Inner Mongolia University for Nationalities, Tongliao, 028002, Inner Mongolia, PR China.
| | - Feng-Mao An
- Institute of Dementia, Inner Mongolia University for Nationalities, Tongliao, 028002, Inner Mongolia, PR China; Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao, 028002, Inner Mongolia, PR China.
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Dong BC, Li MX, Wang XY, Cheng X, Wang Y, Xiao T, Jolkkonen J, Zhao CS, Zhao SS. Effects of CXCR7-neutralizing antibody on neurogenesis in the hippocampal dentate gyrus and cognitive function in the chronic phase of cerebral ischemia. Neural Regen Res 2020; 15:1079-1085. [PMID: 31823888 PMCID: PMC7034276 DOI: 10.4103/1673-5374.270416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Stromal cell-derived factor-1 and its receptor CXCR4 are essential regulators of the neurogenesis that occurs in the adult hippocampal dentate gyrus. However, the effects of CXCR7, a new atypical receptor of stromal cell-derived factor-1, on hippocampal neurogenesis after a stroke remain largely unknown. Our study is the first to investigate the effect of a CXCR7-neutralizing antibody on neurogenesis in the dentate gyrus and the associated recovery of cognitive function of rats in the chronic stage of cerebral ischemia. The rats were randomly divided into sham, sham + anti-CXCR7, ischemia and ischemia + anti-CXCR7 groups. Endothelin-1 was injected in the ipsilateral motor cortex and striatum to induce focal cerebral ischemia. Sham group rats were injected with saline instead of endothelin-1 via intracranial injection. Both sham and ischemic rats were treated with intraventricular infusions of CXCR7-neutralizing antibodies for 6 days 1 week after surgery. Immunofluorescence staining with doublecortin, a marker for neuronal precursors, was performed to assess the neurogenesis in the dentate gyrus. We found that anti-CXCR7 antibody infusion enhanced the proliferation and dendritic development of doublecortin-labeled cells in the dentate gyrus in both ischemic and sham-operated rats. Spatial learning and memory functions were assessed by Morris water maze tests 30–32 days after ischemia. CXCR7-neutralizing antibody treatment significantly reduced the escape latency of the spatial navigation trial and increased the time spent in the target quadrant of spatial probe trial in animals that received ischemic insult, but not in sham operated rats. These results suggest that CXCR7-neutralizing antibody enhances the neurogenesis in the dentate gyrus and improves the cognitive function after cerebral ischemia in rats. All animal experimental protocols and procedures were approved by the Institutional Animal Care and Use Committee of China Medical University (CMU16089R) on December 8, 2016.
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Affiliation(s)
- Bing-Chao Dong
- Department of Neurology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Mei-Xuan Li
- Department of Neurology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Xiao-Yin Wang
- Department of Neurology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Xi Cheng
- Department of Neurology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yu Wang
- Department of Neurology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Ting Xiao
- Key Laboratory of Immunodermatology, Ministry of Health, Ministry of Education, Shenyang, Liaoning Province, China
| | - Jukka Jolkkonen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Chuan-Sheng Zhao
- Department of Neurology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Shan-Shan Zhao
- Department of Neurology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
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Zeng Q, Huang Z, Zhang J, Liu R, Li X, Zeng J, Xiao H. 3'-Daidzein Sulfonate Sodium Protects Against Chronic Cerebral Hypoperfusion-Mediated Cognitive Impairment and Hippocampal Damage via Activity-Regulated Cytoskeleton-Associated Protein Upregulation. Front Neurosci 2019; 13:104. [PMID: 30930725 PMCID: PMC6424008 DOI: 10.3389/fnins.2019.00104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 01/29/2019] [Indexed: 01/07/2023] Open
Abstract
The learning and memory impairment caused by chronic cerebral hypoperfusion (CCH) is permanent and seriously affects the daily life of patients and their families. The compound 3'-daidzein sulfonate sodium (DSS) protects against CCH-mediated memory impairment and hippocampal damage in a rat model. In the present study, we further investigated the underlying mechanisms of this effect in the rat two-vessel occlusion (2VO) and the oxygen and glucose deprivation (OGD) primary hippocampal neuron models. The hippocampal expression of the activity-regulated cytoskeleton associated protein (Arc) following DSS administration was detected in vivo and in vitro and behavioral testing was used to investigate the role of Arc in the DSS-mediated rescue of CCH-induced neurotoxicity. DSS increased hippocampal Arc expression both in vivo and in vitro. Arc overexpression increased and Arc knockdown decreased hippocampal neuronal densities in rat 2VO model, when compared to DSS treatment alone. Arc overexpression decreased and Arc knockdown increased apoptotic hippocampal neurons in rat 2VO and OGD primary hippocampal neuron models, when compared to DSS treatment alone. Arc overexpression enhanced and Arc knockdown inhibited the beneficial effect of DSS on 2VO-induced cognitive impairment. DSS restored the neuronal OGD-mediated phosphorylation decrease in protein kinase alpha (PKA), extracellular signal-regulated protein kinases 1/2 (ERK1/2) and cAMP response element binding protein (CREB), in vitro. PKA and ERK1/2 inhibition blocked the DSS-mediated effects on neuronal apoptosis and OGD-induced Arc downregulation. In conclusion, DSS protects against CCH-mediated cognitive impairment and hippocampal damage via Arc upregulation, which is activated by the PKA/CREB and ERK/CREB signaling pathways. Our study further confirms the potential use of DSS as an effective treatment for CCH-associated diseases.
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Affiliation(s)
- Qi Zeng
- Department of Ultrasound, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Zhihua Huang
- School of Basic Medicine, Gannan Medical University, Ganzhou, China
| | - Jiandong Zhang
- School of Basic Medicine, Gannan Medical University, Ganzhou, China
| | - Ruizhen Liu
- School of Basic Medicine, Gannan Medical University, Ganzhou, China
| | - Xiao Li
- School of Basic Medicine, Gannan Medical University, Ganzhou, China
| | - Jing Zeng
- School of Basic Medicine, Gannan Medical University, Ganzhou, China
| | - Hai Xiao
- Department of Pathology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China
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Li X, Huang Z, Liu S, Zeng X, Xie J, Liu C, Xiao H, Liu R, Li L, Zeng J. 3'-Daidzein sulfonate sodium provides neuroprotection by promoting the expression of the α7 nicotinic acetylcholine receptor and suppressing inflammatory responses in a rat model of focal cerebral ischemia. Am J Transl Res 2018; 10:3455-3464. [PMID: 30662599 PMCID: PMC6291707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 10/31/2018] [Indexed: 06/09/2023]
Abstract
In a previous study using a rat model of focal cerebral ischemia/reperfusion (I/R) injury, we found that 3'-Daidzein sulfonate sodium (DSS), a derivative of daidzein, exerts neuroprotective effects by alleviating brain edema and reducing levels of interleukin (IL)-6. The present study was designed to further examine the potential mechanisms of the neuroprotective properties of DSS in a rat model of cerebral I/R injury. We found that treatment with DSS ameliorated neurological deficit, infarct size, and cerebral water content in rats with cerebral I/R injury. Moreover, treatment with DSS significantly reduced the levels of IL-1β, IL-6, and tumor necrosis factor (TNF)-α in serum and in the ischemic penumbra. Additionally, DSS treatment increased the expression of nicotinic acetylcholine receptor alpha 7 (α7nAChR), and inhibited the expression of glial fibrillary acidic protein, phosphorylated p65 nuclear factor κB, and phosphorylated inhibitor of NF-κBα, suggesting that DSS provides neuroprotection by suppressing inflammatory responses after focal cerebral I/R injury. Notably, α-bungarotoxin, an antagonist of α7nAChR, reversed the neuroprotective effects of DSS after cerebral I/R injury, suggesting that inhibition of α7nAChR expression is sufficient for reversal of the neuroprotective effects of DSS. In conclusion, we found that DSS treatment provides neuroprotection by promoting α7nAChR expression in a rat model of focal cerebral ischemia, thus establishing α7nAChR as a potential therapeutic target in cerebral I/R injury.
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Affiliation(s)
- Xiao Li
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
| | - Zhihua Huang
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
| | - Song Liu
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
| | - Xueliang Zeng
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
- The First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000, People’s Republic of China
| | - Jiali Xie
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
| | - Chaoming Liu
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
| | - Hai Xiao
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
| | - Ruizhen Liu
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
| | - Liangdong Li
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
- The First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000, People’s Republic of China
| | - Jing Zeng
- Gannan Medical UniversityGanzhou 341000, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases of Jiangxi ProvinceGanzhou 341000, People’s Republic of China
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